Author:
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Viana, Maria Carmen; Rivas, Ioar; Reche, Cristina; Fonseca, Ana Sofía; Pérez, Noemí; Querol, Xavier; Alastuey, Andrés; Álvarez Pedrerol, Mar; Sunyer Deu, Jordi
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Abstract:
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The 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 10,PM 2.5 and PM 1. 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 2 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. |
Abstract:
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The research leading to these results has received funding from the European Research Council under the ERC Grant Agreement number 268479 - the BREATHE project. Additional funding for specific instrumentation was provided by national project IMPACT (CGL2011-26574), the Spanish Ministry of Agriculture, Food and the Environment (UCA2009020083), and projects VAMOS (CLG2010-19464-CLI) and GRACCIECSD2007-00067. Support is acknowledged to Generalitat de Catalunya 2009 SGR8 and to FP7 Marie Curie ITN HEXACOMM (Nr.315760) |