ID: 864

AQSQID: 490494001

Site Name: Lindon

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

Updated: July 31, 2021, 5:57 a.m.

Location: Lindon (Battle Creek), UT

Reporting: True, Located: True

Current AQI: 23.0

Lindon (Battle Creek) UT, US: 40.3414, -111.7136

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 24, 2021, 4 a.m. 9.6 ppb (10) 0.2 ppb (1) N/A 10.0 ppb (10) N/A N/A 43.0 ppb (40) 0.4 ppb (5) N/A 9.8 μg/m3 (41) 41.0
 
July 24, 2021, 3 a.m. 7.9 ppb (8) 0.1 ppb (1) N/A 8.0 ppb (8) N/A N/A 48.0 ppb (45) 0.4 ppb (5) N/A 8.2 μg/m3 (35) 45.0
 
July 24, 2021, 2 a.m. 8.9 ppb (9) 0.2 ppb (1) N/A 9.0 ppb (9) N/A N/A 51.0 ppb (48) 0.4 ppb (5) N/A 6.7 μg/m3 (28) 48.0
 
July 24, 2021, 1 a.m. 5.0 ppb (5) 0.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 64.0 ppb (81) 0.4 ppb (5) N/A 6.4 μg/m3 (27) 81.0
 
July 24, 2021, midnight 2.8 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 70.0 ppb (100) 0.3 ppb (4) N/A 6.8 μg/m3 (29) 100.0
 
July 23, 2021, 11 p.m. 3.0 ppb (3) 0.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 61.0 ppb (71) 0.3 ppb (4) N/A 6.5 μg/m3 (28) 71.0
 
July 23, 2021, 10 p.m. 3.0 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 69.0 ppb (97) 0.3 ppb (4) N/A 7.0 μg/m3 (30) 97.0
 
July 23, 2021, 9 p.m. 4.5 ppb (5) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 74.0 ppb (103) 0.4 ppb (5) N/A 7.8 μg/m3 (33) 103.0
 
July 23, 2021, 8 p.m. 4.3 ppb (5) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 70.0 ppb (100) 0.3 ppb (4) N/A 7.3 μg/m3 (31) 100.0
 
July 23, 2021, 7 p.m. 4.6 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 67.0 ppb (91) 0.3 ppb (4) N/A 7.0 μg/m3 (30) 91.0
 
July 23, 2021, 6 p.m. 5.7 ppb (6) 1.1 ppb (2) N/A 5.0 ppb (5) N/A N/A 60.0 ppb (68) 0.3 ppb (4) N/A 7.1 μg/m3 (30) 68.0
 
July 23, 2021, 5 p.m. 5.1 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 57.0 ppb (58) 0.3 ppb (4) N/A 7.0 μg/m3 (30) 58.0
 
July 23, 2021, 4 p.m. 9.1 ppb (9) 2.2 ppb (3) N/A 7.0 ppb (7) N/A N/A 43.0 ppb (40) 0.4 ppb (5) N/A 7.2 μg/m3 (31) 40.0
 
July 23, 2021, 3 p.m. 8.7 ppb (9) 1.9 ppb (2) N/A 7.0 ppb (7) N/A N/A 36.0 ppb (34) 0.4 ppb (5) N/A 6.7 μg/m3 (28) 34.0
 
July 23, 2021, 2 p.m. 10.1 ppb (10) 2.5 ppb (3) N/A 8.0 ppb (8) N/A N/A 30.0 ppb (28) 0.4 ppb (5) N/A 6.5 μg/m3 (28) 28.0
 
July 23, 2021, 1 p.m. 11.0 ppb (11) 2.1 ppb (2) N/A 9.0 ppb (9) N/A N/A 19.0 ppb (18) 0.3 ppb (4) N/A 6.3 μg/m3 (27) 27.0
 
July 23, 2021, noon 9.4 ppb (9) 0.6 ppb (1) N/A 9.0 ppb (9) N/A N/A 17.0 ppb (16) 0.3 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
July 23, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) 0.3 ppb (4) N/A 5.2 μg/m3 (22) 22.0
 
July 23, 2021, 10 a.m. 8.5 ppb (9) 0.6 ppb (1) N/A 8.0 ppb (8) N/A N/A 19.0 ppb (18) 0.3 ppb (4) N/A 4.6 μg/m3 (20) 20.0
 
July 23, 2021, 9 a.m. 8.4 ppb (8) 0.5 ppb (1) N/A 8.0 ppb (8) N/A N/A 21.0 ppb (20) 0.3 ppb (4) N/A 4.9 μg/m3 (21) 21.0
 
July 23, 2021, 8 a.m. 10.1 ppb (10) 0.7 ppb (1) N/A 9.0 ppb (9) N/A N/A 18.0 ppb (17) 0.3 ppb (4) N/A 4.5 μg/m3 (19) 19.0
 
July 23, 2021, 7 a.m. 8.5 ppb (9) 0.5 ppb (1) N/A 8.0 ppb (8) N/A N/A 21.0 ppb (20) 0.3 ppb (4) N/A 4.7 μg/m3 (20) 20.0
 
July 23, 2021, 6 a.m. 9.0 ppb (9) 0.5 ppb (1) N/A 9.0 ppb (9) N/A N/A 26.0 ppb (25) 0.3 ppb (4) N/A 6.5 μg/m3 (28) 28.0
 
July 23, 2021, 5 a.m. 8.2 ppb (8) 0.3 ppb (1) N/A 8.0 ppb (8) N/A N/A 30.0 ppb (28) 0.3 ppb (4) N/A 6.3 μg/m3 (27) 28.0
 
July 23, 2021, 4 a.m. 4.8 ppb (5) 0.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 41.0 ppb (38) 0.3 ppb (4) N/A 5.9 μg/m3 (25) 38.0
 
July 23, 2021, 3 a.m. 3.4 ppb (4) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 45.0 ppb (42) 0.3 ppb (4) N/A 5.2 μg/m3 (22) 42.0
 
July 23, 2021, 2 a.m. 3.1 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 43.0 ppb (40) 0.3 ppb (4) N/A 4.5 μg/m3 (19) 40.0
 
July 23, 2021, 1 a.m. 2.6 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 52.0 ppb (49) 0.3 ppb (4) N/A 7.4 μg/m3 (31) 49.0
 
July 23, 2021, midnight 4.6 ppb (5) 0.3 ppb (1) N/A 4.0 ppb (4) N/A N/A 54.0 ppb (50) 0.4 ppb (5) N/A 4.3 μg/m3 (18) 50.0
 
July 22, 2021, 11 p.m. 2.0 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 57.0 ppb (58) 0.3 ppb (4) N/A 4.1 μg/m3 (18) 58.0
 
July 22, 2021, 10 p.m. 1.7 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 57.0 ppb (58) 0.3 ppb (4) N/A 4.0 μg/m3 (17) 58.0
 
July 22, 2021, 9 p.m. 2.1 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 58.0 ppb (61) 0.3 ppb (4) N/A 4.3 μg/m3 (18) 61.0
 
July 22, 2021, 8 p.m. 2.0 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 58.0 ppb (61) 0.3 ppb (4) N/A 4.6 μg/m3 (20) 61.0
 
July 22, 2021, 7 p.m. 2.0 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 60.0 ppb (68) 0.3 ppb (4) N/A 4.9 μg/m3 (21) 68.0
 
July 22, 2021, 6 p.m. 2.7 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 60.0 ppb (68) 0.3 ppb (4) N/A 5.0 μg/m3 (21) 68.0
 
July 22, 2021, 5 p.m. 3.5 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 59.0 ppb (65) 0.3 ppb (4) N/A 5.0 μg/m3 (21) 65.0
 
July 22, 2021, 4 p.m. 8.5 ppb (9) 1.3 ppb (2) N/A 7.0 ppb (7) N/A N/A 49.0 ppb (46) 0.4 ppb (5) N/A 5.6 μg/m3 (24) 46.0
 
July 22, 2021, 3 p.m. 7.1 ppb (7) 1.1 ppb (2) N/A 6.0 ppb (6) N/A N/A 44.0 ppb (41) 0.3 ppb (4) N/A 5.2 μg/m3 (22) 41.0
 
July 22, 2021, 2 p.m. 10.8 ppb (11) 2.1 ppb (2) N/A 9.0 ppb (9) N/A N/A 36.0 ppb (34) 0.4 ppb (5) N/A 5.2 μg/m3 (22) 34.0
 
July 22, 2021, 1 p.m. 11.3 ppb (11) 1.1 ppb (2) N/A 10.0 ppb (10) N/A N/A 24.0 ppb (23) 0.3 ppb (4) N/A 5.2 μg/m3 (22) 23.0
 
July 22, 2021, noon 9.3 ppb (9) 0.3 ppb (1) N/A 9.0 ppb (9) N/A N/A 26.0 ppb (25) 0.3 ppb (4) N/A 5.5 μg/m3 (23) 25.0
 
July 22, 2021, 11 a.m. 4.9 ppb (5) 0.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 30.0 ppb (28) 0.3 ppb (4) N/A 5.2 μg/m3 (22) 28.0
 
July 22, 2021, 10 a.m. 2.4 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (40) 0.3 ppb (4) N/A 4.5 μg/m3 (19) 40.0
 
July 22, 2021, 9 a.m. 3.7 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 40.0 ppb (38) 0.3 ppb (4) N/A 4.4 μg/m3 (19) 38.0
 
July 22, 2021, 8 a.m. 5.5 ppb (6) 0.1 ppb (1) N/A 6.0 ppb (6) N/A N/A 39.0 ppb (37) 0.3 ppb (4) N/A 4.6 μg/m3 (20) 37.0
 
July 22, 2021, 7 a.m. 2.8 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 48.0 ppb (45) 0.2 ppb (3) N/A 5.1 μg/m3 (22) 45.0
 
July 22, 2021, 6 a.m. 3.1 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 49.0 ppb (46) 0.3 ppb (4) N/A 5.7 μg/m3 (24) 46.0
 
July 22, 2021, 5 a.m. 4.3 ppb (5) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 47.0 ppb (44) 0.3 ppb (4) N/A 5.4 μg/m3 (23) 44.0
 
July 22, 2021, 4 a.m. 6.1 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A 44.0 ppb (41) 0.3 ppb (4) N/A 5.7 μg/m3 (24) 41.0
 
July 22, 2021, 3 a.m. 4.2 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 50.0 ppb (47) 0.3 ppb (4) N/A 6.1 μg/m3 (26) 47.0
 
July 22, 2021, 2 a.m. 2.9 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 53.0 ppb (50) 0.3 ppb (4) N/A 6.1 μg/m3 (26) 50.0
 
July 22, 2021, 1 a.m. 2.7 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 56.0 ppb (55) 0.3 ppb (4) N/A 6.0 μg/m3 (25) 55.0
 
July 22, 2021, midnight 3.0 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 55.0 ppb (51) 0.3 ppb (4) N/A 5.8 μg/m3 (25) 51.0
 
July 21, 2021, 11 p.m. 5.0 ppb (5) 0.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 54.0 ppb (50) 0.3 ppb (4) N/A 7.6 μg/m3 (32) 50.0
 
July 21, 2021, 10 p.m. 3.2 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 58.0 ppb (61) 0.3 ppb (4) N/A 6.9 μg/m3 (29) 61.0
 
July 21, 2021, 9 p.m. 2.9 ppb (3) 0.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 59.0 ppb (65) 0.3 ppb (4) N/A 7.6 μg/m3 (32) 65.0
 
July 21, 2021, 8 p.m. 2.7 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 59.0 ppb (65) 0.3 ppb (4) N/A 8.3 μg/m3 (35) 65.0
 
July 21, 2021, 7 p.m. 4.1 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 65.0 ppb (84) 0.3 ppb (4) N/A 9.7 μg/m3 (41) 84.0
 
July 21, 2021, 6 p.m. 5.1 ppb (5) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 65.0 ppb (84) 0.3 ppb (4) N/A 10.5 μg/m3 (44) 84.0
 
July 21, 2021, 5 p.m. 4.9 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 57.0 ppb (58) 0.3 ppb (4) N/A 10.5 μg/m3 (44) 58.0
 
July 21, 2021, 4 p.m. 7.2 ppb (7) 1.5 ppb (2) N/A 6.0 ppb (6) N/A N/A 49.0 ppb (46) 0.3 ppb (4) N/A 11.5 μg/m3 (48) 48.0
 
July 21, 2021, 3 p.m. 9.6 ppb (10) 2.2 ppb (3) N/A 8.0 ppb (8) N/A N/A 41.0 ppb (38) 0.4 ppb (5) N/A 13.0 μg/m3 (53) 53.0
 
July 21, 2021, 2 p.m. 7.6 ppb (8) 1.4 ppb (2) N/A 6.0 ppb (6) N/A N/A 37.0 ppb (35) 0.3 ppb (4) N/A 14.0 μg/m3 (55) 55.0
 
July 21, 2021, 1 p.m. 9.0 ppb (9) 1.0 ppb (1) N/A 8.0 ppb (8) N/A N/A 30.0 ppb (28) 0.4 ppb (5) N/A 15.4 μg/m3 (58) 58.0
 
July 21, 2021, noon 4.2 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 33.0 ppb (31) 0.3 ppb (4) N/A 16.1 μg/m3 (60) 60.0
 
July 21, 2021, 11 a.m. 3.8 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 35.0 ppb (33) 0.3 ppb (4) N/A 17.2 μg/m3 (62) 62.0
 
July 21, 2021, 10 a.m. 4.3 ppb (5) 0.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 38.0 ppb (36) 0.3 ppb (4) N/A 12.7 μg/m3 (53) 53.0
 
July 21, 2021, 9 a.m. 5.0 ppb (5) 0.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 36.0 ppb (34) 0.3 ppb (4) N/A 14.4 μg/m3 (56) 56.0
 
July 21, 2021, 8 a.m. 4.1 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (35) 0.3 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
July 21, 2021, 7 a.m. 5.1 ppb (5) 0.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 39.0 ppb (37) 0.3 ppb (4) N/A 6.8 μg/m3 (29) 37.0
 
July 21, 2021, 6 a.m. 6.2 ppb (6) 0.1 ppb (1) N/A 6.0 ppb (6) N/A N/A 34.0 ppb (32) 0.3 ppb (4) N/A 1.2 μg/m3 (5) 32.0
 
July 21, 2021, 5 a.m. 7.5 ppb (8) 0.1 ppb (1) N/A 7.0 ppb (7) N/A N/A 35.0 ppb (33) 0.3 ppb (4) N/A 1.1 μg/m3 (5) 33.0
 
July 21, 2021, 4 a.m. 4.8 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 46.0 ppb (43) 0.3 ppb (4) N/A -1.0 μg/m3 (0) 43.0
 
July 21, 2021, 3 a.m. 5.1 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 49.0 ppb (46) 0.3 ppb (4) N/A -1.1 μg/m3 (0) 46.0
 
July 21, 2021, 2 a.m. 1.7 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 58.0 ppb (61) 0.3 ppb (4) N/A -2.3 μg/m3 (0) 61.0
 
July 21, 2021, 1 a.m. 3.4 ppb (4) 0.2 ppb (1) N/A 3.0 ppb (3) N/A N/A 58.0 ppb (61) 0.3 ppb (4) N/A 1.0 μg/m3 (5) 61.0
 
July 21, 2021, midnight 2.3 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 61.0 ppb (71) 0.3 ppb (4) N/A 0.5 μg/m3 (3) 71.0
 
July 20, 2021, 11 p.m. 2.5 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 59.0 ppb (65) 0.3 ppb (4) N/A 0.2 μg/m3 (1) 65.0
 
July 20, 2021, 10 p.m. 2.1 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 59.0 ppb (65) 0.3 ppb (4) N/A 0.1 μg/m3 (1) 65.0
 
July 20, 2021, 9 p.m. 2.0 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 58.0 ppb (61) 0.3 ppb (4) N/A -0.1 μg/m3 (0) 61.0
 
July 20, 2021, 8 p.m. 2.2 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 61.0 ppb (71) 0.3 ppb (4) N/A -0.2 μg/m3 (0) 71.0
 
July 20, 2021, 7 p.m. 3.2 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 60.0 ppb (68) 0.7 ppb (8) N/A 1.2 μg/m3 (5) 68.0
 
July 20, 2021, 6 p.m. 4.3 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 60.0 ppb (68) 0.3 ppb (4) N/A 2.0 μg/m3 (9) 68.0
 
July 20, 2021, 5 p.m. 5.1 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A 55.0 ppb (51) 0.3 ppb (4) N/A 3.0 μg/m3 (13) 51.0
 
July 20, 2021, 4 p.m. 2.9 ppb (3) 0.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 50.0 ppb (47) 0.3 ppb (4) N/A 1.5 μg/m3 (7) 47.0
 
July 20, 2021, 3 p.m. 6.5 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 38.0 ppb (36) 0.4 ppb (5) N/A 1.7 μg/m3 (8) 36.0
 
July 20, 2021, 2 p.m. 9.3 ppb (9) 1.6 ppb (2) N/A 8.0 ppb (8) N/A N/A 23.0 ppb (22) 0.4 ppb (5) N/A 2.3 μg/m3 (10) 22.0
 
July 20, 2021, 1 p.m. 8.0 ppb (8) 0.9 ppb (1) N/A 7.0 ppb (7) N/A N/A 22.0 ppb (21) 0.3 ppb (4) N/A 2.3 μg/m3 (10) 21.0
 
July 20, 2021, noon 6.4 ppb (7) 0.4 ppb (1) N/A 6.0 ppb (6) N/A N/A 24.0 ppb (23) 0.3 ppb (4) N/A 1.6 μg/m3 (7) 23.0
 
July 20, 2021, 11 a.m. 6.0 ppb (6) 0.4 ppb (1) N/A 6.0 ppb (6) N/A N/A 24.0 ppb (23) 0.3 ppb (4) N/A 0.9 μg/m3 (4) 23.0
 
July 20, 2021, 10 a.m. 5.3 ppb (5) 0.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 27.0 ppb (25) 0.3 ppb (4) N/A 0.0 μg/m3 (0) 25.0
 
July 20, 2021, 9 a.m. 5.9 ppb (6) 0.5 ppb (1) N/A 5.0 ppb (5) N/A N/A 24.0 ppb (23) 0.3 ppb (4) N/A 0.1 μg/m3 (1) 23.0
 
July 20, 2021, 8 a.m. 5.8 ppb (6) 0.5 ppb (1) N/A 5.0 ppb (5) N/A N/A 25.0 ppb (24) 0.3 ppb (4) N/A 0.7 μg/m3 (3) 24.0
 
July 20, 2021, 7 a.m. 4.8 ppb (5) 0.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 33.0 ppb (31) 0.3 ppb (4) N/A 3.4 μg/m3 (15) 31.0
 
July 20, 2021, 6 a.m. 3.2 ppb (4) 0.2 ppb (1) N/A 3.0 ppb (3) N/A N/A 38.0 ppb (36) 0.3 ppb (4) N/A 6.5 μg/m3 (28) 36.0
 
July 20, 2021, 5 a.m. 3.3 ppb (4) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 45.0 ppb (42) 0.3 ppb (4) N/A 8.8 μg/m3 (37) 42.0
 
July 20, 2021, 4 a.m. 5.8 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A 48.0 ppb (45) 0.3 ppb (4) N/A 10.7 μg/m3 (45) 45.0
 
July 20, 2021, 3 a.m. 9.1 ppb (9) 0.1 ppb (1) N/A 9.0 ppb (9) N/A N/A 44.0 ppb (41) 0.4 ppb (5) N/A 12.9 μg/m3 (53) 53.0
 
July 20, 2021, 2 a.m. 9.2 ppb (9) 0.1 ppb (1) N/A 9.0 ppb (9) N/A N/A 44.0 ppb (41) 0.4 ppb (5) N/A 14.5 μg/m3 (57) 57.0
 
July 20, 2021, 1 a.m. 5.8 ppb (6) 0.3 ppb (1) N/A 6.0 ppb (6) N/A N/A 50.0 ppb (47) 0.4 ppb (5) N/A 20.9 μg/m3 (70) 70.0
 
July 20, 2021, midnight 4.6 ppb (5) 0.4 ppb (1) N/A 4.0 ppb (4) N/A N/A 50.0 ppb (47) 0.3 ppb (4) N/A 14.1 μg/m3 (56) 56.0
 
July 19, 2021, 11 p.m. 4.3 ppb (5) 0.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 52.0 ppb (49) 0.3 ppb (4) N/A 17.2 μg/m3 (62) 62.0
 
July 19, 2021, 10 p.m. 4.7 ppb (5) 0.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 55.0 ppb (51) 0.3 ppb (4) N/A 12.5 μg/m3 (52) 52.0
 
July 19, 2021, 9 p.m. 2.2 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 68.0 ppb (94) 0.3 ppb (4) N/A 8.6 μg/m3 (36) 94.0
 
July 19, 2021, 8 p.m. 2.7 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A N/A 67.0 ppb (91) 0.3 ppb (4) N/A 8.9 μg/m3 (38) 91.0
 
July 19, 2021, 7 p.m. 3.0 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 65.0 ppb (84) 0.3 ppb (4) N/A 9.6 μg/m3 (40) 84.0
 
July 19, 2021, 6 p.m. 4.4 ppb (5) 0.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 60.0 ppb (68) 0.3 ppb (4) N/A 9.6 μg/m3 (40) 68.0
 
July 19, 2021, 5 p.m. 10.5 ppb (10) 1.7 ppb (2) N/A 9.0 ppb (9) N/A N/A 49.0 ppb (46) 0.4 ppb (5) N/A 15.9 μg/m3 (59) 59.0
 
July 19, 2021, 4 p.m. 19.0 ppb (18) 3.8 ppb (4) N/A 15.0 ppb (15) N/A N/A 37.0 ppb (35) 0.4 ppb (5) N/A 19.0 μg/m3 (66) 66.0
 
July 19, 2021, 3 p.m. 17.7 ppb (17) 3.1 ppb (3) N/A 15.0 ppb (15) N/A N/A 33.0 ppb (31) 0.4 ppb (5) N/A 20.5 μg/m3 (69) 69.0
 
July 19, 2021, 2 p.m. 8.9 ppb (9) 1.1 ppb (2) N/A 8.0 ppb (8) N/A N/A 42.0 ppb (39) 0.4 ppb (5) N/A 9.6 μg/m3 (40) 40.0
 
July 19, 2021, 1 p.m. 8.1 ppb (8) 0.7 ppb (1) N/A 7.0 ppb (7) N/A N/A 36.0 ppb (34) 0.3 ppb (4) N/A 9.5 μg/m3 (40) 40.0
 
July 19, 2021, noon 3.6 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (38) 0.3 ppb (4) N/A 10.4 μg/m3 (44) 44.0
 
July 19, 2021, 11 a.m. 3.7 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 35.0 ppb (33) N/A N/A 8.0 μg/m3 (34) 34.0
 
July 19, 2021, 10 a.m. 3.1 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 39.0 ppb (37) 0.2 ppb (3) N/A 10.8 μg/m3 (46) 46.0
 
July 19, 2021, 9 a.m. 1.9 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 51.0 ppb (48) 0.2 ppb (3) N/A 16.8 μg/m3 (61) 61.0
 
July 19, 2021, 8 a.m. 1.6 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 53.0 ppb (50) 0.2 ppb (3) N/A 8.3 μg/m3 (35) 50.0
 
July 19, 2021, 7 a.m. 2.2 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 51.0 ppb (48) 0.2 ppb (3) N/A 28.5 μg/m3 (86) 86.0
 
July 19, 2021, 6 a.m. 2.8 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 50.0 ppb (47) 0.3 ppb (4) N/A 14.2 μg/m3 (56) 56.0
 
July 19, 2021, 5 a.m. 2.3 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 52.0 ppb (49) 0.3 ppb (4) N/A 13.4 μg/m3 (54) 54.0
 
July 19, 2021, 4 a.m. 5.2 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 51.0 ppb (48) 0.3 ppb (4) N/A 9.7 μg/m3 (41) 48.0
 
July 19, 2021, 3 a.m. 8.6 ppb (9) 0.1 ppb (1) N/A 9.0 ppb (9) N/A N/A 40.0 ppb (38) 0.4 ppb (5) N/A 13.4 μg/m3 (54) 54.0
 
July 19, 2021, 2 a.m. 4.8 ppb (5) 0.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 49.0 ppb (46) 0.4 ppb (5) N/A 17.8 μg/m3 (63) 63.0
 
July 19, 2021, 1 a.m. 2.6 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 64.0 ppb (81) 0.3 ppb (4) N/A 7.0 μg/m3 (30) 81.0
 
July 19, 2021, midnight 2.1 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 67.0 ppb (91) 0.3 ppb (4) N/A 7.2 μg/m3 (31) 91.0
 
July 18, 2021, 11 p.m. 1.8 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 65.0 ppb (84) 0.3 ppb (4) N/A 7.5 μg/m3 (32) 84.0
 
July 18, 2021, 10 p.m. 1.6 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 67.0 ppb (91) 0.3 ppb (4) N/A 7.5 μg/m3 (32) 91.0
 
July 18, 2021, 9 p.m. 1.5 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 65.0 ppb (84) 0.3 ppb (4) N/A 7.4 μg/m3 (31) 84.0
 
July 18, 2021, 8 p.m. 1.9 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 67.0 ppb (91) 0.3 ppb (4) N/A 8.5 μg/m3 (36) 91.0
 
July 18, 2021, 7 p.m. 3.5 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 73.0 ppb (103) 0.3 ppb (4) N/A 9.4 μg/m3 (40) 103.0
 
July 18, 2021, 6 p.m. 4.2 ppb (4) 0.4 ppb (1) N/A 4.0 ppb (4) N/A N/A 73.0 ppb (103) 0.3 ppb (4) N/A 10.9 μg/m3 (46) 103.0
 
July 18, 2021, 5 p.m. 3.5 ppb (4) 0.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 64.0 ppb (81) 0.3 ppb (4) N/A 10.4 μg/m3 (44) 81.0
 
July 18, 2021, 4 p.m. 3.6 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 57.0 ppb (58) 0.3 ppb (4) N/A 10.8 μg/m3 (46) 58.0
 
July 18, 2021, 3 p.m. 3.7 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 50.0 ppb (47) 0.3 ppb (4) N/A 11.0 μg/m3 (46) 47.0
 
July 18, 2021, 2 p.m. 4.3 ppb (5) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (34) 0.3 ppb (4) N/A 13.1 μg/m3 (54) 54.0
 
July 18, 2021, 1 p.m. 5.5 ppb (6) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 27.0 ppb (25) 0.3 ppb (4) N/A 16.5 μg/m3 (61) 61.0
 
July 18, 2021, noon 4.9 ppb (5) 0.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 29.0 ppb (27) 0.3 ppb (4) N/A 14.5 μg/m3 (57) 57.0
 
July 18, 2021, 11 a.m. 5.0 ppb (5) 0.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 29.0 ppb (27) 0.3 ppb (4) N/A 14.7 μg/m3 (57) 57.0
 
July 18, 2021, 10 a.m. 4.5 ppb (5) 0.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 30.0 ppb (28) 0.3 ppb (4) N/A 14.6 μg/m3 (57) 57.0
 
July 18, 2021, 9 a.m. 4.7 ppb (5) 0.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 30.0 ppb (28) 0.3 ppb (4) N/A 18.2 μg/m3 (64) 64.0
 
July 18, 2021, 8 a.m. 4.5 ppb (5) 0.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 35.0 ppb (33) 0.3 ppb (4) N/A 17.3 μg/m3 (62) 62.0
 
July 18, 2021, 7 a.m. 5.8 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A 33.0 ppb (31) 0.3 ppb (4) N/A 13.7 μg/m3 (55) 55.0
 
July 18, 2021, 6 a.m. 6.5 ppb (7) 0.1 ppb (1) N/A 7.0 ppb (7) N/A N/A 36.0 ppb (34) 0.3 ppb (4) N/A 13.2 μg/m3 (54) 54.0
 
July 18, 2021, 5 a.m. 8.1 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (8) N/A N/A 34.0 ppb (32) 0.3 ppb (4) N/A 10.6 μg/m3 (45) 45.0
 
July 18, 2021, 4 a.m. 10.7 ppb (11) 0.0 ppb (0) N/A 11.0 ppb (11) N/A N/A 33.0 ppb (31) 0.4 ppb (5) N/A 10.5 μg/m3 (44) 44.0
 
July 18, 2021, 3 a.m. 8.0 ppb (8) 0.1 ppb (1) N/A 8.0 ppb (8) N/A N/A 37.0 ppb (35) 0.6 ppb (7) N/A 12.0 μg/m3 (50) 50.0
 
July 18, 2021, 2 a.m. 3.9 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 47.0 ppb (44) 0.4 ppb (5) N/A 9.2 μg/m3 (39) 44.0
 
July 18, 2021, 1 a.m. 1.6 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 59.0 ppb (65) 0.3 ppb (4) N/A 8.3 μg/m3 (35) 65.0
 
July 18, 2021, midnight 2.1 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 63.0 ppb (78) 0.3 ppb (4) N/A 4.9 μg/m3 (21) 78.0
 
July 17, 2021, 11 p.m. 1.6 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 63.0 ppb (78) 0.3 ppb (4) N/A 5.2 μg/m3 (22) 78.0
 
July 17, 2021, 10 p.m. 1.5 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 64.0 ppb (81) 0.3 ppb (4) N/A 4.8 μg/m3 (20) 81.0
 
July 17, 2021, 9 p.m. 1.9 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 63.0 ppb (78) 0.3 ppb (4) N/A 4.3 μg/m3 (18) 78.0
 
July 17, 2021, 8 p.m. 2.2 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 67.0 ppb (91) 0.3 ppb (4) N/A 3.1 μg/m3 (13) 91.0
 
July 17, 2021, 7 p.m. 2.5 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 68.0 ppb (94) 0.3 ppb (4) N/A 6.0 μg/m3 (25) 94.0
 
July 17, 2021, 6 p.m. 3.1 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 68.0 ppb (94) 0.3 ppb (4) N/A 5.1 μg/m3 (22) 94.0
 
July 17, 2021, 5 p.m. 5.2 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 65.0 ppb (84) 0.3 ppb (4) N/A 8.7 μg/m3 (37) 84.0
 
July 17, 2021, 4 p.m. 11.1 ppb (11) 2.2 ppb (3) N/A 9.0 ppb (9) N/A N/A 52.0 ppb (49) 0.3 ppb (4) N/A 11.2 μg/m3 (47) 49.0
 
July 17, 2021, 3 p.m. 7.8 ppb (8) 1.5 ppb (2) N/A 6.0 ppb (6) N/A N/A 44.0 ppb (41) 0.3 ppb (4) N/A 11.2 μg/m3 (47) 47.0
 
July 17, 2021, 2 p.m. 7.8 ppb (8) 1.4 ppb (2) N/A 6.0 ppb (6) N/A N/A 36.0 ppb (34) 0.3 ppb (4) N/A 12.8 μg/m3 (53) 53.0
 
July 17, 2021, 1 p.m. 8.2 ppb (8) 1.0 ppb (1) N/A 7.0 ppb (7) N/A N/A 26.0 ppb (25) 0.4 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
July 17, 2021, noon 4.5 ppb (5) 0.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (28) 0.3 ppb (4) N/A 7.5 μg/m3 (32) 32.0
 
July 17, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) 0.3 ppb (4) N/A 6.8 μg/m3 (29) 31.0
 
July 17, 2021, 10 a.m. 4.0 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 33.0 ppb (31) 0.2 ppb (3) N/A 7.8 μg/m3 (33) 33.0
 
July 17, 2021, 9 a.m. 3.2 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (38) 0.2 ppb (3) N/A 7.4 μg/m3 (31) 38.0
 
July 17, 2021, 8 a.m. 2.6 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 46.0 ppb (43) 0.2 ppb (3) N/A 6.9 μg/m3 (29) 43.0
 
July 17, 2021, 7 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (38) 0.3 ppb (4) N/A 32.0 μg/m3 (93) 93.0
 
July 17, 2021, 6 a.m. 7.3 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (7) N/A N/A 40.0 ppb (38) 0.3 ppb (4) N/A 32.8 μg/m3 (95) 95.0
 
July 17, 2021, 5 a.m. 5.5 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A 46.0 ppb (43) 0.3 ppb (4) N/A 31.4 μg/m3 (92) 92.0