ID: 265

AQSQID: 090011123

Site Name: Danbury

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

Updated: July 30, 2021, 8 p.m.

Location: Danbury (Germantown), CT

Reporting: True, Located: True

Current AQI: 41.0

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
July 30, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 14.0 μg/m3 (13) 9.7 μg/m3 (41) 41.0
 
July 30, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 14.0 μg/m3 (13) 10.1 μg/m3 (43) 43.0
 
July 30, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 13.0 μg/m3 (13) 10.0 μg/m3 (42) 42.0
 
July 30, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 14.0 μg/m3 (13) 10.1 μg/m3 (43) 43.0
 
July 30, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 14.0 μg/m3 (13) 10.2 μg/m3 (43) 43.0
 
July 30, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 13.0 μg/m3 (13) 8.0 μg/m3 (34) 37.0
 
July 30, 2021, noon N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 12.0 μg/m3 (12) 6.1 μg/m3 (26) 34.0
 
July 30, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 10.0 μg/m3 (10) 5.1 μg/m3 (22) 27.0
 
July 30, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 12.0 μg/m3 (12) 5.1 μg/m3 (22) 22.0
 
July 30, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 10.0 μg/m3 (10) 5.3 μg/m3 (23) 33.0
 
July 30, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 20.0 μg/m3 (19) 14.0 μg/m3 (55) 55.0
 
July 30, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 23.0 μg/m3 (22) 15.8 μg/m3 (59) 59.0
 
July 30, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 22.0 μg/m3 (21) 15.9 μg/m3 (59) 59.0
 
July 30, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (18) 14.7 μg/m3 (57) 57.0
 
July 30, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 19.0 μg/m3 (18) 14.5 μg/m3 (57) 57.0
 
July 30, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 21.0 μg/m3 (20) 16.0 μg/m3 (60) 60.0
 
July 30, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 21.0 μg/m3 (20) 16.4 μg/m3 (61) 61.0
 
July 30, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 20.0 μg/m3 (19) 15.3 μg/m3 (58) 58.0
 
July 30, 2021, midnight N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 18.0 μg/m3 (17) 13.5 μg/m3 (54) 54.0
 
July 29, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 14.0 μg/m3 (13) 9.4 μg/m3 (40) 40.0
 
July 29, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 12.0 μg/m3 (12) 8.9 μg/m3 (38) 38.0
 
July 29, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 14.0 μg/m3 (13) 10.0 μg/m3 (42) 42.0
 
July 29, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 19.0 μg/m3 (18) 11.9 μg/m3 (50) 50.0
 
July 29, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 20.0 μg/m3 (19) 12.9 μg/m3 (53) 53.0
 
July 29, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 18.0 μg/m3 (17) 12.8 μg/m3 (53) 53.0
 
July 29, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 23.0 μg/m3 (22) 13.2 μg/m3 (54) 54.0
 
July 29, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 20.0 μg/m3 (19) 13.3 μg/m3 (54) 54.0
 
July 29, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 20.0 μg/m3 (19) 13.3 μg/m3 (54) 54.0
 
July 29, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 20.0 μg/m3 (19) 13.7 μg/m3 (55) 55.0
 
July 29, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 19.0 μg/m3 (18) 13.7 μg/m3 (55) 55.0
 
July 29, 2021, noon N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 21.0 μg/m3 (20) 13.9 μg/m3 (55) 55.0
 
July 29, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 20.0 μg/m3 (19) 14.8 μg/m3 (57) 57.0
 
July 29, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 21.0 μg/m3 (20) 15.4 μg/m3 (58) 58.0
 
July 29, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 22.0 μg/m3 (21) 16.1 μg/m3 (60) 60.0
 
July 29, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 20.0 μg/m3 (19) 15.1 μg/m3 (58) 58.0
 
July 29, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 19.0 μg/m3 (18) 13.7 μg/m3 (55) 55.0
 
July 29, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 17.0 μg/m3 (16) 13.0 μg/m3 (53) 53.0
 
July 29, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (17) 12.9 μg/m3 (53) 53.0
 
July 29, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 17.0 μg/m3 (16) 12.2 μg/m3 (52) 52.0
 
July 29, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 17.0 μg/m3 (16) 12.0 μg/m3 (50) 50.0
 
July 29, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 17.0 μg/m3 (16) 12.1 μg/m3 (51) 51.0
 
July 29, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 18.0 μg/m3 (17) 12.5 μg/m3 (52) 52.0
 
July 29, 2021, midnight N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 19.0 μg/m3 (18) 12.2 μg/m3 (52) 52.0
 
July 28, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 15.0 μg/m3 (14) 10.4 μg/m3 (44) 44.0
 
July 28, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 15.0 μg/m3 (14) 10.5 μg/m3 (44) 44.0
 
July 28, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 14.0 μg/m3 (13) 10.0 μg/m3 (42) 42.0
 
July 28, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 13.0 μg/m3 (13) 9.8 μg/m3 (41) 41.0
 
July 28, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 14.0 μg/m3 (13) 10.0 μg/m3 (42) 42.0
 
July 28, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 14.0 μg/m3 (13) 10.4 μg/m3 (44) 44.0
 
July 28, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 15.0 μg/m3 (14) 11.0 μg/m3 (46) 46.0
 
July 28, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 15.0 μg/m3 (14) 11.5 μg/m3 (48) 48.0
 
July 28, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 17.0 μg/m3 (16) 12.0 μg/m3 (50) 50.0
 
July 28, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 17.0 μg/m3 (16) 12.2 μg/m3 (52) 52.0
 
July 28, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 20.0 μg/m3 (19) 12.4 μg/m3 (52) 52.0
 
July 28, 2021, noon N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 19.0 μg/m3 (18) 13.3 μg/m3 (54) 54.0
 
July 28, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 19.0 μg/m3 (18) 13.5 μg/m3 (54) 54.0
 
July 28, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 22.0 μg/m3 (21) 15.0 μg/m3 (58) 58.0
 
July 28, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 21.0 μg/m3 (20) 15.7 μg/m3 (59) 59.0
 
July 28, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 19.0 μg/m3 (18) 15.0 μg/m3 (58) 58.0
 
July 28, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 20.0 μg/m3 (19) 15.3 μg/m3 (58) 58.0
 
July 28, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 20.0 μg/m3 (19) 15.0 μg/m3 (58) 58.0
 
July 28, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (19) 15.0 μg/m3 (58) 58.0
 
July 28, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 18.0 μg/m3 (17) 14.6 μg/m3 (57) 57.0
 
July 28, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 18.0 μg/m3 (17) 14.0 μg/m3 (55) 55.0
 
July 28, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 18.0 μg/m3 (17) 13.4 μg/m3 (54) 54.0
 
July 28, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 25.0 μg/m3 (24) 14.6 μg/m3 (57) 57.0
 
July 28, 2021, midnight N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 24.0 μg/m3 (23) 15.9 μg/m3 (59) 59.0
 
July 27, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A 35.0 μg/m3 (33) 24.0 μg/m3 (77) 77.0
 
July 27, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 72.0 ppb (102) N/A 41.0 μg/m3 (38) 29.5 μg/m3 (88) 102.0
 
July 27, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 99.0 ppb (116) N/A 44.0 μg/m3 (41) 32.1 μg/m3 (94) 116.0
 
July 27, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 95.0 ppb (114) N/A 43.0 μg/m3 (40) 30.7 μg/m3 (91) 114.0
 
July 27, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 75.0 ppb (104) N/A 37.0 μg/m3 (35) 25.3 μg/m3 (79) 104.0
 
July 27, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (91) N/A 35.0 μg/m3 (33) 24.8 μg/m3 (78) 91.0
 
July 27, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A 34.0 μg/m3 (32) 24.4 μg/m3 (77) 77.0
 
July 27, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A 34.0 μg/m3 (32) 23.2 μg/m3 (75) 75.0
 
July 27, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 35.0 μg/m3 (33) 23.0 μg/m3 (74) 74.0
 
July 27, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 39.0 μg/m3 (37) 26.9 μg/m3 (83) 83.0
 
July 27, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 51.0 μg/m3 (48) 35.8 μg/m3 (102) 102.0
 
July 27, 2021, noon N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A 61.0 μg/m3 (54) 47.2 μg/m3 (130) 130.0
 
July 27, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A 64.0 μg/m3 (56) 49.7 μg/m3 (136) 136.0
 
July 27, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 74.0 μg/m3 (61) 55.6 μg/m3 (152) 152.0
 
July 27, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 75.0 μg/m3 (61) 59.2 μg/m3 (153) 153.0
 
July 27, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A 70.0 μg/m3 (59) 56.0 μg/m3 (152) 152.0
 
July 27, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) N/A 66.0 μg/m3 (57) 53.5 μg/m3 (146) 146.0
 
July 27, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) N/A 70.0 μg/m3 (59) 56.1 μg/m3 (152) 152.0
 
July 27, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 69.0 μg/m3 (58) 57.2 μg/m3 (152) 152.0
 
July 27, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) N/A 78.0 μg/m3 (63) 64.0 μg/m3 (156) 156.0
 
July 27, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A 79.0 μg/m3 (63) 66.3 μg/m3 (157) 157.0
 
July 27, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A 82.0 μg/m3 (65) 67.6 μg/m3 (158) 158.0
 
July 27, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A 79.0 μg/m3 (63) 65.1 μg/m3 (156) 156.0
 
July 27, 2021, midnight N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 78.0 μg/m3 (63) 62.6 μg/m3 (155) 155.0
 
July 26, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 82.0 μg/m3 (65) 66.6 μg/m3 (157) 157.0
 
July 26, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A 64.0 μg/m3 (56) 51.9 μg/m3 (142) 142.0
 
July 26, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A 83.0 μg/m3 (65) 67.4 μg/m3 (158) 158.0
 
July 26, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A 81.0 μg/m3 (64) 65.8 μg/m3 (157) 157.0
 
July 26, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A 63.0 μg/m3 (55) 50.0 μg/m3 (137) 137.0
 
July 26, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A 39.0 μg/m3 (37) 31.0 μg/m3 (91) 91.0
 
July 26, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A 40.0 μg/m3 (38) 29.1 μg/m3 (87) 87.0
 
July 26, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A 40.0 μg/m3 (38) 30.0 μg/m3 (89) 89.0
 
July 26, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 37.0 μg/m3 (35) 28.5 μg/m3 (86) 86.0
 
July 26, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 35.0 μg/m3 (33) 27.9 μg/m3 (85) 85.0
 
July 26, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 37.0 μg/m3 (35) 29.2 μg/m3 (87) 87.0
 
July 26, 2021, noon N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A 19.0 μg/m3 (18) 12.6 μg/m3 (53) 53.0
 
July 26, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) N/A 23.0 μg/m3 (22) 9.6 μg/m3 (40) 40.0
 
July 26, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A 14.0 μg/m3 (13) 8.5 μg/m3 (36) 36.0
 
July 26, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A 13.0 μg/m3 (13) 8.3 μg/m3 (35) 35.0
 
July 26, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 12.0 μg/m3 (12) 7.7 μg/m3 (33) 33.0
 
July 26, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 11.0 μg/m3 (11) 7.4 μg/m3 (31) 31.0
 
July 26, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 11.0 μg/m3 (11) 7.8 μg/m3 (33) 33.0
 
July 26, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (13) 9.6 μg/m3 (40) 40.0
 
July 26, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 15.0 μg/m3 (14) 10.6 μg/m3 (45) 45.0
 
July 26, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 16.0 μg/m3 (15) 11.2 μg/m3 (47) 47.0
 
July 26, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 19.0 μg/m3 (18) 12.6 μg/m3 (53) 53.0
 
July 26, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 21.0 μg/m3 (20) 13.1 μg/m3 (54) 54.0
 
July 26, 2021, midnight N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 21.0 μg/m3 (20) 13.8 μg/m3 (55) 55.0
 
July 25, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 22.0 μg/m3 (21) 14.6 μg/m3 (57) 57.0
 
July 25, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 21.0 μg/m3 (20) 15.1 μg/m3 (58) 58.0
 
July 25, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 20.0 μg/m3 (19) 14.6 μg/m3 (57) 57.0
 
July 25, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 19.0 μg/m3 (18) 13.9 μg/m3 (55) 55.0
 
July 25, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 21.0 μg/m3 (20) 14.6 μg/m3 (57) 57.0
 
July 25, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 21.0 μg/m3 (20) 14.2 μg/m3 (56) 56.0
 
July 25, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 22.0 μg/m3 (21) 13.8 μg/m3 (55) 55.0
 
July 25, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 21.0 μg/m3 (20) 13.1 μg/m3 (54) 54.0
 
July 25, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 21.0 μg/m3 (20) 13.0 μg/m3 (53) 53.0
 
July 25, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 20.0 μg/m3 (19) 12.8 μg/m3 (53) 53.0
 
July 25, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 20.0 μg/m3 (19) 13.2 μg/m3 (54) 54.0
 
July 25, 2021, noon N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 17.0 μg/m3 (16) 12.6 μg/m3 (53) 53.0
 
July 25, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 16.0 μg/m3 (15) 12.0 μg/m3 (50) 50.0
 
July 25, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 16.0 μg/m3 (15) 12.2 μg/m3 (52) 52.0
 
July 25, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 17.0 μg/m3 (16) 13.2 μg/m3 (54) 54.0
 
July 25, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 18.0 μg/m3 (17) 13.1 μg/m3 (54) 54.0
 
July 25, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 18.0 μg/m3 (17) 12.5 μg/m3 (52) 52.0
 
July 25, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 16.0 μg/m3 (15) 11.2 μg/m3 (47) 47.0
 
July 25, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 10.7 μg/m3 (45) 45.0
 
July 25, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 17.0 μg/m3 (16) 10.6 μg/m3 (45) 45.0
 
July 25, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 16.0 μg/m3 (15) 11.0 μg/m3 (46) 46.0
 
July 25, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 17.0 μg/m3 (16) 11.0 μg/m3 (46) 46.0
 
July 25, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 17.0 μg/m3 (16) 10.8 μg/m3 (46) 46.0
 
July 25, 2021, midnight N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 17.0 μg/m3 (16) 10.9 μg/m3 (46) 46.0
 
July 24, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 15.0 μg/m3 (14) 9.3 μg/m3 (39) 39.0
 
July 24, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 14.0 μg/m3 (13) 8.9 μg/m3 (38) 38.0
 
July 24, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 14.0 μg/m3 (13) 9.5 μg/m3 (40) 40.0
 
July 24, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 15.0 μg/m3 (14) 9.7 μg/m3 (41) 41.0
 
July 24, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 13.0 μg/m3 (13) 8.4 μg/m3 (36) 37.0
 
July 24, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 12.0 μg/m3 (12) 8.1 μg/m3 (34) 35.0
 
July 24, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 15.0 μg/m3 (14) 8.1 μg/m3 (34) 34.0
 
July 24, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 12.0 μg/m3 (12) 7.5 μg/m3 (32) 32.0
 
July 24, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 11.0 μg/m3 (11) 7.3 μg/m3 (31) 31.0
 
July 24, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 13.0 μg/m3 (13) 7.5 μg/m3 (32) 32.0
 
July 24, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 16.0 μg/m3 (15) 8.5 μg/m3 (36) 36.0
 
July 24, 2021, noon N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A 20.0 μg/m3 (19) 10.0 μg/m3 (42) 42.0
 
July 24, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) N/A 17.0 μg/m3 (16) 10.3 μg/m3 (43) 43.0
 
July 24, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 16.0 μg/m3 (15) 10.4 μg/m3 (44) 44.0
 
July 24, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 17.0 μg/m3 (16) 10.7 μg/m3 (45) 45.0
 
July 24, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 16.0 μg/m3 (15) 10.5 μg/m3 (44) 44.0
 
July 24, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 17.0 μg/m3 (16) 10.7 μg/m3 (45) 45.0
 
July 24, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) N/A 15.0 μg/m3 (14) 9.4 μg/m3 (40) 40.0
 
July 24, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 9.6 μg/m3 (40) 40.0
 
July 24, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) N/A 16.0 μg/m3 (15) 10.5 μg/m3 (44) 44.0
 
July 24, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) N/A 17.0 μg/m3 (16) 10.6 μg/m3 (45) 45.0
 
July 24, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) N/A 17.0 μg/m3 (16) 10.8 μg/m3 (46) 46.0
 
July 24, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A 16.0 μg/m3 (15) 9.9 μg/m3 (42) 42.0
 
July 24, 2021, midnight N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 13.0 μg/m3 (13) 8.9 μg/m3 (38) 38.0
 
July 23, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 13.0 μg/m3 (13) 8.5 μg/m3 (36) 36.0
 
July 23, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 12.0 μg/m3 (12) 7.9 μg/m3 (33) 33.0
 
July 23, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 13.0 μg/m3 (13) 8.3 μg/m3 (35) 35.0
 
July 23, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 13.0 μg/m3 (13) 8.2 μg/m3 (35) 35.0
 
July 23, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 13.0 μg/m3 (13) 8.3 μg/m3 (35) 35.0