AQSQID: 261630001

Site Name: Allen Park

Location: Taylor, MI

Reporting: True, Located: True

Current AQI: 56.0

Taylor MI, US: 42.2283, -83.2092

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 21, 2019, 10 a.m. N/A N/A 24.5 ppb (23) N/A N/A 0.0 ppb (0) 16.0 ppb (12) 0.0 ppb (0) N/A 15.0 μg/m3 (56) 56.0
 
March 21, 2019, 9 a.m. N/A N/A 12.6 ppb (12) N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) N/A 12.2 μg/m3 (50) 50.0
 
March 21, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.0 ppb (0) N/A 9.8 μg/m3 (41) 41.0
 
March 21, 2019, 7 a.m. N/A N/A 6.9 ppb (6) N/A N/A N/A 35.0 ppb (27) N/A N/A 10.8 μg/m3 (45) 45.0
 
March 21, 2019, 6 a.m. N/A N/A 5.6 ppb (5) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.0 ppb (0) N/A 9.9 μg/m3 (41) 41.0
 
March 21, 2019, 5 a.m. N/A N/A 4.3 ppb (4) N/A N/A 0.0 ppb (0) 42.0 ppb (32) 0.0 ppb (0) N/A 6.3 μg/m3 (26) 32.0
 
March 21, 2019, 4 a.m. N/A N/A 4.8 ppb (4) N/A N/A 0.0 ppb (0) 42.0 ppb (32) 0.0 ppb (0) N/A 5.9 μg/m3 (25) 32.0
 
March 21, 2019, 3 a.m. N/A N/A 6.0 ppb (6) N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.0 ppb (0) N/A 7.1 μg/m3 (30) 31.0
 
March 21, 2019, 2 a.m. N/A N/A 7.2 ppb (7) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.0 ppb (0) N/A 11.1 μg/m3 (46) 46.0
 
March 21, 2019, 1 a.m. N/A N/A 8.9 ppb (8) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.0 ppb (0) N/A 11.4 μg/m3 (48) 48.0
 
March 21, 2019, midnight N/A N/A 9.8 ppb (9) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.0 ppb (0) N/A 12.3 μg/m3 (51) 51.0
 
March 20, 2019, 11 p.m. N/A N/A 7.9 ppb (7) N/A N/A 0.0 ppb (0) 42.0 ppb (32) 0.0 ppb (0) N/A 10.2 μg/m3 (42) 42.0
 
March 20, 2019, 10 p.m. N/A N/A 11.0 ppb (10) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.0 ppb (0) N/A 6.2 μg/m3 (26) 30.0
 
March 20, 2019, 9 p.m. N/A N/A 13.1 ppb (12) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.0 ppb (0) N/A 10.8 μg/m3 (45) 45.0
 
March 20, 2019, 8 p.m. N/A N/A 8.1 ppb (8) N/A N/A 0.0 ppb (0) 44.0 ppb (34) 0.0 ppb (0) N/A 4.7 μg/m3 (20) 34.0
 
March 20, 2019, 7 p.m. N/A N/A 11.7 ppb (11) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.0 ppb (0) N/A 9.2 μg/m3 (38) 38.0
 
March 20, 2019, 6 p.m. N/A N/A 10.5 ppb (10) N/A N/A 1.0 ppb (1) 40.0 ppb (31) 0.0 ppb (0) N/A 14.1 μg/m3 (54) 54.0
 
March 20, 2019, 5 p.m. N/A N/A 11.8 ppb (11) N/A N/A 1.0 ppb (1) 38.0 ppb (29) 0.0 ppb (0) N/A 8.3 μg/m3 (35) 35.0
 
March 20, 2019, 4 p.m. N/A N/A 12.0 ppb (11) N/A N/A 1.0 ppb (1) 38.0 ppb (29) 0.0 ppb (0) N/A 9.1 μg/m3 (38) 38.0
 
March 20, 2019, 3 p.m. N/A N/A 13.0 ppb (12) N/A N/A 1.0 ppb (1) 38.0 ppb (29) 0.0 ppb (0) N/A 7.1 μg/m3 (30) 30.0
 
March 20, 2019, 2 p.m. N/A N/A 19.2 ppb (18) N/A N/A 1.0 ppb (1) 31.0 ppb (24) 0.0 ppb (0) N/A 8.2 μg/m3 (34) 34.0
 
March 20, 2019, 1 p.m. N/A N/A 35.5 ppb (33) N/A N/A 1.0 ppb (1) 17.0 ppb (13) 0.0 ppb (0) N/A 13.6 μg/m3 (53) 53.0
 
March 20, 2019, noon N/A N/A 51.6 ppb (48) N/A N/A 0.0 ppb (0) 4.0 ppb (3) 0.0 ppb (0) N/A 17.6 μg/m3 (62) 62.0
 
March 20, 2019, 11 a.m. N/A N/A 47.7 ppb (44) N/A N/A 0.0 ppb (0) 1.0 ppb (1) 0.0 ppb (0) N/A 18.4 μg/m3 (64) 64.0
 
March 20, 2019, 10 a.m. N/A N/A 39.0 ppb (36) N/A N/A 0.0 ppb (0) 6.0 ppb (5) 0.0 ppb (0) N/A 12.9 μg/m3 (52) 52.0
 
March 20, 2019, 9 a.m. N/A N/A 23.9 ppb (22) N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) N/A 12.0 μg/m3 (50) 50.0
 
March 20, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 17.0 ppb (13) 0.0 ppb (0) N/A 11.7 μg/m3 (49) 49.0
 
March 20, 2019, 7 a.m. N/A N/A 32.6 ppb (30) N/A N/A N/A 13.0 ppb (10) N/A N/A 11.6 μg/m3 (48) 48.0
 
March 20, 2019, 6 a.m. N/A N/A 36.5 ppb (34) N/A N/A 0.0 ppb (0) 7.0 ppb (5) 0.0 ppb (0) N/A 13.3 μg/m3 (53) 53.0
 
March 20, 2019, 5 a.m. N/A N/A 36.4 ppb (34) N/A N/A 0.0 ppb (0) 8.0 ppb (6) 0.0 ppb (0) N/A 12.6 μg/m3 (51) 51.0
 
March 20, 2019, 4 a.m. N/A N/A 30.1 ppb (28) N/A N/A 0.0 ppb (0) 14.0 ppb (11) 0.0 ppb (0) N/A 12.4 μg/m3 (51) 51.0
 
March 20, 2019, 3 a.m. N/A N/A 18.8 ppb (17) N/A N/A 0.0 ppb (0) 24.0 ppb (18) 0.0 ppb (0) N/A 11.3 μg/m3 (47) 47.0
 
March 20, 2019, 2 a.m. N/A N/A 23.3 ppb (22) N/A N/A 0.0 ppb (0) 21.0 ppb (16) 0.0 ppb (0) N/A 12.2 μg/m3 (50) 50.0
 
March 20, 2019, 1 a.m. N/A N/A 20.8 ppb (19) N/A N/A 0.0 ppb (0) 25.0 ppb (19) 0.0 ppb (0) N/A 12.9 μg/m3 (52) 52.0
 
March 20, 2019, midnight N/A N/A 18.3 ppb (17) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.0 ppb (0) N/A 11.3 μg/m3 (47) 47.0
 
March 19, 2019, 11 p.m. N/A N/A 8.1 ppb (8) N/A N/A 0.0 ppb (0) 41.0 ppb (32) 0.0 ppb (0) N/A 9.4 μg/m3 (39) 39.0
 
March 19, 2019, 10 p.m. N/A N/A 8.2 ppb (8) N/A N/A 1.0 ppb (1) 42.0 ppb (32) 0.0 ppb (0) N/A 8.7 μg/m3 (36) 36.0
 
March 19, 2019, 9 p.m. N/A N/A 8.1 ppb (8) N/A N/A 0.0 ppb (0) 43.0 ppb (33) 0.0 ppb (0) N/A 9.6 μg/m3 (40) 40.0
 
March 19, 2019, 8 p.m. N/A N/A 8.7 ppb (8) N/A N/A 0.0 ppb (0) 44.0 ppb (34) 0.0 ppb (0) N/A 7.2 μg/m3 (30) 34.0
 
March 19, 2019, 7 p.m. N/A N/A 8.4 ppb (8) N/A N/A 0.0 ppb (0) 43.0 ppb (33) 0.0 ppb (0) N/A 6.5 μg/m3 (27) 33.0
 
March 19, 2019, 6 p.m. N/A N/A 10.2 ppb (9) N/A N/A 1.0 ppb (1) 42.0 ppb (32) 0.0 ppb (0) N/A 6.1 μg/m3 (25) 32.0
 
March 19, 2019, 5 p.m. N/A N/A 11.8 ppb (11) N/A N/A 1.0 ppb (1) 41.0 ppb (32) 0.0 ppb (0) N/A 10.7 μg/m3 (45) 45.0
 
March 19, 2019, 4 p.m. N/A N/A 16.0 ppb (15) N/A N/A 1.0 ppb (1) 39.0 ppb (30) 0.0 ppb (0) N/A 7.4 μg/m3 (31) 31.0
 
March 19, 2019, 3 p.m. N/A N/A 13.7 ppb (13) N/A N/A 1.0 ppb (1) 41.0 ppb (32) 0.0 ppb (0) N/A 11.4 μg/m3 (48) 48.0
 
March 19, 2019, 2 p.m. N/A N/A 34.8 ppb (32) N/A N/A 1.0 ppb (1) 30.0 ppb (23) 0.0 ppb (0) N/A 15.4 μg/m3 (57) 57.0
 
March 19, 2019, 1 p.m. N/A N/A 84.7 ppb (83) N/A N/A 1.0 ppb (1) 10.0 ppb (8) 0.0 ppb (0) N/A 20.2 μg/m3 (67) 83.0
 
March 19, 2019, noon N/A N/A 126.0 ppb (105) N/A N/A 1.0 ppb (1) 2.0 ppb (2) 0.0 ppb (0) N/A 22.7 μg/m3 (73) 105.0
 
March 19, 2019, 11 a.m. N/A N/A 94.1 ppb (93) N/A N/A 1.0 ppb (1) 1.0 ppb (1) 0.0 ppb (0) N/A 19.7 μg/m3 (66) 93.0
 
March 19, 2019, 10 a.m. N/A N/A 70.5 ppb (68) N/A N/A 1.0 ppb (1) 2.0 ppb (2) 0.0 ppb (0) N/A 14.8 μg/m3 (56) 68.0
 
March 19, 2019, 9 a.m. N/A N/A 50.2 ppb (46) N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) N/A 12.6 μg/m3 (51) 51.0
 
March 19, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 12.0 ppb (9) 0.0 ppb (0) N/A 10.1 μg/m3 (42) 42.0
 
March 19, 2019, 7 a.m. N/A N/A 35.6 ppb (33) N/A N/A N/A 10.0 ppb (8) N/A N/A 9.6 μg/m3 (40) 40.0
 
March 19, 2019, 6 a.m. N/A N/A 21.5 ppb (20) N/A N/A 0.0 ppb (0) 18.0 ppb (14) 0.0 ppb (0) N/A 8.9 μg/m3 (37) 37.0
 
March 19, 2019, 5 a.m. N/A N/A 13.8 ppb (13) N/A N/A 0.0 ppb (0) 25.0 ppb (19) 0.0 ppb (0) N/A 7.9 μg/m3 (33) 33.0
 
March 19, 2019, 4 a.m. N/A N/A 15.0 ppb (14) N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.0 ppb (0) N/A 8.0 μg/m3 (33) 33.0
 
March 19, 2019, 3 a.m. N/A N/A 22.0 ppb (20) N/A N/A 0.0 ppb (0) 20.0 ppb (15) 0.0 ppb (0) N/A 5.2 μg/m3 (22) 22.0
 
March 19, 2019, 2 a.m. N/A N/A 25.6 ppb (24) N/A N/A 0.0 ppb (0) 17.0 ppb (13) 0.0 ppb (0) N/A 12.1 μg/m3 (50) 50.0
 
March 19, 2019, 1 a.m. N/A N/A 16.3 ppb (15) N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.0 ppb (0) N/A 14.9 μg/m3 (56) 56.0
 
March 19, 2019, midnight N/A N/A 12.8 ppb (12) N/A N/A 1.0 ppb (1) 31.0 ppb (24) 0.0 ppb (0) N/A 14.5 μg/m3 (55) 55.0
 
March 18, 2019, 11 p.m. N/A N/A 12.1 ppb (11) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.0 ppb (0) N/A 12.3 μg/m3 (51) 51.0
 
March 18, 2019, 10 p.m. N/A N/A 11.0 ppb (10) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.0 ppb (0) N/A 4.2 μg/m3 (18) 29.0
 
March 18, 2019, 9 p.m. N/A N/A 9.8 ppb (9) N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.0 ppb (0) N/A 1.2 μg/m3 (5) 31.0
 
March 18, 2019, 8 p.m. N/A N/A 11.4 ppb (11) N/A N/A 1.0 ppb (1) 37.0 ppb (28) 0.0 ppb (0) N/A N/A 28.0
 
March 18, 2019, 7 p.m. N/A N/A 13.4 ppb (12) N/A N/A 1.0 ppb (1) 33.0 ppb (25) 0.0 ppb (0) N/A 21.2 μg/m3 (70) 70.0
 
March 18, 2019, 6 p.m. N/A N/A 10.7 ppb (10) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.0 ppb (0) N/A 3.6 μg/m3 (15) 30.0
 
March 18, 2019, 5 p.m. N/A N/A 8.9 ppb (8) N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.0 ppb (0) N/A 1.4 μg/m3 (6) 31.0
 
March 18, 2019, 4 p.m. N/A N/A 9.9 ppb (9) N/A N/A 1.0 ppb (1) 39.0 ppb (30) 0.0 ppb (0) N/A 1.0 μg/m3 (4) 30.0
 
March 18, 2019, 3 p.m. N/A N/A 15.4 ppb (14) N/A N/A 1.0 ppb (1) 33.0 ppb (25) 0.0 ppb (0) N/A 2.7 μg/m3 (11) 25.0
 
March 18, 2019, 2 p.m. N/A N/A 31.4 ppb (29) N/A N/A 1.0 ppb (1) 20.0 ppb (15) 0.0 ppb (0) N/A 8.3 μg/m3 (35) 35.0
 
March 18, 2019, 1 p.m. N/A N/A 47.2 ppb (44) N/A N/A 1.0 ppb (1) 11.0 ppb (8) 0.0 ppb (0) N/A 14.5 μg/m3 (55) 55.0
 
March 18, 2019, noon N/A N/A 81.5 ppb (79) N/A N/A 1.0 ppb (1) 2.0 ppb (2) 0.0 ppb (0) N/A 17.2 μg/m3 (61) 79.0
 
March 18, 2019, 11 a.m. N/A N/A 84.5 ppb (82) N/A N/A 1.0 ppb (1) 1.0 ppb (1) 0.0 ppb (0) N/A 16.5 μg/m3 (60) 82.0
 
March 18, 2019, 10 a.m. N/A N/A 89.0 ppb (87) N/A N/A 1.0 ppb (1) 0.0 ppb (0) 0.0 ppb (0) N/A 14.6 μg/m3 (56) 87.0
 
March 18, 2019, 9 a.m. N/A N/A 56.1 ppb (52) N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A 13.4 μg/m3 (53) 53.0
 
March 18, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 1.0 ppb (1) 0.0 ppb (0) N/A 11.5 μg/m3 (48) 48.0
 
March 18, 2019, 7 a.m. N/A N/A 17.7 ppb (16) N/A N/A N/A 16.0 ppb (12) N/A N/A 10.3 μg/m3 (43) 43.0
 
March 18, 2019, 6 a.m. N/A N/A 12.8 ppb (12) N/A N/A 0.0 ppb (0) 21.0 ppb (16) 0.0 ppb (0) N/A 10.8 μg/m3 (45) 45.0
 
March 18, 2019, 5 a.m. N/A N/A 15.9 ppb (15) N/A N/A 0.0 ppb (0) 19.0 ppb (15) 0.0 ppb (0) N/A 12.0 μg/m3 (50) 50.0
 
March 18, 2019, 4 a.m. N/A N/A 22.7 ppb (21) N/A N/A 0.0 ppb (0) 13.0 ppb (10) 0.0 ppb (0) N/A 13.1 μg/m3 (52) 52.0
 
March 18, 2019, 3 a.m. N/A N/A 26.4 ppb (24) N/A N/A 0.0 ppb (0) 10.0 ppb (8) 0.0 ppb (0) N/A 14.8 μg/m3 (56) 56.0
 
March 18, 2019, 2 a.m. N/A N/A 26.6 ppb (25) N/A N/A 0.0 ppb (0) 13.0 ppb (10) 0.0 ppb (0) N/A 11.4 μg/m3 (48) 48.0
 
March 18, 2019, 1 a.m. N/A N/A 19.0 ppb (18) N/A N/A 0.0 ppb (0) 20.0 ppb (15) 0.0 ppb (0) N/A 11.4 μg/m3 (48) 48.0
 
March 18, 2019, midnight N/A N/A 10.9 ppb (10) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.0 ppb (0) N/A 8.2 μg/m3 (34) 34.0
 
March 17, 2019, 11 p.m. N/A N/A 7.3 ppb (7) N/A N/A 1.0 ppb (1) 35.0 ppb (27) 0.0 ppb (0) N/A 7.1 μg/m3 (30) 30.0
 
March 17, 2019, 10 p.m. N/A N/A 5.2 ppb (5) N/A N/A 1.0 ppb (1) 39.0 ppb (30) 0.0 ppb (0) N/A 5.4 μg/m3 (23) 30.0
 
March 17, 2019, 9 p.m. N/A N/A 7.8 ppb (7) N/A N/A 1.0 ppb (1) 36.0 ppb (28) 0.0 ppb (0) N/A 6.8 μg/m3 (28) 28.0
 
March 17, 2019, 8 p.m. N/A N/A 7.2 ppb (7) N/A N/A 1.0 ppb (1) 36.0 ppb (28) 0.0 ppb (0) N/A 8.3 μg/m3 (35) 35.0
 
March 17, 2019, 7 p.m. N/A N/A 6.8 ppb (6) N/A N/A 4.0 ppb (6) 38.0 ppb (29) 0.0 ppb (0) N/A 6.9 μg/m3 (29) 29.0
 
March 17, 2019, 6 p.m. N/A N/A 4.4 ppb (4) N/A N/A 3.0 ppb (4) 40.0 ppb (31) 0.0 ppb (0) N/A 3.2 μg/m3 (13) 31.0
 
March 17, 2019, 5 p.m. N/A N/A 4.4 ppb (4) N/A N/A 3.0 ppb (4) 40.0 ppb (31) 0.0 ppb (0) N/A 8.1 μg/m3 (34) 34.0
 
March 17, 2019, 4 p.m. N/A N/A 4.7 ppb (4) N/A N/A 5.0 ppb (7) 39.0 ppb (30) 0.01 ppb (0) N/A 3.2 μg/m3 (13) 30.0
 
March 17, 2019, 3 p.m. N/A N/A 3.0 ppb (3) N/A N/A 1.0 ppb (1) 39.0 ppb (30) 0.0 ppb (0) N/A 2.9 μg/m3 (12) 30.0
 
March 17, 2019, 2 p.m. N/A N/A 7.5 ppb (7) N/A N/A 1.0 ppb (1) 34.0 ppb (26) 0.0 ppb (0) N/A 1.9 μg/m3 (8) 26.0
 
March 17, 2019, 1 p.m. N/A N/A 27.4 ppb (25) N/A N/A 1.0 ppb (1) 20.0 ppb (15) 0.0 ppb (0) N/A 5.2 μg/m3 (22) 25.0
 
March 17, 2019, noon N/A N/A 92.8 ppb (91) N/A N/A 1.0 ppb (1) 2.0 ppb (2) 0.0 ppb (0) N/A 14.2 μg/m3 (55) 91.0
 
March 17, 2019, 11 a.m. N/A N/A 81.2 ppb (79) N/A N/A 1.0 ppb (1) 0.0 ppb (0) 0.0 ppb (0) N/A 8.0 μg/m3 (33) 79.0
 
March 17, 2019, 10 a.m. N/A N/A 54.4 ppb (50) N/A N/A 0.0 ppb (0) 1.0 ppb (1) 0.0 ppb (0) N/A 7.2 μg/m3 (30) 50.0
 
March 17, 2019, 9 a.m. N/A N/A 38.9 ppb (36) N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) N/A 6.6 μg/m3 (28) 36.0
 
March 17, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 10.0 ppb (8) 0.0 ppb (0) N/A 5.1 μg/m3 (21) 21.0
 
March 17, 2019, 7 a.m. N/A N/A 18.1 ppb (17) N/A N/A N/A 15.0 ppb (12) N/A N/A 6.6 μg/m3 (28) 28.0
 
March 17, 2019, 6 a.m. N/A N/A 13.6 ppb (13) N/A N/A 0.0 ppb (0) 24.0 ppb (18) 0.0 ppb (0) N/A 5.5 μg/m3 (23) 23.0
 
March 17, 2019, 5 a.m. N/A N/A 7.2 ppb (7) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.0 ppb (0) N/A 4.1 μg/m3 (17) 24.0
 
March 17, 2019, 4 a.m. N/A N/A 8.7 ppb (8) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.0 ppb (0) N/A 5.5 μg/m3 (23) 23.0
 
March 17, 2019, 3 a.m. N/A N/A 6.9 ppb (6) N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.0 ppb (0) N/A 3.7 μg/m3 (15) 25.0
 
March 17, 2019, 2 a.m. N/A N/A 6.8 ppb (6) N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.0 ppb (0) N/A 5.7 μg/m3 (24) 25.0
 
March 17, 2019, 1 a.m. N/A N/A 6.7 ppb (6) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.0 ppb (0) N/A 5.1 μg/m3 (21) 27.0
 
March 17, 2019, midnight N/A N/A 4.5 ppb (4) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.0 ppb (0) N/A 5.2 μg/m3 (22) 29.0
 
March 16, 2019, 11 p.m. N/A N/A 4.3 ppb (4) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.0 ppb (0) N/A 4.7 μg/m3 (20) 30.0
 
March 16, 2019, 10 p.m. N/A N/A 3.6 ppb (3) N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.0 ppb (0) N/A 4.4 μg/m3 (18) 31.0
 
March 16, 2019, 9 p.m. N/A N/A 3.5 ppb (3) N/A N/A 0.0 ppb (0) 41.0 ppb (32) 0.0 ppb (0) N/A 4.1 μg/m3 (17) 32.0
 
March 16, 2019, 8 p.m. N/A N/A 4.4 ppb (4) N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.0 ppb (0) N/A 3.9 μg/m3 (16) 31.0
 
March 16, 2019, 7 p.m. N/A N/A 4.8 ppb (4) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.0 ppb (0) N/A 5.0 μg/m3 (21) 30.0
 
March 16, 2019, 6 p.m. N/A N/A 4.3 ppb (4) N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.0 ppb (0) N/A 3.8 μg/m3 (16) 31.0
 
March 16, 2019, 5 p.m. N/A N/A 5.0 ppb (5) N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.0 ppb (0) N/A 4.4 μg/m3 (18) 31.0
 
March 16, 2019, 4 p.m. N/A N/A 4.3 ppb (4) N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.0 ppb (0) N/A 0.5 μg/m3 (2) 31.0
 
March 16, 2019, 3 p.m. N/A N/A 4.6 ppb (4) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.0 ppb (0) N/A -1.1 μg/m3 (0) 30.0
 
March 16, 2019, 2 p.m. N/A N/A 5.7 ppb (5) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.0 ppb (0) N/A -0.3 μg/m3 (0) 28.0
 
March 16, 2019, 1 p.m. N/A N/A 7.8 ppb (7) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.0 ppb (0) N/A 6.6 μg/m3 (28) 28.0
 
March 16, 2019, noon N/A N/A 7.0 ppb (6) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.0 ppb (0) N/A 4.1 μg/m3 (17) 27.0
 
March 16, 2019, 11 a.m. N/A N/A 21.6 ppb (20) N/A N/A 0.0 ppb (0) 20.0 ppb (15) 0.0 ppb (0) N/A 7.5 μg/m3 (31) 31.0
 
March 16, 2019, 10 a.m. N/A N/A 13.1 ppb (12) N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.0 ppb (0) N/A 7.2 μg/m3 (30) 30.0
 
March 16, 2019, 9 a.m. N/A N/A 7.3 ppb (7) N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) N/A 6.6 μg/m3 (28) 28.0
 
March 16, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.0 ppb (0) N/A 4.4 μg/m3 (18) 27.0
 
March 16, 2019, 7 a.m. N/A N/A 4.6 ppb (4) N/A N/A N/A 35.0 ppb (27) N/A N/A 3.6 μg/m3 (15) 27.0
 
March 16, 2019, 6 a.m. N/A N/A 5.3 ppb (5) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.0 ppb (0) N/A 6.2 μg/m3 (26) 26.0
 
March 16, 2019, 5 a.m. N/A N/A 4.2 ppb (4) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.0 ppb (0) N/A 6.4 μg/m3 (27) 28.0
 
March 16, 2019, 4 a.m. N/A N/A 3.2 ppb (3) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.0 ppb (0) N/A 7.0 μg/m3 (29) 30.0
 
March 16, 2019, 3 a.m. N/A N/A 3.7 ppb (3) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.0 ppb (0) N/A 4.6 μg/m3 (19) 30.0
 
March 16, 2019, 2 a.m. N/A N/A 7.0 ppb (6) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.0 ppb (0) N/A 4.0 μg/m3 (17) 26.0
 
March 16, 2019, 1 a.m. N/A N/A 8.8 ppb (8) N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.0 ppb (0) N/A 6.0 μg/m3 (25) 25.0
 
March 16, 2019, midnight N/A N/A 7.6 ppb (7) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.0 ppb (0) N/A 3.6 μg/m3 (15) 25.0
 
March 15, 2019, 11 p.m. N/A N/A 7.7 ppb (7) N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.0 ppb (0) N/A 4.8 μg/m3 (20) 25.0
 
March 15, 2019, 10 p.m. N/A N/A 10.9 ppb (10) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.0 ppb (0) N/A 2.7 μg/m3 (11) 23.0
 
March 15, 2019, 9 p.m. N/A N/A 9.0 ppb (8) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.0 ppb (0) N/A 2.5 μg/m3 (10) 22.0
 
March 15, 2019, 8 p.m. N/A N/A 9.6 ppb (9) N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.0 ppb (0) N/A 5.1 μg/m3 (21) 21.0
 
March 15, 2019, 7 p.m. N/A N/A 8.3 ppb (8) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.0 ppb (0) N/A 3.8 μg/m3 (16) 22.0
 
March 15, 2019, 6 p.m. N/A N/A 8.1 ppb (8) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.0 ppb (0) N/A 4.2 μg/m3 (18) 22.0
 
March 15, 2019, 5 p.m. N/A N/A 7.1 ppb (7) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.0 ppb (0) N/A 5.4 μg/m3 (23) 23.0
 
March 15, 2019, 4 p.m. N/A N/A 6.7 ppb (6) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.0 ppb (0) N/A 3.6 μg/m3 (15) 22.0
 
March 15, 2019, 3 p.m. N/A N/A 7.3 ppb (7) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.0 ppb (0) N/A 2.3 μg/m3 (10) 22.0
 
March 15, 2019, 2 p.m. N/A N/A 6.2 ppb (6) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.0 ppb (0) N/A 2.5 μg/m3 (10) 22.0
 
March 15, 2019, 1 p.m. N/A N/A 8.7 ppb (8) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.0 ppb (0) N/A 4.1 μg/m3 (17) 22.0
 
March 15, 2019, noon N/A N/A 9.4 ppb (9) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.0 ppb (0) N/A 7.0 μg/m3 (29) 29.0
 
March 15, 2019, 11 a.m. N/A N/A 6.5 ppb (6) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.0 ppb (0) N/A 5.9 μg/m3 (25) 25.0
 
March 15, 2019, 10 a.m. N/A N/A 4.8 ppb (4) N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.0 ppb (0) N/A 4.8 μg/m3 (20) 25.0
 
March 15, 2019, 9 a.m. N/A N/A 3.3 ppb (3) N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) N/A 4.7 μg/m3 (20) 20.0
 
March 15, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.0 ppb (0) N/A 4.2 μg/m3 (18) 28.0
 
March 15, 2019, 7 a.m. N/A N/A 2.0 ppb (2) N/A N/A N/A 38.0 ppb (29) N/A N/A 4.1 μg/m3 (17) 29.0
 
March 15, 2019, 6 a.m. N/A N/A 1.7 ppb (2) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.0 ppb (0) N/A 3.5 μg/m3 (15) 30.0
 
March 15, 2019, 5 a.m. N/A N/A 2.3 ppb (2) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.0 ppb (0) N/A 1.2 μg/m3 (5) 29.0
 
March 15, 2019, 4 a.m. N/A N/A 3.7 ppb (3) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.0 ppb (0) N/A 2.5 μg/m3 (10) 28.0
 
March 15, 2019, 3 a.m. N/A N/A 2.5 ppb (2) N/A N/A 1.0 ppb (1) 41.0 ppb (32) 0.0 ppb (0) N/A -2.2 μg/m3 (0) 32.0
 
March 15, 2019, 2 a.m. N/A N/A 3.3 ppb (3) N/A N/A 1.0 ppb (1) 40.0 ppb (31) 0.0 ppb (0) N/A N/A 31.0
 
March 15, 2019, 1 a.m. N/A N/A 3.8 ppb (4) N/A N/A 1.0 ppb (1) 34.0 ppb (26) 0.0 ppb (0) N/A N/A 26.0
 
March 15, 2019, midnight N/A N/A 3.3 ppb (3) N/A N/A 1.0 ppb (1) 32.0 ppb (25) 0.0 ppb (0) N/A 16.3 μg/m3 (59) 59.0
 
March 14, 2019, 11 p.m. N/A N/A 3.3 ppb (3) N/A N/A 1.0 ppb (1) 36.0 ppb (28) 0.0 ppb (0) N/A 13.0 μg/m3 (52) 52.0
 
March 14, 2019, 10 p.m. N/A N/A 3.1 ppb (3) N/A N/A 1.0 ppb (1) 40.0 ppb (31) 0.0 ppb (0) N/A 9.8 μg/m3 (41) 41.0
 
March 14, 2019, 9 p.m. N/A N/A 6.0 ppb (6) N/A N/A 1.0 ppb (1) 39.0 ppb (30) 0.0 ppb (0) N/A -4.6 μg/m3 (0) 30.0
 
March 14, 2019, 8 p.m. N/A N/A 6.1 ppb (6) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.0 ppb (0) N/A 3.2 μg/m3 (13) 28.0
 
March 14, 2019, 7 p.m. N/A N/A 12.4 ppb (11) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.0 ppb (0) N/A 9.0 μg/m3 (38) 38.0
 
March 14, 2019, 6 p.m. N/A N/A 12.2 ppb (11) N/A N/A 1.0 ppb (1) 29.0 ppb (22) 0.0 ppb (0) N/A 16.2 μg/m3 (59) 59.0
 
March 14, 2019, 5 p.m. N/A N/A 11.9 ppb (11) N/A N/A 1.0 ppb (1) 34.0 ppb (26) 0.0 ppb (0) N/A 29.5 μg/m3 (87) 87.0
 
March 14, 2019, 4 p.m. N/A N/A 7.1 ppb (7) N/A N/A 1.0 ppb (1) 36.0 ppb (28) 0.0 ppb (0) N/A 15.7 μg/m3 (58) 58.0
 
March 14, 2019, 3 p.m. N/A N/A 7.4 ppb (7) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.0 ppb (0) N/A 10.8 μg/m3 (45) 45.0
 
March 14, 2019, 2 p.m. N/A N/A 5.6 ppb (5) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.0 ppb (0) N/A 10.3 μg/m3 (43) 43.0
 
March 14, 2019, 1 p.m. N/A N/A 5.5 ppb (5) N/A N/A 1.0 ppb (1) 35.0 ppb (27) 0.0 ppb (0) N/A 10.9 μg/m3 (45) 45.0
 
March 14, 2019, noon N/A N/A 7.1 ppb (7) N/A N/A 1.0 ppb (1) 33.0 ppb (25) 0.0 ppb (0) N/A 24.7 μg/m3 (77) 77.0
 
March 14, 2019, 11 a.m. N/A N/A 5.7 ppb (5) N/A N/A 1.0 ppb (1) 37.0 ppb (28) 0.0 ppb (0) N/A 10.1 μg/m3 (42) 42.0