Distribution and risk assessment of pesticide residues in sediment samples from river Ganga, India.

Indiscriminate use of pesticides leads to their entry in to the bottom sediments, where they are absorbed in the sediment's particle and thus, may become the consistent source of aquatic pollution. The present work was carried out to evaluate pesticide residues in the sediment samples and assoc...

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Main Authors: Zeshan Umar Shah, Saltanat Parveen
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2023-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0279993
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author Zeshan Umar Shah
Saltanat Parveen
author_facet Zeshan Umar Shah
Saltanat Parveen
author_sort Zeshan Umar Shah
collection DOAJ
description Indiscriminate use of pesticides leads to their entry in to the bottom sediments, where they are absorbed in the sediment's particle and thus, may become the consistent source of aquatic pollution. The present work was carried out to evaluate pesticide residues in the sediment samples and associated human health risk of commonly used pesticides along the basin of river Ganga. Total of 16 pesticides were analyzed along three stretches of river Ganga. The concentration of pesticides in the upper stretch ranged from ND to 0.103 μg/kg, in the middle stretch ND to 0.112 μg/kg, and in the lower stretch ND to 0.105 μg/kg. Strong positive correlation was found between total organic carbon and total pesticide residues in sediment samples. Carcinogenic and non-carcinogenic values were estimated below the threshold limit suggesting no associated risk. Risks associated with the inhalation route of exposure were found to be higher than the dermal and ingestion routes. Children were found at higher risk at each site from multiple routes of exposure than adult population groups. Toxic unit values were found to be below the threshold value suggesting no risk associated with exposure of pesticides from sediments. However, long term effects on ecological quality due to consistent pesticide exposure must not be ignored. Therefore, the present study focuses on concrete efforts like lowering the irrational used of pesticides, tapping of agricultural and domestic drains, advice to farmers for appropriate use of pesticide doses, to reduce the threat of pesticide pollution in the river system and possible human health risk.
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spelling doaj.art-4aaf2f1a9dd64929972347da359cdf002023-04-05T05:31:36ZengPublic Library of Science (PLoS)PLoS ONE1932-62032023-01-01182e027999310.1371/journal.pone.0279993Distribution and risk assessment of pesticide residues in sediment samples from river Ganga, India.Zeshan Umar ShahSaltanat ParveenIndiscriminate use of pesticides leads to their entry in to the bottom sediments, where they are absorbed in the sediment's particle and thus, may become the consistent source of aquatic pollution. The present work was carried out to evaluate pesticide residues in the sediment samples and associated human health risk of commonly used pesticides along the basin of river Ganga. Total of 16 pesticides were analyzed along three stretches of river Ganga. The concentration of pesticides in the upper stretch ranged from ND to 0.103 μg/kg, in the middle stretch ND to 0.112 μg/kg, and in the lower stretch ND to 0.105 μg/kg. Strong positive correlation was found between total organic carbon and total pesticide residues in sediment samples. Carcinogenic and non-carcinogenic values were estimated below the threshold limit suggesting no associated risk. Risks associated with the inhalation route of exposure were found to be higher than the dermal and ingestion routes. Children were found at higher risk at each site from multiple routes of exposure than adult population groups. Toxic unit values were found to be below the threshold value suggesting no risk associated with exposure of pesticides from sediments. However, long term effects on ecological quality due to consistent pesticide exposure must not be ignored. Therefore, the present study focuses on concrete efforts like lowering the irrational used of pesticides, tapping of agricultural and domestic drains, advice to farmers for appropriate use of pesticide doses, to reduce the threat of pesticide pollution in the river system and possible human health risk.https://doi.org/10.1371/journal.pone.0279993
spellingShingle Zeshan Umar Shah
Saltanat Parveen
Distribution and risk assessment of pesticide residues in sediment samples from river Ganga, India.
PLoS ONE
title Distribution and risk assessment of pesticide residues in sediment samples from river Ganga, India.
title_full Distribution and risk assessment of pesticide residues in sediment samples from river Ganga, India.
title_fullStr Distribution and risk assessment of pesticide residues in sediment samples from river Ganga, India.
title_full_unstemmed Distribution and risk assessment of pesticide residues in sediment samples from river Ganga, India.
title_short Distribution and risk assessment of pesticide residues in sediment samples from river Ganga, India.
title_sort distribution and risk assessment of pesticide residues in sediment samples from river ganga india
url https://doi.org/10.1371/journal.pone.0279993
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