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. 2021 Jun 15;73:103096. doi: 10.1016/j.scs.2021.103096

Fig. 2.

Fig 2

Fig 2

(a). Time series of PM1, PM2.5 and PM10 concentrations during mobile measurements in 2017 and 2020 (PM1, PM10 – data from Dusttrak, PM2.5 – data from Grimm). (b). Time series of PN0.1, PN1 and PN concentrations during mobile measurements in 2017 and 2020 (PN0.1, PN – data from Grimm, PN1 – data from P-trak).