AQSQID: 080677001

Site Name: Ute 1

Location: Durango, CO

Reporting: True, Located: True

Current AQI: 21.0

Durango CO, US: 37.13678, -107.62863

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 22, 2019, 5 a.m. 4.3 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 27.0 ppb (21) 0.13 ppb (1) N/A N/A 21.0
 
March 22, 2019, 4 a.m. 4.9 ppb (5) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 25.0 ppb (19) 0.15 ppb (2) N/A N/A 19.0
 
March 22, 2019, 3 a.m. 4.1 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 31.0 ppb (24) 0.12 ppb (1) N/A N/A 24.0
 
March 22, 2019, 2 a.m. 4.6 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 35.0 ppb (27) 0.12 ppb (1) N/A N/A 27.0
 
March 22, 2019, 1 a.m. 5.7 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 41.0 ppb (32) 0.16 ppb (2) N/A N/A 32.0
 
March 22, 2019, midnight 1.5 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 52.0 ppb (40) 0.1 ppb (1) N/A N/A 40.0
 
March 21, 2019, 11 p.m. 2.4 ppb (2) 0.9 ppb (1) N/A 1.0 ppb (1) N/A N/A 52.0 ppb (40) 0.11 ppb (1) N/A N/A 40.0
 
March 21, 2019, 10 p.m. 3.9 ppb (4) 1.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (36) 0.12 ppb (1) N/A N/A 36.0
 
March 21, 2019, 9 p.m. 4.5 ppb (4) 1.1 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.12 ppb (1) N/A N/A 4.0
 
March 21, 2019, 8 p.m. 4.0 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.12 ppb (1) N/A N/A 4.0
 
March 21, 2019, 7 p.m. 1.9 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A 0.09 ppb (1) N/A N/A 2.0
 
March 21, 2019, 6 p.m. 2.4 ppb (2) 1.4 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A 0.12 ppb (1) N/A N/A 2.0
 
March 21, 2019, 5 p.m. 1.4 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.11 ppb (1) N/A N/A 1.0
 
March 21, 2019, 4 p.m. 1.8 ppb (2) 0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.1 ppb (1) N/A N/A 2.0
 
March 21, 2019, 3 p.m. 2.0 ppb (2) 0.9 ppb (1) N/A 1.0 ppb (1) N/A N/A N/A 0.11 ppb (1) N/A N/A 2.0
 
March 21, 2019, 2 p.m. 4.1 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.12 ppb (1) N/A N/A 4.0
 
March 21, 2019, 1 p.m. 9.8 ppb (9) 1.1 ppb (1) N/A 9.0 ppb (8) N/A N/A N/A 0.16 ppb (2) N/A N/A 9.0
 
March 21, 2019, noon 10.0 ppb (9) 0.7 ppb (1) N/A 9.0 ppb (8) N/A N/A N/A 0.18 ppb (2) N/A N/A 9.0
 
March 21, 2019, 11 a.m. 7.6 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A N/A N/A 0.18 ppb (2) N/A N/A 7.0
 
March 21, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
March 21, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
March 21, 2019, 8 a.m. 1.9 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.11 ppb (1) N/A N/A 2.0
 
March 21, 2019, 7 a.m. 1.8 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.12 ppb (1) N/A N/A 2.0
 
March 21, 2019, 6 a.m. 1.9 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.12 ppb (1) N/A N/A 2.0
 
March 21, 2019, 5 a.m. 2.1 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.12 ppb (1) N/A N/A 2.0
 
March 21, 2019, 4 a.m. 3.4 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.13 ppb (1) N/A N/A 3.0
 
March 21, 2019, 3 a.m. 4.4 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.13 ppb (1) N/A N/A 4.0
 
March 21, 2019, 2 a.m. 3.5 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.14 ppb (2) N/A N/A 3.0
 
March 21, 2019, 1 a.m. 4.7 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.11 ppb (1) N/A N/A 4.0
 
March 21, 2019, midnight 2.9 ppb (3) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.1 ppb (1) N/A N/A 3.0
 
March 20, 2019, 11 p.m. 11.5 ppb (11) 7.4 ppb (7) N/A 4.0 ppb (4) N/A N/A N/A 0.14 ppb (2) N/A N/A 11.0
 
March 20, 2019, 10 p.m. 2.5 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A 0.11 ppb (1) N/A N/A 2.0
 
March 20, 2019, 9 p.m. 1.7 ppb (2) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.1 ppb (1) N/A N/A 2.0
 
March 20, 2019, 8 p.m. 1.5 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.09 ppb (1) N/A N/A 1.0
 
March 20, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
March 20, 2019, 6 p.m. 4.3 ppb (4) 1.5 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.09 ppb (1) N/A N/A 4.0
 
March 20, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
March 20, 2019, 4 p.m. 4.4 ppb (4) 1.3 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.13 ppb (1) N/A N/A 4.0
 
March 20, 2019, 3 p.m. 6.7 ppb (6) 2.1 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A 0.17 ppb (2) N/A N/A 6.0
 
March 20, 2019, 2 p.m. 8.0 ppb (7) 2.4 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A 0.18 ppb (2) N/A N/A 7.0
 
March 20, 2019, 1 p.m. 14.5 ppb (13) 5.1 ppb (5) N/A 9.0 ppb (8) N/A N/A N/A 0.15 ppb (2) N/A N/A 13.0
 
March 20, 2019, noon 11.9 ppb (11) 3.3 ppb (3) N/A 9.0 ppb (8) N/A N/A N/A 0.15 ppb (2) N/A N/A 11.0
 
March 20, 2019, 11 a.m. 7.3 ppb (7) 0.9 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.19 ppb (2) N/A N/A 7.0
 
March 20, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
March 20, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
March 20, 2019, 8 a.m. 5.2 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.13 ppb (1) N/A N/A 5.0
 
March 20, 2019, 7 a.m. 4.2 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.13 ppb (1) N/A N/A 4.0
 
March 20, 2019, 5 a.m. 4.2 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.12 ppb (1) N/A N/A 4.0
 
March 20, 2019, 4 a.m. 3.5 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.12 ppb (1) N/A N/A 3.0
 
March 20, 2019, 3 a.m. 7.0 ppb (6) 1.1 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.13 ppb (1) N/A N/A 6.0
 
March 20, 2019, 2 a.m. 3.2 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.11 ppb (1) N/A N/A 3.0
 
March 20, 2019, 1 a.m. 3.9 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.12 ppb (1) N/A N/A 4.0
 
March 20, 2019, midnight 1.7 ppb (2) 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.11 ppb (1) N/A N/A 2.0
 
March 19, 2019, 11 p.m. 1.7 ppb (2) 0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.11 ppb (1) N/A N/A 2.0
 
March 19, 2019, 10 p.m. 2.8 ppb (3) 1.1 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A 0.11 ppb (1) N/A N/A 3.0
 
March 19, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
March 19, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
March 19, 2019, 7 p.m. 1.1 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (32) 0.1 ppb (1) N/A N/A 32.0
 
March 19, 2019, 6 p.m. 1.7 ppb (2) 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (32) 0.1 ppb (1) N/A N/A 32.0
 
March 19, 2019, 5 p.m. 5.2 ppb (5) 1.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (28) 0.12 ppb (1) N/A N/A 28.0
 
March 19, 2019, 4 p.m. 4.4 ppb (4) 1.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (28) 0.12 ppb (1) N/A N/A 28.0
 
March 19, 2019, 3 p.m. 5.8 ppb (5) 1.8 ppb (2) N/A 4.0 ppb (4) N/A N/A 32.0 ppb (25) 0.13 ppb (1) N/A N/A 25.0
 
Jan. 23, 2019, 10 p.m. 7.7 ppb (7) 2.8 ppb (3) N/A 5.0 ppb (5) N/A N/A N/A 0.19 ppb (2) N/A N/A 7.0
 
Jan. 23, 2019, 9 p.m. 7.7 ppb (7) 3.2 ppb (3) N/A 4.0 ppb (4) N/A N/A N/A 0.18 ppb (2) N/A N/A 7.0
 
Jan. 23, 2019, 8 p.m. 6.8 ppb (6) 3.0 ppb (3) N/A 4.0 ppb (4) N/A N/A N/A 0.18 ppb (2) N/A N/A 6.0
 
Jan. 23, 2019, 7 p.m. 6.9 ppb (6) 3.4 ppb (3) N/A 4.0 ppb (4) N/A N/A N/A 0.18 ppb (2) N/A N/A 6.0
 
Jan. 23, 2019, 6 p.m. 12.0 ppb (11) 6.6 ppb (6) N/A 5.0 ppb (5) N/A N/A N/A 0.19 ppb (2) N/A N/A 11.0
 
Jan. 23, 2019, 5 p.m. 18.7 ppb (17) 10.0 ppb (9) N/A 9.0 ppb (8) N/A N/A N/A 0.23 ppb (3) N/A N/A 17.0
 
Jan. 23, 2019, 4 p.m. 14.6 ppb (14) 6.9 ppb (6) N/A 8.0 ppb (7) N/A N/A N/A 0.24 ppb (3) N/A N/A 14.0
 
Jan. 23, 2019, 3 p.m. 10.4 ppb (10) 3.9 ppb (4) N/A 6.0 ppb (6) N/A N/A N/A 0.25 ppb (3) N/A N/A 10.0
 
Jan. 23, 2019, 2 p.m. 9.1 ppb (8) 2.0 ppb (2) N/A 7.0 ppb (6) N/A N/A N/A 0.23 ppb (3) N/A N/A 8.0
 
Jan. 23, 2019, 1 p.m. 11.1 ppb (10) 2.8 ppb (3) N/A 8.0 ppb (7) N/A N/A N/A 0.21 ppb (2) N/A N/A 10.0
 
Jan. 23, 2019, noon 8.1 ppb (8) 1.8 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A 0.19 ppb (2) N/A N/A 8.0
 
Jan. 23, 2019, 11 a.m. 5.6 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.19 ppb (2) N/A N/A 5.0
 
Jan. 23, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Jan. 23, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Jan. 23, 2019, 8 a.m. 9.7 ppb (9) 1.5 ppb (1) N/A 8.0 ppb (7) N/A N/A N/A 0.21 ppb (2) N/A N/A 9.0
 
Jan. 23, 2019, 7 a.m. 7.1 ppb (7) 0.9 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.2 ppb (2) N/A N/A 7.0
 
Jan. 23, 2019, 5 a.m. 7.7 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A N/A N/A 0.22 ppb (2) N/A N/A 7.0
 
Jan. 23, 2019, 4 a.m. 9.8 ppb (9) 1.2 ppb (1) N/A 9.0 ppb (8) N/A N/A N/A 0.23 ppb (3) N/A N/A 9.0
 
Jan. 23, 2019, 3 a.m. 11.2 ppb (10) 1.3 ppb (1) N/A 10.0 ppb (9) N/A N/A N/A 0.22 ppb (2) N/A N/A 10.0
 
Jan. 23, 2019, 2 a.m. 10.6 ppb (10) 1.3 ppb (1) N/A 9.0 ppb (8) N/A N/A N/A 0.22 ppb (2) N/A N/A 10.0
 
Jan. 23, 2019, 1 a.m. 8.9 ppb (8) 0.9 ppb (1) N/A 8.0 ppb (7) N/A N/A N/A 0.23 ppb (3) N/A N/A 8.0
 
Jan. 23, 2019, midnight 8.1 ppb (8) 1.1 ppb (1) N/A 7.0 ppb (6) N/A N/A N/A 0.21 ppb (2) N/A N/A 8.0
 
Jan. 22, 2019, 11 p.m. 4.9 ppb (5) 1.3 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.16 ppb (2) N/A N/A 5.0
 
Jan. 22, 2019, 10 p.m. 4.7 ppb (4) 1.9 ppb (2) N/A 3.0 ppb (3) N/A N/A N/A 0.15 ppb (2) N/A N/A 4.0
 
Jan. 22, 2019, 9 p.m. 4.1 ppb (4) 1.9 ppb (2) N/A 2.0 ppb (2) N/A N/A N/A 0.15 ppb (2) N/A N/A 4.0
 
Jan. 22, 2019, 8 p.m. 5.5 ppb (5) 2.7 ppb (3) N/A 3.0 ppb (3) N/A N/A N/A 0.16 ppb (2) N/A N/A 5.0
 
Jan. 22, 2019, 7 p.m. 7.0 ppb (6) 3.6 ppb (3) N/A 3.0 ppb (3) N/A N/A N/A 0.15 ppb (2) N/A N/A 6.0
 
Jan. 22, 2019, 6 p.m. 7.2 ppb (7) 3.5 ppb (3) N/A 4.0 ppb (4) N/A N/A N/A 0.17 ppb (2) N/A N/A 7.0
 
Jan. 22, 2019, 5 p.m. 11.2 ppb (10) 5.7 ppb (5) N/A 6.0 ppb (6) N/A N/A N/A 0.19 ppb (2) N/A N/A 10.0
 
Jan. 22, 2019, 4 p.m. 7.7 ppb (7) 3.1 ppb (3) N/A 5.0 ppb (5) N/A N/A N/A 0.18 ppb (2) N/A N/A 7.0
 
Jan. 22, 2019, 3 p.m. 5.9 ppb (5) 1.8 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A 0.2 ppb (2) N/A N/A 5.0
 
Jan. 22, 2019, 2 p.m. 5.1 ppb (5) 1.2 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.18 ppb (2) N/A N/A 5.0
 
Jan. 22, 2019, 1 p.m. 6.7 ppb (6) 0.9 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.18 ppb (2) N/A N/A 6.0
 
Jan. 22, 2019, noon 5.3 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.15 ppb (2) N/A N/A 5.0
 
Jan. 22, 2019, 11 a.m. 6.9 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.14 ppb (2) N/A N/A 6.0
 
Jan. 22, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Jan. 22, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Jan. 22, 2019, 8 a.m. 5.3 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.16 ppb (2) N/A N/A 5.0
 
Jan. 22, 2019, 7 a.m. 4.8 ppb (4) 0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.17 ppb (2) N/A N/A 5.0
 
Jan. 22, 2019, 5 a.m. 6.0 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A 0.18 ppb (2) N/A N/A 6.0
 
Jan. 22, 2019, 4 a.m. 8.0 ppb (7) 0.3 ppb (0) N/A 8.0 ppb (7) N/A N/A N/A 0.18 ppb (2) N/A N/A 7.0
 
Jan. 22, 2019, 3 a.m. 4.2 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.16 ppb (2) N/A N/A 4.0
 
Jan. 22, 2019, 2 a.m. 4.6 ppb (4) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.15 ppb (2) N/A N/A 4.0
 
Jan. 22, 2019, 1 a.m. 5.3 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.17 ppb (2) N/A N/A 5.0
 
Jan. 22, 2019, midnight 2.6 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.14 ppb (2) N/A N/A 2.0
 
Jan. 21, 2019, 11 p.m. 4.5 ppb (4) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.14 ppb (2) N/A N/A 4.0
 
Jan. 21, 2019, 10 p.m. 2.3 ppb (2) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A 0.13 ppb (1) N/A N/A 2.0
 
Jan. 21, 2019, 9 p.m. 2.2 ppb (2) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A 0.14 ppb (2) N/A N/A 2.0
 
Jan. 21, 2019, 8 p.m. 3.1 ppb (3) 1.3 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A 0.13 ppb (1) N/A N/A 3.0
 
Jan. 21, 2019, 7 p.m. 10.1 ppb (9) 4.2 ppb (4) N/A 6.0 ppb (6) N/A N/A N/A 0.16 ppb (2) N/A N/A 9.0
 
Jan. 21, 2019, 6 p.m. 18.2 ppb (17) 8.0 ppb (7) N/A 10.0 ppb (9) N/A N/A N/A 0.17 ppb (2) N/A N/A 17.0
 
Jan. 21, 2019, 5 p.m. 15.2 ppb (14) 7.8 ppb (7) N/A 7.0 ppb (6) N/A N/A N/A 0.18 ppb (2) N/A N/A 14.0
 
Jan. 21, 2019, 4 p.m. 12.1 ppb (11) 5.7 ppb (5) N/A 6.0 ppb (6) N/A N/A N/A 0.18 ppb (2) N/A N/A 11.0
 
Jan. 21, 2019, 3 p.m. 12.0 ppb (11) 4.8 ppb (4) N/A 7.0 ppb (6) N/A N/A N/A 0.18 ppb (2) N/A N/A 11.0
 
Jan. 21, 2019, 2 p.m. 25.6 ppb (24) 7.6 ppb (7) N/A 18.0 ppb (17) N/A N/A N/A 0.28 ppb (3) N/A N/A 24.0
 
Jan. 21, 2019, 1 p.m. 15.9 ppb (15) 2.3 ppb (2) N/A 14.0 ppb (13) N/A N/A N/A 0.2 ppb (2) N/A N/A 15.0
 
Jan. 21, 2019, noon 16.8 ppb (16) 2.4 ppb (2) N/A 14.0 ppb (13) N/A N/A N/A 0.21 ppb (2) N/A N/A 16.0
 
Jan. 21, 2019, 11 a.m. 13.4 ppb (12) 1.8 ppb (2) N/A 12.0 ppb (11) N/A N/A N/A 0.22 ppb (2) N/A N/A 12.0
 
Jan. 21, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Jan. 21, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Jan. 21, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Jan. 21, 2019, 7 a.m. 12.6 ppb (12) 1.4 ppb (1) N/A 11.0 ppb (10) N/A N/A N/A 0.2 ppb (2) N/A N/A 12.0
 
Jan. 21, 2019, 5 a.m. 11.4 ppb (11) 1.4 ppb (1) N/A 10.0 ppb (9) N/A N/A N/A 0.21 ppb (2) N/A N/A 11.0
 
Jan. 21, 2019, 4 a.m. 12.5 ppb (12) 2.5 ppb (2) N/A 10.0 ppb (9) N/A N/A N/A 0.21 ppb (2) N/A N/A 12.0
 
Jan. 21, 2019, 3 a.m. 13.0 ppb (12) 2.1 ppb (2) N/A 11.0 ppb (10) N/A N/A N/A 0.22 ppb (2) N/A N/A 12.0
 
Jan. 21, 2019, 2 a.m. 13.0 ppb (12) 2.9 ppb (3) N/A 10.0 ppb (9) N/A N/A N/A 0.21 ppb (2) N/A N/A 12.0
 
Jan. 21, 2019, 1 a.m. 9.5 ppb (9) 0.9 ppb (1) N/A 9.0 ppb (8) N/A N/A N/A 0.18 ppb (2) N/A N/A 9.0
 
Jan. 21, 2019, midnight 10.3 ppb (10) 1.0 ppb (1) N/A 9.0 ppb (8) N/A N/A N/A 0.19 ppb (2) N/A N/A 10.0
 
Jan. 20, 2019, 11 p.m. 9.1 ppb (8) 1.7 ppb (2) N/A 7.0 ppb (6) N/A N/A N/A 0.17 ppb (2) N/A N/A 8.0
 
Jan. 20, 2019, 10 p.m. 7.2 ppb (7) 2.1 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A 0.15 ppb (2) N/A N/A 7.0
 
Jan. 20, 2019, 9 p.m. 8.8 ppb (8) 3.0 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A 0.15 ppb (2) N/A N/A 8.0
 
Jan. 20, 2019, 8 p.m. 4.1 ppb (4) 1.4 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.15 ppb (2) N/A N/A 4.0
 
Jan. 20, 2019, 7 p.m. 15.4 ppb (14) 7.3 ppb (7) N/A 8.0 ppb (7) N/A N/A N/A 0.2 ppb (2) N/A N/A 14.0
 
Jan. 20, 2019, 6 p.m. 19.4 ppb (18) 9.8 ppb (9) N/A 10.0 ppb (9) N/A N/A N/A 0.23 ppb (3) N/A N/A 18.0
 
Jan. 20, 2019, 5 p.m. 19.9 ppb (18) 10.5 ppb (10) N/A 9.0 ppb (8) N/A N/A N/A 0.24 ppb (3) N/A N/A 18.0
 
Jan. 20, 2019, 4 p.m. 17.9 ppb (17) 9.2 ppb (9) N/A 9.0 ppb (8) N/A N/A N/A 0.2 ppb (2) N/A N/A 17.0
 
Jan. 20, 2019, 3 p.m. 9.1 ppb (8) 3.3 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A 0.19 ppb (2) N/A N/A 8.0
 
Jan. 20, 2019, 2 p.m. 10.8 ppb (10) 2.3 ppb (2) N/A 8.0 ppb (7) N/A N/A N/A 0.23 ppb (3) N/A N/A 10.0
 
Jan. 20, 2019, 1 p.m. 7.9 ppb (7) 0.6 ppb (1) N/A 7.0 ppb (6) N/A N/A N/A 0.19 ppb (2) N/A N/A 7.0
 
Jan. 20, 2019, noon 7.9 ppb (7) 0.8 ppb (1) N/A 7.0 ppb (6) N/A N/A N/A 0.19 ppb (2) N/A N/A 7.0
 
Jan. 20, 2019, 11 a.m. 9.9 ppb (9) 2.2 ppb (2) N/A 8.0 ppb (7) N/A N/A N/A 0.18 ppb (2) N/A N/A 9.0
 
Jan. 20, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Jan. 20, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Jan. 20, 2019, 8 a.m. 12.9 ppb (12) 2.4 ppb (2) N/A 10.0 ppb (9) N/A N/A N/A 0.2 ppb (2) N/A N/A 12.0
 
Jan. 20, 2019, 7 a.m. 14.4 ppb (13) 2.9 ppb (3) N/A 11.0 ppb (10) N/A N/A N/A 0.22 ppb (2) N/A N/A 13.0
 
Jan. 20, 2019, 5 a.m. 7.8 ppb (7) 1.0 ppb (1) N/A 7.0 ppb (6) N/A N/A N/A 0.2 ppb (2) N/A N/A 7.0
 
Jan. 20, 2019, 4 a.m. 9.8 ppb (9) 2.4 ppb (2) N/A 7.0 ppb (6) N/A N/A N/A 0.19 ppb (2) N/A N/A 9.0
 
Jan. 20, 2019, 3 a.m. 5.8 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.18 ppb (2) N/A N/A 5.0
 
Jan. 20, 2019, 2 a.m. 7.9 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A N/A N/A 0.19 ppb (2) N/A N/A 7.0
 
Jan. 20, 2019, 1 a.m. 11.9 ppb (11) 0.6 ppb (1) N/A 11.0 ppb (10) N/A N/A N/A 0.17 ppb (2) N/A N/A 11.0
 
Jan. 20, 2019, midnight 17.9 ppb (17) 1.6 ppb (1) N/A 16.0 ppb (15) N/A N/A N/A 0.19 ppb (2) N/A N/A 17.0
 
Jan. 19, 2019, 11 p.m. 10.7 ppb (10) 3.3 ppb (3) N/A 7.0 ppb (6) N/A N/A N/A 0.16 ppb (2) N/A N/A 10.0
 
Jan. 19, 2019, 10 p.m. 4.6 ppb (4) 1.6 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.14 ppb (2) N/A N/A 4.0
 
Jan. 19, 2019, 9 p.m. 5.7 ppb (5) 2.1 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A 0.14 ppb (2) N/A N/A 5.0
 
Jan. 19, 2019, 8 p.m. 10.5 ppb (10) 4.4 ppb (4) N/A 6.0 ppb (6) N/A N/A N/A 0.14 ppb (2) N/A N/A 10.0
 
Jan. 19, 2019, 7 p.m. 9.0 ppb (8) 4.3 ppb (4) N/A 5.0 ppb (5) N/A N/A N/A 0.14 ppb (2) N/A N/A 8.0
 
Jan. 19, 2019, 6 p.m. 14.4 ppb (13) 7.4 ppb (7) N/A 7.0 ppb (6) N/A N/A N/A 0.17 ppb (2) N/A N/A 13.0
 
Jan. 19, 2019, 5 p.m. 12.7 ppb (12) 6.3 ppb (6) N/A 6.0 ppb (6) N/A N/A N/A 0.16 ppb (2) N/A N/A 12.0
 
Jan. 19, 2019, 4 p.m. 11.9 ppb (11) 5.3 ppb (5) N/A 7.0 ppb (6) N/A N/A N/A 0.17 ppb (2) N/A N/A 11.0
 
Jan. 19, 2019, 3 p.m. 14.5 ppb (13) 6.0 ppb (6) N/A 8.0 ppb (7) N/A N/A N/A 0.16 ppb (2) N/A N/A 13.0
 
Jan. 19, 2019, 2 p.m. 19.4 ppb (18) 6.4 ppb (6) N/A 13.0 ppb (12) N/A N/A N/A 0.25 ppb (3) N/A N/A 18.0
 
Jan. 19, 2019, 1 p.m. 7.6 ppb (7) 0.8 ppb (1) N/A 7.0 ppb (6) N/A N/A N/A 0.16 ppb (2) N/A N/A 7.0
 
Jan. 19, 2019, noon 14.6 ppb (14) 3.3 ppb (3) N/A 11.0 ppb (10) N/A N/A N/A 0.19 ppb (2) N/A N/A 14.0
 
Jan. 19, 2019, 11 a.m. 7.7 ppb (7) 0.8 ppb (1) N/A 7.0 ppb (6) N/A N/A N/A 0.16 ppb (2) N/A N/A 7.0
 
Jan. 19, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Jan. 19, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A