Regional scale evidence for improvements in surface water chemistry 1990-2001

被引：299

作者：

Skjelkvåle, BL

Stoddard, JL

Jeffries, DS

Torseth, K

Hogåsen, T

Bowman, J

Mannio, J

Monteith, DT

Mosello, R

Rogora, M

Rzychon, D

Vesely, J

Wieting, J

Wilander, A

Worsztynowicz, A

机构：

[1] Norwegian Inst Water Res, N-0411 Oslo, Norway

[2] US EPA, Corvallis, OR 97333 USA

[3] Environm Canada, Natl Water Res Inst, Burlington, ON L7R 4A6, Canada

[4] Norwegian Inst Air Res, Kjeller, Norway

[5] Environm Protect Agcy, Dublin, Ireland

[6] Finnish Environm Inst, Helsinki, Finland

[7] Environm Change Res Ctr, London, England

[8] CNR, Inst Ecosyst Study, Verbania, Italy

[9] Inst Ecol Ind Areas, Katowice, Poland

[10] Czech Geol Survey, Prague, Czech Republic

[11] Umweltbundesamt, Berlin, Germany

[12] Swedish Univ Agr Sci, Uppsala, Sweden

来源：

ENVIRONMENTAL POLLUTION | 2005年 / 137卷 / 01期

关键词：

acidification; deposition; trends; ICP waters; sulphate; nitrate; alkalinity; dissolved organic carbon;

D O I：

10.1016/j.envpol.2004.12.023

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The main aim of the international UNECE monitoring program ICP Waters under the Convention of Long-range Transboundary Air Pollution (CLRTAP) is to assess, on a regional basis, the degree and geographical extent of the impact of atmospheric pollution, in particular acidification, on surface waters. Regional trends are calculated for 12 geographical regions in Europe and North America, comprising 189 surface waters sites. From 1990-2001 sulphate concentrations decreased in all but one of the investigated regions. Nitrate increased in only one region, and decreased in three North American regions. Improvements in alkalinity and pH are widely observed. Results from the ICP Waters programme clearly show widespread improvement in surface water acid-base chemistry, in response to emissions controls programs and decreasing acidic deposition. Limited site-specific biological data suggest that continued improvement in the chemical status of acid-sensitive lakes and streams will lead to biological recovery in the future. (c) 2005 Published by Elsevier Ltd.

引用

页码：165 / 176

页数：12

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