AI Article Synopsis
- Researchers analyzed 25 surface sediment samples from the northern Bering Sea and Chukchi Sea to measure levels of trace metals (Zn, Cr, Cu, V, Cd, and Pb), total organic carbon (TOC), and black carbon (BC).
- The concentrations of trace metals varied significantly, with Zn ranging from 21.06-168.21 mg kg(-1) and Cd from 0.09-0.92 mg kg(-1), highlighting potential contamination in some areas.
- The study also found that the size of sediment grains notably affects the distribution of these trace metals across the sampling sites.
Article Abstract
Concentrations of trace metals (Zn, Cr, Cu, V, Cd and Pb), total organic carbon (TOC), black carbon (BC) and their granulometry were examined in 25 surface sediment samples from the northern Bering Sea, Chukchi Sea and adjacent areas. Trace metal concentrations in the sediments varied from 21.06-168.21 mg kg(-1) for Zn, 8.91-46.94 mg kg(-1) for Cr, 2.69-49.39 mg kg(-1) for Cu, 32.46-185.54 mg kg(-1) for V, 0.09-0.92 mg kg(-1) for Cd, and 0.95-15.25 mg kg(-1) for Pb. The geoaccumulation index (Igeo) indicated that trace metal contamination (Zn and Cd) existed in some stations of the study area. The distribution of grain size plays an important role in influencing the distribution of trace metals (Zn, Cr, Cu, V, and Pb) in sediments from the Chukchi Sea and adjacent areas.
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| http://dx.doi.org/10.1016/j.marpolbul.2011.02.007 | DOI Listing |
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