Concentrations of contaminants in surface water samples collected in west-central Indiana impacted by acidic mine drainage |
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| Authors: | S K Allen J M Allen S Lucas |
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| Institution: | (1) Department of Health and Safety, Indiana State University, 47809 Terre Haute, Indiana, USA;(2) Department of Chemistry, Indiana State University, 51 Science Building, 47809 Terre Haute, Indiana, USA |
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| Abstract: | The results of analyses of surface waters collected from a variety of locations in west-central Indiana indicate extensive contamination by acidic mine drainage. These samples had pH values as low as 2.1 and total iron concentrations as high as 1200 mg1–1. The speciation of iron, expressed as the ratio Fe(II)]/Fe(III)] ranged from 0.08 to 8.27. Measured lead concentrations were as high as 811 mgl–1. In addition, the concentrations of nitrate and sulfate ions were as high as 359 and 624 mgl–1, respectively. |
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| Keywords: | Acidic mine drainage Iron Lead Nitrate Sulfate |
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