ID: 86

AQSQID: 040131003

Site Name: Mesa - Brooks Reservoir

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

Updated: Sept. 26, 2020, 6:39 p.m.

Location: Mesa (Swest), AZ

Reporting: True, Located: True

Current AQI: 32.0

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
Sept. 26, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) 0.1 ppb (1) 21.7 μg/m3 (20) 7.6 μg/m3 (32) 32.0
 
Sept. 26, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) 0.2 ppb (2) 30.5 μg/m3 (28) 8.2 μg/m3 (34) 34.0
 
Sept. 26, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) 0.3 ppb (3) 38.0 μg/m3 (35) 8.6 μg/m3 (36) 36.0
 
Sept. 26, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) 0.3 ppb (3) 34.2 μg/m3 (31) 8.2 μg/m3 (34) 34.0
 
Sept. 26, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) 0.2 ppb (2) 31.7 μg/m3 (29) 8.1 μg/m3 (34) 34.0
 
Sept. 26, 2020, noon N/A N/A N/A N/A N/A N/A 16.0 ppb (12) 0.2 ppb (2) 33.8 μg/m3 (31) 10.3 μg/m3 (43) 43.0
 
Sept. 26, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) 0.3 ppb (3) 33.1 μg/m3 (30) 11.4 μg/m3 (48) 48.0
 
Sept. 26, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) 0.4 ppb (4) 28.5 μg/m3 (26) 10.8 μg/m3 (45) 45.0
 
Sept. 26, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (5) 0.5 ppb (6) 29.3 μg/m3 (27) 9.2 μg/m3 (38) 38.0
 
Sept. 26, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) 0.3 ppb (3) 25.5 μg/m3 (23) 8.3 μg/m3 (35) 35.0
 
Sept. 26, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) 0.3 ppb (3) 30.8 μg/m3 (28) 11.8 μg/m3 (49) 49.0
 
Sept. 26, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) 0.4 ppb (4) 35.0 μg/m3 (32) 12.0 μg/m3 (50) 50.0
 
Sept. 26, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) 0.5 ppb (6) 37.4 μg/m3 (34) 14.5 μg/m3 (55) 55.0
 
Sept. 26, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) 0.5 ppb (6) 27.1 μg/m3 (25) 10.4 μg/m3 (43) 43.0
 
Sept. 26, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) 0.4 ppb (4) 20.0 μg/m3 (18) 6.1 μg/m3 (25) 25.0
 
Sept. 26, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) 0.3 ppb (3) 18.7 μg/m3 (17) 5.8 μg/m3 (24) 29.0
 
Sept. 26, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) 0.2 ppb (2) 19.9 μg/m3 (18) 7.5 μg/m3 (31) 42.0
 
Sept. 26, 2020, midnight N/A N/A N/A N/A N/A N/A 75.0 ppb (58) 0.1 ppb (1) 22.4 μg/m3 (20) 8.7 μg/m3 (36) 58.0
 
Sept. 25, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 76.0 ppb (59) 0.1 ppb (1) 20.3 μg/m3 (18) 7.3 μg/m3 (30) 59.0
 
Sept. 25, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 71.0 ppb (55) 0.1 ppb (1) 17.5 μg/m3 (16) 6.6 μg/m3 (28) 55.0
 
Sept. 25, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (48) 0.1 ppb (1) 16.5 μg/m3 (15) 5.9 μg/m3 (25) 48.0
 
Sept. 25, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 66.0 ppb (51) 0.1 ppb (1) 22.3 μg/m3 (20) 6.9 μg/m3 (29) 51.0
 
Sept. 25, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 69.0 ppb (53) 0.1 ppb (1) 25.8 μg/m3 (23) 8.9 μg/m3 (37) 53.0
 
Sept. 25, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) 0.1 ppb (1) 28.8 μg/m3 (26) 9.3 μg/m3 (39) 45.0
 
Sept. 25, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) 0.2 ppb (2) 38.2 μg/m3 (35) 10.4 μg/m3 (43) 43.0
 
Sept. 25, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) 0.3 ppb (3) 46.8 μg/m3 (43) 10.4 μg/m3 (43) 43.0
 
Sept. 25, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) 0.3 ppb (3) 50.8 μg/m3 (46) 12.7 μg/m3 (51) 51.0
 
Sept. 25, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) 0.4 ppb (4) 46.0 μg/m3 (42) 12.5 μg/m3 (51) 51.0
 
Sept. 25, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) 0.5 ppb (6) 36.8 μg/m3 (33) 12.5 μg/m3 (51) 51.0
 
Sept. 25, 2020, noon N/A N/A N/A N/A N/A N/A 6.0 ppb (5) 0.4 ppb (4) 38.8 μg/m3 (35) 14.7 μg/m3 (56) 56.0
 
Sept. 25, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 0.5 ppb (6) 37.4 μg/m3 (34) 15.3 μg/m3 (57) 57.0
 
Sept. 25, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) 0.4 ppb (4) 27.8 μg/m3 (25) 11.0 μg/m3 (46) 46.0
 
Sept. 25, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) 0.3 ppb (3) 26.7 μg/m3 (24) 10.1 μg/m3 (42) 42.0
 
Sept. 25, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) 0.3 ppb (3) 29.2 μg/m3 (27) 12.0 μg/m3 (50) 50.0
 
Sept. 25, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) 0.3 ppb (3) 28.4 μg/m3 (26) 11.8 μg/m3 (49) 49.0
 
Sept. 25, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) 0.3 ppb (3) 29.6 μg/m3 (27) 9.4 μg/m3 (39) 39.0
 
Sept. 25, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) 0.3 ppb (3) 29.5 μg/m3 (27) 9.4 μg/m3 (39) 39.0
 
Sept. 25, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) 0.2 ppb (2) 31.0 μg/m3 (28) 8.4 μg/m3 (35) 35.0
 
Sept. 25, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) 0.2 ppb (2) 29.6 μg/m3 (27) 9.7 μg/m3 (40) 40.0
 
Sept. 25, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) 0.2 ppb (2) 23.1 μg/m3 (21) 6.4 μg/m3 (27) 28.0
 
Sept. 25, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) 0.1 ppb (1) 23.5 μg/m3 (21) 7.8 μg/m3 (32) 38.0
 
Sept. 25, 2020, midnight N/A N/A N/A N/A N/A N/A 64.0 ppb (49) 0.1 ppb (1) 24.9 μg/m3 (23) 10.6 μg/m3 (44) 49.0
 
Sept. 24, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 75.0 ppb (58) 0.1 ppb (1) 29.9 μg/m3 (27) 10.2 μg/m3 (42) 58.0
 
Sept. 24, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 72.0 ppb (56) 0.1 ppb (1) 32.2 μg/m3 (29) 10.7 μg/m3 (45) 56.0
 
Sept. 24, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 74.0 ppb (57) 0.1 ppb (1) 24.7 μg/m3 (22) 9.1 μg/m3 (38) 57.0
 
Sept. 24, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 69.0 ppb (53) 0.1 ppb (1) 23.1 μg/m3 (21) 6.8 μg/m3 (28) 53.0
 
Sept. 24, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (48) 0.1 ppb (1) 27.5 μg/m3 (25) 6.6 μg/m3 (28) 48.0
 
Sept. 24, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) 0.2 ppb (2) 33.5 μg/m3 (30) 9.3 μg/m3 (39) 39.0
 
Sept. 24, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) 0.2 ppb (2) 35.8 μg/m3 (33) 11.3 μg/m3 (47) 47.0
 
Sept. 24, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) 0.2 ppb (2) 37.6 μg/m3 (34) 10.2 μg/m3 (42) 42.0
 
Sept. 24, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) 0.3 ppb (3) 44.0 μg/m3 (40) 12.1 μg/m3 (50) 50.0
 
Sept. 24, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) 0.3 ppb (3) 45.5 μg/m3 (41) 12.5 μg/m3 (51) 51.0
 
Sept. 24, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) 0.4 ppb (4) 47.1 μg/m3 (43) 12.3 μg/m3 (51) 51.0
 
Sept. 24, 2020, noon N/A N/A N/A N/A N/A N/A 6.0 ppb (5) 0.3 ppb (3) 39.8 μg/m3 (36) 10.9 μg/m3 (45) 45.0
 
Sept. 24, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) 0.4 ppb (4) 34.4 μg/m3 (31) 11.8 μg/m3 (49) 49.0
 
Sept. 24, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) 0.4 ppb (4) 31.0 μg/m3 (28) 12.4 μg/m3 (51) 51.0
 
Sept. 24, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) 0.4 ppb (4) 26.0 μg/m3 (24) 10.2 μg/m3 (42) 42.0
 
Sept. 24, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) 0.3 ppb (3) 23.0 μg/m3 (21) 8.4 μg/m3 (35) 35.0
 
Sept. 24, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) 0.2 ppb (2) 28.0 μg/m3 (25) 10.4 μg/m3 (43) 43.0
 
Sept. 24, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) 0.4 ppb (4) 30.0 μg/m3 (27) 10.8 μg/m3 (45) 45.0
 
Sept. 24, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) 0.4 ppb (4) 20.0 μg/m3 (18) 7.7 μg/m3 (32) 32.0
 
Sept. 24, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) 0.3 ppb (3) 19.0 μg/m3 (17) 7.3 μg/m3 (30) 30.0
 
Sept. 24, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) 0.3 ppb (3) 19.0 μg/m3 (17) 7.3 μg/m3 (30) 30.0
 
Sept. 24, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) 0.3 ppb (3) 16.0 μg/m3 (15) 7.6 μg/m3 (32) 32.0
 
Sept. 24, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) 0.1 ppb (1) 17.0 μg/m3 (15) 8.8 μg/m3 (37) 37.0
 
Sept. 24, 2020, midnight N/A N/A N/A N/A N/A N/A 51.0 ppb (39) 0.1 ppb (1) 16.0 μg/m3 (15) 7.2 μg/m3 (30) 39.0
 
Sept. 23, 2020, 11 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
 
Sept. 23, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) 0.1 ppb (1) 21.0 μg/m3 (19) 6.7 μg/m3 (28) 44.0
 
Sept. 23, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) 0.1 ppb (1) 22.0 μg/m3 (20) 8.3 μg/m3 (35) 45.0
 
Sept. 23, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (48) 0.1 ppb (1) 20.0 μg/m3 (18) 8.9 μg/m3 (37) 48.0
 
Sept. 23, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (52) 0.1 ppb (1) 22.0 μg/m3 (20) 9.3 μg/m3 (39) 52.0
 
Sept. 23, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (48) 0.1 ppb (1) 20.0 μg/m3 (18) 7.5 μg/m3 (31) 48.0
 
Sept. 23, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) 0.2 ppb (2) 22.0 μg/m3 (20) 9.0 μg/m3 (38) 38.0
 
Sept. 23, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) 0.2 ppb (2) 21.0 μg/m3 (19) 7.0 μg/m3 (29) 34.0
 
Sept. 23, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) 0.2 ppb (2) 24.0 μg/m3 (22) 6.8 μg/m3 (28) 28.0
 
Sept. 23, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) 0.3 ppb (3) 21.0 μg/m3 (19) 8.2 μg/m3 (34) 34.0
 
Sept. 23, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) 0.3 ppb (3) 36.0 μg/m3 (33) 11.0 μg/m3 (46) 46.0
 
Sept. 23, 2020, noon N/A N/A N/A N/A N/A N/A 12.0 ppb (9) 0.4 ppb (4) 29.0 μg/m3 (26) 10.9 μg/m3 (45) 45.0
 
Sept. 23, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) 0.2 ppb (2) 16.0 μg/m3 (15) 8.5 μg/m3 (35) 35.0
 
Sept. 23, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) 0.3 ppb (3) 18.0 μg/m3 (16) 8.8 μg/m3 (37) 37.0
 
Sept. 23, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) 0.3 ppb (3) 26.0 μg/m3 (24) 11.2 μg/m3 (47) 47.0
 
Sept. 23, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) 0.3 ppb (3) 25.0 μg/m3 (23) 11.7 μg/m3 (49) 49.0
 
Sept. 23, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) 0.3 ppb (3) 29.0 μg/m3 (26) 13.7 μg/m3 (54) 54.0
 
Sept. 23, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) 0.6 ppb (7) 43.0 μg/m3 (39) 20.6 μg/m3 (68) 68.0
 
Sept. 23, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) 0.8 ppb (9) 71.0 μg/m3 (58) 44.5 μg/m3 (122) 122.0
 
Sept. 23, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) 0.6 ppb (7) 68.0 μg/m3 (56) 46.0 μg/m3 (126) 126.0
 
Sept. 23, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) 0.5 ppb (6) 34.0 μg/m3 (31) 16.9 μg/m3 (60) 60.0
 
Sept. 23, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) 0.4 ppb (4) 26.0 μg/m3 (24) 11.1 μg/m3 (46) 46.0
 
Sept. 23, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (47) 0.2 ppb (2) 19.0 μg/m3 (17) 8.1 μg/m3 (34) 47.0
 
Sept. 23, 2020, midnight N/A N/A N/A N/A N/A N/A 70.0 ppb (54) 0.1 ppb (1) 18.0 μg/m3 (16) 5.8 μg/m3 (24) 54.0
 
Sept. 22, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 72.0 ppb (56) 0.1 ppb (1) 19.0 μg/m3 (17) 6.4 μg/m3 (27) 56.0
 
Sept. 22, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 74.0 ppb (57) 0.2 ppb (2) 20.0 μg/m3 (18) 7.1 μg/m3 (30) 57.0
 
Sept. 22, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 72.0 ppb (56) 0.2 ppb (2) 21.0 μg/m3 (19) 8.5 μg/m3 (35) 56.0
 
Sept. 22, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (50) 0.1 ppb (1) 23.0 μg/m3 (21) 10.5 μg/m3 (44) 50.0
 
Sept. 22, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) 0.2 ppb (2) 25.0 μg/m3 (23) 10.3 μg/m3 (43) 44.0
 
Sept. 22, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) 0.2 ppb (2) 31.0 μg/m3 (28) 12.1 μg/m3 (50) 50.0
 
Sept. 22, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) 0.2 ppb (2) N/A N/A 29.0
 
Sept. 22, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) 0.2 ppb (2) N/A N/A 25.0
 
Sept. 22, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 47.0 μg/m3 (43) 13.7 μg/m3 (54) 54.0
 
Sept. 22, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) 38.0 μg/m3 (35) 12.4 μg/m3 (51) 51.0
 
Sept. 22, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) 0.5 ppb (6) 30.0 μg/m3 (27) 12.9 μg/m3 (52) 52.0
 
Sept. 22, 2020, noon N/A N/A N/A N/A N/A N/A 10.0 ppb (8) 0.4 ppb (4) 31.0 μg/m3 (28) 14.7 μg/m3 (56) 56.0
 
Sept. 22, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) 0.4 ppb (4) 31.0 μg/m3 (28) 13.8 μg/m3 (54) 54.0
 
Sept. 22, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) 0.3 ppb (3) 33.0 μg/m3 (30) 14.4 μg/m3 (55) 55.0
 
Sept. 22, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) 0.3 ppb (3) 31.0 μg/m3 (28) 11.8 μg/m3 (49) 49.0
 
Sept. 22, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) 0.3 ppb (3) 31.0 μg/m3 (28) 14.0 μg/m3 (54) 54.0
 
Sept. 22, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) 0.4 ppb (4) 35.0 μg/m3 (32) 15.4 μg/m3 (57) 57.0
 
Sept. 22, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) 0.4 ppb (4) 32.0 μg/m3 (29) 14.7 μg/m3 (56) 56.0
 
Sept. 22, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) 0.4 ppb (4) 29.0 μg/m3 (26) 14.2 μg/m3 (55) 55.0
 
Sept. 22, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) 0.3 ppb (3) 23.0 μg/m3 (21) 11.4 μg/m3 (48) 48.0
 
Sept. 22, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) 0.2 ppb (2) 20.0 μg/m3 (18) 9.8 μg/m3 (41) 41.0
 
Sept. 22, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) 0.2 ppb (2) 20.0 μg/m3 (18) 10.2 μg/m3 (42) 42.0
 
Sept. 22, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) 0.1 ppb (1) 21.0 μg/m3 (19) 9.7 μg/m3 (40) 40.0
 
Sept. 22, 2020, midnight N/A N/A N/A N/A N/A N/A 55.0 ppb (42) 0.1 ppb (1) 26.0 μg/m3 (24) 8.5 μg/m3 (35) 42.0
 
Sept. 21, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (48) 0.1 ppb (1) 39.0 μg/m3 (35) 12.3 μg/m3 (51) 51.0
 
Sept. 21, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 76.0 ppb (59) 0.2 ppb (2) 32.0 μg/m3 (29) 11.7 μg/m3 (49) 59.0
 
Sept. 21, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 78.0 ppb (61) N/A 28.0 μg/m3 (25) 10.9 μg/m3 (45) 61.0
 
Sept. 21, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 70.0 ppb (54) N/A 25.0 μg/m3 (23) 10.7 μg/m3 (45) 54.0
 
Sept. 21, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (50) 0.1 ppb (1) 28.0 μg/m3 (25) 11.8 μg/m3 (49) 50.0
 
Sept. 21, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) 0.2 ppb (2) 24.0 μg/m3 (22) 10.1 μg/m3 (42) 43.0
 
Sept. 21, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) 0.2 ppb (2) 39.0 μg/m3 (35) 12.0 μg/m3 (50) 50.0
 
Sept. 21, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) 0.3 ppb (3) 48.0 μg/m3 (44) 12.6 μg/m3 (51) 51.0
 
Sept. 21, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) 0.3 ppb (3) 50.0 μg/m3 (45) 13.3 μg/m3 (53) 53.0
 
Sept. 21, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) 0.3 ppb (3) 52.0 μg/m3 (47) 14.0 μg/m3 (54) 54.0
 
Sept. 21, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) 0.3 ppb (3) 41.0 μg/m3 (37) 13.3 μg/m3 (53) 53.0
 
Sept. 21, 2020, noon N/A N/A N/A N/A N/A N/A 13.0 ppb (10) 0.3 ppb (3) 33.0 μg/m3 (30) 13.9 μg/m3 (54) 54.0
 
Sept. 21, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) 0.3 ppb (3) 37.0 μg/m3 (34) 15.3 μg/m3 (57) 57.0
 
Sept. 21, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) 0.2 ppb (2) 27.0 μg/m3 (25) 13.2 μg/m3 (53) 53.0
 
Sept. 21, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) 0.2 ppb (2) 23.0 μg/m3 (21) 12.4 μg/m3 (51) 51.0
 
Sept. 21, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) 0.2 ppb (2) 23.0 μg/m3 (21) 12.0 μg/m3 (50) 50.0
 
Sept. 21, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) 0.2 ppb (2) 26.0 μg/m3 (24) 14.1 μg/m3 (54) 54.0
 
Sept. 21, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) 0.3 ppb (3) 32.0 μg/m3 (29) 16.4 μg/m3 (59) 59.0
 
Sept. 21, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) 0.5 ppb (6) 35.0 μg/m3 (32) 18.9 μg/m3 (65) 65.0
 
Sept. 21, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) 0.5 ppb (6) 29.0 μg/m3 (26) 14.9 μg/m3 (56) 56.0
 
Sept. 21, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) 0.4 ppb (4) 21.0 μg/m3 (19) 9.7 μg/m3 (40) 40.0
 
Sept. 21, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) 0.3 ppb (3) 18.0 μg/m3 (16) 9.3 μg/m3 (39) 39.0
 
Sept. 21, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (48) 0.1 ppb (1) 17.0 μg/m3 (15) 8.9 μg/m3 (37) 48.0
 
Sept. 21, 2020, midnight N/A N/A N/A N/A N/A N/A 68.0 ppb (52) 0.1 ppb (1) 14.0 μg/m3 (13) 8.0 μg/m3 (33) 52.0
 
Sept. 20, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (52) 0.1 ppb (1) 14.0 μg/m3 (13) 7.9 μg/m3 (33) 52.0
 
Sept. 20, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (52) 0.1 ppb (1) 16.0 μg/m3 (15) 9.3 μg/m3 (39) 52.0
 
Sept. 20, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 69.0 ppb (53) 0.1 ppb (1) 19.0 μg/m3 (17) 11.5 μg/m3 (48) 53.0
 
Sept. 20, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 66.0 ppb (51) 0.1 ppb (1) 17.0 μg/m3 (15) 9.1 μg/m3 (38) 51.0
 
Sept. 20, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (49) 0.1 ppb (1) 22.0 μg/m3 (20) 12.5 μg/m3 (51) 51.0
 
Sept. 20, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (47) 0.1 ppb (1) 22.0 μg/m3 (20) 11.9 μg/m3 (50) 50.0
 
Sept. 20, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) 0.2 ppb (2) 23.0 μg/m3 (21) 11.8 μg/m3 (49) 49.0
 
Sept. 20, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) 0.1 ppb (1) 24.0 μg/m3 (22) 12.7 μg/m3 (51) 51.0
 
Sept. 20, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) 0.2 ppb (2) 22.0 μg/m3 (20) 10.6 μg/m3 (44) 44.0
 
Sept. 20, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) 0.2 ppb (2) 19.0 μg/m3 (17) 8.7 μg/m3 (36) 36.0
 
Sept. 20, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) 0.2 ppb (2) 20.0 μg/m3 (18) 11.1 μg/m3 (46) 46.0
 
Sept. 20, 2020, noon N/A N/A N/A N/A N/A N/A 38.0 ppb (29) 0.2 ppb (2) 20.0 μg/m3 (18) 9.7 μg/m3 (40) 40.0
 
Sept. 20, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) 0.3 ppb (3) 23.0 μg/m3 (21) 11.7 μg/m3 (49) 49.0
 
Sept. 20, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) 0.4 ppb (4) 26.0 μg/m3 (24) 12.3 μg/m3 (51) 51.0
 
Sept. 20, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) 0.4 ppb (4) 42.0 μg/m3 (38) 15.7 μg/m3 (58) 58.0
 
Sept. 20, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) 0.3 ppb (3) 94.0 μg/m3 (70) 22.6 μg/m3 (73) 73.0
 
Sept. 20, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) 0.2 ppb (2) 21.0 μg/m3 (19) 9.7 μg/m3 (40) 40.0
 
Sept. 20, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) 0.2 ppb (2) 23.0 μg/m3 (21) 11.2 μg/m3 (47) 47.0
 
Sept. 20, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) 0.3 ppb (3) 27.0 μg/m3 (25) 12.7 μg/m3 (51) 51.0
 
Sept. 20, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) 0.5 ppb (6) 32.0 μg/m3 (29) 14.6 μg/m3 (56) 56.0
 
Sept. 20, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) 0.5 ppb (6) 26.0 μg/m3 (24) 14.9 μg/m3 (56) 56.0
 
Sept. 20, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) 0.3 ppb (3) 18.0 μg/m3 (16) 11.6 μg/m3 (48) 48.0
 
Sept. 20, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) 0.1 ppb (1) 14.0 μg/m3 (13) 8.6 μg/m3 (36) 44.0
 
Sept. 20, 2020, midnight N/A N/A N/A N/A N/A N/A 62.0 ppb (48) 0.1 ppb (1) 14.0 μg/m3 (13) 7.6 μg/m3 (32) 48.0
 
Sept. 19, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (48) 0.1 ppb (1) 15.0 μg/m3 (14) 9.0 μg/m3 (38) 48.0
 
Sept. 19, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (48) 0.1 ppb (1) 14.0 μg/m3 (13) 6.3 μg/m3 (26) 48.0
 
Sept. 19, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (48) 0.1 ppb (1) 17.0 μg/m3 (15) 7.9 μg/m3 (33) 48.0
 
Sept. 19, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (47) 0.1 ppb (1) 16.0 μg/m3 (15) 5.1 μg/m3 (21) 47.0
 
Sept. 19, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (46) 0.1 ppb (1) 22.0 μg/m3 (20) 5.5 μg/m3 (23) 46.0
 
Sept. 19, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) 0.1 ppb (1) 26.0 μg/m3 (24) 7.6 μg/m3 (32) 45.0