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Hourly emission amounts and concentration of water-soluble ions in primary particles from residential coal burning in rural northern China.
Yan, Qin; Liu, Xi; Kong, Shaofei; Zhang, Wenjie; Gao, Qingxian; Zhang, Yuzhe; Li, Hui; Wang, Han; Xiao, Tingyu; Li, Junhong.
Afiliación
  • Yan Q; Institute of Atmospheric Environment, Chinese Research Academy of Environmental Sciences, Beijing, China; Department of Atmospheric Sciences, School of Environmental Sciences, China University of Geosciences, Wuhan, China.
  • Liu X; School of Energy and Environment, City University of Hong Kong, Hong Kong SAR, China.
  • Kong S; Department of Atmospheric Sciences, School of Environmental Sciences, China University of Geosciences, Wuhan, China; Research Centre for Complex Air Pollution of Hubei Province, Wuhan, China. Electronic address: kongshaofei@cug.edu.cn.
  • Zhang W; Institute of Atmospheric Environment, Chinese Research Academy of Environmental Sciences, Beijing, China. Electronic address: zhangwj@craes.org.cn.
  • Gao Q; Institute of Atmospheric Environment, Chinese Research Academy of Environmental Sciences, Beijing, China.
  • Zhang Y; Institute of Atmospheric Environment, Chinese Research Academy of Environmental Sciences, Beijing, China.
  • Li H; Institute of Atmospheric Environment, Chinese Research Academy of Environmental Sciences, Beijing, China.
  • Wang H; Institute of Atmospheric Environment, Chinese Research Academy of Environmental Sciences, Beijing, China.
  • Xiao T; Institute of Atmospheric Environment, Chinese Research Academy of Environmental Sciences, Beijing, China.
  • Li J; Institute of Atmospheric Environment, Chinese Research Academy of Environmental Sciences, Beijing, China.
Environ Pollut ; 359: 124641, 2024 Oct 15.
Article en En | MEDLINE | ID: mdl-39122172
ABSTRACT
Residential coal burning (RCB) stands as an important contributor to ambient pollutants in China. For the effective execution of air pollution control policies, it is essential to maintain precise emission inventories of RCB. The absence of hourly emission factors (EFs) combined with the inaccuracies in the spatial-temporal distribution of activity data, constrained the quality of residential coal combustion emission inventories, thereby impeding the estimation of air pollutant emissions. This study revised the hourly EFs for PM2.5 and water-soluble ions (WSIs) emitted from RCB in China. The hourly emission inventories for PM2.5 and WSIs derived from RCB illustrate the diurnal fluctuations in emission patterns. This study found that the emissions of PM2.5, NH4+, Cl-, and SO42- showed similar emission features with emission of 106.8 Gg, 1417.6, 356.8, and 5868.5 ton in erupt period. The results provide basic data for evaluating RCB emission reduction policies, simulating particles, and preventing air pollution in both sub-regions and time periods. The spatial emission and simulated concentration distribution of PM2.5 and WSIs indicated that emission hotspot shifted from North China Plain (NCP) to Northeast region in China. The emissions in China were well-controlled in '2 + 26' region (R28) priority region, with hotspots decreasing by 99.6% in BTH region. The RCB became the dominant contributor to ambient PM2.5 with a ratio in the range of 16.2-23.7% in non-priority region.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Monitoreo del Ambiente / Carbón Mineral / Contaminantes Atmosféricos / Contaminación del Aire / Material Particulado País/Región como asunto: Asia Idioma: En Revista: Environ Pollut Asunto de la revista: SAUDE AMBIENTAL Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Monitoreo del Ambiente / Carbón Mineral / Contaminantes Atmosféricos / Contaminación del Aire / Material Particulado País/Región como asunto: Asia Idioma: En Revista: Environ Pollut Asunto de la revista: SAUDE AMBIENTAL Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido