Working Paper Article Version 1 This version is not peer-reviewed

Characterization of PM2.5 at a Traffic Site Using Several Integrated Analytical Techniques

Version 1 : Received: 9 March 2020 / Approved: 10 March 2020 / Online: 10 March 2020 (11:12:29 CET)

How to cite: Hamdan, N.; Alawadhi, H.; Shameer, M. Characterization of PM2.5 at a Traffic Site Using Several Integrated Analytical Techniques. Preprints 2020, 2020030167 Hamdan, N.; Alawadhi, H.; Shameer, M. Characterization of PM2.5 at a Traffic Site Using Several Integrated Analytical Techniques. Preprints 2020, 2020030167

Abstract

We have conducted a comprehensive year-long sampling campaign for particulate matter (PM) pollutants at a site near a major highway, following standard protocols. Total mass, and elemental and chemical composition of the fine fractions (PM2.5) of traffic-related pollutants are determined utilizing several complementary techniques. These complementary techniques included gravimetric analysis, X-ray fluorescence (XRF), scanning electron microscopy and energy dispersive spectroscopy, X-ray diffraction (XRD) and black carbon multi-wavelength absorption. The results show that the PM2.5 mass concentrations are within or slightly above international standards and include natural dust and anthropogenic pollutants such as black carbon, sulfates and other traffic-related elements. Anthropogenic sources include the secondary pollutants Mascagnite and Koktaite, traffic emissions such as exhaust emissions and tires, brakes and road erosions. It was found that the sulfates are the highest contributors to PM2.5 (~40%), as evident from XRD results and the S content in the XRF analysis.

Subject Areas

PM2.5; chemical composition; analytical techniques; traffic site

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our diversity statement.

Leave a public comment
Send a private comment to the author(s)
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.