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Photochemical aging process on PM2.5 bound PAHs emission from solid fuel combustion in traditional and improved stoves
Zhang, Yue1,2; Sun, Jian1; Zou, Haijiang1; Zhang, Bin1; Yang, Duoxing5; Wang, Qiyuan2; Li, Jianjun2; Qu, Linli3; Ho, Steven Sai Hang3,4; Cao, Junji2; Shen, Zhenxing1,2
Corresponding AuthorSun, Jian(sunjian0306@mail.xjtu.edu.cn) ; Shen, Zhenxing(zxshen@mail.xjtu.edu.cn)
2021-12-01
Source PublicationATMOSPHERIC RESEARCH
ISSN0169-8095
Volume263Pages:11
AbstractSolid fuels are widely used as energy sources in the developing countries across the world. In this study, emissions of primary and secondary (i.e., photochemically aged) parent polycyclic aromatic hydrocarbons (p-PAHs) and their derivate from a variety of solid fuel burning were determined through a potential aerosol mass-oxidation flow reactor (PAM-OFR). The improved technology stoves showed reductions of 61.2-66.8% to the primary and secondary EFs of the total quantified PAHs (tPAHs) in comparison to the traditional stoves. In addition, the primary and secondary EFs of the tPAHs for the anthracite coal and maize straw charcoal were 80.9-88.7% and 19.4-51.6%, respectively, lower than those of the raw bituminous coal and maize straw briquette. Results demonstrated that the total p-PAHs and alkylated PAHs decreased for similar to 20% and similar to 50% after the 2- and 7- equivalent aged days, respectively, whereas the total oxygenated- and nitro-PAHs (i.e., o-PAHs and n-PAHs) had increases of similar to 30% and similar to 80%, respectively. Significant formations of carbonyl functional group in the aged samples were confirmed by the Fourier transform infrared spectroscopy, well consistent to the increases of EFs of the oxygenated species (e.g., o-PAHs). Unique diagnostic ratios for the o-PAHs and n-PAHs including 3 N-FLA/(3 N-FLA 1 N-PYR) (> 0.2 for coal, < 0.2 for biomass) and 1,3DN-PYR/(1,3DN-PYR + 1,6DN-PYR) (>0.5 for coal; <0.5 for biomass) were discovered and firstly reported to differentiate the emissions from the solid fuels. Even though the aged total emission of benzo[a]pyrene equivalent factors decreased by 26.0-34.0%, the secondary atmospheric formations of more toxic derivatives of o-PAHs and n-PAHs are given to be a high concern. The findings of this study could assist in refining the speciated emission inventories and in evaluating the chronic and acute health risks. The results could also evidence that the advanced heating technology is an effective measure in the emission control of toxic organic substances.
KeywordPAM-OFR PAHs Emission factors Advanced heating technology Solid fuels Toxicity
DOI10.1016/j.atmosres.2021.105807
WOS KeywordPOLYCYCLIC AROMATIC-HYDROCARBONS ; PORT THERMAL-DESORPTION ; CHROMATOGRAPHY/MASS SPECTROMETRY METHOD ; RESIDENTIAL WOOD COMBUSTION ; ORGANIC AEROSOL FORMATION ; TIME-RESOLVED ANALYSIS ; GAS-PHASE REACTIONS ; COAL COMBUSTION ; PARTICULATE MATTER ; PARTICLE EMISSIONS
Indexed BySCI ; SCI
Language英语
Funding ProjectNational Key R&D Program of China[2017YFC0212205] ; Science and Technology Plan Project of Xi'an city[2017136SF/WM030] ; Natural Science Foundation of China[21661132005] ; SKLLQG, the Chinese Academy of Sciences[SKLLQG1919]
WOS Research AreaMeteorology & Atmospheric Sciences
Funding OrganizationNational Key R&D Program of China ; Science and Technology Plan Project of Xi'an city ; Natural Science Foundation of China ; SKLLQG, the Chinese Academy of Sciences
WOS SubjectMeteorology & Atmospheric Sciences
WOS IDWOS:000702768200001
PublisherELSEVIER SCIENCE INC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/17086
Collection粉尘与环境研究室
Corresponding AuthorSun, Jian; Shen, Zhenxing
Affiliation1.Xi An Jiao Tong Univ, Dept Environm Sci & Engn, Xian 710049, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710049, Peoples R China
3.Hong Kong Premium Serv & Res Lab, Hong Kong, Peoples R China
4.Desert Res Inst, Div Atmospher Sci, Reno, NV 89512 USA
5.Natl Inst Nat Hazards, Minist Emergency Management China, Beijing 100085, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Yue,Sun, Jian,Zou, Haijiang,et al. Photochemical aging process on PM2.5 bound PAHs emission from solid fuel combustion in traditional and improved stoves[J]. ATMOSPHERIC RESEARCH,2021,263:11.
APA Zhang, Yue.,Sun, Jian.,Zou, Haijiang.,Zhang, Bin.,Yang, Duoxing.,...&Shen, Zhenxing.(2021).Photochemical aging process on PM2.5 bound PAHs emission from solid fuel combustion in traditional and improved stoves.ATMOSPHERIC RESEARCH,263,11.
MLA Zhang, Yue,et al."Photochemical aging process on PM2.5 bound PAHs emission from solid fuel combustion in traditional and improved stoves".ATMOSPHERIC RESEARCH 263(2021):11.
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