Fig. 6: Accuracy validation of all-day horizontal CT imaging results. | Nature Communications

Fig. 6: Accuracy validation of all-day horizontal CT imaging results.

From: Ozone pollution monitoring using a full-time hyperspectral tomography system for multiple air pollutants

Fig. 6

a shows the position of the instrument during the comparison experiment. b, c, and d illustrate the concentration distributions of O3, NO2, and HCHO, respectively, with crosses indicating the pollutant concentration values measured by mobile observation vehicles. e1, e2, and e3 are the comparison and verification of the observation results of NO2, O3 and HCHO by ACHTIC and the observation results of the mobile DOAS, respectively.

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