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Emissions of air pollutants from household stoves: honeycomb coal versus coal cake.

Publication ,  Journal Article
Ge, S; Xu, X; Chow, JC; Watson, J; Sheng, Q; Liu, W; Bai, Z; Zhu, T; Zhang, J
Published in: Environmental science & technology
September 2004

Domestic coal combustion can emit various air pollutants. In the present study, we measured emissions of particulate matter (PM) and gaseous pollutants from burning a specially formulated honeycomb coal (H-coal) and a coal cake (C-coal). Flue gas samples for PM2.5, PM coarse (PM2.5-10), and TSP were collected isokinetically using a cascade impactor; PM mass concentrations were determined gravimetrically. Concentrations of SO2, NOx, and ionic Cr(VI) in PM were analyzed using spectrometric methods. Fluoride concentrations were measured using a specific ion electrode method. PM elemental components were analyzed using an X-ray fluorescence technique. Total (gas and particle phase) benzo[a]pyrene (BaP) concentration was determined using an HPLC/fluorescence method. Elemental and organic carbon contents of PM were analyzed using a thermal/optical reflectance technique. The compositional and structural differences between the H-coal and C-coal resulted in different emission characteristics. In generating 1 MJ of delivered energy, the H-coal resulted in a significant reduction in emissions of SO2 (by 68%), NOx (by 47%), and TSP (by 56%) as compared to the C-coal, whereas the emissions of PM2.5 and total BaP from the H-coal combustion were 2-3-fold higher, indicating that improvements are needed to further reduce emissions of these pollutants in developing future honeycomb coals. Although the H-coal and the C-coal had similar emission factors for gas-phase fluoride, the H-coal had a particle-phase fluoride emission factor that was only half that of the C-coal. The H-coal had lower energy-based emissions of all the measured toxic elements in TSP but higher emissions of Cd and Ni in PM2.5.

Duke Scholars

Published In

Environmental science & technology

DOI

EISSN

1520-5851

ISSN

0013-936X

Publication Date

September 2004

Volume

38

Issue

17

Start / End Page

4612 / 4618

Related Subject Headings

  • Sulfur Dioxide
  • Particle Size
  • Nitrogen Oxides
  • Household Articles
  • Fluorides
  • Environmental Sciences
  • Coal
  • Chromium Compounds
  • Benzo(a)pyrene
  • Air Pollution, Indoor
 

Citation

APA
Chicago
ICMJE
MLA
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Ge, S., Xu, X., Chow, J. C., Watson, J., Sheng, Q., Liu, W., … Zhang, J. (2004). Emissions of air pollutants from household stoves: honeycomb coal versus coal cake. Environmental Science & Technology, 38(17), 4612–4618. https://doi.org/10.1021/es049942k
Ge, Su, Xu Xu, Judith C. Chow, John Watson, Qing Sheng, Weili Liu, Zhipeng Bai, Tan Zhu, and Junfeng Zhang. “Emissions of air pollutants from household stoves: honeycomb coal versus coal cake.Environmental Science & Technology 38, no. 17 (September 2004): 4612–18. https://doi.org/10.1021/es049942k.
Ge S, Xu X, Chow JC, Watson J, Sheng Q, Liu W, et al. Emissions of air pollutants from household stoves: honeycomb coal versus coal cake. Environmental science & technology. 2004 Sep;38(17):4612–8.
Ge, Su, et al. “Emissions of air pollutants from household stoves: honeycomb coal versus coal cake.Environmental Science & Technology, vol. 38, no. 17, Sept. 2004, pp. 4612–18. Epmc, doi:10.1021/es049942k.
Ge S, Xu X, Chow JC, Watson J, Sheng Q, Liu W, Bai Z, Zhu T, Zhang J. Emissions of air pollutants from household stoves: honeycomb coal versus coal cake. Environmental science & technology. 2004 Sep;38(17):4612–4618.
Journal cover image

Published In

Environmental science & technology

DOI

EISSN

1520-5851

ISSN

0013-936X

Publication Date

September 2004

Volume

38

Issue

17

Start / End Page

4612 / 4618

Related Subject Headings

  • Sulfur Dioxide
  • Particle Size
  • Nitrogen Oxides
  • Household Articles
  • Fluorides
  • Environmental Sciences
  • Coal
  • Chromium Compounds
  • Benzo(a)pyrene
  • Air Pollution, Indoor