ID: 265

AQSQID: 090011123

Site Name: Danbury

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

Updated: March 6, 2021, 4:32 a.m.

Location: Danbury (Germantown), CT

Reporting: True, Located: True

Current AQI: 37.0

Danbury (Germantown) CT, US: 41.4014, -73.4447

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Feb. 27, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.9 μg/m3 (15) 9.7 μg/m3 (41) 41.0
 
Feb. 27, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 8.6 μg/m3 (36) 36.0
 
Feb. 27, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.1 μg/m3 (15) 8.2 μg/m3 (35) 35.0
 
Feb. 27, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 19.1 μg/m3 (18) 9.0 μg/m3 (38) 38.0
 
Feb. 26, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.5 μg/m3 (19) 8.2 μg/m3 (35) 35.0
 
Feb. 26, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.6 μg/m3 (13) 6.8 μg/m3 (29) 29.0
 
Feb. 26, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.7 μg/m3 (12) 6.2 μg/m3 (26) 26.0
 
Feb. 26, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.2 μg/m3 (12) 5.7 μg/m3 (24) 24.0
 
Feb. 26, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.9 μg/m3 (9) 4.9 μg/m3 (21) 21.0
 
Feb. 26, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.7 μg/m3 (10) 5.4 μg/m3 (23) 23.0
 
Feb. 26, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 5.8 μg/m3 (25) 25.0
 
Feb. 26, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.4 μg/m3 (11) 5.7 μg/m3 (24) 24.0
 
Feb. 26, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 5.6 μg/m3 (24) 24.0
 
Feb. 26, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.5 μg/m3 (12) 5.9 μg/m3 (25) 25.0
 
Feb. 26, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.1 μg/m3 (15) 7.1 μg/m3 (30) 30.0
 
Feb. 26, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 25.2 μg/m3 (24) 9.5 μg/m3 (40) 40.0
 
Feb. 26, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.8 μg/m3 (26) 9.2 μg/m3 (39) 39.0
 
Feb. 26, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.3 μg/m3 (21) 7.0 μg/m3 (30) 30.0
 
Feb. 26, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.6 μg/m3 (13) 5.9 μg/m3 (25) 25.0
 
Feb. 26, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.1 μg/m3 (14) 7.0 μg/m3 (30) 30.0
 
Feb. 26, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.8 μg/m3 (13) 8.1 μg/m3 (34) 34.0
 
Feb. 26, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.6 μg/m3 (21) 13.6 μg/m3 (55) 55.0
 
Feb. 26, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.7 μg/m3 (19) 11.2 μg/m3 (47) 47.0
 
Feb. 26, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.4 μg/m3 (15) 7.3 μg/m3 (31) 31.0
 
Feb. 26, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.4 μg/m3 (10) 4.7 μg/m3 (20) 20.0
 
Feb. 26, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.5 μg/m3 (9) 4.1 μg/m3 (18) 18.0
 
Feb. 26, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.4 μg/m3 (10) 4.3 μg/m3 (18) 18.0
 
Feb. 26, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 13.7 μg/m3 (13) 5.0 μg/m3 (21) 21.0
 
Feb. 25, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.9 μg/m3 (13) 4.7 μg/m3 (20) 20.0
 
Feb. 25, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (11) 4.2 μg/m3 (18) 18.0
 
Feb. 25, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.7 μg/m3 (11) 3.7 μg/m3 (16) 16.0
 
Feb. 25, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.7 μg/m3 (9) 3.5 μg/m3 (15) 15.0
 
Feb. 25, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.2 μg/m3 (8) 3.1 μg/m3 (13) 13.0
 
Feb. 25, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.8 μg/m3 (9) 3.0 μg/m3 (13) 13.0
 
Feb. 25, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.8 μg/m3 (10) 2.9 μg/m3 (13) 13.0
 
Feb. 25, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.7 μg/m3 (8) 2.6 μg/m3 (11) 11.0
 
Feb. 25, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.2 μg/m3 (8) 2.4 μg/m3 (10) 10.0
 
Feb. 25, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.5 μg/m3 (7) 2.4 μg/m3 (10) 10.0
 
Feb. 25, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.6 μg/m3 (8) 2.5 μg/m3 (11) 11.0
 
Feb. 25, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Feb. 24, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.7 μg/m3 (10) 5.2 μg/m3 (22) 22.0
 
Feb. 24, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.4 μg/m3 (9) 5.2 μg/m3 (22) 22.0
 
Feb. 24, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (11) 5.9 μg/m3 (25) 25.0
 
Feb. 24, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 6.2 μg/m3 (26) 26.0
 
Feb. 24, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.4 μg/m3 (14) 7.3 μg/m3 (31) 31.0
 
Feb. 24, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.3 μg/m3 (13) 8.2 μg/m3 (35) 35.0
 
Feb. 24, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 7.7 μg/m3 (33) 33.0
 
Feb. 24, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.2 μg/m3 (11) 7.1 μg/m3 (30) 30.0
 
Feb. 24, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.9 μg/m3 (11) 6.8 μg/m3 (29) 29.0
 
Feb. 24, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.3 μg/m3 (10) 6.2 μg/m3 (26) 26.0
 
Feb. 24, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.2 μg/m3 (9) 5.8 μg/m3 (25) 25.0
 
Feb. 24, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.2 μg/m3 (9) 5.8 μg/m3 (25) 25.0
 
Feb. 24, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.6 μg/m3 (8) 5.1 μg/m3 (22) 22.0
 
Feb. 24, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.6 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
Feb. 24, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.3 μg/m3 (9) 5.9 μg/m3 (25) 25.0
 
Feb. 24, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.2 μg/m3 (9) 6.1 μg/m3 (26) 26.0
 
Feb. 24, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.9 μg/m3 (10) 6.9 μg/m3 (29) 29.0
 
Feb. 24, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 8.6 μg/m3 (36) 36.0
 
Feb. 24, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 12.3 μg/m3 (12) 9.2 μg/m3 (39) 39.0
 
Feb. 23, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.3 μg/m3 (14) 10.4 μg/m3 (44) 44.0
 
Feb. 23, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.9 μg/m3 (15) 12.2 μg/m3 (52) 52.0
 
Feb. 23, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.2 μg/m3 (16) 13.1 μg/m3 (54) 54.0
 
Feb. 23, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.1 μg/m3 (16) 13.1 μg/m3 (54) 54.0
 
Feb. 23, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.4 μg/m3 (15) 11.9 μg/m3 (50) 50.0
 
Feb. 23, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.6 μg/m3 (14) 11.5 μg/m3 (48) 48.0
 
Feb. 23, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.9 μg/m3 (15) 12.2 μg/m3 (52) 52.0
 
Feb. 23, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 11.3 μg/m3 (48) 48.0
 
Feb. 23, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.8 μg/m3 (14) 12.0 μg/m3 (50) 50.0
 
Feb. 23, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.7 μg/m3 (16) 13.2 μg/m3 (54) 54.0
 
Feb. 23, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.9 μg/m3 (17) 14.8 μg/m3 (57) 57.0
 
Feb. 23, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 15.9 μg/m3 (15) 13.1 μg/m3 (54) 54.0
 
Feb. 23, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.2 μg/m3 (15) 12.3 μg/m3 (52) 52.0
 
Feb. 23, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.8 μg/m3 (12) 10.4 μg/m3 (44) 44.0
 
Feb. 23, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.3 μg/m3 (12) 9.7 μg/m3 (41) 41.0
 
Feb. 23, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.5 μg/m3 (11) 9.2 μg/m3 (39) 39.0
 
Feb. 23, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.3 μg/m3 (11) 9.1 μg/m3 (38) 38.0
 
Feb. 23, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.3 μg/m3 (13) 10.9 μg/m3 (46) 46.0
 
Feb. 23, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.4 μg/m3 (14) 11.9 μg/m3 (50) 50.0
 
Feb. 23, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.9 μg/m3 (11) 8.8 μg/m3 (37) 37.0
 
Feb. 23, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.5 μg/m3 (11) 9.3 μg/m3 (39) 39.0
 
Feb. 23, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.4 μg/m3 (10) 8.0 μg/m3 (34) 34.0
 
Feb. 23, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.7 μg/m3 (9) 6.2 μg/m3 (26) 26.0
 
Feb. 23, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 6.2 μg/m3 (26) 26.0
 
Feb. 22, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.8 μg/m3 (9) 6.1 μg/m3 (26) 26.0
 
Feb. 22, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.9 μg/m3 (7) 4.5 μg/m3 (19) 19.0
 
Feb. 22, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 8.0 μg/m3 (34) 34.0
 
Feb. 22, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.3 μg/m3 (9) 5.6 μg/m3 (24) 24.0
 
Feb. 22, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.2 μg/m3 (6) 3.9 μg/m3 (17) 17.0
 
Feb. 22, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 3.5 μg/m3 (15) 15.0
 
Feb. 22, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.3 μg/m3 (10) 5.6 μg/m3 (24) 24.0
 
Feb. 22, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (16) 9.6 μg/m3 (40) 40.0
 
Feb. 22, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.8 μg/m3 (20) 12.9 μg/m3 (53) 53.0
 
Feb. 22, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.4 μg/m3 (20) 14.5 μg/m3 (57) 57.0
 
Feb. 22, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (21) 14.9 μg/m3 (57) 57.0
 
Feb. 22, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 22.1 μg/m3 (21) 16.0 μg/m3 (60) 60.0
 
Feb. 22, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.2 μg/m3 (24) 18.5 μg/m3 (65) 65.0
 
Feb. 22, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 42.2 μg/m3 (40) 29.5 μg/m3 (88) 88.0
 
Feb. 22, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 53.1 μg/m3 (50) 39.6 μg/m3 (112) 112.0
 
Feb. 22, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 52.5 μg/m3 (49) 37.3 μg/m3 (106) 106.0
 
Feb. 22, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 53.1 μg/m3 (50) 38.6 μg/m3 (109) 109.0
 
Feb. 22, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 49.9 μg/m3 (47) 36.3 μg/m3 (103) 103.0
 
Feb. 22, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 48.6 μg/m3 (45) 31.8 μg/m3 (93) 93.0
 
Feb. 22, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 37.3 μg/m3 (35) 24.7 μg/m3 (78) 78.0
 
Feb. 22, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 44.2 μg/m3 (41) 26.6 μg/m3 (82) 82.0
 
Feb. 22, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 46.6 μg/m3 (44) 25.7 μg/m3 (80) 80.0
 
Feb. 22, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 57.6 μg/m3 (53) 26.9 μg/m3 (83) 83.0
 
Feb. 22, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 43.2 μg/m3 (40) 19.2 μg/m3 (66) 66.0
 
Feb. 21, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.3 μg/m3 (28) 12.9 μg/m3 (53) 53.0
 
Feb. 21, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.2 μg/m3 (14) 5.1 μg/m3 (22) 22.0
 
Feb. 21, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.2 μg/m3 (11) 3.9 μg/m3 (17) 17.0
 
Feb. 21, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.4 μg/m3 (9) 3.6 μg/m3 (16) 16.0
 
Feb. 21, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.6 μg/m3 (10) 3.8 μg/m3 (16) 16.0
 
Feb. 21, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.6 μg/m3 (8) 3.4 μg/m3 (15) 15.0
 
Feb. 21, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.5 μg/m3 (9) 3.3 μg/m3 (14) 14.0
 
Feb. 21, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.8 μg/m3 (10) 3.2 μg/m3 (14) 14.0
 
Feb. 21, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.3 μg/m3 (11) 3.1 μg/m3 (13) 13.0
 
Feb. 21, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.2 μg/m3 (15) 4.2 μg/m3 (18) 18.0
 
Feb. 21, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.3 μg/m3 (15) 6.9 μg/m3 (29) 29.0
 
Feb. 21, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 15.3 μg/m3 (15) 8.8 μg/m3 (37) 37.0
 
Feb. 21, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.8 μg/m3 (14) 8.2 μg/m3 (35) 35.0
 
Feb. 21, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.6 μg/m3 (14) 8.4 μg/m3 (36) 36.0
 
Feb. 21, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.5 μg/m3 (14) 8.6 μg/m3 (36) 36.0
 
Feb. 21, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.9 μg/m3 (12) 6.6 μg/m3 (28) 28.0
 
Feb. 21, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.8 μg/m3 (12) 5.8 μg/m3 (25) 25.0
 
Feb. 21, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (13) 5.6 μg/m3 (24) 24.0
 
Feb. 21, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.6 μg/m3 (14) 5.6 μg/m3 (24) 24.0
 
Feb. 21, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.4 μg/m3 (14) 5.0 μg/m3 (21) 21.0
 
Feb. 21, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.3 μg/m3 (10) 3.9 μg/m3 (17) 17.0
 
Feb. 21, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.9 μg/m3 (9) 4.1 μg/m3 (18) 18.0
 
Feb. 21, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.9 μg/m3 (9) 4.6 μg/m3 (20) 20.0
 
Feb. 21, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 11.8 μg/m3 (11) 7.1 μg/m3 (30) 30.0
 
Feb. 20, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 7.1 μg/m3 (30) 30.0
 
Feb. 20, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.1 μg/m3 (13) 8.0 μg/m3 (34) 34.0
 
Feb. 20, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.6 μg/m3 (11) 6.4 μg/m3 (27) 27.0
 
Feb. 20, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.6 μg/m3 (12) 5.0 μg/m3 (21) 21.0
 
Feb. 20, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.1 μg/m3 (13) 7.5 μg/m3 (32) 32.0
 
Feb. 20, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.8 μg/m3 (14) 9.7 μg/m3 (41) 41.0
 
Feb. 20, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.5 μg/m3 (14) 9.0 μg/m3 (38) 38.0
 
Feb. 20, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.7 μg/m3 (14) 8.5 μg/m3 (36) 36.0
 
Feb. 20, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.2 μg/m3 (15) 8.3 μg/m3 (35) 35.0
 
Feb. 20, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.5 μg/m3 (10) 6.6 μg/m3 (28) 28.0
 
Feb. 20, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.2 μg/m3 (7) 4.8 μg/m3 (20) 20.0
 
Feb. 20, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 6.8 μg/m3 (7) 4.6 μg/m3 (20) 20.0
 
Feb. 20, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.2 μg/m3 (9) 6.4 μg/m3 (27) 27.0
 
Feb. 20, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.3 μg/m3 (14) 11.2 μg/m3 (47) 47.0
 
Feb. 20, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.9 μg/m3 (12) 9.7 μg/m3 (41) 41.0
 
Feb. 20, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.2 μg/m3 (11) 8.6 μg/m3 (36) 36.0
 
Feb. 20, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.8 μg/m3 (12) 9.9 μg/m3 (42) 42.0
 
Feb. 20, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 9.1 μg/m3 (38) 38.0
 
Feb. 20, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.4 μg/m3 (12) 8.8 μg/m3 (37) 37.0
 
Feb. 20, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (13) 9.5 μg/m3 (40) 40.0
 
Feb. 20, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.3 μg/m3 (15) 11.5 μg/m3 (48) 48.0
 
Feb. 20, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.6 μg/m3 (14) 9.3 μg/m3 (39) 39.0
 
Feb. 20, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.4 μg/m3 (13) 8.5 μg/m3 (36) 36.0
 
Feb. 20, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 12.8 μg/m3 (12) 7.6 μg/m3 (32) 32.0
 
Feb. 19, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.1 μg/m3 (13) 7.6 μg/m3 (32) 32.0
 
Feb. 19, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.6 μg/m3 (10) 6.6 μg/m3 (28) 28.0
 
Feb. 19, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.9 μg/m3 (10) 6.0 μg/m3 (25) 25.0
 
Feb. 19, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.7 μg/m3 (10) 5.9 μg/m3 (25) 25.0
 
Feb. 19, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.8 μg/m3 (10) 5.7 μg/m3 (24) 24.0
 
Feb. 19, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.5 μg/m3 (10) 5.7 μg/m3 (24) 24.0
 
Feb. 19, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.8 μg/m3 (10) 5.8 μg/m3 (25) 25.0
 
Feb. 19, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.3 μg/m3 (10) 5.8 μg/m3 (25) 25.0
 
Feb. 19, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.5 μg/m3 (11) 5.9 μg/m3 (25) 25.0
 
Feb. 19, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.7 μg/m3 (10) 5.3 μg/m3 (23) 23.0
 
Feb. 19, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.7 μg/m3 (9) 5.4 μg/m3 (23) 23.0
 
Feb. 19, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 10.2 μg/m3 (10) 5.7 μg/m3 (24) 24.0
 
Feb. 19, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.7 μg/m3 (9) 5.1 μg/m3 (22) 22.0