Environmental monitoring of airborne nanoparticles
Morawska, Lidia, Wang, Hao, Ristovski, Zoran, Jayaratne, Rohan, Johnson, Graham R., Cheung, Hing Cho, Ling, Xuan, & He, Congrong (2009) Environmental monitoring of airborne nanoparticles. Journal of Environmental Monitoring, 11, pp. 1758-1773.
The aim of this work was to review the existing instrumental methods to monitor airborne nanoparticle in different types of indoor and outdoor environments in order to detect their presence and to characterise their properties. Firstly the terminology and definitions used in this field are discussed, which is followed by a review of the methods to measure particle physical characteristics including number concentration, size distribution and surface area. An extensive discussion is provided on the direct methods for particle elemental composition measurements, as well as on indirect methods providing information on particle volatility and solubility, and thus in turn on volatile and semivolatile compounds of which the particle is composed. A brief summary of broader considerations related to nanoparticle monitoring in different environments concludes the paper.
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