Skip to main content
. Author manuscript; available in PMC: 2024 Feb 3.
Published in final edited form as: Environ Sci Atmos. 2023 Feb 3;3:521–536. doi: 10.1039/d2ea00142j

Table 2:

PM2.5, temperature and RH values, and months corresponding to flagged and unflagged measurements.

Unflagged Data
(n=112,716,535, 99%)		 Flagged Data
(n= 1,543,405, 1%)
Raw Mean PM2.5 (Mean of Channel A and Channel B) (μg/m3) Min/Max: 0/1459
Mean: 10
Median: 5
1st quartile: 2
3rd quartile: 11		 Min/Max: 2.5/1339
Mean: 26
Median: 14
1st quartile: 7
3rd quartile: 27
RH (%) Min/Max: 0/99
Mean: 46
Median: 48
1st quartile: 34
3rd quartile: 59		 Min/Max: 0/99
Mean: 43
Median: 44
1st quartile: 30
3rd quartile: 57
Temperature (°C) Min/Max: −42/68
Mean: 18
Median: 18
1st quartile: 11
3rd quartile: 24		 Min/Max: −46/89
Mean: 19
Median: 19
1st quartile: 13
3rd quartile: 26
Month Jan: 10,233,928 (98.5%)
Feb: 9,650,954 (98.4%)
March: 10,979,861 (98.7%)
April: 10,989,824 (98.9%)
May: 11,671,186 (98.8%)
June: 11,674,808 (98.6%)
July: 9,555,217 (98.6%)
Aug: 5,246,854 (98.7%)
Sep: 6,248,360 (98.6%)
Oct: 8,025,096 (98.8%)
Nov: 8,759,251 (98.6%)
Dec: 9,681,196 (98.5%)		 Jan: 157,728 (1.5%)
Feb:156,615 (1.6%)
March: 141,003 (1.3%)
April: 125,060 (1.1%)
May: 143,421 (1.2%)
June: 160,317 (1.4%)
July: 140,255 (1.4%)
Aug: 67,196 (1.3%)
Sep: 86,200 (1.4%)
Oct: 99,753 ((1.2%)
Nov: 120,721 (1.4%)
Dec: 145,136 (1.5%)