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Determining the reliability of the Vitalight CO2 Monitor via the assessment of the carbon dioxide profile on city transit buses

Fig 5

CO2 monitor correlation.

Using Pearson’s correlation, there was a strong positive relationship between CO2 concentration (ppm) as measured by the Vitalight and the Aranet at a) T1 and b) T2.

Fig 5

doi: https://doi.org/10.1371/journal.pone.0342566.g005