AQSQID: 090011123

Site Name: Danbury

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
April 8, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 13.0 μg/m3 (12) 8.8 μg/m3 (37) 37.0
 
April 8, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 13.0 μg/m3 (12) 8.3 μg/m3 (35) 35.0
 
April 8, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 12.0 μg/m3 (11) 8.1 μg/m3 (34) 34.0
 
April 8, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 12.0 μg/m3 (11) 7.4 μg/m3 (31) 31.0
 
April 8, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 11.0 μg/m3 (10) 6.8 μg/m3 (28) 28.0
 
April 8, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 6.6 μg/m3 (28) 28.0
 
April 8, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 11.0 μg/m3 (10) 6.7 μg/m3 (28) 28.0
 
April 8, 2020, 3 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) 6.4 μg/m3 (27) 28.0
 
April 8, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 11.0 μg/m3 (10) 6.2 μg/m3 (26) 32.0
 
April 8, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 11.0 μg/m3 (10) 5.8 μg/m3 (24) 35.0
 
April 8, 2020, midnight N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 10.0 μg/m3 (9) 5.4 μg/m3 (23) 39.0
 
April 7, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 12.0 μg/m3 (11) 5.3 μg/m3 (22) 40.0
 
April 7, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 13.0 μg/m3 (12) 6.1 μg/m3 (25) 38.0
 
April 7, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 10.0 μg/m3 (9) 4.2 μg/m3 (18) 39.0
 
April 7, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A 10.0 μg/m3 (9) 4.2 μg/m3 (18) 41.0
 
April 7, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A 10.0 μg/m3 (9) 4.3 μg/m3 (18) 41.0
 
April 7, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A 11.0 μg/m3 (10) 4.2 μg/m3 (18) 41.0
 
April 7, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 8.0 μg/m3 (7) 4.1 μg/m3 (17) 40.0
 
April 7, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 8.0 μg/m3 (7) 4.1 μg/m3 (17) 39.0
 
April 7, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 9.0 μg/m3 (8) 4.4 μg/m3 (18) 34.0
 
April 7, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 10.0 μg/m3 (9) 4.3 μg/m3 (18) 31.0
 
April 7, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 10.0 μg/m3 (9) 4.2 μg/m3 (18) 24.0
 
April 7, 2020, noon N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 10.0 μg/m3 (9) 4.3 μg/m3 (18) 18.0
 
April 7, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A 12.0 μg/m3 (11) 5.7 μg/m3 (24) 24.0
 
April 7, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A 12.0 μg/m3 (11) 7.0 μg/m3 (29) 29.0
 
April 7, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) N/A 12.0 μg/m3 (11) 6.7 μg/m3 (28) 28.0
 
April 7, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (5) N/A 11.0 μg/m3 (10) 6.7 μg/m3 (28) 28.0
 
April 7, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A 12.0 μg/m3 (11) 7.3 μg/m3 (30) 30.0
 
April 7, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A 10.0 μg/m3 (9) 5.4 μg/m3 (23) 23.0
 
April 7, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 5.8 μg/m3 (24) 24.0
 
April 7, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) N/A 11.0 μg/m3 (10) 6.0 μg/m3 (25) 25.0
 
April 7, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 15.0 μg/m3 (14) 8.7 μg/m3 (36) 36.0
 
April 7, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 13.0 μg/m3 (12) 7.9 μg/m3 (33) 33.0
 
April 7, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 14.0 μg/m3 (13) 8.4 μg/m3 (35) 35.0
 
April 7, 2020, midnight N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 10.0 μg/m3 (9) 5.3 μg/m3 (22) 22.0
 
April 6, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 8.0 μg/m3 (7) 3.7 μg/m3 (15) 31.0
 
April 6, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 6.0 μg/m3 (5) 3.2 μg/m3 (13) 33.0
 
April 6, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 7.0 μg/m3 (6) 2.9 μg/m3 (12) 33.0
 
April 6, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 6.0 μg/m3 (5) 2.8 μg/m3 (12) 33.0
 
April 6, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 7.0 μg/m3 (6) 2.7 μg/m3 (11) 33.0
 
April 6, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 5.0 μg/m3 (5) 2.7 μg/m3 (11) 32.0
 
April 6, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 4.0 μg/m3 (4) 2.6 μg/m3 (11) 32.0
 
April 6, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 5.0 μg/m3 (5) 2.5 μg/m3 (10) 32.0
 
April 6, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 5.0 μg/m3 (5) 3.0 μg/m3 (12) 29.0
 
April 6, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 5.0 μg/m3 (5) 3.1 μg/m3 (13) 28.0
 
April 6, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 6.0 μg/m3 (5) 3.5 μg/m3 (15) 27.0
 
April 6, 2020, noon N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 6.0 μg/m3 (5) 3.8 μg/m3 (16) 25.0
 
April 6, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 6.0 μg/m3 (5) 3.8 μg/m3 (16) 25.0
 
April 6, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 6.0 μg/m3 (5) 3.9 μg/m3 (16) 25.0
 
April 6, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 6.0 μg/m3 (5) 4.0 μg/m3 (17) 27.0
 
April 6, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 6.0 μg/m3 (5) 4.0 μg/m3 (17) 28.0
 
April 6, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 8.0 μg/m3 (7) 4.8 μg/m3 (20) 29.0
 
April 6, 2020, 6 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) 9.2 μg/m3 (38) 38.0
 
April 6, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 13.5 μg/m3 (53) 53.0
 
April 6, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 21.0 μg/m3 (19) 14.8 μg/m3 (56) 56.0
 
April 6, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 21.0 μg/m3 (19) 13.7 μg/m3 (54) 54.0
 
April 6, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 20.0 μg/m3 (18) 13.9 μg/m3 (54) 54.0
 
April 6, 2020, 1 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) 11.2 μg/m3 (47) 47.0
 
April 6, 2020, midnight N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 17.0 μg/m3 (15) 10.7 μg/m3 (45) 45.0
 
April 5, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 17.0 μg/m3 (15) 10.0 μg/m3 (42) 42.0
 
April 5, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 15.0 μg/m3 (14) 8.8 μg/m3 (37) 37.0
 
April 5, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 16.0 μg/m3 (15) 8.9 μg/m3 (37) 37.0
 
April 5, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 15.0 μg/m3 (14) 8.6 μg/m3 (36) 36.0
 
April 5, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 14.0 μg/m3 (13) 8.8 μg/m3 (37) 37.0
 
April 5, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 13.0 μg/m3 (12) 7.9 μg/m3 (33) 33.0
 
April 5, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 14.0 μg/m3 (13) 8.0 μg/m3 (33) 33.0
 
April 5, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 14.0 μg/m3 (13) 7.7 μg/m3 (32) 32.0
 
April 5, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 17.0 μg/m3 (15) 8.6 μg/m3 (36) 36.0
 
April 5, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 18.0 μg/m3 (16) 9.1 μg/m3 (38) 38.0
 
April 5, 2020, 1 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) 8.9 μg/m3 (37) 37.0
 
April 5, 2020, noon N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 16.0 μg/m3 (15) 8.5 μg/m3 (35) 35.0
 
April 5, 2020, 11 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) 8.6 μg/m3 (36) 36.0
 
April 5, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 16.0 μg/m3 (15) 8.1 μg/m3 (34) 34.0
 
April 5, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 15.0 μg/m3 (14) 7.6 μg/m3 (32) 32.0
 
April 5, 2020, 8 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) 6.9 μg/m3 (29) 29.0
 
April 5, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 13.0 μg/m3 (12) 6.9 μg/m3 (29) 29.0
 
April 5, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 12.0 μg/m3 (11) 7.1 μg/m3 (30) 30.0
 
April 5, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 7.1 μg/m3 (30) 30.0
 
April 5, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 11.0 μg/m3 (10) 7.3 μg/m3 (30) 30.0
 
April 5, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 10.0 μg/m3 (9) 6.3 μg/m3 (26) 28.0
 
April 5, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 12.0 μg/m3 (11) 7.9 μg/m3 (33) 33.0
 
April 5, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 8.0 μg/m3 (7) 5.1 μg/m3 (21) 33.0
 
April 5, 2020, midnight N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 8.0 μg/m3 (7) 5.1 μg/m3 (21) 34.0
 
April 4, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 7.0 μg/m3 (6) 3.9 μg/m3 (16) 35.0
 
April 4, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 6.0 μg/m3 (5) 3.7 μg/m3 (15) 35.0
 
April 4, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 5.0 μg/m3 (5) 3.4 μg/m3 (14) 33.0
 
April 4, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 4.0 μg/m3 (4) 2.7 μg/m3 (11) 33.0
 
April 4, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 4.0 μg/m3 (4) 2.2 μg/m3 (9) 33.0
 
April 4, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 4.0 μg/m3 (4) 1.6 μg/m3 (7) 33.0
 
April 4, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 4.0 μg/m3 (4) 1.5 μg/m3 (6) 32.0
 
April 4, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 2.0 μg/m3 (2) 1.3 μg/m3 (5) 32.0
 
April 4, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 2.0 μg/m3 (2) 1.1 μg/m3 (5) 30.0
 
April 4, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 1.0 μg/m3 (1) 0.9 μg/m3 (4) 29.0
 
April 4, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 2.0 μg/m3 (2) 0.8 μg/m3 (3) 29.0
 
April 4, 2020, noon N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 1.0 μg/m3 (1) 0.7 μg/m3 (3) 28.0
 
April 4, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 2.0 μg/m3 (2) 1.1 μg/m3 (5) 27.0
 
April 4, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 1.0 μg/m3 (1) 0.6 μg/m3 (2) 28.0
 
April 4, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 1.0 μg/m3 (1) 0.6 μg/m3 (2) 28.0
 
April 4, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 1.0 μg/m3 (1) 0.5 μg/m3 (2) 29.0
 
April 4, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 1.0 μg/m3 (1) 0.5 μg/m3 (2) 29.0
 
April 4, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 0.0 μg/m3 (0) 0.4 μg/m3 (2) 29.0
 
April 4, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 0.5 μg/m3 (2) 2.0
 
April 4, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 0.0 μg/m3 (0) 0.5 μg/m3 (2) 29.0
 
April 4, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 0.0 μg/m3 (0) 0.6 μg/m3 (2) 30.0
 
April 4, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 1.0 μg/m3 (1) 0.7 μg/m3 (3) 29.0
 
April 4, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 2.0 μg/m3 (2) 1.0 μg/m3 (4) 29.0
 
April 4, 2020, midnight N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 1.0 μg/m3 (1) 0.9 μg/m3 (4) 29.0
 
April 3, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 1.0 μg/m3 (1) 0.9 μg/m3 (4) 30.0
 
April 3, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 1.0 μg/m3 (1) 1.0 μg/m3 (4) 29.0
 
April 3, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 2.0 μg/m3 (2) 1.6 μg/m3 (7) 26.0
 
April 3, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 2.0 μg/m3 (2) 1.5 μg/m3 (6) 26.0
 
April 3, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 3.0 μg/m3 (3) 1.5 μg/m3 (6) 26.0
 
April 3, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 1.0 μg/m3 (1) 1.1 μg/m3 (5) 25.0
 
April 3, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 1.0 μg/m3 (1) 1.0 μg/m3 (4) 24.0
 
April 3, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 1.0 μg/m3 (1) 0.7 μg/m3 (3) 24.0
 
April 3, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 0.0 μg/m3 (0) 0.5 μg/m3 (2) 23.0
 
April 3, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 1.0 μg/m3 (1) 0.5 μg/m3 (2) 22.0
 
April 3, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 0.0 μg/m3 (0) 0.3 μg/m3 (1) 22.0
 
April 3, 2020, noon N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 1.0 μg/m3 (1) 0.6 μg/m3 (2) 21.0
 
April 3, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 0.0 μg/m3 (0) 0.6 μg/m3 (2) 22.0
 
April 3, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 1.0 μg/m3 (1) 0.7 μg/m3 (3) 22.0
 
April 3, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 1.0 μg/m3 (1) 0.8 μg/m3 (3) 23.0
 
April 3, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 1.0 μg/m3 (1) 0.6 μg/m3 (2) 24.0
 
April 3, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 1.0 μg/m3 (1) 0.7 μg/m3 (3) 25.0
 
April 3, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 1.0 μg/m3 (1) 0.8 μg/m3 (3) 26.0
 
April 3, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (1) 0.9 μg/m3 (4) 4.0
 
April 3, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 2.0 μg/m3 (2) 1.2 μg/m3 (5) 28.0
 
April 3, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 3.0 μg/m3 (3) 1.3 μg/m3 (5) 30.0
 
April 3, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 3.0 μg/m3 (3) 1.7 μg/m3 (7) 31.0
 
April 3, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 5.0 μg/m3 (5) 2.6 μg/m3 (11) 31.0
 
April 3, 2020, midnight N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 7.0 μg/m3 (6) 2.0 μg/m3 (8) 32.0
 
April 2, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 4.0 μg/m3 (4) 2.1 μg/m3 (9) 32.0
 
April 2, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 5.0 μg/m3 (5) 1.9 μg/m3 (8) 32.0
 
April 2, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 5.0 μg/m3 (5) 2.1 μg/m3 (9) 32.0
 
April 2, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 6.0 μg/m3 (5) 2.8 μg/m3 (12) 32.0
 
April 2, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 7.0 μg/m3 (6) 3.2 μg/m3 (13) 32.0
 
April 2, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 7.0 μg/m3 (6) 2.7 μg/m3 (11) 32.0
 
April 2, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 5.0 μg/m3 (5) 2.4 μg/m3 (10) 32.0
 
April 2, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 6.0 μg/m3 (5) 2.3 μg/m3 (10) 32.0
 
April 2, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 6.0 μg/m3 (5) 2.7 μg/m3 (11) 32.0
 
April 2, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 5.0 μg/m3 (5) 3.0 μg/m3 (12) 31.0
 
April 2, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 5.0 μg/m3 (5) 2.9 μg/m3 (12) 29.0
 
April 2, 2020, noon N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 4.0 μg/m3 (4) 2.5 μg/m3 (10) 29.0
 
April 2, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 3.0 μg/m3 (3) 2.3 μg/m3 (10) 28.0
 
April 2, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 3.0 μg/m3 (3) 2.1 μg/m3 (9) 29.0
 
April 2, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 4.0 μg/m3 (4) 3.0 μg/m3 (12) 28.0
 
April 2, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 4.0 μg/m3 (4) 3.3 μg/m3 (14) 29.0
 
April 2, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 5.0 μg/m3 (5) 3.3 μg/m3 (14) 29.0
 
April 2, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 6.0 μg/m3 (5) 3.4 μg/m3 (14) 30.0
 
April 2, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 3.5 μg/m3 (15) 15.0
 
April 2, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 8.0 μg/m3 (7) 4.3 μg/m3 (18) 31.0
 
April 2, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 8.0 μg/m3 (7) 4.7 μg/m3 (20) 32.0
 
April 2, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 9.0 μg/m3 (8) 5.2 μg/m3 (22) 31.0
 
April 2, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 8.0 μg/m3 (7) 4.9 μg/m3 (20) 33.0
 
April 2, 2020, midnight N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 8.0 μg/m3 (7) 4.6 μg/m3 (19) 35.0
 
April 1, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 7.0 μg/m3 (6) 4.5 μg/m3 (19) 35.0
 
April 1, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 8.0 μg/m3 (7) 4.2 μg/m3 (18) 37.0
 
April 1, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 9.0 μg/m3 (8) 4.5 μg/m3 (19) 38.0
 
April 1, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 8.0 μg/m3 (7) 4.5 μg/m3 (19) 37.0
 
April 1, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 7.0 μg/m3 (6) 4.1 μg/m3 (17) 36.0
 
April 1, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 5.0 μg/m3 (5) 3.9 μg/m3 (16) 35.0
 
April 1, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 6.0 μg/m3 (5) 3.8 μg/m3 (16) 35.0
 
April 1, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 7.0 μg/m3 (6) 3.9 μg/m3 (16) 33.0
 
April 1, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 3.9 μg/m3 (16) 16.0
 
April 1, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
April 1, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 9.0 μg/m3 (8) 4.3 μg/m3 (18) 32.0
 
April 1, 2020, noon N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 9.0 μg/m3 (8) 5.5 μg/m3 (23) 28.0
 
April 1, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 12.0 μg/m3 (11) 6.9 μg/m3 (29) 29.0