GEOC 1 |
| Mattias Bäckström, Inger Johansson, and Stefan Karlsson. Man-Technology-Environment Research Centre, Örebro University, Department of Natural Sciences, SE-701 82 Örebro, Sweden |
| The legacy of the pre-industrialised period in Sweden is significant in mid Sweden with thousands of historical mine waste piles from both iron and sulphidic ores. In order to prioritise the most harmful objects for humans and/or surrounding environment environmental risk assessment must be performed. In Sweden a national and objective method for surveying contaminated sites has been developed. The method is based on (i) the toxicity of the contaminant, (ii) amount of pollutant (both total amount and total volume), (iii) potential mobility in the surroundings and (iv) sensibility. Due to the large volumes almost all mine waste piles will be ranked to high in the national method due to large volumes and large amounts of metals. An adaption of the national method for mine waste will be discussed with focus on leachability and acid mine drainage from weathered mine waste. |
|
Chemistry of Metals in Terrestrial and Aquatic Systems
8:00 AM-11:25 AM, Sunday, March 28, 2004 Marriott -- Marquis NE, Oral
Division of Geochemistry |