2016
Sampling artifacts in active air sampling of semivolatile organic contaminants: Comparing theoretical and measured artifacts and evaluating implications for monitoring networks
MELYMUK, Lisa Emily, Pernilla BOHLIN-NIZZETTO, Roman PROKEŠ, Petr KUKUČKA, Jana KLÁNOVÁ et. al.Základní údaje
Originální název
Sampling artifacts in active air sampling of semivolatile organic contaminants: Comparing theoretical and measured artifacts and evaluating implications for monitoring networks
Autoři
MELYMUK, Lisa Emily (124 Kanada, domácí), Pernilla BOHLIN-NIZZETTO (752 Švédsko), Roman PROKEŠ (203 Česká republika, domácí), Petr KUKUČKA (203 Česká republika, domácí) a Jana KLÁNOVÁ (203 Česká republika, garant, domácí)
Vydání
Environmental Pollution, OXFORD, OXON, ENGLAND, ELSEVIER SCI LTD, 2016, 0269-7491
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30304 Public and environmental health
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 5.099
Kód RIV
RIV/00216224:14310/16:00093308
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000383825100013
Klíčová slova anglicky
Air sampling; Semivolatile organic contaminants; Breakthrough; Persistent organic pollutants; Sampling artifacts
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 26. 4. 2017 22:58, Ing. Andrea Mikešková
Anotace
V originále
The effects of sampling artifacts are often not fully considered in the design of air monitoring with active air samplers. Semivolatile organic contaminants (SVOCs) are particularly vulnerable to a range, of sampling artifacts because of their wide range of gas-particle partitioning and degradation rates, and these can lead to erroneous measurements of air concentrations and a lack of comparability between sites with different environmental and sampling conditions. This study used specially adapted filter-sorbent sampling trains in three types of active air samplers to investigate breakthrough of SVOCs, and the possibility of other sampling artifacts. Breakthrough volumes were experimentally determined for a range of polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), organochlorine pesticides (OCPs) and polybrominated diphenyl ethers (PBDEs) in sampling volumes from 300 to 10,000 m(3), and sampling durations of 1-7 days. In parallel, breakthrough was estimated based on theoretical sorbent-vapor pressure relationships. The comparison of measured and theoretical determinations of breakthrough demonstrated good agreement between experimental and estimated breakthrough volumes, and showed that theoretical breakthrough estimates should be used when developing air monitoring protocols. Significant breakthrough in active air samplers occurred for compounds with vapor pressure >0.5 Pa at volumes <700 m(3). Sample volumes between 700 and 10,000 m(3) may lead to breakthrough for compounds with vapor pressures between 0.005 and 0.5 Pa. Breakthrough is largely driven by sample volume and compound volatility (therefore indirectly by temperature) and is independent of sampler type. The presence of significant breakthrough at "typical" sampling conditions is relevant for air monitoring networks, and may lead to under-reporting of more volatile SVOCs.
Návaznosti
EE2.3.30.0037, projekt VaV |
| ||
EHP-CZ02-OV-1-029-2015, interní kód MU |
| ||
LM2011028, projekt VaV |
| ||
LO1214, projekt VaV |
|