Diffusive sampling of 25 volatile organic compounds in indoor air: Uptake rate determination and application in Flemish homes for the elderly

Walgraeve, Christophe; Demeestere, Kristof; Dewulf, Jo; Huffel, Katrijn Van; Langenhove, Herman Van

doi:10.1016/j.atmosenv.2011.07.007

Cited by 69 publications

(32 citation statements)

References 46 publications

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“…Diffusive sampling is an effective tool for environmental and personal exposure monitoring, as there are few limitations for deployment location. Applications have included a wide range of environmental conditions including indoor, workplace and ambient air environments, with pollutant concentrations ranging from trace to highly contaminated levels [15][16][17]. While advances of continuous analyzers have led to mobile monitoring for understanding some air quality problems, diffusive sampler surveying remains an effective approach for detailed understanding of spatial distributions with simultaneous measurements.…”

Section: Sampling Devicementioning

confidence: 99%

Diffusive sampling of air pollutants in US basins with oil and gas development

Field¹,

Ramírez²,

Quintanilla³

et al. 2016

WIT Transactions on Ecology and the Environment

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Emissions from the oil and gas sector are important for climate change, ozone production and human health. Oil and gas leakage rates reported in the United States (US), estimated by relating measured methane fluxes with natural gas production, vary from less than 1% (e.g. Upper Green River Basin, (UGRB) in Wyoming) to over 6% (Uintah Basin, Utah). We demonstrate the applicability of the Pocket Diffusive (POD) sampler for scoping assessments of levels hydrocarbons and volatile polycyclic aromatic hydrocarbons (PAH) in areas heavily influenced by existing O&G development. We assess three US basins (Upper Green River, Uintah, and North Platte River), each with different characteristics, most importantly meteorology and emissions, which influence measured air quality. We contrast ambient concentrations of hydrocarbons (C4-C 12 ) and volatile PAHs at these basins and show important differences between measured levels of pollutants, including benzene. Our POD sampling results support previous findings of relatively elevated levels of aromatics in the Pinedale Anticline (UGRB) and relatively high alkane concentrations in the Uintah Basin. Concentrations of alkenes and PAH shows that these compound classes are at relatively low levels, and as such are of less concern in the assessed basins.

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Section: Sampling Devicementioning

confidence: 99%

Diffusive sampling of air pollutants in US basins with oil and gas development

Field¹,

Ramírez²,

Quintanilla³

et al. 2016

WIT Transactions on Ecology and the Environment

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show abstract

“…The retaining gaze has a pore size of 80 mesh and the wire is 0.21 mm in diameter, giving an effective area of 46% of the full area by calculation. Previous studies [15,18] assumed full cross-sectional diffusion area without considering the effective area on the retaining gauze. This assumption is questionable; however, it does not impact the determination of UR eff , since UR eff is not determined directly from the tube geometry, rather, by experiments or modelling as presented later.…”

Section: Standard Atd Tubesmentioning

confidence: 99%

“…In short-term workplace sampling, the median 8h-UR eff is 0.47 mL/min (min-max: 0.25-0.68 mL/min), corresponding to 0.23 L (0.12-0.33 L) of sampling volumes. In long-term environmental sampling, the median 7d-UR eff is 0.32 mL/min (0.13-0.43 mL/min), resulting in a median sampling volume of 3.2 L (1.3-4.3 L) at 25 • C. 6 Values in bold are measured 8-h effective uptake rates from [36]; other values are calculated using Equations (2), (4) and (5); 7 Values in bold are measured 7-day effective uptake rates from [18]; other values are calculated using Equations (2) and (11).…”

Section: Compilation Of Ideal and Effective Ursmentioning

confidence: 99%

“…For long-term (7 days) environmental sampling, we used URs from Walgraeve et al's study [18]. This study determined 7d-UR eff values on standard Tenax TA ATD tubes for a total of 25 VOCs commonly found in indoor and outdoor air (Table A2).…”

Section: Modeling Long-term Effective Uptake Ratesmentioning

confidence: 99%

“…ATD tubes offer the greatest flexibility for users to select sorbents and determine tube configuration but at the same time, add complexity to the UR determination. Many studies have determined URs from the diffusion theory [12], in laboratory chambers [13][14][15][16] and by comparing active and passive sampling in the field [17,18]. Many factors influence URs, including sorbent selection, tube configuration, exposure duration and environmental conditions.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Diffusive Uptake Rates of Volatile Organic Compounds on Standard ATD Tubes for Environmental and Workplace Applications

Jia

2017

Environments

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Passive sampling for airborne volatile organic compounds (VOCs) has gained popularity; however, diffusive uptake rates (URs) have been experimentally determined for only a small subset of VOCs. This study aims to develop empirical models that can interpolate effective URs (UR eff ) for a wide range of VOCs. The modelling was based on the standard automated thermal desorption (ATD) tubes packed with Tenax TA and targeted the sampling efficiency (α), defined as the ratio between the ideal UR (UR ideal ) and UR eff . Available experimentally determined URs were compiled from literature. Method detection limits were determined on a thermal desorption-gas chromatography/mass spectrometry (TD-GC/MS) system. The 8-h UR eff can be modeled with retention volumes or boiling points (BPs) and the biases were within ±20%. The α for 7-day UR eff can be estimated by the model: α = 0.3626 Ln(BP) − 1.2324. The 8-h and 7-day UR eff values were then compiled for 75 VOCs commonly encountered in the environmental and occupational settings. The TD analytical method showed high precision, linearity and sensitivity, suitable for measuring indoor and outdoor VOCs. The approach and data presented here are anticipated to ease passive monitoring of VOCs for the general users.

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Volatile Organic Compounds in Indoor Environments

Ayoko

Wang

2014

The Handbook of Environmental Chemistry

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Diffusive sampling of 25 volatile organic compounds in indoor air: Uptake rate determination and application in Flemish homes for the elderly

Cited by 69 publications

References 46 publications

Diffusive sampling of air pollutants in US basins with oil and gas development

Diffusive sampling of air pollutants in US basins with oil and gas development

Diffusive Uptake Rates of Volatile Organic Compounds on Standard ATD Tubes for Environmental and Workplace Applications

Volatile Organic Compounds in Indoor Environments

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