Citation: Mei Li, Min Shao, Ling-Yu Li, Si-Hua Lu, Wen-Tai Chen, Chen Wang. Quantifying the ambient formaldehyde sources utilizing tracers[J]. Chinese Chemical Letters, ;2014, 25(11): 1489-1491. doi: 10.1016/j.cclet.2014.07.001 shu

Quantifying the ambient formaldehyde sources utilizing tracers

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State Joint Key Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China

Corresponding author: Mei Li, Min Shao,
Received Date: 18 March 2014
Available Online: 19 June 2014

Formaldehyde (HCHO) is one of the most important intermediate products of atmospheric photochemical reactions in the troposphere, therefore understanding of HCHO sources is essential for effective ozone control measures. The objective of this work is to distinguish between primary and secondary sources of HCHO. Based on about one month of online measurements in winter in Ziyang, Sichuan, the multi-linear regression analysis of ambient concentrations of HCHO and possible tracers (acetonitrile, propane and peroxyacetyl nitrate) was performed. The results show that during winter in Ziyang, biomass burning contributed an average of 53.2% to ambient HCHO levels, while secondary processes contributed about 30.1%, and vehicular sources accounted for 7.1%.
- Formaldehyde,
- Sources,
- Tracers,
- Multi-linear regression
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沈阳化工大学材料科学与工程学院沈阳 110142