PMID- 25329599 OWN - NLM STAT- MEDLINE DCOM- 20150730 LR - 20181202 IS - 1520-5851 (Electronic) IS - 0013-936X (Linking) VI - 48 IP - 24 DP - 2014 Dec 16 TI - Current challenges in air sampling of semivolatile organic contaminants: sampling artifacts and their influence on data comparability. PG - 14077-91 LID - 10.1021/es502164r [doi] AB - With current science and policy needs, more attention is being given to expanding and improving air sampling of semivolatile organic contaminants (SVOCs). However, a wide range of techniques and configurations are currently used (active and passive samplers, different deployment times, different sorbents, etc.) and as the SVOC community looks to assess air measurements on a global scale, questions of comparability arise. We review current air sampling techniques, with a focus on sampling artifacts that can lead to uncertainties or biases in reported concentrations, in particular breakthrough, degradation, meteorological influences, and assumptions regarding passive sampling. From this assessment, we estimate the bias introduced for SVOC concentrations from all factors. Due to the effects of breakthrough, degradation, particle fractions and sampler uptake periods, some current passive and active sampler configurations may underestimate certain SVOCs by 30-95%. We then recommend future study design, appropriateness of sampler types for different study goals, and finally, how the SVOC community should move forward in both research and monitoring to best achieve comparability and consistency in air measurements. FAU - Melymuk, Lisa AU - Melymuk L AD - Research Centre for Toxic Compounds in the Environment (RECETOX), Faculty of Science, Masaryk University , Kamenice 5/753, Pavilon A29, Brno 62500, Czech Republic. FAU - Bohlin, Pernilla AU - Bohlin P FAU - Sanka, Ondrej AU - Sanka O FAU - Pozo, Karla AU - Pozo K FAU - Klanova, Jana AU - Klanova J LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Review DEP - 20141203 PL - United States TA - Environ Sci Technol JT - Environmental science & technology JID - 0213155 RN - 0 (Air Pollutants) RN - 0 (Volatile Organic Compounds) SB - IM MH - Air Pollutants/*analysis MH - Artifacts MH - Environmental Monitoring/*methods MH - Reproducibility of Results MH - Volatile Organic Compounds/*analysis EDAT- 2014/10/21 06:00 MHDA- 2015/08/01 06:00 CRDT- 2014/10/21 06:00 PHST- 2014/10/21 06:00 [entrez] PHST- 2014/10/21 06:00 [pubmed] PHST- 2015/08/01 06:00 [medline] AID - 10.1021/es502164r [doi] PST - ppublish SO - Environ Sci Technol. 2014 Dec 16;48(24):14077-91. doi: 10.1021/es502164r. Epub 2014 Dec 3.