AQSQID: 261630095

Site Name: Livonia Near Road

Location: Livonia, MI

Reporting: True, Located: True

Current AQI: 10.0

Livonia MI, US: 42.421494, -83.425168

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 25, 2019, 2 a.m. 10.5 ppb (10) 0.8 ppb (1) N/A 10.0 ppb (9) N/A N/A N/A 0.4 ppb (4) N/A N/A 10.0
 
March 25, 2019, 1 a.m. 8.3 ppb (8) -0.1 ppb (0) N/A 8.0 ppb (7) N/A N/A N/A 0.4 ppb (4) N/A N/A 8.0
 
March 25, 2019, midnight 5.2 ppb (5) -0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.4 ppb (4) N/A N/A 5.0
 
March 24, 2019, 11 p.m. 4.4 ppb (4) -0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.3 ppb (3) N/A N/A 5.0
 
March 24, 2019, 10 p.m. 3.1 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (3) N/A N/A 3.0
 
March 24, 2019, 9 p.m. 3.6 ppb (3) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.3 ppb (3) N/A N/A 4.0
 
March 24, 2019, 8 p.m. 3.8 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.3 ppb (3) N/A N/A 4.0
 
March 24, 2019, 7 p.m. 3.5 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (3) N/A N/A 3.0
 
March 24, 2019, 6 p.m. 3.1 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (3) N/A N/A 3.0
 
March 24, 2019, 5 p.m. 4.0 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.3 ppb (3) N/A N/A 4.0
 
March 24, 2019, 4 p.m. 8.5 ppb (8) 0.9 ppb (1) N/A 8.0 ppb (7) N/A N/A N/A 0.4 ppb (4) N/A N/A 8.0
 
March 24, 2019, 3 p.m. 11.8 ppb (11) 1.3 ppb (1) N/A 11.0 ppb (10) N/A N/A N/A 0.4 ppb (4) N/A N/A 11.0
 
March 24, 2019, 2 p.m. 14.7 ppb (14) 1.8 ppb (2) N/A 13.0 ppb (12) N/A N/A N/A 0.4 ppb (4) N/A N/A 14.0
 
March 24, 2019, 1 p.m. 21.1 ppb (20) 2.4 ppb (2) N/A 19.0 ppb (18) N/A N/A N/A 0.4 ppb (4) N/A N/A 20.0
 
March 24, 2019, noon 28.0 ppb (26) 2.2 ppb (2) N/A 26.0 ppb (24) N/A N/A N/A 0.5 ppb (6) N/A N/A 26.0
 
March 24, 2019, 11 a.m. 21.9 ppb (20) 0.4 ppb (0) N/A 22.0 ppb (20) N/A N/A N/A 0.4 ppb (4) N/A N/A 20.0
 
March 24, 2019, 10 a.m. 9.1 ppb (8) 0.0 ppb (0) N/A 9.0 ppb (8) N/A N/A N/A 0.4 ppb (4) N/A N/A 8.0
 
March 24, 2019, 9 a.m. 5.3 ppb (5) -0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.4 ppb (4) N/A N/A 5.0
 
March 24, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (3) N/A N/A 3.0
 
March 24, 2019, 7 a.m. 5.2 ppb (5) -0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.3 ppb (3) N/A N/A 5.0
 
March 24, 2019, 6 a.m. 5.9 ppb (5) -0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A N/A 6.0
 
March 24, 2019, 5 a.m. 14.8 ppb (14) 0.0 ppb (0) N/A 15.0 ppb (14) N/A N/A N/A 0.4 ppb (4) N/A N/A 14.0
 
March 24, 2019, 4 a.m. 14.4 ppb (13) -0.1 ppb (0) N/A 15.0 ppb (14) N/A N/A N/A 0.4 ppb (4) N/A N/A 14.0
 
March 24, 2019, 3 a.m. 15.4 ppb (14) 0.0 ppb (0) N/A 15.0 ppb (14) N/A N/A N/A 0.4 ppb (4) N/A N/A 14.0
 
March 24, 2019, 2 a.m. 9.9 ppb (9) 0.0 ppb (0) N/A 10.0 ppb (9) N/A N/A N/A 0.4 ppb (4) N/A N/A 9.0
 
March 24, 2019, 1 a.m. 4.6 ppb (4) -0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.4 ppb (4) N/A N/A 5.0
 
March 24, 2019, midnight 2.8 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (3) N/A N/A 3.0
 
March 23, 2019, 11 p.m. 1.6 ppb (1) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (3) N/A N/A 3.0
 
March 23, 2019, 10 p.m. 1.5 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.2 ppb (2) N/A N/A 2.0
 
March 23, 2019, 9 p.m. 1.8 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.2 ppb (2) N/A N/A 2.0
 
March 23, 2019, 8 p.m. 1.7 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.2 ppb (2) N/A N/A 2.0
 
March 23, 2019, 7 p.m. 1.6 ppb (1) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.2 ppb (2) N/A N/A 2.0
 
March 23, 2019, 6 p.m. 1.9 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.2 ppb (2) N/A N/A 2.0
 
March 23, 2019, 5 p.m. 1.9 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.2 ppb (2) N/A N/A 2.0
 
March 23, 2019, 4 p.m. 2.2 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (3) N/A N/A 3.0
 
March 23, 2019, 3 p.m. 2.5 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (3) N/A N/A 3.0
 
March 23, 2019, 2 p.m. 3.0 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (3) N/A N/A 3.0
 
March 23, 2019, 1 p.m. 3.7 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (3) N/A N/A 3.0
 
March 23, 2019, noon 5.3 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.3 ppb (3) N/A N/A 5.0
 
March 23, 2019, 11 a.m. 4.7 ppb (4) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.2 ppb (2) N/A N/A 5.0
 
March 23, 2019, 10 a.m. 4.1 ppb (4) -0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.2 ppb (2) N/A N/A 4.0
 
March 23, 2019, 9 a.m. 3.3 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.2 ppb (2) N/A N/A 3.0
 
March 23, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (2) N/A N/A 2.0
 
March 23, 2019, 7 a.m. 2.7 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.2 ppb (2) N/A N/A 3.0
 
March 23, 2019, 6 a.m. 2.4 ppb (2) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A N/A 3.0
 
March 23, 2019, 5 a.m. 2.2 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.2 ppb (2) N/A N/A 2.0
 
March 23, 2019, 4 a.m. 2.1 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.2 ppb (2) N/A N/A 2.0
 
March 23, 2019, 3 a.m. 2.0 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.2 ppb (2) N/A N/A 2.0
 
March 23, 2019, 2 a.m. 2.4 ppb (2) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (3) N/A N/A 3.0
 
March 23, 2019, 1 a.m. 2.7 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (3) N/A N/A 3.0
 
March 23, 2019, midnight 2.2 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (3) N/A N/A 3.0
 
March 22, 2019, 11 p.m. 1.8 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (3) N/A N/A 3.0
 
March 22, 2019, 10 p.m. 1.6 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (3) N/A N/A 3.0
 
March 22, 2019, 9 p.m. 1.7 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (3) N/A N/A 3.0
 
March 22, 2019, 8 p.m. 2.0 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (3) N/A N/A 3.0
 
March 22, 2019, 7 p.m. 2.0 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (3) N/A N/A 3.0
 
March 22, 2019, 6 p.m. 1.7 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (3) N/A N/A 3.0
 
March 22, 2019, 5 p.m. 2.6 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (3) N/A N/A 3.0
 
March 22, 2019, 4 p.m. 4.6 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.3 ppb (3) N/A N/A 4.0
 
March 22, 2019, 3 p.m. 7.2 ppb (7) 1.7 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A 0.3 ppb (3) N/A N/A 7.0
 
March 22, 2019, 2 p.m. 5.7 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.3 ppb (3) N/A N/A 5.0
 
March 22, 2019, 1 p.m. 5.7 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.3 ppb (3) N/A N/A 5.0
 
March 22, 2019, noon 5.4 ppb (5) 0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.3 ppb (3) N/A N/A 5.0
 
March 22, 2019, 11 a.m. 7.3 ppb (7) 0.1 ppb (0) N/A 7.0 ppb (6) N/A N/A N/A 0.3 ppb (3) N/A N/A 7.0
 
March 22, 2019, 10 a.m. 5.9 ppb (5) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A 0.3 ppb (3) N/A N/A 6.0
 
March 22, 2019, 9 a.m. 5.5 ppb (5) -0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A 0.3 ppb (3) N/A N/A 6.0
 
March 22, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (3) N/A N/A 3.0
 
March 22, 2019, 7 a.m. 4.7 ppb (4) -0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.3 ppb (3) N/A N/A 5.0
 
March 22, 2019, 6 a.m. 4.1 ppb (4) -0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A N/A N/A N/A 4.0
 
March 22, 2019, 5 a.m. 2.9 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (3) N/A N/A 3.0
 
March 22, 2019, 4 a.m. 3.5 ppb (3) -0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.3 ppb (3) N/A N/A 4.0
 
March 22, 2019, 3 a.m. 2.7 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (3) N/A N/A 3.0
 
March 22, 2019, 2 a.m. 4.1 ppb (4) -0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.4 ppb (4) N/A N/A 4.0
 
March 22, 2019, 1 a.m. 5.3 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.4 ppb (4) N/A N/A 5.0
 
March 22, 2019, midnight 7.0 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A N/A N/A 0.4 ppb (4) N/A N/A 6.0
 
March 21, 2019, 11 p.m. 5.3 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.4 ppb (4) N/A N/A 5.0
 
March 21, 2019, 10 p.m. 4.8 ppb (4) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.4 ppb (4) N/A N/A 5.0
 
March 21, 2019, 9 p.m. 5.4 ppb (5) 0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.4 ppb (4) N/A N/A 5.0
 
March 21, 2019, 8 p.m. 5.1 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.4 ppb (4) N/A N/A 5.0
 
March 21, 2019, 7 p.m. 5.4 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.4 ppb (4) N/A N/A 5.0
 
March 21, 2019, 6 p.m. 7.3 ppb (7) 0.7 ppb (1) N/A 7.0 ppb (6) N/A N/A N/A 0.4 ppb (4) N/A N/A 7.0
 
March 21, 2019, 5 p.m. 5.7 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.4 ppb (4) N/A N/A 5.0
 
March 21, 2019, 4 p.m. 7.1 ppb (7) 0.7 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A N/A 7.0
 
March 21, 2019, 3 p.m. 6.4 ppb (6) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A N/A 6.0
 
March 21, 2019, 2 p.m. 7.2 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A N/A N/A 0.4 ppb (4) N/A N/A 7.0
 
March 21, 2019, 1 p.m. 11.5 ppb (11) 0.6 ppb (1) N/A 11.0 ppb (10) N/A N/A N/A 0.4 ppb (4) N/A N/A 11.0
 
March 21, 2019, noon 14.4 ppb (13) 0.3 ppb (0) N/A 14.0 ppb (13) N/A N/A N/A 0.5 ppb (6) N/A N/A 13.0
 
March 21, 2019, 11 a.m. 12.2 ppb (11) 0.0 ppb (0) N/A 12.0 ppb (11) N/A N/A N/A 0.4 ppb (4) N/A N/A 11.0
 
March 21, 2019, 10 a.m. 8.0 ppb (7) -0.1 ppb (0) N/A 8.0 ppb (7) N/A N/A N/A 0.4 ppb (4) N/A N/A 7.0
 
March 21, 2019, 9 a.m. 7.5 ppb (7) -0.1 ppb (0) N/A 8.0 ppb (7) N/A N/A N/A 0.4 ppb (4) N/A N/A 7.0
 
March 21, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (4) N/A N/A 4.0
 
March 21, 2019, 7 a.m. 13.9 ppb (13) 0.1 ppb (0) N/A 14.0 ppb (13) N/A N/A N/A 0.4 ppb (4) N/A N/A 13.0
 
March 21, 2019, 6 a.m. 8.6 ppb (8) -0.1 ppb (0) N/A 9.0 ppb (8) N/A N/A N/A N/A N/A N/A 8.0
 
March 21, 2019, 5 a.m. 8.7 ppb (8) 0.0 ppb (0) N/A 9.0 ppb (8) N/A N/A N/A 0.4 ppb (4) N/A N/A 8.0
 
March 21, 2019, 4 a.m. 8.5 ppb (8) 0.1 ppb (0) N/A 9.0 ppb (8) N/A N/A N/A 0.4 ppb (4) N/A N/A 8.0
 
March 21, 2019, 3 a.m. 8.4 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (7) N/A N/A N/A 0.4 ppb (4) N/A N/A 8.0
 
March 21, 2019, 2 a.m. 14.8 ppb (14) 1.1 ppb (1) N/A 14.0 ppb (13) N/A N/A N/A 0.4 ppb (4) N/A N/A 14.0
 
March 21, 2019, 1 a.m. 20.8 ppb (19) 2.0 ppb (2) N/A 19.0 ppb (18) N/A N/A N/A 0.5 ppb (6) N/A N/A 19.0
 
March 21, 2019, midnight 18.7 ppb (17) 0.9 ppb (1) N/A 18.0 ppb (17) N/A N/A N/A 0.5 ppb (6) N/A N/A 17.0
 
March 20, 2019, 11 p.m. 34.6 ppb (32) 5.8 ppb (5) N/A 29.0 ppb (27) N/A N/A N/A 0.6 ppb (7) N/A N/A 32.0
 
March 20, 2019, 10 p.m. 32.7 ppb (30) 5.9 ppb (5) N/A 27.0 ppb (25) N/A N/A N/A 0.6 ppb (7) N/A N/A 30.0
 
March 20, 2019, 9 p.m. 20.6 ppb (19) 3.4 ppb (3) N/A 17.0 ppb (16) N/A N/A N/A 0.4 ppb (4) N/A N/A 19.0
 
March 20, 2019, 8 p.m. 28.8 ppb (27) 7.6 ppb (7) N/A 21.0 ppb (19) N/A N/A N/A 0.5 ppb (6) N/A N/A 27.0
 
March 20, 2019, 7 p.m. 18.3 ppb (17) 4.4 ppb (4) N/A 14.0 ppb (13) N/A N/A N/A 0.4 ppb (4) N/A N/A 17.0
 
March 20, 2019, 6 p.m. 5.3 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.3 ppb (3) N/A N/A 5.0
 
March 20, 2019, 5 p.m. 5.5 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.3 ppb (3) N/A N/A 5.0
 
March 20, 2019, 4 p.m. 5.0 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.3 ppb (3) N/A N/A 5.0
 
March 20, 2019, 3 p.m. 19.9 ppb (18) 4.1 ppb (4) N/A 16.0 ppb (15) N/A N/A N/A 0.3 ppb (3) N/A N/A 18.0
 
March 20, 2019, 2 p.m. 16.7 ppb (15) 2.6 ppb (2) N/A 14.0 ppb (13) N/A N/A N/A 0.3 ppb (3) N/A N/A 15.0
 
March 20, 2019, 1 p.m. 34.5 ppb (32) 7.9 ppb (7) N/A 27.0 ppb (25) N/A N/A N/A 0.5 ppb (6) N/A N/A 32.0
 
March 20, 2019, noon 32.6 ppb (30) 3.7 ppb (3) N/A 29.0 ppb (27) N/A N/A N/A 0.5 ppb (6) N/A N/A 30.0
 
March 20, 2019, 11 a.m. 27.9 ppb (26) 0.6 ppb (1) N/A 27.0 ppb (25) N/A N/A N/A 0.4 ppb (4) N/A N/A 26.0
 
March 20, 2019, 10 a.m. 24.8 ppb (23) 0.2 ppb (0) N/A 25.0 ppb (23) N/A N/A N/A 0.4 ppb (4) N/A N/A 23.0
 
March 20, 2019, 9 a.m. 19.2 ppb (18) 0.0 ppb (0) N/A 19.0 ppb (18) N/A N/A N/A 0.3 ppb (3) N/A N/A 18.0
 
March 20, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (3) N/A N/A 3.0
 
March 20, 2019, 7 a.m. 19.1 ppb (18) 0.0 ppb (0) N/A 19.0 ppb (18) N/A N/A N/A 0.3 ppb (3) N/A N/A 18.0
 
March 20, 2019, 6 a.m. 13.1 ppb (12) 0.0 ppb (0) N/A 13.0 ppb (12) N/A N/A N/A N/A N/A N/A 12.0
 
March 20, 2019, 5 a.m. 11.0 ppb (10) -0.1 ppb (0) N/A 11.0 ppb (10) N/A N/A N/A 0.4 ppb (4) N/A N/A 10.0
 
March 20, 2019, 4 a.m. 11.4 ppb (11) -0.1 ppb (0) N/A 12.0 ppb (11) N/A N/A N/A 0.3 ppb (3) N/A N/A 11.0
 
March 20, 2019, 3 a.m. 10.3 ppb (10) -0.1 ppb (0) N/A 10.0 ppb (9) N/A N/A N/A 0.3 ppb (3) N/A N/A 10.0
 
March 20, 2019, 2 a.m. 10.4 ppb (10) -0.1 ppb (0) N/A 11.0 ppb (10) N/A N/A N/A 0.3 ppb (3) N/A N/A 10.0
 
March 20, 2019, 1 a.m. 8.9 ppb (8) -0.1 ppb (0) N/A 9.0 ppb (8) N/A N/A N/A 0.3 ppb (3) N/A N/A 8.0
 
March 20, 2019, midnight 7.7 ppb (7) -0.1 ppb (0) N/A 8.0 ppb (7) N/A N/A N/A 0.3 ppb (3) N/A N/A 7.0
 
March 19, 2019, 11 p.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.3 ppb (3) N/A N/A 5.0
 
March 19, 2019, 10 p.m. 3.9 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.3 ppb (3) N/A N/A 4.0
 
March 19, 2019, 9 p.m. 3.6 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (3) N/A N/A 3.0
 
March 19, 2019, 8 p.m. 3.7 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (3) N/A N/A 3.0
 
March 19, 2019, 7 p.m. 2.8 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.2 ppb (2) N/A N/A 3.0
 
March 19, 2019, 6 p.m. 2.6 ppb (2) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.2 ppb (2) N/A N/A 3.0
 
March 19, 2019, 5 p.m. 3.3 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (3) N/A N/A 3.0
 
March 19, 2019, 4 p.m. 4.0 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.3 ppb (3) N/A N/A 4.0
 
March 19, 2019, 3 p.m. 4.1 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.3 ppb (3) N/A N/A 4.0
 
March 19, 2019, 2 p.m. 6.8 ppb (6) 0.7 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.3 ppb (3) N/A N/A 6.0
 
March 19, 2019, 1 p.m. 18.0 ppb (17) 2.6 ppb (2) N/A 15.0 ppb (14) N/A N/A N/A 0.3 ppb (3) N/A N/A 17.0
 
March 19, 2019, noon 21.5 ppb (20) 2.4 ppb (2) N/A 19.0 ppb (18) N/A N/A N/A 0.3 ppb (3) N/A N/A 20.0
 
March 19, 2019, 11 a.m. 16.0 ppb (15) 0.2 ppb (0) N/A 16.0 ppb (15) N/A N/A N/A 0.4 ppb (4) N/A N/A 15.0
 
March 19, 2019, 10 a.m. 14.7 ppb (14) 0.0 ppb (0) N/A 15.0 ppb (14) N/A N/A N/A 0.3 ppb (3) N/A N/A 14.0
 
March 19, 2019, 9 a.m. 8.8 ppb (8) 0.0 ppb (0) N/A 9.0 ppb (8) N/A N/A N/A 0.3 ppb (3) N/A N/A 8.0
 
March 19, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (3) N/A N/A 3.0
 
March 19, 2019, 7 a.m. 7.5 ppb (7) -0.1 ppb (0) N/A 8.0 ppb (7) N/A N/A N/A 0.3 ppb (3) N/A N/A 7.0
 
March 19, 2019, 6 a.m. 7.5 ppb (7) -0.1 ppb (0) N/A 8.0 ppb (7) N/A N/A N/A N/A N/A N/A 7.0
 
March 19, 2019, 5 a.m. 8.1 ppb (8) -0.1 ppb (0) N/A 8.0 ppb (7) N/A N/A N/A 0.2 ppb (2) N/A N/A 8.0
 
March 19, 2019, 4 a.m. 8.7 ppb (8) -0.1 ppb (0) N/A 9.0 ppb (8) N/A N/A N/A 0.3 ppb (3) N/A N/A 8.0
 
March 19, 2019, 3 a.m. 11.9 ppb (11) -0.1 ppb (0) N/A 12.0 ppb (11) N/A N/A N/A 0.3 ppb (3) N/A N/A 11.0
 
March 19, 2019, 2 a.m. 18.0 ppb (17) 0.0 ppb (0) N/A 18.0 ppb (17) N/A N/A N/A 0.3 ppb (3) N/A N/A 17.0
 
March 19, 2019, 1 a.m. 15.7 ppb (15) 0.1 ppb (0) N/A 16.0 ppb (15) N/A N/A N/A 0.4 ppb (4) N/A N/A 15.0
 
March 19, 2019, midnight 8.1 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (7) N/A N/A N/A 0.3 ppb (3) N/A N/A 8.0
 
March 18, 2019, 11 p.m. 4.6 ppb (4) 0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.2 ppb (2) N/A N/A 5.0
 
March 18, 2019, 10 p.m. 3.3 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.2 ppb (2) N/A N/A 3.0
 
March 18, 2019, 9 p.m. 3.5 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.2 ppb (2) N/A N/A 3.0
 
March 18, 2019, 8 p.m. 2.9 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.2 ppb (2) N/A N/A 3.0
 
March 18, 2019, 7 p.m. 2.3 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.2 ppb (2) N/A N/A 2.0
 
March 18, 2019, 6 p.m. 3.7 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.2 ppb (2) N/A N/A 3.0
 
March 18, 2019, 5 p.m. 3.4 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.2 ppb (2) N/A N/A 3.0
 
March 18, 2019, 4 p.m. 4.1 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.2 ppb (2) N/A N/A 4.0
 
March 18, 2019, 3 p.m. 6.7 ppb (6) 1.6 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.3 ppb (3) N/A N/A 6.0
 
March 18, 2019, 2 p.m. 7.9 ppb (7) 1.4 ppb (1) N/A 7.0 ppb (6) N/A N/A N/A 0.3 ppb (3) N/A N/A 7.0
 
March 18, 2019, 1 p.m. 10.6 ppb (10) 1.8 ppb (2) N/A 9.0 ppb (8) N/A N/A N/A 0.3 ppb (3) N/A N/A 10.0
 
March 18, 2019, noon 11.8 ppb (11) 1.0 ppb (1) N/A 11.0 ppb (10) N/A N/A N/A 0.3 ppb (3) N/A N/A 11.0
 
March 18, 2019, 11 a.m. 11.2 ppb (10) 0.2 ppb (0) N/A 11.0 ppb (10) N/A N/A N/A 0.3 ppb (3) N/A N/A 10.0
 
March 18, 2019, 10 a.m. 10.8 ppb (10) 0.1 ppb (0) N/A 11.0 ppb (10) N/A N/A N/A 0.3 ppb (3) N/A N/A 10.0
 
March 18, 2019, 9 a.m. 9.6 ppb (9) 0.0 ppb (0) N/A 10.0 ppb (9) N/A N/A N/A 0.3 ppb (3) N/A N/A 9.0
 
March 18, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (3) N/A N/A 3.0
 
March 18, 2019, 7 a.m. 36.9 ppb (34) 10.8 ppb (10) N/A 26.0 ppb (24) N/A N/A N/A 0.4 ppb (4) N/A N/A 34.0
 
March 18, 2019, 6 a.m. 7.8 ppb (7) 0.0 ppb (0) N/A 8.0 ppb (7) N/A N/A N/A N/A N/A N/A 7.0
 
March 18, 2019, 5 a.m. 13.3 ppb (12) 0.0 ppb (0) N/A 13.0 ppb (12) N/A N/A N/A 0.3 ppb (3) N/A N/A 12.0
 
March 18, 2019, 4 a.m. 13.7 ppb (13) 0.0 ppb (0) N/A 14.0 ppb (13) N/A N/A N/A 0.3 ppb (3) N/A N/A 13.0
 
March 18, 2019, 3 a.m. 12.6 ppb (12) 0.0 ppb (0) N/A 13.0 ppb (12) N/A N/A N/A 0.3 ppb (3) N/A N/A 12.0