"Year","Month","Day","Hour","SO2 (ppm)","NO (ppm)","NO2 (ppm)","NOx (ppm)","Ox (ppm)","NMHC (ppmC)","CH4 (ppmC)","THC (ppmC)","SPM (mg/m3)","PM2.5 (micro-g/m3)","WD","WS (m/s)" 2020,12,21,01,0.001,0,0.012,0.012,0.013,0.08,2.06,2.14,0.014,12,quiet,0.4 12,quiet,0.4 2020,12,21,02,0.001,0,0.010,0.010,0.015,0.06,2.06,2.12,0.011,13,N,0.7 13,N,0.7 2020,12,21,03,0.001,0,0.008,0.008,0.019,0.01,2.01,2.02,0.008,9,quiet,0 9,quiet,0 2020,12,21,04,0.001,0,0.007,0.007,0.020,0.04,2.00,2.04,0.006,8,quiet,0.3 8,quiet,0.3 2020,12,21,05,0.001,0,0.009,0.009,0.019,0,2.01,2.01,0.011,9,N,0.7 9,N,0.7 2020,12,21,06,0.001,0.001,0.013,0.014,0.014,0.03,2.03,2.06,0.009,9,quiet,0.1 9,quiet,0.1 2020,12,21,07,0,0.001,0.018,0.019,0.007,0.10,2.04,2.14,0.011,9,quiet,0.2 9,quiet,0.2 2020,12,21,08,0,0.010,0.023,0.033,0.003,0.13,2.05,2.18,0.011,12,quiet,0.3 12,quiet,0.3 2020,12,21,09,0.001,0.012,0.017,0.029,0.009,0.27,2.04,2.31,0.010,10,quiet,0.4 10,quiet,0.4 2020,12,21,10,0.001,0.004,0.011,0.015,0.023,0.02,2.00,2.02,0.010,9,SW,0.7 9,SW,0.7 2020,12,21,11,0.002,0.003,0.010,0.013,0.028,0,2.00,2.00,0.009,13,SW,0.8 13,SW,0.8 2020,12,21,12,0.002,0.002,0.007,0.009,0.034,0,1.99,1.99,0.012,14,NE,0.7 14,NE,0.7 2020,12,21,13,0.001,0.001,0.005,0.006,0.038,0,1.98,1.98,0.011,10,SW,0.8 10,SW,0.8 2020,12,21,14,0.001,0.001,0.005,0.006,0.039,0,1.97,1.97,0.014,15,N,1.1 15,N,1.1 2020,12,21,15,0.001,0.001,0.006,0.007,0.038,0,1.98,1.98,0.016,16,S,0.6 16,S,0.6 2020,12,21,16,0.001,0.001,0.006,0.007,0.040,0,1.99,1.99,0.017,19,N,1.2 19,N,1.2 2020,12,21,17,0.001,0.001,0.006,0.007,0.040,0,2.00,2.00,0.016,19,quiet,0.4 19,quiet,0.4 2020,12,21,18,0.001,0.001,0.007,0.008,0.039,0,2.00,2.00,0.021,24,SE,0.5 24,SE,0.5 2020,12,21,19,0.001,0.001,0.010,0.011,0.035,0,1.99,1.99,0.024,24,quiet,0.3 24,quiet,0.3 2020,12,21,20,0.001,0.003,0.013,0.016,0.028,0.07,2.01,2.08,0.023,25,quiet,0 25,quiet,0 2020,12,21,21,0.001,0,0.015,0.015,0.025,0.03,2.02,2.05,0.019,19,N,0.8 19,N,0.8 2020,12,21,22,0.001,0.001,0.019,0.020,0.018,0.08,2.02,2.10,0.023,23,N,0.7 23,N,0.7 2020,12,21,23,0.001,0.001,0.015,0.016,0.016,0.04,2.01,2.05,0.019,21,quiet,0.3 21,quiet,0.3 2020,12,21,24,0,0.001,0.015,0.016,0.015,0.13,2.02,2.15,0.020,19,quiet,0.1 19,quiet,0.1