Trends in Surface Water Chemistry in Acidified Areas in Europe and North America from 1990 to 2008

0521373 - ÚVGZ 2020 RIV CH eng J - Journal Article
Garmo, Ø. - Skjelkvale, B. L. - De Witte, H. - Colombo, L. - Curtis, C. - Folster, J. - Hoffmann, A. - Hruška, Jakub - Hogasen, T. - Jeffries, D. S. - Keller, W. B. - Krám, Pavel - Majer, V. - Monteith, D. T. - Paterson, A. M. - Rogora, M. - Rzychon, D. - Steingruber, S. - Stoddard, J. L. - Vuorenmaa, J. - Worsztynowicz, A.
Trends in Surface Water Chemistry in Acidified Areas in Europe and North America from 1990 to 2008.
Water, Air, and Soil Pollution. Roč. 225, č. 3 (2014), č. článku 1880. ISSN 0049-6979. E-ISSN 1573-2932
Institutional support: RVO:67179843
Keywords : long-term trends * atmospheric nitrogen deposition * new-york * international program * adirondack region * chemical recovery * fresh-waters * icp-waters * acidification * nitrate * Acid deposition * Surfacewaters * Trend analysis * Monitoring network * Chemical recovery
OECD category: Environmental sciences (social aspects to be 5.7)
Impact factor: 1.554, year: 2014
Method of publishing: Open access
https://link.springer.com/article/10.1007%2Fs11270-014-1880-6

Acidification of lakes and rivers is still an environmental concern despite reduced emissions of acidifying compounds. We analysed trends in surface water chemistry of 173 acid-sensitive sites from 12 regions in Europe and North America. In 11 of 12 regions, non-marine sulphate (SO4*) declined significantly between 1990 and 2008 (-15 to59 %). In contrast, regional and temporal trends in nitrate were smaller and less uniform. In 11 of 12 regions, chemical recovery was demonstrated in the form of positive trends in pH and/or alkalinity and/or acid neutralising capacity (ANC). The positive trends in these indicators of chemical recovery were regionally and temporally less distinct than the decline in SO4* and tended to flatten after 1999. From an ecological perspective, the chemical quality of surface waters in acid-sensitive areas in these regions has clearly improved as a consequence of emission abatement strategies, paving the way for some biological recovery.
Permanent Link: http://hdl.handle.net/11104/0306000