AQSQID: 400019009

Site Name: Stilwell Castnet & Ncore

Location: Adair Co, OK

Reporting: True, Located: True

Current AQI: 21.0

Adair Co OK, US: 35.750599, -94.669701

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 20, 2019, 8 a.m. N/A N/A 1.2 ppb (1) N/A N/A 0.0 ppb (0) 18.0 ppb (14) 0.2 ppb (2) 15.0 μg/m3 (14) 5.0 μg/m3 (21) 21.0
 
July 20, 2019, 7 a.m. N/A N/A 1.1 ppb (1) N/A N/A N/A 21.0 ppb (16) N/A 16.0 μg/m3 (15) 5.9 μg/m3 (25) 25.0
 
July 20, 2019, 6 a.m. N/A N/A 1.1 ppb (1) N/A N/A 0.0 ppb (0) 23.0 ppb (18) 0.19 ppb (2) 19.0 μg/m3 (17) 2.2 μg/m3 (9) 18.0
 
July 20, 2019, 5 a.m. N/A N/A 1.1 ppb (1) N/A N/A 1.0 ppb (1) N/A 0.22 ppb (2) 16.0 μg/m3 (15) 2.0 μg/m3 (8) 15.0
 
July 20, 2019, 4 a.m. N/A N/A 1.0 ppb (1) N/A N/A 1.0 ppb (1) N/A 0.22 ppb (2) 20.0 μg/m3 (18) 2.9 μg/m3 (12) 18.0
 
July 20, 2019, 3 a.m. N/A N/A 1.0 ppb (1) N/A N/A 0.0 ppb (0) 25.0 ppb (19) 0.19 ppb (2) 11.0 μg/m3 (10) 3.0 μg/m3 (12) 19.0
 
July 20, 2019, 2 a.m. N/A N/A 1.0 ppb (1) N/A N/A 0.0 ppb (0) 25.0 ppb (19) 0.16 ppb (2) 19.0 μg/m3 (17) 3.9 μg/m3 (16) 19.0
 
July 20, 2019, 1 a.m. N/A N/A 1.0 ppb (1) N/A N/A 1.0 ppb (1) 25.0 ppb (19) N/A 16.0 μg/m3 (15) 4.9 μg/m3 (20) 20.0
 
July 20, 2019, midnight N/A N/A 1.0 ppb (1) N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.04 ppb (0) 17.0 μg/m3 (15) 5.0 μg/m3 (21) 21.0
 
July 19, 2019, 11 p.m. N/A N/A 1.0 ppb (1) N/A N/A 1.0 ppb (1) 28.0 ppb (22) 0.08 ppb (1) 17.0 μg/m3 (15) 3.1 μg/m3 (13) 22.0
 
July 19, 2019, 10 p.m. N/A N/A 1.1 ppb (1) N/A N/A 1.0 ppb (1) 28.0 ppb (22) 0.09 ppb (1) 18.0 μg/m3 (16) 2.1 μg/m3 (9) 22.0
 
July 19, 2019, 9 p.m. N/A N/A 1.1 ppb (1) N/A N/A 1.0 ppb (1) 29.0 ppb (22) 0.22 ppb (2) 19.0 μg/m3 (17) 1.1 μg/m3 (5) 22.0
 
July 19, 2019, 8 p.m. N/A N/A 1.2 ppb (1) N/A N/A 1.0 ppb (1) 29.0 ppb (22) 0.22 ppb (2) 22.0 μg/m3 (20) 2.9 μg/m3 (12) 22.0
 
July 19, 2019, 7 p.m. N/A N/A 1.3 ppb (1) N/A N/A 1.0 ppb (1) 32.0 ppb (25) 0.16 ppb (2) 23.0 μg/m3 (21) 3.9 μg/m3 (16) 25.0
 
July 19, 2019, 6 p.m. N/A N/A 1.5 ppb (1) N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.12 ppb (1) 21.0 μg/m3 (19) 6.8 μg/m3 (28) 28.0
 
July 19, 2019, 5 p.m. N/A N/A 1.6 ppb (1) N/A N/A 1.0 ppb (1) 30.0 ppb (23) 0.17 ppb (2) 19.0 μg/m3 (17) 6.1 μg/m3 (25) 25.0
 
July 19, 2019, 4 p.m. N/A N/A 1.7 ppb (2) N/A N/A 1.0 ppb (1) 30.0 ppb (23) 0.11 ppb (1) 25.0 μg/m3 (23) 3.2 μg/m3 (13) 23.0
 
July 19, 2019, 3 p.m. N/A N/A 1.9 ppb (2) N/A N/A 1.0 ppb (1) 29.0 ppb (22) 0.07 ppb (1) 24.0 μg/m3 (22) 4.9 μg/m3 (20) 22.0
 
July 19, 2019, 2 p.m. N/A N/A 2.0 ppb (2) N/A N/A 1.0 ppb (1) 26.0 ppb (20) 0.12 ppb (1) 17.0 μg/m3 (15) 5.9 μg/m3 (25) 25.0
 
July 19, 2019, 1 p.m. N/A N/A 2.1 ppb (2) N/A N/A 0.0 ppb (0) 24.0 ppb (18) 0.05 ppb (1) 18.0 μg/m3 (16) 8.8 μg/m3 (37) 37.0
 
July 19, 2019, noon N/A N/A 2.1 ppb (2) N/A N/A 0.0 ppb (0) 21.0 ppb (16) 0.12 ppb (1) 21.0 μg/m3 (19) 10.9 μg/m3 (45) 45.0
 
July 19, 2019, 11 a.m. N/A N/A 2.0 ppb (2) N/A N/A 0.0 ppb (0) 18.0 ppb (14) 0.15 ppb (2) 19.0 μg/m3 (17) 11.0 μg/m3 (46) 46.0
 
July 19, 2019, 10 a.m. N/A N/A 1.8 ppb (2) N/A N/A 1.0 ppb (1) 19.0 ppb (15) 0.16 ppb (2) 19.0 μg/m3 (17) 8.2 μg/m3 (34) 34.0
 
July 19, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (15) 0.18 ppb (2) 20.0 μg/m3 (18) 5.2 μg/m3 (22) 22.0
 
July 19, 2019, 8 a.m. N/A N/A 1.5 ppb (1) N/A N/A 1.0 ppb (1) 19.0 ppb (15) 0.14 ppb (2) 20.0 μg/m3 (18) 5.0 μg/m3 (21) 21.0
 
July 19, 2019, 7 a.m. N/A N/A 1.3 ppb (1) N/A N/A N/A 21.0 ppb (16) N/A 15.0 μg/m3 (14) 5.0 μg/m3 (21) 21.0
 
July 19, 2019, 6 a.m. N/A N/A 1.1 ppb (1) N/A N/A 1.0 ppb (1) 21.0 ppb (16) 0.12 ppb (1) 14.0 μg/m3 (13) 3.1 μg/m3 (13) 16.0
 
July 19, 2019, 5 a.m. N/A N/A 0.9 ppb (1) N/A N/A 1.0 ppb (1) N/A 0.21 ppb (2) 17.0 μg/m3 (15) 4.9 μg/m3 (20) 20.0
 
July 19, 2019, 4 a.m. N/A N/A 0.9 ppb (1) N/A N/A 1.0 ppb (1) N/A 0.24 ppb (3) 12.0 μg/m3 (11) 5.0 μg/m3 (21) 21.0
 
July 19, 2019, 3 a.m. N/A N/A 0.9 ppb (1) N/A N/A 1.0 ppb (1) 21.0 ppb (16) 0.22 ppb (2) 15.0 μg/m3 (14) 4.1 μg/m3 (17) 17.0
 
July 19, 2019, 2 a.m. N/A N/A 0.9 ppb (1) N/A N/A 1.0 ppb (1) 22.0 ppb (17) 0.19 ppb (2) 19.0 μg/m3 (17) 4.9 μg/m3 (20) 20.0
 
July 19, 2019, 1 a.m. N/A N/A 0.9 ppb (1) N/A N/A 1.0 ppb (1) 24.0 ppb (18) N/A 18.0 μg/m3 (16) 5.9 μg/m3 (25) 25.0
 
July 19, 2019, midnight N/A N/A 0.9 ppb (1) N/A N/A 0.0 ppb (0) 25.0 ppb (19) 0.0 ppb (0) 21.0 μg/m3 (19) 6.0 μg/m3 (25) 25.0
 
July 18, 2019, 11 p.m. N/A N/A 1.0 ppb (1) N/A N/A 1.0 ppb (1) 26.0 ppb (20) 0.07 ppb (1) 22.0 μg/m3 (20) 6.0 μg/m3 (25) 25.0
 
July 18, 2019, 10 p.m. N/A N/A 1.0 ppb (1) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.08 ppb (1) 19.0 μg/m3 (17) 5.1 μg/m3 (21) 22.0
 
July 18, 2019, 9 p.m. N/A N/A 1.0 ppb (1) N/A N/A 1.0 ppb (1) 28.0 ppb (22) 0.15 ppb (2) 16.0 μg/m3 (15) 6.9 μg/m3 (29) 29.0
 
July 18, 2019, 8 p.m. N/A N/A 1.1 ppb (1) N/A N/A 1.0 ppb (1) 28.0 ppb (22) 0.16 ppb (2) 15.0 μg/m3 (14) 5.1 μg/m3 (21) 22.0
 
July 18, 2019, 7 p.m. N/A N/A 1.1 ppb (1) N/A N/A 1.0 ppb (1) 27.0 ppb (21) 0.13 ppb (1) 18.0 μg/m3 (16) 4.1 μg/m3 (17) 21.0
 
July 18, 2019, 6 p.m. N/A N/A 1.2 ppb (1) N/A N/A 1.0 ppb (1) 27.0 ppb (21) 0.08 ppb (1) 16.0 μg/m3 (15) 3.1 μg/m3 (13) 21.0
 
July 18, 2019, 5 p.m. N/A N/A 1.3 ppb (1) N/A N/A 1.0 ppb (1) 27.0 ppb (21) 0.16 ppb (2) 16.0 μg/m3 (15) 5.8 μg/m3 (24) 24.0
 
July 18, 2019, 4 p.m. N/A N/A 1.5 ppb (1) N/A N/A 1.0 ppb (1) 27.0 ppb (21) 0.13 ppb (1) 22.0 μg/m3 (20) 8.8 μg/m3 (37) 37.0
 
July 18, 2019, 3 p.m. N/A N/A 1.7 ppb (2) N/A N/A 1.0 ppb (1) 27.0 ppb (21) 0.19 ppb (2) 39.0 μg/m3 (35) 8.1 μg/m3 (34) 35.0
 
July 18, 2019, 2 p.m. N/A N/A 1.7 ppb (2) N/A N/A 1.0 ppb (1) 25.0 ppb (19) 0.14 ppb (2) 30.0 μg/m3 (27) 8.0 μg/m3 (33) 33.0
 
July 18, 2019, 1 p.m. N/A N/A 1.7 ppb (2) N/A N/A 1.0 ppb (1) 22.0 ppb (17) 0.13 ppb (1) 21.0 μg/m3 (19) 9.9 μg/m3 (41) 41.0
 
July 18, 2019, noon N/A N/A 1.7 ppb (2) N/A N/A 0.0 ppb (0) 19.0 ppb (15) 0.2 ppb (2) 21.0 μg/m3 (19) 8.1 μg/m3 (34) 34.0
 
July 18, 2019, 11 a.m. N/A N/A 1.7 ppb (2) N/A N/A 1.0 ppb (1) 18.0 ppb (14) 0.2 ppb (2) 21.0 μg/m3 (19) 6.1 μg/m3 (25) 25.0
 
July 18, 2019, 10 a.m. N/A N/A 1.6 ppb (1) N/A N/A 1.0 ppb (1) 17.0 ppb (13) 0.21 ppb (2) 20.0 μg/m3 (18) 6.0 μg/m3 (25) 25.0
 
July 18, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 17.0 ppb (13) 0.18 ppb (2) 20.0 μg/m3 (18) 7.9 μg/m3 (33) 33.0
 
July 18, 2019, 8 a.m. N/A N/A 1.7 ppb (2) N/A N/A 1.0 ppb (1) 17.0 ppb (13) 0.14 ppb (2) 20.0 μg/m3 (18) 7.1 μg/m3 (30) 30.0
 
July 18, 2019, 7 a.m. N/A N/A 1.5 ppb (1) N/A N/A N/A 17.0 ppb (13) N/A 19.0 μg/m3 (17) 7.0 μg/m3 (29) 29.0
 
July 18, 2019, 6 a.m. N/A N/A 1.2 ppb (1) N/A N/A 0.0 ppb (0) 17.0 ppb (13) 0.06 ppb (1) 14.0 μg/m3 (13) 6.1 μg/m3 (25) 25.0
 
July 18, 2019, 5 a.m. N/A N/A 1.1 ppb (1) N/A N/A 0.0 ppb (0) N/A 0.02 ppb (0) 20.0 μg/m3 (18) 2.2 μg/m3 (9) 18.0
 
July 18, 2019, 4 a.m. N/A N/A 1.1 ppb (1) N/A N/A 0.0 ppb (0) N/A 0.03 ppb (0) 17.0 μg/m3 (15) 4.8 μg/m3 (20) 20.0
 
July 18, 2019, 3 a.m. N/A N/A 1.1 ppb (1) N/A N/A 0.0 ppb (0) 22.0 ppb (17) 0.01 ppb (0) 14.0 μg/m3 (13) 5.0 μg/m3 (21) 21.0
 
July 18, 2019, 2 a.m. N/A N/A 1.1 ppb (1) N/A N/A 0.0 ppb (0) 24.0 ppb (18) 0.0 ppb (0) 17.0 μg/m3 (15) 3.1 μg/m3 (13) 18.0
 
July 18, 2019, 1 a.m. N/A N/A 1.1 ppb (1) N/A N/A 0.0 ppb (0) 24.0 ppb (18) N/A 18.0 μg/m3 (16) 3.0 μg/m3 (12) 18.0
 
July 18, 2019, midnight N/A N/A 1.1 ppb (1) N/A N/A 0.0 ppb (0) 27.0 ppb (21) N/A 13.0 μg/m3 (12) 3.9 μg/m3 (16) 21.0
 
July 17, 2019, 11 p.m. N/A N/A 1.1 ppb (1) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.07 ppb (1) 15.0 μg/m3 (14) 4.9 μg/m3 (20) 21.0
 
July 17, 2019, 10 p.m. N/A N/A 1.2 ppb (1) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.11 ppb (1) 15.0 μg/m3 (14) 4.1 μg/m3 (17) 22.0
 
July 17, 2019, 9 p.m. N/A N/A 1.2 ppb (1) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.13 ppb (1) 14.0 μg/m3 (13) 3.1 μg/m3 (13) 22.0
 
July 17, 2019, 8 p.m. N/A N/A 1.3 ppb (1) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.17 ppb (2) 17.0 μg/m3 (15) 5.8 μg/m3 (24) 24.0
 
July 17, 2019, 7 p.m. N/A N/A 1.4 ppb (1) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.15 ppb (2) 24.0 μg/m3 (22) 6.0 μg/m3 (25) 25.0
 
July 17, 2019, 6 p.m. N/A N/A 1.4 ppb (1) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.1 ppb (1) 23.0 μg/m3 (21) 4.1 μg/m3 (17) 22.0
 
July 17, 2019, 5 p.m. N/A N/A 1.5 ppb (1) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.24 ppb (3) 21.0 μg/m3 (19) 2.1 μg/m3 (9) 22.0
 
July 17, 2019, 4 p.m. N/A N/A 1.6 ppb (1) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.2 ppb (2) 25.0 μg/m3 (23) 3.9 μg/m3 (16) 23.0
 
July 17, 2019, 3 p.m. N/A N/A 1.8 ppb (2) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.14 ppb (2) 22.0 μg/m3 (20) 5.9 μg/m3 (25) 25.0
 
July 17, 2019, 2 p.m. N/A N/A 2.1 ppb (2) N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.16 ppb (2) 24.0 μg/m3 (22) 6.9 μg/m3 (29) 29.0
 
July 17, 2019, 1 p.m. N/A N/A 1.9 ppb (2) N/A N/A 0.0 ppb (0) 23.0 ppb (18) 0.09 ppb (1) 27.0 μg/m3 (25) 3.2 μg/m3 (13) 25.0
 
July 17, 2019, noon N/A N/A 1.9 ppb (2) N/A N/A 0.0 ppb (0) 21.0 ppb (16) 0.12 ppb (1) 25.0 μg/m3 (23) 4.9 μg/m3 (20) 23.0
 
July 17, 2019, 11 a.m. N/A N/A 1.9 ppb (2) N/A N/A 0.0 ppb (0) 15.0 ppb (12) 0.15 ppb (2) 19.0 μg/m3 (17) 7.8 μg/m3 (32) 32.0
 
July 17, 2019, 10 a.m. N/A N/A 1.7 ppb (2) N/A N/A 0.0 ppb (0) 14.0 ppb (11) 0.14 ppb (2) 15.0 μg/m3 (14) 6.1 μg/m3 (25) 25.0
 
July 17, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 13.0 ppb (10) 0.12 ppb (1) 21.0 μg/m3 (19) 5.1 μg/m3 (21) 21.0
 
July 17, 2019, 8 a.m. N/A N/A 1.9 ppb (2) N/A N/A 1.0 ppb (1) 14.0 ppb (11) 0.1 ppb (1) 20.0 μg/m3 (18) 6.9 μg/m3 (29) 29.0
 
July 17, 2019, 7 a.m. N/A N/A 1.9 ppb (2) N/A N/A N/A 14.0 ppb (11) N/A 22.0 μg/m3 (20) 7.9 μg/m3 (33) 33.0
 
July 17, 2019, 6 a.m. N/A N/A 1.7 ppb (2) N/A N/A 0.0 ppb (0) 18.0 ppb (14) 0.07 ppb (1) 18.0 μg/m3 (16) 8.0 μg/m3 (33) 33.0
 
July 17, 2019, 5 a.m. N/A N/A 1.6 ppb (1) N/A N/A 1.0 ppb (1) N/A 0.2 ppb (2) 26.0 μg/m3 (24) 6.1 μg/m3 (25) 25.0
 
July 17, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
July 17, 2019, 3 a.m. N/A N/A 1.5 ppb (1) N/A N/A 1.0 ppb (1) 24.0 ppb (18) 0.23 ppb (3) 22.0 μg/m3 (20) 2.9 μg/m3 (12) 20.0
 
July 17, 2019, 2 a.m. N/A N/A 1.6 ppb (1) N/A N/A 1.0 ppb (1) 24.0 ppb (18) 0.21 ppb (2) 19.0 μg/m3 (17) 3.9 μg/m3 (16) 18.0
 
July 17, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A N/A 15.0
 
July 17, 2019, midnight N/A N/A 1.7 ppb (2) N/A N/A 1.0 ppb (1) 34.0 ppb (26) 0.09 ppb (1) 18.0 μg/m3 (16) 5.9 μg/m3 (25) 26.0
 
July 16, 2019, 11 p.m. N/A N/A 1.7 ppb (2) N/A N/A 1.0 ppb (1) 40.0 ppb (31) 0.14 ppb (2) 18.0 μg/m3 (16) 4.1 μg/m3 (17) 31.0
 
July 16, 2019, 10 p.m. N/A N/A 1.6 ppb (1) N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.15 ppb (2) 22.0 μg/m3 (20) 4.9 μg/m3 (20) 31.0
 
July 16, 2019, 9 p.m. N/A N/A 1.5 ppb (1) N/A N/A 0.0 ppb (0) 41.0 ppb (32) 0.22 ppb (2) 21.0 μg/m3 (19) 3.1 μg/m3 (13) 32.0
 
July 16, 2019, 8 p.m. N/A N/A 1.5 ppb (1) N/A N/A 1.0 ppb (1) 42.0 ppb (32) 0.21 ppb (2) 16.0 μg/m3 (15) 1.1 μg/m3 (5) 32.0
 
July 16, 2019, 7 p.m. N/A N/A 1.4 ppb (1) N/A N/A 1.0 ppb (1) 39.0 ppb (30) 0.14 ppb (2) 16.0 μg/m3 (15) -2.8 μg/m3 (0) 30.0
 
July 16, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A N/A 28.0
 
July 16, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A N/A 26.0
 
July 16, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A N/A 24.0
 
July 16, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
July 16, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
July 16, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A N/A N/A 7.0
 
July 16, 2019, noon N/A N/A 3.6 ppb (3) N/A N/A 0.0 ppb (0) 1.0 ppb (1) 0.23 ppb (3) 10.0 μg/m3 (9) -2.0 μg/m3 (0) 9.0
 
July 16, 2019, 11 a.m. N/A N/A 2.3 ppb (2) N/A N/A 0.0 ppb (0) 2.0 ppb (2) 0.26 ppb (3) 6.0 μg/m3 (5) -2.9 μg/m3 (0) 5.0
 
July 16, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 1.0
 
July 16, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 2.0
 
July 16, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A N/A 1.0
 
July 16, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A N/A 2.0
 
July 16, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A N/A N/A 4.0
 
July 16, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
July 16, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
July 16, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A N/A N/A 11.0
 
July 16, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A N/A 13.0
 
July 16, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A N/A 15.0
 
July 16, 2019, midnight N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A N/A 15.0
 
July 15, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A N/A 16.0
 
July 15, 2019, 10 p.m. N/A N/A 0.6 ppb (1) N/A N/A 0.0 ppb (0) 23.0 ppb (18) 0.02 ppb (0) 8.0 μg/m3 (7) -4.9 μg/m3 (0) 18.0
 
July 15, 2019, 9 p.m. N/A N/A 0.7 ppb (1) N/A N/A 0.0 ppb (0) 23.0 ppb (18) 0.03 ppb (0) 5.0 μg/m3 (5) -2.2 μg/m3 (0) 18.0
 
July 15, 2019, 8 p.m. N/A N/A 0.8 ppb (1) N/A N/A 0.0 ppb (0) 21.0 ppb (16) 0.03 ppb (0) 5.0 μg/m3 (5) -2.0 μg/m3 (0) 16.0
 
July 15, 2019, 7 p.m. N/A N/A 0.9 ppb (1) N/A N/A 0.0 ppb (0) 21.0 ppb (16) 0.02 ppb (0) 6.0 μg/m3 (5) -4.8 μg/m3 (0) 16.0
 
July 15, 2019, 6 p.m. N/A N/A 0.9 ppb (1) N/A N/A 0.0 ppb (0) 24.0 ppb (18) 0.05 ppb (1) 6.0 μg/m3 (5) N/A 18.0
 
July 15, 2019, 5 p.m. N/A N/A 0.9 ppb (1) N/A N/A 0.0 ppb (0) 21.0 ppb (16) 0.03 ppb (0) 7.0 μg/m3 (6) -1.2 μg/m3 (0) 16.0
 
July 15, 2019, 4 p.m. N/A N/A 0.9 ppb (1) N/A N/A 0.0 ppb (0) 20.0 ppb (15) 0.02 ppb (0) 6.0 μg/m3 (5) 1.8 μg/m3 (8) 15.0
 
July 15, 2019, 3 p.m. N/A N/A 0.9 ppb (1) N/A N/A 0.0 ppb (0) 20.0 ppb (15) 0.04 ppb (0) 5.0 μg/m3 (5) 0.1 μg/m3 (0) 15.0
 
July 15, 2019, 2 p.m. N/A N/A 0.9 ppb (1) N/A N/A 0.0 ppb (0) 19.0 ppb (15) 0.05 ppb (1) 6.0 μg/m3 (5) -1.9 μg/m3 (0) 15.0
 
July 15, 2019, 1 p.m. N/A N/A 0.9 ppb (1) N/A N/A 0.0 ppb (0) 19.0 ppb (15) N/A 8.0 μg/m3 (7) -1.1 μg/m3 (0) 15.0
 
July 15, 2019, noon N/A N/A 0.7 ppb (1) N/A N/A 0.0 ppb (0) 21.0 ppb (16) N/A 7.0 μg/m3 (6) -1.0 μg/m3 (0) 16.0
 
July 15, 2019, 11 a.m. N/A N/A 0.7 ppb (1) N/A N/A 0.0 ppb (0) 22.0 ppb (17) N/A 4.0 μg/m3 (4) -1.9 μg/m3 (0) 17.0
 
July 15, 2019, 10 a.m. N/A N/A 0.8 ppb (1) N/A N/A 0.0 ppb (0) 22.0 ppb (17) N/A 7.0 μg/m3 (6) -2.0 μg/m3 (0) 17.0
 
July 15, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (17) 0.09 ppb (1) 7.0 μg/m3 (6) -1.1 μg/m3 (0) 17.0
 
July 15, 2019, 8 a.m. N/A N/A 1.7 ppb (2) N/A N/A 0.0 ppb (0) 21.0 ppb (16) 0.08 ppb (1) 7.0 μg/m3 (6) -0.1 μg/m3 (0) 16.0
 
July 15, 2019, 7 a.m. N/A N/A 1.8 ppb (2) N/A N/A N/A 22.0 ppb (17) N/A 7.0 μg/m3 (6) 0.0 μg/m3 (0) 17.0
 
July 15, 2019, 6 a.m. N/A N/A 0.6 ppb (1) N/A N/A 0.0 ppb (0) 25.0 ppb (19) 0.06 ppb (1) 13.0 μg/m3 (12) -1.0 μg/m3 (0) 19.0
 
July 15, 2019, 5 a.m. N/A N/A 0.5 ppb (0) N/A N/A 0.0 ppb (0) N/A 0.25 ppb (3) 8.0 μg/m3 (7) -0.1 μg/m3 (0) 7.0
 
July 15, 2019, 4 a.m. N/A N/A 0.5 ppb (0) N/A N/A 1.0 ppb (1) N/A 0.25 ppb (3) 6.0 μg/m3 (5) -1.0 μg/m3 (0) 5.0
 
July 15, 2019, 3 a.m. N/A N/A 0.5 ppb (0) N/A N/A 0.0 ppb (0) 25.0 ppb (19) 0.24 ppb (3) 5.0 μg/m3 (5) -2.0 μg/m3 (0) 19.0
 
July 15, 2019, 2 a.m. N/A N/A 0.4 ppb (0) N/A N/A 0.0 ppb (0) 24.0 ppb (18) 0.22 ppb (2) 3.0 μg/m3 (3) -3.9 μg/m3 (0) 18.0
 
July 15, 2019, 1 a.m. N/A N/A 0.4 ppb (0) N/A N/A 1.0 ppb (1) 26.0 ppb (20) 0.2 ppb (2) 4.0 μg/m3 (4) N/A 20.0
 
July 15, 2019, midnight N/A N/A 0.5 ppb (0) N/A N/A 1.0 ppb (1) 28.0 ppb (22) 0.18 ppb (2) 7.0 μg/m3 (6) -0.3 μg/m3 (0) 22.0
 
July 14, 2019, 11 p.m. N/A N/A 0.5 ppb (0) N/A N/A 1.0 ppb (1) 26.0 ppb (20) 0.13 ppb (1) 8.0 μg/m3 (7) 1.0 μg/m3 (4) 20.0
 
July 14, 2019, 10 p.m. N/A N/A 0.5 ppb (0) N/A N/A 1.0 ppb (1) 28.0 ppb (22) 0.13 ppb (1) 6.0 μg/m3 (5) -1.9 μg/m3 (0) 22.0
 
July 14, 2019, 9 p.m. N/A N/A 0.5 ppb (0) N/A N/A 1.0 ppb (1) 30.0 ppb (23) 0.05 ppb (1) 5.0 μg/m3 (5) 0.9 μg/m3 (4) 23.0
 
July 14, 2019, 8 p.m. N/A N/A 0.6 ppb (1) N/A N/A 1.0 ppb (1) 29.0 ppb (22) 0.06 ppb (1) 8.0 μg/m3 (7) 4.8 μg/m3 (20) 22.0
 
July 14, 2019, 7 p.m. N/A N/A 0.7 ppb (1) N/A N/A 1.0 ppb (1) 29.0 ppb (22) 0.04 ppb (0) 9.0 μg/m3 (8) 2.2 μg/m3 (9) 22.0
 
July 14, 2019, 6 p.m. N/A N/A 0.8 ppb (1) N/A N/A 1.0 ppb (1) 27.0 ppb (21) 0.06 ppb (1) 11.0 μg/m3 (10) 1.1 μg/m3 (5) 21.0
 
July 14, 2019, 5 p.m. N/A N/A 0.9 ppb (1) N/A N/A 1.0 ppb (1) 25.0 ppb (19) N/A 8.0 μg/m3 (7) 5.8 μg/m3 (24) 24.0
 
July 14, 2019, 4 p.m. N/A N/A 1.0 ppb (1) N/A N/A 1.0 ppb (1) 24.0 ppb (18) N/A 11.0 μg/m3 (10) 12.7 μg/m3 (51) 51.0
 
July 14, 2019, 3 p.m. N/A N/A 1.0 ppb (1) N/A N/A 1.0 ppb (1) 24.0 ppb (18) N/A 18.0 μg/m3 (16) 6.4 μg/m3 (27) 27.0
 
July 14, 2019, 2 p.m. N/A N/A 1.1 ppb (1) N/A N/A 1.0 ppb (1) 26.0 ppb (20) N/A 15.0 μg/m3 (14) 7.0 μg/m3 (29) 29.0
 
July 14, 2019, 1 p.m. N/A N/A 1.2 ppb (1) N/A N/A 1.0 ppb (1) 27.0 ppb (21) 0.07 ppb (1) 10.0 μg/m3 (9) 7.0 μg/m3 (29) 29.0
 
July 14, 2019, noon N/A N/A 1.2 ppb (1) N/A N/A 1.0 ppb (1) 26.0 ppb (20) 0.11 ppb (1) 13.0 μg/m3 (12) 5.1 μg/m3 (21) 21.0
 
July 14, 2019, 11 a.m. N/A N/A 1.2 ppb (1) N/A N/A 1.0 ppb (1) 27.0 ppb (21) 0.11 ppb (1) 12.0 μg/m3 (11) 4.1 μg/m3 (17) 21.0
 
July 14, 2019, 10 a.m. N/A N/A 1.1 ppb (1) N/A N/A 1.0 ppb (1) 26.0 ppb (20) 0.11 ppb (1) 12.0 μg/m3 (11) 5.0 μg/m3 (21) 21.0
 
July 14, 2019, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 24.0 ppb (18) 0.06 ppb (1) 16.0 μg/m3 (15) 2.2 μg/m3 (9) 18.0
 
July 14, 2019, 8 a.m. N/A N/A 1.2 ppb (1) N/A N/A 1.0 ppb (1) 24.0 ppb (18) 0.04 ppb (0) 13.0 μg/m3 (12) 3.9 μg/m3 (16) 18.0
 
July 14, 2019, 7 a.m. N/A N/A 1.2 ppb (1) N/A N/A N/A 26.0 ppb (20) N/A 17.0 μg/m3 (15) 6.9 μg/m3 (29) 29.0
 
July 14, 2019, 6 a.m. N/A N/A 1.2 ppb (1) N/A N/A 1.0 ppb (1) 28.0 ppb (22) 0.01 ppb (0) 17.0 μg/m3 (15) 6.1 μg/m3 (25) 25.0
 
July 14, 2019, 5 a.m. N/A N/A 1.3 ppb (1) N/A N/A 1.0 ppb (1) N/A 0.22 ppb (2) 16.0 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
July 14, 2019, 4 a.m. N/A N/A 1.3 ppb (1) N/A N/A 0.0 ppb (0) N/A 0.25 ppb (3) 13.0 μg/m3 (12) 2.2 μg/m3 (9) 12.0
 
July 14, 2019, 3 a.m. N/A N/A 1.5 ppb (1) N/A N/A 1.0 ppb (1) 18.0 ppb (14) 0.25 ppb (3) 14.0 μg/m3 (13) 2.0 μg/m3 (8) 14.0
 
July 14, 2019, 2 a.m. N/A N/A 1.4 ppb (1) N/A N/A 1.0 ppb (1) 11.0 ppb (8) 0.23 ppb (3) 15.0 μg/m3 (14) 2.9 μg/m3 (12) 14.0
 
July 14, 2019, 1 a.m. N/A N/A 1.4 ppb (1) N/A N/A 1.0 ppb (1) 19.0 ppb (15) 0.23 ppb (3) 14.0 μg/m3 (13) 3.0 μg/m3 (12) 15.0
 
July 14, 2019, midnight N/A N/A 1.3 ppb (1) N/A N/A 0.0 ppb (0) 25.0 ppb (19) 0.19 ppb (2) 17.0 μg/m3 (15) 3.0 μg/m3 (12) 19.0
 
July 13, 2019, 11 p.m. N/A N/A 1.5 ppb (1) N/A N/A 1.0 ppb (1) 28.0 ppb (22) 0.2 ppb (2) 14.0 μg/m3 (13) 5.8 μg/m3 (24) 24.0
 
July 13, 2019, 10 p.m. N/A N/A 1.6 ppb (1) N/A N/A 0.0 ppb (0) 25.0 ppb (19) 0.19 ppb (2) 13.0 μg/m3 (12) 8.8 μg/m3 (37) 37.0
 
July 13, 2019, 9 p.m. N/A N/A 1.7 ppb (2) N/A N/A 1.0 ppb (1) 31.0 ppb (24) 0.12 ppb (1) 22.0 μg/m3 (20) 7.1 μg/m3 (30) 30.0
 
July 13, 2019, 8 p.m. N/A N/A 1.7 ppb (2) N/A N/A 1.0 ppb (1) 28.0 ppb (22) 0.17 ppb (2) 14.0 μg/m3 (13) 8.9 μg/m3 (37) 37.0
 
July 13, 2019, 7 p.m. N/A N/A 1.8 ppb (2) N/A N/A 1.0 ppb (1) 34.0 ppb (26) 0.14 ppb (2) 23.0 μg/m3 (21) 8.1 μg/m3 (34) 34.0
 
July 13, 2019, 6 p.m. N/A N/A 1.9 ppb (2) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.17 ppb (2) 22.0 μg/m3 (20) 7.1 μg/m3 (30) 30.0
 
July 13, 2019, 5 p.m. N/A N/A 1.9 ppb (2) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.02 ppb (0) 23.0 μg/m3 (21) 8.9 μg/m3 (37) 37.0
 
July 13, 2019, 4 p.m. N/A N/A 2.0 ppb (2) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.02 ppb (0) 24.0 μg/m3 (22) 4.3 μg/m3 (18) 29.0
 
July 13, 2019, 3 p.m. N/A N/A 2.0 ppb (2) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.03 ppb (0) 21.0 μg/m3 (19) 5.9 μg/m3 (25) 26.0
 
July 13, 2019, 2 p.m. N/A N/A 2.9 ppb (3) N/A N/A 0.0 ppb (0) 23.0 ppb (18) 0.14 ppb (2) 18.0 μg/m3 (16) 4.1 μg/m3 (17) 18.0
 
July 13, 2019, 1 p.m. N/A N/A 6.9 ppb (6) N/A N/A 0.0 ppb (0) 11.0 ppb (8) 0.1 ppb (1) 15.0 μg/m3 (14) 4.0 μg/m3 (17) 17.0
 
July 13, 2019, noon N/A N/A 8.9 ppb (8) N/A N/A 0.0 ppb (0) 6.0 ppb (5) 0.1 ppb (1) 15.0 μg/m3 (14) 2.1 μg/m3 (9) 14.0
 
July 13, 2019, 11 a.m. N/A N/A 4.0 ppb (4) N/A N/A 0.0 ppb (0) 6.0 ppb (5) 0.13 ppb (1) 9.0 μg/m3 (8) 0.1 μg/m3 (0) 8.0
 
July 13, 2019, 10 a.m. N/A N/A 4.4 ppb (4) N/A N/A 0.0 ppb (0) 4.0 ppb (3) 0.12 ppb (1) 9.0 μg/m3 (8) 1.9 μg/m3 (8) 8.0
 
July 13, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 5.0 ppb (4) 0.35 ppb (4) 12.0 μg/m3 (11) 3.9 μg/m3 (16) 16.0