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@article{1549279,
author = {Mitra, Soumita and Corsolini, Simonetta and Pozo, Karla Andrea and Audy, Ondřej and Sarkar, Santosh Kumar and Biswas, Jayanta Kumar},
article_location = {Oxford},
article_number = {April},
doi = {http://dx.doi.org/10.1016/j.chemosphere.2018.12.173},
keywords = {Risk assessment; Sediment quality analyses; Cancer risk; Persistent organic pollutants (POPs); Polyaromatic hydrocarbons (PAHs)},
language = {eng},
issn = {0045-6535},
journal = {Chemosphere},
title = {Characterization, source identification and risk associated with polyaromatic and chlorinated organic contaminants (PAHs, PCBs, PCBzs and OCPs) in the surface sediments of Hooghly estuary, India},
url = {https://www.sciencedirect.com/science/article/pii/S0045653518325141?via%3Dihub},
volume = {221},
year = {2019}
}
TY - JOUR
ID - 1549279
AU - Mitra, Soumita - Corsolini, Simonetta - Pozo, Karla Andrea - Audy, Ondřej - Sarkar, Santosh Kumar - Biswas, Jayanta Kumar
PY - 2019
TI - Characterization, source identification and risk associated with polyaromatic and chlorinated organic contaminants (PAHs, PCBs, PCBzs and OCPs) in the surface sediments of Hooghly estuary, India
JF - Chemosphere
VL - 221
IS - April
SP - 154-165
EP - 154-165
PB - PERGAMON-ELSEVIER SCIENCE LTD
SN - 00456535
KW - Risk assessment
KW - Sediment quality analyses
KW - Cancer risk
KW - Persistent organic pollutants (POPs)
KW - Polyaromatic hydrocarbons (PAHs)
UR - https://www.sciencedirect.com/science/article/pii/S0045653518325141?via%3Dihub
L2 - https://www.sciencedirect.com/science/article/pii/S0045653518325141?via%3Dihub
N2 - The spatial distribution, source identification and ecotoxicological impact of a group of persistent organic pollutants (POPs: dichlorodiphenyltrichloroethane (DDT), hexachlorocyclohexanes (HCH5), poly-chlorobiphenyls (PCBs), polychlorobenzenes (PCBzs)), and polyaromatic hydrocarbons (PAHs) were investigated in surface sediment samples (0-5 cm, <63 mu m grain size) along the ecologically stressed Hooghly River estuary, East India. The results demonstrated a wide range of concentrations (ng/g dry weight) with the following decreasing order: Sigma(16)PAHs (3.3-630) > Sigma 6DDTs (0.14-18.6) > Sigma(7)PCBs (0.28 - 7.7) > Sigma(2)PCBzs (0.01-1.3) > Sigma 5HCH (0.10-0.6), with a dominance of p,p'-DDT and higher molecular weight PAHs. Selected diagnostic ratios indicated a mixture of both pyrolytic and petrogenic sources of PAHs, inputs of weathered DDT and their degradation in oxidizing environment, and a predominance of industrial input over the agricultural wastes. The cumulative impact of the pollutants (effective range medium quotient (ERMq): 0.01-0.16) reflected minimal to low ecotoxicological risk, with highest probability of toxic effects towards surrounding biota at Barrackpore (21%). Sigma 6DDTs exceeded the effect range low value resulting occasional adverse impact to the sediment dwelling organisms. Among the PAHs, the 4-ringed compounds accounted for 68% of the PAHs. Further, carcinogenic PAHs (BaA, Chry, BbF, BkF, BaP, DahP, Inp) possessed highest cancer risk (CR = 2.09 x 10(-3)) to the local population when exposed to the sediments from the studied area and ingestion was found to be the primary process of contamination. The study strongly recommends a systematic monitoring of POPs and PAHs, being the Hooghly River water used by local people for their livelihood.
ER -
MITRA, Soumita, Simonetta CORSOLINI, Karla Andrea POZO, Ondřej AUDY, Santosh Kumar SARKAR and Jayanta Kumar BISWAS. Characterization, source identification and risk associated with polyaromatic and chlorinated organic contaminants (PAHs, PCBs, PCBzs and OCPs) in the surface sediments of Hooghly estuary, India. \textit{Chemosphere}. Oxford: PERGAMON-ELSEVIER SCIENCE LTD, 2019, vol.~221, April, p.~154-165. ISSN~0045-6535. Available from: https://dx.doi.org/10.1016/j.chemosphere.2018.12.173.
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