2019
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
MITRA, Soumita, Simonetta CORSOLINI, Karla Andrea POZO, Ondřej AUDY, Santosh Kumar SARKAR et. al.Základní údaje
Originální název
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
Autoři
MITRA, Soumita (356 Indie), Simonetta CORSOLINI (380 Itálie), Karla Andrea POZO (380 Itálie, garant, domácí), Ondřej AUDY (203 Česká republika, domácí), Santosh Kumar SARKAR (356 Indie) a Jayanta Kumar BISWAS (356 Indie)
Vydání
Chemosphere, Oxford, PERGAMON-ELSEVIER SCIENCE LTD, 2019, 0045-6535
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10511 Environmental sciences
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 5.778
Kód RIV
RIV/00216224:14310/19:00110398
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000460710700018
Klíčová slova anglicky
Risk assessment; Sediment quality analyses; Cancer risk; Persistent organic pollutants (POPs); Polyaromatic hydrocarbons (PAHs)
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 24. 3. 2020 10:09, Mgr. Marie Šípková, DiS.
Anotace
V originále
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.
Návaznosti
EF16_013/0001761, projekt VaV |
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LM2015051, projekt VaV |
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