ID: 1057

AQSQID: 400019009

Site Name: Stilwell Castnet & Ncore

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

Updated: Oct. 24, 2021, 9:59 a.m.

Location: Stilwell (D0869 Rd), OK

Reporting: True, Located: True

Current AQI: 28.0

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
Oct. 24, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.34 ppb (4) 11.0 μg/m3 (11) 6.0 μg/m3 (25) 28.0
 
Oct. 24, 2021, 7 a.m. N/A 0.3 ppb (1) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.33 ppb (4) 10.0 μg/m3 (10) 8.0 μg/m3 (34) 34.0
 
Oct. 24, 2021, 6 a.m. N/A 0.2 ppb (1) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.35 ppb (4) 13.0 μg/m3 (13) 7.0 μg/m3 (30) 30.0
 
Oct. 24, 2021, 5 a.m. N/A 0.2 ppb (1) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.34 ppb (4) 15.0 μg/m3 (14) 8.0 μg/m3 (34) 34.0
 
Oct. 24, 2021, 4 a.m. N/A 0.2 ppb (1) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.34 ppb (4) 13.0 μg/m3 (13) 9.0 μg/m3 (38) 38.0
 
Oct. 24, 2021, 3 a.m. N/A 0.1 ppb (1) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.35 ppb (4) 14.0 μg/m3 (13) 6.0 μg/m3 (25) 28.0
 
Oct. 24, 2021, 2 a.m. N/A 0.1 ppb (1) 1.1 ppb (2) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.35 ppb (4) 10.0 μg/m3 (10) 7.0 μg/m3 (30) 30.0
 
Oct. 24, 2021, 1 a.m. N/A 0.2 ppb (1) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.35 ppb (4) 9.0 μg/m3 (9) 7.0 μg/m3 (30) 34.0
 
Oct. 24, 2021, midnight N/A 0.2 ppb (1) 0.8 ppb (1) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.31 ppb (4) 12.0 μg/m3 (12) 6.0 μg/m3 (25) 35.0
 
Oct. 23, 2021, 11 p.m. N/A 0.2 ppb (1) 0.8 ppb (1) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.29 ppb (4) 8.0 μg/m3 (8) 3.0 μg/m3 (13) 35.0
 
Oct. 23, 2021, 10 p.m. N/A 0.2 ppb (1) 0.8 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.25 ppb (3) 9.0 μg/m3 (9) 3.0 μg/m3 (13) 36.0
 
Oct. 23, 2021, 9 p.m. N/A 0.2 ppb (1) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.24 ppb (3) 11.0 μg/m3 (11) 3.0 μg/m3 (13) 34.0
 
Oct. 23, 2021, 8 p.m. N/A 0.2 ppb (1) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.22 ppb (3) 9.0 μg/m3 (9) 3.0 μg/m3 (13) 35.0
 
Oct. 23, 2021, 7 p.m. N/A 0.2 ppb (1) 1.2 ppb (2) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.23 ppb (3) 13.0 μg/m3 (13) 2.0 μg/m3 (9) 38.0
 
Oct. 23, 2021, 6 p.m. N/A 0.2 ppb (1) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 41.0 ppb (38) 0.24 ppb (3) 10.0 μg/m3 (10) 1.0 μg/m3 (5) 38.0
 
Oct. 23, 2021, 5 p.m. N/A 0.2 ppb (1) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.3 ppb (4) 11.0 μg/m3 (11) 4.0 μg/m3 (17) 39.0
 
Oct. 23, 2021, 4 p.m. N/A 0.2 ppb (1) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.31 ppb (4) 10.0 μg/m3 (10) 6.0 μg/m3 (25) 39.0
 
Oct. 23, 2021, 3 p.m. N/A 0.2 ppb (1) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.34 ppb (4) 12.0 μg/m3 (12) 6.0 μg/m3 (25) 36.0
 
Oct. 23, 2021, 2 p.m. N/A 0.2 ppb (1) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.37 ppb (5) 11.0 μg/m3 (11) 4.0 μg/m3 (17) 34.0
 
Oct. 23, 2021, 1 p.m. N/A 0.1 ppb (1) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.39 ppb (5) 19.0 μg/m3 (18) 3.0 μg/m3 (13) 33.0
 
Oct. 23, 2021, noon N/A 0.1 ppb (1) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.38 ppb (5) 13.0 μg/m3 (13) 6.0 μg/m3 (25) 33.0
 
Oct. 23, 2021, 11 a.m. N/A 0.2 ppb (1) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.38 ppb (5) 15.0 μg/m3 (14) 7.0 μg/m3 (30) 33.0
 
Oct. 23, 2021, 10 a.m. N/A 0.2 ppb (1) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.32 ppb (4) 16.0 μg/m3 (15) 3.0 μg/m3 (13) 34.0
 
Oct. 23, 2021, 9 a.m. N/A 0.2 ppb (1) 1.1 ppb (2) N/A N/A N/A 36.0 ppb (34) N/A 16.0 μg/m3 (15) 2.0 μg/m3 (9) 34.0
 
Oct. 23, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.36 ppb (5) 17.0 μg/m3 (16) 3.0 μg/m3 (13) 34.0
 
Oct. 23, 2021, 7 a.m. N/A 0.1 ppb (1) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.37 ppb (5) 17.0 μg/m3 (16) 4.0 μg/m3 (17) 33.0
 
Oct. 23, 2021, 6 a.m. N/A 0.1 ppb (1) 1.6 ppb (2) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.37 ppb (5) 15.0 μg/m3 (14) 5.0 μg/m3 (21) 35.0
 
Oct. 23, 2021, 5 a.m. N/A 0.1 ppb (1) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.38 ppb (5) 18.0 μg/m3 (17) 6.0 μg/m3 (25) 35.0
 
Oct. 23, 2021, 4 a.m. N/A 0.2 ppb (1) 1.8 ppb (2) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.38 ppb (5) 16.0 μg/m3 (15) 6.0 μg/m3 (25) 34.0
 
Oct. 23, 2021, 3 a.m. N/A 0.2 ppb (1) 1.8 ppb (2) N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.37 ppb (5) 22.0 μg/m3 (21) 8.0 μg/m3 (34) 36.0
 
Oct. 23, 2021, 2 a.m. N/A 0.1 ppb (1) 1.8 ppb (2) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.42 ppb (5) 44.0 μg/m3 (41) 9.0 μg/m3 (38) 41.0
 
Oct. 23, 2021, 1 a.m. N/A 0.1 ppb (1) 1.6 ppb (2) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.39 ppb (5) 21.0 μg/m3 (20) 6.0 μg/m3 (25) 37.0
 
Oct. 23, 2021, midnight N/A 0.2 ppb (1) 1.6 ppb (2) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.36 ppb (5) 16.0 μg/m3 (15) 8.0 μg/m3 (34) 39.0
 
Oct. 22, 2021, 11 p.m. N/A 0.2 ppb (1) 1.6 ppb (2) N/A N/A 0.0 ppb (0) 46.0 ppb (43) 0.32 ppb (4) 19.0 μg/m3 (18) 3.0 μg/m3 (13) 43.0
 
Oct. 22, 2021, 10 p.m. N/A 0.3 ppb (1) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 50.0 ppb (47) 0.3 ppb (4) 16.0 μg/m3 (15) 1.0 μg/m3 (5) 47.0
 
Oct. 22, 2021, 9 p.m. N/A 0.3 ppb (1) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 52.0 ppb (49) 0.28 ppb (4) 19.0 μg/m3 (18) 0.0 μg/m3 (0) 49.0
 
Oct. 22, 2021, 8 p.m. N/A 0.3 ppb (1) 1.2 ppb (2) N/A N/A 0.0 ppb (0) 50.0 ppb (47) 0.24 ppb (3) 11.0 μg/m3 (11) 1.0 μg/m3 (5) 47.0
 
Oct. 22, 2021, 7 p.m. N/A 0.3 ppb (1) 1.2 ppb (2) N/A N/A 0.0 ppb (0) 47.0 ppb (44) 0.23 ppb (3) 7.0 μg/m3 (7) -1.0 μg/m3 (0) 44.0
 
Oct. 22, 2021, 6 p.m. N/A 0.4 ppb (1) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 41.0 ppb (38) 0.24 ppb (3) 12.0 μg/m3 (12) 0.0 μg/m3 (0) 38.0
 
Oct. 22, 2021, 5 p.m. N/A 0.5 ppb (1) 1.6 ppb (2) N/A N/A 1.0 ppb (2) 40.0 ppb (38) 0.24 ppb (3) 10.0 μg/m3 (10) -2.0 μg/m3 (0) 38.0
 
Oct. 22, 2021, 4 p.m. N/A 0.5 ppb (1) 1.8 ppb (2) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.27 ppb (4) 14.0 μg/m3 (13) -3.0 μg/m3 (0) 35.0
 
Oct. 22, 2021, 3 p.m. N/A 0.6 ppb (1) 2.1 ppb (2) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.31 ppb (4) 19.0 μg/m3 (18) 3.0 μg/m3 (13) 26.0
 
Oct. 22, 2021, 2 p.m. N/A 0.6 ppb (1) 2.2 ppb (3) N/A N/A 0.0 ppb (0) 16.0 ppb (15) 0.37 ppb (5) 19.0 μg/m3 (18) 7.0 μg/m3 (30) 30.0
 
Oct. 22, 2021, 1 p.m. N/A 0.4 ppb (1) 2.1 ppb (2) N/A N/A 0.0 ppb (0) 7.0 ppb (7) 0.38 ppb (5) 13.0 μg/m3 (13) 5.0 μg/m3 (21) 21.0
 
Oct. 22, 2021, noon N/A 0.2 ppb (1) 1.9 ppb (2) N/A N/A 0.0 ppb (0) 6.0 ppb (6) 0.39 ppb (5) 10.0 μg/m3 (10) -1.0 μg/m3 (0) 10.0
 
Oct. 22, 2021, 11 a.m. N/A 0.2 ppb (1) 1.9 ppb (2) N/A N/A 0.0 ppb (0) 5.0 ppb (5) 0.37 ppb (5) 4.0 μg/m3 (4) 0.0 μg/m3 (0) 5.0
 
Oct. 22, 2021, 10 a.m. N/A 0.2 ppb (1) 1.9 ppb (2) N/A N/A 0.0 ppb (0) 6.0 ppb (6) 0.31 ppb (4) 7.0 μg/m3 (7) 1.0 μg/m3 (5) 7.0
 
Oct. 22, 2021, 9 a.m. N/A 0.2 ppb (1) 1.7 ppb (2) N/A N/A N/A 9.0 ppb (9) N/A 10.0 μg/m3 (10) 0.0 μg/m3 (0) 10.0
 
Oct. 22, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 7.0 ppb (7) 0.36 ppb (5) 5.0 μg/m3 (5) 0.0 μg/m3 (0) 7.0
 
Oct. 22, 2021, 7 a.m. N/A 0.2 ppb (1) 2.6 ppb (3) N/A N/A 0.0 ppb (0) 7.0 ppb (7) 0.37 ppb (5) 7.0 μg/m3 (7) 3.0 μg/m3 (13) 13.0
 
Oct. 22, 2021, 6 a.m. N/A 0.2 ppb (1) 2.5 ppb (3) N/A N/A 0.0 ppb (0) 9.0 ppb (9) 0.38 ppb (5) 7.0 μg/m3 (7) 3.0 μg/m3 (13) 13.0
 
Oct. 22, 2021, 5 a.m. N/A 0.2 ppb (1) 2.8 ppb (3) N/A N/A 0.0 ppb (0) 12.0 ppb (12) 0.38 ppb (5) 10.0 μg/m3 (10) 2.0 μg/m3 (9) 12.0
 
Oct. 22, 2021, 4 a.m. N/A 0.2 ppb (1) 3.8 ppb (4) N/A N/A 0.0 ppb (0) 13.0 ppb (13) 0.39 ppb (5) 13.0 μg/m3 (13) 4.0 μg/m3 (17) 17.0
 
Oct. 22, 2021, 3 a.m. N/A 0.3 ppb (1) 5.0 ppb (5) N/A N/A 0.0 ppb (0) 12.0 ppb (12) 0.4 ppb (5) 10.0 μg/m3 (10) 6.0 μg/m3 (25) 25.0
 
Oct. 22, 2021, 2 a.m. N/A 0.3 ppb (1) 4.3 ppb (5) N/A N/A 0.0 ppb (0) 15.0 ppb (14) 0.39 ppb (5) 10.0 μg/m3 (10) 4.0 μg/m3 (17) 17.0
 
Oct. 22, 2021, 1 a.m. N/A 0.2 ppb (1) 3.0 ppb (3) N/A N/A 0.0 ppb (0) 19.0 ppb (18) 0.39 ppb (5) 9.0 μg/m3 (9) 1.0 μg/m3 (5) 18.0
 
Oct. 22, 2021, midnight N/A 0.2 ppb (1) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.33 ppb (4) 10.0 μg/m3 (10) 0.0 μg/m3 (0) 26.0
 
Oct. 21, 2021, 11 p.m. N/A 0.2 ppb (1) 0.8 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.3 ppb (4) 14.0 μg/m3 (13) 1.0 μg/m3 (5) 36.0
 
Oct. 21, 2021, 10 p.m. N/A 0.2 ppb (1) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.29 ppb (4) 9.0 μg/m3 (9) -1.0 μg/m3 (0) 38.0
 
Oct. 21, 2021, 9 p.m. N/A 0.2 ppb (1) 0.8 ppb (1) N/A N/A 1.0 ppb (2) 41.0 ppb (38) 0.27 ppb (4) 10.0 μg/m3 (10) 0.0 μg/m3 (0) 38.0
 
Oct. 21, 2021, 8 p.m. N/A 0.2 ppb (1) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.26 ppb (4) 13.0 μg/m3 (13) 5.0 μg/m3 (21) 38.0
 
Oct. 21, 2021, 7 p.m. N/A 0.3 ppb (1) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.24 ppb (3) 6.0 μg/m3 (6) 1.0 μg/m3 (5) 38.0
 
Oct. 21, 2021, 6 p.m. N/A 0.3 ppb (1) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.24 ppb (3) 6.0 μg/m3 (6) -1.0 μg/m3 (0) 37.0
 
Oct. 21, 2021, 5 p.m. N/A 0.3 ppb (1) 0.8 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.27 ppb (4) 7.0 μg/m3 (7) -1.0 μg/m3 (0) 34.0
 
Oct. 21, 2021, 4 p.m. N/A 0.4 ppb (1) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.28 ppb (4) 4.0 μg/m3 (4) -2.0 μg/m3 (0) 30.0
 
Oct. 21, 2021, 3 p.m. N/A 0.4 ppb (1) 1.1 ppb (2) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.3 ppb (4) 8.0 μg/m3 (8) -2.0 μg/m3 (0) 27.0
 
Oct. 21, 2021, 2 p.m. N/A 0.4 ppb (1) 1.6 ppb (2) N/A N/A 0.0 ppb (0) 22.0 ppb (21) 0.33 ppb (4) 13.0 μg/m3 (13) -2.0 μg/m3 (0) 21.0
 
Oct. 21, 2021, 1 p.m. N/A 0.3 ppb (1) 2.1 ppb (2) N/A N/A 0.0 ppb (0) 17.0 ppb (16) 0.35 ppb (4) 21.0 μg/m3 (20) -2.0 μg/m3 (0) 20.0
 
Oct. 21, 2021, noon N/A 0.3 ppb (1) 2.4 ppb (3) N/A N/A 0.0 ppb (0) 17.0 ppb (16) 0.36 ppb (5) 12.0 μg/m3 (12) -1.0 μg/m3 (0) 16.0
 
Oct. 21, 2021, 11 a.m. N/A 0.3 ppb (1) 2.8 ppb (3) N/A N/A 0.0 ppb (0) 9.0 ppb (9) 0.36 ppb (5) 8.0 μg/m3 (8) -2.0 μg/m3 (0) 9.0
 
Oct. 21, 2021, 10 a.m. N/A 0.3 ppb (1) 3.2 ppb (4) N/A N/A 0.0 ppb (0) 11.0 ppb (11) 0.3 ppb (4) 14.0 μg/m3 (13) 0.0 μg/m3 (0) 13.0
 
Oct. 21, 2021, 9 a.m. N/A 0.2 ppb (1) 1.2 ppb (2) N/A N/A N/A 18.0 ppb (17) N/A 19.0 μg/m3 (18) 2.0 μg/m3 (9) 18.0
 
Oct. 21, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (21) 0.35 ppb (4) 16.0 μg/m3 (15) 0.0 μg/m3 (0) 21.0
 
Oct. 21, 2021, 7 a.m. N/A 0.2 ppb (1) 1.8 ppb (2) N/A N/A 1.0 ppb (2) 24.0 ppb (23) 0.35 ppb (4) 15.0 μg/m3 (14) 4.0 μg/m3 (17) 23.0
 
Oct. 21, 2021, 6 a.m. N/A 0.2 ppb (1) 3.2 ppb (4) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.35 ppb (4) 22.0 μg/m3 (21) 7.0 μg/m3 (30) 30.0
 
Oct. 21, 2021, 5 a.m. N/A 0.2 ppb (1) 3.5 ppb (4) N/A N/A -1.0 ppb (0) 21.0 ppb (20) 0.37 ppb (5) 16.0 μg/m3 (15) 5.0 μg/m3 (21) 21.0
 
Oct. 21, 2021, 4 a.m. N/A 0.2 ppb (1) 2.5 ppb (3) N/A N/A -1.0 ppb (0) 11.0 ppb (11) 0.37 ppb (5) 6.0 μg/m3 (6) 3.0 μg/m3 (13) 13.0
 
Oct. 21, 2021, 3 a.m. N/A 0.2 ppb (1) 1.9 ppb (2) N/A N/A -1.0 ppb (0) 17.0 ppb (16) 0.36 ppb (5) 10.0 μg/m3 (10) 4.0 μg/m3 (17) 17.0
 
Oct. 21, 2021, 2 a.m. N/A 0.2 ppb (1) 1.8 ppb (2) N/A N/A -1.0 ppb (0) 21.0 ppb (20) 0.35 ppb (4) 8.0 μg/m3 (8) 2.0 μg/m3 (9) 20.0
 
Oct. 21, 2021, 1 a.m. N/A 0.2 ppb (1) 1.9 ppb (2) N/A N/A -1.0 ppb (0) 29.0 ppb (27) 0.34 ppb (4) 16.0 μg/m3 (15) 4.0 μg/m3 (17) 27.0
 
Oct. 21, 2021, midnight N/A 0.2 ppb (1) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.33 ppb (4) 18.0 μg/m3 (17) 3.0 μg/m3 (13) 33.0
 
Oct. 20, 2021, 11 p.m. N/A 0.2 ppb (1) 1.4 ppb (2) N/A N/A -1.0 ppb (0) 38.0 ppb (36) 0.32 ppb (4) 21.0 μg/m3 (20) 7.0 μg/m3 (30) 36.0
 
Oct. 20, 2021, 10 p.m. N/A 0.2 ppb (1) 1.9 ppb (2) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.35 ppb (4) 21.0 μg/m3 (20) 13.0 μg/m3 (53) 53.0
 
Oct. 20, 2021, 9 p.m. N/A 0.2 ppb (1) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 41.0 ppb (38) 0.31 ppb (4) 11.0 μg/m3 (11) 5.0 μg/m3 (21) 38.0
 
Oct. 20, 2021, 8 p.m. N/A 0.2 ppb (1) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.3 ppb (4) 15.0 μg/m3 (14) 8.0 μg/m3 (34) 39.0
 
Oct. 20, 2021, 7 p.m. N/A 0.1 ppb (1) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 45.0 ppb (42) 0.28 ppb (4) 12.0 μg/m3 (12) 8.0 μg/m3 (34) 42.0
 
Oct. 20, 2021, 6 p.m. N/A 0.2 ppb (1) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 47.0 ppb (44) 0.26 ppb (4) 12.0 μg/m3 (12) 10.0 μg/m3 (42) 44.0
 
Oct. 20, 2021, 5 p.m. N/A 0.2 ppb (1) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 47.0 ppb (44) 0.3 ppb (4) 17.0 μg/m3 (16) 4.0 μg/m3 (17) 44.0
 
Oct. 20, 2021, 4 p.m. N/A 0.2 ppb (1) 1.6 ppb (2) N/A N/A 0.0 ppb (0) 47.0 ppb (44) 0.29 ppb (4) 17.0 μg/m3 (16) 6.0 μg/m3 (25) 44.0
 
Oct. 20, 2021, 3 p.m. N/A 0.2 ppb (1) 1.6 ppb (2) N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.35 ppb (4) 16.0 μg/m3 (15) 16.0 μg/m3 (60) 60.0
 
Oct. 20, 2021, 2 p.m. N/A 0.2 ppb (1) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.37 ppb (5) 14.0 μg/m3 (13) 8.0 μg/m3 (34) 37.0
 
Oct. 20, 2021, 1 p.m. N/A 0.3 ppb (1) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.4 ppb (5) 14.0 μg/m3 (13) 7.0 μg/m3 (30) 35.0
 
Oct. 20, 2021, noon N/A 0.3 ppb (1) 1.4 ppb (2) N/A N/A -1.0 ppb (0) 37.0 ppb (35) 0.4 ppb (5) 14.0 μg/m3 (13) 12.0 μg/m3 (50) 50.0
 
Oct. 20, 2021, 11 a.m. N/A 0.3 ppb (1) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.41 ppb (5) 16.0 μg/m3 (15) 10.0 μg/m3 (42) 42.0
 
Oct. 20, 2021, 10 a.m. N/A 0.3 ppb (1) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.36 ppb (5) 15.0 μg/m3 (14) 10.0 μg/m3 (42) 42.0
 
Oct. 20, 2021, 9 a.m. N/A 0.5 ppb (1) 1.2 ppb (2) N/A N/A N/A 40.0 ppb (38) N/A 13.0 μg/m3 (13) 11.0 μg/m3 (46) 46.0
 
Oct. 20, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.41 ppb (5) 14.0 μg/m3 (13) 9.0 μg/m3 (38) 38.0
 
Oct. 20, 2021, 7 a.m. N/A 0.2 ppb (1) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.38 ppb (5) 12.0 μg/m3 (12) 14.0 μg/m3 (55) 55.0
 
Oct. 20, 2021, 6 a.m. N/A 0.2 ppb (1) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.38 ppb (5) 17.0 μg/m3 (16) 8.0 μg/m3 (34) 38.0
 
Oct. 20, 2021, 5 a.m. N/A 0.1 ppb (1) 1.3 ppb (2) N/A N/A 1.0 ppb (2) 40.0 ppb (38) 0.38 ppb (5) 12.0 μg/m3 (12) 6.0 μg/m3 (25) 38.0
 
Oct. 20, 2021, 4 a.m. N/A 0.2 ppb (1) 1.3 ppb (2) N/A N/A 1.0 ppb (2) 42.0 ppb (39) 0.36 ppb (5) 14.0 μg/m3 (13) 7.0 μg/m3 (30) 39.0
 
Oct. 20, 2021, 3 a.m. N/A 0.1 ppb (1) 1.3 ppb (2) N/A N/A 1.0 ppb (2) 42.0 ppb (39) 0.37 ppb (5) 17.0 μg/m3 (16) 8.0 μg/m3 (34) 39.0
 
Oct. 20, 2021, 2 a.m. N/A 0.2 ppb (1) 1.3 ppb (2) N/A N/A 1.0 ppb (2) 42.0 ppb (39) 0.37 ppb (5) 14.0 μg/m3 (13) 5.0 μg/m3 (21) 39.0
 
Oct. 20, 2021, 1 a.m. N/A 0.2 ppb (1) 1.3 ppb (2) N/A N/A 1.0 ppb (2) 42.0 ppb (39) 0.38 ppb (5) 15.0 μg/m3 (14) 3.0 μg/m3 (13) 39.0
 
Oct. 20, 2021, midnight N/A 0.2 ppb (1) 1.4 ppb (2) N/A N/A 1.0 ppb (2) 42.0 ppb (39) 0.35 ppb (4) 15.0 μg/m3 (14) 4.0 μg/m3 (17) 39.0
 
Oct. 19, 2021, 11 p.m. N/A 0.2 ppb (1) 1.5 ppb (2) N/A N/A 1.0 ppb (2) 46.0 ppb (43) 0.33 ppb (4) 11.0 μg/m3 (11) 5.0 μg/m3 (21) 43.0
 
Oct. 19, 2021, 10 p.m. N/A 0.2 ppb (1) 1.5 ppb (2) N/A N/A 1.0 ppb (2) 51.0 ppb (48) 0.3 ppb (4) 16.0 μg/m3 (15) 4.0 μg/m3 (17) 48.0
 
Oct. 19, 2021, 9 p.m. N/A 0.2 ppb (1) 1.5 ppb (2) N/A N/A 1.0 ppb (2) 52.0 ppb (49) 0.3 ppb (4) 16.0 μg/m3 (15) 3.0 μg/m3 (13) 49.0
 
Oct. 19, 2021, 8 p.m. N/A 0.3 ppb (1) 1.5 ppb (2) N/A N/A 1.0 ppb (2) 52.0 ppb (49) 0.29 ppb (4) 12.0 μg/m3 (12) 4.0 μg/m3 (17) 49.0
 
Oct. 19, 2021, 7 p.m. N/A 0.3 ppb (1) 1.5 ppb (2) N/A N/A 1.0 ppb (2) 49.0 ppb (46) 0.31 ppb (4) 13.0 μg/m3 (13) 5.0 μg/m3 (21) 46.0
 
Oct. 19, 2021, 6 p.m. N/A 0.3 ppb (1) 1.4 ppb (2) N/A N/A 1.0 ppb (2) 47.0 ppb (44) 0.3 ppb (4) 13.0 μg/m3 (13) 2.0 μg/m3 (9) 44.0
 
Oct. 19, 2021, 5 p.m. N/A 0.3 ppb (1) 1.3 ppb (2) N/A N/A 1.0 ppb (2) 43.0 ppb (40) 0.33 ppb (4) 10.0 μg/m3 (10) 3.0 μg/m3 (13) 40.0
 
Oct. 19, 2021, 4 p.m. N/A 0.2 ppb (1) 1.1 ppb (2) N/A N/A 1.0 ppb (2) 40.0 ppb (38) 0.32 ppb (4) 10.0 μg/m3 (10) 3.0 μg/m3 (13) 38.0
 
Oct. 19, 2021, 3 p.m. N/A 0.2 ppb (1) 1.1 ppb (2) N/A N/A 1.0 ppb (2) N/A 0.34 ppb (4) 9.0 μg/m3 (9) 2.0 μg/m3 (9) 9.0
 
Oct. 19, 2021, 2 p.m. N/A 0.2 ppb (1) 1.0 ppb (1) N/A N/A 1.0 ppb (2) 34.0 ppb (32) 0.36 ppb (5) 10.0 μg/m3 (10) 2.0 μg/m3 (9) 32.0
 
Oct. 19, 2021, 1 p.m. N/A 0.1 ppb (1) 0.9 ppb (1) N/A N/A 1.0 ppb (2) 33.0 ppb (31) 0.37 ppb (5) 12.0 μg/m3 (12) 4.0 μg/m3 (17) 31.0
 
Oct. 19, 2021, noon N/A 0.1 ppb (1) 0.8 ppb (1) N/A N/A 1.0 ppb (2) 33.0 ppb (31) 0.37 ppb (5) 9.0 μg/m3 (9) 4.0 μg/m3 (17) 31.0
 
Oct. 19, 2021, 11 a.m. N/A 0.1 ppb (1) 0.8 ppb (1) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.37 ppb (5) 9.0 μg/m3 (9) 4.0 μg/m3 (17) 31.0
 
Oct. 19, 2021, 10 a.m. N/A 0.1 ppb (1) 0.8 ppb (1) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.31 ppb (4) 10.0 μg/m3 (10) 4.0 μg/m3 (17) 32.0
 
Oct. 19, 2021, 9 a.m. N/A 0.2 ppb (1) 0.9 ppb (1) N/A N/A N/A 34.0 ppb (32) N/A 9.0 μg/m3 (9) 1.0 μg/m3 (5) 32.0
 
Oct. 19, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.37 ppb (5) 10.0 μg/m3 (10) 4.0 μg/m3 (17) 32.0
 
Oct. 19, 2021, 7 a.m. N/A 0.1 ppb (1) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.38 ppb (5) 12.0 μg/m3 (12) 7.0 μg/m3 (30) 32.0
 
Oct. 19, 2021, 6 a.m. N/A 0.1 ppb (1) 1.9 ppb (2) N/A N/A 1.0 ppb (2) 35.0 ppb (33) 0.38 ppb (5) 14.0 μg/m3 (13) 8.0 μg/m3 (34) 34.0
 
Oct. 19, 2021, 5 a.m. N/A 0.1 ppb (1) 2.1 ppb (2) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.39 ppb (5) 11.0 μg/m3 (11) 6.0 μg/m3 (25) 31.0
 
Oct. 19, 2021, 4 a.m. N/A 0.1 ppb (1) 2.1 ppb (2) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.39 ppb (5) 8.0 μg/m3 (8) 4.0 μg/m3 (17) 29.0
 
Oct. 19, 2021, 3 a.m. N/A 0.2 ppb (1) 1.9 ppb (2) N/A N/A 1.0 ppb (2) 32.0 ppb (30) 0.38 ppb (5) 13.0 μg/m3 (13) 2.0 μg/m3 (9) 30.0
 
Oct. 19, 2021, 2 a.m. N/A 0.1 ppb (1) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.39 ppb (5) 15.0 μg/m3 (14) 0.0 μg/m3 (0) 32.0
 
Oct. 19, 2021, 1 a.m. N/A 0.1 ppb (1) 1.3 ppb (2) N/A N/A 1.0 ppb (2) 38.0 ppb (36) 0.37 ppb (5) 9.0 μg/m3 (9) 1.0 μg/m3 (5) 36.0
 
Oct. 19, 2021, midnight N/A 0.2 ppb (1) 1.3 ppb (2) N/A N/A 1.0 ppb (2) 40.0 ppb (38) 0.34 ppb (4) 10.0 μg/m3 (10) 3.0 μg/m3 (13) 38.0
 
Oct. 18, 2021, 11 p.m. N/A 0.2 ppb (1) 1.3 ppb (2) N/A N/A 1.0 ppb (2) 44.0 ppb (41) 0.31 ppb (4) 7.0 μg/m3 (7) 2.0 μg/m3 (9) 41.0
 
Oct. 18, 2021, 10 p.m. N/A 0.2 ppb (1) 1.3 ppb (2) N/A N/A 1.0 ppb (2) 47.0 ppb (44) 0.3 ppb (4) 9.0 μg/m3 (9) 2.0 μg/m3 (9) 44.0
 
Oct. 18, 2021, 9 p.m. N/A 0.2 ppb (1) 1.2 ppb (2) N/A N/A 1.0 ppb (2) 50.0 ppb (47) 0.3 ppb (4) 11.0 μg/m3 (11) 1.0 μg/m3 (5) 47.0
 
Oct. 18, 2021, 8 p.m. N/A 0.2 ppb (1) 1.1 ppb (2) N/A N/A 1.0 ppb (2) 49.0 ppb (46) 0.27 ppb (4) 9.0 μg/m3 (9) 2.0 μg/m3 (9) 46.0
 
Oct. 18, 2021, 7 p.m. N/A 0.2 ppb (1) 1.0 ppb (1) N/A N/A 1.0 ppb (2) 48.0 ppb (45) 0.26 ppb (4) 10.0 μg/m3 (10) 0.0 μg/m3 (0) 45.0
 
Oct. 18, 2021, 6 p.m. N/A 0.2 ppb (1) 1.0 ppb (1) N/A N/A 1.0 ppb (2) 47.0 ppb (44) 0.26 ppb (4) 11.0 μg/m3 (11) 1.0 μg/m3 (5) 44.0
 
Oct. 18, 2021, 5 p.m. N/A 0.2 ppb (1) 1.0 ppb (1) N/A N/A 1.0 ppb (2) 45.0 ppb (42) 0.3 ppb (4) 11.0 μg/m3 (11) 4.0 μg/m3 (17) 42.0
 
Oct. 18, 2021, 4 p.m. N/A 0.3 ppb (1) 1.1 ppb (2) N/A N/A 1.0 ppb (2) 41.0 ppb (38) 0.31 ppb (4) 8.0 μg/m3 (8) 3.0 μg/m3 (13) 38.0
 
Oct. 18, 2021, 3 p.m. N/A 0.3 ppb (1) 1.2 ppb (2) N/A N/A 1.0 ppb (2) 37.0 ppb (35) 0.32 ppb (4) 8.0 μg/m3 (8) 0.0 μg/m3 (0) 35.0
 
Oct. 18, 2021, 2 p.m. N/A 0.3 ppb (1) 1.4 ppb (2) N/A N/A 1.0 ppb (2) 33.0 ppb (31) 0.35 ppb (4) 5.0 μg/m3 (5) 1.0 μg/m3 (5) 31.0
 
Oct. 18, 2021, 1 p.m. N/A 0.2 ppb (1) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.37 ppb (5) 4.0 μg/m3 (4) 3.0 μg/m3 (13) 25.0
 
Oct. 18, 2021, noon N/A 0.2 ppb (1) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 19.0 ppb (18) 0.36 ppb (5) 4.0 μg/m3 (4) 1.0 μg/m3 (5) 18.0
 
Oct. 18, 2021, 11 a.m. N/A 0.1 ppb (1) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 22.0 ppb (21) 0.36 ppb (5) 6.0 μg/m3 (6) 2.0 μg/m3 (9) 21.0
 
Oct. 18, 2021, 10 a.m. N/A 0.1 ppb (1) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 19.0 ppb (18) 0.31 ppb (4) 4.0 μg/m3 (4) 2.0 μg/m3 (9) 18.0
 
Oct. 18, 2021, 9 a.m. N/A 0.1 ppb (1) 1.9 ppb (2) N/A N/A N/A 16.0 ppb (15) N/A 4.0 μg/m3 (4) 0.0 μg/m3 (0) 15.0
 
Oct. 18, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 14.0 ppb (13) 0.34 ppb (4) 5.0 μg/m3 (5) -3.0 μg/m3 (0) 13.0
 
Oct. 18, 2021, 7 a.m. N/A 0.2 ppb (1) 3.8 ppb (4) N/A N/A 0.0 ppb (0) 12.0 ppb (12) 0.36 ppb (5) 6.0 μg/m3 (6) 1.0 μg/m3 (5) 12.0
 
Oct. 18, 2021, 6 a.m. N/A 0.2 ppb (1) 5.6 ppb (6) N/A N/A 0.0 ppb (0) 11.0 ppb (11) 0.36 ppb (5) 7.0 μg/m3 (7) 3.0 μg/m3 (13) 13.0
 
Oct. 18, 2021, 5 a.m. N/A 0.2 ppb (1) 4.3 ppb (5) N/A N/A 0.0 ppb (0) 10.0 ppb (10) 0.38 ppb (5) 3.0 μg/m3 (3) 5.0 μg/m3 (21) 21.0
 
Oct. 18, 2021, 4 a.m. N/A 0.1 ppb (1) 2.5 ppb (3) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.36 ppb (5) 8.0 μg/m3 (8) 5.0 μg/m3 (21) 21.0
 
Oct. 18, 2021, 3 a.m. N/A 0.2 ppb (1) 2.6 ppb (3) N/A N/A 0.0 ppb (0) 22.0 ppb (21) 0.39 ppb (5) 14.0 μg/m3 (13) 3.0 μg/m3 (13) 21.0
 
Oct. 18, 2021, 2 a.m. N/A 0.2 ppb (1) 3.0 ppb (3) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.4 ppb (5) 15.0 μg/m3 (14) 3.0 μg/m3 (13) 26.0
 
Oct. 18, 2021, 1 a.m. N/A 0.1 ppb (1) 2.1 ppb (2) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.4 ppb (5) 8.0 μg/m3 (8) 6.0 μg/m3 (25) 25.0
 
Oct. 18, 2021, midnight N/A 0.1 ppb (1) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.36 ppb (5) 7.0 μg/m3 (7) 2.0 μg/m3 (9) 34.0
 
Oct. 17, 2021, 11 p.m. N/A 0.1 ppb (1) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.29 ppb (4) 6.0 μg/m3 (6) -2.0 μg/m3 (0) 41.0
 
Oct. 17, 2021, 10 p.m. N/A 0.2 ppb (1) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 50.0 ppb (47) 0.25 ppb (3) 8.0 μg/m3 (8) 0.0 μg/m3 (0) 47.0
 
Oct. 17, 2021, 9 p.m. N/A 0.2 ppb (1) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 50.0 ppb (47) 0.23 ppb (3) 8.0 μg/m3 (8) 3.0 μg/m3 (13) 47.0
 
Oct. 17, 2021, 8 p.m. N/A 0.2 ppb (1) 1.1 ppb (2) N/A N/A 0.0 ppb (0) 50.0 ppb (47) 0.21 ppb (3) 5.0 μg/m3 (5) 2.0 μg/m3 (9) 47.0
 
Oct. 17, 2021, 7 p.m. N/A 0.3 ppb (1) 1.1 ppb (2) N/A N/A 1.0 ppb (2) 49.0 ppb (46) 0.22 ppb (3) 6.0 μg/m3 (6) -2.0 μg/m3 (0) 46.0
 
Oct. 17, 2021, 6 p.m. N/A 0.3 ppb (1) 1.1 ppb (2) N/A N/A 1.0 ppb (2) 46.0 ppb (43) 0.23 ppb (3) 7.0 μg/m3 (7) -4.0 μg/m3 (0) 43.0
 
Oct. 17, 2021, 5 p.m. N/A 0.4 ppb (1) 1.2 ppb (2) N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.27 ppb (4) 10.0 μg/m3 (10) -3.0 μg/m3 (0) 41.0
 
Oct. 17, 2021, 4 p.m. N/A 0.5 ppb (1) 1.3 ppb (2) N/A N/A 1.0 ppb (2) 39.0 ppb (37) 0.27 ppb (4) 7.0 μg/m3 (7) -2.0 μg/m3 (0) 37.0
 
Oct. 17, 2021, 3 p.m. N/A 0.5 ppb (1) 1.2 ppb (2) N/A N/A 1.0 ppb (2) 28.0 ppb (26) 0.32 ppb (4) 5.0 μg/m3 (5) 1.0 μg/m3 (5) 26.0
 
Oct. 17, 2021, 2 p.m. N/A 0.4 ppb (1) 1.1 ppb (2) N/A N/A 1.0 ppb (2) 15.0 ppb (14) 0.35 ppb (4) 5.0 μg/m3 (5) 2.0 μg/m3 (9) 14.0
 
Oct. 17, 2021, 1 p.m. N/A 0.3 ppb (1) 1.1 ppb (2) N/A N/A 0.0 ppb (0) 6.0 ppb (6) 0.41 ppb (5) 4.0 μg/m3 (4) 2.0 μg/m3 (9) 9.0
 
Oct. 17, 2021, noon N/A 0.2 ppb (1) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 5.0 ppb (5) 0.35 ppb (4) 3.0 μg/m3 (3) 3.0 μg/m3 (13) 13.0
 
Oct. 17, 2021, 11 a.m. N/A 0.2 ppb (1) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 5.0 ppb (5) 0.35 ppb (4) 3.0 μg/m3 (3) 1.0 μg/m3 (5) 5.0
 
Oct. 17, 2021, 10 a.m. N/A 0.2 ppb (1) 0.9 ppb (1) N/A N/A 1.0 ppb (2) 5.0 ppb (5) 0.3 ppb (4) 4.0 μg/m3 (4) -2.0 μg/m3 (0) 5.0
 
Oct. 17, 2021, 9 a.m. N/A 0.3 ppb (1) 0.8 ppb (1) N/A N/A N/A 5.0 ppb (5) N/A 2.0 μg/m3 (2) -1.0 μg/m3 (0) 5.0