Abstract
Size fractionated airborne particle samples were collected from the top of the BT Tower and a ground-based site in Regents Park in London by deploying MOUDI instruments at the two locations. Particles were examined by Transmission Electron Microscope (TEM), Energy Dispersive X-Ray Analysis (EDX) and selected area electron diffraction patterns to determine the morphology, crystallinity and composition of individual particles in aggregated and non-aggregated forms. Eight different types of particles were observed which were common both to the ground-based location and some 160 m above the conurbation of London at the top of the BT Tower. Of these different types, amorphous carbonaceous aggregates (soot-like) containing C and O and often extending to the inclusion of Ca, K and Fe were the most common type of particles that occurred across all stages of the impactors but were most common in the fractions
Original language | English |
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Pages (from-to) | 400-407 |
Number of pages | 8 |
Journal | Atmospheric Environment |
Volume | 62 |
Early online date | 4 Sept 2012 |
DOIs | |
Publication status | Published - 1 Dec 2012 |
Bibliographical note
Copyright 2012 Elsevier B.V., All rights reserved.Keywords
- Transmission Electron Microscope
- ATOFMS
- Airborne particles
- Particulate matter
- Atmospheric aerosol