AQSQID: 090011123

Site Name: Danbury

Location: Danbury, CT

Reporting: True, Located: True

Current AQI: 40.0

Danbury CT, US: 41.4014, -73.4447

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 21, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 15.0 μg/m3 (14) 9.6 μg/m3 (40) 40.0
 
July 21, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 15.0 μg/m3 (14) 9.9 μg/m3 (41) 41.0
 
July 21, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 16.0 μg/m3 (15) 10.0 μg/m3 (42) 42.0
 
July 21, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 15.0 μg/m3 (14) 9.6 μg/m3 (40) 40.0
 
July 21, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 14.0 μg/m3 (13) 9.1 μg/m3 (38) 38.0
 
July 21, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 13.0 μg/m3 (12) 8.4 μg/m3 (35) 35.0
 
July 21, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 7.8 μg/m3 (32) 32.0
 
July 21, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 13.0 μg/m3 (12) 7.7 μg/m3 (32) 32.0
 
July 21, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 13.0 μg/m3 (12) 7.8 μg/m3 (32) 32.0
 
July 21, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 14.0 μg/m3 (13) 7.9 μg/m3 (33) 33.0
 
July 21, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 14.0 μg/m3 (13) 8.9 μg/m3 (37) 37.0
 
July 21, 2019, midnight N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 15.0 μg/m3 (14) 9.0 μg/m3 (38) 38.0
 
July 20, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 15.0 μg/m3 (14) 9.2 μg/m3 (38) 38.0
 
July 20, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 15.0 μg/m3 (14) 9.2 μg/m3 (38) 39.0
 
July 20, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A 17.0 μg/m3 (15) 9.6 μg/m3 (40) 41.0
 
July 20, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A 16.0 μg/m3 (15) 9.8 μg/m3 (41) 41.0
 
July 20, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 17.0 μg/m3 (15) 10.0 μg/m3 (42) 42.0
 
July 20, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 16.0 μg/m3 (15) 10.3 μg/m3 (43) 43.0
 
July 20, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 17.0 μg/m3 (15) 10.1 μg/m3 (42) 42.0
 
July 20, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 17.0 μg/m3 (15) 10.4 μg/m3 (43) 43.0
 
July 20, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 18.0 μg/m3 (16) 10.5 μg/m3 (44) 44.0
 
July 20, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 17.0 μg/m3 (15) 10.0 μg/m3 (42) 42.0
 
July 20, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 16.0 μg/m3 (15) 9.5 μg/m3 (40) 40.0
 
July 20, 2019, noon N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 15.0 μg/m3 (14) 9.0 μg/m3 (38) 38.0
 
July 20, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 15.0 μg/m3 (14) 9.3 μg/m3 (39) 39.0
 
July 20, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 16.0 μg/m3 (15) 10.0 μg/m3 (42) 42.0
 
July 20, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 17.0 μg/m3 (15) 10.8 μg/m3 (45) 45.0
 
July 20, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 16.0 μg/m3 (15) 10.6 μg/m3 (44) 44.0
 
July 20, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 18.0 μg/m3 (16) 12.2 μg/m3 (50) 50.0
 
July 20, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 20.0 μg/m3 (18) 12.8 μg/m3 (52) 52.0
 
July 20, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 13.4 μg/m3 (53) 53.0
 
July 20, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 20.0 μg/m3 (18) 13.0 μg/m3 (52) 52.0
 
July 20, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 20.0 μg/m3 (18) 12.6 μg/m3 (51) 51.0
 
July 20, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 20.0 μg/m3 (18) 13.3 μg/m3 (53) 53.0
 
July 20, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A 22.0 μg/m3 (20) 13.9 μg/m3 (54) 54.0
 
July 20, 2019, midnight N/A N/A N/A N/A N/A N/A 67.0 ppb (52) N/A 20.0 μg/m3 (18) 13.5 μg/m3 (53) 53.0
 
July 19, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 76.0 ppb (59) N/A 20.0 μg/m3 (18) 12.5 μg/m3 (51) 59.0
 
July 19, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (52) N/A 17.0 μg/m3 (15) 10.9 μg/m3 (45) 52.0
 
July 19, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 75.0 ppb (58) N/A 19.0 μg/m3 (17) 11.3 μg/m3 (47) 58.0
 
July 19, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 73.0 ppb (57) N/A 19.0 μg/m3 (17) 11.5 μg/m3 (48) 57.0
 
July 19, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (48) N/A 17.0 μg/m3 (15) 9.7 μg/m3 (40) 48.0
 
July 19, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A 15.0 μg/m3 (14) 9.1 μg/m3 (38) 44.0
 
July 19, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A 14.0 μg/m3 (13) 8.7 μg/m3 (36) 41.0
 
July 19, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 13.0 μg/m3 (12) 8.1 μg/m3 (34) 37.0
 
July 19, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 13.0 μg/m3 (12) 7.5 μg/m3 (31) 31.0
 
July 19, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 13.0 μg/m3 (12) 7.5 μg/m3 (31) 31.0
 
July 19, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 12.0 μg/m3 (11) 6.7 μg/m3 (28) 28.0
 
July 19, 2019, noon N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 16.0 μg/m3 (15) 8.2 μg/m3 (34) 34.0
 
July 19, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 18.0 μg/m3 (16) 9.2 μg/m3 (38) 38.0
 
July 19, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 19.0 μg/m3 (17) 9.2 μg/m3 (38) 38.0
 
July 19, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 18.0 μg/m3 (16) 8.8 μg/m3 (37) 37.0
 
July 19, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 17.0 μg/m3 (15) 8.6 μg/m3 (36) 36.0
 
July 19, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 16.0 μg/m3 (15) 8.3 μg/m3 (35) 35.0
 
July 19, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 16.0 μg/m3 (15) 8.6 μg/m3 (36) 36.0
 
July 19, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 9.3 μg/m3 (39) 39.0
 
July 19, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 19.0 μg/m3 (17) 9.2 μg/m3 (38) 38.0
 
July 19, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 18.0 μg/m3 (16) 9.1 μg/m3 (38) 38.0
 
July 19, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 19.0 μg/m3 (17) 9.7 μg/m3 (40) 40.0
 
July 19, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 20.0 μg/m3 (18) 10.4 μg/m3 (43) 43.0
 
July 19, 2019, midnight N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 21.0 μg/m3 (19) 11.5 μg/m3 (48) 48.0
 
July 18, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 17.0 μg/m3 (15) 10.7 μg/m3 (45) 45.0
 
July 18, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 16.0 μg/m3 (15) 9.8 μg/m3 (41) 41.0
 
July 18, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 18.0 μg/m3 (16) 10.5 μg/m3 (44) 44.0
 
July 18, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 19.0 μg/m3 (17) 11.5 μg/m3 (48) 48.0
 
July 18, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 17.0 μg/m3 (15) 9.6 μg/m3 (40) 40.0
 
July 18, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 12.0 μg/m3 (11) 7.5 μg/m3 (31) 31.0
 
July 18, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 15.0 μg/m3 (14) 8.3 μg/m3 (35) 35.0
 
July 18, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 15.0 μg/m3 (14) 7.8 μg/m3 (32) 32.0
 
July 18, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 12.0 μg/m3 (11) 6.3 μg/m3 (26) 26.0
 
July 18, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 14.0 μg/m3 (13) 6.8 μg/m3 (28) 28.0
 
July 18, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 11.0 μg/m3 (10) 5.2 μg/m3 (22) 22.0
 
July 18, 2019, noon N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 13.0 μg/m3 (12) 6.1 μg/m3 (25) 25.0
 
July 18, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A 16.0 μg/m3 (15) 6.6 μg/m3 (28) 28.0
 
July 18, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A 14.0 μg/m3 (13) 5.8 μg/m3 (24) 24.0
 
July 18, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 14.0 μg/m3 (13) 5.8 μg/m3 (24) 24.0
 
July 18, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A 19.0 μg/m3 (17) 6.8 μg/m3 (28) 28.0
 
July 18, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 16.0 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
July 18, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 14.0 μg/m3 (13) 5.5 μg/m3 (23) 23.0
 
July 18, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 5.3 μg/m3 (22) 22.0
 
July 18, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 15.0 μg/m3 (14) 5.2 μg/m3 (22) 22.0
 
July 18, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 14.0 μg/m3 (13) 5.5 μg/m3 (23) 25.0
 
July 18, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 12.0 μg/m3 (11) 4.7 μg/m3 (20) 28.0
 
July 18, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 13.0 μg/m3 (12) 6.1 μg/m3 (25) 25.0
 
July 18, 2019, midnight N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 11.0 μg/m3 (10) 5.8 μg/m3 (24) 24.0
 
July 17, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 14.0 μg/m3 (13) 6.8 μg/m3 (28) 28.0
 
July 17, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 18.0 μg/m3 (16) 9.0 μg/m3 (38) 38.0
 
July 17, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (47) N/A 27.0 μg/m3 (25) 15.1 μg/m3 (57) 57.0
 
July 17, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 24.0 μg/m3 (22) 12.8 μg/m3 (52) 52.0
 
July 17, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A 24.0 μg/m3 (22) 12.9 μg/m3 (52) 52.0
 
July 17, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A 24.0 μg/m3 (22) 12.7 μg/m3 (51) 51.0
 
July 17, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 22.0 μg/m3 (20) 10.8 μg/m3 (45) 45.0
 
July 17, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A 25.0 μg/m3 (23) 11.3 μg/m3 (47) 47.0
 
July 17, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A 26.0 μg/m3 (24) 12.3 μg/m3 (51) 51.0
 
July 17, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A 22.0 μg/m3 (20) 11.9 μg/m3 (50) 50.0
 
July 17, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 19.0 μg/m3 (17) 11.0 μg/m3 (46) 46.0
 
July 17, 2019, noon N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 21.0 μg/m3 (19) 11.2 μg/m3 (47) 47.0
 
July 17, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 24.0 μg/m3 (22) 11.9 μg/m3 (50) 50.0
 
July 17, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 29.0 μg/m3 (26) 12.6 μg/m3 (51) 51.0
 
July 17, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 21.0 μg/m3 (19) 12.0 μg/m3 (50) 50.0
 
July 17, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 17.0 μg/m3 (15) 11.1 μg/m3 (46) 46.0
 
July 17, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 17.0 μg/m3 (15) 10.7 μg/m3 (45) 45.0
 
July 17, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 20.0 μg/m3 (18) 11.6 μg/m3 (48) 48.0
 
July 17, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 11.4 μg/m3 (48) 48.0
 
July 17, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 18.0 μg/m3 (16) 11.3 μg/m3 (47) 47.0
 
July 17, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 19.0 μg/m3 (17) 11.2 μg/m3 (47) 47.0
 
July 17, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A 21.0 μg/m3 (19) 11.4 μg/m3 (48) 48.0
 
July 17, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (49) N/A 21.0 μg/m3 (19) 11.7 μg/m3 (49) 49.0
 
July 17, 2019, midnight N/A N/A N/A N/A N/A N/A 74.0 ppb (57) N/A 23.0 μg/m3 (21) 12.8 μg/m3 (52) 57.0
 
July 16, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 77.0 ppb (60) N/A 23.0 μg/m3 (21) 11.8 μg/m3 (49) 60.0
 
July 16, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 77.0 ppb (60) N/A 20.0 μg/m3 (18) 10.4 μg/m3 (43) 60.0
 
July 16, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 76.0 ppb (59) N/A 21.0 μg/m3 (19) 9.8 μg/m3 (41) 59.0
 
July 16, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 76.0 ppb (59) N/A 21.0 μg/m3 (19) 10.2 μg/m3 (42) 59.0
 
July 16, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 76.0 ppb (59) N/A 21.0 μg/m3 (19) 9.8 μg/m3 (41) 59.0
 
July 16, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 81.0 ppb (63) N/A 22.0 μg/m3 (20) 9.5 μg/m3 (40) 63.0
 
July 16, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 75.0 ppb (58) N/A 20.0 μg/m3 (18) 9.3 μg/m3 (39) 58.0
 
July 16, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A 17.0 μg/m3 (15) 8.0 μg/m3 (33) 45.0
 
July 16, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 25.0 μg/m3 (23) 8.0 μg/m3 (33) 37.0
 
July 16, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 23.0 μg/m3 (21) 7.4 μg/m3 (31) 32.0
 
July 16, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 18.0 μg/m3 (16) 7.9 μg/m3 (33) 33.0
 
July 16, 2019, noon N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 19.0 μg/m3 (17) 7.8 μg/m3 (32) 32.0
 
July 16, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A 22.0 μg/m3 (20) 8.5 μg/m3 (35) 35.0
 
July 16, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 18.0 μg/m3 (16) 8.3 μg/m3 (35) 35.0
 
July 16, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 12.0 μg/m3 (11) 7.3 μg/m3 (30) 30.0
 
July 16, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A 13.0 μg/m3 (12) 7.5 μg/m3 (31) 31.0
 
July 16, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A 14.0 μg/m3 (13) 7.5 μg/m3 (31) 31.0
 
July 16, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A 14.0 μg/m3 (13) 7.7 μg/m3 (32) 32.0
 
July 16, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 7.4 μg/m3 (31) 31.0
 
July 16, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) N/A 13.0 μg/m3 (12) 7.6 μg/m3 (32) 32.0
 
July 16, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 14.0 μg/m3 (13) 7.6 μg/m3 (32) 32.0
 
July 16, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 14.0 μg/m3 (13) 7.6 μg/m3 (32) 32.0
 
July 16, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 12.0 μg/m3 (11) 5.9 μg/m3 (25) 25.0
 
July 16, 2019, midnight N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 13.0 μg/m3 (12) 6.0 μg/m3 (25) 25.0
 
July 15, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 13.0 μg/m3 (12) 5.1 μg/m3 (21) 25.0
 
July 15, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 13.0 μg/m3 (12) 4.9 μg/m3 (20) 33.0
 
July 15, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 9.0 μg/m3 (8) 4.7 μg/m3 (20) 33.0
 
July 15, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 11.0 μg/m3 (10) 4.5 μg/m3 (19) 34.0
 
July 15, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 13.0 μg/m3 (12) 4.8 μg/m3 (20) 36.0
 
July 15, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 4.7 μg/m3 (20) 20.0
 
July 15, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 4.9 μg/m3 (20) 20.0
 
July 15, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 4.5 μg/m3 (19) 19.0
 
July 15, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
July 15, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 4.6 μg/m3 (19) 19.0
 
July 15, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 4.9 μg/m3 (20) 20.0
 
July 15, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 4.7 μg/m3 (20) 20.0
 
July 15, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 5.9 μg/m3 (25) 25.0
 
July 15, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A 17.0 μg/m3 (15) 6.3 μg/m3 (26) 26.0
 
July 15, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A 11.0 μg/m3 (10) 5.6 μg/m3 (23) 23.0
 
July 15, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 10.0 μg/m3 (9) 5.4 μg/m3 (23) 23.0
 
July 15, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 9.0 μg/m3 (8) 5.4 μg/m3 (23) 23.0
 
July 15, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 10.0 μg/m3 (9) 5.4 μg/m3 (23) 23.0
 
July 15, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 5.5 μg/m3 (23) 23.0
 
July 15, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 11.0 μg/m3 (10) 5.5 μg/m3 (23) 23.0
 
July 15, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 11.0 μg/m3 (10) 6.2 μg/m3 (26) 26.0
 
July 15, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 12.0 μg/m3 (11) 6.7 μg/m3 (28) 28.0
 
July 15, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 13.0 μg/m3 (12) 7.3 μg/m3 (30) 30.0
 
July 15, 2019, midnight N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 13.0 μg/m3 (12) 7.0 μg/m3 (29) 29.0
 
July 14, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 13.0 μg/m3 (12) 7.2 μg/m3 (30) 30.0
 
July 14, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 13.0 μg/m3 (12) 7.1 μg/m3 (30) 30.0
 
July 14, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 13.0 μg/m3 (12) 7.1 μg/m3 (30) 30.0
 
July 14, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 15.0 μg/m3 (14) 7.8 μg/m3 (32) 32.0
 
July 14, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 14.0 μg/m3 (13) 8.2 μg/m3 (34) 34.0
 
July 14, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 15.0 μg/m3 (14) 8.6 μg/m3 (36) 36.0
 
July 14, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 17.0 μg/m3 (15) 9.9 μg/m3 (41) 41.0
 
July 14, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 16.0 μg/m3 (15) 9.5 μg/m3 (40) 40.0
 
July 14, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A 16.0 μg/m3 (15) 9.5 μg/m3 (40) 42.0
 
July 14, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 16.0 μg/m3 (15) 8.9 μg/m3 (37) 38.0
 
July 14, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 17.0 μg/m3 (15) 9.0 μg/m3 (38) 38.0
 
July 14, 2019, noon N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 15.0 μg/m3 (14) 8.9 μg/m3 (37) 37.0