AQSQID: 390610010

Site Name: Colerain

Location: Hamilton Co, OH

Reporting: True, Located: True

Current AQI: 40.0

Hamilton Co OH, US: 39.21494, -84.69086

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 23, 2019, 7 p.m. N/A N/A N/A N/A N/A 9.0 ppb (13) 35.0 ppb (27) N/A N/A 9.5 μg/m3 (40) 40.0
 
March 23, 2019, 6 p.m. N/A N/A N/A N/A N/A 6.0 ppb (9) 38.0 ppb (29) N/A N/A 5.9 μg/m3 (25) 29.0
 
March 23, 2019, 5 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 40.0 ppb (31) N/A N/A 5.4 μg/m3 (23) 31.0
 
March 23, 2019, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 40.0 ppb (31) N/A N/A 5.6 μg/m3 (23) 31.0
 
March 23, 2019, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 33.0 ppb (25) N/A N/A 2.2 μg/m3 (9) 25.0
 
March 23, 2019, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 30.0 ppb (23) N/A N/A 4.2 μg/m3 (18) 23.0
 
March 23, 2019, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 24.0 ppb (18) N/A N/A 5.4 μg/m3 (23) 23.0
 
March 23, 2019, noon N/A N/A N/A N/A N/A 1.0 ppb (1) 4.0 ppb (3) N/A N/A 5.1 μg/m3 (21) 21.0
 
March 23, 2019, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 3.0 ppb (2) N/A N/A 4.7 μg/m3 (20) 20.0
 
March 23, 2019, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 7.0 ppb (5) N/A N/A 2.7 μg/m3 (11) 11.0
 
March 23, 2019, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 8.0 ppb (6) N/A N/A 2.2 μg/m3 (9) 9.0
 
March 23, 2019, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 13.0 ppb (10) N/A N/A 3.2 μg/m3 (13) 13.0
 
March 23, 2019, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 12.0 ppb (9) N/A N/A 1.9 μg/m3 (8) 9.0
 
March 23, 2019, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 16.0 ppb (12) N/A N/A 3.4 μg/m3 (14) 14.0
 
March 23, 2019, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 30.0 ppb (23) N/A N/A 4.6 μg/m3 (19) 23.0
 
March 23, 2019, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 42.0 ppb (32) N/A N/A 7.1 μg/m3 (30) 32.0
 
March 23, 2019, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 44.0 ppb (34) N/A N/A 3.9 μg/m3 (16) 34.0
 
March 23, 2019, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 46.0 ppb (35) N/A N/A 3.9 μg/m3 (16) 35.0
 
March 23, 2019, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 48.0 ppb (37) N/A N/A 3.2 μg/m3 (13) 37.0
 
March 23, 2019, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) 49.0 ppb (38) N/A N/A 2.7 μg/m3 (11) 38.0
 
March 22, 2019, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 51.0 ppb (39) N/A N/A 1.2 μg/m3 (5) 39.0
 
March 22, 2019, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 51.0 ppb (39) N/A N/A 2.7 μg/m3 (11) 39.0
 
March 22, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 51.0 ppb (39) N/A N/A 4.2 μg/m3 (18) 39.0
 
March 22, 2019, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 50.0 ppb (38) N/A N/A 1.7 μg/m3 (7) 38.0
 
March 22, 2019, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 51.0 ppb (39) N/A N/A 1.7 μg/m3 (7) 39.0
 
March 22, 2019, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 50.0 ppb (38) N/A N/A 2.2 μg/m3 (9) 38.0
 
March 22, 2019, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 46.0 ppb (35) N/A N/A 4.4 μg/m3 (18) 35.0
 
March 22, 2019, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 42.0 ppb (32) N/A N/A 6.1 μg/m3 (25) 32.0
 
March 22, 2019, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 39.0 ppb (30) N/A N/A 9.2 μg/m3 (38) 38.0
 
March 22, 2019, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 36.0 ppb (28) N/A N/A 7.6 μg/m3 (32) 32.0
 
March 22, 2019, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 32.0 ppb (25) N/A N/A 7.8 μg/m3 (32) 32.0
 
March 22, 2019, noon N/A N/A N/A N/A N/A 1.0 ppb (1) 26.0 ppb (20) N/A N/A 6.6 μg/m3 (28) 28.0
 
March 22, 2019, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 26.0 ppb (20) N/A N/A 9.7 μg/m3 (40) 40.0
 
March 22, 2019, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 29.0 ppb (22) N/A N/A 13.1 μg/m3 (52) 52.0
 
March 22, 2019, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 32.0 ppb (25) N/A N/A 9.5 μg/m3 (40) 40.0
 
March 22, 2019, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 33.0 ppb (25) N/A N/A 12.4 μg/m3 (51) 51.0
 
March 22, 2019, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 36.0 ppb (28) N/A N/A 11.7 μg/m3 (49) 49.0
 
March 22, 2019, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 38.0 ppb (29) N/A N/A 10.0 μg/m3 (42) 42.0
 
March 22, 2019, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 41.0 ppb (32) N/A N/A 12.6 μg/m3 (51) 51.0
 
March 22, 2019, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 43.0 ppb (33) N/A N/A 13.8 μg/m3 (54) 54.0
 
March 22, 2019, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 37.0 ppb (28) N/A N/A 14.8 μg/m3 (56) 56.0
 
March 22, 2019, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 34.0 ppb (26) N/A N/A 14.5 μg/m3 (55) 55.0
 
March 22, 2019, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 36.0 ppb (28) N/A N/A 10.9 μg/m3 (45) 45.0
 
March 22, 2019, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) 38.0 ppb (29) N/A N/A 7.8 μg/m3 (32) 32.0
 
March 21, 2019, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 39.0 ppb (30) N/A N/A 9.5 μg/m3 (40) 40.0
 
March 21, 2019, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 40.0 ppb (31) N/A N/A 7.3 μg/m3 (30) 31.0
 
March 21, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 40.0 ppb (31) N/A N/A 9.5 μg/m3 (40) 40.0
 
March 21, 2019, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 38.0 ppb (29) N/A N/A 9.7 μg/m3 (40) 40.0
 
March 21, 2019, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 30.0 ppb (23) N/A N/A 7.6 μg/m3 (32) 32.0
 
March 21, 2019, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 35.0 ppb (27) N/A N/A 8.3 μg/m3 (35) 35.0
 
March 21, 2019, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 43.0 ppb (33) N/A N/A 6.6 μg/m3 (28) 33.0
 
March 21, 2019, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 40.0 ppb (31) N/A N/A 7.8 μg/m3 (32) 32.0
 
March 21, 2019, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 34.0 ppb (26) N/A N/A 11.4 μg/m3 (48) 48.0
 
March 21, 2019, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 28.0 ppb (22) N/A N/A 16.5 μg/m3 (60) 60.0
 
March 21, 2019, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 18.0 ppb (14) N/A N/A 15.3 μg/m3 (57) 57.0
 
March 21, 2019, noon N/A N/A N/A N/A N/A 1.0 ppb (1) 23.0 ppb (18) N/A N/A 13.3 μg/m3 (53) 53.0
 
March 21, 2019, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 28.0 ppb (22) N/A N/A 9.7 μg/m3 (40) 40.0
 
March 21, 2019, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 33.0 ppb (25) N/A N/A 6.9 μg/m3 (29) 29.0
 
March 21, 2019, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 35.0 ppb (27) N/A N/A 6.9 μg/m3 (29) 29.0
 
March 21, 2019, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 40.0 ppb (31) N/A N/A 9.9 μg/m3 (41) 41.0
 
March 21, 2019, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 41.0 ppb (32) N/A N/A 10.7 μg/m3 (45) 45.0
 
March 21, 2019, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 41.0 ppb (32) N/A N/A 7.3 μg/m3 (30) 32.0
 
March 21, 2019, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 44.0 ppb (34) N/A N/A 7.3 μg/m3 (30) 34.0
 
March 21, 2019, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 48.0 ppb (37) N/A N/A 9.7 μg/m3 (40) 40.0
 
March 21, 2019, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 51.0 ppb (39) N/A N/A 15.5 μg/m3 (57) 57.0
 
March 21, 2019, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 54.0 ppb (42) N/A N/A 10.7 μg/m3 (45) 45.0
 
March 21, 2019, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 53.0 ppb (41) N/A N/A 12.4 μg/m3 (51) 51.0
 
March 21, 2019, midnight N/A N/A N/A N/A N/A 2.0 ppb (3) 53.0 ppb (41) N/A N/A 11.7 μg/m3 (49) 49.0
 
March 20, 2019, 11 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 52.0 ppb (40) N/A N/A 7.1 μg/m3 (30) 40.0
 
March 20, 2019, 10 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 54.0 ppb (42) N/A N/A 6.4 μg/m3 (27) 42.0
 
March 20, 2019, 9 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 55.0 ppb (42) N/A N/A 7.8 μg/m3 (32) 42.0
 
March 20, 2019, 8 p.m. N/A N/A N/A N/A N/A 3.0 ppb (4) 54.0 ppb (42) N/A N/A 7.8 μg/m3 (32) 42.0
 
March 20, 2019, 7 p.m. N/A N/A N/A N/A N/A 3.0 ppb (4) 55.0 ppb (42) N/A N/A 10.7 μg/m3 (45) 45.0
 
March 20, 2019, 6 p.m. N/A N/A N/A N/A N/A 3.0 ppb (4) 55.0 ppb (42) N/A N/A 5.6 μg/m3 (23) 42.0
 
March 20, 2019, 5 p.m. N/A N/A N/A N/A N/A 3.0 ppb (4) 51.0 ppb (39) N/A N/A 7.8 μg/m3 (32) 39.0
 
March 20, 2019, 4 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 46.0 ppb (35) N/A N/A 5.1 μg/m3 (21) 35.0
 
March 20, 2019, 3 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 33.0 ppb (25) N/A N/A 15.0 μg/m3 (56) 56.0
 
March 20, 2019, 2 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 8.0 ppb (6) N/A N/A 16.8 μg/m3 (60) 60.0
 
March 20, 2019, 1 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 3.0 ppb (2) N/A N/A 18.4 μg/m3 (64) 64.0
 
March 20, 2019, noon N/A N/A N/A N/A N/A 2.0 ppb (3) 1.0 ppb (1) N/A N/A 17.9 μg/m3 (63) 63.0
 
March 20, 2019, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 1.0 ppb (1) N/A N/A 16.5 μg/m3 (60) 60.0
 
March 20, 2019, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 0.0 ppb (0) N/A N/A 16.7 μg/m3 (60) 60.0
 
March 20, 2019, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 1.0 ppb (1) N/A N/A 12.4 μg/m3 (51) 51.0
 
March 20, 2019, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 3.0 ppb (2) N/A N/A 11.4 μg/m3 (48) 48.0
 
March 20, 2019, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 4.0 ppb (3) N/A N/A 12.6 μg/m3 (51) 51.0
 
March 20, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A N/A 7.6 μg/m3 (32) 32.0
 
March 20, 2019, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 7.0 ppb (5) N/A N/A 18.7 μg/m3 (64) 64.0
 
March 20, 2019, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 7.0 ppb (5) N/A N/A 10.5 μg/m3 (44) 44.0
 
March 20, 2019, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 12.0 ppb (9) N/A N/A 10.9 μg/m3 (45) 45.0
 
March 20, 2019, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 15.0 ppb (12) N/A N/A 7.8 μg/m3 (32) 32.0
 
March 20, 2019, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 20.0 ppb (15) N/A N/A 8.8 μg/m3 (37) 37.0
 
March 20, 2019, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) 35.0 ppb (27) N/A N/A 10.5 μg/m3 (44) 44.0
 
March 19, 2019, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 51.0 ppb (39) N/A N/A 3.7 μg/m3 (15) 39.0
 
March 19, 2019, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 54.0 ppb (42) N/A N/A 4.7 μg/m3 (20) 42.0
 
March 19, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 55.0 ppb (42) N/A N/A 4.2 μg/m3 (18) 42.0
 
March 19, 2019, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 55.0 ppb (42) N/A N/A 7.1 μg/m3 (30) 42.0
 
March 19, 2019, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 55.0 ppb (42) N/A N/A 6.1 μg/m3 (25) 42.0
 
March 19, 2019, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 53.0 ppb (41) N/A N/A 5.1 μg/m3 (21) 41.0
 
March 19, 2019, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 51.0 ppb (39) N/A N/A 5.4 μg/m3 (23) 39.0
 
March 19, 2019, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 50.0 ppb (38) N/A N/A 7.1 μg/m3 (30) 38.0
 
March 19, 2019, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 45.0 ppb (35) N/A N/A 8.0 μg/m3 (33) 35.0
 
March 19, 2019, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 25.0 ppb (19) N/A N/A 12.8 μg/m3 (52) 52.0
 
March 19, 2019, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 10.0 ppb (8) N/A N/A 16.0 μg/m3 (59) 59.0
 
March 19, 2019, noon N/A N/A N/A N/A N/A 2.0 ppb (3) 1.0 ppb (1) N/A N/A 17.0 μg/m3 (61) 61.0
 
March 19, 2019, 11 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 0.0 ppb (0) N/A N/A 13.5 μg/m3 (53) 53.0
 
March 19, 2019, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 1.0 ppb (1) N/A N/A 14.0 μg/m3 (54) 54.0
 
March 19, 2019, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 1.0 ppb (1) N/A N/A 12.4 μg/m3 (51) 51.0
 
March 19, 2019, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 2.0 ppb (2) N/A N/A 14.5 μg/m3 (55) 55.0
 
March 19, 2019, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 2.0 ppb (2) N/A N/A 12.1 μg/m3 (50) 50.0
 
March 19, 2019, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 4.0 ppb (3) N/A N/A 19.4 μg/m3 (66) 66.0
 
March 19, 2019, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 5.0 ppb (4) N/A N/A 15.0 μg/m3 (56) 56.0
 
March 19, 2019, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 3.0 ppb (2) N/A N/A 16.2 μg/m3 (59) 59.0
 
March 19, 2019, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 11.0 ppb (8) N/A N/A 12.1 μg/m3 (50) 50.0
 
March 19, 2019, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 14.0 ppb (11) N/A N/A 7.1 μg/m3 (30) 30.0
 
March 19, 2019, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 18.0 ppb (14) N/A N/A 10.9 μg/m3 (45) 45.0
 
March 19, 2019, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) 26.0 ppb (20) N/A N/A 8.2 μg/m3 (34) 34.0
 
March 18, 2019, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 49.0 ppb (38) N/A N/A 4.7 μg/m3 (20) 38.0
 
March 18, 2019, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 52.0 ppb (40) N/A N/A 5.6 μg/m3 (23) 40.0
 
March 18, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 52.0 ppb (40) N/A N/A 3.7 μg/m3 (15) 40.0
 
March 18, 2019, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 52.0 ppb (40) N/A N/A 4.7 μg/m3 (20) 40.0
 
March 18, 2019, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 52.0 ppb (40) N/A N/A 6.6 μg/m3 (28) 40.0
 
March 18, 2019, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 52.0 ppb (40) N/A N/A 6.1 μg/m3 (25) 40.0
 
March 18, 2019, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 51.0 ppb (39) N/A N/A 6.9 μg/m3 (29) 39.0
 
March 18, 2019, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 52.0 ppb (40) N/A N/A 5.4 μg/m3 (23) 40.0
 
March 18, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 4.4 μg/m3 (18) 37.0
 
March 18, 2019, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 34.0 ppb (26) N/A N/A 7.7 μg/m3 (32) 32.0
 
March 18, 2019, 1 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 11.0 ppb (8) N/A N/A 13.8 μg/m3 (54) 54.0
 
March 18, 2019, noon N/A N/A N/A N/A N/A 2.0 ppb (3) 1.0 ppb (1) N/A N/A 13.1 μg/m3 (52) 52.0
 
March 18, 2019, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 1.0 ppb (1) N/A N/A 17.7 μg/m3 (62) 62.0
 
March 18, 2019, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 0.0 ppb (0) N/A N/A 8.2 μg/m3 (34) 34.0
 
March 18, 2019, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 1.0 ppb (1) N/A N/A 3.4 μg/m3 (14) 14.0
 
March 18, 2019, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 6.0 ppb (5) N/A N/A 5.2 μg/m3 (22) 22.0
 
March 18, 2019, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 7.0 ppb (5) N/A N/A 6.9 μg/m3 (29) 29.0
 
March 18, 2019, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 12.0 ppb (9) N/A N/A 9.5 μg/m3 (40) 40.0
 
March 18, 2019, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 17.0 ppb (13) N/A N/A 4.7 μg/m3 (20) 20.0
 
March 18, 2019, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 33.0 ppb (25) N/A N/A 6.6 μg/m3 (28) 28.0
 
March 18, 2019, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 43.0 ppb (33) N/A N/A 7.6 μg/m3 (32) 33.0
 
March 18, 2019, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 40.0 ppb (31) N/A N/A 9.5 μg/m3 (40) 40.0
 
March 18, 2019, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) 41.0 ppb (32) N/A N/A 12.4 μg/m3 (51) 51.0
 
March 17, 2019, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 40.0 ppb (31) N/A N/A 8.8 μg/m3 (37) 37.0
 
March 17, 2019, 10 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 47.0 ppb (36) N/A N/A 6.4 μg/m3 (27) 36.0
 
March 17, 2019, 9 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 51.0 ppb (39) N/A N/A 4.2 μg/m3 (18) 39.0
 
March 17, 2019, 8 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 51.0 ppb (39) N/A N/A 6.4 μg/m3 (27) 39.0
 
March 17, 2019, 7 p.m. N/A N/A N/A N/A N/A 3.0 ppb (4) 48.0 ppb (37) N/A N/A 7.1 μg/m3 (30) 37.0
 
March 17, 2019, 6 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 49.0 ppb (38) N/A N/A 2.5 μg/m3 (10) 38.0
 
March 17, 2019, 5 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 47.0 ppb (36) N/A N/A 4.4 μg/m3 (18) 36.0
 
March 17, 2019, 4 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 43.0 ppb (33) N/A N/A 8.3 μg/m3 (35) 35.0
 
March 17, 2019, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 28.0 ppb (22) N/A N/A 11.4 μg/m3 (48) 48.0
 
March 17, 2019, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 11.0 ppb (8) N/A N/A 14.3 μg/m3 (55) 55.0
 
March 17, 2019, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 7.0 ppb (5) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 17, 2019, noon N/A N/A N/A N/A N/A 1.0 ppb (1) 3.0 ppb (2) N/A N/A 9.5 μg/m3 (40) 40.0
 
March 17, 2019, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 1.0 ppb (1) N/A N/A 14.8 μg/m3 (56) 56.0
 
March 17, 2019, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 2.0 ppb (2) N/A N/A 10.2 μg/m3 (42) 42.0
 
March 17, 2019, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 3.0 ppb (2) N/A N/A 8.3 μg/m3 (35) 35.0
 
March 17, 2019, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 4.0 ppb (3) N/A N/A 10.7 μg/m3 (45) 45.0
 
March 17, 2019, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 7.0 ppb (5) N/A N/A 11.2 μg/m3 (47) 47.0
 
March 17, 2019, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 7.0 ppb (5) N/A N/A 11.7 μg/m3 (49) 49.0
 
March 17, 2019, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 7.0 ppb (5) N/A N/A 11.0 μg/m3 (46) 46.0
 
March 17, 2019, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 10.0 ppb (8) N/A N/A 13.3 μg/m3 (53) 53.0
 
March 17, 2019, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 13.0 ppb (10) N/A N/A 8.3 μg/m3 (35) 35.0
 
March 17, 2019, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 17.0 ppb (13) N/A N/A 9.2 μg/m3 (38) 38.0
 
March 17, 2019, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 25.0 ppb (19) N/A N/A 8.0 μg/m3 (33) 33.0
 
March 17, 2019, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) 38.0 ppb (29) N/A N/A 4.4 μg/m3 (18) 29.0
 
March 16, 2019, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 49.0 ppb (38) N/A N/A 3.9 μg/m3 (16) 38.0
 
March 16, 2019, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 51.0 ppb (39) N/A N/A 4.7 μg/m3 (20) 39.0
 
March 16, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 51.0 ppb (39) N/A N/A 7.8 μg/m3 (32) 39.0
 
March 16, 2019, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 50.0 ppb (38) N/A N/A 4.9 μg/m3 (20) 38.0
 
March 16, 2019, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 50.0 ppb (38) N/A N/A 3.7 μg/m3 (15) 38.0