ID: 1118

AQSQID: 295100085

Site Name: Blair Street

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

Updated: June 23, 2021, 5:53 p.m.

Location: Saint Louis (Hyde Park), MO

Reporting: True, Located: True

Current AQI: 55.0

Saint Louis (Hyde Park) MO, US: 38.656449, -90.198548

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
June 23, 2021, 4 p.m. 3.6 ppb (4) 0.8 ppb (1) 5.8 ppb (6) 3.0 ppb (3) N/A 1.0 ppb (2) 56.0 ppb (55) 0.16 ppb (3) N/A N/A 55.0
 
June 23, 2021, 3 p.m. 5.4 ppb (6) 1.3 ppb (2) 8.3 ppb (8) 4.0 ppb (4) N/A 3.0 ppb (5) 55.0 ppb (51) 0.18 ppb (3) N/A N/A 51.0
 
June 23, 2021, 2 p.m. 7.6 ppb (8) 1.6 ppb (2) 10.2 ppb (10) 6.0 ppb (6) N/A 2.0 ppb (3) 49.0 ppb (46) 0.19 ppb (3) N/A N/A 46.0
 
June 23, 2021, 1 p.m. 8.2 ppb (8) 1.6 ppb (2) 9.7 ppb (10) 7.0 ppb (7) N/A 1.0 ppb (2) 42.0 ppb (39) 0.2 ppb (3) N/A 0.0 μg/m3 (0) 39.0
 
June 23, 2021, noon 12.7 ppb (12) 2.1 ppb (2) 13.7 ppb (13) 11.0 ppb (11) N/A 1.0 ppb (2) 34.0 ppb (32) 0.21 ppb (3) N/A N/A 32.0
 
June 23, 2021, 11 a.m. 13.3 ppb (13) 0.9 ppb (1) 13.8 ppb (14) 13.0 ppb (13) N/A 0.0 ppb (0) 30.0 ppb (28) 0.19 ppb (3) N/A N/A 28.0
 
June 23, 2021, 10 a.m. 9.1 ppb (9) 0.3 ppb (1) 10.0 ppb (10) 9.0 ppb (9) N/A 0.0 ppb (0) 33.0 ppb (31) 0.16 ppb (3) N/A N/A 31.0
 
June 23, 2021, 9 a.m. 8.2 ppb (8) 0.3 ppb (1) 9.1 ppb (9) 8.0 ppb (8) N/A 0.0 ppb (0) 34.0 ppb (32) 0.17 ppb (3) N/A N/A 32.0
 
June 23, 2021, 8 a.m. 9.6 ppb (10) 0.3 ppb (1) 10.2 ppb (10) 10.0 ppb (10) N/A 1.0 ppb (2) 34.0 ppb (32) 0.2 ppb (3) N/A N/A 32.0
 
June 23, 2021, 7 a.m. 10.0 ppb (10) 0.3 ppb (1) 10.5 ppb (10) 10.0 ppb (10) N/A 1.0 ppb (2) 33.0 ppb (31) 0.15 ppb (2) N/A N/A 31.0
 
June 23, 2021, 6 a.m. 5.8 ppb (6) 0.4 ppb (1) 6.5 ppb (7) 6.0 ppb (6) N/A 1.0 ppb (2) 39.0 ppb (37) 0.16 ppb (3) N/A N/A 37.0
 
June 23, 2021, 5 a.m. 8.3 ppb (8) 0.3 ppb (1) 8.9 ppb (9) 9.0 ppb (9) N/A 1.0 ppb (2) 38.0 ppb (36) 0.14 ppb (2) N/A N/A 36.0
 
June 23, 2021, 4 a.m. 11.7 ppb (12) 0.3 ppb (1) 11.6 ppb (11) 12.0 ppb (12) N/A 0.0 ppb (0) 37.0 ppb (35) 0.16 ppb (3) N/A N/A 35.0
 
June 23, 2021, 3 a.m. 11.8 ppb (12) 0.3 ppb (1) 12.0 ppb (12) 12.0 ppb (12) N/A 0.0 ppb (0) 39.0 ppb (37) 0.16 ppb (3) N/A N/A 37.0
 
June 23, 2021, 2 a.m. 15.4 ppb (15) 0.3 ppb (1) 15.2 ppb (15) 16.0 ppb (16) N/A 1.0 ppb (2) 38.0 ppb (36) 0.18 ppb (3) N/A N/A 36.0
 
June 23, 2021, 1 a.m. 7.2 ppb (7) 0.3 ppb (1) 7.7 ppb (8) 7.0 ppb (7) N/A 1.0 ppb (2) 47.0 ppb (44) 0.16 ppb (3) N/A N/A 44.0
 
June 23, 2021, midnight 2.7 ppb (3) 0.3 ppb (1) 4.1 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 54.0 ppb (50) 0.14 ppb (2) N/A N/A 50.0
 
June 22, 2021, 11 p.m. 2.3 ppb (3) 0.3 ppb (1) 4.1 ppb (4) 2.0 ppb (2) N/A 0.0 ppb (0) 59.0 ppb (65) 0.15 ppb (2) N/A N/A 65.0
 
June 22, 2021, 10 p.m. 2.3 ppb (3) 0.4 ppb (1) 4.9 ppb (5) 2.0 ppb (2) N/A 1.0 ppb (2) 63.0 ppb (78) 0.16 ppb (3) N/A N/A 78.0
 
June 22, 2021, 9 p.m. 4.3 ppb (5) 0.9 ppb (1) 6.9 ppb (7) 4.0 ppb (4) N/A 1.0 ppb (2) 59.0 ppb (65) 0.16 ppb (3) N/A N/A 65.0
 
June 22, 2021, 8 p.m. 3.8 ppb (4) 1.0 ppb (1) 5.8 ppb (6) 3.0 ppb (3) N/A 1.0 ppb (2) 55.0 ppb (51) 0.16 ppb (3) N/A N/A 51.0
 
June 22, 2021, 7 p.m. 5.6 ppb (6) 1.4 ppb (2) 7.6 ppb (8) 4.0 ppb (4) N/A 1.0 ppb (2) 51.0 ppb (48) 0.16 ppb (3) N/A N/A 48.0
 
June 22, 2021, 6 p.m. 2.3 ppb (3) 0.7 ppb (1) 4.1 ppb (4) 2.0 ppb (2) N/A 0.0 ppb (0) 48.0 ppb (45) 0.18 ppb (3) N/A N/A 45.0
 
June 22, 2021, 5 p.m. 5.5 ppb (6) 1.8 ppb (2) 6.6 ppb (7) 4.0 ppb (4) N/A 0.0 ppb (0) 44.0 ppb (41) 0.13 ppb (2) N/A N/A 41.0
 
June 22, 2021, 4 p.m. 13.3 ppb (13) 4.9 ppb (5) 11.8 ppb (12) 10.0 ppb (10) N/A 0.0 ppb (0) 40.0 ppb (38) 0.14 ppb (2) N/A N/A 38.0
 
June 22, 2021, 3 p.m. 5.3 ppb (5) 1.9 ppb (2) 6.1 ppb (6) 4.0 ppb (4) N/A 0.0 ppb (0) 40.0 ppb (38) 0.18 ppb (3) N/A N/A 38.0
 
June 22, 2021, 2 p.m. 5.1 ppb (5) 1.4 ppb (2) 6.2 ppb (6) 4.0 ppb (4) N/A 0.0 ppb (0) 38.0 ppb (36) 0.21 ppb (3) N/A N/A 36.0
 
June 22, 2021, 1 p.m. 7.2 ppb (7) 2.0 ppb (2) 7.9 ppb (8) 5.0 ppb (5) N/A 0.0 ppb (0) 31.0 ppb (29) 0.36 ppb (5) N/A N/A 29.0
 
June 22, 2021, noon 10.5 ppb (10) 2.7 ppb (3) 11.2 ppb (11) 8.0 ppb (8) N/A 0.0 ppb (0) 22.0 ppb (21) 0.28 ppb (4) N/A N/A 21.0
 
June 22, 2021, 11 a.m. 10.0 ppb (10) 1.3 ppb (2) 10.2 ppb (10) 9.0 ppb (9) N/A 0.0 ppb (0) 16.0 ppb (15) 0.22 ppb (3) N/A N/A 15.0
 
June 22, 2021, 10 a.m. 8.1 ppb (8) 0.3 ppb (1) 8.1 ppb (8) 8.0 ppb (8) N/A 0.0 ppb (0) 17.0 ppb (16) 0.19 ppb (3) N/A N/A 16.0
 
June 22, 2021, 9 a.m. 8.9 ppb (9) 0.3 ppb (1) 8.7 ppb (9) 9.0 ppb (9) N/A 0.0 ppb (0) 19.0 ppb (18) 0.21 ppb (3) N/A N/A 18.0
 
June 22, 2021, 8 a.m. 7.3 ppb (7) 0.3 ppb (1) 7.4 ppb (7) 8.0 ppb (8) N/A 0.0 ppb (0) 24.0 ppb (23) 0.18 ppb (3) N/A N/A 23.0
 
June 22, 2021, 7 a.m. 9.7 ppb (10) 0.3 ppb (1) 9.5 ppb (9) 10.0 ppb (10) N/A 0.0 ppb (0) 21.0 ppb (20) 0.21 ppb (3) N/A N/A 20.0
 
June 22, 2021, 6 a.m. 11.4 ppb (11) 0.3 ppb (1) 11.0 ppb (11) 11.0 ppb (11) N/A 0.0 ppb (0) 21.0 ppb (20) 0.22 ppb (3) N/A N/A 20.0
 
June 22, 2021, 5 a.m. 9.9 ppb (10) 0.3 ppb (1) 9.7 ppb (10) 10.0 ppb (10) N/A 0.0 ppb (0) 25.0 ppb (24) 0.24 ppb (3) N/A N/A 24.0
 
June 22, 2021, 4 a.m. 9.1 ppb (9) 0.3 ppb (1) 9.0 ppb (9) 9.0 ppb (9) N/A 0.0 ppb (0) 25.0 ppb (24) 0.25 ppb (3) N/A N/A 24.0
 
June 22, 2021, 3 a.m. 7.8 ppb (8) 0.4 ppb (1) 7.7 ppb (8) 8.0 ppb (8) N/A 0.0 ppb (0) 29.0 ppb (27) 0.24 ppb (3) N/A N/A 27.0
 
June 22, 2021, 2 a.m. 8.4 ppb (8) 0.4 ppb (1) 7.9 ppb (8) 8.0 ppb (8) N/A 0.0 ppb (0) 30.0 ppb (28) 0.28 ppb (4) N/A N/A 28.0
 
June 22, 2021, 1 a.m. 3.2 ppb (4) 0.3 ppb (1) 3.7 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 37.0 ppb (35) 0.17 ppb (3) N/A N/A 35.0
 
June 22, 2021, midnight 1.7 ppb (2) 0.3 ppb (1) 2.5 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (37) 0.14 ppb (2) N/A N/A 37.0
 
June 21, 2021, 11 p.m. 1.3 ppb (2) 0.4 ppb (1) 2.4 ppb (3) 1.0 ppb (1) N/A 0.0 ppb (0) 38.0 ppb (36) 0.13 ppb (2) N/A N/A 36.0
 
June 21, 2021, 10 p.m. 0.9 ppb (1) 0.3 ppb (1) 2.2 ppb (3) 1.0 ppb (1) N/A 0.0 ppb (0) 38.0 ppb (36) 0.15 ppb (2) N/A N/A 36.0
 
June 21, 2021, 9 p.m. 1.4 ppb (2) 0.3 ppb (1) 2.8 ppb (3) 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (33) 0.14 ppb (2) N/A N/A 33.0
 
June 21, 2021, 8 p.m. 2.9 ppb (3) 0.7 ppb (1) 4.1 ppb (4) 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (31) 0.19 ppb (3) N/A N/A 31.0
 
June 21, 2021, 7 p.m. 3.5 ppb (4) 0.9 ppb (1) 4.5 ppb (5) 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (31) 0.16 ppb (3) N/A N/A 31.0
 
June 21, 2021, 6 p.m. 3.4 ppb (4) 0.8 ppb (1) 4.0 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (31) 0.21 ppb (3) N/A N/A 31.0
 
June 21, 2021, 5 p.m. 2.5 ppb (3) 0.5 ppb (1) 3.7 ppb (4) 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (32) 0.15 ppb (2) N/A N/A 32.0
 
June 21, 2021, 4 p.m. 3.3 ppb (4) 0.6 ppb (1) 4.1 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (31) 0.23 ppb (3) N/A N/A 31.0
 
June 21, 2021, 3 p.m. 2.3 ppb (3) 0.5 ppb (1) 3.6 ppb (4) 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (32) 0.16 ppb (3) 10.0 μg/m3 (10) 4.9 μg/m3 (21) 32.0
 
June 21, 2021, 2 p.m. 3.6 ppb (4) 0.7 ppb (1) 4.5 ppb (5) 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (27) 0.22 ppb (3) 11.0 μg/m3 (11) 3.0 μg/m3 (13) 27.0
 
June 21, 2021, 1 p.m. 4.9 ppb (5) 1.4 ppb (2) 5.4 ppb (6) 4.0 ppb (4) N/A 0.0 ppb (0) 28.0 ppb (26) 0.2 ppb (3) 19.0 μg/m3 (18) 4.2 μg/m3 (18) 26.0
 
June 21, 2021, noon 3.7 ppb (4) 0.8 ppb (1) 4.0 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (25) 0.3 ppb (4) 21.0 μg/m3 (20) 3.6 μg/m3 (16) 25.0
 
June 21, 2021, 11 a.m. 3.0 ppb (3) 0.3 ppb (1) 4.1 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (30) 0.17 ppb (3) 14.0 μg/m3 (13) 2.7 μg/m3 (12) 30.0
 
June 21, 2021, 10 a.m. 2.2 ppb (3) 0.3 ppb (1) 3.1 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 35.0 ppb (33) 0.16 ppb (3) 12.0 μg/m3 (12) -2.2 μg/m3 (0) 33.0
 
June 21, 2021, 9 a.m. 3.2 ppb (4) 0.3 ppb (1) 4.1 ppb (4) 4.0 ppb (4) N/A 0.0 ppb (0) 37.0 ppb (35) 0.16 ppb (3) 11.0 μg/m3 (11) -0.4 μg/m3 (0) 35.0
 
June 21, 2021, 8 a.m. 4.1 ppb (4) 0.3 ppb (1) 4.9 ppb (5) 5.0 ppb (5) N/A 0.0 ppb (0) 38.0 ppb (36) 0.16 ppb (3) 11.0 μg/m3 (11) -1.8 μg/m3 (0) 36.0
 
June 21, 2021, 7 a.m. 2.0 ppb (2) 0.3 ppb (1) 3.0 ppb (3) 3.0 ppb (3) N/A 0.0 ppb (0) 42.0 ppb (39) 0.16 ppb (3) 12.0 μg/m3 (12) 10.4 μg/m3 (44) 44.0
 
June 21, 2021, 6 a.m. 0.6 ppb (1) 0.3 ppb (1) 1.8 ppb (2) 1.0 ppb (1) N/A 0.0 ppb (0) 48.0 ppb (45) 0.14 ppb (2) 13.0 μg/m3 (13) 6.4 μg/m3 (27) 45.0
 
June 21, 2021, 5 a.m. 0.7 ppb (1) 0.3 ppb (1) 2.0 ppb (2) 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (40) 0.18 ppb (3) 27.0 μg/m3 (25) 12.1 μg/m3 (51) 51.0
 
June 21, 2021, 4 a.m. 2.8 ppb (3) 0.5 ppb (1) 3.7 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 36.0 ppb (34) 0.21 ppb (3) 25.0 μg/m3 (24) 11.0 μg/m3 (46) 46.0
 
June 21, 2021, 3 a.m. 3.5 ppb (4) 0.4 ppb (1) 5.1 ppb (5) 4.0 ppb (4) N/A 0.0 ppb (0) 35.0 ppb (33) 0.2 ppb (3) 25.0 μg/m3 (24) 15.6 μg/m3 (59) 59.0
 
June 21, 2021, 2 a.m. 2.9 ppb (3) 0.4 ppb (1) 4.4 ppb (5) 3.0 ppb (3) N/A 0.0 ppb (0) 38.0 ppb (36) 0.25 ppb (3) 28.0 μg/m3 (26) 10.7 μg/m3 (45) 45.0
 
June 21, 2021, 1 a.m. 2.8 ppb (3) 0.3 ppb (1) 4.4 ppb (5) 3.0 ppb (3) N/A 1.0 ppb (2) 40.0 ppb (38) 0.28 ppb (4) 27.0 μg/m3 (25) 15.3 μg/m3 (58) 58.0
 
June 21, 2021, midnight 1.7 ppb (2) 0.3 ppb (1) 3.4 ppb (4) 2.0 ppb (2) N/A 0.0 ppb (0) 41.0 ppb (38) 0.22 ppb (3) 28.0 μg/m3 (26) 11.4 μg/m3 (48) 48.0
 
June 20, 2021, 11 p.m. 1.0 ppb (1) 0.3 ppb (1) 3.0 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 43.0 ppb (40) 0.2 ppb (3) 33.0 μg/m3 (31) 11.3 μg/m3 (48) 48.0
 
June 20, 2021, 10 p.m. 0.8 ppb (1) 0.3 ppb (1) 3.3 ppb (4) 1.0 ppb (1) N/A 0.0 ppb (0) 45.0 ppb (42) 0.22 ppb (3) 26.0 μg/m3 (25) 16.2 μg/m3 (60) 60.0
 
June 20, 2021, 9 p.m. 0.9 ppb (1) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 47.0 ppb (44) 0.22 ppb (3) 25.0 μg/m3 (24) 13.9 μg/m3 (55) 55.0
 
June 20, 2021, 8 p.m. 1.2 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 46.0 ppb (43) 0.23 ppb (3) 26.0 μg/m3 (25) 9.1 μg/m3 (38) 43.0
 
June 20, 2021, 7 p.m. 0.7 ppb (1) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 45.0 ppb (42) 0.21 ppb (3) 25.0 μg/m3 (24) 10.7 μg/m3 (45) 45.0
 
June 20, 2021, 6 p.m. 0.4 ppb (1) 0.3 ppb (1) 3.0 ppb (3) 1.0 ppb (1) N/A 0.0 ppb (0) 45.0 ppb (42) 0.2 ppb (3) 25.0 μg/m3 (24) 14.9 μg/m3 (57) 57.0
 
June 20, 2021, 5 p.m. 0.8 ppb (1) 0.3 ppb (1) 3.8 ppb (4) 1.0 ppb (1) N/A 0.0 ppb (0) 46.0 ppb (43) 0.24 ppb (3) 28.0 μg/m3 (26) 16.6 μg/m3 (61) 61.0
 
June 20, 2021, 4 p.m. 1.0 ppb (1) 0.3 ppb (1) 4.4 ppb (5) 1.0 ppb (1) N/A 0.0 ppb (0) 49.0 ppb (46) 0.24 ppb (3) 28.0 μg/m3 (26) 17.0 μg/m3 (62) 62.0
 
June 20, 2021, 3 p.m. 0.8 ppb (1) 0.3 ppb (1) 4.2 ppb (4) 1.0 ppb (1) N/A N/A 46.0 ppb (43) 0.23 ppb (3) 29.0 μg/m3 (27) 15.6 μg/m3 (59) 59.0
 
June 20, 2021, 2 p.m. 1.9 ppb (2) 0.3 ppb (1) 4.8 ppb (5) 2.0 ppb (2) N/A N/A 38.0 ppb (36) 0.23 ppb (3) 29.0 μg/m3 (27) 14.9 μg/m3 (57) 57.0
 
June 20, 2021, 1 p.m. 5.7 ppb (6) 0.6 ppb (1) 8.4 ppb (8) 5.0 ppb (5) N/A 1.0 ppb (2) 33.0 ppb (31) 0.23 ppb (3) 27.0 μg/m3 (25) 11.6 μg/m3 (49) 49.0
 
June 20, 2021, noon 8.7 ppb (9) 0.9 ppb (1) 10.6 ppb (10) 8.0 ppb (8) N/A 1.0 ppb (2) 26.0 ppb (25) 0.22 ppb (3) 23.0 μg/m3 (22) 4.7 μg/m3 (20) 25.0
 
June 20, 2021, 11 a.m. 7.0 ppb (7) 0.4 ppb (1) 8.2 ppb (8) 7.0 ppb (7) N/A 1.0 ppb (2) 26.0 ppb (25) N/A 21.0 μg/m3 (20) 9.0 μg/m3 (38) 38.0
 
June 20, 2021, 10 a.m. 15.4 ppb (15) 0.3 ppb (1) 15.5 ppb (15) 16.0 ppb (16) N/A 1.0 ppb (2) 18.0 ppb (17) N/A 21.0 μg/m3 (20) 7.2 μg/m3 (31) 31.0
 
June 20, 2021, 9 a.m. 6.3 ppb (6) 0.3 ppb (1) 7.4 ppb (7) 7.0 ppb (7) N/A 0.0 ppb (0) 27.0 ppb (25) 0.2 ppb (3) 20.0 μg/m3 (19) 3.9 μg/m3 (17) 25.0
 
June 20, 2021, 8 a.m. 8.8 ppb (9) 0.4 ppb (1) 9.2 ppb (9) 9.0 ppb (9) N/A 1.0 ppb (2) N/A 0.22 ppb (3) 19.0 μg/m3 (18) 5.5 μg/m3 (23) 23.0
 
June 20, 2021, 7 a.m. 8.7 ppb (9) 0.3 ppb (1) 9.9 ppb (10) 9.0 ppb (9) N/A 1.0 ppb (2) 31.0 ppb (29) 0.28 ppb (4) 19.0 μg/m3 (18) 7.8 μg/m3 (33) 33.0
 
June 20, 2021, 6 a.m. 4.6 ppb (5) 0.3 ppb (1) 5.8 ppb (6) 5.0 ppb (5) N/A 1.0 ppb (2) 35.0 ppb (33) 0.2 ppb (3) 19.0 μg/m3 (18) 10.2 μg/m3 (43) 43.0
 
June 20, 2021, 5 a.m. 4.7 ppb (5) 0.3 ppb (1) 5.8 ppb (6) 5.0 ppb (5) N/A 1.0 ppb (2) 30.0 ppb (28) 0.21 ppb (3) 22.0 μg/m3 (21) 7.6 μg/m3 (32) 32.0
 
June 20, 2021, 4 a.m. 6.5 ppb (7) 0.3 ppb (1) 7.5 ppb (8) 7.0 ppb (7) N/A 0.0 ppb (0) 28.0 ppb (26) 0.22 ppb (3) 19.0 μg/m3 (18) 8.3 μg/m3 (35) 35.0
 
June 20, 2021, 3 a.m. 7.0 ppb (7) 0.3 ppb (1) 8.0 ppb (8) 7.0 ppb (7) N/A 0.0 ppb (0) 30.0 ppb (28) 0.24 ppb (3) 19.0 μg/m3 (18) 14.0 μg/m3 (55) 55.0
 
June 20, 2021, 2 a.m. 5.4 ppb (6) 0.3 ppb (1) 6.5 ppb (7) 6.0 ppb (6) N/A 0.0 ppb (0) 33.0 ppb (31) 0.25 ppb (3) 20.0 μg/m3 (19) 4.8 μg/m3 (20) 31.0
 
June 20, 2021, 1 a.m. 9.1 ppb (9) 0.3 ppb (1) 10.1 ppb (10) 10.0 ppb (10) N/A 0.0 ppb (0) 30.0 ppb (28) 0.29 ppb (4) 20.0 μg/m3 (19) 14.8 μg/m3 (57) 57.0
 
June 20, 2021, midnight 10.8 ppb (11) 0.6 ppb (1) 12.4 ppb (12) 11.0 ppb (11) N/A 0.0 ppb (0) 27.0 ppb (25) 0.28 ppb (4) 22.0 μg/m3 (21) 16.2 μg/m3 (60) 60.0
 
June 19, 2021, 11 p.m. 3.2 ppb (4) 0.4 ppb (1) 4.5 ppb (5) 4.0 ppb (4) N/A 0.0 ppb (0) 37.0 ppb (35) 0.23 ppb (3) 24.0 μg/m3 (23) 20.9 μg/m3 (70) 70.0
 
June 19, 2021, 10 p.m. 3.3 ppb (4) 0.4 ppb (1) 5.0 ppb (5) 4.0 ppb (4) N/A 0.0 ppb (0) 37.0 ppb (35) 0.22 ppb (3) 33.0 μg/m3 (31) 10.9 μg/m3 (46) 46.0
 
June 19, 2021, 9 p.m. 1.7 ppb (2) 0.3 ppb (1) 3.9 ppb (4) 2.0 ppb (2) N/A 1.0 ppb (2) 41.0 ppb (38) 0.28 ppb (4) 32.0 μg/m3 (30) 13.8 μg/m3 (55) 55.0
 
June 19, 2021, 8 p.m. 0.7 ppb (1) 0.3 ppb (1) 3.9 ppb (4) 1.0 ppb (1) N/A 2.0 ppb (3) 50.0 ppb (47) 0.23 ppb (3) 38.0 μg/m3 (36) 22.4 μg/m3 (73) 73.0
 
June 19, 2021, 7 p.m. 1.6 ppb (2) 0.3 ppb (1) 5.4 ppb (6) 2.0 ppb (2) N/A 3.0 ppb (5) 62.0 ppb (74) 0.25 ppb (3) 40.0 μg/m3 (38) 18.0 μg/m3 (64) 74.0
 
June 19, 2021, 6 p.m. 1.3 ppb (2) 0.4 ppb (1) 4.5 ppb (5) 2.0 ppb (2) N/A 1.0 ppb (2) 57.0 ppb (58) 0.21 ppb (3) 37.0 μg/m3 (35) 13.0 μg/m3 (53) 58.0
 
June 19, 2021, 5 p.m. 2.5 ppb (3) 0.4 ppb (1) 5.7 ppb (6) 3.0 ppb (3) N/A 1.0 ppb (2) 57.0 ppb (58) 0.22 ppb (3) 33.0 μg/m3 (31) 7.5 μg/m3 (32) 58.0
 
June 19, 2021, 4 p.m. 3.2 ppb (4) 0.5 ppb (1) 5.5 ppb (6) 3.0 ppb (3) N/A 1.0 ppb (2) 54.0 ppb (50) 0.18 ppb (3) 30.0 μg/m3 (28) 8.6 μg/m3 (36) 50.0
 
June 19, 2021, 3 p.m. 5.7 ppb (6) 0.7 ppb (1) 7.7 ppb (8) 5.0 ppb (5) N/A 0.0 ppb (0) 48.0 ppb (45) 0.19 ppb (3) 21.0 μg/m3 (20) 3.6 μg/m3 (16) 45.0
 
June 19, 2021, 2 p.m. 6.9 ppb (7) 0.4 ppb (1) 8.3 ppb (8) 7.0 ppb (7) N/A 0.0 ppb (0) 45.0 ppb (42) 0.18 ppb (3) 37.0 μg/m3 (35) 5.5 μg/m3 (23) 42.0
 
June 19, 2021, 1 p.m. 9.9 ppb (10) 0.6 ppb (1) 11.0 ppb (11) 10.0 ppb (10) N/A 0.0 ppb (0) 42.0 ppb (39) 0.2 ppb (3) 37.0 μg/m3 (35) 6.2 μg/m3 (26) 39.0
 
June 19, 2021, noon 9.7 ppb (10) 0.4 ppb (1) 11.0 ppb (11) 10.0 ppb (10) N/A 0.0 ppb (0) 40.0 ppb (38) 0.18 ppb (3) 35.0 μg/m3 (33) 6.6 μg/m3 (28) 38.0
 
June 19, 2021, 11 a.m. 10.0 ppb (10) 0.3 ppb (1) 11.0 ppb (11) 10.0 ppb (10) N/A 1.0 ppb (2) 39.0 ppb (37) 0.2 ppb (3) 51.0 μg/m3 (48) 8.3 μg/m3 (35) 48.0
 
June 19, 2021, 10 a.m. 1.6 ppb (2) 0.3 ppb (1) 3.5 ppb (4) 2.0 ppb (2) N/A 0.0 ppb (0) 40.0 ppb (38) 0.24 ppb (3) 32.0 μg/m3 (30) 16.7 μg/m3 (61) 61.0
 
June 19, 2021, 9 a.m. 0.4 ppb (1) 0.3 ppb (1) 2.2 ppb (3) 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (38) 0.22 ppb (3) 30.0 μg/m3 (28) 15.6 μg/m3 (59) 59.0
 
June 19, 2021, 8 a.m. 0.5 ppb (1) 0.3 ppb (1) 2.2 ppb (3) 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (38) 0.22 ppb (3) 30.0 μg/m3 (28) 15.5 μg/m3 (59) 59.0
 
June 19, 2021, 7 a.m. 0.4 ppb (1) 0.3 ppb (1) 2.0 ppb (2) 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (38) 0.22 ppb (3) 31.0 μg/m3 (29) 16.3 μg/m3 (60) 60.0
 
June 19, 2021, 6 a.m. 0.7 ppb (1) 0.3 ppb (1) 2.5 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (37) 0.22 ppb (3) 34.0 μg/m3 (32) 15.3 μg/m3 (58) 58.0
 
June 19, 2021, 5 a.m. 0.6 ppb (1) 0.3 ppb (1) 2.5 ppb (3) 1.0 ppb (1) N/A 0.0 ppb (0) 34.0 ppb (32) 0.32 ppb (4) 36.0 μg/m3 (34) 19.3 μg/m3 (67) 67.0
 
June 19, 2021, 4 a.m. 2.8 ppb (3) 0.3 ppb (1) 4.5 ppb (5) 4.0 ppb (4) N/A 0.0 ppb (0) 24.0 ppb (23) 0.26 ppb (4) 32.0 μg/m3 (30) 14.4 μg/m3 (56) 56.0
 
June 19, 2021, 3 a.m. 2.8 ppb (3) 0.3 ppb (1) 4.5 ppb (5) 4.0 ppb (4) N/A 0.0 ppb (0) 23.0 ppb (22) 0.25 ppb (3) 32.0 μg/m3 (30) 11.3 μg/m3 (48) 48.0
 
June 19, 2021, 2 a.m. 1.3 ppb (2) 0.3 ppb (1) 3.1 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 27.0 ppb (25) 0.26 ppb (4) 31.0 μg/m3 (29) 13.6 μg/m3 (55) 55.0
 
June 19, 2021, 1 a.m. 1.2 ppb (2) 0.4 ppb (1) 3.0 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (29) 0.25 ppb (3) 30.0 μg/m3 (28) 8.0 μg/m3 (34) 34.0
 
June 19, 2021, midnight 1.0 ppb (1) 0.4 ppb (1) 2.9 ppb (3) 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (36) 0.23 ppb (3) 31.0 μg/m3 (29) 9.9 μg/m3 (42) 42.0
 
June 18, 2021, 11 p.m. 0.9 ppb (1) 0.4 ppb (1) 3.1 ppb (3) 1.0 ppb (1) N/A 0.0 ppb (0) 52.0 ppb (49) 0.25 ppb (3) 30.0 μg/m3 (28) 10.9 μg/m3 (46) 49.0
 
June 18, 2021, 10 p.m. 0.5 ppb (1) 0.4 ppb (1) 3.0 ppb (3) 1.0 ppb (1) N/A 0.0 ppb (0) 52.0 ppb (49) 0.27 ppb (4) 28.0 μg/m3 (26) 8.4 μg/m3 (36) 49.0
 
June 18, 2021, 9 p.m. 0.7 ppb (1) 0.4 ppb (1) 3.2 ppb (4) 1.0 ppb (1) N/A 0.0 ppb (0) 51.0 ppb (48) 0.23 ppb (3) 32.0 μg/m3 (30) 7.4 μg/m3 (31) 48.0
 
June 18, 2021, 8 p.m. 1.1 ppb (2) 0.4 ppb (1) 3.9 ppb (4) 1.0 ppb (1) N/A 1.0 ppb (2) 55.0 ppb (51) 0.26 ppb (4) 32.0 μg/m3 (30) 9.9 μg/m3 (42) 51.0
 
June 18, 2021, 7 p.m. 1.3 ppb (2) 0.4 ppb (1) 4.3 ppb (5) 2.0 ppb (2) N/A 1.0 ppb (2) 60.0 ppb (68) 0.24 ppb (3) 37.0 μg/m3 (35) 9.0 μg/m3 (38) 68.0
 
June 18, 2021, 6 p.m. 2.3 ppb (3) 0.8 ppb (1) 4.7 ppb (5) 2.0 ppb (2) N/A 0.0 ppb (0) 57.0 ppb (58) 0.21 ppb (3) 35.0 μg/m3 (33) 12.3 μg/m3 (52) 58.0
 
June 18, 2021, 5 p.m. 0.8 ppb (1) 0.3 ppb (1) 3.6 ppb (4) 1.0 ppb (1) N/A 1.0 ppb (2) 55.0 ppb (51) 0.22 ppb (3) 30.0 μg/m3 (28) 10.0 μg/m3 (42) 51.0
 
June 18, 2021, 4 p.m. 2.1 ppb (2) 0.3 ppb (1) 5.8 ppb (6) 3.0 ppb (3) N/A 5.0 ppb (8) 64.0 ppb (81) 0.34 ppb (4) 32.0 μg/m3 (30) 12.1 μg/m3 (51) 81.0
 
June 18, 2021, 3 p.m. 2.4 ppb (3) 0.3 ppb (1) 5.6 ppb (6) 3.0 ppb (3) N/A 2.0 ppb (3) 54.0 ppb (50) 0.3 ppb (4) 36.0 μg/m3 (34) 19.6 μg/m3 (67) 67.0
 
June 18, 2021, 2 p.m. 4.7 ppb (5) 0.6 ppb (1) 7.8 ppb (8) 4.0 ppb (4) N/A 3.0 ppb (5) 50.0 ppb (47) 0.32 ppb (4) 36.0 μg/m3 (34) 18.3 μg/m3 (65) 65.0
 
June 18, 2021, 1 p.m. 6.5 ppb (7) 1.5 ppb (2) 8.9 ppb (9) 5.0 ppb (5) N/A 1.0 ppb (2) 40.0 ppb (38) 0.28 ppb (4) 39.0 μg/m3 (37) 17.6 μg/m3 (63) 63.0
 
June 18, 2021, noon 5.6 ppb (6) 0.7 ppb (1) 7.7 ppb (8) 5.0 ppb (5) N/A 0.0 ppb (0) 37.0 ppb (35) 0.46 ppb (6) 41.0 μg/m3 (38) 13.2 μg/m3 (54) 54.0
 
June 18, 2021, 11 a.m. 3.7 ppb (4) 0.3 ppb (1) 5.5 ppb (6) 4.0 ppb (4) N/A 0.0 ppb (0) 29.0 ppb (27) 0.27 ppb (4) 36.0 μg/m3 (34) 16.4 μg/m3 (61) 61.0
 
June 18, 2021, 10 a.m. 1.5 ppb (2) 0.3 ppb (1) 3.2 ppb (4) 2.0 ppb (2) N/A 0.0 ppb (0) 27.0 ppb (25) 0.25 ppb (3) 28.0 μg/m3 (26) 14.5 μg/m3 (57) 57.0
 
June 18, 2021, 9 a.m. 1.4 ppb (2) 0.3 ppb (1) 3.2 ppb (4) 2.0 ppb (2) N/A 0.0 ppb (0) 25.0 ppb (24) 0.25 ppb (3) 28.0 μg/m3 (26) 14.3 μg/m3 (56) 56.0
 
June 18, 2021, 8 a.m. 2.1 ppb (2) 0.5 ppb (1) 3.6 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (24) 0.25 ppb (3) 28.0 μg/m3 (26) 15.0 μg/m3 (58) 58.0
 
June 18, 2021, 7 a.m. 1.7 ppb (2) 0.3 ppb (1) 3.6 ppb (4) 2.0 ppb (2) N/A 0.0 ppb (0) 25.0 ppb (24) 0.26 ppb (4) 31.0 μg/m3 (29) 13.4 μg/m3 (54) 54.0
 
June 18, 2021, 6 a.m. 3.4 ppb (4) 0.3 ppb (1) 5.4 ppb (6) 4.0 ppb (4) N/A 0.0 ppb (0) 25.0 ppb (24) 0.27 ppb (4) 33.0 μg/m3 (31) 17.9 μg/m3 (64) 64.0
 
June 18, 2021, 5 a.m. 3.6 ppb (4) 0.3 ppb (1) 5.6 ppb (6) 4.0 ppb (4) N/A 0.0 ppb (0) 26.0 ppb (25) 0.23 ppb (3) 30.0 μg/m3 (28) 13.6 μg/m3 (55) 55.0
 
June 18, 2021, 4 a.m. 6.7 ppb (7) 0.5 ppb (1) 8.7 ppb (9) 7.0 ppb (7) N/A 0.0 ppb (0) 26.0 ppb (25) 0.25 ppb (3) 35.0 μg/m3 (33) 14.4 μg/m3 (56) 56.0
 
June 18, 2021, 3 a.m. 10.7 ppb (11) 0.3 ppb (1) 12.6 ppb (12) 11.0 ppb (11) N/A 0.0 ppb (0) 23.0 ppb (22) 0.27 ppb (4) 38.0 μg/m3 (36) 12.6 μg/m3 (53) 53.0
 
June 18, 2021, 2 a.m. 3.5 ppb (4) 0.3 ppb (1) 5.7 ppb (6) 4.0 ppb (4) N/A 0.0 ppb (0) 32.0 ppb (30) 0.25 ppb (3) 35.0 μg/m3 (33) 13.5 μg/m3 (54) 54.0
 
June 18, 2021, 1 a.m. 3.4 ppb (4) 0.3 ppb (1) 5.8 ppb (6) 4.0 ppb (4) N/A 0.0 ppb (0) 41.0 ppb (38) 0.26 ppb (4) 36.0 μg/m3 (34) 10.0 μg/m3 (42) 42.0
 
June 18, 2021, midnight 3.4 ppb (4) 0.3 ppb (1) 5.8 ppb (6) 4.0 ppb (4) N/A 1.0 ppb (2) 45.0 ppb (42) 0.25 ppb (3) 40.0 μg/m3 (38) 15.8 μg/m3 (59) 59.0
 
June 17, 2021, 11 p.m. 1.8 ppb (2) 0.3 ppb (1) 5.4 ppb (6) 2.0 ppb (2) N/A 2.0 ppb (3) 57.0 ppb (58) 0.2 ppb (3) 36.0 μg/m3 (34) 11.9 μg/m3 (50) 58.0
 
June 17, 2021, 10 p.m. 1.8 ppb (2) 0.3 ppb (1) 5.2 ppb (5) 2.0 ppb (2) N/A 1.0 ppb (2) 58.0 ppb (61) 0.19 ppb (3) 37.0 μg/m3 (35) 7.6 μg/m3 (32) 61.0
 
June 17, 2021, 9 p.m. 2.2 ppb (3) 0.4 ppb (1) 6.5 ppb (7) 2.0 ppb (2) N/A 1.0 ppb (2) 62.0 ppb (74) 0.2 ppb (3) 38.0 μg/m3 (36) 12.6 μg/m3 (53) 74.0
 
June 17, 2021, 8 p.m. 2.8 ppb (3) 0.4 ppb (1) 6.9 ppb (7) 3.0 ppb (3) N/A 2.0 ppb (3) 64.0 ppb (81) 0.2 ppb (3) 42.0 μg/m3 (39) 15.1 μg/m3 (58) 81.0
 
June 17, 2021, 7 p.m. 3.6 ppb (4) 0.9 ppb (1) 7.5 ppb (8) 3.0 ppb (3) N/A 4.0 ppb (6) 72.0 ppb (102) 0.22 ppb (3) 47.0 μg/m3 (44) 10.4 μg/m3 (44) 102.0
 
June 17, 2021, 6 p.m. 2.4 ppb (3) 0.3 ppb (1) 6.7 ppb (7) 3.0 ppb (3) N/A 7.0 ppb (10) 74.0 ppb (103) 0.23 ppb (3) 47.0 μg/m3 (44) 11.7 μg/m3 (49) 103.0
 
June 17, 2021, 5 p.m. 2.6 ppb (3) 0.3 ppb (1) 6.3 ppb (6) 3.0 ppb (3) N/A 3.0 ppb (5) 66.0 ppb (87) 0.23 ppb (3) 45.0 μg/m3 (42) 9.9 μg/m3 (42) 87.0
 
June 17, 2021, 4 p.m. 5.1 ppb (5) 0.7 ppb (1) 8.6 ppb (9) 5.0 ppb (5) N/A 2.0 ppb (3) 64.0 ppb (81) 0.24 ppb (3) 44.0 μg/m3 (41) 15.6 μg/m3 (59) 81.0
 
June 17, 2021, 3 p.m. 7.6 ppb (8) 0.9 ppb (1) 11.1 ppb (11) 7.0 ppb (7) N/A 2.0 ppb (3) 60.0 ppb (68) 0.24 ppb (3) 43.0 μg/m3 (40) 10.5 μg/m3 (44) 68.0
 
June 17, 2021, 2 p.m. 11.3 ppb (11) 1.8 ppb (2) 14.6 ppb (14) 10.0 ppb (10) N/A 2.0 ppb (3) 50.0 ppb (47) 0.23 ppb (3) 48.0 μg/m3 (45) 13.8 μg/m3 (55) 55.0
 
June 17, 2021, 1 p.m. 20.7 ppb (20) 4.1 ppb (4) 22.2 ppb (21) 17.0 ppb (17) N/A 1.0 ppb (2) 36.0 ppb (34) 0.28 ppb (4) 59.0 μg/m3 (53) 13.7 μg/m3 (55) 55.0
 
June 17, 2021, noon 31.4 ppb (30) 5.6 ppb (6) 31.8 ppb (30) 26.0 ppb (25) N/A 1.0 ppb (2) 22.0 ppb (21) 0.3 ppb (4) 71.0 μg/m3 (59) 13.0 μg/m3 (53) 59.0
 
June 17, 2021, 11 a.m. 31.5 ppb (30) 3.9 ppb (4) 31.3 ppb (30) 28.0 ppb (27) N/A 4.0 ppb (6) 21.0 ppb (20) 0.27 ppb (4) 48.0 μg/m3 (45) 12.6 μg/m3 (53) 53.0
 
June 17, 2021, 10 a.m. 22.9 ppb (22) 0.6 ppb (1) 23.0 ppb (22) 23.0 ppb (22) N/A 2.0 ppb (3) 25.0 ppb (24) 0.28 ppb (4) 34.0 μg/m3 (32) 9.7 μg/m3 (41) 41.0
 
June 17, 2021, 9 a.m. 14.4 ppb (14) 0.6 ppb (1) 14.9 ppb (15) 15.0 ppb (15) N/A 1.0 ppb (2) 34.0 ppb (32) 0.2 ppb (3) 30.0 μg/m3 (28) 7.9 μg/m3 (33) 33.0
 
June 17, 2021, 8 a.m. 11.7 ppb (12) 0.3 ppb (1) 13.3 ppb (13) 12.0 ppb (12) N/A 1.0 ppb (2) 38.0 ppb (36) 0.19 ppb (3) 26.0 μg/m3 (25) 6.6 μg/m3 (28) 36.0
 
June 17, 2021, 7 a.m. 20.3 ppb (20) 0.3 ppb (1) 20.3 ppb (20) 21.0 ppb (20) N/A 1.0 ppb (2) 31.0 ppb (29) 0.21 ppb (3) 27.0 μg/m3 (25) 9.1 μg/m3 (38) 38.0
 
June 17, 2021, 6 a.m. 15.5 ppb (15) 0.3 ppb (1) 16.6 ppb (16) 16.0 ppb (16) N/A 0.0 ppb (0) 31.0 ppb (29) 0.27 ppb (4) 26.0 μg/m3 (25) 6.8 μg/m3 (29) 29.0
 
June 17, 2021, 5 a.m. 17.5 ppb (17) 0.3 ppb (1) 17.9 ppb (17) 18.0 ppb (17) N/A 0.0 ppb (0) 34.0 ppb (32) 0.29 ppb (4) 26.0 μg/m3 (25) 10.7 μg/m3 (45) 45.0
 
June 17, 2021, 4 a.m. 31.4 ppb (30) 0.9 ppb (1) 30.6 ppb (29) 31.0 ppb (30) N/A 0.0 ppb (0) 24.0 ppb (23) 0.28 ppb (4) 30.0 μg/m3 (28) 10.1 μg/m3 (43) 43.0
 
June 17, 2021, 3 a.m. 37.3 ppb (36) 1.5 ppb (2) 35.1 ppb (34) 36.0 ppb (34) N/A 0.0 ppb (0) 20.0 ppb (19) 0.24 ppb (3) 34.0 μg/m3 (32) 10.6 μg/m3 (45) 45.0
 
June 17, 2021, 2 a.m. 29.3 ppb (28) 0.5 ppb (1) 28.0 ppb (27) 29.0 ppb (28) N/A 0.0 ppb (0) 28.0 ppb (26) 0.26 ppb (4) 30.0 μg/m3 (28) 6.2 μg/m3 (26) 28.0
 
June 17, 2021, 1 a.m. 12.3 ppb (12) 0.3 ppb (1) 14.3 ppb (14) 12.0 ppb (12) N/A 0.0 ppb (0) 45.0 ppb (42) 0.2 ppb (3) 24.0 μg/m3 (23) 4.2 μg/m3 (18) 42.0
 
June 17, 2021, midnight 4.5 ppb (5) 0.3 ppb (1) 6.0 ppb (6) 5.0 ppb (5) N/A 0.0 ppb (0) 56.0 ppb (55) 0.17 ppb (3) 19.0 μg/m3 (18) 3.9 μg/m3 (17) 55.0
 
June 16, 2021, 11 p.m. 4.1 ppb (4) 0.4 ppb (1) 6.2 ppb (6) 4.0 ppb (4) N/A 0.0 ppb (0) 58.0 ppb (61) 0.17 ppb (3) 24.0 μg/m3 (23) 5.8 μg/m3 (25) 61.0
 
June 16, 2021, 10 p.m. 3.7 ppb (4) 0.5 ppb (1) 6.1 ppb (6) 3.0 ppb (3) N/A 0.0 ppb (0) 59.0 ppb (65) 0.18 ppb (3) 29.0 μg/m3 (27) 4.0 μg/m3 (17) 65.0
 
June 16, 2021, 9 p.m. 5.2 ppb (5) 0.8 ppb (1) 7.3 ppb (7) 5.0 ppb (5) N/A 0.0 ppb (0) 60.0 ppb (68) 0.18 ppb (3) 31.0 μg/m3 (29) 4.8 μg/m3 (20) 68.0
 
June 16, 2021, 8 p.m. 4.3 ppb (5) 0.8 ppb (1) 6.9 ppb (7) 4.0 ppb (4) N/A 1.0 ppb (2) 59.0 ppb (65) 0.17 ppb (3) 29.0 μg/m3 (27) 10.6 μg/m3 (45) 65.0
 
June 16, 2021, 7 p.m. 7.5 ppb (8) 1.8 ppb (2) 10.4 ppb (10) 6.0 ppb (6) N/A 1.0 ppb (2) 57.0 ppb (58) 0.2 ppb (3) 38.0 μg/m3 (36) 11.7 μg/m3 (49) 58.0
 
June 16, 2021, 6 p.m. 8.7 ppb (9) 2.0 ppb (2) 11.5 ppb (11) 7.0 ppb (7) N/A 1.0 ppb (2) 57.0 ppb (58) 0.2 ppb (3) 43.0 μg/m3 (40) 9.7 μg/m3 (41) 58.0
 
June 16, 2021, 5 p.m. 9.0 ppb (9) 2.6 ppb (3) 12.2 ppb (12) 7.0 ppb (7) N/A 3.0 ppb (5) 55.0 ppb (51) 0.23 ppb (3) 37.0 μg/m3 (35) 10.0 μg/m3 (42) 51.0