ID: 1057

AQSQID: 400019009

Site Name: Stilwell Castnet & Ncore

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

Updated: May 14, 2021, 10:47 p.m.

Location: Stilwell (D0869 Rd), OK

Reporting: True, Located: True

Current AQI: 46.0

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
May 14, 2021, 9 p.m. N/A 0.2 ppb (1) 0.6 ppb (1) N/A N/A 1.0 ppb (2) 49.0 ppb (46) 0.38 ppb (5) 14.0 μg/m3 (13) 2.0 μg/m3 (9) 46.0
 
May 14, 2021, 8 p.m. N/A 0.2 ppb (1) 0.6 ppb (1) N/A N/A 1.0 ppb (2) 49.0 ppb (46) 0.39 ppb (5) 13.0 μg/m3 (13) 3.0 μg/m3 (13) 46.0
 
May 14, 2021, 7 p.m. N/A 0.2 ppb (1) 0.7 ppb (1) N/A N/A 1.0 ppb (2) 48.0 ppb (45) 0.38 ppb (5) 13.0 μg/m3 (13) 6.0 μg/m3 (25) 45.0
 
May 14, 2021, 6 p.m. N/A 0.2 ppb (1) 0.6 ppb (1) N/A N/A 1.0 ppb (2) 49.0 ppb (46) 0.47 ppb (6) 22.0 μg/m3 (21) 6.0 μg/m3 (25) 46.0
 
May 14, 2021, 5 p.m. N/A 0.2 ppb (1) 0.5 ppb (1) N/A N/A 1.0 ppb (2) 50.0 ppb (47) 0.38 ppb (5) 14.0 μg/m3 (13) 5.0 μg/m3 (21) 47.0
 
May 14, 2021, 4 p.m. N/A 0.2 ppb (1) 0.3 ppb (1) N/A N/A 1.0 ppb (2) 48.0 ppb (45) 0.38 ppb (5) 12.0 μg/m3 (12) 2.0 μg/m3 (9) 45.0
 
May 14, 2021, 3 p.m. N/A 0.2 ppb (1) 0.3 ppb (1) N/A N/A 1.0 ppb (2) 46.0 ppb (43) 0.4 ppb (5) 11.0 μg/m3 (11) 1.0 μg/m3 (5) 43.0
 
May 14, 2021, 2 p.m. N/A 0.3 ppb (1) 0.2 ppb (1) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.43 ppb (5) 10.0 μg/m3 (10) 1.0 μg/m3 (5) 39.0
 
May 14, 2021, 1 p.m. N/A 0.2 ppb (1) 0.1 ppb (1) N/A N/A 0.0 ppb (0) 41.0 ppb (38) 0.43 ppb (5) 12.0 μg/m3 (12) 3.0 μg/m3 (13) 38.0
 
May 14, 2021, noon N/A 0.2 ppb (1) 0.0 ppb (0) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.44 ppb (5) 16.0 μg/m3 (15) 3.0 μg/m3 (13) 34.0
 
May 14, 2021, 11 a.m. N/A 0.2 ppb (1) 0.0 ppb (0) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.46 ppb (6) 8.0 μg/m3 (8) 1.0 μg/m3 (5) 32.0
 
May 14, 2021, 10 a.m. N/A 0.2 ppb (1) -0.1 ppb (0) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.41 ppb (5) 9.0 μg/m3 (9) 1.0 μg/m3 (5) 32.0
 
May 14, 2021, 9 a.m. N/A 0.2 ppb (1) -0.1 ppb (0) N/A N/A N/A 33.0 ppb (31) N/A 8.0 μg/m3 (8) 1.0 μg/m3 (5) 31.0
 
May 14, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.47 ppb (6) 9.0 μg/m3 (9) 1.0 μg/m3 (5) 29.0
 
May 14, 2021, 7 a.m. N/A 0.1 ppb (1) 0.5 ppb (1) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.48 ppb (6) 9.0 μg/m3 (9) 7.0 μg/m3 (30) 30.0
 
May 14, 2021, 6 a.m. N/A 0.2 ppb (1) 0.8 ppb (1) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.48 ppb (6) 11.0 μg/m3 (11) 14.0 μg/m3 (55) 55.0
 
May 14, 2021, 5 a.m. N/A 0.2 ppb (1) 1.0 ppb (1) N/A N/A 1.0 ppb (2) 30.0 ppb (28) 0.48 ppb (6) 9.0 μg/m3 (9) 6.0 μg/m3 (25) 28.0
 
May 14, 2021, 4 a.m. N/A 0.2 ppb (1) 1.2 ppb (2) N/A N/A 1.0 ppb (2) 19.0 ppb (18) 0.49 ppb (6) 10.0 μg/m3 (10) 8.0 μg/m3 (34) 34.0
 
May 14, 2021, 3 a.m. N/A 0.2 ppb (1) 1.1 ppb (2) N/A N/A 1.0 ppb (2) 27.0 ppb (25) 0.48 ppb (6) 14.0 μg/m3 (13) 7.0 μg/m3 (30) 30.0
 
May 14, 2021, 2 a.m. N/A 0.2 ppb (1) 0.8 ppb (1) N/A N/A 1.0 ppb (2) 29.0 ppb (27) 0.48 ppb (6) 10.0 μg/m3 (10) 9.0 μg/m3 (38) 38.0
 
May 14, 2021, 1 a.m. N/A 0.2 ppb (1) 0.3 ppb (1) N/A N/A 1.0 ppb (2) 35.0 ppb (33) 0.45 ppb (6) 9.0 μg/m3 (9) 5.0 μg/m3 (21) 33.0
 
May 14, 2021, midnight N/A 0.2 ppb (1) 0.2 ppb (1) N/A N/A 1.0 ppb (2) 41.0 ppb (38) 0.42 ppb (5) 10.0 μg/m3 (10) 4.0 μg/m3 (17) 38.0
 
May 13, 2021, 11 p.m. N/A 0.2 ppb (1) 0.2 ppb (1) N/A N/A 1.0 ppb (2) 46.0 ppb (43) 0.39 ppb (5) 9.0 μg/m3 (9) 4.0 μg/m3 (17) 43.0
 
May 13, 2021, 10 p.m. N/A 0.2 ppb (1) 0.1 ppb (1) N/A N/A 1.0 ppb (2) 47.0 ppb (44) 0.38 ppb (5) 8.0 μg/m3 (8) 3.0 μg/m3 (13) 44.0
 
May 13, 2021, 9 p.m. N/A 0.2 ppb (1) 0.1 ppb (1) N/A N/A 1.0 ppb (2) 46.0 ppb (43) 0.36 ppb (5) 8.0 μg/m3 (8) -1.0 μg/m3 (0) 43.0
 
May 13, 2021, 8 p.m. N/A 0.2 ppb (1) 0.2 ppb (1) N/A N/A 1.0 ppb (2) 46.0 ppb (43) 0.36 ppb (5) 8.0 μg/m3 (8) -1.0 μg/m3 (0) 43.0
 
May 13, 2021, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 46.0 ppb (43) 0.37 ppb (5) 8.0 μg/m3 (8) 2.0 μg/m3 (9) 43.0
 
May 13, 2021, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 45.0 ppb (42) 0.39 ppb (5) 5.0 μg/m3 (5) 4.0 μg/m3 (17) 42.0
 
May 13, 2021, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 44.0 ppb (41) 0.4 ppb (5) 16.0 μg/m3 (15) 3.0 μg/m3 (13) 41.0
 
May 13, 2021, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 41.0 ppb (38) 0.4 ppb (5) 15.0 μg/m3 (14) 2.0 μg/m3 (9) 38.0
 
May 13, 2021, 3 p.m. N/A 0.3 ppb (1) -0.3 ppb (0) N/A N/A 1.0 ppb (2) 37.0 ppb (35) 0.41 ppb (5) 12.0 μg/m3 (12) 3.0 μg/m3 (13) 35.0
 
May 13, 2021, 2 p.m. N/A 0.3 ppb (1) -0.3 ppb (0) N/A N/A 1.0 ppb (2) 34.0 ppb (32) 0.43 ppb (5) 10.0 μg/m3 (10) 3.0 μg/m3 (13) 32.0
 
May 13, 2021, 1 p.m. N/A 0.2 ppb (1) -0.4 ppb (0) N/A N/A 1.0 ppb (2) 35.0 ppb (33) 0.43 ppb (5) 14.0 μg/m3 (13) 4.0 μg/m3 (17) 33.0
 
May 13, 2021, noon N/A 0.2 ppb (1) -0.4 ppb (0) N/A N/A 1.0 ppb (2) 36.0 ppb (34) 0.44 ppb (5) 13.0 μg/m3 (13) 4.0 μg/m3 (17) 34.0
 
May 13, 2021, 11 a.m. N/A 0.2 ppb (1) -0.4 ppb (0) N/A N/A 1.0 ppb (2) 36.0 ppb (34) 0.44 ppb (5) 15.0 μg/m3 (14) 0.0 μg/m3 (0) 34.0
 
May 13, 2021, 10 a.m. N/A 0.3 ppb (1) -0.3 ppb (0) N/A N/A 1.0 ppb (2) 34.0 ppb (32) 0.4 ppb (5) 13.0 μg/m3 (13) 2.0 μg/m3 (9) 32.0
 
May 13, 2021, 9 a.m. N/A 0.3 ppb (1) -0.3 ppb (0) N/A N/A N/A 28.0 ppb (26) N/A 7.0 μg/m3 (7) 4.0 μg/m3 (17) 26.0
 
May 13, 2021, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 28.0 ppb (26) 0.46 ppb (6) 10.0 μg/m3 (10) 5.0 μg/m3 (21) 26.0
 
May 13, 2021, 7 a.m. N/A 0.1 ppb (1) 0.1 ppb (1) N/A N/A 1.0 ppb (2) 31.0 ppb (29) 0.45 ppb (6) 12.0 μg/m3 (12) 3.0 μg/m3 (13) 29.0
 
May 13, 2021, 6 a.m. N/A 0.1 ppb (1) 0.2 ppb (1) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.44 ppb (5) 12.0 μg/m3 (12) 5.0 μg/m3 (21) 31.0
 
May 13, 2021, 5 a.m. N/A 0.1 ppb (1) 0.3 ppb (1) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.44 ppb (5) 16.0 μg/m3 (15) 1.0 μg/m3 (5) 32.0
 
May 13, 2021, 4 a.m. N/A 0.1 ppb (1) 0.4 ppb (1) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.44 ppb (5) 15.0 μg/m3 (14) 2.0 μg/m3 (9) 33.0
 
May 13, 2021, 3 a.m. N/A 0.1 ppb (1) 0.3 ppb (1) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.45 ppb (6) 11.0 μg/m3 (11) 3.0 μg/m3 (13) 27.0
 
May 13, 2021, 2 a.m. N/A 0.1 ppb (1) 0.2 ppb (1) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.45 ppb (6) 9.0 μg/m3 (9) 4.0 μg/m3 (17) 28.0
 
May 13, 2021, 1 a.m. N/A 0.1 ppb (1) 0.1 ppb (1) N/A N/A 0.0 ppb (0) 41.0 ppb (38) 0.42 ppb (5) 15.0 μg/m3 (14) 5.0 μg/m3 (21) 38.0
 
May 13, 2021, midnight N/A 0.1 ppb (1) -0.1 ppb (0) N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.41 ppb (5) 12.0 μg/m3 (12) 3.0 μg/m3 (13) 40.0
 
May 12, 2021, 11 p.m. N/A 0.2 ppb (1) -0.1 ppb (0) N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.4 ppb (5) 8.0 μg/m3 (8) 3.0 μg/m3 (13) 40.0
 
May 12, 2021, 10 p.m. N/A 0.1 ppb (1) -0.3 ppb (0) N/A N/A 0.0 ppb (0) 45.0 ppb (42) 0.39 ppb (5) 8.0 μg/m3 (8) 4.0 μg/m3 (17) 42.0
 
May 12, 2021, 9 p.m. N/A 0.1 ppb (1) -0.3 ppb (0) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.4 ppb (5) 8.0 μg/m3 (8) 5.0 μg/m3 (21) 39.0
 
May 12, 2021, 8 p.m. N/A 0.1 ppb (1) -0.3 ppb (0) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.38 ppb (5) 6.0 μg/m3 (6) 6.0 μg/m3 (25) 39.0
 
May 12, 2021, 7 p.m. N/A 0.2 ppb (1) -0.4 ppb (0) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.38 ppb (5) 7.0 μg/m3 (7) 4.0 μg/m3 (17) 38.0
 
May 12, 2021, 6 p.m. N/A 0.2 ppb (1) -0.4 ppb (0) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.39 ppb (5) 11.0 μg/m3 (11) 2.0 μg/m3 (9) 37.0
 
May 12, 2021, 5 p.m. N/A 0.2 ppb (1) -0.4 ppb (0) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.4 ppb (5) 10.0 μg/m3 (10) 0.0 μg/m3 (0) 34.0
 
May 12, 2021, 4 p.m. N/A 0.2 ppb (1) -0.4 ppb (0) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.42 ppb (5) 9.0 μg/m3 (9) 2.0 μg/m3 (9) 31.0
 
May 12, 2021, 3 p.m. N/A 0.2 ppb (1) -0.4 ppb (0) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.43 ppb (5) 12.0 μg/m3 (12) 6.0 μg/m3 (25) 29.0
 
May 12, 2021, 2 p.m. N/A 0.2 ppb (1) -0.5 ppb (0) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.45 ppb (6) 12.0 μg/m3 (12) 5.0 μg/m3 (21) 27.0
 
May 12, 2021, 1 p.m. N/A 0.2 ppb (1) -0.6 ppb (0) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.45 ppb (6) 10.0 μg/m3 (10) 3.0 μg/m3 (13) 27.0
 
May 12, 2021, noon N/A 0.2 ppb (1) -0.6 ppb (0) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.45 ppb (6) 10.0 μg/m3 (10) 6.0 μg/m3 (25) 27.0
 
May 12, 2021, 11 a.m. N/A 0.2 ppb (1) -0.7 ppb (0) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.45 ppb (6) 10.0 μg/m3 (10) 6.0 μg/m3 (25) 27.0
 
May 12, 2021, 10 a.m. N/A 0.2 ppb (1) -0.7 ppb (0) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.41 ppb (5) 10.0 μg/m3 (10) 8.0 μg/m3 (34) 34.0
 
May 12, 2021, 9 a.m. N/A 0.2 ppb (1) -0.9 ppb (0) N/A N/A N/A 33.0 ppb (31) N/A 11.0 μg/m3 (11) 3.0 μg/m3 (13) 31.0
 
May 12, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.46 ppb (6) 8.0 μg/m3 (8) 8.0 μg/m3 (34) 34.0
 
May 12, 2021, 7 a.m. N/A 0.1 ppb (1) 0.0 ppb (0) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.47 ppb (6) 8.0 μg/m3 (8) 9.0 μg/m3 (38) 38.0
 
May 12, 2021, 6 a.m. N/A 0.1 ppb (1) -0.1 ppb (0) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.48 ppb (6) 15.0 μg/m3 (14) 11.0 μg/m3 (46) 46.0
 
May 12, 2021, 5 a.m. N/A 0.1 ppb (1) -0.6 ppb (0) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.47 ppb (6) 7.0 μg/m3 (7) 5.0 μg/m3 (21) 29.0
 
May 12, 2021, 4 a.m. N/A 0.2 ppb (1) -0.7 ppb (0) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.46 ppb (6) 10.0 μg/m3 (10) 6.0 μg/m3 (25) 33.0
 
May 12, 2021, 3 a.m. N/A 0.2 ppb (1) -0.7 ppb (0) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.46 ppb (6) 6.0 μg/m3 (6) 5.0 μg/m3 (21) 32.0
 
May 12, 2021, 2 a.m. N/A 0.2 ppb (1) -0.6 ppb (0) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.47 ppb (6) 6.0 μg/m3 (6) 8.0 μg/m3 (34) 34.0
 
May 12, 2021, 1 a.m. N/A 0.2 ppb (1) -0.6 ppb (0) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.45 ppb (6) 6.0 μg/m3 (6) 6.0 μg/m3 (25) 29.0
 
May 12, 2021, midnight N/A 0.2 ppb (1) -0.7 ppb (0) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.46 ppb (6) 6.0 μg/m3 (6) 5.0 μg/m3 (21) 31.0
 
May 11, 2021, 11 p.m. N/A 0.2 ppb (1) -0.7 ppb (0) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.44 ppb (5) 10.0 μg/m3 (10) 3.0 μg/m3 (13) 35.0
 
May 11, 2021, 10 p.m. N/A 0.2 ppb (1) -0.7 ppb (0) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.44 ppb (5) 9.0 μg/m3 (9) 2.0 μg/m3 (9) 38.0
 
May 11, 2021, 9 p.m. N/A 0.2 ppb (1) -0.7 ppb (0) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.45 ppb (6) 6.0 μg/m3 (6) 3.0 μg/m3 (13) 38.0
 
May 11, 2021, 8 p.m. N/A 0.2 ppb (1) -0.7 ppb (0) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.43 ppb (5) 5.0 μg/m3 (5) 1.0 μg/m3 (5) 37.0
 
May 11, 2021, 7 p.m. N/A 0.2 ppb (1) -0.7 ppb (0) N/A N/A N/A 34.0 ppb (32) N/A 5.0 μg/m3 (5) -1.0 μg/m3 (0) 32.0
 
May 11, 2021, 6 p.m. N/A 0.2 ppb (1) -0.8 ppb (0) N/A N/A N/A 32.0 ppb (30) N/A 9.0 μg/m3 (9) 3.0 μg/m3 (13) 30.0
 
May 11, 2021, 5 p.m. N/A 0.2 ppb (1) -0.8 ppb (0) N/A N/A N/A 32.0 ppb (30) N/A 10.0 μg/m3 (10) 5.0 μg/m3 (21) 30.0
 
May 11, 2021, 4 p.m. N/A 0.2 ppb (1) -0.8 ppb (0) N/A N/A 0.0 ppb (0) N/A 0.43 ppb (5) 8.0 μg/m3 (8) 1.0 μg/m3 (5) 8.0
 
May 11, 2021, 3 p.m. N/A 0.2 ppb (1) -0.7 ppb (0) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.46 ppb (6) 11.0 μg/m3 (11) 2.0 μg/m3 (9) 26.0
 
May 11, 2021, 2 p.m. N/A 0.2 ppb (1) -0.7 ppb (0) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.46 ppb (6) 8.0 μg/m3 (8) 3.0 μg/m3 (13) 25.0
 
May 11, 2021, 1 p.m. N/A 0.2 ppb (1) -0.5 ppb (0) N/A N/A 0.0 ppb (0) 22.0 ppb (21) 0.46 ppb (6) 10.0 μg/m3 (10) 4.0 μg/m3 (17) 21.0
 
May 11, 2021, noon N/A 0.2 ppb (1) -0.3 ppb (0) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.46 ppb (6) 8.0 μg/m3 (8) 5.0 μg/m3 (21) 21.0
 
May 11, 2021, 11 a.m. N/A 0.2 ppb (1) -0.1 ppb (0) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.48 ppb (6) 9.0 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
May 11, 2021, 10 a.m. N/A 0.2 ppb (1) 0.1 ppb (1) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.43 ppb (5) 8.0 μg/m3 (8) 4.0 μg/m3 (17) 19.0
 
May 11, 2021, 9 a.m. N/A 0.2 ppb (1) 0.1 ppb (1) N/A N/A N/A 19.0 ppb (18) N/A 6.0 μg/m3 (6) 5.0 μg/m3 (21) 21.0
 
May 11, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 17.0 ppb (16) 0.47 ppb (6) 7.0 μg/m3 (7) 4.0 μg/m3 (17) 17.0
 
May 11, 2021, 7 a.m. N/A 0.2 ppb (1) -0.6 ppb (0) N/A N/A 0.0 ppb (0) 16.0 ppb (15) 0.47 ppb (6) 9.0 μg/m3 (9) 4.0 μg/m3 (17) 17.0
 
May 11, 2021, 6 a.m. N/A 0.2 ppb (1) -0.5 ppb (0) N/A N/A 0.0 ppb (0) 13.0 ppb (13) 0.48 ppb (6) 7.0 μg/m3 (7) 3.0 μg/m3 (13) 13.0
 
May 11, 2021, 5 a.m. N/A 0.2 ppb (1) -0.4 ppb (0) N/A N/A 0.0 ppb (0) 14.0 ppb (13) 0.49 ppb (6) 9.0 μg/m3 (9) 1.0 μg/m3 (5) 13.0
 
May 11, 2021, 4 a.m. N/A 0.2 ppb (1) -0.4 ppb (0) N/A N/A 0.0 ppb (0) 18.0 ppb (17) 0.48 ppb (6) 12.0 μg/m3 (12) 5.0 μg/m3 (21) 21.0
 
May 11, 2021, 3 a.m. N/A 0.2 ppb (1) -0.3 ppb (0) N/A N/A 1.0 ppb (2) 23.0 ppb (22) 0.47 ppb (6) 12.0 μg/m3 (12) 7.0 μg/m3 (30) 30.0
 
May 11, 2021, 2 a.m. N/A 0.2 ppb (1) -0.3 ppb (0) N/A N/A 1.0 ppb (2) 28.0 ppb (26) 0.48 ppb (6) 11.0 μg/m3 (11) 1.0 μg/m3 (5) 26.0
 
May 11, 2021, 1 a.m. N/A 0.2 ppb (1) -0.3 ppb (0) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.46 ppb (6) 10.0 μg/m3 (10) 4.0 μg/m3 (17) 27.0
 
May 11, 2021, midnight N/A 0.2 ppb (1) -0.2 ppb (0) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.45 ppb (6) 13.0 μg/m3 (13) 5.0 μg/m3 (21) 31.0
 
May 10, 2021, 11 p.m. N/A 0.2 ppb (1) -0.2 ppb (0) N/A N/A 1.0 ppb (2) 40.0 ppb (38) 0.43 ppb (5) 7.0 μg/m3 (7) 3.0 μg/m3 (13) 38.0
 
May 10, 2021, 10 p.m. N/A 0.2 ppb (1) -0.3 ppb (0) N/A N/A 1.0 ppb (2) 42.0 ppb (39) 0.41 ppb (5) 9.0 μg/m3 (9) 0.0 μg/m3 (0) 39.0
 
May 10, 2021, 9 p.m. N/A 0.2 ppb (1) -0.3 ppb (0) N/A N/A 1.0 ppb (2) 42.0 ppb (39) 0.4 ppb (5) 6.0 μg/m3 (6) 1.0 μg/m3 (5) 39.0
 
May 10, 2021, 8 p.m. N/A 0.2 ppb (1) -0.2 ppb (0) N/A N/A 0.0 ppb (0) 41.0 ppb (38) 0.41 ppb (5) 6.0 μg/m3 (6) 4.0 μg/m3 (17) 38.0
 
May 10, 2021, 7 p.m. N/A 0.2 ppb (1) -0.3 ppb (0) N/A N/A 1.0 ppb (2) 40.0 ppb (38) 0.41 ppb (5) 9.0 μg/m3 (9) 2.0 μg/m3 (9) 38.0
 
May 10, 2021, 6 p.m. N/A 0.2 ppb (1) -0.5 ppb (0) N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.43 ppb (5) 4.0 μg/m3 (4) -2.0 μg/m3 (0) 36.0
 
May 10, 2021, 5 p.m. N/A 0.2 ppb (1) -0.6 ppb (0) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.43 ppb (5) 5.0 μg/m3 (5) 1.0 μg/m3 (5) 34.0
 
May 10, 2021, 4 p.m. N/A 0.1 ppb (1) -0.7 ppb (0) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.44 ppb (5) 5.0 μg/m3 (5) 1.0 μg/m3 (5) 31.0
 
May 10, 2021, 3 p.m. N/A 0.1 ppb (1) -0.9 ppb (0) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.45 ppb (6) 2.0 μg/m3 (2) 1.0 μg/m3 (5) 30.0
 
May 10, 2021, 2 p.m. N/A 0.1 ppb (1) -1.0 ppb (0) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.47 ppb (6) 2.0 μg/m3 (2) 3.0 μg/m3 (13) 30.0
 
May 10, 2021, 1 p.m. N/A 0.1 ppb (1) -1.1 ppb (0) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.47 ppb (6) 2.0 μg/m3 (2) 4.0 μg/m3 (17) 28.0
 
May 10, 2021, noon N/A 0.1 ppb (1) -1.2 ppb (0) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.46 ppb (6) 5.0 μg/m3 (5) 2.0 μg/m3 (9) 29.0
 
May 10, 2021, 11 a.m. N/A 0.1 ppb (1) -1.1 ppb (0) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.46 ppb (6) 6.0 μg/m3 (6) 1.0 μg/m3 (5) 30.0
 
May 10, 2021, 10 a.m. N/A 0.2 ppb (1) -1.1 ppb (0) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.42 ppb (5) 3.0 μg/m3 (3) 2.0 μg/m3 (9) 28.0
 
May 10, 2021, 9 a.m. N/A 0.2 ppb (1) -1.2 ppb (0) N/A N/A N/A 31.0 ppb (29) N/A 6.0 μg/m3 (6) 2.0 μg/m3 (9) 29.0
 
May 10, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.48 ppb (6) 8.0 μg/m3 (8) -1.0 μg/m3 (0) 30.0
 
May 10, 2021, 7 a.m. N/A 0.2 ppb (1) -0.8 ppb (0) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.47 ppb (6) 4.0 μg/m3 (4) 1.0 μg/m3 (5) 30.0
 
May 10, 2021, 6 a.m. N/A 0.2 ppb (1) -0.8 ppb (0) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.48 ppb (6) 4.0 μg/m3 (4) 3.0 μg/m3 (13) 30.0
 
May 10, 2021, 5 a.m. N/A 0.2 ppb (1) -0.8 ppb (0) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.47 ppb (6) 6.0 μg/m3 (6) 2.0 μg/m3 (9) 29.0
 
May 10, 2021, 4 a.m. N/A 0.2 ppb (1) -0.8 ppb (0) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.46 ppb (6) 7.0 μg/m3 (7) 3.0 μg/m3 (13) 28.0
 
May 10, 2021, 3 a.m. N/A 0.2 ppb (1) -0.9 ppb (0) N/A N/A 1.0 ppb (2) 31.0 ppb (29) 0.47 ppb (6) 6.0 μg/m3 (6) 3.0 μg/m3 (13) 29.0
 
May 10, 2021, 2 a.m. N/A 0.2 ppb (1) -0.9 ppb (0) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.48 ppb (6) 5.0 μg/m3 (5) 0.0 μg/m3 (0) 28.0
 
May 10, 2021, 1 a.m. N/A 0.1 ppb (1) -0.8 ppb (0) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.46 ppb (6) 4.0 μg/m3 (4) 0.0 μg/m3 (0) 28.0
 
May 10, 2021, midnight N/A 0.1 ppb (1) -0.9 ppb (0) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.44 ppb (5) 5.0 μg/m3 (5) 0.0 μg/m3 (0) 27.0
 
May 9, 2021, 11 p.m. N/A 0.2 ppb (1) -0.9 ppb (0) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.45 ppb (6) 5.0 μg/m3 (5) 1.0 μg/m3 (5) 28.0
 
May 9, 2021, 10 p.m. N/A 0.2 ppb (1) -0.9 ppb (0) N/A N/A 1.0 ppb (2) 27.0 ppb (25) 0.45 ppb (6) 6.0 μg/m3 (6) 5.0 μg/m3 (21) 25.0
 
May 9, 2021, 9 p.m. N/A 0.2 ppb (1) -0.8 ppb (0) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.42 ppb (5) 4.0 μg/m3 (4) 2.0 μg/m3 (9) 25.0
 
May 9, 2021, 8 p.m. N/A 0.2 ppb (1) -0.8 ppb (0) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.44 ppb (5) 6.0 μg/m3 (6) -2.0 μg/m3 (0) 25.0
 
May 9, 2021, 7 p.m. N/A 0.3 ppb (1) -0.7 ppb (0) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.43 ppb (5) 3.0 μg/m3 (3) -1.0 μg/m3 (0) 25.0
 
May 9, 2021, 6 p.m. N/A 0.3 ppb (1) -0.6 ppb (0) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.45 ppb (6) 1.0 μg/m3 (1) 0.0 μg/m3 (0) 23.0
 
May 9, 2021, 5 p.m. N/A 0.3 ppb (1) -0.5 ppb (0) N/A N/A 1.0 ppb (2) 24.0 ppb (23) 0.46 ppb (6) 5.0 μg/m3 (5) 1.0 μg/m3 (5) 23.0
 
May 9, 2021, 4 p.m. N/A 0.3 ppb (1) -0.5 ppb (0) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.43 ppb (5) 8.0 μg/m3 (8) 5.0 μg/m3 (21) 25.0
 
May 9, 2021, 3 p.m. N/A 0.2 ppb (1) -0.5 ppb (0) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.43 ppb (5) 17.0 μg/m3 (16) 8.0 μg/m3 (34) 34.0
 
May 9, 2021, 2 p.m. N/A 0.1 ppb (1) -0.7 ppb (0) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.44 ppb (5) 32.0 μg/m3 (30) 10.0 μg/m3 (42) 42.0
 
May 9, 2021, 1 p.m. N/A 0.1 ppb (1) -0.9 ppb (0) N/A N/A 1.0 ppb (2) 24.0 ppb (23) 0.42 ppb (5) 13.0 μg/m3 (13) 6.0 μg/m3 (25) 25.0
 
May 9, 2021, noon N/A 0.1 ppb (1) -0.9 ppb (0) N/A N/A 1.0 ppb (2) 26.0 ppb (25) 0.42 ppb (5) 16.0 μg/m3 (15) 8.0 μg/m3 (34) 34.0
 
May 9, 2021, 11 a.m. N/A 0.1 ppb (1) -0.8 ppb (0) N/A N/A 1.0 ppb (2) 27.0 ppb (25) 0.44 ppb (5) 15.0 μg/m3 (14) 9.0 μg/m3 (38) 38.0
 
May 9, 2021, 10 a.m. N/A 0.2 ppb (1) -0.7 ppb (0) N/A N/A 1.0 ppb (2) 28.0 ppb (26) 0.42 ppb (5) 19.0 μg/m3 (18) 7.0 μg/m3 (30) 30.0
 
May 9, 2021, 9 a.m. N/A 0.2 ppb (1) -0.7 ppb (0) N/A N/A N/A 30.0 ppb (28) N/A 14.0 μg/m3 (13) 6.0 μg/m3 (25) 28.0
 
May 9, 2021, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 33.0 ppb (31) 0.46 ppb (6) 12.0 μg/m3 (12) 8.0 μg/m3 (34) 34.0
 
May 9, 2021, 7 a.m. N/A 0.2 ppb (1) -0.6 ppb (0) N/A N/A 1.0 ppb (2) 38.0 ppb (36) 0.44 ppb (5) 14.0 μg/m3 (13) 8.0 μg/m3 (34) 36.0
 
May 9, 2021, 6 a.m. N/A 0.2 ppb (1) -0.6 ppb (0) N/A N/A 1.0 ppb (2) 41.0 ppb (38) 0.45 ppb (6) 25.0 μg/m3 (24) 10.0 μg/m3 (42) 42.0
 
May 9, 2021, 5 a.m. N/A 0.2 ppb (1) -0.6 ppb (0) N/A N/A 1.0 ppb (2) 43.0 ppb (40) 0.46 ppb (6) 21.0 μg/m3 (20) 8.0 μg/m3 (34) 40.0
 
May 9, 2021, 4 a.m. N/A 0.2 ppb (1) -0.7 ppb (0) N/A N/A 1.0 ppb (2) 42.0 ppb (39) 0.46 ppb (6) 19.0 μg/m3 (18) 8.0 μg/m3 (34) 39.0
 
May 9, 2021, 3 a.m. N/A 0.1 ppb (1) -0.7 ppb (0) N/A N/A 1.0 ppb (2) 39.0 ppb (37) 0.45 ppb (6) 13.0 μg/m3 (13) 8.0 μg/m3 (34) 37.0
 
May 9, 2021, 2 a.m. N/A 0.2 ppb (1) -0.7 ppb (0) N/A N/A 1.0 ppb (2) 39.0 ppb (37) 0.45 ppb (6) 15.0 μg/m3 (14) 8.0 μg/m3 (34) 37.0
 
May 9, 2021, 1 a.m. N/A 0.1 ppb (1) -0.7 ppb (0) N/A N/A 1.0 ppb (2) 39.0 ppb (37) 0.44 ppb (5) 20.0 μg/m3 (19) 12.0 μg/m3 (50) 50.0
 
May 9, 2021, midnight N/A 0.1 ppb (1) -0.7 ppb (0) N/A N/A 1.0 ppb (2) 41.0 ppb (38) 0.43 ppb (5) 20.0 μg/m3 (19) 10.0 μg/m3 (42) 42.0
 
May 8, 2021, 11 p.m. N/A 0.1 ppb (1) -0.6 ppb (0) N/A N/A 1.0 ppb (2) 44.0 ppb (41) 0.42 ppb (5) 20.0 μg/m3 (19) 9.0 μg/m3 (38) 41.0
 
May 8, 2021, 10 p.m. N/A 0.2 ppb (1) -0.5 ppb (0) N/A N/A 1.0 ppb (2) 47.0 ppb (44) 0.42 ppb (5) 24.0 μg/m3 (23) 8.0 μg/m3 (34) 44.0
 
May 8, 2021, 9 p.m. N/A 0.2 ppb (1) -0.4 ppb (0) N/A N/A 1.0 ppb (2) 49.0 ppb (46) 0.43 ppb (5) 26.0 μg/m3 (25) 9.0 μg/m3 (38) 46.0
 
May 8, 2021, 8 p.m. N/A 0.2 ppb (1) -0.4 ppb (0) N/A N/A 1.0 ppb (2) 50.0 ppb (47) 0.42 ppb (5) 22.0 μg/m3 (21) 8.0 μg/m3 (34) 47.0
 
May 8, 2021, 7 p.m. N/A 0.2 ppb (1) -0.3 ppb (0) N/A N/A 1.0 ppb (2) 51.0 ppb (48) 0.42 ppb (5) 17.0 μg/m3 (16) 2.0 μg/m3 (9) 48.0
 
May 8, 2021, 6 p.m. N/A 0.2 ppb (1) -0.4 ppb (0) N/A N/A 1.0 ppb (2) 50.0 ppb (47) 0.43 ppb (5) 17.0 μg/m3 (16) 5.0 μg/m3 (21) 47.0
 
May 8, 2021, 5 p.m. N/A 0.2 ppb (1) -0.4 ppb (0) N/A N/A 1.0 ppb (2) 47.0 ppb (44) 0.42 ppb (5) 16.0 μg/m3 (15) 6.0 μg/m3 (25) 44.0
 
May 8, 2021, 4 p.m. N/A 0.2 ppb (1) -0.5 ppb (0) N/A N/A 1.0 ppb (2) 46.0 ppb (43) 0.44 ppb (5) 14.0 μg/m3 (13) 4.0 μg/m3 (17) 43.0
 
May 8, 2021, 3 p.m. N/A 0.2 ppb (1) -0.6 ppb (0) N/A N/A 1.0 ppb (2) 41.0 ppb (38) 0.45 ppb (6) 16.0 μg/m3 (15) 6.0 μg/m3 (25) 38.0
 
May 8, 2021, 2 p.m. N/A 0.2 ppb (1) -0.6 ppb (0) N/A N/A 1.0 ppb (2) 37.0 ppb (35) 0.47 ppb (6) 10.0 μg/m3 (10) 7.0 μg/m3 (30) 35.0
 
May 8, 2021, 1 p.m. N/A 0.2 ppb (1) -0.7 ppb (0) N/A N/A 1.0 ppb (2) 39.0 ppb (37) 0.46 ppb (6) 11.0 μg/m3 (11) 7.0 μg/m3 (30) 37.0
 
May 8, 2021, noon N/A 0.1 ppb (1) -0.7 ppb (0) N/A N/A 1.0 ppb (2) 37.0 ppb (35) 0.47 ppb (6) 13.0 μg/m3 (13) 8.0 μg/m3 (34) 35.0
 
May 8, 2021, 11 a.m. N/A 0.1 ppb (1) -0.8 ppb (0) N/A N/A 1.0 ppb (2) 37.0 ppb (35) 0.46 ppb (6) 12.0 μg/m3 (12) 3.0 μg/m3 (13) 35.0
 
May 8, 2021, 10 a.m. N/A 0.1 ppb (1) -0.8 ppb (0) N/A N/A 1.0 ppb (2) 37.0 ppb (35) 0.43 ppb (5) 13.0 μg/m3 (13) 3.0 μg/m3 (13) 35.0
 
May 8, 2021, 9 a.m. N/A 0.1 ppb (1) -0.9 ppb (0) N/A N/A N/A 37.0 ppb (35) N/A 9.0 μg/m3 (9) 4.0 μg/m3 (17) 35.0
 
May 8, 2021, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 38.0 ppb (36) 0.47 ppb (6) 10.0 μg/m3 (10) 5.0 μg/m3 (21) 36.0
 
May 8, 2021, 7 a.m. N/A 0.1 ppb (1) -0.5 ppb (0) N/A N/A 1.0 ppb (2) 38.0 ppb (36) 0.47 ppb (6) 14.0 μg/m3 (13) 4.0 μg/m3 (17) 36.0
 
May 8, 2021, 6 a.m. N/A 0.1 ppb (1) -0.5 ppb (0) N/A N/A 1.0 ppb (2) 39.0 ppb (37) 0.48 ppb (6) 11.0 μg/m3 (11) 4.0 μg/m3 (17) 37.0
 
May 8, 2021, 5 a.m. N/A 0.1 ppb (1) -0.4 ppb (0) N/A N/A 1.0 ppb (2) 40.0 ppb (38) 0.48 ppb (6) 8.0 μg/m3 (8) 6.0 μg/m3 (25) 38.0
 
May 8, 2021, 4 a.m. N/A 0.1 ppb (1) -0.4 ppb (0) N/A N/A 1.0 ppb (2) 39.0 ppb (37) 0.47 ppb (6) 10.0 μg/m3 (10) 8.0 μg/m3 (34) 37.0
 
May 8, 2021, 3 a.m. N/A 0.1 ppb (1) -0.3 ppb (0) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.47 ppb (6) 14.0 μg/m3 (13) 5.0 μg/m3 (21) 37.0
 
May 8, 2021, 2 a.m. N/A 0.1 ppb (1) -0.1 ppb (0) N/A N/A 1.0 ppb (2) 39.0 ppb (37) 0.46 ppb (6) 16.0 μg/m3 (15) 6.0 μg/m3 (25) 37.0
 
May 8, 2021, 1 a.m. N/A 0.2 ppb (1) 0.0 ppb (0) N/A N/A 1.0 ppb (2) 40.0 ppb (38) 0.45 ppb (6) 9.0 μg/m3 (9) 4.0 μg/m3 (17) 38.0
 
May 8, 2021, midnight N/A 0.2 ppb (1) 0.2 ppb (1) N/A N/A 1.0 ppb (2) 41.0 ppb (38) 0.44 ppb (5) 13.0 μg/m3 (13) 4.0 μg/m3 (17) 38.0
 
May 7, 2021, 11 p.m. N/A 0.2 ppb (1) 0.2 ppb (1) N/A N/A 1.0 ppb (2) 43.0 ppb (40) 0.45 ppb (6) 17.0 μg/m3 (16) 6.0 μg/m3 (25) 40.0
 
May 7, 2021, 10 p.m. N/A 0.2 ppb (1) 0.2 ppb (1) N/A N/A 1.0 ppb (2) 46.0 ppb (43) 0.44 ppb (5) 11.0 μg/m3 (11) 2.0 μg/m3 (9) 43.0