research activities

Soil Sensivitity Due to Acid Rain and Heavy Metal Deposition in the Upper Elbe/Older Basin

Astrid M. Rautengarten and Jerald L. Schnoor
Center for Global and Regional Environmental Research

and William M. Stigliani
University of Northern Iowa

The area of highest acid concentration is located in southern East Germany were more than 8000 eq/ha/yr were deposited in 1990. The "hot spot" for heavy deposition is further to the east, in Lower Selisia of southern Poland. Cadmium deposition in southern Poland has now accumulated upwards of 60-70 mg per square meter by atmospheric deposition alone. At this time, soil concentrations of Cd do not exceed World Health Organization's (WHO) guidelines, but with 50-100 years more of continued deposition soils over a significant area of southern Poland would exceed guidelines for agricultural plant consumption. This study is a contribution to the project Regional Material Balance Approaches to Long-Term Environmental Policy Planning which is governed and funded by the International Institute of Applied System Analysis (IIASA) in Laxenburg, Austria.

High Concentrations of Mobile Cd in Soils