AQSQID: 040131003

Site Name: Mesa - Brooks Reservoir

Location: Mesa (Swest), AZ

Reporting: True, Located: True

Current AQI: 25.0

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 8, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (5) 0.5 ppb (6) 16.0 μg/m3 (15) 5.9 μg/m3 (25) 25.0
 
April 8, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) 0.5 ppb (6) 10.0 μg/m3 (9) 3.4 μg/m3 (14) 14.0
 
April 8, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) 0.4 ppb (4) 9.0 μg/m3 (8) 2.8 μg/m3 (12) 15.0
 
April 8, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) 0.4 ppb (4) 7.0 μg/m3 (6) 2.8 μg/m3 (12) 19.0
 
April 8, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) 0.4 ppb (4) 10.0 μg/m3 (9) 3.2 μg/m3 (13) 22.0
 
April 8, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) 0.4 ppb (4) 12.0 μg/m3 (11) 3.5 μg/m3 (15) 24.0
 
April 8, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) 0.4 ppb (4) 12.0 μg/m3 (11) 4.5 μg/m3 (19) 23.0
 
April 8, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) 0.4 ppb (4) 14.0 μg/m3 (13) 4.8 μg/m3 (20) 24.0
 
April 8, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) 0.4 ppb (4) 15.0 μg/m3 (14) 3.7 μg/m3 (15) 28.0
 
April 8, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) 0.4 ppb (4) 9.0 μg/m3 (8) 2.6 μg/m3 (11) 33.0
 
April 8, 2020, midnight N/A N/A N/A N/A N/A N/A 45.0 ppb (35) 0.3 ppb (3) 10.0 μg/m3 (9) 4.2 μg/m3 (18) 35.0
 
April 7, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) 0.4 ppb (4) 8.0 μg/m3 (7) 3.8 μg/m3 (16) 35.0
 
April 7, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) 0.4 ppb (4) 7.0 μg/m3 (6) 2.5 μg/m3 (10) 35.0
 
April 7, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) 0.4 ppb (4) 10.0 μg/m3 (9) 3.7 μg/m3 (15) 35.0
 
April 7, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) 0.3 ppb (3) 8.0 μg/m3 (7) 3.1 μg/m3 (13) 36.0
 
April 7, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) 0.3 ppb (3) 7.0 μg/m3 (6) 2.1 μg/m3 (9) 37.0
 
April 7, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) 0.4 ppb (4) 6.0 μg/m3 (5) 0.6 μg/m3 (2) 35.0
 
April 7, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) 0.4 ppb (4) 9.0 μg/m3 (8) 1.2 μg/m3 (5) 32.0
 
April 7, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) 0.4 ppb (4) 18.0 μg/m3 (16) 4.0 μg/m3 (17) 26.0
 
April 7, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) 0.5 ppb (6) 23.0 μg/m3 (21) 4.2 μg/m3 (18) 21.0
 
April 7, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) 0.5 ppb (6) 23.0 μg/m3 (21) 3.2 μg/m3 (13) 21.0
 
April 7, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) 0.5 ppb (6) 12.0 μg/m3 (11) 3.3 μg/m3 (14) 14.0
 
April 7, 2020, noon N/A N/A N/A N/A N/A N/A 19.0 ppb (15) 0.4 ppb (4) 9.0 μg/m3 (8) 3.2 μg/m3 (13) 15.0
 
April 7, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) 0.4 ppb (4) 9.0 μg/m3 (8) 3.0 μg/m3 (12) 16.0
 
April 7, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) 0.4 ppb (4) 6.0 μg/m3 (5) 1.1 μg/m3 (5) 17.0
 
April 7, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) 0.4 ppb (4) 7.0 μg/m3 (6) 2.1 μg/m3 (9) 19.0
 
April 7, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) 0.4 ppb (4) 15.0 μg/m3 (14) 5.1 μg/m3 (21) 22.0
 
April 7, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) 0.4 ppb (4) 14.0 μg/m3 (13) 4.8 μg/m3 (20) 20.0
 
April 7, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) 0.4 ppb (4) 12.0 μg/m3 (11) 4.1 μg/m3 (17) 21.0
 
April 7, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) 0.4 ppb (4) 13.0 μg/m3 (12) 4.6 μg/m3 (19) 28.0
 
April 7, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) 0.4 ppb (4) 12.0 μg/m3 (11) 4.3 μg/m3 (18) 26.0
 
April 7, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) 0.4 ppb (4) 13.0 μg/m3 (12) 4.2 μg/m3 (18) 29.0
 
April 7, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) 0.4 ppb (4) 14.0 μg/m3 (13) 2.5 μg/m3 (10) 32.0
 
April 7, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) 0.4 ppb (4) 12.0 μg/m3 (11) 2.6 μg/m3 (11) 33.0
 
April 7, 2020, midnight N/A N/A N/A N/A N/A N/A 45.0 ppb (35) 0.3 ppb (3) 11.0 μg/m3 (10) 4.0 μg/m3 (17) 35.0
 
April 6, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) 0.3 ppb (3) 10.0 μg/m3 (9) 2.5 μg/m3 (10) 36.0
 
April 6, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) 0.3 ppb (3) 11.0 μg/m3 (10) 3.8 μg/m3 (16) 38.0
 
April 6, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) 0.3 ppb (3) 8.0 μg/m3 (7) 1.3 μg/m3 (5) 38.0
 
April 6, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) 0.3 ppb (3) 11.0 μg/m3 (10) 3.2 μg/m3 (13) 37.0
 
April 6, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) 0.3 ppb (3) 14.0 μg/m3 (13) 4.0 μg/m3 (17) 36.0
 
April 6, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) 0.4 ppb (4) 11.0 μg/m3 (10) 2.7 μg/m3 (11) 36.0
 
April 6, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) 0.4 ppb (4) N/A N/A 32.0
 
April 6, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) 0.4 ppb (4) N/A N/A 29.0
 
April 6, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 23.0 μg/m3 (21) 4.5 μg/m3 (19) 23.0
 
April 6, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) 24.0 μg/m3 (22) 6.3 μg/m3 (26) 26.0
 
April 6, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) 0.5 ppb (6) 28.0 μg/m3 (25) 6.5 μg/m3 (27) 27.0
 
April 6, 2020, noon N/A N/A N/A N/A N/A N/A 11.0 ppb (8) 0.4 ppb (4) 24.0 μg/m3 (22) 5.9 μg/m3 (25) 25.0
 
April 6, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) 0.4 ppb (4) 14.0 μg/m3 (13) 4.1 μg/m3 (17) 17.0
 
April 6, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) 0.4 ppb (4) 10.0 μg/m3 (9) 3.9 μg/m3 (16) 17.0
 
April 6, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) 0.4 ppb (4) 10.0 μg/m3 (9) 3.4 μg/m3 (14) 25.0
 
April 6, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) 0.4 ppb (4) 11.0 μg/m3 (10) 4.1 μg/m3 (17) 30.0
 
April 6, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) 0.4 ppb (4) 15.0 μg/m3 (14) 6.1 μg/m3 (25) 25.0
 
April 6, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) 0.6 ppb (7) 20.0 μg/m3 (18) 7.8 μg/m3 (32) 32.0
 
April 6, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) 0.5 ppb (6) 19.0 μg/m3 (17) 6.9 μg/m3 (29) 29.0
 
April 6, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) 0.5 ppb (6) 15.0 μg/m3 (14) 6.5 μg/m3 (27) 27.0
 
April 6, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) 0.4 ppb (4) 13.0 μg/m3 (12) 5.2 μg/m3 (22) 29.0
 
April 6, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) 0.4 ppb (4) 11.0 μg/m3 (10) 4.3 μg/m3 (18) 31.0
 
April 6, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) 0.4 ppb (4) 8.0 μg/m3 (7) 2.7 μg/m3 (11) 36.0
 
April 6, 2020, midnight N/A N/A N/A N/A N/A N/A 49.0 ppb (38) 0.3 ppb (3) 9.0 μg/m3 (8) 3.6 μg/m3 (15) 38.0
 
April 5, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) 0.3 ppb (3) 12.0 μg/m3 (11) 4.8 μg/m3 (20) 38.0
 
April 5, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) 0.3 ppb (3) 9.0 μg/m3 (8) 3.0 μg/m3 (12) 38.0
 
April 5, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) 0.3 ppb (3) 9.0 μg/m3 (8) 3.3 μg/m3 (14) 37.0
 
April 5, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) 0.3 ppb (3) 5.0 μg/m3 (5) 0.3 μg/m3 (1) 36.0
 
April 5, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) 0.3 ppb (3) 6.0 μg/m3 (5) 2.4 μg/m3 (10) 38.0
 
April 5, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) 0.3 ppb (3) 6.0 μg/m3 (5) 2.4 μg/m3 (10) 36.0
 
April 5, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) 0.4 ppb (4) 7.0 μg/m3 (6) 2.4 μg/m3 (10) 35.0
 
April 5, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) 0.4 ppb (4) 7.0 μg/m3 (6) 1.5 μg/m3 (6) 32.0
 
April 5, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) 0.4 ppb (4) 12.0 μg/m3 (11) 4.4 μg/m3 (18) 28.0
 
April 5, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) 0.4 ppb (4) 11.0 μg/m3 (10) 4.2 μg/m3 (18) 23.0
 
April 5, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) 0.4 ppb (4) 15.0 μg/m3 (14) 4.3 μg/m3 (18) 22.0
 
April 5, 2020, noon N/A N/A N/A N/A N/A N/A 30.0 ppb (23) 0.4 ppb (4) 13.0 μg/m3 (12) 5.3 μg/m3 (22) 23.0
 
April 5, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) 0.4 ppb (4) 12.0 μg/m3 (11) 4.0 μg/m3 (17) 22.0
 
April 5, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) 0.4 ppb (4) 8.0 μg/m3 (7) 2.4 μg/m3 (10) 26.0
 
April 5, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) 0.4 ppb (4) 9.0 μg/m3 (8) 2.6 μg/m3 (11) 30.0
 
April 5, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) 0.4 ppb (4) 13.0 μg/m3 (12) 4.4 μg/m3 (18) 28.0
 
April 5, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) 0.5 ppb (6) 20.0 μg/m3 (18) 10.0 μg/m3 (42) 42.0
 
April 5, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) 0.6 ppb (7) 17.0 μg/m3 (15) 8.3 μg/m3 (35) 35.0
 
April 5, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) 0.5 ppb (6) 16.0 μg/m3 (15) 7.1 μg/m3 (30) 30.0
 
April 5, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) 0.4 ppb (4) 11.0 μg/m3 (10) 4.2 μg/m3 (18) 30.0
 
April 5, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) 0.4 ppb (4) 10.0 μg/m3 (9) 4.2 μg/m3 (18) 34.0
 
April 5, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) 0.4 ppb (4) 9.0 μg/m3 (8) 3.7 μg/m3 (15) 35.0
 
April 5, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) 0.4 ppb (4) 11.0 μg/m3 (10) 4.1 μg/m3 (17) 37.0
 
April 5, 2020, midnight N/A N/A N/A N/A N/A N/A 52.0 ppb (40) 0.3 ppb (3) 10.0 μg/m3 (9) 4.2 μg/m3 (18) 40.0
 
April 4, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) 0.3 ppb (3) 8.0 μg/m3 (7) 3.2 μg/m3 (13) 39.0
 
April 4, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) 0.3 ppb (3) 10.0 μg/m3 (9) 2.6 μg/m3 (11) 41.0
 
April 4, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) 0.3 ppb (3) 12.0 μg/m3 (11) 3.2 μg/m3 (13) 42.0
 
April 4, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) 0.3 ppb (3) 15.0 μg/m3 (14) 5.1 μg/m3 (21) 42.0
 
April 4, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) 0.3 ppb (3) 10.0 μg/m3 (9) 3.0 μg/m3 (12) 42.0
 
April 4, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) 0.4 ppb (4) 9.0 μg/m3 (8) 2.9 μg/m3 (12) 41.0
 
April 4, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) 0.4 ppb (4) 11.0 μg/m3 (10) 4.0 μg/m3 (17) 35.0
 
April 4, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) 0.4 ppb (4) 13.0 μg/m3 (12) 4.1 μg/m3 (17) 28.0
 
April 4, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) 0.4 ppb (4) 16.0 μg/m3 (15) 5.7 μg/m3 (24) 24.0
 
April 4, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) 0.4 ppb (4) 16.0 μg/m3 (15) 5.2 μg/m3 (22) 22.0
 
April 4, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) 0.4 ppb (4) 14.0 μg/m3 (13) 5.5 μg/m3 (23) 23.0
 
April 4, 2020, noon N/A N/A N/A N/A N/A N/A 22.0 ppb (17) 0.4 ppb (4) 13.0 μg/m3 (12) 3.8 μg/m3 (16) 17.0
 
April 4, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) 0.4 ppb (4) 17.0 μg/m3 (15) 6.6 μg/m3 (28) 28.0
 
April 4, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) 0.4 ppb (4) 18.0 μg/m3 (16) 7.9 μg/m3 (33) 33.0
 
April 4, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) 0.5 ppb (6) 19.0 μg/m3 (17) 8.4 μg/m3 (35) 35.0
 
April 4, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) 0.5 ppb (6) 17.0 μg/m3 (15) 8.5 μg/m3 (35) 35.0
 
April 4, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) 0.5 ppb (6) 16.0 μg/m3 (15) 6.4 μg/m3 (27) 27.0
 
April 4, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) 0.5 ppb (6) 18.0 μg/m3 (16) 6.5 μg/m3 (27) 27.0
 
April 4, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) 0.5 ppb (6) 19.0 μg/m3 (17) 4.7 μg/m3 (20) 24.0
 
April 4, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) 0.5 ppb (6) 14.0 μg/m3 (13) 4.7 μg/m3 (20) 23.0
 
April 4, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) 0.5 ppb (6) 9.0 μg/m3 (8) 3.3 μg/m3 (14) 27.0
 
April 4, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) 0.4 ppb (4) 9.0 μg/m3 (8) 2.9 μg/m3 (12) 31.0
 
April 4, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) 0.4 ppb (4) 11.0 μg/m3 (10) 5.3 μg/m3 (22) 35.0
 
April 4, 2020, midnight N/A N/A N/A N/A N/A N/A 53.0 ppb (41) 0.4 ppb (4) 8.0 μg/m3 (7) 2.5 μg/m3 (10) 41.0
 
April 3, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) 0.4 ppb (4) 11.0 μg/m3 (10) 2.4 μg/m3 (10) 41.0
 
April 3, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) 0.4 ppb (4) 11.0 μg/m3 (10) 2.7 μg/m3 (11) 42.0
 
April 3, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) 0.4 ppb (4) 9.0 μg/m3 (8) 2.2 μg/m3 (9) 42.0
 
April 3, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) 0.4 ppb (4) 12.0 μg/m3 (11) 3.9 μg/m3 (16) 41.0
 
April 3, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) 0.4 ppb (4) 13.0 μg/m3 (12) 5.0 μg/m3 (21) 42.0
 
April 3, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) 0.4 ppb (4) 12.0 μg/m3 (11) 3.1 μg/m3 (13) 41.0
 
April 3, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) 0.4 ppb (4) 18.0 μg/m3 (16) 4.2 μg/m3 (18) 34.0
 
April 3, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) 0.4 ppb (4) 25.0 μg/m3 (23) 6.3 μg/m3 (26) 28.0
 
April 3, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) 0.5 ppb (6) 23.0 μg/m3 (21) 8.0 μg/m3 (33) 33.0
 
April 3, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) 0.6 ppb (7) 15.0 μg/m3 (14) 5.3 μg/m3 (22) 22.0
 
April 3, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) 0.5 ppb (6) 12.0 μg/m3 (11) 3.0 μg/m3 (12) 12.0
 
April 3, 2020, noon N/A N/A N/A N/A N/A N/A 13.0 ppb (10) 0.4 ppb (4) 16.0 μg/m3 (15) 5.6 μg/m3 (23) 23.0
 
April 3, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) 0.4 ppb (4) 15.0 μg/m3 (14) 5.1 μg/m3 (21) 21.0
 
April 3, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) 0.4 ppb (4) 17.0 μg/m3 (15) 4.8 μg/m3 (20) 20.0
 
April 3, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) 0.4 ppb (4) 18.0 μg/m3 (16) 7.3 μg/m3 (30) 30.0
 
April 3, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) 0.5 ppb (6) 13.0 μg/m3 (12) 5.0 μg/m3 (21) 21.0
 
April 3, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) 0.4 ppb (4) 12.0 μg/m3 (11) 4.5 μg/m3 (19) 19.0
 
April 3, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) 0.4 ppb (4) 12.0 μg/m3 (11) 4.8 μg/m3 (20) 25.0
 
April 3, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) 0.4 ppb (4) 13.0 μg/m3 (12) 6.3 μg/m3 (26) 27.0
 
April 3, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) 0.5 ppb (6) 12.0 μg/m3 (11) 4.7 μg/m3 (20) 21.0
 
April 3, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) 0.5 ppb (6) 11.0 μg/m3 (10) 3.3 μg/m3 (14) 27.0
 
April 3, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) 0.4 ppb (4) 9.0 μg/m3 (8) 3.6 μg/m3 (15) 31.0
 
April 3, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) 0.4 ppb (4) 6.0 μg/m3 (5) 1.6 μg/m3 (7) 35.0
 
April 3, 2020, midnight N/A N/A N/A N/A N/A N/A 48.0 ppb (37) 0.4 ppb (4) 9.0 μg/m3 (8) 1.7 μg/m3 (7) 37.0
 
April 2, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) 0.4 ppb (4) 10.0 μg/m3 (9) 2.9 μg/m3 (12) 37.0
 
April 2, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) 0.4 ppb (4) 8.0 μg/m3 (7) 2.0 μg/m3 (8) 37.0
 
April 2, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) 0.3 ppb (3) N/A N/A 38.0
 
April 2, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) 0.4 ppb (4) N/A N/A 38.0
 
April 2, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A N/A 40.0
 
April 2, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A N/A 35.0
 
April 2, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (4) 15.0 μg/m3 (14) 4.3 μg/m3 (18) 18.0
 
April 2, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (4) 24.0 μg/m3 (22) 5.7 μg/m3 (24) 24.0
 
April 2, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) 30.0 μg/m3 (27) 6.1 μg/m3 (25) 27.0
 
April 2, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) 0.5 ppb (6) 24.0 μg/m3 (22) 5.7 μg/m3 (24) 24.0
 
April 2, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) 0.5 ppb (6) 22.0 μg/m3 (20) 6.3 μg/m3 (26) 26.0
 
April 2, 2020, noon N/A N/A N/A N/A N/A N/A 28.0 ppb (22) 0.4 ppb (4) 14.0 μg/m3 (13) 5.8 μg/m3 (24) 24.0
 
April 2, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) 0.4 ppb (4) 11.0 μg/m3 (10) 4.5 μg/m3 (19) 26.0
 
April 2, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) 0.4 ppb (4) 17.0 μg/m3 (15) 6.4 μg/m3 (27) 27.0
 
April 2, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) 0.4 ppb (4) 20.0 μg/m3 (18) 8.4 μg/m3 (35) 35.0
 
April 2, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) 0.5 ppb (6) 22.0 μg/m3 (20) 9.5 μg/m3 (40) 40.0
 
April 2, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) 0.5 ppb (6) 21.0 μg/m3 (19) 9.7 μg/m3 (40) 40.0
 
April 2, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) 0.6 ppb (7) 25.0 μg/m3 (23) 10.5 μg/m3 (44) 44.0
 
April 2, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) 0.6 ppb (7) 22.0 μg/m3 (20) 8.4 μg/m3 (35) 35.0
 
April 2, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) 0.6 ppb (7) 13.0 μg/m3 (12) 4.7 μg/m3 (20) 20.0
 
April 2, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) 0.5 ppb (6) 14.0 μg/m3 (13) 5.4 μg/m3 (23) 23.0
 
April 2, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) 0.5 ppb (6) 10.0 μg/m3 (9) 3.5 μg/m3 (15) 32.0
 
April 2, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) 0.4 ppb (4) 6.0 μg/m3 (5) 1.9 μg/m3 (8) 34.0
 
April 2, 2020, midnight N/A N/A N/A N/A N/A N/A 50.0 ppb (38) 0.3 ppb (3) 8.0 μg/m3 (7) 3.1 μg/m3 (13) 38.0
 
April 1, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) 0.4 ppb (4) 11.0 μg/m3 (10) 4.3 μg/m3 (18) 43.0
 
April 1, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) 0.4 ppb (4) 12.0 μg/m3 (11) 3.9 μg/m3 (16) 44.0
 
April 1, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) 0.4 ppb (4) 11.0 μg/m3 (10) 3.9 μg/m3 (16) 42.0
 
April 1, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) 0.4 ppb (4) 12.0 μg/m3 (11) 3.3 μg/m3 (14) 45.0
 
April 1, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) 0.4 ppb (4) 16.0 μg/m3 (15) 5.7 μg/m3 (24) 42.0
 
April 1, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) 0.4 ppb (4) 18.0 μg/m3 (16) 7.0 μg/m3 (29) 38.0
 
April 1, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) 0.4 ppb (4) 22.0 μg/m3 (20) 6.7 μg/m3 (28) 32.0
 
April 1, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) 0.5 ppb (6) 31.0 μg/m3 (28) 9.5 μg/m3 (40) 40.0
 
April 1, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) 0.6 ppb (7) 37.0 μg/m3 (34) 10.9 μg/m3 (45) 45.0
 
April 1, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) 0.6 ppb (7) 39.0 μg/m3 (35) 12.9 μg/m3 (52) 52.0
 
April 1, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) 0.5 ppb (6) 35.0 μg/m3 (32) 12.5 μg/m3 (51) 51.0
 
April 1, 2020, noon N/A N/A N/A N/A N/A N/A 15.0 ppb (12) 0.5 ppb (6) 23.0 μg/m3 (21) 8.7 μg/m3 (36) 36.0
 
April 1, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) 0.4 ppb (4) 18.0 μg/m3 (16) 6.2 μg/m3 (26) 26.0