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Field comparison of portable and stationary instruments for outdoor urban air exposure assessments

AuthorsViana, Mar ; Rivas, Ioar; Reche, Cristina ; Fonseca, Ana Sofia; Pérez, Noemí; Querol, Xavier ; Alastuey, Andrés ; Álvarez-Pedrerol, M.; Sunyer, J.
Issue Date2015
CitationAtmospheric Environment 123: 220- 228 (2015)
AbstractThe performance of three portable monitors (micro-aethalometer AE51, DiscMini, Dusttrak DRX) was assessed for outdoor air exposure assessment in a representative Southern European urban environment. The parameters evaluated were black carbon, particle number concentration, alveolar lung-deposited surface area, mean particle diameter, PM, PM and PM. The performance was tested by comparison with widely used stationary instruments (MAAP, CPC, SMPS, NSAM, GRIMM aerosol spectrometer). Results evidenced a good agreement between most portable and stationary instruments, with R values mostly >0.80. Relative differences between portable and stationary instruments were mostly <20%, and <10% between different units of the same instrument. The only exception was found for the Dusttrak DRX measurements, for which occasional concentration jumps in the time series were detected. Our results validate the performance of the black carbon, particle number concentration, particle surface area and mean particle diameter monitors as indicative instruments (tier 2) for outdoor air exposure assessment studies.
Publisher version (URL)http://dx.doi.org/10.1016/j.atmosenv.2015.10.076
Identifiersdoi: 10.1016/j.atmosenv.2015.10.076
issn: 1873-2844
Appears in Collections:(IDAEA) Artículos
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