A medical geology study of an arsenic-contaminated area in Kouhsorkh, NE Iran
| Autor: | Arezoo Abedi, Samira Tabasi |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Geologic Sediments
Mineralization (geology) Environmental Engineering Geochemistry chemistry.chemical_element Mineralogy Fresh Water Iran Skin Diseases Arsenic Conglomerate Medical geology Geochemistry and Petrology Humans Environmental Chemistry Geography Medical General Environmental Science Water Science and Technology geography geography.geographical_feature_category Andesite Environmental Exposure General Medicine Contamination Arsenic contamination of groundwater Volcanic rock chemistry Water Resources Geology |
| Zdroj: | Environmental Geochemistry and Health. 34:171-179 |
| ISSN: | 1573-2983 0269-4042 |
| DOI: | 10.1007/s10653-011-9424-0 |
| Popis: | High concentrations of arsenic were determined in sediments from the Kouhsorkh area, Khorasan province, NE Iran. The main rock formations in the area consist of Tertiary volcanic rocks as Tuffaceous sandstone, polymictic conglomerate and andesite. Furthermore, some As-Sb-Au mineralization occurred in this area. Concentrations of arsenic in sediments were determined to range between 4.2 and 268.2 ppm, exceeding US EPA (2004) limits. It seems that young volcanic activity is one of the most important factors for arsenic contamination in this area. The first stage of this medical geology study was done at 2 villages in the Kouhsorkh area in which the arsenic concentration in water is high. People in this residential area suffer from skin diseases including hyperpigmentation, hypopigmentation, keratosis on head, hands, and feet. The 24-h urine specimens were tested for arsenic, the level of total arsenic in urine were determined to range between 13.66 and 75.92 μg/l day, exceeding permissible limits from 5 to 40 μg/day. More systematic studies are needed to determine the link between As exposure and its related diseases. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink