ID: 2962

AQSQID: 180890036

Site Name: Hammond-167th St

Added: April 21, 2020, 6:24 p.m.

Updated: Feb. 26, 2021, 3:33 p.m.

Location: Hammond (Roxana), IN

Reporting: True, Located: True

Current AQI: 64.0

Hammond (Roxana) IN, US: 41.594427, -87.495044

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Feb. 26, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 17.9 μg/m3 (64) 64.0
 
Feb. 26, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 15.5 μg/m3 (59) 59.0
 
Feb. 26, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 15.8 μg/m3 (59) 59.0
 
Feb. 26, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 16.8 μg/m3 (61) 61.0
 
Feb. 26, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (58) 58.0
 
Feb. 26, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 15.9 μg/m3 (59) 59.0
 
Feb. 26, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 16.4 μg/m3 (61) 61.0
 
Feb. 26, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 15.2 μg/m3 (58) 58.0
 
Feb. 26, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 14.4 μg/m3 (56) 56.0
 
Feb. 26, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.7 μg/m3 (55) 55.0
 
Feb. 26, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.4 μg/m3 (52) 52.0
 
Feb. 26, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.6 μg/m3 (55) 55.0
 
Feb. 26, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.6 μg/m3 (53) 53.0
 
Feb. 26, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.8 μg/m3 (50) 50.0
 
Feb. 26, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.5 μg/m3 (48) 48.0
 
Feb. 25, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.8 μg/m3 (50) 50.0
 
Feb. 25, 2021, 10 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
 
Feb. 25, 2021, 9 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
 
Feb. 25, 2021, 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
 
Feb. 25, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.3 μg/m3 (43) 43.0
 
Feb. 25, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.1 μg/m3 (43) 43.0
 
Feb. 25, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.4 μg/m3 (36) 36.0
 
Feb. 25, 2021, 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 (46) 46.0
 
Feb. 25, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 17.8 μg/m3 (63) 63.0
 
Feb. 25, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 23.1 μg/m3 (75) 75.0
 
Feb. 25, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 20.5 μg/m3 (69) 69.0
 
Feb. 25, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 16.5 μg/m3 (61) 61.0
 
Feb. 25, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.2 μg/m3 (52) 52.0
 
Feb. 25, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.3 μg/m3 (52) 52.0
 
Feb. 25, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.7 μg/m3 (53) 53.0
 
Feb. 25, 2021, 8 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
 
Feb. 25, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.8 μg/m3 (50) 50.0
 
Feb. 25, 2021, 6 a.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
 
Feb. 25, 2021, 5 a.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
 
Feb. 25, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.7 μg/m3 (41) 41.0
 
Feb. 25, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.9 μg/m3 (33) 33.0
 
Feb. 25, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.8 μg/m3 (29) 29.0
 
Feb. 25, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.9 μg/m3 (25) 25.0
 
Feb. 25, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.4 μg/m3 (19) 19.0
 
Feb. 24, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.5 μg/m3 (23) 23.0
 
Feb. 24, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.1 μg/m3 (38) 38.0
 
Feb. 24, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.5 μg/m3 (44) 44.0
 
Feb. 24, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.7 μg/m3 (53) 53.0
 
Feb. 24, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (53) 53.0
 
Feb. 24, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.3 μg/m3 (52) 52.0
 
Feb. 24, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.3 μg/m3 (52) 52.0
 
Feb. 24, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
Feb. 24, 2021, 3 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
 
Feb. 24, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.9 μg/m3 (33) 33.0
 
Feb. 24, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (30) 30.0
 
Feb. 24, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.4 μg/m3 (27) 27.0
 
Feb. 24, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.9 μg/m3 (25) 25.0
 
Feb. 24, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Feb. 24, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.6 μg/m3 (20) 20.0
 
Feb. 24, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.2 μg/m3 (18) 18.0
 
Feb. 24, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.9 μg/m3 (17) 17.0
 
Feb. 24, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.9 μg/m3 (17) 17.0
 
Feb. 24, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.4 μg/m3 (19) 19.0
 
Feb. 24, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.1 μg/m3 (22) 22.0
 
Feb. 24, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.3 μg/m3 (31) 31.0
 
Feb. 24, 2021, 2 a.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
 
Feb. 24, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.9 μg/m3 (33) 33.0
 
Feb. 24, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.6 μg/m3 (28) 28.0
 
Feb. 23, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.9 μg/m3 (29) 29.0
 
Feb. 23, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.3 μg/m3 (31) 31.0
 
Feb. 23, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.3 μg/m3 (27) 27.0
 
Feb. 23, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.4 μg/m3 (23) 23.0
 
Feb. 23, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.9 μg/m3 (25) 25.0
 
Feb. 23, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Feb. 23, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.6 μg/m3 (28) 28.0
 
Feb. 23, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.3 μg/m3 (27) 27.0
 
Feb. 23, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.7 μg/m3 (28) 28.0
 
Feb. 23, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.7 μg/m3 (33) 33.0
 
Feb. 23, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.6 μg/m3 (36) 36.0
 
Feb. 23, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.4 μg/m3 (44) 44.0
 
Feb. 23, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.5 μg/m3 (28) 28.0
 
Feb. 23, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.1 μg/m3 (26) 26.0
 
Feb. 23, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.7 μg/m3 (24) 24.0
 
Feb. 23, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.3 μg/m3 (23) 23.0
 
Feb. 23, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.2 μg/m3 (18) 18.0
 
Feb. 23, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.9 μg/m3 (17) 17.0
 
Feb. 23, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.3 μg/m3 (18) 18.0
 
Feb. 23, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Feb. 23, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.6 μg/m3 (36) 36.0
 
Feb. 23, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.8 μg/m3 (50) 50.0
 
Feb. 23, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 14.8 μg/m3 (57) 57.0
 
Feb. 22, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (60) 60.0
 
Feb. 22, 2021, 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 (60) 60.0
 
Feb. 22, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (60) 60.0
 
Feb. 22, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 17.4 μg/m3 (63) 63.0
 
Feb. 22, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 17.8 μg/m3 (63) 63.0
 
Feb. 22, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 22.6 μg/m3 (74) 74.0
 
Feb. 22, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (77) 77.0
 
Feb. 22, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 23.2 μg/m3 (75) 75.0
 
Feb. 22, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 24.8 μg/m3 (78) 78.0
 
Feb. 22, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 26.5 μg/m3 (82) 82.0
 
Feb. 22, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 27.4 μg/m3 (84) 84.0
 
Feb. 22, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 24.9 μg/m3 (78) 78.0
 
Feb. 22, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 23.7 μg/m3 (76) 76.0
 
Feb. 22, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 21.9 μg/m3 (72) 72.0
 
Feb. 22, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 16.8 μg/m3 (61) 61.0
 
Feb. 22, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.9 μg/m3 (55) 55.0
 
Feb. 22, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.7 μg/m3 (41) 41.0
 
Feb. 22, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.2 μg/m3 (22) 22.0
 
Feb. 22, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Feb. 22, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.1 μg/m3 (26) 26.0
 
Feb. 22, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.9 μg/m3 (29) 29.0
 
Feb. 22, 2021, 2 a.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
 
Feb. 22, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.2 μg/m3 (52) 52.0
 
Feb. 22, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
Feb. 21, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.2 μg/m3 (54) 54.0
 
Feb. 21, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.3 μg/m3 (54) 54.0
 
Feb. 21, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 14.5 μg/m3 (57) 57.0
 
Feb. 21, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (58) 58.0
 
Feb. 21, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 16.4 μg/m3 (61) 61.0
 
Feb. 21, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 16.7 μg/m3 (61) 61.0
 
Feb. 21, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 16.4 μg/m3 (61) 61.0
 
Feb. 21, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 17.7 μg/m3 (63) 63.0
 
Feb. 21, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 18.7 μg/m3 (65) 65.0
 
Feb. 21, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 21.4 μg/m3 (71) 71.0
 
Feb. 21, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (77) 77.0
 
Feb. 21, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 24.2 μg/m3 (77) 77.0
 
Feb. 21, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 27.2 μg/m3 (83) 83.0
 
Feb. 21, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 31.1 μg/m3 (91) 91.0
 
Feb. 21, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 31.6 μg/m3 (93) 93.0
 
Feb. 21, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 30.4 μg/m3 (90) 90.0
 
Feb. 21, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (89) 89.0
 
Feb. 21, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 31.0 μg/m3 (91) 91.0
 
Feb. 21, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 31.4 μg/m3 (92) 92.0
 
Feb. 21, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 31.0 μg/m3 (91) 91.0
 
Feb. 21, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 29.9 μg/m3 (89) 89.0
 
Feb. 21, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 31.6 μg/m3 (93) 93.0
 
Feb. 21, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 31.1 μg/m3 (91) 91.0
 
Feb. 21, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 25.8 μg/m3 (80) 80.0
 
Feb. 20, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (74) 74.0
 
Feb. 20, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 20.9 μg/m3 (70) 70.0
 
Feb. 20, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 22.3 μg/m3 (73) 73.0
 
Feb. 20, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 24.2 μg/m3 (77) 77.0
 
Feb. 20, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (79) 79.0
 
Feb. 20, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 23.3 μg/m3 (75) 75.0
 
Feb. 20, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 24.6 μg/m3 (78) 78.0
 
Feb. 20, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 26.7 μg/m3 (82) 82.0
 
Feb. 20, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 38.9 μg/m3 (110) 110.0
 
Feb. 20, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 43.5 μg/m3 (121) 121.0
 
Feb. 20, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 42.4 μg/m3 (118) 118.0
 
Feb. 20, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 42.9 μg/m3 (120) 120.0
 
Feb. 20, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 42.5 μg/m3 (119) 119.0
 
Feb. 20, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 41.8 μg/m3 (117) 117.0
 
Feb. 20, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 43.0 μg/m3 (120) 120.0
 
Feb. 20, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 42.8 μg/m3 (119) 119.0
 
Feb. 20, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 43.1 μg/m3 (120) 120.0
 
Feb. 20, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 43.3 μg/m3 (121) 121.0
 
Feb. 20, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 42.9 μg/m3 (120) 120.0
 
Feb. 20, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 38.8 μg/m3 (110) 110.0
 
Feb. 20, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 36.8 μg/m3 (105) 105.0
 
Feb. 20, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 37.5 μg/m3 (106) 106.0
 
Feb. 20, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 34.6 μg/m3 (99) 99.0
 
Feb. 20, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 32.2 μg/m3 (94) 94.0
 
Feb. 19, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 30.1 μg/m3 (89) 89.0
 
Feb. 19, 2021, 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 (89) 89.0
 
Feb. 19, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 26.7 μg/m3 (82) 82.0
 
Feb. 19, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 27.7 μg/m3 (84) 84.0
 
Feb. 19, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 27.7 μg/m3 (84) 84.0
 
Feb. 19, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 28.1 μg/m3 (85) 85.0
 
Feb. 19, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 28.3 μg/m3 (86) 86.0
 
Feb. 19, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 33.7 μg/m3 (97) 97.0
 
Feb. 19, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 40.6 μg/m3 (114) 114.0
 
Feb. 19, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 42.6 μg/m3 (119) 119.0