ID: 86

AQSQID: 040131003

Site Name: Mesa - Brooks Reservoir

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

Updated: April 11, 2021, 3:43 a.m.

Location: Mesa (Swest), AZ

Reporting: True, Located: True

Current AQI: 43.0

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
April 11, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) 0.5 ppb (6) 17.9 μg/m3 (17) 5.2 μg/m3 (22) 22.0
 
April 11, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) 0.3 ppb (4) 13.6 μg/m3 (13) 4.9 μg/m3 (21) 43.0
 
April 11, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) 0.2 ppb (3) 17.7 μg/m3 (17) 7.6 μg/m3 (32) 65.0
 
April 11, 2021, midnight N/A N/A N/A N/A N/A N/A 62.0 ppb (74) 0.2 ppb (3) 18.9 μg/m3 (18) 8.9 μg/m3 (38) 74.0
 
April 10, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (78) 0.2 ppb (3) 16.9 μg/m3 (16) 4.5 μg/m3 (19) 78.0
 
April 10, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (81) 0.2 ppb (3) 15.7 μg/m3 (15) 3.0 μg/m3 (13) 81.0
 
April 10, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 66.0 ppb (87) 0.2 ppb (3) 13.7 μg/m3 (13) 4.1 μg/m3 (18) 87.0
 
April 10, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (81) 0.2 ppb (3) 13.8 μg/m3 (13) 5.2 μg/m3 (22) 81.0
 
April 10, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) 0.2 ppb (3) 15.4 μg/m3 (15) 2.7 μg/m3 (12) 65.0
 
April 10, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) 0.3 ppb (4) 18.8 μg/m3 (18) 4.2 μg/m3 (18) 51.0
 
April 10, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) 0.2 ppb (3) 20.1 μg/m3 (19) 6.5 μg/m3 (28) 44.0
 
April 10, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) 0.3 ppb (4) 27.6 μg/m3 (26) 6.4 μg/m3 (27) 38.0
 
April 10, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) 0.3 ppb (4) 29.1 μg/m3 (27) 8.0 μg/m3 (34) 34.0
 
April 10, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) 0.3 ppb (4) 27.1 μg/m3 (26) 7.3 μg/m3 (31) 31.0
 
April 10, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) 0.3 ppb (4) 23.0 μg/m3 (22) 7.9 μg/m3 (33) 33.0
 
April 10, 2021, noon N/A N/A N/A N/A N/A N/A 24.0 ppb (23) 0.3 ppb (4) 22.4 μg/m3 (21) 7.2 μg/m3 (31) 31.0
 
April 10, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) 0.3 ppb (4) 29.0 μg/m3 (27) 7.4 μg/m3 (31) 31.0
 
April 10, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) 0.4 ppb (5) 39.8 μg/m3 (37) 15.4 μg/m3 (58) 58.0
 
April 10, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) 0.5 ppb (6) 29.0 μg/m3 (27) 14.2 μg/m3 (56) 56.0
 
April 10, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) 0.4 ppb (5) 18.7 μg/m3 (18) 6.4 μg/m3 (27) 27.0
 
April 10, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) 0.3 ppb (4) 17.4 μg/m3 (17) 4.2 μg/m3 (18) 32.0
 
April 10, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) 0.3 ppb (4) 21.2 μg/m3 (20) 6.4 μg/m3 (27) 30.0
 
April 10, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) 0.3 ppb (4) 14.5 μg/m3 (14) 1.8 μg/m3 (8) 31.0
 
April 10, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) 0.3 ppb (4) 14.2 μg/m3 (14) 1.0 μg/m3 (5) 39.0
 
April 10, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) 0.4 ppb (5) 18.9 μg/m3 (18) 5.6 μg/m3 (24) 38.0
 
April 10, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) 0.4 ppb (5) 11.8 μg/m3 (11) 3.3 μg/m3 (14) 41.0
 
April 10, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) 0.2 ppb (3) 17.1 μg/m3 (16) 5.7 μg/m3 (24) 58.0
 
April 10, 2021, midnight N/A N/A N/A N/A N/A N/A 62.0 ppb (74) 0.2 ppb (3) 14.8 μg/m3 (14) 3.2 μg/m3 (14) 74.0
 
April 9, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (91) 0.2 ppb (3) 11.6 μg/m3 (11) 1.0 μg/m3 (5) 91.0
 
April 9, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (94) 0.2 ppb (3) 12.3 μg/m3 (12) 3.2 μg/m3 (14) 94.0
 
April 9, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (78) 0.2 ppb (3) 12.3 μg/m3 (12) 3.3 μg/m3 (14) 78.0
 
April 9, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) 0.2 ppb (3) 8.9 μg/m3 (9) 1.5 μg/m3 (7) 61.0
 
April 9, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) 0.2 ppb (3) 13.1 μg/m3 (13) 5.2 μg/m3 (22) 61.0
 
April 9, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) 0.2 ppb (3) 11.9 μg/m3 (12) 1.6 μg/m3 (7) 50.0
 
April 9, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) 0.2 ppb (3) 21.5 μg/m3 (20) 4.2 μg/m3 (18) 45.0
 
April 9, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) 0.2 ppb (3) 33.4 μg/m3 (31) 6.3 μg/m3 (27) 38.0
 
April 9, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) 0.3 ppb (4) 40.6 μg/m3 (38) 8.0 μg/m3 (34) 38.0
 
April 9, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) 0.4 ppb (5) 42.0 μg/m3 (39) 9.0 μg/m3 (38) 39.0
 
April 9, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) 0.4 ppb (5) 34.0 μg/m3 (32) 8.1 μg/m3 (34) 34.0
 
April 9, 2021, noon N/A N/A N/A N/A N/A N/A 8.0 ppb (8) 0.3 ppb (4) 29.2 μg/m3 (28) 8.1 μg/m3 (34) 34.0
 
April 9, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) 0.3 ppb (4) 24.1 μg/m3 (23) 5.6 μg/m3 (24) 24.0
 
April 9, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) 0.4 ppb (5) 24.6 μg/m3 (23) 8.9 μg/m3 (38) 38.0
 
April 9, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) 0.3 ppb (4) 21.9 μg/m3 (21) 7.8 μg/m3 (33) 33.0
 
April 9, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) 0.3 ppb (4) 17.8 μg/m3 (17) 4.3 μg/m3 (18) 18.0
 
April 9, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) 0.3 ppb (4) 17.3 μg/m3 (17) 5.3 μg/m3 (23) 24.0
 
April 9, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) 0.4 ppb (5) 22.1 μg/m3 (21) 6.5 μg/m3 (28) 28.0
 
April 9, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) 0.4 ppb (5) 19.9 μg/m3 (19) 3.1 μg/m3 (13) 20.0
 
April 9, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) 0.3 ppb (4) 18.7 μg/m3 (18) 4.6 μg/m3 (20) 27.0
 
April 9, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) 0.3 ppb (4) 13.6 μg/m3 (13) 1.4 μg/m3 (6) 33.0
 
April 9, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) 0.2 ppb (3) 15.7 μg/m3 (15) 2.7 μg/m3 (12) 40.0
 
April 9, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) 0.2 ppb (3) 10.9 μg/m3 (11) 0.9 μg/m3 (4) 46.0
 
April 9, 2021, midnight N/A N/A N/A N/A N/A N/A 55.0 ppb (51) 0.2 ppb (3) 16.1 μg/m3 (15) 3.0 μg/m3 (13) 51.0
 
April 8, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) 0.2 ppb (3) 25.2 μg/m3 (24) 6.6 μg/m3 (28) 50.0
 
April 8, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) 0.2 ppb (3) 28.2 μg/m3 (27) 5.6 μg/m3 (24) 51.0
 
April 8, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) 0.2 ppb (3) 19.4 μg/m3 (18) 5.3 μg/m3 (23) 74.0
 
April 8, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (91) 0.2 ppb (3) 25.6 μg/m3 (24) 9.1 μg/m3 (38) 91.0
 
April 8, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) 0.3 ppb (4) 28.0 μg/m3 (26) 10.1 μg/m3 (43) 68.0
 
April 8, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) 0.3 ppb (4) 22.9 μg/m3 (22) 7.1 μg/m3 (30) 49.0
 
April 8, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) 0.3 ppb (4) 24.8 μg/m3 (23) 5.1 μg/m3 (22) 44.0
 
April 8, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) 0.3 ppb (4) 31.8 μg/m3 (30) 7.7 μg/m3 (33) 36.0
 
April 8, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) 0.3 ppb (4) 36.1 μg/m3 (34) 6.3 μg/m3 (27) 34.0
 
April 8, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) 0.4 ppb (5) 45.6 μg/m3 (43) 8.0 μg/m3 (34) 43.0
 
April 8, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) 0.5 ppb (6) 33.6 μg/m3 (32) 6.2 μg/m3 (26) 32.0
 
April 8, 2021, noon N/A N/A N/A N/A N/A N/A 22.0 ppb (21) 0.3 ppb (4) 29.8 μg/m3 (28) 8.9 μg/m3 (38) 38.0
 
April 8, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) 0.3 ppb (4) 24.1 μg/m3 (23) 6.4 μg/m3 (27) 27.0
 
April 8, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) 0.3 ppb (4) 23.5 μg/m3 (22) 4.7 μg/m3 (20) 25.0
 
April 8, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) 0.4 ppb (5) 26.8 μg/m3 (25) 7.2 μg/m3 (31) 31.0
 
April 8, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) 0.4 ppb (5) 24.3 μg/m3 (23) 4.7 μg/m3 (20) 23.0
 
April 8, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) 0.4 ppb (5) 20.2 μg/m3 (19) 5.0 μg/m3 (21) 21.0
 
April 8, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) 0.4 ppb (5) 24.6 μg/m3 (23) 8.8 μg/m3 (37) 37.0
 
April 8, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) 0.5 ppb (6) 24.3 μg/m3 (23) 9.1 μg/m3 (38) 38.0
 
April 8, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) 0.6 ppb (7) 22.3 μg/m3 (21) 9.5 μg/m3 (40) 40.0
 
April 8, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) 0.5 ppb (6) 17.6 μg/m3 (17) 6.4 μg/m3 (27) 32.0
 
April 8, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) 0.5 ppb (6) 11.5 μg/m3 (11) 2.4 μg/m3 (10) 42.0
 
April 8, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) 0.4 ppb (5) 14.2 μg/m3 (14) 4.2 μg/m3 (18) 58.0
 
April 8, 2021, midnight N/A N/A N/A N/A N/A N/A 61.0 ppb (71) 0.4 ppb (5) 12.5 μg/m3 (12) 0.9 μg/m3 (4) 71.0
 
April 7, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (78) 0.4 ppb (5) 14.1 μg/m3 (14) 2.6 μg/m3 (11) 78.0
 
April 7, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (84) 0.4 ppb (5) 16.7 μg/m3 (16) 5.6 μg/m3 (24) 84.0
 
April 7, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (84) 0.5 ppb (6) 16.7 μg/m3 (16) 5.2 μg/m3 (22) 84.0
 
April 7, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) 0.6 ppb (7) 15.6 μg/m3 (15) 2.3 μg/m3 (10) 74.0
 
April 7, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) 0.6 ppb (7) 21.8 μg/m3 (21) 7.1 μg/m3 (30) 58.0
 
April 7, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) 0.8 ppb (10) 21.4 μg/m3 (20) 7.1 μg/m3 (30) 49.0
 
April 7, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) 0.9 ppb (11) 24.0 μg/m3 (23) 8.4 μg/m3 (36) 46.0
 
April 7, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) 1.1 ppb (13) 21.3 μg/m3 (20) 2.4 μg/m3 (10) 38.0
 
April 7, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.7 μg/m3 (25) 3.1 μg/m3 (13) 25.0
 
April 7, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (4) 36.3 μg/m3 (34) 6.8 μg/m3 (29) 34.0
 
April 7, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) 0.5 ppb (6) 34.9 μg/m3 (33) 9.5 μg/m3 (40) 40.0
 
April 7, 2021, noon N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.4 ppb (5) 27.1 μg/m3 (26) 9.0 μg/m3 (38) 38.0
 
April 7, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) 0.4 ppb (5) 24.2 μg/m3 (23) 8.6 μg/m3 (36) 36.0
 
April 7, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) 0.4 ppb (5) 25.9 μg/m3 (24) 7.5 μg/m3 (32) 32.0
 
April 7, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) 0.4 ppb (5) 27.9 μg/m3 (26) 8.2 μg/m3 (35) 35.0
 
April 7, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) 0.4 ppb (5) 30.5 μg/m3 (29) 7.7 μg/m3 (33) 33.0
 
April 7, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) 0.3 ppb (4) 31.9 μg/m3 (30) 8.5 μg/m3 (36) 36.0
 
April 7, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) 0.3 ppb (4) 35.1 μg/m3 (33) 8.9 μg/m3 (38) 38.0
 
April 7, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) 0.3 ppb (4) 41.5 μg/m3 (39) 10.0 μg/m3 (42) 42.0
 
April 7, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) 0.3 ppb (4) 34.3 μg/m3 (32) 7.5 μg/m3 (32) 32.0
 
April 7, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) 0.3 ppb (4) 19.8 μg/m3 (19) 2.8 μg/m3 (12) 33.0
 
April 7, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) 0.3 ppb (4) 18.0 μg/m3 (17) 3.6 μg/m3 (16) 35.0
 
April 7, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) 0.2 ppb (3) 17.5 μg/m3 (17) 0.7 μg/m3 (3) 38.0
 
April 7, 2021, midnight N/A N/A N/A N/A N/A N/A 43.0 ppb (40) 0.2 ppb (3) 21.6 μg/m3 (20) 2.6 μg/m3 (11) 40.0
 
April 6, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) 0.2 ppb (3) 25.5 μg/m3 (24) 7.3 μg/m3 (31) 41.0
 
April 6, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) 0.2 ppb (3) 26.9 μg/m3 (25) 8.3 μg/m3 (35) 41.0
 
April 6, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) 0.2 ppb (3) 27.1 μg/m3 (26) 3.2 μg/m3 (14) 42.0
 
April 6, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) 0.2 ppb (3) 20.3 μg/m3 (19) -3.2 μg/m3 (0) 42.0
 
April 6, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) 0.2 ppb (3) 20.0 μg/m3 (19) -0.5 μg/m3 (0) 38.0
 
April 6, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) 0.2 ppb (3) 25.3 μg/m3 (24) 5.6 μg/m3 (24) 37.0
 
April 6, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) 0.2 ppb (3) 40.4 μg/m3 (38) 10.8 μg/m3 (46) 46.0
 
April 6, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) 0.2 ppb (3) 38.4 μg/m3 (36) 6.7 μg/m3 (28) 36.0
 
April 6, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) 0.3 ppb (4) 44.5 μg/m3 (42) 6.7 μg/m3 (28) 42.0
 
April 6, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) 0.4 ppb (5) 54.6 μg/m3 (51) 12.0 μg/m3 (50) 51.0
 
April 6, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) 0.4 ppb (5) 41.7 μg/m3 (39) 11.1 μg/m3 (47) 47.0
 
April 6, 2021, noon N/A N/A N/A N/A N/A N/A 21.0 ppb (20) 0.3 ppb (4) 35.8 μg/m3 (34) 8.0 μg/m3 (34) 34.0
 
April 6, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) 0.3 ppb (4) 29.1 μg/m3 (27) 4.4 μg/m3 (19) 27.0
 
April 6, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) 0.2 ppb (3) 28.8 μg/m3 (27) 5.7 μg/m3 (24) 27.0
 
April 6, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) 0.2 ppb (3) 22.9 μg/m3 (22) 4.7 μg/m3 (20) 28.0
 
April 6, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) 0.2 ppb (3) 25.8 μg/m3 (24) 6.0 μg/m3 (25) 28.0
 
April 6, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) 0.2 ppb (3) 30.2 μg/m3 (28) 5.1 μg/m3 (22) 29.0
 
April 6, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) 0.2 ppb (3) 44.4 μg/m3 (42) 6.3 μg/m3 (27) 42.0
 
April 6, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) 0.2 ppb (3) 57.9 μg/m3 (53) 12.0 μg/m3 (50) 53.0
 
April 6, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) 0.2 ppb (3) 32.1 μg/m3 (30) 5.5 μg/m3 (23) 30.0
 
April 6, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) 0.3 ppb (4) 18.4 μg/m3 (18) 4.0 μg/m3 (17) 28.0
 
April 6, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) 0.4 ppb (5) 18.2 μg/m3 (17) 6.8 μg/m3 (29) 31.0
 
April 6, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) 0.3 ppb (4) 9.9 μg/m3 (10) -0.9 μg/m3 (0) 39.0
 
April 6, 2021, midnight N/A N/A N/A N/A N/A N/A 47.0 ppb (44) 0.2 ppb (3) 15.4 μg/m3 (15) 0.6 μg/m3 (3) 44.0
 
April 5, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) 0.2 ppb (3) 16.9 μg/m3 (16) 2.9 μg/m3 (13) 44.0
 
April 5, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) 0.2 ppb (3) 17.5 μg/m3 (17) 2.1 μg/m3 (9) 46.0
 
April 5, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) 0.2 ppb (3) 15.1 μg/m3 (14) 3.6 μg/m3 (16) 50.0
 
April 5, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) 0.3 ppb (4) N/A N/A 48.0
 
April 5, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) 0.3 ppb (4) N/A N/A 43.0
 
April 5, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) 0.3 ppb (4) N/A N/A 38.0
 
April 5, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) 0.4 ppb (5) N/A N/A 30.0
 
April 5, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (5) 66.6 μg/m3 (57) 12.2 μg/m3 (52) 57.0
 
April 5, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 81.3 μg/m3 (65) 13.8 μg/m3 (55) 65.0
 
April 5, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) 42.9 μg/m3 (40) 11.3 μg/m3 (48) 48.0
 
April 5, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) 0.4 ppb (5) 28.5 μg/m3 (27) 9.3 μg/m3 (39) 39.0
 
April 5, 2021, noon N/A N/A N/A N/A N/A N/A 15.0 ppb (14) 0.3 ppb (4) 22.5 μg/m3 (21) 8.0 μg/m3 (34) 34.0
 
April 5, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) 0.2 ppb (3) 26.7 μg/m3 (25) 9.1 μg/m3 (38) 38.0
 
April 5, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) 0.3 ppb (4) 29.8 μg/m3 (28) 13.6 μg/m3 (55) 55.0
 
April 5, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) 0.4 ppb (5) 35.3 μg/m3 (33) 17.1 μg/m3 (62) 62.0
 
April 5, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) 0.7 ppb (8) 31.4 μg/m3 (30) 15.5 μg/m3 (59) 59.0
 
April 5, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) 0.6 ppb (7) 29.2 μg/m3 (28) 13.1 μg/m3 (54) 54.0
 
April 5, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) 0.7 ppb (8) 34.4 μg/m3 (32) 13.9 μg/m3 (55) 55.0
 
April 5, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) 0.8 ppb (10) 29.6 μg/m3 (28) 12.3 μg/m3 (52) 52.0
 
April 5, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) 0.6 ppb (7) 27.9 μg/m3 (26) 13.4 μg/m3 (54) 54.0
 
April 5, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) 0.4 ppb (5) 18.1 μg/m3 (17) 6.4 μg/m3 (27) 27.0
 
April 5, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) 0.3 ppb (4) 17.2 μg/m3 (16) 7.2 μg/m3 (31) 34.0
 
April 5, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) 0.2 ppb (3) 10.4 μg/m3 (10) 3.3 μg/m3 (14) 40.0
 
April 5, 2021, midnight N/A N/A N/A N/A N/A N/A 47.0 ppb (44) 0.2 ppb (3) 13.5 μg/m3 (13) 6.4 μg/m3 (27) 44.0
 
April 4, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) 0.2 ppb (3) 18.2 μg/m3 (17) 9.3 μg/m3 (39) 47.0
 
April 4, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) 0.2 ppb (3) 13.5 μg/m3 (13) 3.5 μg/m3 (15) 50.0
 
April 4, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) 0.2 ppb (3) 13.6 μg/m3 (13) 3.6 μg/m3 (16) 50.0
 
April 4, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) 0.2 ppb (3) 16.4 μg/m3 (16) 6.6 μg/m3 (28) 50.0
 
April 4, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) 0.2 ppb (3) 18.6 μg/m3 (18) 8.2 μg/m3 (35) 47.0
 
April 4, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) 0.2 ppb (3) 26.0 μg/m3 (25) 10.2 μg/m3 (43) 44.0
 
April 4, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) 0.2 ppb (3) 27.5 μg/m3 (26) 7.4 μg/m3 (31) 39.0
 
April 4, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) 0.2 ppb (3) 31.0 μg/m3 (29) 6.2 μg/m3 (26) 33.0
 
April 4, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) 0.2 ppb (3) 25.6 μg/m3 (24) 7.7 μg/m3 (33) 33.0
 
April 4, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) 0.2 ppb (3) 24.4 μg/m3 (23) 10.5 μg/m3 (44) 44.0
 
April 4, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) 0.2 ppb (3) 21.7 μg/m3 (21) 8.5 μg/m3 (36) 36.0
 
April 4, 2021, noon N/A N/A N/A N/A N/A N/A 24.0 ppb (23) 0.3 ppb (4) 23.7 μg/m3 (22) 6.6 μg/m3 (28) 28.0
 
April 4, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) 0.3 ppb (4) 34.2 μg/m3 (32) 11.6 μg/m3 (49) 49.0
 
April 4, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) 0.5 ppb (6) 37.8 μg/m3 (35) 11.0 μg/m3 (46) 46.0
 
April 4, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) 0.8 ppb (10) 40.9 μg/m3 (38) 17.9 μg/m3 (64) 64.0
 
April 4, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) 0.8 ppb (10) 34.8 μg/m3 (33) 13.7 μg/m3 (55) 55.0
 
April 4, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) 0.5 ppb (6) 33.8 μg/m3 (32) 13.2 μg/m3 (54) 54.0
 
April 4, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) 0.7 ppb (8) 45.0 μg/m3 (42) 17.5 μg/m3 (63) 63.0
 
April 4, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) 0.9 ppb (11) 38.2 μg/m3 (36) 13.5 μg/m3 (54) 54.0
 
April 4, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) 0.6 ppb (7) 26.4 μg/m3 (25) 9.1 μg/m3 (38) 38.0