Ecology

China University of Geosciences Publishes Research in Chlorinated Hydrocarbons

  2012 AUG 10 (VerticalNews) -- By a News Reporter-Staff News Editor at Ecology, Environment & Conservation -- Investigators discuss new findings in Chlorinated Hydrocarbons. According to news reporting from Wuhan, People's Republic of China, by VerticalNews journalists, research stated, "Organochlorine pesticides (OCPs) in the air of Dayan Cave in Guilin were analyzed, to investigate the source and contamination levels. Generally, air outside of the cave had much higher concentrations than inside air, and both outside and inside air showed much lower contamination levels than those observed in other regions in China and abroad."

  The news correspondents obtained a quote from the research from the China University of Geosciences, "The ratios of alpha-/gamma-HCHs and the percentages of beta-(or delta-)HCH implied a residue of historical local technical HCH contamination. The DDT concentrations, o,p'-DDT/p,p'-DDT, and p,p'-DDE/p,p'-DDT suggested fresh DDT-containing products acted as the primary source of DDT for the air in Dayan Cave. An intermediate level concentration of alpha-endosulfan (156.00 pg/m(3)) was observed in the outside air, implying local source was dominant. Based on the similar sources of HCH and DDT and the relationships between outside and inside air, it appeared that outside air pollutants affected on inside HCH and DDT's distribution."

  According to the news reporters, the researchers concluded: "For other OCPs, outside air might be major contributor to inside air contamination under conditions of high concentrations in outside air compared with low levels in inside air for semi-closed karstic caves."

  For more information on this research see: The concentration and distribution of organochlorine pesticides in the air from the karst cave, South China. Environmental Geochemistry and Health, 2012;34(4):493-502. Environmental Geochemistry and Health can be contacted at: Springer, Van Godewijckstraat 30, 3311 Gz Dordrecht, Netherlands. (Springer - www.springer.com; Environmental Geochemistry and Health - www.springerlink.com/content/0269-4042/)

  Our news journalists report that additional information may be obtained by contacting Y.H. Wang, China Univ Geosci, Key Lab Biogeol & Environm Geol, Minist Educ, Wuhan 430074, People's Republic of China.

  Keywords for this news article include: DDT, Wuhan, Pesticides, Agrochemicals, Chlorinated Hydrocarbons, People's Republic of China

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