Measurement methods and impact factors for the key parameters of VOC/SVOC emissions from materials in indoor and vehicular environments: A review

Wang, Haimei; Xiong, Jianyin; Wei, Wenjuan

doi:10.1016/j.envint.2022.107451

Cited by 39 publications

(12 citation statements)

References 112 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although it is possible to account for variable surface transfer coefficients in eq , doing so necessitates an additional model parameter, which may not always be readily available. For example, one of the most comprehensive databases of diffusion coefficients, known to the authors, contains entries for about 120 different material VOC combinations . This can be compared with the Swedish database BASTA, which provides building products and information about their composition.…”

Section: Discussionmentioning

confidence: 99%

“…The effect of material properties can be seen in Figure 4, where the ventilation thresholds are plotted against K ma 2 D m with t c −0.5 = 0.12. Wang et al 41 presented a comprehensive summary of these key parameters for individual VOCs across a wide range of materials. Formaldehyde in particle boards, medium density fiberboard, and solid wood furniture are the most studied VOC-material combinations.…”

Section: ■ Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Theoretical Threshold for Estimating the Impact of Ventilation on Materials’ Emissions

Domhagen,

Langer,

Sasic Kalagasidis

2024

Environ. Sci. Technol.

View full text Add to dashboard Cite

In new buildings, nonoccupant VOC emissions are initially high but typically decrease within months. Increased ventilation is commonly used to improve indoor air quality, assuming it speeds up VOC off-gassing from materials. However, previous research presents inconsistent results. This review introduces a simplified analytical model to understand the ventilation–emission relationship. By combining factors such as diffusivity, emitting area, and time, the model suggests the existence of a theoretical ventilation threshold beyond which enhanced ventilation has no further influence on emission rates. A threshold of approximately 0.13 L s–1 m–2 emitting area has been found for various VOCs documented in the existing literature, with which the conflicting results are explained. It is also shown that the threshold remains notably consistent across different boundary conditions and model resolutions, indicating its suitability for real-world applications.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Theoretical Threshold for Estimating the Impact of Ventilation on Materials’ Emissions

Domhagen,

Langer,

Sasic Kalagasidis

2024

Environ. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…Additional non-tailpipe sources, e.g., ancillary solvent products 27 and other vehicle-related materials sublimation, 28 have also been found to be the sources of SOA precursors. However, few studies have constrained these non-tailpipe emissions or the resulting SOA production under real-world driving condition.…”

Section: T H Imentioning

confidence: 99%

Secondary Organic Aerosol Formation Potential from Vehicular Non-tailpipe Emissions under Real-World Driving Conditions

Zhang,

Peng,

Song

et al. 2024

Environ. Sci. Technol.

View full text Add to dashboard Cite

Traffic emissions are a dominant source of secondary organic aerosol (SOA) in urban environments. Though tailpipe exhaust has drawn extensive attention, the impact of non-tailpipe emissions on atmospheric SOA has not been well studied. Here, a closure study was performed combining urban tunnel experiments and dynamometer tests using an oxidation flow reactor in situ photo-oxidation. Results show a significant gap between field and laboratory research; the average SOA formation potential from real-world fleet is 639 ± 156 mg kg fuel −1 , higher than the reconstructed result (188 mg kg fuel −1 ) based on dynamometer tests coupled with fleet composition inside the tunnel. Considering the minimal variation of SOA/CO in emission standards, we also reconstruct CO and find the critical role of high-emitting events in the real-world SOA burden. Different profiles of organic gases are detected inside the tunnel than tailpipe exhaust, such as more abundant C 6 −C 9 aromatics, C 11 −C 16 species, and benzothiazoles, denoting contributions from non-tailpipe emissions to SOA formation. Using these surrogate chemical compounds, we roughly estimate that high-emitting, evaporative emission, and asphalt-related and tire sublimation share 14, 20, and 10% of the SOA budget, respectively, partially explaining the gap between field and laboratory research. These experimental results highlight the importance of non-tailpipe emissions to atmospheric SOA.

show abstract

“…There are many sources of gaseous and particulate air pollutants indoors, including building materials and furnishings (wood, plastics, oorings, etc. [1][2][3] ), personal care products, 4 household appliances (stoves, photocopiers, res, etc. 3,5 ) and occupant activities such as cooking and cleaning.…”

Section: Introductionmentioning

confidence: 99%

Does green mean clean? Volatile organic emissions from regular versus green cleaning products

Harding-Smith,

Shaw,

Shaw

et al. 2024

Environ. Sci.: Processes Impacts

View full text Add to dashboard Cite

show abstract

Measurement methods and impact factors for the key parameters of VOC/SVOC emissions from materials in indoor and vehicular environments: A review

Cited by 39 publications

References 112 publications

Theoretical Threshold for Estimating the Impact of Ventilation on Materials’ Emissions

Theoretical Threshold for Estimating the Impact of Ventilation on Materials’ Emissions

Secondary Organic Aerosol Formation Potential from Vehicular Non-tailpipe Emissions under Real-World Driving Conditions

Does green mean clean? Volatile organic emissions from regular versus green cleaning products

Contact Info

Product

Resources

About