AQSQID: 011011002

Site Name: Montg

Location: Montgomery (Johnstown), AL

Reporting: True, Located: True

Current AQI: 11.0

Montgomery (Johnstown) AL, US: 32.4069, -86.2564

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 28, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.6 μg/m3 (11) 11.0
 
March 28, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.8 μg/m3 (20) 20.0
 
March 28, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
March 28, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.9 μg/m3 (12) 12.0
 
March 28, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.6 μg/m3 (15) 15.0
 
March 28, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.7 μg/m3 (32) 32.0
 
March 28, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.5 μg/m3 (31) 31.0
 
March 28, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
March 28, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.2 μg/m3 (38) 38.0
 
March 28, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.9 μg/m3 (54) 54.0
 
March 28, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 20.2 μg/m3 (67) 67.0
 
March 27, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 25.3 μg/m3 (78) 78.0
 
March 27, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 17.8 μg/m3 (62) 62.0
 
March 27, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.4 μg/m3 (53) 53.0
 
March 27, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
March 27, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 18.8 μg/m3 (64) 64.0
 
March 27, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.6 μg/m3 (53) 53.0
 
March 27, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.2 μg/m3 (38) 38.0
 
March 27, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 15.6 μg/m3 (58) 58.0
 
March 27, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 16.8 μg/m3 (60) 60.0
 
March 27, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 17.6 μg/m3 (62) 62.0
 
March 27, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 21.9 μg/m3 (71) 71.0
 
March 27, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 19.5 μg/m3 (66) 66.0
 
March 27, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (82) 82.0
 
March 27, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 21.5 μg/m3 (70) 70.0
 
March 27, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 18.8 μg/m3 (64) 64.0
 
March 27, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 23.1 μg/m3 (74) 74.0
 
March 27, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (63) 63.0
 
March 27, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 22.2 μg/m3 (72) 72.0
 
March 27, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 24.1 μg/m3 (76) 76.0
 
March 27, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 23.4 μg/m3 (74) 74.0
 
March 27, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 23.4 μg/m3 (74) 74.0
 
March 27, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 22.7 μg/m3 (73) 73.0
 
March 27, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 20.7 μg/m3 (69) 69.0
 
March 27, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 17.1 μg/m3 (61) 61.0
 
March 26, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 21.9 μg/m3 (71) 71.0
 
March 26, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 16.1 μg/m3 (59) 59.0
 
March 26, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.9 μg/m3 (50) 50.0
 
March 26, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.4 μg/m3 (53) 53.0
 
March 26, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.6 μg/m3 (53) 53.0
 
March 26, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 15.8 μg/m3 (58) 58.0
 
March 26, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 15.8 μg/m3 (58) 58.0
 
March 26, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 15.8 μg/m3 (58) 58.0
 
March 26, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 16.1 μg/m3 (59) 59.0
 
March 26, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 23.6 μg/m3 (75) 75.0
 
March 26, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 26.5 μg/m3 (81) 81.0
 
March 26, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 17.5 μg/m3 (62) 62.0
 
March 26, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
March 26, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.6 μg/m3 (48) 48.0
 
March 26, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.5 μg/m3 (35) 35.0
 
March 26, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 17.5 μg/m3 (62) 62.0
 
March 26, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 15.8 μg/m3 (58) 58.0
 
March 26, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 15.1 μg/m3 (57) 57.0
 
March 26, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 15.1 μg/m3 (57) 57.0
 
March 26, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.5 μg/m3 (35) 35.0
 
March 26, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.7 μg/m3 (45) 45.0
 
March 26, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 14.6 μg/m3 (56) 56.0
 
March 26, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.7 μg/m3 (45) 45.0
 
March 26, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
March 25, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.4 μg/m3 (51) 51.0
 
March 25, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 15.8 μg/m3 (58) 58.0
 
March 25, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.7 μg/m3 (49) 49.0
 
March 25, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.9 μg/m3 (54) 54.0
 
March 25, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.9 μg/m3 (45) 45.0
 
March 25, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.9 μg/m3 (41) 41.0
 
March 25, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.4 μg/m3 (53) 53.0
 
March 25, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.1 μg/m3 (52) 52.0
 
March 25, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.6 μg/m3 (53) 53.0
 
March 25, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 17.8 μg/m3 (62) 62.0
 
March 25, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 15.3 μg/m3 (57) 57.0
 
March 25, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.4 μg/m3 (51) 51.0
 
March 25, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 15.6 μg/m3 (58) 58.0
 
March 25, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.7 μg/m3 (49) 49.0
 
March 25, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.6 μg/m3 (53) 53.0
 
March 25, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.5 μg/m3 (40) 40.0
 
March 25, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.9 μg/m3 (52) 52.0
 
March 25, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.9 μg/m3 (52) 52.0
 
March 25, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 14.9 μg/m3 (56) 56.0
 
March 25, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.7 μg/m3 (49) 49.0
 
March 25, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.9 μg/m3 (52) 52.0
 
March 25, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 16.1 μg/m3 (59) 59.0
 
March 25, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 15.6 μg/m3 (58) 58.0
 
March 25, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.9 μg/m3 (54) 54.0
 
March 24, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.9 μg/m3 (52) 52.0
 
March 24, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.4 μg/m3 (43) 43.0
 
March 24, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.7 μg/m3 (45) 45.0
 
March 24, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.5 μg/m3 (40) 40.0
 
March 24, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
March 24, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.5 μg/m3 (31) 31.0
 
March 24, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.1 μg/m3 (21) 21.0
 
March 24, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
March 24, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.2 μg/m3 (47) 47.0
 
March 24, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.4 μg/m3 (51) 51.0
 
March 24, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.7 μg/m3 (49) 49.0
 
March 24, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.3 μg/m3 (26) 26.0
 
March 24, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.2 μg/m3 (38) 38.0
 
March 24, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.4 μg/m3 (51) 51.0
 
March 24, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.7 μg/m3 (36) 36.0
 
March 24, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.7 μg/m3 (40) 40.0
 
March 24, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.4 μg/m3 (48) 48.0
 
March 24, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.7 μg/m3 (40) 40.0
 
March 24, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.4 μg/m3 (51) 51.0
 
March 24, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.5 μg/m3 (35) 35.0
 
March 24, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.5 μg/m3 (40) 40.0
 
March 24, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.5 μg/m3 (40) 40.0
 
March 24, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
March 24, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.5 μg/m3 (27) 27.0
 
March 23, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
March 23, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 14.6 μg/m3 (56) 56.0
 
March 23, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.7 μg/m3 (40) 40.0
 
March 23, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.8 μg/m3 (28) 28.0
 
March 23, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.7 μg/m3 (36) 36.0
 
March 23, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.4 μg/m3 (48) 48.0
 
March 23, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.7 μg/m3 (45) 45.0
 
March 23, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.6 μg/m3 (53) 53.0
 
March 23, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 15.1 μg/m3 (57) 57.0
 
March 23, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 16.6 μg/m3 (60) 60.0
 
March 23, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 19.7 μg/m3 (66) 66.0
 
March 23, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 14.4 μg/m3 (55) 55.0
 
March 23, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.9 μg/m3 (54) 54.0
 
March 23, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 16.1 μg/m3 (59) 59.0
 
March 23, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 19.7 μg/m3 (66) 66.0
 
March 23, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 21.7 μg/m3 (71) 71.0
 
March 23, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 22.2 μg/m3 (72) 72.0
 
March 23, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 15.3 μg/m3 (57) 57.0
 
March 23, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 18.8 μg/m3 (64) 64.0
 
March 23, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 18.8 μg/m3 (64) 64.0
 
March 23, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.2 μg/m3 (50) 50.0
 
March 23, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.3 μg/m3 (30) 30.0
 
March 23, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 16.1 μg/m3 (59) 59.0
 
March 23, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 19.5 μg/m3 (66) 66.0
 
March 22, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 30.6 μg/m3 (90) 90.0
 
March 22, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 29.9 μg/m3 (88) 88.0
 
March 22, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.4 μg/m3 (43) 43.0
 
March 22, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 16.6 μg/m3 (60) 60.0
 
March 22, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 19.5 μg/m3 (66) 66.0
 
March 22, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 18.5 μg/m3 (64) 64.0
 
March 22, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.4 μg/m3 (51) 51.0
 
March 22, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.2 μg/m3 (47) 47.0
 
March 22, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.7 μg/m3 (40) 40.0
 
March 22, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 14.1 μg/m3 (54) 54.0
 
March 22, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.5 μg/m3 (35) 35.0
 
March 22, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
March 22, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.2 μg/m3 (34) 34.0
 
March 22, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.7 μg/m3 (40) 40.0
 
March 22, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.9 μg/m3 (52) 52.0
 
March 22, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.6 μg/m3 (53) 53.0
 
March 22, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.7 μg/m3 (36) 36.0
 
March 22, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.7 μg/m3 (45) 45.0
 
March 22, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.7 μg/m3 (36) 36.0
 
March 22, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.2 μg/m3 (34) 34.0
 
March 22, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.2 μg/m3 (34) 34.0
 
March 22, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 15.6 μg/m3 (58) 58.0
 
March 22, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 14.1 μg/m3 (54) 54.0
 
March 22, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.9 μg/m3 (45) 45.0
 
March 21, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.9 μg/m3 (54) 54.0
 
March 21, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.9 μg/m3 (50) 50.0
 
March 21, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.4 μg/m3 (48) 48.0
 
March 21, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 14.1 μg/m3 (54) 54.0
 
March 21, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.7 μg/m3 (51) 51.0
 
March 21, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.5 μg/m3 (40) 40.0
 
March 21, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.5 μg/m3 (31) 31.0
 
March 21, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.9 μg/m3 (45) 45.0
 
March 21, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.7 μg/m3 (40) 40.0
 
March 21, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.3 μg/m3 (35) 35.0
 
March 21, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.7 μg/m3 (36) 36.0
 
March 21, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 15.6 μg/m3 (58) 58.0
 
March 21, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.9 μg/m3 (45) 45.0