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@article{1408407,
author = {Melymuk, Lisa Emily and BohlinandNizzetto, Pernilla and Prokeš, Roman and Kukučka, Petr and Přibylová, Petra and Vojta, Šimon and Kohoutek, Jiří and Lammel, Gerhard and Klánová, Jana},
article_location = {OXFORD},
article_number = {October},
doi = {http://dx.doi.org/10.1016/j.atmosenv.2017.08.038},
keywords = {Active air sampling; Passive air sampling; Degradation; SVOCs; Sampling artifacts},
language = {eng},
issn = {1352-2310},
journal = {Atmospheric Environment},
title = {Uncertainties in monitoring of SVOCs in air caused by within-sampler degradation during active and passive air sampling},
url = {https://www.sciencedirect.com/science/article/pii/S1352231017305514?via%3Dihub},
volume = {167},
year = {2017}
}
TY - JOUR
ID - 1408407
AU - Melymuk, Lisa Emily - Bohlin-Nizzetto, Pernilla - Prokeš, Roman - Kukučka, Petr - Přibylová, Petra - Vojta, Šimon - Kohoutek, Jiří - Lammel, Gerhard - Klánová, Jana
PY - 2017
TI - Uncertainties in monitoring of SVOCs in air caused by within-sampler degradation during active and passive air sampling
JF - Atmospheric Environment
VL - 167
IS - October
SP - 553-565
EP - 553-565
PB - PERGAMON-ELSEVIER SCIENCE
SN - 13522310
KW - Active air sampling
KW - Passive air sampling
KW - Degradation
KW - SVOCs
KW - Sampling artifacts
UR - https://www.sciencedirect.com/science/article/pii/S1352231017305514?via%3Dihub
L2 - https://www.sciencedirect.com/science/article/pii/S1352231017305514?via%3Dihub
N2 - Degradation of semivolatile organic compounds (SVOCs) occurs naturally in ambient air due to reactions with reactive trace gases (e.g., ozone, NO.). During air sampling there is also the possibility for degradation of SVOCs within the air sampler, leading to underestimates of ambient air concentrations. We investigated the possibility of this sampling artifact in commonly used active and passive air samplers for seven classes of SVOCs, including persistent organic pollutants (POPs) typically covered by air monitoring programs, as well as SVOCs of emerging concern. Two active air samplers were used, one equipped with an ozone denuder and one without, to compare relative differences in mass of collected compounds. Two sets of passive samplers were also deployed to determine the influence of degradation during longer deployment times in passive sampling. In active air samplers, comparison of the two sampling configurations suggested degradation of particle-bound polycyclic aromatic hydrocarbons (PAHs), with concentrations up to 2x higher in the denuder-equipped sampler, while halogenated POPs did not have clear evidence of degradation. In contrast, more polar, reactive compounds (e.g., organophosphate esters and current use pesticides) had evidence of losses in the sampler with denuder. This may be caused by the denuder itself, suggesting sampling bias for these compounds can be created when typical air sampling apparatuses are adapted to limit degradation. Passive air samplers recorded up to 4x higher concentrations when deployed for shorter consecutive sampling periods, suggesting that within-sampler degradation may also be relevant in passive air monitoring programs.
ER -
MELYMUK, Lisa Emily, Pernilla BOHLIN-NIZZETTO, Roman PROKEŠ, Petr KUKUČKA, Petra PŘIBYLOVÁ, Šimon VOJTA, Jiří KOHOUTEK, Gerhard LAMMEL and Jana KLÁNOVÁ. Uncertainties in monitoring of SVOCs in air caused by within-sampler degradation during active and passive air sampling. \textit{Atmospheric Environment}. OXFORD: PERGAMON-ELSEVIER SCIENCE, 2017, vol.~167, October, p.~553-565. ISSN~1352-2310. Available from: https://dx.doi.org/10.1016/j.atmosenv.2017.08.038.
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