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	<title>Электронный научно-практический журнал «Современные научные исследования и инновации» &#187; environmental impact</title>
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		<title>Heavy metals as an indicator of environmental impact on the health of children</title>
		<link>https://web.snauka.ru/en/issues/2016/05/65997</link>
		<comments>https://web.snauka.ru/en/issues/2016/05/65997#comments</comments>
		<pubDate>Wed, 18 May 2016 17:57:05 +0000</pubDate>
		<dc:creator>Дашкина Татьяна Геннадьевна</dc:creator>
				<category><![CDATA[14.00.00 Medicine]]></category>
		<category><![CDATA[cardiovascular system]]></category>
		<category><![CDATA[environmental impact]]></category>
		<category><![CDATA[health of children]]></category>
		<category><![CDATA[heavy metals]]></category>

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		<description><![CDATA[In modern conditions of development of society the environment and human health have become one of the most difficult problems, the resolution of which requires the efforts of applications in a variety of directions. And learning of the accumulation of heavy metals in biological media of human being is currently one of the most important problems of science and [...]]]></description>
			<content:encoded><![CDATA[<p>In modern conditions of development of society the environment and human health have become one of the most difficult problems, the resolution of which requires the efforts of applications in a variety of directions.</p>
<p>And learning of the accumulation of heavy metals in biological media of human being is currently one of the most important problems of science and it has not only theoretical, but also of great practical importance.</p>
<p>According to the biogeochemical theory of Academician Vernadsky V.I. as a result of biogenic migration of atoms, almost all the elements of the environment to a greater or lesser extent, coming into the internal environment of the human body, thereby determining changes in the chemical composition of the environment.  In this context, content of heavy metals in human biological media are informative indicator for assessing the degree of external biological media contamination. Important is the fact that heavy metals entering the body even in minimal quantities can gradually accumulate, providing its malicious influence. Also important is the fact that heavy metals getting into the body, even in minimal quantities, can gradually accumulate and exert their harmful effects. Studies of recent years established a direct correlation between the growth of population morbidity and anthropogenic changes in habitat. It was found that the chemical composition of human hair is the integral index, and is subject to more rapid change than whole blood, which determines the value of this biological substrate for determination of heavy metals.   The organism of children and adolescents is most sensitive to the adverse effects of the environment. The leading criterion for the health of the growing organism is the physical development and the state of the cardiovascular system, the level of which is closely related to the environmental and socio-economic living conditions.</p>
<p>Formation of health of the child population is influenced by a large number of different nature factors, among which the state of environment plays an important role[4].  The last decades are characterized by a sharp aggravation of the ecological situation for many developed countries, which is particularly expressed in large settlements. Heavy metals, with a broad spectrum of biological activities are among the particularly dangerous for human health of environmental contaminants[1]. Lead is the most well studied, whereas literature data of the other heavy metals are rather limited in this respect. At the same time most of the observations carried out in the industrial regions and mainly relate to the adult population. Children and young people are less studied in this aspect, although children are the &#8220;risk group&#8221; under the influence of adverse factors of different nature. Health indicators are most commonly being studied for any age group and mainly limited by morbidity and physical development. The most favorable object to monitor is children and adolescents, the most vulnerable cohorts of population.</p>
<p>The largest city of Kazakhstan has once again entered the list of most polluted cities in the world. The city of Almaty is one of the most ecologically disadvantaged cities of the country. Pollution degree of separate districts of Almaty by a number of indicators close to the industrial pollution, and in some cases even surpasses it.</p>
<p>Public health is the subject of many research works about Almaty, however, they are concerned either of the adult population, or certain diseases. The main difference of our work lies in the fact that all previous authors have focused only on traditional pollutants and concerned the heavy metals in the environment by incomplete measure. There is no information on a comprehensive assessment of the health status of adolescents 16-17 years old, the city under the impact of heavy metals – the integrated environmental pollutants There is no consensus on the heavy metal levels in biological substrates, especially in the nails, as well as the earliest and most appropriate responses of the body.  Regional standards such as the health indicators of adolescent physical development and performance of the cardiovascular system are not developed and the forecast for the near and distant future is not carried out. It is known that heavy metals may play an important role in the pathogenesis of cardiovascular diseases[3]. It is assumed that in all cases related to blood circulation problems, the content of heavy metal in the in the biological substrates should be taken into account[2].</p>
<p>Studies were performed on 32 school children of 16 - 17 years old (10-11 grades) of the school – gymnasium No.4 named after Pushkin A.S. in Almaty.  There are 12 boys and 20 girls of these school children. The criterion for selection was the obligatory period of residence in the given ecological zone of at least 5 years. The study was conducted in 2 classes during two years.</p>
<p><strong>Physical development.</strong> The growth and development of children are the main indicators of the state of their health.</p>
<p>The average value of growth (H) of the surveyed girls 16 years old and 17years old (160.4 ± 5,6 cm and 161.5 ± 6.5 cm, respectively) were slightly lower than the control group (163.7 ± 5.3 cm and 165.6 ± 4.5). Indicators of body weight (M)  in the main group were  slightly lower compared to the weight of the control group of girls. The values ​​of the CHC (circumference of the head cells) and HC (head circumference) of the surveyed girls living in ecologically unfavorable regions of Almaty and girls in the control group note the opposite picture. Indicators CHC and HC at surveyed girls were higher compared with the control group (Table 1). Table 2 shows the anthropometric indices in boys. When comparing the anthropometric indicators listed in Table 1 and Table 2 indicated that the main indicators of physical development of both girls and boys living in the green market area changed identically, namely growth and body weight were lower, while CHC and HC were higher than in the control group probably revealed deviations in height and body weight, that is what extent reflects the environmental load of their habitat and the possible health risk. However, indicators of CHC and HC to a certain extent increased, probably due to compensatory mechanisms of adaptation that contributed to the normalization of physical development. Good social and living conditions in which our surveyed school children, their healthy lifestyle is also to some extent influenced by the development of basic anthropometric indices and harmony of physical development. Body mass indexes (BMI) of surveyed students calculated by us support the development of their good physical development. Body mass indexes, characterizing the degree of harmony of the physically developed and build up of both the girls and boys were similar in magnitude to each other and nearer to the standard regulations of the control group  (Table 1, 2).</p>
<p>Table 1. Indicators of physical development of girls</p>
<table width="100%" border="1" cellspacing="0" cellpadding="0">
<tbody>
<tr>
<td width="22%">
<p align="center">Indicator</p>
</td>
<td width="19%">
<p align="center">16y.o.</p>
</td>
<td width="18%">
<p align="center">17y.o.</p>
</td>
<td width="19%">
<p align="center">16y.o.</p>
<p align="center">(The control</p>
<p align="center">group)</p>
</td>
<td width="19%">
<p align="center">17y.o.</p>
<p align="center">(The control group)</p>
</td>
</tr>
<tr>
<td width="22%">
<p align="center">Body length (cm)</p>
</td>
<td width="19%">
<p align="center">160.4±5.6</p>
</td>
<td width="18%">
<p align="center">161.5±6.5</p>
</td>
<td width="19%">
<p align="center">163.7±5.3</p>
</td>
<td width="19%">
<p align="center">165.6±4.5</p>
</td>
</tr>
<tr>
<td width="22%">
<p align="center">Weight (kg)</p>
</td>
<td width="19%">
<p align="center">52.5±5.5</p>
</td>
<td width="18%">
<p align="center">54,65±6.4</p>
</td>
<td width="19%">
<p align="center">58,8±7.1</p>
</td>
<td width="19%">
<p align="center">63.7±7.3</p>
</td>
</tr>
<tr>
<td width="22%">
<p align="center">Chest (cm)</p>
</td>
<td width="19%">
<p align="center">87.8±2.0</p>
</td>
<td width="18%">
<p align="center">90.0±5.0</p>
</td>
<td width="19%">
<p align="center">83.9±4.5</p>
</td>
<td width="19%">
<p align="center">84.7±3.3</p>
</td>
</tr>
<tr>
<td width="22%">
<p align="center">HC (cm)</p>
</td>
<td width="19%">
<p align="center">55±0.9</p>
</td>
<td width="18%">
<p align="center">55±2.0</p>
</td>
<td width="19%">
<p align="center">53.8±1.5</p>
</td>
<td width="19%">
<p align="center">53.9±1.5</p>
</td>
</tr>
<tr>
<td width="22%">
<p align="center">BMI</p>
</td>
<td width="19%">
<p align="center">20.40±0.37</p>
</td>
<td width="18%">
<p align="center">21.08±0.49</p>
</td>
<td width="19%">
<p align="center">22.13±0.54</p>
</td>
<td width="19%">
<p align="center">23.39±0.56</p>
</td>
</tr>
</tbody>
</table>
<p>Table 2. Indicators of physical development of adolescents</p>
<table width="93%" border="1" cellspacing="0" cellpadding="0" align="left">
<tbody>
<tr>
<td width="23%">Indicator</td>
<td width="20%">16y.o.</td>
<td width="19%">&nbsp;</p>
<p>17y.o.</p>
<p>&nbsp;</td>
<td width="20%">16y.o.</p>
<p>(The control</p>
<p>group)</td>
<td width="16%">17y.o.</p>
<p>(The control group)</td>
</tr>
<tr>
<td width="23%">Body length (cm)</td>
<td width="20%">
<p align="center">168.2±6.4</p>
</td>
<td width="19%">
<p align="center">173.5±7.2</p>
</td>
<td width="20%">
<p align="center">169.8±7.8</p>
</td>
<td width="16%">
<p align="center">174.7±6.5</p>
</td>
</tr>
<tr>
<td width="23%">Weight (kg)</td>
<td width="20%">
<p align="center">58.5±6.5</p>
</td>
<td width="19%">
<p align="center">60.2±6.3</p>
</td>
<td width="20%">
<p align="center">58.8±7.1</p>
</td>
<td width="16%">
<p align="center">63.7±7.3</p>
</td>
</tr>
<tr>
<td width="23%">The circumference of the head cells (cm)</td>
<td width="20%">
<p align="center">87.8±2.0</p>
</td>
<td width="19%">
<p align="center">89.0±2.0</p>
</td>
<td width="20%">
<p align="center">87.9±2.5</p>
</td>
<td width="16%">
<p align="center">89.6±2.3</p>
</td>
</tr>
<tr>
<td width="23%">The circumference of the head  (cm)</td>
<td width="20%">
<p align="center">56±0.9</p>
</td>
<td width="19%">
<p align="center">57±0.8</p>
</td>
<td width="20%">
<p align="center">56.2±1.7</p>
</td>
<td width="16%">
<p align="center">56.3±1.7</p>
</td>
</tr>
<tr>
<td width="23%">Body mass index</td>
<td width="20%">
<p align="center">20.72±0.40</p>
</td>
<td width="19%">
<p align="center">20.11±0.50</p>
</td>
<td width="20%">
<p align="center">20.58±0.44</p>
</td>
<td width="16%">
<p align="center">21.03±0.53</p>
</td>
</tr>
</tbody>
</table>
<p>&nbsp;</p>
<p>&nbsp;</p>
<p>Thus, the obtained anthropometric indicators, we can conclude that in spite of some variations in the physical development of high school students who live in ecologically unfavorable area compared to standard regulatory measures as a whole we can speak of a harmonious physical development of surveyed students and their body balance. The living conditions of increased environmental burden of health need careful protection and prevention, especially for children and adolescents, the adaptive mechanisms which are in the development stage and 2<sup>nd</sup> formation. This preventive maintenance provides for an active lifestyle, as you can come without traffic only to the physical and spiritual disease. Life &#8211; is a constant movement. Motor activity is a factor in improving the mechanisms of regulation and adaptation of the organism, is the main factor of physical development, it forms volitional qualities. Harmonious physical development is one of the most important indicators of human health.</p>
<p><strong>The content of heavy metals in biological substrates of the school children surveyed.</strong></p>
<p>When taking into account the biological equivalence of heavy metals entering the body in different ways, it becomes obvious that the main danger to the health of children and adolescents is inhalation load. The rest of the possible ways of metals entering the body (food, water, soil, plants) are so insignificant contribution that they can be neglected. Indeed, the retention of heavy metal received into the human body by inhalation is at least 50%, while the water and food -. Only 10% Unfortunately, acceptable and critical levels of heavy metals in the body of people, especially children and adolescents rather fluctuate depending on the area and residence, industrial pollution, etc. It is noted that in areas with a high content of heavy metals, their number in biological substrates children increased by several times compared to the contamination of the environment. Heavy metals have the ability to accumulate in living organisms that poses a risk to human health. Therefore, the most objective method of characterizing the environmental load of metals in the body of a child is the evaluation of their content in the biological <em>substrates.</em> As a biological substrate for studying the accumulation of heavy metals we have selected a sample of hair and nails in subjects’ pupils. Table 3 shows only average Pb and Cd data for boys and girls of 16-17 years old who have been received by us in the hair and nail samples of surveyed students in living near the green market of Almaty.</p>
<p><strong>Table 3.</strong> <strong>Mean content of heavy metals in hair and nails</strong> <strong>in the subjects and the respective </strong><strong>Biological Allowable Level Limit </strong><strong>(mg / kg)</strong></p>
<div align="center">
<table width="100%" border="1" cellspacing="0" cellpadding="0">
<tbody>
<tr>
<td rowspan="2" width="16%">
<p align="center">The name of the element</p>
</td>
<td rowspan="2" width="21%">
<p align="center">Biological Allowable Level Limit (mg/kg)</p>
<p align="center">min – max</p>
</td>
<td colspan="2" width="31%">
<p align="center">Adolescents16-17y.o.</p>
</td>
<td colspan="2" width="30%">
<p align="center">Girls16-17y.o.</p>
</td>
</tr>
<tr>
<td width="15%">
<p align="center">hair</p>
</td>
<td width="15%">
<p align="center">nails</p>
</td>
<td width="14%">
<p align="center">hair</p>
</td>
<td width="15%">
<p align="center">nails</p>
</td>
</tr>
<tr>
<td width="16%">Lead Pb</td>
<td width="21%">0.1-5</td>
<td width="15%">1.69±0,26</td>
<td width="15%">0.98±0.20</td>
<td width="14%">1.33±0.19</td>
<td width="15%">0.87±0.29</td>
</tr>
<tr>
<td width="16%">CadmiumCd</td>
<td width="21%">0.05-0.25</p>
<p align="center">
</td>
<td width="15%">0.09±0.03</td>
<td width="15%">0.29±0.06</td>
<td width="14%">0.07±0.02</td>
<td width="15%">0.17±0.04</td>
</tr>
</tbody>
</table>
</div>
<p>Table 3 shows that the content of lead (Pb)   significantly exceeding a minimum lo limit biologically acceptable level (NOS) in the hair and nail samples from all subjects pupils, while the young men lead kummulyatsiya compared with girls was more pronounced. The content of cadmium (Cd) in biological substrates students also exceeds a minimum limit NOS, however, marked a significant increase of the toxicant in nail samples compared to the hair. Significant excess of minimum permissible levels of toxic metals indicates a possible risk to the health of the school children surveyed, and mostly it may reflect on the state of their cardiovascular system.</p>
<p><strong>The functional state of the cardiovascular system</strong></p>
<p>Table 4. Indicators of the cardiovascular system</p>
<table width="101%" border="1" cellspacing="0" cellpadding="0">
<tbody>
<tr>
<td width="26%">Indicator</td>
<td width="23%">Adolescents</p>
<p>16-17y.o.</td>
<td width="25%">Girls</p>
<p>16-17y.o.</td>
<td width="23%">The control</p>
<p>group</p>
<p>(mean value)</td>
</tr>
<tr>
<td width="26%">Heart rate (beats/min)</td>
<td width="23%">82.5±6.50</td>
<td width="25%">68.5±5.50</td>
<td width="23%">73±0.4</td>
</tr>
<tr>
<td width="26%">Systolic blood pressure (mm of mercury)</td>
<td width="23%">130.0±8.00</td>
<td width="25%">111.5±12.5</td>
<td valign="top" width="23%">106.2±9.5</td>
</tr>
<tr>
<td width="26%">Diastolic blood pressure (mm of mercury)</td>
<td width="23%">65.5±2.5</td>
<td width="25%">63.5±5.5</td>
<td valign="top" width="23%">62.8±7.1</td>
</tr>
<tr>
<td width="26%">Mean arterial pressure (mm of mercury)</td>
<td width="23%">87.5±5.9</td>
<td width="25%">79.5±7.5</td>
<td valign="top" width="23%">77.2±6.9</td>
</tr>
<tr>
<td width="26%">Timed inspiratory capacity</p>
<p>(delay of breathing in sec)</td>
<td width="23%">45.0±20.0</td>
<td width="25%">55.0±15.0</td>
<td width="23%">50±10 and more 60</td>
</tr>
<tr>
<td width="26%">Timed expiratory capacity</p>
<p>(delay of breathing in sec)</td>
<td width="23%">30,0±5,0</td>
<td width="25%">22,0±2,0</td>
<td width="23%">40±10 and more 50</td>
</tr>
</tbody>
</table>
<p>In our study we note significant accelerated blood pressure in boys, and mostly SBP was increased by an average of 18.5% compared with the control group. The young men can be seen increasing DBP, MAP. All this indicates an increase in vascular tone and the predominance of sympathetic regulation of cardiac activity in schoolchildren 16-17 y.o. male living in environmentally disadvantaged areas. This is confirmed by the testimony of the pulse, so that heart rate, heart rate in subjects exceeded the regulatory control group   11%. The girls, readings of blood pressure as compared to the control group varied slightly, the heart rate slightly slows. Samples of Stange and Genchi allow us to determine the state of pulmonary respiration in the subjects on the breath-hold on an inhalation in s (Stange) and exhalation by Genchi. The young men identified deviations from the rules on both samples, indicating that they have the tension of adaptive mechanisms in respiratory System Works. The girls identified deviations from the norm for a sample Genchi. Thus, according to indications of the cardiovascular system, shown in Table 4, it can be assumed that the test students 16 17 years, in the bioassays of hair and nails which revealed excess minimum acceptable amounts of heavy metals in several times, there is a voltage adaptation reactions of the organism, requiring a change of the heart rate, and circulation in the lungs.</p>
<p><strong>Integral body rheography method (IBRM) features</strong></p>
<p>On the basis of the method of IBRM on large statistical material standards set main hemodynamic parameters of healthy people, also developed guidelines stress reactions in healthy individuals.</p>
<p>Standards of central hemodynamics, designed for high school students (mean value) by integral rheography are shown in</p>
<p><strong>Table 5.</strong><strong>Central hemodynamics</strong> <strong>by</strong> <strong>senior</strong> <strong>IBRM</strong></p>
<div align="center">
<table width="101%" border="1" cellspacing="0" cellpadding="0">
<tbody>
<tr>
<td width="26%">Indicator</td>
<td width="23%">Adolescents of</p>
<p>16-17y.o.</td>
<td width="25%">Girls of 16-17 y.o.</td>
<td width="23%">The control group (mean value)</td>
</tr>
<tr>
<td width="26%">Intoxication level (ml)</td>
<td width="23%">84.5±3.0</td>
<td width="25%">71.0±3.5</td>
<td width="23%">59±3.1</td>
</tr>
<tr>
<td valign="top" width="26%">Cardiac output of blood circulation  (ml/min)</td>
<td width="23%">11.7±3.3</td>
<td width="25%">6.5±1.5</td>
<td valign="top" width="23%">4.2±0.38</td>
</tr>
<tr>
<td width="26%">Cardiac index ml/(min*m<sup>2</sup>)</td>
<td width="23%">5.8±0.9</td>
<td width="25%">3.1±1.0</td>
<td valign="top" width="23%">2.72±0.92</p>
<p>&nbsp;</td>
</tr>
<tr>
<td width="26%">Stroke volume index  ml/m<sup>2</sup></td>
<td width="23%">80.5±10.5</td>
<td width="25%">49.7±8</td>
<td valign="top" width="23%">37.8±3.0</td>
</tr>
<tr>
<td width="26%">Aggregated Tonicity Index provisional unit</td>
<td width="23%">75.0±4.0</td>
<td width="25%">70±2</td>
<td width="23%">75±2</td>
</tr>
<tr>
<td width="26%">Reserve ratio (%)</td>
<td width="23%">110.0±10.0</td>
<td width="25%">100±4</td>
<td width="23%">100±1.0</td>
</tr>
</tbody>
</table>
</div>
<p>Rheography method is noninvasive; it is absolutely safe and very informative method for the study of cardiovascular conditions and early diagnosis of these diseases. Comparison of the results obtained from groups of people residing in any particular location, in comparison with the degree of environmental pollution, for example, may to assess the effect of this pollution on the health status of the objects. In our study, the results obtained by rheogram recording the subjects are shown in Table 5 and record the most rheogram for visibility in Fig. 1.</p>
<p>Analysis of central hemodynamics in the surveyed high school students like the boys and girls identified excess variables of intoxication level, cardiac output of blood circulation, cardiac index, and stroke volume index   compared with those of the control group, with a significant increase are observed in young men. Indicators of CIT (coefficient integrated tonicity) and Reserve ratio (coefficient reserve) are close to the normative values. We observed significant differences in the activity of the cardiovascular system at the students surveyed by regulatory indicators among boys at   more   extent fully confirm</p>
<p>the presence of these teenagers tension in the cardio-respiratory system, which can be regarded as a serious risk to their health on the one hand and at the same time, as a manifestation of ecological adaptation to the increased content of heavy metals in the environment.</p>
<p>Р1.</p>
<p>Patient Name: Skomorohov Maxim</p>
<p>Year of birth: 1997, Sex: M</p>
<p>Research: Integral body rheography method (IBRM)</p>
<p>Date: 19/11/2014, Time: 16:16:26.</p>
<p><img class="alignnone size-full wp-image-67810" title="ris1" src="https://web.snauka.ru/wp-content/uploads/2016/03/ris15.png" alt="" width="657" height="332" /></p>
<p><strong><em>Rest 16:22:15</em></strong></p>
<p><strong><em>- At the heart rate according to Stroke volume index performance is significantly increased (29.6%)</em></strong></p>
<p><strong><em>- The state of the circulation by cardiac index is significantly increased (30.7%)</em></strong></p>
<p><strong><em>- The state of the circulation in the r</em></strong><strong><em>eserve ratio is</em></strong> <strong><em>significantly increased (32.8%)</em></strong></p>
<p><strong><em>- Vascular tone</em></strong> <strong><em>by CIT is moderately elevated (7.9%)</em></strong></p>
<p>Based on these data, we can assume that if the surveyed students who live in ecologically unfavorable regions will not take preventive measures to stabilize Show firs central hemodynamics, the future can be predicted failure of physiological adaptation mechanisms and the emergence of premorbid and whether even pathological phenomena in the form of cardiovascular and respiratory diseases.</p>
<p>The person can make to bring order in their body and maintain Health and Ecology. Guarantee of the survival of each of us! Late merely &#8220;think&#8221; about what kind of environment we leave an inheritance to their children, grandchildren and great-grandchildren. Therefore, each of us must now do everything possible to stop the insane destruction of our common home: this is still a wonderful palace - you plan the Earth. After all, together we are force!</p>
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		<title>Organization of good practices for the environmental protection and population health in the aquaculture sector on the example of the Berket Galiun project in Egypt</title>
		<link>https://web.snauka.ru/en/issues/2024/04/101916</link>
		<comments>https://web.snauka.ru/en/issues/2024/04/101916#comments</comments>
		<pubDate>Tue, 30 Apr 2024 09:02:11 +0000</pubDate>
		<dc:creator>Лаур Мустафа</dc:creator>
				<category><![CDATA[25.00.00 Earth science]]></category>
		<category><![CDATA[aquaculture]]></category>
		<category><![CDATA[environmental assessment]]></category>
		<category><![CDATA[environmental impact]]></category>
		<category><![CDATA[fish farming in Egypt]]></category>
		<category><![CDATA[health and safety recommendations]]></category>

		<guid isPermaLink="false">https://web.snauka.ru/issues/2024/04/101916</guid>
		<description><![CDATA[Introduction The potential impacts of aquaculture are varied, ranging from aesthetic aspects to direct pollution problems. Fishing wastewater produces large amounts of pollutants (e.g., nutrients, feed, fecal residues, and associated by-products such as drugs and pesticides) that can have undesirable effects on the environment [1, p. 1; 2, p. 2;]. consequences for wild populations, such [...]]]></description>
			<content:encoded><![CDATA[<p><strong>Introduction</strong></p>
<p>The potential impacts of aquaculture are varied, ranging from aesthetic aspects to direct pollution problems. Fishing wastewater produces large amounts of pollutants (e.g., nutrients, feed, fecal residues, and associated by-products such as drugs and pesticides) that can have undesirable effects on the environment [1, p. 1; 2, p. 2;]. consequences for wild populations, such as genetic disorders [3, p. 1; 4, p. 4], disease transmission by escapees or ingestion of contaminated waste [5, p. 3], and impacts on the ecosystem as a whole. In the “Berket Galiun” project pays special attention to the conditions in Egypt and important principles of environmental impact analysis such as nutrient-related environmental impact variables including: chlorophyll, benthic fauna index, fish index, oxygen concentration, etc. It is obvious that on concentration nutrients can be affected by emissions from many types of sources, such as point sources. Perhaps the most notable problem facing coastal aquaculture is the problem of eutrophication , which is a gradual increase in certain concentrations such as phosphorus and nitrogen, and is that we will discuss in detail in this study as it is one of the most important issues. It is connected to both the Nile River and the Mediterranean Sea, which are the two main sources for the “Berket Galiun” project. Water Eutrophication can have both positive and negative consequences. A positive effect is, for example, an increase in fish catch. Negative consequences include a decrease in catches of certain fish species and changes in fish communities [6, p. 1; 7, p. 2; 8, p. 3], as well as changes in the structure and composition of other key fish species.</p>
<p>Using the right environmental standards, indicators and methods for monitoring, controlling and predicting risks allow an appropriate assessment of the maximum permissible limit of fish production in a given coastal zone, which ultimately serves the interests of continuous improvement of aquaculture performance and its ability to reduce impacts on natural resources. Hence the importance of expanding the concept of environmental monitoring of aquaculture areas and the scientific principles on which it is based. Gesamp et al, 1996 proposes a working definition of monitoring as “the routine collection, usually in accordance with regulatory requirements, of biological, chemical or physical data from predetermined locations to quantify and evaluate environmental changes associated with aquaculture wastes. An important principle underlying environmental monitoring in aquaculture is sampling design, replication and control.</p>
<p><strong>1. History of the development of aquatic organisms in Egypt and its significance</strong></p>
<p>Egypt is the eighth largest aquaculture producer in the world by quantity and the largest in Africa [9, p. 3], accounting for 73.8 percent of African aquaculture by volume and 64.2 percent by value. It employs more than 200,000 workers supporting at least a million families. Aquaculture catches have helped raise per capita consumption from 8.5 kg to almost the FAO international average of about 20 kg in 2014. Egypt produced 13.8 percent of the world&#8217;s farmed tilapia. Accordingly, this is reflected in the total national income coming from the aquaculture industry.</p>
<p>This rapid growth is due to the transition from extensive to semi-intensive aquaculture to intensive aquaculture systems [10, p. 1]. This has also been facilitated by the introduction of new aquaculture feed technologies (e.g. extruded feed), the use of advanced farm management practices [11, p. 2] and government prioritization of aquaculture sector development [12, p. 2]. Thus, the aquaculture industry in Egypt continued to develop until 2017, when the first and largest fish farming project, the “Berket Galiun” project, was created on its lands (research problem).</p>
<p><strong>1.1 The “Berket Galiun” project</strong></p>
<p>A fish farming project that has become the largest marine fish farm in the Middle East. There is 18 acre hatchery area. There are fish, shrimp and feed processing plants costing £1.7 billion. The “Berket Galiun” fish farming project began in 2014 under the leadership of the “National Company for Fish Farming and Aquaculture”, which is part of the Armed Forces. The project is the first to use modern and advanced technologies in fish farming [13, p. 2]. Components and capacities of the “Berkat Galiun” aquaculture complex [14, p. 3] (Table 1).</p>
<p>Table 1 Components and capacities of the Birkat Galiun aquaculture complex</p>
<table border="1" cellspacing="0" cellpadding="5">
<tbody>
<tr>
<td valign="top" width="213">
<p align="center"><strong>Project components</strong></p>
<p align="center"><strong> </strong></p>
</td>
<td valign="top" width="213">
<p align="center"><strong>Distribution/power</strong></p>
<p align="center"><strong> </strong></p>
</td>
<td valign="top" width="213">
<p align="center"><strong>Comments</strong></p>
</td>
</tr>
<tr>
<td valign="top" width="213">
<p align="center">Total allocated area</p>
<p align="center">
</td>
<td valign="top" width="213">
<p align="center">The size of 4,000 feddans will be increased to 21,000 feddans</p>
</td>
<td valign="top" width="213">
<p align="center">1 feddan = 4,200m2</p>
</td>
</tr>
<tr>
<td valign="top" width="213">
<p align="center">Sea water 50,000 m3/hour. 12 giant suction pumps</p>
</td>
<td valign="top" width="213">
<p align="center">50,000 m3/hour.</p>
</td>
<td valign="top" width="213">
<p align="center">12 giant suction pumps</p>
</td>
</tr>
<tr>
<td valign="top" width="213">
<p align="center">Water lift station</p>
<p align="center">
</td>
<td valign="top" width="213">
<p align="center">20,000 m3/h.</p>
<p align="center">
</td>
<td valign="top" width="213">
<p align="center">5 huge suction pumps</p>
</td>
</tr>
<tr>
<td valign="top" width="213">
<p align="center">Ponds for fish and shrimp Cages for sea fish</p>
<p align="center">
</td>
<td valign="top" width="213">
<p align="center">There are a total of 1,359 ponds with 100 cages, each 20 meters in diameter, with a capacity of 25 tons. every/cycle; located at an altitude of 7 m. The depth is additional 7-8 m below.</p>
<p align="center">
</td>
<td valign="top" width="213">
<p align="center">466 For growing and fattening for production of 3,000 tons/year; 83 For freshwater tilapia and mullet; 655 For shrimp production about 2,000 tons/year;</p>
</td>
</tr>
<tr>
<td valign="top" width="213">
<p align="center">Frying and incubation pools</p>
<p align="center">
</td>
<td valign="top" width="213">
<p align="center">155 ponds</p>
<p align="center">
</td>
<td valign="top" width="213">
<p align="center">17 feddans for a marine hatchery consisting of 546 broodstock tanks to produce 20 million marine fish fry and 2 billion shrimp larvae per year.</p>
</td>
</tr>
<tr>
<td valign="top" width="213">
<p align="center">Fish and shrimp meal plant</p>
<p align="center">.</p>
</td>
<td valign="top" width="213">
<p align="center">55 Feddans</p>
<p align="center">120,000 tons of fish and 60,000 tons/year of shrimp</p>
</td>
<td valign="top" width="213"></td>
</tr>
<tr>
<td valign="top" width="213">
<p align="center">Power station</p>
<p align="center">
</td>
<td valign="top" width="213">
<p align="center">80 MW and two generators</p>
</td>
<td valign="top" width="213">
<p align="center">Also a reserve unit for Phase 2.</p>
</td>
</tr>
<tr>
<td valign="top" width="213">
<p align="center">Fish and shrimp processing plant with an area of 20,000 m2.</p>
</td>
<td valign="top" width="213">
<p align="center">Production 100 tons/day</p>
</td>
<td valign="top" width="213">
<p align="center">For value-added products: fresh, frozen, fillet, peeled, semi- or medium-cooked</p>
</td>
</tr>
<tr>
<td valign="top" width="213">
<p align="center">Styrofoam</p>
<p align="center">.</p>
</td>
<td valign="top" width="213">
<p align="center">Plant capacity 900-1000 kg/day</p>
</td>
<td valign="top" width="213">
<p align="center">For packaging for local marketing or export</p>
</td>
</tr>
<tr>
<td valign="top" width="213">
<p align="center">Ice factory</p>
<p align="center">
</td>
<td valign="top" width="213">
<p align="center">40 tons of crushed ice and 20 tons of ice blocks</p>
</td>
<td valign="top" width="213"></td>
</tr>
<tr>
<td valign="top" width="213">
<p align="center">Logistics facilities</p>
</td>
<td valign="top" width="213">
<p align="center">Research laboratories, training</p>
</td>
<td valign="top" width="213"></td>
</tr>
</tbody>
</table>
<p><strong>Results</strong></p>
<p>Characteristics of the impact of the facility’s activities on the environment and management of the environmental protection organization. Environmental issues associated with the aquaculture sector in the “Berket Galiun” project mainly include the following:</p>
<ul>
<li>Threats to biodiversity</li>
<li>Pollution of water systems in the project</li>
<li>Exposure to hazardous materials</li>
</ul>
<p>To prevent and reduce potential environmental impacts resulting from the construction and operation of the “Berket Galiun” farms, a number of management measures can be taken as described below:</p>
<ul>
<li>Avoid the reasons for repeated closure and replacement of aquaculture ponds in a pond project;</li>
<li>Periodic assessment of the level of acidity of the soil in the project and the presence of pesticides and pollutants in it, as well as assessment of the presence of pyrite in natural conditions.</li>
</ul>
<p>Management measures aimed at reducing the risk of introduction of introduced, selectively bred or genetically modified species include:</p>
<ul>
<li>Installation of filter dams to prevent the passage of escaping fish;</li>
<li>Installation and maintenance of filtration systems, which, if necessary, use gravel in pond drainage systems;</li>
<li>Taking into account the hydrological features of the territory to retain water on it and prevent the release of species during periods of flooding;</li>
<li>Conduct periodic inspection of cages and barn nets for defects;</li>
<li>Develop a contingency plan for collecting farmed species when they escape from the farm.</li>
</ul>
<p>Fish farming can also make a significant contribution to marine pollution, in the “Berket Galiun” project as in the following:</p>
<p>1. Soil erosion and sedimentation: Recommended coping strategies include the following:</p>
<ul>
<li>Install edges to prevent corrosion;</li>
<li>Reduction of excavation work and disturbance of sulphurous soil during construction work.</li>
</ul>
<p>2. Draining used water : In pond systems a number of measures can be taken to achieve:</p>
<ul>
<li>Reduce the amount of contaminants present in liquid waste;</li>
<li>Prevent liquid waste from ponds from entering surrounding water bodies;</li>
<li>Treatment of liquid waste before discharge into water bodies to reduce pollution levels.</li>
</ul>
<p>The latrines of aquaculture operations in the “Berket Galiun” project are open to the environment and do not provide a second or third option, so any contaminants that arise have an immediate impact. The following management measures can help prevent wastewater pollution:</p>
<ul>
<li>Make sure there are no “fine particles” in the pelleted food;</li>
<li>Selection of the size of food pellets depending on the age stage of the species;</li>
<li>Periodic monitoring of feed digestion to determine the rate of feed intake and feed is stored in cool, dry places, preferably without vitamins;</li>
<li>Conducting slaughter and processing in areas where liquid waste is easily retained;</li>
<li>Prevent wastewater leakage from rafts and harvest bins;</li>
<li>Equip unloading areas with a watertight yard and surround them with barrier fencing to contain potential spills and prevent contamination from liquid waste.</li>
</ul>
<p><strong>Occupational Health and Safety</strong></p>
<p>Health and safety risks associated with day-to-day activities in the aquaculture sector are categorized as follows:</p>
<ul>
<li>Physical risks;</li>
<li>Exposure to chemicals;</li>
<li>Exposure to waterborne diseases.</li>
</ul>
<p>Measures that can be taken to reduce the risk include:</p>
<ul>
<li>Insulate all electrical installations so they are watertight;</li>
<li>Be sure to use fuses and proper grounding;</li>
<li>Make sure all people have swimming experience;</li>
<li>Training of personnel on maritime safety.</li>
</ul>
<p>Requiring Galiun Pond Project workers to wear no access/mark entry procedures.</p>
<p>2. Exposure to chemicals</p>
<p>During tube pond aquaculture operations , a variety of chemicals may be used to treat and/or control pathogens or to facilitate production. Fertilizers are generally considered caustic and should be handled with caution. General EHS guidelines include recommended recommendations for managing occupational exposure to chemicals [15, p. 4].</p>
<p>3. Potential transmission of waterborne diseases must be addressed through an occupational health and safety program, including specific additional health screenings of workers and the implementation of preventive measures.</p>
<p><strong>CONCLUSION</strong></p>
<p>Activities of the “Berket Galiun” project in Egypt is characterized by environmental impacts such as resource consumption, air emissions, wastewater, hazardous materials handling, waste disposal, noise and pesticide use. The introduction of recommended environmental protection measures into the organization’s activities will reduce the negative impact on the environment.</p>
<p>Activities of the “Berket Galiun” project in Egypt is characterized by impacts on the health and safety of residents, such as noise, physical hazards, and biological and chemical hazards. The introduction of recommended healthcare management measures into the organization’s activities will reduce the negative impact on the health and safety of the population.</p>
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		<title>Environmental Challenges in Modern Mining Practices</title>
		<link>https://web.snauka.ru/en/issues/2025/07/103544</link>
		<comments>https://web.snauka.ru/en/issues/2025/07/103544#comments</comments>
		<pubDate>Wed, 16 Jul 2025 16:03:47 +0000</pubDate>
		<dc:creator>author98211</dc:creator>
				<category><![CDATA[04.00.00 Geology and mineralogy]]></category>
		<category><![CDATA[acid mine drainage]]></category>
		<category><![CDATA[air pollution]]></category>
		<category><![CDATA[biodiversity]]></category>
		<category><![CDATA[ecological monitoring]]></category>
		<category><![CDATA[environmental impact]]></category>
		<category><![CDATA[mining]]></category>
		<category><![CDATA[mitigation strategies]]></category>
		<category><![CDATA[sustainable development]]></category>
		<category><![CDATA[биоразнообразие]]></category>
		<category><![CDATA[добыча полезных ископаемых]]></category>
		<category><![CDATA[загрязнение воздуха]]></category>
		<category><![CDATA[кислотный дренаж]]></category>
		<category><![CDATA[стратегии минимизации]]></category>
		<category><![CDATA[устойчивое развитие]]></category>
		<category><![CDATA[экологический мониторинг]]></category>
		<category><![CDATA[экологическое воздействие]]></category>

		<guid isPermaLink="false">https://web.snauka.ru/issues/2025/07/103544</guid>
		<description><![CDATA[Introduction The global demand for mineral resources continues to grow in parallel with technological advancement and urban development, driving the expansion of mining operations worldwide. While modern mining technologies have significantly increased efficiency and reduced operational costs, they have also led to a new spectrum of environmental risks that challenge the sustainability of resource extraction [...]]]></description>
			<content:encoded><![CDATA[<p><strong>Introduction</strong></p>
<p>The global demand for mineral resources continues to grow in parallel with technological advancement and urban development, driving the expansion of mining operations worldwide. While modern mining technologies have significantly increased efficiency and reduced operational costs, they have also led to a new spectrum of environmental risks that challenge the sustainability of resource extraction industries. The impact of mining extends beyond the physical transformation of landscapes and includes profound effects on air quality, water resources, soil integrity, and biodiversity [1].</p>
<p>In recent decades, efforts to mitigate the environmental consequences of mining have included the introduction of cleaner extraction technologies, more stringent regulatory frameworks, and the adoption of best environmental practices. However, many challenges remain unresolved, particularly in regions where governance is weak or geological conditions are complex. Issues such as acid mine drainage, habitat destruction, dust emissions, and the accumulation of toxic waste continue to pose threats to both ecosystems and human health.</p>
<p>This study aims to identify and analyze the key environmental challenges associated with contemporary mining practices and to evaluate the effectiveness of current mitigation strategies. Special attention is given to the integration of ecological risk assessments into operational planning, the implementation of rehabilitation technologies, and the potential of digital monitoring tools in reducing environmental footprints.</p>
<p><strong>Classification of modern mining methods and their environmental risks</strong></p>
<p>Modern mining techniques can be broadly classified into two categories: surface mining and underground mining [2]. Each method encompasses specific technologies and operational procedures, and both are associated with distinct environmental impacts. Surface mining, including open-pit and strip mining, is characterized by large-scale excavation and removal of overburden. While highly productive, these methods often result in extensive landscape disruption, habitat destruction, and soil erosion. The visual and ecological footprint of surface mining is significant, particularly in sensitive or previously undisturbed regions.</p>
<p>Underground mining, which involves the extraction of minerals through subsurface tunnels and shafts, generally has a reduced surface footprint but presents other environmental concerns. These include groundwater contamination, subsidence, and ventilation-related air emissions. The use of mechanized drilling and blasting techniques introduces additional risks such as dust generation, noise pollution, and chemical leaching from tailings or backfill materials.</p>
<p>In recent years, more advanced techniques such as in-situ leaching, solution mining, and biohydrometallurgy have emerged as alternatives with the potential to reduce physical disturbance. However, they introduce new risks, including chemical leakage, long-term groundwater contamination, and challenges in controlling subsurface reactions. The environmental performance of these methods depends largely on the geological context, operational discipline, and the robustness of monitoring systems.</p>
<p>Understanding the classification and inherent risks of each mining technique is essential for designing site-specific mitigation strategies and for aligning extraction activities with the principles of sustainable development. In the following section, specific categories of environmental impact-air, water, soil, and ecosystems-will be examined in greater detail.</p>
<p><strong>Environmental impacts by category: air, water, soil, and biodiversity</strong></p>
<p>Mining operations influence the environment across multiple dimensions, with air, water, soil, and biological systems being the most affected. Each of these domains presents distinct pathways of degradation, requiring specialized monitoring and mitigation strategies [3].</p>
<p><strong>Air quality</strong> is often compromised through the emission of particulate matter, diesel exhaust, and gaseous pollutants generated by blasting, transportation, and on-site energy use. Dust from exposed surfaces and haul roads can contribute to respiratory problems in nearby communities and impact local climate conditions. The release of sulfur dioxide and nitrogen oxides also contributes to acid rain, further amplifying environmental degradation in surrounding areas.</p>
<p><strong>Water contamination</strong> is among the most critical issues in mining. Acid mine drainage (AMD), caused by the oxidation of sulfide minerals, leads to the release of sulfuric acid and heavy metals into surrounding water bodies. This not only endangers aquatic life but also renders water unsafe for agricultural and human use. Additional threats include sedimentation, elevated conductivity, and contamination from tailings dams and processing fluids.</p>
<p><strong>Soil degradation</strong> results from stripping of vegetation, erosion, and the accumulation of waste materials with poor structural or chemical stability. Heavy metal accumulation, pH imbalance, and reduced organic matter content compromise the fertility and recovery potential of affected soils. In many cases, post-mining landscapes become unsuitable for natural regeneration or agricultural use without active remediation.</p>
<p><strong>Biodiversity loss</strong> occurs both directly-through habitat destruction-and indirectly, via ecosystem fragmentation, pollution, and noise. Endemic and sensitive species are particularly vulnerable, and the recovery of ecological networks is often slow or incomplete, especially in tropical and mountainous biomes [4]. These impacts underline the importance of ecological baseline studies and the application of the mitigation hierarchy (avoid, minimize, restore, offset) in project planning.</p>
<p>Collectively, these environmental consequences highlight the necessity for mining projects to integrate environmental protection into their operational frameworks from the earliest stages of planning.</p>
<p><strong>Review of mitigation strategies and technologies in current practice</strong></p>
<p>In response to the environmental impacts associated with modern mining, a wide array of mitigation strategies and technological solutions has been developed and implemented across the industry. These measures aim to minimize ecological damage, restore disturbed areas, and ensure regulatory compliance throughout the lifecycle of mining operations.</p>
<p><strong>Air pollution</strong> control technologies include dust suppression systems such as water spraying, chemical stabilizers for haul roads, and enclosure of material handling zones. Ventilation systems with particulate filters are used in underground mines to reduce emissions, while real-time air quality monitoring stations support adaptive operational decisions [5]. The transition to electric or hybrid machinery also contributes to emission reduction in both surface and subsurface environments.</p>
<p><strong>Water management</strong> is addressed through a combination of physical, chemical, and biological treatment systems. Passive treatment wetlands, active neutralization reactors, and membrane filtration are applied to mitigate acid mine drainage and remove heavy metals. Tailings management has also evolved, with the adoption of thickened and dry-stack tailings reducing the risk of dam failures and leakage into surrounding ecosystems [6].</p>
<p><strong>Soil and land rehabilitation</strong> practices include contour reshaping, topsoil replacement, and re-vegetation with native species to restore the ecological function of post-mining landscapes. The use of biosolids and composts enhances organic matter content, while phytoremediation is employed to stabilize and extract residual contaminants. Successful rehabilitation depends on early planning and long-term monitoring to ensure soil health and erosion control.</p>
<p><strong>Biodiversity conservation</strong> efforts involve the creation of buffer zones, translocation of vulnerable species, and restoration of migration corridors. Some mining companies partner with conservation organizations to implement offset programs and long-term ecological monitoring [7]. The application of geographic information systems (GIS) and remote sensing technologies allows for high-resolution mapping of ecological change and targeted intervention planning.</p>
<p>Despite these advances, the effectiveness of mitigation measures remains highly dependent on regulatory enforcement, operational discipline, and adequate funding. Integrating environmental considerations into core business processes-not merely as a compliance obligation but as a strategic priority-remains a challenge for many mining operations.</p>
<p><strong>Conclusion</strong></p>
<p>The environmental challenges posed by modern mining practices are multifaceted, spanning atmospheric pollution, water contamination, soil degradation, and biodiversity loss. While technological innovation has enabled significant progress in extraction efficiency and operational safety, its ecological consequences remain a critical concern. The classification of mining methods reveals that each technique carries specific risks, requiring tailored mitigation strategies based on site-specific environmental, geological, and socio-economic conditions.</p>
<p>Current practices in environmental management-ranging from dust suppression and water treatment to land rehabilitation and biodiversity conservation-demonstrate that sustainable mining is achievable, but only through integrated and proactive planning. The success of such efforts depends not only on the availability of advanced technologies but also on regulatory oversight, corporate accountability, and meaningful stakeholder engagement.</p>
<p>To address future challenges, mining enterprises must embed environmental stewardship into their core strategic objectives. This includes adopting adaptive risk assessment models, leveraging digital monitoring tools, and fostering a culture of sustainability throughout the project lifecycle. Only through such a comprehensive and anticipatory approach can the industry reconcile resource extraction with long-term ecological resilience.</p>
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