[Distribution characteristics of organochlorine pesticides in soil from Daiyun Mountain Range in Fujian, China]

Huan Jing Ke Xue. 2013 Nov;34(11):4427-33.
[Article in Chinese]

Abstract

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.

MeSH terms

  • China
  • Endosulfan / analogs & derivatives
  • Endosulfan / analysis
  • Environmental Monitoring
  • Hexachlorocyclohexane / analysis
  • Hydrocarbons, Chlorinated / analysis*
  • Pesticides / analysis*
  • Soil / chemistry*
  • Soil Pollutants / analysis*

Substances

  • Hydrocarbons, Chlorinated
  • Pesticides
  • Soil
  • Soil Pollutants
  • Hexachlorocyclohexane
  • endosulfan sulfate
  • Endosulfan
  • beta-hexachlorocyclohexane