Journal
ENVIRONMENTAL GEOLOGY
Volume 51, Issue 3, Pages 387-397Publisher
SPRINGER
DOI: 10.1007/s00254-006-0334-x
Keywords
mining activities; contamination; potential toxic elements; environmental risk; health risk; Slovakia
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The Zlata Idka village is a typical mountainous settlement. As a consequence of more than 500 years of mining activity, its environment has been extensively affected by pollution from potentially toxic elements. This paper presents the results of an environmental-geochemical and health research in the Zlata Idka village, Slovakia. Geochemical analysis indicates that arsenic (As) and antimony (Sb) are enriched in soils, groundwater, surface water and stream sediments. The average As and Sb contents are 892 mg/kg and 818 mg/kg in soils, 195 mg/kg and 249 mg/kg in stream sediments, 0.028 mg/l and 0.021 mg/l in groundwater and 0.024 mg/l and 0.034 mg/l in surface water. Arsenic and Sb concentrations exceed upper permissible limits in locally grown vegetables. Within the epidemiological research the As and Sb contents in human tissues and fluids have been observed (blood, urine, nails and hair) in approximately one third of the village's population (120 respondents). The average As and Sb concentrations were 16.3 mu g/l and 3.8 mu g/l in blood, 15.8 mu g/l and 18.8 mu g/l in urine, 3,179 mu g/kg and 1,140 mu g/kg in nails and 379 mu g/kg and 357 mu g/kg in hair. These concentrations are comparatively much higher than the average population. Health risk calculations for the ingestion of soil, water, and vegetables indicates a very high carcinogenic risk (> 1/1,000) for as content in soil and water. The hazard quotient [HQ=average daily dose (ADD)/reference dose (RfD)] calculation method indicates a HQ > 1 for groundwater As and Sb concentrations.
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