Bulk atmospheric deposition of persistent organic pollutants and polycyclic aromatic hydrocarbons in Central Europe

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F19%3A00108200" target="_blank" >RIV/00216224:14310/19:00108200 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s11356-019-05464-9" target="_blank" >http://dx.doi.org/10.1007/s11356-019-05464-9</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11356-019-05464-9" target="_blank" >10.1007/s11356-019-05464-9</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Bulk atmospheric deposition of persistent organic pollutants and polycyclic aromatic hydrocarbons in Central Europe

Popis výsledku v původním jazyce

Polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs) and organochlorine pesticides (OCPs) are ubiquitous and toxic contaminants. Their atmospheric deposition fluxes on the regional scale were quantified based on simultaneous sampling during 1 to 5 years at 1 to 6 background/rural sites in the Czech Republic and Austria. The samples were extracted and analysed by means of gas chromatography coupled to mass spectrometry. For all seasons and sites, total deposition fluxes for Sigma(15)PAHs ranged 23-1100 ng m(-2) d(-1), while those for Sigma 6PCBs and Sigma 12OCPs ranged 64-4400 and 410-7800 pg m(-2) d(-1), respectively. Fluoranthene and pyrene were the main contributors to the PAH deposition fluxes, accounting on average for 19% each, while deposition fluxes of PCBs and OCPs were dominated by PCB153 (26%) and gamma-hexachlorobenzene (30%), respectively. The highest deposition flux of Sigma(15)PAHs was generally found in spring, while no seasonality was found for PCB deposition. For deposition fluxes for Sigma(12)OCPs, no clear spatial trend was found, confirming the perception of long-lived regional pollutants. Although most OCPs and PCBs hardly partition to the particulate phase in ambient air, on average, 42% of their deposition fluxes were found on filters, confirming the perception that particle deposition is more efficient than dry gaseous deposition. Due to methodological constraints, fluxes derived from bulk deposition samplers should be understood as lower estimates, in particular with regard to those substances which in ambient aerosols mostly partition to the particulate phase.

Název v anglickém jazyce

Bulk atmospheric deposition of persistent organic pollutants and polycyclic aromatic hydrocarbons in Central Europe

Popis výsledku anglicky

Polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs) and organochlorine pesticides (OCPs) are ubiquitous and toxic contaminants. Their atmospheric deposition fluxes on the regional scale were quantified based on simultaneous sampling during 1 to 5 years at 1 to 6 background/rural sites in the Czech Republic and Austria. The samples were extracted and analysed by means of gas chromatography coupled to mass spectrometry. For all seasons and sites, total deposition fluxes for Sigma(15)PAHs ranged 23-1100 ng m(-2) d(-1), while those for Sigma 6PCBs and Sigma 12OCPs ranged 64-4400 and 410-7800 pg m(-2) d(-1), respectively. Fluoranthene and pyrene were the main contributors to the PAH deposition fluxes, accounting on average for 19% each, while deposition fluxes of PCBs and OCPs were dominated by PCB153 (26%) and gamma-hexachlorobenzene (30%), respectively. The highest deposition flux of Sigma(15)PAHs was generally found in spring, while no seasonality was found for PCB deposition. For deposition fluxes for Sigma(12)OCPs, no clear spatial trend was found, confirming the perception of long-lived regional pollutants. Although most OCPs and PCBs hardly partition to the particulate phase in ambient air, on average, 42% of their deposition fluxes were found on filters, confirming the perception that particle deposition is more efficient than dry gaseous deposition. Due to methodological constraints, fluxes derived from bulk deposition samplers should be understood as lower estimates, in particular with regard to those substances which in ambient aerosols mostly partition to the particulate phase.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10511 - Environmental sciences (social aspects to be 5.7)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Environmental Science and Pollution Research

ISSN

0944-1344

e-ISSN

—

Svazek periodika

26

Číslo periodika v rámci svazku

23

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

13

Strana od-do

23429-23441

Kód UT WoS článku

000477958300020

EID výsledku v databázi Scopus

2-s2.0-85067993084