ID: 1064

AQSQID: 490571003

Site Name: Harrisville

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

Updated: Oct. 16, 2021, 2:04 p.m.

Location: Ogden (N Ogden Ranchettes), UT

Reporting: True, Located: True

Current AQI: 25.0

Ogden (N Ogden Ranchettes) UT, US: 41.302799, -111.988297

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Oct. 16, 2021, noon 26.5 ppb (25) 3.7 ppb (4) N/A 23.0 ppb (22) N/A N/A -3.0 ppb (0) N/A N/A 4.1 μg/m3 (18) 25.0
 
Oct. 16, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 3.1 μg/m3 (13) 13.0
 
Oct. 16, 2021, 10 a.m. 17.9 ppb (17) 1.0 ppb (1) N/A 17.0 ppb (17) N/A N/A 0.0 ppb (0) N/A N/A 3.4 μg/m3 (15) 17.0
 
Oct. 16, 2021, 9 a.m. 13.7 ppb (13) 0.6 ppb (1) N/A 13.0 ppb (13) N/A N/A 5.0 ppb (5) N/A N/A 3.2 μg/m3 (14) 14.0
 
Oct. 16, 2021, 8 a.m. 16.4 ppb (16) 1.0 ppb (1) N/A 15.0 ppb (15) N/A N/A 1.0 ppb (1) N/A N/A 2.1 μg/m3 (9) 16.0
 
Oct. 16, 2021, 7 a.m. 12.6 ppb (12) 0.4 ppb (1) N/A 12.0 ppb (12) N/A N/A 7.0 ppb (7) N/A N/A 2.1 μg/m3 (9) 12.0
 
Oct. 16, 2021, 6 a.m. 8.1 ppb (8) 0.3 ppb (1) N/A 8.0 ppb (8) N/A N/A 13.0 ppb (13) N/A N/A 2.0 μg/m3 (9) 13.0
 
Oct. 16, 2021, 5 a.m. 10.2 ppb (10) 0.2 ppb (1) N/A 10.0 ppb (10) N/A N/A 12.0 ppb (12) N/A N/A 2.2 μg/m3 (10) 12.0
 
Oct. 16, 2021, 4 a.m. 7.6 ppb (8) 0.2 ppb (1) N/A 7.0 ppb (7) N/A N/A 20.0 ppb (19) N/A N/A 2.4 μg/m3 (10) 19.0
 
Oct. 16, 2021, 3 a.m. 5.9 ppb (6) 0.2 ppb (1) N/A 6.0 ppb (6) N/A N/A 24.0 ppb (23) N/A N/A 1.7 μg/m3 (8) 23.0
 
Oct. 16, 2021, 2 a.m. 8.8 ppb (9) 0.2 ppb (1) N/A 9.0 ppb (9) N/A N/A 21.0 ppb (20) N/A N/A 3.2 μg/m3 (14) 20.0
 
Oct. 16, 2021, 1 a.m. 11.7 ppb (12) 0.3 ppb (1) N/A 12.0 ppb (12) N/A N/A 18.0 ppb (17) N/A N/A 4.3 μg/m3 (18) 18.0
 
Oct. 16, 2021, midnight 3.2 ppb (4) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (30) N/A N/A 3.3 μg/m3 (14) 30.0
 
Oct. 15, 2021, 11 p.m. 2.6 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (32) N/A N/A 4.6 μg/m3 (20) 32.0
 
Oct. 15, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.6 μg/m3 (28) 28.0
 
Oct. 15, 2021, 9 p.m. 3.3 ppb (4) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (31) N/A N/A 6.6 μg/m3 (28) 31.0
 
Oct. 15, 2021, 8 p.m. 3.2 ppb (4) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (31) N/A N/A 9.2 μg/m3 (39) 39.0
 
Oct. 15, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 6.3 μg/m3 (27) 28.0
 
Oct. 15, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 5.0 μg/m3 (21) 26.0
 
Oct. 15, 2021, 5 p.m. 7.4 ppb (7) 2.8 ppb (3) N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 3.8 μg/m3 (16) 16.0
 
Oct. 15, 2021, 4 p.m. 3.9 ppb (4) 1.3 ppb (2) N/A 3.0 ppb (3) N/A N/A 28.0 ppb (26) N/A N/A 2.8 μg/m3 (12) 26.0
 
Oct. 15, 2021, 3 p.m. 109.8 ppb (103) 47.2 ppb (45) N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 3.2 μg/m3 (14) 103.0
 
Oct. 15, 2021, 2 p.m. 29.4 ppb (28) 9.3 ppb (9) N/A 20.0 ppb (19) N/A N/A 2.0 ppb (2) N/A N/A 4.2 μg/m3 (18) 28.0
 
Oct. 15, 2021, 1 p.m. 22.4 ppb (22) 2.1 ppb (2) N/A 20.0 ppb (19) N/A N/A 2.0 ppb (2) N/A N/A 3.5 μg/m3 (15) 22.0
 
Oct. 15, 2021, noon 9.3 ppb (9) 1.0 ppb (1) N/A 8.0 ppb (8) N/A N/A 16.0 ppb (15) N/A N/A 2.6 μg/m3 (11) 15.0
 
Oct. 15, 2021, 11 a.m. 7.6 ppb (8) 1.0 ppb (1) N/A 7.0 ppb (7) N/A N/A N/A N/A N/A 2.7 μg/m3 (12) 12.0
 
Oct. 15, 2021, 10 a.m. 3.8 ppb (4) 0.3 ppb (1) N/A 4.0 ppb (4) N/A N/A 22.0 ppb (21) N/A N/A 2.1 μg/m3 (9) 21.0
 
Oct. 15, 2021, 9 a.m. 5.8 ppb (6) 0.2 ppb (1) N/A 6.0 ppb (6) N/A N/A 19.0 ppb (18) N/A N/A 2.3 μg/m3 (10) 18.0
 
Oct. 15, 2021, 8 a.m. 5.4 ppb (6) 0.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 19.0 ppb (18) N/A N/A 2.6 μg/m3 (11) 18.0
 
Oct. 15, 2021, 7 a.m. 6.9 ppb (7) 0.3 ppb (1) N/A 7.0 ppb (7) N/A N/A 18.0 ppb (17) N/A N/A 2.9 μg/m3 (13) 17.0
 
Oct. 15, 2021, 6 a.m. 9.8 ppb (10) 0.4 ppb (1) N/A 10.0 ppb (10) N/A N/A 13.0 ppb (13) N/A N/A 3.3 μg/m3 (14) 14.0
 
Oct. 15, 2021, 5 a.m. 10.9 ppb (11) 0.7 ppb (1) N/A 10.0 ppb (10) N/A N/A 11.0 ppb (11) N/A N/A 2.5 μg/m3 (11) 11.0
 
Oct. 15, 2021, 4 a.m. 9.9 ppb (10) 0.3 ppb (1) N/A 10.0 ppb (10) N/A N/A 14.0 ppb (13) N/A N/A 3.2 μg/m3 (14) 14.0
 
Oct. 15, 2021, 3 a.m. 16.0 ppb (16) 0.7 ppb (1) N/A 15.0 ppb (15) N/A N/A 7.0 ppb (7) N/A N/A 4.8 μg/m3 (20) 20.0
 
Oct. 15, 2021, 2 a.m. 10.7 ppb (11) 0.4 ppb (1) N/A 10.0 ppb (10) N/A N/A 15.0 ppb (14) N/A N/A 3.2 μg/m3 (14) 14.0
 
Oct. 15, 2021, 1 a.m. 5.5 ppb (6) 0.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 23.0 ppb (22) N/A N/A 2.5 μg/m3 (11) 22.0
 
Oct. 15, 2021, midnight 2.5 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 28.0 ppb (26) N/A N/A 2.2 μg/m3 (10) 26.0
 
Oct. 14, 2021, 11 p.m. 2.1 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (28) N/A N/A 1.7 μg/m3 (8) 28.0
 
Oct. 14, 2021, 10 p.m. 1.9 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 31.0 ppb (29) N/A N/A 1.3 μg/m3 (6) 29.0
 
Oct. 14, 2021, 9 p.m. 1.9 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 31.0 ppb (29) N/A N/A 1.4 μg/m3 (6) 29.0
 
Oct. 14, 2021, 8 p.m. 1.1 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 31.0 ppb (29) N/A N/A 1.0 μg/m3 (5) 29.0
 
Oct. 14, 2021, 7 p.m. 1.5 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A 31.0 ppb (29) N/A N/A 2.1 μg/m3 (9) 29.0
 
Oct. 14, 2021, 6 p.m. 1.4 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A 32.0 ppb (30) N/A N/A 1.4 μg/m3 (6) 30.0
 
Oct. 14, 2021, 5 p.m. 2.3 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (28) N/A N/A 1.6 μg/m3 (7) 28.0
 
Oct. 14, 2021, 4 p.m. 2.8 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 26.0 ppb (25) N/A N/A 2.5 μg/m3 (11) 25.0
 
Oct. 14, 2021, 3 p.m. 10.6 ppb (10) 1.4 ppb (2) N/A 9.0 ppb (9) N/A N/A 18.0 ppb (17) N/A N/A 2.8 μg/m3 (12) 17.0
 
Oct. 14, 2021, 2 p.m. 10.5 ppb (10) 0.7 ppb (1) N/A 10.0 ppb (10) N/A N/A 16.0 ppb (15) N/A N/A 2.6 μg/m3 (11) 15.0
 
Oct. 14, 2021, 1 p.m. 7.2 ppb (7) 0.4 ppb (1) N/A 7.0 ppb (7) N/A N/A 19.0 ppb (18) N/A N/A 2.4 μg/m3 (10) 18.0
 
Oct. 14, 2021, noon 6.2 ppb (6) 0.3 ppb (1) N/A 6.0 ppb (6) N/A N/A 19.0 ppb (18) N/A N/A 2.5 μg/m3 (11) 18.0
 
Oct. 14, 2021, 11 a.m. 8.3 ppb (8) 0.5 ppb (1) N/A 8.0 ppb (8) N/A N/A 15.0 ppb (14) N/A N/A 3.7 μg/m3 (16) 16.0
 
Oct. 14, 2021, 10 a.m. 7.9 ppb (8) 0.2 ppb (1) N/A 8.0 ppb (8) N/A N/A 14.0 ppb (13) N/A N/A 4.7 μg/m3 (20) 20.0
 
Oct. 14, 2021, 9 a.m. 4.6 ppb (5) 0.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 20.0 ppb (19) N/A N/A 4.2 μg/m3 (18) 19.0
 
Oct. 14, 2021, 8 a.m. 7.6 ppb (8) 0.4 ppb (1) N/A 7.0 ppb (7) N/A N/A 16.0 ppb (15) N/A N/A 4.7 μg/m3 (20) 20.0
 
Oct. 14, 2021, 7 a.m. 6.7 ppb (7) 0.4 ppb (1) N/A 6.0 ppb (6) N/A N/A 18.0 ppb (17) N/A N/A 3.7 μg/m3 (16) 17.0
 
Oct. 14, 2021, 6 a.m. 6.7 ppb (7) 0.1 ppb (1) N/A 7.0 ppb (7) N/A N/A 17.0 ppb (16) N/A N/A 1.8 μg/m3 (8) 16.0
 
Oct. 14, 2021, 5 a.m. 5.6 ppb (6) 0.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 18.0 ppb (17) N/A N/A 1.3 μg/m3 (6) 17.0
 
Oct. 14, 2021, 4 a.m. 6.3 ppb (6) 0.3 ppb (1) N/A 6.0 ppb (6) N/A N/A 19.0 ppb (18) N/A N/A 1.2 μg/m3 (5) 18.0
 
Oct. 14, 2021, 3 a.m. 5.7 ppb (6) 0.2 ppb (1) N/A 6.0 ppb (6) N/A N/A 20.0 ppb (19) N/A N/A 1.3 μg/m3 (6) 19.0
 
Oct. 14, 2021, 2 a.m. 5.6 ppb (6) 0.2 ppb (1) N/A 6.0 ppb (6) N/A N/A 22.0 ppb (21) N/A N/A 1.1 μg/m3 (5) 21.0
 
Oct. 14, 2021, 1 a.m. 3.7 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (25) N/A N/A 1.0 μg/m3 (5) 25.0
 
Oct. 14, 2021, midnight 4.0 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 24.0 ppb (23) N/A N/A 1.3 μg/m3 (6) 23.0
 
Oct. 13, 2021, 11 p.m. 1.6 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 27.0 ppb (25) N/A N/A 1.1 μg/m3 (5) 25.0
 
Oct. 13, 2021, 10 p.m. 1.6 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 28.0 ppb (26) N/A N/A 1.4 μg/m3 (6) 26.0
 
Oct. 13, 2021, 9 p.m. 1.3 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 28.0 ppb (26) N/A N/A 1.2 μg/m3 (5) 26.0
 
Oct. 13, 2021, 8 p.m. 1.1 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 29.0 ppb (27) N/A N/A 0.9 μg/m3 (4) 27.0
 
Oct. 13, 2021, 7 p.m. 1.4 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 28.0 ppb (26) N/A N/A 3.4 μg/m3 (15) 26.0
 
Oct. 13, 2021, 6 p.m. 2.6 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A 26.0 ppb (25) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 13, 2021, 5 p.m. 2.9 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 24.0 ppb (23) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 13, 2021, 4 p.m. 15.7 ppb (15) 5.0 ppb (5) N/A 11.0 ppb (11) N/A N/A 16.0 ppb (15) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 13, 2021, 3 p.m. 20.9 ppb (20) 8.0 ppb (8) N/A 13.0 ppb (13) N/A N/A 10.0 ppb (10) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 13, 2021, 2 p.m. 36.2 ppb (35) 16.6 ppb (16) N/A 20.0 ppb (19) N/A N/A 0.0 ppb (0) N/A N/A 6.3 μg/m3 (27) 35.0
 
Oct. 13, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 13, 2021, noon 18.1 ppb (18) 1.8 ppb (2) N/A 16.0 ppb (16) N/A N/A 0.0 ppb (0) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 13, 2021, 11 a.m. 10.4 ppb (10) 0.3 ppb (1) N/A 10.0 ppb (10) N/A N/A 6.0 ppb (6) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 13, 2021, 10 a.m. 7.5 ppb (8) 0.2 ppb (1) N/A 7.0 ppb (7) N/A N/A 8.0 ppb (8) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 13, 2021, 9 a.m. 3.5 ppb (4) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 13.0 ppb (13) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 13, 2021, 8 a.m. 2.5 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 15.0 ppb (14) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 13, 2021, 7 a.m. 4.3 ppb (5) 0.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 15.0 ppb (14) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 13, 2021, 6 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 16.0 ppb (15) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 13, 2021, 5 a.m. 2.5 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 16.0 ppb (15) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 13, 2021, 4 a.m. 1.8 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 18.0 ppb (17) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 13, 2021, 3 a.m. 1.9 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 21.0 ppb (20) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 13, 2021, 2 a.m. 2.4 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 21.0 ppb (20) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 13, 2021, 1 a.m. 2.6 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 21.0 ppb (20) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 13, 2021, midnight 3.1 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A N/A 20.0 ppb (19) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 12, 2021, 11 p.m. 2.7 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 21.0 ppb (20) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 12, 2021, 10 p.m. 1.8 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 22.0 ppb (21) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 12, 2021, 9 p.m. 2.1 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 22.0 ppb (21) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 12, 2021, 8 p.m. 1.8 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A 22.0 ppb (21) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 12, 2021, 7 p.m. 1.7 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A N/A 21.0 ppb (20) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 12, 2021, 6 p.m. 1.4 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A N/A 21.0 ppb (20) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 12, 2021, 5 p.m. 1.6 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A N/A 21.0 ppb (20) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 12, 2021, 4 p.m. 2.4 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 20.0 ppb (19) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 12, 2021, 3 p.m. 3.8 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 18.0 ppb (17) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 12, 2021, 2 p.m. 8.2 ppb (8) 1.3 ppb (2) N/A 7.0 ppb (7) N/A N/A 15.0 ppb (14) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 12, 2021, 1 p.m. 9.3 ppb (9) 0.9 ppb (1) N/A 8.0 ppb (8) N/A N/A 12.0 ppb (12) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 12, 2021, noon 3.6 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 18.0 ppb (17) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 12, 2021, 11 a.m. 2.8 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 17.0 ppb (16) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 12, 2021, 10 a.m. 1.8 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 18.0 ppb (17) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 12, 2021, 9 a.m. 2.4 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 17.0 ppb (16) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 12, 2021, 8 a.m. 2.3 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 16.0 ppb (15) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 12, 2021, 7 a.m. 3.4 ppb (4) 0.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 15.0 ppb (14) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 12, 2021, 6 a.m. 3.9 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 15.0 ppb (14) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 12, 2021, 5 a.m. 2.3 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 18.0 ppb (17) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 12, 2021, 4 a.m. 4.4 ppb (5) 0.3 ppb (1) N/A 4.0 ppb (4) N/A N/A 15.0 ppb (14) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 12, 2021, 3 a.m. 2.9 ppb (3) 0.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 18.0 ppb (17) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 12, 2021, 2 a.m. 4.7 ppb (5) 0.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 17.0 ppb (16) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 12, 2021, 1 a.m. 5.0 ppb (5) 0.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 17.0 ppb (16) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 12, 2021, midnight 4.7 ppb (5) 0.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 19.0 ppb (18) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 11, 2021, 11 p.m. 4.5 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 22.0 ppb (21) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 11, 2021, 10 p.m. 3.7 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 25.0 ppb (24) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 11, 2021, 9 p.m. 6.1 ppb (6) 1.6 ppb (2) N/A 5.0 ppb (5) N/A N/A 24.0 ppb (23) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 11, 2021, 8 p.m. 6.0 ppb (6) 1.5 ppb (2) N/A 5.0 ppb (5) N/A N/A 25.0 ppb (24) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 11, 2021, 7 p.m. 7.4 ppb (7) 2.3 ppb (3) N/A 5.0 ppb (5) N/A N/A 26.0 ppb (25) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 11, 2021, 6 p.m. 5.3 ppb (5) 1.5 ppb (2) N/A 4.0 ppb (4) N/A N/A 32.0 ppb (30) N/A N/A 6.3 μg/m3 (27) 30.0
 
Oct. 11, 2021, 5 p.m. 5.1 ppb (5) 1.4 ppb (2) N/A 4.0 ppb (4) N/A N/A 31.0 ppb (29) N/A N/A 6.3 μg/m3 (27) 29.0
 
Oct. 11, 2021, 4 p.m. 8.5 ppb (9) 2.7 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 11, 2021, 3 p.m. 9.5 ppb (9) 2.4 ppb (3) N/A 7.0 ppb (7) N/A N/A 22.0 ppb (21) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 11, 2021, 2 p.m. 18.4 ppb (18) 3.6 ppb (4) N/A 15.0 ppb (15) N/A N/A 13.0 ppb (13) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 11, 2021, 1 p.m. 7.0 ppb (7) 0.6 ppb (1) N/A 7.0 ppb (7) N/A N/A 23.0 ppb (22) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 11, 2021, noon 7.8 ppb (8) 0.5 ppb (1) N/A 8.0 ppb (8) N/A N/A 17.0 ppb (16) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 11, 2021, 11 a.m. 8.7 ppb (9) 0.6 ppb (1) N/A 8.0 ppb (8) N/A N/A 15.0 ppb (14) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 11, 2021, 10 a.m. 8.2 ppb (8) 0.2 ppb (1) N/A 8.0 ppb (8) N/A N/A 12.0 ppb (12) N/A N/A 7.0 μg/m3 (30) 30.0
 
Oct. 11, 2021, 9 a.m. 5.8 ppb (6) 0.1 ppb (1) N/A 6.0 ppb (6) N/A N/A 18.0 ppb (17) N/A N/A 6.5 μg/m3 (28) 28.0
 
Oct. 11, 2021, 8 a.m. 5.2 ppb (5) 0.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 19.0 ppb (18) N/A N/A 6.1 μg/m3 (26) 26.0
 
Oct. 11, 2021, 7 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 27.0 ppb (25) N/A N/A 5.8 μg/m3 (25) 25.0
 
Oct. 11, 2021, 6 a.m. 1.4 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 30.0 ppb (28) N/A N/A 6.0 μg/m3 (25) 28.0
 
Oct. 11, 2021, 5 a.m. 2.1 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 27.0 ppb (25) N/A N/A 5.7 μg/m3 (24) 25.0
 
Oct. 11, 2021, 4 a.m. 3.5 ppb (4) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 24.0 ppb (23) N/A N/A 6.5 μg/m3 (28) 28.0
 
Oct. 11, 2021, 3 a.m. 3.7 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 24.0 ppb (23) N/A N/A 7.0 μg/m3 (30) 30.0
 
Oct. 11, 2021, 2 a.m. 5.9 ppb (6) 0.2 ppb (1) N/A 6.0 ppb (6) N/A N/A 21.0 ppb (20) N/A N/A 10.7 μg/m3 (45) 45.0
 
Oct. 11, 2021, 1 a.m. 5.9 ppb (6) 0.2 ppb (1) N/A 6.0 ppb (6) N/A N/A 22.0 ppb (21) N/A N/A 13.5 μg/m3 (54) 54.0
 
Oct. 11, 2021, midnight 1.8 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 32.0 ppb (30) N/A N/A 12.2 μg/m3 (52) 52.0
 
Oct. 10, 2021, 11 p.m. 0.8 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 35.0 ppb (33) N/A N/A 11.7 μg/m3 (49) 49.0
 
Oct. 10, 2021, 10 p.m. 0.9 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 34.0 ppb (32) N/A N/A 11.0 μg/m3 (46) 46.0
 
Oct. 10, 2021, 9 p.m. 1.0 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 33.0 ppb (31) N/A N/A 9.8 μg/m3 (41) 41.0
 
Oct. 10, 2021, 8 p.m. 1.1 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 31.0 ppb (29) N/A N/A 7.2 μg/m3 (31) 31.0
 
Oct. 10, 2021, 7 p.m. 1.1 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 31.0 ppb (29) N/A N/A 5.8 μg/m3 (25) 29.0
 
Oct. 10, 2021, 6 p.m. 2.9 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 26.0 ppb (25) N/A N/A 5.9 μg/m3 (25) 25.0
 
Oct. 10, 2021, 5 p.m. 9.0 ppb (9) 3.3 ppb (4) N/A 6.0 ppb (6) N/A N/A 20.0 ppb (19) N/A N/A 7.4 μg/m3 (31) 31.0
 
Oct. 10, 2021, 4 p.m. 19.8 ppb (19) 10.1 ppb (10) N/A 10.0 ppb (10) N/A N/A 9.0 ppb (9) N/A N/A 13.1 μg/m3 (54) 54.0
 
Oct. 10, 2021, 3 p.m. 8.6 ppb (9) 3.3 ppb (4) N/A 5.0 ppb (5) N/A N/A 10.0 ppb (10) N/A N/A 8.2 μg/m3 (35) 35.0
 
Oct. 10, 2021, 2 p.m. 10.2 ppb (10) 2.2 ppb (3) N/A 8.0 ppb (8) N/A N/A 3.0 ppb (3) N/A N/A 7.2 μg/m3 (31) 31.0
 
Oct. 10, 2021, 1 p.m. 7.7 ppb (8) 0.8 ppb (1) N/A 7.0 ppb (7) N/A N/A 5.0 ppb (5) N/A N/A 6.1 μg/m3 (26) 26.0
 
Oct. 10, 2021, noon 6.7 ppb (7) 0.5 ppb (1) N/A 6.0 ppb (6) N/A N/A 3.0 ppb (3) N/A N/A 6.4 μg/m3 (27) 27.0
 
Oct. 10, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) N/A N/A 5.6 μg/m3 (24) 24.0
 
Oct. 10, 2021, 10 a.m. 4.5 ppb (5) 0.3 ppb (1) N/A 4.0 ppb (4) N/A N/A 7.0 ppb (7) N/A N/A 4.7 μg/m3 (20) 20.0
 
Oct. 10, 2021, 9 a.m. 6.0 ppb (6) 0.3 ppb (1) N/A 6.0 ppb (6) N/A N/A 3.0 ppb (3) N/A N/A 4.1 μg/m3 (18) 18.0
 
Oct. 10, 2021, 8 a.m. 7.6 ppb (8) 0.4 ppb (1) N/A 7.0 ppb (7) N/A N/A 3.0 ppb (3) N/A N/A 4.1 μg/m3 (18) 18.0
 
Oct. 10, 2021, 7 a.m. 6.4 ppb (7) 0.2 ppb (1) N/A 6.0 ppb (6) N/A N/A 8.0 ppb (8) N/A N/A 4.3 μg/m3 (18) 18.0
 
Oct. 10, 2021, 6 a.m. 6.2 ppb (6) 0.2 ppb (1) N/A 6.0 ppb (6) N/A N/A 9.0 ppb (9) N/A N/A 3.2 μg/m3 (14) 14.0
 
Oct. 10, 2021, 5 a.m. 7.3 ppb (7) 0.2 ppb (1) N/A 7.0 ppb (7) N/A N/A 8.0 ppb (8) N/A N/A 3.9 μg/m3 (17) 17.0
 
Oct. 10, 2021, 4 a.m. 7.4 ppb (7) 0.2 ppb (1) N/A 7.0 ppb (7) N/A N/A 10.0 ppb (10) N/A N/A 3.8 μg/m3 (16) 16.0
 
Oct. 10, 2021, 3 a.m. 7.7 ppb (8) 0.2 ppb (1) N/A 8.0 ppb (8) N/A N/A 14.0 ppb (13) N/A N/A 3.6 μg/m3 (16) 16.0
 
Oct. 10, 2021, 2 a.m. 8.3 ppb (8) 0.3 ppb (1) N/A 8.0 ppb (8) N/A N/A 15.0 ppb (14) N/A N/A 3.7 μg/m3 (16) 16.0
 
Oct. 10, 2021, 1 a.m. 9.0 ppb (9) 0.2 ppb (1) N/A 9.0 ppb (9) N/A N/A 16.0 ppb (15) N/A N/A 3.1 μg/m3 (13) 15.0
 
Oct. 10, 2021, midnight 7.1 ppb (7) 0.2 ppb (1) N/A 7.0 ppb (7) N/A N/A 19.0 ppb (18) N/A N/A 2.7 μg/m3 (12) 18.0
 
Oct. 9, 2021, 11 p.m. 4.2 ppb (4) 0.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (25) N/A N/A 1.6 μg/m3 (7) 25.0
 
Oct. 9, 2021, 10 p.m. 3.7 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 27.0 ppb (25) N/A N/A 1.5 μg/m3 (7) 25.0
 
Oct. 9, 2021, 9 p.m. 3.1 ppb (3) 0.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 26.0 ppb (25) N/A N/A 1.1 μg/m3 (5) 25.0
 
Oct. 9, 2021, 8 p.m. 3.5 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 25.0 ppb (24) N/A N/A 1.0 μg/m3 (5) 24.0
 
Oct. 9, 2021, 7 p.m. 3.5 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 26.0 ppb (25) N/A N/A 2.0 μg/m3 (9) 25.0
 
Oct. 9, 2021, 6 p.m. 2.9 ppb (3) 0.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 26.0 ppb (25) N/A N/A 1.8 μg/m3 (8) 25.0
 
Oct. 9, 2021, 5 p.m. 4.8 ppb (5) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 23.0 ppb (22) N/A N/A 1.8 μg/m3 (8) 22.0
 
Oct. 9, 2021, 4 p.m. 5.1 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A 23.0 ppb (22) N/A N/A 2.1 μg/m3 (9) 22.0
 
Oct. 9, 2021, 3 p.m. 6.6 ppb (7) 0.5 ppb (1) N/A 6.0 ppb (6) N/A N/A 20.0 ppb (19) N/A N/A 2.7 μg/m3 (12) 19.0
 
Oct. 9, 2021, 2 p.m. 5.7 ppb (6) 0.2 ppb (1) N/A 6.0 ppb (6) N/A N/A 18.0 ppb (17) N/A N/A 2.8 μg/m3 (12) 17.0
 
Oct. 9, 2021, 1 p.m. 5.0 ppb (5) 0.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 19.0 ppb (18) N/A N/A 2.8 μg/m3 (12) 18.0