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Mercury pollution i...
Mercury pollution in the coastal Urmia aquifer in northwestern Iran : potential sources, mobility, and toxicity
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- Amiri, Vahab (author)
- Department of Geology, Faculty of Science, Yazd University, Yazd, Iran
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- Li, Peiyue (author)
- School of Water and Environment, Chang’an University, No. 126 Yanta Road, Xi’an, 710054, China Key Laboratory of Subsurface Hydrology and Ecological Effect in Arid Region of the Ministry of Education, Chang’an University, No. 126 Yanta Road, Xi’an, 710054, China
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- Bhattacharya, Prosun, 1962- (author)
- KTH,Vatten- och miljöteknik,KWR Water Cycle Research Institute, Groningenhaven 7, 3433 PE, Nieuwegein, The Netherlands
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- Nakhaei, Mohammad (author)
- Department of Applied Geology, Faculty of Earth Science, Kharazmi University, Tehran, Iran
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Department of Geology, Faculty of Science, Yazd University, Yazd, Iran School of Water and Environment, Chang’an University, No 126 Yanta Road, Xi’an, 710054, China Key Laboratory of Subsurface Hydrology and Ecological Effect in Arid Region of the Ministry of Education, Chang’an University, No. 126 Yanta Road, Xi’an, 710054, China (creator_code:org_t)
- 2021-01-05
- 2021
- English.
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In: Environmental Science and Pollution Research. - : Springer Science and Business Media Deutschland GmbH. - 0944-1344 .- 1614-7499. ; 28:14, s. 17546-17562
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- The concentration of total dissolved mercury (HgT) in surface and groundwater resources in the coastal parts of Urmia aquifer (NW of Iran) was investigated to identify the possible sources and sinks of mercury and the geochemical mechanisms controlling its mobilization. The distribution of water samples on the Piper diagram demonstrates that most samples have the Ca-Mg-HCO3 facies. From 62 water samples collected in this area, one sample contained HgT concentrations exceeding the maximum contaminant level recommended by the WHO (6 μg/L). The principal component analysis (PCA) produced five principal components. The positive moderate correlation of HgT with EC, Cl, K, Mg, and Na indicated that the weathering of geological formations was one of the main sources of mercury in groundwater samples. Position of water samples in Eh-pH regions where microorganisms involved in mercury methylation and mineralization were potentially active demonstrated that the aquifer had undergone sulfate reduction and had reached the final stage of the terminal electron accepting process (TEAP) sequence in the methane production processes which are limited to only 37% of the water samples that have anaerobic conditions. Some Hg-bearing species are in nonequilibrium geochemical conditions. The supersaturation of water samples with magnetite and goethite indicated that these Fe-bearing minerals could act as the strong reducing agents for the reduction of Hg(II) to Hg(0).
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Oceanografi, hydrologi och vattenresurser (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Oceanography, Hydrology and Water Resources (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Samhällsbyggnadsteknik -- Geoteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Civil Engineering -- Geotechnical Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Samhällsbyggnadsteknik -- Vattenteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Civil Engineering -- Water Engineering (hsv//eng)
Keyword
- Coastal aquifer
- Groundwater
- Hydrogeochemistry
- Mercury
- Mobility
- Source
- coastal zone
- electron
- element mobility
- goethite
- groundwater pollution
- magnetite
- mercury (element)
- methane
- methylation
- mineralization
- principal component analysis
- supersaturation
- Iran
- Orumiyeh
- West Azerbaijan
- ground water
- environmental monitoring
- geology
- pollution
- water pollutant
- Environmental Pollution
- Water Pollutants
- Chemical
Publication and Content Type
- ref (subject category)
- art (subject category)
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