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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 a 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, roč.~221, April, s.~154-165. ISSN~0045-6535. Dostupné z: https://dx.doi.org/10.1016/j.chemosphere.2018.12.173.
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