Effects of urbanization on mercury deposition and New England

被引：25
作者：
Chalmers, Ann T. [1 ]
Krabbenhoft, David P. [2 ]
Van Metre, Peter C. [3 ]
Nilles, Mark A. [4 ]
机构：
[1] US Geol Survey, Montpelier, VT 05601 USA
[2] US Geol Survey, Middleton, WI 53562 USA
[3] US Geol Survey, Austin, TX 78754 USA
[4] US Geol Survey, Lakewood, CO 80225 USA
来源：
ENVIRONMENTAL POLLUTION | 2014年 / 192卷
关键词：
Mercury; Deposition; Sediment; Fish; Urban; FRESH-WATER ECOSYSTEMS; ATMOSPHERIC MERCURY; METHYL MERCURY; WET DEPOSITION; NORTH-AMERICA; RIVER; METHYLMERCURY; SEDIMENT; LAKE; CONTAMINATION;
D O I：
10.1016/j.envpol.2014.05.003
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
We compare total mercury (Hg-T) loading and methylmercury (MeHg) accumulation in streams and lakes from an urbanized area (Boston, Massachusetts) to rural regions of southern New Hampshire and Maine. The maximum Hg-T loading, as indicated by Hg-T atmospheric deposition, Hg-T emissions, and sediment Hg-T concentrations, did not coincide with maximum MeHg concentrations in fish. Urbanized ecosystems were areas of high Hg-T loading but had low MeHg concentrations in fish. Controls on MeHg production and accumulation appeared to be related primarily to Hg-T loading in undeveloped areas, while ecosystem sensitivity to MeHg formation appeared to be more important in regulating accumulation of MeHg in the urban area. Published by Elsevier Ltd.
引用
收藏
页码：104 / 112
页数：9
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