气候变化领域集成服务门户(CCPortal): Real-time emission and stage-dependent emission factors/ratios of specific volatile organic compounds from residential biomass combustion in China

CCPortal

DOI	10.1016/j.atmosres.2020.105189
	Real-time emission and stage-dependent emission factors/ratios of specific volatile organic compounds from residential biomass combustion in China
	Zhang Y.; Kong S.; Sheng J.; Zhao D.; Ding D.; Yao L.; Zheng H.; Wu J.; Cheng Y.; Yan Q.; Niu Z.; Zheng S.; Wu F.; Yan Y.; Liu D.; Qi S.
发表日期	2021
ISSN	0169-8095
卷号	248
英文摘要	The absence of emission factors (EFs) with high-time resolution primarily hinders developing high time-resolution emission inventory for air pollutants, which further restricted the accuracy of air quality modeling, especially for a pollution process. The real-time emission concentration of volatile organic compounds (VOCs) in the combustion process of eleven kinds of residential biomass fuels (RBFs) were studied using a high-resolution proton-transfer-reaction time-of-flight mass spectrometer (PTR-TOF-MS). The dynamic EFs for 18 types of VOCs were firstly obtained with the records of fuel consuming amounts by a balance of high precision. The RBFs burning lasted for about 3–15 min for each experiment with 53–130 g fuels burned. The VOCs concentrations of biomass combustion varied in 0–10 ppm, and exhibited single peak values at about 1–4 min for the entire burning processes. Aldoketones accounted for the largest proportion of the 18 types of VOCs (46.6%–53.6%), followed by methanol (29.2%–44.6%) and alkene (26.2%–31.7%). The real-time EFs of VOCs from RBFs burning firstly decreased to the lowest value of 0.001–3.84 mg/g, and then increased to about 0.23–148 mg/g until the end of combustion processes. The VOCs EFs of all biomass combustion in flaming (1.65 ± 1.55 mg/g) were lower than those in smoldering (16.0 ± 11.3 mg/g). The benzene to toluene (B/T) ratios peaked at 100–200 s of biomass burning processes and changed in 0.07–4.06 for different burning stages. It should be noted that isoprene which was always regarded as the marker for VOCs emitted from biogenic evaporation, can also be released from biomass fuels burning, with real time EFs of 3.16 ± 5.16 mg/g. Its emission amounts and relative importance from combustion sources should be assessed. The high time-resolution of VOCs emission concentrations, emission factors and specific species ratios provide new datasets. They would be useful for dynamic source apportionment and developing high-time resolution emission inventory of VOCs. © 2020 Elsevier B.V.
英文关键词	11 sorts of bio-fuels combustion; Emission factors; PTR-TOF-MS; Real time emission; Volatile organic compounds
语种	英语
scopus关键词	Air quality; Biomass; Fuels; Housing; Inductively coupled plasma; Mass spectrometers; Proton transfer; Volatile organic compounds; Air quality modeling; Combustion pro-cess; Emission concentration; Emission inventories; High-time resolution; Proton transfer reactions; Source apportionment; Time-of-flight mass spectrometers; Combustion; air quality; atmospheric pollution; biomass; biomass burning; combustion; emission inventory; volatile organic compound; China
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/141713
作者单位	Department of Atmospheric Sciences, School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China; Beijing Weather Modification Office, Beijing, China; Department of Environmental Science and Engineering, School of Environmental Studies, China University of Geosciences, Wuhan, 430074, China; Department of Atmospheric Sciences, School of Earth Sciences, Zhejiang University, Hangzhou, China
推荐引用方式 GB/T 7714	Zhang Y.,Kong S.,Sheng J.,et al. Real-time emission and stage-dependent emission factors/ratios of specific volatile organic compounds from residential biomass combustion in China[J],2021,248.
APA	Zhang Y..,Kong S..,Sheng J..,Zhao D..,Ding D..,...&Qi S..(2021).Real-time emission and stage-dependent emission factors/ratios of specific volatile organic compounds from residential biomass combustion in China.Atmospheric Research,248.
MLA	Zhang Y.,et al."Real-time emission and stage-dependent emission factors/ratios of specific volatile organic compounds from residential biomass combustion in China".Atmospheric Research 248(2021).