ID: 1803

AQSQID: 160010010

Site Name: St. Lukes Meridian

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

Updated: Aug. 3, 2021, 9:57 p.m.

Location: Meridian (Whiteriver Dr), ID

Reporting: True, Located: True

Current AQI: 106.0

Meridian (Whiteriver Dr) ID, US: 43.600699, -116.347853

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Aug. 3, 2021, 8 p.m. 10.6 ppb (10) 5.5 ppb (6) 6.0 ppb (6) 5.0 ppb (5) 4.8 ppb (5) N/A 79.0 ppb (106) N/A N/A 16.0 μg/m3 (60) 106.0
 
Aug. 3, 2021, 7 p.m. 9.7 ppb (10) 5.3 ppb (5) 4.6 ppb (5) 4.0 ppb (4) 3.7 ppb (4) N/A 66.0 ppb (87) 0.16 ppb (3) N/A 11.0 μg/m3 (46) 87.0
 
Aug. 3, 2021, 6 p.m. 12.9 ppb (13) 6.2 ppb (6) 7.4 ppb (7) 7.0 ppb (7) 5.6 ppb (6) N/A 54.0 ppb (50) 0.18 ppb (3) N/A 13.0 μg/m3 (53) 53.0
 
Aug. 3, 2021, 5 p.m. 15.6 ppb (15) 7.3 ppb (7) 9.9 ppb (10) 8.0 ppb (8) 6.9 ppb (7) N/A 40.0 ppb (38) 0.18 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
Aug. 3, 2021, 4 p.m. 15.2 ppb (15) 7.3 ppb (7) 9.0 ppb (9) 8.0 ppb (8) 5.9 ppb (6) N/A N/A 0.14 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Aug. 3, 2021, 3 p.m. 17.5 ppb (17) 8.2 ppb (8) 11.8 ppb (12) 9.0 ppb (9) 7.5 ppb (8) 0.0 ppb (0) N/A 0.14 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Aug. 3, 2021, 2 p.m. 18.7 ppb (18) 7.8 ppb (8) 12.5 ppb (12) 11.0 ppb (11) 8.2 ppb (8) 0.0 ppb (0) 23.0 ppb (22) 0.16 ppb (3) N/A 5.0 μg/m3 (21) 22.0
 
Aug. 3, 2021, 1 p.m. 22.9 ppb (22) 7.7 ppb (8) 16.0 ppb (16) 15.0 ppb (15) 11.8 ppb (12) 0.0 ppb (0) 20.0 ppb (19) 0.19 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Aug. 3, 2021, noon 20.7 ppb (20) 6.4 ppb (7) 14.3 ppb (14) 14.0 ppb (14) 11.6 ppb (11) 0.0 ppb (0) 18.0 ppb (17) 0.18 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Aug. 3, 2021, 11 a.m. 15.9 ppb (15) 5.6 ppb (6) 9.4 ppb (9) 10.0 ppb (10) 8.0 ppb (8) 0.0 ppb (0) 24.0 ppb (23) 0.13 ppb (2) N/A 5.0 μg/m3 (21) 23.0
 
Aug. 3, 2021, 10 a.m. 11.0 ppb (11) 5.2 ppb (5) 5.1 ppb (5) 6.0 ppb (6) 4.2 ppb (4) 0.0 ppb (0) 31.0 ppb (29) 0.12 ppb (2) N/A 5.0 μg/m3 (21) 29.0
 
Aug. 3, 2021, 9 a.m. 11.1 ppb (11) 5.1 ppb (5) 5.5 ppb (6) 6.0 ppb (6) 4.6 ppb (5) 0.0 ppb (0) 38.0 ppb (36) 0.14 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
Aug. 3, 2021, 8 a.m. 13.3 ppb (13) 5.3 ppb (5) 7.8 ppb (8) 8.0 ppb (8) 6.8 ppb (7) 0.0 ppb (0) 38.0 ppb (36) 0.18 ppb (3) N/A 19.0 μg/m3 (66) 66.0
 
Aug. 3, 2021, 7 a.m. 16.4 ppb (16) 5.3 ppb (5) 11.3 ppb (11) 11.0 ppb (11) 9.8 ppb (10) 0.0 ppb (0) 39.0 ppb (37) 0.2 ppb (3) N/A 25.0 μg/m3 (79) 79.0
 
Aug. 3, 2021, 6 a.m. 27.4 ppb (26) 5.3 ppb (5) 21.7 ppb (21) 22.0 ppb (21) 19.0 ppb (18) 0.0 ppb (0) 32.0 ppb (30) 0.31 ppb (4) N/A 19.0 μg/m3 (66) 66.0
 
Aug. 3, 2021, 5 a.m. 20.0 ppb (19) 5.0 ppb (5) 15.7 ppb (15) 15.0 ppb (15) 13.7 ppb (13) 0.0 ppb (0) 44.0 ppb (41) 0.27 ppb (4) N/A 22.0 μg/m3 (72) 72.0
 
Aug. 3, 2021, 4 a.m. 22.2 ppb (21) 5.0 ppb (5) 17.1 ppb (17) 17.0 ppb (17) 15.0 ppb (15) 0.0 ppb (0) 44.0 ppb (41) 0.34 ppb (4) N/A 26.0 μg/m3 (81) 81.0
 
Aug. 3, 2021, 3 a.m. 18.9 ppb (18) 5.1 ppb (5) 14.2 ppb (14) 14.0 ppb (14) 12.4 ppb (12) 0.0 ppb (0) 58.0 ppb (61) 0.31 ppb (4) N/A 21.0 μg/m3 (70) 70.0
 
Aug. 3, 2021, 2 a.m. 14.4 ppb (14) 5.3 ppb (5) 9.2 ppb (9) 9.0 ppb (9) 8.0 ppb (8) 0.0 ppb (0) 66.0 ppb (87) 0.26 ppb (4) N/A 22.0 μg/m3 (72) 87.0
 
Aug. 3, 2021, 1 a.m. 10.3 ppb (10) 5.4 ppb (6) 5.3 ppb (5) 5.0 ppb (5) 4.5 ppb (5) 0.0 ppb (0) 75.0 ppb (104) 0.22 ppb (3) N/A 18.0 μg/m3 (64) 104.0
 
Aug. 3, 2021, midnight 9.3 ppb (9) 5.2 ppb (5) 4.4 ppb (5) 4.0 ppb (4) 3.6 ppb (4) 0.0 ppb (0) 78.0 ppb (105) 0.21 ppb (3) N/A 19.0 μg/m3 (66) 105.0
 
Aug. 2, 2021, 11 p.m. 9.8 ppb (10) 5.6 ppb (6) 4.6 ppb (5) 4.0 ppb (4) 3.8 ppb (4) 0.0 ppb (0) 79.0 ppb (106) 0.22 ppb (3) N/A 21.0 μg/m3 (70) 106.0
 
Aug. 2, 2021, 10 p.m. 9.2 ppb (9) 5.3 ppb (5) 4.4 ppb (5) 4.0 ppb (4) 3.4 ppb (4) 0.0 ppb (0) 76.0 ppb (104) 0.25 ppb (3) N/A 23.0 μg/m3 (74) 104.0
 
Aug. 2, 2021, 9 p.m. 9.8 ppb (10) 5.6 ppb (6) 4.7 ppb (5) 4.0 ppb (4) 3.8 ppb (4) 0.0 ppb (0) 79.0 ppb (106) 0.25 ppb (3) N/A 29.0 μg/m3 (87) 106.0
 
Aug. 2, 2021, 8 p.m. 10.0 ppb (10) 5.5 ppb (6) 4.8 ppb (5) 4.0 ppb (4) 4.1 ppb (4) 0.0 ppb (0) 76.0 ppb (104) 0.25 ppb (3) N/A 25.0 μg/m3 (79) 104.0
 
Aug. 2, 2021, 7 p.m. 9.6 ppb (10) 5.2 ppb (5) 4.6 ppb (5) 4.0 ppb (4) 3.8 ppb (4) 0.0 ppb (0) 73.0 ppb (103) 0.22 ppb (3) N/A 28.0 μg/m3 (85) 103.0
 
Aug. 2, 2021, 6 p.m. 11.1 ppb (11) 5.2 ppb (5) 6.0 ppb (6) 6.0 ppb (6) 4.9 ppb (5) 0.0 ppb (0) 68.0 ppb (94) 0.22 ppb (3) N/A 20.0 μg/m3 (68) 94.0
 
Aug. 2, 2021, 5 p.m. 14.1 ppb (14) 6.1 ppb (6) 8.7 ppb (9) 8.0 ppb (8) 6.7 ppb (7) 0.0 ppb (0) 56.0 ppb (55) 0.2 ppb (3) N/A 19.0 μg/m3 (66) 66.0
 
Aug. 2, 2021, 4 p.m. 16.5 ppb (16) 6.7 ppb (7) 11.2 ppb (11) 10.0 ppb (10) 8.0 ppb (8) 0.0 ppb (0) 37.0 ppb (35) 0.19 ppb (3) N/A 17.0 μg/m3 (62) 62.0
 
Aug. 2, 2021, 3 p.m. 20.6 ppb (20) 8.5 ppb (9) 15.4 ppb (15) 12.0 ppb (12) 10.3 ppb (10) 0.0 ppb (0) 23.0 ppb (22) 0.18 ppb (3) N/A 21.0 μg/m3 (70) 70.0
 
Aug. 2, 2021, 2 p.m. 24.9 ppb (24) 10.0 ppb (10) 19.8 ppb (19) 15.0 ppb (15) 12.7 ppb (12) 0.0 ppb (0) 12.0 ppb (12) 0.21 ppb (3) N/A 16.0 μg/m3 (60) 60.0
 
Aug. 2, 2021, 1 p.m. 32.3 ppb (31) 14.2 ppb (14) 27.1 ppb (26) 18.0 ppb (17) 15.5 ppb (15) 0.0 ppb (0) 4.0 ppb (4) 0.25 ppb (3) N/A 23.0 μg/m3 (74) 74.0
 
Aug. 2, 2021, noon 28.4 ppb (27) 11.9 ppb (12) 22.6 ppb (22) 17.0 ppb (17) 14.1 ppb (14) 0.0 ppb (0) 2.0 ppb (2) 0.24 ppb (3) N/A 14.0 μg/m3 (55) 55.0
 
Aug. 2, 2021, 11 a.m. 21.8 ppb (21) 7.6 ppb (8) 15.3 ppb (15) 14.0 ppb (14) 11.4 ppb (11) 0.0 ppb (0) 5.0 ppb (5) 0.19 ppb (3) N/A 13.0 μg/m3 (53) 53.0
 
Aug. 2, 2021, 10 a.m. 23.1 ppb (22) 7.1 ppb (7) 17.8 ppb (17) 16.0 ppb (16) 14.3 ppb (14) 0.0 ppb (0) 5.0 ppb (5) 0.16 ppb (3) N/A 16.0 μg/m3 (60) 60.0
 
Aug. 2, 2021, 9 a.m. 15.2 ppb (15) 5.2 ppb (5) 9.5 ppb (9) 10.0 ppb (10) 8.2 ppb (8) 0.0 ppb (0) 14.0 ppb (13) 0.14 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
Aug. 2, 2021, 8 a.m. 15.2 ppb (15) 5.0 ppb (5) 9.7 ppb (10) 10.0 ppb (10) 8.4 ppb (8) 0.0 ppb (0) 20.0 ppb (19) 0.15 ppb (2) N/A 21.0 μg/m3 (70) 70.0
 
Aug. 2, 2021, 7 a.m. 17.0 ppb (17) 5.1 ppb (5) 11.6 ppb (11) 12.0 ppb (12) 10.1 ppb (10) 0.0 ppb (0) 21.0 ppb (20) 0.17 ppb (3) N/A N/A 20.0
 
Aug. 2, 2021, 6 a.m. 16.6 ppb (16) 5.0 ppb (5) 11.7 ppb (12) 12.0 ppb (12) 10.2 ppb (10) 0.0 ppb (0) 20.0 ppb (19) 0.17 ppb (3) N/A 23.0 μg/m3 (74) 74.0
 
Aug. 2, 2021, 5 a.m. 16.6 ppb (16) 5.3 ppb (5) 11.4 ppb (11) 11.0 ppb (11) 9.9 ppb (10) 0.0 ppb (0) 23.0 ppb (22) 0.18 ppb (3) N/A 17.0 μg/m3 (62) 62.0
 
Aug. 2, 2021, 4 a.m. 17.3 ppb (17) 5.2 ppb (5) 12.1 ppb (12) 12.0 ppb (12) 10.5 ppb (10) 0.0 ppb (0) 26.0 ppb (25) 0.19 ppb (3) N/A 22.0 μg/m3 (72) 72.0
 
Aug. 2, 2021, 3 a.m. 16.4 ppb (16) 5.1 ppb (5) 11.0 ppb (11) 11.0 ppb (11) 9.6 ppb (10) 0.0 ppb (0) 37.0 ppb (35) 0.19 ppb (3) N/A 21.0 μg/m3 (70) 70.0
 
Aug. 2, 2021, 2 a.m. 16.4 ppb (16) 5.1 ppb (5) 11.2 ppb (11) 11.0 ppb (11) 9.6 ppb (10) 0.0 ppb (0) 42.0 ppb (39) 0.21 ppb (3) N/A 23.0 μg/m3 (74) 74.0
 
Aug. 2, 2021, 1 a.m. 14.4 ppb (14) 5.2 ppb (5) 8.9 ppb (9) 9.0 ppb (9) 7.5 ppb (8) 0.0 ppb (0) 47.0 ppb (44) 0.21 ppb (3) N/A 25.0 μg/m3 (79) 79.0
 
Aug. 2, 2021, midnight 12.3 ppb (12) 5.0 ppb (5) 6.4 ppb (7) 7.0 ppb (7) 5.4 ppb (6) 0.0 ppb (0) 50.0 ppb (47) 0.22 ppb (3) N/A 16.0 μg/m3 (60) 60.0
 
Aug. 1, 2021, 11 p.m. 8.8 ppb (9) 5.2 ppb (5) 3.0 ppb (3) 4.0 ppb (4) 2.5 ppb (3) 0.0 ppb (0) 57.0 ppb (58) 0.19 ppb (3) N/A 15.0 μg/m3 (58) 58.0
 
Aug. 1, 2021, 10 p.m. 8.6 ppb (9) 5.0 ppb (5) 2.8 ppb (3) 4.0 ppb (4) 2.3 ppb (3) 0.0 ppb (0) 58.0 ppb (61) 0.17 ppb (3) N/A 16.0 μg/m3 (60) 61.0
 
Aug. 1, 2021, 9 p.m. 9.4 ppb (9) 5.2 ppb (5) 3.6 ppb (4) 4.0 ppb (4) 2.9 ppb (3) 0.0 ppb (0) 60.0 ppb (68) 0.16 ppb (3) N/A 15.0 μg/m3 (58) 68.0
 
Aug. 1, 2021, 8 p.m. 9.9 ppb (10) 5.2 ppb (5) 4.4 ppb (5) 5.0 ppb (5) 3.6 ppb (4) 0.0 ppb (0) 61.0 ppb (71) 0.13 ppb (2) N/A 18.0 μg/m3 (64) 71.0
 
Aug. 1, 2021, 7 p.m. 9.7 ppb (10) 5.1 ppb (5) 4.3 ppb (5) 5.0 ppb (5) 3.5 ppb (4) 0.0 ppb (0) 58.0 ppb (61) 0.11 ppb (2) N/A 12.0 μg/m3 (50) 61.0
 
Aug. 1, 2021, 6 p.m. 10.2 ppb (10) 5.3 ppb (5) 4.6 ppb (5) 5.0 ppb (5) 3.7 ppb (4) 0.0 ppb (0) 51.0 ppb (48) 0.11 ppb (2) N/A 8.0 μg/m3 (34) 48.0
 
Aug. 1, 2021, 5 p.m. 12.1 ppb (12) 5.2 ppb (5) 7.1 ppb (7) 7.0 ppb (7) 5.5 ppb (6) 0.0 ppb (0) 39.0 ppb (37) 0.13 ppb (2) N/A 6.0 μg/m3 (25) 37.0
 
Aug. 1, 2021, 4 p.m. 12.2 ppb (12) 5.4 ppb (6) 6.8 ppb (7) 7.0 ppb (7) 5.4 ppb (6) 0.0 ppb (0) 33.0 ppb (31) 0.13 ppb (2) N/A 8.0 μg/m3 (34) 34.0
 
Aug. 1, 2021, 3 p.m. 12.4 ppb (12) 5.0 ppb (5) 7.5 ppb (8) 7.0 ppb (7) 6.1 ppb (6) 0.0 ppb (0) 29.0 ppb (27) 0.12 ppb (2) N/A 4.0 μg/m3 (17) 27.0
 
Aug. 1, 2021, 2 p.m. 11.0 ppb (11) 4.9 ppb (5) 5.9 ppb (6) 6.0 ppb (6) 4.9 ppb (5) 0.0 ppb (0) 29.0 ppb (27) 0.11 ppb (2) N/A 5.0 μg/m3 (21) 27.0
 
Aug. 1, 2021, 1 p.m. 12.4 ppb (12) 5.0 ppb (5) 6.6 ppb (7) 7.0 ppb (7) 5.7 ppb (6) 0.0 ppb (0) 29.0 ppb (27) 0.11 ppb (2) N/A 5.0 μg/m3 (21) 27.0
 
Aug. 1, 2021, noon 10.7 ppb (11) 4.7 ppb (5) 5.5 ppb (6) 6.0 ppb (6) 4.8 ppb (5) 0.0 ppb (0) 23.0 ppb (22) 0.11 ppb (2) N/A 1.0 μg/m3 (5) 22.0
 
Aug. 1, 2021, 11 a.m. 12.4 ppb (12) 4.8 ppb (5) 6.5 ppb (7) 8.0 ppb (8) 5.7 ppb (6) 0.0 ppb (0) 27.0 ppb (25) 0.11 ppb (2) N/A 0.0 μg/m3 (0) 25.0
 
Aug. 1, 2021, 10 a.m. 10.9 ppb (11) 4.6 ppb (5) 5.4 ppb (6) 6.0 ppb (6) 4.6 ppb (5) 0.0 ppb (0) 31.0 ppb (29) 0.1 ppb (2) N/A 0.0 μg/m3 (0) 29.0
 
Aug. 1, 2021, 9 a.m. 9.9 ppb (10) 4.9 ppb (5) 3.7 ppb (4) 5.0 ppb (5) 3.2 ppb (4) 0.0 ppb (0) 39.0 ppb (37) 0.1 ppb (2) N/A 2.0 μg/m3 (9) 37.0
 
Aug. 1, 2021, 8 a.m. 11.5 ppb (11) 4.9 ppb (5) 5.5 ppb (6) 7.0 ppb (7) 4.8 ppb (5) 0.0 ppb (0) 34.0 ppb (32) 0.11 ppb (2) N/A 3.0 μg/m3 (13) 32.0
 
Aug. 1, 2021, 7 a.m. 11.2 ppb (11) 4.5 ppb (5) 5.5 ppb (6) 7.0 ppb (7) 4.8 ppb (5) 0.0 ppb (0) 39.0 ppb (37) 0.12 ppb (2) N/A N/A 37.0
 
Aug. 1, 2021, 6 a.m. 9.6 ppb (10) 4.9 ppb (5) 3.7 ppb (4) 5.0 ppb (5) 3.2 ppb (4) 0.0 ppb (0) 42.0 ppb (39) 0.11 ppb (2) N/A 2.0 μg/m3 (9) 39.0
 
Aug. 1, 2021, 5 a.m. 9.6 ppb (10) 4.9 ppb (5) 3.5 ppb (4) 5.0 ppb (5) 2.9 ppb (3) 0.0 ppb (0) 30.0 ppb (28) 0.12 ppb (2) N/A 6.0 μg/m3 (25) 28.0
 
Aug. 1, 2021, 4 a.m. 9.1 ppb (9) 4.8 ppb (5) 3.9 ppb (4) 4.0 ppb (4) 3.3 ppb (4) 0.0 ppb (0) 23.0 ppb (22) 0.14 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
Aug. 1, 2021, 3 a.m. 8.6 ppb (9) 4.8 ppb (5) 3.2 ppb (4) 4.0 ppb (4) 2.8 ppb (3) 0.0 ppb (0) 41.0 ppb (38) 0.17 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Aug. 1, 2021, 2 a.m. 9.6 ppb (10) 4.9 ppb (5) 4.6 ppb (5) 5.0 ppb (5) 3.9 ppb (4) 0.0 ppb (0) 51.0 ppb (48) 0.16 ppb (3) N/A 10.0 μg/m3 (42) 48.0
 
Aug. 1, 2021, 1 a.m. 9.7 ppb (10) 5.0 ppb (5) 4.6 ppb (5) 5.0 ppb (5) 3.8 ppb (4) 0.0 ppb (0) 55.0 ppb (51) 0.16 ppb (3) N/A 1.0 μg/m3 (5) 51.0
 
Aug. 1, 2021, midnight 7.6 ppb (8) 5.0 ppb (5) 2.7 ppb (3) 3.0 ppb (3) 2.1 ppb (2) 0.0 ppb (0) 64.0 ppb (81) 0.14 ppb (2) N/A 2.0 μg/m3 (9) 81.0
 
July 31, 2021, 11 p.m. 7.6 ppb (8) 5.1 ppb (5) 2.4 ppb (3) 2.0 ppb (2) 1.8 ppb (2) 0.0 ppb (0) 66.0 ppb (87) 0.13 ppb (2) N/A 7.0 μg/m3 (30) 87.0
 
July 31, 2021, 10 p.m. 8.5 ppb (9) 5.3 ppb (5) 3.3 ppb (4) 3.0 ppb (3) 2.6 ppb (3) 0.0 ppb (0) 64.0 ppb (81) 0.14 ppb (2) N/A 5.0 μg/m3 (21) 81.0
 
July 31, 2021, 9 p.m. 7.9 ppb (8) 5.0 ppb (5) 2.8 ppb (3) 3.0 ppb (3) 2.2 ppb (3) 0.0 ppb (0) 60.0 ppb (68) 0.14 ppb (2) N/A 6.0 μg/m3 (25) 68.0
 
July 31, 2021, 8 p.m. 8.1 ppb (8) 4.9 ppb (5) 3.2 ppb (4) 3.0 ppb (3) 2.5 ppb (3) 0.0 ppb (0) 61.0 ppb (71) 0.16 ppb (3) N/A 7.0 μg/m3 (30) 71.0
 
July 31, 2021, 7 p.m. 9.5 ppb (9) 5.1 ppb (5) 4.5 ppb (5) 4.0 ppb (4) 3.6 ppb (4) 0.0 ppb (0) 58.0 ppb (61) 0.19 ppb (3) N/A 11.0 μg/m3 (46) 61.0
 
July 31, 2021, 6 p.m. 8.8 ppb (9) 4.9 ppb (5) 3.9 ppb (4) 4.0 ppb (4) 3.0 ppb (3) 0.0 ppb (0) 50.0 ppb (47) 0.2 ppb (3) N/A 11.0 μg/m3 (46) 47.0
 
July 31, 2021, 5 p.m. 10.1 ppb (10) 5.4 ppb (6) 4.9 ppb (5) 5.0 ppb (5) 3.7 ppb (4) 0.0 ppb (0) 44.0 ppb (41) 0.19 ppb (3) N/A 15.0 μg/m3 (58) 58.0
 
July 31, 2021, 4 p.m. 11.0 ppb (11) 5.4 ppb (6) 5.6 ppb (6) 6.0 ppb (6) 4.3 ppb (5) 0.0 ppb (0) 43.0 ppb (40) 0.19 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
July 31, 2021, 3 p.m. 11.4 ppb (11) 5.5 ppb (6) 6.0 ppb (6) 6.0 ppb (6) 4.5 ppb (5) 0.0 ppb (0) 44.0 ppb (41) 0.19 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
July 31, 2021, 2 p.m. 13.5 ppb (13) 5.6 ppb (6) 8.6 ppb (9) 8.0 ppb (8) 6.4 ppb (7) 0.0 ppb (0) 35.0 ppb (33) 0.19 ppb (3) N/A 13.0 μg/m3 (53) 53.0
 
July 31, 2021, 1 p.m. 19.3 ppb (19) 6.0 ppb (6) 12.7 ppb (12) 13.0 ppb (13) 10.3 ppb (10) 0.0 ppb (0) 28.0 ppb (26) 0.22 ppb (3) N/A 21.0 μg/m3 (70) 70.0
 
July 31, 2021, noon 13.4 ppb (13) 4.9 ppb (5) 7.6 ppb (8) 9.0 ppb (9) 6.6 ppb (7) 0.0 ppb (0) 35.0 ppb (33) 0.18 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
July 31, 2021, 11 a.m. 10.6 ppb (10) 4.9 ppb (5) 5.3 ppb (5) 6.0 ppb (6) 4.6 ppb (5) 0.0 ppb (0) 39.0 ppb (37) 0.16 ppb (3) N/A 16.0 μg/m3 (60) 60.0
 
July 31, 2021, 10 a.m. 8.9 ppb (9) 5.0 ppb (5) 3.6 ppb (4) 4.0 ppb (4) 3.0 ppb (3) 0.0 ppb (0) 46.0 ppb (43) 0.16 ppb (3) N/A 10.0 μg/m3 (42) 43.0
 
July 31, 2021, 9 a.m. 8.7 ppb (9) 4.6 ppb (5) 3.7 ppb (4) 4.0 ppb (4) 3.2 ppb (4) 0.0 ppb (0) 47.0 ppb (44) 0.18 ppb (3) N/A 19.0 μg/m3 (66) 66.0
 
July 31, 2021, 8 a.m. 7.9 ppb (8) 4.7 ppb (5) 2.8 ppb (3) 3.0 ppb (3) 2.3 ppb (3) 0.0 ppb (0) 54.0 ppb (50) 0.18 ppb (3) N/A 17.0 μg/m3 (62) 62.0
 
July 31, 2021, 7 a.m. 7.6 ppb (8) 4.8 ppb (5) 2.3 ppb (3) 3.0 ppb (3) 1.9 ppb (2) 0.0 ppb (0) 58.0 ppb (61) 0.18 ppb (3) N/A 14.0 μg/m3 (55) 61.0
 
July 31, 2021, 6 a.m. 7.8 ppb (8) 5.0 ppb (5) 2.5 ppb (3) 3.0 ppb (3) 2.1 ppb (2) 0.0 ppb (0) 59.0 ppb (65) 0.18 ppb (3) N/A 13.0 μg/m3 (53) 65.0
 
July 31, 2021, 5 a.m. 9.0 ppb (9) 5.0 ppb (5) 3.4 ppb (4) 4.0 ppb (4) 2.9 ppb (3) 0.0 ppb (0) 60.0 ppb (68) 0.19 ppb (3) N/A 18.0 μg/m3 (64) 68.0
 
July 31, 2021, 4 a.m. 8.5 ppb (9) 4.8 ppb (5) 3.4 ppb (4) 4.0 ppb (4) 2.9 ppb (3) 0.0 ppb (0) 58.0 ppb (61) 0.2 ppb (3) N/A 14.0 μg/m3 (55) 61.0
 
July 31, 2021, 3 a.m. 9.4 ppb (9) 4.7 ppb (5) 4.6 ppb (5) 5.0 ppb (5) 4.1 ppb (4) 0.0 ppb (0) 55.0 ppb (51) 0.22 ppb (3) N/A 20.0 μg/m3 (68) 68.0
 
July 31, 2021, 2 a.m. 8.3 ppb (8) 4.5 ppb (5) 4.1 ppb (4) 4.0 ppb (4) 3.5 ppb (4) 0.0 ppb (0) 60.0 ppb (68) 0.21 ppb (3) N/A 16.0 μg/m3 (60) 68.0
 
July 31, 2021, 1 a.m. 9.9 ppb (10) 4.6 ppb (5) 5.8 ppb (6) 5.0 ppb (5) 4.9 ppb (5) 0.0 ppb (0) 73.0 ppb (103) 0.21 ppb (3) N/A 11.0 μg/m3 (46) 103.0
 
July 31, 2021, midnight 10.2 ppb (10) 5.1 ppb (5) 5.4 ppb (6) 5.0 ppb (5) 4.4 ppb (5) 0.0 ppb (0) 77.0 ppb (105) 0.21 ppb (3) N/A 11.0 μg/m3 (46) 105.0
 
July 30, 2021, 11 p.m. 8.9 ppb (9) 5.1 ppb (5) 4.3 ppb (5) 4.0 ppb (4) 3.5 ppb (4) 0.0 ppb (0) 75.0 ppb (104) 0.2 ppb (3) N/A 8.0 μg/m3 (34) 104.0
 
July 30, 2021, 10 p.m. 8.3 ppb (8) 4.9 ppb (5) 3.7 ppb (4) 3.0 ppb (3) 2.9 ppb (3) 0.0 ppb (0) 73.0 ppb (103) 0.18 ppb (3) N/A 11.0 μg/m3 (46) 103.0
 
July 30, 2021, 9 p.m. 7.5 ppb (8) 4.8 ppb (5) 3.0 ppb (3) 3.0 ppb (3) 2.3 ppb (3) 0.0 ppb (0) 76.0 ppb (104) 0.17 ppb (3) N/A 14.0 μg/m3 (55) 104.0
 
July 30, 2021, 8 p.m. 8.1 ppb (8) 5.1 ppb (5) 3.4 ppb (4) 3.0 ppb (3) 2.6 ppb (3) 0.0 ppb (0) 79.0 ppb (106) 0.19 ppb (3) N/A 16.0 μg/m3 (60) 106.0
 
July 30, 2021, 7 p.m. 8.1 ppb (8) 5.1 ppb (5) 3.7 ppb (4) 3.0 ppb (3) 2.9 ppb (3) 0.0 ppb (0) 76.0 ppb (104) 0.2 ppb (3) N/A 18.0 μg/m3 (64) 104.0
 
July 30, 2021, 6 p.m. 7.8 ppb (8) 4.6 ppb (5) 3.4 ppb (4) 3.0 ppb (3) 2.7 ppb (3) 0.0 ppb (0) 68.0 ppb (94) 0.21 ppb (3) N/A 19.0 μg/m3 (66) 94.0
 
July 30, 2021, 5 p.m. 8.2 ppb (8) 5.1 ppb (5) 3.1 ppb (3) 3.0 ppb (3) 2.5 ppb (3) 0.0 ppb (0) 61.0 ppb (71) 0.19 ppb (3) N/A 14.0 μg/m3 (55) 71.0
 
July 30, 2021, 4 p.m. 10.6 ppb (10) 5.9 ppb (6) 5.0 ppb (5) 5.0 ppb (5) 3.7 ppb (4) 0.0 ppb (0) 51.0 ppb (48) 0.18 ppb (3) N/A 16.0 μg/m3 (60) 60.0
 
July 30, 2021, 3 p.m. 12.9 ppb (13) 5.7 ppb (6) 7.9 ppb (8) 7.0 ppb (7) 5.7 ppb (6) 0.0 ppb (0) 38.0 ppb (36) 0.19 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
July 30, 2021, 2 p.m. 22.2 ppb (21) 7.4 ppb (7) 16.3 ppb (16) 15.0 ppb (15) 12.0 ppb (12) 0.0 ppb (0) 30.0 ppb (28) 0.28 ppb (4) N/A 21.0 μg/m3 (70) 70.0
 
July 30, 2021, 1 p.m. 29.6 ppb (28) 7.1 ppb (7) 24.6 ppb (24) 22.0 ppb (21) 19.5 ppb (19) 0.0 ppb (0) 20.0 ppb (19) 0.33 ppb (4) N/A 16.0 μg/m3 (60) 60.0
 
July 30, 2021, noon 31.9 ppb (31) 6.0 ppb (6) 25.2 ppb (24) 26.0 ppb (25) 21.0 ppb (20) 0.0 ppb (0) 16.0 ppb (15) 0.27 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
July 30, 2021, 11 a.m. 16.9 ppb (16) 4.8 ppb (5) 11.8 ppb (12) 12.0 ppb (12) 10.2 ppb (10) 0.0 ppb (0) 29.0 ppb (27) 0.2 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
July 30, 2021, 10 a.m. 12.4 ppb (12) 5.2 ppb (5) 6.1 ppb (6) 7.0 ppb (7) 5.2 ppb (5) 0.0 ppb (0) 41.0 ppb (38) 0.16 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
July 30, 2021, 9 a.m. 8.2 ppb (8) 4.9 ppb (5) 2.7 ppb (3) 3.0 ppb (3) 2.3 ppb (3) 0.0 ppb (0) 52.0 ppb (49) 0.14 ppb (2) N/A 7.0 μg/m3 (30) 49.0
 
July 30, 2021, 8 a.m. 16.1 ppb (16) 5.0 ppb (5) 8.1 ppb (8) 11.0 ppb (11) 7.1 ppb (7) 0.0 ppb (0) 29.0 ppb (27) 0.21 ppb (3) N/A 17.0 μg/m3 (62) 62.0
 
July 30, 2021, 7 a.m. 19.1 ppb (19) 4.7 ppb (5) 13.0 ppb (13) 14.0 ppb (14) 11.3 ppb (11) 0.0 ppb (0) 23.0 ppb (22) 0.25 ppb (3) N/A 15.0 μg/m3 (58) 58.0
 
July 30, 2021, 6 a.m. 18.5 ppb (18) 4.8 ppb (5) 15.0 ppb (15) 14.0 ppb (14) 12.9 ppb (13) 0.0 ppb (0) 31.0 ppb (29) 0.27 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
July 30, 2021, 5 a.m. 32.1 ppb (31) 6.3 ppb (6) 24.4 ppb (24) 26.0 ppb (25) 20.2 ppb (20) 0.0 ppb (0) 20.0 ppb (19) 0.4 ppb (5) N/A 15.0 μg/m3 (58) 58.0
 
July 30, 2021, 4 a.m. 13.8 ppb (14) 4.6 ppb (5) 8.9 ppb (9) 9.0 ppb (9) 7.8 ppb (8) 0.0 ppb (0) 42.0 ppb (39) 0.25 ppb (3) N/A 17.0 μg/m3 (62) 62.0
 
July 30, 2021, 3 a.m. 19.0 ppb (18) 4.6 ppb (5) 14.5 ppb (14) 14.0 ppb (14) 12.7 ppb (12) 0.0 ppb (0) 43.0 ppb (40) 0.33 ppb (4) N/A 13.0 μg/m3 (53) 53.0
 
July 30, 2021, 2 a.m. 13.6 ppb (13) 4.9 ppb (5) 9.3 ppb (9) 9.0 ppb (9) 7.9 ppb (8) 0.0 ppb (0) 53.0 ppb (50) 0.23 ppb (3) N/A 17.0 μg/m3 (62) 62.0
 
July 30, 2021, 1 a.m. 8.8 ppb (9) 4.9 ppb (5) 4.0 ppb (4) 4.0 ppb (4) 3.2 ppb (4) 0.0 ppb (0) 62.0 ppb (74) 0.18 ppb (3) N/A 10.0 μg/m3 (42) 74.0
 
July 30, 2021, midnight 8.7 ppb (9) 4.9 ppb (5) 4.2 ppb (4) 4.0 ppb (4) 3.3 ppb (4) 0.0 ppb (0) 67.0 ppb (91) 0.18 ppb (3) N/A 15.0 μg/m3 (58) 91.0
 
July 29, 2021, 11 p.m. 9.4 ppb (9) 5.1 ppb (5) 4.9 ppb (5) 4.0 ppb (4) 3.9 ppb (4) 0.0 ppb (0) 75.0 ppb (104) 0.19 ppb (3) N/A 12.0 μg/m3 (50) 104.0
 
July 29, 2021, 10 p.m. 9.4 ppb (9) 5.3 ppb (5) 4.8 ppb (5) 4.0 ppb (4) 3.8 ppb (4) 0.0 ppb (0) 75.0 ppb (104) 0.19 ppb (3) N/A 17.0 μg/m3 (62) 104.0
 
July 29, 2021, 9 p.m. 8.8 ppb (9) 5.1 ppb (5) 4.5 ppb (5) 4.0 ppb (4) 3.4 ppb (4) 0.0 ppb (0) 71.0 ppb (101) 0.19 ppb (3) N/A 13.0 μg/m3 (53) 101.0
 
July 29, 2021, 8 p.m. 8.3 ppb (8) 4.8 ppb (5) 3.9 ppb (4) 4.0 ppb (4) 3.0 ppb (3) 0.0 ppb (0) 70.0 ppb (100) 0.18 ppb (3) N/A 13.0 μg/m3 (53) 100.0
 
July 29, 2021, 7 p.m. 8.3 ppb (8) 4.6 ppb (5) 4.1 ppb (4) 4.0 ppb (4) 3.3 ppb (4) 0.0 ppb (0) 70.0 ppb (100) 0.18 ppb (3) N/A 12.0 μg/m3 (50) 100.0
 
July 29, 2021, 6 p.m. 9.0 ppb (9) 5.0 ppb (5) 4.2 ppb (4) 4.0 ppb (4) 3.4 ppb (4) 0.0 ppb (0) 69.0 ppb (97) 0.19 ppb (3) N/A 14.0 μg/m3 (55) 97.0
 
July 29, 2021, 5 p.m. 10.4 ppb (10) 4.9 ppb (5) 5.9 ppb (6) 5.0 ppb (5) 4.6 ppb (5) 0.0 ppb (0) 64.0 ppb (81) 0.2 ppb (3) N/A 13.0 μg/m3 (53) 81.0
 
July 29, 2021, 4 p.m. 15.2 ppb (15) 6.1 ppb (6) 10.3 ppb (10) 9.0 ppb (9) 7.6 ppb (8) 0.0 ppb (0) 52.0 ppb (49) 0.24 ppb (3) N/A 14.0 μg/m3 (55) 55.0
 
July 29, 2021, 3 p.m. 19.0 ppb (18) 7.2 ppb (7) 14.1 ppb (14) 12.0 ppb (12) 10.0 ppb (10) 0.0 ppb (0) 39.0 ppb (37) 0.27 ppb (4) N/A 16.0 μg/m3 (60) 60.0
 
July 29, 2021, 2 p.m. 24.1 ppb (23) 8.5 ppb (9) 18.8 ppb (18) 16.0 ppb (16) 13.1 ppb (13) 0.0 ppb (0) 29.0 ppb (27) 0.28 ppb (4) N/A 16.0 μg/m3 (60) 60.0
 
July 29, 2021, 1 p.m. 35.9 ppb (34) 10.2 ppb (10) 26.4 ppb (25) 26.0 ppb (25) 19.9 ppb (19) 0.0 ppb (0) 15.0 ppb (14) 0.39 ppb (5) N/A 19.0 μg/m3 (66) 66.0
 
July 29, 2021, noon 28.7 ppb (28) 6.1 ppb (6) 25.5 ppb (25) 23.0 ppb (22) 20.9 ppb (20) 0.0 ppb (0) 15.0 ppb (14) 0.34 ppb (4) N/A N/A 28.0
 
July 29, 2021, 11 a.m. 17.0 ppb (17) 4.7 ppb (5) 11.5 ppb (11) 12.0 ppb (12) 10.0 ppb (10) 0.0 ppb (0) 26.0 ppb (25) 0.22 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
July 29, 2021, 10 a.m. 14.7 ppb (14) 4.8 ppb (5) 9.4 ppb (9) 10.0 ppb (10) 8.1 ppb (8) 0.0 ppb (0) 30.0 ppb (28) 0.2 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
July 29, 2021, 9 a.m. 11.2 ppb (11) 4.5 ppb (5) 5.8 ppb (6) 7.0 ppb (7) 5.1 ppb (5) 0.0 ppb (0) 37.0 ppb (35) 0.2 ppb (3) N/A 15.0 μg/m3 (58) 58.0
 
July 29, 2021, 8 a.m. 11.9 ppb (12) 4.6 ppb (5) 6.4 ppb (7) 7.0 ppb (7) 5.6 ppb (6) 0.0 ppb (0) 36.0 ppb (34) 0.18 ppb (3) N/A 14.0 μg/m3 (55) 55.0
 
July 29, 2021, 7 a.m. 27.7 ppb (27) 5.1 ppb (5) 25.0 ppb (24) 23.0 ppb (22) 21.2 ppb (20) 0.0 ppb (0) 17.0 ppb (16) 0.3 ppb (4) N/A 16.0 μg/m3 (60) 60.0
 
July 29, 2021, 6 a.m. 23.2 ppb (22) 4.5 ppb (5) 16.9 ppb (16) 19.0 ppb (18) 14.8 ppb (14) 0.0 ppb (0) 20.0 ppb (19) 0.32 ppb (4) N/A 19.0 μg/m3 (66) 66.0
 
July 29, 2021, 5 a.m. 28.8 ppb (28) 4.8 ppb (5) 22.6 ppb (22) 24.0 ppb (23) 19.8 ppb (19) 0.0 ppb (0) 14.0 ppb (13) 0.38 ppb (5) N/A 18.0 μg/m3 (64) 64.0
 
July 29, 2021, 4 a.m. 38.3 ppb (37) 6.6 ppb (7) 29.7 ppb (29) 32.0 ppb (31) 24.6 ppb (24) 0.0 ppb (0) 13.0 ppb (13) 0.47 ppb (6) N/A 19.0 μg/m3 (66) 66.0
 
July 29, 2021, 3 a.m. 19.9 ppb (19) 5.4 ppb (6) 22.2 ppb (21) 15.0 ppb (15) 18.4 ppb (18) 0.0 ppb (0) 28.0 ppb (26) 0.34 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
July 29, 2021, 2 a.m. 9.2 ppb (9) 4.4 ppb (5) 4.2 ppb (4) 5.0 ppb (5) 3.7 ppb (4) 0.0 ppb (0) 50.0 ppb (47) 0.21 ppb (3) N/A 13.0 μg/m3 (53) 53.0
 
July 29, 2021, 1 a.m. 7.5 ppb (8) 4.8 ppb (5) 2.4 ppb (3) 3.0 ppb (3) 2.0 ppb (2) 0.0 ppb (0) 60.0 ppb (68) 0.18 ppb (3) N/A 11.0 μg/m3 (46) 68.0
 
July 29, 2021, midnight 6.7 ppb (7) 4.7 ppb (5) 1.6 ppb (2) 2.0 ppb (2) 1.3 ppb (2) 0.0 ppb (0) 61.0 ppb (71) 0.17 ppb (3) N/A 7.0 μg/m3 (30) 71.0
 
July 28, 2021, 11 p.m. 6.6 ppb (7) 4.8 ppb (5) 1.4 ppb (2) 2.0 ppb (2) 1.1 ppb (2) 0.0 ppb (0) 59.0 ppb (65) 0.16 ppb (3) N/A 10.0 μg/m3 (42) 65.0
 
July 28, 2021, 10 p.m. 6.9 ppb (7) 4.6 ppb (5) 2.1 ppb (2) 2.0 ppb (2) 1.6 ppb (2) 0.0 ppb (0) 63.0 ppb (78) 0.18 ppb (3) N/A 8.0 μg/m3 (34) 78.0
 
July 28, 2021, 9 p.m. N/A N/A 2.5 ppb (3) N/A 1.9 ppb (2) N/A N/A N/A N/A N/A 3.0
 
July 28, 2021, 8 p.m. N/A N/A 2.9 ppb (3) N/A 2.2 ppb (3) N/A N/A N/A N/A 17.0 μg/m3 (62) 62.0
 
July 28, 2021, 7 p.m. N/A N/A 4.5 ppb (5) N/A 3.6 ppb (4) N/A N/A N/A N/A 14.0 μg/m3 (55) 55.0
 
July 28, 2021, 6 p.m. N/A N/A 6.3 ppb (6) N/A 4.9 ppb (5) N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
July 28, 2021, 5 p.m. N/A N/A 6.3 ppb (6) N/A 4.7 ppb (5) N/A N/A N/A N/A 7.0 μg/m3 (30) 30.0
 
July 28, 2021, 4 p.m. N/A N/A 9.3 ppb (9) N/A 7.0 ppb (7) N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
July 28, 2021, 3 p.m. N/A N/A 9.4 ppb (9) N/A 7.6 ppb (8) 0.0 ppb (0) 34.0 ppb (32) N/A N/A 11.0 μg/m3 (46) 46.0
 
July 28, 2021, 2 p.m. 16.7 ppb (16) 5.1 ppb (5) 11.2 ppb (11) 12.0 ppb (12) 9.3 ppb (9) 0.0 ppb (0) 32.0 ppb (30) 0.18 ppb (3) N/A 13.0 μg/m3 (53) 53.0
 
July 28, 2021, 1 p.m. 15.9 ppb (15) 4.8 ppb (5) 10.8 ppb (11) 11.0 ppb (11) 9.1 ppb (9) 0.0 ppb (0) 30.0 ppb (28) 0.17 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
July 28, 2021, noon 13.2 ppb (13) 4.5 ppb (5) 8.2 ppb (8) 9.0 ppb (9) 7.1 ppb (7) 0.0 ppb (0) 35.0 ppb (33) 0.14 ppb (2) N/A 8.0 μg/m3 (34) 34.0
 
July 28, 2021, 11 a.m. 9.5 ppb (9) 4.3 ppb (5) 4.5 ppb (5) 5.0 ppb (5) 3.9 ppb (4) 0.0 ppb (0) 40.0 ppb (38) 0.11 ppb (2) N/A 14.0 μg/m3 (55) 55.0
 
July 28, 2021, 10 a.m. 9.1 ppb (9) 4.4 ppb (5) 4.3 ppb (5) 5.0 ppb (5) 3.7 ppb (4) 0.0 ppb (0) 41.0 ppb (38) 0.11 ppb (2) N/A 11.0 μg/m3 (46) 46.0
 
July 28, 2021, 9 a.m. 7.1 ppb (7) 4.4 ppb (5) 2.3 ppb (3) 3.0 ppb (3) 1.9 ppb (2) 0.0 ppb (0) 44.0 ppb (41) 0.09 ppb (2) N/A 8.0 μg/m3 (34) 41.0
 
July 28, 2021, 8 a.m. 6.7 ppb (7) 4.6 ppb (5) 1.7 ppb (2) 2.0 ppb (2) 1.4 ppb (2) 0.0 ppb (0) 46.0 ppb (43) 0.1 ppb (2) N/A 7.0 μg/m3 (30) 43.0
 
July 28, 2021, 7 a.m. 6.3 ppb (6) 4.3 ppb (5) 1.5 ppb (2) 2.0 ppb (2) 1.2 ppb (2) 0.0 ppb (0) 47.0 ppb (44) 0.1 ppb (2) N/A 12.0 μg/m3 (50) 50.0
 
July 28, 2021, 6 a.m. 7.0 ppb (7) 4.7 ppb (5) 2.0 ppb (2) 2.0 ppb (2) 1.6 ppb (2) 0.0 ppb (0) 46.0 ppb (43) 0.09 ppb (2) N/A 12.0 μg/m3 (50) 50.0
 
July 28, 2021, 5 a.m. 9.1 ppb (9) 4.5 ppb (5) 4.1 ppb (4) 5.0 ppb (5) 3.5 ppb (4) 0.0 ppb (0) 45.0 ppb (42) 0.11 ppb (2) N/A 12.0 μg/m3 (50) 50.0
 
July 28, 2021, 4 a.m. 9.8 ppb (10) 4.4 ppb (5) 5.1 ppb (5) 5.0 ppb (5) 4.4 ppb (5) 0.0 ppb (0) 45.0 ppb (42) 0.14 ppb (2) N/A 12.0 μg/m3 (50) 50.0
 
July 28, 2021, 3 a.m. 9.2 ppb (9) 4.4 ppb (5) 4.5 ppb (5) 5.0 ppb (5) 3.9 ppb (4) 0.0 ppb (0) 45.0 ppb (42) 0.16 ppb (3) N/A 17.0 μg/m3 (62) 62.0
 
July 28, 2021, 2 a.m. 9.7 ppb (10) 4.4 ppb (5) 5.4 ppb (6) 5.0 ppb (5) 4.6 ppb (5) 0.0 ppb (0) 59.0 ppb (65) 0.25 ppb (3) N/A 31.0 μg/m3 (91) 91.0
 
July 28, 2021, 1 a.m. 8.7 ppb (9) 4.5 ppb (5) 4.6 ppb (5) 4.0 ppb (4) 3.9 ppb (4) 0.0 ppb (0) 72.0 ppb (102) 0.25 ppb (3) N/A 20.0 μg/m3 (68) 102.0
 
July 28, 2021, midnight 8.7 ppb (9) 4.6 ppb (5) 4.7 ppb (5) 4.0 ppb (4) 3.9 ppb (4) 0.0 ppb (0) 75.0 ppb (104) 0.26 ppb (4) N/A 24.0 μg/m3 (77) 104.0
 
July 27, 2021, 11 p.m. 8.8 ppb (9) 4.7 ppb (5) 4.9 ppb (5) 4.0 ppb (4) 4.0 ppb (4) 0.0 ppb (0) 80.0 ppb (106) 0.26 ppb (4) N/A 26.0 μg/m3 (81) 106.0
 
July 27, 2021, 10 p.m. 8.5 ppb (9) 4.6 ppb (5) 4.8 ppb (5) 4.0 ppb (4) 3.8 ppb (4) 0.0 ppb (0) 80.0 ppb (106) 0.26 ppb (4) N/A 33.0 μg/m3 (95) 106.0
 
July 27, 2021, 9 p.m. 9.7 ppb (10) 4.8 ppb (5) 5.8 ppb (6) 5.0 ppb (5) 4.7 ppb (5) 0.0 ppb (0) 77.0 ppb (105) 0.28 ppb (4) N/A 36.0 μg/m3 (103) 105.0