ID: 265

AQSQID: 090011123

Site Name: Danbury

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

Updated: June 25, 2022, 7:39 p.m.

Location: Danbury (Germantown), CT

Reporting: True, Located: True

Current AQI: 38.0

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
June 25, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 12.0 μg/m3 (12) 7.2 μg/m3 (31) 38.0
 
June 25, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 13.0 μg/m3 (13) 7.0 μg/m3 (30) 38.0
 
June 25, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 13.0 μg/m3 (13) 7.0 μg/m3 (30) 38.0
 
June 25, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 13.0 μg/m3 (13) 7.5 μg/m3 (32) 38.0
 
June 25, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 13.0 μg/m3 (13) 7.5 μg/m3 (32) 38.0
 
June 25, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 12.0 μg/m3 (12) 7.4 μg/m3 (31) 37.0
 
June 25, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 12.0 μg/m3 (12) 7.4 μg/m3 (31) 37.0
 
June 25, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 12.0 μg/m3 (12) 7.4 μg/m3 (31) 37.0
 
June 25, 2022, 2 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) 7.4 μg/m3 (31) 37.0
 
June 25, 2022, 2 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) 7.4 μg/m3 (31) 37.0
 
June 25, 2022, 2 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) 7.4 μg/m3 (31) 37.0
 
June 25, 2022, 2 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) 7.4 μg/m3 (31) 37.0
 
June 25, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 13.0 μg/m3 (13) 7.6 μg/m3 (32) 33.0
 
June 25, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 13.0 μg/m3 (13) 7.6 μg/m3 (32) 33.0
 
June 25, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 13.0 μg/m3 (13) 7.6 μg/m3 (32) 33.0
 
June 25, 2022, noon N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 14.0 μg/m3 (13) 8.4 μg/m3 (36) 36.0
 
June 25, 2022, noon N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 14.0 μg/m3 (13) 8.4 μg/m3 (36) 36.0
 
June 25, 2022, noon N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 14.0 μg/m3 (13) 8.4 μg/m3 (36) 36.0
 
June 25, 2022, 11 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A 26.0 μg/m3 (25) 11.4 μg/m3 (48) 48.0
 
June 25, 2022, 11 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A 26.0 μg/m3 (25) 11.4 μg/m3 (48) 48.0
 
June 25, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) N/A 23.0 μg/m3 (22) 10.1 μg/m3 (43) 43.0
 
June 25, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 14.0 μg/m3 (13) 9.6 μg/m3 (40) 40.0
 
June 25, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 16.0 μg/m3 (15) 9.6 μg/m3 (40) 40.0
 
June 25, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 17.0 μg/m3 (16) 9.2 μg/m3 (39) 47.0
 
June 25, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 17.0 μg/m3 (16) 9.2 μg/m3 (39) 47.0
 
June 25, 2022, midnight N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A 17.0 μg/m3 (16) 8.7 μg/m3 (37) 48.0
 
June 24, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A 12.0 μg/m3 (12) 6.2 μg/m3 (26) 48.0
 
June 24, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 12.0 μg/m3 (12) 6.0 μg/m3 (25) 47.0
 
June 24, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 11.0 μg/m3 (11) 5.6 μg/m3 (24) 47.0
 
June 24, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A 11.0 μg/m3 (11) 5.6 μg/m3 (24) 48.0
 
June 24, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A 11.0 μg/m3 (11) 5.6 μg/m3 (24) 48.0
 
June 24, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 12.0 μg/m3 (12) 6.1 μg/m3 (26) 43.0
 
June 24, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 12.0 μg/m3 (12) 6.4 μg/m3 (27) 39.0
 
June 24, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 13.0 μg/m3 (13) 7.1 μg/m3 (30) 30.0
 
June 24, 2022, noon N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 14.0 μg/m3 (13) 7.7 μg/m3 (33) 33.0
 
June 24, 2022, 11 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) N/A 14.0 μg/m3 (13) 7.6 μg/m3 (32) 32.0
 
June 24, 2022, 11 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) N/A 14.0 μg/m3 (13) 7.6 μg/m3 (32) 32.0
 
June 24, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 13.0 μg/m3 (13) 7.1 μg/m3 (30) 30.0
 
June 24, 2022, 8 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A 9.0 μg/m3 (9) 5.2 μg/m3 (22) 22.0
 
June 24, 2022, 7 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) N/A 10.0 μg/m3 (10) 5.3 μg/m3 (23) 23.0
 
June 24, 2022, 6 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A 10.0 μg/m3 (10) 5.6 μg/m3 (24) 24.0
 
June 24, 2022, 6 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A 10.0 μg/m3 (10) 5.6 μg/m3 (24) 24.0
 
June 24, 2022, 4 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 11.0 μg/m3 (11) 5.7 μg/m3 (24) 24.0
 
June 24, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 13.0 μg/m3 (13) 7.0 μg/m3 (30) 30.0
 
June 24, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 14.0 μg/m3 (13) 7.2 μg/m3 (31) 31.0
 
June 24, 2022, midnight N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 13.0 μg/m3 (13) 6.7 μg/m3 (28) 28.0
 
June 23, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 12.0 μg/m3 (12) 5.6 μg/m3 (24) 34.0
 
June 23, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 11.0 μg/m3 (11) 5.0 μg/m3 (21) 37.0
 
June 23, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 9.0 μg/m3 (9) 4.5 μg/m3 (19) 40.0
 
June 23, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 10.0 μg/m3 (10) 4.3 μg/m3 (18) 41.0
 
June 23, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 10.0 μg/m3 (10) 4.3 μg/m3 (18) 41.0
 
June 23, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 10.0 μg/m3 (10) 4.3 μg/m3 (18) 43.0
 
June 23, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 10.0 μg/m3 (10) 4.3 μg/m3 (18) 43.0
 
June 23, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 8.0 μg/m3 (8) 4.1 μg/m3 (18) 45.0
 
June 23, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 8.0 μg/m3 (8) 4.1 μg/m3 (18) 45.0
 
June 23, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 9.0 μg/m3 (9) 4.2 μg/m3 (18) 44.0
 
June 23, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 18.0 μg/m3 (17) 9.2 μg/m3 (39) 39.0
 
June 23, 2022, 8 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 21.0 μg/m3 (20) 10.3 μg/m3 (43) 43.0
 
June 23, 2022, 8 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 21.0 μg/m3 (20) 10.3 μg/m3 (43) 43.0
 
June 23, 2022, 6 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 15.0 μg/m3 (14) 9.0 μg/m3 (38) 38.0
 
June 23, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 13.0 μg/m3 (13) 9.0 μg/m3 (38) 38.0
 
June 23, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 11.0 μg/m3 (11) 7.4 μg/m3 (31) 41.0
 
June 23, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 11.0 μg/m3 (11) 7.4 μg/m3 (31) 41.0
 
June 23, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 11.0 μg/m3 (11) 7.4 μg/m3 (31) 41.0
 
June 23, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 10.0 μg/m3 (10) 7.1 μg/m3 (30) 43.0
 
June 22, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 6.0 μg/m3 (6) 3.3 μg/m3 (14) 43.0
 
June 22, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 6.0 μg/m3 (6) 3.3 μg/m3 (14) 43.0
 
June 22, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 6.0 μg/m3 (6) 3.3 μg/m3 (14) 43.0
 
June 22, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 7.0 μg/m3 (7) 3.9 μg/m3 (17) 43.0
 
June 22, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 7.0 μg/m3 (7) 3.9 μg/m3 (17) 43.0
 
June 22, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 8.0 μg/m3 (8) 4.0 μg/m3 (17) 45.0
 
June 22, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 8.0 μg/m3 (8) 4.6 μg/m3 (20) 43.0
 
June 22, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 8.0 μg/m3 (8) 4.6 μg/m3 (20) 44.0
 
June 22, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 8.0 μg/m3 (8) 4.6 μg/m3 (20) 44.0
 
June 22, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 9.0 μg/m3 (9) 5.2 μg/m3 (22) 44.0
 
June 22, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 10.0 μg/m3 (10) 5.8 μg/m3 (25) 45.0
 
June 22, 2022, noon N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 11.0 μg/m3 (11) 6.8 μg/m3 (29) 43.0
 
June 22, 2022, 11 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 14.0 μg/m3 (13) 8.9 μg/m3 (38) 43.0
 
June 22, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 14.0 μg/m3 (13) 8.9 μg/m3 (38) 38.0
 
June 22, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 14.0 μg/m3 (13) 8.9 μg/m3 (38) 38.0
 
June 22, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 15.0 μg/m3 (14) 9.0 μg/m3 (38) 38.0
 
June 22, 2022, midnight N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 15.0 μg/m3 (14) 8.3 μg/m3 (35) 39.0
 
June 21, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 17.0 μg/m3 (16) 9.4 μg/m3 (40) 42.0
 
June 21, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 17.0 μg/m3 (16) 9.0 μg/m3 (38) 42.0
 
June 21, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 17.0 μg/m3 (16) 9.0 μg/m3 (38) 42.0
 
June 21, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 17.0 μg/m3 (16) 9.0 μg/m3 (38) 42.0
 
June 21, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 18.0 μg/m3 (17) 8.7 μg/m3 (37) 38.0
 
June 21, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 18.0 μg/m3 (17) 8.7 μg/m3 (37) 38.0
 
June 21, 2022, 3 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) 8.5 μg/m3 (36) 37.0
 
June 21, 2022, 3 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) 8.5 μg/m3 (36) 37.0
 
June 21, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 22.0 μg/m3 (21) 8.7 μg/m3 (37) 37.0
 
June 21, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 22.0 μg/m3 (21) 8.7 μg/m3 (37) 37.0
 
June 21, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 22.0 μg/m3 (21) 8.7 μg/m3 (37) 37.0
 
June 21, 2022, 1 p.m. N/A N/A