Journal
ENVIRONMENTAL MONITORING AND ASSESSMENT
Volume 186, Issue 8, Pages 5285-5295Publisher
SPRINGER
DOI: 10.1007/s10661-014-3777-7
Keywords
PBDEs; PCBs; OCPs; PAHs; Sources; Ecological risk
Categories
Funding
- National Basic Research Program of China [2009CB421602]
- National Natural Science Foundation of China [21077134]
- China Ministry of Environmental Protection's Special Funds for Scientific Research on Public Welfare [201009026]
Ask authors/readers for more resources
Polybrominated diphenyl ethers (PBDEs), organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs), and polycyclic aromatic hydrocarbons (PAHs) in 25 surface sediments in three cities (Nantong, Wuxi, and Suzhou) in the Yangtze River Delta, eastern China were measured. The mean concentrations were 378, 45.8, 1.98, 4,002 ng/g for PBDEs, OCPs, PCBs, and PAHs, respectively. Their levels in the sediments in the three cities were generally consistent with the city industrialization. PBDEs and OCPs were markedly dominated by deca-BDE (> 90 %) and DDTs (> 70 %). A principle component analysis of the analytes identified three major factors suggesting different sources of the contaminants in the sediments. PBDEs and the organic carbon in the sediments have common sources from industrial activities; whereas OCPs and PCBs, correlated with the second factor, were mainly from historical sources. The third factor with loadings of PAHs is indicative of various combustion sources. Ecological risk assessment indicated that the potential highest risk is from DDTs, for which 22 sites exceed the effects range low (ERL) values and three sites exceed the effects range median (ERM) value.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available