ID: 2457

AQSQID: 401090097

Site Name: Near Road Okc

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

Updated: June 3, 2020, 9:33 p.m.

Location: Oklahoma City (Meridian Ave Corridor), OK

Reporting: True, Located: True

Current AQI: 31.0

Oklahoma City (Meridian Ave Corridor) OK, US: 35.502968, -97.577674

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 27, 2020, 8 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (3) 10.0 μg/m3 (9) 3.6 μg/m3 (15) 15.0
 
May 27, 2020, 7 p.m. 17.0 ppb (16) 9.0 ppb (8) N/A 8.0 ppb (7) N/A N/A N/A 0.7 ppb (8) 18.0 μg/m3 (16) 4.8 μg/m3 (20) 20.0
 
May 27, 2020, 6 p.m. 16.0 ppb (15) 8.0 ppb (7) N/A 8.0 ppb (7) N/A N/A N/A 0.5 ppb (6) 13.0 μg/m3 (12) 3.9 μg/m3 (16) 16.0
 
May 27, 2020, 5 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.3 ppb (3) 12.0 μg/m3 (11) 3.6 μg/m3 (15) 15.0
 
May 27, 2020, 4 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.3 ppb (3) 14.0 μg/m3 (13) 4.4 μg/m3 (18) 18.0
 
May 27, 2020, 3 p.m. 6.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.4 ppb (4) 15.0 μg/m3 (14) 5.3 μg/m3 (22) 22.0
 
May 27, 2020, 2 p.m. 6.0 ppb (6) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.4 ppb (4) 14.0 μg/m3 (13) 5.3 μg/m3 (22) 22.0
 
May 27, 2020, 1 p.m. 10.0 ppb (9) 2.0 ppb (2) N/A 8.0 ppb (7) N/A N/A N/A 0.4 ppb (4) 14.0 μg/m3 (13) 5.1 μg/m3 (21) 21.0
 
May 27, 2020, noon 13.0 ppb (12) 5.0 ppb (5) N/A 7.0 ppb (6) N/A N/A N/A 0.5 ppb (6) 13.0 μg/m3 (12) 5.7 μg/m3 (24) 24.0
 
May 27, 2020, 11 a.m. 34.0 ppb (31) 22.0 ppb (20) N/A 12.0 ppb (11) N/A N/A N/A 0.6 ppb (7) 14.0 μg/m3 (13) 7.2 μg/m3 (30) 31.0
 
May 27, 2020, 10 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.4 ppb (4) 12.0 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
May 27, 2020, 9 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (3) 11.0 μg/m3 (10) 5.2 μg/m3 (22) 22.0
 
May 27, 2020, 8 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (3) 13.0 μg/m3 (12) 5.5 μg/m3 (23) 23.0
 
May 27, 2020, 7 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.3 ppb (3) 12.0 μg/m3 (11) 5.2 μg/m3 (22) 22.0
 
May 27, 2020, 6 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.3 ppb (3) 10.0 μg/m3 (9) 4.6 μg/m3 (19) 19.0
 
May 27, 2020, 5 a.m. 14.0 ppb (13) 2.0 ppb (2) N/A 11.0 ppb (10) N/A N/A N/A 0.4 ppb (4) 12.0 μg/m3 (11) 5.1 μg/m3 (21) 21.0
 
May 27, 2020, 4 a.m. 32.0 ppb (30) 14.0 ppb (13) N/A 17.0 ppb (16) N/A N/A N/A 0.6 ppb (7) 15.0 μg/m3 (14) 5.7 μg/m3 (24) 30.0
 
May 27, 2020, 3 a.m. 40.0 ppb (37) 18.0 ppb (17) N/A 22.0 ppb (20) N/A N/A N/A 0.8 ppb (9) 18.0 μg/m3 (16) 7.1 μg/m3 (30) 37.0
 
May 27, 2020, 2 a.m. 43.0 ppb (40) 18.0 ppb (17) N/A 24.0 ppb (22) N/A N/A N/A 0.8 ppb (9) 16.0 μg/m3 (15) 5.8 μg/m3 (24) 40.0
 
May 27, 2020, 1 a.m. 36.0 ppb (33) 15.0 ppb (14) N/A 20.0 ppb (19) N/A N/A N/A 0.7 ppb (8) 15.0 μg/m3 (14) 4.9 μg/m3 (20) 33.0
 
May 27, 2020, midnight 16.0 ppb (15) 6.0 ppb (6) N/A 9.0 ppb (8) N/A N/A N/A 0.5 ppb (6) 12.0 μg/m3 (11) 3.9 μg/m3 (16) 16.0
 
May 26, 2020, 11 p.m. 12.0 ppb (11) 5.0 ppb (5) N/A 7.0 ppb (6) N/A N/A N/A 0.4 ppb (4) 12.0 μg/m3 (11) 3.7 μg/m3 (15) 15.0
 
May 26, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
May 26, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) 11.0 μg/m3 (10) 3.6 μg/m3 (15) 15.0
 
May 26, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A 0.3 ppb (3) 10.0 μg/m3 (9) 3.0 μg/m3 (12) 12.0
 
May 26, 2020, 7 p.m. 8.0 ppb (7) 3.0 ppb (3) N/A 4.0 ppb (4) N/A N/A N/A N/A 12.0 μg/m3 (11) 3.2 μg/m3 (13) 13.0
 
May 26, 2020, 6 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A N/A 10.0 μg/m3 (9) 2.8 μg/m3 (12) 12.0
 
May 26, 2020, 5 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.6 ppb (7) 10.0 μg/m3 (9) 3.2 μg/m3 (13) 13.0
 
May 26, 2020, 4 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.6 ppb (7) 9.0 μg/m3 (8) 3.1 μg/m3 (13) 13.0
 
May 26, 2020, 3 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.6 ppb (7) 7.0 μg/m3 (6) 3.0 μg/m3 (12) 12.0
 
May 26, 2020, 2 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.6 ppb (7) 7.0 μg/m3 (6) 2.8 μg/m3 (12) 12.0
 
May 26, 2020, 1 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.6 ppb (7) 4.0 μg/m3 (4) 1.8 μg/m3 (8) 8.0
 
May 26, 2020, noon 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.6 ppb (7) 5.0 μg/m3 (5) 1.9 μg/m3 (8) 8.0
 
May 26, 2020, 11 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.5 ppb (6) 6.0 μg/m3 (5) 2.7 μg/m3 (11) 11.0
 
May 26, 2020, 10 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.6 ppb (7) 7.0 μg/m3 (6) 2.6 μg/m3 (11) 11.0
 
May 26, 2020, 9 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.5 ppb (6) 6.0 μg/m3 (5) 2.2 μg/m3 (9) 9.0
 
May 26, 2020, 8 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.5 ppb (6) 5.0 μg/m3 (5) 1.9 μg/m3 (8) 8.0
 
May 26, 2020, 7 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.5 ppb (6) 4.0 μg/m3 (4) 1.6 μg/m3 (7) 7.0
 
May 26, 2020, 6 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.5 ppb (6) 5.0 μg/m3 (5) 1.4 μg/m3 (6) 6.0
 
May 26, 2020, 5 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.5 ppb (6) 4.0 μg/m3 (4) 1.4 μg/m3 (6) 6.0
 
May 26, 2020, 4 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.5 ppb (6) 4.0 μg/m3 (4) 1.5 μg/m3 (6) 6.0
 
May 26, 2020, 3 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.5 ppb (6) 6.0 μg/m3 (5) 2.0 μg/m3 (8) 8.0
 
May 26, 2020, 2 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.5 ppb (6) 7.0 μg/m3 (6) 2.9 μg/m3 (12) 12.0
 
May 26, 2020, 1 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.5 ppb (6) 8.0 μg/m3 (7) 4.2 μg/m3 (18) 18.0
 
May 26, 2020, midnight 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.5 ppb (6) 8.0 μg/m3 (7) 4.3 μg/m3 (18) 18.0
 
May 25, 2020, 11 p.m. 5.0 ppb (5) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.6 ppb (7) 9.0 μg/m3 (8) 4.7 μg/m3 (20) 20.0
 
May 25, 2020, 10 p.m. 19.0 ppb (18) 7.0 ppb (6) N/A 11.0 ppb (10) N/A N/A N/A 0.7 ppb (8) 13.0 μg/m3 (12) 6.0 μg/m3 (25) 25.0
 
May 25, 2020, 9 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.5 ppb (6) 9.0 μg/m3 (8) 4.2 μg/m3 (18) 18.0
 
May 25, 2020, 8 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.5 ppb (6) 9.0 μg/m3 (8) 4.4 μg/m3 (18) 18.0
 
May 25, 2020, 7 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.5 ppb (6) 8.0 μg/m3 (7) 4.2 μg/m3 (18) 18.0
 
May 25, 2020, 6 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.5 ppb (6) 8.0 μg/m3 (7) 4.0 μg/m3 (17) 17.0
 
May 25, 2020, 5 p.m. 5.0 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A N/A N/A 0.6 ppb (7) 9.0 μg/m3 (8) 4.3 μg/m3 (18) 18.0
 
May 25, 2020, 4 p.m. 17.0 ppb (16) 9.0 ppb (8) N/A 7.0 ppb (6) N/A N/A N/A 0.7 ppb (8) 10.0 μg/m3 (9) 4.5 μg/m3 (19) 19.0
 
May 25, 2020, 3 p.m. 20.0 ppb (19) 10.0 ppb (9) N/A 10.0 ppb (9) N/A N/A N/A 0.7 ppb (8) 10.0 μg/m3 (9) 4.2 μg/m3 (18) 19.0
 
May 25, 2020, 2 p.m. 21.0 ppb (19) 10.0 ppb (9) N/A 11.0 ppb (10) N/A N/A N/A 0.7 ppb (8) 10.0 μg/m3 (9) 4.2 μg/m3 (18) 19.0
 
May 25, 2020, 1 p.m. 14.0 ppb (13) 5.0 ppb (5) N/A 8.0 ppb (7) N/A N/A N/A 0.6 ppb (7) 9.0 μg/m3 (8) 3.9 μg/m3 (16) 16.0
 
May 25, 2020, noon 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.5 ppb (6) 7.0 μg/m3 (6) 3.5 μg/m3 (15) 15.0
 
May 25, 2020, 11 a.m. 14.0 ppb (13) 5.0 ppb (5) N/A 8.0 ppb (7) N/A N/A N/A 0.5 ppb (6) 9.0 μg/m3 (8) 3.6 μg/m3 (15) 15.0
 
May 25, 2020, 10 a.m. 5.0 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A N/A N/A 0.5 ppb (6) 8.0 μg/m3 (7) 3.6 μg/m3 (15) 15.0
 
May 25, 2020, 9 a.m. 5.0 ppb (5) 2.0 ppb (2) N/A 2.0 ppb (2) N/A N/A N/A 0.5 ppb (6) 8.0 μg/m3 (7) 3.9 μg/m3 (16) 16.0
 
May 25, 2020, 8 a.m. 9.0 ppb (8) 2.0 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A 0.5 ppb (6) 9.0 μg/m3 (8) 4.3 μg/m3 (18) 18.0
 
May 25, 2020, 7 a.m. 9.0 ppb (8) 2.0 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A 0.6 ppb (7) 9.0 μg/m3 (8) 4.0 μg/m3 (17) 17.0
 
May 25, 2020, 6 a.m. 5.0 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.5 ppb (6) 9.0 μg/m3 (8) 3.7 μg/m3 (15) 15.0
 
May 25, 2020, 5 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.5 ppb (6) 9.0 μg/m3 (8) 3.7 μg/m3 (15) 15.0
 
May 25, 2020, 4 a.m. 12.0 ppb (11) 5.0 ppb (5) N/A 7.0 ppb (6) N/A N/A N/A 0.6 ppb (7) 8.0 μg/m3 (7) 3.5 μg/m3 (15) 15.0
 
May 25, 2020, 3 a.m. 16.0 ppb (15) 7.0 ppb (6) N/A 9.0 ppb (8) N/A N/A N/A 0.7 ppb (8) 10.0 μg/m3 (9) 3.9 μg/m3 (16) 16.0
 
May 25, 2020, 2 a.m. 14.0 ppb (13) 8.0 ppb (7) N/A 5.0 ppb (5) N/A N/A N/A 0.7 ppb (8) 14.0 μg/m3 (13) 5.4 μg/m3 (23) 23.0
 
May 25, 2020, 1 a.m. 12.0 ppb (11) 8.0 ppb (7) N/A 4.0 ppb (4) N/A N/A N/A 0.8 ppb (9) 18.0 μg/m3 (16) 8.2 μg/m3 (34) 34.0
 
May 25, 2020, midnight 13.0 ppb (12) 9.0 ppb (8) N/A 4.0 ppb (4) N/A N/A N/A 0.9 ppb (10) 20.0 μg/m3 (18) 10.0 μg/m3 (42) 42.0
 
May 24, 2020, 11 p.m. 18.0 ppb (17) 12.0 ppb (11) N/A 6.0 ppb (6) N/A N/A N/A 0.9 ppb (10) 19.0 μg/m3 (17) 9.1 μg/m3 (38) 38.0
 
May 24, 2020, 10 p.m. 22.0 ppb (20) 12.0 ppb (11) N/A 10.0 ppb (9) N/A N/A N/A 0.9 ppb (10) 17.0 μg/m3 (15) 8.0 μg/m3 (33) 33.0
 
May 24, 2020, 9 p.m. 20.0 ppb (19) 12.0 ppb (11) N/A 8.0 ppb (7) N/A N/A N/A 0.9 ppb (10) 18.0 μg/m3 (16) 8.0 μg/m3 (33) 33.0
 
May 24, 2020, 8 p.m. 23.0 ppb (21) 14.0 ppb (13) N/A 8.0 ppb (7) N/A N/A N/A 0.9 ppb (10) 18.0 μg/m3 (16) 8.1 μg/m3 (34) 34.0
 
May 24, 2020, 7 p.m. 22.0 ppb (20) 12.0 ppb (11) N/A 10.0 ppb (9) N/A N/A N/A 0.8 ppb (9) 17.0 μg/m3 (15) 7.8 μg/m3 (32) 32.0
 
May 24, 2020, 6 p.m. 17.0 ppb (16) 9.0 ppb (8) N/A 7.0 ppb (6) N/A N/A N/A 0.9 ppb (10) 17.0 μg/m3 (15) 7.6 μg/m3 (32) 32.0
 
May 24, 2020, 5 p.m. 17.0 ppb (16) 9.0 ppb (8) N/A 7.0 ppb (6) N/A N/A N/A 0.8 ppb (9) 18.0 μg/m3 (16) 7.5 μg/m3 (31) 31.0
 
May 24, 2020, 4 p.m. 16.0 ppb (15) 8.0 ppb (7) N/A 7.0 ppb (6) N/A N/A N/A 0.7 ppb (8) 18.0 μg/m3 (16) 6.9 μg/m3 (29) 29.0
 
May 24, 2020, 3 p.m. 17.0 ppb (16) 10.0 ppb (9) N/A 7.0 ppb (6) N/A N/A N/A 0.7 ppb (8) 15.0 μg/m3 (14) 5.6 μg/m3 (23) 23.0
 
May 24, 2020, 2 p.m. 17.0 ppb (16) 7.0 ppb (6) N/A 9.0 ppb (8) N/A N/A N/A 0.6 ppb (7) 12.0 μg/m3 (11) 4.7 μg/m3 (20) 20.0
 
May 24, 2020, 1 p.m. 19.0 ppb (18) 8.0 ppb (7) N/A 11.0 ppb (10) N/A N/A N/A 0.6 ppb (7) 12.0 μg/m3 (11) 4.4 μg/m3 (18) 18.0
 
May 24, 2020, noon 7.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.5 ppb (6) 9.0 μg/m3 (8) 4.0 μg/m3 (17) 17.0
 
May 24, 2020, 11 a.m. 12.0 ppb (11) 3.0 ppb (3) N/A 9.0 ppb (8) N/A N/A N/A 0.6 ppb (7) 9.0 μg/m3 (8) 3.9 μg/m3 (16) 16.0
 
May 24, 2020, 10 a.m. 10.0 ppb (9) 3.0 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A 0.5 ppb (6) 8.0 μg/m3 (7) 3.9 μg/m3 (16) 16.0
 
May 24, 2020, 9 a.m. 10.0 ppb (9) 2.0 ppb (2) N/A 8.0 ppb (7) N/A N/A N/A 0.5 ppb (6) 10.0 μg/m3 (9) 4.2 μg/m3 (18) 18.0
 
May 24, 2020, 8 a.m. 10.0 ppb (9) 1.0 ppb (1) N/A 8.0 ppb (7) N/A N/A N/A 0.5 ppb (6) 10.0 μg/m3 (9) 4.4 μg/m3 (18) 18.0
 
May 24, 2020, 7 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.4 ppb (4) 7.0 μg/m3 (6) 3.5 μg/m3 (15) 15.0
 
May 24, 2020, 6 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.4 ppb (4) 10.0 μg/m3 (9) 4.2 μg/m3 (18) 18.0
 
May 24, 2020, 5 a.m. 6.0 ppb (6) 3.0 ppb (3) N/A 3.0 ppb (3) N/A N/A N/A 0.6 ppb (7) 30.0 μg/m3 (27) 11.6 μg/m3 (48) 48.0
 
May 24, 2020, 4 a.m. 18.0 ppb (17) 9.0 ppb (8) N/A 9.0 ppb (8) N/A N/A N/A 0.8 ppb (9) 27.0 μg/m3 (25) 13.9 μg/m3 (54) 54.0
 
May 24, 2020, 3 a.m. 21.0 ppb (19) 10.0 ppb (9) N/A 11.0 ppb (10) N/A N/A N/A 0.8 ppb (9) 28.0 μg/m3 (25) 14.2 μg/m3 (55) 55.0
 
May 24, 2020, 2 a.m. 26.0 ppb (24) 13.0 ppb (12) N/A 13.0 ppb (12) N/A N/A N/A 0.8 ppb (9) 31.0 μg/m3 (28) 14.4 μg/m3 (55) 55.0
 
May 24, 2020, 1 a.m. 26.0 ppb (24) 13.0 ppb (12) N/A 12.0 ppb (11) N/A N/A N/A 1.0 ppb (11) 29.0 μg/m3 (26) 13.7 μg/m3 (54) 54.0
 
May 24, 2020, midnight 30.0 ppb (28) 16.0 ppb (15) N/A 13.0 ppb (12) N/A N/A N/A 0.9 ppb (10) 29.0 μg/m3 (26) 13.4 μg/m3 (53) 53.0
 
May 23, 2020, 11 p.m. 27.0 ppb (25) 14.0 ppb (13) N/A 13.0 ppb (12) N/A N/A N/A 1.0 ppb (11) 30.0 μg/m3 (27) 12.3 μg/m3 (51) 51.0
 
May 23, 2020, 10 p.m. 31.0 ppb (29) 16.0 ppb (15) N/A 14.0 ppb (13) N/A N/A N/A 1.0 ppb (11) 27.0 μg/m3 (25) 10.9 μg/m3 (45) 45.0
 
May 23, 2020, 9 p.m. 27.0 ppb (25) 14.0 ppb (13) N/A 12.0 ppb (11) N/A N/A N/A 0.8 ppb (9) 29.0 μg/m3 (26) 8.8 μg/m3 (37) 37.0
 
May 23, 2020, 8 p.m. 27.0 ppb (25) 12.0 ppb (11) N/A 15.0 ppb (14) N/A N/A N/A 1.0 ppb (11) 20.0 μg/m3 (18) 5.6 μg/m3 (23) 25.0
 
May 23, 2020, 7 p.m. 29.0 ppb (27) 13.0 ppb (12) N/A 16.0 ppb (15) N/A N/A N/A 0.9 ppb (10) 19.0 μg/m3 (17) 4.9 μg/m3 (20) 27.0
 
May 23, 2020, 6 p.m. 28.0 ppb (26) 13.0 ppb (12) N/A 14.0 ppb (13) N/A N/A N/A 0.8 ppb (9) 16.0 μg/m3 (15) 5.1 μg/m3 (21) 26.0
 
May 23, 2020, 5 p.m. 37.0 ppb (34) 18.0 ppb (17) N/A 19.0 ppb (18) N/A N/A N/A 0.9 ppb (10) 18.0 μg/m3 (16) 5.6 μg/m3 (23) 34.0
 
May 23, 2020, 4 p.m. 33.0 ppb (31) 16.0 ppb (15) N/A 17.0 ppb (16) N/A N/A N/A 0.8 ppb (9) 19.0 μg/m3 (17) 5.5 μg/m3 (23) 31.0
 
May 23, 2020, 3 p.m. 34.0 ppb (31) 16.0 ppb (15) N/A 17.0 ppb (16) N/A N/A N/A 0.8 ppb (9) 17.0 μg/m3 (15) 5.3 μg/m3 (22) 31.0
 
May 23, 2020, 2 p.m. 36.0 ppb (33) 17.0 ppb (16) N/A 19.0 ppb (18) N/A N/A N/A 0.8 ppb (9) 19.0 μg/m3 (17) 5.3 μg/m3 (22) 33.0
 
May 23, 2020, 1 p.m. 42.0 ppb (39) 18.0 ppb (17) N/A 24.0 ppb (22) N/A N/A N/A 0.8 ppb (9) 19.0 μg/m3 (17) 5.4 μg/m3 (23) 39.0
 
May 23, 2020, noon 28.0 ppb (26) 12.0 ppb (11) N/A 15.0 ppb (14) N/A N/A N/A 0.6 ppb (7) 16.0 μg/m3 (15) 5.2 μg/m3 (22) 26.0
 
May 23, 2020, 11 a.m. 20.0 ppb (19) 6.0 ppb (6) N/A 13.0 ppb (12) N/A N/A N/A 0.5 ppb (6) 15.0 μg/m3 (14) 5.3 μg/m3 (22) 22.0
 
May 23, 2020, 10 a.m. 15.0 ppb (14) 4.0 ppb (4) N/A 11.0 ppb (10) N/A N/A N/A 0.5 ppb (6) 13.0 μg/m3 (12) 5.4 μg/m3 (23) 23.0
 
May 23, 2020, 9 a.m. 7.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.5 ppb (6) 18.0 μg/m3 (16) 9.3 μg/m3 (39) 39.0
 
May 23, 2020, 8 a.m. 10.0 ppb (9) 1.0 ppb (1) N/A 8.0 ppb (7) N/A N/A N/A 0.6 ppb (7) 20.0 μg/m3 (18) 11.3 μg/m3 (47) 47.0
 
May 23, 2020, 7 a.m. 11.0 ppb (10) 3.0 ppb (3) N/A 7.0 ppb (6) N/A N/A N/A 0.6 ppb (7) 19.0 μg/m3 (17) 10.8 μg/m3 (45) 45.0
 
May 23, 2020, 6 a.m. 14.0 ppb (13) 5.0 ppb (5) N/A 8.0 ppb (7) N/A N/A N/A 0.7 ppb (8) 20.0 μg/m3 (18) 11.5 μg/m3 (48) 48.0
 
May 23, 2020, 5 a.m. 23.0 ppb (21) 9.0 ppb (8) N/A 14.0 ppb (13) N/A N/A N/A 0.9 ppb (10) 23.0 μg/m3 (21) 12.3 μg/m3 (51) 51.0
 
May 23, 2020, 4 a.m. 27.0 ppb (25) 11.0 ppb (10) N/A 15.0 ppb (14) N/A N/A N/A 0.9 ppb (10) 21.0 μg/m3 (19) 11.1 μg/m3 (46) 46.0
 
May 23, 2020, 3 a.m. 31.0 ppb (29) 14.0 ppb (13) N/A 16.0 ppb (15) N/A N/A N/A 0.9 ppb (10) 21.0 μg/m3 (19) 10.6 μg/m3 (44) 44.0
 
May 23, 2020, 2 a.m. 33.0 ppb (31) 16.0 ppb (15) N/A 17.0 ppb (16) N/A N/A N/A 1.0 ppb (11) 24.0 μg/m3 (22) 10.4 μg/m3 (43) 43.0
 
May 23, 2020, 1 a.m. 32.0 ppb (30) 14.0 ppb (13) N/A 17.0 ppb (16) N/A N/A N/A 1.0 ppb (11) 22.0 μg/m3 (20) 9.8 μg/m3 (41) 41.0
 
May 23, 2020, midnight 29.0 ppb (27) 16.0 ppb (15) N/A 13.0 ppb (12) N/A N/A N/A 0.9 ppb (10) 23.0 μg/m3 (21) 9.2 μg/m3 (38) 38.0
 
May 22, 2020, 11 p.m. 42.0 ppb (39) 22.0 ppb (20) N/A 20.0 ppb (19) N/A N/A N/A 1.1 ppb (12) 26.0 μg/m3 (24) 10.9 μg/m3 (45) 45.0
 
May 22, 2020, 10 p.m. 14.0 ppb (13) 5.0 ppb (5) N/A 8.0 ppb (7) N/A N/A N/A 0.6 ppb (7) 20.0 μg/m3 (18) 9.9 μg/m3 (41) 41.0
 
May 22, 2020, 9 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.5 ppb (6) 19.0 μg/m3 (17) 10.1 μg/m3 (42) 42.0
 
May 22, 2020, 8 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.5 ppb (6) 20.0 μg/m3 (18) 10.2 μg/m3 (42) 42.0
 
May 22, 2020, 7 p.m. 14.0 ppb (13) 6.0 ppb (6) N/A 7.0 ppb (6) N/A N/A N/A 0.6 ppb (7) 20.0 μg/m3 (18) 10.4 μg/m3 (43) 43.0
 
May 22, 2020, 6 p.m. 16.0 ppb (15) 7.0 ppb (6) N/A 8.0 ppb (7) N/A N/A N/A 0.6 ppb (7) 17.0 μg/m3 (15) 7.9 μg/m3 (33) 33.0
 
May 22, 2020, 5 p.m. 19.0 ppb (18) 8.0 ppb (7) N/A 10.0 ppb (9) N/A N/A N/A 0.6 ppb (7) 13.0 μg/m3 (12) 5.0 μg/m3 (21) 21.0
 
May 22, 2020, 4 p.m. 38.0 ppb (35) 19.0 ppb (18) N/A 19.0 ppb (18) N/A N/A N/A 0.8 ppb (9) 15.0 μg/m3 (14) 4.2 μg/m3 (18) 35.0
 
May 22, 2020, 3 p.m. 40.0 ppb (37) 22.0 ppb (20) N/A 17.0 ppb (16) N/A N/A N/A 0.7 ppb (8) 16.0 μg/m3 (15) 4.3 μg/m3 (18) 37.0
 
May 22, 2020, 2 p.m. 42.0 ppb (39) 25.0 ppb (23) N/A 17.0 ppb (16) N/A N/A N/A 0.8 ppb (9) 14.0 μg/m3 (13) 4.3 μg/m3 (18) 39.0
 
May 21, 2020, 7 p.m. 41.0 ppb (38) 26.0 ppb (24) N/A 15.0 ppb (14) N/A N/A N/A 0.9 ppb (10) 33.0 μg/m3 (30) 11.5 μg/m3 (48) 48.0
 
May 21, 2020, 6 p.m. 48.0 ppb (44) 28.0 ppb (26) N/A 19.0 ppb (18) N/A N/A N/A 0.9 ppb (10) 32.0 μg/m3 (29) 11.3 μg/m3 (47) 47.0
 
May 21, 2020, 5 p.m. 44.0 ppb (41) 29.0 ppb (27) N/A 14.0 ppb (13) N/A N/A N/A 0.8 ppb (9) 31.0 μg/m3 (28) 10.7 μg/m3 (45) 45.0
 
May 21, 2020, 4 p.m. 37.0 ppb (34) 27.0 ppb (25) N/A 10.0 ppb (9) N/A N/A N/A 0.7 ppb (8) 32.0 μg/m3 (29) 10.5 μg/m3 (44) 44.0
 
May 21, 2020, 3 p.m. 34.0 ppb (31) 23.0 ppb (21) N/A 11.0 ppb (10) N/A N/A N/A 0.8 ppb (9) 30.0 μg/m3 (27) 10.3 μg/m3 (43) 43.0
 
May 21, 2020, 2 p.m. 39.0 ppb (36) 25.0 ppb (23) N/A 13.0 ppb (12) N/A N/A N/A 0.7 ppb (8) 30.0 μg/m3 (27) 9.3 μg/m3 (39) 39.0
 
May 21, 2020, 1 p.m. 46.0 ppb (43) 30.0 ppb (28) N/A 15.0 ppb (14) N/A N/A N/A 0.8 ppb (9) 31.0 μg/m3 (28) 8.4 μg/m3 (35) 43.0
 
May 21, 2020, noon 42.0 ppb (39) 28.0 ppb (26) N/A 14.0 ppb (13) N/A N/A N/A 0.7 ppb (8) 22.0 μg/m3 (20) 7.9 μg/m3 (33) 39.0
 
May 21, 2020, 11 a.m. 42.0 ppb (39) 27.0 ppb (25) N/A 14.0 ppb (13) N/A N/A N/A 0.8 ppb (9) 20.0 μg/m3 (18) 8.3 μg/m3 (35) 39.0
 
May 21, 2020, 10 a.m. 15.0 ppb (14) 8.0 ppb (7) N/A 6.0 ppb (6) N/A N/A N/A 0.5 ppb (6) 16.0 μg/m3 (15) 7.6 μg/m3 (32) 32.0
 
May 21, 2020, 9 a.m. 11.0 ppb (10) 6.0 ppb (6) N/A 4.0 ppb (4) N/A N/A N/A 0.4 ppb (4) 15.0 μg/m3 (14) 7.2 μg/m3 (30) 30.0
 
May 21, 2020, 8 a.m. 10.0 ppb (9) 3.0 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A 0.4 ppb (4) 16.0 μg/m3 (15) 6.9 μg/m3 (29) 29.0
 
May 21, 2020, 7 a.m. 9.0 ppb (8) 3.0 ppb (3) N/A 5.0 ppb (5) N/A N/A N/A 0.4 ppb (4) 20.0 μg/m3 (18) 6.9 μg/m3 (29) 29.0
 
May 21, 2020, 6 a.m. 8.0 ppb (7) 3.0 ppb (3) N/A 4.0 ppb (4) N/A N/A N/A 0.4 ppb (4) 16.0 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
May 21, 2020, 5 a.m. 10.0 ppb (9) 4.0 ppb (4) N/A 5.0 ppb (5) N/A N/A N/A 0.4 ppb (4) 15.0 μg/m3 (14) 5.4 μg/m3 (23) 23.0
 
May 21, 2020, 4 a.m. 13.0 ppb (12) 7.0 ppb (6) N/A 6.0 ppb (6) N/A N/A N/A 0.5 ppb (6) 17.0 μg/m3 (15) 5.3 μg/m3 (22) 22.0
 
May 21, 2020, 3 a.m. 14.0 ppb (13) 8.0 ppb (7) N/A 5.0 ppb (5) N/A N/A N/A 0.5 ppb (6) 17.0 μg/m3 (15) 5.3 μg/m3 (22) 22.0
 
May 21, 2020, 2 a.m. 21.0 ppb (19) 12.0 ppb (11) N/A 8.0 ppb (7) N/A N/A N/A 0.6 ppb (7) 18.0 μg/m3 (16) 5.7 μg/m3 (24) 24.0
 
May 21, 2020, 1 a.m. 23.0 ppb (21) 12.0 ppb (11) N/A 10.0 ppb (9) N/A N/A N/A 0.6 ppb (7) 21.0 μg/m3 (19) 5.9 μg/m3 (25) 25.0
 
May 21, 2020, midnight 27.0 ppb (25) 16.0 ppb (15) N/A 10.0 ppb (9) N/A N/A N/A 0.6 ppb (7) 21.0 μg/m3 (19) 5.9 μg/m3 (25) 25.0
 
May 20, 2020, 11 p.m. 32.0 ppb (30) 19.0 ppb (18) N/A 12.0 ppb (11) N/A N/A N/A 0.7 ppb (8) 24.0 μg/m3 (22) 6.5 μg/m3 (27) 30.0
 
May 20, 2020, 10 p.m. 37.0 ppb (34) 23.0 ppb (21) N/A 13.0 ppb (12) N/A N/A N/A 0.8 ppb (9) 26.0 μg/m3 (24) 7.2 μg/m3 (30) 34.0
 
May 20, 2020, 9 p.m. 36.0 ppb (33) 21.0 ppb (19) N/A 14.0 ppb (13) N/A N/A N/A 0.7 ppb (8) 26.0 μg/m3 (24) 7.4 μg/m3 (31) 33.0
 
May 20, 2020, 8 p.m. 38.0 ppb (35) 22.0 ppb (20) N/A 16.0 ppb (15) N/A N/A N/A 0.7 ppb (8) 26.0 μg/m3 (24) 7.5 μg/m3 (31) 35.0
 
May 20, 2020, 7 p.m. 38.0 ppb (35) 21.0 ppb (19) N/A 17.0 ppb (16) N/A N/A N/A 0.7 ppb (8) 29.0 μg/m3 (26) 8.0 μg/m3 (33) 35.0
 
May 20, 2020, 6 p.m. 31.0 ppb (29) 18.0 ppb (17) N/A 13.0 ppb (12) N/A N/A N/A 0.7 ppb (8) 25.0 μg/m3 (23) 7.6 μg/m3 (32) 32.0
 
May 20, 2020, 5 p.m. 35.0 ppb (32) 20.0 ppb (19) N/A 15.0 ppb (14) N/A N/A N/A 0.6 ppb (7) 32.0 μg/m3 (29) 7.9 μg/m3 (33) 33.0
 
May 20, 2020, 4 p.m. 38.0 ppb (35) 24.0 ppb (22) N/A 13.0 ppb (12) N/A N/A N/A 0.7 ppb (8) 32.0 μg/m3 (29) 8.3 μg/m3 (35) 35.0
 
May 20, 2020, 3 p.m. 38.0 ppb (35) 25.0 ppb (23) N/A 12.0 ppb (11) N/A N/A N/A 0.6 ppb (7) 32.0 μg/m3 (29) 7.3 μg/m3 (30) 35.0
 
May 20, 2020, 2 p.m. 40.0 ppb (37) 27.0 ppb (25) N/A 12.0 ppb (11) N/A N/A N/A N/A 24.0 μg/m3 (22) 6.7 μg/m3 (28) 37.0
 
May 20, 2020, 1 p.m. 48.0 ppb (44) 32.0 ppb (30) N/A 16.0 ppb (15) N/A N/A N/A N/A 25.0 μg/m3 (23) 7.5 μg/m3 (31) 44.0
 
May 20, 2020, noon 43.0 ppb (40) 29.0 ppb (27) N/A 13.0 ppb (12) N/A N/A N/A 1.0 ppb (11) 23.0 μg/m3 (21) 7.4 μg/m3 (31) 40.0
 
May 20, 2020, 11 a.m. 34.0 ppb (31) 23.0 ppb (21) N/A 10.0 ppb (9) N/A N/A N/A 1.0 ppb (11) 13.0 μg/m3 (12) 7.0 μg/m3 (29) 31.0
 
May 20, 2020, 10 a.m. 18.0 ppb (17) 10.0 ppb (9) N/A 7.0 ppb (6) N/A N/A N/A 0.7 ppb (8) 13.0 μg/m3 (12) 5.8 μg/m3 (24) 24.0
 
May 20, 2020, 9 a.m. 14.0 ppb (13) 6.0 ppb (6) N/A 8.0 ppb (7) N/A N/A N/A 0.6 ppb (7) 12.0 μg/m3 (11) 5.9 μg/m3 (25) 25.0
 
May 20, 2020, 8 a.m. 10.0 ppb (9) 4.0 ppb (4) N/A 6.0 ppb (6) N/A N/A N/A 0.6 ppb (7) 13.0 μg/m3 (12) 5.8 μg/m3 (24) 24.0
 
May 20, 2020, 7 a.m. 6.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.6 ppb (7) 12.0 μg/m3 (11) 5.3 μg/m3 (22) 22.0
 
May 20, 2020, 6 a.m. 8.0 ppb (7) 4.0 ppb (4) N/A 4.0 ppb (4) N/A N/A N/A 0.6 ppb (7) 14.0 μg/m3 (13) 4.8 μg/m3 (20) 20.0
 
May 20, 2020, 5 a.m. 11.0 ppb (10) 5.0 ppb (5) N/A 5.0 ppb (5) N/A N/A N/A 0.6 ppb (7) 12.0 μg/m3 (11) 4.8 μg/m3 (20) 20.0
 
May 20, 2020, 4 a.m. 10.0 ppb (9) 5.0 ppb (5) N/A 4.0 ppb (4) N/A N/A N/A 0.6 ppb (7) 12.0 μg/m3 (11) 4.6 μg/m3 (19) 19.0
 
May 20, 2020, 3 a.m. 11.0 ppb (10) 6.0 ppb (6) N/A 5.0 ppb (5) N/A N/A N/A 0.7 ppb (8) 15.0 μg/m3 (14) 5.1 μg/m3 (21) 21.0