Air-Seawater Exchange of Organochlorine Pesticides along the Sediment Plume of a Large Contaminated River

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F15%3A00086685" target="_blank" >RIV/00216224:14310/15:00086685 - isvavai.cz</a>

Výsledek na webu

<a href="http://pubs.acs.org/doi/abs/10.1021/es505084j" target="_blank" >http://pubs.acs.org/doi/abs/10.1021/es505084j</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/es505084j" target="_blank" >10.1021/es505084j</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Air-Seawater Exchange of Organochlorine Pesticides along the Sediment Plume of a Large Contaminated River

Popis výsledku v původním jazyce

Gaseous exchange fluxes of organochlorine pesticides (OCPs) across the air-water interface of the coastal East China Sea were determined in order to assess whether the contaminated plume of the Yangtze River could be an important regional source of OCPsto the atmosphere. Hexachlorocyclohexanes (HCHs), chlordane compounds (CHLs), and dichlorodiphenyltrichloroethanes (DDTs) were the most frequently detected OCPs in air and water. Air-water exchange was mainly characterized by net volatilization for all measured OCPs. The net gaseous exchange flux ranged 10-240 ng/(m(2).day) for gamma-HCH, 60-370 ng/(m(2).day) for trans-CHL, 97-410 ng/(m(2).day) for cis-CHL, and similar to 0 (e.g., equilibrium) to 490 ng/(m(2).day) for p,p'-DDE. We found that the plume of the large contaminated river can serve as a significant regional secondary atmospheric source of legacy contaminants released in the catchment.

Název v anglickém jazyce

Air-Seawater Exchange of Organochlorine Pesticides along the Sediment Plume of a Large Contaminated River

Popis výsledku anglicky

Gaseous exchange fluxes of organochlorine pesticides (OCPs) across the air-water interface of the coastal East China Sea were determined in order to assess whether the contaminated plume of the Yangtze River could be an important regional source of OCPsto the atmosphere. Hexachlorocyclohexanes (HCHs), chlordane compounds (CHLs), and dichlorodiphenyltrichloroethanes (DDTs) were the most frequently detected OCPs in air and water. Air-water exchange was mainly characterized by net volatilization for all measured OCPs. The net gaseous exchange flux ranged 10-240 ng/(m(2).day) for gamma-HCH, 60-370 ng/(m(2).day) for trans-CHL, 97-410 ng/(m(2).day) for cis-CHL, and similar to 0 (e.g., equilibrium) to 490 ng/(m(2).day) for p,p'-DDE. We found that the plume of the large contaminated river can serve as a significant regional secondary atmospheric source of legacy contaminants released in the catchment.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DJ - Znečištění a kontrola vody

OECD FORD obor

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Projekt

<a href="/cs/project/LM2011028" target="_blank" >LM2011028: RECETOX ? Národní infrastruktura pro výzkum toxických látek v prostředí</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Environmental Science and Technology

ISSN

0013-936X

e-ISSN

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Svazek periodika

49

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

5354-5362

Kód UT WoS článku

000354155800014

EID výsledku v databázi Scopus

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