TY - JOUR
T1 - Passive sampling for volatile organic compounds in indoor air-controlled laboratory comparison of four sampler types
AU - McAlary, Todd
AU - Groenevelt, Hester
AU - Disher, Stephen
AU - Arnold, Jason
AU - Seethapathy, Suresh
AU - Sacco, Paolo
AU - Crump, Derrick
AU - Schumacher, Brian
AU - Hayes, Heidi
AU - Johnson, Paul
AU - Górecki, Tadeusz
N1 - Publisher Copyright:
© The Royal Society of Chemistry 2015.
PY - 2015/5/1
Y1 - 2015/5/1
N2 - This article describes laboratory testing of four passive diffusive samplers for assessing indoor air concentrations of volatile organic compounds (VOCs), including SKC Ultra II, Radiello®, Waterloo Membrane Sampler (WMS) and Automated Thermal Desorption (ATD) tubes with two different sorbents (Tenax TA and Carbopack B). The testing included 10 VOCs (including chlorinated ethenes, ethanes, and methanes, aromatic and aliphatic hydrocarbons), spanning a range of properties and including some compounds expected to pose challenges (naphthalene, methyl ethyl ketone). Tests were conducted at different temperatures (17 to 30°C), relative humidities (30 to 90% RH), face velocities (0.014 to 0.41 m s-1), concentrations (1 to 100 parts per billion by volume [ppbv]) and sampling durations (1 to 7 days). The results show that all of the passive samplers provided data that met the success criteria (relative percent difference [RPD] ≤ 45% of active sample concentrations and coefficient of variation [COV] ≤ 30%) in the majority of cases, but some compounds were problematic for some samplers. The passive sampler uptake rates depend to varying degrees on the sampler, sorbent, target compounds and environmental conditions, so field calibration is advantageous for the highest levels of data quality.
AB - This article describes laboratory testing of four passive diffusive samplers for assessing indoor air concentrations of volatile organic compounds (VOCs), including SKC Ultra II, Radiello®, Waterloo Membrane Sampler (WMS) and Automated Thermal Desorption (ATD) tubes with two different sorbents (Tenax TA and Carbopack B). The testing included 10 VOCs (including chlorinated ethenes, ethanes, and methanes, aromatic and aliphatic hydrocarbons), spanning a range of properties and including some compounds expected to pose challenges (naphthalene, methyl ethyl ketone). Tests were conducted at different temperatures (17 to 30°C), relative humidities (30 to 90% RH), face velocities (0.014 to 0.41 m s-1), concentrations (1 to 100 parts per billion by volume [ppbv]) and sampling durations (1 to 7 days). The results show that all of the passive samplers provided data that met the success criteria (relative percent difference [RPD] ≤ 45% of active sample concentrations and coefficient of variation [COV] ≤ 30%) in the majority of cases, but some compounds were problematic for some samplers. The passive sampler uptake rates depend to varying degrees on the sampler, sorbent, target compounds and environmental conditions, so field calibration is advantageous for the highest levels of data quality.
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U2 - 10.1039/c4em00560k
DO - 10.1039/c4em00560k
M3 - Article
C2 - 25861049
AN - SCOPUS:84929300902
SN - 2050-7887
VL - 17
SP - 896
EP - 905
JO - Journal of Environmental Monitoring
JF - Journal of Environmental Monitoring
IS - 5
ER -