ID: 9722

AQSQID: 113490353015

Site Name: Utah Tech. Center

Added: June 19, 2021, 5:40 a.m.

Updated: Aug. 1, 2021, 2:55 a.m.

Location: Salt Lake City (Jordan Meadows), UT

Reporting: True, Located: True

Current AQI: 87.0

Salt Lake City (Jordan Meadows) UT, US: 40.7771, -111.945

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Aug. 1, 2021, 1 a.m. 3.5 ppb (4) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 66.0 ppb (87) 0.0 ppb (0) N/A 3.9 μg/m3 (17) 87.0
 
Aug. 1, 2021, midnight 2.9 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 68.0 ppb (94) 0.0 ppb (0) N/A 3.6 μg/m3 (16) 94.0
 
July 31, 2021, 11 p.m. 2.5 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 75.0 ppb (104) 0.0 ppb (0) N/A 3.8 μg/m3 (16) 104.0
 
July 31, 2021, 10 p.m. 3.8 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 74.0 ppb (103) 0.0 ppb (0) N/A 4.3 μg/m3 (18) 103.0
 
July 31, 2021, 9 p.m. 3.3 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 77.0 ppb (105) 0.0 ppb (0) N/A 4.3 μg/m3 (18) 105.0
 
July 31, 2021, 8 p.m. 3.4 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 80.0 ppb (106) 0.0 ppb (0) N/A 4.6 μg/m3 (20) 106.0
 
July 31, 2021, 7 p.m. 2.8 ppb (3) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 76.0 ppb (104) 0.0 ppb (0) N/A 4.2 μg/m3 (18) 104.0
 
July 31, 2021, 6 p.m. 2.7 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 72.0 ppb (102) 0.0 ppb (0) N/A 4.2 μg/m3 (18) 102.0
 
July 31, 2021, 5 p.m. 3.1 ppb (3) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 69.0 ppb (97) 0.0 ppb (0) N/A 4.7 μg/m3 (20) 97.0
 
July 31, 2021, 4 p.m. 6.9 ppb (7) 1.2 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 59.0 ppb (65) 0.1 ppb (2) N/A 7.4 μg/m3 (31) 65.0
 
July 31, 2021, 3 p.m. 9.3 ppb (9) 2.0 ppb (2) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 46.0 ppb (43) 0.1 ppb (2) N/A 8.8 μg/m3 (37) 43.0
 
July 31, 2021, 2 p.m. 9.2 ppb (9) 1.8 ppb (2) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 39.0 ppb (37) 0.1 ppb (2) N/A 9.5 μg/m3 (40) 40.0
 
July 31, 2021, 1 p.m. 16.8 ppb (16) 2.3 ppb (3) N/A 15.0 ppb (15) N/A 1.0 ppb (2) 29.0 ppb (27) 0.1 ppb (2) N/A 8.7 μg/m3 (37) 37.0
 
July 31, 2021, noon 20.5 ppb (20) 1.4 ppb (2) N/A 19.0 ppb (18) N/A 1.0 ppb (2) 17.0 ppb (16) 0.2 ppb (3) N/A 10.6 μg/m3 (45) 45.0
 
July 31, 2021, 11 a.m. 15.0 ppb (15) 0.4 ppb (1) N/A 15.0 ppb (15) N/A 1.0 ppb (2) N/A 0.1 ppb (2) N/A 8.4 μg/m3 (36) 36.0
 
July 31, 2021, 10 a.m. 23.6 ppb (23) 0.5 ppb (1) N/A 23.0 ppb (22) N/A 1.0 ppb (2) 18.0 ppb (17) 0.2 ppb (3) N/A 11.5 μg/m3 (48) 48.0
 
July 31, 2021, 9 a.m. 26.6 ppb (26) 0.6 ppb (1) N/A 26.0 ppb (25) N/A 1.0 ppb (2) 18.0 ppb (17) 0.2 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
July 31, 2021, 8 a.m. 13.5 ppb (13) 0.3 ppb (1) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 39.0 ppb (37) 0.1 ppb (2) N/A 7.6 μg/m3 (32) 37.0
 
July 31, 2021, 7 a.m. 15.4 ppb (15) 0.3 ppb (1) N/A 15.0 ppb (15) N/A 2.0 ppb (3) 44.0 ppb (41) 0.1 ppb (2) N/A 6.5 μg/m3 (28) 41.0
 
July 31, 2021, 6 a.m. 22.0 ppb (21) 0.4 ppb (1) N/A 22.0 ppb (21) N/A 1.0 ppb (2) 31.0 ppb (29) 0.2 ppb (3) N/A 7.6 μg/m3 (32) 32.0
 
July 31, 2021, 5 a.m. 17.8 ppb (17) 0.3 ppb (1) N/A 17.0 ppb (17) N/A 1.0 ppb (2) 47.0 ppb (44) 0.3 ppb (4) N/A 6.1 μg/m3 (26) 44.0
 
July 31, 2021, 4 a.m. 13.8 ppb (14) 0.2 ppb (1) N/A 14.0 ppb (14) N/A 1.0 ppb (2) 60.0 ppb (68) 0.1 ppb (2) N/A 4.6 μg/m3 (20) 68.0
 
July 31, 2021, 3 a.m. 10.5 ppb (10) 0.2 ppb (1) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 66.0 ppb (87) 0.1 ppb (2) N/A 4.2 μg/m3 (18) 87.0
 
July 31, 2021, 2 a.m. 7.6 ppb (8) 0.1 ppb (1) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 75.0 ppb (104) 0.0 ppb (0) N/A 5.2 μg/m3 (22) 104.0
 
July 31, 2021, 1 a.m. 6.2 ppb (6) 0.2 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 83.0 ppb (108) 0.1 ppb (2) N/A 3.9 μg/m3 (17) 108.0
 
July 31, 2021, midnight 5.8 ppb (6) 0.3 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 84.0 ppb (108) 0.0 ppb (0) N/A 3.9 μg/m3 (17) 108.0
 
July 30, 2021, 11 p.m. 6.6 ppb (7) 0.6 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 80.0 ppb (106) 0.0 ppb (0) N/A 3.4 μg/m3 (15) 106.0
 
July 30, 2021, 10 p.m. 3.5 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 79.0 ppb (106) 0.0 ppb (0) N/A 3.3 μg/m3 (14) 106.0
 
July 30, 2021, 9 p.m. 5.3 ppb (5) 0.7 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 81.0 ppb (107) 0.0 ppb (0) N/A 3.8 μg/m3 (16) 107.0
 
July 30, 2021, 8 p.m. 5.7 ppb (6) 0.6 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 77.0 ppb (105) 0.0 ppb (0) N/A 3.5 μg/m3 (15) 105.0
 
July 30, 2021, 7 p.m. 4.7 ppb (5) 0.5 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 77.0 ppb (105) 0.0 ppb (0) N/A 3.4 μg/m3 (15) 105.0
 
July 30, 2021, 6 p.m. 5.5 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 76.0 ppb (104) 0.0 ppb (0) N/A 3.9 μg/m3 (17) 104.0
 
July 30, 2021, 5 p.m. 9.0 ppb (9) 1.4 ppb (2) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 66.0 ppb (87) 0.1 ppb (2) N/A 4.8 μg/m3 (20) 87.0
 
July 30, 2021, 4 p.m. 8.3 ppb (8) 1.1 ppb (2) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 65.0 ppb (84) 0.0 ppb (0) N/A 3.8 μg/m3 (16) 84.0
 
July 30, 2021, 3 p.m. 10.8 ppb (11) 1.9 ppb (2) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 57.0 ppb (58) 0.1 ppb (2) N/A 4.1 μg/m3 (18) 58.0
 
July 30, 2021, 2 p.m. 9.3 ppb (9) 1.4 ppb (2) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 52.0 ppb (49) 0.1 ppb (2) N/A 3.6 μg/m3 (16) 49.0
 
July 30, 2021, 1 p.m. 10.1 ppb (10) 0.7 ppb (1) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 47.0 ppb (44) 0.1 ppb (2) N/A 3.8 μg/m3 (16) 44.0
 
July 30, 2021, noon 14.0 ppb (14) 0.3 ppb (1) N/A 14.0 ppb (14) N/A 1.0 ppb (2) 50.0 ppb (47) 0.1 ppb (2) N/A 4.6 μg/m3 (20) 47.0
 
July 30, 2021, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 62.0 ppb (74) 0.0 ppb (0) N/A 3.9 μg/m3 (17) 74.0
 
July 30, 2021, 10 a.m. 4.4 ppb (5) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 66.0 ppb (87) 0.0 ppb (0) N/A 4.1 μg/m3 (18) 87.0
 
July 30, 2021, 9 a.m. 3.1 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 70.0 ppb (100) 0.0 ppb (0) N/A 3.3 μg/m3 (14) 100.0
 
July 30, 2021, 8 a.m. 2.4 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 63.0 ppb (78) 0.0 ppb (0) N/A 14.6 μg/m3 (57) 78.0
 
July 30, 2021, 7 a.m. 7.5 ppb (8) 0.1 ppb (1) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 48.0 ppb (45) 0.1 ppb (2) N/A 8.9 μg/m3 (38) 45.0
 
July 30, 2021, 6 a.m. 12.0 ppb (12) 0.1 ppb (1) N/A 12.0 ppb (12) N/A 1.0 ppb (2) 45.0 ppb (42) 0.1 ppb (2) N/A 7.0 μg/m3 (30) 42.0
 
July 30, 2021, 5 a.m. 13.8 ppb (14) 0.2 ppb (1) N/A 14.0 ppb (14) N/A 1.0 ppb (2) 43.0 ppb (40) 0.1 ppb (2) N/A 6.7 μg/m3 (28) 40.0
 
July 30, 2021, 4 a.m. 9.5 ppb (9) 0.2 ppb (1) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 50.0 ppb (47) 0.1 ppb (2) N/A 8.6 μg/m3 (36) 47.0
 
July 30, 2021, 3 a.m. 8.7 ppb (9) 0.1 ppb (1) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 57.0 ppb (58) 0.1 ppb (2) N/A 9.3 μg/m3 (39) 58.0
 
July 30, 2021, 2 a.m. 5.8 ppb (6) 0.2 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 63.0 ppb (78) 0.1 ppb (2) N/A 6.9 μg/m3 (29) 78.0
 
July 30, 2021, 1 a.m. 7.6 ppb (8) 0.4 ppb (1) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 62.0 ppb (74) 0.1 ppb (2) N/A 5.2 μg/m3 (22) 74.0
 
July 30, 2021, midnight 8.8 ppb (9) 0.7 ppb (1) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 63.0 ppb (78) 0.1 ppb (2) N/A 5.5 μg/m3 (23) 78.0
 
July 29, 2021, 11 p.m. 5.5 ppb (6) 0.6 ppb (1) N/A 5.0 ppb (5) N/A 2.0 ppb (3) 68.0 ppb (94) 0.1 ppb (2) N/A 6.3 μg/m3 (27) 94.0
 
July 29, 2021, 10 p.m. 3.8 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 71.0 ppb (101) 0.0 ppb (0) N/A 6.8 μg/m3 (29) 101.0
 
July 29, 2021, 9 p.m. 3.3 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 70.0 ppb (100) 0.1 ppb (2) N/A 6.1 μg/m3 (26) 100.0
 
July 29, 2021, 8 p.m. 4.2 ppb (4) 0.7 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 70.0 ppb (100) 0.0 ppb (0) N/A 6.0 μg/m3 (25) 100.0
 
July 29, 2021, 7 p.m. 4.7 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 69.0 ppb (97) 0.0 ppb (0) N/A 6.6 μg/m3 (28) 97.0
 
July 29, 2021, 6 p.m. 7.6 ppb (8) 1.3 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 68.0 ppb (94) 0.1 ppb (2) N/A 7.7 μg/m3 (33) 94.0
 
July 29, 2021, 5 p.m. 10.6 ppb (10) 1.9 ppb (2) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 61.0 ppb (71) 0.1 ppb (2) N/A 7.8 μg/m3 (33) 71.0
 
July 29, 2021, 4 p.m. 12.7 ppb (12) 2.7 ppb (3) N/A 10.0 ppb (10) N/A 2.0 ppb (3) 56.0 ppb (55) 0.1 ppb (2) N/A 7.6 μg/m3 (32) 55.0
 
July 29, 2021, 3 p.m. 21.1 ppb (20) 5.0 ppb (5) N/A 16.0 ppb (16) N/A 1.0 ppb (2) 42.0 ppb (39) 0.1 ppb (2) N/A 8.8 μg/m3 (37) 39.0
 
July 29, 2021, 2 p.m. 24.0 ppb (23) 4.7 ppb (5) N/A 19.0 ppb (18) N/A 1.0 ppb (2) 25.0 ppb (24) 0.2 ppb (3) N/A 10.7 μg/m3 (45) 45.0
 
July 29, 2021, 1 p.m. 17.8 ppb (17) 2.2 ppb (3) N/A 16.0 ppb (16) N/A 1.0 ppb (2) 27.0 ppb (25) 0.1 ppb (2) N/A 8.3 μg/m3 (35) 35.0
 
July 29, 2021, noon 11.2 ppb (11) 0.5 ppb (1) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 30.0 ppb (28) 0.1 ppb (2) N/A 7.0 μg/m3 (30) 30.0
 
July 29, 2021, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 34.0 ppb (32) 0.1 ppb (2) N/A 7.1 μg/m3 (30) 32.0
 
July 29, 2021, 10 a.m. 7.9 ppb (8) 0.3 ppb (1) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 37.0 ppb (35) 0.0 ppb (0) N/A 6.8 μg/m3 (29) 35.0
 
July 29, 2021, 9 a.m. 6.9 ppb (7) 0.2 ppb (1) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 42.0 ppb (39) 0.1 ppb (2) N/A 6.2 μg/m3 (26) 39.0
 
July 29, 2021, 8 a.m. 5.1 ppb (5) 0.2 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 43.0 ppb (40) 0.0 ppb (0) N/A 7.0 μg/m3 (30) 40.0
 
July 29, 2021, 7 a.m. 4.2 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 47.0 ppb (44) 0.1 ppb (2) N/A 6.7 μg/m3 (28) 44.0
 
July 29, 2021, 6 a.m. 3.2 ppb (4) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 53.0 ppb (50) 0.0 ppb (0) N/A 6.4 μg/m3 (27) 50.0
 
July 29, 2021, 5 a.m. 3.0 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 56.0 ppb (55) 0.0 ppb (0) N/A 8.9 μg/m3 (38) 55.0
 
July 29, 2021, 4 a.m. 5.3 ppb (5) 0.2 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 56.0 ppb (55) 0.0 ppb (0) N/A 7.2 μg/m3 (31) 55.0
 
July 29, 2021, 3 a.m. 4.3 ppb (5) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 59.0 ppb (65) 0.0 ppb (0) N/A 6.0 μg/m3 (25) 65.0
 
July 29, 2021, 2 a.m. 2.8 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 61.0 ppb (71) 0.0 ppb (0) N/A 5.0 μg/m3 (21) 71.0
 
July 29, 2021, 1 a.m. 3.1 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 64.0 ppb (81) 0.0 ppb (0) N/A 4.2 μg/m3 (18) 81.0
 
July 29, 2021, midnight 3.1 ppb (3) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 66.0 ppb (87) 0.0 ppb (0) N/A 4.6 μg/m3 (20) 87.0
 
July 28, 2021, 11 p.m. 3.8 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 62.0 ppb (74) 0.0 ppb (0) N/A 6.8 μg/m3 (29) 74.0
 
July 28, 2021, 10 p.m. 4.3 ppb (5) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 65.0 ppb (84) 0.0 ppb (0) N/A 10.4 μg/m3 (44) 84.0
 
July 28, 2021, 9 p.m. 2.9 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 67.0 ppb (91) 0.0 ppb (0) N/A 10.9 μg/m3 (46) 91.0
 
July 28, 2021, 8 p.m. 2.5 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 65.0 ppb (84) 0.0 ppb (0) N/A 10.1 μg/m3 (43) 84.0
 
July 28, 2021, 7 p.m. 3.9 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 64.0 ppb (81) 0.0 ppb (0) N/A 8.7 μg/m3 (37) 81.0
 
July 28, 2021, 6 p.m. 6.2 ppb (6) 1.3 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 63.0 ppb (78) 0.0 ppb (0) N/A 8.2 μg/m3 (35) 78.0
 
July 28, 2021, 5 p.m. 7.2 ppb (7) 1.5 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 59.0 ppb (65) 0.0 ppb (0) N/A 9.1 μg/m3 (38) 65.0
 
July 28, 2021, 4 p.m. 11.0 ppb (11) 2.2 ppb (3) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 50.0 ppb (47) 0.1 ppb (2) N/A 13.8 μg/m3 (55) 55.0
 
July 28, 2021, 3 p.m. 18.0 ppb (17) 3.4 ppb (4) N/A 15.0 ppb (15) N/A 1.0 ppb (2) 38.0 ppb (36) 0.1 ppb (2) N/A 11.6 μg/m3 (49) 49.0
 
July 28, 2021, 2 p.m. 22.4 ppb (22) 4.8 ppb (5) N/A 18.0 ppb (17) N/A 1.0 ppb (2) 30.0 ppb (28) 0.2 ppb (3) N/A 12.8 μg/m3 (53) 53.0
 
July 28, 2021, 1 p.m. 27.9 ppb (27) 5.1 ppb (5) N/A 23.0 ppb (22) N/A 1.0 ppb (2) 23.0 ppb (22) 0.2 ppb (3) N/A 10.2 μg/m3 (43) 43.0
 
July 28, 2021, noon 23.7 ppb (23) 2.0 ppb (2) N/A 22.0 ppb (21) N/A 1.0 ppb (2) 20.0 ppb (19) 0.2 ppb (3) N/A 8.5 μg/m3 (36) 36.0
 
July 28, 2021, 11 a.m. 8.2 ppb (8) 0.2 ppb (1) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 39.0 ppb (37) 0.1 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
July 28, 2021, 10 a.m. 6.4 ppb (7) 0.2 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 41.0 ppb (38) 0.1 ppb (2) N/A 11.8 μg/m3 (50) 50.0
 
July 28, 2021, 9 a.m. 9.0 ppb (9) 0.2 ppb (1) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 37.0 ppb (35) 0.1 ppb (2) N/A 10.9 μg/m3 (46) 46.0
 
July 28, 2021, 8 a.m. 9.5 ppb (9) 0.3 ppb (1) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 37.0 ppb (35) 0.1 ppb (2) N/A 5.8 μg/m3 (25) 35.0
 
July 28, 2021, 7 a.m. 11.4 ppb (11) 0.2 ppb (1) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 39.0 ppb (37) 0.1 ppb (2) N/A 8.1 μg/m3 (34) 37.0
 
July 28, 2021, 6 a.m. 7.7 ppb (8) 0.2 ppb (1) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 45.0 ppb (42) 0.1 ppb (2) N/A 13.3 μg/m3 (54) 54.0
 
July 28, 2021, 5 a.m. 10.9 ppb (11) 0.2 ppb (1) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 42.0 ppb (39) 0.1 ppb (2) N/A 7.6 μg/m3 (32) 39.0
 
July 28, 2021, 4 a.m. 11.3 ppb (11) 0.2 ppb (1) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 43.0 ppb (40) 0.1 ppb (2) N/A 4.7 μg/m3 (20) 40.0
 
July 28, 2021, 3 a.m. 8.8 ppb (9) 0.2 ppb (1) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 51.0 ppb (48) 0.1 ppb (2) N/A 4.1 μg/m3 (18) 48.0
 
July 28, 2021, 2 a.m. 8.1 ppb (8) 0.2 ppb (1) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 54.0 ppb (50) 0.0 ppb (0) N/A 4.3 μg/m3 (18) 50.0
 
July 28, 2021, 1 a.m. 4.8 ppb (5) 0.3 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 58.0 ppb (61) 0.0 ppb (0) N/A 3.8 μg/m3 (16) 61.0
 
July 28, 2021, midnight 3.5 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 62.0 ppb (74) 0.0 ppb (0) N/A 3.7 μg/m3 (16) 74.0
 
July 27, 2021, 11 p.m. 6.1 ppb (6) 0.7 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 60.0 ppb (68) 0.1 ppb (2) N/A 4.5 μg/m3 (19) 68.0
 
July 27, 2021, 10 p.m. 6.3 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 60.0 ppb (68) 0.1 ppb (2) N/A 3.4 μg/m3 (15) 68.0
 
July 27, 2021, 9 p.m. 4.9 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 61.0 ppb (71) 0.1 ppb (2) N/A 3.9 μg/m3 (17) 71.0
 
July 27, 2021, 8 p.m. 3.3 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 66.0 ppb (87) 0.0 ppb (0) N/A 3.6 μg/m3 (16) 87.0
 
July 27, 2021, 7 p.m. 3.4 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 65.0 ppb (84) 0.0 ppb (0) N/A 3.5 μg/m3 (15) 84.0
 
July 27, 2021, 6 p.m. 4.6 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 60.0 ppb (68) 0.0 ppb (0) N/A 3.8 μg/m3 (16) 68.0
 
July 27, 2021, 5 p.m. 5.5 ppb (6) 1.1 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 60.0 ppb (68) 0.1 ppb (2) N/A 5.9 μg/m3 (25) 68.0
 
July 27, 2021, 4 p.m. 7.8 ppb (8) 1.6 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 53.0 ppb (50) 0.1 ppb (2) N/A 6.3 μg/m3 (27) 50.0
 
July 27, 2021, 3 p.m. 19.9 ppb (19) 5.5 ppb (6) N/A 14.0 ppb (14) N/A 1.0 ppb (2) 40.0 ppb (38) 0.2 ppb (3) N/A 9.1 μg/m3 (38) 38.0
 
July 27, 2021, 2 p.m. 16.1 ppb (16) 1.7 ppb (2) N/A 14.0 ppb (14) N/A 1.0 ppb (2) 37.0 ppb (35) 0.2 ppb (3) N/A 10.2 μg/m3 (43) 43.0
 
July 27, 2021, 1 p.m. 13.0 ppb (13) 0.7 ppb (1) N/A 12.0 ppb (12) N/A 1.0 ppb (2) 36.0 ppb (34) 0.1 ppb (2) N/A 8.9 μg/m3 (38) 38.0
 
July 27, 2021, noon 10.9 ppb (11) 0.3 ppb (1) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 39.0 ppb (37) 0.1 ppb (2) N/A 7.8 μg/m3 (33) 37.0
 
July 27, 2021, 11 a.m. 9.5 ppb (9) 0.2 ppb (1) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 43.0 ppb (40) 0.1 ppb (2) N/A 8.1 μg/m3 (34) 40.0
 
July 27, 2021, 10 a.m. 8.7 ppb (9) 0.2 ppb (1) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 43.0 ppb (40) 0.1 ppb (2) N/A 8.0 μg/m3 (34) 40.0
 
July 27, 2021, 9 a.m. 8.2 ppb (8) 0.1 ppb (1) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 46.0 ppb (43) 0.1 ppb (2) N/A 6.7 μg/m3 (28) 43.0
 
July 27, 2021, 8 a.m. 5.6 ppb (6) 0.2 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 52.0 ppb (49) 0.0 ppb (0) N/A 6.8 μg/m3 (29) 49.0
 
July 27, 2021, 7 a.m. 3.5 ppb (4) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 55.0 ppb (51) 0.0 ppb (0) N/A 6.8 μg/m3 (29) 51.0
 
July 27, 2021, 6 a.m. 4.2 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 55.0 ppb (51) 0.0 ppb (0) N/A 7.0 μg/m3 (30) 51.0
 
July 27, 2021, 5 a.m. 5.7 ppb (6) 0.1 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 58.0 ppb (61) 0.0 ppb (0) N/A 7.6 μg/m3 (32) 61.0
 
July 27, 2021, 4 a.m. 5.1 ppb (5) 0.1 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 60.0 ppb (68) 0.0 ppb (0) N/A 8.6 μg/m3 (36) 68.0
 
July 27, 2021, 3 a.m. 5.3 ppb (5) 0.1 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 60.0 ppb (68) 0.0 ppb (0) N/A 9.0 μg/m3 (38) 68.0
 
July 27, 2021, 2 a.m. 5.1 ppb (5) 0.1 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 63.0 ppb (78) 0.0 ppb (0) N/A 11.3 μg/m3 (48) 78.0
 
July 27, 2021, 1 a.m. 7.0 ppb (7) 0.2 ppb (1) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 71.0 ppb (101) 0.1 ppb (2) N/A 16.7 μg/m3 (61) 101.0
 
July 27, 2021, midnight 6.4 ppb (7) 0.4 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 73.0 ppb (103) 0.0 ppb (0) N/A 16.7 μg/m3 (61) 103.0
 
July 26, 2021, 11 p.m. 4.5 ppb (5) 0.4 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 93.0 ppb (113) 0.1 ppb (2) N/A 24.3 μg/m3 (77) 113.0
 
July 26, 2021, 10 p.m. 4.2 ppb (4) 0.3 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 99.0 ppb (116) 0.2 ppb (3) N/A 31.9 μg/m3 (93) 116.0
 
July 26, 2021, 9 p.m. 6.2 ppb (6) 0.6 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 91.0 ppb (112) 0.2 ppb (3) N/A 27.4 μg/m3 (84) 112.0
 
July 26, 2021, 8 p.m. 4.4 ppb (5) 0.5 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 86.0 ppb (109) 0.2 ppb (3) N/A 25.3 μg/m3 (79) 109.0
 
July 26, 2021, 7 p.m. 4.9 ppb (5) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 82.0 ppb (107) 0.2 ppb (3) N/A 18.5 μg/m3 (65) 107.0
 
July 26, 2021, 6 p.m. 11.0 ppb (11) 1.4 ppb (2) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 81.0 ppb (107) 0.2 ppb (3) N/A 27.6 μg/m3 (84) 107.0
 
July 26, 2021, 5 p.m. 30.7 ppb (29) 5.6 ppb (6) N/A 25.0 ppb (24) N/A 2.0 ppb (3) 60.0 ppb (68) 0.3 ppb (4) N/A 33.6 μg/m3 (97) 97.0
 
July 26, 2021, 4 p.m. 33.2 ppb (32) 6.6 ppb (7) N/A 27.0 ppb (26) N/A 2.0 ppb (3) 47.0 ppb (44) 0.4 ppb (5) N/A 36.1 μg/m3 (103) 103.0
 
July 26, 2021, 3 p.m. 36.2 ppb (35) 7.7 ppb (8) N/A 28.0 ppb (27) N/A 1.0 ppb (2) 36.0 ppb (34) 0.4 ppb (5) N/A 37.6 μg/m3 (107) 107.0
 
July 26, 2021, 2 p.m. 45.4 ppb (43) 10.2 ppb (10) N/A 35.0 ppb (34) N/A 1.0 ppb (2) 21.0 ppb (20) 0.6 ppb (7) N/A 41.3 μg/m3 (116) 116.0
 
July 26, 2021, 1 p.m. 23.8 ppb (23) 1.8 ppb (2) N/A 22.0 ppb (21) N/A 1.0 ppb (2) 30.0 ppb (28) 0.3 ppb (4) N/A 38.6 μg/m3 (109) 109.0
 
July 26, 2021, noon 34.8 ppb (33) 2.6 ppb (3) N/A 32.0 ppb (31) N/A 1.0 ppb (2) 17.0 ppb (16) 0.3 ppb (4) N/A 39.0 μg/m3 (110) 110.0
 
July 26, 2021, 11 a.m. 31.3 ppb (30) 1.5 ppb (2) N/A 30.0 ppb (29) N/A N/A 21.0 ppb (20) 0.3 ppb (4) N/A 37.4 μg/m3 (106) 106.0
 
July 26, 2021, 10 a.m. 17.7 ppb (17) 0.4 ppb (1) N/A 17.0 ppb (17) N/A 1.0 ppb (2) 30.0 ppb (28) 0.1 ppb (2) N/A 28.8 μg/m3 (87) 87.0
 
July 26, 2021, 9 a.m. 30.9 ppb (30) 1.8 ppb (2) N/A 29.0 ppb (28) N/A 1.0 ppb (2) 20.0 ppb (19) 0.2 ppb (3) N/A 41.2 μg/m3 (116) 116.0
 
July 26, 2021, 8 a.m. 24.6 ppb (24) 0.8 ppb (1) N/A 24.0 ppb (23) N/A 1.0 ppb (2) 24.0 ppb (23) 0.2 ppb (3) N/A 32.4 μg/m3 (94) 94.0
 
July 26, 2021, 7 a.m. 34.3 ppb (33) 1.7 ppb (2) N/A 33.0 ppb (32) N/A 1.0 ppb (2) 21.0 ppb (20) 0.2 ppb (3) N/A 28.5 μg/m3 (86) 86.0
 
July 26, 2021, 6 a.m. 38.8 ppb (37) 1.3 ppb (2) N/A 37.0 ppb (35) N/A 2.0 ppb (3) 14.0 ppb (13) 0.3 ppb (4) N/A 34.8 μg/m3 (99) 99.0
 
July 26, 2021, 5 a.m. 41.6 ppb (40) 2.5 ppb (3) N/A 39.0 ppb (37) N/A 1.0 ppb (2) 14.0 ppb (13) 0.4 ppb (5) N/A 37.8 μg/m3 (107) 107.0
 
July 26, 2021, 4 a.m. 32.7 ppb (31) 0.4 ppb (1) N/A 32.0 ppb (31) N/A 1.0 ppb (2) 23.0 ppb (22) 0.4 ppb (5) N/A 40.6 μg/m3 (114) 114.0
 
July 26, 2021, 3 a.m. 26.4 ppb (25) 0.3 ppb (1) N/A 26.0 ppb (25) N/A 1.0 ppb (2) 31.0 ppb (29) 0.4 ppb (5) N/A 32.4 μg/m3 (94) 94.0
 
July 26, 2021, 2 a.m. 16.9 ppb (16) 0.3 ppb (1) N/A 17.0 ppb (17) N/A 1.0 ppb (2) 47.0 ppb (44) 0.2 ppb (3) N/A 22.8 μg/m3 (74) 74.0
 
July 26, 2021, 1 a.m. 4.6 ppb (5) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 67.0 ppb (91) 0.1 ppb (2) N/A 31.4 μg/m3 (92) 92.0
 
July 26, 2021, midnight 4.5 ppb (5) 0.3 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 69.0 ppb (97) 0.1 ppb (2) N/A 33.1 μg/m3 (96) 97.0
 
July 25, 2021, 11 p.m. 3.0 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 67.0 ppb (91) 0.1 ppb (2) N/A 29.8 μg/m3 (89) 91.0
 
July 25, 2021, 10 p.m. 3.4 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 70.0 ppb (100) 0.1 ppb (2) N/A 36.5 μg/m3 (104) 104.0
 
July 25, 2021, 9 p.m. 4.2 ppb (4) 0.5 ppb (1) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 69.0 ppb (97) 0.1 ppb (2) N/A 41.7 μg/m3 (117) 117.0
 
July 25, 2021, 8 p.m. 4.2 ppb (4) 0.5 ppb (1) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 69.0 ppb (97) 0.1 ppb (2) N/A 50.0 μg/m3 (137) 137.0
 
July 25, 2021, 7 p.m. 4.7 ppb (5) 0.5 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 78.0 ppb (105) 0.1 ppb (2) N/A 56.0 μg/m3 (152) 152.0
 
July 25, 2021, 6 p.m. 5.4 ppb (6) 0.5 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 80.0 ppb (106) 0.1 ppb (2) N/A 44.1 μg/m3 (123) 123.0
 
July 25, 2021, 5 p.m. 7.5 ppb (8) 0.9 ppb (1) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 69.0 ppb (97) 0.1 ppb (2) N/A 32.4 μg/m3 (94) 97.0
 
July 25, 2021, 4 p.m. 12.0 ppb (12) 2.0 ppb (2) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 56.0 ppb (55) 0.2 ppb (3) N/A 35.5 μg/m3 (101) 101.0
 
July 25, 2021, 3 p.m. 13.6 ppb (13) 2.2 ppb (3) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 45.0 ppb (42) 0.2 ppb (3) N/A 37.9 μg/m3 (107) 107.0
 
July 25, 2021, 2 p.m. 22.8 ppb (22) 4.2 ppb (4) N/A 19.0 ppb (18) N/A 1.0 ppb (2) 32.0 ppb (30) 0.2 ppb (3) N/A 39.7 μg/m3 (112) 112.0
 
July 25, 2021, 1 p.m. 29.3 ppb (28) 4.4 ppb (5) N/A 25.0 ppb (24) N/A 1.0 ppb (2) 17.0 ppb (16) 0.2 ppb (3) N/A 45.6 μg/m3 (126) 126.0
 
July 25, 2021, noon 30.8 ppb (30) 2.1 ppb (2) N/A 29.0 ppb (28) N/A 1.0 ppb (2) 21.0 ppb (20) 0.2 ppb (3) N/A 43.5 μg/m3 (121) 121.0
 
July 25, 2021, 11 a.m. 28.6 ppb (27) 1.1 ppb (2) N/A 27.0 ppb (26) N/A 1.0 ppb (2) 17.0 ppb (16) N/A N/A 50.7 μg/m3 (139) 139.0
 
July 25, 2021, 10 a.m. 27.9 ppb (27) 1.6 ppb (2) N/A 26.0 ppb (25) N/A 1.0 ppb (2) 25.0 ppb (24) 0.2 ppb (3) N/A 40.8 μg/m3 (115) 115.0
 
July 25, 2021, 9 a.m. 52.2 ppb (50) 9.1 ppb (9) N/A 43.0 ppb (41) N/A 2.0 ppb (3) 4.0 ppb (4) 0.6 ppb (7) N/A 61.4 μg/m3 (155) 155.0
 
July 25, 2021, 8 a.m. 54.5 ppb (52) 9.6 ppb (10) N/A 45.0 ppb (43) N/A 2.0 ppb (3) 2.0 ppb (2) 0.6 ppb (7) N/A 65.6 μg/m3 (157) 157.0
 
July 25, 2021, 7 a.m. 43.6 ppb (42) 2.8 ppb (3) N/A 41.0 ppb (39) N/A 2.0 ppb (3) 8.0 ppb (8) 0.5 ppb (6) N/A 62.3 μg/m3 (155) 155.0
 
July 25, 2021, 6 a.m. 42.6 ppb (41) 1.6 ppb (2) N/A 41.0 ppb (39) N/A 1.0 ppb (2) 13.0 ppb (13) 0.5 ppb (6) N/A 49.8 μg/m3 (137) 137.0
 
July 25, 2021, 5 a.m. 44.9 ppb (43) 4.0 ppb (4) N/A 41.0 ppb (39) N/A 3.0 ppb (5) 15.0 ppb (14) 0.5 ppb (6) N/A 60.2 μg/m3 (154) 154.0
 
July 25, 2021, 4 a.m. 31.7 ppb (30) 0.4 ppb (1) N/A 31.0 ppb (30) N/A 1.0 ppb (2) 32.0 ppb (30) 0.2 ppb (3) N/A 29.4 μg/m3 (88) 88.0
 
July 25, 2021, 3 a.m. 15.4 ppb (15) 0.2 ppb (1) N/A 15.0 ppb (15) N/A 1.0 ppb (2) 50.0 ppb (47) 0.2 ppb (3) N/A 27.1 μg/m3 (83) 83.0
 
July 25, 2021, 2 a.m. 7.2 ppb (7) 0.2 ppb (1) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 64.0 ppb (81) 0.1 ppb (2) N/A 23.5 μg/m3 (75) 81.0