Fig. 5: Comparison of LCS measurements with the reference instrument. | npj Climate and Atmospheric Science

Fig. 5: Comparison of LCS measurements with the reference instrument.

From: Enhancing accuracy of air quality sensors with machine learning to augment large-scale monitoring networks

Fig. 5

a Regression of raw LCS’s PM2.5 measurements and BAM PM2.5 measurements, in different RH groups, i.e., ‘≤25%’, ‘25% < RH ≤ 50%’, ‘50% < RH ≤ 75%’ and ‘>75%’. The scatter, best-fit lines in red color are of Purple Air and BAM. The scatter, best-fit lines in black color are of ATMOS and BAM. b Box plots of relative humidity and temperature, measured by low-cost sensors and reference instruments.

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