AQSQID: 490050007

Site Name: Smithfield

Location: Smithfield (W 220 N), UT

Reporting: True, Located: True

Current AQI: 17.0

Smithfield (W 220 N) UT, US: 41.842778, -111.85194

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 27, 2020, 4 a.m. 4.6 ppb (4) 0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 22.0 ppb (17) N/A N/A N/A 17.0
 
Jan. 27, 2020, 3 a.m. 7.0 ppb (6) 0.4 ppb (0) N/A 7.0 ppb (6) N/A N/A 18.0 ppb (14) N/A N/A N/A 14.0
 
Jan. 27, 2020, 2 a.m. 2.7 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 21.0 ppb (16) N/A N/A N/A 16.0
 
Jan. 27, 2020, 1 a.m. 6.8 ppb (6) 0.4 ppb (0) N/A 7.0 ppb (6) N/A N/A 18.0 ppb (14) N/A N/A N/A 14.0
 
Jan. 27, 2020, midnight 3.1 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 22.0 ppb (17) N/A N/A N/A 17.0
 
Jan. 26, 2020, 11 p.m. 0.8 ppb (1) 0.8 ppb (1) N/A 0.0 ppb (0) N/A N/A 27.0 ppb (21) N/A N/A N/A 21.0
 
Jan. 26, 2020, 10 p.m. 3.7 ppb (3) 2.5 ppb (2) N/A 1.0 ppb (1) N/A N/A 26.0 ppb (20) N/A N/A N/A 20.0
 
Jan. 26, 2020, 9 p.m. 2.3 ppb (2) 2.6 ppb (2) N/A 0.0 ppb (0) N/A N/A 27.0 ppb (21) N/A N/A N/A 21.0
 
Jan. 26, 2020, 8 p.m. 2.6 ppb (2) 2.6 ppb (2) N/A 0.0 ppb (0) N/A N/A 28.0 ppb (22) N/A N/A N/A 22.0
 
Jan. 26, 2020, 7 p.m. 6.0 ppb (6) 5.8 ppb (5) N/A 0.0 ppb (0) N/A N/A 23.0 ppb (18) N/A N/A N/A 18.0
 
Jan. 26, 2020, 6 p.m. 8.7 ppb (8) 7.4 ppb (7) N/A 2.0 ppb (2) N/A N/A 17.0 ppb (13) N/A N/A N/A 13.0
 
Jan. 26, 2020, 5 p.m. 9.7 ppb (9) 7.9 ppb (7) N/A 2.0 ppb (2) N/A N/A 16.0 ppb (12) N/A N/A N/A 12.0
 
Jan. 26, 2020, 4 p.m. 14.0 ppb (13) 8.0 ppb (7) N/A 6.0 ppb (6) N/A N/A 14.0 ppb (11) N/A N/A N/A 13.0
 
Jan. 26, 2020, 3 p.m. 14.6 ppb (14) 5.0 ppb (5) N/A 10.0 ppb (9) N/A N/A 11.0 ppb (8) N/A N/A N/A 14.0
 
Jan. 26, 2020, 2 p.m. 5.8 ppb (5) 0.9 ppb (1) N/A 5.0 ppb (5) N/A N/A 12.0 ppb (9) N/A N/A N/A 9.0
 
Jan. 26, 2020, 1 p.m. 2.4 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 16.0 ppb (12) N/A N/A N/A 12.0
 
Jan. 26, 2020, noon 0.8 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 20.0 ppb (15) N/A N/A N/A 15.0
 
Jan. 26, 2020, 11 a.m. 3.3 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A N/A 3.0
 
Jan. 26, 2020, 10 a.m. 8.9 ppb (8) 0.2 ppb (0) N/A 9.0 ppb (8) N/A N/A 12.0 ppb (9) N/A N/A N/A 9.0
 
Jan. 26, 2020, 9 a.m. 7.4 ppb (7) 0.2 ppb (0) N/A 7.0 ppb (6) N/A N/A 12.0 ppb (9) N/A N/A N/A 9.0
 
Jan. 26, 2020, 8 a.m. 12.1 ppb (11) 0.3 ppb (0) N/A 12.0 ppb (11) N/A N/A 12.0 ppb (9) N/A N/A N/A 11.0
 
Jan. 26, 2020, 7 a.m. 7.8 ppb (7) 0.4 ppb (0) N/A 8.0 ppb (7) N/A N/A 17.0 ppb (13) N/A N/A N/A 13.0
 
Jan. 26, 2020, 6 a.m. 7.3 ppb (7) 0.2 ppb (0) N/A 7.0 ppb (6) N/A N/A 17.0 ppb (13) N/A N/A N/A 13.0
 
Jan. 26, 2020, 5 a.m. 4.5 ppb (4) 0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 23.0 ppb (18) N/A N/A N/A 18.0
 
Jan. 26, 2020, 4 a.m. -1.3 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 28.0 ppb (22) N/A N/A N/A 22.0
 
Jan. 26, 2020, 3 a.m. -1.3 ppb (0) 0.0 ppb (0) N/A N/A N/A N/A 30.0 ppb (23) N/A N/A N/A 23.0
 
Jan. 26, 2020, 2 a.m. -0.8 ppb (0) 0.0 ppb (0) N/A -1.0 ppb (0) N/A N/A 31.0 ppb (24) N/A N/A N/A 24.0
 
Jan. 26, 2020, 1 a.m. 2.8 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 28.0 ppb (22) N/A N/A N/A 22.0
 
Jan. 26, 2020, midnight 1.6 ppb (1) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 29.0 ppb (22) N/A N/A N/A 22.0
 
Jan. 25, 2020, 11 p.m. -0.4 ppb (0) 0.4 ppb (0) N/A -1.0 ppb (0) N/A N/A 32.0 ppb (25) N/A N/A N/A 25.0
 
Jan. 25, 2020, 10 p.m. 0.7 ppb (1) 0.7 ppb (1) N/A 0.0 ppb (0) N/A N/A 34.0 ppb (26) N/A N/A N/A 26.0
 
Jan. 25, 2020, 9 p.m. 1.6 ppb (1) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 33.0 ppb (25) N/A N/A N/A 25.0
 
Jan. 25, 2020, 8 p.m. 5.4 ppb (5) 3.6 ppb (3) N/A 2.0 ppb (2) N/A N/A 29.0 ppb (22) N/A N/A N/A 22.0
 
Jan. 25, 2020, 7 p.m. 1.8 ppb (2) 1.6 ppb (1) N/A 0.0 ppb (0) N/A N/A 31.0 ppb (24) N/A N/A N/A 24.0
 
Jan. 25, 2020, 6 p.m. 0.6 ppb (1) 1.2 ppb (1) N/A -1.0 ppb (0) N/A N/A 30.0 ppb (23) N/A N/A N/A 23.0
 
Jan. 25, 2020, 5 p.m. 9.9 ppb (9) 6.9 ppb (6) N/A 3.0 ppb (3) N/A N/A 22.0 ppb (17) N/A N/A N/A 17.0
 
Jan. 25, 2020, 4 p.m. 26.6 ppb (25) 17.3 ppb (16) N/A 10.0 ppb (9) N/A N/A 10.0 ppb (8) N/A N/A N/A 25.0
 
Jan. 25, 2020, 3 p.m. 17.0 ppb (16) 6.4 ppb (6) N/A 11.0 ppb (10) N/A N/A 9.0 ppb (7) N/A N/A N/A 16.0
 
Jan. 25, 2020, 2 p.m. 13.9 ppb (13) 1.6 ppb (1) N/A 13.0 ppb (12) N/A N/A 9.0 ppb (7) N/A N/A N/A 13.0
 
Jan. 25, 2020, 1 p.m. 5.9 ppb (5) 0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 11.0 ppb (8) N/A N/A N/A 8.0
 
Jan. 25, 2020, noon 4.7 ppb (4) 0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 13.0 ppb (10) N/A N/A N/A 10.0
 
Jan. 25, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A N/A N/A 9.0
 
Jan. 25, 2020, 10 a.m. 6.9 ppb (6) 0.1 ppb (0) N/A 7.0 ppb (6) N/A N/A 14.0 ppb (11) N/A N/A N/A 11.0
 
Jan. 25, 2020, 9 a.m. 10.8 ppb (10) 0.2 ppb (0) N/A 11.0 ppb (10) N/A N/A 13.0 ppb (10) N/A N/A N/A 10.0
 
Jan. 25, 2020, 8 a.m. 13.4 ppb (12) 0.7 ppb (1) N/A 13.0 ppb (12) N/A N/A 15.0 ppb (12) N/A N/A N/A 12.0
 
Jan. 25, 2020, 7 a.m. 19.3 ppb (18) 0.5 ppb (0) N/A 19.0 ppb (18) N/A N/A 9.0 ppb (7) N/A N/A N/A 18.0
 
Jan. 25, 2020, 6 a.m. 18.6 ppb (17) 0.3 ppb (0) N/A 19.0 ppb (18) N/A N/A 8.0 ppb (6) N/A N/A N/A 18.0
 
Jan. 25, 2020, 5 a.m. 10.8 ppb (10) 0.2 ppb (0) N/A 11.0 ppb (10) N/A N/A 18.0 ppb (14) N/A N/A N/A 14.0
 
Jan. 25, 2020, 4 a.m. 8.8 ppb (8) 0.1 ppb (0) N/A 9.0 ppb (8) N/A N/A 22.0 ppb (17) N/A N/A N/A 17.0
 
Jan. 25, 2020, 3 a.m. 16.5 ppb (15) 0.2 ppb (0) N/A 17.0 ppb (16) N/A N/A 13.0 ppb (10) N/A N/A N/A 16.0
 
Jan. 25, 2020, 2 a.m. 14.3 ppb (13) 0.5 ppb (0) N/A 14.0 ppb (13) N/A N/A 16.0 ppb (12) N/A N/A N/A 13.0
 
Jan. 25, 2020, 1 a.m. 11.0 ppb (10) 0.1 ppb (0) N/A 11.0 ppb (10) N/A N/A 20.0 ppb (15) N/A N/A N/A 15.0
 
Jan. 25, 2020, midnight 11.4 ppb (11) 0.6 ppb (1) N/A 11.0 ppb (10) N/A N/A 21.0 ppb (16) N/A N/A N/A 16.0
 
Jan. 24, 2020, 11 p.m. 10.3 ppb (10) 2.0 ppb (2) N/A 9.0 ppb (8) N/A N/A 24.0 ppb (18) N/A N/A N/A 18.0
 
Jan. 24, 2020, 10 p.m. 9.0 ppb (8) 2.9 ppb (3) N/A 6.0 ppb (6) N/A N/A 27.0 ppb (21) N/A N/A N/A 21.0
 
Jan. 24, 2020, 9 p.m. 4.9 ppb (5) 2.5 ppb (2) N/A 3.0 ppb (3) N/A N/A 29.0 ppb (22) N/A N/A N/A 22.0
 
Jan. 24, 2020, 8 p.m. 8.1 ppb (8) 5.3 ppb (5) N/A 3.0 ppb (3) N/A N/A 28.0 ppb (22) N/A N/A N/A 22.0
 
Jan. 24, 2020, 7 p.m. 21.7 ppb (20) 13.7 ppb (13) N/A 8.0 ppb (7) N/A N/A 22.0 ppb (17) N/A N/A N/A 20.0
 
Jan. 24, 2020, 6 p.m. 30.1 ppb (28) 20.0 ppb (19) N/A 10.0 ppb (9) N/A N/A 16.0 ppb (12) N/A N/A N/A 28.0
 
Jan. 24, 2020, 5 p.m. 31.2 ppb (29) 20.0 ppb (19) N/A 12.0 ppb (11) N/A N/A 12.0 ppb (9) N/A N/A N/A 29.0
 
Jan. 24, 2020, 4 p.m. 18.0 ppb (17) 9.0 ppb (8) N/A 9.0 ppb (8) N/A N/A 15.0 ppb (12) N/A N/A N/A 17.0
 
Jan. 24, 2020, 3 p.m. 6.9 ppb (6) 2.4 ppb (2) N/A 5.0 ppb (5) N/A N/A 18.0 ppb (14) N/A N/A N/A 14.0
 
Jan. 24, 2020, 2 p.m. 16.8 ppb (16) 2.0 ppb (2) N/A 15.0 ppb (14) N/A N/A 7.0 ppb (5) N/A N/A N/A 16.0
 
Jan. 24, 2020, 1 p.m. 14.1 ppb (13) 1.0 ppb (1) N/A 13.0 ppb (12) N/A N/A 7.0 ppb (5) N/A N/A N/A 13.0
 
Jan. 24, 2020, noon 13.5 ppb (12) 1.0 ppb (1) N/A 13.0 ppb (12) N/A N/A 9.0 ppb (7) N/A N/A N/A 12.0
 
Jan. 24, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A N/A N/A 7.0
 
Jan. 24, 2020, 10 a.m. 19.8 ppb (18) 0.7 ppb (1) N/A 19.0 ppb (18) N/A N/A 6.0 ppb (5) N/A N/A N/A 18.0
 
Jan. 24, 2020, 9 a.m. 9.6 ppb (9) 0.3 ppb (0) N/A 10.0 ppb (9) N/A N/A 15.0 ppb (12) N/A N/A N/A 12.0
 
Jan. 24, 2020, 8 a.m. 2.4 ppb (2) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 24.0 ppb (18) N/A N/A N/A 18.0
 
Jan. 24, 2020, 7 a.m. 1.3 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 25.0 ppb (19) N/A N/A N/A 19.0
 
Jan. 24, 2020, 6 a.m. 4.2 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 28.0 ppb (22) N/A N/A N/A 22.0
 
Jan. 24, 2020, 5 a.m. 6.4 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A N/A 26.0 ppb (20) N/A N/A N/A 20.0
 
Jan. 24, 2020, 4 a.m. 7.6 ppb (7) 0.1 ppb (0) N/A 8.0 ppb (7) N/A N/A 25.0 ppb (19) N/A N/A N/A 19.0
 
Jan. 24, 2020, 3 a.m. 19.5 ppb (18) 0.1 ppb (0) N/A 20.0 ppb (19) N/A N/A 16.0 ppb (12) N/A N/A N/A 19.0
 
Jan. 24, 2020, 2 a.m. 16.4 ppb (15) 0.4 ppb (0) N/A 16.0 ppb (15) N/A N/A 21.0 ppb (16) N/A N/A N/A 16.0
 
Jan. 24, 2020, 1 a.m. 10.0 ppb (9) 0.1 ppb (0) N/A 10.0 ppb (9) N/A N/A 26.0 ppb (20) N/A N/A N/A 20.0
 
Jan. 24, 2020, midnight 19.6 ppb (18) 0.7 ppb (1) N/A 19.0 ppb (18) N/A N/A 23.0 ppb (18) N/A N/A N/A 18.0
 
Jan. 23, 2020, 11 p.m. 13.2 ppb (12) 1.9 ppb (2) N/A 12.0 ppb (11) N/A N/A 32.0 ppb (25) N/A N/A N/A 25.0
 
Jan. 23, 2020, 10 p.m. 7.7 ppb (7) 2.4 ppb (2) N/A 5.0 ppb (5) N/A N/A 37.0 ppb (28) N/A N/A N/A 28.0
 
Jan. 23, 2020, 9 p.m. 3.4 ppb (3) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 42.0 ppb (32) N/A N/A N/A 32.0
 
Jan. 23, 2020, 8 p.m. 1.7 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (33) N/A N/A N/A 33.0
 
Jan. 23, 2020, 7 p.m. 2.2 ppb (2) 1.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (31) N/A N/A N/A 31.0
 
Jan. 23, 2020, 6 p.m. 2.5 ppb (2) 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (28) N/A N/A N/A 28.0
 
Jan. 23, 2020, 5 p.m. 12.3 ppb (11) 5.0 ppb (5) N/A 8.0 ppb (7) N/A N/A 29.0 ppb (22) N/A N/A N/A 22.0
 
Jan. 23, 2020, 4 p.m. 36.3 ppb (34) 14.0 ppb (13) N/A 23.0 ppb (21) N/A N/A 15.0 ppb (12) N/A N/A N/A 34.0
 
Jan. 23, 2020, 3 p.m. 26.8 ppb (25) 5.8 ppb (5) N/A 21.0 ppb (19) N/A N/A 13.0 ppb (10) N/A N/A N/A 25.0
 
Jan. 23, 2020, 2 p.m. 23.4 ppb (22) 1.7 ppb (2) N/A 22.0 ppb (20) N/A N/A 11.0 ppb (8) N/A N/A N/A 22.0
 
Jan. 23, 2020, 1 p.m. 7.6 ppb (7) 0.2 ppb (0) N/A 8.0 ppb (7) N/A N/A 27.0 ppb (21) N/A N/A N/A 21.0
 
Jan. 23, 2020, noon 3.1 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (28) N/A N/A N/A 28.0
 
Jan. 23, 2020, 11 a.m. 6.9 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A N/A 25.0 ppb (19) N/A N/A N/A 19.0
 
Jan. 23, 2020, 10 a.m. 12.4 ppb (11) 0.4 ppb (0) N/A 12.0 ppb (11) N/A N/A 20.0 ppb (15) N/A N/A N/A 15.0
 
Jan. 23, 2020, 9 a.m. 16.8 ppb (16) 0.2 ppb (0) N/A 17.0 ppb (16) N/A N/A 18.0 ppb (14) N/A N/A N/A 16.0
 
Jan. 23, 2020, 8 a.m. 13.3 ppb (12) 0.2 ppb (0) N/A 13.0 ppb (12) N/A N/A 24.0 ppb (18) N/A N/A N/A 18.0
 
Jan. 23, 2020, 7 a.m. 1.5 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (29) N/A N/A N/A 29.0
 
Jan. 23, 2020, 6 a.m. 4.5 ppb (4) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 31.0 ppb (24) N/A N/A N/A 24.0
 
Jan. 23, 2020, 5 a.m. 5.9 ppb (5) 0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A 34.0 ppb (26) N/A N/A N/A 26.0
 
Jan. 23, 2020, 4 a.m. 12.2 ppb (11) 0.2 ppb (0) N/A 12.0 ppb (11) N/A N/A 29.0 ppb (22) N/A N/A N/A 22.0
 
Jan. 23, 2020, 3 a.m. 16.4 ppb (15) 0.2 ppb (0) N/A 17.0 ppb (16) N/A N/A 24.0 ppb (18) N/A N/A N/A 18.0
 
Jan. 23, 2020, 2 a.m. 5.6 ppb (5) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A 36.0 ppb (28) N/A N/A N/A 28.0
 
Jan. 23, 2020, 1 a.m. 10.6 ppb (10) 0.1 ppb (0) N/A 11.0 ppb (10) N/A N/A 33.0 ppb (25) N/A N/A N/A 25.0
 
Jan. 23, 2020, midnight 3.1 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 41.0 ppb (32) N/A N/A N/A 32.0
 
Jan. 22, 2020, 11 p.m. 2.0 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (33) N/A N/A N/A 33.0
 
Jan. 22, 2020, 10 p.m. 5.5 ppb (5) 1.4 ppb (1) N/A 4.0 ppb (4) N/A N/A 43.0 ppb (33) N/A N/A N/A 33.0
 
Jan. 22, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A N/A 35.0
 
Jan. 22, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A N/A 33.0
 
Jan. 22, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A N/A 29.0
 
Jan. 22, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A N/A 28.0
 
Jan. 22, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A N/A 21.0
 
Jan. 22, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A N/A 22.0
 
Jan. 22, 2020, 3 p.m. 17.4 ppb (16) 2.9 ppb (3) N/A 15.0 ppb (14) N/A N/A 19.0 ppb (15) N/A N/A N/A 16.0
 
Jan. 22, 2020, 2 p.m. 7.9 ppb (7) 0.3 ppb (0) N/A 8.0 ppb (7) N/A N/A 26.0 ppb (20) N/A N/A N/A 20.0
 
Jan. 22, 2020, 1 p.m. 4.9 ppb (5) 0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 23.0 ppb (18) N/A N/A N/A 18.0
 
Jan. 22, 2020, noon 6.6 ppb (6) 0.1 ppb (0) N/A 7.0 ppb (6) N/A N/A 20.0 ppb (15) N/A N/A N/A 15.0
 
Jan. 22, 2020, 11 a.m. 7.1 ppb (7) 0.2 ppb (0) N/A 7.0 ppb (6) N/A N/A 19.0 ppb (15) N/A N/A N/A 15.0
 
Jan. 22, 2020, 10 a.m. 8.2 ppb (8) 0.1 ppb (0) N/A 8.0 ppb (7) N/A N/A 18.0 ppb (14) N/A N/A N/A 14.0
 
Jan. 22, 2020, 9 a.m. 8.3 ppb (8) 0.1 ppb (0) N/A 8.0 ppb (7) N/A N/A 19.0 ppb (15) N/A N/A N/A 15.0
 
Jan. 22, 2020, 8 a.m. 7.5 ppb (7) 0.2 ppb (0) N/A 7.0 ppb (6) N/A N/A 23.0 ppb (18) N/A N/A N/A 18.0
 
Jan. 22, 2020, 7 a.m. 6.1 ppb (6) 0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A 23.0 ppb (18) N/A N/A N/A 18.0
 
Jan. 22, 2020, 6 a.m. 7.5 ppb (7) 0.2 ppb (0) N/A 8.0 ppb (7) N/A N/A 22.0 ppb (17) N/A N/A N/A 17.0
 
Jan. 22, 2020, 5 a.m. 5.7 ppb (5) 0.2 ppb (0) N/A 6.0 ppb (6) N/A N/A 26.0 ppb (20) N/A N/A N/A 20.0
 
Jan. 22, 2020, 4 a.m. 11.9 ppb (11) 0.4 ppb (0) N/A 12.0 ppb (11) N/A N/A 22.0 ppb (17) N/A N/A N/A 17.0
 
Jan. 22, 2020, 3 a.m. 28.3 ppb (26) 3.5 ppb (3) N/A 25.0 ppb (23) N/A N/A 12.0 ppb (9) N/A N/A N/A 26.0
 
Jan. 22, 2020, 2 a.m. 16.2 ppb (15) 0.4 ppb (0) N/A 16.0 ppb (15) N/A N/A 19.0 ppb (15) N/A N/A N/A 15.0
 
Jan. 22, 2020, 1 a.m. 11.2 ppb (10) 0.1 ppb (0) N/A 11.0 ppb (10) N/A N/A 27.0 ppb (21) N/A N/A N/A 21.0
 
Jan. 22, 2020, midnight 9.6 ppb (9) 0.4 ppb (0) N/A 9.0 ppb (8) N/A N/A 33.0 ppb (25) N/A N/A N/A 25.0
 
Jan. 21, 2020, 11 p.m. 22.1 ppb (20) 6.1 ppb (6) N/A 16.0 ppb (15) N/A N/A 25.0 ppb (19) N/A N/A N/A 20.0
 
Jan. 21, 2020, 10 p.m. 14.5 ppb (13) 5.3 ppb (5) N/A 10.0 ppb (9) N/A N/A 33.0 ppb (25) N/A N/A N/A 25.0
 
Jan. 21, 2020, 9 p.m. 15.7 ppb (15) 7.7 ppb (7) N/A 8.0 ppb (7) N/A N/A 35.0 ppb (27) N/A N/A N/A 27.0
 
Jan. 21, 2020, 8 p.m. 23.5 ppb (22) 14.7 ppb (14) N/A 9.0 ppb (8) N/A N/A 31.0 ppb (24) N/A N/A N/A 24.0
 
Jan. 21, 2020, 7 p.m. 21.5 ppb (20) 13.8 ppb (13) N/A 8.0 ppb (7) N/A N/A 29.0 ppb (22) N/A N/A N/A 22.0
 
Jan. 21, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A N/A 20.0
 
Jan. 21, 2020, 5 p.m. 18.8 ppb (17) 10.6 ppb (10) N/A 8.0 ppb (7) N/A N/A 21.0 ppb (16) N/A N/A N/A 17.0
 
Jan. 21, 2020, 4 p.m. 26.7 ppb (25) 13.7 ppb (13) N/A 13.0 ppb (12) N/A N/A 16.0 ppb (12) N/A N/A N/A 25.0
 
Jan. 21, 2020, 3 p.m. 31.9 ppb (30) 12.5 ppb (12) N/A 20.0 ppb (19) N/A N/A 9.0 ppb (7) N/A N/A N/A 30.0
 
Jan. 21, 2020, 2 p.m. 31.7 ppb (29) 7.7 ppb (7) N/A 24.0 ppb (22) N/A N/A 3.0 ppb (2) N/A N/A N/A 29.0
 
Jan. 21, 2020, 1 p.m. 18.9 ppb (18) 2.0 ppb (2) N/A 17.0 ppb (16) N/A N/A 9.0 ppb (7) N/A N/A N/A 18.0
 
Jan. 21, 2020, noon 17.4 ppb (16) 0.7 ppb (1) N/A 17.0 ppb (16) N/A N/A 11.0 ppb (8) N/A N/A N/A 16.0
 
Jan. 21, 2020, 11 a.m. 18.7 ppb (17) 0.7 ppb (1) N/A 18.0 ppb (17) N/A N/A 11.0 ppb (8) N/A N/A N/A 17.0
 
Jan. 21, 2020, 10 a.m. 18.7 ppb (17) 0.8 ppb (1) N/A 18.0 ppb (17) N/A N/A 11.0 ppb (8) N/A N/A N/A 17.0
 
Jan. 21, 2020, 9 a.m. 16.9 ppb (16) 0.5 ppb (0) N/A 17.0 ppb (16) N/A N/A 13.0 ppb (10) N/A N/A N/A 16.0
 
Jan. 21, 2020, 8 a.m. 23.1 ppb (21) 0.6 ppb (1) N/A 23.0 ppb (21) N/A N/A 10.0 ppb (8) N/A N/A N/A 21.0
 
Jan. 21, 2020, 7 a.m. 14.7 ppb (14) 0.5 ppb (0) N/A 15.0 ppb (14) N/A N/A 18.0 ppb (14) N/A N/A N/A 14.0
 
Jan. 21, 2020, 6 a.m. 16.1 ppb (15) 0.6 ppb (1) N/A 16.0 ppb (15) N/A N/A 17.0 ppb (13) N/A N/A N/A 15.0
 
Jan. 21, 2020, 5 a.m. 29.1 ppb (27) 1.0 ppb (1) N/A 29.0 ppb (27) N/A N/A 8.0 ppb (6) N/A N/A N/A 27.0
 
Jan. 21, 2020, 4 a.m. 23.9 ppb (22) 0.6 ppb (1) N/A 24.0 ppb (22) N/A N/A 13.0 ppb (10) N/A N/A N/A 22.0
 
Jan. 21, 2020, 3 a.m. 25.1 ppb (23) 0.9 ppb (1) N/A 25.0 ppb (23) N/A N/A 13.0 ppb (10) N/A N/A N/A 23.0
 
Jan. 21, 2020, 2 a.m. 19.8 ppb (18) 0.6 ppb (1) N/A 20.0 ppb (19) N/A N/A 17.0 ppb (13) N/A N/A N/A 19.0
 
Jan. 21, 2020, 1 a.m. 19.6 ppb (18) 1.0 ppb (1) N/A 19.0 ppb (18) N/A N/A 20.0 ppb (15) N/A N/A N/A 18.0
 
Jan. 21, 2020, midnight 21.7 ppb (20) 2.2 ppb (2) N/A 20.0 ppb (19) N/A N/A 21.0 ppb (16) N/A N/A N/A 20.0
 
Jan. 20, 2020, 11 p.m. 20.2 ppb (19) 5.1 ppb (5) N/A 16.0 ppb (15) N/A N/A 26.0 ppb (20) N/A N/A N/A 20.0
 
Jan. 20, 2020, 10 p.m. 22.8 ppb (21) 10.2 ppb (9) N/A 13.0 ppb (12) N/A N/A 29.0 ppb (22) N/A N/A N/A 22.0
 
Jan. 20, 2020, 9 p.m. 19.8 ppb (18) 10.3 ppb (10) N/A 10.0 ppb (9) N/A N/A 30.0 ppb (23) N/A N/A N/A 23.0
 
Jan. 20, 2020, 8 p.m. 19.9 ppb (18) 10.8 ppb (10) N/A 9.0 ppb (8) N/A N/A 30.0 ppb (23) N/A N/A N/A 23.0
 
Jan. 20, 2020, 7 p.m. 24.3 ppb (23) 14.5 ppb (13) N/A 10.0 ppb (9) N/A N/A 27.0 ppb (21) N/A N/A N/A 23.0
 
Jan. 20, 2020, 6 p.m. 23.4 ppb (22) 14.8 ppb (14) N/A 9.0 ppb (8) N/A N/A 24.0 ppb (18) N/A N/A N/A 22.0
 
Jan. 20, 2020, 5 p.m. 24.5 ppb (23) 14.9 ppb (14) N/A 10.0 ppb (9) N/A N/A 22.0 ppb (17) N/A N/A N/A 23.0
 
Jan. 20, 2020, 4 p.m. 20.1 ppb (19) 10.7 ppb (10) N/A 10.0 ppb (9) N/A N/A 20.0 ppb (15) N/A N/A N/A 19.0
 
Jan. 20, 2020, 3 p.m. 27.6 ppb (26) 9.0 ppb (8) N/A 19.0 ppb (18) N/A N/A 12.0 ppb (9) N/A N/A N/A 26.0
 
Jan. 20, 2020, 2 p.m. 24.8 ppb (23) 4.4 ppb (4) N/A 21.0 ppb (19) N/A N/A 9.0 ppb (7) N/A N/A N/A 23.0
 
Jan. 20, 2020, 1 p.m. 20.9 ppb (19) 2.0 ppb (2) N/A 19.0 ppb (18) N/A N/A 10.0 ppb (8) N/A N/A N/A 19.0
 
Jan. 20, 2020, noon 23.5 ppb (22) 1.5 ppb (1) N/A 22.0 ppb (20) N/A N/A 8.0 ppb (6) N/A N/A N/A 22.0
 
Jan. 20, 2020, 11 a.m. 12.7 ppb (12) 0.6 ppb (1) N/A 12.0 ppb (11) N/A N/A 17.0 ppb (13) N/A N/A N/A 13.0
 
Jan. 20, 2020, 10 a.m. 9.0 ppb (8) 0.4 ppb (0) N/A 9.0 ppb (8) N/A N/A 24.0 ppb (18) N/A N/A N/A 18.0
 
Jan. 20, 2020, 9 a.m. 23.0 ppb (21) 1.1 ppb (1) N/A 22.0 ppb (20) N/A N/A 11.0 ppb (8) N/A N/A N/A 21.0
 
Jan. 20, 2020, 8 a.m. 21.6 ppb (20) 1.0 ppb (1) N/A 21.0 ppb (19) N/A N/A 14.0 ppb (11) N/A N/A N/A 20.0
 
Jan. 20, 2020, 7 a.m. 20.4 ppb (19) 0.9 ppb (1) N/A 20.0 ppb (19) N/A N/A 14.0 ppb (11) N/A N/A N/A 19.0
 
Jan. 20, 2020, 6 a.m. 9.0 ppb (8) 0.4 ppb (0) N/A 9.0 ppb (8) N/A N/A 26.0 ppb (20) N/A N/A N/A 20.0
 
Jan. 20, 2020, 5 a.m. 21.5 ppb (20) 0.8 ppb (1) N/A 21.0 ppb (19) N/A N/A 15.0 ppb (12) N/A N/A N/A 20.0