AQSQID: 400019009

Site Name: Stilwell Castnet & Ncore

Location: Stilwell (D0869 Rd), OK

Reporting: True, Located: True

Current AQI: 42.0

Stilwell (D0869 Rd) OK, US: 35.750599, -94.669701

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 21, 2020, 1 p.m. N/A N/A 3.4 ppb (3) N/A N/A 1.0 ppb (1) 22.0 ppb (17) 0.12 ppb (1) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 21, 2020, noon N/A N/A 4.3 ppb (4) N/A N/A 1.0 ppb (1) 22.0 ppb (17) 0.17 ppb (2) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 21, 2020, 11 a.m. N/A N/A 5.3 ppb (5) N/A N/A 1.0 ppb (1) 17.0 ppb (13) 0.25 ppb (3) N/A 14.0 μg/m3 (54) 54.0
 
Jan. 21, 2020, 10 a.m. N/A N/A 5.7 ppb (5) N/A N/A 1.0 ppb (1) 12.0 ppb (9) 0.23 ppb (3) N/A 15.0 μg/m3 (56) 56.0
 
Jan. 21, 2020, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 16.0 ppb (12) 0.31 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 21, 2020, 8 a.m. N/A N/A 7.2 ppb (7) N/A N/A 1.0 ppb (1) 17.0 ppb (13) 0.28 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 21, 2020, 7 a.m. N/A N/A 6.7 ppb (6) N/A N/A N/A 17.0 ppb (13) N/A N/A 12.0 μg/m3 (50) 50.0
 
Jan. 21, 2020, 6 a.m. N/A N/A 5.4 ppb (5) N/A N/A 0.0 ppb (0) 21.0 ppb (16) 0.15 ppb (2) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 21, 2020, 5 a.m. N/A N/A 5.3 ppb (5) N/A N/A 0.0 ppb (0) 22.0 ppb (17) 0.01 ppb (0) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 21, 2020, 4 a.m. N/A N/A 5.2 ppb (5) N/A N/A 0.0 ppb (0) 23.0 ppb (18) 0.02 ppb (0) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 21, 2020, 3 a.m. N/A N/A 5.2 ppb (5) N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.07 ppb (1) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 21, 2020, 2 a.m. N/A N/A 5.1 ppb (5) N/A N/A 0.0 ppb (0) 25.0 ppb (19) 0.17 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 21, 2020, 1 a.m. N/A N/A 4.9 ppb (5) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.34 ppb (4) N/A 19.0 μg/m3 (65) 65.0
 
Jan. 21, 2020, midnight N/A N/A 5.1 ppb (5) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.39 ppb (4) N/A 15.0 μg/m3 (56) 56.0
 
Jan. 20, 2020, 11 p.m. N/A N/A 4.7 ppb (4) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.35 ppb (4) N/A 18.0 μg/m3 (63) 63.0
 
Jan. 20, 2020, 10 p.m. N/A N/A 3.2 ppb (3) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.24 ppb (3) N/A 7.0 μg/m3 (29) 30.0
 
Jan. 20, 2020, 9 p.m. N/A N/A 3.0 ppb (3) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.05 ppb (1) N/A 2.0 μg/m3 (8) 29.0
 
Jan. 20, 2020, 8 p.m. N/A N/A 4.5 ppb (4) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.0 ppb (0) N/A 5.0 μg/m3 (21) 28.0
 
Jan. 20, 2020, 7 p.m. N/A N/A 5.2 ppb (5) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.08 ppb (1) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2020, 6 p.m. N/A N/A 5.2 ppb (5) N/A N/A -1.0 ppb (0) 29.0 ppb (22) 0.16 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2020, 5 p.m. N/A N/A 4.9 ppb (5) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.4 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2020, 4 p.m. N/A N/A 4.7 ppb (4) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.31 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 20, 2020, 3 p.m. N/A N/A 4.7 ppb (4) N/A N/A 0.0 ppb (0) 24.0 ppb (18) 0.21 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2020, 2 p.m. N/A N/A 4.4 ppb (4) N/A N/A 0.0 ppb (0) 21.0 ppb (16) 0.16 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 20, 2020, 1 p.m. N/A N/A 2.5 ppb (2) N/A N/A 0.0 ppb (0) 22.0 ppb (17) 0.14 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2020, noon N/A N/A 2.5 ppb (2) N/A N/A 0.0 ppb (0) 24.0 ppb (18) 0.14 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 20, 2020, 11 a.m. N/A N/A 2.7 ppb (3) N/A N/A 0.0 ppb (0) 24.0 ppb (18) 0.14 ppb (2) N/A 4.0 μg/m3 (17) 18.0
 
Jan. 20, 2020, 10 a.m. N/A N/A 2.9 ppb (3) N/A N/A 0.0 ppb (0) 25.0 ppb (19) 0.16 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 20, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (19) 0.13 ppb (1) N/A 4.0 μg/m3 (17) 19.0
 
Jan. 20, 2020, 8 a.m. N/A N/A 2.0 ppb (2) N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.07 ppb (1) N/A 4.0 μg/m3 (17) 20.0
 
Jan. 20, 2020, 7 a.m. N/A N/A 1.7 ppb (2) N/A N/A N/A 28.0 ppb (22) N/A N/A 5.0 μg/m3 (21) 22.0
 
Jan. 20, 2020, 6 a.m. N/A N/A 1.6 ppb (1) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.12 ppb (1) N/A 4.0 μg/m3 (17) 22.0
 
Jan. 20, 2020, 5 a.m. N/A N/A 1.6 ppb (1) N/A N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 4.0 μg/m3 (17) 24.0
 
Jan. 20, 2020, 4 a.m. N/A N/A 1.6 ppb (1) N/A N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 3.0 μg/m3 (12) 25.0
 
Jan. 20, 2020, 3 a.m. N/A N/A 1.6 ppb (1) N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.02 ppb (0) N/A 2.0 μg/m3 (8) 25.0
 
Jan. 20, 2020, 2 a.m. N/A N/A 1.7 ppb (2) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.08 ppb (1) N/A 2.0 μg/m3 (8) 25.0
 
Jan. 20, 2020, 1 a.m. N/A N/A 1.9 ppb (2) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.14 ppb (2) N/A 4.0 μg/m3 (17) 25.0
 
Jan. 20, 2020, midnight N/A N/A 1.3 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.2 ppb (2) N/A 5.0 μg/m3 (21) 28.0
 
Jan. 19, 2020, 11 p.m. N/A N/A 1.4 ppb (1) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.15 ppb (2) N/A 0.0 μg/m3 (0) 28.0
 
Jan. 19, 2020, 10 p.m. N/A N/A 1.6 ppb (1) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.14 ppb (2) N/A -1.0 μg/m3 (0) 28.0
 
Jan. 19, 2020, 9 p.m. N/A N/A 1.8 ppb (2) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.1 ppb (1) N/A 0.0 μg/m3 (0) 29.0
 
Jan. 19, 2020, 8 p.m. N/A N/A 2.1 ppb (2) N/A N/A 1.0 ppb (1) 37.0 ppb (28) 0.1 ppb (1) N/A -1.0 μg/m3 (0) 28.0
 
Jan. 19, 2020, 7 p.m. N/A N/A 2.3 ppb (2) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.11 ppb (1) N/A -3.0 μg/m3 (0) 26.0
 
Jan. 19, 2020, 6 p.m. N/A N/A 2.5 ppb (2) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.22 ppb (2) N/A -2.0 μg/m3 (0) 24.0
 
Jan. 19, 2020, 5 p.m. N/A N/A 2.7 ppb (3) N/A N/A 1.0 ppb (1) 31.0 ppb (24) 0.28 ppb (3) N/A -1.0 μg/m3 (0) 24.0
 
Jan. 19, 2020, 4 p.m. N/A N/A 3.3 ppb (3) N/A N/A 1.0 ppb (1) 30.0 ppb (23) 0.22 ppb (2) N/A 1.0 μg/m3 (4) 23.0
 
Jan. 19, 2020, 3 p.m. N/A N/A 3.9 ppb (4) N/A N/A 1.0 ppb (1) 23.0 ppb (18) 0.16 ppb (2) N/A 3.0 μg/m3 (12) 18.0
 
Jan. 19, 2020, 2 p.m. N/A N/A 4.6 ppb (4) N/A N/A 1.0 ppb (1) 11.0 ppb (8) 0.19 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
Jan. 19, 2020, 1 p.m. N/A N/A 5.0 ppb (5) N/A N/A 1.0 ppb (1) 9.0 ppb (7) 0.19 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 19, 2020, noon N/A N/A 7.3 ppb (7) N/A N/A 1.0 ppb (1) 8.0 ppb (6) 0.19 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2020, 11 a.m. N/A N/A 3.9 ppb (4) N/A N/A 1.0 ppb (1) 13.0 ppb (10) 0.14 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 19, 2020, 10 a.m. N/A N/A 5.4 ppb (5) N/A N/A 1.0 ppb (1) 11.0 ppb (8) 0.15 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 19, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 14.0 ppb (11) 0.08 ppb (1) N/A 3.0 μg/m3 (12) 12.0
 
Jan. 19, 2020, 8 a.m. N/A N/A 2.5 ppb (2) N/A N/A 1.0 ppb (1) 21.0 ppb (16) 0.04 ppb (0) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 19, 2020, 7 a.m. N/A N/A 1.2 ppb (1) N/A N/A N/A 26.0 ppb (20) N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 19, 2020, 6 a.m. N/A N/A 0.9 ppb (1) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.13 ppb (1) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 19, 2020, 5 a.m. N/A N/A 0.9 ppb (1) N/A N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 2.0 μg/m3 (8) 27.0
 
Jan. 19, 2020, 4 a.m. N/A N/A 1.0 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 3.0 μg/m3 (12) 28.0
 
Jan. 19, 2020, 3 a.m. N/A N/A 1.1 ppb (1) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.03 ppb (0) N/A 5.0 μg/m3 (21) 26.0
 
Jan. 19, 2020, 2 a.m. N/A N/A 1.3 ppb (1) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.08 ppb (1) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2020, 1 a.m. N/A N/A 1.2 ppb (1) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.37 ppb (4) N/A 3.0 μg/m3 (12) 27.0
 
Jan. 19, 2020, midnight N/A N/A 1.2 ppb (1) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.45 ppb (5) N/A 1.0 μg/m3 (4) 27.0
 
Jan. 18, 2020, 11 p.m. N/A N/A 1.3 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.45 ppb (5) N/A 3.0 μg/m3 (12) 28.0
 
Jan. 18, 2020, 10 p.m. N/A N/A 1.3 ppb (1) N/A N/A 1.0 ppb (1) 36.0 ppb (28) 0.35 ppb (4) N/A 4.0 μg/m3 (17) 28.0
 
Jan. 18, 2020, 9 p.m. N/A N/A 1.5 ppb (1) N/A N/A 1.0 ppb (1) 37.0 ppb (28) 0.05 ppb (1) N/A 5.0 μg/m3 (21) 28.0
 
Jan. 18, 2020, 8 p.m. N/A N/A 1.7 ppb (2) N/A N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 3.0 μg/m3 (12) 27.0
 
Jan. 18, 2020, 7 p.m. N/A N/A 1.9 ppb (2) N/A N/A 1.0 ppb (1) 29.0 ppb (22) N/A N/A 4.0 μg/m3 (17) 22.0
 
Jan. 18, 2020, 6 p.m. N/A N/A 2.1 ppb (2) N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.02 ppb (0) N/A 2.0 μg/m3 (8) 20.0
 
Jan. 18, 2020, 5 p.m. N/A N/A 2.3 ppb (2) N/A N/A 0.0 ppb (0) 19.0 ppb (15) 0.23 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 18, 2020, 4 p.m. N/A N/A 2.4 ppb (2) N/A N/A 0.0 ppb (0) 15.0 ppb (12) 0.28 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 18, 2020, 3 p.m. N/A N/A 2.4 ppb (2) N/A N/A 1.0 ppb (1) 16.0 ppb (12) 0.23 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 18, 2020, 2 p.m. N/A N/A 2.5 ppb (2) N/A N/A 0.0 ppb (0) 17.0 ppb (13) 0.26 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 18, 2020, 1 p.m. N/A N/A 2.5 ppb (2) N/A N/A 0.0 ppb (0) 16.0 ppb (12) 0.12 ppb (1) N/A 3.0 μg/m3 (12) 12.0
 
Jan. 18, 2020, noon N/A N/A 2.5 ppb (2) N/A N/A 0.0 ppb (0) 16.0 ppb (12) 0.11 ppb (1) N/A 2.0 μg/m3 (8) 12.0
 
Jan. 18, 2020, 11 a.m. N/A N/A 2.4 ppb (2) N/A N/A 1.0 ppb (1) 17.0 ppb (13) 0.08 ppb (1) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 18, 2020, 10 a.m. N/A N/A 2.2 ppb (2) N/A N/A 1.0 ppb (1) 18.0 ppb (14) 0.11 ppb (1) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 18, 2020, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 19.0 ppb (15) 0.07 ppb (1) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 18, 2020, 8 a.m. N/A N/A 2.2 ppb (2) N/A N/A 0.0 ppb (0) 18.0 ppb (14) 0.16 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 18, 2020, 7 a.m. N/A N/A 2.3 ppb (2) N/A N/A N/A 17.0 ppb (13) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 18, 2020, 6 a.m. N/A N/A 2.4 ppb (2) N/A N/A 0.0 ppb (0) 17.0 ppb (13) 0.19 ppb (2) N/A N/A 13.0
 
Jan. 18, 2020, 5 a.m. N/A N/A 2.6 ppb (2) N/A N/A 0.0 ppb (0) 17.0 ppb (13) 0.29 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 18, 2020, 4 a.m. N/A N/A 2.7 ppb (3) N/A N/A 0.0 ppb (0) 18.0 ppb (14) 0.27 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 18, 2020, 3 a.m. N/A N/A 2.8 ppb (3) N/A N/A 0.0 ppb (0) 18.0 ppb (14) 0.23 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 18, 2020, 2 a.m. N/A N/A 2.9 ppb (3) N/A N/A 0.0 ppb (0) 19.0 ppb (15) 0.19 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 18, 2020, 1 a.m. N/A N/A 3.0 ppb (3) N/A N/A 0.0 ppb (0) 19.0 ppb (15) 0.2 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 18, 2020, midnight N/A N/A 3.0 ppb (3) N/A N/A 1.0 ppb (1) 20.0 ppb (15) 0.19 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2020, 11 p.m. N/A N/A 3.1 ppb (3) N/A N/A 1.0 ppb (1) 20.0 ppb (15) 0.15 ppb (2) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 17, 2020, 10 p.m. N/A N/A 3.1 ppb (3) N/A N/A 1.0 ppb (1) 21.0 ppb (16) 0.14 ppb (2) N/A N/A 16.0
 
Jan. 17, 2020, 9 p.m. N/A N/A 3.0 ppb (3) N/A N/A 1.0 ppb (1) 21.0 ppb (16) 0.15 ppb (2) N/A N/A 16.0
 
Jan. 17, 2020, 8 p.m. N/A N/A 2.8 ppb (3) N/A N/A 1.0 ppb (1) 22.0 ppb (17) 0.18 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 17, 2020, 7 p.m. N/A N/A 2.5 ppb (2) N/A N/A 0.0 ppb (0) 23.0 ppb (18) 0.18 ppb (2) N/A 1.0 μg/m3 (4) 18.0
 
Jan. 17, 2020, 6 p.m. N/A N/A 2.2 ppb (2) N/A N/A 1.0 ppb (1) 24.0 ppb (18) 0.16 ppb (2) N/A 2.0 μg/m3 (8) 18.0
 
Jan. 17, 2020, 5 p.m. N/A N/A 1.9 ppb (2) N/A N/A 0.0 ppb (0) 25.0 ppb (19) 0.06 ppb (1) N/A 2.0 μg/m3 (8) 19.0
 
Jan. 17, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A N/A 22.0
 
Jan. 17, 2020, 3 p.m. N/A N/A 1.3 ppb (1) N/A N/A 1.0 ppb (1) 28.0 ppb (22) 0.09 ppb (1) N/A 2.0 μg/m3 (8) 22.0
 
Jan. 17, 2020, 2 p.m. N/A N/A 1.1 ppb (1) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.11 ppb (1) N/A 1.0 μg/m3 (4) 23.0
 
Jan. 17, 2020, 1 p.m. N/A N/A 0.9 ppb (1) N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.08 ppb (1) N/A 1.0 μg/m3 (4) 25.0
 
Jan. 17, 2020, noon N/A N/A 0.7 ppb (1) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.09 ppb (1) N/A 1.0 μg/m3 (4) 26.0
 
Jan. 17, 2020, 11 a.m. N/A N/A 0.6 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.1 ppb (1) N/A 1.0 μg/m3 (4) 28.0
 
Jan. 17, 2020, 10 a.m. N/A N/A 0.5 ppb (0) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.11 ppb (1) N/A -2.0 μg/m3 (0) 29.0
 
Jan. 17, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A N/A 30.0
 
Jan. 17, 2020, 8 a.m. N/A N/A 0.9 ppb (1) N/A N/A 0.0 ppb (0) 41.0 ppb (32) 0.04 ppb (0) N/A -1.0 μg/m3 (0) 32.0
 
Jan. 17, 2020, 7 a.m. N/A N/A 1.0 ppb (1) N/A N/A N/A 40.0 ppb (31) N/A N/A 2.0 μg/m3 (8) 31.0
 
Jan. 17, 2020, 6 a.m. N/A N/A 1.1 ppb (1) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.1 ppb (1) N/A 1.0 μg/m3 (4) 30.0
 
Jan. 17, 2020, 5 a.m. N/A N/A 1.2 ppb (1) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.16 ppb (2) N/A -4.0 μg/m3 (0) 28.0
 
Jan. 17, 2020, 4 a.m. N/A N/A 1.5 ppb (1) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.13 ppb (1) N/A -2.0 μg/m3 (0) 26.0
 
Jan. 17, 2020, 3 a.m. N/A N/A 1.7 ppb (2) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.11 ppb (1) N/A -1.0 μg/m3 (0) 25.0
 
Jan. 17, 2020, 2 a.m. N/A N/A 2.0 ppb (2) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.09 ppb (1) N/A 1.0 μg/m3 (4) 23.0
 
Jan. 17, 2020, 1 a.m. N/A N/A 2.3 ppb (2) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.09 ppb (1) N/A 3.0 μg/m3 (12) 22.0
 
Jan. 17, 2020, midnight N/A N/A 2.6 ppb (2) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.07 ppb (1) N/A 4.0 μg/m3 (17) 21.0
 
Jan. 16, 2020, 11 p.m. N/A N/A 2.7 ppb (3) N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.07 ppb (1) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 16, 2020, 10 p.m. N/A N/A 2.9 ppb (3) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.05 ppb (1) N/A -3.0 μg/m3 (0) 22.0
 
Jan. 16, 2020, 9 p.m. N/A N/A 3.1 ppb (3) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.21 ppb (2) N/A 2.0 μg/m3 (8) 21.0
 
Jan. 16, 2020, 8 p.m. N/A N/A 3.3 ppb (3) N/A N/A 0.0 ppb (0) 25.0 ppb (19) 0.32 ppb (4) N/A 3.0 μg/m3 (12) 19.0
 
Jan. 16, 2020, 7 p.m. N/A N/A 3.5 ppb (3) N/A N/A 0.0 ppb (0) 25.0 ppb (19) 0.32 ppb (4) N/A 2.0 μg/m3 (8) 19.0
 
Jan. 16, 2020, 6 p.m. N/A N/A 3.7 ppb (3) N/A N/A 0.0 ppb (0) 24.0 ppb (18) 0.31 ppb (3) N/A 4.0 μg/m3 (17) 18.0
 
Jan. 16, 2020, 5 p.m. N/A N/A 3.8 ppb (4) N/A N/A 0.0 ppb (0) 23.0 ppb (18) 0.15 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 16, 2020, 4 p.m. N/A N/A 4.1 ppb (4) N/A N/A 0.0 ppb (0) 22.0 ppb (17) 0.16 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2020, 3 p.m. N/A N/A 4.6 ppb (4) N/A N/A 0.0 ppb (0) 21.0 ppb (16) 0.18 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 16, 2020, 2 p.m. N/A N/A 4.8 ppb (4) N/A N/A 0.0 ppb (0) 16.0 ppb (12) 0.17 ppb (2) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 16, 2020, 1 p.m. N/A N/A 4.7 ppb (4) N/A N/A 0.0 ppb (0) 16.0 ppb (12) 0.41 ppb (5) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 16, 2020, noon N/A N/A 4.6 ppb (4) N/A N/A 0.0 ppb (0) 16.0 ppb (12) 0.46 ppb (5) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 16, 2020, 11 a.m. N/A N/A 4.5 ppb (4) N/A N/A 0.0 ppb (0) 16.0 ppb (12) 0.46 ppb (5) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 16, 2020, 10 a.m. N/A N/A 4.4 ppb (4) N/A N/A 0.0 ppb (0) 17.0 ppb (13) 0.41 ppb (5) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 16, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 17.0 ppb (13) 0.14 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 16, 2020, 8 a.m. N/A N/A 3.8 ppb (4) N/A N/A 0.0 ppb (0) 20.0 ppb (15) 0.12 ppb (1) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 16, 2020, 7 a.m. N/A N/A 3.9 ppb (4) N/A N/A N/A 18.0 ppb (14) N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 16, 2020, 6 a.m. N/A N/A 4.4 ppb (4) N/A N/A 0.0 ppb (0) 18.0 ppb (14) 0.1 ppb (1) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 16, 2020, 5 a.m. N/A N/A 5.6 ppb (5) N/A N/A 0.0 ppb (0) 17.0 ppb (13) 0.17 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 16, 2020, 4 a.m. N/A N/A 5.6 ppb (5) N/A N/A 0.0 ppb (0) 15.0 ppb (12) 0.14 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 16, 2020, 3 a.m. N/A N/A 4.3 ppb (4) N/A N/A 1.0 ppb (1) 17.0 ppb (13) 0.12 ppb (1) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 16, 2020, 2 a.m. N/A N/A 3.8 ppb (4) N/A N/A 0.0 ppb (0) 18.0 ppb (14) 0.09 ppb (1) N/A 13.0 μg/m3 (52) 52.0
 
Jan. 16, 2020, 1 a.m. N/A N/A 3.6 ppb (3) N/A N/A 1.0 ppb (1) 21.0 ppb (16) 0.16 ppb (2) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 16, 2020, midnight N/A N/A 3.3 ppb (3) N/A N/A 1.0 ppb (1) 22.0 ppb (17) 0.17 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 15, 2020, 11 p.m. N/A N/A 3.1 ppb (3) N/A N/A 1.0 ppb (1) 22.0 ppb (17) 0.11 ppb (1) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 15, 2020, 10 p.m. N/A N/A 2.8 ppb (3) N/A N/A 1.0 ppb (1) 24.0 ppb (18) 0.07 ppb (1) N/A 4.0 μg/m3 (17) 18.0
 
Jan. 15, 2020, 9 p.m. N/A N/A 2.7 ppb (3) N/A N/A 1.0 ppb (1) 28.0 ppb (22) 0.11 ppb (1) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 15, 2020, 8 p.m. N/A N/A 2.6 ppb (2) N/A N/A 2.0 ppb (3) 28.0 ppb (22) 0.15 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 15, 2020, 7 p.m. N/A N/A 2.4 ppb (2) N/A N/A 1.0 ppb (1) 28.0 ppb (22) 0.15 ppb (2) N/A 4.0 μg/m3 (17) 22.0
 
Jan. 15, 2020, 6 p.m. N/A N/A 2.4 ppb (2) N/A N/A 1.0 ppb (1) 26.0 ppb (20) 0.15 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2020, 5 p.m. N/A N/A 2.4 ppb (2) N/A N/A 1.0 ppb (1) 19.0 ppb (15) N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 15, 2020, 4 p.m. N/A N/A 2.4 ppb (2) N/A N/A 1.0 ppb (1) 14.0 ppb (11) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 15, 2020, 3 p.m. N/A N/A 2.1 ppb (2) N/A N/A 1.0 ppb (1) 14.0 ppb (11) 0.01 ppb (0) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2020, 2 p.m. N/A N/A 2.0 ppb (2) N/A N/A 0.0 ppb (0) 16.0 ppb (12) 0.06 ppb (1) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2020, 1 p.m. N/A N/A 2.0 ppb (2) N/A N/A 0.0 ppb (0) 17.0 ppb (13) 0.12 ppb (1) N/A 3.0 μg/m3 (12) 13.0
 
Jan. 15, 2020, noon N/A N/A 1.9 ppb (2) N/A N/A 0.0 ppb (0) 18.0 ppb (14) 0.17 ppb (2) N/A 2.0 μg/m3 (8) 14.0
 
Jan. 15, 2020, 11 a.m. N/A N/A 1.9 ppb (2) N/A N/A 0.0 ppb (0) 17.0 ppb (13) 0.15 ppb (2) N/A 1.0 μg/m3 (4) 13.0
 
Jan. 15, 2020, 10 a.m. N/A N/A 1.9 ppb (2) N/A N/A 0.0 ppb (0) 16.0 ppb (12) 0.19 ppb (2) N/A 0.0 μg/m3 (0) 12.0
 
Jan. 15, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 16.0 ppb (12) 0.26 ppb (3) N/A 3.0 μg/m3 (12) 12.0
 
Jan. 15, 2020, 8 a.m. N/A N/A 2.3 ppb (2) N/A N/A 0.0 ppb (0) 17.0 ppb (13) 0.28 ppb (3) N/A 3.0 μg/m3 (12) 13.0
 
Jan. 15, 2020, 7 a.m. N/A N/A 2.4 ppb (2) N/A N/A N/A 17.0 ppb (13) N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 15, 2020, 6 a.m. N/A N/A 2.5 ppb (2) N/A N/A 0.0 ppb (0) 18.0 ppb (14) 0.34 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 15, 2020, 5 a.m. N/A N/A 2.5 ppb (2) N/A N/A 1.0 ppb (1) 18.0 ppb (14) 0.13 ppb (1) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 15, 2020, 4 a.m. N/A N/A 2.5 ppb (2) N/A N/A 0.0 ppb (0) 18.0 ppb (14) 0.09 ppb (1) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2020, 3 a.m. N/A N/A 2.4 ppb (2) N/A N/A 1.0 ppb (1) 19.0 ppb (15) 0.09 ppb (1) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2020, 2 a.m. N/A N/A 2.5 ppb (2) N/A N/A 1.0 ppb (1) 21.0 ppb (16) 0.07 ppb (1) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2020, 1 a.m. N/A N/A 2.7 ppb (3) N/A N/A 1.0 ppb (1) 23.0 ppb (18) 0.07 ppb (1) N/A 3.0 μg/m3 (12) 18.0
 
Jan. 15, 2020, midnight N/A N/A 2.8 ppb (3) N/A N/A 0.0 ppb (0) 22.0 ppb (17) 0.1 ppb (1) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 14, 2020, 11 p.m. N/A N/A 2.6 ppb (2) N/A N/A 1.0 ppb (1) 23.0 ppb (18) 0.08 ppb (1) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 14, 2020, 10 p.m. N/A N/A 2.5 ppb (2) N/A N/A 1.0 ppb (1) 27.0 ppb (21) 0.04 ppb (0) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 14, 2020, 9 p.m. N/A N/A 2.4 ppb (2) N/A N/A 1.0 ppb (1) 28.0 ppb (22) 0.21 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 14, 2020, 8 p.m. N/A N/A 2.1 ppb (2) N/A N/A 1.0 ppb (1) 24.0 ppb (18) 0.23 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 14, 2020, 7 p.m. N/A N/A 2.0 ppb (2) N/A N/A 1.0 ppb (1) 25.0 ppb (19) 0.24 ppb (3) N/A 3.0 μg/m3 (12) 19.0
 
Jan. 14, 2020, 6 p.m. N/A N/A 2.1 ppb (2) N/A N/A 1.0 ppb (1) 21.0 ppb (16) 0.25 ppb (3) N/A 3.0 μg/m3 (12) 16.0
 
Jan. 14, 2020, 5 p.m. N/A N/A 2.5 ppb (2) N/A N/A 1.0 ppb (1) 17.0 ppb (13) 0.25 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 14, 2020, 4 p.m. N/A N/A 4.0 ppb (4) N/A N/A 1.0 ppb (1) 14.0 ppb (11) 0.26 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 14, 2020, 3 p.m. N/A N/A 3.9 ppb (4) N/A N/A 1.0 ppb (1) 12.0 ppb (9) 0.31 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 14, 2020, 2 p.m. N/A N/A 3.3 ppb (3) N/A N/A 1.0 ppb (1) 8.0 ppb (6) 0.37 ppb (4) N/A 5.0 μg/m3 (21) 21.0