Detection of Lead (Pb) in Three Environmental Matrices of the Cache River Watershed, Arkansas
| Autor: | Mary K. Kilmer, Jennifer L. Bouldin |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Geologic Sediments
Watershed Health Toxicology and Mutagenesis 010501 environmental sciences 010502 geochemistry & geophysics Toxicology 01 natural sciences Water column Mississippi Rivers Tributary Environmental monitoring Ecotoxicology Humans 0105 earth and related environmental sciences Hydrology geography geography.geographical_feature_category Arkansas Sediment General Medicine Contamination Pollution Lead Environmental science Cache Water Pollutants Chemical Environmental Monitoring |
| Zdroj: | Bulletin of environmental contamination and toxicology. 96(6) |
| ISSN: | 1432-0800 |
| Popis: | Water bodies contaminated with lead (Pb) represent a considerable threat to both human and environmental health. The Cache River, located in northeastern Arkansas has been listed as impaired on the 303(d) list due to Pb contamination. However, historical data for the watershed is limited in both sampled waterways and analyses performed. This study measures concentrations of Pb in three environmental matrices of the Cache River Watershed; dissolved in the water column, total Pb (dissolved + particulate), and sediment-bound Pb. A variety of waterways were sampled including main channel and tributary sites. Frequency of detection and mean concentrations were compared to values for the entire Lower Mississippi Watershed. In general, no significant differences were found for the CRW when compared to the LMRW, with the exception of total Pb which was detected more frequently but at lower concentrations in the CRW than in the LMRW, and sediment Pb, which was detected at a significantly lower frequency in the CRW than the LMRW. |
| Databáze: | OpenAIRE |
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