Geographical distribution and accumulation features of organochlorine residues in bivalves from coastal areas of South Korea

Levels and Chiral Signatures of Organochlorine Pesticides in Urban Soils of Yinchuan, China

“…The composition of b-HCH in investigated soils was strongly dominated, which suggested that it was lack of recent HCH sources in comparison with the fraction of b-HCHs in technical HCHs (5%-14%, Li et al 2006). And the ratio of a-/c-HCH was relatively stable with a value of 5.0-5.4 for the technical HCH, the ratio for lindane manufactured in China is nearly zero, which can be used as a rough estimation of the source of whether was from technical HCHs or lindane (Kim et al 2002). The isomer ratio of a-/c-HCH ranged from 0.168 to 0.963, indicating that the source of HCHs was from mixture with technical HCHs and lindane in the present study.…”

Levels and distribution of organochlorine pesticides in various media in a mega-city, China

“…It was one of the most common OCP pollutants in the studied environmental media. The ratio of a-HCH/ c-HCH is relatively stable, with a value of 4.64-5.83 for technical HCHs, and almost zero for lindane Gong et al, 2004), and it can thus be used to monitor the HCH source (Kim et al, 2002). In the present study, the ratio of a-HCH/c-HCH varied from 0-3.6, a-HCH can be transported through the atmosphere for considerable distances, indicating the presence of a potential emission source of lindane (Brubaker and Hites, 1998).…”

Investigation of organochlorine pesticides (OCPs) in mollusks collected from coastal sites along the Chinese Bohai Sea from 2002 to 2004

“…They are highly tolerant to many pollutants and exhibit high accumulation property (Bervotes et al, 2005;Kim et al, 2002). Usually, the level of OCPs in organisms is relatively higher than those in the surrounding water.…”