AQSQID: 516500008

Site Name: Hampton

Location: Hampton (Langley Air Force Base), VA

Reporting: True, Located: True

Current AQI: 46.0

Hampton (Langley Air Force Base) VA, US: 37.103683, -76.386948

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 23, 2020, 6 a.m. N/A N/A N/A 15.0 ppb (14) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 23, 2020, 5 a.m. N/A N/A N/A 11.0 ppb (10) N/A 1.0 ppb (1) N/A 0.2 ppb (2) N/A 7.6 μg/m3 (32) 32.0
 
Jan. 23, 2020, 4 a.m. N/A N/A N/A 10.0 ppb (9) N/A 1.0 ppb (1) N/A 0.2 ppb (2) N/A 6.5 μg/m3 (27) 27.0
 
Jan. 23, 2020, 3 a.m. N/A N/A N/A 8.0 ppb (7) N/A 1.0 ppb (1) N/A 0.3 ppb (3) N/A 6.5 μg/m3 (27) 27.0
 
Jan. 23, 2020, 2 a.m. N/A N/A N/A 7.0 ppb (6) N/A 1.0 ppb (1) N/A 0.2 ppb (2) N/A 5.7 μg/m3 (24) 24.0
 
Jan. 23, 2020, 1 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 6.5 μg/m3 (27) 27.0
 
Jan. 23, 2020, midnight N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 9.6 μg/m3 (40) 40.0
 
Jan. 22, 2020, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 12.1 μg/m3 (50) 50.0
 
Jan. 22, 2020, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 8.2 μg/m3 (34) 34.0
 
Jan. 22, 2020, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 1.9 μg/m3 (8) 8.0
 
Jan. 22, 2020, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A -0.5 μg/m3 (0) 2.0
 
Jan. 22, 2020, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A -0.1 μg/m3 (0) 2.0
 
Jan. 22, 2020, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 0.6 μg/m3 (2) 2.0
 
Jan. 22, 2020, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 1.9 μg/m3 (8) 8.0
 
Jan. 22, 2020, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 22, 2020, 3 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 4.3 μg/m3 (18) 18.0
 
Jan. 22, 2020, 2 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 3.2 μg/m3 (13) 13.0
 
Jan. 22, 2020, 1 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 2.7 μg/m3 (11) 11.0
 
Jan. 22, 2020, noon N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 5.1 μg/m3 (21) 21.0
 
Jan. 22, 2020, 11 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 22, 2020, 10 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 7.4 μg/m3 (31) 31.0
 
Jan. 22, 2020, 9 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 5.8 μg/m3 (24) 24.0
 
Jan. 22, 2020, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.1 ppb (1) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 22, 2020, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 7.3 μg/m3 (30) 30.0
 
Jan. 22, 2020, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 6.7 μg/m3 (28) 28.0
 
Jan. 22, 2020, 5 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 4.9 μg/m3 (20) 20.0
 
Jan. 22, 2020, 4 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 4.8 μg/m3 (20) 20.0
 
Jan. 22, 2020, 3 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 5.1 μg/m3 (21) 21.0
 
Jan. 22, 2020, 2 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 6.4 μg/m3 (27) 27.0
 
Jan. 22, 2020, 1 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 4.8 μg/m3 (20) 20.0
 
Jan. 22, 2020, midnight N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 5.2 μg/m3 (22) 22.0
 
Jan. 21, 2020, 11 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 5.3 μg/m3 (22) 22.0
 
Jan. 21, 2020, 10 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 4.8 μg/m3 (20) 20.0
 
Jan. 21, 2020, 9 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 3.3 μg/m3 (14) 14.0
 
Jan. 21, 2020, 8 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A 0.3 μg/m3 (1) 3.0
 
Jan. 21, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.7 μg/m3 (3) 3.0
 
Jan. 21, 2020, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.1 ppb (1) N/A 1.1 μg/m3 (5) 5.0
 
Jan. 21, 2020, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 2.2 μg/m3 (9) 9.0
 
Jan. 21, 2020, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 3.6 μg/m3 (15) 15.0
 
Jan. 21, 2020, 3 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 4.1 μg/m3 (17) 17.0
 
Jan. 21, 2020, 2 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 2.0 μg/m3 (8) 8.0
 
Jan. 21, 2020, 1 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 1.9 μg/m3 (8) 8.0
 
Jan. 21, 2020, noon N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 4.1 μg/m3 (17) 17.0
 
Jan. 21, 2020, 11 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 3.6 μg/m3 (15) 15.0
 
Jan. 21, 2020, 10 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 3.3 μg/m3 (14) 14.0
 
Jan. 21, 2020, 9 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 4.4 μg/m3 (18) 18.0
 
Jan. 21, 2020, 8 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 5.8 μg/m3 (24) 24.0
 
Jan. 21, 2020, 7 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 9.2 μg/m3 (38) 38.0
 
Jan. 21, 2020, 6 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 12.2 μg/m3 (50) 50.0
 
Jan. 21, 2020, 5 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 7.3 μg/m3 (30) 30.0
 
Jan. 21, 2020, 4 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 3.7 μg/m3 (15) 15.0
 
Jan. 21, 2020, 3 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 6.4 μg/m3 (27) 27.0
 
Jan. 21, 2020, 2 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 21, 2020, 1 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 5.1 μg/m3 (21) 21.0
 
Jan. 21, 2020, midnight N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 4.3 μg/m3 (18) 18.0
 
Jan. 20, 2020, 11 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 4.8 μg/m3 (20) 20.0
 
Jan. 20, 2020, 10 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 6.1 μg/m3 (25) 25.0
 
Jan. 20, 2020, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 3.8 μg/m3 (16) 16.0
 
Jan. 20, 2020, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 3.5 μg/m3 (15) 15.0
 
Jan. 20, 2020, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 3.2 μg/m3 (13) 13.0
 
Jan. 20, 2020, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 4.3 μg/m3 (18) 18.0
 
Jan. 20, 2020, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 5.1 μg/m3 (21) 21.0
 
Jan. 20, 2020, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 5.9 μg/m3 (25) 25.0
 
Jan. 20, 2020, 3 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 6.4 μg/m3 (27) 27.0
 
Jan. 20, 2020, 2 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 7.4 μg/m3 (31) 31.0
 
Jan. 20, 2020, 1 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 7.5 μg/m3 (31) 31.0
 
Jan. 20, 2020, noon N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 5.5 μg/m3 (23) 23.0
 
Jan. 20, 2020, 11 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 6.5 μg/m3 (27) 27.0
 
Jan. 20, 2020, 10 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 20, 2020, 9 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 6.9 μg/m3 (29) 29.0
 
Jan. 20, 2020, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 6.1 μg/m3 (25) 25.0
 
Jan. 20, 2020, 7 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 20, 2020, 6 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 6.5 μg/m3 (27) 27.0
 
Jan. 20, 2020, 5 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 6.7 μg/m3 (28) 28.0
 
Jan. 20, 2020, 4 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 6.4 μg/m3 (27) 27.0
 
Jan. 20, 2020, 3 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 7.4 μg/m3 (31) 31.0
 
Jan. 20, 2020, 2 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 8.3 μg/m3 (35) 35.0
 
Jan. 20, 2020, 1 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 12.5 μg/m3 (51) 51.0
 
Jan. 20, 2020, midnight N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 15.0 μg/m3 (56) 56.0
 
Jan. 19, 2020, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 15.7 μg/m3 (58) 58.0
 
Jan. 19, 2020, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 12.3 μg/m3 (51) 51.0
 
Jan. 19, 2020, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 5.7 μg/m3 (24) 24.0
 
Jan. 19, 2020, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 1.4 μg/m3 (6) 6.0
 
Jan. 19, 2020, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 0.1 μg/m3 (0) 1.0
 
Jan. 19, 2020, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 3.0 μg/m3 (12) 12.0
 
Jan. 19, 2020, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 3.9 μg/m3 (16) 16.0
 
Jan. 19, 2020, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 5.4 μg/m3 (23) 23.0
 
Jan. 19, 2020, 3 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 6.7 μg/m3 (28) 28.0
 
Jan. 19, 2020, 2 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 7.3 μg/m3 (30) 30.0
 
Jan. 19, 2020, 1 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 7.6 μg/m3 (32) 32.0
 
Jan. 19, 2020, noon N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 6.3 μg/m3 (26) 26.0
 
Jan. 19, 2020, 11 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 5.1 μg/m3 (21) 21.0
 
Jan. 19, 2020, 10 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 3.0 μg/m3 (12) 12.0
 
Jan. 19, 2020, 9 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 19, 2020, 8 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.1 ppb (1) N/A 2.8 μg/m3 (12) 12.0
 
Jan. 19, 2020, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 2.9 μg/m3 (12) 12.0
 
Jan. 19, 2020, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 0.3 μg/m3 (1) 1.0
 
Jan. 19, 2020, 5 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 0.4 μg/m3 (2) 3.0
 
Jan. 19, 2020, 3 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 0.7 μg/m3 (3) 3.0
 
Jan. 19, 2020, 2 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A -1.0 μg/m3 (0) 3.0
 
Jan. 19, 2020, 1 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A -2.0 μg/m3 (0) 3.0
 
Jan. 19, 2020, midnight N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 1.0 μg/m3 (4) 4.0
 
Jan. 18, 2020, 11 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 3.8 μg/m3 (16) 16.0
 
Jan. 18, 2020, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 2.1 μg/m3 (9) 9.0
 
Jan. 18, 2020, 9 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 2.7 μg/m3 (11) 11.0
 
Jan. 18, 2020, 8 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 2.1 μg/m3 (9) 9.0
 
Jan. 18, 2020, 7 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 2.0 μg/m3 (8) 8.0
 
Jan. 18, 2020, 6 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 1.5 μg/m3 (6) 6.0
 
Jan. 18, 2020, 5 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 0.1 μg/m3 (0) 4.0
 
Jan. 18, 2020, 4 p.m. N/A N/A N/A 8.0 ppb (7) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 0.2 μg/m3 (1) 7.0
 
Jan. 18, 2020, 3 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 0.7 μg/m3 (3) 5.0
 
Jan. 18, 2020, 2 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 0.5 μg/m3 (2) 6.0
 
Jan. 18, 2020, 1 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 2.3 μg/m3 (10) 10.0
 
Jan. 18, 2020, noon N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 3.3 μg/m3 (14) 14.0
 
Jan. 18, 2020, 11 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 2.6 μg/m3 (11) 11.0
 
Jan. 18, 2020, 10 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 2.8 μg/m3 (12) 12.0
 
Jan. 18, 2020, 9 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 3.3 μg/m3 (14) 14.0
 
Jan. 18, 2020, 8 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 3.8 μg/m3 (16) 16.0
 
Jan. 18, 2020, 7 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 6.1 μg/m3 (25) 25.0
 
Jan. 18, 2020, 6 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 9.1 μg/m3 (38) 38.0
 
Jan. 18, 2020, 5 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 6.4 μg/m3 (27) 27.0
 
Jan. 18, 2020, 4 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.0 ppb (0) N/A 3.5 μg/m3 (15) 15.0
 
Jan. 18, 2020, 3 a.m. N/A N/A N/A 8.0 ppb (7) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 4.4 μg/m3 (18) 18.0
 
Jan. 18, 2020, 2 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.0 ppb (0) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 18, 2020, 1 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A 3.7 μg/m3 (15) 15.0
 
Jan. 18, 2020, midnight N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.0 ppb (0) N/A 5.1 μg/m3 (21) 21.0
 
Jan. 17, 2020, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2020, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2020, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 3.3 μg/m3 (14) 14.0
 
Jan. 17, 2020, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 0.0 μg/m3 (0) 2.0
 
Jan. 17, 2020, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A -1.7 μg/m3 (0) 2.0
 
Jan. 17, 2020, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A -1.3 μg/m3 (0) 2.0
 
Jan. 17, 2020, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 0.0 μg/m3 (0) 1.0
 
Jan. 17, 2020, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A -0.1 μg/m3 (0) 1.0
 
Jan. 17, 2020, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 0.6 μg/m3 (2) 2.0
 
Jan. 17, 2020, 2 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 2.2 μg/m3 (9) 9.0
 
Jan. 17, 2020, 1 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 2.8 μg/m3 (12) 12.0
 
Jan. 17, 2020, noon N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 3.2 μg/m3 (13) 13.0
 
Jan. 17, 2020, 11 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 4.2 μg/m3 (18) 18.0
 
Jan. 17, 2020, 10 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 4.8 μg/m3 (20) 20.0
 
Jan. 17, 2020, 9 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 4.5 μg/m3 (19) 19.0
 
Jan. 17, 2020, 8 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 3.9 μg/m3 (16) 16.0
 
Jan. 17, 2020, 7 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 6.8 μg/m3 (28) 28.0
 
Jan. 17, 2020, 6 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 8.5 μg/m3 (35) 35.0
 
Jan. 17, 2020, 5 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 6.4 μg/m3 (27) 27.0
 
Jan. 17, 2020, 4 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 4.9 μg/m3 (20) 20.0
 
Jan. 17, 2020, 3 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 4.9 μg/m3 (20) 20.0
 
Jan. 17, 2020, 2 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 7.7 μg/m3 (32) 32.0
 
Jan. 17, 2020, 1 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 9.7 μg/m3 (40) 40.0
 
Jan. 17, 2020, midnight N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 12.5 μg/m3 (51) 51.0
 
Jan. 16, 2020, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 9.7 μg/m3 (40) 40.0
 
Jan. 16, 2020, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 4.6 μg/m3 (19) 19.0
 
Jan. 16, 2020, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 2.7 μg/m3 (11) 11.0
 
Jan. 16, 2020, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 1.7 μg/m3 (7) 7.0
 
Jan. 16, 2020, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 4.4 μg/m3 (18) 18.0
 
Jan. 16, 2020, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 12.6 μg/m3 (51) 51.0
 
Jan. 16, 2020, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 0.1 ppb (1) N/A 20.6 μg/m3 (68) 68.0
 
Jan. 16, 2020, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 20.8 μg/m3 (69) 69.0
 
Jan. 16, 2020, 3 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 14.3 μg/m3 (55) 55.0
 
Jan. 16, 2020, 2 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 6.8 μg/m3 (28) 28.0
 
Jan. 16, 2020, 1 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 3.3 μg/m3 (14) 14.0
 
Jan. 16, 2020, noon N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 0.7 μg/m3 (3) 4.0
 
Jan. 16, 2020, 11 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A -0.2 μg/m3 (0) 5.0
 
Jan. 16, 2020, 10 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A -0.6 μg/m3 (0) 4.0
 
Jan. 16, 2020, 9 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 1.1 μg/m3 (5) 5.0
 
Jan. 16, 2020, 8 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.1 ppb (1) N/A 1.5 μg/m3 (6) 6.0
 
Jan. 16, 2020, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 3.1 μg/m3 (13) 13.0
 
Jan. 16, 2020, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 5.8 μg/m3 (24) 24.0