ID: 86

AQSQID: 040131003

Site Name: Mesa - Brooks Reservoir

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

Updated: Oct. 17, 2021, 4:07 a.m.

Location: Mesa (Swest), AZ

Reporting: True, Located: True

Current AQI: 34.0

Mesa (Swest) AZ, US: 33.4105, -111.8651

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Oct. 17, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) 0.3 ppb (4) 27.0 μg/m3 (25) 8.1 μg/m3 (34) 34.0
 
Oct. 17, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) 0.2 ppb (3) 26.0 μg/m3 (25) 4.9 μg/m3 (21) 37.0
 
Oct. 17, 2021, midnight N/A N/A N/A N/A N/A N/A 48.0 ppb (45) 0.1 ppb (2) 30.0 μg/m3 (28) 4.2 μg/m3 (18) 45.0
 
Oct. 16, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) 0.1 ppb (2) 31.0 μg/m3 (29) 2.8 μg/m3 (12) 49.0
 
Oct. 16, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) 0.1 ppb (2) 23.0 μg/m3 (22) 2.5 μg/m3 (11) 49.0
 
Oct. 16, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) 0.1 ppb (2) 20.0 μg/m3 (19) 4.9 μg/m3 (21) 48.0
 
Oct. 16, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) 0.1 ppb (2) 15.0 μg/m3 (14) 3.7 μg/m3 (16) 47.0
 
Oct. 16, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) 0.1 ppb (2) 14.0 μg/m3 (13) 3.0 μg/m3 (13) 44.0
 
Oct. 16, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) 0.1 ppb (2) 15.0 μg/m3 (14) 2.7 μg/m3 (12) 42.0
 
Oct. 16, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) 0.1 ppb (2) 17.0 μg/m3 (16) 2.9 μg/m3 (13) 40.0
 
Oct. 16, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) 0.1 ppb (2) 21.0 μg/m3 (20) 2.5 μg/m3 (11) 38.0
 
Oct. 16, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) 0.1 ppb (2) 14.0 μg/m3 (13) 0.8 μg/m3 (4) 36.0
 
Oct. 16, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) 0.1 ppb (2) 10.0 μg/m3 (10) 1.7 μg/m3 (8) 33.0
 
Oct. 16, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) 0.1 ppb (2) 8.0 μg/m3 (8) 1.8 μg/m3 (8) 34.0
 
Oct. 16, 2021, noon N/A N/A N/A N/A N/A N/A 37.0 ppb (35) 0.1 ppb (2) 5.0 μg/m3 (5) 0.5 μg/m3 (3) 35.0
 
Oct. 16, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) 0.1 ppb (2) 6.0 μg/m3 (6) 1.2 μg/m3 (5) 37.0
 
Oct. 16, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) 0.1 ppb (2) 7.0 μg/m3 (7) 1.8 μg/m3 (8) 38.0
 
Oct. 16, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) 0.1 ppb (2) 8.0 μg/m3 (8) 1.1 μg/m3 (5) 38.0
 
Oct. 16, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) 0.1 ppb (2) 7.0 μg/m3 (7) 1.9 μg/m3 (8) 38.0
 
Oct. 16, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) 0.1 ppb (2) 8.0 μg/m3 (8) 2.0 μg/m3 (9) 38.0
 
Oct. 16, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) 0.1 ppb (2) 10.0 μg/m3 (10) 1.7 μg/m3 (8) 38.0
 
Oct. 16, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) 0.1 ppb (2) 9.0 μg/m3 (9) 1.0 μg/m3 (5) 38.0
 
Oct. 16, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) 0.1 ppb (2) 9.0 μg/m3 (9) 1.7 μg/m3 (8) 38.0
 
Oct. 16, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) 0.2 ppb (3) 10.0 μg/m3 (10) 2.2 μg/m3 (10) 37.0
 
Oct. 16, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) 0.2 ppb (3) 14.0 μg/m3 (13) 3.2 μg/m3 (14) 33.0
 
Oct. 16, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) 0.2 ppb (3) 12.0 μg/m3 (12) 3.7 μg/m3 (16) 33.0
 
Oct. 16, 2021, midnight N/A N/A N/A N/A N/A N/A 45.0 ppb (42) 0.1 ppb (2) 6.0 μg/m3 (6) 0.9 μg/m3 (4) 42.0
 
Oct. 15, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) 0.1 ppb (2) 6.0 μg/m3 (6) 2.1 μg/m3 (9) 44.0
 
Oct. 15, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) 0.1 ppb (2) 6.0 μg/m3 (6) 1.2 μg/m3 (5) 42.0
 
Oct. 15, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) 0.1 ppb (2) 9.0 μg/m3 (9) 3.4 μg/m3 (15) 42.0
 
Oct. 15, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) 0.1 ppb (2) 7.0 μg/m3 (7) 0.8 μg/m3 (4) 42.0
 
Oct. 15, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) 0.1 ppb (2) 7.0 μg/m3 (7) 0.4 μg/m3 (2) 41.0
 
Oct. 15, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) 0.1 ppb (2) 11.0 μg/m3 (11) 2.2 μg/m3 (10) 39.0
 
Oct. 15, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) 0.1 ppb (2) 15.0 μg/m3 (14) 0.4 μg/m3 (2) 38.0
 
Oct. 15, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) 0.1 ppb (2) N/A N/A 36.0
 
Oct. 15, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
Oct. 15, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (3) 9.0 μg/m3 (9) 1.0 μg/m3 (5) 9.0
 
Oct. 15, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) 0.2 ppb (3) 11.0 μg/m3 (11) 2.2 μg/m3 (10) 29.0
 
Oct. 15, 2021, noon N/A N/A N/A N/A N/A N/A 33.0 ppb (31) 0.1 ppb (2) 8.0 μg/m3 (8) 2.7 μg/m3 (12) 31.0
 
Oct. 15, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) 0.2 ppb (3) 8.0 μg/m3 (8) 2.4 μg/m3 (10) 32.0
 
Oct. 15, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) 0.2 ppb (3) 12.0 μg/m3 (12) 2.5 μg/m3 (11) 34.0
 
Oct. 15, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) 0.2 ppb (3) 17.0 μg/m3 (16) 2.8 μg/m3 (12) 37.0
 
Oct. 15, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) 0.2 ppb (3) 14.0 μg/m3 (13) 2.4 μg/m3 (10) 36.0
 
Oct. 15, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) 0.2 ppb (3) 14.0 μg/m3 (13) 2.6 μg/m3 (11) 33.0
 
Oct. 15, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) 0.3 ppb (4) 18.0 μg/m3 (17) 5.2 μg/m3 (22) 31.0
 
Oct. 15, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) 0.4 ppb (5) 34.0 μg/m3 (32) 11.5 μg/m3 (48) 48.0
 
Oct. 15, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) 0.7 ppb (8) 38.0 μg/m3 (36) 13.0 μg/m3 (53) 53.0
 
Oct. 15, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) 0.5 ppb (6) 24.0 μg/m3 (23) 5.8 μg/m3 (25) 25.0
 
Oct. 15, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) 0.3 ppb (4) 22.0 μg/m3 (21) 4.9 μg/m3 (21) 30.0
 
Oct. 15, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) 0.3 ppb (4) 18.0 μg/m3 (17) 5.6 μg/m3 (24) 37.0
 
Oct. 15, 2021, midnight N/A N/A N/A N/A N/A N/A 52.0 ppb (49) 0.2 ppb (3) 20.0 μg/m3 (19) 9.7 μg/m3 (41) 49.0
 
Oct. 14, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) 0.2 ppb (3) 21.0 μg/m3 (20) 11.1 μg/m3 (47) 61.0
 
Oct. 14, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) 0.2 ppb (3) 16.0 μg/m3 (15) 5.1 μg/m3 (22) 55.0
 
Oct. 14, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) 0.1 ppb (2) 14.0 μg/m3 (13) 3.3 μg/m3 (14) 48.0
 
Oct. 14, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) 0.1 ppb (2) 14.0 μg/m3 (13) 2.8 μg/m3 (12) 45.0
 
Oct. 14, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) 0.2 ppb (3) 19.0 μg/m3 (18) 4.2 μg/m3 (18) 42.0
 
Oct. 14, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) 0.2 ppb (3) 28.0 μg/m3 (26) 7.2 μg/m3 (31) 38.0
 
Oct. 14, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) 0.2 ppb (3) 29.0 μg/m3 (27) 4.3 μg/m3 (18) 34.0
 
Oct. 14, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) 0.3 ppb (4) 35.0 μg/m3 (33) 5.5 μg/m3 (23) 33.0
 
Oct. 14, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) 0.4 ppb (5) 47.0 μg/m3 (44) 9.7 μg/m3 (41) 44.0
 
Oct. 14, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) 0.4 ppb (5) 57.0 μg/m3 (52) 10.2 μg/m3 (43) 52.0
 
Oct. 14, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) 0.4 ppb (5) 36.0 μg/m3 (34) 6.8 μg/m3 (29) 34.0
 
Oct. 14, 2021, noon N/A N/A N/A N/A N/A N/A 13.0 ppb (13) 0.3 ppb (4) 25.0 μg/m3 (24) 5.4 μg/m3 (23) 24.0
 
Oct. 14, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) 0.3 ppb (4) 25.0 μg/m3 (24) 5.3 μg/m3 (23) 24.0
 
Oct. 14, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) 0.3 ppb (4) 33.0 μg/m3 (31) 8.0 μg/m3 (34) 34.0
 
Oct. 14, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) 0.4 ppb (5) 37.0 μg/m3 (35) 11.2 μg/m3 (47) 47.0
 
Oct. 14, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) 0.5 ppb (6) 42.0 μg/m3 (39) 14.9 μg/m3 (57) 57.0
 
Oct. 14, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.7 ppb (8) 46.0 μg/m3 (43) 16.3 μg/m3 (60) 60.0
 
Oct. 14, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 0.7 ppb (8) 38.0 μg/m3 (36) 15.8 μg/m3 (59) 59.0
 
Oct. 14, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) 0.7 ppb (8) 33.0 μg/m3 (31) 14.1 μg/m3 (56) 56.0
 
Oct. 14, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) 0.6 ppb (7) 32.0 μg/m3 (30) 13.1 μg/m3 (54) 54.0
 
Oct. 14, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) 0.5 ppb (6) 26.0 μg/m3 (25) 7.4 μg/m3 (31) 31.0
 
Oct. 14, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) 0.4 ppb (5) 21.0 μg/m3 (20) 4.2 μg/m3 (18) 24.0
 
Oct. 14, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) 0.3 ppb (4) 23.0 μg/m3 (22) 5.9 μg/m3 (25) 33.0
 
Oct. 14, 2021, midnight N/A N/A N/A N/A N/A N/A 43.0 ppb (40) 0.2 ppb (3) 19.0 μg/m3 (18) 5.3 μg/m3 (23) 40.0
 
Oct. 13, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) 0.2 ppb (3) 16.0 μg/m3 (15) 4.7 μg/m3 (20) 46.0
 
Oct. 13, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) 0.2 ppb (3) 14.0 μg/m3 (13) 3.1 μg/m3 (13) 46.0
 
Oct. 13, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) 0.1 ppb (2) 14.0 μg/m3 (13) 4.5 μg/m3 (19) 44.0
 
Oct. 13, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) 0.1 ppb (2) 19.0 μg/m3 (18) 2.7 μg/m3 (12) 41.0
 
Oct. 13, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) 0.1 ppb (2) 26.0 μg/m3 (25) 3.1 μg/m3 (13) 40.0
 
Oct. 13, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) 0.1 ppb (2) 40.0 μg/m3 (38) 7.0 μg/m3 (30) 39.0
 
Oct. 13, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) 0.1 ppb (2) 42.0 μg/m3 (39) 11.0 μg/m3 (46) 46.0
 
Oct. 13, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) 0.2 ppb (3) 38.0 μg/m3 (36) 8.8 μg/m3 (37) 37.0
 
Oct. 13, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) 0.2 ppb (3) 30.0 μg/m3 (28) 5.1 μg/m3 (22) 28.0
 
Oct. 13, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) 0.2 ppb (3) 38.0 μg/m3 (36) 5.7 μg/m3 (24) 36.0
 
Oct. 13, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) 0.2 ppb (3) 33.0 μg/m3 (31) 5.4 μg/m3 (23) 31.0
 
Oct. 13, 2021, noon N/A N/A N/A N/A N/A N/A 19.0 ppb (18) 0.2 ppb (3) 29.0 μg/m3 (27) 5.6 μg/m3 (24) 27.0
 
Oct. 13, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) 0.1 ppb (2) 27.0 μg/m3 (25) 3.4 μg/m3 (15) 26.0
 
Oct. 13, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) 0.1 ppb (2) 28.0 μg/m3 (26) 3.6 μg/m3 (16) 30.0
 
Oct. 13, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) 0.1 ppb (2) 27.0 μg/m3 (25) 3.9 μg/m3 (17) 29.0
 
Oct. 13, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) 0.1 ppb (2) 27.0 μg/m3 (25) 2.9 μg/m3 (13) 28.0
 
Oct. 13, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) 0.1 ppb (2) 32.0 μg/m3 (30) 3.6 μg/m3 (16) 30.0
 
Oct. 13, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) 0.3 ppb (4) 40.0 μg/m3 (38) 8.6 μg/m3 (36) 38.0
 
Oct. 13, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) 0.5 ppb (6) 31.0 μg/m3 (29) 6.7 μg/m3 (28) 29.0
 
Oct. 13, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) 0.3 ppb (4) 27.0 μg/m3 (25) 4.3 μg/m3 (18) 25.0
 
Oct. 13, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) 0.3 ppb (4) 29.0 μg/m3 (27) 5.4 μg/m3 (23) 27.0
 
Oct. 13, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) 0.3 ppb (4) 31.0 μg/m3 (29) 4.2 μg/m3 (18) 29.0
 
Oct. 13, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) 0.2 ppb (3) 35.0 μg/m3 (33) 4.2 μg/m3 (18) 35.0
 
Oct. 13, 2021, midnight N/A N/A N/A N/A N/A N/A 40.0 ppb (38) 0.1 ppb (2) 37.0 μg/m3 (35) 5.7 μg/m3 (24) 38.0
 
Oct. 12, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) 0.1 ppb (2) 40.0 μg/m3 (38) 5.1 μg/m3 (22) 39.0
 
Oct. 12, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) 0.1 ppb (2) 62.0 μg/m3 (55) 8.7 μg/m3 (37) 55.0
 
Oct. 12, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) 0.1 ppb (2) 67.0 μg/m3 (57) 5.9 μg/m3 (25) 57.0
 
Oct. 12, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) 0.1 ppb (2) 97.0 μg/m3 (72) 7.8 μg/m3 (33) 72.0
 
Oct. 12, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) 0.1 ppb (2) 131.0 μg/m3 (89) 11.8 μg/m3 (50) 89.0
 
Oct. 12, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) 0.1 ppb (2) 162.0 μg/m3 (105) 15.1 μg/m3 (58) 105.0
 
Oct. 12, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) 0.1 ppb (2) 179.0 μg/m3 (113) 15.6 μg/m3 (59) 113.0
 
Oct. 12, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) 0.2 ppb (3) 205.0 μg/m3 (126) 21.9 μg/m3 (72) 126.0
 
Oct. 12, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) 0.2 ppb (3) 209.0 μg/m3 (128) 25.7 μg/m3 (80) 128.0
 
Oct. 12, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) 0.3 ppb (4) 125.0 μg/m3 (86) 14.6 μg/m3 (57) 86.0
 
Oct. 12, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) 0.3 ppb (4) 87.0 μg/m3 (67) 12.5 μg/m3 (52) 67.0
 
Oct. 12, 2021, noon N/A N/A N/A N/A N/A N/A 23.0 ppb (22) 0.2 ppb (3) 106.0 μg/m3 (77) 15.8 μg/m3 (59) 77.0
 
Oct. 12, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) 0.1 ppb (2) 149.0 μg/m3 (98) 18.2 μg/m3 (64) 98.0
 
Oct. 12, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) 0.1 ppb (2) 297.0 μg/m3 (172) 32.4 μg/m3 (94) 172.0
 
Oct. 12, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) 0.1 ppb (2) 395.0 μg/m3 (259) 50.1 μg/m3 (137) 259.0
 
Oct. 12, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) 0.1 ppb (2) 525.0 μg/m3 (421) 67.4 μg/m3 (158) 421.0
 
Oct. 12, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) 0.1 ppb (2) 1018.0 μg/m3 (914) 144.4 μg/m3 (197) 914.0
 
Oct. 12, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) 0.1 ppb (2) 657.0 μg/m3 (553) 85.5 μg/m3 (167) 553.0
 
Oct. 12, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) 0.1 ppb (2) 269.0 μg/m3 (158) 19.9 μg/m3 (68) 158.0
 
Oct. 12, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) 0.1 ppb (2) 182.0 μg/m3 (115) 13.6 μg/m3 (55) 115.0
 
Oct. 12, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) 0.1 ppb (2) 140.0 μg/m3 (94) 9.0 μg/m3 (38) 94.0
 
Oct. 12, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) 0.1 ppb (2) 87.0 μg/m3 (67) 6.7 μg/m3 (28) 67.0
 
Oct. 12, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) 0.1 ppb (2) 64.0 μg/m3 (56) 3.7 μg/m3 (16) 56.0
 
Oct. 12, 2021, midnight N/A N/A N/A N/A N/A N/A 52.0 ppb (49) 0.1 ppb (2) 37.0 μg/m3 (35) 2.0 μg/m3 (9) 49.0
 
Oct. 11, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) 0.1 ppb (2) 31.0 μg/m3 (29) 4.2 μg/m3 (18) 47.0
 
Oct. 11, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) 0.1 ppb (2) 17.0 μg/m3 (16) 2.5 μg/m3 (11) 45.0
 
Oct. 11, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) 0.1 ppb (2) 20.0 μg/m3 (19) 4.0 μg/m3 (17) 47.0
 
Oct. 11, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) 0.1 ppb (2) 12.0 μg/m3 (12) 1.6 μg/m3 (7) 49.0
 
Oct. 11, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) 0.1 ppb (2) 14.0 μg/m3 (13) 4.2 μg/m3 (18) 50.0
 
Oct. 11, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) 0.1 ppb (2) 20.0 μg/m3 (19) 4.8 μg/m3 (20) 48.0
 
Oct. 11, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) 0.1 ppb (2) 21.0 μg/m3 (20) 3.5 μg/m3 (15) 40.0
 
Oct. 11, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) 0.2 ppb (3) 28.0 μg/m3 (26) 3.6 μg/m3 (16) 30.0
 
Oct. 11, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) 0.3 ppb (4) 31.0 μg/m3 (29) 5.6 μg/m3 (24) 29.0
 
Oct. 11, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) 0.3 ppb (4) 36.0 μg/m3 (34) 7.6 μg/m3 (32) 34.0
 
Oct. 11, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) 0.3 ppb (4) 21.0 μg/m3 (20) 4.9 μg/m3 (21) 21.0
 
Oct. 11, 2021, noon N/A N/A N/A N/A N/A N/A 17.0 ppb (16) 0.3 ppb (4) 13.0 μg/m3 (13) 3.3 μg/m3 (14) 16.0
 
Oct. 11, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) 0.3 ppb (4) 13.0 μg/m3 (13) 3.0 μg/m3 (13) 17.0
 
Oct. 11, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) 0.2 ppb (3) 14.0 μg/m3 (13) 4.6 μg/m3 (20) 20.0
 
Oct. 11, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) 0.2 ppb (3) 17.0 μg/m3 (16) 5.8 μg/m3 (25) 25.0
 
Oct. 11, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) 0.3 ppb (4) 13.0 μg/m3 (13) 4.3 μg/m3 (18) 19.0
 
Oct. 11, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) 0.3 ppb (4) 12.0 μg/m3 (12) 4.5 μg/m3 (19) 25.0
 
Oct. 11, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) 0.2 ppb (3) 11.0 μg/m3 (11) 4.3 μg/m3 (18) 29.0
 
Oct. 11, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) 0.3 ppb (4) 15.0 μg/m3 (14) 7.4 μg/m3 (31) 31.0
 
Oct. 11, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) 0.4 ppb (5) 14.0 μg/m3 (13) 7.3 μg/m3 (31) 31.0
 
Oct. 11, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) 0.4 ppb (5) 19.0 μg/m3 (18) 9.5 μg/m3 (40) 40.0
 
Oct. 11, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) 0.3 ppb (4) 9.0 μg/m3 (9) 3.2 μg/m3 (14) 29.0
 
Oct. 11, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) 0.2 ppb (3) 5.0 μg/m3 (5) 2.0 μg/m3 (9) 50.0
 
Oct. 11, 2021, midnight N/A N/A N/A N/A N/A N/A 62.0 ppb (74) 0.1 ppb (2) 5.0 μg/m3 (5) 3.3 μg/m3 (14) 74.0
 
Oct. 10, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) 0.1 ppb (2) 5.0 μg/m3 (5) 2.5 μg/m3 (11) 71.0
 
Oct. 10, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) 0.1 ppb (2) 6.0 μg/m3 (6) 2.8 μg/m3 (12) 71.0
 
Oct. 10, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) 0.1 ppb (2) 6.0 μg/m3 (6) 1.6 μg/m3 (7) 65.0
 
Oct. 10, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) 0.1 ppb (2) 7.0 μg/m3 (7) 3.2 μg/m3 (14) 55.0
 
Oct. 10, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) 0.1 ppb (2) 7.0 μg/m3 (7) 2.4 μg/m3 (10) 50.0
 
Oct. 10, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) 0.1 ppb (2) 10.0 μg/m3 (10) 4.2 μg/m3 (18) 45.0
 
Oct. 10, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) 0.1 ppb (2) 14.0 μg/m3 (13) 4.2 μg/m3 (18) 40.0
 
Oct. 10, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) 0.1 ppb (2) 15.0 μg/m3 (14) 3.9 μg/m3 (17) 35.0
 
Oct. 10, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) 0.2 ppb (3) 15.0 μg/m3 (14) 3.2 μg/m3 (14) 26.0
 
Oct. 10, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) 0.2 ppb (3) 14.0 μg/m3 (13) 3.6 μg/m3 (16) 21.0
 
Oct. 10, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) 0.2 ppb (3) 14.0 μg/m3 (13) 4.1 μg/m3 (18) 18.0
 
Oct. 10, 2021, noon N/A N/A N/A N/A N/A N/A 19.0 ppb (18) 0.2 ppb (3) 14.0 μg/m3 (13) 5.2 μg/m3 (22) 22.0
 
Oct. 10, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) 0.3 ppb (4) 13.0 μg/m3 (13) 4.7 μg/m3 (20) 20.0
 
Oct. 10, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) 0.2 ppb (3) 13.0 μg/m3 (13) 4.3 μg/m3 (18) 24.0
 
Oct. 10, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) 0.2 ppb (3) 14.0 μg/m3 (13) 3.7 μg/m3 (16) 28.0
 
Oct. 10, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) 0.2 ppb (3) 15.0 μg/m3 (14) 5.2 μg/m3 (22) 33.0
 
Oct. 10, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) 0.2 ppb (3) 13.0 μg/m3 (13) 4.0 μg/m3 (17) 38.0
 
Oct. 10, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) 0.2 ppb (3) 15.0 μg/m3 (14) 5.9 μg/m3 (25) 39.0
 
Oct. 10, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) 0.2 ppb (3) 14.0 μg/m3 (13) 5.1 μg/m3 (22) 38.0
 
Oct. 10, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) 0.1 ppb (2) 11.0 μg/m3 (11) 1.3 μg/m3 (6) 39.0
 
Oct. 10, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) 0.2 ppb (3) 11.0 μg/m3 (11) 2.0 μg/m3 (9) 38.0