Water quality in the Tibetan Plateau: Metal contents of four selected rivers

Xiang, Huang; Sillanpää, Mika; Bu, Duo; Gjessing, Egil T.

doi:10.1016/j.envpol.2008.02.014

Cited by 155 publications

(74 citation statements)

References 25 publications

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“…Huang et al (2008) collected water samples from four major Asian rivers in the Qinghai-Tibet Plateau to investigate major and trace element concentrations. The results showed that the concentrations of Cu, Zn, Ag, Cd, and Cr were generally low while Mg were rather high in Tibetan rivers and Al and Fe (N1 mg/L) were in relatively high concentrations.…”

Section: Major and Trace Elements In Environmental Media Of The Qinghmentioning

confidence: 99%

Inorganic pollution around the Qinghai-Tibet Plateau: An overview of the current observations

Duan

Lü

et al. 2016

Science of The Total Environment

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The Qinghai-Tibet Plateau is the highest geographical unit in the world. Thus, it serves an important role in evaluating long-term ecologic conditions and environmental status and changes over time. This study summarizes major and trace element concentrations in biota and in water and soil. It also pays attention to gaseous pollutant and particle concentrations in air around the Qinghai-Tibet Plateau. The degree of soil heavy metal contamination and the water heavy metal hazard index were respectively evaluated. The contamination degrees of two sampling areas around the Qinghai-Tibet Plateau reached extremely high levels with soil mC d (modified degree of contamination) values exceeding 20. Surprisingly, over 54% of sampling areas showed moderate or more serious soil contamination degree (mC d N 1.5). Moreover, the hazard indexes of two important rivers were 1.56 and 7.59, reaching unacceptable level. The potential risk might be beyond our expectation. Therefore, it should be an urgent and top priority to identify and confirm possible pollution sources around the Qinghai-Tibet Plateau. Then, it is imperative to implement feasible and effective environmental quality control strategies.

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Section: Major and Trace Elements In Environmental Media Of The Qinghmentioning

confidence: 99%

Inorganic pollution around the Qinghai-Tibet Plateau: An overview of the current observations

Duan

Lü

et al. 2016

Science of The Total Environment

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“…However, studies on rivers in the Tibetan Plateau by Huang et al [58] and Zheng et al [65] ) [66]. However, other reservoirs showed elevated Hg concentrations, for example, the Aha Reservoir contains up to 16.64 ng L À1 THg, which is caused by coal mining nearby [67].…”

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confidence: 99%

“…Most studies have focused on rivers that had significant pollution occurrence, such as the Wuli River and the Songhua River. Rivers that originate from the Tibetan Plateau, such as the Yarlung Tsangpo River, the Salween River, the Mekong River, and the Yangtze River (upstream), were also studied because they provide a significant environmental baseline [58]. Reservoirs are also important water bodies, but most studies are now conducted in the reservoirs within Guizhou Province.…”

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confidence: 99%

Environmental mercury in China: A review

Lin

Vogt

Larssen

2012

Enviro Toxic and Chemistry

106

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Abstract-Mercury is a global pollutant that can be transported over long distances and can bioaccumulate. Currently, China is the country that contributes most to atmospheric Hg emissions and has the greatest intentional (industrial) use of Hg. Mercury in the Chinese environment is generally elevated, particularly in air and water bodies. Remote areas in China also show elevated Hg levels in air and water bodies compared to other rural regions in the world. Large river estuaries are often heavily affected by upstream industrial sources.

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“…Water pollution by toxic heavy metals through the discharge of industrial waste is a worldwide environmental problem. The presence of heavy metals in streams, lakes, and groundwater reservoirs has been responsible for several health problems with plants, animals, and human beings [1]. Heavy metal contamination exists in aqueous waste stream from many industries such as metal plating, mining, tanneries, painting, car radiator manufacturing, as well as agricultural sources where fertilizers and fungicidal spray are intensively used [2,3].…”

Section: Introductionmentioning

confidence: 99%

Research on the Batch and Fixed-Bed Column Performance of Red Mud Adsorbents for Lead Removal

2014

Can Chem Trans

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Abstract:The removal of lead from water by red mud using batch and fixed-bed column adsorption techniques was investigated. In a batch study, experiments indicated that the time to attain equilibrium was 2h. The experimental data fitted well to a Langmuir adsorption isotherm and the adsorption capacity was 18.87 mg/g. Fixed-bed column experiments were carried out for different influent lead concentrations, bed depths, and various flow rates. The breakthrough time and exhaustion time decreased with increasing flow rate, decreasing bed depth and increasing influent lead concentration. The bed depth service time model and the Thomas model were applied to the experimental results. Both model predictions were in good agreement with the experimental data for all the process parameters studied, indicating that the models were suitable for red mud fix-bed column design.

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Water quality in the Tibetan Plateau: Metal contents of four selected rivers

Cited by 155 publications

References 25 publications

Inorganic pollution around the Qinghai-Tibet Plateau: An overview of the current observations

Inorganic pollution around the Qinghai-Tibet Plateau: An overview of the current observations

Environmental mercury in China: A review

Research on the Batch and Fixed-Bed Column Performance of Red Mud Adsorbents for Lead Removal

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