J 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

Štítky

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