ID: 1064

AQSQID: 490571003

Site Name: Harrisville

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

Updated: July 30, 2021, 6:56 p.m.

Location: Ogden (N Ogden Ranchettes), UT

Reporting: False, Located: True

Current AQI: None

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
July 30, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
July 30, 2021, 4 p.m. 4.0 ppb (4) 1.1 ppb (2) N/A 3.0 ppb (3) N/A N/A 66.0 ppb (87) N/A N/A 3.3 μg/m3 (14) 87.0
 
July 30, 2021, 3 p.m. 1.4 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A 62.0 ppb (74) N/A N/A 4.4 μg/m3 (19) 74.0
 
July 30, 2021, 2 p.m. 7.0 ppb (7) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A 49.0 ppb (46) N/A N/A 4.6 μg/m3 (20) 46.0
 
July 30, 2021, 1 p.m. 5.7 ppb (6) 0.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 51.0 ppb (48) N/A N/A 4.1 μg/m3 (18) 48.0
 
July 30, 2021, noon 1.5 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 64.0 ppb (81) N/A N/A 2.8 μg/m3 (12) 81.0
 
July 30, 2021, 11 a.m. -0.4 ppb (0) 0.0 ppb (0) N/A -1.0 ppb (0) N/A N/A N/A N/A N/A 3.1 μg/m3 (13) 13.0
 
July 30, 2021, 10 a.m. 0.7 ppb (1) 0.1 ppb (1) N/A 0.0 ppb (0) N/A N/A 55.0 ppb (51) N/A N/A 7.2 μg/m3 (31) 51.0
 
July 30, 2021, 9 a.m. 3.5 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 49.0 ppb (46) N/A N/A 11.3 μg/m3 (48) 48.0
 
July 30, 2021, 8 a.m. 9.5 ppb (9) 0.5 ppb (1) N/A 9.0 ppb (9) N/A N/A 35.0 ppb (33) N/A N/A 12.3 μg/m3 (52) 52.0
 
July 30, 2021, 7 a.m. 10.2 ppb (10) 0.2 ppb (1) N/A 10.0 ppb (10) N/A N/A 38.0 ppb (36) N/A N/A 10.4 μg/m3 (44) 44.0
 
July 30, 2021, 6 a.m. 16.0 ppb (16) 0.4 ppb (1) N/A 15.0 ppb (15) N/A N/A 27.0 ppb (25) N/A N/A 11.4 μg/m3 (48) 48.0
 
July 30, 2021, 5 a.m. 17.2 ppb (17) 0.5 ppb (1) N/A 16.0 ppb (16) N/A N/A 27.0 ppb (25) N/A N/A 10.8 μg/m3 (46) 46.0
 
July 30, 2021, 4 a.m. 14.4 ppb (14) 0.2 ppb (1) N/A 14.0 ppb (14) N/A N/A 35.0 ppb (33) N/A N/A 9.8 μg/m3 (41) 41.0
 
July 30, 2021, 3 a.m. 8.2 ppb (8) 0.1 ppb (1) N/A 8.0 ppb (8) N/A N/A 49.0 ppb (46) N/A N/A 8.8 μg/m3 (37) 46.0
 
July 30, 2021, 2 a.m. 6.7 ppb (7) 0.2 ppb (1) N/A 6.0 ppb (6) N/A N/A 60.0 ppb (68) N/A N/A 9.5 μg/m3 (40) 68.0
 
July 30, 2021, 1 a.m. 4.3 ppb (5) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 64.0 ppb (81) N/A N/A 10.2 μg/m3 (43) 81.0
 
July 30, 2021, midnight 1.0 ppb (1) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 71.0 ppb (101) N/A N/A 7.5 μg/m3 (32) 101.0
 
July 29, 2021, 11 p.m. 0.6 ppb (1) 0.2 ppb (1) N/A 0.0 ppb (0) N/A N/A 72.0 ppb (102) N/A N/A 8.5 μg/m3 (36) 102.0
 
July 29, 2021, 10 p.m. 1.5 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A 76.0 ppb (104) N/A N/A 9.0 μg/m3 (38) 104.0
 
July 29, 2021, 9 p.m. 1.6 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 78.0 ppb (105) N/A N/A 9.1 μg/m3 (38) 105.0
 
July 29, 2021, 8 p.m. 1.8 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A 76.0 ppb (104) N/A N/A 10.3 μg/m3 (43) 104.0
 
July 29, 2021, 7 p.m. 3.2 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 78.0 ppb (105) N/A N/A 13.6 μg/m3 (55) 105.0
 
July 29, 2021, 6 p.m. 6.3 ppb (6) 1.1 ppb (2) N/A 5.0 ppb (5) N/A N/A 69.0 ppb (97) N/A N/A 14.2 μg/m3 (56) 97.0
 
July 29, 2021, 5 p.m. 4.1 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 61.0 ppb (71) N/A N/A 10.9 μg/m3 (46) 71.0
 
July 29, 2021, 4 p.m. 3.3 ppb (4) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A 52.0 ppb (49) N/A N/A 10.6 μg/m3 (45) 49.0
 
July 29, 2021, 3 p.m. 8.7 ppb (9) 2.6 ppb (3) N/A 6.0 ppb (6) N/A N/A 40.0 ppb (38) N/A N/A 11.8 μg/m3 (50) 50.0
 
July 29, 2021, 2 p.m. 20.0 ppb (19) 6.3 ppb (6) N/A 13.0 ppb (13) N/A N/A 26.0 ppb (25) N/A N/A 14.3 μg/m3 (56) 56.0
 
July 29, 2021, 1 p.m. 14.7 ppb (14) 3.3 ppb (4) N/A 11.0 ppb (11) N/A N/A 19.0 ppb (18) N/A N/A 10.7 μg/m3 (45) 45.0
 
July 29, 2021, noon 10.4 ppb (10) 0.8 ppb (1) N/A 9.0 ppb (9) N/A N/A 18.0 ppb (17) N/A N/A 8.8 μg/m3 (37) 37.0
 
July 29, 2021, 11 a.m. 6.6 ppb (7) 0.4 ppb (1) N/A 6.0 ppb (6) N/A N/A 23.0 ppb (22) N/A N/A 9.1 μg/m3 (38) 38.0
 
July 29, 2021, 10 a.m. 7.4 ppb (7) 0.6 ppb (1) N/A 7.0 ppb (7) N/A N/A 21.0 ppb (20) N/A N/A 9.4 μg/m3 (40) 40.0
 
July 29, 2021, 9 a.m. 5.4 ppb (6) 0.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 26.0 ppb (25) N/A N/A 8.3 μg/m3 (35) 35.0
 
July 29, 2021, 8 a.m. 3.8 ppb (4) 0.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 30.0 ppb (28) N/A N/A 6.7 μg/m3 (28) 28.0
 
July 29, 2021, 7 a.m. 2.5 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (32) N/A N/A 7.3 μg/m3 (31) 32.0
 
July 29, 2021, 6 a.m. 1.3 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 35.0 ppb (33) N/A N/A 7.6 μg/m3 (32) 33.0
 
July 29, 2021, 5 a.m. 1.3 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) N/A N/A 7.2 μg/m3 (31) 39.0
 
July 29, 2021, 4 a.m. -0.1 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 51.0 ppb (48) N/A N/A 6.2 μg/m3 (26) 48.0
 
July 29, 2021, 3 a.m. -0.4 ppb (0) -0.1 ppb (0) N/A -1.0 ppb (0) N/A N/A 50.0 ppb (47) N/A N/A 5.7 μg/m3 (24) 47.0
 
July 29, 2021, 2 a.m. -0.5 ppb (0) -0.1 ppb (0) N/A -1.0 ppb (0) N/A N/A 54.0 ppb (50) N/A N/A 4.7 μg/m3 (20) 50.0
 
July 29, 2021, 1 a.m. -0.4 ppb (0) 0.0 ppb (0) N/A -1.0 ppb (0) N/A N/A 57.0 ppb (58) N/A N/A 4.3 μg/m3 (18) 58.0
 
July 29, 2021, midnight -0.3 ppb (0) 0.0 ppb (0) N/A -1.0 ppb (0) N/A N/A 55.0 ppb (51) N/A N/A 7.1 μg/m3 (30) 51.0
 
July 28, 2021, 11 p.m. -0.1 ppb (0) 0.1 ppb (1) N/A -1.0 ppb (0) N/A N/A 58.0 ppb (61) N/A N/A 6.0 μg/m3 (25) 61.0
 
July 28, 2021, 10 p.m. -0.2 ppb (0) 0.2 ppb (1) N/A -1.0 ppb (0) N/A N/A 69.0 ppb (97) N/A N/A 7.1 μg/m3 (30) 97.0
 
July 28, 2021, 9 p.m. -0.6 ppb (0) 0.2 ppb (1) N/A N/A N/A N/A 63.0 ppb (78) N/A N/A 5.8 μg/m3 (25) 78.0
 
July 28, 2021, 8 p.m. -0.4 ppb (0) 0.1 ppb (1) N/A -1.0 ppb (0) N/A N/A 59.0 ppb (65) N/A N/A 6.9 μg/m3 (29) 65.0
 
July 28, 2021, 7 p.m. 1.1 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A 58.0 ppb (61) N/A N/A 4.9 μg/m3 (21) 61.0
 
July 28, 2021, 6 p.m. 4.7 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A 55.0 ppb (51) N/A N/A 5.4 μg/m3 (23) 51.0
 
July 28, 2021, 5 p.m. 6.9 ppb (7) 1.3 ppb (2) N/A 5.0 ppb (5) N/A N/A 54.0 ppb (50) N/A N/A 6.2 μg/m3 (26) 50.0
 
July 28, 2021, 4 p.m. 4.9 ppb (5) 1.2 ppb (2) N/A 3.0 ppb (3) N/A N/A 51.0 ppb (48) N/A N/A 6.2 μg/m3 (26) 48.0
 
July 28, 2021, 3 p.m. 6.4 ppb (7) 1.1 ppb (2) N/A 5.0 ppb (5) N/A N/A 43.0 ppb (40) N/A N/A 6.4 μg/m3 (27) 40.0
 
July 28, 2021, 2 p.m. 12.3 ppb (12) 2.5 ppb (3) N/A 9.0 ppb (9) N/A N/A 35.0 ppb (33) N/A N/A 6.8 μg/m3 (29) 33.0
 
July 28, 2021, 1 p.m. 15.1 ppb (15) 2.1 ppb (2) N/A 13.0 ppb (13) N/A N/A 24.0 ppb (23) N/A N/A 7.6 μg/m3 (32) 32.0
 
July 28, 2021, noon 5.2 ppb (5) 0.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 34.0 ppb (32) N/A N/A 5.8 μg/m3 (25) 32.0
 
July 28, 2021, 11 a.m. 3.2 ppb (4) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (33) N/A N/A 5.2 μg/m3 (22) 33.0
 
July 28, 2021, 10 a.m. 2.5 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (36) N/A N/A 4.8 μg/m3 (20) 36.0
 
July 28, 2021, 9 a.m. 2.8 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (35) N/A N/A 5.5 μg/m3 (23) 35.0
 
July 28, 2021, 8 a.m. 3.9 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 38.0 ppb (36) N/A N/A 4.8 μg/m3 (20) 36.0
 
July 28, 2021, 7 a.m. 3.5 ppb (4) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (38) N/A N/A 4.9 μg/m3 (21) 38.0
 
July 28, 2021, 6 a.m. 2.4 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (40) N/A N/A 4.6 μg/m3 (20) 40.0
 
July 28, 2021, 5 a.m. 2.4 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 49.0 ppb (46) N/A N/A 4.3 μg/m3 (18) 46.0
 
July 28, 2021, 4 a.m. 4.4 ppb (5) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 46.0 ppb (43) N/A N/A 4.9 μg/m3 (21) 43.0
 
July 28, 2021, 3 a.m. 3.6 ppb (4) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 51.0 ppb (48) N/A N/A 3.9 μg/m3 (17) 48.0
 
July 28, 2021, 2 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 56.0 ppb (55) N/A N/A 3.7 μg/m3 (16) 55.0
 
July 28, 2021, 1 a.m. 0.7 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 64.0 ppb (81) N/A N/A 3.5 μg/m3 (15) 81.0
 
July 28, 2021, midnight -0.5 ppb (0) 0.0 ppb (0) N/A -1.0 ppb (0) N/A N/A 65.0 ppb (84) N/A N/A 3.8 μg/m3 (16) 84.0
 
July 27, 2021, 11 p.m. -0.4 ppb (0) 0.0 ppb (0) N/A -1.0 ppb (0) N/A N/A 64.0 ppb (81) N/A N/A 3.1 μg/m3 (13) 81.0
 
July 27, 2021, 10 p.m. -0.7 ppb (0) 0.0 ppb (0) N/A -1.0 ppb (0) N/A N/A 67.0 ppb (91) N/A N/A 3.1 μg/m3 (13) 91.0
 
July 27, 2021, 9 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 73.0 ppb (103) N/A N/A 3.8 μg/m3 (16) 103.0
 
July 27, 2021, 8 p.m. 0.9 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 78.0 ppb (105) N/A N/A 4.8 μg/m3 (20) 105.0
 
July 27, 2021, 7 p.m. 1.5 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 75.0 ppb (104) N/A N/A 5.5 μg/m3 (23) 104.0
 
July 27, 2021, 6 p.m. 2.0 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 66.0 ppb (87) N/A N/A 5.7 μg/m3 (24) 87.0
 
July 27, 2021, 5 p.m. 2.5 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 54.0 ppb (50) N/A N/A 4.8 μg/m3 (20) 50.0
 
July 27, 2021, 4 p.m. 5.9 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 48.0 ppb (45) N/A N/A 6.4 μg/m3 (27) 45.0
 
July 27, 2021, 3 p.m. 9.0 ppb (9) 1.4 ppb (2) N/A 7.0 ppb (7) N/A N/A 43.0 ppb (40) N/A N/A 6.2 μg/m3 (26) 40.0
 
July 27, 2021, 2 p.m. 6.4 ppb (7) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 41.0 ppb (38) N/A N/A 6.0 μg/m3 (25) 38.0
 
July 27, 2021, 1 p.m. 12.5 ppb (12) 0.5 ppb (1) N/A 12.0 ppb (12) N/A N/A 31.0 ppb (29) N/A N/A 7.1 μg/m3 (30) 30.0
 
July 27, 2021, noon 9.6 ppb (10) 0.3 ppb (1) N/A 9.0 ppb (9) N/A N/A 33.0 ppb (31) N/A N/A 7.7 μg/m3 (33) 33.0
 
July 27, 2021, 11 a.m. 5.4 ppb (6) 0.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 38.0 ppb (36) N/A N/A 7.2 μg/m3 (31) 36.0
 
July 27, 2021, 10 a.m. 2.7 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (42) N/A N/A 6.9 μg/m3 (29) 42.0
 
July 27, 2021, 9 a.m. 1.0 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (45) N/A N/A 7.1 μg/m3 (30) 45.0
 
July 27, 2021, 8 a.m. 3.5 ppb (4) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 47.0 ppb (44) N/A N/A 7.8 μg/m3 (33) 44.0
 
July 27, 2021, 7 a.m. 2.6 ppb (3) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 49.0 ppb (46) N/A N/A 8.1 μg/m3 (34) 46.0
 
July 27, 2021, 6 a.m. 2.3 ppb (3) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 53.0 ppb (50) N/A N/A 8.4 μg/m3 (36) 50.0
 
July 27, 2021, 5 a.m. 2.6 ppb (3) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 52.0 ppb (49) N/A N/A 9.2 μg/m3 (39) 49.0
 
July 27, 2021, 4 a.m. 1.8 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 57.0 ppb (58) N/A N/A 9.1 μg/m3 (38) 58.0
 
July 27, 2021, 3 a.m. 4.1 ppb (4) -0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 59.0 ppb (65) N/A N/A 17.8 μg/m3 (63) 65.0
 
July 27, 2021, 2 a.m. 4.4 ppb (5) -0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 73.0 ppb (103) N/A N/A 29.0 μg/m3 (87) 103.0
 
July 27, 2021, 1 a.m. 0.7 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 81.0 ppb (107) N/A N/A 28.0 μg/m3 (85) 107.0
 
July 27, 2021, midnight 0.3 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A N/A 83.0 ppb (108) N/A N/A 26.3 μg/m3 (81) 108.0
 
July 26, 2021, 11 p.m. 0.7 ppb (1) 0.1 ppb (1) N/A 0.0 ppb (0) N/A N/A 84.0 ppb (108) N/A N/A 25.4 μg/m3 (79) 108.0
 
July 26, 2021, 10 p.m. 0.9 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 82.0 ppb (107) N/A N/A 24.6 μg/m3 (78) 107.0
 
July 26, 2021, 9 p.m. 0.8 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 88.0 ppb (110) N/A N/A 25.6 μg/m3 (80) 110.0
 
July 26, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 26.9 μg/m3 (83) 83.0
 
July 26, 2021, 7 p.m. 3.8 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 85.0 ppb (109) N/A N/A 28.4 μg/m3 (86) 109.0
 
July 26, 2021, 6 p.m. 8.0 ppb (8) 2.2 ppb (3) N/A 7.0 ppb (7) N/A N/A 71.0 ppb (101) N/A N/A 28.2 μg/m3 (85) 101.0
 
July 26, 2021, 5 p.m. 9.3 ppb (9) 2.8 ppb (3) N/A 7.0 ppb (7) N/A N/A 59.0 ppb (65) N/A N/A 27.3 μg/m3 (83) 83.0
 
July 26, 2021, 4 p.m. 13.9 ppb (14) 4.2 ppb (4) N/A 11.0 ppb (11) N/A N/A 42.0 ppb (39) N/A N/A 24.8 μg/m3 (78) 78.0
 
July 26, 2021, 3 p.m. 28.1 ppb (27) 10.0 ppb (10) N/A 19.0 ppb (18) N/A N/A 25.0 ppb (24) N/A N/A 26.4 μg/m3 (82) 82.0
 
July 26, 2021, 2 p.m. 29.8 ppb (29) 10.1 ppb (10) N/A 21.0 ppb (20) N/A N/A 17.0 ppb (16) N/A N/A 27.2 μg/m3 (83) 83.0
 
July 26, 2021, 1 p.m. 17.9 ppb (17) 3.3 ppb (4) N/A 16.0 ppb (16) N/A N/A 19.0 ppb (18) N/A N/A 23.5 μg/m3 (75) 75.0
 
July 26, 2021, noon 114.9 ppb (104) 49.1 ppb (47) N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 23.7 μg/m3 (76) 104.0
 
July 26, 2021, 11 a.m. 61.6 ppb (60) 22.9 ppb (22) N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 24.2 μg/m3 (77) 77.0
 
July 26, 2021, 10 a.m. 5.9 ppb (6) 1.1 ppb (2) N/A 6.0 ppb (6) N/A N/A 34.0 ppb (32) N/A N/A 23.7 μg/m3 (76) 76.0
 
July 26, 2021, 9 a.m. 2.7 ppb (3) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (35) N/A N/A 22.1 μg/m3 (73) 73.0
 
July 26, 2021, 8 a.m. 1.9 ppb (2) 1.1 ppb (2) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (38) N/A N/A 21.5 μg/m3 (71) 71.0
 
July 26, 2021, 7 a.m. 3.0 ppb (3) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 45.0 ppb (42) N/A N/A 22.1 μg/m3 (73) 73.0
 
July 26, 2021, 6 a.m. 1.5 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 57.0 ppb (58) N/A N/A 22.9 μg/m3 (74) 74.0
 
July 26, 2021, 5 a.m. 3.1 ppb (3) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 55.0 ppb (51) N/A N/A 25.0 μg/m3 (79) 79.0
 
July 26, 2021, 4 a.m. 6.2 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 46.0 ppb (43) N/A N/A 26.1 μg/m3 (81) 81.0
 
July 26, 2021, 3 a.m. 10.3 ppb (10) 1.8 ppb (2) N/A 9.0 ppb (9) N/A N/A 46.0 ppb (43) N/A N/A 31.8 μg/m3 (93) 93.0
 
July 26, 2021, 2 a.m. 9.8 ppb (10) 1.1 ppb (2) N/A 10.0 ppb (10) N/A N/A 52.0 ppb (49) N/A N/A 27.8 μg/m3 (85) 85.0
 
July 26, 2021, 1 a.m. 2.5 ppb (3) 1.1 ppb (2) N/A 2.0 ppb (2) N/A N/A 71.0 ppb (101) N/A N/A 26.3 μg/m3 (81) 101.0
 
July 26, 2021, midnight 1.6 ppb (2) 1.2 ppb (2) N/A 1.0 ppb (1) N/A N/A 75.0 ppb (104) N/A N/A 27.7 μg/m3 (84) 104.0
 
July 25, 2021, 11 p.m. 1.4 ppb (2) 1.2 ppb (2) N/A 1.0 ppb (1) N/A N/A 76.0 ppb (104) N/A N/A 29.2 μg/m3 (87) 104.0
 
July 25, 2021, 10 p.m. 1.0 ppb (1) 1.2 ppb (2) N/A 1.0 ppb (1) N/A N/A 72.0 ppb (102) N/A N/A 30.7 μg/m3 (91) 102.0
 
July 25, 2021, 9 p.m. 1.5 ppb (2) 1.2 ppb (2) N/A 1.0 ppb (1) N/A N/A 72.0 ppb (102) N/A N/A 30.6 μg/m3 (90) 102.0
 
July 25, 2021, 8 p.m. 2.6 ppb (3) 1.3 ppb (2) N/A 2.0 ppb (2) N/A N/A 72.0 ppb (102) N/A N/A 29.5 μg/m3 (88) 102.0
 
July 25, 2021, 7 p.m. 3.6 ppb (4) 1.4 ppb (2) N/A 3.0 ppb (3) N/A N/A 73.0 ppb (103) N/A N/A 29.6 μg/m3 (88) 103.0
 
July 25, 2021, 6 p.m. 4.3 ppb (5) 1.5 ppb (2) N/A 4.0 ppb (4) N/A N/A 69.0 ppb (97) N/A N/A 28.6 μg/m3 (86) 97.0
 
July 25, 2021, 5 p.m. 3.7 ppb (4) 1.6 ppb (2) N/A 3.0 ppb (3) N/A N/A 62.0 ppb (74) N/A N/A 27.5 μg/m3 (84) 84.0
 
July 25, 2021, 4 p.m. 7.1 ppb (7) 2.3 ppb (3) N/A 6.0 ppb (6) N/A N/A 48.0 ppb (45) N/A N/A 26.1 μg/m3 (81) 81.0
 
July 25, 2021, 3 p.m. 7.5 ppb (8) 2.3 ppb (3) N/A 6.0 ppb (6) N/A N/A 43.0 ppb (40) N/A N/A 25.3 μg/m3 (79) 79.0
 
July 25, 2021, 2 p.m. 13.6 ppb (13) 3.4 ppb (4) N/A 11.0 ppb (11) N/A N/A 31.0 ppb (29) N/A N/A 26.9 μg/m3 (83) 83.0
 
July 25, 2021, 1 p.m. 8.2 ppb (8) 1.7 ppb (2) N/A 7.0 ppb (7) N/A N/A 30.0 ppb (28) N/A N/A 26.3 μg/m3 (81) 81.0
 
July 25, 2021, noon 8.0 ppb (8) 1.3 ppb (2) N/A 8.0 ppb (8) N/A N/A 27.0 ppb (25) N/A N/A 26.6 μg/m3 (82) 82.0
 
July 25, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A 27.9 μg/m3 (85) 85.0
 
July 25, 2021, 10 a.m. 6.9 ppb (7) 1.1 ppb (2) N/A 7.0 ppb (7) N/A N/A 31.0 ppb (29) N/A N/A 26.9 μg/m3 (83) 83.0
 
July 25, 2021, 9 a.m. 8.7 ppb (9) 1.1 ppb (2) N/A 8.0 ppb (8) N/A N/A 30.0 ppb (28) N/A N/A 27.1 μg/m3 (83) 83.0
 
July 25, 2021, 8 a.m. 8.9 ppb (9) 1.2 ppb (2) N/A 9.0 ppb (9) N/A N/A 33.0 ppb (31) N/A N/A 27.2 μg/m3 (83) 83.0
 
July 25, 2021, 7 a.m. 13.0 ppb (13) 1.2 ppb (2) N/A 13.0 ppb (13) N/A N/A 30.0 ppb (28) N/A N/A 27.6 μg/m3 (84) 84.0
 
July 25, 2021, 6 a.m. 11.3 ppb (11) 1.1 ppb (2) N/A 11.0 ppb (11) N/A N/A 35.0 ppb (33) N/A N/A 26.5 μg/m3 (82) 82.0
 
July 25, 2021, 5 a.m. 9.9 ppb (10) 1.1 ppb (2) N/A 10.0 ppb (10) N/A N/A 41.0 ppb (38) N/A N/A 23.6 μg/m3 (76) 76.0
 
July 25, 2021, 4 a.m. 9.0 ppb (9) 1.2 ppb (2) N/A 9.0 ppb (9) N/A N/A 47.0 ppb (44) N/A N/A 23.1 μg/m3 (75) 75.0
 
July 25, 2021, 3 a.m. 6.9 ppb (7) 1.1 ppb (2) N/A 7.0 ppb (7) N/A N/A 55.0 ppb (51) N/A N/A 20.9 μg/m3 (70) 70.0
 
July 25, 2021, 2 a.m. 3.9 ppb (4) 1.1 ppb (2) N/A 4.0 ppb (4) N/A N/A 64.0 ppb (81) N/A N/A 18.2 μg/m3 (64) 81.0
 
July 25, 2021, 1 a.m. 2.4 ppb (3) 1.1 ppb (2) N/A 2.0 ppb (2) N/A N/A 70.0 ppb (100) N/A N/A 17.6 μg/m3 (63) 100.0
 
July 25, 2021, midnight 1.0 ppb (1) 1.1 ppb (2) N/A 1.0 ppb (1) N/A N/A 74.0 ppb (103) N/A N/A 18.7 μg/m3 (65) 103.0
 
July 24, 2021, 11 p.m. 0.9 ppb (1) 1.2 ppb (2) N/A 1.0 ppb (1) N/A N/A 77.0 ppb (105) N/A N/A 21.5 μg/m3 (71) 105.0
 
July 24, 2021, 10 p.m. 0.9 ppb (1) 1.2 ppb (2) N/A 1.0 ppb (1) N/A N/A 79.0 ppb (106) N/A N/A 23.8 μg/m3 (76) 106.0
 
July 24, 2021, 9 p.m. 1.2 ppb (2) 1.2 ppb (2) N/A 1.0 ppb (1) N/A N/A 84.0 ppb (108) N/A N/A 30.2 μg/m3 (90) 108.0
 
July 24, 2021, 8 p.m. 2.3 ppb (3) 1.3 ppb (2) N/A 2.0 ppb (2) N/A N/A 93.0 ppb (113) N/A N/A 56.1 μg/m3 (152) 152.0
 
July 24, 2021, 7 p.m. 3.5 ppb (4) 1.4 ppb (2) N/A 3.0 ppb (3) N/A N/A 80.0 ppb (106) N/A N/A 42.4 μg/m3 (118) 118.0
 
July 24, 2021, 6 p.m. 4.5 ppb (5) 1.7 ppb (2) N/A 4.0 ppb (4) N/A N/A 66.0 ppb (87) N/A N/A 23.9 μg/m3 (76) 87.0
 
July 24, 2021, 5 p.m. 3.6 ppb (4) 1.7 ppb (2) N/A 3.0 ppb (3) N/A N/A 55.0 ppb (51) N/A N/A 21.8 μg/m3 (72) 72.0
 
July 24, 2021, 4 p.m. 5.4 ppb (6) 2.3 ppb (3) N/A 4.0 ppb (4) N/A N/A 45.0 ppb (42) N/A N/A 21.9 μg/m3 (72) 72.0
 
July 24, 2021, 3 p.m. 15.9 ppb (15) 5.3 ppb (5) N/A 11.0 ppb (11) N/A N/A 28.0 ppb (26) N/A N/A 24.1 μg/m3 (77) 77.0
 
July 24, 2021, 2 p.m. 16.0 ppb (16) 4.8 ppb (5) N/A 12.0 ppb (12) N/A N/A 19.0 ppb (18) N/A N/A 21.0 μg/m3 (70) 70.0
 
July 24, 2021, 1 p.m. 10.9 ppb (11) 2.5 ppb (3) N/A 9.0 ppb (9) N/A N/A 19.0 ppb (18) N/A N/A 20.3 μg/m3 (69) 69.0
 
July 24, 2021, noon 8.6 ppb (9) 1.4 ppb (2) N/A 8.0 ppb (8) N/A N/A 22.0 ppb (21) N/A N/A 20.1 μg/m3 (68) 68.0
 
July 24, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 19.3 μg/m3 (67) 67.0
 
July 24, 2021, 10 a.m. 4.3 ppb (5) 1.2 ppb (2) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (28) N/A N/A 19.1 μg/m3 (66) 66.0
 
July 24, 2021, 9 a.m. 7.7 ppb (8) 1.2 ppb (2) N/A 7.0 ppb (7) N/A N/A 26.0 ppb (25) N/A N/A 17.3 μg/m3 (62) 62.0
 
July 24, 2021, 8 a.m. 5.9 ppb (6) 1.2 ppb (2) N/A 6.0 ppb (6) N/A N/A 33.0 ppb (31) N/A N/A 17.9 μg/m3 (64) 64.0
 
July 24, 2021, 7 a.m. 8.9 ppb (9) 1.2 ppb (2) N/A 9.0 ppb (9) N/A N/A 29.0 ppb (27) N/A N/A 17.2 μg/m3 (62) 62.0
 
July 24, 2021, 6 a.m. 7.9 ppb (8) 1.2 ppb (2) N/A 8.0 ppb (8) N/A N/A 32.0 ppb (30) N/A N/A 16.2 μg/m3 (60) 60.0
 
July 24, 2021, 5 a.m. 5.9 ppb (6) 1.1 ppb (2) N/A 6.0 ppb (6) N/A N/A 41.0 ppb (38) N/A N/A 16.0 μg/m3 (60) 60.0
 
July 24, 2021, 4 a.m. 4.4 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 51.0 ppb (48) N/A N/A 17.8 μg/m3 (63) 63.0
 
July 24, 2021, 3 a.m. 2.5 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 56.0 ppb (55) N/A N/A 15.7 μg/m3 (59) 59.0
 
July 24, 2021, 2 a.m. 3.0 ppb (3) 1.1 ppb (2) N/A 3.0 ppb (3) N/A N/A 58.0 ppb (61) N/A N/A 12.6 μg/m3 (53) 61.0
 
July 24, 2021, 1 a.m. 2.1 ppb (2) 1.2 ppb (2) N/A 2.0 ppb (2) N/A N/A 59.0 ppb (65) N/A N/A 8.8 μg/m3 (37) 65.0
 
July 24, 2021, midnight 0.6 ppb (1) 1.2 ppb (2) N/A 0.0 ppb (0) N/A N/A 60.0 ppb (68) N/A N/A 10.5 μg/m3 (44) 68.0
 
July 23, 2021, 11 p.m. 0.7 ppb (1) 1.2 ppb (2) N/A 0.0 ppb (0) N/A N/A 60.0 ppb (68) N/A N/A 6.9 μg/m3 (29) 68.0
 
July 23, 2021, 10 p.m. 0.3 ppb (1) 1.1 ppb (2) N/A 0.0 ppb (0) N/A N/A 61.0 ppb (71) N/A N/A 5.1 μg/m3 (22) 71.0
 
July 23, 2021, 9 p.m. 0.2 ppb (1) 1.2 ppb (2) N/A 0.0 ppb (0) N/A N/A 62.0 ppb (74) N/A N/A 4.5 μg/m3 (19) 74.0
 
July 23, 2021, 8 p.m. 0.8 ppb (1) 1.3 ppb (2) N/A 0.0 ppb (0) N/A N/A 63.0 ppb (78) N/A N/A 6.3 μg/m3 (27) 78.0
 
July 23, 2021, 7 p.m. 1.3 ppb (2) 1.3 ppb (2) N/A 1.0 ppb (1) N/A N/A 64.0 ppb (81) N/A N/A 8.0 μg/m3 (34) 81.0
 
July 23, 2021, 6 p.m. 2.0 ppb (2) 1.4 ppb (2) N/A 2.0 ppb (2) N/A N/A 65.0 ppb (84) N/A N/A 10.8 μg/m3 (46) 84.0