AQSQID: 290950034

Site Name: Troost

Location: Kansas City (E 8th St), MO

Reporting: True, Located: True

Current AQI: 23.0

Kansas City (E 8th St) MO, US: 39.104698, -94.570602

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 21, 2019, 8 a.m. 15.5 ppb (14) 1.4 ppb (1) N/A 14.0 ppb (13) N/A 1.0 ppb (1) N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
March 21, 2019, 7 a.m. 16.6 ppb (15) 1.4 ppb (1) N/A 15.0 ppb (14) N/A 1.0 ppb (1) N/A N/A N/A 6.4 μg/m3 (27) 27.0
 
March 21, 2019, 6 a.m. 8.0 ppb (7) 0.3 ppb (0) N/A 8.0 ppb (7) N/A 2.0 ppb (3) N/A N/A N/A 5.5 μg/m3 (23) 23.0
 
March 21, 2019, 5 a.m. 12.0 ppb (11) 0.6 ppb (1) N/A 11.0 ppb (10) N/A 1.0 ppb (1) N/A N/A N/A 5.4 μg/m3 (23) 23.0
 
March 21, 2019, 4 a.m. 12.8 ppb (12) 0.8 ppb (1) N/A 12.0 ppb (11) N/A 1.0 ppb (1) N/A N/A N/A 7.7 μg/m3 (32) 32.0
 
March 21, 2019, 3 a.m. 17.8 ppb (16) 2.0 ppb (2) N/A 16.0 ppb (15) N/A 1.0 ppb (1) N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
March 21, 2019, 2 a.m. 20.4 ppb (19) 2.2 ppb (2) N/A 18.0 ppb (17) N/A 1.0 ppb (1) N/A N/A N/A 3.4 μg/m3 (14) 19.0
 
March 21, 2019, 1 a.m. 19.6 ppb (18) 1.8 ppb (2) N/A 18.0 ppb (17) N/A 1.0 ppb (1) N/A N/A N/A 3.9 μg/m3 (16) 18.0
 
March 21, 2019, midnight 13.7 ppb (13) 1.5 ppb (1) N/A 12.0 ppb (11) N/A 1.0 ppb (1) N/A N/A N/A 3.7 μg/m3 (15) 15.0
 
March 20, 2019, 11 p.m. 10.4 ppb (10) 2.1 ppb (2) N/A 8.0 ppb (7) N/A 1.0 ppb (1) N/A N/A N/A 1.2 μg/m3 (5) 10.0
 
March 20, 2019, 10 p.m. 10.6 ppb (10) 2.9 ppb (3) N/A 8.0 ppb (7) N/A 1.0 ppb (1) N/A N/A N/A N/A 10.0
 
March 20, 2019, 9 p.m. 11.9 ppb (11) 4.1 ppb (4) N/A 8.0 ppb (7) N/A 1.0 ppb (1) N/A N/A N/A 3.7 μg/m3 (15) 15.0
 
March 20, 2019, 8 p.m. 13.6 ppb (13) 5.3 ppb (5) N/A 8.0 ppb (7) N/A 1.0 ppb (1) N/A N/A N/A 5.1 μg/m3 (21) 21.0
 
March 20, 2019, 7 p.m. 12.1 ppb (11) 4.8 ppb (4) N/A 7.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
March 20, 2019, 6 p.m. 13.0 ppb (12) 5.3 ppb (5) N/A 8.0 ppb (7) N/A 1.0 ppb (1) N/A N/A N/A 7.3 μg/m3 (30) 30.0
 
March 20, 2019, 5 p.m. 13.8 ppb (13) 5.5 ppb (5) N/A 8.0 ppb (7) N/A 1.0 ppb (1) N/A N/A N/A 9.7 μg/m3 (40) 40.0
 
March 20, 2019, 4 p.m. 22.2 ppb (21) 9.5 ppb (9) N/A 13.0 ppb (12) N/A 1.0 ppb (1) N/A N/A N/A 11.8 μg/m3 (49) 49.0
 
March 20, 2019, 3 p.m. 25.8 ppb (24) 10.6 ppb (10) N/A 15.0 ppb (14) N/A 1.0 ppb (1) N/A N/A N/A 17.0 μg/m3 (61) 61.0
 
March 20, 2019, 2 p.m. 28.2 ppb (26) 12.2 ppb (11) N/A 16.0 ppb (15) N/A 1.0 ppb (1) N/A N/A N/A 12.7 μg/m3 (51) 51.0
 
March 20, 2019, 1 p.m. 21.4 ppb (20) 7.3 ppb (7) N/A 14.0 ppb (13) N/A 1.0 ppb (1) N/A N/A N/A 11.5 μg/m3 (48) 48.0
 
March 20, 2019, noon 18.9 ppb (18) 5.6 ppb (5) N/A 13.0 ppb (12) N/A 1.0 ppb (1) N/A N/A N/A 11.5 μg/m3 (48) 48.0
 
March 20, 2019, 11 a.m. 16.5 ppb (15) 4.6 ppb (4) N/A 12.0 ppb (11) N/A 1.0 ppb (1) N/A N/A N/A 12.2 μg/m3 (50) 50.0
 
March 20, 2019, 10 a.m. 12.5 ppb (12) 2.8 ppb (3) N/A 10.0 ppb (9) N/A 1.0 ppb (1) N/A N/A N/A 8.3 μg/m3 (35) 35.0
 
March 20, 2019, 9 a.m. 9.1 ppb (8) 1.4 ppb (1) N/A 8.0 ppb (7) N/A 1.0 ppb (1) N/A N/A N/A 9.9 μg/m3 (41) 41.0
 
March 20, 2019, 8 a.m. 12.5 ppb (12) 1.5 ppb (1) N/A 11.0 ppb (10) N/A 1.0 ppb (1) N/A N/A N/A 8.5 μg/m3 (35) 35.0
 
March 20, 2019, 7 a.m. 7.4 ppb (7) 0.7 ppb (1) N/A 7.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
March 20, 2019, 6 a.m. 15.0 ppb (14) 2.0 ppb (2) N/A 13.0 ppb (12) N/A 1.0 ppb (1) N/A N/A N/A 8.6 μg/m3 (36) 36.0
 
March 20, 2019, 5 a.m. 11.9 ppb (11) 1.1 ppb (1) N/A 11.0 ppb (10) N/A 1.0 ppb (1) N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
March 20, 2019, 4 a.m. 10.8 ppb (10) 0.6 ppb (1) N/A 10.0 ppb (9) N/A 1.0 ppb (1) N/A N/A N/A 8.3 μg/m3 (35) 35.0
 
March 20, 2019, 3 a.m. 13.6 ppb (13) 2.2 ppb (2) N/A 11.0 ppb (10) N/A 1.0 ppb (1) N/A N/A N/A 15.2 μg/m3 (57) 57.0
 
March 20, 2019, 2 a.m. 23.0 ppb (21) 3.0 ppb (3) N/A 20.0 ppb (19) N/A 1.0 ppb (1) N/A N/A N/A 13.0 μg/m3 (52) 52.0
 
March 20, 2019, 1 a.m. 19.2 ppb (18) 1.0 ppb (1) N/A 18.0 ppb (17) N/A 1.0 ppb (1) N/A N/A N/A 14.1 μg/m3 (54) 54.0
 
March 20, 2019, midnight 16.1 ppb (15) 1.0 ppb (1) N/A 15.0 ppb (14) N/A 1.0 ppb (1) N/A N/A N/A 12.6 μg/m3 (51) 51.0
 
March 19, 2019, 11 p.m. 8.0 ppb (7) 0.1 ppb (0) N/A 8.0 ppb (7) N/A 1.0 ppb (1) N/A N/A N/A 13.7 μg/m3 (54) 54.0
 
March 19, 2019, 10 p.m. 6.3 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 12.4 μg/m3 (51) 51.0
 
March 19, 2019, 9 p.m. 6.0 ppb (6) 0.6 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A N/A 11.8 μg/m3 (49) 49.0
 
March 19, 2019, 8 p.m. 5.0 ppb (5) 0.5 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A N/A 12.7 μg/m3 (51) 51.0
 
March 19, 2019, 7 p.m. 5.5 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A N/A 13.5 μg/m3 (53) 53.0
 
March 19, 2019, 6 p.m. 5.8 ppb (5) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A N/A 9.8 μg/m3 (41) 41.0
 
March 19, 2019, 5 p.m. 6.4 ppb (6) 1.3 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A N/A 8.3 μg/m3 (35) 35.0
 
March 19, 2019, 4 p.m. 8.6 ppb (8) 1.5 ppb (1) N/A 7.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 6.6 μg/m3 (28) 28.0
 
March 19, 2019, 3 p.m. 14.9 ppb (14) 2.2 ppb (2) N/A 13.0 ppb (12) N/A 1.0 ppb (1) N/A N/A N/A 8.7 μg/m3 (36) 36.0
 
March 19, 2019, 2 p.m. 16.7 ppb (15) 1.8 ppb (2) N/A 15.0 ppb (14) N/A 1.0 ppb (1) N/A N/A N/A 8.9 μg/m3 (37) 37.0
 
March 19, 2019, 1 p.m. 23.7 ppb (22) 2.3 ppb (2) N/A 21.0 ppb (19) N/A 0.0 ppb (0) N/A N/A N/A 7.4 μg/m3 (31) 31.0
 
March 19, 2019, noon 23.1 ppb (21) 1.7 ppb (2) N/A 21.0 ppb (19) N/A 1.0 ppb (1) N/A N/A N/A 9.3 μg/m3 (39) 39.0
 
March 19, 2019, 11 a.m. 21.3 ppb (20) 1.6 ppb (1) N/A 20.0 ppb (19) N/A 1.0 ppb (1) N/A N/A N/A 7.3 μg/m3 (30) 30.0
 
March 19, 2019, 10 a.m. 15.6 ppb (14) 0.4 ppb (0) N/A 15.0 ppb (14) N/A 1.0 ppb (1) N/A N/A N/A 5.2 μg/m3 (22) 22.0
 
March 19, 2019, 9 a.m. 15.8 ppb (15) 0.0 ppb (0) N/A 16.0 ppb (15) N/A 1.0 ppb (1) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
March 19, 2019, 8 a.m. 27.7 ppb (26) 2.5 ppb (2) N/A 25.0 ppb (23) N/A 1.0 ppb (1) N/A N/A N/A 8.3 μg/m3 (35) 35.0
 
March 19, 2019, 7 a.m. 11.1 ppb (10) 0.2 ppb (0) N/A 11.0 ppb (10) N/A 1.0 ppb (1) N/A N/A N/A 6.3 μg/m3 (26) 26.0
 
March 19, 2019, 6 a.m. 13.7 ppb (13) 0.5 ppb (0) N/A 13.0 ppb (12) N/A 1.0 ppb (1) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
March 19, 2019, 5 a.m. 14.2 ppb (13) 0.1 ppb (0) N/A 14.0 ppb (13) N/A 1.0 ppb (1) N/A N/A N/A 4.7 μg/m3 (20) 20.0
 
March 19, 2019, 4 a.m. 20.7 ppb (19) 0.1 ppb (0) N/A 20.0 ppb (19) N/A 1.0 ppb (1) N/A N/A N/A 7.2 μg/m3 (30) 30.0
 
March 19, 2019, 3 a.m. 22.1 ppb (20) 0.2 ppb (0) N/A 22.0 ppb (20) N/A 1.0 ppb (1) N/A N/A N/A 5.6 μg/m3 (23) 23.0
 
March 19, 2019, 2 a.m. 21.3 ppb (20) 0.2 ppb (0) N/A 21.0 ppb (19) N/A 1.0 ppb (1) N/A N/A N/A 6.4 μg/m3 (27) 27.0
 
March 19, 2019, 1 a.m. 17.0 ppb (16) 0.1 ppb (0) N/A 17.0 ppb (16) N/A 1.0 ppb (1) N/A N/A N/A 6.7 μg/m3 (28) 28.0
 
March 19, 2019, midnight 8.9 ppb (8) -0.1 ppb (0) N/A 9.0 ppb (8) N/A 1.0 ppb (1) N/A N/A N/A 2.7 μg/m3 (11) 11.0
 
March 18, 2019, 11 p.m. 9.5 ppb (9) 0.7 ppb (1) N/A 9.0 ppb (8) N/A 1.0 ppb (1) N/A N/A N/A 4.7 μg/m3 (20) 20.0
 
March 18, 2019, 10 p.m. 11.8 ppb (11) 2.2 ppb (2) N/A 10.0 ppb (9) N/A 1.0 ppb (1) N/A N/A N/A 3.7 μg/m3 (15) 15.0
 
March 18, 2019, 9 p.m. 7.8 ppb (7) 1.8 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 3.4 μg/m3 (14) 14.0
 
March 18, 2019, 8 p.m. 10.8 ppb (10) 3.3 ppb (3) N/A 7.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 3.2 μg/m3 (13) 13.0
 
March 18, 2019, 7 p.m. 9.5 ppb (9) 2.7 ppb (3) N/A 7.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 7.1 μg/m3 (30) 30.0
 
March 18, 2019, 6 p.m. 6.1 ppb (6) 1.3 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A N/A 5.6 μg/m3 (23) 23.0
 
March 18, 2019, 5 p.m. 5.1 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A N/A 6.4 μg/m3 (27) 27.0
 
March 18, 2019, 4 p.m. 7.9 ppb (7) 2.1 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 5.5 μg/m3 (23) 23.0
 
March 18, 2019, 3 p.m. 11.3 ppb (10) 3.3 ppb (3) N/A 8.0 ppb (7) N/A 1.0 ppb (1) N/A N/A N/A 10.4 μg/m3 (43) 43.0
 
March 18, 2019, 2 p.m. 17.4 ppb (16) 4.8 ppb (4) N/A 13.0 ppb (12) N/A 2.0 ppb (3) N/A N/A N/A 9.8 μg/m3 (41) 41.0
 
March 18, 2019, 1 p.m. 32.9 ppb (30) 7.8 ppb (7) N/A 25.0 ppb (23) N/A 1.0 ppb (1) N/A N/A N/A 2.3 μg/m3 (10) 30.0
 
March 18, 2019, noon 21.8 ppb (20) 1.6 ppb (1) N/A 20.0 ppb (19) N/A 1.0 ppb (1) N/A N/A N/A -2.9 μg/m3 (0) 20.0
 
March 18, 2019, 11 a.m. 22.5 ppb (21) 3.0 ppb (3) N/A 19.0 ppb (18) N/A 1.0 ppb (1) N/A N/A N/A 12.5 μg/m3 (51) 51.0
 
March 18, 2019, 10 a.m. 19.0 ppb (18) 1.6 ppb (1) N/A 17.0 ppb (16) N/A 1.0 ppb (1) N/A N/A N/A 7.6 μg/m3 (32) 32.0
 
March 18, 2019, 9 a.m. 31.3 ppb (29) 2.0 ppb (2) N/A 29.0 ppb (27) N/A 1.0 ppb (1) N/A N/A N/A 7.8 μg/m3 (32) 32.0
 
March 18, 2019, 8 a.m. 65.1 ppb (62) 21.0 ppb (19) N/A 44.0 ppb (41) N/A 1.0 ppb (1) N/A N/A N/A 11.9 μg/m3 (50) 62.0
 
March 18, 2019, 7 a.m. 37.8 ppb (35) 1.4 ppb (1) N/A 36.0 ppb (33) N/A 1.0 ppb (1) N/A N/A N/A 14.9 μg/m3 (56) 56.0
 
March 18, 2019, 6 a.m. 30.3 ppb (28) 0.7 ppb (1) N/A 29.0 ppb (27) N/A 1.0 ppb (1) N/A N/A N/A 7.5 μg/m3 (31) 31.0
 
March 18, 2019, 5 a.m. 11.0 ppb (10) 0.0 ppb (0) N/A 11.0 ppb (10) N/A 1.0 ppb (1) N/A N/A N/A 8.8 μg/m3 (37) 37.0
 
March 18, 2019, 4 a.m. 9.7 ppb (9) 0.1 ppb (0) N/A 10.0 ppb (9) N/A 1.0 ppb (1) N/A N/A N/A 4.8 μg/m3 (20) 20.0
 
March 18, 2019, 3 a.m. 8.3 ppb (8) 0.1 ppb (0) N/A 8.0 ppb (7) N/A 1.0 ppb (1) N/A N/A N/A 1.8 μg/m3 (8) 8.0
 
March 18, 2019, 2 a.m. 8.9 ppb (8) 0.1 ppb (0) N/A 9.0 ppb (8) N/A 1.0 ppb (1) N/A N/A N/A 3.4 μg/m3 (14) 14.0
 
March 18, 2019, 1 a.m. 12.1 ppb (11) 0.1 ppb (0) N/A 12.0 ppb (11) N/A 1.0 ppb (1) N/A N/A N/A 4.6 μg/m3 (19) 19.0
 
March 18, 2019, midnight 12.5 ppb (12) 0.9 ppb (1) N/A 12.0 ppb (11) N/A 1.0 ppb (1) N/A N/A N/A 3.4 μg/m3 (14) 14.0
 
March 17, 2019, 11 p.m. 14.3 ppb (13) 2.0 ppb (2) N/A 12.0 ppb (11) N/A 1.0 ppb (1) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
March 17, 2019, 10 p.m. 9.4 ppb (9) 1.4 ppb (1) N/A 8.0 ppb (7) N/A 1.0 ppb (1) N/A N/A N/A 3.1 μg/m3 (13) 13.0
 
March 17, 2019, 9 p.m. 7.9 ppb (7) 1.4 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 5.5 μg/m3 (23) 23.0
 
March 17, 2019, 8 p.m. 10.3 ppb (10) 2.6 ppb (2) N/A 8.0 ppb (7) N/A 1.0 ppb (1) N/A N/A N/A 6.1 μg/m3 (25) 25.0
 
March 17, 2019, 7 p.m. 7.8 ppb (7) 1.9 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 7.5 μg/m3 (31) 31.0
 
March 17, 2019, 6 p.m. 10.6 ppb (10) 3.2 ppb (3) N/A 7.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 7.6 μg/m3 (32) 32.0
 
March 17, 2019, 5 p.m. 8.9 ppb (8) 1.9 ppb (2) N/A 7.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 7.6 μg/m3 (32) 32.0
 
March 17, 2019, 4 p.m. 4.7 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A N/A 5.2 μg/m3 (22) 22.0
 
March 17, 2019, 3 p.m. 4.6 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A N/A 5.3 μg/m3 (22) 22.0
 
March 17, 2019, 2 p.m. 10.1 ppb (9) 2.5 ppb (2) N/A 8.0 ppb (7) N/A 1.0 ppb (1) N/A N/A N/A 8.2 μg/m3 (34) 34.0
 
March 17, 2019, 1 p.m. 12.0 ppb (11) 1.8 ppb (2) N/A 10.0 ppb (9) N/A 1.0 ppb (1) N/A N/A N/A 9.2 μg/m3 (38) 38.0
 
March 17, 2019, noon 19.9 ppb (18) 1.9 ppb (2) N/A 18.0 ppb (17) N/A 0.0 ppb (0) N/A N/A N/A 8.5 μg/m3 (35) 35.0
 
March 17, 2019, 11 a.m. 12.3 ppb (11) 0.6 ppb (1) N/A 12.0 ppb (11) N/A 1.0 ppb (1) N/A N/A N/A 10.3 μg/m3 (43) 43.0
 
March 17, 2019, 10 a.m. 6.0 ppb (6) 0.1 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 2.9 μg/m3 (12) 12.0
 
March 17, 2019, 9 a.m. 7.4 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 22.5 μg/m3 (72) 72.0
 
March 17, 2019, 8 a.m. 6.2 ppb (6) -0.1 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 1.6 μg/m3 (7) 7.0
 
March 17, 2019, 7 a.m. 6.9 ppb (6) 0.2 ppb (0) N/A 7.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 3.5 μg/m3 (15) 15.0
 
March 17, 2019, 6 a.m. 10.8 ppb (10) 0.5 ppb (0) N/A 10.0 ppb (9) N/A 1.0 ppb (1) N/A N/A N/A 3.8 μg/m3 (16) 16.0
 
March 17, 2019, 5 a.m. 12.3 ppb (11) 0.5 ppb (0) N/A 12.0 ppb (11) N/A 1.0 ppb (1) N/A N/A N/A 2.8 μg/m3 (12) 12.0
 
March 17, 2019, 4 a.m. 11.7 ppb (11) 0.6 ppb (1) N/A 11.0 ppb (10) N/A 1.0 ppb (1) N/A N/A N/A 3.7 μg/m3 (15) 15.0
 
March 17, 2019, 3 a.m. 11.2 ppb (10) 0.9 ppb (1) N/A 10.0 ppb (9) N/A 1.0 ppb (1) N/A N/A N/A 1.3 μg/m3 (5) 10.0
 
March 17, 2019, 2 a.m. 19.6 ppb (18) 1.3 ppb (1) N/A 18.0 ppb (17) N/A 1.0 ppb (1) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
March 17, 2019, 1 a.m. 17.1 ppb (16) 1.5 ppb (1) N/A 16.0 ppb (15) N/A 1.0 ppb (1) N/A N/A N/A 5.4 μg/m3 (23) 23.0
 
March 17, 2019, midnight 14.0 ppb (13) 1.3 ppb (1) N/A 13.0 ppb (12) N/A 1.0 ppb (1) N/A N/A N/A 1.7 μg/m3 (7) 13.0
 
March 16, 2019, 11 p.m. 8.0 ppb (7) 1.2 ppb (1) N/A 7.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 3.8 μg/m3 (16) 16.0
 
March 16, 2019, 10 p.m. 7.7 ppb (7) 1.6 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 3.7 μg/m3 (15) 15.0
 
March 16, 2019, 9 p.m. 6.4 ppb (6) 1.5 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A N/A 3.5 μg/m3 (15) 15.0
 
March 16, 2019, 8 p.m. 5.7 ppb (5) 1.3 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A N/A 2.8 μg/m3 (12) 12.0
 
March 16, 2019, 7 p.m. 6.8 ppb (6) 1.8 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A N/A 2.8 μg/m3 (12) 12.0
 
March 16, 2019, 6 p.m. 6.0 ppb (6) 1.7 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A N/A 2.9 μg/m3 (12) 12.0
 
March 16, 2019, 5 p.m. 6.7 ppb (6) 1.9 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A N/A 2.6 μg/m3 (11) 11.0
 
March 16, 2019, 4 p.m. 9.4 ppb (9) 2.7 ppb (3) N/A 7.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 9.2 μg/m3 (38) 38.0
 
March 16, 2019, 3 p.m. 29.9 ppb (28) 11.6 ppb (11) N/A 18.0 ppb (17) N/A 1.0 ppb (1) N/A N/A N/A 4.2 μg/m3 (18) 28.0
 
March 16, 2019, 2 p.m. 32.9 ppb (30) 11.4 ppb (11) N/A 21.0 ppb (19) N/A 1.0 ppb (1) N/A N/A N/A 1.0 μg/m3 (4) 30.0
 
March 16, 2019, 1 p.m. 141.2 ppb (108) 104.1 ppb (101) N/A 37.0 ppb (34) N/A 1.0 ppb (1) N/A N/A N/A 9.5 μg/m3 (40) 108.0
 
March 16, 2019, noon 70.8 ppb (68) 34.2 ppb (32) N/A 36.0 ppb (33) N/A 1.0 ppb (1) N/A N/A N/A 5.2 μg/m3 (22) 68.0
 
March 16, 2019, 11 a.m. 63.4 ppb (60) 25.1 ppb (23) N/A 38.0 ppb (35) N/A 1.0 ppb (1) N/A N/A N/A 5.6 μg/m3 (23) 60.0
 
March 16, 2019, 10 a.m. 56.0 ppb (52) 17.5 ppb (16) N/A 38.0 ppb (35) N/A 1.0 ppb (1) N/A N/A N/A 6.3 μg/m3 (26) 52.0
 
March 16, 2019, 9 a.m. 84.5 ppb (82) 44.1 ppb (41) N/A 40.0 ppb (37) N/A 1.0 ppb (1) N/A N/A N/A 7.3 μg/m3 (30) 82.0
 
March 16, 2019, 8 a.m. 59.0 ppb (55) 19.5 ppb (18) N/A 39.0 ppb (36) N/A 1.0 ppb (1) N/A N/A N/A 5.6 μg/m3 (23) 55.0
 
March 16, 2019, 7 a.m. 27.0 ppb (25) 2.2 ppb (2) N/A 25.0 ppb (23) N/A 1.0 ppb (1) N/A N/A N/A 4.7 μg/m3 (20) 25.0
 
March 16, 2019, 6 a.m. 18.6 ppb (17) 0.7 ppb (1) N/A 18.0 ppb (17) N/A 1.0 ppb (1) N/A N/A N/A 5.4 μg/m3 (23) 23.0
 
March 16, 2019, 5 a.m. 17.8 ppb (16) 0.9 ppb (1) N/A 17.0 ppb (16) N/A 1.0 ppb (1) N/A N/A N/A 4.6 μg/m3 (19) 19.0
 
March 16, 2019, 4 a.m. 17.0 ppb (16) 2.3 ppb (2) N/A 15.0 ppb (14) N/A 1.0 ppb (1) N/A N/A N/A 2.5 μg/m3 (10) 16.0
 
March 16, 2019, 3 a.m. 23.6 ppb (22) 2.8 ppb (3) N/A 21.0 ppb (19) N/A 1.0 ppb (1) N/A N/A N/A 4.4 μg/m3 (18) 22.0
 
March 16, 2019, 2 a.m. 25.6 ppb (24) 4.3 ppb (4) N/A 21.0 ppb (19) N/A 2.0 ppb (3) N/A N/A N/A 5.0 μg/m3 (21) 24.0
 
March 16, 2019, 1 a.m. 22.7 ppb (21) 4.0 ppb (4) N/A 19.0 ppb (18) N/A 3.0 ppb (4) N/A N/A N/A 2.1 μg/m3 (9) 21.0
 
March 16, 2019, midnight 14.1 ppb (13) 2.0 ppb (2) N/A 12.0 ppb (11) N/A 2.0 ppb (3) N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
March 15, 2019, 11 p.m. 15.4 ppb (14) 3.9 ppb (4) N/A 11.0 ppb (10) N/A 1.0 ppb (1) N/A N/A N/A 1.7 μg/m3 (7) 14.0
 
March 15, 2019, 10 p.m. 13.8 ppb (13) 4.1 ppb (4) N/A 10.0 ppb (9) N/A 1.0 ppb (1) N/A N/A N/A 2.2 μg/m3 (9) 13.0
 
March 15, 2019, 9 p.m. 11.5 ppb (11) 3.7 ppb (3) N/A 8.0 ppb (7) N/A 1.0 ppb (1) N/A N/A N/A 2.8 μg/m3 (12) 12.0
 
March 15, 2019, 8 p.m. 16.7 ppb (15) 6.3 ppb (6) N/A 10.0 ppb (9) N/A 1.0 ppb (1) N/A N/A N/A 2.2 μg/m3 (9) 15.0
 
March 15, 2019, 7 p.m. 15.6 ppb (14) 6.9 ppb (6) N/A 9.0 ppb (8) N/A 1.0 ppb (1) N/A N/A N/A 2.5 μg/m3 (10) 14.0
 
March 15, 2019, 6 p.m. 13.3 ppb (12) 5.8 ppb (5) N/A 7.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 2.2 μg/m3 (9) 12.0
 
March 15, 2019, 5 p.m. 17.4 ppb (16) 7.9 ppb (7) N/A 10.0 ppb (9) N/A 1.0 ppb (1) N/A N/A N/A N/A 16.0
 
March 15, 2019, 4 p.m. 19.6 ppb (18) 9.1 ppb (8) N/A 10.0 ppb (9) N/A 1.0 ppb (1) N/A N/A N/A 1.8 μg/m3 (8) 18.0
 
March 15, 2019, 3 p.m. 19.0 ppb (18) 8.5 ppb (8) N/A 10.0 ppb (9) N/A 1.0 ppb (1) N/A N/A N/A 4.8 μg/m3 (20) 20.0
 
March 15, 2019, 2 p.m. 17.4 ppb (16) 7.0 ppb (6) N/A 10.0 ppb (9) N/A 1.0 ppb (1) N/A N/A N/A 2.4 μg/m3 (10) 16.0
 
March 15, 2019, 1 p.m. 19.7 ppb (18) 6.7 ppb (6) N/A 13.0 ppb (12) N/A 1.0 ppb (1) N/A N/A N/A 2.6 μg/m3 (11) 18.0
 
March 15, 2019, noon 20.6 ppb (19) 5.2 ppb (5) N/A 15.0 ppb (14) N/A 2.0 ppb (3) N/A N/A N/A 3.3 μg/m3 (14) 19.0
 
March 15, 2019, 11 a.m. 14.7 ppb (14) 3.8 ppb (4) N/A 11.0 ppb (10) N/A 1.0 ppb (1) N/A N/A N/A 4.1 μg/m3 (17) 17.0
 
March 15, 2019, 10 a.m. 10.8 ppb (10) 1.7 ppb (2) N/A 9.0 ppb (8) N/A 2.0 ppb (3) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
March 15, 2019, 9 a.m. 6.2 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 3.5 μg/m3 (15) 15.0
 
March 15, 2019, 8 a.m. 6.4 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 4.5 μg/m3 (19) 19.0
 
March 15, 2019, 7 a.m. 7.8 ppb (7) 1.0 ppb (1) N/A 7.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 3.7 μg/m3 (15) 15.0
 
March 15, 2019, 6 a.m. 7.9 ppb (7) 1.2 ppb (1) N/A 7.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 0.9 μg/m3 (4) 7.0
 
March 15, 2019, 5 a.m. 5.8 ppb (5) 0.7 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A N/A 2.2 μg/m3 (9) 9.0
 
March 15, 2019, 4 a.m. 6.0 ppb (6) 0.7 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A N/A 1.1 μg/m3 (5) 6.0
 
March 15, 2019, 3 a.m. 7.5 ppb (7) 1.2 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A 2.7 μg/m3 (11) 11.0
 
March 15, 2019, 2 a.m. 5.2 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A 20.0 μg/m3 (67) 67.0
 
March 15, 2019, 1 a.m. 6.5 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
March 15, 2019, midnight 6.8 ppb (6) 1.5 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A 13.4 μg/m3 (53) 53.0
 
March 14, 2019, 11 p.m. 7.0 ppb (6) 1.5 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A 2.4 μg/m3 (10) 10.0
 
March 14, 2019, 10 p.m. 9.3 ppb (9) 1.9 ppb (2) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A 2.9 μg/m3 (12) 12.0
 
March 14, 2019, 9 p.m. 10.5 ppb (10) 2.4 ppb (2) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A 2.5 μg/m3 (10) 10.0
 
March 14, 2019, 8 p.m. 11.1 ppb (10) 2.8 ppb (3) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
March 14, 2019, 7 p.m. 12.3 ppb (11) 3.0 ppb (3) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A 4.1 μg/m3 (17) 17.0
 
March 14, 2019, 6 p.m. 10.5 ppb (10) 2.3 ppb (2) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A 1.2 μg/m3 (5) 10.0
 
March 14, 2019, 5 p.m. 9.8 ppb (9) 1.9 ppb (2) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A 4.1 μg/m3 (17) 17.0
 
March 14, 2019, 4 p.m. 10.7 ppb (10) 2.4 ppb (2) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A 2.4 μg/m3 (10) 10.0
 
March 14, 2019, 3 p.m. 12.3 ppb (11) 2.9 ppb (3) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A 4.8 μg/m3 (20) 20.0
 
March 14, 2019, 2 p.m. 9.7 ppb (9) 2.1 ppb (2) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A 5.2 μg/m3 (22) 22.0
 
March 14, 2019, 1 p.m. 6.4 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A 6.3 μg/m3 (26) 26.0
 
March 14, 2019, noon 7.2 ppb (7) 1.3 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A 2.2 μg/m3 (9) 9.0
 
March 14, 2019, 11 a.m. 6.1 ppb (6) 0.7 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A N/A N/A 1.8 μg/m3 (8) 8.0
 
March 14, 2019, 10 a.m. 4.0 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A 1.1 μg/m3 (5) 5.0
 
March 14, 2019, 9 a.m. 2.9 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A 0.5 μg/m3 (2) 3.0