期刊
JOURNAL OF ENVIRONMENTAL MANAGEMENT
卷 92, 期 4, 页码 1185-1197出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jenvman.2010.11.020
关键词
Bohai Bay; Urban estuary; Port of Tianjin; Sediment metal contamination; Environmental assessment
资金
- US New Jersey Sea Grant [6560-0000]
- China Tianjin Science and Technology Committee [06YFGHHZ01500]
Twelve sediment cores were collected in July 2007 in open waters of western Bohai Bay, the Port of Tianjin, and the adjacent estuaries of the Haihe and Yongding Rivers. While overall concentrations of trace metals at incremental depths in these cores met the Marine Sediment Quality (GB18668-2002) criteria of China, the magnitude of both metal enrichment factors (EF) and geoaccumulation indices (I-geo) suggested that pollution with Ag, Cd, Cr, Cu and Zn was occurring in the estuaries and Port. Risk analysis also suggested that Ag and Ni concentrations were sufficiently elevated as to cause adverse biological effects in the study area. Although metal concentrations in western Bohai Bay were of less concern, a positive relationship between EF values and excess Pb-210 activity for several metals suggested that their concentrations were increasing over time. (C) 2010 Elsevier Ltd. All rights reserved.
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