Abstract:
:Heavy metals (Cu, Pb, Cr, Cd and As) contents in surface sediments from western Laizhou Bay were analysed to evaluate the spatial distribution pattern and their contamination level. As was mainly concentrated in the coastal area near the estuaries and the other metals were mainly concentrated in the central part of the study area. The heavy metals were present at unpolluted levels overall evaluated by the sediment quality guidelines and geoaccumulation index. Principal component analysis suggest that Cu, Pb and Cd were mainly sourced from natural processes and As was mainly derived from anthropogenic inputs. Meanwhile, Cr originated from both natural processes and anthropogenic contributions. Tidal currents, sediments and human activities were important factors affecting the distribution of heavy metals. The heavy metal environment was divided into four subareas to provide a reference for understanding the distribution and pollution of heavy metals in the estuary-bay system.
journal_name
Mar Pollut Bulljournal_title
Marine pollution bulletinauthors
Zhang P,Hu R,Zhu L,Wang P,Yin D,Zhang Ldoi
10.1016/j.marpolbul.2017.03.046subject
Has Abstractpub_date
2017-06-15 00:00:00pages
429-438issue
1eissn
0025-326Xissn
1879-3363pii
S0025-326X(17)30266-7journal_volume
119pub_type
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