Passive sampling in combination with thermal desorption and gas chromatography as a tool for self-assessment of chemical exposure

Sunesson, Anna-Lena; Liljelind, Ingrid; Sundgren, Margit; Pettersson-Strömbäck, Anita; Levin, Jan‐Olof

doi:10.1039/b203307k

Cited by 8 publications

(4 citation statements)

References 20 publications

(34 reference statements)

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“…After sampling, the collected pollutant is desorbed from the sampling media by thermal or chemical means and analyzed quantitatively. The average concentration of the pollutant in the atmosphere to which the sampler was exposed is calculated by dividing the mass of pollutant, measured analytically, by the product of the diffusion rate and sampling time …”

Section: Introductionmentioning

confidence: 99%

“…The average concentration of the pollutant in the atmosphere to which the sampler was exposed is calculated by dividing the mass of pollutant, measured analytically, by the product of the diffusion rate and sampling time. 1 The Ogawa NO 2 and NO X sampler have been validated using chemiluminescence measurements in ambient environments. 2,3 The Radiello sampler, developed over a decade ago for assessment of benzene exposure, 4 has been evaluated for collection of VOC using Carbograph 4 and other adsorbents.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of Passive Samplers for Assessment of Community Exposure to Toxic Air Contaminants and Related Pollutants

Mason

Fujita

Campbell

et al. 2011

Environ. Sci. Technol.

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The precision, accuracy, and sampling rates of Radiello and Ogawa passive samplers were evaluated in the laboratory using a flow-through chamber and under field conditions prior to their use in the 2007 Harbor Community Monitoring Study (HCMS), a saturation monitoring campaign in the communities adjacent to the Ports of Los Angeles and Long Beach. Passive methods included Radiello samplers for volatile organic compounds (benzene, toluene, ethylbenzene, xylenes, 1,3-butadiene), aldehydes (formaldehyde, acetaldehyde, acrolein) and hydrogen sulfide, and Ogawa samplers for nitrogen oxides and sulfur dioxide. Additional experiments were conducted to study the robustness of the passive sampling methods under variable ambient wind speed, sampling duration, and storage time before analysis. Our experimentally determined sampling rates were in agreement with the rates published by Radiello and Ogawa with the following exceptions: we observed a diffusion rate of 22.4 ± 0.1 mL/min for benzene and 37.4 ± 1.5 mL/min for ethylbenzene compared to the Radiello published values of 27.8 and 25.7 mL/min, respectively. With few exceptions, the passive monitoring methods measured one-week average ambient concentrations of selected pollutants with sensitivity and precision comparable to conventional monitoring methods averaged over the same period. Radiello Carbograph 4 VOC sampler is not suitable for the collection of 1,3-butadiene due to backdiffusion. Results for the Radiello aldehyde sampler were inconclusive due to lack of reliable reference methods for all carbonyl compounds of interest.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Evaluation of Passive Samplers for Assessment of Community Exposure to Toxic Air Contaminants and Related Pollutants

Mason

Fujita

Campbell

et al. 2011

Environ. Sci. Technol.

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“…Quantitative self-assessment is a relatively recent development and is the term used to describe an exposure assessment method where the worker performs at least the sampling himself. Research groups that have applied quantitative self-assessment approaches are not numerous (Loomis et al, 1994;Saarinen et al, 1998;Rappaport et al, 1999;Tielemans et al, 1999;Liljelind et al, 2000Liljelind et al, , 2001Egeghy et al, 2002;Sunesson et al, 2002). Results so far have been promising and suggest that it is feasible for workers to conduct exposure measurements themselves.…”

Section: Discussionmentioning

confidence: 99%

Quantitative Self-Assessment of Exposure to Solvents Among Shoe Repair Men

2006

The Annals of Occupational Hygiene

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Self-assessment of exposure (SAE) refers to any exposure assessment methodology wherein the worker takes an active role in establishing his or her exposure status. The objective of this study was to investigate the reliability and feasibility of SAE approaches among shoe repair workers collecting exposure data over a 3 month period. This study was conducted in 26 Dutch shoe repair shops, which were divided into two groups of SAE with different levels of expert supervision. Participants in group 1 received only written instructions on sampling methods, whereas workers in group 2 were also instructed face-to-face by an occupational hygienist. Participants were asked to do 20 (group 1) or 14 (group 2) measurements by themselves. In group 2, an additional 6 measurements in each company were conducted under supervision of an expert. Organic solvents were measured by passive samplers (3M badges) and a sum score for volatile organic compounds (VOC score) was used in data analysis. Mixed effect models and principal component analysis were used to compare concentration levels and exposure variability between group 1 and group 2. Finally, 473 out of the 520 distributed samplers (91%) were available for analysis. Measurements in group 1 were not evenly spread over the 3 month period, whereas dispersal of measurements was much better if experts were more closely involved (group 2). No significant differences in average VOC scores were found between group 1 and group 2. The exposure variability in group 1 appeared to be significantly larger than that in group 2. However, analysis within group 2 showed that no differences exist in geometric means and exposure variability between 'expert' and 'self-assessment' measurements. Thus, the study results are ambiguous with respect to the reliability of SAE, and more research is needed to corroborate and refine the present results. This new methodology can, if proven reliable, be seen as a cost-effective way of collecting exposure data.

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“…Diffusive samplers, also known as passive samplers, were first developed for monitoring air in the workplace and still are very used for this purpose, 1,2 but display a great potential for monitoring ambient air quality. [3][4][5][6] Continuous monitoring of VOC (volatile organic compounds) today is still only feasible for a few compounds, particularly BTEX.…”

Section: Introductionmentioning

confidence: 99%

Experimental determination of benzene uptake rate in Tenax TA diffusive samplers

Andrietta¹,

Tomaz²,

Tresmondi³

et al. 2010

Quím. Nova

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This paper proposes a methodology to predict benzene uptake rate in ambient air, using passive samplers with Tenax TA. Variations in the uptake rate were found to occur as a function of the sampling time; and were greater at the beginning of sampling. An empirical model was obtained and values for uptake rate agree with literature. Concentration prediction errors can be minimized by using sampling times of 4 to 14 days, thus avoiding the influence of excessive uptake rates in the initial days and the influence of back diffusion at the end of the sampling period

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Passive sampling in combination with thermal desorption and gas chromatography as a tool for self-assessment of chemical exposure

Cited by 8 publications

References 20 publications

Evaluation of Passive Samplers for Assessment of Community Exposure to Toxic Air Contaminants and Related Pollutants

Evaluation of Passive Samplers for Assessment of Community Exposure to Toxic Air Contaminants and Related Pollutants

Quantitative Self-Assessment of Exposure to Solvents Among Shoe Repair Men

Experimental determination of benzene uptake rate in Tenax TA diffusive samplers

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