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. 2024 Mar 9;24(6):1769. doi: 10.3390/s24061769

Figure 9.

Figure 9

The test results of (A) mass concentrations of suspended dust fractions (PM1.0, PM2.5, and PM10.0); (B) temperature and relative humidity; (C) volume concentration of CO2; (D) volume concentration of NO2; (E) volume concentration of O3; (F) volume concentration of O2; (G) volume concentration of NH3; and (H) VOC index.