AQSQID: 260490021

Site Name: Flint

Location: City of Flint, MI

Reporting: True, Located: True

Current AQI: 41.0

City of Flint MI, US: 43.0289, -83.669403

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 23, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 9.8 μg/m3 (41) 41.0
 
May 23, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 9.1 μg/m3 (38) 38.0
 
May 23, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.1 μg/m3 (30) 30.0
 
May 23, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 7.0 μg/m3 (29) 29.0
 
May 23, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 5.1 μg/m3 (21) 32.0
 
May 23, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 7.8 μg/m3 (32) 32.0
 
May 23, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 10.8 μg/m3 (45) 45.0
 
May 23, 2019, midnight N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 5.3 μg/m3 (22) 36.0
 
May 22, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 4.1 μg/m3 (17) 37.0
 
May 22, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 10.6 μg/m3 (44) 44.0
 
May 22, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 12.9 μg/m3 (52) 52.0
 
May 22, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 16.8 μg/m3 (60) 60.0
 
May 22, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 10.4 μg/m3 (43) 43.0
 
May 22, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 5.3 μg/m3 (22) 26.0
 
May 22, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A N/A 25.0
 
May 22, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A N/A 27.0
 
May 22, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 7.9 μg/m3 (33) 33.0
 
May 22, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 7.0 μg/m3 (29) 29.0
 
May 22, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 6.0 μg/m3 (25) 25.0
 
May 22, 2019, noon N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 5.0 μg/m3 (21) 27.0
 
May 22, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 5.0 μg/m3 (21) 29.0
 
May 22, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 6.9 μg/m3 (29) 29.0
 
May 22, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 6.0 μg/m3 (25) 25.0
 
May 22, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 7.0 μg/m3 (29) 29.0
 
May 22, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 2.1 μg/m3 (9) 21.0
 
May 22, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 3.0 μg/m3 (12) 23.0
 
May 22, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
May 22, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 3.0 μg/m3 (12) 24.0
 
May 22, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 2.0 μg/m3 (8) 24.0
 
May 22, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 3.0 μg/m3 (12) 25.0
 
May 22, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 3.0 μg/m3 (12) 27.0
 
May 22, 2019, midnight N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 2.0 μg/m3 (8) 31.0
 
May 21, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 1.0 μg/m3 (4) 33.0
 
May 21, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 1.0 μg/m3 (4) 32.0
 
May 21, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 2.0 μg/m3 (8) 31.0
 
May 21, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 3.0 μg/m3 (12) 30.0
 
May 21, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 4.9 μg/m3 (20) 28.0
 
May 21, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 3.1 μg/m3 (13) 27.0
 
May 21, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 2.0 μg/m3 (8) 25.0
 
May 21, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 4.9 μg/m3 (20) 25.0
 
May 21, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 5.0 μg/m3 (21) 23.0
 
May 21, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 1.1 μg/m3 (5) 22.0
 
May 21, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 3.9 μg/m3 (16) 18.0
 
May 21, 2019, noon N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A N/A 17.6 μg/m3 (62) 62.0
 
May 21, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A N/A 3.4 μg/m3 (14) 14.0
 
May 21, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 3.0 μg/m3 (12) 12.0
 
May 21, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 2.0 μg/m3 (8) 8.0
 
May 21, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 2.0 μg/m3 (8) 8.0
 
May 21, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A N/A 4.9 μg/m3 (20) 20.0
 
May 21, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A N/A 7.9 μg/m3 (33) 33.0
 
May 21, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.9 μg/m3 (45) 45.0
 
May 21, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 13.9 μg/m3 (54) 54.0
 
May 21, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 6.2 μg/m3 (26) 26.0
 
May 21, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A N/A 3.1 μg/m3 (13) 13.0
 
May 21, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 1.1 μg/m3 (5) 12.0
 
May 21, 2019, midnight N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 2.9 μg/m3 (12) 16.0
 
May 20, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 3.0 μg/m3 (12) 16.0
 
May 20, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 5.9 μg/m3 (25) 25.0
 
May 20, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 7.0 μg/m3 (29) 29.0
 
May 20, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 3.1 μg/m3 (13) 16.0
 
May 20, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 0.1 μg/m3 (0) 16.0
 
May 20, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A -1.0 μg/m3 (0) 16.0
 
May 20, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A -2.0 μg/m3 (0) 17.0
 
May 20, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A -0.1 μg/m3 (0) 17.0
 
May 20, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 1.9 μg/m3 (8) 17.0
 
May 20, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 1.0 μg/m3 (4) 17.0
 
May 20, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A -2.9 μg/m3 (0) 16.0
 
May 20, 2019, noon N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A -0.1 μg/m3 (0) 15.0
 
May 20, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 1.0 μg/m3 (4) 16.0
 
May 20, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 2.0 μg/m3 (8) 16.0
 
May 17, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 11.0 μg/m3 (46) 46.0
 
May 17, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 6.1 μg/m3 (25) 25.0
 
May 17, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
May 17, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 8.0 μg/m3 (33) 33.0
 
May 17, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 7.0 μg/m3 (29) 29.0
 
May 17, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 8.0 μg/m3 (33) 33.0
 
May 17, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 2.2 μg/m3 (9) 35.0
 
May 17, 2019, midnight N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 3.9 μg/m3 (16) 38.0
 
May 16, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 5.9 μg/m3 (25) 41.0
 
May 16, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 6.0 μg/m3 (25) 42.0
 
May 16, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 6.0 μg/m3 (25) 42.0
 
May 16, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A N/A 5.0 μg/m3 (21) 43.0
 
May 16, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A N/A 6.0 μg/m3 (25) 43.0
 
May 16, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 15.7 μg/m3 (58) 58.0
 
May 16, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 10.2 μg/m3 (42) 42.0
 
May 16, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 8.1 μg/m3 (34) 38.0
 
May 16, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 6.1 μg/m3 (25) 33.0
 
May 16, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 4.1 μg/m3 (17) 32.0
 
May 16, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 5.9 μg/m3 (25) 27.0
 
May 16, 2019, noon N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 11.8 μg/m3 (49) 49.0
 
May 16, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 15.9 μg/m3 (58) 58.0
 
May 16, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) N/A N/A 12.1 μg/m3 (50) 50.0
 
May 16, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) N/A N/A 13.0 μg/m3 (52) 52.0
 
May 16, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A N/A 14.9 μg/m3 (56) 56.0
 
May 16, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (5) N/A N/A 8.2 μg/m3 (34) 34.0
 
May 16, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A N/A 6.1 μg/m3 (25) 25.0
 
May 16, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.9 μg/m3 (37) 37.0
 
May 16, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 5.1 μg/m3 (21) 21.0
 
May 16, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 5.0 μg/m3 (21) 28.0
 
May 16, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 6.9 μg/m3 (29) 36.0
 
May 16, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 6.0 μg/m3 (25) 38.0
 
May 16, 2019, midnight N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 4.1 μg/m3 (17) 39.0
 
May 15, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 2.1 μg/m3 (9) 42.0
 
May 15, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 3.9 μg/m3 (16) 41.0
 
May 15, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 5.9 μg/m3 (25) 41.0
 
May 15, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 6.0 μg/m3 (25) 39.0
 
May 15, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 3.1 μg/m3 (13) 36.0
 
May 15, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 4.9 μg/m3 (20) 41.0
 
May 15, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 6.0 μg/m3 (25) 42.0
 
May 15, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 10.9 μg/m3 (45) 45.0
 
May 15, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 3.2 μg/m3 (13) 35.0
 
May 15, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 4.9 μg/m3 (20) 33.0
 
May 15, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 5.0 μg/m3 (21) 32.0
 
May 15, 2019, noon N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 7.9 μg/m3 (33) 33.0
 
May 15, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A N/A 7.0 μg/m3 (29) 29.0
 
May 15, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A N/A 5.1 μg/m3 (21) 21.0
 
May 15, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 6.0 μg/m3 (25) 25.0
 
May 15, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 6.0 μg/m3 (25) 25.0
 
May 15, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 4.1 μg/m3 (17) 22.0
 
May 15, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 2.1 μg/m3 (9) 28.0
 
May 15, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.9 μg/m3 (16) 16.0
 
May 15, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 3.0 μg/m3 (12) 30.0
 
May 15, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 3.0 μg/m3 (12) 30.0
 
May 15, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 3.0 μg/m3 (12) 29.0
 
May 15, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 3.0 μg/m3 (12) 27.0
 
May 15, 2019, midnight N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 3.0 μg/m3 (12) 34.0
 
May 14, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 3.0 μg/m3 (12) 36.0
 
May 14, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 4.0 μg/m3 (17) 37.0
 
May 14, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 3.0 μg/m3 (12) 37.0
 
May 14, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A -0.9 μg/m3 (0) 36.0
 
May 14, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 1.9 μg/m3 (8) 35.0
 
May 14, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 3.0 μg/m3 (12) 34.0
 
May 14, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 3.0 μg/m3 (12) 34.0
 
May 14, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 5.9 μg/m3 (25) 32.0
 
May 14, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 5.0 μg/m3 (21) 29.0
 
May 14, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 5.0 μg/m3 (21) 26.0
 
May 14, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 6.0 μg/m3 (25) 25.0
 
May 14, 2019, noon N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 7.9 μg/m3 (33) 33.0
 
May 13, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 0.9 μg/m3 (4) 27.0
 
May 13, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 2.0 μg/m3 (8) 27.0
 
May 13, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 0.1 μg/m3 (0) 28.0
 
May 13, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.9 μg/m3 (20) 20.0
 
May 13, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 6.0 μg/m3 (25) 28.0
 
May 13, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 0.2 μg/m3 (1) 25.0
 
May 13, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 2.9 μg/m3 (12) 25.0
 
May 13, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 4.9 μg/m3 (20) 27.0
 
May 13, 2019, midnight N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 2.1 μg/m3 (9) 28.0
 
May 12, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 3.0 μg/m3 (12) 29.0
 
May 12, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 1.1 μg/m3 (5) 28.0
 
May 12, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 0.0 μg/m3 (0) 30.0
 
May 12, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 1.9 μg/m3 (8) 30.0
 
May 12, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 2.0 μg/m3 (8) 29.0
 
May 12, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 3.0 μg/m3 (12) 28.0
 
May 12, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 4.0 μg/m3 (17) 28.0
 
May 12, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 5.0 μg/m3 (21) 28.0
 
May 12, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 2.1 μg/m3 (9) 27.0
 
May 12, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 2.0 μg/m3 (8) 26.0
 
May 12, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 1.0 μg/m3 (4) 26.0
 
May 12, 2019, noon N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 0.0 μg/m3 (0) 25.0
 
May 12, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 3.9 μg/m3 (16) 23.0
 
May 12, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 6.9 μg/m3 (29) 29.0
 
May 12, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 3.1 μg/m3 (13) 21.0
 
May 12, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 3.0 μg/m3 (12) 22.0
 
May 12, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 0.1 μg/m3 (0) 22.0
 
May 12, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 1.9 μg/m3 (8) 23.0
 
May 12, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.9 μg/m3 (29) 29.0
 
May 12, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 8.9 μg/m3 (37) 37.0
 
May 12, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 5.1 μg/m3 (21) 28.0