Size-Dependent Chemical Compositions in Particulate Matters from Major Outdoor Sources in a Megacity and Corresponding Inhalation Exposure Assessment

You, S. , Dai, Y., Tong, Y.W., Wang, C.H. and Yao, Z. (2016) Size-Dependent Chemical Compositions in Particulate Matters from Major Outdoor Sources in a Megacity and Corresponding Inhalation Exposure Assessment. AIChE Annual Meeting, San Francisco, CA, USA, 13-18 Nov 2016.

Abstract

A variety of existing studies have characterized the chemical compositions in particulate matters (PM) for various megacities. However, these studies rarely accounted for the size-dependence of chemical constituents in PM, hindering the application of the data for inhalation exposure assessment and thus epidemiological studies. In this work, a series of field measurements were conducted to characterize the major emission sources of Singapore, i.e. traffic and industry emissions (coal combustion is rare in Singapore and thus disregarded). The particle size distribution and corresponding size-dependent chemical compositions were identified. Existing respiratory deposition models were employed to analyze the deposition distributions of particles and chemical compositions in the human respiratory system, based on the data of particle size and chemical compositions. Finally, potential protection suggestions were proposed to mitigate the PM exposure for susceptible populations. The data in this work will be also representative to other megacities whose particulate air pollution is mainly derived from traffic and industry emissions.

• Item Type: Conference or Workshop Item
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: You, Dr Siming
• Authors: You, S., Dai, Y., Tong, Y.W., Wang, C.H., and Yao, Z.
• College/School: College of Science and Engineering > School of Engineering > Systems Power and Energy

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