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Detailed Investigation of the Contribution of Gas-Phase Air Contaminants to Exposure Risk during Indoor Activities
Environmental Science & Technology ( IF 11.4 ) Pub Date : 2022-08-11 , DOI: 10.1021/acs.est.2c01381
Anna L Hodshire 1 , Ellison Carter 2 , James M Mattila 1 , Vito Ilacqua 3 , Jordan Zambrana 3 , Jonathan P D Abbatt 4 , Andrew Abeleira 1 , Caleb Arata 5 , Peter F DeCarlo 6 , Allen H Goldstein 5 , Lea Hildebrandt Ruiz 7 , Marina E Vance 8 , Chen Wang 4 , Delphine K Farmer 1
Affiliation  

Analytical capabilities in atmospheric chemistry provide new opportunities to investigate indoor air. HOMEChem was a chemically comprehensive indoor field campaign designed to investigate how common activities, such as cooking and cleaning, impacted indoor air in a test home. We combined gas-phase chemical data of all compounds, excluding those with concentrations <1 ppt, with established databases of health effect thresholds to evaluate potential risks associated with gas-phase air contaminants and indoor activities. The chemical composition of indoor air is distinct from outdoor air, with gaseous compounds present at higher levels and greater diversity─and thus greater predicted hazard quotients─indoors than outdoors. Common household activities like cooking and cleaning induce rapid changes in indoor air composition, raising levels of multiple compounds with high risk quotients. The HOMEChem data highlight how strongly human activities influence the air we breathe in the built environment, increasing the health risk associated with exposure to air contaminants.

中文翻译:

详细调查气相空气污染物对室内活动暴露风险的影响

大气化学的分析能力为研究室内空气提供了新的机会。HOMEChem 是一项化学综合性室内实地活动,旨在调查烹饪和清洁等常见活动如何影响测试家庭的室内空气。我们将所有化合物的气相化学数据(不包括浓度 <1 ppt 的化合物)与已建立的健康影响阈值数据库相结合,以评估与气相空气污染物和室内活动相关的潜在风险。室内空气的化学成分与室外空气不同,气态化合物的含量更高,多样性也更高——因此预测的危险商也更高——室内比室外高。烹饪和清洁等常见的家庭活动会引起室内空气成分的快速变化,提高具有高风险商的多种化合物的水平。HOMEChem 数据强调了人类活动对我们在建筑环境中呼吸的空气的影响有多大,从而增加了与暴露于空气污染物相关的健康风险。
更新日期:2022-08-11
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