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Eight heavy metals including Cr, Ni, Cu, Zn, As, Cd, Hg, and Pb were investigated in surface water and sediments from a river-connected and a river-disconnected lakes (East Dongting Lake and the Honghu Lake, respectively). Zn had the highest mean concentrations in surface water in both lakes. Pearson’s correlation, principal component analysis, and hierarchical cluster analysis revealed that the distributions...
To study the distribution, sources and enrichment factors of groundwater As in the Shihezi area in Xinjiang, China, 19 indexes in 23 groundwater samples were tested and analyzed with a control area of 1611 km2. Results showed that As concentrations ranged between non-detected and 49.1 μg/L with an average of 11.0 μg/L. Among all the samples, 34.8% of which had As concentrations greater than 10 μg/L,...
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