[Distribution characteristics of organochlorine pesticides in soil from Daiyun Mountain Range in Fujian, China].
Totally 101 typical surface soil samples were collected from Daiyun Mountain Range, and 20 compounds of OCPs were analyzed by a Ni electron capture detector (GC-ECD) to investigate the horizontal distribution and composition of organochlorine pesticides (OCPs) in the surface soil of Daiyun Mountain Range. The results showed that all OCPs were detected in the soil samples. The detection ratios of OCPs were all over 90%, except for Endrin and beta-HCH. The sum concentration of HCHs, DDTs, Endosulfan and Endosulfan sulfate, accounted for 79.51% of the total OCPs, which were considered to be the dominant OCPs in the Daiyun Mountain Range. The OCPs concentrations in the surface soils ranged from 2.56 to 465.99 ng x g(-1) with a mean value of 38.00 ng x g)(-1). Compared with other regions, the concentrations of HCHs and DDTs in this study stayed in a low pollution level. Endosulfan and Endosulfan sulfate showed a certain degree of risk in the surface soil of the study area. Source analysis showed that new input of lindane and dicofol might occur in the survey region. The historical application was the prime source of Endosulfan. The residue level of OCPs in different lands was in the following order: paddy land > vegetable land > orchard. The OCPs pollution of orchard soil was primarily due to the new input of lindane and dicofol, while the pollution of paddy land was mainly from the usage of Endosulfan.
State Key Laboratory of Biogeology and Environmental Geology, School of Environmental Study, China University of Geosciences, Wuhan 430074, China. Chengkaiqu@sina.cn
Cheng-Kai
CK
Qu
State Key Laboratory of Biogeology and Environmental Geology, School of Environmental Study, China University of Geosciences, Wuhan 430074, China.
Shi-Hua
SH
Qi
State Key Laboratory of Biogeology and Environmental Geology, School of Environmental Study, China University of Geosciences, Wuhan 430074, China.
Li
L
Zhang
State Key Laboratory of Biogeology and Environmental Geology, School of Environmental Study, China University of Geosciences, Wuhan 430074, China.
Huan-Fang
HF
Huang
State Key Laboratory of Biogeology and Environmental Geology, School of Environmental Study, China University of Geosciences, Wuhan 430074, China.
Jia-Quan
JQ
Zhang
State Key Laboratory of Biogeology and Environmental Geology, School of Environmental Study, China University of Geosciences, Wuhan 430074, China.
Yuan
Y
Zhang
State Key Laboratory of Biogeology and Environmental Geology, School of Environmental Study, China University of Geosciences, Wuhan 430074, China.
Dan
D
Yang
State Key Laboratory of Biogeology and Environmental Geology, School of Environmental Study, China University of Geosciences, Wuhan 430074, China.
Hong-Xia
HX
Liu
State Key Laboratory of Biogeology and Environmental Geology, School of Environmental Study, China University of Geosciences, Wuhan 430074, China.
Wei
W
Chen
D002681:China; D004726:Endosulfan / Q000031:analogs & derivatives / Q000032:analysis; D004784:Environmental Monitoring; D001556:Hexachlorocyclohexane / Q000032:analysis; D006843:Hydrocarbons, Chlorinated / Q000032:analysis*; D010575:Pesticides / Q000032:analysis*; D012987:Soil / Q000737:chemistry*; D012989:Soil Pollutants / Q000032:analysis*
D006843:Hydrocarbons, Chlorinated; D010575:Pesticides; D012987:Soil; D012989:Soil Pollutants; D001556:Hexachlorocyclohexane; C544689:endosulfan sulfate; D004726:Endosulfan; C023888:beta-hexachlorocyclohexane