Levels, sources, and health risks of carbonyls in residential indoor air in Hangzhou, China.
Concentrations of formaldehyde, acetaldehyde, acetone, propionaldehyde, i-pentanal, and butyraldehyde in residential indoor air in Hangzhou were determined. The mean concentration of the total carbonyl compounds in summer was 222.6 microg/m(3), higher than that in winter (68.5 microg/m(3)). The concentration of a specific carbonyl in indoor air was higher than the outdoor air measurement, indicating the release of carbonyls from the indoor sources. Formaldehyde and acetone were the most abundant carbonyls detected in summer and winter, respectively. Multiple regression analysis indicated that carbonyl concentrations in residential indoor air depended on the age of decoration and furniture, as well as their concentrations in outdoor air. In addition, a primary estimation showed that the health risks of carbonyls in summer were higher than those in winter.
Weng
Mili
M
Department of Environmental Science, Zhejiang University, Hangzhou, 310028, Zhejiang, China.
Zhu
Lizhong
L
Yang
Kun
K
Chen
Shuguang
S
D000393:Air Pollutants / Q000032:analysis* / Q000633:toxicity; D016902:Air Pollution, Indoor; D000447:Aldehydes / Q000032:analysis* / Q000633:toxicity; D002681:China; D018570:Risk Assessment
D000393:Air Pollutants; D000447:Aldehydes