Assessing residual status and spatial variation of current-use pesticides under the influence of environmental factors in major cash crop growing areas of Pakistan

Ansari, Sundas and Waheed, Sidra and Ali, Usman and Jones, Kevin C. and Sweetman, Andrew James and Halsall, Crispin and Malik, Riffat Naseem (2018) Assessing residual status and spatial variation of current-use pesticides under the influence of environmental factors in major cash crop growing areas of Pakistan. Chemosphere, 212. pp. 486-496. ISSN 0045-6535

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Abstract

The status of seven currently used pesticides were assessed under the influence of soil parameters in surface soils of cash crop growing areas of Pakistan. Chlorpyrifos occurred in highest mean concentration (1.18 mg kg−1). Selected pesticides exhibited higher affinity towards both organic carbon and black carbon fractions. The δ13C stable carbon isotopic fraction of inorganic carbon was also used as a tracer and disclosed high retention of total organic carbon in Swat and Swabi sites. Statistical analysis revealed that carbon storage was primarily influenced by altitude and temperature. Soil clay mineral oxides of aluminum and iron positively correlated with organic carbon and selected pesticides (chlorpyrifos and cyprodinil). Soil to plant bio-concentration ratios predicted heightened uptake of azinfos and diazinon in major cash crop bio mass. Occupational risk via soil ingestion expressed no significant threat to the farmer community.

Item Type: Journal Article
Journal or Publication Title: Chemosphere
Additional Information: This is the author’s version of a work that was accepted for publication in Chemosphere. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Chemosphere, 212, 2018 DOI: 10.1016/j.chemosphere.2018.07.164
Uncontrolled Keywords: /dk/atira/pure/subjectarea/asjc/1600
Subjects:
Departments: Faculty of Science and Technology > Lancaster Environment Centre
ID Code: 126962
Deposited By: ep_importer_pure
Deposited On: 17 Aug 2018 11:28
Refereed?: Yes
Published?: Published
Last Modified: 26 Feb 2020 04:34
URI: https://eprints.lancs.ac.uk/id/eprint/126962

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