ID: 1057

AQSQID: 400019009

Site Name: Stilwell Castnet & Ncore

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

Updated: Aug. 3, 2021, 3:56 a.m.

Location: Stilwell (D0869 Rd), OK

Reporting: True, Located: True

Current AQI: 93.0

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
Aug. 3, 2021, 3 a.m. N/A 0.2 ppb (1) 2.0 ppb (2) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.31 ppb (4) 36.0 μg/m3 (34) 28.0 μg/m3 (85) 85.0
 
Aug. 3, 2021, 2 a.m. N/A 0.2 ppb (1) 1.9 ppb (2) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.32 ppb (4) 49.0 μg/m3 (46) 32.0 μg/m3 (93) 93.0
 
Aug. 3, 2021, 1 a.m. N/A 0.2 ppb (1) 1.8 ppb (2) N/A N/A 1.0 ppb (2) 32.0 ppb (30) 0.28 ppb (4) 36.0 μg/m3 (34) 26.0 μg/m3 (81) 81.0
 
Aug. 3, 2021, midnight N/A 0.2 ppb (1) 1.5 ppb (2) N/A N/A 1.0 ppb (2) 45.0 ppb (42) 0.27 ppb (4) 41.0 μg/m3 (38) 33.0 μg/m3 (95) 95.0
 
Aug. 2, 2021, 11 p.m. N/A 0.2 ppb (1) 1.3 ppb (2) N/A N/A 1.0 ppb (2) 46.0 ppb (43) 0.26 ppb (4) 39.0 μg/m3 (37) 27.0 μg/m3 (83) 83.0
 
Aug. 2, 2021, 10 p.m. N/A 0.2 ppb (1) 1.2 ppb (2) N/A N/A 1.0 ppb (2) 46.0 ppb (43) 0.26 ppb (4) 37.0 μg/m3 (35) 26.0 μg/m3 (81) 81.0
 
Aug. 2, 2021, 9 p.m. N/A 0.2 ppb (1) 1.2 ppb (2) N/A N/A 1.0 ppb (2) 41.0 ppb (38) 0.26 ppb (4) 26.0 μg/m3 (25) 27.0 μg/m3 (83) 83.0
 
Aug. 2, 2021, 8 p.m. N/A 0.2 ppb (1) 1.2 ppb (2) N/A N/A 1.0 ppb (2) 45.0 ppb (42) 0.25 ppb (3) 34.0 μg/m3 (32) 28.0 μg/m3 (85) 85.0
 
Aug. 2, 2021, 7 p.m. N/A 0.3 ppb (1) 1.2 ppb (2) N/A N/A 1.0 ppb (2) 42.0 ppb (39) 0.22 ppb (3) 37.0 μg/m3 (35) 23.0 μg/m3 (74) 74.0
 
Aug. 2, 2021, 6 p.m. N/A 0.3 ppb (1) 1.3 ppb (2) N/A N/A 1.0 ppb (2) 41.0 ppb (38) 0.24 ppb (3) 33.0 μg/m3 (31) 25.0 μg/m3 (79) 79.0
 
Aug. 2, 2021, 5 p.m. N/A 0.3 ppb (1) 1.5 ppb (2) N/A N/A 1.0 ppb (2) 39.0 ppb (37) 0.23 ppb (3) 27.0 μg/m3 (25) 24.0 μg/m3 (77) 77.0
 
Aug. 2, 2021, 4 p.m. N/A 0.3 ppb (1) 1.9 ppb (2) N/A N/A 1.0 ppb (2) 39.0 ppb (37) 0.24 ppb (3) 33.0 μg/m3 (31) 29.0 μg/m3 (87) 87.0
 
Aug. 2, 2021, 3 p.m. N/A 0.4 ppb (1) 2.9 ppb (3) N/A N/A 1.0 ppb (2) 37.0 ppb (35) 0.25 ppb (3) 27.0 μg/m3 (25) 24.0 μg/m3 (77) 77.0
 
Aug. 2, 2021, 2 p.m. N/A 0.5 ppb (1) 3.3 ppb (4) N/A N/A 1.0 ppb (2) 24.0 ppb (23) 0.29 ppb (4) 38.0 μg/m3 (36) 25.0 μg/m3 (79) 79.0
 
Aug. 2, 2021, 1 p.m. N/A 0.4 ppb (1) 3.4 ppb (4) N/A N/A 1.0 ppb (2) 14.0 ppb (13) 0.33 ppb (4) 34.0 μg/m3 (32) 27.0 μg/m3 (83) 83.0
 
Aug. 2, 2021, noon N/A 0.3 ppb (1) 3.2 ppb (4) N/A N/A 1.0 ppb (2) 14.0 ppb (13) 0.32 ppb (4) 35.0 μg/m3 (33) 28.0 μg/m3 (85) 85.0
 
Aug. 2, 2021, 11 a.m. N/A 0.3 ppb (1) 3.3 ppb (4) N/A N/A 1.0 ppb (2) 18.0 ppb (17) 0.32 ppb (4) 37.0 μg/m3 (35) 25.0 μg/m3 (79) 79.0
 
Aug. 2, 2021, 10 a.m. N/A 0.3 ppb (1) 3.9 ppb (4) N/A N/A 1.0 ppb (2) 20.0 ppb (19) 0.31 ppb (4) 38.0 μg/m3 (36) 28.0 μg/m3 (85) 85.0
 
Aug. 2, 2021, 9 a.m. N/A 0.2 ppb (1) 5.2 ppb (5) N/A N/A N/A 21.0 ppb (20) N/A 37.0 μg/m3 (35) 27.0 μg/m3 (83) 83.0
 
Aug. 2, 2021, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 24.0 ppb (23) 0.32 ppb (4) 36.0 μg/m3 (34) 25.0 μg/m3 (79) 79.0
 
Aug. 2, 2021, 7 a.m. N/A 0.2 ppb (1) 2.1 ppb (2) N/A N/A 1.0 ppb (2) 24.0 ppb (23) 0.3 ppb (4) 34.0 μg/m3 (32) 23.0 μg/m3 (74) 74.0
 
Aug. 2, 2021, 6 a.m. N/A 0.2 ppb (1) 2.1 ppb (2) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.3 ppb (4) 36.0 μg/m3 (34) 29.0 μg/m3 (87) 87.0
 
Aug. 2, 2021, 5 a.m. N/A 0.2 ppb (1) 2.1 ppb (2) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.31 ppb (4) 37.0 μg/m3 (35) 24.0 μg/m3 (77) 77.0
 
Aug. 2, 2021, 4 a.m. N/A 0.2 ppb (1) 1.9 ppb (2) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.3 ppb (4) 38.0 μg/m3 (36) 28.0 μg/m3 (85) 85.0
 
Aug. 2, 2021, 3 a.m. N/A 0.2 ppb (1) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.32 ppb (4) 34.0 μg/m3 (32) 37.0 μg/m3 (105) 105.0
 
Aug. 2, 2021, 2 a.m. N/A 0.2 ppb (1) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.31 ppb (4) 40.0 μg/m3 (38) 31.0 μg/m3 (91) 91.0
 
Aug. 2, 2021, 1 a.m. N/A 0.2 ppb (1) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 48.0 ppb (45) 0.32 ppb (4) 45.0 μg/m3 (42) 38.0 μg/m3 (108) 108.0
 
Aug. 2, 2021, midnight N/A 0.2 ppb (1) 1.2 ppb (2) N/A N/A 0.0 ppb (0) 50.0 ppb (47) 0.29 ppb (4) 41.0 μg/m3 (38) 35.0 μg/m3 (100) 100.0
 
Aug. 1, 2021, 11 p.m. N/A 0.2 ppb (1) 1.2 ppb (2) N/A N/A 0.0 ppb (0) 50.0 ppb (47) 0.22 ppb (3) 28.0 μg/m3 (26) 15.0 μg/m3 (58) 58.0
 
Aug. 1, 2021, 10 p.m. N/A 0.2 ppb (1) 1.2 ppb (2) N/A N/A 0.0 ppb (0) 54.0 ppb (50) 0.17 ppb (3) 15.0 μg/m3 (14) 10.0 μg/m3 (42) 50.0
 
Aug. 1, 2021, 9 p.m. N/A 0.2 ppb (1) 1.2 ppb (2) N/A N/A 1.0 ppb (2) 54.0 ppb (50) 0.13 ppb (2) 14.0 μg/m3 (13) 7.0 μg/m3 (30) 50.0
 
Aug. 1, 2021, 8 p.m. N/A 0.2 ppb (1) 1.1 ppb (2) N/A N/A 0.0 ppb (0) 54.0 ppb (50) 0.12 ppb (2) 11.0 μg/m3 (11) 7.0 μg/m3 (30) 50.0
 
Aug. 1, 2021, 7 p.m. N/A 0.2 ppb (1) 1.1 ppb (2) N/A N/A 1.0 ppb (2) 53.0 ppb (50) 0.1 ppb (2) 6.0 μg/m3 (6) 4.0 μg/m3 (17) 50.0
 
Aug. 1, 2021, 6 p.m. N/A 0.2 ppb (1) 1.2 ppb (2) N/A N/A 1.0 ppb (2) 53.0 ppb (50) 0.11 ppb (2) 7.0 μg/m3 (7) 8.0 μg/m3 (34) 50.0
 
Aug. 1, 2021, 5 p.m. N/A 0.2 ppb (1) 1.4 ppb (2) N/A N/A 1.0 ppb (2) 51.0 ppb (48) 0.1 ppb (2) 10.0 μg/m3 (10) 7.0 μg/m3 (30) 48.0
 
Aug. 1, 2021, 4 p.m. N/A 0.2 ppb (1) 1.5 ppb (2) N/A N/A 1.0 ppb (2) 46.0 ppb (43) 0.1 ppb (2) 6.0 μg/m3 (6) 1.0 μg/m3 (5) 43.0
 
Aug. 1, 2021, 3 p.m. N/A 0.3 ppb (1) 1.6 ppb (2) N/A N/A 1.0 ppb (2) 40.0 ppb (38) 0.1 ppb (2) 9.0 μg/m3 (9) 1.0 μg/m3 (5) 38.0
 
Aug. 1, 2021, 2 p.m. N/A 0.2 ppb (1) 1.7 ppb (2) N/A N/A 1.0 ppb (2) 37.0 ppb (35) 0.14 ppb (2) 6.0 μg/m3 (6) 3.0 μg/m3 (13) 35.0
 
Aug. 1, 2021, 1 p.m. N/A 0.2 ppb (1) 1.8 ppb (2) N/A N/A 1.0 ppb (2) 32.0 ppb (30) 0.18 ppb (3) 6.0 μg/m3 (6) 7.0 μg/m3 (30) 30.0
 
Aug. 1, 2021, noon N/A 0.2 ppb (1) 1.9 ppb (2) N/A N/A 1.0 ppb (2) 30.0 ppb (28) 0.18 ppb (3) 7.0 μg/m3 (7) 6.0 μg/m3 (25) 28.0
 
Aug. 1, 2021, 11 a.m. N/A 0.2 ppb (1) 1.8 ppb (2) N/A N/A 1.0 ppb (2) 30.0 ppb (28) 0.18 ppb (3) 16.0 μg/m3 (15) 6.0 μg/m3 (25) 28.0
 
Aug. 1, 2021, 10 a.m. N/A 0.2 ppb (1) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.15 ppb (2) 11.0 μg/m3 (11) 7.0 μg/m3 (30) 32.0
 
Aug. 1, 2021, 9 a.m. N/A 0.2 ppb (1) 1.6 ppb (2) N/A N/A N/A 36.0 ppb (34) N/A 14.0 μg/m3 (13) 6.0 μg/m3 (25) 34.0
 
Aug. 1, 2021, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 24.0 ppb (23) 0.19 ppb (3) 22.0 μg/m3 (21) 12.0 μg/m3 (50) 50.0
 
Aug. 1, 2021, 7 a.m. N/A 0.2 ppb (1) 2.7 ppb (3) N/A N/A 1.0 ppb (2) 10.0 ppb (10) 0.17 ppb (3) 17.0 μg/m3 (16) 7.0 μg/m3 (30) 30.0
 
Aug. 1, 2021, 6 a.m. N/A 0.2 ppb (1) 2.1 ppb (2) N/A N/A 1.0 ppb (2) 8.0 ppb (8) 0.18 ppb (3) 17.0 μg/m3 (16) 9.0 μg/m3 (38) 38.0
 
Aug. 1, 2021, 5 a.m. N/A 0.1 ppb (1) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 12.0 ppb (12) 0.19 ppb (3) 18.0 μg/m3 (17) 12.0 μg/m3 (50) 50.0
 
Aug. 1, 2021, 4 a.m. N/A 0.1 ppb (1) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 17.0 ppb (16) 0.19 ppb (3) 26.0 μg/m3 (25) 9.0 μg/m3 (38) 38.0
 
Aug. 1, 2021, 3 a.m. N/A 0.1 ppb (1) 1.3 ppb (2) N/A N/A 1.0 ppb (2) 23.0 ppb (22) 0.17 ppb (3) 20.0 μg/m3 (19) 11.0 μg/m3 (46) 46.0
 
Aug. 1, 2021, 2 a.m. N/A 0.1 ppb (1) 1.1 ppb (2) N/A N/A 1.0 ppb (2) 29.0 ppb (27) 0.14 ppb (2) 14.0 μg/m3 (13) 11.0 μg/m3 (46) 46.0
 
Aug. 1, 2021, 1 a.m. N/A 0.2 ppb (1) 1.1 ppb (2) N/A N/A 1.0 ppb (2) 33.0 ppb (31) 0.2 ppb (3) 20.0 μg/m3 (19) 8.0 μg/m3 (34) 34.0
 
Aug. 1, 2021, midnight N/A 0.2 ppb (1) 1.2 ppb (2) N/A N/A 1.0 ppb (2) 36.0 ppb (34) 0.2 ppb (3) 19.0 μg/m3 (18) 11.0 μg/m3 (46) 46.0
 
July 31, 2021, 11 p.m. N/A 0.2 ppb (1) 1.2 ppb (2) N/A N/A 0.0 ppb (0) 51.0 ppb (48) 0.2 ppb (3) 19.0 μg/m3 (18) 16.0 μg/m3 (60) 60.0
 
July 31, 2021, 10 p.m. N/A 0.2 ppb (1) 1.1 ppb (2) N/A N/A 0.0 ppb (0) 57.0 ppb (58) 0.2 ppb (3) 23.0 μg/m3 (22) 11.0 μg/m3 (46) 58.0
 
July 31, 2021, 9 p.m. N/A 0.2 ppb (1) 1.1 ppb (2) N/A N/A 0.0 ppb (0) 56.0 ppb (55) 0.2 ppb (3) 21.0 μg/m3 (20) 13.0 μg/m3 (53) 55.0
 
July 31, 2021, 8 p.m. N/A 0.3 ppb (1) 1.1 ppb (2) N/A N/A 0.0 ppb (0) 55.0 ppb (51) 0.19 ppb (3) 24.0 μg/m3 (23) 10.0 μg/m3 (42) 51.0
 
July 31, 2021, 7 p.m. N/A 0.2 ppb (1) 1.1 ppb (2) N/A N/A 0.0 ppb (0) 55.0 ppb (51) 0.17 ppb (3) 22.0 μg/m3 (21) 7.0 μg/m3 (30) 51.0
 
July 31, 2021, 6 p.m. N/A 0.3 ppb (1) 1.2 ppb (2) N/A N/A 0.0 ppb (0) 53.0 ppb (50) 0.19 ppb (3) 23.0 μg/m3 (22) 12.0 μg/m3 (50) 50.0
 
July 31, 2021, 5 p.m. N/A 0.3 ppb (1) 1.2 ppb (2) N/A N/A 0.0 ppb (0) 48.0 ppb (45) 0.16 ppb (3) 17.0 μg/m3 (16) 14.0 μg/m3 (55) 55.0
 
July 31, 2021, 4 p.m. N/A 0.3 ppb (1) 1.3 ppb (2) N/A N/A 1.0 ppb (2) 45.0 ppb (42) 0.11 ppb (2) 18.0 μg/m3 (17) 9.0 μg/m3 (38) 42.0
 
July 31, 2021, 3 p.m. N/A 0.2 ppb (1) 1.4 ppb (2) N/A N/A 1.0 ppb (2) 40.0 ppb (38) 0.13 ppb (2) 24.0 μg/m3 (23) 12.0 μg/m3 (50) 50.0
 
July 31, 2021, 2 p.m. N/A 0.2 ppb (1) 1.6 ppb (2) N/A N/A 1.0 ppb (2) 37.0 ppb (35) 0.14 ppb (2) 20.0 μg/m3 (19) 14.0 μg/m3 (55) 55.0
 
July 31, 2021, 1 p.m. N/A 0.2 ppb (1) 1.7 ppb (2) N/A N/A 1.0 ppb (2) 26.0 ppb (25) 0.18 ppb (3) 20.0 μg/m3 (19) 12.0 μg/m3 (50) 50.0
 
July 31, 2021, noon N/A 0.2 ppb (1) 1.9 ppb (2) N/A N/A 1.0 ppb (2) 13.0 ppb (13) 0.22 ppb (3) 19.0 μg/m3 (18) 9.0 μg/m3 (38) 38.0
 
July 31, 2021, 11 a.m. N/A 0.2 ppb (1) 2.2 ppb (3) N/A N/A 1.0 ppb (2) 13.0 ppb (13) 0.22 ppb (3) 17.0 μg/m3 (16) 11.0 μg/m3 (46) 46.0
 
July 31, 2021, 10 a.m. N/A 0.2 ppb (1) 1.7 ppb (2) N/A N/A 1.0 ppb (2) 15.0 ppb (14) 0.21 ppb (3) 17.0 μg/m3 (16) 12.0 μg/m3 (50) 50.0
 
July 31, 2021, 9 a.m. N/A 0.3 ppb (1) 1.8 ppb (2) N/A N/A N/A 15.0 ppb (14) N/A 17.0 μg/m3 (16) 12.0 μg/m3 (50) 50.0
 
July 31, 2021, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 15.0 ppb (14) 0.23 ppb (3) 15.0 μg/m3 (14) 15.0 μg/m3 (58) 58.0
 
July 31, 2021, 7 a.m. N/A 0.2 ppb (1) 1.4 ppb (2) N/A N/A 1.0 ppb (2) 16.0 ppb (15) 0.22 ppb (3) 17.0 μg/m3 (16) 12.0 μg/m3 (50) 50.0
 
July 31, 2021, 6 a.m. N/A 0.2 ppb (1) 1.4 ppb (2) N/A N/A 1.0 ppb (2) 23.0 ppb (22) 0.22 ppb (3) 20.0 μg/m3 (19) 13.0 μg/m3 (53) 53.0
 
July 31, 2021, 5 a.m. N/A 0.2 ppb (1) 1.4 ppb (2) N/A N/A 1.0 ppb (2) 30.0 ppb (28) 0.21 ppb (3) 23.0 μg/m3 (22) 17.0 μg/m3 (62) 62.0
 
July 31, 2021, 4 a.m. N/A 0.2 ppb (1) 1.3 ppb (2) N/A N/A 1.0 ppb (2) 33.0 ppb (31) 0.19 ppb (3) 22.0 μg/m3 (21) 12.0 μg/m3 (50) 50.0
 
July 31, 2021, 3 a.m. N/A 0.3 ppb (1) 1.2 ppb (2) N/A N/A 1.0 ppb (2) 22.0 ppb (21) 0.19 ppb (3) 25.0 μg/m3 (24) 14.0 μg/m3 (55) 55.0
 
July 31, 2021, 2 a.m. N/A 0.2 ppb (1) 1.1 ppb (2) N/A N/A 1.0 ppb (2) 20.0 ppb (19) 0.16 ppb (3) 25.0 μg/m3 (24) 12.0 μg/m3 (50) 50.0
 
July 31, 2021, 1 a.m. N/A 0.2 ppb (1) 1.0 ppb (1) N/A N/A 1.0 ppb (2) 26.0 ppb (25) 0.19 ppb (3) 22.0 μg/m3 (21) 9.0 μg/m3 (38) 38.0
 
July 31, 2021, midnight N/A 0.3 ppb (1) 0.9 ppb (1) N/A N/A 1.0 ppb (2) 40.0 ppb (38) 0.21 ppb (3) 26.0 μg/m3 (25) 15.0 μg/m3 (58) 58.0
 
July 30, 2021, 11 p.m. N/A 0.3 ppb (1) 1.0 ppb (1) N/A N/A 1.0 ppb (2) 45.0 ppb (42) 0.22 ppb (3) 24.0 μg/m3 (23) 8.0 μg/m3 (34) 42.0
 
July 30, 2021, 10 p.m. N/A 0.3 ppb (1) 1.0 ppb (1) N/A N/A 1.0 ppb (2) 45.0 ppb (42) 0.21 ppb (3) 27.0 μg/m3 (25) 19.0 μg/m3 (66) 66.0
 
July 30, 2021, 9 p.m. N/A 0.3 ppb (1) 1.0 ppb (1) N/A N/A 1.0 ppb (2) 44.0 ppb (41) 0.22 ppb (3) 23.0 μg/m3 (22) 16.0 μg/m3 (60) 60.0
 
July 30, 2021, 8 p.m. N/A 0.2 ppb (1) 1.1 ppb (2) N/A N/A 1.0 ppb (2) 42.0 ppb (39) 0.2 ppb (3) 25.0 μg/m3 (24) 16.0 μg/m3 (60) 60.0
 
July 30, 2021, 7 p.m. N/A 0.3 ppb (1) 1.2 ppb (2) N/A N/A 1.0 ppb (2) 42.0 ppb (39) 0.19 ppb (3) 24.0 μg/m3 (23) 17.0 μg/m3 (62) 62.0
 
July 30, 2021, 6 p.m. N/A 0.3 ppb (1) 1.3 ppb (2) N/A N/A 1.0 ppb (2) 40.0 ppb (38) 0.19 ppb (3) 19.0 μg/m3 (18) 14.0 μg/m3 (55) 55.0
 
July 30, 2021, 5 p.m. N/A 0.4 ppb (1) 1.4 ppb (2) N/A N/A 1.0 ppb (2) 40.0 ppb (38) 0.16 ppb (3) 23.0 μg/m3 (22) 14.0 μg/m3 (55) 55.0
 
July 30, 2021, 4 p.m. N/A 0.5 ppb (1) 1.6 ppb (2) N/A N/A 1.0 ppb (2) 38.0 ppb (36) 0.13 ppb (2) 17.0 μg/m3 (16) 10.0 μg/m3 (42) 42.0
 
July 30, 2021, 3 p.m. N/A 0.6 ppb (1) 1.9 ppb (2) N/A N/A 1.0 ppb (2) 35.0 ppb (33) 0.12 ppb (2) 27.0 μg/m3 (25) 16.0 μg/m3 (60) 60.0
 
July 30, 2021, 2 p.m. N/A 0.8 ppb (1) 2.2 ppb (3) N/A N/A 1.0 ppb (2) 21.0 ppb (20) 0.17 ppb (3) 20.0 μg/m3 (19) 11.0 μg/m3 (46) 46.0
 
July 30, 2021, 1 p.m. N/A 0.8 ppb (1) 2.4 ppb (3) N/A N/A 1.0 ppb (2) 9.0 ppb (9) 0.21 ppb (3) 16.0 μg/m3 (15) 12.0 μg/m3 (50) 50.0
 
July 30, 2021, noon N/A 0.6 ppb (1) 2.4 ppb (3) N/A N/A 1.0 ppb (2) 3.0 ppb (3) 0.22 ppb (3) 15.0 μg/m3 (14) 7.0 μg/m3 (30) 30.0
 
July 30, 2021, 11 a.m. N/A 0.3 ppb (1) 2.2 ppb (3) N/A N/A 1.0 ppb (2) 1.0 ppb (1) 0.21 ppb (3) 14.0 μg/m3 (13) 4.0 μg/m3 (17) 17.0
 
July 30, 2021, 10 a.m. N/A 0.3 ppb (1) 1.8 ppb (2) N/A N/A 1.0 ppb (2) 4.0 ppb (4) 0.2 ppb (3) 17.0 μg/m3 (16) 6.0 μg/m3 (25) 25.0
 
July 30, 2021, 9 a.m. N/A 0.2 ppb (1) 1.5 ppb (2) N/A N/A N/A 5.0 ppb (5) N/A 16.0 μg/m3 (15) 8.0 μg/m3 (34) 34.0
 
July 30, 2021, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 7.0 ppb (7) 0.22 ppb (3) 13.0 μg/m3 (13) 6.0 μg/m3 (25) 25.0
 
July 30, 2021, 7 a.m. N/A 0.1 ppb (1) 1.6 ppb (2) N/A N/A 1.0 ppb (2) 5.0 ppb (5) 0.21 ppb (3) 14.0 μg/m3 (13) 6.0 μg/m3 (25) 25.0
 
July 30, 2021, 6 a.m. N/A 0.1 ppb (1) 1.6 ppb (2) N/A N/A 1.0 ppb (2) 6.0 ppb (6) 0.22 ppb (3) 14.0 μg/m3 (13) 10.0 μg/m3 (42) 42.0
 
July 30, 2021, 5 a.m. N/A 0.1 ppb (1) 1.5 ppb (2) N/A N/A 0.0 ppb (0) 8.0 ppb (8) 0.21 ppb (3) 13.0 μg/m3 (13) 12.0 μg/m3 (50) 50.0
 
July 30, 2021, 4 a.m. N/A 0.1 ppb (1) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 6.0 ppb (6) 0.19 ppb (3) 15.0 μg/m3 (14) 8.0 μg/m3 (34) 34.0
 
July 30, 2021, 3 a.m. N/A 0.2 ppb (1) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 12.0 ppb (12) 0.2 ppb (3) 18.0 μg/m3 (17) 11.0 μg/m3 (46) 46.0
 
July 30, 2021, 2 a.m. N/A 0.2 ppb (1) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 15.0 ppb (14) 0.19 ppb (3) 18.0 μg/m3 (17) 14.0 μg/m3 (55) 55.0
 
July 30, 2021, 1 a.m. N/A 0.2 ppb (1) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 17.0 ppb (16) 0.19 ppb (3) 19.0 μg/m3 (18) 7.0 μg/m3 (30) 30.0
 
July 30, 2021, midnight N/A 0.2 ppb (1) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.17 ppb (3) 13.0 μg/m3 (13) 12.0 μg/m3 (50) 50.0
 
July 29, 2021, 11 p.m. N/A 0.2 ppb (1) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.17 ppb (3) 16.0 μg/m3 (15) 10.0 μg/m3 (42) 42.0
 
July 29, 2021, 10 p.m. N/A 0.2 ppb (1) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.19 ppb (3) 16.0 μg/m3 (15) 11.0 μg/m3 (46) 46.0
 
July 29, 2021, 9 p.m. N/A 0.3 ppb (1) 0.8 ppb (1) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.19 ppb (3) 18.0 μg/m3 (17) 14.0 μg/m3 (55) 55.0
 
July 29, 2021, 8 p.m. N/A 0.3 ppb (1) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.18 ppb (3) 17.0 μg/m3 (16) 18.0 μg/m3 (64) 64.0
 
July 29, 2021, 7 p.m. N/A 0.4 ppb (1) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.16 ppb (3) 22.0 μg/m3 (21) 14.0 μg/m3 (55) 55.0
 
July 29, 2021, 6 p.m. N/A 0.4 ppb (1) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.15 ppb (2) 18.0 μg/m3 (17) 16.0 μg/m3 (60) 60.0
 
July 29, 2021, 5 p.m. N/A 0.5 ppb (1) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.14 ppb (2) 21.0 μg/m3 (20) 16.0 μg/m3 (60) 60.0
 
July 29, 2021, 4 p.m. N/A 0.6 ppb (1) 1.1 ppb (2) N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.1 ppb (2) 22.0 μg/m3 (21) 16.0 μg/m3 (60) 60.0
 
July 29, 2021, 3 p.m. N/A 0.8 ppb (1) 1.2 ppb (2) N/A N/A 1.0 ppb (2) 35.0 ppb (33) 0.09 ppb (2) 21.0 μg/m3 (20) 15.0 μg/m3 (58) 58.0
 
July 29, 2021, 2 p.m. N/A 0.9 ppb (1) 1.3 ppb (2) N/A N/A 1.0 ppb (2) 27.0 ppb (25) 0.13 ppb (2) 18.0 μg/m3 (17) 10.0 μg/m3 (42) 42.0
 
July 29, 2021, 1 p.m. N/A 1.3 ppb (2) 3.4 ppb (4) N/A N/A 1.0 ppb (2) 17.0 ppb (16) 0.21 ppb (3) 22.0 μg/m3 (21) 14.0 μg/m3 (55) 55.0
 
July 29, 2021, noon N/A 1.2 ppb (2) 3.8 ppb (4) N/A N/A 1.0 ppb (2) 3.0 ppb (3) 0.22 ppb (3) 19.0 μg/m3 (18) 6.0 μg/m3 (25) 25.0
 
July 29, 2021, 11 a.m. N/A 0.8 ppb (1) 3.6 ppb (4) N/A N/A 1.0 ppb (2) 1.0 ppb (1) 0.19 ppb (3) 15.0 μg/m3 (14) 5.0 μg/m3 (21) 21.0
 
July 29, 2021, 10 a.m. N/A 0.6 ppb (1) 3.3 ppb (4) N/A N/A 1.0 ppb (2) 3.0 ppb (3) 0.19 ppb (3) 11.0 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
July 29, 2021, 9 a.m. N/A 0.4 ppb (1) 3.0 ppb (3) N/A N/A N/A 4.0 ppb (4) N/A 9.0 μg/m3 (9) 4.0 μg/m3 (17) 17.0
 
July 29, 2021, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 3.0 ppb (3) 0.24 ppb (3) 10.0 μg/m3 (10) 5.0 μg/m3 (21) 21.0
 
July 29, 2021, 7 a.m. N/A 0.4 ppb (1) 3.0 ppb (3) N/A N/A 1.0 ppb (2) 3.0 ppb (3) 0.21 ppb (3) 7.0 μg/m3 (7) 4.0 μg/m3 (17) 17.0
 
July 29, 2021, 6 a.m. N/A 0.3 ppb (1) 2.9 ppb (3) N/A N/A 1.0 ppb (2) 2.0 ppb (2) 0.22 ppb (3) 11.0 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
July 29, 2021, 5 a.m. N/A 0.2 ppb (1) 3.0 ppb (3) N/A N/A 0.0 ppb (0) 2.0 ppb (2) 0.22 ppb (3) 14.0 μg/m3 (13) 8.0 μg/m3 (34) 34.0
 
July 29, 2021, 4 a.m. N/A 0.2 ppb (1) 1.9 ppb (2) N/A N/A 0.0 ppb (0) 6.0 ppb (6) 0.19 ppb (3) 14.0 μg/m3 (13) 8.0 μg/m3 (34) 34.0
 
July 29, 2021, 3 a.m. N/A 0.2 ppb (1) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 10.0 ppb (10) 0.17 ppb (3) 14.0 μg/m3 (13) 15.0 μg/m3 (58) 58.0
 
July 29, 2021, 2 a.m. N/A 0.1 ppb (1) 1.1 ppb (2) N/A N/A 1.0 ppb (2) 15.0 ppb (14) 0.15 ppb (2) 20.0 μg/m3 (19) 10.0 μg/m3 (42) 42.0
 
July 29, 2021, 1 a.m. N/A 0.1 ppb (1) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 22.0 ppb (21) 0.18 ppb (3) 20.0 μg/m3 (19) 16.0 μg/m3 (60) 60.0
 
July 29, 2021, midnight N/A 0.2 ppb (1) 1.1 ppb (2) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.19 ppb (3) 24.0 μg/m3 (23) 13.0 μg/m3 (53) 53.0
 
July 28, 2021, 11 p.m. N/A 0.2 ppb (1) 1.1 ppb (2) N/A N/A 0.0 ppb (0) 47.0 ppb (44) 0.19 ppb (3) 23.0 μg/m3 (22) 15.0 μg/m3 (58) 58.0
 
July 28, 2021, 10 p.m. N/A 0.3 ppb (1) 1.1 ppb (2) N/A N/A 0.0 ppb (0) 47.0 ppb (44) 0.19 ppb (3) 26.0 μg/m3 (25) 15.0 μg/m3 (58) 58.0
 
July 28, 2021, 9 p.m. N/A 0.3 ppb (1) 1.2 ppb (2) N/A N/A 0.0 ppb (0) 48.0 ppb (45) 0.18 ppb (3) 26.0 μg/m3 (25) 16.0 μg/m3 (60) 60.0
 
July 28, 2021, 8 p.m. N/A 0.3 ppb (1) 1.2 ppb (2) N/A N/A 0.0 ppb (0) 48.0 ppb (45) 0.17 ppb (3) 29.0 μg/m3 (27) 17.0 μg/m3 (62) 62.0
 
July 28, 2021, 7 p.m. N/A 0.3 ppb (1) 1.2 ppb (2) N/A N/A 0.0 ppb (0) 46.0 ppb (43) 0.17 ppb (3) 26.0 μg/m3 (25) 15.0 μg/m3 (58) 58.0
 
July 28, 2021, 6 p.m. N/A 0.4 ppb (1) 1.3 ppb (2) N/A N/A 1.0 ppb (2) 42.0 ppb (39) 0.15 ppb (2) 27.0 μg/m3 (25) 20.0 μg/m3 (68) 68.0
 
July 28, 2021, 5 p.m. N/A 0.5 ppb (1) 1.3 ppb (2) N/A N/A 1.0 ppb (2) 48.0 ppb (45) 0.15 ppb (2) 35.0 μg/m3 (33) 22.0 μg/m3 (72) 72.0
 
July 28, 2021, 4 p.m. N/A 0.6 ppb (1) 1.3 ppb (2) N/A N/A 1.0 ppb (2) 44.0 ppb (41) 0.12 ppb (2) 33.0 μg/m3 (31) 20.0 μg/m3 (68) 68.0
 
July 28, 2021, 3 p.m. N/A 0.8 ppb (1) 1.4 ppb (2) N/A N/A 1.0 ppb (2) 32.0 ppb (30) 0.1 ppb (2) 28.0 μg/m3 (26) 21.0 μg/m3 (70) 70.0
 
July 28, 2021, 2 p.m. N/A 1.2 ppb (2) 2.3 ppb (3) N/A N/A 1.0 ppb (2) 26.0 ppb (25) 0.13 ppb (2) 22.0 μg/m3 (21) 9.0 μg/m3 (38) 38.0
 
July 28, 2021, 1 p.m. N/A 1.7 ppb (2) 3.4 ppb (4) N/A N/A 1.0 ppb (2) 12.0 ppb (12) 0.19 ppb (3) 24.0 μg/m3 (23) 9.0 μg/m3 (38) 38.0
 
July 28, 2021, noon N/A 2.2 ppb (3) 4.3 ppb (5) N/A N/A 1.0 ppb (2) 2.0 ppb (2) 0.21 ppb (3) 16.0 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
July 28, 2021, 11 a.m. N/A 1.4 ppb (2) 4.2 ppb (4) N/A N/A 1.0 ppb (2) 1.0 ppb (1) 0.21 ppb (3) 10.0 μg/m3 (10) 3.0 μg/m3 (13) 13.0
 
July 28, 2021, 10 a.m. N/A 1.9 ppb (2) 4.2 ppb (4) N/A N/A 1.0 ppb (2) 1.0 ppb (1) 0.2 ppb (3) 17.0 μg/m3 (16) N/A 16.0
 
July 28, 2021, 9 a.m. N/A 0.9 ppb (1) 3.9 ppb (4) N/A N/A N/A 1.0 ppb (1) N/A 16.0 μg/m3 (15) 1.0 μg/m3 (5) 15.0
 
July 28, 2021, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 1.0 ppb (1) 0.24 ppb (3) 13.0 μg/m3 (13) 3.0 μg/m3 (13) 13.0
 
July 28, 2021, 7 a.m. N/A 1.1 ppb (2) 4.8 ppb (5) N/A N/A 1.0 ppb (2) 1.0 ppb (1) 0.21 ppb (3) 17.0 μg/m3 (16) 3.0 μg/m3 (13) 16.0
 
July 28, 2021, 6 a.m. N/A 0.5 ppb (1) 2.3 ppb (3) N/A N/A 1.0 ppb (2) 3.0 ppb (3) 0.21 ppb (3) 18.0 μg/m3 (17) 2.0 μg/m3 (9) 17.0
 
July 28, 2021, 5 a.m. N/A 0.4 ppb (1) 2.2 ppb (3) N/A N/A 0.0 ppb (0) 5.0 ppb (5) 0.18 ppb (3) 12.0 μg/m3 (12) 2.0 μg/m3 (9) 12.0
 
July 28, 2021, 4 a.m. N/A 0.3 ppb (1) 2.0 ppb (2) N/A N/A 0.0 ppb (0) 4.0 ppb (4) 0.17 ppb (3) 11.0 μg/m3 (11) 2.0 μg/m3 (9) 11.0
 
July 28, 2021, 3 a.m. N/A 0.2 ppb (1) 1.2 ppb (2) N/A N/A 0.0 ppb (0) 8.0 ppb (8) 0.16 ppb (3) 13.0 μg/m3 (13) 4.0 μg/m3 (17) 17.0
 
July 28, 2021, 2 a.m. N/A 0.2 ppb (1) 1.1 ppb (2) N/A N/A 0.0 ppb (0) 11.0 ppb (11) 0.14 ppb (2) 13.0 μg/m3 (13) 3.0 μg/m3 (13) 13.0
 
July 28, 2021, 1 a.m. N/A 0.2 ppb (1) 1.1 ppb (2) N/A N/A 1.0 ppb (2) 17.0 ppb (16) 0.11 ppb (2) 10.0 μg/m3 (10) 3.0 μg/m3 (13) 16.0
 
July 28, 2021, midnight N/A 0.2 ppb (1) 1.1 ppb (2) N/A N/A 1.0 ppb (2) 27.0 ppb (25) 0.09 ppb (2) 11.0 μg/m3 (11) 3.0 μg/m3 (13) 25.0
 
July 27, 2021, 11 p.m. N/A 0.2 ppb (1) 1.0 ppb (1) N/A N/A 1.0 ppb (2) 40.0 ppb (38) 0.07 ppb (2) 10.0 μg/m3 (10) 0.0 μg/m3 (0) 38.0
 
July 27, 2021, 10 p.m. N/A 0.1 ppb (1) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 51.0 ppb (48) 0.14 ppb (2) 5.0 μg/m3 (5) -2.0 μg/m3 (0) 48.0
 
July 27, 2021, 9 p.m. N/A 0.2 ppb (1) 1.1 ppb (2) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.17 ppb (3) 27.0 μg/m3 (25) 17.0 μg/m3 (62) 62.0
 
July 27, 2021, 8 p.m. N/A 0.2 ppb (1) 1.0 ppb (1) N/A N/A 1.0 ppb (2) 38.0 ppb (36) 0.17 ppb (3) 29.0 μg/m3 (27) 12.0 μg/m3 (50) 50.0
 
July 27, 2021, 7 p.m. N/A 0.2 ppb (1) 0.9 ppb (1) N/A N/A 1.0 ppb (2) 37.0 ppb (35) 0.16 ppb (3) 32.0 μg/m3 (30) 16.0 μg/m3 (60) 60.0
 
July 27, 2021, 6 p.m. N/A 0.3 ppb (1) 1.1 ppb (2) N/A N/A 1.0 ppb (2) 36.0 ppb (34) 0.24 ppb (3) 35.0 μg/m3 (33) 17.0 μg/m3 (62) 62.0
 
July 27, 2021, 5 p.m. N/A 0.4 ppb (1) 1.8 ppb (2) N/A N/A 1.0 ppb (2) 36.0 ppb (34) 0.49 ppb (6) 87.0 μg/m3 (67) 25.0 μg/m3 (79) 79.0
 
July 27, 2021, 4 p.m. N/A 0.4 ppb (1) 1.8 ppb (2) N/A N/A 1.0 ppb (2) 35.0 ppb (33) 0.1 ppb (2) 40.0 μg/m3 (38) 20.0 μg/m3 (68) 68.0
 
July 27, 2021, 3 p.m. N/A 0.4 ppb (1) 1.9 ppb (2) N/A N/A 1.0 ppb (2) 33.0 ppb (31) 0.14 ppb (2) 40.0 μg/m3 (38) 16.0 μg/m3 (60) 60.0
 
July 27, 2021, 2 p.m. N/A 0.5 ppb (1) 2.2 ppb (3) N/A N/A 1.0 ppb (2) 23.0 ppb (22) 0.11 ppb (2) 31.0 μg/m3 (29) 16.0 μg/m3 (60) 60.0
 
July 27, 2021, 1 p.m. N/A 0.6 ppb (1) 2.5 ppb (3) N/A N/A 1.0 ppb (2) 14.0 ppb (13) 0.14 ppb (2) 26.0 μg/m3 (25) 11.0 μg/m3 (46) 46.0
 
July 27, 2021, noon N/A 0.5 ppb (1) 2.5 ppb (3) N/A N/A 1.0 ppb (2) 4.0 ppb (4) 0.18 ppb (3) 19.0 μg/m3 (18) 8.0 μg/m3 (34) 34.0
 
July 27, 2021, 11 a.m. N/A 0.3 ppb (1) 2.2 ppb (3) N/A N/A 1.0 ppb (2) 2.0 ppb (2) 0.15 ppb (2) 13.0 μg/m3 (13) 7.0 μg/m3 (30) 30.0
 
July 27, 2021, 10 a.m. N/A 0.3 ppb (1) 2.0 ppb (2) N/A N/A 1.0 ppb (2) 4.0 ppb (4) 0.15 ppb (2) 14.0 μg/m3 (13) 5.0 μg/m3 (21) 21.0
 
July 27, 2021, 9 a.m. N/A 0.3 ppb (1) 3.0 ppb (3) N/A N/A N/A 3.0 ppb (3) N/A 12.0 μg/m3 (12) 5.0 μg/m3 (21) 21.0
 
July 27, 2021, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 4.0 ppb (4) 0.18 ppb (3) 11.0 μg/m3 (11) 9.0 μg/m3 (38) 38.0
 
July 27, 2021, 7 a.m. N/A 0.2 ppb (1) 2.6 ppb (3) N/A N/A 1.0 ppb (2) 8.0 ppb (8) 0.14 ppb (2) 13.0 μg/m3 (13) 7.0 μg/m3 (30) 30.0
 
July 27, 2021, 6 a.m. N/A 0.2 ppb (1) 2.8 ppb (3) N/A N/A 1.0 ppb (2) 8.0 ppb (8) 0.15 ppb (2) 15.0 μg/m3 (14) 8.0 μg/m3 (34) 34.0
 
July 27, 2021, 5 a.m. N/A 0.2 ppb (1) 3.0 ppb (3) N/A N/A 0.0 ppb (0) 11.0 ppb (11) 0.14 ppb (2) 18.0 μg/m3 (17) 10.0 μg/m3 (42) 42.0
 
July 27, 2021, 4 a.m. N/A 0.2 ppb (1) 1.6 ppb (2) N/A N/A 0.0 ppb (0) 17.0 ppb (16) 0.13 ppb (2) 16.0 μg/m3 (15) 10.0 μg/m3 (42) 42.0