An overview of PCDD/F inventories and emission factors from stationary and mobile sources: What we know and what is missing

Nicholas Kiprotich Cheruiyot, Wen Jhy Lee, Ping Yan, John Kennedy Mwangi, Lin Chi Wang, Xiang Gao, Neng Huei Lin, Guo Ping Chang-Chien

Research output: Contribution to journalReview articlepeer-review

65 Scopus citations

Abstract

This overview attempts to outline what we currently know about the PCDD/F emission inventories and the source categories therein. Besides the best available control techniques, suggestions are offered on how to reduce the PCDD/F emission factors and emission quantity of some important PCDD/F emission sources. The PCDD/F combustion sources can be classified as either stationary or mobile or minimally/uncontrolled combustion sources. The major stationary sources of PCDD/Fs are metal production processes, waste incineration, heat and power plants, and fly ash treatment plant. Crematories, vehicles, residential boilers and stoves are of key concern due to their proximity to residential areas and their relatively lower lying stacks and exhaust gases, which may result in great impact to their surrounding environment. Moreover, we offered our perspectives on how to improve the quality and representative of the PCDD/F emission factors to attain PCDD/F inventories which correspond more to reality. These points of view include: (1) PCDD/F contributions during start-up procedures of MSWIs should be considered, (2) the sampling times of stack flue gases for EAFs and secondary metal smelters should correspond to whole smelting process stages, (3) longer flue gas sampling time should be executed for power plants, (4) direct exhaust samplings from tailpipes for mobile sources, (5) development of an open burn testing facility that can reflect the real open burning conditions, and (6) long-term sampling techniques like AMESA are suggested to used exclusively for the most contributed PCDD/F stationary sources.

Original languageEnglish
Pages (from-to)2965-2988
Number of pages24
JournalAerosol and Air Quality Research
Volume16
Issue number12
DOIs
StatePublished - Dec 2016

Keywords

  • AMESA
  • Biomass burning
  • Electric arc furnaces
  • Mobile sources
  • PCDD/F inventory
  • Stationary sources

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