AQSQID: 295100085

Site Name: Blair Street

Location: St. Louis (Buchanan St), MO

Reporting: True, Located: True

Current AQI: 56.0

St. Louis (Buchanan St) MO, US: 38.656449, -90.198548

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Nov. 21, 2019, 1 p.m. 13.1 ppb (12) 1.1 ppb (1) 13.3 ppb (12) 12.0 ppb (11) N/A 1.0 ppb (1) 25.0 ppb (19) 0.03 ppb (0) N/A 14.8 μg/m3 (56) 56.0
 
Nov. 21, 2019, noon 11.4 ppb (11) 0.3 ppb (0) 11.7 ppb (11) 11.0 ppb (10) N/A 0.0 ppb (0) 23.0 ppb (18) 0.01 ppb (0) N/A 9.7 μg/m3 (40) 40.0
 
Nov. 21, 2019, 11 a.m. 7.0 ppb (6) 0.3 ppb (0) 7.4 ppb (7) 7.0 ppb (6) N/A N/A 25.0 ppb (19) 0.14 ppb (2) N/A 10.8 μg/m3 (45) 45.0
 
Nov. 21, 2019, 10 a.m. 7.3 ppb (7) 0.3 ppb (0) 7.5 ppb (7) 7.0 ppb (6) N/A N/A 26.0 ppb (20) 0.13 ppb (1) N/A 12.0 μg/m3 (50) 50.0
 
Nov. 21, 2019, 9 a.m. 4.8 ppb (4) 0.3 ppb (0) 5.3 ppb (5) 5.0 ppb (5) N/A 1.0 ppb (1) 28.0 ppb (22) 0.13 ppb (1) N/A 11.2 μg/m3 (47) 47.0
 
Nov. 21, 2019, 8 a.m. 7.1 ppb (7) 0.3 ppb (0) 7.6 ppb (7) 7.0 ppb (6) N/A 1.0 ppb (1) 25.0 ppb (19) 0.13 ppb (1) N/A 10.9 μg/m3 (45) 45.0
 
Nov. 21, 2019, 7 a.m. 9.7 ppb (9) 0.3 ppb (0) 10.1 ppb (9) 10.0 ppb (9) N/A 1.0 ppb (1) 23.0 ppb (18) 0.13 ppb (1) N/A 5.7 μg/m3 (24) 24.0
 
Nov. 21, 2019, 6 a.m. 6.9 ppb (6) 0.3 ppb (0) 7.5 ppb (7) 7.0 ppb (6) N/A 1.0 ppb (1) 26.0 ppb (20) 0.13 ppb (1) N/A 8.9 μg/m3 (37) 37.0
 
Nov. 21, 2019, 5 a.m. 10.6 ppb (10) 0.3 ppb (0) 11.0 ppb (10) 11.0 ppb (10) N/A 1.0 ppb (1) 22.0 ppb (17) 0.15 ppb (2) N/A 7.6 μg/m3 (32) 32.0
 
Nov. 21, 2019, 4 a.m. 6.9 ppb (6) 0.3 ppb (0) 7.7 ppb (7) 7.0 ppb (6) N/A 2.0 ppb (3) 24.0 ppb (18) 0.16 ppb (2) N/A 14.3 μg/m3 (55) 55.0
 
Nov. 21, 2019, 3 a.m. 8.5 ppb (8) 0.3 ppb (0) 9.2 ppb (9) 8.0 ppb (7) N/A 3.0 ppb (4) 23.0 ppb (18) 0.16 ppb (2) N/A 16.3 μg/m3 (59) 59.0
 
Nov. 21, 2019, 2 a.m. 10.4 ppb (10) 0.4 ppb (0) 10.8 ppb (10) 10.0 ppb (9) N/A 2.0 ppb (3) 21.0 ppb (16) 0.15 ppb (2) N/A 13.8 μg/m3 (54) 54.0
 
Nov. 21, 2019, 1 a.m. 15.3 ppb (14) 0.7 ppb (1) 15.0 ppb (14) 15.0 ppb (14) N/A 1.0 ppb (1) 19.0 ppb (15) 0.16 ppb (2) N/A 14.2 μg/m3 (55) 55.0
 
Nov. 21, 2019, midnight 23.2 ppb (21) 2.0 ppb (2) 22.9 ppb (21) 21.0 ppb (19) N/A 1.0 ppb (1) 13.0 ppb (10) 0.19 ppb (2) N/A 0.0 μg/m3 (0) 21.0
 
Nov. 20, 2019, 11 p.m. 18.8 ppb (17) 2.3 ppb (2) 17.6 ppb (16) 17.0 ppb (16) N/A 1.0 ppb (1) 19.0 ppb (15) 0.24 ppb (3) N/A 0.0 μg/m3 (0) 17.0
 
Nov. 20, 2019, 10 p.m. 21.2 ppb (20) 3.0 ppb (3) N/A 18.0 ppb (17) N/A 1.0 ppb (1) 19.0 ppb (15) 0.24 ppb (3) N/A N/A 20.0
 
Nov. 20, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 17.0 ppb (13) N/A N/A N/A 13.0
 
Nov. 20, 2019, 8 p.m. 18.3 ppb (17) 6.3 ppb (6) N/A 12.0 ppb (11) N/A 2.0 ppb (3) 20.0 ppb (15) N/A N/A N/A 17.0
 
Nov. 20, 2019, 7 p.m. 20.1 ppb (19) 8.3 ppb (8) N/A 12.0 ppb (11) N/A 3.0 ppb (4) N/A N/A N/A N/A 19.0
 
Nov. 20, 2019, 6 p.m. 13.4 ppb (12) 4.6 ppb (4) N/A 9.0 ppb (8) N/A 2.0 ppb (3) N/A N/A N/A N/A 12.0
 
Nov. 20, 2019, 5 p.m. 13.1 ppb (12) 5.9 ppb (5) 15.7 ppb (15) 7.0 ppb (6) N/A 1.0 ppb (1) 18.0 ppb (14) 0.03 ppb (0) N/A N/A 15.0
 
Nov. 20, 2019, 4 p.m. 12.4 ppb (11) 5.7 ppb (5) 14.2 ppb (13) 7.0 ppb (6) N/A 1.0 ppb (1) 17.0 ppb (13) 0.02 ppb (0) N/A N/A 13.0
 
Nov. 20, 2019, 3 p.m. 20.3 ppb (19) 9.7 ppb (9) 22.3 ppb (21) 11.0 ppb (10) N/A 1.0 ppb (1) 14.0 ppb (11) 0.04 ppb (0) N/A N/A 21.0
 
Nov. 20, 2019, 2 p.m. 31.6 ppb (29) 14.6 ppb (14) 31.9 ppb (30) 17.0 ppb (16) N/A 0.0 ppb (0) 8.0 ppb (6) 0.05 ppb (1) N/A N/A 30.0
 
Nov. 20, 2019, 1 p.m. 58.1 ppb (54) 33.5 ppb (31) 55.2 ppb (51) 25.0 ppb (23) N/A 0.0 ppb (0) 3.0 ppb (2) 0.03 ppb (0) N/A N/A 54.0
 
Nov. 20, 2019, noon 131.3 ppb (106) 102.7 ppb (100) 132.7 ppb (106) 29.0 ppb (27) N/A 1.0 ppb (1) 0.0 ppb (0) 0.0 ppb (0) N/A N/A 106.0
 
Nov. 20, 2019, 11 a.m. 87.0 ppb (85) 61.7 ppb (58) 92.1 ppb (91) 25.0 ppb (23) N/A 0.0 ppb (0) 0.0 ppb (0) 0.3 ppb (3) N/A N/A 91.0
 
Nov. 20, 2019, 10 a.m. 62.6 ppb (59) 39.4 ppb (36) 67.9 ppb (65) 23.0 ppb (21) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A N/A 65.0
 
Nov. 20, 2019, 9 a.m. 47.1 ppb (44) 24.7 ppb (23) 54.1 ppb (50) 23.0 ppb (21) N/A 0.0 ppb (0) 0.0 ppb (0) 0.29 ppb (3) N/A N/A 50.0
 
Nov. 20, 2019, 8 a.m. 48.2 ppb (45) 25.0 ppb (23) 46.9 ppb (43) 23.0 ppb (21) N/A 0.0 ppb (0) 0.0 ppb (0) 0.27 ppb (3) N/A N/A 45.0
 
Nov. 20, 2019, 7 a.m. 55.2 ppb (51) 30.9 ppb (29) 51.7 ppb (48) 24.0 ppb (22) N/A 0.0 ppb (0) 0.0 ppb (0) 0.28 ppb (3) N/A N/A 51.0
 
Nov. 20, 2019, 6 a.m. 59.7 ppb (56) 36.4 ppb (34) 73.9 ppb (71) 23.0 ppb (21) N/A 0.0 ppb (0) 0.0 ppb (0) 0.36 ppb (4) N/A N/A 71.0
 
Nov. 20, 2019, 5 a.m. 50.9 ppb (47) 25.5 ppb (24) 51.2 ppb (47) 25.0 ppb (23) N/A 0.0 ppb (0) 0.0 ppb (0) 0.38 ppb (4) N/A N/A 47.0
 
Nov. 20, 2019, 4 a.m. 55.5 ppb (52) 28.0 ppb (26) 55.4 ppb (51) 27.0 ppb (25) N/A 0.0 ppb (0) 0.0 ppb (0) 0.4 ppb (4) N/A N/A 52.0
 
Nov. 20, 2019, 3 a.m. 100.0 ppb (99) 70.0 ppb (67) 96.6 ppb (95) 30.0 ppb (28) N/A 1.0 ppb (1) 0.0 ppb (0) 0.66 ppb (7) N/A N/A 99.0
 
Nov. 20, 2019, 2 a.m. 122.5 ppb (104) 95.5 ppb (94) 140.5 ppb (108) 27.0 ppb (25) N/A 1.0 ppb (1) 0.0 ppb (0) 1.15 ppb (13) N/A N/A 108.0
 
Nov. 20, 2019, 1 a.m. 91.2 ppb (90) 64.0 ppb (61) 100.8 ppb (100) 27.0 ppb (25) N/A 1.0 ppb (1) N/A 1.15 ppb (13) N/A N/A 100.0
 
Nov. 20, 2019, midnight 61.0 ppb (57) 31.5 ppb (29) 63.7 ppb (60) 30.0 ppb (28) N/A 0.0 ppb (0) 0.0 ppb (0) 0.72 ppb (8) N/A N/A 60.0
 
Nov. 19, 2019, 11 p.m. 26.3 ppb (24) 4.3 ppb (4) 22.0 ppb (20) 22.0 ppb (20) N/A 0.0 ppb (0) 8.0 ppb (6) 0.45 ppb (5) N/A N/A 24.0
 
Nov. 19, 2019, 10 p.m. 8.3 ppb (8) 1.2 ppb (1) 7.5 ppb (7) 8.0 ppb (7) N/A 0.0 ppb (0) 24.0 ppb (18) 0.2 ppb (2) N/A N/A 18.0
 
Nov. 19, 2019, 9 p.m. 12.6 ppb (12) 3.9 ppb (4) 6.2 ppb (6) 9.0 ppb (8) N/A 0.0 ppb (0) 27.0 ppb (21) 0.15 ppb (2) N/A N/A 21.0
 
Nov. 19, 2019, 8 p.m. 4.5 ppb (4) 1.3 ppb (1) 4.3 ppb (4) 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (22) 0.13 ppb (1) N/A N/A 22.0
 
Nov. 19, 2019, 7 p.m. 6.1 ppb (6) 3.2 ppb (3) 6.4 ppb (6) 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (20) 0.15 ppb (2) N/A N/A 20.0
 
Nov. 19, 2019, 6 p.m. 4.0 ppb (4) 2.1 ppb (2) 5.0 ppb (5) 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (19) 0.14 ppb (2) N/A N/A 19.0
 
Nov. 19, 2019, 5 p.m. 9.9 ppb (9) 5.4 ppb (5) 8.6 ppb (8) 5.0 ppb (5) N/A 0.0 ppb (0) 21.0 ppb (16) 0.17 ppb (2) N/A N/A 16.0
 
Nov. 19, 2019, 4 p.m. 8.3 ppb (8) 4.6 ppb (4) 8.8 ppb (8) 4.0 ppb (4) N/A 0.0 ppb (0) 16.0 ppb (12) 0.19 ppb (2) N/A N/A 12.0
 
Nov. 19, 2019, 3 p.m. 10.8 ppb (10) 5.3 ppb (5) 10.5 ppb (10) 6.0 ppb (6) N/A 0.0 ppb (0) 12.0 ppb (9) 0.19 ppb (2) N/A N/A 10.0
 
Nov. 19, 2019, 2 p.m. 11.2 ppb (10) 4.4 ppb (4) 9.5 ppb (9) 7.0 ppb (6) N/A 0.0 ppb (0) 10.0 ppb (8) 0.22 ppb (2) N/A N/A 10.0
 
Nov. 19, 2019, 1 p.m. 11.2 ppb (10) 2.5 ppb (2) 10.8 ppb (10) 9.0 ppb (8) N/A 0.0 ppb (0) 12.0 ppb (9) 0.24 ppb (3) N/A N/A 10.0
 
Nov. 19, 2019, noon 15.7 ppb (15) 1.4 ppb (1) 15.2 ppb (14) 14.0 ppb (13) N/A 0.0 ppb (0) 11.0 ppb (8) 0.21 ppb (2) N/A N/A 15.0
 
Nov. 19, 2019, 11 a.m. 16.7 ppb (15) 0.8 ppb (1) 17.2 ppb (16) 16.0 ppb (15) N/A N/A 6.0 ppb (5) 0.23 ppb (3) N/A N/A 16.0
 
Nov. 19, 2019, 10 a.m. 17.8 ppb (16) 1.2 ppb (1) 16.9 ppb (16) 17.0 ppb (16) N/A N/A 7.0 ppb (5) 0.24 ppb (3) N/A N/A 16.0
 
Nov. 19, 2019, 9 a.m. 15.6 ppb (14) 0.7 ppb (1) 15.0 ppb (14) 15.0 ppb (14) N/A 0.0 ppb (0) 8.0 ppb (6) 0.22 ppb (2) N/A N/A 14.0
 
Nov. 19, 2019, 8 a.m. 18.2 ppb (17) 0.5 ppb (0) 17.8 ppb (16) 18.0 ppb (17) N/A 1.0 ppb (1) 8.0 ppb (6) 0.16 ppb (2) N/A N/A 17.0
 
Nov. 19, 2019, 7 a.m. 14.2 ppb (13) 0.3 ppb (0) 14.0 ppb (13) 14.0 ppb (13) N/A 1.0 ppb (1) 12.0 ppb (9) 0.15 ppb (2) N/A N/A 13.0
 
Nov. 19, 2019, 6 a.m. 18.1 ppb (17) 1.5 ppb (1) 17.7 ppb (16) 17.0 ppb (16) N/A 1.0 ppb (1) 10.0 ppb (8) 0.17 ppb (2) N/A N/A 17.0
 
Nov. 19, 2019, 5 a.m. 16.9 ppb (16) 1.4 ppb (1) 17.6 ppb (16) 16.0 ppb (15) N/A 1.0 ppb (1) 11.0 ppb (8) 0.19 ppb (2) N/A N/A 16.0
 
Nov. 19, 2019, 4 a.m. 18.1 ppb (17) 1.1 ppb (1) 17.9 ppb (17) 17.0 ppb (16) N/A 1.0 ppb (1) 11.0 ppb (8) 0.19 ppb (2) N/A N/A 17.0
 
Nov. 19, 2019, 3 a.m. 12.4 ppb (11) 0.7 ppb (1) 13.0 ppb (12) 12.0 ppb (11) N/A 1.0 ppb (1) 16.0 ppb (12) 0.2 ppb (2) N/A N/A 12.0
 
Nov. 19, 2019, 2 a.m. 16.1 ppb (15) 0.4 ppb (0) 16.8 ppb (16) 16.0 ppb (15) N/A 2.0 ppb (3) 14.0 ppb (11) 0.2 ppb (2) N/A N/A 16.0
 
Nov. 19, 2019, 1 a.m. 24.4 ppb (23) 2.0 ppb (2) 24.8 ppb (23) 23.0 ppb (21) N/A 2.0 ppb (3) 8.0 ppb (6) 0.24 ppb (3) N/A N/A 23.0
 
Nov. 19, 2019, midnight 33.6 ppb (31) 6.2 ppb (6) 32.2 ppb (30) 28.0 ppb (26) N/A 1.0 ppb (1) 7.0 ppb (5) 0.23 ppb (3) N/A N/A 31.0
 
Nov. 18, 2019, 11 p.m. 49.4 ppb (46) 14.3 ppb (13) 48.9 ppb (45) 35.0 ppb (32) N/A 1.0 ppb (1) 2.0 ppb (2) 0.33 ppb (4) N/A N/A 46.0
 
Nov. 18, 2019, 10 p.m. 34.2 ppb (32) 7.0 ppb (6) 32.5 ppb (30) 27.0 ppb (25) N/A 1.0 ppb (1) 8.0 ppb (6) 0.26 ppb (3) N/A N/A 32.0
 
Nov. 18, 2019, 9 p.m. 24.4 ppb (23) 6.1 ppb (6) 25.6 ppb (24) 18.0 ppb (17) N/A 3.0 ppb (4) 14.0 ppb (11) 0.22 ppb (2) N/A N/A 24.0
 
Nov. 18, 2019, 8 p.m. 11.6 ppb (11) 2.9 ppb (3) 13.3 ppb (12) 9.0 ppb (8) N/A 4.0 ppb (6) 22.0 ppb (17) 0.19 ppb (2) N/A N/A 17.0
 
Nov. 18, 2019, 7 p.m. 13.3 ppb (12) 3.8 ppb (4) 14.6 ppb (14) 10.0 ppb (9) N/A 0.0 ppb (0) 21.0 ppb (16) 0.2 ppb (2) N/A N/A 16.0
 
Nov. 18, 2019, 6 p.m. 20.9 ppb (19) 7.5 ppb (7) 24.2 ppb (22) 14.0 ppb (13) N/A 0.0 ppb (0) 16.0 ppb (12) 0.23 ppb (3) N/A N/A 22.0
 
Nov. 18, 2019, 5 p.m. 18.6 ppb (17) 8.8 ppb (8) 20.8 ppb (19) 10.0 ppb (9) N/A 0.0 ppb (0) 17.0 ppb (13) 0.23 ppb (3) N/A N/A 19.0
 
Nov. 18, 2019, 4 p.m. 20.5 ppb (19) 10.5 ppb (10) 22.6 ppb (21) 10.0 ppb (9) N/A 0.0 ppb (0) 14.0 ppb (11) 0.21 ppb (2) N/A N/A 21.0
 
Nov. 18, 2019, 3 p.m. 13.6 ppb (13) 5.9 ppb (5) 13.8 ppb (13) 8.0 ppb (7) N/A 0.0 ppb (0) 15.0 ppb (12) 0.23 ppb (3) N/A N/A 13.0
 
Nov. 18, 2019, 2 p.m. 24.4 ppb (23) 11.6 ppb (11) 24.9 ppb (23) 13.0 ppb (12) N/A 0.0 ppb (0) 10.0 ppb (8) 0.35 ppb (4) N/A N/A 23.0
 
Nov. 18, 2019, 1 p.m. 47.9 ppb (44) 29.1 ppb (27) 42.7 ppb (40) 19.0 ppb (18) N/A 0.0 ppb (0) 1.0 ppb (1) 0.52 ppb (6) N/A N/A 44.0
 
Nov. 18, 2019, noon 30.6 ppb (28) 12.5 ppb (12) 30.0 ppb (28) 18.0 ppb (17) N/A 0.0 ppb (0) 1.0 ppb (1) 0.36 ppb (4) N/A N/A 28.0
 
Nov. 18, 2019, 11 a.m. 12.8 ppb (12) 0.6 ppb (1) 14.7 ppb (14) 12.0 ppb (11) N/A 0.0 ppb (0) 7.0 ppb (5) 0.2 ppb (2) N/A N/A 14.0
 
Nov. 18, 2019, 10 a.m. 9.1 ppb (8) 0.3 ppb (0) 10.2 ppb (9) 9.0 ppb (8) N/A 0.0 ppb (0) 12.0 ppb (9) N/A N/A N/A 9.0
 
Nov. 18, 2019, 9 a.m. 6.6 ppb (6) 0.2 ppb (0) 7.8 ppb (7) 6.0 ppb (6) N/A 0.0 ppb (0) 14.0 ppb (11) 0.18 ppb (2) N/A N/A 11.0
 
Nov. 18, 2019, 8 a.m. 6.3 ppb (6) 0.3 ppb (0) 7.3 ppb (7) 6.0 ppb (6) N/A 0.0 ppb (0) 15.0 ppb (12) 0.17 ppb (2) N/A N/A 12.0
 
Nov. 18, 2019, 7 a.m. 5.8 ppb (5) 0.2 ppb (0) 7.1 ppb (7) 6.0 ppb (6) N/A 0.0 ppb (0) 15.0 ppb (12) 0.18 ppb (2) N/A N/A 12.0
 
Nov. 18, 2019, 6 a.m. 6.0 ppb (6) 0.4 ppb (0) 7.5 ppb (7) 6.0 ppb (6) N/A 0.0 ppb (0) 15.0 ppb (12) 0.19 ppb (2) N/A N/A 12.0
 
Nov. 18, 2019, 5 a.m. 6.8 ppb (6) 0.3 ppb (0) 8.4 ppb (8) 7.0 ppb (6) N/A 0.0 ppb (0) 15.0 ppb (12) 0.15 ppb (2) N/A N/A 12.0
 
Nov. 18, 2019, 4 a.m. 5.7 ppb (5) 0.3 ppb (0) 7.4 ppb (7) 6.0 ppb (6) N/A 0.0 ppb (0) 17.0 ppb (13) 0.15 ppb (2) N/A N/A 13.0
 
Nov. 18, 2019, 3 a.m. 8.2 ppb (8) 0.5 ppb (0) 9.6 ppb (9) 8.0 ppb (7) N/A 0.0 ppb (0) 17.0 ppb (13) 0.19 ppb (2) N/A N/A 13.0
 
Nov. 18, 2019, 2 a.m. 7.4 ppb (7) 0.3 ppb (0) 8.9 ppb (8) 7.0 ppb (6) N/A 0.0 ppb (0) 19.0 ppb (15) 0.2 ppb (2) N/A N/A 15.0
 
Nov. 18, 2019, 1 a.m. 9.8 ppb (9) 0.3 ppb (0) 11.0 ppb (10) 10.0 ppb (9) N/A 0.0 ppb (0) 18.0 ppb (14) 0.22 ppb (2) N/A N/A 14.0
 
Nov. 18, 2019, midnight 18.6 ppb (17) 3.3 ppb (3) 18.5 ppb (17) 16.0 ppb (15) N/A 1.0 ppb (1) 14.0 ppb (11) 0.27 ppb (3) N/A N/A 17.0
 
Nov. 17, 2019, 11 p.m. 30.8 ppb (29) 8.1 ppb (8) 28.0 ppb (26) 24.0 ppb (22) N/A 1.0 ppb (1) 4.0 ppb (3) 0.46 ppb (5) N/A N/A 29.0
 
Nov. 17, 2019, 10 p.m. 16.2 ppb (15) 2.0 ppb (2) 16.7 ppb (15) 14.0 ppb (13) N/A 1.0 ppb (1) 14.0 ppb (11) 0.29 ppb (3) N/A N/A 15.0
 
Nov. 17, 2019, 9 p.m. 12.8 ppb (12) 1.9 ppb (2) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 17.0 ppb (13) 0.25 ppb (3) N/A N/A 13.0
 
Nov. 17, 2019, 8 p.m. 11.1 ppb (10) 2.2 ppb (2) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 18.0 ppb (14) 0.22 ppb (2) N/A N/A 14.0
 
Nov. 17, 2019, 7 p.m. 13.2 ppb (12) 3.3 ppb (3) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 19.0 ppb (15) 0.22 ppb (2) N/A N/A 15.0
 
Nov. 17, 2019, 6 p.m. 9.2 ppb (9) 3.1 ppb (3) 14.2 ppb (13) 6.0 ppb (6) N/A 1.0 ppb (1) 22.0 ppb (17) 0.21 ppb (2) N/A N/A 17.0
 
Nov. 17, 2019, 5 p.m. 15.2 ppb (14) 5.8 ppb (5) 20.8 ppb (19) 10.0 ppb (9) N/A 1.0 ppb (1) 15.0 ppb (12) 0.2 ppb (2) N/A N/A 19.0
 
Nov. 17, 2019, 4 p.m. 14.8 ppb (14) 4.6 ppb (4) 20.5 ppb (19) 10.0 ppb (9) N/A 2.0 ppb (3) 12.0 ppb (9) 0.19 ppb (2) N/A N/A 19.0
 
Nov. 17, 2019, 3 p.m. 21.5 ppb (20) 8.5 ppb (8) 27.8 ppb (26) 13.0 ppb (12) N/A 2.0 ppb (3) 9.0 ppb (7) 0.21 ppb (2) N/A N/A 26.0
 
Nov. 17, 2019, 2 p.m. 18.3 ppb (17) 5.4 ppb (5) 24.4 ppb (23) 13.0 ppb (12) N/A 1.0 ppb (1) 7.0 ppb (5) 0.23 ppb (3) N/A N/A 23.0
 
Nov. 17, 2019, 1 p.m. 31.7 ppb (29) 11.8 ppb (11) 36.6 ppb (34) 20.0 ppb (19) N/A 1.0 ppb (1) 2.0 ppb (2) 0.24 ppb (3) N/A N/A 34.0
 
Nov. 17, 2019, noon 51.7 ppb (48) 27.1 ppb (25) 58.2 ppb (54) 25.0 ppb (23) N/A 1.0 ppb (1) 0.0 ppb (0) 0.24 ppb (3) N/A N/A 54.0
 
Nov. 17, 2019, 11 a.m. 74.8 ppb (72) 47.2 ppb (44) 82.3 ppb (80) 28.0 ppb (26) N/A N/A 0.0 ppb (0) 0.3 ppb (3) N/A N/A 80.0
 
Nov. 17, 2019, 10 a.m. 60.8 ppb (57) 34.9 ppb (32) 69.8 ppb (67) 26.0 ppb (24) N/A N/A 0.0 ppb (0) 0.29 ppb (3) N/A N/A 67.0
 
Nov. 17, 2019, 9 a.m. 38.5 ppb (36) 15.4 ppb (14) 47.7 ppb (44) 23.0 ppb (21) N/A 0.0 ppb (0) 1.0 ppb (1) 0.28 ppb (3) N/A N/A 44.0
 
Nov. 17, 2019, 8 a.m. 21.1 ppb (20) 2.8 ppb (3) 23.9 ppb (22) 18.0 ppb (17) N/A 0.0 ppb (0) N/A 0.22 ppb (2) N/A N/A 22.0
 
Nov. 17, 2019, 7 a.m. 30.6 ppb (28) 7.5 ppb (7) 35.1 ppb (32) 23.0 ppb (21) N/A 0.0 ppb (0) 3.0 ppb (2) 0.27 ppb (3) N/A N/A 32.0
 
Nov. 17, 2019, 6 a.m. 11.9 ppb (11) 0.8 ppb (1) 15.2 ppb (14) 11.0 ppb (10) N/A 0.0 ppb (0) 14.0 ppb (11) 0.19 ppb (2) N/A N/A 14.0
 
Nov. 17, 2019, 5 a.m. 28.1 ppb (26) 4.3 ppb (4) 30.8 ppb (29) 24.0 ppb (22) N/A 0.0 ppb (0) 4.0 ppb (3) 0.32 ppb (4) N/A N/A 29.0
 
Nov. 17, 2019, 4 a.m. 43.6 ppb (40) 15.2 ppb (14) 46.2 ppb (43) 29.0 ppb (27) N/A 0.0 ppb (0) 1.0 ppb (1) 0.37 ppb (4) N/A N/A 43.0
 
Nov. 17, 2019, 3 a.m. 46.7 ppb (43) 17.5 ppb (16) 51.0 ppb (47) 29.0 ppb (27) N/A 0.0 ppb (0) 2.0 ppb (2) 0.3 ppb (3) N/A N/A 47.0
 
Nov. 17, 2019, 2 a.m. 48.6 ppb (45) 17.9 ppb (17) 52.7 ppb (49) 31.0 ppb (29) N/A 0.0 ppb (0) 2.0 ppb (2) 0.34 ppb (4) N/A N/A 49.0
 
Nov. 17, 2019, 1 a.m. 51.7 ppb (48) 19.2 ppb (18) 56.3 ppb (52) 33.0 ppb (31) N/A 0.0 ppb (0) 1.0 ppb (1) 0.36 ppb (4) N/A N/A 52.0
 
Nov. 17, 2019, midnight 31.5 ppb (29) 5.7 ppb (5) 33.9 ppb (31) 26.0 ppb (24) N/A 0.0 ppb (0) 7.0 ppb (5) 0.3 ppb (3) N/A N/A 31.0
 
Nov. 16, 2019, 11 p.m. 28.5 ppb (26) 5.4 ppb (5) 29.8 ppb (28) 23.0 ppb (21) N/A 0.0 ppb (0) 10.0 ppb (8) 0.3 ppb (3) N/A N/A 28.0
 
Nov. 16, 2019, 10 p.m. 15.4 ppb (14) 3.1 ppb (3) 17.6 ppb (16) 13.0 ppb (12) N/A 0.0 ppb (0) 20.0 ppb (15) 0.23 ppb (3) N/A N/A 16.0
 
Nov. 16, 2019, 9 p.m. 9.9 ppb (9) 2.5 ppb (2) 14.2 ppb (13) 8.0 ppb (7) N/A 0.0 ppb (0) 26.0 ppb (20) 0.21 ppb (2) N/A N/A 20.0
 
Nov. 16, 2019, 8 p.m. 10.6 ppb (10) 3.1 ppb (3) 15.5 ppb (14) 8.0 ppb (7) N/A 1.0 ppb (1) 25.0 ppb (19) 0.2 ppb (2) N/A N/A 19.0
 
Nov. 16, 2019, 7 p.m. 7.4 ppb (7) 2.3 ppb (2) 11.8 ppb (11) 5.0 ppb (5) N/A 2.0 ppb (3) 27.0 ppb (21) 0.23 ppb (3) N/A N/A 21.0
 
Nov. 16, 2019, 6 p.m. 7.1 ppb (7) 2.6 ppb (2) 12.2 ppb (11) 5.0 ppb (5) N/A 2.0 ppb (3) 27.0 ppb (21) 0.22 ppb (2) N/A N/A 21.0
 
Nov. 16, 2019, 5 p.m. 13.6 ppb (13) 5.6 ppb (5) 17.9 ppb (17) 8.0 ppb (7) N/A 1.0 ppb (1) 21.0 ppb (16) 0.08 ppb (1) N/A N/A 17.0
 
Nov. 16, 2019, 4 p.m. 18.6 ppb (17) 8.8 ppb (8) 23.9 ppb (22) 10.0 ppb (9) N/A 1.0 ppb (1) 17.0 ppb (13) 0.1 ppb (1) N/A N/A 22.0
 
Nov. 16, 2019, 3 p.m. 26.3 ppb (24) 12.4 ppb (11) 29.6 ppb (27) 14.0 ppb (13) N/A 1.0 ppb (1) 13.0 ppb (10) 0.11 ppb (1) N/A N/A 27.0
 
Nov. 16, 2019, 2 p.m. 26.2 ppb (24) 11.4 ppb (11) 31.5 ppb (29) 15.0 ppb (14) N/A 0.0 ppb (0) 11.0 ppb (8) 0.14 ppb (2) N/A N/A 29.0
 
Nov. 16, 2019, 1 p.m. 59.4 ppb (56) 35.9 ppb (33) 60.7 ppb (57) 24.0 ppb (22) N/A 0.0 ppb (0) 2.0 ppb (2) 0.37 ppb (4) N/A N/A 57.0
 
Nov. 16, 2019, noon 84.4 ppb (82) 61.2 ppb (58) 82.3 ppb (80) 23.0 ppb (21) N/A 0.0 ppb (0) 0.0 ppb (0) 0.71 ppb (8) N/A N/A 82.0
 
Nov. 16, 2019, 11 a.m. 100.7 ppb (100) 75.4 ppb (73) 98.1 ppb (97) 25.0 ppb (23) N/A 1.0 ppb (1) 0.0 ppb (0) 0.82 ppb (9) N/A N/A 100.0
 
Nov. 16, 2019, 10 a.m. 132.0 ppb (106) 105.0 ppb (101) 128.8 ppb (105) 27.0 ppb (25) N/A 1.0 ppb (1) 0.0 ppb (0) N/A N/A N/A 106.0
 
Nov. 16, 2019, 9 a.m. 154.5 ppb (110) 127.2 ppb (105) 162.0 ppb (112) 27.0 ppb (25) N/A 1.0 ppb (1) 0.0 ppb (0) 1.5 ppb (17) N/A N/A 112.0
 
Nov. 16, 2019, 8 a.m. 157.4 ppb (111) 130.0 ppb (106) 167.4 ppb (113) 28.0 ppb (26) N/A 1.0 ppb (1) 0.0 ppb (0) 1.75 ppb (19) N/A N/A 113.0
 
Nov. 16, 2019, 7 a.m. 155.3 ppb (110) 127.6 ppb (105) 165.1 ppb (112) 28.0 ppb (26) N/A 1.0 ppb (1) 1.0 ppb (1) 1.81 ppb (20) N/A N/A 112.0
 
Nov. 16, 2019, 6 a.m. 134.8 ppb (106) 105.7 ppb (101) 144.2 ppb (108) 29.0 ppb (27) N/A 1.0 ppb (1) 1.0 ppb (1) 1.45 ppb (16) N/A N/A 108.0
 
Nov. 16, 2019, 5 a.m. 139.1 ppb (107) 108.8 ppb (102) 147.1 ppb (109) 30.0 ppb (28) N/A 1.0 ppb (1) 1.0 ppb (1) 1.81 ppb (20) N/A N/A 109.0
 
Nov. 16, 2019, 4 a.m. 135.4 ppb (107) 103.9 ppb (101) 141.9 ppb (108) 32.0 ppb (30) N/A 1.0 ppb (1) 1.0 ppb (1) 1.97 ppb (22) N/A N/A 108.0
 
Nov. 16, 2019, 3 a.m. 132.9 ppb (106) 101.9 ppb (100) 132.0 ppb (106) 31.0 ppb (29) N/A 1.0 ppb (1) 1.0 ppb (1) 1.72 ppb (19) N/A N/A 106.0
 
Nov. 16, 2019, 2 a.m. 132.4 ppb (106) 101.6 ppb (100) 129.8 ppb (106) 31.0 ppb (29) N/A 1.0 ppb (1) 1.0 ppb (1) 1.62 ppb (18) N/A N/A 106.0
 
Nov. 16, 2019, 1 a.m. 103.3 ppb (100) 71.0 ppb (68) 112.5 ppb (102) 32.0 ppb (30) N/A 1.0 ppb (1) 1.0 ppb (1) 1.23 ppb (14) N/A N/A 102.0
 
Nov. 16, 2019, midnight 74.2 ppb (71) 39.7 ppb (37) 76.2 ppb (74) 34.0 ppb (31) N/A 1.0 ppb (1) 0.0 ppb (0) 0.83 ppb (9) N/A N/A 74.0
 
Nov. 15, 2019, 11 p.m. 38.1 ppb (35) 7.5 ppb (7) 46.8 ppb (43) 31.0 ppb (29) N/A 1.0 ppb (1) 4.0 ppb (3) 0.34 ppb (4) N/A N/A 43.0
 
Nov. 15, 2019, 10 p.m. 19.6 ppb (18) 2.2 ppb (2) 19.8 ppb (18) 17.0 ppb (16) N/A 2.0 ppb (3) 18.0 ppb (14) 0.18 ppb (2) N/A N/A 18.0
 
Nov. 15, 2019, 9 p.m. 23.6 ppb (22) 6.3 ppb (6) 26.0 ppb (24) 18.0 ppb (17) N/A 2.0 ppb (3) 18.0 ppb (14) 0.18 ppb (2) N/A N/A 24.0
 
Nov. 15, 2019, 8 p.m. 21.3 ppb (20) 7.6 ppb (7) 23.4 ppb (22) 14.0 ppb (13) N/A 1.0 ppb (1) 23.0 ppb (18) 0.19 ppb (2) N/A N/A 22.0
 
Nov. 15, 2019, 7 p.m. 20.9 ppb (19) 8.2 ppb (8) 23.9 ppb (22) 13.0 ppb (12) N/A 1.0 ppb (1) 25.0 ppb (19) 0.19 ppb (2) N/A N/A 22.0
 
Nov. 15, 2019, 6 p.m. 36.6 ppb (34) 17.6 ppb (16) 41.9 ppb (39) 19.0 ppb (18) N/A 2.0 ppb (3) 17.0 ppb (13) 0.29 ppb (3) N/A N/A 39.0
 
Nov. 15, 2019, 5 p.m. 40.4 ppb (37) 20.2 ppb (19) 45.4 ppb (42) 20.0 ppb (19) N/A 2.0 ppb (3) 15.0 ppb (12) 0.3 ppb (3) N/A N/A 42.0
 
Nov. 15, 2019, 4 p.m. 46.8 ppb (43) 25.3 ppb (23) 53.2 ppb (49) 22.0 ppb (20) N/A 1.0 ppb (1) 13.0 ppb (10) 0.3 ppb (3) N/A N/A 49.0
 
Nov. 15, 2019, 3 p.m. 47.9 ppb (44) 27.3 ppb (25) 54.4 ppb (50) 21.0 ppb (19) N/A 1.0 ppb (1) 10.0 ppb (8) 0.48 ppb (5) N/A 35.7 μg/m3 (100) 100.0
 
Nov. 15, 2019, 2 p.m. 105.3 ppb (101) 77.1 ppb (75) 111.8 ppb (102) 28.0 ppb (26) N/A 1.0 ppb (1) 2.0 ppb (2) 0.84 ppb (9) N/A 35.7 μg/m3 (100) 102.0
 
Nov. 15, 2019, 1 p.m. 158.3 ppb (111) 132.8 ppb (106) 168.8 ppb (113) 26.0 ppb (24) N/A 1.0 ppb (1) 1.0 ppb (1) 1.36 ppb (15) N/A 26.9 μg/m3 (82) 113.0
 
Nov. 15, 2019, noon 124.1 ppb (104) 102.8 ppb (100) 132.6 ppb (106) 21.0 ppb (19) N/A 1.0 ppb (1) 0.0 ppb (0) 0.95 ppb (11) N/A 9.7 μg/m3 (40) 106.0
 
Nov. 15, 2019, 11 a.m. 118.6 ppb (103) 97.0 ppb (96) 130.0 ppb (106) 22.0 ppb (20) N/A N/A 0.0 ppb (0) 0.99 ppb (11) N/A N/A 106.0
 
Nov. 15, 2019, 10 a.m. 92.8 ppb (91) 70.2 ppb (67) 103.3 ppb (100) 23.0 ppb (21) N/A N/A 0.0 ppb (0) 0.7 ppb (8) N/A -4.9 μg/m3 (0) 100.0
 
Nov. 15, 2019, 9 a.m. 89.7 ppb (88) 65.9 ppb (63) 96.9 ppb (96) 24.0 ppb (22) N/A 0.0 ppb (0) 0.0 ppb (0) 0.67 ppb (7) N/A -1.7 μg/m3 (0) 96.0
 
Nov. 15, 2019, 8 a.m. 91.9 ppb (90) 67.7 ppb (65) 101.1 ppb (100) 24.0 ppb (22) N/A 0.0 ppb (0) 0.0 ppb (0) 0.75 ppb (8) N/A N/A 100.0
 
Nov. 15, 2019, 7 a.m. 65.5 ppb (62) 41.7 ppb (39) 71.1 ppb (68) 24.0 ppb (22) N/A 0.0 ppb (0) 0.0 ppb (0) 0.58 ppb (6) N/A 12.9 μg/m3 (52) 68.0
 
Nov. 15, 2019, 6 a.m. 58.4 ppb (55) 33.5 ppb (31) 62.8 ppb (59) 25.0 ppb (23) N/A 0.0 ppb (0) 0.0 ppb (0) 0.58 ppb (6) N/A 15.9 μg/m3 (58) 59.0
 
Nov. 15, 2019, 5 a.m. 50.8 ppb (47) 24.0 ppb (22) 50.0 ppb (46) 27.0 ppb (25) N/A 0.0 ppb (0) 0.0 ppb (0) 0.66 ppb (7) N/A 15.4 μg/m3 (57) 57.0
 
Nov. 15, 2019, 4 a.m. 50.9 ppb (47) 23.4 ppb (22) 45.4 ppb (42) 28.0 ppb (26) N/A 0.0 ppb (0) 1.0 ppb (1) 0.59 ppb (7) N/A N/A 47.0
 
Nov. 15, 2019, 3 a.m. 61.3 ppb (58) 32.1 ppb (30) 54.6 ppb (51) 29.0 ppb (27) N/A 0.0 ppb (0) 0.0 ppb (0) 0.64 ppb (7) N/A 14.9 μg/m3 (56) 58.0
 
Nov. 15, 2019, 2 a.m. 78.7 ppb (76) 51.1 ppb (47) 80.4 ppb (78) 28.0 ppb (26) N/A 0.0 ppb (0) 0.0 ppb (0) 0.82 ppb (9) N/A 17.5 μg/m3 (62) 78.0
 
Nov. 15, 2019, 1 a.m. 51.7 ppb (48) 21.5 ppb (20) 52.9 ppb (49) 30.0 ppb (28) N/A 0.0 ppb (0) 0.0 ppb (0) 0.55 ppb (6) N/A 21.1 μg/m3 (69) 69.0
 
Nov. 15, 2019, midnight 43.5 ppb (40) 12.5 ppb (12) 42.0 ppb (39) 31.0 ppb (29) N/A 0.0 ppb (0) 1.0 ppb (1) 0.65 ppb (7) N/A 1.7 μg/m3 (7) 40.0
 
Nov. 14, 2019, 11 p.m. 28.8 ppb (27) 3.0 ppb (3) 29.5 ppb (27) 26.0 ppb (24) N/A 0.0 ppb (0) 7.0 ppb (5) 0.3 ppb (3) N/A 11.5 μg/m3 (48) 48.0
 
Nov. 14, 2019, 10 p.m. 10.0 ppb (9) 0.7 ppb (1) 11.7 ppb (11) 9.0 ppb (8) N/A 0.0 ppb (0) 22.0 ppb (17) 0.19 ppb (2) N/A 8.6 μg/m3 (36) 36.0
 
Nov. 14, 2019, 9 p.m. 8.2 ppb (8) 2.2 ppb (2) 10.5 ppb (10) 6.0 ppb (6) N/A 0.0 ppb (0) 24.0 ppb (18) 0.23 ppb (3) N/A 4.4 μg/m3 (18) 18.0
 
Nov. 14, 2019, 8 p.m. 6.6 ppb (6) 2.6 ppb (2) 9.0 ppb (8) 4.0 ppb (4) N/A 0.0 ppb (0) 27.0 ppb (21) 0.16 ppb (2) N/A -4.1 μg/m3 (0) 21.0
 
Nov. 14, 2019, 7 p.m. 13.1 ppb (12) 5.2 ppb (5) 11.2 ppb (10) 8.0 ppb (7) N/A 0.0 ppb (0) 24.0 ppb (18) 0.19 ppb (2) N/A 5.6 μg/m3 (23) 23.0
 
Nov. 14, 2019, 6 p.m. 7.1 ppb (7) 3.2 ppb (3) 10.3 ppb (10) 4.0 ppb (4) N/A 0.0 ppb (0) 24.0 ppb (18) 0.17 ppb (2) N/A 7.9 μg/m3 (33) 33.0
 
Nov. 14, 2019, 5 p.m. 10.0 ppb (9) 5.3 ppb (5) 12.1 ppb (11) 5.0 ppb (5) N/A 0.0 ppb (0) 22.0 ppb (17) 0.23 ppb (3) N/A 7.8 μg/m3 (32) 32.0
 
Nov. 14, 2019, 4 p.m. 13.0 ppb (12) 5.8 ppb (5) 14.0 ppb (13) 7.0 ppb (6) N/A 1.0 ppb (1) 19.0 ppb (15) 0.21 ppb (2) N/A 11.6 μg/m3 (48) 48.0
 
Nov. 14, 2019, 3 p.m. 24.4 ppb (23) 9.4 ppb (9) 24.6 ppb (23) 15.0 ppb (14) N/A 3.0 ppb (4) 14.0 ppb (11) 0.24 ppb (3) N/A 7.1 μg/m3 (30) 30.0
 
Nov. 14, 2019, 2 p.m. 25.4 ppb (24) 8.4 ppb (8) 25.4 ppb (24) 17.0 ppb (16) N/A 1.0 ppb (1) 13.0 ppb (10) 0.32 ppb (4) N/A 1.4 μg/m3 (6) 24.0