Western China is home to the largest aggregate of glaciers outside the polar regions, yet little is known about how the glaciers in this area affect the transport and cycling of mercury (Hg) regionally and globally. ... Mercury distribution and deposition in glacier snow over western China Environ Sci Technol. 2012 May 15;46(10):5404-13. doi ...
Mercury (Hg), especially methylmercury (MeHg), which is highly neurotoxic, is a global pollutant that can affect human health because of its accumulation in aquatic products. Poyang Lake, an inland lake in China, has been significantly affected by human activity, yet there is limited understanding of local mercury contamination and potential exposure pathways to …
PM 2.5 bound mercury (PBM 2.5) in the atmosphere is a major component of total mercury, which is a pollutant of global concern and a potent neurotoxicant when converted to methylmercury.Despite its importance, comprehensive macroanalyses of PBM 2.5 on large scales are still lacking. To explore the driving factors, spatiotemporal pollution distribution, and …
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1. Introduction. Mercury (Hg), one of the most toxic heavy metals in the environment [1,2], is often present in ecosystems in Hg 0, Hg +, and Hg 2+ [3,4].Elemental mercury tends to form colorless and odorless mercury vapors, which can remain in the atmosphere for long periods and can be transported over long distances [5,6]pared with …
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The concentrations and distributions of mercury (Hg) in topsoil from four provinces and one municipality in China were investigated. A total of 1,254 samples were collected and analyzed. The average concentrations of Hg were 0.064 mg kg(-1) for Liaoning Province, 0.100 mg kg(-1) for Jiangsu Province …
than other open oceans. The spatial distribution of GEM generally reflected a clear gradient with high levels near the coast of East China and low levels in open waters, sug-gesting the significant atmospheric Hg outflow from East China. The mean concentration of THg in the surface waters was 1.69±0.35ngl−1 and the RHg accounted for
Distribution and speciation of mercury in the Hongfeng Reservoir, Guizhou Province, China HE Tianrong 1,2*, FENG Xinbin1, GUO Yanna1,2, QIU Guangle1, YAN Haiyu 1, and MENG Bo1,2 1 State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, Chi na
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The mercury content in natural gas samples from more than 500 gas wells in eight large gas bearing basins of China was tested, mercury release experiments on two coal samples from different areas ...
Evaluating the mercury distribution and release risks in sediments using high‑resolution technology in Nansi Lake, China Min Zhang1,2 · Cai Li2,3 · Xin Ma1,2 · Liyuan Yang1 · Shiming Ding2 Received: 19 January 2021 / Accepted: 31 May 2021 ... the organisms. In addition, ex situ collection methods can easily aect the concentration and ...
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The distribution and accumulation of mercury ... Given the sheer scale of China's mercury emis-sions, and the potential health risks they pose, several studies ... Each group of sample ex-tractions (n = 20) was accompanied by a series of total 0 5 10 15 20 30 40 50 60 70 100 200 (m)
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The concentration of gaseous elemental mercury (GEM) in the atmosphere of urban Beijing was measured from October 2003 to September 2004 to investigate the origins and spatial-temporal variations ...
exposure to humans in mercury (Hg) mining areas. We com-pared the source and distribution of Hg species in differ-ent compartments of the rice paddy during a complete rice-growing season at two different typical Hg-contaminated mining sites in Guizhou province, China: an abandoned site with a high Hg concentration in soil but a low concentration
Because of the large amount of mercury input, 78.6% of sediments (THg 0.063–0.59 μg g −1) from 14 lakes in China had accumulated mercury at the polluted level, mostly located in central and eastern China (Qin and Tao, 2022). These accumulations of inorganic mercury could be transformed into MeHg and subsequently enter the food web, posing ...
The relationship between maternal mercury (Hg) intake and the risk of spontaneous preterm birth (SPB) remains unclear. We conducted a nested case-control study from a prospective cohort in Shanxi Province, China, to explore their associations. In total, 126 pregnant women with SPB (cases) and 348 co …
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Mercury horizontal spatial distribution in paddy field and accumulation of mercury in rice as well as their influencing factors in a typical mining area of Tongren City, Guizhou, China J Environ Health Sci Eng. 2021 Jul 17;19(2):1555-1567. doi: 10.1007/s40201-021-00711-z. ...
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Mercury-bearing compounds can accumulate in and be released from the sediment. Mercury adsorption, solubility, and deposition are affected by the pH of the sediment, and microbial activity also affects Hg fractionation (Ding et al., 2009). The retained riverbed sediment samples were mostly in the range pH of 5.66 to 8.31, indicating that the ...
The spatial distribution of gaseous elemental Hg (Hg0) concentrations in ambient air were investigated using RA-915+ Zeeman Mercury Analyzer during day time and night time in May 2010, which ...
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Yellow Sea and the northern East China Sea a b s t r a c t mercuryamount ... 25–40 ng/g) of the central Yellow Sea. Ex- ... the spatial distribution of mercury and its controlling factors in the ...