ID: 2668

AQSQID: 560090010

Site Name: Converse County Long-Term

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

Updated: July 28, 2021, 6:56 p.m.

Location: Douglas (Highland Loop Rd), WY

Reporting: True, Located: True

Current AQI: 68.0

Douglas (Highland Loop Rd) WY, US: 43.1, -105.5

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 28, 2021, 4 p.m. 1.3 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 60.0 ppb (68) 0.21 ppb (3) 62.0 μg/m3 (55) N/A 68.0
 
July 28, 2021, 3 p.m. 1.3 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 63.0 ppb (78) 0.13 ppb (2) 35.0 μg/m3 (33) N/A 78.0
 
July 28, 2021, 2 p.m. 1.9 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 60.0 ppb (68) 0.1 ppb (2) 40.0 μg/m3 (38) N/A 68.0
 
July 28, 2021, 1 p.m. 2.7 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A N/A 51.0 ppb (48) 0.09 ppb (2) 124.0 μg/m3 (86) N/A 86.0
 
July 28, 2021, noon 2.5 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 49.0 ppb (46) 0.09 ppb (2) 104.0 μg/m3 (76) N/A 76.0
 
July 28, 2021, 11 a.m. 1.8 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 52.0 ppb (49) 0.09 ppb (2) 132.0 μg/m3 (90) N/A 90.0
 
July 28, 2021, 10 a.m. 1.9 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 55.0 ppb (51) 0.13 ppb (2) 80.0 μg/m3 (64) N/A 64.0
 
July 28, 2021, 9 a.m. 1.2 ppb (2) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 57.0 ppb (58) 0.1 ppb (2) 20.0 μg/m3 (19) N/A 58.0
 
July 28, 2021, 8 a.m. 0.9 ppb (1) -0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 59.0 ppb (65) 0.12 ppb (2) 20.0 μg/m3 (19) N/A 65.0
 
July 28, 2021, 7 a.m. 1.1 ppb (2) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 55.0 ppb (51) 0.1 ppb (2) 21.0 μg/m3 (20) N/A 51.0
 
July 28, 2021, 6 a.m. 1.0 ppb (1) -0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 53.0 ppb (50) 0.09 ppb (2) 80.0 μg/m3 (64) N/A 64.0
 
July 28, 2021, 5 a.m. 0.9 ppb (1) -0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A 53.0 ppb (50) 0.09 ppb (2) 22.0 μg/m3 (21) N/A 50.0
 
July 28, 2021, 4 a.m. 0.9 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 54.0 ppb (50) 0.1 ppb (2) N/A N/A 50.0
 
July 28, 2021, 3 a.m. 1.6 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 56.0 ppb (55) 0.1 ppb (2) 22.0 μg/m3 (21) N/A 55.0
 
July 28, 2021, 2 a.m. 1.4 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 59.0 ppb (65) 0.12 ppb (2) 21.0 μg/m3 (20) N/A 65.0
 
July 28, 2021, 1 a.m. 0.7 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 64.0 ppb (81) 0.12 ppb (2) 18.0 μg/m3 (17) N/A 81.0
 
July 28, 2021, midnight 0.5 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 65.0 ppb (84) 0.13 ppb (2) 20.0 μg/m3 (19) N/A 84.0
 
July 27, 2021, 11 p.m. 0.3 ppb (1) -0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 66.0 ppb (87) 0.14 ppb (2) 52.0 μg/m3 (49) N/A 87.0
 
July 27, 2021, 10 p.m. 0.6 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 67.0 ppb (91) 0.15 ppb (2) 37.0 μg/m3 (35) N/A 91.0
 
July 27, 2021, 9 p.m. 0.8 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 68.0 ppb (94) 0.16 ppb (3) N/A N/A 94.0
 
July 27, 2021, 8 p.m. 0.8 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 66.0 ppb (87) 0.16 ppb (3) 27.0 μg/m3 (25) N/A 87.0
 
July 27, 2021, 7 p.m. 0.5 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 65.0 ppb (84) 0.16 ppb (3) 36.0 μg/m3 (34) N/A 84.0
 
July 27, 2021, 6 p.m. 0.7 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 64.0 ppb (81) 0.15 ppb (2) 33.0 μg/m3 (31) N/A 81.0
 
July 27, 2021, 5 p.m. 0.9 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 61.0 ppb (71) 0.16 ppb (3) 88.0 μg/m3 (68) N/A 71.0
 
July 27, 2021, 4 p.m. 1.4 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 58.0 ppb (61) 0.17 ppb (3) 77.0 μg/m3 (62) N/A 62.0
 
July 27, 2021, 3 p.m. 1.9 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 61.0 ppb (71) 0.17 ppb (3) N/A N/A 71.0
 
July 27, 2021, 2 p.m. 1.4 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 57.0 ppb (58) 0.15 ppb (2) N/A N/A 58.0
 
July 27, 2021, 1 p.m. 1.9 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 53.0 ppb (50) 0.13 ppb (2) 55.0 μg/m3 (51) N/A 51.0
 
July 27, 2021, noon 1.2 ppb (2) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 54.0 ppb (50) 0.13 ppb (2) 60.0 μg/m3 (54) N/A 54.0
 
July 27, 2021, 11 a.m. 1.1 ppb (2) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 56.0 ppb (55) 0.13 ppb (2) 18.0 μg/m3 (17) N/A 55.0
 
July 27, 2021, 10 a.m. 1.3 ppb (2) -0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 57.0 ppb (58) 0.14 ppb (2) 19.0 μg/m3 (18) N/A 58.0
 
July 27, 2021, 9 a.m. 1.5 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 57.0 ppb (58) 0.13 ppb (2) 24.0 μg/m3 (23) N/A 58.0
 
July 27, 2021, 8 a.m. 1.3 ppb (2) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 57.0 ppb (58) 0.15 ppb (2) 21.0 μg/m3 (20) N/A 58.0
 
July 27, 2021, 7 a.m. 1.4 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 54.0 ppb (50) 0.14 ppb (2) N/A N/A 50.0
 
July 27, 2021, 6 a.m. 0.8 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 53.0 ppb (50) 0.14 ppb (2) 30.0 μg/m3 (28) N/A 50.0
 
July 27, 2021, 5 a.m. 1.1 ppb (2) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 55.0 ppb (51) 0.15 ppb (2) 27.0 μg/m3 (25) N/A 51.0
 
July 27, 2021, 4 a.m. 1.4 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 57.0 ppb (58) 0.15 ppb (2) N/A N/A 58.0
 
July 27, 2021, 3 a.m. 1.2 ppb (2) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 57.0 ppb (58) 0.15 ppb (2) N/A N/A 58.0
 
July 27, 2021, 2 a.m. 1.6 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 59.0 ppb (65) 0.18 ppb (3) 38.0 μg/m3 (36) N/A 65.0
 
July 27, 2021, 1 a.m. 1.7 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 68.0 ppb (94) 0.19 ppb (3) N/A N/A 94.0
 
July 27, 2021, midnight 0.9 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 76.0 ppb (104) 0.19 ppb (3) 39.0 μg/m3 (37) N/A 104.0
 
July 26, 2021, 11 p.m. 0.8 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 75.0 ppb (104) 0.19 ppb (3) 37.0 μg/m3 (35) N/A 104.0
 
July 26, 2021, 10 p.m. 0.4 ppb (1) -0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A 70.0 ppb (100) 0.19 ppb (3) 43.0 μg/m3 (40) N/A 100.0
 
July 26, 2021, 9 p.m. 0.6 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 68.0 ppb (94) 0.18 ppb (3) 50.0 μg/m3 (47) N/A 94.0
 
July 26, 2021, 8 p.m. 0.7 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 67.0 ppb (91) 0.18 ppb (3) N/A N/A 91.0
 
July 26, 2021, 7 p.m. 0.5 ppb (1) -0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 66.0 ppb (87) 0.18 ppb (3) N/A N/A 87.0
 
July 26, 2021, 6 p.m. 0.7 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 65.0 ppb (84) 0.18 ppb (3) 32.0 μg/m3 (30) N/A 84.0
 
July 26, 2021, 5 p.m. 0.7 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 63.0 ppb (78) 0.19 ppb (3) 34.0 μg/m3 (32) N/A 78.0
 
July 26, 2021, 4 p.m. 0.4 ppb (1) -0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 61.0 ppb (71) 0.19 ppb (3) 39.0 μg/m3 (37) N/A 71.0
 
July 26, 2021, 3 p.m. 0.9 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 59.0 ppb (65) 0.19 ppb (3) 36.0 μg/m3 (34) N/A 65.0
 
July 26, 2021, 2 p.m. 1.0 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 55.0 ppb (51) 0.18 ppb (3) 38.0 μg/m3 (36) N/A 51.0
 
July 26, 2021, 1 p.m. 1.8 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 50.0 ppb (47) 0.16 ppb (3) 41.0 μg/m3 (38) N/A 47.0
 
July 26, 2021, noon 2.3 ppb (3) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 50.0 ppb (47) 0.13 ppb (2) N/A N/A 47.0
 
July 26, 2021, 11 a.m. 2.4 ppb (3) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 47.0 ppb (44) 0.14 ppb (2) 26.0 μg/m3 (25) N/A 44.0
 
July 26, 2021, 10 a.m. 2.5 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 49.0 ppb (46) 0.18 ppb (3) N/A N/A 46.0
 
July 26, 2021, 9 a.m. 2.0 ppb (2) -0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 51.0 ppb (48) 0.13 ppb (2) 24.0 μg/m3 (23) N/A 48.0
 
July 26, 2021, 8 a.m. 2.0 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 52.0 ppb (49) 0.15 ppb (2) 28.0 μg/m3 (26) N/A 49.0
 
July 26, 2021, 7 a.m. 2.1 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 51.0 ppb (48) 0.13 ppb (2) 45.0 μg/m3 (42) N/A 48.0
 
July 26, 2021, 6 a.m. 1.6 ppb (2) -0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 53.0 ppb (50) 0.14 ppb (2) 34.0 μg/m3 (32) N/A 50.0
 
July 26, 2021, 5 a.m. 2.1 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 54.0 ppb (50) 0.14 ppb (2) 47.0 μg/m3 (44) N/A 50.0
 
July 26, 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) 0.13 ppb (2) 45.0 μg/m3 (42) N/A 58.0
 
July 26, 2021, 3 a.m. 1.4 ppb (2) -0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 58.0 ppb (61) 0.13 ppb (2) 55.0 μg/m3 (51) N/A 61.0
 
July 26, 2021, 2 a.m. 2.1 ppb (2) -0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 62.0 ppb (74) 0.16 ppb (3) N/A N/A 74.0
 
July 26, 2021, 1 a.m. 1.7 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 68.0 ppb (94) 0.17 ppb (3) 35.0 μg/m3 (33) N/A 94.0
 
July 26, 2021, midnight 1.1 ppb (2) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 73.0 ppb (103) 0.18 ppb (3) 33.0 μg/m3 (31) N/A 103.0
 
July 25, 2021, 11 p.m. 1.6 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 72.0 ppb (102) 0.18 ppb (3) 34.0 μg/m3 (32) N/A 102.0
 
July 25, 2021, 10 p.m. 1.5 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 74.0 ppb (103) 0.18 ppb (3) 33.0 μg/m3 (31) N/A 103.0
 
July 25, 2021, 9 p.m. 1.5 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 71.0 ppb (101) 0.18 ppb (3) 34.0 μg/m3 (32) N/A 101.0
 
July 25, 2021, 8 p.m. 1.3 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 70.0 ppb (100) 0.19 ppb (3) N/A N/A 100.0
 
July 25, 2021, 7 p.m. 1.3 ppb (2) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 68.0 ppb (94) 0.19 ppb (3) 35.0 μg/m3 (33) N/A 94.0
 
July 25, 2021, 6 p.m. 1.3 ppb (2) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 69.0 ppb (97) 0.2 ppb (3) 33.0 μg/m3 (31) N/A 97.0
 
July 25, 2021, 5 p.m. 1.2 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 70.0 ppb (100) 0.21 ppb (3) 49.0 μg/m3 (46) N/A 100.0
 
July 25, 2021, 4 p.m. 2.0 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 65.0 ppb (84) 0.2 ppb (3) 38.0 μg/m3 (36) N/A 84.0
 
July 25, 2021, 3 p.m. 2.5 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 58.0 ppb (61) 0.17 ppb (3) 30.0 μg/m3 (28) N/A 61.0
 
July 25, 2021, 2 p.m. 2.6 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 50.0 ppb (47) 0.17 ppb (3) 32.0 μg/m3 (30) N/A 47.0
 
July 25, 2021, 1 p.m. 3.7 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 42.0 ppb (39) 0.16 ppb (3) 33.0 μg/m3 (31) N/A 39.0
 
July 25, 2021, noon 3.5 ppb (4) -0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 42.0 ppb (39) 0.16 ppb (3) N/A N/A 39.0
 
July 25, 2021, 11 a.m. 3.7 ppb (4) -0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 42.0 ppb (39) 0.16 ppb (3) 30.0 μg/m3 (28) N/A 39.0
 
July 25, 2021, 10 a.m. 3.5 ppb (4) -0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 46.0 ppb (43) 0.17 ppb (3) 30.0 μg/m3 (28) N/A 43.0
 
July 25, 2021, 9 a.m. 3.1 ppb (3) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 49.0 ppb (46) 0.16 ppb (3) 27.0 μg/m3 (25) N/A 46.0
 
July 25, 2021, 8 a.m. 3.4 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 51.0 ppb (48) 0.17 ppb (3) 22.0 μg/m3 (21) N/A 48.0
 
July 25, 2021, 7 a.m. 10.8 ppb (11) 0.0 ppb (0) N/A 11.0 ppb (11) N/A N/A 38.0 ppb (36) 0.17 ppb (3) 35.0 μg/m3 (33) N/A 36.0
 
July 25, 2021, 6 a.m. 10.1 ppb (10) -0.2 ppb (0) N/A 10.0 ppb (10) N/A N/A 41.0 ppb (38) 0.17 ppb (3) 31.0 μg/m3 (29) N/A 38.0
 
July 25, 2021, 5 a.m. 5.7 ppb (6) -0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A 54.0 ppb (50) 0.18 ppb (3) 34.0 μg/m3 (32) N/A 50.0
 
July 25, 2021, 4 a.m. 4.8 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 57.0 ppb (58) 0.19 ppb (3) 22.0 μg/m3 (21) N/A 58.0
 
July 25, 2021, 3 a.m. 4.6 ppb (5) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 57.0 ppb (58) 0.2 ppb (3) 27.0 μg/m3 (25) N/A 58.0
 
July 25, 2021, 2 a.m. 2.1 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 60.0 ppb (68) 0.23 ppb (3) 36.0 μg/m3 (34) N/A 68.0
 
July 25, 2021, 1 a.m. 1.0 ppb (1) -0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 60.0 ppb (68) 0.2 ppb (3) N/A N/A 68.0
 
July 25, 2021, midnight 0.8 ppb (1) -0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 63.0 ppb (78) 0.16 ppb (3) 59.0 μg/m3 (53) N/A 78.0
 
July 24, 2021, 11 p.m. 1.1 ppb (2) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 71.0 ppb (101) 0.18 ppb (3) N/A N/A 101.0
 
July 24, 2021, 10 p.m. 1.1 ppb (2) -0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 73.0 ppb (103) 0.19 ppb (3) 44.0 μg/m3 (41) N/A 103.0
 
July 24, 2021, 9 p.m. 1.2 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 74.0 ppb (103) 0.17 ppb (3) 45.0 μg/m3 (42) N/A 103.0
 
July 24, 2021, 8 p.m. 1.2 ppb (2) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 72.0 ppb (102) 0.17 ppb (3) 39.0 μg/m3 (37) N/A 102.0
 
July 24, 2021, 7 p.m. 1.0 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 68.0 ppb (94) 0.17 ppb (3) 31.0 μg/m3 (29) N/A 94.0
 
July 24, 2021, 6 p.m. 1.1 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 65.0 ppb (84) 0.18 ppb (3) 34.0 μg/m3 (32) N/A 84.0
 
July 24, 2021, 5 p.m. 0.9 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 63.0 ppb (78) 0.17 ppb (3) 27.0 μg/m3 (25) N/A 78.0
 
July 24, 2021, 4 p.m. 1.0 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 59.0 ppb (65) 0.18 ppb (3) 26.0 μg/m3 (25) N/A 65.0
 
July 24, 2021, 3 p.m. 1.5 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 55.0 ppb (51) 0.18 ppb (3) 33.0 μg/m3 (31) N/A 51.0
 
July 24, 2021, 2 p.m. 2.0 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 54.0 ppb (50) 0.17 ppb (3) 33.0 μg/m3 (31) N/A 50.0
 
July 24, 2021, 1 p.m. 3.4 ppb (4) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (41) 0.17 ppb (3) 76.0 μg/m3 (62) N/A 62.0
 
July 24, 2021, noon 4.3 ppb (5) -0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 42.0 ppb (39) 0.18 ppb (3) 47.0 μg/m3 (44) N/A 44.0
 
July 24, 2021, 11 a.m. 1.9 ppb (2) -0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 55.0 ppb (51) 0.16 ppb (3) N/A N/A 51.0
 
July 24, 2021, 10 a.m. 3.7 ppb (4) -0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 51.0 ppb (48) 0.22 ppb (3) 190.0 μg/m3 (119) N/A 119.0
 
July 24, 2021, 9 a.m. 4.4 ppb (5) -0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 46.0 ppb (43) 0.17 ppb (3) 43.0 μg/m3 (40) N/A 43.0
 
July 24, 2021, 8 a.m. 3.1 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 46.0 ppb (43) 0.18 ppb (3) 31.0 μg/m3 (29) N/A 43.0
 
July 24, 2021, 7 a.m. 2.7 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 55.0 ppb (51) 0.17 ppb (3) 29.0 μg/m3 (27) N/A 51.0
 
July 24, 2021, 6 a.m. 3.2 ppb (4) -0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 50.0 ppb (47) 0.15 ppb (2) N/A N/A 47.0
 
July 24, 2021, 5 a.m. 3.3 ppb (4) -0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 51.0 ppb (48) 0.16 ppb (3) 95.0 μg/m3 (71) N/A 71.0
 
July 24, 2021, 4 a.m. 4.6 ppb (5) -0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 53.0 ppb (50) 0.13 ppb (2) 196.0 μg/m3 (122) N/A 122.0
 
July 24, 2021, 3 a.m. 2.4 ppb (3) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 57.0 ppb (58) 0.14 ppb (2) 28.0 μg/m3 (26) N/A 58.0
 
July 24, 2021, 2 a.m. 2.0 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 57.0 ppb (58) 0.13 ppb (2) 69.0 μg/m3 (58) N/A 58.0
 
July 24, 2021, 1 a.m. 1.3 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 59.0 ppb (65) 0.13 ppb (2) 55.0 μg/m3 (51) N/A 65.0
 
July 24, 2021, midnight 1.0 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 65.0 ppb (84) 0.14 ppb (2) 79.0 μg/m3 (63) N/A 84.0
 
July 23, 2021, 11 p.m. 0.9 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 63.0 ppb (78) 0.14 ppb (2) N/A N/A 78.0
 
July 23, 2021, 10 p.m. 1.0 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 61.0 ppb (71) 0.13 ppb (2) 25.0 μg/m3 (24) N/A 71.0
 
July 23, 2021, 9 p.m. 0.9 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 59.0 ppb (65) 0.12 ppb (2) N/A N/A 65.0
 
July 23, 2021, 8 p.m. 1.3 ppb (2) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 56.0 ppb (55) 0.12 ppb (2) 38.0 μg/m3 (36) N/A 55.0
 
July 23, 2021, 7 p.m. 1.6 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 53.0 ppb (50) 0.11 ppb (2) 39.0 μg/m3 (37) N/A 50.0
 
July 23, 2021, 6 p.m. 1.0 ppb (1) -0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 50.0 ppb (47) 0.11 ppb (2) 44.0 μg/m3 (41) N/A 47.0
 
July 23, 2021, 5 p.m. 1.2 ppb (2) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 50.0 ppb (47) 0.11 ppb (2) 131.0 μg/m3 (89) N/A 89.0
 
July 23, 2021, 4 p.m. 1.0 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 52.0 ppb (49) 0.12 ppb (2) 27.0 μg/m3 (25) N/A 49.0
 
July 23, 2021, 3 p.m. 0.7 ppb (1) -0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A 54.0 ppb (50) 0.13 ppb (2) 65.0 μg/m3 (56) N/A 56.0
 
July 23, 2021, 2 p.m. 1.3 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 49.0 ppb (46) 0.13 ppb (2) 42.0 μg/m3 (39) N/A 46.0
 
July 23, 2021, 1 p.m. 1.9 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (41) 0.12 ppb (2) 25.0 μg/m3 (24) N/A 41.0
 
July 23, 2021, noon 2.0 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (40) 0.13 ppb (2) 21.0 μg/m3 (20) N/A 40.0
 
July 23, 2021, 11 a.m. 1.9 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (39) 0.14 ppb (2) 19.0 μg/m3 (18) N/A 39.0
 
July 23, 2021, 10 a.m. 2.7 ppb (3) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (34) 0.15 ppb (2) 27.0 μg/m3 (25) N/A 34.0
 
July 23, 2021, 9 a.m. 4.0 ppb (4) -0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (32) 0.14 ppb (2) N/A N/A 32.0
 
July 23, 2021, 8 a.m. 3.7 ppb (4) -0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (32) 0.14 ppb (2) 23.0 μg/m3 (22) N/A 32.0
 
July 23, 2021, 7 a.m. 3.2 ppb (4) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (38) 0.11 ppb (2) 19.0 μg/m3 (18) N/A 38.0
 
July 23, 2021, 6 a.m. 3.2 ppb (4) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 41.0 ppb (38) 0.12 ppb (2) 14.0 μg/m3 (13) N/A 38.0
 
July 23, 2021, 5 a.m. 3.5 ppb (4) -0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (38) 0.13 ppb (2) 23.0 μg/m3 (22) N/A 38.0
 
July 23, 2021, 4 a.m. 1.9 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 50.0 ppb (47) 0.12 ppb (2) 16.0 μg/m3 (15) N/A 47.0
 
July 23, 2021, 3 a.m. 1.9 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 52.0 ppb (49) 0.11 ppb (2) 18.0 μg/m3 (17) N/A 49.0
 
July 23, 2021, 2 a.m. 2.5 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 56.0 ppb (55) 0.12 ppb (2) 17.0 μg/m3 (16) N/A 55.0
 
July 23, 2021, 1 a.m. 1.2 ppb (2) -0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 64.0 ppb (81) 0.11 ppb (2) 23.0 μg/m3 (22) N/A 81.0
 
July 23, 2021, midnight 1.0 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 65.0 ppb (84) 0.11 ppb (2) 20.0 μg/m3 (19) N/A 84.0
 
July 22, 2021, 11 p.m. 0.2 ppb (1) -0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A 61.0 ppb (71) 0.1 ppb (2) 45.0 μg/m3 (42) N/A 71.0
 
July 22, 2021, 10 p.m. 0.9 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 61.0 ppb (71) 0.09 ppb (2) 19.0 μg/m3 (18) N/A 71.0
 
July 22, 2021, 9 p.m. 1.1 ppb (2) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 63.0 ppb (78) 0.1 ppb (2) 54.0 μg/m3 (50) N/A 78.0
 
July 22, 2021, 8 p.m. 0.7 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 64.0 ppb (81) 0.12 ppb (2) N/A N/A 81.0
 
July 22, 2021, 7 p.m. 0.9 ppb (1) -0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 66.0 ppb (87) 0.12 ppb (2) 98.0 μg/m3 (73) N/A 87.0
 
July 22, 2021, 6 p.m. 1.2 ppb (2) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 67.0 ppb (91) 0.12 ppb (2) 81.0 μg/m3 (64) N/A 91.0
 
July 22, 2021, 5 p.m. 1.3 ppb (2) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 61.0 ppb (71) 0.11 ppb (2) N/A N/A 71.0
 
July 22, 2021, 4 p.m. 1.1 ppb (2) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 60.0 ppb (68) 0.11 ppb (2) 56.0 μg/m3 (52) N/A 68.0
 
July 22, 2021, 3 p.m. 3.1 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A N/A 56.0 ppb (55) 0.11 ppb (2) 115.0 μg/m3 (81) N/A 81.0
 
July 22, 2021, 2 p.m. 2.9 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A N/A 48.0 ppb (45) 0.12 ppb (2) 49.0 μg/m3 (46) N/A 46.0
 
July 22, 2021, 1 p.m. 2.3 ppb (3) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (40) 0.11 ppb (2) 69.0 μg/m3 (58) N/A 58.0
 
July 22, 2021, noon 4.3 ppb (5) -0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (38) 0.12 ppb (2) 59.0 μg/m3 (53) N/A 53.0
 
July 22, 2021, 11 a.m. 4.0 ppb (4) -0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (38) 0.12 ppb (2) 26.0 μg/m3 (25) N/A 38.0
 
July 22, 2021, 10 a.m. 1.5 ppb (2) -0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (43) 0.12 ppb (2) 23.0 μg/m3 (22) N/A 43.0
 
July 22, 2021, 9 a.m. 1.6 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (43) 0.11 ppb (2) 24.0 μg/m3 (23) N/A 43.0
 
July 22, 2021, 8 a.m. 1.7 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 48.0 ppb (45) 0.13 ppb (2) 24.0 μg/m3 (23) N/A 45.0
 
July 22, 2021, 7 a.m. 2.6 ppb (3) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 45.0 ppb (42) 0.14 ppb (2) 40.0 μg/m3 (38) N/A 42.0
 
July 22, 2021, 6 a.m. 3.3 ppb (4) -0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 47.0 ppb (44) 0.13 ppb (2) 28.0 μg/m3 (26) N/A 44.0
 
July 22, 2021, 5 a.m. 2.4 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 49.0 ppb (46) 0.14 ppb (2) 38.0 μg/m3 (36) N/A 46.0
 
July 22, 2021, 4 a.m. 3.7 ppb (4) -0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 50.0 ppb (47) 0.14 ppb (2) 23.0 μg/m3 (22) N/A 47.0
 
July 22, 2021, 3 a.m. 3.8 ppb (4) -0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 51.0 ppb (48) 0.13 ppb (2) 25.0 μg/m3 (24) N/A 48.0
 
July 22, 2021, 2 a.m. 2.2 ppb (3) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 56.0 ppb (55) 0.14 ppb (2) 47.0 μg/m3 (44) N/A 55.0
 
July 22, 2021, 1 a.m. 1.4 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 61.0 ppb (71) 0.14 ppb (2) 85.0 μg/m3 (66) N/A 71.0
 
July 22, 2021, midnight 1.1 ppb (2) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 62.0 ppb (74) 0.14 ppb (2) 44.0 μg/m3 (41) N/A 74.0
 
July 21, 2021, 11 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 62.0 ppb (74) 0.14 ppb (2) 61.0 μg/m3 (54) N/A 74.0
 
July 21, 2021, 10 p.m. 0.8 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 62.0 ppb (74) 0.14 ppb (2) 39.0 μg/m3 (37) N/A 74.0
 
July 21, 2021, 9 p.m. 1.0 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 61.0 ppb (71) 0.14 ppb (2) 27.0 μg/m3 (25) N/A 71.0
 
July 21, 2021, 8 p.m. 0.9 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 60.0 ppb (68) 0.14 ppb (2) 24.0 μg/m3 (23) N/A 68.0
 
July 21, 2021, 7 p.m. 1.2 ppb (2) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 59.0 ppb (65) 0.14 ppb (2) 23.0 μg/m3 (22) N/A 65.0
 
July 21, 2021, 6 p.m. 1.2 ppb (2) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 58.0 ppb (61) 0.15 ppb (2) 31.0 μg/m3 (29) N/A 61.0
 
July 21, 2021, 5 p.m. 1.2 ppb (2) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 56.0 ppb (55) 0.17 ppb (3) 32.0 μg/m3 (30) N/A 55.0