Bajwa Anam, Ali Usman, Mahmood Adeel, Chaudhry Muhammad Jamshed Iqbal, Syed Jabir Hussain, Li Jun, Zhang Gan, Jones Kevin C, Malik Riffat Naseem
Environmental Biology and Ecotoxicology Laboratory, Department of Environmental Sciences, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan.
Department of Biosciences, COMSATS Institute of Information Technology, Islamabad, P.O. 45550, Pakistan.
Chemosphere. 2016 Jun;152:292-300. doi: 10.1016/j.chemosphere.2016.01.024. Epub 2016 Mar 12.
Organochlorine pesticides (OCPs) were investigated in passive air and soil samples from the catchment area of the Indus River, Pakistan. ∑15OCPs ranged between 0.68 and 13.47 ng g(-1) in soil and 375.1-1975 pg m-(3) in air. HCHs and DDTs were more prevalent in soil and air compartments. Composition profile indicated that β-HCH and p,p'-DDE were the dominant of all metabolites among HCHs and DDTs respectively. Moreover, fBC and fTOC were assessed and evaluated their potential role in the distribution status of OCPs. The fTOC and fBC ranged between 0.77 and 2.43 and 0.04-0.30% respectively in soil. Regression analysis showed the strong influence of fBC than fTOC on the distribution of OCPs in the Indus River catchment area soil. Equilibrium status was observed for β-HCH, δ-HCH, p,p'-DDD, o,p'-DDT, TC, HCB and Heptachlor with ff ranged between 0.3 and 0.59 while assessing the soil-air exchange of OCPs.
对巴基斯坦印度河流域集水区的被动空气和土壤样本中的有机氯农药（OCPs）进行了调查。土壤中15种OCPs的总量在0.68至13.47 ng g⁻¹之间，空气中为375.1 - 1975 pg m⁻³。六氯环己烷（HCHs）和滴滴涕（DDTs）在土壤和空气组分中更为普遍。组成特征表明，β - 六氯环己烷和p,p'-二氯二苯二氯乙烯分别是HCHs和DDTs中所有代谢物中的主要成分。此外，评估了fBC和fTOC，并评估了它们在OCPs分布状况中的潜在作用。土壤中fTOC和fBC分别在0.77至2.43和0.04 - 0.30%之间。回归分析表明，在印度河流域集水区土壤中，fBC对OCPs分布的影响比fTOC更强。在评估OCPs的土壤 - 空气交换时，观察到β - 六氯环己烷、δ - 六氯环己烷、p,p'-滴滴滴、o,p'-滴滴涕、毒杀芬（TC）、六氯苯（HCB）和七氯的平衡状态，ff在0.3至0.59之间。
