Impact of land uses on heavy metal distribution in the Selenga River system in Mongolia

Myangan, Orgilbold; Kawahigashi, Masayuki; Oyuntsetseg, Bolormaa; Fujitake, Nobuhide

doi:10.1007/s12665-017-6664-z

Cited by 17 publications

(8 citation statements)

References 32 publications

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“…The Mongolian Plateau is rich in metal deposits and has excellent production potential; mining has gradually developed into a pillar industry in the region since the 1990s, but the resulting surface water pollution problem has become increasingly prominent. Studies have shown that the water quality of rivers in northern Mongolia deteriorated due to frequent mining activities and a tendency has been observed to further increase the concentration of toxic heavy metals in the downstream areas of open-pit mines (Myangan et al, 2017).…”

Section: Cause Analysis Of Heavy Metal Pollution In Surface Water Of ...mentioning

confidence: 99%

Impacts of the development of mineral metal resources on surface water quality in the Mongolian Plateau based on meta-analysis

Liu

Jin³

et al. 2022

Front. Environ. Sci.

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The mining of metal resources is one of the major sources of heavy metals in surface water, but studies on the different characteristics of the impact of the exploitation of mineral metal resources on surface water from a large-scale perspective are lacking. In the present study, we quantified the impacts of mineral metal resource development on As, Cu, Cr, Pb, Zn, Hg, Ni, Cd, Mn, and Fe in the overlying water and sediments of surface water under different scenarios (i.e., different geographic units and different mined metal types) using meta-analysis for the Mongolian Plateau of Mongolia and the Inner Mongolia Autonomous Region of China, which is rich in mineral metal resources and has high exploitation and use intensity. Finally, funnel plots and Egger’s regression analysis were used to test the publication bias of the data. The results show that the order of heavy metal content in the overlying water of the Mongolian Plateau was Fe > Mn > As > Zn > Cu > Pb > Cr > Ni > Cd > Hg, and the order of heavy metal content in the sediment was Fe > Mn > Zn > Cr > Pb > Ni > Cu > As > Cd > Hg. In addition, As, Cr, Zn, Hg, Cd, and Pb in overlying water exceeded the standard to different degrees, among which the contents of As and Pb were 1.4 and 1.3 times higher than the World Health Organization guideline, and the contents of Cr, Pb, Hg, Cd were 1.5, 1.3, 25.4, 2.6 times Chinese environmental quality standards for surface water, and the contents of As, Pb, Zn, Hg were 1.4, 1.3, 4.7, 12.7 times Mongolian water quality standards, respectively. The content of As in sediments was 2.6 times the background value of soil environmental quality in Inner Mongolia. Significant differences existed in the content of heavy metal pollutants in surface water of different countries; the content of heavy metals in the overlying water was significantly higher in Inner Mongolia Autonomous Region of China than in Mongolia. Copper and molybdenum polymetallic mines significantly increased the content of Cd, Cr, Cu, Fe, Hg, Pb, and Zn in the overlying water, while the content of As, Cr, Pb, and Zn in overlying water increased significantly due to lead–zinc mining. However, the mining of gold–silver, lead–zinc, copper–molybdenum, and other polymetallic mines all significantly affected the concentration of As in sediments. The results of the present study can provide data support for environmental protection and the restoration of surface water in metal mining areas of the Mongolian Plateau.

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Section: Cause Analysis Of Heavy Metal Pollution In Surface Water Of ...mentioning

confidence: 99%

Impacts of the development of mineral metal resources on surface water quality in the Mongolian Plateau based on meta-analysis

Liu

Jin³

et al. 2022

Front. Environ. Sci.

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“…The Selenga Delta is contaminated with mercury and other toxic metals and chemicals (Roberts et al, 2020). The delta successfully filters out most of these pollutants, preventing them from spreading throughout Lake Baikal (Myangan, Kawahigashi, Oyuntsetseg, & Fujitake, 2017); however, because the delta, which comprises hundreds of square kilometers of wetlands (Pavlov, Ilyicheva, & Savelyeva, 2016), is the breeding ground for many species in the Baikal ecosystem, the toxic contamination of Selenga water is of vital concern to Baikal as a whole. Just south of the Selenga Delta, the obsolete BPPM also remains a source of industrial pollution (see Section 5.3).…”

Section: Current Environmental Concerns At Baikal and In Its Basinmentioning

confidence: 99%

Human impact and ecosystemic health at Lake Baikal

Brown

Gerber²,

Bedulina

et al. 2021

WIREs Water

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Lake Baikal in eastern Siberia is the deepest and (by volume) largest lake on Earth. Among the most ancient lakes, it is home to thousands of endemic species. Lake Baikal is well‐known for its water purity, especially its dominant deep‐water layers, which consist of pristine, drinking‐quality water and is inhabited by unique endemics with enormous biodiversity. But some coastal sites of this giant lake (mainly localized in isolated shallow bays and littoral zones close to settlements and industrial sites) are suffering from an environmental crisis that threatens the water's quality and the ecosystem it supports. As part of the global ecosystem, Lake Baikal is already facing significant impacts from global climate change, which, in turn, increase the risks and consequences of local anthropogenic effects. Although the lake is protected by federal law, human activities are nevertheless having a growing negative impact on its ecosystem. Political, economic, and social factors result in cascading natural consequences in water quality, coastal sustainability, pollution sinks, water level management, forest maintenance, fire control and biodiversity. While Lake Baikal is a UNESCO World Heritage Site, known and valued around the world, it remains vulnerable to worsening threats that must be addressed if humanity is to preserve this unique ecosystem and its endemic species into the future. This article is categorized under: Water and Life > Stresses and Pressures on Ecosystems Water and Life > Conservation, Management, and Awareness Science of Water > Water Quality Engineering Water > Planning Water

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“…River sediments are known to be the storage mechanisms of heavy metals, which eventually become the potential secondary source of metal pollution in water bodies (Yang and Wang, 2017). Metal deposits in streams could contribute to heavy metal pollution of the water body (Myangan et al, 2017). Different heavy metals are known that can impact human health and contribute to a variety of adverse health problems (Romero et al, 2001).…”

Section: Introductionmentioning

confidence: 99%

“…Man's desire to survive despite all odds especially in developing countries has resulted in the consumption of river water without treatment. Heavy metal deposits in river tributaries may contribute to the heavy metal concentration in the main stream (Myangan et al, 2017) thereby endangering human and aquatic life. This study aims to assess the heavy metal content of some river tributaries in an urban settlement in Nigeria.…”

Section: Introductionmentioning

confidence: 99%

Heavy Metal Concentration in Selected River Tributaries in an Urban Settlement in Akure, Nigeria

2022

BJES

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Heavy metals can impact human health and continuous exposure to heavy metals in water can lead to a variety of health issues. Water from surface water bodies such as streams and rivers help to alleviate the problem of water scarcity especially in developing countries. In this study, the heavy metal content of stream water samples was analyzed. Four (4) heavy metals namely Iron (Fe), Chromium (Cr), Cadmium (Cd) and Manganese (Mn) were analyzed in the laboratory and the results obtained were compared with World Health Organization (WHO) standard for potable water. The results revealed that none of the water samples analyzed met WHO standard for Cr in potable water while only 40% of the water samples analyzed conformed to WHO standard for Cd in potable water. Findings of this study revealed that Cr and Cd are heavy metals of concern in the study area. Periodic evaluation of the heavy metal content of surface water in the study area is necessary in order to monitor deterioration in the quality of the water and also to recommend adequate treatment for the water before human consumption.

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Impact of land uses on heavy metal distribution in the Selenga River system in Mongolia

Cited by 17 publications

References 32 publications

Impacts of the development of mineral metal resources on surface water quality in the Mongolian Plateau based on meta-analysis

Impacts of the development of mineral metal resources on surface water quality in the Mongolian Plateau based on meta-analysis

Human impact and ecosystemic health at Lake Baikal

Heavy Metal Concentration in Selected River Tributaries in an Urban Settlement in Akure, Nigeria

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