Journal cover Journal topic
Atmospheric Chemistry and Physics An interactive open-access journal of the European Geosciences Union
https://doi.org/10.5194/acp-2018-36
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Research article
07 Mar 2018
Review status
This discussion paper is a preprint. A revision of the manuscript is under review for the journal Atmospheric Chemistry and Physics (ACP).
VOCs emission profiles from rural cooking and heating in Guanzhong Plain, China and its potential effect on regional O3 and SOA formation
Jian Sun1,2, Zhenxing Shen1,2, Yu Huang2, Junji Cao2, Steven Sai Hang Ho2,3, Xinyi Niu2, Taobo Wang1, Qian Zhang1, Yali Lei1, Hongmei Xu1, and Hongxia Liu1,2 1Department of Environmental Sciences and Engineering, Xi’an Jiaotong University, Xi’an, 710049, China
2Key Lab of Aerosol Chemistry & Physics, SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an, 710049, China
3Division of Atmospheric Sciences, Desert Research Institute, Reno, NV 89512, United States
Abstract. Solid fuels (i.e., biomass fuel and coal) burning for cooking and heating emit large amounts of pollutants into atmosphere including particulate matter (PM) and volatile organic compounds (VOCs). In this study, VOCs were directly collected in chimneys of residential cooking and heating stoves in Guanzhong Plain using adsorbent tube approach followed by thermal desorption-gas chromatography/mass spectrometry (TD-GC/MS) analysis. Emission factors (EFs) of targeted VOCs varied from 47.2 ± 19.4 to 3121.3 ± 1592.4 mg kg−1 which had a descending order of biomass straw > woody fuel >> coal fuels. A remarkable finding is that semi-gasifier could not suppress the VOCs emission even though a high efficiency in reduction of PM was demonstrated. In addition, high values of coefficients of divergence (CD) (most > 0.5) support that there were large variations on the VOC profiles with different fuels and stoves. Ozone formation potential (OFP) of VOCs from solid fuel burning ranged from 50.3 ± 19.6 to 5914.8 ± 1340.5 mg kg−1, contributing ~ 20 % of ozone formation in Guanzhong atmosphere. The values were much larger than the contribution from PM of 6.7 %. However, much lower secondary organic aerosol formation potentials (SOAP) (0.5 ± 0.2–45.6 ± 3.0 mg kg−1) of VOCs emitted from solid fuel burning were estimated. The values were two orders of magnitude lower than OFP and only accounted for 0.23 % of the SOA in Guanzhong in 2013. The results of this study demonstrated that the VOCs emission from solid fuel burning had a strong impact to the ozone pollution in Guanzhong Plain.
Citation: Sun, J., Shen, Z., Huang, Y., Cao, J., Ho, S. S. H., Niu, X., Wang, T., Zhang, Q., Lei, Y., Xu, H., and Liu, H.: VOCs emission profiles from rural cooking and heating in Guanzhong Plain, China and its potential effect on regional O3 and SOA formation, Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2018-36, in review, 2018.
Jian Sun et al.
Jian Sun et al.

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