Species and characteristics of volatile organic compounds emitted from an auto-repair painting workshop

Volatile organic compounds (VOCs) are secondary pollutant precursors having adverse impacts on the environment and human health. Although VOC emissions, their sources, and impacts have been investigated, the focus has been on large-scale industrial sources or indoor environments; studies on relative...

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Bibliographic Details
Published in:Scientific reports 2021-08, Vol.11 (1), p.16586-16586, Article 16586
Main Authors: Song, M. Y., Chun, H.
Format: Article
Language:English
Subjects:
639/638
704/172
Acetic acid
Adsorption
Butyl acetate
Control systems
Emissions
Environmental impact
Ethylbenzene
Humanities and Social Sciences
Indoor environments
Inlets
multidisciplinary
Organic compounds
Outlets
Paints
Pollutants
Science
Science (multidisciplinary)
Toluene
VOCs
Volatile organic compounds
Workshops
Xylene
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Summary:Volatile organic compounds (VOCs) are secondary pollutant precursors having adverse impacts on the environment and human health. Although VOC emissions, their sources, and impacts have been investigated, the focus has been on large-scale industrial sources or indoor environments; studies on relatively small-scale enterprises (e.g., auto-repair workshops) are lacking. Here, we performed field VOC measurements for an auto-repair painting facility in Korea and analyzed the characteristics of VOCs emitted from the main painting workshop (top coat). The total VOC concentration was 5069–8058 ppb, and 24–35 species were detected. The VOCs were mainly identified as butyl acetate, toluene, ethylbenzene, and xylene compounds. VOC characteristics differed depending on the paint type. Butyl acetate had the highest concentration in both water- and oil-based paints; however, its concentration and proportion were higher in the former (3256 ppb, 65.5%) than in the latter (2449 ppb, 31.1%). Comparing VOC concentration before and after passing through adsorption systems, concentrations of most VOCs were lower at the outlets than the inlets of the adsorption systems, but were found to be high at the outlets in some workshops. These results provide a theoretical basis for developing effective VOC control systems and managing VOC emissions from auto-repair painting workshops.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-021-96163-4