ID: 2261

AQSQID: 290950042

Site Name: Blue Ridge I-70

Added: April 21, 2020, 6:24 p.m.

Updated: Feb. 26, 2021, 9:32 a.m.

Location: Kansas City (Ashland Ridge), MO

Reporting: True, Located: True

Current AQI: 19.0

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
Feb. 26, 2021, 8 a.m. 9.5 ppb (9) 1.3 ppb (2) N/A 8.0 ppb (8) N/A N/A N/A 0.2 ppb (3) N/A 4.5 μg/m3 (19) 19.0
 
Feb. 26, 2021, 7 a.m. 9.6 ppb (10) 1.0 ppb (1) N/A 9.0 ppb (9) N/A N/A N/A 0.2 ppb (3) N/A 5.8 μg/m3 (25) 25.0
 
Feb. 26, 2021, 6 a.m. 10.7 ppb (11) 1.3 ppb (2) N/A 9.0 ppb (9) N/A N/A N/A 0.22 ppb (3) N/A 5.5 μg/m3 (23) 23.0
 
Feb. 26, 2021, 5 a.m. 14.2 ppb (14) 1.4 ppb (2) N/A 13.0 ppb (13) N/A N/A N/A 0.21 ppb (3) N/A 6.4 μg/m3 (27) 27.0
 
Feb. 26, 2021, 4 a.m. 18.0 ppb (17) 2.2 ppb (3) N/A 16.0 ppb (16) N/A N/A N/A 0.27 ppb (4) N/A 8.2 μg/m3 (35) 35.0
 
Feb. 26, 2021, 3 a.m. 55.3 ppb (53) 20.1 ppb (19) N/A 35.0 ppb (34) N/A N/A N/A 0.8 ppb (10) N/A 14.4 μg/m3 (56) 56.0
 
Feb. 26, 2021, 2 a.m. 70.6 ppb (69) 32.3 ppb (31) N/A 39.0 ppb (37) N/A N/A N/A 0.9 ppb (11) N/A 15.2 μg/m3 (58) 69.0
 
Feb. 26, 2021, 1 a.m. 72.8 ppb (72) 36.6 ppb (35) N/A 36.0 ppb (34) N/A N/A N/A 0.68 ppb (8) N/A 9.5 μg/m3 (40) 72.0
 
Feb. 26, 2021, midnight 62.9 ppb (61) 31.1 ppb (30) N/A 32.0 ppb (31) N/A N/A N/A 0.58 ppb (7) N/A 5.8 μg/m3 (25) 61.0
 
Feb. 25, 2021, 11 p.m. 57.5 ppb (55) 32.1 ppb (31) N/A 26.0 ppb (25) N/A N/A N/A 0.44 ppb (5) N/A 2.7 μg/m3 (12) 55.0
 
Feb. 25, 2021, 10 p.m. 64.8 ppb (63) 38.4 ppb (37) N/A 27.0 ppb (26) N/A N/A N/A 0.47 ppb (6) N/A 11.3 μg/m3 (48) 63.0
 
Feb. 25, 2021, 9 p.m. 31.8 ppb (30) 13.9 ppb (14) N/A 18.0 ppb (17) N/A N/A N/A 0.38 ppb (5) N/A 2.9 μg/m3 (13) 30.0
 
Feb. 25, 2021, 8 p.m. 10.8 ppb (11) 2.5 ppb (3) N/A 8.0 ppb (8) N/A N/A N/A 0.24 ppb (3) N/A 3.2 μg/m3 (14) 14.0
 
Feb. 25, 2021, 7 p.m. 11.6 ppb (11) 2.7 ppb (3) N/A 9.0 ppb (9) N/A N/A N/A 0.25 ppb (3) N/A 7.3 μg/m3 (31) 31.0
 
Feb. 25, 2021, 6 p.m. 11.7 ppb (12) 3.6 ppb (4) N/A 8.0 ppb (8) N/A N/A N/A 0.21 ppb (3) N/A 3.5 μg/m3 (15) 15.0
 
Feb. 25, 2021, 5 p.m. 20.1 ppb (19) 8.3 ppb (8) N/A 12.0 ppb (12) N/A N/A N/A 0.24 ppb (3) N/A 5.1 μg/m3 (22) 22.0
 
Feb. 25, 2021, 4 p.m. 40.7 ppb (39) 22.3 ppb (22) N/A 19.0 ppb (18) N/A N/A N/A 0.31 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Feb. 25, 2021, 3 p.m. 42.8 ppb (41) 24.7 ppb (24) N/A 18.0 ppb (17) N/A N/A N/A 0.37 ppb (5) N/A 9.6 μg/m3 (40) 41.0
 
Feb. 25, 2021, 2 p.m. 62.3 ppb (60) 35.8 ppb (34) N/A 27.0 ppb (26) N/A N/A N/A 0.46 ppb (6) N/A 10.3 μg/m3 (43) 60.0
 
Feb. 25, 2021, 1 p.m. 48.8 ppb (47) 20.5 ppb (20) N/A 28.0 ppb (27) N/A N/A N/A 0.66 ppb (8) N/A 11.0 μg/m3 (46) 47.0
 
Feb. 25, 2021, noon 42.1 ppb (40) 10.9 ppb (11) N/A 31.0 ppb (30) N/A N/A N/A 0.5 ppb (6) N/A 9.3 μg/m3 (39) 40.0
 
Feb. 25, 2021, 11 a.m. 44.1 ppb (42) 14.1 ppb (14) N/A 30.0 ppb (29) N/A N/A N/A 0.41 ppb (5) N/A 6.9 μg/m3 (29) 42.0
 
Feb. 25, 2021, 10 a.m. 30.5 ppb (29) 5.5 ppb (6) N/A 25.0 ppb (24) N/A N/A N/A 0.29 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Feb. 25, 2021, 9 a.m. 22.8 ppb (22) 1.4 ppb (2) N/A 21.0 ppb (20) N/A N/A N/A 0.28 ppb (4) N/A 10.6 μg/m3 (45) 45.0
 
Feb. 25, 2021, 8 a.m. 21.1 ppb (20) 1.6 ppb (2) N/A 20.0 ppb (19) N/A N/A N/A 0.29 ppb (4) N/A 7.2 μg/m3 (31) 31.0
 
Feb. 25, 2021, 7 a.m. 18.2 ppb (18) 1.0 ppb (1) N/A 17.0 ppb (17) N/A N/A N/A 0.32 ppb (4) N/A 4.4 μg/m3 (19) 19.0
 
Feb. 25, 2021, 6 a.m. 30.7 ppb (29) 9.1 ppb (9) N/A 22.0 ppb (21) N/A N/A N/A 0.33 ppb (4) N/A 2.4 μg/m3 (10) 29.0
 
Feb. 25, 2021, 5 a.m. 9.7 ppb (10) 0.5 ppb (1) N/A 9.0 ppb (9) N/A N/A N/A 0.22 ppb (3) N/A 5.8 μg/m3 (25) 25.0
 
Feb. 25, 2021, 4 a.m. 8.7 ppb (9) 0.4 ppb (1) N/A 8.0 ppb (8) N/A N/A N/A 0.23 ppb (3) N/A 5.3 μg/m3 (23) 23.0
 
Feb. 25, 2021, 3 a.m. 7.9 ppb (8) 0.4 ppb (1) N/A 7.0 ppb (7) N/A N/A N/A 0.22 ppb (3) N/A 3.6 μg/m3 (16) 16.0
 
Feb. 25, 2021, 2 a.m. 6.0 ppb (6) 0.3 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.17 ppb (3) N/A 5.2 μg/m3 (22) 22.0
 
Feb. 25, 2021, 1 a.m. 5.2 ppb (5) 0.4 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.18 ppb (3) N/A 3.2 μg/m3 (14) 14.0
 
Feb. 25, 2021, midnight 5.0 ppb (5) 0.5 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.18 ppb (3) N/A 3.8 μg/m3 (16) 16.0
 
Feb. 24, 2021, 11 p.m. 4.4 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.18 ppb (3) N/A 3.5 μg/m3 (15) 15.0
 
Feb. 24, 2021, 10 p.m. 4.9 ppb (5) 1.3 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A 0.18 ppb (3) N/A 5.6 μg/m3 (24) 24.0
 
Feb. 24, 2021, 9 p.m. 4.5 ppb (5) 1.5 ppb (2) N/A 3.0 ppb (3) N/A N/A N/A 0.16 ppb (3) N/A 5.8 μg/m3 (25) 25.0
 
Feb. 24, 2021, 8 p.m. 3.7 ppb (4) 1.6 ppb (2) N/A 2.0 ppb (2) N/A N/A N/A 0.17 ppb (3) N/A 4.2 μg/m3 (18) 18.0
 
Feb. 24, 2021, 7 p.m. 4.2 ppb (4) 1.9 ppb (2) N/A 2.0 ppb (2) N/A N/A N/A 0.16 ppb (3) N/A 0.9 μg/m3 (4) 4.0
 
Feb. 24, 2021, 6 p.m. 4.4 ppb (5) 2.0 ppb (2) N/A 2.0 ppb (2) N/A N/A N/A 0.16 ppb (3) N/A 4.4 μg/m3 (19) 19.0
 
Feb. 24, 2021, 5 p.m. 3.9 ppb (4) 1.7 ppb (2) N/A 2.0 ppb (2) N/A N/A N/A 0.16 ppb (3) N/A 3.9 μg/m3 (17) 17.0
 
Feb. 24, 2021, 4 p.m. 3.8 ppb (4) 1.5 ppb (2) N/A 2.0 ppb (2) N/A N/A N/A 0.16 ppb (3) N/A -3.0 μg/m3 (0) 4.0
 
Feb. 24, 2021, 3 p.m. 4.9 ppb (5) 1.7 ppb (2) N/A 3.0 ppb (3) N/A N/A N/A 0.17 ppb (3) N/A 3.6 μg/m3 (16) 16.0
 
Feb. 24, 2021, 2 p.m. 4.9 ppb (5) 1.2 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A 0.17 ppb (3) N/A 6.9 μg/m3 (29) 29.0
 
Feb. 24, 2021, 1 p.m. 6.0 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.17 ppb (3) N/A 2.7 μg/m3 (12) 12.0
 
Feb. 24, 2021, noon 5.9 ppb (6) 0.3 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.16 ppb (3) N/A 3.9 μg/m3 (17) 17.0
 
Feb. 24, 2021, 11 a.m. 4.3 ppb (5) 0.3 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.15 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Feb. 24, 2021, 10 a.m. 4.3 ppb (5) 0.4 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.16 ppb (3) N/A 2.2 μg/m3 (10) 10.0
 
Feb. 24, 2021, 9 a.m. 4.4 ppb (5) 0.4 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.15 ppb (2) N/A 2.5 μg/m3 (11) 11.0
 
Feb. 24, 2021, 8 a.m. 7.7 ppb (8) 0.4 ppb (1) N/A 7.0 ppb (7) N/A N/A N/A 0.16 ppb (3) N/A -1.2 μg/m3 (0) 8.0
 
Feb. 24, 2021, 7 a.m. 16.5 ppb (16) 0.8 ppb (1) N/A 16.0 ppb (16) N/A N/A N/A 0.25 ppb (3) N/A 4.6 μg/m3 (20) 20.0
 
Feb. 24, 2021, 6 a.m. 48.1 ppb (46) 12.3 ppb (12) N/A 36.0 ppb (34) N/A N/A N/A 0.39 ppb (5) N/A 9.0 μg/m3 (38) 46.0
 
Feb. 24, 2021, 5 a.m. 30.4 ppb (29) 7.6 ppb (8) N/A 23.0 ppb (22) N/A N/A N/A 0.31 ppb (4) N/A 4.8 μg/m3 (20) 29.0
 
Feb. 24, 2021, 4 a.m. 41.8 ppb (40) 9.3 ppb (9) N/A 33.0 ppb (32) N/A N/A N/A 0.4 ppb (5) N/A 5.0 μg/m3 (21) 40.0
 
Feb. 24, 2021, 3 a.m. 64.4 ppb (63) 23.5 ppb (23) N/A 41.0 ppb (39) N/A N/A N/A 0.52 ppb (6) N/A 5.5 μg/m3 (23) 63.0
 
Feb. 24, 2021, 2 a.m. 50.6 ppb (48) 20.0 ppb (19) N/A 31.0 ppb (30) N/A N/A N/A 0.52 ppb (6) N/A 7.5 μg/m3 (32) 48.0
 
Feb. 24, 2021, 1 a.m. 51.3 ppb (49) 21.6 ppb (21) N/A 30.0 ppb (29) N/A N/A N/A 0.5 ppb (6) N/A 6.6 μg/m3 (28) 49.0
 
Feb. 24, 2021, midnight 46.0 ppb (44) 20.4 ppb (20) N/A 26.0 ppb (25) N/A N/A N/A 0.43 ppb (5) N/A 10.7 μg/m3 (45) 45.0
 
Feb. 23, 2021, 11 p.m. 42.1 ppb (40) 22.1 ppb (21) N/A 20.0 ppb (19) N/A N/A N/A 0.31 ppb (4) N/A 4.0 μg/m3 (17) 40.0
 
Feb. 23, 2021, 10 p.m. 33.6 ppb (32) 17.1 ppb (17) N/A 17.0 ppb (17) N/A N/A N/A 0.31 ppb (4) N/A 2.7 μg/m3 (12) 32.0
 
Feb. 23, 2021, 9 p.m. 32.2 ppb (31) 16.9 ppb (16) N/A 15.0 ppb (15) N/A N/A N/A 0.31 ppb (4) N/A 4.8 μg/m3 (20) 31.0
 
Feb. 23, 2021, 8 p.m. 26.7 ppb (26) 14.1 ppb (14) N/A 13.0 ppb (13) N/A N/A N/A 0.28 ppb (4) N/A 3.8 μg/m3 (16) 26.0
 
Feb. 23, 2021, 7 p.m. 21.4 ppb (21) 12.0 ppb (12) N/A 9.0 ppb (9) N/A N/A N/A 0.25 ppb (3) N/A 4.7 μg/m3 (20) 21.0
 
Feb. 23, 2021, 6 p.m. 28.6 ppb (27) 17.5 ppb (17) N/A 11.0 ppb (11) N/A N/A N/A 0.26 ppb (4) N/A 6.3 μg/m3 (27) 27.0
 
Feb. 23, 2021, 5 p.m. 34.9 ppb (33) 22.3 ppb (22) N/A 13.0 ppb (13) N/A N/A N/A 0.31 ppb (4) N/A 5.0 μg/m3 (21) 33.0
 
Feb. 23, 2021, 4 p.m. 42.5 ppb (41) 26.5 ppb (25) N/A 16.0 ppb (16) N/A N/A N/A 0.31 ppb (4) N/A 7.8 μg/m3 (33) 41.0
 
Feb. 23, 2021, 3 p.m. 41.0 ppb (39) 24.1 ppb (23) N/A 17.0 ppb (17) N/A N/A N/A 0.34 ppb (4) N/A 3.4 μg/m3 (15) 39.0
 
Feb. 23, 2021, 2 p.m. 57.9 ppb (56) 33.7 ppb (32) N/A 24.0 ppb (23) N/A N/A N/A 0.43 ppb (5) N/A 6.4 μg/m3 (27) 56.0
 
Feb. 23, 2021, 1 p.m. 67.7 ppb (66) 37.6 ppb (36) N/A 30.0 ppb (29) N/A N/A N/A 0.49 ppb (6) N/A 2.1 μg/m3 (9) 66.0
 
Feb. 23, 2021, noon 50.9 ppb (49) 22.0 ppb (21) N/A 29.0 ppb (28) N/A N/A N/A 0.54 ppb (6) N/A 5.3 μg/m3 (23) 49.0
 
Feb. 23, 2021, 11 a.m. 47.2 ppb (45) 18.1 ppb (18) N/A 29.0 ppb (28) N/A N/A N/A 0.53 ppb (6) N/A 4.9 μg/m3 (21) 45.0
 
Feb. 23, 2021, 10 a.m. 34.2 ppb (33) 8.4 ppb (8) N/A 26.0 ppb (25) N/A N/A N/A 0.33 ppb (4) N/A 7.6 μg/m3 (32) 33.0
 
Feb. 23, 2021, 9 a.m. 26.2 ppb (25) 5.2 ppb (5) N/A 21.0 ppb (20) N/A N/A N/A 0.21 ppb (3) N/A 7.5 μg/m3 (32) 32.0
 
Feb. 23, 2021, 8 a.m. 16.9 ppb (16) 2.1 ppb (2) N/A 15.0 ppb (15) N/A N/A N/A 0.2 ppb (3) N/A 2.9 μg/m3 (13) 16.0
 
Feb. 23, 2021, 7 a.m. 13.3 ppb (13) 1.4 ppb (2) N/A 12.0 ppb (12) N/A N/A N/A 0.2 ppb (3) N/A 2.9 μg/m3 (13) 13.0
 
Feb. 23, 2021, 6 a.m. 20.3 ppb (20) 3.3 ppb (4) N/A 17.0 ppb (17) N/A N/A N/A 0.26 ppb (4) N/A 7.0 μg/m3 (30) 30.0
 
Feb. 23, 2021, 5 a.m. 23.9 ppb (23) 8.5 ppb (9) N/A 15.0 ppb (15) N/A N/A N/A 0.24 ppb (3) N/A 2.7 μg/m3 (12) 23.0
 
Feb. 23, 2021, 4 a.m. 29.7 ppb (29) 9.4 ppb (9) N/A 20.0 ppb (19) N/A N/A N/A 0.32 ppb (4) N/A 6.2 μg/m3 (26) 29.0
 
Feb. 23, 2021, 3 a.m. 31.7 ppb (30) 9.2 ppb (9) N/A 23.0 ppb (22) N/A N/A N/A 0.32 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
Feb. 23, 2021, 2 a.m. 15.8 ppb (15) 4.1 ppb (4) N/A 12.0 ppb (12) N/A N/A N/A 0.27 ppb (4) N/A 5.7 μg/m3 (24) 24.0
 
Feb. 23, 2021, 1 a.m. 34.6 ppb (33) 15.9 ppb (15) N/A 19.0 ppb (18) N/A N/A N/A 0.36 ppb (5) N/A 5.3 μg/m3 (23) 33.0
 
Feb. 23, 2021, midnight 44.5 ppb (42) 18.2 ppb (18) N/A 26.0 ppb (25) N/A N/A N/A 0.39 ppb (5) N/A 8.2 μg/m3 (35) 42.0
 
Feb. 22, 2021, 11 p.m. 22.5 ppb (22) 9.1 ppb (9) N/A 13.0 ppb (13) N/A N/A N/A 0.27 ppb (4) N/A 3.4 μg/m3 (15) 22.0
 
Feb. 22, 2021, 10 p.m. 18.6 ppb (18) 7.7 ppb (8) N/A 11.0 ppb (11) N/A N/A N/A 0.24 ppb (3) N/A 9.4 μg/m3 (40) 40.0
 
Feb. 22, 2021, 9 p.m. 15.1 ppb (15) 7.1 ppb (7) N/A 8.0 ppb (8) N/A N/A N/A 0.22 ppb (3) N/A 3.6 μg/m3 (16) 16.0
 
Feb. 22, 2021, 8 p.m. 13.9 ppb (14) 7.1 ppb (7) N/A 7.0 ppb (7) N/A N/A N/A 0.21 ppb (3) N/A 2.4 μg/m3 (10) 14.0
 
Feb. 22, 2021, 7 p.m. 13.5 ppb (13) 6.7 ppb (7) N/A 7.0 ppb (7) N/A N/A N/A 0.2 ppb (3) N/A 1.4 μg/m3 (6) 13.0
 
Feb. 22, 2021, 6 p.m. 15.6 ppb (15) 7.7 ppb (8) N/A 8.0 ppb (8) N/A N/A N/A 0.21 ppb (3) N/A 2.7 μg/m3 (12) 15.0
 
Feb. 22, 2021, 5 p.m. 16.6 ppb (16) 8.5 ppb (9) N/A 8.0 ppb (8) N/A N/A N/A 0.21 ppb (3) N/A 1.3 μg/m3 (6) 16.0
 
Feb. 22, 2021, 4 p.m. 20.6 ppb (20) 9.8 ppb (10) N/A 11.0 ppb (11) N/A N/A N/A 0.24 ppb (3) N/A 7.4 μg/m3 (31) 31.0
 
Feb. 22, 2021, 3 p.m. 26.9 ppb (26) 13.6 ppb (13) N/A 13.0 ppb (13) N/A N/A N/A 0.29 ppb (4) N/A 6.0 μg/m3 (25) 26.0
 
Feb. 22, 2021, 2 p.m. 32.4 ppb (31) 16.1 ppb (16) N/A 16.0 ppb (16) N/A N/A N/A 0.3 ppb (4) N/A 6.7 μg/m3 (28) 31.0
 
Feb. 22, 2021, 1 p.m. 43.2 ppb (41) 19.4 ppb (19) N/A 24.0 ppb (23) N/A N/A N/A 0.38 ppb (5) N/A 7.1 μg/m3 (30) 41.0
 
Feb. 22, 2021, noon 36.9 ppb (35) 15.7 ppb (15) N/A 21.0 ppb (20) N/A N/A N/A 0.35 ppb (4) N/A 3.1 μg/m3 (13) 35.0
 
Feb. 22, 2021, 11 a.m. 31.6 ppb (30) 11.9 ppb (12) N/A 20.0 ppb (19) N/A N/A N/A 0.3 ppb (4) N/A 4.6 μg/m3 (20) 30.0
 
Feb. 22, 2021, 10 a.m. 23.1 ppb (22) 4.5 ppb (5) N/A 19.0 ppb (18) N/A N/A N/A 0.25 ppb (3) N/A 1.6 μg/m3 (7) 22.0
 
Feb. 22, 2021, 9 a.m. 18.0 ppb (17) 1.9 ppb (2) N/A 16.0 ppb (16) N/A N/A N/A 0.22 ppb (3) N/A 4.8 μg/m3 (20) 20.0
 
Feb. 22, 2021, 8 a.m. 22.6 ppb (22) 3.0 ppb (3) N/A 20.0 ppb (19) N/A N/A N/A 0.22 ppb (3) N/A 9.9 μg/m3 (42) 42.0
 
Feb. 22, 2021, 7 a.m. 28.7 ppb (28) 3.4 ppb (4) N/A 25.0 ppb (24) N/A N/A N/A 0.32 ppb (4) N/A 9.8 μg/m3 (41) 41.0
 
Feb. 22, 2021, 6 a.m. 34.5 ppb (33) 4.9 ppb (5) N/A 30.0 ppb (29) N/A N/A N/A 0.38 ppb (5) N/A 12.1 μg/m3 (51) 51.0
 
Feb. 22, 2021, 5 a.m. 38.5 ppb (37) 7.1 ppb (7) N/A 31.0 ppb (30) N/A N/A N/A 0.35 ppb (4) N/A 20.9 μg/m3 (70) 70.0
 
Feb. 22, 2021, 4 a.m. 33.0 ppb (32) 5.1 ppb (5) N/A 28.0 ppb (27) N/A N/A N/A 0.31 ppb (4) N/A 17.0 μg/m3 (62) 62.0
 
Feb. 22, 2021, 3 a.m. 8.8 ppb (9) 0.3 ppb (1) N/A 9.0 ppb (9) N/A N/A N/A 0.21 ppb (3) N/A 16.6 μg/m3 (61) 61.0
 
Feb. 22, 2021, 2 a.m. 10.9 ppb (11) 0.3 ppb (1) N/A 11.0 ppb (11) N/A N/A N/A 0.23 ppb (3) N/A 19.7 μg/m3 (67) 67.0
 
Feb. 22, 2021, 1 a.m. 7.8 ppb (8) 0.3 ppb (1) N/A 8.0 ppb (8) N/A N/A N/A 0.23 ppb (3) N/A 21.9 μg/m3 (72) 72.0
 
Feb. 22, 2021, midnight 7.3 ppb (7) 0.3 ppb (1) N/A 7.0 ppb (7) N/A N/A N/A 0.24 ppb (3) N/A 17.6 μg/m3 (63) 63.0
 
Feb. 21, 2021, 11 p.m. 8.4 ppb (8) 0.6 ppb (1) N/A 8.0 ppb (8) N/A N/A N/A 0.24 ppb (3) N/A 15.5 μg/m3 (59) 59.0
 
Feb. 21, 2021, 10 p.m. 9.8 ppb (10) 1.1 ppb (2) N/A 9.0 ppb (9) N/A N/A N/A 0.25 ppb (3) N/A 17.0 μg/m3 (62) 62.0
 
Feb. 21, 2021, 9 p.m. 19.7 ppb (19) 6.2 ppb (6) N/A 14.0 ppb (14) N/A N/A N/A 0.32 ppb (4) N/A 12.8 μg/m3 (53) 53.0
 
Feb. 21, 2021, 8 p.m. 13.8 ppb (14) 4.6 ppb (5) N/A 9.0 ppb (9) N/A N/A N/A 0.29 ppb (4) N/A 14.2 μg/m3 (56) 56.0
 
Feb. 21, 2021, 7 p.m. 17.1 ppb (17) 6.3 ppb (6) N/A 11.0 ppb (11) N/A N/A N/A 0.28 ppb (4) N/A 12.3 μg/m3 (52) 52.0
 
Feb. 21, 2021, 6 p.m. 15.3 ppb (15) 5.2 ppb (5) N/A 10.0 ppb (10) N/A N/A N/A 0.28 ppb (4) N/A 8.8 μg/m3 (37) 37.0
 
Feb. 21, 2021, 5 p.m. 19.5 ppb (19) 8.0 ppb (8) N/A 12.0 ppb (12) N/A N/A N/A 0.28 ppb (4) N/A 10.4 μg/m3 (44) 44.0
 
Feb. 21, 2021, 4 p.m. 18.2 ppb (18) 8.0 ppb (8) N/A 10.0 ppb (10) N/A N/A N/A 0.26 ppb (4) N/A 11.8 μg/m3 (50) 50.0
 
Feb. 21, 2021, 3 p.m. 10.8 ppb (11) 4.9 ppb (5) N/A 6.0 ppb (6) N/A N/A N/A 0.24 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Feb. 21, 2021, 2 p.m. 9.5 ppb (9) 3.8 ppb (4) N/A 6.0 ppb (6) N/A N/A N/A 0.23 ppb (3) N/A 9.9 μg/m3 (42) 42.0
 
Feb. 21, 2021, 1 p.m. 7.3 ppb (7) 3.1 ppb (3) N/A 4.0 ppb (4) N/A N/A N/A 0.23 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Feb. 21, 2021, noon 6.1 ppb (6) 1.8 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A 0.22 ppb (3) N/A 13.7 μg/m3 (55) 55.0
 
Feb. 21, 2021, 11 a.m. 5.2 ppb (5) 1.2 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A 0.2 ppb (3) N/A 8.9 μg/m3 (38) 38.0
 
Feb. 21, 2021, 10 a.m. 4.6 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 9.6 μg/m3 (40) 40.0
 
Feb. 21, 2021, 9 a.m. 4.7 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.2 ppb (3) N/A 6.5 μg/m3 (28) 28.0
 
Feb. 21, 2021, 8 a.m. 7.8 ppb (8) 2.2 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A 0.21 ppb (3) N/A 8.3 μg/m3 (35) 35.0
 
Feb. 21, 2021, 7 a.m. 6.7 ppb (7) 1.7 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A 0.23 ppb (3) N/A 8.6 μg/m3 (36) 36.0
 
Feb. 21, 2021, 6 a.m. 7.4 ppb (7) 2.2 ppb (3) N/A 5.0 ppb (5) N/A N/A N/A 0.25 ppb (3) N/A 12.4 μg/m3 (52) 52.0
 
Feb. 21, 2021, 5 a.m. 12.8 ppb (13) 3.9 ppb (4) N/A 9.0 ppb (9) N/A N/A N/A 0.29 ppb (4) N/A 15.9 μg/m3 (59) 59.0
 
Feb. 21, 2021, 4 a.m. 24.3 ppb (23) 6.0 ppb (6) N/A 18.0 ppb (17) N/A N/A N/A 0.46 ppb (6) N/A 19.6 μg/m3 (67) 67.0
 
Feb. 21, 2021, 3 a.m. 29.4 ppb (28) 6.9 ppb (7) N/A 23.0 ppb (22) N/A N/A N/A 0.51 ppb (6) N/A 17.3 μg/m3 (62) 62.0
 
Feb. 21, 2021, 2 a.m. 37.6 ppb (36) 9.9 ppb (10) N/A 28.0 ppb (27) N/A N/A N/A 0.51 ppb (6) N/A 17.4 μg/m3 (63) 63.0
 
Feb. 21, 2021, 1 a.m. 38.4 ppb (37) 11.8 ppb (12) N/A 27.0 ppb (26) N/A N/A N/A 0.53 ppb (6) N/A 17.7 μg/m3 (63) 63.0
 
Feb. 21, 2021, midnight 38.6 ppb (37) 14.6 ppb (14) N/A 24.0 ppb (23) N/A N/A N/A 0.53 ppb (6) N/A 17.5 μg/m3 (63) 63.0
 
Feb. 20, 2021, 11 p.m. 28.2 ppb (27) 11.5 ppb (11) N/A 17.0 ppb (17) N/A N/A N/A 0.42 ppb (5) N/A 14.8 μg/m3 (57) 57.0
 
Feb. 20, 2021, 10 p.m. 26.5 ppb (25) 11.3 ppb (11) N/A 15.0 ppb (15) N/A N/A N/A 0.39 ppb (5) N/A 14.9 μg/m3 (57) 57.0
 
Feb. 20, 2021, 9 p.m. 26.7 ppb (26) 11.7 ppb (12) N/A 15.0 ppb (15) N/A N/A N/A 0.38 ppb (5) N/A 22.5 μg/m3 (73) 73.0
 
Feb. 20, 2021, 8 p.m. 27.6 ppb (27) 11.4 ppb (11) N/A 16.0 ppb (16) N/A N/A N/A 0.4 ppb (5) N/A 25.8 μg/m3 (80) 80.0
 
Feb. 20, 2021, 7 p.m. 30.3 ppb (29) 14.0 ppb (14) N/A 16.0 ppb (16) N/A N/A N/A 0.41 ppb (5) N/A 22.0 μg/m3 (72) 72.0
 
Feb. 20, 2021, 6 p.m. 25.0 ppb (24) 11.6 ppb (11) N/A 13.0 ppb (13) N/A N/A N/A 0.34 ppb (4) N/A 20.5 μg/m3 (69) 69.0
 
Feb. 20, 2021, 5 p.m. 21.4 ppb (21) 10.0 ppb (10) N/A 11.0 ppb (11) N/A N/A N/A 0.34 ppb (4) N/A 19.4 μg/m3 (67) 67.0
 
Feb. 20, 2021, 4 p.m. 21.4 ppb (21) 9.8 ppb (10) N/A 12.0 ppb (12) N/A N/A N/A 0.3 ppb (4) N/A 33.8 μg/m3 (97) 97.0
 
Feb. 20, 2021, 3 p.m. 30.1 ppb (29) 14.2 ppb (14) N/A 16.0 ppb (16) N/A N/A N/A 0.32 ppb (4) N/A 47.7 μg/m3 (132) 132.0
 
Feb. 20, 2021, 2 p.m. 28.4 ppb (27) 11.4 ppb (11) N/A 17.0 ppb (17) N/A N/A N/A 0.32 ppb (4) N/A 25.6 μg/m3 (80) 80.0
 
Feb. 20, 2021, 1 p.m. 31.9 ppb (31) 11.8 ppb (12) N/A 20.0 ppb (19) N/A N/A N/A 0.35 ppb (4) N/A 16.9 μg/m3 (62) 62.0
 
Feb. 20, 2021, noon 22.1 ppb (21) 7.6 ppb (8) N/A 15.0 ppb (15) N/A N/A N/A 0.28 ppb (4) N/A 21.1 μg/m3 (70) 70.0
 
Feb. 20, 2021, 11 a.m. 16.5 ppb (16) 4.1 ppb (4) N/A 12.0 ppb (12) N/A N/A N/A 0.25 ppb (3) N/A 22.3 μg/m3 (73) 73.0
 
Feb. 20, 2021, 10 a.m. 13.9 ppb (14) 2.2 ppb (3) N/A 12.0 ppb (12) N/A N/A N/A 0.23 ppb (3) N/A 23.0 μg/m3 (74) 74.0
 
Feb. 20, 2021, 9 a.m. 18.8 ppb (18) 5.6 ppb (6) N/A 13.0 ppb (13) N/A N/A N/A 0.24 ppb (3) N/A 22.6 μg/m3 (74) 74.0
 
Feb. 20, 2021, 8 a.m. 14.6 ppb (14) 3.1 ppb (3) N/A 12.0 ppb (12) N/A N/A N/A 0.23 ppb (3) N/A 17.2 μg/m3 (62) 62.0
 
Feb. 20, 2021, 7 a.m. 16.4 ppb (16) 3.8 ppb (4) N/A 13.0 ppb (13) N/A N/A N/A 0.24 ppb (3) N/A 21.1 μg/m3 (70) 70.0
 
Feb. 20, 2021, 6 a.m. 25.3 ppb (24) 7.6 ppb (8) N/A 18.0 ppb (17) N/A N/A N/A 0.29 ppb (4) N/A 21.3 μg/m3 (71) 71.0
 
Feb. 20, 2021, 5 a.m. 25.0 ppb (24) 6.7 ppb (7) N/A 18.0 ppb (17) N/A N/A N/A 0.32 ppb (4) N/A 18.8 μg/m3 (66) 66.0
 
Feb. 20, 2021, 4 a.m. 27.6 ppb (27) 8.7 ppb (9) N/A 19.0 ppb (18) N/A N/A N/A 0.31 ppb (4) N/A 17.7 μg/m3 (63) 63.0
 
Feb. 20, 2021, 3 a.m. 27.5 ppb (26) 9.3 ppb (9) N/A 18.0 ppb (17) N/A N/A N/A 0.35 ppb (4) N/A 17.4 μg/m3 (63) 63.0
 
Feb. 20, 2021, 2 a.m. 30.9 ppb (30) 11.4 ppb (11) N/A 20.0 ppb (19) N/A N/A N/A 0.39 ppb (5) N/A 15.8 μg/m3 (59) 59.0
 
Feb. 20, 2021, 1 a.m. 34.0 ppb (33) 13.1 ppb (13) N/A 21.0 ppb (20) N/A N/A N/A 0.36 ppb (5) N/A 18.3 μg/m3 (65) 65.0
 
Feb. 20, 2021, midnight 32.6 ppb (31) 13.0 ppb (13) N/A 20.0 ppb (19) N/A N/A N/A 0.36 ppb (5) N/A 14.7 μg/m3 (57) 57.0
 
Feb. 19, 2021, 11 p.m. 41.6 ppb (40) 20.7 ppb (20) N/A 21.0 ppb (20) N/A N/A N/A 0.41 ppb (5) N/A 18.8 μg/m3 (66) 66.0
 
Feb. 19, 2021, 10 p.m. 28.7 ppb (28) 13.4 ppb (13) N/A 15.0 ppb (15) N/A N/A N/A 0.32 ppb (4) N/A 16.6 μg/m3 (61) 61.0
 
Feb. 19, 2021, 9 p.m. 22.1 ppb (21) 9.9 ppb (10) N/A 12.0 ppb (12) N/A N/A N/A 0.28 ppb (4) N/A 15.2 μg/m3 (58) 58.0
 
Feb. 19, 2021, 8 p.m. 22.6 ppb (22) 12.1 ppb (12) N/A 11.0 ppb (11) N/A N/A N/A 0.27 ppb (4) N/A 13.4 μg/m3 (54) 54.0
 
Feb. 19, 2021, 7 p.m. 23.1 ppb (22) 12.9 ppb (13) N/A 10.0 ppb (10) N/A N/A N/A 0.26 ppb (4) N/A 15.0 μg/m3 (58) 58.0
 
Feb. 19, 2021, 6 p.m. 19.0 ppb (18) 9.8 ppb (10) N/A 9.0 ppb (9) N/A N/A N/A 0.26 ppb (4) N/A 12.1 μg/m3 (51) 51.0
 
Feb. 19, 2021, 5 p.m. 23.2 ppb (22) 12.8 ppb (13) N/A 10.0 ppb (10) N/A N/A N/A 0.26 ppb (4) N/A 15.4 μg/m3 (58) 58.0
 
Feb. 19, 2021, 4 p.m. 27.3 ppb (26) 14.5 ppb (14) N/A 13.0 ppb (13) N/A N/A N/A 0.27 ppb (4) N/A 26.8 μg/m3 (82) 82.0
 
Feb. 19, 2021, 3 p.m. 32.2 ppb (31) 17.6 ppb (17) N/A 15.0 ppb (15) N/A N/A N/A 0.29 ppb (4) N/A 33.7 μg/m3 (97) 97.0
 
Feb. 19, 2021, 2 p.m. 39.9 ppb (38) 19.0 ppb (18) N/A 21.0 ppb (20) N/A N/A N/A 0.35 ppb (4) N/A 24.6 μg/m3 (78) 78.0
 
Feb. 19, 2021, 1 p.m. 52.8 ppb (50) 20.7 ppb (20) N/A 32.0 ppb (31) N/A N/A N/A 0.47 ppb (6) N/A 17.2 μg/m3 (62) 62.0
 
Feb. 19, 2021, noon 69.2 ppb (68) 29.9 ppb (29) N/A 39.0 ppb (37) N/A N/A N/A 0.52 ppb (6) N/A 2.7 μg/m3 (12) 68.0
 
Feb. 19, 2021, 11 a.m. 70.5 ppb (69) 30.0 ppb (29) N/A 41.0 ppb (39) N/A N/A N/A 0.5 ppb (6) N/A 14.2 μg/m3 (56) 69.0
 
Feb. 19, 2021, 10 a.m. 74.7 ppb (74) 30.8 ppb (30) N/A 44.0 ppb (42) N/A N/A N/A 0.45 ppb (6) N/A 21.6 μg/m3 (71) 74.0
 
Feb. 19, 2021, 9 a.m. 64.4 ppb (63) 23.3 ppb (22) N/A 41.0 ppb (39) N/A N/A N/A 0.57 ppb (7) N/A 16.3 μg/m3 (60) 63.0