AQSQID: 490210005

Site Name: Enoch

Location: Cedar City (3860 N), UT

Reporting: True, Located: True

Current AQI: 53.0

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
April 8, 2020, 8 a.m. 12.5 ppb (12) 1.0 ppb (1) N/A 12.0 ppb (11) N/A N/A 17.0 ppb (13) N/A N/A 13.3 μg/m3 (53) 53.0
 
April 8, 2020, 7 a.m. 13.8 ppb (13) 1.5 ppb (1) N/A 12.0 ppb (11) N/A N/A 16.0 ppb (12) N/A N/A 3.4 μg/m3 (14) 14.0
 
April 8, 2020, 6 a.m. 9.2 ppb (9) 0.9 ppb (1) N/A 8.0 ppb (7) N/A N/A 22.0 ppb (17) N/A N/A 4.5 μg/m3 (19) 19.0
 
April 8, 2020, 5 a.m. 6.1 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 27.0 ppb (21) N/A N/A 4.4 μg/m3 (18) 21.0
 
April 8, 2020, 4 a.m. 8.2 ppb (8) 2.3 ppb (2) N/A 6.0 ppb (6) N/A N/A 29.0 ppb (22) N/A N/A 4.0 μg/m3 (17) 22.0
 
April 8, 2020, 3 a.m. 8.5 ppb (8) 2.0 ppb (2) N/A 7.0 ppb (6) N/A N/A 32.0 ppb (25) N/A N/A 2.3 μg/m3 (10) 25.0
 
April 8, 2020, 2 a.m. 12.7 ppb (12) 4.2 ppb (4) N/A 9.0 ppb (8) N/A N/A 31.0 ppb (24) N/A N/A 3.2 μg/m3 (13) 24.0
 
April 8, 2020, 1 a.m. 8.5 ppb (8) 3.0 ppb (3) N/A 6.0 ppb (6) N/A N/A 42.0 ppb (32) N/A N/A 2.5 μg/m3 (10) 32.0
 
April 8, 2020, midnight 6.7 ppb (6) 3.8 ppb (4) N/A 3.0 ppb (3) N/A N/A 45.0 ppb (35) N/A N/A 2.6 μg/m3 (11) 35.0
 
April 7, 2020, 11 p.m. 3.9 ppb (4) 1.9 ppb (2) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (36) N/A N/A 2.8 μg/m3 (12) 36.0
 
April 7, 2020, 10 p.m. 1.4 ppb (1) 0.7 ppb (1) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) N/A N/A 2.8 μg/m3 (12) 37.0
 
April 7, 2020, 9 p.m. 0.8 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) N/A N/A 2.9 μg/m3 (12) 35.0
 
April 7, 2020, 8 p.m. 0.7 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) N/A N/A 3.5 μg/m3 (15) 35.0
 
April 7, 2020, 7 p.m. 1.7 ppb (2) 0.7 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
 
April 7, 2020, 6 p.m. 4.4 ppb (4) 2.4 ppb (2) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) N/A N/A 4.5 μg/m3 (19) 35.0
 
April 7, 2020, 5 p.m. 4.8 ppb (4) 3.1 ppb (3) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) N/A N/A 4.8 μg/m3 (20) 35.0
 
April 7, 2020, 4 p.m. 2.9 ppb (3) 1.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) N/A N/A 8.3 μg/m3 (35) 35.0
 
April 7, 2020, 3 p.m. 7.7 ppb (7) 4.3 ppb (4) N/A 4.0 ppb (4) N/A N/A 39.0 ppb (30) N/A N/A 5.0 μg/m3 (21) 30.0
 
April 7, 2020, 2 p.m. 20.2 ppb (19) 8.4 ppb (8) N/A 12.0 ppb (11) N/A N/A 23.0 ppb (18) N/A N/A 6.2 μg/m3 (26) 26.0
 
April 7, 2020, 1 p.m. 42.1 ppb (39) 21.3 ppb (20) N/A 21.0 ppb (19) N/A N/A 8.0 ppb (6) N/A N/A 6.9 μg/m3 (29) 39.0
 
April 7, 2020, noon 21.3 ppb (20) 8.4 ppb (8) N/A 13.0 ppb (12) N/A N/A 18.0 ppb (14) N/A N/A 4.9 μg/m3 (20) 20.0
 
April 7, 2020, 11 a.m. 13.1 ppb (12) 4.2 ppb (4) N/A 9.0 ppb (8) N/A N/A 15.0 ppb (12) N/A N/A 4.5 μg/m3 (19) 19.0
 
April 7, 2020, 10 a.m. 8.2 ppb (8) 1.9 ppb (2) N/A 6.0 ppb (6) N/A N/A 19.0 ppb (15) N/A N/A 4.6 μg/m3 (19) 19.0
 
April 7, 2020, 9 a.m. 4.7 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (20) N/A N/A 4.7 μg/m3 (20) 20.0
 
April 7, 2020, 8 a.m. 4.8 ppb (4) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 29.0 ppb (22) N/A N/A 4.4 μg/m3 (18) 22.0
 
April 7, 2020, 7 a.m. 1.4 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 35.0 ppb (27) N/A N/A 4.0 μg/m3 (17) 27.0
 
April 7, 2020, 6 a.m. 1.8 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (28) N/A N/A 3.8 μg/m3 (16) 28.0
 
April 7, 2020, 5 a.m. 3.0 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (28) N/A N/A 3.9 μg/m3 (16) 28.0
 
April 7, 2020, 4 a.m. 0.8 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (29) N/A N/A 3.8 μg/m3 (16) 29.0
 
April 7, 2020, 3 a.m. 1.0 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (31) N/A N/A 3.9 μg/m3 (16) 31.0
 
April 7, 2020, 2 a.m. 1.7 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (31) N/A N/A 3.9 μg/m3 (16) 31.0
 
April 7, 2020, 1 a.m. 1.1 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (32) N/A N/A 4.0 μg/m3 (17) 32.0
 
April 7, 2020, midnight 0.9 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (33) N/A N/A 3.7 μg/m3 (15) 33.0
 
April 6, 2020, 11 p.m. 1.1 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (34) N/A N/A 4.0 μg/m3 (17) 34.0
 
April 6, 2020, 10 p.m. 1.0 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (34) N/A N/A 4.3 μg/m3 (18) 34.0
 
April 6, 2020, 9 p.m. 0.8 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (34) N/A N/A 4.4 μg/m3 (18) 34.0
 
April 6, 2020, 8 p.m. 0.7 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (34) N/A N/A 4.6 μg/m3 (19) 34.0
 
April 6, 2020, 7 p.m. 1.1 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) N/A N/A 4.4 μg/m3 (18) 35.0
 
April 6, 2020, 6 p.m. 0.9 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) N/A N/A 4.6 μg/m3 (19) 35.0
 
April 6, 2020, 5 p.m. 0.9 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) N/A N/A 4.3 μg/m3 (18) 35.0
 
April 6, 2020, 4 p.m. 1.3 ppb (1) 0.7 ppb (1) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) N/A N/A 4.3 μg/m3 (18) 35.0
 
April 6, 2020, 3 p.m. 1.5 ppb (1) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (34) N/A N/A 3.8 μg/m3 (16) 34.0
 
April 6, 2020, 2 p.m. 2.0 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (33) N/A N/A 3.5 μg/m3 (15) 33.0
 
April 6, 2020, 1 p.m. 2.0 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (33) N/A N/A 3.0 μg/m3 (12) 33.0
 
April 6, 2020, noon 1.3 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (33) N/A N/A 2.9 μg/m3 (12) 33.0
 
April 6, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 2.7 μg/m3 (11) 33.0
 
April 6, 2020, 10 a.m. 1.4 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (32) N/A N/A 2.7 μg/m3 (11) 32.0
 
April 6, 2020, 9 a.m. 0.5 ppb (0) 0.1 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
 
April 6, 2020, 8 a.m. 0.6 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (33) N/A N/A 3.3 μg/m3 (14) 33.0
 
April 6, 2020, 7 a.m. 0.6 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (32) N/A N/A 3.2 μg/m3 (13) 32.0
 
April 6, 2020, 6 a.m. 0.5 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (31) N/A N/A 2.6 μg/m3 (11) 31.0
 
April 6, 2020, 5 a.m. 0.5 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (32) N/A N/A 2.6 μg/m3 (11) 32.0
 
April 6, 2020, 4 a.m. 0.8 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (32) N/A N/A 2.9 μg/m3 (12) 32.0
 
April 6, 2020, 3 a.m. 0.9 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (32) N/A N/A 3.4 μg/m3 (14) 32.0
 
April 6, 2020, 2 a.m. 0.8 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (33) N/A N/A 3.7 μg/m3 (15) 33.0
 
April 6, 2020, 1 a.m. 0.8 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (34) N/A N/A 3.6 μg/m3 (15) 34.0
 
April 6, 2020, midnight 0.7 ppb (1) 0.2 ppb (0) 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
 
April 5, 2020, 11 p.m. 0.8 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) N/A N/A 3.8 μg/m3 (16) 35.0
 
April 5, 2020, 10 p.m. 0.5 ppb (0) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) N/A N/A 4.3 μg/m3 (18) 36.0
 
April 5, 2020, 9 p.m. 1.1 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) N/A N/A 4.4 μg/m3 (18) 35.0
 
April 5, 2020, 8 p.m. 0.6 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) N/A N/A 4.7 μg/m3 (20) 36.0
 
April 5, 2020, 7 p.m. 0.7 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) N/A N/A 4.8 μg/m3 (20) 35.0
 
April 5, 2020, 6 p.m. 1.5 ppb (1) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) N/A N/A 5.1 μg/m3 (21) 35.0
 
April 5, 2020, 5 p.m. 1.0 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) N/A N/A 5.2 μg/m3 (22) 35.0
 
April 5, 2020, 4 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 5.6 μg/m3 (23) 35.0
 
April 5, 2020, 3 p.m. 3.0 ppb (3) 1.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) N/A N/A 7.2 μg/m3 (30) 35.0
 
April 5, 2020, 2 p.m. 2.4 ppb (2) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) N/A N/A 7.2 μg/m3 (30) 35.0
 
April 5, 2020, 1 p.m. 4.5 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (32) N/A N/A 5.3 μg/m3 (22) 32.0
 
April 5, 2020, noon 6.0 ppb (6) -0.7 ppb (0) N/A 7.0 ppb (6) N/A N/A 34.0 ppb (26) N/A N/A 3.6 μg/m3 (15) 26.0
 
April 5, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 3.0 μg/m3 (12) 32.0
 
April 5, 2020, 10 a.m. 1.8 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (36) N/A N/A 3.1 μg/m3 (13) 36.0
 
April 5, 2020, 9 a.m. 1.1 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (38) N/A N/A 3.8 μg/m3 (16) 38.0
 
April 5, 2020, 8 a.m. 1.4 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 50.0 ppb (38) N/A N/A 3.9 μg/m3 (16) 38.0
 
April 5, 2020, 7 a.m. 0.7 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 51.0 ppb (39) N/A N/A 3.6 μg/m3 (15) 39.0
 
April 5, 2020, 6 a.m. 0.7 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 51.0 ppb (39) N/A N/A 2.9 μg/m3 (12) 39.0
 
April 5, 2020, 5 a.m. 1.1 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) N/A N/A 2.4 μg/m3 (10) 37.0
 
April 5, 2020, 4 a.m. 1.4 ppb (1) 0.0 ppb (0) 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
 
April 5, 2020, 3 a.m. 1.5 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (35) N/A N/A 2.2 μg/m3 (9) 35.0
 
April 5, 2020, 2 a.m. 1.6 ppb (1) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (35) N/A N/A 2.4 μg/m3 (10) 35.0
 
April 5, 2020, 1 a.m. 0.9 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (38) N/A N/A 2.3 μg/m3 (10) 38.0
 
April 5, 2020, midnight 1.0 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 50.0 ppb (38) N/A N/A 2.1 μg/m3 (9) 38.0
 
April 4, 2020, 11 p.m. 0.9 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 51.0 ppb (39) N/A N/A 2.1 μg/m3 (9) 39.0
 
April 4, 2020, 10 p.m. 0.8 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 52.0 ppb (40) N/A N/A 2.2 μg/m3 (9) 40.0
 
April 4, 2020, 9 p.m. 1.0 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 53.0 ppb (41) N/A N/A 2.5 μg/m3 (10) 41.0
 
April 4, 2020, 8 p.m. 1.5 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A 52.0 ppb (40) N/A N/A 2.5 μg/m3 (10) 40.0
 
April 4, 2020, 7 p.m. 0.8 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 50.0 ppb (38) N/A N/A 2.2 μg/m3 (9) 38.0
 
April 4, 2020, 6 p.m. 2.5 ppb (2) 1.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 50.0 ppb (38) N/A N/A 2.8 μg/m3 (12) 38.0
 
April 4, 2020, 5 p.m. 2.5 ppb (2) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 49.0 ppb (38) N/A N/A 3.0 μg/m3 (12) 38.0
 
April 4, 2020, 4 p.m. 3.8 ppb (4) 1.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 43.0 ppb (33) N/A N/A 5.4 μg/m3 (23) 33.0
 
April 4, 2020, 3 p.m. 9.1 ppb (8) 4.8 ppb (4) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (26) N/A N/A 9.2 μg/m3 (38) 38.0
 
April 4, 2020, 2 p.m. 17.1 ppb (16) 7.8 ppb (7) N/A 9.0 ppb (8) N/A N/A 20.0 ppb (15) N/A N/A 3.6 μg/m3 (15) 16.0
 
April 4, 2020, 1 p.m. 20.5 ppb (19) 7.8 ppb (7) N/A 13.0 ppb (12) N/A N/A 15.0 ppb (12) N/A N/A 2.6 μg/m3 (11) 19.0
 
April 4, 2020, noon 17.8 ppb (16) 6.1 ppb (6) N/A 12.0 ppb (11) N/A N/A 13.0 ppb (10) N/A N/A 2.4 μg/m3 (10) 16.0
 
April 4, 2020, 11 a.m. 5.3 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
April 4, 2020, 10 a.m. 6.8 ppb (6) 0.9 ppb (1) N/A 6.0 ppb (6) N/A N/A 23.0 ppb (18) N/A N/A 1.4 μg/m3 (6) 18.0
 
April 4, 2020, 9 a.m. 5.1 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 23.0 ppb (18) N/A N/A 3.0 μg/m3 (12) 18.0
 
April 4, 2020, 8 a.m. 6.9 ppb (6) 0.4 ppb (0) N/A 7.0 ppb (6) N/A N/A 20.0 ppb (15) N/A N/A 2.6 μg/m3 (11) 15.0
 
April 4, 2020, 7 a.m. 6.1 ppb (6) 0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A 26.0 ppb (20) N/A N/A 2.2 μg/m3 (9) 20.0
 
April 4, 2020, 6 a.m. 8.8 ppb (8) 1.5 ppb (1) N/A 7.0 ppb (6) N/A N/A 25.0 ppb (19) N/A N/A 2.6 μg/m3 (11) 19.0
 
April 4, 2020, 5 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 2.1 μg/m3 (9) 24.0
 
April 4, 2020, 4 a.m. 6.2 ppb (6) 0.9 ppb (1) N/A 5.0 ppb (5) N/A N/A 34.0 ppb (26) N/A N/A 2.4 μg/m3 (10) 26.0
 
April 4, 2020, 3 a.m. 2.8 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (28) N/A N/A 2.4 μg/m3 (10) 28.0
 
April 4, 2020, 2 a.m. 4.1 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (28) N/A N/A 2.3 μg/m3 (10) 28.0
 
April 4, 2020, 1 a.m. 1.7 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (32) N/A N/A 2.0 μg/m3 (8) 32.0
 
April 4, 2020, midnight 0.8 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) N/A N/A 1.7 μg/m3 (7) 36.0
 
April 3, 2020, 11 p.m. 1.0 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) N/A N/A 2.0 μg/m3 (8) 36.0
 
April 3, 2020, 10 p.m. 1.1 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) N/A N/A 1.9 μg/m3 (8) 36.0
 
April 3, 2020, 9 p.m. 2.8 ppb (3) 1.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (36) N/A N/A 2.2 μg/m3 (9) 36.0
 
April 3, 2020, 8 p.m. 2.6 ppb (2) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 48.0 ppb (37) N/A N/A 2.1 μg/m3 (9) 37.0
 
April 3, 2020, 7 p.m. 2.5 ppb (2) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 48.0 ppb (37) N/A N/A 2.6 μg/m3 (11) 37.0
 
April 3, 2020, 6 p.m. 5.4 ppb (5) 2.4 ppb (2) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (34) N/A N/A 3.8 μg/m3 (16) 34.0
 
April 3, 2020, 5 p.m. 5.5 ppb (5) 2.5 ppb (2) N/A 3.0 ppb (3) N/A N/A 41.0 ppb (32) N/A N/A 9.0 μg/m3 (38) 38.0
 
April 3, 2020, 4 p.m. 8.2 ppb (8) 3.3 ppb (3) N/A 5.0 ppb (5) N/A N/A 36.0 ppb (28) N/A N/A 5.6 μg/m3 (23) 28.0
 
April 3, 2020, 3 p.m. 18.8 ppb (17) 8.3 ppb (8) N/A 11.0 ppb (10) N/A N/A 27.0 ppb (21) N/A N/A 5.3 μg/m3 (22) 22.0
 
April 3, 2020, 2 p.m. 35.0 ppb (32) 20.0 ppb (19) N/A 15.0 ppb (14) N/A N/A 12.0 ppb (9) N/A N/A 6.8 μg/m3 (28) 32.0
 
April 3, 2020, 1 p.m. 56.3 ppb (52) 36.1 ppb (33) N/A 20.0 ppb (19) N/A N/A 3.0 ppb (2) N/A N/A 6.2 μg/m3 (26) 52.0
 
April 3, 2020, noon 37.6 ppb (35) 18.3 ppb (17) N/A 19.0 ppb (18) N/A N/A 3.0 ppb (2) N/A N/A 5.0 μg/m3 (21) 35.0
 
April 3, 2020, 11 a.m. 24.8 ppb (23) 10.0 ppb (9) N/A 15.0 ppb (14) N/A N/A 6.0 ppb (5) N/A N/A 4.0 μg/m3 (17) 23.0
 
April 3, 2020, 10 a.m. 17.9 ppb (17) 6.8 ppb (6) N/A 11.0 ppb (10) N/A N/A 8.0 ppb (6) N/A N/A 4.1 μg/m3 (17) 17.0
 
April 3, 2020, 9 a.m. 8.4 ppb (8) 0.4 ppb (0) N/A 8.0 ppb (7) N/A N/A 12.0 ppb (9) N/A N/A 2.0 μg/m3 (8) 9.0
 
April 3, 2020, 8 a.m. 9.5 ppb (9) 1.0 ppb (1) N/A 9.0 ppb (8) N/A N/A 13.0 ppb (10) N/A N/A 2.5 μg/m3 (10) 10.0
 
April 3, 2020, 7 a.m. 4.7 ppb (4) 0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 24.0 ppb (18) N/A N/A 3.0 μg/m3 (12) 18.0
 
April 3, 2020, 6 a.m. 18.8 ppb (17) 5.2 ppb (5) N/A 14.0 ppb (13) N/A N/A 14.0 ppb (11) N/A N/A 2.9 μg/m3 (12) 17.0
 
April 3, 2020, 5 a.m. 3.6 ppb (3) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 32.0 ppb (25) N/A N/A 3.3 μg/m3 (14) 25.0
 
April 3, 2020, 4 a.m. 2.5 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (28) N/A N/A 2.0 μg/m3 (8) 28.0
 
April 3, 2020, 3 a.m. 3.0 ppb (3) 1.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (29) N/A N/A 1.1 μg/m3 (5) 29.0
 
April 3, 2020, 2 a.m. 3.6 ppb (3) 1.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (29) N/A N/A 1.8 μg/m3 (8) 29.0
 
April 3, 2020, 1 a.m. 3.5 ppb (3) 1.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (32) N/A N/A 1.7 μg/m3 (7) 32.0
 
April 3, 2020, midnight 2.3 ppb (2) 1.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) N/A N/A 1.2 μg/m3 (5) 35.0
 
April 2, 2020, 11 p.m. 2.1 ppb (2) 1.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) N/A N/A 1.2 μg/m3 (5) 37.0
 
April 2, 2020, 10 p.m. 2.3 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) N/A N/A 1.3 μg/m3 (5) 37.0
 
April 2, 2020, 9 p.m. 2.0 ppb (2) 0.9 ppb (1) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (38) N/A N/A 2.1 μg/m3 (9) 38.0
 
April 2, 2020, 8 p.m. 2.8 ppb (3) 1.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 49.0 ppb (38) N/A N/A 1.3 μg/m3 (5) 38.0
 
April 2, 2020, 7 p.m. 3.2 ppb (3) 1.9 ppb (2) 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
 
April 2, 2020, 6 p.m. 3.1 ppb (3) 1.7 ppb (2) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (35) N/A N/A 1.6 μg/m3 (7) 35.0
 
April 2, 2020, 5 p.m. 3.2 ppb (3) 1.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) N/A N/A 1.6 μg/m3 (7) 35.0
 
April 2, 2020, 4 p.m. 5.5 ppb (5) 2.2 ppb (2) N/A 3.0 ppb (3) N/A N/A 41.0 ppb (32) N/A N/A 1.6 μg/m3 (7) 32.0
 
April 2, 2020, 3 p.m. 2.4 ppb (2) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (29) N/A N/A 1.3 μg/m3 (5) 29.0
 
April 2, 2020, 2 p.m. 5.3 ppb (5) 2.1 ppb (2) N/A 3.0 ppb (3) N/A N/A 39.0 ppb (30) N/A N/A 1.3 μg/m3 (5) 30.0
 
April 2, 2020, 1 p.m. 4.8 ppb (4) 2.0 ppb (2) N/A 3.0 ppb (3) N/A N/A 38.0 ppb (29) N/A N/A 1.1 μg/m3 (5) 29.0
 
April 2, 2020, noon 3.7 ppb (3) 1.8 ppb (2) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (32) N/A N/A 1.0 μg/m3 (4) 32.0
 
April 2, 2020, 11 a.m. 1.0 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (31) N/A N/A 0.8 μg/m3 (3) 31.0
 
April 2, 2020, 10 a.m. 0.3 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 37.0 ppb (28) N/A N/A 0.4 μg/m3 (2) 28.0
 
April 2, 2020, 9 a.m. 0.4 ppb (0) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 35.0 ppb (27) N/A N/A 0.8 μg/m3 (3) 27.0
 
April 2, 2020, 8 a.m. 0.5 ppb (0) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 35.0 ppb (27) N/A N/A 1.2 μg/m3 (5) 27.0
 
April 2, 2020, 7 a.m. 0.6 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (31) N/A N/A 2.5 μg/m3 (10) 31.0
 
April 2, 2020, 6 a.m. 0.7 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (38) N/A N/A 2.6 μg/m3 (11) 38.0
 
April 2, 2020, 5 a.m. 0.9 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) N/A N/A 2.4 μg/m3 (10) 37.0
 
April 2, 2020, 4 a.m. 1.1 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) N/A N/A 2.4 μg/m3 (10) 36.0
 
April 2, 2020, 3 a.m. 1.8 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (35) N/A N/A 2.3 μg/m3 (10) 35.0
 
April 2, 2020, 2 a.m. 2.3 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (34) N/A N/A 2.1 μg/m3 (9) 34.0
 
April 2, 2020, 1 a.m. 0.8 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) N/A N/A 2.0 μg/m3 (8) 36.0
 
April 2, 2020, midnight 0.8 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) N/A N/A 1.7 μg/m3 (7) 37.0
 
April 1, 2020, 11 p.m. 0.9 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (38) N/A N/A 2.0 μg/m3 (8) 38.0
 
April 1, 2020, 10 p.m. 0.9 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) N/A N/A 2.1 μg/m3 (9) 37.0
 
April 1, 2020, 9 p.m. 1.2 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) N/A N/A 2.2 μg/m3 (9) 36.0
 
April 1, 2020, 8 p.m. 0.9 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) N/A N/A 1.9 μg/m3 (8) 36.0
 
April 1, 2020, 7 p.m. 0.8 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) N/A N/A 1.9 μg/m3 (8) 37.0
 
April 1, 2020, 6 p.m. 1.0 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) N/A N/A 2.1 μg/m3 (9) 37.0
 
April 1, 2020, 5 p.m. 2.4 ppb (2) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (36) N/A N/A 2.4 μg/m3 (10) 36.0
 
April 1, 2020, 4 p.m. 5.8 ppb (5) 2.4 ppb (2) N/A 4.0 ppb (4) N/A N/A 42.0 ppb (32) N/A N/A 3.2 μg/m3 (13) 32.0
 
April 1, 2020, 3 p.m. 8.4 ppb (8) 4.3 ppb (4) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (22) N/A N/A 3.6 μg/m3 (15) 22.0
 
April 1, 2020, 2 p.m. 28.4 ppb (26) 14.3 ppb (13) N/A 14.0 ppb (13) N/A N/A 15.0 ppb (12) N/A N/A 4.1 μg/m3 (17) 26.0
 
April 1, 2020, 1 p.m. 42.9 ppb (40) 21.4 ppb (20) N/A 22.0 ppb (20) N/A N/A 7.0 ppb (5) N/A N/A 3.9 μg/m3 (16) 40.0
 
April 1, 2020, noon 27.4 ppb (25) 12.2 ppb (11) N/A 15.0 ppb (14) N/A N/A 9.0 ppb (7) N/A N/A 2.9 μg/m3 (12) 25.0
 
April 1, 2020, 11 a.m. 6.5 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 25.0 ppb (19) N/A N/A 2.3 μg/m3 (10) 19.0
 
April 1, 2020, 10 a.m. 4.7 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (20) N/A N/A 1.9 μg/m3 (8) 20.0
 
April 1, 2020, 9 a.m. 4.9 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 28.0 ppb (22) N/A N/A 2.0 μg/m3 (8) 22.0