Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
<mark>Journal publication date</mark> | 1/09/2018 |
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<mark>Journal</mark> | Environmental Science and Pollution Research |
Issue number | 25 |
Volume | 25 |
Number of pages | 15 |
Pages (from-to) | 24653-24667 |
Publication Status | Published |
Early online date | 18/06/18 |
<mark>Original language</mark> | English |
This study was designed to monitor organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) in riverine water of Lesser Himalaya along the altitude. Further, the sediment-water partitioning employing organic carbon and black carbon models were assessed. Results revealed higher water levels of organochlorine pesticides (0.07–41.4 ng L−1) and polychlorinated biphenyls (0.671–84.5 ng L−1) in Lesser Himalayan Region (LHR) of Pakistan. Spatially, elevated levels were observed in the altitudinal zone (737–975 masl) which is influenced by anthropogenic and industrial activities. Sediment-water partitioning of OCPs and PCBs were deduced using field data by employing one-carbon (fOCKOC) and two-carbon Freundlich models (fOCKOC + fBCKBCCW nF−1). Results suggested improved measured vs predicted model concentrations when black carbon was induced in the model and suggested adsorption to be the dominant mechanism in phase partitioning of organochlorines in LHR.