AQSQID: 011030011

Site Name: Decatur

Location: Decatur (Wallace Dr Seast), AL

Reporting: True, Located: True

Current AQI: 21.0

Decatur (Wallace Dr Seast) AL, US: 34.5286, -86.9706

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 18, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 5.1 μg/m3 (21) 21.0
 
Jan. 18, 2020, midnight N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A -1.8 μg/m3 (0) 1.0
 
Jan. 17, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 0.3 μg/m3 (1) 1.0
 
Jan. 17, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 1.7 μg/m3 (7) 7.0
 
Jan. 17, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 2.9 μg/m3 (12) 12.0
 
Jan. 17, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 4.1 μg/m3 (17) 17.0
 
Jan. 17, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 4.6 μg/m3 (19) 19.0
 
Jan. 17, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 3.0 μg/m3 (12) 12.0
 
Jan. 17, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 1.2 μg/m3 (5) 5.0
 
Jan. 17, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 2.9 μg/m3 (12) 12.0
 
Jan. 17, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 1.0 μg/m3 (4) 4.0
 
Jan. 17, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 1.9 μg/m3 (8) 8.0
 
Jan. 17, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 2.7 μg/m3 (11) 11.0
 
Jan. 17, 2020, noon N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 1.2 μg/m3 (5) 5.0
 
Jan. 17, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 2.4 μg/m3 (10) 10.0
 
Jan. 17, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 2.6 μg/m3 (11) 11.0
 
Jan. 17, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 3.1 μg/m3 (13) 13.0
 
Jan. 17, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 1.7 μg/m3 (7) 7.0
 
Jan. 17, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 2.6 μg/m3 (11) 11.0
 
Jan. 17, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.9 μg/m3 (12) 12.0
 
Jan. 17, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 3.8 μg/m3 (16) 16.0
 
Jan. 17, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 4.8 μg/m3 (20) 20.0
 
Jan. 17, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 5.8 μg/m3 (24) 24.0
 
Jan. 17, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 3.6 μg/m3 (15) 15.0
 
Jan. 17, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 2.7 μg/m3 (11) 11.0
 
Jan. 17, 2020, midnight N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 5.1 μg/m3 (21) 21.0
 
Jan. 16, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 4.6 μg/m3 (19) 19.0
 
Jan. 16, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 4.1 μg/m3 (17) 17.0
 
Jan. 16, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 6.9 μg/m3 (29) 29.0
 
Jan. 16, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 11.3 μg/m3 (47) 47.0
 
Jan. 16, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 5.7 μg/m3 (24) 24.0
 
Jan. 16, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 5.7 μg/m3 (24) 24.0
 
Jan. 16, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 7.6 μg/m3 (32) 32.0
 
Jan. 16, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 10.6 μg/m3 (44) 44.0
 
Jan. 16, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 5.1 μg/m3 (21) 21.0
 
Jan. 16, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 3.9 μg/m3 (16) 16.0
 
Jan. 16, 2020, noon N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 1.2 μg/m3 (5) 5.0
 
Jan. 16, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A -4.7 μg/m3 (0) 1.0
 
Jan. 16, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A -2.0 μg/m3 (0) 1.0
 
Jan. 16, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 2.5 μg/m3 (10) 10.0
 
Jan. 16, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 2.3 μg/m3 (10) 10.0
 
Jan. 16, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 1.3 μg/m3 (5) 5.0
 
Jan. 16, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.6 μg/m3 (2) 2.0
 
Jan. 16, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 1.4 μg/m3 (6) 6.0
 
Jan. 16, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 3.9 μg/m3 (16) 16.0
 
Jan. 16, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 4.6 μg/m3 (19) 19.0
 
Jan. 16, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 3.5 μg/m3 (15) 15.0
 
Jan. 16, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 4.4 μg/m3 (18) 18.0
 
Jan. 16, 2020, midnight N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 3.9 μg/m3 (16) 16.0
 
Jan. 15, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 2.3 μg/m3 (10) 10.0
 
Jan. 15, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 0.9 μg/m3 (4) 4.0
 
Jan. 15, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 2.3 μg/m3 (10) 10.0
 
Jan. 15, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 3.2 μg/m3 (13) 13.0
 
Jan. 15, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 2.3 μg/m3 (10) 10.0
 
Jan. 15, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 1.4 μg/m3 (6) 6.0
 
Jan. 15, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 0.4 μg/m3 (2) 2.0
 
Jan. 15, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 1.1 μg/m3 (5) 5.0
 
Jan. 15, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 2.5 μg/m3 (10) 10.0
 
Jan. 15, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 0.6 μg/m3 (2) 2.0
 
Jan. 15, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 1.8 μg/m3 (8) 8.0
 
Jan. 15, 2020, noon N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 0.6 μg/m3 (2) 2.0
 
Jan. 15, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A -0.5 μg/m3 (0) 1.0
 
Jan. 15, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 3.9 μg/m3 (16) 16.0
 
Jan. 15, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 4.1 μg/m3 (17) 17.0
 
Jan. 15, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A -1.7 μg/m3 (0) 1.0
 
Jan. 15, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 1.3 μg/m3 (5) 5.0
 
Jan. 15, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.8 μg/m3 (3) 3.0
 
Jan. 15, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A -0.7 μg/m3 (0) 1.0
 
Jan. 15, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 1.6 μg/m3 (7) 7.0
 
Jan. 15, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 3.4 μg/m3 (14) 14.0
 
Jan. 15, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 1.1 μg/m3 (5) 5.0
 
Jan. 15, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 1.8 μg/m3 (8) 8.0
 
Jan. 15, 2020, midnight N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 3.4 μg/m3 (14) 14.0
 
Jan. 14, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 2.9 μg/m3 (12) 12.0
 
Jan. 14, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 2.3 μg/m3 (10) 10.0
 
Jan. 14, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 2.8 μg/m3 (12) 12.0
 
Jan. 14, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 1.6 μg/m3 (7) 7.0
 
Jan. 14, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 3.6 μg/m3 (15) 15.0
 
Jan. 14, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 2.5 μg/m3 (10) 10.0
 
Jan. 14, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 0.8 μg/m3 (3) 3.0
 
Jan. 14, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 1.3 μg/m3 (5) 5.0
 
Jan. 14, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 0.8 μg/m3 (3) 3.0
 
Jan. 14, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 1.1 μg/m3 (5) 5.0
 
Jan. 14, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 0.4 μg/m3 (2) 2.0
 
Jan. 14, 2020, noon N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A -0.5 μg/m3 (0) 1.0
 
Jan. 14, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 3.0 μg/m3 (12) 12.0
 
Jan. 14, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 5.8 μg/m3 (24) 24.0
 
Jan. 14, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 4.6 μg/m3 (19) 19.0
 
Jan. 14, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 3.8 μg/m3 (16) 16.0
 
Jan. 14, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 1.5 μg/m3 (6) 6.0
 
Jan. 14, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.5 μg/m3 (15) 15.0
 
Jan. 14, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 14, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 4.8 μg/m3 (20) 20.0
 
Jan. 14, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 6.7 μg/m3 (28) 28.0
 
Jan. 14, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 10.4 μg/m3 (43) 43.0
 
Jan. 14, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 9.9 μg/m3 (41) 41.0
 
Jan. 14, 2020, midnight N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 7.9 μg/m3 (33) 33.0
 
Jan. 13, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 6.7 μg/m3 (28) 28.0
 
Jan. 13, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 5.3 μg/m3 (22) 22.0
 
Jan. 13, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 8.2 μg/m3 (34) 34.0
 
Jan. 13, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 11.4 μg/m3 (48) 48.0
 
Jan. 13, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 17.6 μg/m3 (62) 62.0
 
Jan. 13, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 10.8 μg/m3 (45) 45.0
 
Jan. 13, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 8.6 μg/m3 (36) 36.0
 
Jan. 13, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 6.4 μg/m3 (27) 27.0
 
Jan. 13, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 5.5 μg/m3 (23) 23.0
 
Jan. 13, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 3.6 μg/m3 (15) 15.0
 
Jan. 13, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 3.8 μg/m3 (16) 16.0
 
Jan. 13, 2020, noon N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 6.9 μg/m3 (29) 29.0
 
Jan. 13, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 8.6 μg/m3 (36) 36.0
 
Jan. 13, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 3.3 μg/m3 (14) 14.0
 
Jan. 13, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 6.5 μg/m3 (27) 27.0
 
Jan. 13, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 11.5 μg/m3 (48) 48.0
 
Jan. 13, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 8.1 μg/m3 (34) 34.0
 
Jan. 13, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.1 μg/m3 (46) 46.0
 
Jan. 13, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 4.3 μg/m3 (18) 18.0
 
Jan. 13, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 13, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 3.6 μg/m3 (15) 15.0
 
Jan. 13, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 2.6 μg/m3 (11) 11.0
 
Jan. 13, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 1.9 μg/m3 (8) 8.0
 
Jan. 13, 2020, midnight N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A -1.6 μg/m3 (0) 1.0
 
Jan. 12, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A -0.8 μg/m3 (0) 1.0
 
Jan. 12, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 0.8 μg/m3 (3) 3.0
 
Jan. 12, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 2.7 μg/m3 (11) 11.0
 
Jan. 12, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 7.2 μg/m3 (30) 30.0
 
Jan. 12, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 9.1 μg/m3 (38) 38.0
 
Jan. 12, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 2.9 μg/m3 (12) 12.0
 
Jan. 12, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 1.0 μg/m3 (4) 4.0
 
Jan. 12, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 0.7 μg/m3 (3) 3.0
 
Jan. 12, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 12, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 10.8 μg/m3 (45) 45.0
 
Jan. 12, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 2.9 μg/m3 (12) 12.0
 
Jan. 12, 2020, noon N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 3.4 μg/m3 (14) 14.0
 
Jan. 12, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 2.7 μg/m3 (11) 11.0
 
Jan. 12, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 1.4 μg/m3 (6) 6.0
 
Jan. 12, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 1.0 μg/m3 (4) 4.0
 
Jan. 12, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 0.5 μg/m3 (2) 2.0
 
Jan. 12, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 0.3 μg/m3 (1) 1.0
 
Jan. 12, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A -4.0 μg/m3 (0) N/A
Jan. 12, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A -3.0 μg/m3 (0) 1.0
 
Jan. 12, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 0.3 μg/m3 (1) 1.0
 
Jan. 12, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 0.1 μg/m3 (0) 1.0
 
Jan. 12, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 1.0
 
Jan. 12, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 1.0
 
Jan. 12, 2020, midnight N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A -2.0 μg/m3 (0) 2.0
 
Jan. 11, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 2.0 μg/m3 (8) 8.0
 
Jan. 11, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 2.7 μg/m3 (11) 11.0
 
Jan. 11, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A -3.4 μg/m3 (0) 2.0
 
Jan. 11, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A -3.1 μg/m3 (0) 2.0
 
Jan. 11, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 2.3 μg/m3 (10) 10.0
 
Jan. 11, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 2.8 μg/m3 (12) 12.0
 
Jan. 11, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 1.3 μg/m3 (5) 5.0
 
Jan. 11, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 4.7 μg/m3 (20) 20.0
 
Jan. 11, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 5.4 μg/m3 (23) 23.0
 
Jan. 11, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A -0.5 μg/m3 (0) 2.0
 
Jan. 11, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 1.4 μg/m3 (6) 6.0
 
Jan. 11, 2020, noon N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 3.4 μg/m3 (14) 14.0
 
Jan. 11, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 4.4 μg/m3 (18) 18.0
 
Jan. 11, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 5.6 μg/m3 (23) 23.0
 
Jan. 11, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 6.3 μg/m3 (26) 26.0
 
Jan. 11, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 3.6 μg/m3 (15) 15.0
 
Jan. 11, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 3.4 μg/m3 (14) 14.0
 
Jan. 11, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.8 μg/m3 (28) 28.0
 
Jan. 11, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 3.9 μg/m3 (16) 16.0
 
Jan. 11, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 4.3 μg/m3 (18) 18.0
 
Jan. 11, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 8.5 μg/m3 (35) 35.0
 
Jan. 11, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 6.8 μg/m3 (28) 28.0