2016
Organophosphate Esters in Canadian Arctic Air: Occurrence, Levels and Trends
SUHRING, Roxana, Miriam L. DIAMOND, Martin SCHERINGER, Fiona WONG, Monika PUCKO et. al.Základní údaje
Originální název
Organophosphate Esters in Canadian Arctic Air: Occurrence, Levels and Trends
Autoři
SUHRING, Roxana (276 Německo), Miriam L. DIAMOND (124 Kanada), Martin SCHERINGER (756 Švýcarsko, garant, domácí), Fiona WONG (124 Kanada), Monika PUCKO (124 Kanada), Gary STERN (124 Kanada), Alexis BURT (124 Kanada), Hayley HUNG (124 Kanada), Philip FELLIN (124 Kanada), Henrik LI (124 Kanada) a Liisa M. JANTUNEN (124 Kanada)
Vydání
ENVIRONMENTAL SCIENCE & TECHNOLOGY, WASHINGTON, AMER CHEMICAL SOC, 2016, 0013-936X
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30304 Public and environmental health
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 6.198
Kód RIV
RIV/00216224:14310/16:00093537
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000380295700016
Klíčová slova anglicky
BROMINATED FLAME RETARDANTS; SURFACE WATERS; PLASTICIZERS; PESTICIDES; ATMOSPHERE; CHEMICALS; EXPOSURE; OCEAN; FATE; ORGANOCHLORINE
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 2. 3. 2017 12:04, Mgr. Michaela Hylsová, Ph.D.
Anotace
V originále
Fourteen organophosphate esters (OPEs) were measured in the filter fraction of 117 active air samples from yearly ship-based sampling campaigns (2007-2013) and two land-based stations in the Canadian Arctic, to assess trends and long-range transport potential of OPEs. Four OPE's were detected in up to 97% of the samples, seven in 50% or less of the samples, and three were not detected. Median concentrations of Sigma OPEs were 237 and 50 pg m(-3) for ship- and land-based samples, respectively. Individual median concentrations ranged from below detection to 119 pg m(-3) for ethanol, 2-chloro-, phosphate (3:1) (TCEP). High concentrations of up to 2340 pg m(-3) were observed for Tri-n-butyl phosphate (TnBP) at a land-based sampling location in Resolute Bay from 2012, whereas it was only detected in one ship-based sample at a concentration below 100 pg m(-3). Concentrations of halogenated OPEs seemed to be driven by river discharge from the Nelson and Churchill Rivers (Manitoba) and Churchill River and Lake Melville (Newfoundland and Labrador). In contrast, nonhalogenated OPE concentrations appeared to have diffuse sources or local sources close to the land-based sampling stations. Triphenyl phosphate (TPhP) showed an apparent temporal trend with a doubling-time of 11 months (p = 0.044). The results emphasize the increasing relevance of halogenated and nonhalogenated OPEs as contaminants in the Arctic.
Návaznosti
EF15_003/0000469, projekt VaV |
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LM2015051, projekt VaV |
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