Characterization of aerosol particles produced by a skyscraper demolition by blasting

  • We present a study characterizing aerosol particles resulting from a skyscraper blasting. High mass concentrations with a maximum of 844.9 μg m-3 were present for a short time period of approximately 15 minutes. They result in a day mean of 32.6 μg m-3 compared to a 27.6 μg m-3 background not exceeding the 50 μg m-3 EU maximum permissive value. The increase in particle number concentration was less pronounced with a maximum concentration of 6.9 ⋅ 104 cm-3 compared to the local background value of 1.8 ⋅ 104 cm-3. The size-resolved number concentration shows a single mode of ultrafine particles at approximately 93 nm. The spatial distribution of deposited dust was investigated with Bergerhoff glass collection vessels, showing a decrease with distance. In the deposited dust samples the concentrations of twelve metals was determined, non of them exceeded the regional background concentrations significantly. The chemical composition of individual particles emitted by the demolition was studied by Scanning Electron Microscopy. They were mainly concrete and steel particles, with 60% calcium carbonates, 19% calcium sulfates, 19% silicates and 2% steel. In energy-dispersive X-Ray Spectroscopy, no fibers like asbestos were observed. Using a broad spectrum of instruments and methods, we obtain comprehensive characterization of the particles emitted by the demolition.

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Author:Andrea Christine Wagner, Anton Bergen, Sophia Brilke, Bertram Bühner, Martin Ebert, Werner Haunold, Martin Heinritzi, Stephan Herzog, Stefan Jacobi, Andreas Kürten, Felix Piel, Alfons Ramme, Daniel Weber, Stephan Weinbruch, Joachim CurtiusORCiD
Parent Title (English):Journal of aerosol science
Place of publication:Amsterdam
Document Type:Article
Year of Completion:2017
Date of first Publication:2017/06/27
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2019/11/04
Tag:Chemical composition; Demolition emissions; PM10; Size distribution; Ultrafine particles; Urban aerosol
Page Number:8
First Page:11
Last Page:18
© 2017 Elsevier Ltd. All rights reserved.
Institutes:Geowissenschaften / Geographie / Geowissenschaften
Wissenschaftliche Zentren und koordinierte Programme / Starker Start ins Studium: Qualitätspakt Lehre
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 55 Geowissenschaften, Geologie / 550 Geowissenschaften
Licence (German):License LogoDeutsches Urheberrecht