Collection and analysis of trace organic vapour pollutants in ambient atmospheres

Brown, R. H.; Purnell, C. J.

doi:10.1016/s0021-9673(00)89698-3

Cited by 290 publications

(95 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Breakthrough volume has been defined as the volume at which a significant amount of a constant atmosphere of an adsorbate drawn through a sorbent tube appears in the tube effluent [7 ]. For this study, significant breakthrough was defined as a loss of more than one percent.…”

Section: Validation Of the Methodsmentioning

confidence: 99%

Application of a Multisorbent Sampling Technique for Investigations of Volatile Organic Compounds in Buildings

Hodgson

Girman

1989

Design and Protocol for Monitoring Indoor Air Quality

View full text Add to dashboard Cite

An analytical method for volatile organic compounds (VOC) which employs a multisorbent sampler containing, in series, Tenax-TA, Ambersorb XE-340, and activated charcoal is described. The method was evaluated in the laboratory and was used to measure concentrations of VOC at a school and an office building. The sampler quantitatively collects compounds spanning a broad range of boiling points, including highly volatile solvents. The overall precision of the method is better than 10% and often better than 5%. The composition and concentrations of VOC in the two, approximately five-month old, nonresidential buildings were similar and also similar to the composition and concentrations in typical residential indoor air. Concentrations of VOC were measured at two ventilation rates in both nonresidential buildings, and the data were applied to a single-equation, mass-balance model. Apparent specific source strengths for VOC approximately doubled with a six-fold increase in ventilation rate.

show abstract

Section: Validation Of the Methodsmentioning

confidence: 99%

Application of a Multisorbent Sampling Technique for Investigations of Volatile Organic Compounds in Buildings

Hodgson

Girman

1989

Design and Protocol for Monitoring Indoor Air Quality

View full text Add to dashboard Cite

show abstract

“…Models only apply to nonpolar chemicals and a few polar chemical groups, including aromatics, branched alkanes and cycloalkanes, chlorinated compounds, acetates, acrylates and ketones. Models do not apply to alcohols, acids, anhydrides, higher amines, or chlorobenzene as their retention volumes on the ATD tube and boiling points did not show simple linear relationship [35]. The measured and modeled UR eff values are valid for 8-h and 7-day sampling in occupational and environmental settings, respectively.…”

Section: Discussionmentioning

confidence: 94%

“…If it is unavailable, Vg can be experimentally determined following an established protocol [34]. Brown and Purnell's fundamental work shows that Log 10 Vg and boiling point (BP, in • C) are highly correlated for most VOCs [35]. We then fitted Log 10 Vg against BP using the Vg data in the ASTM protocol.…”

Section: Diffusion Coefficientsmentioning

confidence: 99%

“…The low UR eff of α-pinene might be caused by decomposition on Tenax during sampling [42] and storage [43]. We also excluded hexanal as the relationship between log 10 Vg and BP was not established for aldehydes due to lack of data [35]. We conducted regression analyses in Microsoft Excel and SAS (Version 9.4, SAS Institute Inc., Cary, NC, USA).…”

Section: Modeling Long-term Effective Uptake Ratesmentioning

confidence: 99%

See 1 more Smart Citation

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

Jia

2017

Environments

View full text Add to dashboard Cite

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.

show abstract

“…Sample volumes of 1000 mL were collected during the early stage of the emission test to avoid sampling breakthrough 11 and then increased to a maximum of 1500 mL as emission rate decreased at the outlet of the chamber and VOCs were adsorbed using adsorption tubes (Tenax-GR, 80/100 mesh). Immediately after sampling, the tubes were tightly sealed and analyzed within a few hours.…”

Section: Methodsmentioning

confidence: 99%

Evaluation of Total Volatile Organic Compound Emissions from Adhesives Based on Chamber Tests

Guo

Murray

Wilkinson

2000

Journal of the Air & Waste Management Association

View full text Add to dashboard Cite

In 1997, Homeswest in western Australia and Murdoch University developed a project to construct low-allergen houses (LAHs) in a newly developed suburb. Before the construction of LAHs, all potential volatile organic compound (VOC) emission materials used in LAHs are required to be measured to ensure that they are low total VOC (TVOC) emission materials. This program was developed based on this purpose.In recent times, the number of complaints about indoor air pollution caused by VOCs has increased. A number of surveys of indoor VOCs have indicated that many indoor materials contribute to indoor air pollution. Although some studies have been conducted on the characteristics of VOC emissions from adhesives, most of them were focused on IMPLICATIONS This paper evaluates the emissions of TVOCs from adhesives based on chamber tests. The conclusions obtained in this paper can be used to (1) classify adhesive products according to their emission potential; (2) expand an emissions inventory that can be used to predict indoor air quality; and (3) evaluate the contribution of the emissions of a given product to the overall indoor concentrations of VOCs. Therefore, the emission data obtained in this kind of research are important for estimating exposure to VOCs emitted in the indoor environment and especially for the design of methods to reduce exposure through selecting appropriate building and furnishing materials and household products.VOC emissions from floor adhesives. Few measurements of VOC emissions from adhesives used for wood, fabrics, and leather are available. Furthermore, most research on VOC emissions from adhesives has been done in countries with cool climates, where ventilation rates in the indoor environment are lower than those in Mediterranean climates, due to energy conservation. VOCs emitted from adhesives have not been sufficiently researched to prepare an emission inventory to predict indoor air quality and to determine both exposure levels for the Australian population and the most appropriate strategies to reduce exposure.An environmental test chamber with controlled temperature, relative humidity, and airflow rate was used to evaluate emissions of TVOCs from three adhesives used frequently in Australia. The quantity of TVOC emissions was measured by a gas chromatography/flame ionization detector. The primary VOCs emitted from each adhesive were detected by gas chromatography/mass spectrometry.The temporal change of TVOC concentrations emitted from each adhesive was tested. A double-exponential equation was then developed to evaluate the characteristics of TVOC emissions from these three adhesives. With this double-exponential model, the physical processes of TVOC emissions can be explained, and a variety of emission parameters can be calculated. These emission parameters could be used to estimate real indoor TVOC concentrations in Mediterranean climates.

show abstract

Collection and analysis of trace organic vapour pollutants in ambient atmospheres

Cited by 290 publications

References 28 publications

Application of a Multisorbent Sampling Technique for Investigations of Volatile Organic Compounds in Buildings

Application of a Multisorbent Sampling Technique for Investigations of Volatile Organic Compounds in Buildings

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

Evaluation of Total Volatile Organic Compound Emissions from Adhesives Based on Chamber Tests

Contact Info

Product

Resources

About