alexa Occurrence of Selected Pesticides and PCPs in Surface Water Receiving Untreated Discharge in Pakistan | OMICS International| Abstract

ISSN: 2161-0525

Journal of Environmental & Analytical Toxicology

  • Research Article   
  • J Environ Anal Toxicol 2017, Vol 7(5): 500
  • DOI: 10.4172/2161-0525.1000500

Occurrence of Selected Pesticides and PCPs in Surface Water Receiving Untreated Discharge in Pakistan

Maryam Saad1*, Dilawar Farhan Shams1, Waliullah Khan2, Aamir Ijaz3, Muhammad Qasim1, Ayesha Hafeez3, Aisha Khan1, Shams Ali Baig1 and Nisar Ahmed3
1Department of Environmental Sciences, Abdul Wali Khan University, Mardan, Pakistan
2Department of Chemistry, Abdul Wali Khan University, Mardan, Pakistan
3Department of Endocrinology, Armed Forces Institute of Pathology (AFIP), Rawalpindi, Pakistan
*Corresponding Author : Maryam Saad, Department of Environmental Sciences, Abdul Wali Khan University, Mardan, Pakistan, Tel: +92937843369, Email: [email protected]

Received Date: Aug 21, 2017 / Accepted Date: Aug 28, 2017 / Published Date: Sep 03, 2017

Abstract

This study investigated the presence of four pesticides (carbaryl, methomyl, carbofuran and chlorpyrifos) and two personal care products (PCPs) i.e., triclosan (TCS) and caffeine in River Kabul, upper River Indus and Kalpani stream receiving untreated wastewater from major towns in northern Pakistan. PCPs were also examined in domestic wastewater in Mardan district, Pakistan with untreated sewage disposal as common elsewhere in the country. Analysis were performed using liquid chromatography with a triple quadrupole tandem mass spectrometry (LC-MS/MS). All the target pesticides were detected in surface water bodies and in domestic sewage in various concentrations. Methomyl in River Kabul at maximum concentration of 8.3 μg/L was found above its reported LC50 for water fleas. PCPs level in sewage were comparable to other countries but in the absence of any treatment practice, environmental discharge to water bodies was higher by many orders of magnitude compared to treated effluent. Eco-toxicological risk assessment revealed a risk quotient (RQ) of >1 for methomyl, chlorpyrifos and carbofuran for water fleas and fish in River Kabul, River Indus and Kalpani stream and TCS for algae in Kalpani indicating a serious toxicity risk to aquatic organisms in these rivers.

Keywords: Emerging contaminants; Pesticides; Personal care products; Endocrine disrupting chemicals; Environmental risk; Untreated water

Citation: Saad M, Shams DF, Khan W, Ijaz A, Qasim M, et al. (2017) Occurrence of Selected Pesticides and PCPs in Surface Water Receiving Untreated Discharge in Pakistan. J Environ Anal Toxicol 7: 500. Doi: 10.4172/2161-0525.1000500

Copyright: © 2017 Saad M, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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