2014
Particle Size Distribution of Halogenated Flame Retardants and Implications for Atmospheric Deposition and Transport
OKONSKI, Krzysztof, Celine DEGRENDELE, Lisa Emily MELYMUK, Linda LANDLOVÁ, Petr KUKUČKA et. al.Základní údaje
Originální název
Particle Size Distribution of Halogenated Flame Retardants and Implications for Atmospheric Deposition and Transport
Autoři
OKONSKI, Krzysztof (616 Polsko, domácí), Celine DEGRENDELE (250 Francie, domácí), Lisa Emily MELYMUK (124 Kanada, garant, domácí), Linda LANDLOVÁ (203 Česká republika, domácí), Petr KUKUČKA (203 Česká republika, domácí), Šimon VOJTA (203 Česká republika, domácí), Jiří KOHOUTEK (203 Česká republika, domácí), Pavel ČUPR (203 Česká republika, domácí) a Jana KLÁNOVÁ (203 Česká republika, domácí)
Vydání
ENVIRONMENTAL SCIENCE & TECHNOLOGY, WASHINGTON, AMER CHEMICAL SOC, 2014, 0013-936X
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10511 Environmental sciences
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 5.330
Kód RIV
RIV/00216224:14310/14:00079396
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000346686100045
Klíčová slova anglicky
POLYBROMINATED DIPHENYL ETHERS; DIBENZO-P-DIOXINS; GREAT-LAKES BASIN; DECABROMODIPHENYL ETHER; INDOOR DUST; ORGANIC-COMPOUNDS; UNITED-KINGDOM; DRY DEPOSITION; ENVIRONMENTAL OCCURRENCE; PARTICULATE MATTER
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 2. 4. 2015 14:47, Ing. Filip Vaculovič
Anotace
V originále
This study investigates the distribution of polybrominated diphenyl ethers (PBDEs), hexabromocyclododecane (HBCD) and a group of novel flame retardants (NFRs) on atmospheric aerosols. Two high volume cascade impactors were used to collect particulate fractions of ambient air over a one year period at urban and rural sites. The majority of FRs were found on the finest aerosols (<0.95 mu m). Concentrations of HBCD were higher than those of SPBDEs. Moreover, we noted seasonality and spatial differences in particle size distributions, yet a large portion of the observed differences were due to differences in particulate matter (PM) itself. When normalized by PM, the size distributions of the FRs exhibited much greater heterogeneity. Differences existed between the FR distributions by molecular weight, with the higher molecular weight FRs (e.g., BDE-209, Dechlorane Plus) distributed more uniformly across all particulate size fractions. The seasonal, spatial, and compound-specific differences are of crucial importance when estimating dry and wet deposition of FRs as smaller aerosols have longer atmospheric residence times. Estimated wet and dry deposition of four representative FRs (BDE-47, BDE-209, HBCD, and Dechlorane Plus) using size-segregated aerosol data resulted in lower deposition estimates than when bulk aerosol data were used. This has implications for estimates of long-range atmospheric transport and atmospheric residence times, as it suggests that without size-specific distributions, these parameters could be underestimated for FRs.
Návaznosti
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