ID: 688

AQSQID: 401091037

Site Name: North Okc

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

Updated: Sept. 21, 2021, 5:04 p.m.

Location: Edmond (University House), OK

Reporting: True, Located: True

Current AQI: 34.0

Edmond (University House) OK, US: 35.612801, -97.472198

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 21, 2021, 3 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 36.0 ppb (34) 0.3 ppb (4) 27.0 μg/m3 (25) 6.2 μg/m3 (26) 34.0
 
Sept. 21, 2021, 2 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 34.0 ppb (32) 0.3 ppb (4) 21.0 μg/m3 (20) 6.2 μg/m3 (26) 32.0
 
Sept. 21, 2021, 1 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (34) 0.3 ppb (4) 16.0 μg/m3 (15) 5.2 μg/m3 (22) 34.0
 
Sept. 21, 2021, noon 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (37) 0.3 ppb (4) 17.0 μg/m3 (16) 4.8 μg/m3 (20) 37.0
 
Sept. 21, 2021, 11 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (38) 0.3 ppb (4) 15.0 μg/m3 (14) 4.6 μg/m3 (20) 38.0
 
Sept. 21, 2021, 10 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (38) 0.3 ppb (4) 18.0 μg/m3 (17) 5.6 μg/m3 (24) 38.0
 
Sept. 21, 2021, 9 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (37) 0.3 ppb (4) 28.0 μg/m3 (26) 8.1 μg/m3 (34) 37.0
 
Sept. 21, 2021, 8 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (34) 0.4 ppb (5) 37.0 μg/m3 (35) 11.4 μg/m3 (48) 48.0
 
Sept. 21, 2021, 7 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (38) 0.4 ppb (5) 42.0 μg/m3 (39) 12.4 μg/m3 (52) 52.0
 
Sept. 21, 2021, 6 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (40) 0.4 ppb (5) 69.0 μg/m3 (58) 13.7 μg/m3 (55) 58.0
 
Sept. 21, 2021, 5 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 44.0 ppb (41) 0.3 ppb (4) 63.0 μg/m3 (55) 14.0 μg/m3 (55) 55.0
 
Sept. 21, 2021, 4 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 49.0 ppb (46) 0.3 ppb (4) 52.0 μg/m3 (49) 15.2 μg/m3 (58) 58.0
 
Sept. 21, 2021, 3 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 51.0 ppb (48) 0.4 ppb (5) 52.0 μg/m3 (49) 13.6 μg/m3 (55) 55.0
 
Sept. 21, 2021, 2 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 48.0 ppb (45) 0.4 ppb (5) 61.0 μg/m3 (54) 12.9 μg/m3 (53) 54.0
 
Sept. 21, 2021, 1 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 50.0 ppb (47) 0.4 ppb (5) 58.0 μg/m3 (53) 12.7 μg/m3 (53) 53.0
 
Sept. 21, 2021, midnight 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 55.0 ppb (51) 0.4 ppb (5) 56.0 μg/m3 (52) 12.8 μg/m3 (53) 53.0
 
Sept. 20, 2021, 11 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 58.0 ppb (61) 0.4 ppb (5) 66.0 μg/m3 (57) 12.9 μg/m3 (53) 61.0
 
Sept. 20, 2021, 10 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 58.0 ppb (61) 0.4 ppb (5) 36.0 μg/m3 (34) 10.4 μg/m3 (44) 61.0
 
Sept. 20, 2021, 9 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 59.0 ppb (65) 0.4 ppb (5) 43.0 μg/m3 (40) 11.3 μg/m3 (48) 65.0
 
Sept. 20, 2021, 8 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 62.0 ppb (74) 0.4 ppb (5) 42.0 μg/m3 (39) 12.2 μg/m3 (52) 74.0
 
Sept. 20, 2021, 7 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 59.0 ppb (65) 0.4 ppb (5) 33.0 μg/m3 (31) 12.0 μg/m3 (50) 65.0
 
Sept. 20, 2021, 6 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 57.0 ppb (58) 0.4 ppb (5) 46.0 μg/m3 (43) 12.6 μg/m3 (53) 58.0
 
Sept. 20, 2021, 5 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 53.0 ppb (50) 0.4 ppb (5) 38.0 μg/m3 (36) 12.4 μg/m3 (52) 52.0
 
Sept. 20, 2021, 4 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 48.0 ppb (45) 0.4 ppb (5) 45.0 μg/m3 (42) 13.0 μg/m3 (53) 53.0
 
Sept. 20, 2021, 3 p.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 39.0 ppb (37) 0.4 ppb (5) 35.0 μg/m3 (33) 13.0 μg/m3 (53) 53.0
 
Sept. 20, 2021, 2 p.m. 5.0 ppb (5) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 33.0 ppb (31) 0.5 ppb (6) 43.0 μg/m3 (40) 13.3 μg/m3 (54) 54.0
 
Sept. 20, 2021, 1 p.m. 6.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 27.0 ppb (25) 0.5 ppb (6) 38.0 μg/m3 (36) 13.7 μg/m3 (55) 55.0
 
Sept. 20, 2021, noon 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 27.0 ppb (25) 0.4 ppb (5) 25.0 μg/m3 (24) 12.8 μg/m3 (53) 53.0
 
Sept. 20, 2021, 11 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (27) 0.4 ppb (5) 19.0 μg/m3 (18) 11.6 μg/m3 (49) 49.0
 
Sept. 20, 2021, 10 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (28) 0.4 ppb (5) 18.0 μg/m3 (17) 11.0 μg/m3 (46) 46.0
 
Sept. 20, 2021, 9 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (29) 0.4 ppb (5) 18.0 μg/m3 (17) 11.3 μg/m3 (48) 48.0
 
Sept. 20, 2021, 8 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 31.0 ppb (29) 0.4 ppb (5) 20.0 μg/m3 (19) 10.4 μg/m3 (44) 44.0
 
Sept. 20, 2021, 7 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (28) 0.3 ppb (4) 17.0 μg/m3 (16) 8.5 μg/m3 (36) 36.0
 
Sept. 20, 2021, 6 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (30) 0.3 ppb (4) 17.0 μg/m3 (16) 8.0 μg/m3 (34) 34.0
 
Sept. 20, 2021, 5 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (33) 0.3 ppb (4) 14.0 μg/m3 (13) 7.3 μg/m3 (31) 33.0
 
Sept. 20, 2021, 4 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 36.0 ppb (34) 0.3 ppb (4) 18.0 μg/m3 (17) 8.0 μg/m3 (34) 34.0
 
Sept. 20, 2021, 3 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 37.0 ppb (35) 0.4 ppb (5) 19.0 μg/m3 (18) 9.1 μg/m3 (38) 38.0
 
Sept. 20, 2021, 2 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 42.0 ppb (39) 0.4 ppb (5) 19.0 μg/m3 (18) 9.6 μg/m3 (40) 40.0
 
Sept. 20, 2021, 1 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 42.0 ppb (39) 0.4 ppb (5) 20.0 μg/m3 (19) 9.1 μg/m3 (38) 39.0
 
Sept. 20, 2021, midnight 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 48.0 ppb (45) 0.4 ppb (5) 18.0 μg/m3 (17) 8.7 μg/m3 (37) 45.0
 
Sept. 19, 2021, 11 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 56.0 ppb (55) 0.4 ppb (5) 18.0 μg/m3 (17) 9.0 μg/m3 (38) 55.0
 
Sept. 19, 2021, 10 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 60.0 ppb (68) 0.4 ppb (5) 20.0 μg/m3 (19) 9.7 μg/m3 (41) 68.0
 
Sept. 19, 2021, 9 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 62.0 ppb (74) 0.4 ppb (5) 18.0 μg/m3 (17) 9.6 μg/m3 (40) 74.0
 
Sept. 19, 2021, 8 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 62.0 ppb (74) 0.4 ppb (5) 17.0 μg/m3 (16) 9.7 μg/m3 (41) 74.0
 
Sept. 19, 2021, 7 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 63.0 ppb (78) 0.4 ppb (5) 18.0 μg/m3 (17) 10.5 μg/m3 (44) 78.0
 
Sept. 19, 2021, 6 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 59.0 ppb (65) 0.4 ppb (5) 18.0 μg/m3 (17) 10.5 μg/m3 (44) 65.0
 
Sept. 19, 2021, 5 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 51.0 ppb (48) 0.4 ppb (5) 18.0 μg/m3 (17) 9.3 μg/m3 (39) 48.0
 
Sept. 19, 2021, 4 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 44.0 ppb (41) 0.4 ppb (5) 17.0 μg/m3 (16) 9.3 μg/m3 (39) 41.0
 
Sept. 19, 2021, 3 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 38.0 ppb (36) 0.4 ppb (5) 15.0 μg/m3 (14) 9.1 μg/m3 (38) 38.0
 
Sept. 19, 2021, 2 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (25) 0.4 ppb (5) 19.0 μg/m3 (18) 9.5 μg/m3 (40) 40.0
 
Sept. 19, 2021, 1 p.m. 6.0 ppb (6) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 19.0 ppb (18) 0.4 ppb (5) 23.0 μg/m3 (22) 10.8 μg/m3 (46) 46.0
 
Sept. 19, 2021, noon 9.0 ppb (9) 0.0 ppb (0) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 12.0 ppb (12) 0.4 ppb (5) 19.0 μg/m3 (18) 10.9 μg/m3 (46) 46.0
 
Sept. 19, 2021, 11 a.m. 13.0 ppb (13) 1.0 ppb (1) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 13.0 ppb (13) 0.5 ppb (6) 21.0 μg/m3 (20) 11.8 μg/m3 (50) 50.0
 
Sept. 19, 2021, 10 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 18.0 ppb (17) 0.4 ppb (5) 21.0 μg/m3 (20) 12.0 μg/m3 (50) 50.0
 
Sept. 19, 2021, 9 a.m. 7.0 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 20.0 ppb (19) 0.4 ppb (5) 24.0 μg/m3 (23) 12.5 μg/m3 (52) 52.0
 
Sept. 19, 2021, 8 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 19.0 ppb (18) 0.4 ppb (5) 32.0 μg/m3 (30) 19.5 μg/m3 (67) 67.0
 
Sept. 19, 2021, 7 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 24.0 ppb (23) 0.4 ppb (5) 27.0 μg/m3 (25) 13.3 μg/m3 (54) 54.0
 
Sept. 19, 2021, 6 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 25.0 ppb (24) 0.4 ppb (5) 25.0 μg/m3 (24) 11.1 μg/m3 (47) 47.0
 
Sept. 19, 2021, 5 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 33.0 ppb (31) 0.4 ppb (5) 23.0 μg/m3 (22) 10.9 μg/m3 (46) 46.0
 
Sept. 19, 2021, 4 a.m. 7.0 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 33.0 ppb (31) 0.4 ppb (5) 24.0 μg/m3 (23) 10.8 μg/m3 (46) 46.0
 
Sept. 19, 2021, 3 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 38.0 ppb (36) 0.4 ppb (5) 24.0 μg/m3 (23) 11.1 μg/m3 (47) 47.0
 
Sept. 19, 2021, 2 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 43.0 ppb (40) 0.4 ppb (5) 18.0 μg/m3 (17) 9.0 μg/m3 (38) 40.0
 
Sept. 19, 2021, 1 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 43.0 ppb (40) 0.4 ppb (5) 21.0 μg/m3 (20) 8.5 μg/m3 (36) 40.0
 
Sept. 19, 2021, midnight 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 48.0 ppb (45) 0.4 ppb (5) 16.0 μg/m3 (15) 8.0 μg/m3 (34) 45.0
 
Sept. 18, 2021, 11 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 55.0 ppb (51) 0.3 ppb (4) 18.0 μg/m3 (17) 8.5 μg/m3 (36) 51.0
 
Sept. 18, 2021, 10 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 59.0 ppb (65) 0.3 ppb (4) 23.0 μg/m3 (22) 10.7 μg/m3 (45) 65.0
 
Sept. 18, 2021, 9 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 61.0 ppb (71) 0.3 ppb (4) 28.0 μg/m3 (26) 11.0 μg/m3 (46) 71.0
 
Sept. 18, 2021, 8 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 59.0 ppb (65) 0.3 ppb (4) 23.0 μg/m3 (22) 11.1 μg/m3 (47) 65.0
 
Sept. 18, 2021, 7 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 59.0 ppb (65) 0.3 ppb (4) 28.0 μg/m3 (26) 10.9 μg/m3 (46) 65.0
 
Sept. 18, 2021, 6 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 57.0 ppb (58) 0.3 ppb (4) 25.0 μg/m3 (24) 13.1 μg/m3 (54) 58.0
 
Sept. 18, 2021, 5 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 57.0 ppb (58) 0.4 ppb (5) 27.0 μg/m3 (25) 14.0 μg/m3 (55) 58.0
 
Sept. 18, 2021, 4 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 55.0 ppb (51) 0.4 ppb (5) 22.0 μg/m3 (21) 14.1 μg/m3 (56) 56.0
 
Sept. 18, 2021, 3 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 45.0 ppb (42) 0.4 ppb (5) 29.0 μg/m3 (27) 15.8 μg/m3 (59) 59.0
 
Sept. 18, 2021, 2 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 36.0 ppb (34) 0.4 ppb (5) 27.0 μg/m3 (25) 16.9 μg/m3 (62) 62.0
 
Sept. 18, 2021, 1 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 32.0 ppb (30) 0.4 ppb (5) 38.0 μg/m3 (36) 17.4 μg/m3 (63) 63.0
 
Sept. 18, 2021, noon 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 28.0 ppb (26) 0.4 ppb (5) 43.0 μg/m3 (40) 17.4 μg/m3 (63) 63.0
 
Sept. 18, 2021, 11 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 28.0 ppb (26) 0.4 ppb (5) 29.0 μg/m3 (27) 16.7 μg/m3 (61) 61.0
 
Sept. 18, 2021, 10 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (28) 0.4 ppb (5) 29.0 μg/m3 (27) 16.3 μg/m3 (60) 60.0
 
Sept. 18, 2021, 9 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 30.0 ppb (28) 0.4 ppb (5) 29.0 μg/m3 (27) 15.9 μg/m3 (59) 59.0
 
Sept. 18, 2021, 8 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 23.0 ppb (22) 0.4 ppb (5) 29.0 μg/m3 (27) 15.9 μg/m3 (59) 59.0
 
Sept. 18, 2021, 7 a.m. 8.0 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 17.0 ppb (16) 0.4 ppb (5) 30.0 μg/m3 (28) 15.9 μg/m3 (59) 59.0
 
Sept. 18, 2021, 6 a.m. 8.0 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 21.0 ppb (20) 0.4 ppb (5) 29.0 μg/m3 (27) 14.9 μg/m3 (57) 57.0
 
Sept. 18, 2021, 5 a.m. 8.0 ppb (8) 0.0 ppb (0) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 19.0 ppb (18) 0.4 ppb (5) 31.0 μg/m3 (29) 14.5 μg/m3 (57) 57.0
 
Sept. 18, 2021, 4 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 26.0 ppb (25) 0.4 ppb (5) 29.0 μg/m3 (27) 14.3 μg/m3 (56) 56.0
 
Sept. 18, 2021, 3 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 32.0 ppb (30) 0.3 ppb (4) 30.0 μg/m3 (28) 13.8 μg/m3 (55) 55.0
 
Sept. 18, 2021, 2 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 34.0 ppb (32) 0.4 ppb (5) 30.0 μg/m3 (28) 12.8 μg/m3 (53) 53.0
 
Sept. 18, 2021, 1 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 34.0 ppb (32) 0.4 ppb (5) 27.0 μg/m3 (25) 12.7 μg/m3 (53) 53.0
 
Sept. 18, 2021, midnight 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 40.0 ppb (38) 0.4 ppb (5) 25.0 μg/m3 (24) 12.0 μg/m3 (50) 50.0
 
Sept. 17, 2021, 11 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 45.0 ppb (42) 0.3 ppb (4) 24.0 μg/m3 (23) 11.9 μg/m3 (50) 50.0
 
Sept. 17, 2021, 10 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 46.0 ppb (43) 0.3 ppb (4) 25.0 μg/m3 (24) 11.6 μg/m3 (49) 49.0
 
Sept. 17, 2021, 9 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 45.0 ppb (42) 0.3 ppb (4) 27.0 μg/m3 (25) 11.6 μg/m3 (49) 49.0
 
Sept. 17, 2021, 8 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 52.0 ppb (49) 0.3 ppb (4) 22.0 μg/m3 (21) 10.9 μg/m3 (46) 49.0
 
Sept. 17, 2021, 7 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 45.0 ppb (42) 0.4 ppb (5) 21.0 μg/m3 (20) 10.6 μg/m3 (45) 45.0
 
Sept. 17, 2021, 6 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 45.0 ppb (42) 0.4 ppb (5) 19.0 μg/m3 (18) 10.5 μg/m3 (44) 44.0
 
Sept. 17, 2021, 5 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 50.0 ppb (47) 0.4 ppb (5) 24.0 μg/m3 (23) 11.1 μg/m3 (47) 47.0
 
Sept. 17, 2021, 4 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 46.0 ppb (43) N/A 33.0 μg/m3 (31) 11.5 μg/m3 (48) 48.0
 
Sept. 17, 2021, 3 p.m. 8.0 ppb (8) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A 34.0 μg/m3 (32) 12.1 μg/m3 (51) 51.0
 
Sept. 17, 2021, 2 p.m. 10.0 ppb (10) 2.0 ppb (2) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 25.0 ppb (24) 0.9 ppb (11) 33.0 μg/m3 (31) 12.5 μg/m3 (52) 52.0
 
Sept. 17, 2021, 1 p.m. 10.0 ppb (10) 1.0 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 18.0 ppb (17) 0.9 ppb (11) 31.0 μg/m3 (29) 13.1 μg/m3 (54) 54.0
 
Sept. 17, 2021, noon 8.0 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 17.0 ppb (16) 0.9 ppb (11) 26.0 μg/m3 (25) 12.7 μg/m3 (53) 53.0
 
Sept. 17, 2021, 11 a.m. 8.0 ppb (8) 0.0 ppb (0) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 18.0 ppb (17) 0.9 ppb (11) 23.0 μg/m3 (22) 12.7 μg/m3 (53) 53.0
 
Sept. 17, 2021, 10 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 21.0 ppb (20) 0.8 ppb (10) 21.0 μg/m3 (20) 12.2 μg/m3 (52) 52.0
 
Sept. 17, 2021, 9 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 23.0 ppb (22) 0.8 ppb (10) 23.0 μg/m3 (22) 12.1 μg/m3 (51) 51.0
 
Sept. 17, 2021, 8 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 24.0 ppb (23) 0.8 ppb (10) 23.0 μg/m3 (22) 11.7 μg/m3 (49) 49.0
 
Sept. 17, 2021, 7 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 24.0 ppb (23) 0.8 ppb (10) 24.0 μg/m3 (23) 11.5 μg/m3 (48) 48.0
 
Sept. 17, 2021, 6 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 26.0 ppb (25) 0.8 ppb (10) 22.0 μg/m3 (21) 11.1 μg/m3 (47) 47.0
 
Sept. 17, 2021, 5 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 25.0 ppb (24) 0.9 ppb (11) 23.0 μg/m3 (22) 11.2 μg/m3 (47) 47.0
 
Sept. 17, 2021, 4 a.m. 8.0 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 22.0 ppb (21) 0.9 ppb (11) 27.0 μg/m3 (25) 12.0 μg/m3 (50) 50.0
 
Sept. 17, 2021, 3 a.m. 8.0 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 22.0 ppb (21) 0.9 ppb (11) 27.0 μg/m3 (25) 12.3 μg/m3 (52) 52.0
 
Sept. 17, 2021, 2 a.m. 7.0 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 24.0 ppb (23) 0.9 ppb (11) 26.0 μg/m3 (25) 11.6 μg/m3 (49) 49.0
 
Sept. 17, 2021, 1 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 27.0 ppb (25) 0.9 ppb (11) 24.0 μg/m3 (23) 10.4 μg/m3 (44) 44.0
 
Sept. 17, 2021, midnight 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 30.0 ppb (28) 0.9 ppb (11) 22.0 μg/m3 (21) 9.5 μg/m3 (40) 40.0
 
Sept. 16, 2021, 11 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (35) 0.8 ppb (10) 22.0 μg/m3 (21) 8.8 μg/m3 (37) 37.0
 
Sept. 16, 2021, 10 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 47.0 ppb (44) 0.8 ppb (10) 20.0 μg/m3 (19) 8.0 μg/m3 (34) 44.0
 
Sept. 16, 2021, 9 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 52.0 ppb (49) 0.8 ppb (10) 28.0 μg/m3 (26) 9.0 μg/m3 (38) 49.0
 
Sept. 16, 2021, 8 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 52.0 ppb (49) 0.8 ppb (10) 32.0 μg/m3 (30) 10.1 μg/m3 (43) 49.0
 
Sept. 16, 2021, 7 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 53.0 ppb (50) 0.8 ppb (10) 26.0 μg/m3 (25) 10.1 μg/m3 (43) 50.0
 
Sept. 16, 2021, 6 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 56.0 ppb (55) 0.9 ppb (11) 35.0 μg/m3 (33) 10.6 μg/m3 (45) 55.0
 
Sept. 16, 2021, 5 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 54.0 ppb (50) 0.9 ppb (11) 41.0 μg/m3 (38) 11.1 μg/m3 (47) 50.0
 
Sept. 16, 2021, 4 p.m. 8.0 ppb (8) 0.0 ppb (0) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 49.0 ppb (46) 0.9 ppb (11) 40.0 μg/m3 (38) 12.8 μg/m3 (53) 53.0
 
Sept. 16, 2021, 3 p.m. 11.0 ppb (11) 2.0 ppb (2) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 36.0 ppb (34) 1.0 ppb (12) 48.0 μg/m3 (45) 13.5 μg/m3 (54) 54.0
 
Sept. 16, 2021, 2 p.m. 14.0 ppb (14) 3.0 ppb (3) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 21.0 ppb (20) 1.0 ppb (12) 51.0 μg/m3 (48) 15.9 μg/m3 (59) 59.0
 
Sept. 16, 2021, 1 p.m. 14.0 ppb (14) 4.0 ppb (4) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 12.0 ppb (12) 1.0 ppb (12) 32.0 μg/m3 (30) 13.7 μg/m3 (55) 55.0
 
Sept. 16, 2021, noon 10.0 ppb (10) 1.0 ppb (1) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 6.0 ppb (6) 0.9 ppb (11) 23.0 μg/m3 (22) 11.1 μg/m3 (47) 47.0
 
Sept. 16, 2021, 11 a.m. 8.0 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 8.0 ppb (8) 0.9 ppb (11) 23.0 μg/m3 (22) 10.7 μg/m3 (45) 45.0
 
Sept. 16, 2021, 10 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 12.0 ppb (12) 0.8 ppb (10) 25.0 μg/m3 (24) 10.7 μg/m3 (45) 45.0
 
Sept. 16, 2021, 9 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 16.0 ppb (15) 0.9 ppb (11) 23.0 μg/m3 (22) 10.8 μg/m3 (46) 46.0
 
Sept. 16, 2021, 8 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 19.0 ppb (18) 0.9 ppb (11) 32.0 μg/m3 (30) 15.9 μg/m3 (59) 59.0
 
Sept. 16, 2021, 7 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 22.0 ppb (21) 0.9 ppb (11) 33.0 μg/m3 (31) 15.1 μg/m3 (58) 58.0
 
Sept. 16, 2021, 6 a.m. 8.0 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 22.0 ppb (21) 0.8 ppb (10) 25.0 μg/m3 (24) 10.0 μg/m3 (42) 42.0
 
Sept. 16, 2021, 5 a.m. 10.0 ppb (10) 0.0 ppb (0) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 21.0 ppb (20) 0.9 ppb (11) 23.0 μg/m3 (22) 10.9 μg/m3 (46) 46.0
 
Sept. 16, 2021, 4 a.m. 15.0 ppb (15) 0.0 ppb (0) N/A 15.0 ppb (15) N/A 0.0 ppb (0) 18.0 ppb (17) 0.9 ppb (11) 23.0 μg/m3 (22) 10.6 μg/m3 (45) 45.0
 
Sept. 16, 2021, 3 a.m. 19.0 ppb (18) 0.0 ppb (0) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 14.0 ppb (13) 0.9 ppb (11) 21.0 μg/m3 (20) 9.6 μg/m3 (40) 40.0
 
Sept. 16, 2021, 2 a.m. 17.0 ppb (17) 0.0 ppb (0) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 16.0 ppb (15) 0.9 ppb (11) 22.0 μg/m3 (21) 9.6 μg/m3 (40) 40.0
 
Sept. 16, 2021, 1 a.m. 11.0 ppb (11) 0.0 ppb (0) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 27.0 ppb (25) 0.9 ppb (11) 23.0 μg/m3 (22) 10.0 μg/m3 (42) 42.0
 
Sept. 16, 2021, midnight 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 43.0 ppb (40) 0.8 ppb (10) 27.0 μg/m3 (25) 9.5 μg/m3 (40) 40.0
 
Sept. 15, 2021, 11 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 52.0 ppb (49) 0.8 ppb (10) 27.0 μg/m3 (25) 9.4 μg/m3 (40) 49.0
 
Sept. 15, 2021, 10 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 47.0 ppb (44) 0.8 ppb (10) 28.0 μg/m3 (26) 8.7 μg/m3 (37) 44.0
 
Sept. 15, 2021, 9 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 51.0 ppb (48) 0.8 ppb (10) 42.0 μg/m3 (39) 7.9 μg/m3 (33) 48.0
 
Sept. 15, 2021, 8 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 52.0 ppb (49) 0.8 ppb (10) 36.0 μg/m3 (34) 7.5 μg/m3 (32) 49.0
 
Sept. 15, 2021, 7 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 57.0 ppb (58) 0.8 ppb (10) 20.0 μg/m3 (19) 7.2 μg/m3 (31) 58.0
 
Sept. 15, 2021, 6 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 54.0 ppb (50) 0.8 ppb (10) 18.0 μg/m3 (17) 6.7 μg/m3 (28) 50.0
 
Sept. 15, 2021, 5 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 44.0 ppb (41) 0.8 ppb (10) 12.0 μg/m3 (12) 5.8 μg/m3 (25) 41.0
 
Sept. 15, 2021, 4 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 38.0 ppb (36) 0.8 ppb (10) 14.0 μg/m3 (13) 6.1 μg/m3 (26) 36.0
 
Sept. 15, 2021, 3 p.m. 6.0 ppb (6) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 30.0 ppb (28) 0.8 ppb (10) 22.0 μg/m3 (21) 7.1 μg/m3 (30) 30.0
 
Sept. 15, 2021, 2 p.m. 9.0 ppb (9) 0.0 ppb (0) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 22.0 ppb (21) 0.8 ppb (10) 23.0 μg/m3 (22) 6.9 μg/m3 (29) 29.0
 
Sept. 15, 2021, 1 p.m. 17.0 ppb (17) 3.0 ppb (3) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 13.0 ppb (13) 0.9 ppb (11) 30.0 μg/m3 (28) 9.1 μg/m3 (38) 38.0
 
Sept. 15, 2021, noon 11.0 ppb (11) 0.0 ppb (0) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 14.0 ppb (13) 0.8 ppb (10) 33.0 μg/m3 (31) 10.5 μg/m3 (44) 44.0
 
Sept. 15, 2021, 11 a.m. 7.0 ppb (7) 0.0 ppb (0) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 15.0 ppb (14) 0.8 ppb (10) 22.0 μg/m3 (21) 8.4 μg/m3 (36) 36.0
 
Sept. 15, 2021, 10 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 21.0 ppb (20) 0.8 ppb (10) 17.0 μg/m3 (16) 6.8 μg/m3 (29) 29.0
 
Sept. 15, 2021, 9 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 23.0 ppb (22) 0.8 ppb (10) 18.0 μg/m3 (17) 7.1 μg/m3 (30) 30.0
 
Sept. 15, 2021, 8 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (24) 0.8 ppb (10) 19.0 μg/m3 (18) 8.1 μg/m3 (34) 34.0
 
Sept. 15, 2021, 7 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 25.0 ppb (24) 0.8 ppb (10) 18.0 μg/m3 (17) 8.6 μg/m3 (36) 36.0
 
Sept. 15, 2021, 6 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 22.0 ppb (21) 0.8 ppb (10) 20.0 μg/m3 (19) 9.1 μg/m3 (38) 38.0
 
Sept. 15, 2021, 5 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 23.0 ppb (22) 0.8 ppb (10) 21.0 μg/m3 (20) 9.0 μg/m3 (38) 38.0
 
Sept. 15, 2021, 4 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 26.0 ppb (25) 0.8 ppb (10) 23.0 μg/m3 (22) 8.9 μg/m3 (38) 38.0
 
Sept. 15, 2021, 3 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (25) 0.8 ppb (10) 23.0 μg/m3 (22) 9.0 μg/m3 (38) 38.0
 
Sept. 15, 2021, 2 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 24.0 ppb (23) 0.8 ppb (10) 27.0 μg/m3 (25) 10.5 μg/m3 (44) 44.0
 
Sept. 15, 2021, 1 a.m. 8.0 ppb (8) 0.0 ppb (0) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 21.0 ppb (20) 0.8 ppb (10) 29.0 μg/m3 (27) 12.5 μg/m3 (52) 52.0
 
Sept. 15, 2021, midnight 5.0 ppb (5) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 26.0 ppb (25) 0.8 ppb (10) 23.0 μg/m3 (22) 9.8 μg/m3 (41) 41.0
 
Sept. 14, 2021, 11 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (34) 0.8 ppb (10) 23.0 μg/m3 (22) 8.9 μg/m3 (38) 38.0
 
Sept. 14, 2021, 10 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (36) 0.8 ppb (10) 26.0 μg/m3 (25) 8.2 μg/m3 (35) 36.0
 
Sept. 14, 2021, 9 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (36) 0.8 ppb (10) 31.0 μg/m3 (29) 8.7 μg/m3 (37) 37.0
 
Sept. 14, 2021, 8 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 40.0 ppb (38) 0.7 ppb (8) 30.0 μg/m3 (28) 9.3 μg/m3 (39) 39.0
 
Sept. 14, 2021, 7 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (37) 0.8 ppb (10) 31.0 μg/m3 (29) 10.1 μg/m3 (43) 43.0
 
Sept. 14, 2021, 6 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (33) 0.8 ppb (10) 41.0 μg/m3 (38) 11.9 μg/m3 (50) 50.0
 
Sept. 14, 2021, 5 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (32) 0.8 ppb (10) 46.0 μg/m3 (43) 13.0 μg/m3 (53) 53.0
 
Sept. 14, 2021, 4 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (28) 0.7 ppb (8) 50.0 μg/m3 (47) 15.5 μg/m3 (59) 59.0