Mercury speciation in the Persian Gulf sediments

被引:18
作者
Agah, Homira [1 ]
Elskens, Marc [1 ]
Fatemi, S. Mohammad Reza [2 ,3 ]
Owfi, Fereidoon [4 ]
Baeyens, Willy [1 ]
Leermakers, Martine [1 ]
机构
[1] Vrije Univ Brussel, Dept Analyt & Environm Chem, B-1050 Brussels, Belgium
[2] Islamic Azad Univ, Dept Marine Biol, Tehran, Iran
[3] Islamic Azad Univ, Sci & Res Unit, Tehran, Iran
[4] IFRO, Marine Ecol Dept, Tehran, Iran
关键词
Total mercury; Methyl mercury; Organic carbon; Sediment; The Persian Gulf; Headspace GC-AFS; Cold vapor AAS; ENVIRONMENTAL-SAMPLES; METHYLMERCURY; ESTUARY;
D O I
10.1007/s10661-008-0541-x
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The concentrations of total mercury (Hg) and methyl mercury (MMHg) were determined in 78 marine sediments in the Iranian coastal waters of the Persian Gulf along nine transects perpendicular to the coastline. Total Hg ranged from 10 to 56 ng g (-aEuro parts per thousand 1)d.w. and MMHg from 0.1 to 0.4 ng g (-aEuro parts per thousand 1) d.w. The fraction of methyl mercury accounted from 0.3% to 1.1% of the total mercury amount. The organic carbon (OC) content ranged from 0.4% to 1.8%. The present study indicates that the levels of Hg in the sediments of the Iranian coast of the Persian Gulf were all in the concentration range of unpolluted areas regarding Hg (< 100 ng g (-aEuro parts per thousand 1)). The concentrations of total Hg, methyl mercury and organic carbon were generally higher in the deeper stations. Total Hg and MMHg were significantly correlated, but no significant correlations could be found between the Hg and OC levels.
引用
收藏
页码:363 / 373
页数:11
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