AQSQID: 290950042

Site Name: Blue Ridge I-70

Location: Kansas City (Ashland Ridge), MO

Reporting: True, Located: True

Current AQI: 23.0

Kansas City (Ashland Ridge) MO, US: 39.047911, -94.450513

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
April 9, 2020, 11 p.m. 1.8 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.13 ppb (1) N/A 5.5 μg/m3 (23) 23.0
 
April 9, 2020, 10 p.m. 1.4 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.13 ppb (1) N/A 5.4 μg/m3 (23) 23.0
 
April 9, 2020, 9 p.m. 1.4 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.13 ppb (1) N/A 3.1 μg/m3 (13) 13.0
 
April 9, 2020, 8 p.m. 1.5 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.12 ppb (1) N/A 5.5 μg/m3 (23) 23.0
 
April 9, 2020, 7 p.m. 1.6 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.12 ppb (1) N/A 3.9 μg/m3 (16) 16.0
 
April 9, 2020, 6 p.m. 1.4 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.12 ppb (1) N/A 1.2 μg/m3 (5) 5.0
 
April 9, 2020, 5 p.m. 2.0 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.12 ppb (1) N/A 3.4 μg/m3 (14) 14.0
 
April 9, 2020, 4 p.m. 2.0 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.11 ppb (1) N/A 6.4 μg/m3 (27) 27.0
 
April 9, 2020, 3 p.m. 2.9 ppb (3) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.12 ppb (1) N/A 7.5 μg/m3 (31) 31.0
 
April 9, 2020, 2 p.m. 5.8 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.15 ppb (2) N/A 5.9 μg/m3 (25) 25.0
 
April 9, 2020, 1 p.m. 10.6 ppb (10) 1.5 ppb (1) N/A 9.0 ppb (8) N/A N/A N/A 0.18 ppb (2) N/A 6.7 μg/m3 (28) 28.0
 
April 9, 2020, noon 16.1 ppb (15) 0.8 ppb (1) N/A 15.0 ppb (14) N/A N/A N/A 0.21 ppb (2) N/A 5.8 μg/m3 (24) 24.0
 
April 9, 2020, 11 a.m. 15.6 ppb (14) 0.6 ppb (1) N/A 15.0 ppb (14) N/A N/A N/A 0.2 ppb (2) N/A -0.3 μg/m3 (0) 14.0
 
April 9, 2020, 10 a.m. 9.1 ppb (8) -0.4 ppb (0) N/A 10.0 ppb (9) N/A N/A N/A 0.17 ppb (2) N/A 1.1 μg/m3 (5) 9.0
 
April 9, 2020, 9 a.m. 5.5 ppb (5) -0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A 0.18 ppb (2) N/A 3.5 μg/m3 (15) 15.0
 
April 9, 2020, 8 a.m. 2.6 ppb (2) -0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.13 ppb (1) N/A 4.2 μg/m3 (18) 18.0
 
April 9, 2020, 7 a.m. 1.9 ppb (2) -0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.12 ppb (1) N/A 6.9 μg/m3 (29) 29.0
 
April 9, 2020, 6 a.m. 1.7 ppb (2) -0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.13 ppb (1) N/A 4.0 μg/m3 (17) 17.0
 
April 9, 2020, 5 a.m. 3.5 ppb (3) -0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.14 ppb (2) N/A 7.3 μg/m3 (30) 30.0
 
April 9, 2020, 4 a.m. 2.4 ppb (2) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.13 ppb (1) N/A 3.6 μg/m3 (15) 15.0
 
April 9, 2020, 3 a.m. 2.4 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.13 ppb (1) N/A 5.4 μg/m3 (23) 23.0
 
April 9, 2020, 2 a.m. 2.0 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.13 ppb (1) N/A 3.3 μg/m3 (14) 14.0
 
April 9, 2020, 1 a.m. 2.4 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.13 ppb (1) N/A 5.6 μg/m3 (23) 23.0
 
April 9, 2020, midnight 2.5 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.14 ppb (2) N/A 5.4 μg/m3 (23) 23.0
 
April 8, 2020, 11 p.m. 2.8 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.15 ppb (2) N/A 10.2 μg/m3 (42) 42.0
 
April 8, 2020, 10 p.m. 3.4 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.16 ppb (2) N/A 8.5 μg/m3 (35) 35.0
 
April 8, 2020, 9 p.m. 3.0 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.13 ppb (1) N/A 6.4 μg/m3 (27) 27.0
 
April 8, 2020, 8 p.m. 3.9 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.13 ppb (1) N/A 5.1 μg/m3 (21) 21.0
 
April 8, 2020, 7 p.m. 7.6 ppb (7) 1.5 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.17 ppb (2) N/A 14.9 μg/m3 (56) 56.0
 
April 8, 2020, 6 p.m. 12.6 ppb (12) 2.0 ppb (2) N/A 11.0 ppb (10) N/A N/A N/A 0.3 ppb (3) N/A 36.1 μg/m3 (102) 102.0
 
April 8, 2020, 5 p.m. 21.1 ppb (20) 4.2 ppb (4) N/A 17.0 ppb (16) N/A N/A N/A 0.34 ppb (4) N/A 34.9 μg/m3 (99) 99.0
 
April 8, 2020, 4 p.m. 34.9 ppb (32) 8.9 ppb (8) N/A 26.0 ppb (24) N/A N/A N/A 0.52 ppb (6) N/A 50.6 μg/m3 (138) 138.0
 
April 8, 2020, 3 p.m. 29.2 ppb (27) 6.4 ppb (6) N/A 23.0 ppb (21) N/A N/A N/A 0.63 ppb (7) N/A 66.1 μg/m3 (156) 156.0
 
April 8, 2020, 2 p.m. 26.4 ppb (24) 8.4 ppb (8) N/A 18.0 ppb (17) N/A N/A N/A 0.47 ppb (5) N/A 47.4 μg/m3 (130) 130.0
 
April 8, 2020, 1 p.m. 56.0 ppb (52) 29.9 ppb (28) N/A 26.0 ppb (24) N/A N/A N/A 0.62 ppb (7) N/A 41.1 μg/m3 (114) 114.0
 
April 8, 2020, noon 70.3 ppb (67) 37.3 ppb (35) N/A 33.0 ppb (31) N/A N/A N/A 0.83 ppb (9) N/A 43.0 μg/m3 (119) 119.0
 
April 8, 2020, 11 a.m. 31.9 ppb (30) 6.4 ppb (6) N/A 26.0 ppb (24) N/A N/A N/A 0.58 ppb (6) N/A 34.2 μg/m3 (97) 97.0
 
April 8, 2020, 10 a.m. 26.3 ppb (24) 4.6 ppb (4) N/A 22.0 ppb (20) N/A N/A N/A 0.44 ppb (5) N/A 24.8 μg/m3 (77) 77.0
 
April 8, 2020, 9 a.m. 35.6 ppb (33) 12.4 ppb (11) N/A 23.0 ppb (21) N/A N/A N/A 0.4 ppb (4) N/A 24.3 μg/m3 (76) 76.0
 
April 8, 2020, 8 a.m. 24.1 ppb (22) 4.4 ppb (4) N/A 20.0 ppb (19) N/A N/A N/A 0.38 ppb (4) N/A 21.7 μg/m3 (71) 71.0
 
April 8, 2020, 7 a.m. 37.2 ppb (34) 8.9 ppb (8) N/A 28.0 ppb (26) N/A N/A N/A 0.46 ppb (5) N/A 25.3 μg/m3 (78) 78.0
 
April 8, 2020, 6 a.m. 33.9 ppb (31) 5.8 ppb (5) N/A 28.0 ppb (26) N/A N/A N/A 0.39 ppb (4) N/A 28.5 μg/m3 (85) 85.0
 
April 8, 2020, 5 a.m. 26.0 ppb (24) 2.4 ppb (2) N/A 24.0 ppb (22) N/A N/A N/A 0.39 ppb (4) N/A 34.0 μg/m3 (97) 97.0
 
April 8, 2020, 4 a.m. 35.4 ppb (33) 4.7 ppb (4) N/A 31.0 ppb (29) N/A N/A N/A 0.49 ppb (5) N/A 41.1 μg/m3 (114) 114.0
 
April 8, 2020, 3 a.m. 42.0 ppb (39) 6.4 ppb (6) N/A 36.0 ppb (33) N/A N/A N/A 0.55 ppb (6) N/A 36.8 μg/m3 (103) 103.0
 
April 8, 2020, 2 a.m. 43.5 ppb (40) 10.3 ppb (10) N/A 33.0 ppb (31) N/A N/A N/A 0.53 ppb (6) N/A 26.7 μg/m3 (81) 81.0
 
April 8, 2020, 1 a.m. 37.3 ppb (35) 8.6 ppb (8) N/A 29.0 ppb (27) N/A N/A N/A 0.51 ppb (6) N/A 18.9 μg/m3 (65) 65.0
 
April 8, 2020, midnight 19.5 ppb (18) 4.6 ppb (4) N/A 15.0 ppb (14) N/A N/A N/A 0.34 ppb (4) N/A 12.6 μg/m3 (51) 51.0
 
April 7, 2020, 11 p.m. 12.7 ppb (12) 3.2 ppb (3) N/A 9.0 ppb (8) N/A N/A N/A 0.28 ppb (3) N/A 11.7 μg/m3 (49) 49.0
 
April 7, 2020, 10 p.m. 15.5 ppb (14) 5.4 ppb (5) N/A 10.0 ppb (9) N/A N/A N/A 0.3 ppb (3) N/A 8.1 μg/m3 (34) 34.0
 
April 7, 2020, 9 p.m. 14.3 ppb (13) 5.4 ppb (5) N/A 9.0 ppb (8) N/A N/A N/A 0.28 ppb (3) N/A 9.6 μg/m3 (40) 40.0
 
April 7, 2020, 8 p.m. 14.9 ppb (14) 6.6 ppb (6) N/A 8.0 ppb (7) N/A N/A N/A 0.28 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
April 7, 2020, 7 p.m. 13.2 ppb (12) 5.9 ppb (5) N/A 7.0 ppb (6) N/A N/A N/A 0.28 ppb (3) N/A 8.1 μg/m3 (34) 34.0
 
April 7, 2020, 6 p.m. 13.1 ppb (12) 6.8 ppb (6) N/A 6.0 ppb (6) N/A N/A N/A 0.24 ppb (3) N/A 7.3 μg/m3 (30) 30.0
 
April 7, 2020, 5 p.m. 13.7 ppb (13) 7.2 ppb (7) N/A 7.0 ppb (6) N/A N/A N/A 0.26 ppb (3) N/A 8.4 μg/m3 (35) 35.0
 
April 7, 2020, 4 p.m. 11.5 ppb (11) 5.7 ppb (5) N/A 6.0 ppb (6) N/A N/A N/A 0.25 ppb (3) N/A 7.3 μg/m3 (30) 30.0
 
April 7, 2020, 3 p.m. 11.9 ppb (11) 5.6 ppb (5) N/A 6.0 ppb (6) N/A N/A N/A 0.23 ppb (3) N/A 9.8 μg/m3 (41) 41.0
 
April 7, 2020, 2 p.m. 11.1 ppb (10) 5.5 ppb (5) N/A 6.0 ppb (6) N/A N/A N/A 0.24 ppb (3) N/A 9.1 μg/m3 (38) 38.0
 
April 7, 2020, 1 p.m. 12.5 ppb (12) 5.9 ppb (5) N/A 7.0 ppb (6) N/A N/A N/A 0.25 ppb (3) N/A 8.2 μg/m3 (34) 34.0
 
April 7, 2020, noon 14.1 ppb (13) 5.8 ppb (5) N/A 8.0 ppb (7) N/A N/A N/A 0.26 ppb (3) N/A 9.5 μg/m3 (40) 40.0
 
April 7, 2020, 11 a.m. 12.5 ppb (12) 5.0 ppb (5) N/A 7.0 ppb (6) N/A N/A N/A 0.27 ppb (3) N/A 14.6 μg/m3 (56) 56.0
 
April 7, 2020, 10 a.m. 7.7 ppb (7) 2.4 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A 0.23 ppb (3) N/A 9.4 μg/m3 (39) 39.0
 
April 7, 2020, 9 a.m. 5.8 ppb (5) 1.6 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.2 ppb (2) N/A 12.0 μg/m3 (50) 50.0
 
April 7, 2020, 8 a.m. 4.7 ppb (4) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.2 ppb (2) N/A 14.9 μg/m3 (56) 56.0
 
April 7, 2020, 7 a.m. 4.6 ppb (4) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.2 ppb (2) N/A 12.3 μg/m3 (51) 51.0
 
April 7, 2020, 6 a.m. 3.5 ppb (3) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.2 ppb (2) N/A 11.4 μg/m3 (48) 48.0
 
April 7, 2020, 5 a.m. 5.6 ppb (5) 1.2 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.2 ppb (2) N/A 10.3 μg/m3 (43) 43.0
 
April 7, 2020, 4 a.m. 8.3 ppb (8) 2.9 ppb (3) N/A 5.0 ppb (5) N/A N/A N/A 0.21 ppb (2) N/A 12.7 μg/m3 (51) 51.0
 
April 7, 2020, 3 a.m. 6.9 ppb (6) 2.3 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A 0.22 ppb (2) N/A 10.6 μg/m3 (44) 44.0
 
April 7, 2020, 2 a.m. 7.8 ppb (7) 2.8 ppb (3) N/A 5.0 ppb (5) N/A N/A N/A 0.25 ppb (3) N/A 11.8 μg/m3 (49) 49.0
 
April 7, 2020, 1 a.m. 12.2 ppb (11) 4.9 ppb (5) N/A 7.0 ppb (6) N/A N/A N/A 0.27 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
April 7, 2020, midnight 20.0 ppb (19) 9.1 ppb (8) N/A 11.0 ppb (10) N/A N/A N/A 0.32 ppb (4) N/A 12.9 μg/m3 (52) 52.0
 
April 6, 2020, 11 p.m. 22.7 ppb (21) 10.9 ppb (10) N/A 12.0 ppb (11) N/A N/A N/A 0.31 ppb (3) N/A 12.3 μg/m3 (51) 51.0
 
April 6, 2020, 10 p.m. 17.1 ppb (16) 7.8 ppb (7) N/A 9.0 ppb (8) N/A N/A N/A 0.29 ppb (3) N/A 8.3 μg/m3 (35) 35.0
 
April 6, 2020, 9 p.m. 24.1 ppb (22) 12.0 ppb (11) N/A 12.0 ppb (11) N/A N/A N/A 0.34 ppb (4) N/A 11.2 μg/m3 (47) 47.0
 
April 6, 2020, 8 p.m. 20.2 ppb (19) 10.5 ppb (10) N/A 10.0 ppb (9) N/A N/A N/A 0.3 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
April 6, 2020, 7 p.m. 20.6 ppb (19) 10.9 ppb (10) N/A 10.0 ppb (9) N/A N/A N/A 0.29 ppb (3) N/A 13.1 μg/m3 (52) 52.0
 
April 6, 2020, 6 p.m. 20.0 ppb (19) 11.1 ppb (10) N/A 9.0 ppb (8) N/A N/A N/A 0.28 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
April 6, 2020, 5 p.m. 24.7 ppb (23) 13.5 ppb (12) N/A 11.0 ppb (10) N/A N/A N/A 0.26 ppb (3) N/A 8.5 μg/m3 (35) 35.0
 
April 6, 2020, 4 p.m. 21.0 ppb (19) 11.2 ppb (10) N/A 10.0 ppb (9) N/A N/A N/A 0.26 ppb (3) N/A 10.6 μg/m3 (44) 44.0
 
April 6, 2020, 3 p.m. 19.7 ppb (18) 11.3 ppb (10) N/A 8.0 ppb (7) N/A N/A N/A 0.26 ppb (3) N/A 4.0 μg/m3 (17) 18.0
 
April 6, 2020, 2 p.m. 16.8 ppb (16) 9.7 ppb (9) N/A 7.0 ppb (6) N/A N/A N/A 0.25 ppb (3) N/A 7.3 μg/m3 (30) 30.0
 
April 6, 2020, 1 p.m. 21.7 ppb (20) 12.9 ppb (12) N/A 9.0 ppb (8) N/A N/A N/A 0.29 ppb (3) N/A 7.7 μg/m3 (32) 32.0
 
April 6, 2020, noon 19.9 ppb (18) 12.3 ppb (11) N/A 8.0 ppb (7) N/A N/A N/A 0.34 ppb (4) N/A 6.3 μg/m3 (26) 26.0
 
April 6, 2020, 11 a.m. 17.1 ppb (16) 10.5 ppb (10) N/A 7.0 ppb (6) N/A N/A N/A 0.32 ppb (4) N/A 6.9 μg/m3 (29) 29.0
 
April 6, 2020, 10 a.m. 8.9 ppb (8) 5.1 ppb (5) N/A 4.0 ppb (4) N/A N/A N/A 0.26 ppb (3) N/A 8.3 μg/m3 (35) 35.0
 
April 6, 2020, 9 a.m. 5.3 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A N/A N/A 0.23 ppb (3) N/A 8.3 μg/m3 (35) 35.0
 
April 6, 2020, 8 a.m. 5.2 ppb (5) 2.1 ppb (2) N/A 3.0 ppb (3) N/A N/A N/A 0.21 ppb (2) N/A 6.7 μg/m3 (28) 28.0
 
April 6, 2020, 7 a.m. 3.2 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A 0.21 ppb (2) N/A 6.8 μg/m3 (28) 28.0
 
April 6, 2020, 6 a.m. 6.4 ppb (6) 2.9 ppb (3) N/A 4.0 ppb (4) N/A N/A N/A 0.2 ppb (2) N/A 4.7 μg/m3 (20) 20.0
 
April 6, 2020, 5 a.m. 5.5 ppb (5) 2.0 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A 0.22 ppb (2) N/A 3.9 μg/m3 (16) 16.0
 
April 6, 2020, 4 a.m. 8.3 ppb (8) 2.8 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A 0.26 ppb (3) N/A 4.3 μg/m3 (18) 18.0
 
April 6, 2020, 3 a.m. 10.6 ppb (10) 4.6 ppb (4) N/A 6.0 ppb (6) N/A N/A N/A 0.29 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
April 6, 2020, 2 a.m. 8.7 ppb (8) 3.7 ppb (3) N/A 5.0 ppb (5) N/A N/A N/A 0.26 ppb (3) N/A 6.1 μg/m3 (25) 25.0
 
April 6, 2020, 1 a.m. 12.0 ppb (11) 5.8 ppb (5) N/A 6.0 ppb (6) N/A N/A N/A 0.3 ppb (3) N/A 5.9 μg/m3 (25) 25.0
 
April 6, 2020, midnight 13.4 ppb (12) 6.9 ppb (6) N/A 6.0 ppb (6) N/A N/A N/A 0.3 ppb (3) N/A 3.5 μg/m3 (15) 15.0
 
April 5, 2020, 11 p.m. 12.4 ppb (11) 6.5 ppb (6) N/A 6.0 ppb (6) N/A N/A N/A 0.29 ppb (3) N/A 4.4 μg/m3 (18) 18.0
 
April 5, 2020, 10 p.m. 11.7 ppb (11) 6.9 ppb (6) N/A 5.0 ppb (5) N/A N/A N/A 0.29 ppb (3) N/A 3.5 μg/m3 (15) 15.0
 
April 5, 2020, 9 p.m. 10.5 ppb (10) 6.0 ppb (6) N/A 5.0 ppb (5) N/A N/A N/A 0.26 ppb (3) N/A 7.7 μg/m3 (32) 32.0
 
April 5, 2020, 8 p.m. 10.7 ppb (10) 6.3 ppb (6) N/A 4.0 ppb (4) N/A N/A N/A 0.3 ppb (3) N/A 4.7 μg/m3 (20) 20.0
 
April 5, 2020, 7 p.m. 10.1 ppb (9) 5.6 ppb (5) N/A 4.0 ppb (4) N/A N/A N/A 0.26 ppb (3) N/A 8.4 μg/m3 (35) 35.0
 
April 5, 2020, 6 p.m. 11.1 ppb (10) 5.9 ppb (5) N/A 5.0 ppb (5) N/A N/A N/A 0.24 ppb (3) N/A 5.7 μg/m3 (24) 24.0
 
April 5, 2020, 5 p.m. 8.3 ppb (8) 4.2 ppb (4) N/A 4.0 ppb (4) N/A N/A N/A 0.22 ppb (2) N/A 3.4 μg/m3 (14) 14.0
 
April 5, 2020, 4 p.m. 7.2 ppb (7) 3.2 ppb (3) N/A 4.0 ppb (4) N/A N/A N/A 0.22 ppb (2) N/A 6.2 μg/m3 (26) 26.0
 
April 5, 2020, 3 p.m. 7.7 ppb (7) 3.4 ppb (3) N/A 4.0 ppb (4) N/A N/A N/A 0.22 ppb (2) N/A 5.6 μg/m3 (23) 23.0
 
April 5, 2020, 2 p.m. 8.5 ppb (8) 3.3 ppb (3) N/A 5.0 ppb (5) N/A N/A N/A 0.24 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
April 5, 2020, 1 p.m. 15.8 ppb (15) 4.2 ppb (4) N/A 12.0 ppb (11) N/A N/A N/A 0.2 ppb (2) N/A 6.1 μg/m3 (25) 25.0
 
April 5, 2020, noon 14.3 ppb (13) 2.5 ppb (2) N/A 12.0 ppb (11) N/A N/A N/A 0.23 ppb (3) N/A 9.6 μg/m3 (40) 40.0
 
April 5, 2020, 11 a.m. 8.8 ppb (8) 0.0 ppb (0) N/A 9.0 ppb (8) N/A N/A N/A 0.21 ppb (2) N/A 8.5 μg/m3 (35) 35.0
 
April 5, 2020, 10 a.m. 8.6 ppb (8) -0.1 ppb (0) N/A 9.0 ppb (8) N/A N/A N/A N/A N/A 5.7 μg/m3 (24) 24.0
 
April 5, 2020, 9 a.m. 9.4 ppb (9) 0.0 ppb (0) N/A 9.0 ppb (8) N/A N/A N/A 0.22 ppb (2) N/A 7.9 μg/m3 (33) 33.0
 
April 5, 2020, 8 a.m. 8.3 ppb (8) 0.1 ppb (0) N/A 8.0 ppb (7) N/A N/A N/A 0.2 ppb (2) N/A 6.5 μg/m3 (27) 27.0
 
April 5, 2020, 7 a.m. 8.3 ppb (8) 0.1 ppb (0) N/A 8.0 ppb (7) N/A N/A N/A 0.23 ppb (3) N/A 6.3 μg/m3 (26) 26.0
 
April 5, 2020, 6 a.m. 8.1 ppb (8) 1.1 ppb (1) N/A 7.0 ppb (6) N/A N/A N/A 0.22 ppb (2) N/A 5.6 μg/m3 (23) 23.0
 
April 5, 2020, 5 a.m. 9.5 ppb (9) 2.6 ppb (2) N/A 7.0 ppb (6) N/A N/A N/A 0.21 ppb (2) N/A 4.4 μg/m3 (18) 18.0
 
April 5, 2020, 4 a.m. 7.9 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A N/A N/A 0.21 ppb (2) N/A 6.1 μg/m3 (25) 25.0
 
April 5, 2020, 3 a.m. 8.5 ppb (8) 0.6 ppb (1) N/A 8.0 ppb (7) N/A N/A N/A 0.23 ppb (3) N/A 5.2 μg/m3 (22) 22.0
 
April 5, 2020, 2 a.m. 7.1 ppb (7) 0.3 ppb (0) N/A 7.0 ppb (6) N/A N/A N/A 0.24 ppb (3) N/A 6.2 μg/m3 (26) 26.0
 
April 5, 2020, 1 a.m. 8.0 ppb (7) 0.8 ppb (1) N/A 7.0 ppb (6) N/A N/A N/A 0.2 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
April 5, 2020, midnight 5.8 ppb (5) 0.9 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.18 ppb (2) N/A 2.6 μg/m3 (11) 11.0
 
April 4, 2020, 11 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.16 ppb (2) N/A 4.6 μg/m3 (19) 19.0
 
April 4, 2020, 10 p.m. 3.3 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A 0.16 ppb (2) N/A 1.6 μg/m3 (7) 7.0
 
April 4, 2020, 9 p.m. 5.1 ppb (5) 2.2 ppb (2) N/A 3.0 ppb (3) N/A N/A N/A 0.18 ppb (2) N/A 2.5 μg/m3 (10) 10.0
 
April 4, 2020, 8 p.m. 4.7 ppb (4) 2.0 ppb (2) N/A 3.0 ppb (3) N/A N/A N/A 0.19 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
April 4, 2020, 7 p.m. 3.8 ppb (4) 1.3 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.17 ppb (2) N/A 2.0 μg/m3 (8) 8.0
 
April 4, 2020, 6 p.m. 3.5 ppb (3) 1.2 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A 0.15 ppb (2) N/A 1.2 μg/m3 (5) 5.0
 
April 4, 2020, 5 p.m. 2.6 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A 0.15 ppb (2) N/A 2.0 μg/m3 (8) 8.0
 
April 4, 2020, 4 p.m. 3.4 ppb (3) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.17 ppb (2) N/A 1.7 μg/m3 (7) 7.0
 
April 4, 2020, 3 p.m. 4.5 ppb (4) 1.2 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.17 ppb (2) N/A 4.1 μg/m3 (17) 17.0
 
April 4, 2020, 2 p.m. 2.9 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.17 ppb (2) N/A 3.4 μg/m3 (14) 14.0
 
April 4, 2020, 1 p.m. 2.9 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.14 ppb (2) N/A 4.3 μg/m3 (18) 18.0
 
April 4, 2020, noon 2.3 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.16 ppb (2) N/A 4.6 μg/m3 (19) 19.0
 
April 4, 2020, 11 a.m. 1.9 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.15 ppb (2) N/A 2.7 μg/m3 (11) 11.0
 
April 4, 2020, 10 a.m. 1.9 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.14 ppb (2) N/A 2.7 μg/m3 (11) 11.0
 
April 4, 2020, 9 a.m. 1.8 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.14 ppb (2) N/A 5.4 μg/m3 (23) 23.0
 
April 4, 2020, 8 a.m. 1.6 ppb (1) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.14 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
April 4, 2020, 7 a.m. 1.7 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.14 ppb (2) N/A 7.4 μg/m3 (31) 31.0
 
April 4, 2020, 6 a.m. 1.4 ppb (1) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.15 ppb (2) N/A 6.5 μg/m3 (27) 27.0
 
April 4, 2020, 5 a.m. 2.1 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.15 ppb (2) N/A 2.7 μg/m3 (11) 11.0
 
April 4, 2020, 4 a.m. 2.5 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.15 ppb (2) N/A 0.4 μg/m3 (2) 3.0
 
April 4, 2020, 3 a.m. 2.2 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.15 ppb (2) N/A -2.9 μg/m3 (0) 2.0
 
April 4, 2020, 2 a.m. 2.2 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.15 ppb (2) N/A -3.4 μg/m3 (0) 2.0
 
April 4, 2020, 1 a.m. 3.1 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.16 ppb (2) N/A -1.5 μg/m3 (0) 3.0
 
April 4, 2020, midnight 3.3 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.15 ppb (2) N/A -1.1 μg/m3 (0) 3.0
 
April 3, 2020, 11 p.m. 3.5 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.16 ppb (2) N/A 3.2 μg/m3 (13) 13.0
 
April 3, 2020, 10 p.m. 3.6 ppb (3) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.16 ppb (2) N/A 2.0 μg/m3 (8) 8.0
 
April 3, 2020, 9 p.m. 4.5 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.16 ppb (2) N/A 2.5 μg/m3 (10) 10.0
 
April 3, 2020, 8 p.m. 4.5 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.17 ppb (2) N/A -2.2 μg/m3 (0) 4.0
 
April 3, 2020, 7 p.m. 4.7 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.16 ppb (2) N/A -0.1 μg/m3 (0) 4.0
 
April 3, 2020, 6 p.m. 4.7 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.16 ppb (2) N/A N/A 4.0
 
April 3, 2020, 5 p.m. 6.8 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A 0.17 ppb (2) N/A N/A 6.0
 
April 3, 2020, 4 p.m. 5.0 ppb (5) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.16 ppb (2) N/A N/A 5.0
 
April 3, 2020, 3 p.m. 4.3 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.15 ppb (2) N/A N/A 4.0
 
April 3, 2020, 2 p.m. 4.6 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.15 ppb (2) N/A 5.8 μg/m3 (24) 24.0
 
April 3, 2020, 1 p.m. 3.5 ppb (3) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.14 ppb (2) N/A 0.8 μg/m3 (3) 4.0
 
April 3, 2020, noon 3.2 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.16 ppb (2) N/A 5.3 μg/m3 (22) 22.0
 
April 3, 2020, 11 a.m. 3.1 ppb (3) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.15 ppb (2) N/A 6.9 μg/m3 (29) 29.0
 
April 3, 2020, 10 a.m. 2.4 ppb (2) -0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.15 ppb (2) N/A 4.7 μg/m3 (20) 20.0
 
April 3, 2020, 9 a.m. 2.4 ppb (2) -0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.15 ppb (2) N/A 4.1 μg/m3 (17) 17.0
 
April 3, 2020, 8 a.m. 3.4 ppb (3) -0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.14 ppb (2) N/A 5.5 μg/m3 (23) 23.0
 
April 3, 2020, 7 a.m. 4.0 ppb (4) -0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.14 ppb (2) N/A 3.9 μg/m3 (16) 16.0
 
April 3, 2020, 6 a.m. 6.4 ppb (6) 0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A 0.16 ppb (2) N/A 5.8 μg/m3 (24) 24.0
 
April 3, 2020, 5 a.m. 11.2 ppb (10) 0.5 ppb (0) N/A 11.0 ppb (10) N/A N/A N/A 0.17 ppb (2) N/A 6.5 μg/m3 (27) 27.0
 
April 3, 2020, 4 a.m. 10.2 ppb (9) 3.3 ppb (3) N/A 7.0 ppb (6) N/A N/A N/A 0.21 ppb (2) N/A 5.8 μg/m3 (24) 24.0
 
April 3, 2020, 3 a.m. 15.1 ppb (14) 5.7 ppb (5) N/A 9.0 ppb (8) N/A N/A N/A 0.21 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
April 3, 2020, 2 a.m. 14.4 ppb (13) 4.0 ppb (4) N/A 10.0 ppb (9) N/A N/A N/A 0.3 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
April 3, 2020, 1 a.m. 20.2 ppb (19) 7.3 ppb (7) N/A 13.0 ppb (12) N/A N/A N/A 0.28 ppb (3) N/A 8.6 μg/m3 (36) 36.0
 
April 3, 2020, midnight 18.9 ppb (18) 5.6 ppb (5) N/A 13.0 ppb (12) N/A N/A N/A 0.33 ppb (4) N/A 7.9 μg/m3 (33) 33.0