J 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
Název: RECETOX RI
LM2015051, projekt VaV
Název: Centrum pro výzkum toxických látek v prostředí (Akronym: RECETOX RI)
Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Výzkumná infrastruktura RECETOX