Hourly emission amounts and concentration of water-soluble ions in primary particles from residential coal burning in rural northern China

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

  • Qin Yan
  • Shaofei Kong
  • Wenjie Zhang
  • Qingxian Gao
  • Yuzhe Zhang
  • Hui Li
  • Han Wang
  • Tingyu Xiao
  • Junhong Li

Related Research Unit(s)

Detail(s)

Original languageEnglish
Article number124641
Journal / PublicationEnvironmental Pollution
Volume359
Online published8 Aug 2024
Publication statusPublished - 15 Oct 2024

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. © 2024 Elsevier Ltd.

Research Area(s)

  • Emission factors, Emission inventory, Hourly resolution, Residential coal burning

Citation Format(s)

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 et al.
In: Environmental Pollution, Vol. 359, 124641, 15.10.2024.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review