Record Display for the EPA National Library Catalog


Main Title Comparison of Episodic Acidification in Canada, Europe and the United States.
Author Wigington, P. J. ; Davies, T. D. ; Tranter, M. ; Eshleman, K. N. ;
CORP Author University of East Anglia, Norwich (England). School of Environmental Sciences. ;Southampton Univ. (England). Dept. of Oceanography. ;Virginia Univ., Charlottesville. Dept. of Environmental Sciences.;Corvallis Environmental Research Lab., OR.
Publisher c1990
Year Published 1990
Report Number EPA/600/J-92/418;
Stock Number PB93-135754
Additional Subjects Acidification ; Water pollution ; Water quality ; Air water interactions ; Acid neutralizing capacity ; Hydrology ; United States ; Canada ; Europe ; pH ; Man environment interactions ; Natural emissions ; Comparison ; Air pollution ; Streams ; Lakes ; Surface waters ; Episodic acidification ; Foreign technology
Library Call Number Additional Info Location Last
NTIS  PB93-135754 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 30p
Based on reviews and synthesis of literature from Canada, Europe, and the United States, episodic acidification is practically an ubiquitous process in streams and drainage lakes. pH depressions are frequently smaller in systems with low pre-episodic pH levels. Studies on European surface waters have most frequently reported episodes with minimum pH levels below 4.5. In Canada and the United States, studies have also reported a number of systems that have had minimum pH levels below 4.5. Episodic acidification is controlled by a combination of natural and anthropogenic factors. In all three locations acidic deposition has increased the severity (minimum pH reached) of episodes in some streams and lakes.