AQSQID: 490210005

Site Name: Enoch

Location: Cedar City (3860 N), UT

Reporting: True, Located: True

Current AQI: 30.0

Cedar City (3860 N) UT, US: 37.747445, -113.055524

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Feb. 19, 2020, 4 a.m. 31.2 ppb (29) 10.4 ppb (10) N/A 21.0 ppb (19) N/A N/A 8.0 ppb (6) N/A N/A 13.8 μg/m3 (54) 54.0
 
Feb. 19, 2020, 3 a.m. 26.7 ppb (25) 7.8 ppb (7) N/A 19.0 ppb (18) N/A N/A 14.0 ppb (11) N/A N/A 5.8 μg/m3 (24) 25.0
 
Feb. 19, 2020, 2 a.m. 15.3 ppb (14) 4.0 ppb (4) N/A 11.0 ppb (10) N/A N/A 22.0 ppb (17) N/A N/A 2.9 μg/m3 (12) 17.0
 
Feb. 19, 2020, 1 a.m. 19.1 ppb (18) 8.3 ppb (8) N/A 11.0 ppb (10) N/A N/A 24.0 ppb (18) N/A N/A 4.4 μg/m3 (18) 18.0
 
Feb. 19, 2020, midnight 1.8 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (31) N/A N/A 2.8 μg/m3 (12) 31.0
 
Feb. 18, 2020, 11 p.m. 3.6 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (34) N/A N/A 2.6 μg/m3 (11) 34.0
 
Feb. 18, 2020, 10 p.m. 1.2 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (33) N/A N/A 3.1 μg/m3 (13) 33.0
 
Feb. 18, 2020, 9 p.m. 2.2 ppb (2) 0.9 ppb (1) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (33) N/A N/A 3.1 μg/m3 (13) 33.0
 
Feb. 18, 2020, 8 p.m. 2.2 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) N/A N/A 3.4 μg/m3 (14) 35.0
 
Feb. 18, 2020, 7 p.m. 2.8 ppb (3) 1.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (33) N/A N/A 3.9 μg/m3 (16) 33.0
 
Feb. 18, 2020, 6 p.m. 4.1 ppb (4) 1.9 ppb (2) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (31) N/A N/A 4.3 μg/m3 (18) 31.0
 
Feb. 18, 2020, 5 p.m. 3.7 ppb (3) 1.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (27) N/A N/A 4.1 μg/m3 (17) 27.0
 
Feb. 18, 2020, 4 p.m. 6.9 ppb (6) 2.7 ppb (3) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (22) N/A N/A 4.3 μg/m3 (18) 22.0
 
Feb. 18, 2020, 3 p.m. 9.3 ppb (9) 3.4 ppb (3) N/A 6.0 ppb (6) N/A N/A 25.0 ppb (19) N/A N/A 4.9 μg/m3 (20) 20.0
 
Feb. 18, 2020, 2 p.m. 11.3 ppb (10) 2.6 ppb (2) N/A 9.0 ppb (8) N/A N/A 19.0 ppb (15) N/A N/A 4.5 μg/m3 (19) 19.0
 
Feb. 18, 2020, 1 p.m. 6.8 ppb (6) 2.7 ppb (3) N/A 4.0 ppb (4) N/A N/A 24.0 ppb (18) N/A N/A 4.4 μg/m3 (18) 18.0
 
Feb. 18, 2020, noon 37.0 ppb (34) 25.9 ppb (24) N/A 21.0 ppb (19) N/A N/A 25.0 ppb (19) N/A N/A 3.4 μg/m3 (14) 34.0
 
Feb. 18, 2020, 11 a.m. 2.1 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (23) N/A N/A 3.0 μg/m3 (12) 23.0
 
Feb. 18, 2020, 10 a.m. 1.1 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 31.0 ppb (24) N/A N/A 3.0 μg/m3 (12) 24.0
 
Feb. 18, 2020, 9 a.m. 1.3 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 32.0 ppb (25) N/A N/A 3.6 μg/m3 (15) 25.0
 
Feb. 18, 2020, 8 a.m. 1.0 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 29.0 ppb (22) N/A N/A 2.9 μg/m3 (12) 22.0
 
Feb. 18, 2020, 7 a.m. 1.6 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 34.0 ppb (26) N/A N/A 2.6 μg/m3 (11) 26.0
 
Feb. 18, 2020, 6 a.m. 1.2 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 32.0 ppb (25) N/A N/A 3.2 μg/m3 (13) 25.0
 
Feb. 18, 2020, 5 a.m. 0.9 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 30.0 ppb (23) N/A N/A 2.3 μg/m3 (10) 23.0
 
Feb. 18, 2020, 4 a.m. 0.7 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 32.0 ppb (25) N/A N/A 2.7 μg/m3 (11) 25.0
 
Feb. 18, 2020, 3 a.m. 0.9 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 34.0 ppb (26) N/A N/A 2.5 μg/m3 (10) 26.0
 
Feb. 18, 2020, 2 a.m. 6.3 ppb (6) 2.7 ppb (3) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (26) N/A N/A 3.0 μg/m3 (12) 26.0
 
Feb. 18, 2020, 1 a.m. 6.1 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 36.0 ppb (28) N/A N/A 3.6 μg/m3 (15) 28.0
 
Feb. 18, 2020, midnight 3.0 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (32) N/A N/A 3.3 μg/m3 (14) 32.0
 
Feb. 17, 2020, 11 p.m. 1.7 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) N/A N/A 3.3 μg/m3 (14) 35.0
 
Feb. 17, 2020, 10 p.m. 4.5 ppb (4) 2.1 ppb (2) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (34) N/A N/A 3.5 μg/m3 (15) 34.0
 
Feb. 17, 2020, 9 p.m. 1.6 ppb (1) 0.7 ppb (1) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (33) N/A N/A 3.9 μg/m3 (16) 33.0
 
Feb. 17, 2020, 8 p.m. 1.2 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (32) N/A N/A 3.9 μg/m3 (16) 32.0
 
Feb. 17, 2020, 7 p.m. 1.4 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (29) N/A N/A 3.4 μg/m3 (14) 29.0
 
Feb. 17, 2020, 6 p.m. 3.5 ppb (3) 2.0 ppb (2) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (25) N/A N/A 3.1 μg/m3 (13) 25.0
 
Feb. 17, 2020, 5 p.m. 4.1 ppb (4) 1.8 ppb (2) N/A 2.0 ppb (2) N/A N/A 28.0 ppb (22) N/A N/A 2.7 μg/m3 (11) 22.0
 
Feb. 17, 2020, 4 p.m. 5.6 ppb (5) 3.1 ppb (3) N/A 3.0 ppb (3) N/A N/A 20.0 ppb (15) N/A N/A 3.2 μg/m3 (13) 15.0
 
Feb. 17, 2020, 3 p.m. 11.7 ppb (11) 4.9 ppb (5) N/A 7.0 ppb (6) N/A N/A 15.0 ppb (12) N/A N/A 1.9 μg/m3 (8) 12.0
 
Feb. 17, 2020, 2 p.m. 16.9 ppb (16) 8.5 ppb (8) N/A 9.0 ppb (8) N/A N/A 12.0 ppb (9) N/A N/A 2.7 μg/m3 (11) 16.0
 
Feb. 17, 2020, 1 p.m. 21.8 ppb (20) 8.2 ppb (8) N/A 14.0 ppb (13) N/A N/A 8.0 ppb (6) N/A N/A 3.2 μg/m3 (13) 20.0
 
Feb. 17, 2020, noon 23.1 ppb (21) 8.6 ppb (8) N/A 15.0 ppb (14) N/A N/A 6.0 ppb (5) N/A N/A 3.2 μg/m3 (13) 21.0
 
Feb. 17, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A N/A 3.0 μg/m3 (12) 12.0
 
Feb. 17, 2020, 10 a.m. 5.7 ppb (5) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 17.0 ppb (13) N/A N/A 2.7 μg/m3 (11) 13.0
 
Feb. 17, 2020, 9 a.m. 4.4 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 21.0 ppb (16) N/A N/A 2.4 μg/m3 (10) 16.0
 
Feb. 17, 2020, 8 a.m. 7.0 ppb (6) 0.3 ppb (0) N/A 7.0 ppb (6) N/A N/A 20.0 ppb (15) N/A N/A 2.3 μg/m3 (10) 15.0
 
Feb. 17, 2020, 7 a.m. 4.5 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (20) N/A N/A 2.1 μg/m3 (9) 20.0
 
Feb. 17, 2020, 6 a.m. 5.1 ppb (5) 0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 31.0 ppb (24) N/A N/A 3.4 μg/m3 (14) 24.0
 
Feb. 17, 2020, 5 a.m. 16.2 ppb (15) 1.2 ppb (1) N/A 15.0 ppb (14) N/A N/A 23.0 ppb (18) N/A N/A 5.4 μg/m3 (23) 23.0
 
Feb. 17, 2020, 4 a.m. 19.4 ppb (18) 6.2 ppb (6) N/A 13.0 ppb (12) N/A N/A 26.0 ppb (20) N/A N/A 7.4 μg/m3 (31) 31.0
 
Feb. 17, 2020, 3 a.m. 6.4 ppb (6) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 40.0 ppb (31) N/A N/A 6.6 μg/m3 (28) 31.0
 
Feb. 17, 2020, 2 a.m. 5.0 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 39.0 ppb (30) N/A N/A 3.9 μg/m3 (16) 30.0
 
Feb. 17, 2020, 1 a.m. 5.3 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 40.0 ppb (31) N/A N/A 3.5 μg/m3 (15) 31.0
 
Feb. 17, 2020, midnight 2.3 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (34) N/A N/A 2.9 μg/m3 (12) 34.0
 
Feb. 16, 2020, 11 p.m. 1.5 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) N/A N/A 2.3 μg/m3 (10) 35.0
 
Feb. 16, 2020, 10 p.m. 1.3 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) N/A N/A 2.2 μg/m3 (9) 35.0
 
Feb. 16, 2020, 9 p.m. 1.4 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) N/A N/A 2.2 μg/m3 (9) 35.0
 
Feb. 16, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 2.6 μg/m3 (11) 33.0
 
Feb. 16, 2020, 7 p.m. 3.0 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 43.0 ppb (33) N/A N/A 3.4 μg/m3 (14) 33.0
 
Feb. 16, 2020, 6 p.m. 3.0 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 41.0 ppb (32) N/A N/A 2.8 μg/m3 (12) 32.0
 
Feb. 16, 2020, 5 p.m. 3.4 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (31) N/A N/A 2.5 μg/m3 (10) 31.0
 
Feb. 16, 2020, 4 p.m. 2.8 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 41.0 ppb (32) N/A N/A 2.7 μg/m3 (11) 32.0
 
Feb. 16, 2020, 3 p.m. 9.7 ppb (9) 2.2 ppb (2) N/A 8.0 ppb (7) N/A N/A 29.0 ppb (22) N/A N/A 3.2 μg/m3 (13) 22.0
 
Feb. 16, 2020, 2 p.m. 4.2 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (28) N/A N/A 2.4 μg/m3 (10) 28.0
 
Feb. 16, 2020, 1 p.m. 5.0 ppb (5) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (23) N/A N/A 1.9 μg/m3 (8) 23.0
 
Feb. 16, 2020, noon 5.7 ppb (5) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A 29.0 ppb (22) N/A N/A 1.8 μg/m3 (8) 22.0
 
Feb. 16, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 2.2 μg/m3 (9) 25.0
 
Feb. 16, 2020, 10 a.m. 3.3 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (25) N/A N/A 1.6 μg/m3 (7) 25.0
 
Feb. 16, 2020, 9 a.m. 3.6 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (25) N/A N/A 1.4 μg/m3 (6) 25.0
 
Feb. 16, 2020, 8 a.m. 3.5 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 33.0 ppb (25) N/A N/A 1.6 μg/m3 (7) 25.0
 
Feb. 16, 2020, 7 a.m. 3.5 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (25) N/A N/A 1.6 μg/m3 (7) 25.0
 
Feb. 16, 2020, 6 a.m. 3.5 ppb (3) -0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 32.0 ppb (25) N/A N/A 2.0 μg/m3 (8) 25.0
 
Feb. 16, 2020, 5 a.m. 6.6 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 32.0 ppb (25) N/A N/A 4.5 μg/m3 (19) 25.0
 
Feb. 16, 2020, 4 a.m. 6.1 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 33.0 ppb (25) N/A N/A 4.6 μg/m3 (19) 25.0
 
Feb. 16, 2020, 3 a.m. 9.2 ppb (9) 1.3 ppb (1) N/A 8.0 ppb (7) N/A N/A 37.0 ppb (28) N/A N/A 2.1 μg/m3 (9) 28.0
 
Feb. 16, 2020, 2 a.m. 7.6 ppb (7) 0.4 ppb (0) N/A 7.0 ppb (6) N/A N/A 35.0 ppb (27) N/A N/A 2.7 μg/m3 (11) 27.0
 
Feb. 16, 2020, 1 a.m. 6.5 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 36.0 ppb (28) N/A N/A 2.3 μg/m3 (10) 28.0
 
Feb. 16, 2020, midnight 2.6 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (31) N/A N/A 2.1 μg/m3 (9) 31.0
 
Feb. 15, 2020, 11 p.m. 1.8 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (33) N/A N/A 1.6 μg/m3 (7) 33.0
 
Feb. 15, 2020, 10 p.m. 1.7 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (34) N/A N/A 1.5 μg/m3 (6) 34.0
 
Feb. 15, 2020, 9 p.m. 1.0 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) N/A N/A 1.4 μg/m3 (6) 37.0
 
Feb. 15, 2020, 8 p.m. 1.2 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) N/A N/A 1.5 μg/m3 (6) 36.0
 
Feb. 15, 2020, 7 p.m. 1.3 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) N/A N/A 1.7 μg/m3 (7) 35.0
 
Feb. 15, 2020, 6 p.m. 2.8 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) N/A N/A 2.2 μg/m3 (9) 35.0
 
Feb. 15, 2020, 5 p.m. 15.7 ppb (15) 7.8 ppb (7) N/A 8.0 ppb (7) N/A N/A 35.0 ppb (27) N/A N/A 3.4 μg/m3 (14) 27.0
 
Feb. 15, 2020, 4 p.m. 16.1 ppb (15) 7.8 ppb (7) N/A 8.0 ppb (7) N/A N/A 28.0 ppb (22) N/A N/A 3.6 μg/m3 (15) 22.0
 
Feb. 15, 2020, 3 p.m. 23.8 ppb (22) 10.5 ppb (10) N/A 13.0 ppb (12) N/A N/A 17.0 ppb (13) N/A N/A 4.2 μg/m3 (18) 22.0
 
Feb. 15, 2020, 2 p.m. 35.4 ppb (33) 17.1 ppb (16) N/A 18.0 ppb (17) N/A N/A 9.0 ppb (7) N/A N/A 4.1 μg/m3 (17) 33.0
 
Feb. 15, 2020, 1 p.m. 12.4 ppb (11) 1.3 ppb (1) N/A 11.0 ppb (10) N/A N/A 17.0 ppb (13) N/A N/A 2.9 μg/m3 (12) 13.0
 
Feb. 15, 2020, noon 13.3 ppb (12) 1.6 ppb (1) N/A 12.0 ppb (11) N/A N/A 16.0 ppb (12) N/A N/A 3.8 μg/m3 (16) 16.0
 
Feb. 15, 2020, 11 a.m. 12.8 ppb (12) 2.3 ppb (2) N/A 11.0 ppb (10) N/A N/A N/A N/A N/A 4.8 μg/m3 (20) 20.0
 
Feb. 15, 2020, 10 a.m. 9.2 ppb (9) 0.5 ppb (0) N/A 9.0 ppb (8) N/A N/A 22.0 ppb (17) N/A N/A 3.7 μg/m3 (15) 17.0
 
Feb. 15, 2020, 9 a.m. 11.2 ppb (10) 1.4 ppb (1) N/A 10.0 ppb (9) N/A N/A 19.0 ppb (15) N/A N/A 4.1 μg/m3 (17) 17.0
 
Feb. 15, 2020, 8 a.m. 11.8 ppb (11) 2.0 ppb (2) N/A 10.0 ppb (9) N/A N/A 19.0 ppb (15) N/A N/A 5.3 μg/m3 (22) 22.0
 
Feb. 15, 2020, 7 a.m. 11.3 ppb (10) 0.4 ppb (0) N/A 11.0 ppb (10) N/A N/A 27.0 ppb (21) N/A N/A 3.1 μg/m3 (13) 21.0
 
Feb. 15, 2020, 6 a.m. 6.9 ppb (6) 0.3 ppb (0) N/A 7.0 ppb (6) N/A N/A 31.0 ppb (24) N/A N/A 1.5 μg/m3 (6) 24.0
 
Feb. 15, 2020, 5 a.m. 8.9 ppb (8) 0.7 ppb (1) N/A 8.0 ppb (7) N/A N/A 30.0 ppb (23) N/A N/A 2.0 μg/m3 (8) 23.0
 
Feb. 15, 2020, 4 a.m. 15.3 ppb (14) 1.6 ppb (1) N/A 14.0 ppb (13) N/A N/A 26.0 ppb (20) N/A N/A 3.1 μg/m3 (13) 20.0
 
Feb. 15, 2020, 3 a.m. 9.0 ppb (8) 0.4 ppb (0) N/A 9.0 ppb (8) N/A N/A 31.0 ppb (24) N/A N/A 8.2 μg/m3 (34) 34.0
 
Feb. 15, 2020, 2 a.m. 8.8 ppb (8) 0.5 ppb (0) N/A 8.0 ppb (7) N/A N/A 31.0 ppb (24) N/A N/A 4.8 μg/m3 (20) 24.0
 
Feb. 15, 2020, 1 a.m. 6.8 ppb (6) 0.9 ppb (1) N/A 6.0 ppb (6) N/A N/A 34.0 ppb (26) N/A N/A 2.3 μg/m3 (10) 26.0
 
Feb. 15, 2020, midnight 3.8 ppb (4) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (31) N/A N/A 1.6 μg/m3 (7) 31.0
 
Feb. 14, 2020, 11 p.m. 1.5 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) N/A N/A 1.0 μg/m3 (4) 35.0
 
Feb. 14, 2020, 10 p.m. 1.6 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) N/A N/A 1.0 μg/m3 (4) 35.0
 
Feb. 14, 2020, 9 p.m. 1.3 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) N/A N/A 1.0 μg/m3 (4) 35.0
 
Feb. 14, 2020, 8 p.m. 2.0 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) N/A N/A 1.0 μg/m3 (4) 35.0
 
Feb. 14, 2020, 7 p.m. 1.4 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) N/A N/A 1.0 μg/m3 (4) 35.0
 
Feb. 14, 2020, 6 p.m. 4.7 ppb (4) 1.9 ppb (2) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (31) N/A N/A 2.1 μg/m3 (9) 31.0
 
Feb. 14, 2020, 5 p.m. 8.3 ppb (8) 4.1 ppb (4) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (28) N/A N/A 2.0 μg/m3 (8) 28.0
 
Feb. 14, 2020, 4 p.m. 25.3 ppb (23) 13.7 ppb (13) N/A 12.0 ppb (11) N/A N/A 27.0 ppb (21) N/A N/A 3.6 μg/m3 (15) 23.0
 
Feb. 14, 2020, 3 p.m. 45.3 ppb (42) 26.2 ppb (24) N/A 19.0 ppb (18) N/A N/A 12.0 ppb (9) N/A N/A 5.5 μg/m3 (23) 42.0
 
Feb. 14, 2020, 2 p.m. 37.9 ppb (35) 20.2 ppb (19) N/A 18.0 ppb (17) N/A N/A 10.0 ppb (8) N/A N/A 6.3 μg/m3 (26) 35.0
 
Feb. 14, 2020, 1 p.m. 44.3 ppb (41) 23.3 ppb (22) N/A 21.0 ppb (19) N/A N/A 11.0 ppb (8) N/A N/A 3.0 μg/m3 (12) 41.0
 
Feb. 14, 2020, noon 25.9 ppb (24) 6.4 ppb (6) N/A 20.0 ppb (19) N/A N/A 10.0 ppb (8) N/A N/A 2.4 μg/m3 (10) 24.0
 
Feb. 14, 2020, 11 a.m. 12.1 ppb (11) 1.8 ppb (2) N/A 10.0 ppb (9) N/A N/A 18.0 ppb (14) N/A N/A 1.2 μg/m3 (5) 14.0
 
Feb. 14, 2020, 10 a.m. 9.6 ppb (9) 1.0 ppb (1) N/A 9.0 ppb (8) N/A N/A 20.0 ppb (15) N/A N/A 1.0 μg/m3 (4) 15.0
 
Feb. 14, 2020, 9 a.m. 12.6 ppb (12) 2.0 ppb (2) N/A 11.0 ppb (10) N/A N/A 16.0 ppb (12) N/A N/A 2.5 μg/m3 (10) 12.0
 
Feb. 14, 2020, 8 a.m. 18.9 ppb (18) 2.2 ppb (2) N/A 17.0 ppb (16) N/A N/A 11.0 ppb (8) N/A N/A 4.9 μg/m3 (20) 20.0
 
Feb. 14, 2020, 7 a.m. 17.0 ppb (16) 1.2 ppb (1) N/A 16.0 ppb (15) N/A N/A 13.0 ppb (10) N/A N/A 3.5 μg/m3 (15) 16.0
 
Feb. 14, 2020, 6 a.m. 19.1 ppb (18) 2.8 ppb (3) N/A 16.0 ppb (15) N/A N/A 15.0 ppb (12) N/A N/A 5.9 μg/m3 (25) 25.0
 
Feb. 14, 2020, 5 a.m. 19.4 ppb (18) 2.3 ppb (2) N/A 17.0 ppb (16) N/A N/A 13.0 ppb (10) N/A N/A 9.0 μg/m3 (38) 38.0
 
Feb. 14, 2020, 4 a.m. 16.8 ppb (16) 3.0 ppb (3) N/A 14.0 ppb (13) N/A N/A 21.0 ppb (16) N/A N/A 2.4 μg/m3 (10) 16.0
 
Feb. 14, 2020, 3 a.m. 26.8 ppb (25) 7.1 ppb (7) N/A 20.0 ppb (19) N/A N/A 17.0 ppb (13) N/A N/A 3.0 μg/m3 (12) 25.0
 
Feb. 14, 2020, 2 a.m. 30.2 ppb (28) 7.5 ppb (7) N/A 23.0 ppb (21) N/A N/A 17.0 ppb (13) N/A N/A 2.7 μg/m3 (11) 28.0
 
Feb. 14, 2020, 1 a.m. 42.6 ppb (39) 19.0 ppb (18) N/A 24.0 ppb (22) N/A N/A 14.0 ppb (11) N/A N/A 4.4 μg/m3 (18) 39.0
 
Feb. 14, 2020, midnight 23.1 ppb (21) 11.6 ppb (11) N/A 12.0 ppb (11) N/A N/A 33.0 ppb (25) N/A N/A 3.0 μg/m3 (12) 25.0
 
Feb. 13, 2020, 11 p.m. 3.6 ppb (3) 1.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (34) N/A N/A 1.5 μg/m3 (6) 34.0
 
Feb. 13, 2020, 10 p.m. 4.0 ppb (4) 1.8 ppb (2) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (33) N/A N/A 1.5 μg/m3 (6) 33.0
 
Feb. 13, 2020, 9 p.m. 12.1 ppb (11) 10.0 ppb (9) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (33) N/A N/A 1.7 μg/m3 (7) 33.0
 
Feb. 13, 2020, 8 p.m. 1.3 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (33) N/A N/A 1.6 μg/m3 (7) 33.0
 
Feb. 13, 2020, 7 p.m. 1.6 ppb (1) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (32) N/A N/A 1.8 μg/m3 (8) 32.0
 
Feb. 13, 2020, 6 p.m. 1.4 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (29) N/A N/A 2.0 μg/m3 (8) 29.0
 
Feb. 13, 2020, 5 p.m. 3.8 ppb (4) 1.9 ppb (2) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (25) N/A N/A 2.4 μg/m3 (10) 25.0
 
Feb. 13, 2020, 4 p.m. 13.8 ppb (13) 7.3 ppb (7) N/A 7.0 ppb (6) N/A N/A 26.0 ppb (20) N/A N/A 3.8 μg/m3 (16) 20.0
 
Feb. 13, 2020, 3 p.m. 31.0 ppb (29) 17.7 ppb (16) N/A 13.0 ppb (12) N/A N/A 16.0 ppb (12) N/A N/A 5.7 μg/m3 (24) 29.0
 
Feb. 13, 2020, 2 p.m. 48.2 ppb (45) 27.3 ppb (25) N/A 21.0 ppb (19) N/A N/A 9.0 ppb (7) N/A N/A 5.2 μg/m3 (22) 45.0
 
Feb. 13, 2020, 1 p.m. 111.8 ppb (102) 91.8 ppb (90) N/A 26.0 ppb (24) N/A N/A 5.0 ppb (4) N/A N/A 5.8 μg/m3 (24) 102.0
 
Feb. 13, 2020, noon 31.7 ppb (29) 12.1 ppb (11) N/A 20.0 ppb (19) N/A N/A 5.0 ppb (4) N/A N/A 3.4 μg/m3 (14) 29.0
 
Feb. 13, 2020, 11 a.m. 22.8 ppb (21) 4.4 ppb (4) N/A 18.0 ppb (17) N/A N/A 5.0 ppb (4) N/A N/A 5.2 μg/m3 (22) 22.0
 
Feb. 13, 2020, 10 a.m. 14.2 ppb (13) 1.9 ppb (2) N/A 12.0 ppb (11) N/A N/A 11.0 ppb (8) N/A N/A 3.3 μg/m3 (14) 14.0
 
Feb. 13, 2020, 9 a.m. 21.8 ppb (20) 5.3 ppb (5) N/A 17.0 ppb (16) N/A N/A 8.0 ppb (6) N/A N/A 5.1 μg/m3 (21) 21.0
 
Feb. 13, 2020, 8 a.m. 20.9 ppb (19) 1.7 ppb (2) N/A 19.0 ppb (18) N/A N/A 5.0 ppb (4) N/A N/A 4.7 μg/m3 (20) 20.0
 
Feb. 13, 2020, 7 a.m. 22.3 ppb (21) 2.3 ppb (2) N/A 20.0 ppb (19) N/A N/A 6.0 ppb (5) N/A N/A 4.8 μg/m3 (20) 21.0
 
Feb. 13, 2020, 6 a.m. 12.8 ppb (12) 1.3 ppb (1) N/A 12.0 ppb (11) N/A N/A 14.0 ppb (11) N/A N/A 7.1 μg/m3 (30) 30.0
 
Feb. 13, 2020, 5 a.m. 8.6 ppb (8) 1.1 ppb (1) N/A 8.0 ppb (7) N/A N/A 19.0 ppb (15) N/A N/A 3.5 μg/m3 (15) 15.0
 
Feb. 13, 2020, 4 a.m. 6.0 ppb (6) 1.9 ppb (2) N/A 4.0 ppb (4) N/A N/A 24.0 ppb (18) N/A N/A 2.9 μg/m3 (12) 18.0
 
Feb. 13, 2020, 3 a.m. 12.3 ppb (11) 3.6 ppb (3) N/A 9.0 ppb (8) N/A N/A 29.0 ppb (22) N/A N/A 5.4 μg/m3 (23) 23.0
 
Feb. 13, 2020, 2 a.m. 14.4 ppb (13) 3.5 ppb (3) N/A 11.0 ppb (10) N/A N/A 28.0 ppb (22) N/A N/A 6.8 μg/m3 (28) 28.0
 
Feb. 13, 2020, 1 a.m. 11.6 ppb (11) 4.6 ppb (4) N/A 7.0 ppb (6) N/A N/A 30.0 ppb (23) N/A N/A 4.3 μg/m3 (18) 23.0
 
Feb. 13, 2020, midnight 1.0 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 39.0 ppb (30) N/A N/A 0.9 μg/m3 (4) 30.0
 
Feb. 12, 2020, 11 p.m. 7.0 ppb (6) 2.8 ppb (3) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (32) N/A N/A 1.3 μg/m3 (5) 32.0
 
Feb. 12, 2020, 10 p.m. 4.7 ppb (4) 2.8 ppb (3) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (33) N/A N/A 1.4 μg/m3 (6) 33.0
 
Feb. 12, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 1.1 μg/m3 (5) 33.0
 
Feb. 12, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A N/A 32.0
 
Feb. 12, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 1.6 μg/m3 (7) 29.0
 
Feb. 12, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.7 μg/m3 (11) 11.0
 
Feb. 12, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.5 μg/m3 (10) 10.0
 
Feb. 12, 2020, 4 p.m. 14.3 ppb (13) 7.2 ppb (7) N/A 7.0 ppb (6) N/A N/A 26.0 ppb (20) N/A N/A 3.0 μg/m3 (12) 20.0
 
Feb. 12, 2020, 3 p.m. 44.7 ppb (41) 28.5 ppb (26) N/A 16.0 ppb (15) N/A N/A 14.0 ppb (11) N/A N/A 5.3 μg/m3 (22) 41.0
 
Feb. 12, 2020, 2 p.m. 47.8 ppb (44) 29.6 ppb (27) N/A 18.0 ppb (17) N/A N/A 4.0 ppb (3) N/A N/A 6.5 μg/m3 (27) 44.0
 
Feb. 12, 2020, 1 p.m. 86.9 ppb (85) 67.6 ppb (64) N/A 32.0 ppb (30) N/A N/A 3.0 ppb (2) N/A N/A 6.8 μg/m3 (28) 85.0
 
Feb. 12, 2020, noon 16.8 ppb (16) 5.1 ppb (5) N/A 12.0 ppb (11) N/A N/A 9.0 ppb (7) N/A N/A 5.9 μg/m3 (25) 25.0
 
Feb. 12, 2020, 11 a.m. 18.8 ppb (17) 2.6 ppb (2) N/A 16.0 ppb (15) N/A N/A 8.0 ppb (6) N/A N/A 9.6 μg/m3 (40) 40.0
 
Feb. 12, 2020, 10 a.m. 12.0 ppb (11) 0.8 ppb (1) N/A 11.0 ppb (10) N/A N/A 13.0 ppb (10) N/A N/A 5.8 μg/m3 (24) 24.0
 
Feb. 12, 2020, 9 a.m. 15.6 ppb (14) 1.0 ppb (1) N/A 15.0 ppb (14) N/A N/A 11.0 ppb (8) N/A N/A 4.7 μg/m3 (20) 20.0
 
Feb. 12, 2020, 8 a.m. 19.7 ppb (18) 1.8 ppb (2) N/A 18.0 ppb (17) N/A N/A 7.0 ppb (5) N/A N/A 6.4 μg/m3 (27) 27.0
 
Feb. 12, 2020, 7 a.m. 13.6 ppb (13) 0.8 ppb (1) N/A 13.0 ppb (12) N/A N/A 14.0 ppb (11) N/A N/A 11.2 μg/m3 (47) 47.0
 
Feb. 12, 2020, 6 a.m. 21.9 ppb (20) 3.6 ppb (3) N/A 18.0 ppb (17) N/A N/A 9.0 ppb (7) N/A N/A 6.6 μg/m3 (28) 28.0
 
Feb. 12, 2020, 5 a.m. 41.2 ppb (38) 17.1 ppb (16) N/A 24.0 ppb (22) N/A N/A 5.0 ppb (4) N/A N/A 8.8 μg/m3 (37) 38.0