Historical records of trace metals in core sediments from the Lianyungang coastal sea, Jiangsu, China

We analyzed element concentrations in cores from the Lianyungang coastal sea to determine depositional trends and geochemical sources of metals. Enrichment factors (EFs) and pollution load index (PLI) were used to assess the enrichment and pollution of metals. Profiles of vertical distributions of t...

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Bibliographic Details
Published in:Marine pollution bulletin 2017-03, Vol.116 (1-2), p.56-63
Main Authors: Li, Yu, Li, Hong-guan
Format: Article
Language:English
Subjects:
China
Core sediments
Environmental Monitoring
Geologic Sediments - analysis
Historical records
Lianyungang coastal sea
Metals, Heavy - analysis
Oceans and Seas
Principal component analysis (PCA)
Trace metals
Water Pollutants, Chemical - analysis
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Summary:We analyzed element concentrations in cores from the Lianyungang coastal sea to determine depositional trends and geochemical sources of metals. Enrichment factors (EFs) and pollution load index (PLI) were used to assess the enrichment and pollution of metals. Profiles of vertical distributions of the elements reflected different depositional environments in 3 cores. Cores A and C deposited sediments with rich terrestrial elements by rivers, corresponding to mixed-up patterns in the sediment. Meanwhile, core B was mainly deposited in a less undisturbed depositional environment. Correlations and principal component analysis indicated that sediments were influenced by natural and anthropogenic impacts. According to the EFs, most metals showed no significant enrichment and pollution in the core sediments. Lastly, PLI values (
ISSN:0025-326X
1879-3363
DOI:10.1016/j.marpolbul.2016.12.063