Trends in mercury concentrations and methylation in Minamata Bay, Japan, between

被引：9

作者：

Matsuyama, Akito ^{[1
]}

Yano, Shinichiro ^{[2
]}

Taniguchi, Yoko ^{[1
]}

Kindaichi, Michiaki ^{[1
]}

Tada, Akihide ^{[3
]}

Wada, Minoru ^{[4
]}

机构：

[1] Natl Inst Minamata Dis NIMD, Dept Int Affairs & Res, 4058-18 Hama, Kumamoto 405818, Japan

[2] Kyushu Univ, Fac Engn, Nishi Ku, 744 Motooka, Fukuoka 8190395, Japan

[3] Nagasaki Univ, Fac Engn, 1-14 Bunkyo Machi, Nagasaki 8528521, Japan

[4] Nagasaki Univ, Fac Fisheries, 1-14 Bunkyo Machi, Nagasaki 8528521, Japan

来源：

MARINE POLLUTION BULLETIN | 2021年 / 173卷

关键词：

Minamata Bay; Hg monitoring; Methylation; SPM; Microorganism; TAPAJOS RIVER-BASIN; WATER COLUMN; SURFACE SEDIMENT; HUMAN HAIR; METHYLMERCURY; SPECIATION; DEMETHYLATION; REDUCTION; COASTAL; SEA;

D O I：

10.1016/j.marpolbul.2021.112886

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Methylmercury concentrations in Minamata Bay are high, but the cause is unclear. We conducted a basic study on the behavior of methylmercury in Minamata Bay seawater; the findings suggest that mercury methylation may occur throughout the year in Minamata Bay. Seawater temperature, salinity, and concentrations of dissolved organic carbon were the environmental factors that affected methylation, and the degree of methylation was closely related to bacterial community structure. The concentration of methylmercury in suspended particulate matter was highest 10 m below the surface and decreased with greater depths. We did not observe a correlation between methylmercury concentrations in suspended particulate matter and concentrations of dissolved methylmercury.

引用

页数：13

共 50 条

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