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Indoor/outdoor relationships of PM2.5-associated toxic metals/metalloids at a rural residence in North China: Sources and probabilistic health risks by Jianwei Liu; Hui Chen; Shuo Qiao; Yali Zhang is a Environmental Science article available to read on EtoBox.

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Levels of toxic metals/metalloids (TMs) in indoor air are of vital importance to the health of residents due to the high toxicity of TMs and the fact that the majority of the time is spent indoors. Currently, the relationship between indoor and outdoor TMs at rural residences remains unclear. In this study, 24-h samples of indoor and outdoor fine particulate matter (PM2.5) were simultaneously collected at a rural residence during the heating season in North China. The results revealed that the concentrations of PM2.5 and certain TMs indoors were higher than those outdoors (p 1 and TCR>10−4). In particular, As dominated both the noncancer and cancer risks (nearly 40%). Therefore, more efforts are needed to reduce the As concentration and coal combustion source in rural areas.

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Author

Jianwei Liu; Hui Chen; Shuo Qiao; Yali Zhang

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Environmental Science (Physical Sciences)