ID: 1246

AQSQID: 391650007

Site Name: Lebanon

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

Updated: July 25, 2021, 7:52 a.m.

Location: Lebanon (Co Hwy 272), OH

Reporting: True, Located: True

Current AQI: 79.0

Lebanon (Co Hwy 272) OH, US: 39.42689, -84.20077

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 25, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 25.0 μg/m3 (79) 79.0
 
July 25, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 20.4 μg/m3 (69) 69.0
 
July 25, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 20.4 μg/m3 (69) 69.0
 
July 25, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A N/A 18.3 μg/m3 (65) 65.0
 
July 25, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A 27.7 μg/m3 (84) 84.0
 
July 25, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A N/A 27.7 μg/m3 (84) 84.0
 
July 25, 2021, midnight N/A N/A N/A N/A N/A N/A 71.0 ppb (101) N/A N/A 21.9 μg/m3 (72) 101.0
 
July 24, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 70.0 ppb (100) N/A N/A 23.8 μg/m3 (76) 100.0
 
July 24, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 76.0 ppb (104) N/A N/A 23.6 μg/m3 (76) 104.0
 
July 24, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 71.0 ppb (101) N/A N/A 24.1 μg/m3 (77) 101.0
 
July 24, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 69.0 ppb (97) N/A N/A 26.8 μg/m3 (82) 97.0
 
July 24, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 70.0 ppb (100) N/A N/A 28.0 μg/m3 (85) 100.0
 
July 24, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 72.0 ppb (102) N/A N/A 23.8 μg/m3 (76) 102.0
 
July 24, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 66.0 ppb (87) N/A N/A 17.3 μg/m3 (62) 87.0
 
July 24, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (91) N/A N/A 23.8 μg/m3 (76) 91.0
 
July 24, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A N/A 15.0 μg/m3 (58) 58.0
 
July 24, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A N/A 16.5 μg/m3 (61) 61.0
 
July 24, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 17.0 μg/m3 (62) 62.0
 
July 24, 2021, noon N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 13.5 μg/m3 (54) 54.0
 
July 24, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) N/A N/A 11.3 μg/m3 (48) 48.0
 
July 24, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) N/A N/A 10.8 μg/m3 (46) 46.0
 
July 24, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) N/A N/A 11.1 μg/m3 (47) 47.0
 
July 24, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A N/A 7.8 μg/m3 (33) 33.0
 
July 24, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A N/A 4.8 μg/m3 (20) 20.0
 
July 24, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) N/A N/A 15.5 μg/m3 (59) 59.0
 
July 24, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A N/A 13.5 μg/m3 (54) 54.0
 
July 24, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A N/A 14.3 μg/m3 (56) 56.0
 
July 24, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 12.1 μg/m3 (51) 51.0
 
July 24, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 11.6 μg/m3 (49) 49.0
 
July 24, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 10.1 μg/m3 (43) 43.0
 
July 24, 2021, midnight N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 7.8 μg/m3 (33) 44.0
 
July 23, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A 9.9 μg/m3 (42) 50.0
 
July 23, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A N/A 13.6 μg/m3 (55) 58.0
 
July 23, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A N/A 14.3 μg/m3 (56) 58.0
 
July 23, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A N/A 10.6 μg/m3 (45) 61.0
 
July 23, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A N/A 7.6 μg/m3 (32) 58.0
 
July 23, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A 10.6 μg/m3 (45) 55.0
 
July 23, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A N/A 12.8 μg/m3 (53) 53.0
 
July 23, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A N/A 11.8 μg/m3 (50) 50.0
 
July 23, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A N/A 8.0 μg/m3 (34) 47.0
 
July 23, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 4.1 μg/m3 (18) 44.0
 
July 23, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 9.0 μg/m3 (38) 38.0
 
July 23, 2021, noon N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A N/A 9.4 μg/m3 (40) 40.0
 
July 23, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A N/A 2.8 μg/m3 (12) 12.0
 
July 23, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A N/A 2.9 μg/m3 (13) 13.0
 
July 23, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) N/A N/A 3.3 μg/m3 (14) 14.0
 
July 23, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) N/A N/A 6.3 μg/m3 (27) 27.0
 
July 23, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A N/A 9.7 μg/m3 (41) 41.0
 
July 23, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A N/A 5.3 μg/m3 (23) 23.0
 
July 23, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A N/A 2.9 μg/m3 (13) 13.0
 
July 23, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) N/A N/A 3.8 μg/m3 (16) 16.0
 
July 23, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A N/A 6.1 μg/m3 (26) 26.0
 
July 23, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A N/A 8.5 μg/m3 (36) 36.0
 
July 23, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A 7.1 μg/m3 (30) 30.0
 
July 23, 2021, midnight N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 6.1 μg/m3 (26) 38.0
 
July 22, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 8.8 μg/m3 (37) 44.0
 
July 22, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A 8.8 μg/m3 (37) 45.0
 
July 22, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A 8.0 μg/m3 (34) 46.0
 
July 22, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A N/A 9.2 μg/m3 (39) 47.0
 
July 22, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 9.4 μg/m3 (40) 43.0
 
July 22, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 9.2 μg/m3 (39) 41.0
 
July 22, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 10.1 μg/m3 (43) 43.0
 
July 22, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 11.4 μg/m3 (48) 48.0
 
July 22, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 9.0 μg/m3 (38) 38.0
 
July 22, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 8.8 μg/m3 (37) 37.0
 
July 22, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 13.3 μg/m3 (54) 54.0
 
July 22, 2021, noon N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A N/A 12.8 μg/m3 (53) 53.0
 
July 22, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
July 22, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A N/A 12.7 μg/m3 (53) 53.0
 
July 22, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A N/A 14.0 μg/m3 (55) 55.0
 
July 22, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A 12.8 μg/m3 (53) 53.0
 
July 22, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 13.3 μg/m3 (54) 54.0
 
July 22, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 14.5 μg/m3 (57) 57.0
 
July 22, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 18.3 μg/m3 (65) 65.0
 
July 22, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 17.5 μg/m3 (63) 63.0
 
July 22, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 14.5 μg/m3 (57) 57.0
 
July 22, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 17.3 μg/m3 (62) 62.0
 
July 22, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 16.0 μg/m3 (60) 60.0
 
July 22, 2021, midnight N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 17.1 μg/m3 (62) 62.0
 
July 21, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A N/A 20.2 μg/m3 (69) 69.0
 
July 21, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A N/A 20.0 μg/m3 (68) 68.0
 
July 21, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A N/A 19.0 μg/m3 (66) 66.0
 
July 21, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A N/A 26.5 μg/m3 (82) 82.0
 
July 21, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A 21.4 μg/m3 (71) 71.0
 
July 21, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A N/A 24.8 μg/m3 (78) 78.0
 
July 21, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A N/A 23.1 μg/m3 (75) 75.0
 
July 21, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 22.6 μg/m3 (74) 74.0
 
July 21, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 22.6 μg/m3 (74) 74.0
 
July 21, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 25.0 μg/m3 (79) 79.0
 
July 21, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 31.6 μg/m3 (93) 93.0
 
July 21, 2021, noon N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 28.4 μg/m3 (86) 86.0
 
July 21, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A N/A 17.8 μg/m3 (63) 63.0
 
July 21, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 17.5 μg/m3 (63) 63.0
 
July 21, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 16.0 μg/m3 (60) 60.0
 
July 21, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A N/A 23.5 μg/m3 (75) 75.0
 
July 21, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A N/A 16.8 μg/m3 (61) 61.0
 
July 21, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A N/A 18.3 μg/m3 (65) 65.0
 
July 21, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) N/A N/A 29.4 μg/m3 (88) 88.0
 
July 21, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A 24.3 μg/m3 (77) 77.0
 
July 21, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 26.7 μg/m3 (82) 82.0
 
July 21, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 22.4 μg/m3 (73) 73.0
 
July 21, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 23.6 μg/m3 (76) 76.0
 
July 21, 2021, midnight N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 24.6 μg/m3 (78) 78.0
 
July 20, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A N/A 32.8 μg/m3 (95) 95.0
 
July 20, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A 40.9 μg/m3 (115) 115.0
 
July 20, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (91) N/A N/A 41.7 μg/m3 (117) 117.0
 
July 20, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 72.0 ppb (102) N/A N/A 34.7 μg/m3 (99) 102.0
 
July 20, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 71.0 ppb (101) N/A N/A 40.7 μg/m3 (114) 114.0
 
July 20, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (94) N/A N/A 34.5 μg/m3 (99) 99.0
 
July 20, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 33.0 μg/m3 (95) 95.0
 
July 20, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 29.4 μg/m3 (88) 88.0
 
July 20, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 31.8 μg/m3 (93) 93.0
 
July 20, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 20.0 μg/m3 (68) 68.0
 
July 20, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A N/A 18.0 μg/m3 (64) 64.0
 
July 20, 2021, noon N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A N/A 28.4 μg/m3 (86) 86.0
 
July 20, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 18.2 μg/m3 (64) 64.0
 
July 20, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 17.3 μg/m3 (62) 62.0
 
July 20, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 11.6 μg/m3 (49) 49.0
 
July 20, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A N/A 13.5 μg/m3 (54) 54.0
 
July 20, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) N/A N/A 15.0 μg/m3 (58) 58.0
 
July 20, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) N/A N/A 19.3 μg/m3 (67) 67.0
 
July 20, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A N/A 18.0 μg/m3 (64) 64.0
 
July 20, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A N/A 18.8 μg/m3 (66) 66.0
 
July 20, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A N/A 21.9 μg/m3 (72) 72.0
 
July 20, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 29.7 μg/m3 (89) 89.0
 
July 20, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 18.0 μg/m3 (64) 64.0
 
July 20, 2021, midnight N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 15.3 μg/m3 (58) 58.0
 
July 19, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 19.0 μg/m3 (66) 66.0
 
July 19, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 19.0 μg/m3 (66) 66.0
 
July 19, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 16.0 μg/m3 (60) 60.0
 
July 19, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A 17.8 μg/m3 (63) 63.0
 
July 19, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 18.5 μg/m3 (65) 65.0
 
July 19, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 17.3 μg/m3 (62) 62.0
 
July 19, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 13.3 μg/m3 (54) 54.0
 
July 19, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 17.8 μg/m3 (63) 63.0
 
July 19, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 13.1 μg/m3 (54) 54.0
 
July 19, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 10.9 μg/m3 (46) 46.0
 
July 19, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 9.2 μg/m3 (39) 39.0
 
July 19, 2021, noon N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A N/A N/A 12.0
 
July 19, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 4.0
 
July 19, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) N/A N/A N/A 7.0
 
July 19, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A N/A N/A 10.0
 
July 19, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A N/A N/A 11.0
 
July 19, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A N/A N/A 12.0
 
July 19, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A N/A N/A 13.0
 
July 19, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 5.0
 
July 19, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 5.0
 
July 19, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) N/A N/A N/A 7.0
 
July 19, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A N/A N/A 13.0
 
July 19, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A N/A 22.0
 
July 19, 2021, midnight N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A N/A 35.0
 
July 18, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A N/A 38.0
 
July 18, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A N/A 36.0
 
July 18, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 34.0
 
July 18, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A N/A 31.0
 
July 18, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A N/A 32.0
 
July 18, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 34.0
 
July 18, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A N/A 36.0
 
July 18, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 9.2 μg/m3 (39) 39.0
 
July 18, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 6.3 μg/m3 (27) 36.0
 
July 18, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 5.6 μg/m3 (24) 36.0
 
July 18, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 7.0 μg/m3 (30) 36.0
 
July 18, 2021, noon N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 7.5 μg/m3 (32) 32.0
 
July 18, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 6.5 μg/m3 (28) 28.0
 
July 18, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A N/A 4.9 μg/m3 (21) 21.0
 
July 18, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A 3.9 μg/m3 (17) 17.0
 
July 18, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A N/A 2.9 μg/m3 (13) 14.0
 
July 18, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A N/A 1.6 μg/m3 (7) 14.0