Article

Organochlorine pesticides (OCPs) in soils and sediments, southeast China: A case study in Xinghua Bay.

Key Laboratory of Biogeology and Environmental Geology, Ministry of Education, Wuhan 430074, China.
Marine pollution bulletin (impact factor: 2.63). 03/2011; 62(6):1270-5. DOI:10.1016/j.marpolbul.2011.03.010 pp.1270-5
Source: PubMed

ABSTRACT This study evaluated the contamination status and distribution of organochlorine pesticides (OCPs) between Xinghua Bay and adjacent watersheds in Putian region, southeast China. Twenty-five surface soil samples and two sediment cores were collected from two watersheds and the Xinghua Bay, respectively. Results showed that the concentrations of OCPs in samples of the Mulan River Watershed (MRW), the Qiulu River Watershed (QRW), the inner bay core (IBC) and the open bay core (OBC) were in the range of 4.96-38.20ng/g, 4.62-22.80ng/g, 1.84-80.46ng/g and 1.87-23.43ng/g, respectively. The mean concentration of OCPs was in an order: IBC>MRW>QRW>OBC. The higher concentration of OCPs in recent periods may suggest that a certain amount of OCPs were still input to this area.

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Keywords

concentrations
 
contamination status
 
higher concentration
 
IBC>MRW>QRW>OBC
 
inner bay core
 
mean concentration
 
MRW
 
OBC
 
open bay core
 
organochlorine pesticides
 
Putian region
 
QRW
 
recent periods
 
sediment cores
 
southeast China
 
surface soil samples
 
Xinghua Bay
 

Jiaquan Zhang