The Arctic Paradox: Impacts of Climate Changes on Rivers from the Arctic and the Semiarid Increase Mercury Export to the Ocean

被引：10
|
作者：
Lacerda, Luiz D. [1 ]
Marins, Rozane V. [1 ]
Dias, Francisco J. S. [1 ]
Soares, Talita M. [1 ]
机构：
[1] Univ Fed Ceara, INCT Transferencia Mat Continente Oceano INCT TMC, Lab Biogeoquim Costeira, Inst Ciencias Mar, Ave Abolicao 3207, BR-61165081 Fortaleza, CE, Brazil
来源：
REVISTA VIRTUAL DE QUIMICA | 2012年 / 4卷 / 04期
关键词：
Mercury; estuaries; bioavailability; regional and global changes;
D O I：
10.5935/1984-6835.20120034
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The semi-arid coast of Brazil is being strongly affected by regional land use and global climate changes, resulting in decreasing continental runoff to the ocean and increasing the water residence time in estuaries and expanding mangrove areas; these in turn may induce an increase of particulate Hg accumulation within the estuaries and increase the export of dissolved Hg to the ocean. This is, paradoxically, what is presently happening in Arctic rivers due to increasing, not decreasing, continental runoff associated with global climate changes.
引用
收藏
页码：456 / 463
页数：8
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