WIT Press


A Cost-effective Method For Monitoring Airborne Particulate Matter Using Tabletop SEM-EDS

Price

Free (open access)

Paper DOI

10.2495/AIR100361

Volume

136

Pages

12

Page Range

407 - 418

Published

2010

Size

892 kb

Author(s)

K. Wilkinson, J. Lundkvist, G. Seisenbaeva & V. Kessler

Abstract

Inhalable airborne Particulate Matter (PM) has been linked to adverse effects in the airways and cardiovascular system in humans leading indirectly to hospitalization and possibly premature death. The need to monitor these on a local level has recently been realized with the emergence of low cost tabletop Scanning Electron Microscopes (SEM) with high magnification possibilities offering a quick and easy way of analyzing PM down to 300 nanometres in size. The ease of use of these instruments makes them suitable for an untrained person to routinely monitor elemental constituents of individual particles and possibly linking them to inherent health risks. In this study particles from outdoor air were collected onto Polyamide filters and analyzed using tabletop SEM utilizing Energy Dispersive Spectroscopy (EDS) to determine and identify their chemical composition. 341 particles were successfully characterized and classified in relation to their chemical identity and origin. The regional differences in the samples could be related to the location of sample collection proving that tabletop SEMs offers a possibility of air quality monitoring in relation to the particle impurities. Keywords: monitoring, particulate matter, PM, airborne, tabletop, SEM, EDS, EDAX, elemental analysis. 1 Introduction People spending time in- or outdoors are all subject to inhalable Particulate Matter (PM) in different forms such as an ever present ambient mineral

Keywords

monitoring, particulate matter, PM, airborne, tabletop, SEM, EDS,EDAX, elemental analysis