Ming Wei Chang1, Minh Man Trinh2, Chian Kou Lien3, Moo Been Chang This email address is being protected from spambots. You need JavaScript enabled to view it.1

1 Graduate Institute of Environmental Engineering, National Central University, Taoyuan 32001, Taiwan
2 Green Energy and Environment Research Laboratories, Industrial Technology Research Institute, Hsinchu 31040, Taiwan
3 Institute of Environmental and Occupational Health Sciences, National Yang Ming Chiao Tung University, Taipei 112, Taiwan

Received: July 17, 2023
Revised: February 12, 2024
Accepted: February 18, 2024

 Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.

Download Citation: ||https://doi.org/10.4209/aaqr.230171  

Cite this article:

Chang, M.W., Trinh, M.M., Lien, C.K., Chang, M.B. (2024). Characteristics of PM and PAHs Emitted from Oil-fired Process. Aerosol Air Qual. Res. 24, 230171. https://doi.org/10.4209/aaqr.230171


  • The emission of CPM from oil-fired boiler is greatly higher than FPM.
  • CPM concentration is not affected by ESP.
  • Higher loading capacity does not increase the CPM and PAHs concentration capacity.


Sampling and analysis of NOx, SO2, filterable particulate matter (FPM), FPM2.5, condensable particulate matter (CPM), and polycyclic aromatic hydrocarbons (PAHs) emitted from an oil-fired boiler equipped with efficiency of electrostatic precipitator (ESP) as air pollution control devices (APCDs) were conducted. Moreover, the emission characteristics of these pollutants were also evaluated at two loadings, i.e., low (30%) and high (80%) capacities. The results show that the NO concentration (90 ppm) emitted from the oil-fired boiler at low loading was lower than that of the high loading (176 ppm) while SO2 concentrations are close under two loading conditions. In terms of particulate matter, the concentrations of FPM, FPM2.5, and CPM measured in the stack at low loading were 0.2, 0.1, and 51.2 mg Nm–3, respectively. As the boiler loading was increased from 30% to 80%, the concentrations of FPM, FPM2.5, and CPM increased to 1.1, 0.6, and 65.0 mg Nm–3, respectively. The total concentrations of PAHs in high loading and low loading oil-fired boilers were 28.3 and 24.4 µg Nm–3, respectively, and the contribution of gas-phase PAHs to the total PAHs was higher than 90%. Regarding the distribution of PAHs species, Nap is the dominant congener of the oil-fired boiler while BcFE is the major contributor for toxic equivalent concentrations. In addition, air pollutant emission factors reported in literatures were compiled and compared those obtained in this study. The results show that the emission factors of PAHs and FPM obtained for this oil-fired boilers are lower than the values measured in other studies.

Keywords: Oil-fired boiler, PM2.5, Condensable particulate matter, Polycyclic aromatic hydrocarbons (PAHs)

Share this article with your colleagues 


Subscribe to our Newsletter 

Aerosol and Air Quality Research has published over 2,000 peer-reviewed articles. Enter your email address to receive latest updates and research articles to your inbox every second week.

77st percentile
Powered by
   SCImago Journal & Country Rank

2022 Impact Factor: 4.0
5-Year Impact Factor: 3.4

Aerosol and Air Quality Research partners with Publons

CLOCKSS system has permission to ingest, preserve, and serve this Archival Unit
CLOCKSS system has permission to ingest, preserve, and serve this Archival Unit

Aerosol and Air Quality Research (AAQR) is an independently-run non-profit journal that promotes submissions of high-quality research and strives to be one of the leading aerosol and air quality open-access journals in the world. We use cookies on this website to personalize content to improve your user experience and analyze our traffic. By using this site you agree to its use of cookies.