|
Environ Int
Title: | "Volatile organic compounds emissions from traditional and clean domestic heating appliances in Guanzhong Plain, China: Emission factors, source profiles, and effects on regional air quality" |
|
Author(s): | Sun J; Shen Z; Zhang L; Zhang Y; Zhang T; Lei Y; Niu X; Zhang Q; Dang W; Han W; Cao J; Xu H; Liu P; Li X; |
|
Address: | "School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an 710049, China; Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China. Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China. Electronic address: zxshen@mail.xjtu.edu.cn. Air Quality Research Division, Science and Technology Branch, Environment and Climate Change Canada, Toronto, Canada. Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China. The Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong, China. College of Forestry, Henan Agricultural University, Zhengzhou 450000, China. Environmental Monitoring Station of Fufeng County, West Street of Fufeng County, 722200, China. Key Lab of Aerosol Chemistry & Physics, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710049, China. School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an 710049, China" |
|
Journal Title: | Environ Int |
Year: | 2019 |
Volume: | 20191101 |
Issue: | Pt B |
Page Number: | 105252 - |
DOI: | 10.1016/j.envint.2019.105252 |
|
ISSN/ISBN: | 1873-6750 (Electronic) 0160-4120 (Linking) |
|
Abstract: | "Solid (biomass and coal) fuels burned for residential heating are major sources of atmospheric volatile organic compounds (VOCs). In this study, VOC samples were collected in-situ from chimneys in 10 typical heating scenarios in rural areas of the Guanzhong Plain. A modified SUMA canister approach was then employed, followed by gas chromatography/mass spectrometry analysis. Emission factors (EFs) (as received basis) of targeted non-methane VOCs (NMVOCs) varied from 90.3?ª++/-?ª+29.3 to 12300?ª++/-?ª+1510?ª+mg?ª+kg(-1) in descending order of fuel wood?ª+>?ª+maize straw?ª+>?ª+bitumite >> anthracite (p?ª+ª+0.05). Both clean stove and coal briquetting technologies effectively reduced VOC EFs compared with traditional heating methods. The EFs of methane (CH(4)) had similar characteristics to those of NMVOCs. However, they yielded different correlations with CO because of their differing mechanisms of formation. Coefficient of divergence (CD) values showed that a semi-gasifier has a limited effect on changing VOC profiles compared with a traditional stove using the same fuels. However, different types of fuel produce CD values over 0.50, which should therefore be classified as different sub-categories in source apportionment models. Correlation analysis showed that volatile matter content (V%) and modified combustion efficiency (MCE) were the two primary factors influencing NMVOC and CH(4) emissions. A stepwise linear regression analysis showed that V%, MCE, and element nitrogen content (N%) can be used to predict total VOC (TVOCs, including CH(4) and NMVOCs) emissions with regression coefficients of 0.23, -72.8 and -6.53, respectively (R(2)?ª+=?ª+0.92, p?ª+ª+0.001). Ozone formation potential (OFP) EFs from burning solid fuel ranged from 72 to 18680?ª+mg?ª+kg(-1), with an approximate 50% contribution from alkenes. VOCs from burning solid fuel were equivalent to 62 to 22200?ª+mg?ª+kg(-1) secondary organic aerosol formation potential (SOAP), most of which (>95%) were contributed by aromatics. A semi-gasifier and coal briquettes were effective in reducing TVOC emissions, even when used in conjunction with a traditional stove and fuels. It is estimated that over 15,000 ton year(-1) emissions can be reduced in Guanzhong Plain by adopting a semi-gasifier and coal briquettes, resulting in a 57,000 and 65,000 ton year(-1) reduction of OFP and SOAP emissions, respectively. These results demonstrate that the use of clean heating technologies in Guanzhong Plain has considerable potential in relation to emissions reduction and thus provides a feasible solution to mitigate VOCs and related secondary pollutants emitted by residential solid fuel burning" |
|
Keywords: | Aerosols/analysis Air Pollutants/*chemistry Biomass China Coal Environmental Monitoring Heating/*instrumentation Household Products Humans Ozone/analysis Volatile Organic Compounds/*chemistry Wood/chemistry Clean heating technology Ozone formation potenti; |
|
Notes: | "MedlineSun, Jian Shen, Zhenxing Zhang, Leiming Zhang, Yue Zhang, Tian Lei, Yali Niu, Xinyi Zhang, Qian Dang, Wei Han, Wenping Cao, Junji Xu, Hongmei Liu, Pingping Li, Xuxiang eng Research Support, Non-U.S. Gov't Netherlands 2019/11/05 Environ Int. 2019 Dec; 133(Pt B):105252. doi: 10.1016/j.envint.2019.105252. Epub 2019 Nov 1" |
|
|
|
|
|
Citation: El-Sayed AM 2024. The Pherobase: Database of Pheromones and Semiochemicals. <http://www.pherobase.com>.
© 2003-2024 The Pherobase - Extensive Database of Pheromones and Semiochemicals. Ashraf M. El-Sayed.
Page created on 16-11-2024
|