AQSQID: 040131003

Site Name: Mesa - Brooks Reservoir

Location: Mesa, AZ

Reporting: True, Located: True

Current AQI: 26.0

Mesa AZ, US: 33.4105, -111.8651

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 20, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) 0.2 ppb (2) 16.0 μg/m3 (15) 6.3 μg/m3 (26) 26.0
 
July 20, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) 0.2 ppb (2) 14.0 μg/m3 (13) 5.0 μg/m3 (21) 21.0
 
July 20, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) 0.3 ppb (3) 11.0 μg/m3 (10) 4.1 μg/m3 (17) 18.0
 
July 20, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) 0.2 ppb (2) 8.0 μg/m3 (7) 2.0 μg/m3 (8) 26.0
 
July 20, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) 0.1 ppb (1) 10.0 μg/m3 (9) 3.2 μg/m3 (13) 30.0
 
July 20, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) 0.1 ppb (1) 11.0 μg/m3 (10) 2.1 μg/m3 (9) 32.0
 
July 20, 2019, midnight N/A N/A N/A N/A N/A N/A 45.0 ppb (35) 0.1 ppb (1) 13.0 μg/m3 (12) 3.2 μg/m3 (13) 35.0
 
July 19, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) 0.1 ppb (1) 15.0 μg/m3 (14) 3.0 μg/m3 (12) 35.0
 
July 19, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) 0.1 ppb (1) 14.0 μg/m3 (13) 1.2 μg/m3 (5) 38.0
 
July 19, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) 0.1 ppb (1) 18.0 μg/m3 (16) 5.5 μg/m3 (23) 41.0
 
July 19, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) 0.1 ppb (1) 23.0 μg/m3 (21) 7.3 μg/m3 (30) 45.0
 
July 19, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (52) 0.1 ppb (1) 21.0 μg/m3 (19) 8.2 μg/m3 (34) 52.0
 
July 19, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) 0.1 ppb (1) 14.0 μg/m3 (13) 1.8 μg/m3 (8) 43.0
 
July 19, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) 0.1 ppb (1) 21.0 μg/m3 (19) 6.8 μg/m3 (28) 35.0
 
July 19, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) 0.2 ppb (2) 22.0 μg/m3 (20) 4.0 μg/m3 (17) 33.0
 
July 19, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) 0.2 ppb (2) 24.0 μg/m3 (22) 4.1 μg/m3 (17) 24.0
 
July 19, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) 0.2 ppb (2) 36.0 μg/m3 (33) 6.0 μg/m3 (25) 33.0
 
July 19, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) 0.3 ppb (3) 35.0 μg/m3 (32) 7.6 μg/m3 (32) 32.0
 
July 19, 2019, noon N/A N/A N/A N/A N/A N/A 8.0 ppb (6) 0.2 ppb (2) 25.0 μg/m3 (23) 4.9 μg/m3 (20) 23.0
 
July 19, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) 0.2 ppb (2) 22.0 μg/m3 (20) 6.2 μg/m3 (26) 26.0
 
July 19, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) 0.3 ppb (3) 19.0 μg/m3 (17) 5.0 μg/m3 (21) 21.0
 
July 19, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) 0.2 ppb (2) 15.0 μg/m3 (14) 4.0 μg/m3 (17) 17.0
 
July 19, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) 0.2 ppb (2) 16.0 μg/m3 (15) 5.0 μg/m3 (21) 21.0
 
July 19, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) 0.2 ppb (2) 12.0 μg/m3 (11) 4.8 μg/m3 (20) 20.0
 
July 19, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) 0.2 ppb (2) 10.0 μg/m3 (9) 3.2 μg/m3 (13) 22.0
 
July 19, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) 0.2 ppb (2) 12.0 μg/m3 (11) 2.6 μg/m3 (11) 22.0
 
July 19, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) 0.2 ppb (2) 17.0 μg/m3 (15) 7.0 μg/m3 (29) 29.0
 
July 19, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) 0.2 ppb (2) 10.0 μg/m3 (9) 3.2 μg/m3 (13) 25.0
 
July 19, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) 0.1 ppb (1) 8.0 μg/m3 (7) 2.2 μg/m3 (9) 31.0
 
July 19, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) 0.1 ppb (1) 10.0 μg/m3 (9) 1.8 μg/m3 (8) 35.0
 
July 19, 2019, midnight N/A N/A N/A N/A N/A N/A 47.0 ppb (36) 0.1 ppb (1) 15.0 μg/m3 (14) 4.3 μg/m3 (18) 36.0
 
July 18, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) 0.1 ppb (1) 21.0 μg/m3 (19) 6.2 μg/m3 (26) 38.0
 
July 18, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) 0.1 ppb (1) 21.0 μg/m3 (19) 5.7 μg/m3 (24) 42.0
 
July 18, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) 0.1 ppb (1) 17.0 μg/m3 (15) 5.3 μg/m3 (22) 45.0
 
July 18, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (50) 0.1 ppb (1) 16.0 μg/m3 (15) 4.6 μg/m3 (19) 50.0
 
July 18, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 69.0 ppb (53) 0.1 ppb (1) 18.0 μg/m3 (16) 6.8 μg/m3 (28) 53.0
 
July 18, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (50) 0.1 ppb (1) 16.0 μg/m3 (15) 6.1 μg/m3 (25) 50.0
 
July 18, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) 0.1 ppb (1) 19.0 μg/m3 (17) 8.2 μg/m3 (34) 39.0
 
July 18, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) 0.2 ppb (2) 20.0 μg/m3 (18) 5.6 μg/m3 (23) 28.0
 
July 18, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) 0.2 ppb (2) 15.0 μg/m3 (14) 3.0 μg/m3 (12) 22.0
 
July 18, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) 0.2 ppb (2) 24.0 μg/m3 (22) 7.4 μg/m3 (31) 31.0
 
July 18, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) 0.2 ppb (2) 26.0 μg/m3 (24) 6.6 μg/m3 (28) 28.0
 
July 18, 2019, noon N/A N/A N/A N/A N/A N/A 24.0 ppb (18) 0.2 ppb (2) 12.0 μg/m3 (11) 4.0 μg/m3 (17) 18.0
 
July 18, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) 0.1 ppb (1) 9.0 μg/m3 (8) 2.1 μg/m3 (9) 22.0
 
July 18, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) 0.1 ppb (1) 15.0 μg/m3 (14) 6.3 μg/m3 (26) 26.0
 
July 18, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) 0.1 ppb (1) 17.0 μg/m3 (15) 7.2 μg/m3 (30) 30.0
 
July 18, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) 0.1 ppb (1) 14.0 μg/m3 (13) 4.1 μg/m3 (17) 22.0
 
July 18, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) 0.1 ppb (1) 16.0 μg/m3 (15) 3.7 μg/m3 (15) 28.0
 
July 18, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) 0.1 ppb (1) 16.0 μg/m3 (15) 0.9 μg/m3 (4) 30.0
 
July 18, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) 0.1 ppb (1) 14.0 μg/m3 (13) 1.5 μg/m3 (6) 31.0
 
July 18, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) 0.1 ppb (1) 15.0 μg/m3 (14) 4.5 μg/m3 (19) 28.0
 
July 18, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) 0.1 ppb (1) 22.0 μg/m3 (20) 7.9 μg/m3 (33) 33.0
 
July 18, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) 0.1 ppb (1) 23.0 μg/m3 (21) 3.8 μg/m3 (16) 31.0
 
July 18, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) 0.1 ppb (1) 26.0 μg/m3 (24) 4.9 μg/m3 (20) 33.0
 
July 18, 2019, midnight N/A N/A N/A N/A N/A N/A 44.0 ppb (34) 0.1 ppb (1) 30.0 μg/m3 (27) 6.5 μg/m3 (27) 34.0
 
July 17, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) 0.1 ppb (1) 23.0 μg/m3 (21) 5.1 μg/m3 (21) 36.0
 
July 17, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) 0.1 ppb (1) 27.0 μg/m3 (25) 8.9 μg/m3 (37) 38.0
 
July 17, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (52) 0.1 ppb (1) 29.0 μg/m3 (26) 7.3 μg/m3 (30) 52.0
 
July 17, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (52) 0.1 ppb (1) 29.0 μg/m3 (26) 7.4 μg/m3 (31) 52.0
 
July 17, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) 0.1 ppb (1) 28.0 μg/m3 (25) 4.4 μg/m3 (18) 36.0
 
July 17, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) 0.1 ppb (1) 45.0 μg/m3 (41) 6.6 μg/m3 (28) 41.0
 
July 17, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) 0.1 ppb (1) 55.0 μg/m3 (50) 7.5 μg/m3 (31) 50.0
 
July 17, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) 0.1 ppb (1) 32.0 μg/m3 (29) 6.4 μg/m3 (27) 29.0
 
July 17, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) 0.1 ppb (1) 31.0 μg/m3 (28) 6.8 μg/m3 (28) 28.0
 
July 17, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) 0.2 ppb (2) 33.0 μg/m3 (30) 5.5 μg/m3 (23) 30.0
 
July 17, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) 0.3 ppb (3) 41.0 μg/m3 (37) 8.0 μg/m3 (33) 37.0
 
July 17, 2019, noon N/A N/A N/A N/A N/A N/A 4.0 ppb (3) 0.3 ppb (3) 29.0 μg/m3 (26) 7.7 μg/m3 (32) 32.0
 
July 17, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) 0.2 ppb (2) 19.0 μg/m3 (17) 5.5 μg/m3 (23) 23.0
 
July 17, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) 0.1 ppb (1) 18.0 μg/m3 (16) 5.8 μg/m3 (24) 24.0
 
July 17, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) 0.1 ppb (1) 20.0 μg/m3 (18) 7.0 μg/m3 (29) 29.0
 
July 17, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) 0.2 ppb (2) 17.0 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
July 17, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) 0.2 ppb (2) 12.0 μg/m3 (11) 4.6 μg/m3 (19) 19.0
 
July 17, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) 0.2 ppb (2) 13.0 μg/m3 (12) 4.2 μg/m3 (18) 21.0
 
July 17, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) 0.2 ppb (2) 14.0 μg/m3 (13) 4.4 μg/m3 (18) 25.0
 
July 17, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) 0.1 ppb (1) 13.0 μg/m3 (12) 3.1 μg/m3 (13) 28.0
 
July 17, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) 0.1 ppb (1) 12.0 μg/m3 (11) 2.9 μg/m3 (12) 33.0
 
July 17, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) 0.1 ppb (1) 13.0 μg/m3 (12) 3.2 μg/m3 (13) 38.0
 
July 17, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) 0.1 ppb (1) 15.0 μg/m3 (14) 3.9 μg/m3 (16) 41.0
 
July 17, 2019, midnight N/A N/A N/A N/A N/A N/A 56.0 ppb (43) 0.1 ppb (1) 16.0 μg/m3 (15) 4.1 μg/m3 (17) 43.0
 
July 16, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) 0.1 ppb (1) 15.0 μg/m3 (14) 5.1 μg/m3 (21) 45.0
 
July 16, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (48) 0.1 ppb (1) 13.0 μg/m3 (12) 3.0 μg/m3 (12) 48.0
 
July 16, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 69.0 ppb (53) 0.1 ppb (1) 16.0 μg/m3 (15) 4.0 μg/m3 (17) 53.0
 
July 16, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 72.0 ppb (56) 0.1 ppb (1) 15.0 μg/m3 (14) 2.8 μg/m3 (12) 56.0
 
July 16, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 66.0 ppb (51) 0.1 ppb (1) 13.0 μg/m3 (12) 2.6 μg/m3 (11) 51.0
 
July 16, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 66.0 ppb (51) 0.1 ppb (1) 20.0 μg/m3 (18) 6.3 μg/m3 (26) 51.0
 
July 16, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (49) 0.2 ppb (2) 30.0 μg/m3 (27) 4.0 μg/m3 (17) 49.0
 
July 16, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) 0.2 ppb (2) 37.0 μg/m3 (34) 8.4 μg/m3 (35) 40.0
 
July 16, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) 0.2 ppb (2) 49.0 μg/m3 (45) 11.0 μg/m3 (46) 46.0
 
July 16, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) 0.3 ppb (3) 52.0 μg/m3 (47) 10.4 μg/m3 (43) 47.0
 
July 16, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) 0.3 ppb (3) 40.0 μg/m3 (36) 7.0 μg/m3 (29) 36.0
 
July 16, 2019, noon N/A N/A N/A N/A N/A N/A 14.0 ppb (11) 0.2 ppb (2) 25.0 μg/m3 (23) 5.7 μg/m3 (24) 24.0
 
July 16, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) 0.2 ppb (2) 24.0 μg/m3 (22) 3.9 μg/m3 (16) 22.0
 
July 16, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) 0.2 ppb (2) 30.0 μg/m3 (27) 9.1 μg/m3 (38) 38.0
 
July 16, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) 0.2 ppb (2) 21.0 μg/m3 (19) 5.7 μg/m3 (24) 24.0
 
July 16, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) 0.2 ppb (2) 25.0 μg/m3 (23) 7.2 μg/m3 (30) 30.0
 
July 16, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) 0.2 ppb (2) 20.0 μg/m3 (18) 4.7 μg/m3 (20) 23.0
 
July 16, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) 0.2 ppb (2) 15.0 μg/m3 (14) 4.7 μg/m3 (20) 20.0
 
July 16, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) 0.3 ppb (3) 15.0 μg/m3 (14) 5.9 μg/m3 (25) 25.0
 
July 16, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) 0.2 ppb (2) 14.0 μg/m3 (13) 5.4 μg/m3 (23) 27.0
 
July 16, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) 0.2 ppb (2) 11.0 μg/m3 (10) 2.3 μg/m3 (10) 29.0
 
July 16, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) 0.1 ppb (1) 11.0 μg/m3 (10) 3.2 μg/m3 (13) 37.0
 
July 16, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) 0.1 ppb (1) 10.0 μg/m3 (9) 2.5 μg/m3 (10) 41.0
 
July 16, 2019, midnight N/A N/A N/A N/A N/A N/A 55.0 ppb (42) 0.1 ppb (1) 17.0 μg/m3 (15) 7.7 μg/m3 (32) 42.0
 
July 15, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) 0.1 ppb (1) 24.0 μg/m3 (22) 9.2 μg/m3 (38) 45.0
 
July 15, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (52) 0.1 ppb (1) 25.0 μg/m3 (23) 8.9 μg/m3 (37) 52.0
 
July 15, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 72.0 ppb (56) 0.1 ppb (1) 24.0 μg/m3 (22) 5.0 μg/m3 (21) 56.0
 
July 15, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 77.0 ppb (60) 0.1 ppb (1) 24.0 μg/m3 (22) 6.2 μg/m3 (26) 60.0
 
July 15, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 77.0 ppb (60) 0.2 ppb (2) 20.0 μg/m3 (18) 6.2 μg/m3 (26) 60.0
 
July 15, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 70.0 ppb (54) 0.2 ppb (2) 20.0 μg/m3 (18) 6.6 μg/m3 (28) 54.0
 
July 15, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (50) 0.2 ppb (2) N/A N/A 50.0
 
July 15, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) 0.2 ppb (2) N/A N/A 44.0
 
July 15, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 30.0 μg/m3 (27) 2.5 μg/m3 (10) 34.0
 
July 15, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (2) 42.0 μg/m3 (38) 8.6 μg/m3 (36) 38.0
 
July 15, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) 0.2 ppb (2) 39.0 μg/m3 (35) 8.5 μg/m3 (35) 35.0
 
July 15, 2019, noon N/A N/A N/A N/A N/A N/A 21.0 ppb (16) 0.2 ppb (2) 20.0 μg/m3 (18) 4.4 μg/m3 (18) 18.0
 
July 15, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) 0.2 ppb (2) 18.0 μg/m3 (16) 6.4 μg/m3 (27) 27.0
 
July 15, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) 0.1 ppb (1) 15.0 μg/m3 (14) 3.4 μg/m3 (14) 25.0
 
July 15, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) 0.1 ppb (1) 24.0 μg/m3 (22) 4.6 μg/m3 (19) 27.0
 
July 15, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) 0.1 ppb (1) 24.0 μg/m3 (22) 4.1 μg/m3 (17) 27.0
 
July 15, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) 0.1 ppb (1) 27.0 μg/m3 (25) 6.8 μg/m3 (28) 29.0
 
July 15, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) 0.2 ppb (2) 13.0 μg/m3 (12) 5.2 μg/m3 (22) 26.0
 
July 15, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) 0.2 ppb (2) 12.0 μg/m3 (11) 6.4 μg/m3 (27) 28.0
 
July 15, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) 0.2 ppb (2) 13.0 μg/m3 (12) 6.2 μg/m3 (26) 30.0
 
July 15, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) 0.1 ppb (1) 15.0 μg/m3 (14) 5.3 μg/m3 (22) 31.0
 
July 15, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) 0.1 ppb (1) 16.0 μg/m3 (15) 2.6 μg/m3 (11) 34.0
 
July 15, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) 0.1 ppb (1) 16.0 μg/m3 (15) 4.6 μg/m3 (19) 36.0
 
July 15, 2019, midnight N/A N/A N/A N/A N/A N/A 50.0 ppb (38) 0.1 ppb (1) 17.0 μg/m3 (15) 5.0 μg/m3 (21) 38.0
 
July 14, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) 0.1 ppb (1) 17.0 μg/m3 (15) 6.3 μg/m3 (26) 40.0
 
July 14, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) 0.1 ppb (1) 16.0 μg/m3 (15) 4.7 μg/m3 (20) 40.0
 
July 14, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) 0.1 ppb (1) 16.0 μg/m3 (15) 5.8 μg/m3 (24) 40.0
 
July 14, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) 0.1 ppb (1) 17.0 μg/m3 (15) 7.2 μg/m3 (30) 41.0
 
July 14, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (46) 0.1 ppb (1) 16.0 μg/m3 (15) 6.2 μg/m3 (26) 46.0
 
July 14, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (49) 0.1 ppb (1) 17.0 μg/m3 (15) 6.3 μg/m3 (26) 49.0
 
July 14, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (46) 0.1 ppb (1) 17.0 μg/m3 (15) 6.7 μg/m3 (28) 46.0
 
July 14, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) 0.1 ppb (1) 15.0 μg/m3 (14) 5.5 μg/m3 (23) 37.0
 
July 14, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) 0.1 ppb (1) 18.0 μg/m3 (16) 6.5 μg/m3 (27) 36.0
 
July 14, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) 0.2 ppb (2) 21.0 μg/m3 (19) 6.4 μg/m3 (27) 29.0
 
July 14, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) 0.2 ppb (2) 18.0 μg/m3 (16) 5.2 μg/m3 (22) 24.0
 
July 14, 2019, noon N/A N/A N/A N/A N/A N/A 34.0 ppb (26) 0.1 ppb (1) 15.0 μg/m3 (14) 3.6 μg/m3 (15) 26.0
 
July 14, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) 0.1 ppb (1) 13.0 μg/m3 (12) 3.8 μg/m3 (16) 28.0
 
July 14, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) 0.1 ppb (1) 16.0 μg/m3 (15) 6.7 μg/m3 (28) 28.0
 
July 14, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) 0.1 ppb (1) 14.0 μg/m3 (13) 4.9 μg/m3 (20) 31.0
 
July 14, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) 0.1 ppb (1) 16.0 μg/m3 (15) 4.6 μg/m3 (19) 32.0
 
July 14, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) 0.1 ppb (1) 41.0 μg/m3 (37) 6.4 μg/m3 (27) 37.0
 
July 14, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) 0.1 ppb (1) 87.0 μg/m3 (66) 8.1 μg/m3 (34) 66.0
 
July 14, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) 0.2 ppb (2) 24.0 μg/m3 (22) 1.9 μg/m3 (8) 29.0
 
July 14, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) 0.2 ppb (2) 13.0 μg/m3 (12) 3.7 μg/m3 (15) 28.0
 
July 14, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) 0.2 ppb (2) 11.0 μg/m3 (10) 2.5 μg/m3 (10) 32.0
 
July 14, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) 0.1 ppb (1) 13.0 μg/m3 (12) 4.4 μg/m3 (18) 37.0
 
July 14, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) 0.1 ppb (1) 15.0 μg/m3 (14) 4.4 μg/m3 (18) 40.0
 
July 14, 2019, midnight N/A N/A N/A N/A N/A N/A 53.0 ppb (41) 0.1 ppb (1) 20.0 μg/m3 (18) 6.3 μg/m3 (26) 41.0
 
July 13, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) 0.1 ppb (1) 17.0 μg/m3 (15) 4.8 μg/m3 (20) 42.0
 
July 13, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) 0.1 ppb (1) 19.0 μg/m3 (17) 5.5 μg/m3 (23) 42.0
 
July 13, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) 0.1 ppb (1) 18.0 μg/m3 (16) 6.4 μg/m3 (27) 42.0
 
July 13, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) 0.1 ppb (1) 18.0 μg/m3 (16) 5.9 μg/m3 (25) 43.0
 
July 13, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (52) 0.1 ppb (1) 19.0 μg/m3 (17) 7.0 μg/m3 (29) 52.0
 
July 13, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 77.0 ppb (60) 0.1 ppb (1) 16.0 μg/m3 (15) 5.4 μg/m3 (23) 60.0
 
July 13, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (47) 0.1 ppb (1) 19.0 μg/m3 (17) 4.6 μg/m3 (19) 47.0
 
July 13, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) 0.1 ppb (1) 23.0 μg/m3 (21) 4.6 μg/m3 (19) 44.0
 
July 13, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) 0.2 ppb (2) 25.0 μg/m3 (23) 6.3 μg/m3 (26) 39.0
 
July 13, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) 0.2 ppb (2) 30.0 μg/m3 (27) 6.7 μg/m3 (28) 32.0
 
July 13, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) 0.2 ppb (2) 26.0 μg/m3 (24) 5.5 μg/m3 (23) 24.0
 
July 13, 2019, noon N/A N/A N/A N/A N/A N/A 30.0 ppb (23) 0.2 ppb (2) 12.0 μg/m3 (11) 3.8 μg/m3 (16) 23.0
 
July 13, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) 0.1 ppb (1) 6.0 μg/m3 (5) 2.3 μg/m3 (10) 28.0
 
July 13, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) 0.1 ppb (1) 9.0 μg/m3 (8) 5.5 μg/m3 (23) 32.0
 
July 13, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) 0.1 ppb (1) 9.0 μg/m3 (8) 4.2 μg/m3 (18) 32.0
 
July 13, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) 0.1 ppb (1) 10.0 μg/m3 (9) 4.3 μg/m3 (18) 34.0
 
July 13, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) 0.1 ppb (1) 9.0 μg/m3 (8) 3.3 μg/m3 (14) 35.0