AQSQID: 291890016

Site Name: Rider Trail I-70

Location: Bridgeton (Natural Bridge Jct), MO

Reporting: True, Located: True

Current AQI: 10.0

Bridgeton (Natural Bridge Jct) MO, US: 38.75264, -90.44884

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 19, 2020, midnight 11.0 ppb (10) 4.3 ppb (4) N/A 7.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A N/A 10.0
 
Jan. 18, 2020, 11 p.m. 15.0 ppb (14) 6.5 ppb (6) N/A 9.0 ppb (8) N/A 1.0 ppb (1) N/A N/A N/A N/A 14.0
 
Jan. 18, 2020, 10 p.m. 10.7 ppb (10) 4.5 ppb (4) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A N/A 10.0
 
Jan. 18, 2020, 9 p.m. 10.2 ppb (9) 5.2 ppb (5) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A N/A N/A 9.0
 
Jan. 18, 2020, 8 p.m. 11.7 ppb (11) 6.5 ppb (6) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A N/A N/A 11.0
 
Jan. 18, 2020, 7 p.m. 13.1 ppb (12) 7.9 ppb (7) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A N/A N/A 12.0
 
Jan. 18, 2020, 6 p.m. 11.6 ppb (11) 7.6 ppb (7) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A N/A N/A 11.0
 
Jan. 18, 2020, 5 p.m. 12.7 ppb (12) 8.2 ppb (8) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A N/A N/A 12.0
 
Jan. 18, 2020, 4 p.m. 14.3 ppb (13) 9.3 ppb (9) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A N/A N/A 13.0
 
Jan. 18, 2020, 3 p.m. 8.7 ppb (8) 5.6 ppb (5) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A N/A 8.0
 
Jan. 18, 2020, 2 p.m. 7.9 ppb (7) 4.2 ppb (4) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A N/A N/A 7.0
 
Jan. 18, 2020, 1 p.m. 6.9 ppb (6) 3.5 ppb (3) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A N/A 6.0
 
Jan. 18, 2020, noon 7.6 ppb (7) 2.8 ppb (3) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A N/A N/A 7.0
 
Jan. 18, 2020, 11 a.m. 6.7 ppb (6) 2.2 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A N/A N/A 6.0
 
Jan. 18, 2020, 10 a.m. 8.4 ppb (8) 2.5 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A N/A 8.0
 
Jan. 18, 2020, 9 a.m. 7.9 ppb (7) 1.6 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A N/A 7.0
 
Jan. 18, 2020, 8 a.m. 6.9 ppb (6) 0.8 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A N/A 6.0
 
Jan. 18, 2020, 7 a.m. 8.7 ppb (8) 1.8 ppb (2) N/A 7.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A N/A 8.0
 
Jan. 18, 2020, 6 a.m. 8.9 ppb (8) 1.4 ppb (1) N/A 8.0 ppb (7) N/A 1.0 ppb (1) N/A N/A N/A N/A 8.0
 
Jan. 18, 2020, 5 a.m. 9.8 ppb (9) 2.8 ppb (3) N/A 7.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A N/A 9.0
 
Jan. 18, 2020, 4 a.m. 11.3 ppb (10) 3.9 ppb (4) N/A 7.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A N/A 10.0
 
Jan. 18, 2020, 3 a.m. 13.0 ppb (12) 4.6 ppb (4) N/A 8.0 ppb (7) N/A 1.0 ppb (1) N/A N/A N/A N/A 12.0
 
Jan. 18, 2020, 2 a.m. 15.5 ppb (14) 5.8 ppb (5) N/A 10.0 ppb (9) N/A 1.0 ppb (1) N/A N/A N/A N/A 14.0
 
Jan. 18, 2020, 1 a.m. 16.5 ppb (15) 6.4 ppb (6) N/A 10.0 ppb (9) N/A 1.0 ppb (1) N/A N/A N/A N/A 15.0
 
Jan. 18, 2020, midnight 21.9 ppb (20) 9.4 ppb (9) N/A 12.0 ppb (11) N/A 1.0 ppb (1) N/A N/A N/A N/A 20.0
 
Jan. 17, 2020, 11 p.m. 31.4 ppb (29) 14.8 ppb (14) N/A 16.0 ppb (15) N/A 1.0 ppb (1) N/A N/A N/A N/A 29.0
 
Jan. 17, 2020, 10 p.m. 30.5 ppb (28) 14.6 ppb (14) N/A 16.0 ppb (15) N/A 1.0 ppb (1) N/A N/A N/A N/A 28.0
 
Jan. 17, 2020, 9 p.m. 18.0 ppb (17) 5.3 ppb (5) N/A 13.0 ppb (12) N/A 1.0 ppb (1) N/A N/A N/A N/A 17.0
 
Jan. 17, 2020, 8 p.m. 20.4 ppb (19) 8.7 ppb (8) N/A 12.0 ppb (11) N/A 1.0 ppb (1) N/A N/A N/A N/A 19.0
 
Jan. 17, 2020, 7 p.m. 20.8 ppb (19) 8.9 ppb (8) N/A 12.0 ppb (11) N/A 1.0 ppb (1) N/A N/A N/A N/A 19.0
 
Jan. 17, 2020, 6 p.m. 15.1 ppb (14) 5.1 ppb (5) N/A 10.0 ppb (9) N/A 2.0 ppb (3) N/A N/A N/A N/A 14.0
 
Jan. 17, 2020, 5 p.m. 23.9 ppb (22) 11.9 ppb (11) N/A 12.0 ppb (11) N/A 2.0 ppb (3) N/A N/A N/A N/A 22.0
 
Jan. 17, 2020, 4 p.m. 28.9 ppb (27) 15.6 ppb (14) N/A 13.0 ppb (12) N/A 1.0 ppb (1) N/A N/A N/A N/A 27.0
 
Jan. 17, 2020, 3 p.m. 15.2 ppb (14) 5.6 ppb (5) N/A 10.0 ppb (9) N/A 2.0 ppb (3) N/A N/A N/A N/A 14.0
 
Jan. 17, 2020, 2 p.m. 19.1 ppb (18) 5.8 ppb (5) N/A 13.0 ppb (12) N/A 2.0 ppb (3) N/A N/A N/A N/A 18.0
 
Jan. 17, 2020, 1 p.m. 16.6 ppb (15) 3.9 ppb (4) N/A 13.0 ppb (12) N/A 2.0 ppb (3) N/A N/A N/A N/A 15.0
 
Jan. 17, 2020, noon 12.5 ppb (12) 3.3 ppb (3) N/A 9.0 ppb (8) N/A 1.0 ppb (1) N/A N/A N/A N/A 12.0
 
Jan. 17, 2020, 11 a.m. 6.0 ppb (6) -0.1 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A N/A 6.0
 
Jan. 17, 2020, 10 a.m. 4.8 ppb (4) -0.4 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A N/A N/A 5.0
 
Jan. 17, 2020, 9 a.m. 4.9 ppb (5) -0.5 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A N/A N/A 5.0
 
Jan. 17, 2020, 8 a.m. 5.6 ppb (5) -0.5 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A N/A 6.0
 
Jan. 17, 2020, 7 a.m. 4.9 ppb (5) -0.5 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A N/A N/A 5.0
 
Jan. 17, 2020, 6 a.m. 3.8 ppb (4) -0.4 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A N/A N/A 4.0
 
Jan. 17, 2020, 5 a.m. 3.4 ppb (3) -0.5 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A N/A N/A 4.0
 
Jan. 17, 2020, 4 a.m. 3.4 ppb (3) -0.2 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A N/A N/A 4.0
 
Jan. 17, 2020, 3 a.m. 2.5 ppb (2) -0.6 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A N/A 3.0
 
Jan. 17, 2020, 2 a.m. 4.8 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A N/A N/A 4.0
 
Jan. 17, 2020, 1 a.m. 5.1 ppb (5) -0.3 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A N/A N/A 5.0
 
Jan. 17, 2020, midnight 6.1 ppb (6) -0.3 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A N/A 6.0
 
Jan. 16, 2020, 11 p.m. 4.2 ppb (4) -0.5 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A N/A N/A 5.0
 
Jan. 16, 2020, 10 p.m. 4.5 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A N/A N/A 4.0
 
Jan. 16, 2020, 9 p.m. 5.3 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A N/A 5.0
 
Jan. 16, 2020, 8 p.m. 3.7 ppb (3) 1.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A N/A 3.0
 
Jan. 16, 2020, 7 p.m. 2.5 ppb (2) 1.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A N/A 2.0
 
Jan. 16, 2020, 6 p.m. 3.1 ppb (3) 1.2 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A N/A 3.0
 
Jan. 16, 2020, 5 p.m. 5.2 ppb (5) 2.3 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A N/A 5.0
 
Jan. 16, 2020, 4 p.m. 11.6 ppb (11) 6.7 ppb (6) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A N/A N/A 11.0
 
Jan. 16, 2020, 3 p.m. 4.0 ppb (4) 1.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A N/A 4.0
 
Jan. 16, 2020, 2 p.m. 6.4 ppb (6) 1.6 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A N/A N/A 6.0
 
Jan. 16, 2020, 1 p.m. 5.2 ppb (5) 0.1 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A N/A N/A 5.0
 
Jan. 16, 2020, noon 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A N/A N/A 4.0
 
Jan. 16, 2020, 11 a.m. 3.9 ppb (4) -0.3 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A N/A N/A 4.0
 
Jan. 16, 2020, 10 a.m. 2.3 ppb (2) -0.6 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A N/A 3.0
 
Jan. 16, 2020, 9 a.m. 2.2 ppb (2) -0.6 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A N/A 3.0
 
Jan. 16, 2020, 8 a.m. 1.9 ppb (2) -0.6 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A N/A 2.0
 
Jan. 16, 2020, 7 a.m. 1.5 ppb (1) -0.7 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A N/A 2.0
 
Jan. 16, 2020, 6 a.m. 1.7 ppb (2) -0.6 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A N/A 2.0
 
Jan. 16, 2020, 5 a.m. 2.2 ppb (2) -0.4 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A N/A 3.0
 
Jan. 16, 2020, 4 a.m. 2.2 ppb (2) -0.6 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A N/A 3.0
 
Jan. 16, 2020, 3 a.m. 2.6 ppb (2) -0.5 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A N/A 3.0
 
Jan. 16, 2020, 2 a.m. 2.5 ppb (2) -0.5 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A N/A 3.0
 
Jan. 16, 2020, 1 a.m. 3.3 ppb (3) -0.3 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A N/A N/A 4.0
 
Jan. 16, 2020, midnight 2.8 ppb (3) -0.3 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A N/A 3.0
 
Jan. 15, 2020, 11 p.m. 11.5 ppb (11) 3.3 ppb (3) N/A 9.0 ppb (8) N/A 1.0 ppb (1) N/A N/A N/A N/A 11.0
 
Jan. 15, 2020, 10 p.m. 5.5 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A N/A N/A 5.0
 
Jan. 15, 2020, 9 p.m. 4.9 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A N/A N/A 5.0
 
Jan. 15, 2020, 8 p.m. 7.3 ppb (7) 2.6 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A N/A N/A 7.0
 
Jan. 15, 2020, 7 p.m. 25.3 ppb (23) 14.6 ppb (14) N/A 11.0 ppb (10) N/A 1.0 ppb (1) N/A N/A N/A N/A 23.0
 
Jan. 15, 2020, 6 p.m. 42.5 ppb (39) 29.9 ppb (28) N/A 12.0 ppb (11) N/A 1.0 ppb (1) N/A N/A N/A N/A 39.0
 
Jan. 15, 2020, 5 p.m. 40.9 ppb (38) 27.9 ppb (26) N/A 13.0 ppb (12) N/A 1.0 ppb (1) N/A N/A N/A N/A 38.0
 
Jan. 15, 2020, 4 p.m. 45.2 ppb (42) 30.4 ppb (28) N/A 15.0 ppb (14) N/A 1.0 ppb (1) N/A N/A N/A N/A 42.0
 
Jan. 15, 2020, 3 p.m. 58.2 ppb (54) 40.2 ppb (37) N/A 18.0 ppb (17) N/A 1.0 ppb (1) N/A N/A N/A N/A 54.0
 
Jan. 15, 2020, 2 p.m. 67.9 ppb (65) 48.6 ppb (45) N/A 19.0 ppb (18) N/A 1.0 ppb (1) N/A N/A N/A N/A 65.0
 
Jan. 15, 2020, 1 p.m. 62.8 ppb (59) 42.2 ppb (39) N/A 20.0 ppb (19) N/A 1.0 ppb (1) N/A N/A N/A N/A 59.0
 
Jan. 15, 2020, noon 48.2 ppb (45) 29.3 ppb (27) N/A 19.0 ppb (18) N/A 1.0 ppb (1) N/A N/A N/A N/A 45.0
 
Jan. 15, 2020, 11 a.m. 38.8 ppb (36) 20.9 ppb (19) N/A 18.0 ppb (17) N/A 1.0 ppb (1) N/A N/A N/A N/A 36.0
 
Jan. 15, 2020, 10 a.m. 25.6 ppb (24) 10.5 ppb (10) N/A 15.0 ppb (14) N/A 1.0 ppb (1) N/A N/A N/A N/A 24.0
 
Jan. 15, 2020, 9 a.m. 17.2 ppb (16) 5.4 ppb (5) N/A 12.0 ppb (11) N/A 1.0 ppb (1) N/A N/A N/A N/A 16.0
 
Jan. 15, 2020, 8 a.m. 13.4 ppb (12) 3.5 ppb (3) N/A 10.0 ppb (9) N/A 2.0 ppb (3) N/A N/A N/A N/A 12.0
 
Jan. 15, 2020, 7 a.m. 27.5 ppb (25) 9.2 ppb (9) N/A 18.0 ppb (17) N/A 1.0 ppb (1) N/A N/A N/A N/A 25.0
 
Jan. 15, 2020, 6 a.m. 31.1 ppb (29) 6.5 ppb (6) N/A 25.0 ppb (23) N/A 1.0 ppb (1) N/A N/A N/A N/A 29.0
 
Jan. 15, 2020, 5 a.m. 39.6 ppb (37) 13.7 ppb (13) N/A 26.0 ppb (24) N/A 1.0 ppb (1) N/A N/A N/A N/A 37.0
 
Jan. 15, 2020, 4 a.m. 38.1 ppb (35) 11.3 ppb (10) N/A 27.0 ppb (25) N/A 1.0 ppb (1) N/A N/A N/A N/A 35.0
 
Jan. 15, 2020, 3 a.m. 43.4 ppb (40) 16.4 ppb (15) N/A 27.0 ppb (25) N/A 1.0 ppb (1) N/A N/A N/A N/A 40.0
 
Jan. 15, 2020, 2 a.m. 45.2 ppb (42) 20.8 ppb (19) N/A 24.0 ppb (22) N/A 1.0 ppb (1) N/A N/A N/A N/A 42.0
 
Jan. 15, 2020, 1 a.m. 45.3 ppb (42) 23.0 ppb (21) N/A 22.0 ppb (20) N/A 1.0 ppb (1) N/A N/A N/A N/A 42.0
 
Jan. 15, 2020, midnight 31.1 ppb (29) 9.5 ppb (9) N/A 21.0 ppb (19) N/A 1.0 ppb (1) N/A N/A N/A N/A 29.0
 
Jan. 14, 2020, 11 p.m. 17.5 ppb (16) 1.7 ppb (2) N/A 16.0 ppb (15) N/A 1.0 ppb (1) N/A N/A N/A N/A 16.0
 
Jan. 14, 2020, 10 p.m. 16.6 ppb (15) 2.4 ppb (2) N/A 14.0 ppb (13) N/A 1.0 ppb (1) N/A N/A N/A N/A 15.0
 
Jan. 14, 2020, 9 p.m. 30.7 ppb (28) 14.1 ppb (13) N/A 17.0 ppb (16) N/A 1.0 ppb (1) N/A N/A N/A N/A 28.0
 
Jan. 14, 2020, 8 p.m. 34.7 ppb (32) 19.5 ppb (18) N/A 15.0 ppb (14) N/A 1.0 ppb (1) N/A N/A N/A N/A 32.0
 
Jan. 14, 2020, 7 p.m. 30.0 ppb (28) 16.8 ppb (16) N/A 13.0 ppb (12) N/A 1.0 ppb (1) N/A N/A N/A N/A 28.0
 
Jan. 14, 2020, 6 p.m. 41.5 ppb (38) 24.6 ppb (23) N/A 17.0 ppb (16) N/A 1.0 ppb (1) N/A N/A N/A N/A 38.0
 
Jan. 14, 2020, 5 p.m. 14.9 ppb (14) 5.7 ppb (5) N/A 9.0 ppb (8) N/A 1.0 ppb (1) N/A N/A N/A N/A 14.0
 
Jan. 14, 2020, 4 p.m. 14.5 ppb (13) 6.8 ppb (6) N/A 8.0 ppb (7) N/A 1.0 ppb (1) N/A N/A N/A N/A 13.0
 
Jan. 14, 2020, 3 p.m. 63.0 ppb (60) 46.3 ppb (43) N/A 17.0 ppb (16) N/A 2.0 ppb (3) N/A N/A N/A N/A 60.0
 
Jan. 14, 2020, 2 p.m. 62.3 ppb (59) 43.6 ppb (40) N/A 18.0 ppb (17) N/A 1.0 ppb (1) N/A N/A N/A N/A 59.0
 
Jan. 14, 2020, 1 p.m. 75.7 ppb (73) 53.4 ppb (49) N/A 22.0 ppb (20) N/A 1.0 ppb (1) N/A N/A N/A N/A 73.0
 
Jan. 14, 2020, noon 62.2 ppb (59) 43.7 ppb (40) N/A 18.0 ppb (17) N/A 1.0 ppb (1) N/A N/A N/A N/A 59.0
 
Jan. 14, 2020, 11 a.m. 39.7 ppb (37) 22.1 ppb (20) N/A 17.0 ppb (16) N/A 1.0 ppb (1) N/A N/A N/A N/A 37.0
 
Jan. 14, 2020, 10 a.m. 28.6 ppb (26) 13.1 ppb (12) N/A 15.0 ppb (14) N/A 1.0 ppb (1) N/A N/A N/A N/A 26.0
 
Jan. 14, 2020, 9 a.m. 17.1 ppb (16) 4.1 ppb (4) N/A 13.0 ppb (12) N/A 1.0 ppb (1) N/A N/A N/A N/A 16.0
 
Jan. 14, 2020, 8 a.m. 14.5 ppb (13) 6.0 ppb (6) N/A 9.0 ppb (8) N/A 1.0 ppb (1) N/A N/A N/A N/A 13.0
 
Jan. 14, 2020, 7 a.m. 16.2 ppb (15) 4.6 ppb (4) N/A 12.0 ppb (11) N/A 1.0 ppb (1) N/A N/A N/A N/A 15.0
 
Jan. 14, 2020, 6 a.m. 24.5 ppb (23) 10.9 ppb (10) N/A 14.0 ppb (13) N/A 1.0 ppb (1) N/A N/A N/A N/A 23.0
 
Jan. 14, 2020, 5 a.m. 19.1 ppb (18) 8.4 ppb (8) N/A 11.0 ppb (10) N/A 1.0 ppb (1) N/A N/A N/A N/A 18.0
 
Jan. 14, 2020, 4 a.m. 17.5 ppb (16) 7.9 ppb (7) N/A 10.0 ppb (9) N/A 1.0 ppb (1) N/A N/A N/A N/A 16.0
 
Jan. 14, 2020, 3 a.m. 22.8 ppb (21) 9.5 ppb (9) N/A 13.0 ppb (12) N/A 1.0 ppb (1) N/A N/A N/A N/A 21.0
 
Jan. 14, 2020, 2 a.m. 33.8 ppb (31) 16.5 ppb (15) N/A 17.0 ppb (16) N/A 1.0 ppb (1) N/A N/A N/A N/A 31.0
 
Jan. 14, 2020, 1 a.m. 25.1 ppb (23) 11.9 ppb (11) N/A 13.0 ppb (12) N/A 1.0 ppb (1) N/A N/A N/A N/A 23.0
 
Jan. 14, 2020, midnight 27.8 ppb (26) 14.1 ppb (13) N/A 14.0 ppb (13) N/A 1.0 ppb (1) N/A N/A N/A N/A 26.0
 
Jan. 13, 2020, 11 p.m. 36.8 ppb (34) 20.7 ppb (19) N/A 16.0 ppb (15) N/A 1.0 ppb (1) N/A N/A N/A N/A 34.0
 
Jan. 13, 2020, 10 p.m. 35.5 ppb (33) 21.8 ppb (20) N/A 14.0 ppb (13) N/A 1.0 ppb (1) N/A N/A N/A N/A 33.0
 
Jan. 13, 2020, 9 p.m. 38.1 ppb (35) 22.8 ppb (21) N/A 15.0 ppb (14) N/A 1.0 ppb (1) N/A N/A N/A N/A 35.0
 
Jan. 13, 2020, 8 p.m. 44.4 ppb (41) 28.0 ppb (26) N/A 16.0 ppb (15) N/A 1.0 ppb (1) N/A N/A N/A N/A 41.0
 
Jan. 13, 2020, 7 p.m. 36.1 ppb (33) 22.6 ppb (21) N/A 13.0 ppb (12) N/A 1.0 ppb (1) N/A N/A N/A N/A 33.0
 
Jan. 13, 2020, 6 p.m. 39.7 ppb (37) 24.6 ppb (23) N/A 15.0 ppb (14) N/A 1.0 ppb (1) N/A N/A N/A N/A 37.0
 
Jan. 13, 2020, 5 p.m. 56.9 ppb (53) 37.4 ppb (35) N/A 19.0 ppb (18) N/A 2.0 ppb (3) N/A N/A N/A N/A 53.0
 
Jan. 13, 2020, 4 p.m. 52.1 ppb (48) 35.2 ppb (33) N/A 17.0 ppb (16) N/A 3.0 ppb (4) N/A N/A N/A N/A 48.0
 
Jan. 13, 2020, 3 p.m. 48.3 ppb (45) 31.5 ppb (29) N/A 17.0 ppb (16) N/A 4.0 ppb (6) N/A N/A N/A N/A 45.0
 
Jan. 13, 2020, 2 p.m. 45.3 ppb (42) 28.1 ppb (26) N/A 17.0 ppb (16) N/A 4.0 ppb (6) N/A N/A N/A N/A 42.0
 
Jan. 13, 2020, 1 p.m. 36.3 ppb (34) 20.9 ppb (19) N/A 15.0 ppb (14) N/A 5.0 ppb (7) N/A N/A N/A N/A 34.0
 
Jan. 13, 2020, noon 30.4 ppb (28) 17.5 ppb (16) N/A 13.0 ppb (12) N/A 4.0 ppb (6) N/A N/A N/A N/A 28.0
 
Jan. 13, 2020, 11 a.m. 18.3 ppb (17) 9.7 ppb (9) N/A 9.0 ppb (8) N/A 2.0 ppb (3) N/A N/A N/A N/A 17.0
 
Jan. 13, 2020, 10 a.m. 11.5 ppb (11) 5.0 ppb (5) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A N/A 11.0
 
Jan. 13, 2020, 9 a.m. 6.6 ppb (6) 2.8 ppb (3) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A N/A N/A 6.0
 
Jan. 13, 2020, 8 a.m. 5.4 ppb (5) 2.5 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A N/A 5.0
 
Jan. 13, 2020, 7 a.m. 3.6 ppb (3) 1.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A N/A 3.0
 
Jan. 13, 2020, 6 a.m. 3.4 ppb (3) 1.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A N/A 3.0
 
Jan. 13, 2020, 5 a.m. 5.5 ppb (5) 2.9 ppb (3) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A N/A 5.0
 
Jan. 13, 2020, 4 a.m. 4.7 ppb (4) 2.2 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A N/A 4.0
 
Jan. 13, 2020, 3 a.m. 8.4 ppb (8) 3.8 ppb (4) N/A 5.0 ppb (5) N/A 2.0 ppb (3) N/A N/A N/A N/A 8.0
 
Jan. 13, 2020, 2 a.m. 12.8 ppb (12) 5.1 ppb (5) N/A 8.0 ppb (7) N/A 4.0 ppb (6) N/A N/A N/A N/A 12.0
 
Jan. 13, 2020, 1 a.m. 16.4 ppb (15) 8.2 ppb (8) N/A 8.0 ppb (7) N/A 3.0 ppb (4) N/A N/A N/A N/A 15.0
 
Jan. 13, 2020, midnight 19.1 ppb (18) 10.4 ppb (10) N/A 9.0 ppb (8) N/A 3.0 ppb (4) N/A N/A N/A N/A 18.0
 
Jan. 12, 2020, 11 p.m. 26.2 ppb (24) 14.7 ppb (14) N/A 11.0 ppb (10) N/A 3.0 ppb (4) N/A N/A N/A N/A 24.0
 
Jan. 12, 2020, 10 p.m. 28.0 ppb (26) 16.0 ppb (15) N/A 12.0 ppb (11) N/A 3.0 ppb (4) N/A N/A N/A N/A 26.0
 
Jan. 12, 2020, 9 p.m. 25.1 ppb (23) 15.5 ppb (14) N/A 9.0 ppb (8) N/A 2.0 ppb (3) N/A N/A N/A N/A 23.0
 
Jan. 12, 2020, 8 p.m. 25.6 ppb (24) 15.7 ppb (15) N/A 10.0 ppb (9) N/A 2.0 ppb (3) N/A N/A N/A N/A 24.0
 
Jan. 12, 2020, 7 p.m. 25.9 ppb (24) 15.6 ppb (14) N/A 10.0 ppb (9) N/A 2.0 ppb (3) N/A N/A N/A N/A 24.0
 
Jan. 12, 2020, 6 p.m. 26.7 ppb (25) 16.1 ppb (15) N/A 10.0 ppb (9) N/A 2.0 ppb (3) N/A N/A N/A N/A 25.0
 
Jan. 12, 2020, 5 p.m. 22.8 ppb (21) 13.7 ppb (13) N/A 9.0 ppb (8) N/A 2.0 ppb (3) N/A N/A N/A N/A 21.0
 
Jan. 12, 2020, 4 p.m. 27.7 ppb (26) 15.6 ppb (14) N/A 12.0 ppb (11) N/A 1.0 ppb (1) N/A N/A N/A N/A 26.0
 
Jan. 12, 2020, 3 p.m. 18.5 ppb (17) 9.6 ppb (9) N/A 9.0 ppb (8) N/A 1.0 ppb (1) N/A N/A N/A N/A 17.0
 
Jan. 12, 2020, 2 p.m. 22.3 ppb (21) 12.8 ppb (12) N/A 9.0 ppb (8) N/A 1.0 ppb (1) N/A N/A N/A N/A 21.0
 
Jan. 12, 2020, 1 p.m. 13.5 ppb (12) 6.9 ppb (6) N/A 7.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A N/A 12.0
 
Jan. 12, 2020, noon 11.4 ppb (11) 4.8 ppb (4) N/A 7.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A N/A 11.0
 
Jan. 12, 2020, 11 a.m. 9.4 ppb (9) 3.5 ppb (3) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A N/A 9.0
 
Jan. 12, 2020, 10 a.m. 6.6 ppb (6) 3.0 ppb (3) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A N/A N/A 6.0
 
Jan. 12, 2020, 9 a.m. 6.4 ppb (6) 2.7 ppb (3) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A N/A N/A 6.0
 
Jan. 12, 2020, 8 a.m. 7.7 ppb (7) 2.9 ppb (3) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A N/A N/A 7.0
 
Jan. 12, 2020, 7 a.m. 7.6 ppb (7) 2.3 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A N/A N/A 7.0
 
Jan. 12, 2020, 6 a.m. 11.6 ppb (11) 5.1 ppb (5) N/A 7.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A N/A 11.0
 
Jan. 12, 2020, 5 a.m. 10.1 ppb (9) 3.1 ppb (3) N/A 7.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A N/A 9.0
 
Jan. 12, 2020, 4 a.m. 7.8 ppb (7) 2.2 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A N/A 7.0
 
Jan. 12, 2020, 3 a.m. 9.7 ppb (9) 3.1 ppb (3) N/A 7.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A N/A 9.0
 
Jan. 12, 2020, 2 a.m. 9.4 ppb (9) 2.6 ppb (2) N/A 7.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A N/A 9.0
 
Jan. 12, 2020, 1 a.m. 7.2 ppb (7) 1.9 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A N/A N/A 7.0