Pandit G G, Sahu S K, Sharma S, Puranik V D
Environmental Assessment Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India.
Environ Int. 2006 Feb;32(2):240-3. doi: 10.1016/j.envint.2005.08.018. Epub 2005 Oct 5.
Multi-compartment monitoring of residue levels of OCPs in coastal marine environment of Mumbai has been studied. The concentration of total HCHs in seawater varied from 0.16 to 15.92 ng/L and concentrations of total DDT varied from 3.01 to 33.21 ng/L. The total HCH concentration in the sediment samples was in the range of 3.8 to 16.2 ng/g. Gamma-HCH contributed almost 55% to the total HCH. In sediment samples the DDT has higher mean concentration in comparison to its metabolite DDE and DDD. The concentration of total HCHs in different marine species varied from 0.87 to 33.73 ng/g and concentrations of total DDT varied from 0.38 to 34.1 ng/g. The variation in the beta-HCH in different compartments is not significant and this could be due to the high persistence and metabolically inactive nature of this isomer. The alpha-HCH is found to be more dominant in fish samples whereas the gamma-HCH is major contributor in the sediment samples.
对孟买沿海海洋环境中有机氯农药残留水平进行了多隔室监测。海水中总六氯环己烷的浓度在0.16至15.92纳克/升之间，总滴滴涕的浓度在3.01至33.21纳克/升之间。沉积物样品中总六氯环己烷浓度在3.8至16.2纳克/克范围内。γ-六氯环己烷占总六氯环己烷的近55%。在沉积物样品中，滴滴涕的平均浓度高于其代谢物滴滴伊和滴滴滴。不同海洋物种中总六氯环己烷的浓度在0.87至33.73纳克/克之间，总滴滴涕的浓度在0.38至34.1纳克/克之间。不同隔室中β-六氯环己烷的变化不显著，这可能是由于该异构体的高持久性和代谢惰性。在鱼类样品中发现α-六氯环己烷更为占主导地位，而γ-六氯环己烷是沉积物样品中的主要成分。
