ID: 2954

AQSQID: 490210005

Site Name: Enoch

Added: April 21, 2020, 6:24 p.m.

Updated: March 7, 2021, 10:32 p.m.

Location: Cedar City (3860 N), UT

Reporting: True, Located: True

Current AQI: 46.0

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. 28, 2021, 9 p.m. 1.8 ppb (2) 1.2 ppb (2) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) N/A N/A 2.1 μg/m3 (9) 39.0
 
Feb. 28, 2021, 8 p.m. 1.0 ppb (1) 0.5 ppb (1) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) N/A N/A 2.1 μg/m3 (9) 39.0
 
Feb. 28, 2021, 7 p.m. 1.7 ppb (2) 0.9 ppb (1) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (38) N/A N/A 2.4 μg/m3 (10) 38.0
 
Feb. 28, 2021, 6 p.m. 1.6 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (38) N/A N/A 2.5 μg/m3 (11) 38.0
 
Feb. 28, 2021, 5 p.m. 2.8 ppb (3) 1.6 ppb (2) N/A 1.0 ppb (1) N/A N/A 39.0 ppb (37) N/A N/A 2.8 μg/m3 (12) 37.0
 
Feb. 28, 2021, 4 p.m. 2.6 ppb (3) 1.8 ppb (2) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (36) N/A N/A 3.0 μg/m3 (13) 36.0
 
Feb. 28, 2021, 3 p.m. 3.7 ppb (4) 1.7 ppb (2) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (34) N/A N/A 3.0 μg/m3 (13) 34.0
 
Feb. 28, 2021, 2 p.m. 2.6 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 29.0 ppb (27) N/A N/A 3.4 μg/m3 (15) 27.0
 
Feb. 28, 2021, 1 p.m. 6.1 ppb (6) 2.2 ppb (3) N/A 4.0 ppb (4) N/A N/A 25.0 ppb (24) N/A N/A 2.8 μg/m3 (12) 24.0
 
Feb. 28, 2021, noon 3.6 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 27.0 ppb (25) N/A N/A 2.4 μg/m3 (10) 25.0
 
Feb. 28, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 3.2 μg/m3 (14) 21.0
 
Feb. 28, 2021, 10 a.m. 5.4 ppb (6) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 20.0 ppb (19) N/A N/A 4.1 μg/m3 (18) 19.0
 
Feb. 28, 2021, 9 a.m. 6.4 ppb (7) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 19.0 ppb (18) N/A N/A 3.6 μg/m3 (16) 18.0
 
Feb. 28, 2021, 8 a.m. 9.7 ppb (10) 1.6 ppb (2) N/A 8.0 ppb (8) N/A N/A 17.0 ppb (16) N/A N/A 5.1 μg/m3 (22) 22.0
 
Feb. 28, 2021, 7 a.m. 13.8 ppb (14) 1.4 ppb (2) N/A 12.0 ppb (12) N/A N/A 15.0 ppb (14) N/A N/A 2.3 μg/m3 (10) 14.0
 
Feb. 28, 2021, 6 a.m. 9.8 ppb (10) 1.7 ppb (2) N/A 8.0 ppb (8) N/A N/A 18.0 ppb (17) N/A N/A 2.2 μg/m3 (10) 17.0
 
Feb. 28, 2021, 5 a.m. 4.3 ppb (5) 1.1 ppb (2) N/A 3.0 ppb (3) N/A N/A 26.0 ppb (25) N/A N/A 2.9 μg/m3 (13) 25.0
 
Feb. 28, 2021, 4 a.m. 3.2 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 28.0 ppb (26) N/A N/A 4.2 μg/m3 (18) 26.0
 
Feb. 28, 2021, 3 a.m. 7.9 ppb (8) 2.4 ppb (3) N/A 6.0 ppb (6) N/A N/A 32.0 ppb (30) N/A N/A 2.2 μg/m3 (10) 30.0
 
Feb. 28, 2021, 2 a.m. 9.8 ppb (10) 3.0 ppb (3) N/A 7.0 ppb (7) N/A N/A 30.0 ppb (28) N/A N/A 3.9 μg/m3 (17) 28.0
 
Feb. 28, 2021, 1 a.m. 7.8 ppb (8) 3.5 ppb (4) N/A 4.0 ppb (4) N/A N/A 35.0 ppb (33) N/A N/A 2.1 μg/m3 (9) 33.0
 
Feb. 28, 2021, midnight 3.3 ppb (4) 1.9 ppb (2) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (37) N/A N/A 1.0 μg/m3 (5) 37.0
 
Feb. 27, 2021, 11 p.m. 0.5 ppb (1) 0.2 ppb (1) N/A 0.0 ppb (0) N/A N/A 42.0 ppb (39) N/A N/A 0.6 μg/m3 (3) 39.0
 
Feb. 27, 2021, 10 p.m. 0.5 ppb (1) 0.3 ppb (1) N/A 0.0 ppb (0) N/A N/A 42.0 ppb (39) N/A N/A 0.6 μg/m3 (3) 39.0
 
Feb. 27, 2021, 9 p.m. 0.6 ppb (1) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (41) N/A N/A 0.6 μg/m3 (3) 41.0
 
Feb. 27, 2021, 8 p.m. 0.6 ppb (1) 0.3 ppb (1) N/A 0.0 ppb (0) N/A N/A 44.0 ppb (41) N/A N/A 0.4 μg/m3 (2) 41.0
 
Feb. 27, 2021, 7 p.m. 1.5 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (42) N/A N/A 0.5 μg/m3 (3) 42.0
 
Feb. 27, 2021, 6 p.m. 3.1 ppb (3) 1.8 ppb (2) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (40) N/A N/A 1.3 μg/m3 (6) 40.0
 
Feb. 27, 2021, 5 p.m. 3.4 ppb (4) 1.8 ppb (2) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (39) N/A N/A 1.8 μg/m3 (8) 39.0
 
Feb. 27, 2021, 4 p.m. 4.9 ppb (5) 2.6 ppb (3) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (35) N/A N/A 3.4 μg/m3 (15) 35.0
 
Feb. 27, 2021, 3 p.m. 15.2 ppb (15) 7.7 ppb (8) N/A 8.0 ppb (8) N/A N/A 29.0 ppb (27) N/A N/A 4.0 μg/m3 (17) 27.0
 
Feb. 27, 2021, 2 p.m. 34.9 ppb (33) 16.6 ppb (16) N/A 18.0 ppb (17) N/A N/A 12.0 ppb (12) N/A N/A 3.6 μg/m3 (16) 33.0
 
Feb. 27, 2021, 1 p.m. 21.8 ppb (21) 8.9 ppb (9) N/A 13.0 ppb (13) N/A N/A 17.0 ppb (16) N/A N/A 1.9 μg/m3 (8) 21.0
 
Feb. 27, 2021, noon 2.2 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (28) N/A N/A 0.8 μg/m3 (4) 28.0
 
Feb. 27, 2021, 11 a.m. 2.3 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 0.9 μg/m3 (4) 4.0
 
Feb. 27, 2021, 10 a.m. 1.9 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (31) N/A N/A 1.5 μg/m3 (7) 31.0
 
Feb. 27, 2021, 9 a.m. 1.6 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (35) N/A N/A 1.8 μg/m3 (8) 35.0
 
Feb. 27, 2021, 8 a.m. 1.2 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (35) N/A N/A 6.6 μg/m3 (28) 35.0
 
Feb. 27, 2021, 7 a.m. 1.2 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A 35.0 ppb (33) N/A N/A 4.5 μg/m3 (19) 33.0
 
Feb. 27, 2021, 6 a.m. 1.6 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (36) N/A N/A 0.7 μg/m3 (3) 36.0
 
Feb. 27, 2021, 5 a.m. 1.6 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (38) N/A N/A 0.8 μg/m3 (4) 38.0
 
Feb. 27, 2021, 4 a.m. 1.7 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (38) N/A N/A 1.3 μg/m3 (6) 38.0
 
Feb. 27, 2021, 3 a.m. 2.4 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (37) N/A N/A 0.7 μg/m3 (3) 37.0
 
Feb. 27, 2021, 2 a.m. 3.0 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 42.0 ppb (39) N/A N/A 0.6 μg/m3 (3) 39.0
 
Feb. 27, 2021, 1 a.m. 2.4 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (40) N/A N/A 0.7 μg/m3 (3) 40.0
 
Feb. 27, 2021, midnight 2.0 ppb (2) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (41) N/A N/A 0.9 μg/m3 (4) 41.0
 
Feb. 26, 2021, 11 p.m. 3.1 ppb (3) 1.2 ppb (2) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (41) N/A N/A 0.8 μg/m3 (4) 41.0
 
Feb. 26, 2021, 10 p.m. 4.1 ppb (4) 2.2 ppb (3) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (42) N/A N/A 0.9 μg/m3 (4) 42.0
 
Feb. 26, 2021, 9 p.m. 4.4 ppb (5) 2.6 ppb (3) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (41) N/A N/A 0.7 μg/m3 (3) 41.0
 
Feb. 26, 2021, 8 p.m. 3.1 ppb (3) 1.7 ppb (2) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (41) N/A N/A 0.5 μg/m3 (3) 41.0
 
Feb. 26, 2021, 7 p.m. 6.8 ppb (7) 3.5 ppb (4) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (41) N/A N/A 0.4 μg/m3 (2) 41.0
 
Feb. 26, 2021, 6 p.m. 2.1 ppb (2) 0.9 ppb (1) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (43) N/A N/A 0.2 μg/m3 (1) 43.0
 
Feb. 26, 2021, 5 p.m. 3.4 ppb (4) 1.3 ppb (2) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (42) N/A N/A 0.4 μg/m3 (2) 42.0
 
Feb. 26, 2021, 4 p.m. 26.8 ppb (26) 14.7 ppb (14) N/A 12.0 ppb (12) N/A N/A 25.0 ppb (24) N/A N/A 3.1 μg/m3 (13) 26.0
 
Feb. 26, 2021, 3 p.m. 63.9 ppb (62) 39.6 ppb (38) N/A 25.0 ppb (24) N/A N/A 12.0 ppb (12) N/A N/A 4.3 μg/m3 (18) 62.0
 
Feb. 26, 2021, 2 p.m. 73.1 ppb (72) 45.6 ppb (44) N/A 28.0 ppb (27) N/A N/A 3.0 ppb (3) N/A N/A 3.3 μg/m3 (14) 72.0
 
Feb. 26, 2021, 1 p.m. 65.5 ppb (64) 44.5 ppb (42) N/A 21.0 ppb (20) N/A N/A 6.0 ppb (6) N/A N/A 19.4 μg/m3 (67) 67.0
 
Feb. 26, 2021, noon 19.6 ppb (19) 5.1 ppb (5) N/A 15.0 ppb (15) N/A N/A 9.0 ppb (9) N/A N/A 3.9 μg/m3 (17) 19.0
 
Feb. 26, 2021, 11 a.m. 15.2 ppb (15) 3.0 ppb (3) N/A 12.0 ppb (12) N/A N/A 13.0 ppb (13) N/A N/A 7.5 μg/m3 (32) 32.0
 
Feb. 26, 2021, 10 a.m. 17.6 ppb (17) 1.9 ppb (2) N/A 16.0 ppb (16) N/A N/A 10.0 ppb (10) N/A N/A 6.3 μg/m3 (27) 27.0
 
Feb. 26, 2021, 9 a.m. 14.7 ppb (14) 1.9 ppb (2) N/A 13.0 ppb (13) N/A N/A 9.0 ppb (9) N/A N/A 6.1 μg/m3 (26) 26.0
 
Feb. 26, 2021, 8 a.m. 16.0 ppb (16) 1.9 ppb (2) N/A 14.0 ppb (14) N/A N/A 12.0 ppb (12) N/A N/A 5.7 μg/m3 (24) 24.0
 
Feb. 26, 2021, 7 a.m. 21.1 ppb (20) 2.0 ppb (2) N/A 19.0 ppb (18) N/A N/A 8.0 ppb (8) N/A N/A 7.0 μg/m3 (30) 30.0
 
Feb. 26, 2021, 6 a.m. 25.7 ppb (25) 2.7 ppb (3) N/A 23.0 ppb (22) N/A N/A 9.0 ppb (9) N/A N/A 6.1 μg/m3 (26) 26.0
 
Feb. 26, 2021, 5 a.m. 28.3 ppb (27) 8.1 ppb (8) N/A 20.0 ppb (19) N/A N/A 11.0 ppb (11) N/A N/A 5.8 μg/m3 (25) 27.0
 
Feb. 26, 2021, 4 a.m. 19.8 ppb (19) 3.5 ppb (4) N/A 16.0 ppb (16) N/A N/A 15.0 ppb (14) N/A N/A 7.3 μg/m3 (31) 31.0
 
Feb. 26, 2021, 3 a.m. 26.1 ppb (25) 5.6 ppb (6) N/A 21.0 ppb (20) N/A N/A 15.0 ppb (14) N/A N/A 8.1 μg/m3 (34) 34.0
 
Feb. 26, 2021, 2 a.m. 11.2 ppb (11) 2.3 ppb (3) N/A 9.0 ppb (9) N/A N/A 30.0 ppb (28) N/A N/A 5.1 μg/m3 (22) 28.0
 
Feb. 26, 2021, 1 a.m. 11.4 ppb (11) 4.2 ppb (4) N/A 7.0 ppb (7) N/A N/A 33.0 ppb (31) N/A N/A 4.7 μg/m3 (20) 31.0
 
Feb. 26, 2021, midnight 1.2 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (40) N/A N/A 1.7 μg/m3 (8) 40.0
 
Feb. 25, 2021, 11 p.m. 2.0 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (42) N/A N/A 2.0 μg/m3 (9) 42.0
 
Feb. 25, 2021, 10 p.m. 2.9 ppb (3) 1.3 ppb (2) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (42) N/A N/A 1.8 μg/m3 (8) 42.0
 
Feb. 25, 2021, 9 p.m. 9.9 ppb (10) 7.7 ppb (8) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (40) N/A N/A 2.3 μg/m3 (10) 40.0
 
Feb. 25, 2021, 8 p.m. 2.3 ppb (3) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (40) N/A N/A 2.3 μg/m3 (10) 40.0
 
Feb. 25, 2021, 7 p.m. 3.6 ppb (4) 1.7 ppb (2) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (38) N/A N/A 2.5 μg/m3 (11) 38.0
 
Feb. 25, 2021, 6 p.m. 6.0 ppb (6) 3.8 ppb (4) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (37) N/A N/A 3.0 μg/m3 (13) 37.0
 
Feb. 25, 2021, 5 p.m. 4.7 ppb (5) 2.7 ppb (3) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (35) N/A N/A 3.1 μg/m3 (13) 35.0
 
Feb. 25, 2021, 4 p.m. 10.5 ppb (10) 5.7 ppb (6) N/A 5.0 ppb (5) N/A N/A 31.0 ppb (29) N/A N/A 4.3 μg/m3 (18) 29.0
 
Feb. 25, 2021, 3 p.m. 18.4 ppb (18) 10.2 ppb (10) N/A 8.0 ppb (8) N/A N/A 24.0 ppb (23) N/A N/A 5.6 μg/m3 (24) 24.0
 
Feb. 25, 2021, 2 p.m. 23.2 ppb (22) 11.3 ppb (11) N/A 12.0 ppb (12) N/A N/A 20.0 ppb (19) N/A N/A 5.8 μg/m3 (25) 25.0
 
Feb. 25, 2021, 1 p.m. 7.1 ppb (7) 3.0 ppb (3) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (27) N/A N/A 4.7 μg/m3 (20) 27.0
 
Feb. 25, 2021, noon 5.2 ppb (5) 1.9 ppb (2) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (28) N/A N/A 2.6 μg/m3 (11) 28.0
 
Feb. 25, 2021, 11 a.m. 2.6 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (31) N/A N/A 1.9 μg/m3 (8) 31.0
 
Feb. 25, 2021, 10 a.m. 2.0 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (33) N/A N/A 2.1 μg/m3 (9) 33.0
 
Feb. 25, 2021, 9 a.m. 1.8 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (32) N/A N/A 2.5 μg/m3 (11) 32.0
 
Feb. 25, 2021, 8 a.m. 1.6 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 34.0 ppb (32) N/A N/A 2.5 μg/m3 (11) 32.0
 
Feb. 25, 2021, 7 a.m. 1.6 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (32) N/A N/A 2.4 μg/m3 (10) 32.0
 
Feb. 25, 2021, 6 a.m. 2.1 ppb (2) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (33) N/A N/A 2.3 μg/m3 (10) 33.0
 
Feb. 25, 2021, 5 a.m. 2.7 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (35) N/A N/A 3.9 μg/m3 (17) 35.0
 
Feb. 25, 2021, 4 a.m. 1.8 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (35) N/A N/A 2.0 μg/m3 (9) 35.0
 
Feb. 25, 2021, 3 a.m. 1.7 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (35) N/A N/A 2.3 μg/m3 (10) 35.0
 
Feb. 25, 2021, 2 a.m. 2.2 ppb (3) 1.1 ppb (2) N/A 1.0 ppb (1) N/A N/A 39.0 ppb (37) N/A N/A 3.0 μg/m3 (13) 37.0
 
Feb. 25, 2021, 1 a.m. 3.4 ppb (4) 1.8 ppb (2) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (36) N/A N/A 3.1 μg/m3 (13) 36.0
 
Feb. 25, 2021, midnight 4.7 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (34) N/A N/A 2.5 μg/m3 (11) 34.0
 
Feb. 24, 2021, 11 p.m. 4.9 ppb (5) 2.4 ppb (3) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (33) N/A N/A 2.1 μg/m3 (9) 33.0
 
Feb. 24, 2021, 10 p.m. 4.9 ppb (5) 2.8 ppb (3) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (35) N/A N/A 1.7 μg/m3 (8) 35.0
 
Feb. 24, 2021, 9 p.m. 10.9 ppb (11) 6.2 ppb (6) N/A 5.0 ppb (5) N/A N/A 38.0 ppb (36) N/A N/A 1.8 μg/m3 (8) 36.0
 
Feb. 24, 2021, 8 p.m. 0.9 ppb (1) 0.5 ppb (1) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (40) N/A N/A 1.1 μg/m3 (5) 40.0
 
Feb. 24, 2021, 7 p.m. 4.2 ppb (4) 2.1 ppb (2) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (40) N/A N/A 1.1 μg/m3 (5) 40.0
 
Feb. 24, 2021, 6 p.m. 2.9 ppb (3) 1.1 ppb (2) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (43) N/A N/A 1.6 μg/m3 (7) 43.0
 
Feb. 24, 2021, 5 p.m. 10.3 ppb (10) 3.9 ppb (4) N/A 7.0 ppb (7) N/A N/A 39.0 ppb (37) N/A N/A 3.3 μg/m3 (14) 37.0
 
Feb. 24, 2021, 4 p.m. 23.3 ppb (22) 10.6 ppb (10) N/A 13.0 ppb (13) N/A N/A 26.0 ppb (25) N/A N/A 4.3 μg/m3 (18) 25.0
 
Feb. 24, 2021, 3 p.m. 47.6 ppb (45) 27.6 ppb (27) N/A 20.0 ppb (19) N/A N/A 14.0 ppb (13) N/A N/A 4.9 μg/m3 (21) 45.0
 
Feb. 24, 2021, 2 p.m. 79.6 ppb (79) 51.9 ppb (49) N/A 28.0 ppb (27) N/A N/A 2.0 ppb (2) N/A N/A 6.2 μg/m3 (26) 79.0
 
Feb. 24, 2021, 1 p.m. 55.1 ppb (53) 33.8 ppb (32) N/A 22.0 ppb (21) N/A N/A 12.0 ppb (12) N/A N/A 4.8 μg/m3 (20) 53.0
 
Feb. 24, 2021, noon 20.1 ppb (19) 6.2 ppb (6) N/A 14.0 ppb (14) N/A N/A 12.0 ppb (12) N/A N/A 3.8 μg/m3 (16) 19.0
 
Feb. 24, 2021, 11 a.m. 13.6 ppb (13) 2.7 ppb (3) N/A 11.0 ppb (11) N/A N/A 15.0 ppb (14) N/A N/A 4.0 μg/m3 (17) 17.0
 
Feb. 24, 2021, 10 a.m. 14.5 ppb (14) 2.4 ppb (3) N/A 12.0 ppb (12) N/A N/A 16.0 ppb (15) N/A N/A 3.9 μg/m3 (17) 17.0
 
Feb. 24, 2021, 9 a.m. 12.4 ppb (12) 1.3 ppb (2) N/A 11.0 ppb (11) N/A N/A 13.0 ppb (13) N/A N/A 7.5 μg/m3 (32) 32.0
 
Feb. 24, 2021, 8 a.m. 10.8 ppb (11) 0.8 ppb (1) N/A 10.0 ppb (10) N/A N/A 21.0 ppb (20) N/A N/A 2.0 μg/m3 (9) 20.0
 
Feb. 24, 2021, 7 a.m. 13.6 ppb (13) 1.2 ppb (2) N/A 12.0 ppb (12) N/A N/A 16.0 ppb (15) N/A N/A 2.6 μg/m3 (11) 15.0
 
Feb. 24, 2021, 6 a.m. 27.2 ppb (26) 8.8 ppb (9) N/A 19.0 ppb (18) N/A N/A 8.0 ppb (8) N/A N/A 4.8 μg/m3 (20) 26.0
 
Feb. 24, 2021, 5 a.m. 12.2 ppb (12) 4.1 ppb (4) N/A 8.0 ppb (8) N/A N/A 22.0 ppb (21) N/A N/A 6.7 μg/m3 (28) 28.0
 
Feb. 24, 2021, 4 a.m. 21.6 ppb (21) 3.9 ppb (4) N/A 18.0 ppb (17) N/A N/A 16.0 ppb (15) N/A N/A 10.5 μg/m3 (44) 44.0
 
Feb. 24, 2021, 3 a.m. 39.5 ppb (38) 12.8 ppb (13) N/A 27.0 ppb (26) N/A N/A 10.0 ppb (10) N/A N/A 8.9 μg/m3 (38) 38.0
 
Feb. 24, 2021, 2 a.m. 21.0 ppb (20) 7.7 ppb (8) N/A 13.0 ppb (13) N/A N/A 27.0 ppb (25) N/A N/A 2.4 μg/m3 (10) 25.0
 
Feb. 24, 2021, 1 a.m. 8.9 ppb (9) 4.0 ppb (4) N/A 5.0 ppb (5) N/A N/A 34.0 ppb (32) N/A N/A 2.1 μg/m3 (9) 32.0
 
Feb. 24, 2021, midnight 6.4 ppb (7) 2.5 ppb (3) N/A 4.0 ppb (4) N/A N/A 35.0 ppb (33) N/A N/A 1.5 μg/m3 (7) 33.0
 
Feb. 23, 2021, 11 p.m. 3.5 ppb (4) 1.7 ppb (2) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (37) N/A N/A 1.2 μg/m3 (5) 37.0
 
Feb. 23, 2021, 10 p.m. 4.7 ppb (5) 2.1 ppb (2) N/A 3.0 ppb (3) N/A N/A 38.0 ppb (36) N/A N/A 1.4 μg/m3 (6) 36.0
 
Feb. 23, 2021, 9 p.m. 5.1 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (38) N/A N/A 0.9 μg/m3 (4) 38.0
 
Feb. 23, 2021, 8 p.m. 3.7 ppb (4) 1.9 ppb (2) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (38) N/A N/A 1.1 μg/m3 (5) 38.0
 
Feb. 23, 2021, 7 p.m. 4.1 ppb (4) 1.9 ppb (2) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (36) N/A N/A 1.5 μg/m3 (7) 36.0
 
Feb. 23, 2021, 6 p.m. 6.4 ppb (7) 2.9 ppb (3) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (34) N/A N/A 1.6 μg/m3 (7) 34.0
 
Feb. 23, 2021, 5 p.m. 3.9 ppb (4) 1.6 ppb (2) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (33) N/A N/A 1.5 μg/m3 (7) 33.0
 
Feb. 23, 2021, 4 p.m. 14.3 ppb (14) 8.0 ppb (8) N/A 6.0 ppb (6) N/A N/A 23.0 ppb (22) N/A N/A 2.7 μg/m3 (12) 22.0
 
Feb. 23, 2021, 3 p.m. 47.4 ppb (45) 31.8 ppb (30) N/A 16.0 ppb (16) N/A N/A 10.0 ppb (10) N/A N/A 5.7 μg/m3 (24) 45.0
 
Feb. 23, 2021, 2 p.m. 69.1 ppb (68) 48.7 ppb (46) N/A 21.0 ppb (20) N/A N/A 2.0 ppb (2) N/A N/A 7.1 μg/m3 (30) 68.0
 
Feb. 23, 2021, 1 p.m. 46.8 ppb (45) 22.7 ppb (22) N/A 24.0 ppb (23) N/A N/A 3.0 ppb (3) N/A N/A 4.9 μg/m3 (21) 45.0
 
Feb. 23, 2021, noon 20.9 ppb (20) 8.4 ppb (8) N/A 13.0 ppb (13) N/A N/A 7.0 ppb (7) N/A N/A 3.2 μg/m3 (14) 20.0
 
Feb. 23, 2021, 11 a.m. 19.5 ppb (19) 4.6 ppb (5) N/A 15.0 ppb (15) N/A N/A 9.0 ppb (9) N/A N/A 3.4 μg/m3 (15) 19.0
 
Feb. 23, 2021, 10 a.m. 13.8 ppb (14) 3.0 ppb (3) N/A 11.0 ppb (11) N/A N/A 11.0 ppb (11) N/A N/A 3.2 μg/m3 (14) 14.0
 
Feb. 23, 2021, 9 a.m. 11.9 ppb (12) 1.2 ppb (2) N/A 11.0 ppb (11) N/A N/A 13.0 ppb (13) N/A N/A 2.6 μg/m3 (11) 13.0
 
Feb. 23, 2021, 8 a.m. 13.6 ppb (13) 1.0 ppb (1) N/A 13.0 ppb (13) N/A N/A 9.0 ppb (9) N/A N/A 2.6 μg/m3 (11) 13.0
 
Feb. 23, 2021, 7 a.m. 17.1 ppb (17) 2.2 ppb (3) N/A 15.0 ppb (15) N/A N/A 9.0 ppb (9) N/A N/A 2.4 μg/m3 (10) 17.0
 
Feb. 23, 2021, 6 a.m. 17.3 ppb (17) 2.1 ppb (2) N/A 15.0 ppb (15) N/A N/A 10.0 ppb (10) N/A N/A 4.7 μg/m3 (20) 20.0
 
Feb. 23, 2021, 5 a.m. 21.0 ppb (20) 2.8 ppb (3) N/A 18.0 ppb (17) N/A N/A 9.0 ppb (9) N/A N/A 6.3 μg/m3 (27) 27.0
 
Feb. 23, 2021, 4 a.m. 16.8 ppb (16) 3.8 ppb (4) N/A 13.0 ppb (13) N/A N/A 15.0 ppb (14) N/A N/A 7.3 μg/m3 (31) 31.0
 
Feb. 23, 2021, 3 a.m. 16.5 ppb (16) 1.4 ppb (2) N/A 15.0 ppb (15) N/A N/A 17.0 ppb (16) N/A N/A 4.1 μg/m3 (18) 18.0
 
Feb. 23, 2021, 2 a.m. 19.0 ppb (18) 5.6 ppb (6) N/A 14.0 ppb (14) N/A N/A 20.0 ppb (19) N/A N/A 2.4 μg/m3 (10) 19.0
 
Feb. 23, 2021, 1 a.m. 2.6 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (34) N/A N/A 1.2 μg/m3 (5) 34.0
 
Feb. 23, 2021, midnight 2.1 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (38) N/A N/A 1.1 μg/m3 (5) 38.0
 
Feb. 22, 2021, 11 p.m. 2.1 ppb (2) 1.1 ppb (2) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (38) N/A N/A 0.6 μg/m3 (3) 38.0
 
Feb. 22, 2021, 10 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (38) N/A N/A 0.4 μg/m3 (2) 38.0
 
Feb. 22, 2021, 9 p.m. 3.3 ppb (4) 2.3 ppb (3) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (38) N/A N/A 0.4 μg/m3 (2) 38.0
 
Feb. 22, 2021, 8 p.m. 4.0 ppb (4) 2.7 ppb (3) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (38) N/A N/A 0.3 μg/m3 (2) 38.0
 
Feb. 22, 2021, 7 p.m. 2.6 ppb (3) 1.3 ppb (2) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (38) N/A N/A 0.4 μg/m3 (2) 38.0
 
Feb. 22, 2021, 6 p.m. 3.1 ppb (3) 1.6 ppb (2) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (35) N/A N/A 0.6 μg/m3 (3) 35.0
 
Feb. 22, 2021, 5 p.m. 4.4 ppb (5) 3.1 ppb (3) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (34) N/A N/A 0.8 μg/m3 (4) 34.0
 
Feb. 22, 2021, 4 p.m. 7.5 ppb (8) 4.0 ppb (4) N/A 4.0 ppb (4) N/A N/A 33.0 ppb (31) N/A N/A 1.1 μg/m3 (5) 31.0
 
Feb. 22, 2021, 3 p.m. 20.2 ppb (20) 10.0 ppb (10) N/A 10.0 ppb (10) N/A N/A 21.0 ppb (20) N/A N/A 2.7 μg/m3 (12) 20.0
 
Feb. 22, 2021, 2 p.m. 28.2 ppb (27) 13.2 ppb (13) N/A 15.0 ppb (15) N/A N/A 16.0 ppb (15) N/A N/A 3.5 μg/m3 (15) 27.0
 
Feb. 22, 2021, 1 p.m. 67.1 ppb (65) 58.1 ppb (56) N/A 10.0 ppb (10) N/A N/A 22.0 ppb (21) N/A N/A 14.6 μg/m3 (57) 65.0
 
Feb. 22, 2021, noon 11.5 ppb (11) 2.6 ppb (3) N/A 9.0 ppb (9) N/A N/A 20.0 ppb (19) N/A N/A 3.1 μg/m3 (13) 19.0
 
Feb. 22, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A N/A 2.7 μg/m3 (12) 12.0
 
Feb. 22, 2021, 10 a.m. 3.0 ppb (3) 0.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 29.0 ppb (27) N/A N/A 1.8 μg/m3 (8) 27.0
 
Feb. 22, 2021, 9 a.m. 3.6 ppb (4) 0.3 ppb (1) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (25) N/A N/A 2.4 μg/m3 (10) 25.0
 
Feb. 22, 2021, 8 a.m. 7.4 ppb (7) 0.7 ppb (1) N/A 7.0 ppb (7) N/A N/A 21.0 ppb (20) N/A N/A 3.2 μg/m3 (14) 20.0
 
Feb. 22, 2021, 7 a.m. 2.3 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 27.0 ppb (25) N/A N/A 4.0 μg/m3 (17) 25.0
 
Feb. 22, 2021, 6 a.m. 2.6 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 29.0 ppb (27) N/A N/A 3.1 μg/m3 (13) 27.0
 
Feb. 22, 2021, 5 a.m. 3.8 ppb (4) 0.3 ppb (1) N/A 4.0 ppb (4) N/A N/A 31.0 ppb (29) N/A N/A 2.4 μg/m3 (10) 29.0
 
Feb. 22, 2021, 4 a.m. 6.0 ppb (6) 1.1 ppb (2) N/A 5.0 ppb (5) N/A N/A 30.0 ppb (28) N/A N/A 1.8 μg/m3 (8) 28.0
 
Feb. 22, 2021, 3 a.m. 6.8 ppb (7) 1.5 ppb (2) N/A 5.0 ppb (5) N/A N/A 33.0 ppb (31) N/A N/A 1.6 μg/m3 (7) 31.0
 
Feb. 22, 2021, 2 a.m. 7.4 ppb (7) 2.3 ppb (3) N/A 5.0 ppb (5) N/A N/A 36.0 ppb (34) N/A N/A 2.4 μg/m3 (10) 34.0
 
Feb. 22, 2021, 1 a.m. 6.4 ppb (7) 2.2 ppb (3) N/A 4.0 ppb (4) N/A N/A 38.0 ppb (36) N/A N/A 1.5 μg/m3 (7) 36.0
 
Feb. 22, 2021, midnight 22.2 ppb (21) 12.0 ppb (12) N/A 13.0 ppb (13) N/A N/A 44.0 ppb (41) N/A N/A 1.6 μg/m3 (7) 41.0
 
Feb. 21, 2021, 11 p.m. 5.3 ppb (5) 3.3 ppb (4) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (40) N/A N/A 0.6 μg/m3 (3) 40.0
 
Feb. 21, 2021, 10 p.m. 3.5 ppb (4) 2.3 ppb (3) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (38) N/A N/A 0.4 μg/m3 (2) 38.0