Articles | Volume 13, issue 6
Atmos. Meas. Tech., 13, 3277–3301, 2020
https://doi.org/10.5194/amt-13-3277-2020
Atmos. Meas. Tech., 13, 3277–3301, 2020
https://doi.org/10.5194/amt-13-3277-2020

Research article 30 Jun 2020

Research article | 30 Jun 2020

Mobile-platform measurement of air pollutant concentrations in California: performance assessment, statistical methods for evaluating spatial variations, and spatial representativeness

Paul A. Solomon et al.

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Analyzing street-level air pollutants (2016–2017), this assessment indicates that mobile measurement is precise and accurate (5 % to 25 % bias) relative to regulatory sites, with higher spatial resolution. Collocated sensor measurements in California showed differences less than 20 %, suggesting that greater differences represent spatial variability. Mobile data confirm regulatory-site spatial representation and that pollutant levels can also be 6 to 8 times higher just blocks apart.