Organochlorine pesticides (OCPs) in the Indus River catchment area, Pakistan:status, soil–air exchange and black carbon mediated distribution

Bajwa, Anam and Ali, Usman and Mahmood, Adeel and Chaudhry, Muhammad Jamshed Iqbal and Syed, Jabir Hussain and Li, Jun and Zhang, Gan and Jones, Kevin Christopher and Malik, Riffat Naseem (2016) Organochlorine pesticides (OCPs) in the Indus River catchment area, Pakistan:status, soil–air exchange and black carbon mediated distribution. Chemosphere, 152. pp. 292-300. ISSN 0045-6535

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Abstract

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 mˉ3 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.

Item Type:
Journal Article
Journal or Publication Title:
Chemosphere
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/1600
Subjects:
ID Code:
78716
Deposited By:
Deposited On:
15 Aug 2016 13:40
Refereed?:
Yes
Published?:
Published
Last Modified:
23 Sep 2020 02:42