NDLI: The environment quality of heavy metals in sediments from the central Bohai Sea.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Liu, Ming Zhang, Aibin Liao, Yongjie Chen, Bin Fan, Dejiang
Spatial Coverage	China Pacific Ocean
Description	Author Affiliation: Liu M ( Key Lab of Submarine Geosciences and Technology in the Ministry of Education, Ocean University of China, 238 Songling Road, Qingdao 266100, China. Electronic address: mingliuouc@163.com.); Zhang A ( Key Lab of Submarine Geosciences and Technology in the Ministry of Education, Ocean University of China, 238 Songling Road, Qingdao 266100, China.); Liao Y ( Key Lab of Submarine Geosciences and Technology in the Ministry of Education, Ocean University of China, 238 Songling Road, Qingdao 266100, China.); Chen B ( Key Lab of Submarine Geosciences and Technology in the Ministry of Education, Ocean University of China, 238 Songling Road, Qingdao 266100, China.); Fan D ( Key Lab of Submarine Geosciences and Technology in the Ministry of Education, Ocean University of China, 238 Songling Road, Qingdao 266100, China.)
Abstract	The heavy metals (Cu, Co, Ni, Zn, Cr, Pb, Cd) in surface and core sediments from the central Bohai Sea were analyzed to evaluate the temporal/spatial distribution and pollution status. Cd exhibited gradual increase vertically, while others were stable or declined slightly in core sediments. In surface sediments, metals showed higher values in 'central mud area of the Bohai Sea' and the coastal area of the Bohai Bay. Cd and Pb also had high levels in the northeastern part of Bohai Sea. Both the contamination factors (CFs) and the geo-accumulation index (Igeo) indicated that Cu, Co, Ni, and Cr were not at pollution levels, while Pb, Zn, and Cd indicated moderate contamination. Compared with sediment quality guidelines (SQGs), Cu, Zn, Cr, Pb, and Cd were likely to produce occasional adverse biological effects, while Ni showed possible ecotoxicological risks. The combined levels of the metals have a 21% probability of being toxic.
File Format	HTM / HTML
ISSN	0025326X
Issue Number	1
Volume Number	100
e-ISSN	18793363
Journal	Marine Pollution Bulletin
Language	English
Publisher	Elsevier
Publisher Date	2015-11-15
Publisher Place	Great Britain (UK)
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Biology Geologic Sediments Analysis Metals, Heavy Water Pollutants, Chemical China Environmental Monitoring Oceans And Seas Pacific Ocean Spatio-temporal Analysis Water Pollution, Chemical Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Pollution Aquatic Science Oceanography

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