AQSQID: 400019009

Site Name: Stilwell Castnet & Ncore

Location: Stilwell (D0869 Rd), OK

Reporting: True, Located: True

Current AQI: 33.0

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
April 8, 2020, 5 p.m. N/A N/A 1.7 ppb (2) N/A N/A 1.0 ppb (1) 32.0 ppb (25) 0.26 ppb (3) 22.0 μg/m3 (20) 7.9 μg/m3 (33) 33.0
 
April 8, 2020, 4 p.m. N/A N/A 1.7 ppb (2) N/A N/A 1.0 ppb (1) 28.0 ppb (22) 0.27 ppb (3) 19.0 μg/m3 (17) 5.2 μg/m3 (22) 22.0
 
April 8, 2020, 3 p.m. N/A N/A 1.6 ppb (1) N/A N/A 1.0 ppb (1) 23.0 ppb (18) 0.27 ppb (3) 17.0 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
April 8, 2020, 2 p.m. N/A N/A 1.6 ppb (1) N/A N/A 1.0 ppb (1) 22.0 ppb (17) 0.29 ppb (3) 14.0 μg/m3 (13) 7.0 μg/m3 (29) 29.0
 
April 8, 2020, 1 p.m. N/A N/A 1.5 ppb (1) N/A N/A 1.0 ppb (1) 20.0 ppb (15) 0.27 ppb (3) 14.0 μg/m3 (13) 5.1 μg/m3 (21) 21.0
 
April 8, 2020, noon N/A N/A 1.3 ppb (1) N/A N/A 0.0 ppb (0) 18.0 ppb (14) 0.27 ppb (3) 10.0 μg/m3 (9) 3.1 μg/m3 (13) 14.0
 
April 8, 2020, 11 a.m. N/A N/A 1.3 ppb (1) N/A N/A 0.0 ppb (0) 19.0 ppb (15) 0.27 ppb (3) 7.0 μg/m3 (6) 4.0 μg/m3 (17) 17.0
 
April 8, 2020, 10 a.m. N/A N/A 1.2 ppb (1) N/A N/A 1.0 ppb (1) 20.0 ppb (15) 0.26 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
April 8, 2020, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 22.0 ppb (17) 0.26 ppb (3) 8.0 μg/m3 (7) 5.1 μg/m3 (21) 21.0
 
April 8, 2020, 8 a.m. N/A N/A 1.5 ppb (1) N/A N/A 0.0 ppb (0) 23.0 ppb (18) 0.2 ppb (2) 8.0 μg/m3 (7) 6.9 μg/m3 (29) 29.0
 
April 8, 2020, 7 a.m. N/A N/A 1.5 ppb (1) N/A N/A N/A 25.0 ppb (19) N/A 10.0 μg/m3 (9) 7.0 μg/m3 (29) 29.0
 
April 8, 2020, 6 a.m. N/A N/A 1.6 ppb (1) N/A N/A 1.0 ppb (1) 28.0 ppb (22) 0.27 ppb (3) 8.0 μg/m3 (7) 5.1 μg/m3 (21) 22.0
 
April 8, 2020, 5 a.m. N/A N/A 1.5 ppb (1) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.28 ppb (3) 15.0 μg/m3 (14) 6.9 μg/m3 (29) 29.0
 
April 8, 2020, 4 a.m. N/A N/A 1.5 ppb (1) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.28 ppb (3) 12.0 μg/m3 (11) 6.1 μg/m3 (25) 25.0
 
April 8, 2020, 3 a.m. N/A N/A 1.5 ppb (1) N/A N/A 1.0 ppb (1) 32.0 ppb (25) 0.28 ppb (3) 11.0 μg/m3 (10) 7.0 μg/m3 (29) 29.0
 
April 8, 2020, 2 a.m. N/A N/A 1.5 ppb (1) N/A N/A 1.0 ppb (1) 30.0 ppb (23) 0.29 ppb (3) 14.0 μg/m3 (13) 8.9 μg/m3 (37) 37.0
 
April 8, 2020, 1 a.m. N/A N/A 1.6 ppb (1) N/A N/A 1.0 ppb (1) 30.0 ppb (23) 0.27 ppb (3) 16.0 μg/m3 (15) 6.2 μg/m3 (26) 26.0
 
April 8, 2020, midnight N/A N/A 1.7 ppb (2) N/A N/A 1.0 ppb (1) 34.0 ppb (26) 0.27 ppb (3) 18.0 μg/m3 (16) 6.0 μg/m3 (25) 26.0
 
April 7, 2020, 11 p.m. N/A N/A 1.7 ppb (2) N/A N/A 1.0 ppb (1) 35.0 ppb (27) 0.27 ppb (3) 15.0 μg/m3 (14) 7.9 μg/m3 (33) 33.0
 
April 7, 2020, 10 p.m. N/A N/A 1.8 ppb (2) N/A N/A 1.0 ppb (1) 35.0 ppb (27) 0.26 ppb (3) 21.0 μg/m3 (19) 8.0 μg/m3 (33) 33.0
 
April 7, 2020, 9 p.m. N/A N/A 1.8 ppb (2) N/A N/A 1.0 ppb (1) 35.0 ppb (27) 0.26 ppb (3) 13.0 μg/m3 (12) 8.0 μg/m3 (33) 33.0
 
April 7, 2020, 8 p.m. N/A N/A 1.8 ppb (2) N/A N/A 1.0 ppb (1) 33.0 ppb (25) 0.27 ppb (3) 17.0 μg/m3 (15) 8.0 μg/m3 (33) 33.0
 
April 7, 2020, 7 p.m. N/A N/A 1.8 ppb (2) N/A N/A 1.0 ppb (1) 32.0 ppb (25) 0.28 ppb (3) 12.0 μg/m3 (11) 7.1 μg/m3 (30) 30.0
 
April 7, 2020, 6 p.m. N/A N/A 1.9 ppb (2) N/A N/A 1.0 ppb (1) 31.0 ppb (24) 0.29 ppb (3) 13.0 μg/m3 (12) 9.9 μg/m3 (41) 41.0
 
April 7, 2020, 5 p.m. N/A N/A 1.9 ppb (2) N/A N/A 1.0 ppb (1) 29.0 ppb (22) 0.28 ppb (3) 18.0 μg/m3 (16) 11.9 μg/m3 (50) 50.0
 
April 7, 2020, 4 p.m. N/A N/A 2.0 ppb (2) N/A N/A 1.0 ppb (1) 29.0 ppb (22) 0.29 ppb (3) 13.0 μg/m3 (12) 12.0 μg/m3 (50) 50.0
 
April 7, 2020, 3 p.m. N/A N/A 2.0 ppb (2) N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.28 ppb (3) 22.0 μg/m3 (20) 11.1 μg/m3 (46) 46.0
 
April 7, 2020, 2 p.m. N/A N/A 1.9 ppb (2) N/A N/A 0.0 ppb (0) 25.0 ppb (19) 0.29 ppb (3) 18.0 μg/m3 (16) 10.1 μg/m3 (42) 42.0
 
April 7, 2020, 1 p.m. N/A N/A 1.9 ppb (2) N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.28 ppb (3) 15.0 μg/m3 (14) 9.1 μg/m3 (38) 38.0
 
April 7, 2020, noon N/A N/A 1.8 ppb (2) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.28 ppb (3) 18.0 μg/m3 (16) 10.0 μg/m3 (42) 42.0
 
April 7, 2020, 11 a.m. N/A N/A 1.7 ppb (2) N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.28 ppb (3) 13.0 μg/m3 (12) 10.0 μg/m3 (42) 42.0
 
April 7, 2020, 10 a.m. N/A N/A 1.4 ppb (1) N/A N/A 1.0 ppb (1) 30.0 ppb (23) 0.26 ppb (3) 15.0 μg/m3 (14) 13.8 μg/m3 (54) 54.0
 
April 7, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.27 ppb (3) 13.0 μg/m3 (12) 11.2 μg/m3 (47) 47.0
 
April 7, 2020, 8 a.m. N/A N/A 1.2 ppb (1) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.19 ppb (2) 16.0 μg/m3 (15) 10.1 μg/m3 (42) 42.0
 
April 7, 2020, 7 a.m. N/A N/A 1.2 ppb (1) N/A N/A N/A 34.0 ppb (26) N/A 14.0 μg/m3 (13) 10.0 μg/m3 (42) 42.0
 
April 7, 2020, 6 a.m. N/A N/A 1.2 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.27 ppb (3) 17.0 μg/m3 (15) 12.9 μg/m3 (52) 52.0
 
April 7, 2020, 5 a.m. N/A N/A 1.2 ppb (1) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.26 ppb (3) 11.0 μg/m3 (10) 10.2 μg/m3 (42) 42.0
 
April 7, 2020, 4 a.m. N/A N/A 1.1 ppb (1) N/A N/A 1.0 ppb (1) 36.0 ppb (28) 0.25 ppb (3) 15.0 μg/m3 (14) 8.1 μg/m3 (34) 34.0
 
April 7, 2020, 3 a.m. N/A N/A 1.1 ppb (1) N/A N/A 1.0 ppb (1) 36.0 ppb (28) 0.25 ppb (3) 14.0 μg/m3 (13) 7.1 μg/m3 (30) 30.0
 
April 7, 2020, 2 a.m. N/A N/A 1.2 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.26 ppb (3) 14.0 μg/m3 (13) 8.0 μg/m3 (33) 33.0
 
April 7, 2020, 1 a.m. N/A N/A 1.1 ppb (1) N/A N/A 1.0 ppb (1) 37.0 ppb (28) 0.24 ppb (3) 16.0 μg/m3 (15) 7.1 μg/m3 (30) 30.0
 
April 7, 2020, midnight N/A N/A 1.2 ppb (1) N/A N/A 1.0 ppb (1) 37.0 ppb (28) 0.25 ppb (3) 15.0 μg/m3 (14) 8.0 μg/m3 (33) 33.0
 
April 6, 2020, 11 p.m. N/A N/A 1.1 ppb (1) N/A N/A 1.0 ppb (1) 37.0 ppb (28) 0.26 ppb (3) 13.0 μg/m3 (12) 3.3 μg/m3 (14) 28.0
 
April 6, 2020, 10 p.m. N/A N/A 1.1 ppb (1) N/A N/A 1.0 ppb (1) 36.0 ppb (28) 0.25 ppb (3) 9.0 μg/m3 (8) 6.8 μg/m3 (28) 28.0
 
April 6, 2020, 9 p.m. N/A N/A 1.2 ppb (1) N/A N/A 1.0 ppb (1) 36.0 ppb (28) 0.25 ppb (3) 15.0 μg/m3 (14) 7.0 μg/m3 (29) 29.0
 
April 6, 2020, 8 p.m. N/A N/A 1.2 ppb (1) N/A N/A 1.0 ppb (1) 36.0 ppb (28) 0.25 ppb (3) 17.0 μg/m3 (15) 7.0 μg/m3 (29) 29.0
 
April 6, 2020, 7 p.m. N/A N/A 1.2 ppb (1) N/A N/A 1.0 ppb (1) 37.0 ppb (28) 0.27 ppb (3) 11.0 μg/m3 (10) 7.9 μg/m3 (33) 33.0
 
April 6, 2020, 6 p.m. N/A N/A 1.2 ppb (1) N/A N/A 1.0 ppb (1) 38.0 ppb (29) 0.26 ppb (3) 11.0 μg/m3 (10) 8.0 μg/m3 (33) 33.0
 
April 6, 2020, 5 p.m. N/A N/A 1.2 ppb (1) N/A N/A 1.0 ppb (1) 36.0 ppb (28) 0.26 ppb (3) 14.0 μg/m3 (13) 7.1 μg/m3 (30) 30.0
 
April 6, 2020, 4 p.m. N/A N/A 1.2 ppb (1) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.27 ppb (3) 9.0 μg/m3 (8) 6.1 μg/m3 (25) 25.0
 
April 6, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A N/A 19.0
 
April 6, 2020, 2 p.m. N/A N/A 1.4 ppb (1) N/A N/A 0.0 ppb (0) 24.0 ppb (18) 0.26 ppb (3) 12.0 μg/m3 (11) 5.1 μg/m3 (21) 21.0
 
April 6, 2020, 1 p.m. N/A N/A 1.4 ppb (1) N/A N/A 0.0 ppb (0) 22.0 ppb (17) 0.27 ppb (3) 13.0 μg/m3 (12) 4.1 μg/m3 (17) 17.0
 
April 6, 2020, noon N/A N/A 1.4 ppb (1) N/A N/A 0.0 ppb (0) 22.0 ppb (17) 0.27 ppb (3) 10.0 μg/m3 (9) 4.0 μg/m3 (17) 17.0
 
April 6, 2020, 11 a.m. N/A N/A 1.5 ppb (1) N/A N/A 0.0 ppb (0) 19.0 ppb (15) 0.28 ppb (3) 9.0 μg/m3 (8) 5.9 μg/m3 (25) 25.0
 
April 6, 2020, 10 a.m. N/A N/A 1.5 ppb (1) N/A N/A 0.0 ppb (0) 19.0 ppb (15) 0.27 ppb (3) 8.0 μg/m3 (7) 2.2 μg/m3 (9) 15.0
 
April 6, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 19.0 ppb (15) 0.27 ppb (3) 10.0 μg/m3 (9) 1.1 μg/m3 (5) 15.0
 
April 6, 2020, 8 a.m. N/A N/A 1.9 ppb (2) N/A N/A 0.0 ppb (0) 22.0 ppb (17) 0.2 ppb (2) 9.0 μg/m3 (8) 6.7 μg/m3 (28) 28.0
 
April 6, 2020, 7 a.m. N/A N/A 2.1 ppb (2) N/A N/A N/A 19.0 ppb (15) N/A 10.0 μg/m3 (9) 12.7 μg/m3 (51) 51.0
 
April 6, 2020, 6 a.m. N/A N/A 2.2 ppb (2) N/A N/A 0.0 ppb (0) 15.0 ppb (12) 0.29 ppb (3) 12.0 μg/m3 (11) 15.9 μg/m3 (58) 58.0
 
April 6, 2020, 5 a.m. N/A N/A 2.0 ppb (2) N/A N/A 1.0 ppb (1) 17.0 ppb (13) 0.3 ppb (3) 17.0 μg/m3 (15) 6.5 μg/m3 (27) 27.0
 
April 6, 2020, 4 a.m. N/A N/A 1.9 ppb (2) N/A N/A 1.0 ppb (1) 18.0 ppb (14) 0.3 ppb (3) 12.0 μg/m3 (11) 8.9 μg/m3 (37) 37.0
 
April 6, 2020, 3 a.m. N/A N/A 1.8 ppb (2) N/A N/A 1.0 ppb (1) 18.0 ppb (14) 0.31 ppb (3) 15.0 μg/m3 (14) 14.7 μg/m3 (56) 56.0
 
April 6, 2020, 2 a.m. N/A N/A 1.8 ppb (2) N/A N/A 1.0 ppb (1) 17.0 ppb (13) 0.3 ppb (3) 12.0 μg/m3 (11) 5.5 μg/m3 (23) 23.0
 
April 6, 2020, 1 a.m. N/A N/A 1.7 ppb (2) N/A N/A 1.0 ppb (1) 18.0 ppb (14) 0.29 ppb (3) 11.0 μg/m3 (10) 5.0 μg/m3 (21) 21.0
 
April 6, 2020, midnight N/A N/A 1.7 ppb (2) N/A N/A 1.0 ppb (1) 20.0 ppb (15) 0.29 ppb (3) 11.0 μg/m3 (10) 4.1 μg/m3 (17) 17.0
 
April 5, 2020, 11 p.m. N/A N/A 1.7 ppb (2) N/A N/A 1.0 ppb (1) 21.0 ppb (16) 0.28 ppb (3) 9.0 μg/m3 (8) 4.0 μg/m3 (17) 17.0
 
April 5, 2020, 10 p.m. N/A N/A 1.8 ppb (2) N/A N/A 1.0 ppb (1) 21.0 ppb (16) 0.27 ppb (3) 10.0 μg/m3 (9) 2.0 μg/m3 (8) 16.0
 
April 5, 2020, 9 p.m. N/A N/A 2.0 ppb (2) N/A N/A 1.0 ppb (1) 19.0 ppb (15) 0.28 ppb (3) 8.0 μg/m3 (7) -2.0 μg/m3 (0) 15.0
 
April 5, 2020, 8 p.m. N/A N/A 2.2 ppb (2) N/A N/A 1.0 ppb (1) 15.0 ppb (12) 0.28 ppb (3) 6.0 μg/m3 (5) 2.0 μg/m3 (8) 12.0
 
April 5, 2020, 7 p.m. N/A N/A 2.4 ppb (2) N/A N/A 1.0 ppb (1) 10.0 ppb (8) 0.28 ppb (3) 6.0 μg/m3 (5) 5.0 μg/m3 (21) 21.0
 
April 5, 2020, 6 p.m. N/A N/A 2.4 ppb (2) N/A N/A 1.0 ppb (1) 8.0 ppb (6) 0.29 ppb (3) 5.0 μg/m3 (5) 4.0 μg/m3 (17) 17.0
 
April 5, 2020, 5 p.m. N/A N/A 2.3 ppb (2) N/A N/A 1.0 ppb (1) 7.0 ppb (5) 0.28 ppb (3) 4.0 μg/m3 (4) 6.0 μg/m3 (25) 25.0
 
April 5, 2020, 4 p.m. N/A N/A 2.3 ppb (2) N/A N/A 1.0 ppb (1) 6.0 ppb (5) 0.28 ppb (3) 6.0 μg/m3 (5) -1.0 μg/m3 (0) 5.0
 
April 5, 2020, 3 p.m. N/A N/A 2.2 ppb (2) N/A N/A 1.0 ppb (1) 5.0 ppb (4) 0.28 ppb (3) 5.0 μg/m3 (5) 2.0 μg/m3 (8) 8.0
 
April 5, 2020, 2 p.m. N/A N/A 2.2 ppb (2) N/A N/A 1.0 ppb (1) 5.0 ppb (4) 0.26 ppb (3) 3.0 μg/m3 (3) 4.0 μg/m3 (17) 17.0
 
April 5, 2020, 1 p.m. N/A N/A 2.3 ppb (2) N/A N/A 1.0 ppb (1) 5.0 ppb (4) 0.27 ppb (3) 4.0 μg/m3 (4) 3.0 μg/m3 (12) 12.0
 
April 5, 2020, noon N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A N/A N/A 3.0
 
April 5, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) N/A N/A N/A 2.0
 
April 5, 2020, 10 a.m. N/A N/A 3.8 ppb (4) N/A N/A 1.0 ppb (1) 2.0 ppb (2) 0.27 ppb (3) 10.0 μg/m3 (9) 1.0 μg/m3 (4) 9.0
 
April 5, 2020, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 4.0 ppb (3) 0.27 ppb (3) 10.0 μg/m3 (9) -1.0 μg/m3 (0) 9.0
 
April 5, 2020, 8 a.m. N/A N/A 3.0 ppb (3) N/A N/A 1.0 ppb (1) 5.0 ppb (4) 0.19 ppb (2) 7.0 μg/m3 (6) 3.0 μg/m3 (12) 12.0
 
April 5, 2020, 7 a.m. N/A N/A 3.3 ppb (3) N/A N/A N/A 5.0 ppb (4) N/A 8.0 μg/m3 (7) N/A 7.0
 
April 5, 2020, 6 a.m. N/A N/A 3.7 ppb (3) N/A N/A 0.0 ppb (0) 5.0 ppb (4) 0.27 ppb (3) 9.0 μg/m3 (8) 1.0 μg/m3 (4) 8.0
 
April 5, 2020, 5 a.m. N/A N/A 3.4 ppb (3) N/A N/A 1.0 ppb (1) 5.0 ppb (4) 0.28 ppb (3) 8.0 μg/m3 (7) 0.0 μg/m3 (0) 7.0
 
April 5, 2020, 4 a.m. N/A N/A 3.3 ppb (3) N/A N/A 1.0 ppb (1) 6.0 ppb (5) 0.27 ppb (3) 9.0 μg/m3 (8) 2.0 μg/m3 (8) 8.0
 
April 5, 2020, 3 a.m. N/A N/A 3.1 ppb (3) N/A N/A 1.0 ppb (1) 7.0 ppb (5) 0.28 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
April 5, 2020, 2 a.m. N/A N/A 2.9 ppb (3) N/A N/A 0.0 ppb (0) 8.0 ppb (6) 0.28 ppb (3) 7.0 μg/m3 (6) 2.1 μg/m3 (9) 9.0
 
April 5, 2020, 1 a.m. N/A N/A 2.6 ppb (2) N/A N/A 1.0 ppb (1) 9.0 ppb (7) 0.27 ppb (3) 12.0 μg/m3 (11) 2.0 μg/m3 (8) 11.0
 
April 5, 2020, midnight N/A N/A 2.5 ppb (2) N/A N/A 1.0 ppb (1) 10.0 ppb (8) 0.27 ppb (3) 9.0 μg/m3 (8) 3.0 μg/m3 (12) 12.0
 
April 4, 2020, 11 p.m. N/A N/A 2.3 ppb (2) N/A N/A 1.0 ppb (1) 11.0 ppb (8) 0.26 ppb (3) 9.0 μg/m3 (8) 4.9 μg/m3 (20) 20.0
 
April 4, 2020, 10 p.m. N/A N/A 2.2 ppb (2) N/A N/A 1.0 ppb (1) 11.0 ppb (8) 0.25 ppb (3) 11.0 μg/m3 (10) 3.1 μg/m3 (13) 13.0
 
April 4, 2020, 9 p.m. N/A N/A 2.2 ppb (2) N/A N/A 1.0 ppb (1) 11.0 ppb (8) 0.24 ppb (3) 2.0 μg/m3 (2) -0.8 μg/m3 (0) 8.0
 
April 4, 2020, 8 p.m. N/A N/A 1.9 ppb (2) N/A N/A 1.0 ppb (1) 11.0 ppb (8) 0.24 ppb (3) 3.0 μg/m3 (3) -2.0 μg/m3 (0) 8.0
 
April 4, 2020, 7 p.m. N/A N/A 1.7 ppb (2) N/A N/A 1.0 ppb (1) 12.0 ppb (9) 0.23 ppb (3) 2.0 μg/m3 (2) -1.1 μg/m3 (0) 9.0
 
April 4, 2020, 6 p.m. N/A N/A 1.6 ppb (1) N/A N/A 0.0 ppb (0) 12.0 ppb (9) 0.23 ppb (3) 6.0 μg/m3 (5) 0.9 μg/m3 (4) 9.0
 
April 4, 2020, 5 p.m. N/A N/A 1.5 ppb (1) N/A N/A 0.0 ppb (0) 13.0 ppb (10) 0.23 ppb (3) 8.0 μg/m3 (7) 2.0 μg/m3 (8) 10.0
 
April 4, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A N/A N/A 9.0
 
April 4, 2020, 3 p.m. N/A N/A 1.4 ppb (1) N/A N/A 0.0 ppb (0) 13.0 ppb (10) 0.24 ppb (3) 6.0 μg/m3 (5) -0.9 μg/m3 (0) 10.0
 
April 4, 2020, 2 p.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
 
April 4, 2020, 1 p.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
 
April 4, 2020, noon N/A N/A 1.8 ppb (2) N/A N/A 0.0 ppb (0) 15.0 ppb (12) 0.23 ppb (3) 3.0 μg/m3 (3) 0.9 μg/m3 (4) 12.0
 
April 4, 2020, 11 a.m. N/A N/A 2.1 ppb (2) N/A N/A 0.0 ppb (0) 13.0 ppb (10) 0.25 ppb (3) 4.0 μg/m3 (4) 0.1 μg/m3 (0) 10.0
 
April 4, 2020, 10 a.m. N/A N/A 2.1 ppb (2) N/A N/A 0.0 ppb (0) 12.0 ppb (9) 0.23 ppb (3) 4.0 μg/m3 (4) -1.0 μg/m3 (0) 9.0
 
April 4, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A N/A N/A 8.0
 
April 4, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A N/A N/A 8.0
 
April 4, 2020, 7 a.m. N/A N/A 2.7 ppb (3) N/A N/A N/A 11.0 ppb (8) N/A 5.0 μg/m3 (5) 3.0 μg/m3 (12) 12.0
 
April 4, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A N/A N/A 9.0
 
April 4, 2020, 5 a.m. N/A N/A 2.8 ppb (3) N/A N/A 0.0 ppb (0) 11.0 ppb (8) 0.25 ppb (3) 3.0 μg/m3 (3) 1.2 μg/m3 (5) 8.0
 
April 4, 2020, 4 a.m. N/A N/A 2.5 ppb (2) N/A N/A 0.0 ppb (0) 11.0 ppb (8) 0.24 ppb (3) 4.0 μg/m3 (4) 0.1 μg/m3 (0) 8.0
 
April 4, 2020, 3 a.m. N/A N/A 2.3 ppb (2) N/A N/A 0.0 ppb (0) 12.0 ppb (9) 0.25 ppb (3) 6.0 μg/m3 (5) -1.0 μg/m3 (0) 9.0
 
April 4, 2020, 2 a.m. N/A N/A 2.0 ppb (2) N/A N/A 0.0 ppb (0) 12.0 ppb (9) 0.24 ppb (3) 3.0 μg/m3 (3) -0.1 μg/m3 (0) 9.0
 
April 4, 2020, 1 a.m. N/A N/A 1.9 ppb (2) N/A N/A 0.0 ppb (0) 13.0 ppb (10) 0.22 ppb (2) 4.0 μg/m3 (4) 1.0 μg/m3 (4) 10.0
 
April 4, 2020, midnight N/A N/A 1.8 ppb (2) N/A N/A 0.0 ppb (0) 13.0 ppb (10) 0.21 ppb (2) 4.0 μg/m3 (4) 2.9 μg/m3 (12) 12.0
 
April 3, 2020, 11 p.m. N/A N/A 1.8 ppb (2) N/A N/A 0.0 ppb (0) 14.0 ppb (11) 0.21 ppb (2) 3.0 μg/m3 (3) 4.0 μg/m3 (17) 17.0
 
April 3, 2020, 10 p.m. N/A N/A 1.8 ppb (2) N/A N/A 0.0 ppb (0) 14.0 ppb (11) 0.22 ppb (2) 3.0 μg/m3 (3) 4.0 μg/m3 (17) 17.0
 
April 3, 2020, 9 p.m. N/A N/A 1.8 ppb (2) N/A N/A 0.0 ppb (0) 13.0 ppb (10) 0.21 ppb (2) 3.0 μg/m3 (3) 2.1 μg/m3 (9) 10.0
 
April 3, 2020, 8 p.m. N/A N/A 1.8 ppb (2) N/A N/A 0.0 ppb (0) 11.0 ppb (8) 0.21 ppb (2) 3.0 μg/m3 (3) 2.0 μg/m3 (8) 8.0
 
April 3, 2020, 7 p.m. N/A N/A 1.9 ppb (2) N/A N/A 0.0 ppb (0) 11.0 ppb (8) 0.21 ppb (2) 6.0 μg/m3 (5) 2.0 μg/m3 (8) 8.0
 
April 3, 2020, 6 p.m. N/A N/A 1.9 ppb (2) N/A N/A 0.0 ppb (0) 10.0 ppb (8) 0.22 ppb (2) 4.0 μg/m3 (4) 3.0 μg/m3 (12) 12.0
 
April 3, 2020, 5 p.m. N/A N/A 1.9 ppb (2) N/A N/A 1.0 ppb (1) 7.0 ppb (5) 0.24 ppb (3) 4.0 μg/m3 (4) 4.0 μg/m3 (17) 17.0
 
April 3, 2020, 4 p.m. N/A N/A 1.7 ppb (2) N/A N/A 1.0 ppb (1) 6.0 ppb (5) 0.27 ppb (3) 7.0 μg/m3 (6) 4.0 μg/m3 (17) 17.0
 
April 3, 2020, 3 p.m. N/A N/A 1.4 ppb (1) N/A N/A 1.0 ppb (1) 24.0 ppb (18) 0.27 ppb (3) 6.0 μg/m3 (5) 4.0 μg/m3 (17) 18.0
 
April 3, 2020, 2 p.m. N/A N/A 1.3 ppb (1) N/A N/A 1.0 ppb (1) 36.0 ppb (28) 0.26 ppb (3) 6.0 μg/m3 (5) 3.1 μg/m3 (13) 28.0
 
April 3, 2020, 1 p.m. N/A N/A 1.3 ppb (1) N/A N/A 1.0 ppb (1) 35.0 ppb (27) 0.26 ppb (3) 8.0 μg/m3 (7) 4.0 μg/m3 (17) 27.0
 
April 3, 2020, noon N/A N/A 1.3 ppb (1) N/A N/A 1.0 ppb (1) 35.0 ppb (27) 0.26 ppb (3) 8.0 μg/m3 (7) 4.0 μg/m3 (17) 27.0
 
April 3, 2020, 11 a.m. N/A N/A 1.2 ppb (1) N/A N/A 1.0 ppb (1) 36.0 ppb (28) 0.27 ppb (3) 7.0 μg/m3 (6) 7.8 μg/m3 (32) 32.0
 
April 3, 2020, 10 a.m. N/A N/A 1.1 ppb (1) N/A N/A 1.0 ppb (1) 37.0 ppb (28) 0.27 ppb (3) 6.0 μg/m3 (5) 9.0 μg/m3 (38) 38.0
 
April 3, 2020, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 38.0 ppb (29) 0.27 ppb (3) 7.0 μg/m3 (6) 9.0 μg/m3 (38) 38.0
 
April 3, 2020, 8 a.m. N/A N/A 1.9 ppb (2) N/A N/A 1.0 ppb (1) 38.0 ppb (29) 0.2 ppb (2) 10.0 μg/m3 (9) 10.9 μg/m3 (45) 45.0
 
April 3, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A N/A 31.0
 
April 3, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A N/A 32.0
 
April 3, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A N/A 33.0
 
April 3, 2020, 4 a.m. N/A N/A 2.0 ppb (2) N/A N/A 1.0 ppb (1) 44.0 ppb (34) 0.25 ppb (3) 10.0 μg/m3 (9) 8.0 μg/m3 (33) 34.0
 
April 3, 2020, 3 a.m. N/A N/A 1.9 ppb (2) N/A N/A 1.0 ppb (1) 44.0 ppb (34) 0.24 ppb (3) 11.0 μg/m3 (10) 9.0 μg/m3 (38) 38.0
 
April 3, 2020, 2 a.m. N/A N/A 1.8 ppb (2) N/A N/A 1.0 ppb (1) 45.0 ppb (35) 0.24 ppb (3) 15.0 μg/m3 (14) 8.1 μg/m3 (34) 35.0
 
April 3, 2020, 1 a.m. N/A N/A 1.7 ppb (2) N/A N/A 1.0 ppb (1) 47.0 ppb (36) 0.23 ppb (3) 16.0 μg/m3 (15) 5.2 μg/m3 (22) 36.0
 
April 3, 2020, midnight N/A N/A 1.7 ppb (2) N/A N/A 1.0 ppb (1) 48.0 ppb (37) 0.21 ppb (2) 13.0 μg/m3 (12) 3.1 μg/m3 (13) 37.0
 
April 2, 2020, 11 p.m. N/A N/A 1.7 ppb (2) N/A N/A 1.0 ppb (1) 49.0 ppb (38) 0.2 ppb (2) 15.0 μg/m3 (14) 4.0 μg/m3 (17) 38.0
 
April 2, 2020, 10 p.m. N/A N/A 1.7 ppb (2) N/A N/A 1.0 ppb (1) 49.0 ppb (38) 0.23 ppb (3) 16.0 μg/m3 (15) 5.0 μg/m3 (21) 38.0
 
April 2, 2020, 9 p.m. N/A N/A 1.6 ppb (1) N/A N/A 1.0 ppb (1) 50.0 ppb (38) 0.27 ppb (3) 16.0 μg/m3 (15) 7.9 μg/m3 (33) 38.0
 
April 2, 2020, 8 p.m. N/A N/A 1.7 ppb (2) N/A N/A 1.0 ppb (1) 49.0 ppb (38) 0.3 ppb (3) 12.0 μg/m3 (11) 5.2 μg/m3 (22) 38.0
 
April 2, 2020, 7 p.m. N/A N/A 1.7 ppb (2) N/A N/A 1.0 ppb (1) 49.0 ppb (38) 0.28 ppb (3) 18.0 μg/m3 (16) 3.1 μg/m3 (13) 38.0
 
April 2, 2020, 6 p.m. N/A N/A 1.8 ppb (2) N/A N/A 1.0 ppb (1) 49.0 ppb (38) 0.28 ppb (3) 15.0 μg/m3 (14) 5.9 μg/m3 (25) 38.0
 
April 2, 2020, 5 p.m. N/A N/A 1.8 ppb (2) N/A N/A 1.0 ppb (1) 49.0 ppb (38) 0.24 ppb (3) 20.0 μg/m3 (18) 5.1 μg/m3 (21) 38.0
 
April 2, 2020, 4 p.m. N/A N/A 1.8 ppb (2) N/A N/A 0.0 ppb (0) 46.0 ppb (35) 0.23 ppb (3) 19.0 μg/m3 (17) 7.9 μg/m3 (33) 35.0
 
April 2, 2020, 3 p.m. N/A N/A 1.8 ppb (2) N/A N/A 0.0 ppb (0) 45.0 ppb (35) 0.23 ppb (3) 20.0 μg/m3 (18) 6.1 μg/m3 (25) 35.0
 
April 2, 2020, 2 p.m. N/A N/A 1.7 ppb (2) N/A N/A 0.0 ppb (0) 44.0 ppb (34) 0.22 ppb (2) 13.0 μg/m3 (12) 6.0 μg/m3 (25) 34.0
 
April 2, 2020, 1 p.m. N/A N/A 1.8 ppb (2) N/A N/A 0.0 ppb (0) 44.0 ppb (34) 0.23 ppb (3) 16.0 μg/m3 (15) 7.0 μg/m3 (29) 34.0
 
April 2, 2020, noon N/A N/A 1.7 ppb (2) N/A N/A 0.0 ppb (0) 43.0 ppb (33) 0.23 ppb (3) 14.0 μg/m3 (13) 5.1 μg/m3 (21) 33.0
 
April 2, 2020, 11 a.m. N/A N/A 1.6 ppb (1) N/A N/A 0.0 ppb (0) 42.0 ppb (32) 0.24 ppb (3) 12.0 μg/m3 (11) 6.0 μg/m3 (25) 32.0
 
April 2, 2020, 10 a.m. N/A N/A 1.4 ppb (1) N/A N/A 0.0 ppb (0) 42.0 ppb (32) 0.23 ppb (3) 16.0 μg/m3 (15) 3.2 μg/m3 (13) 32.0
 
April 2, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.24 ppb (3) 13.0 μg/m3 (12) 4.9 μg/m3 (20) 31.0
 
April 2, 2020, 8 a.m. N/A N/A 1.8 ppb (2) N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.19 ppb (2) 21.0 μg/m3 (19) 5.0 μg/m3 (21) 31.0
 
April 2, 2020, 7 a.m. N/A N/A 1.8 ppb (2) N/A N/A N/A 40.0 ppb (31) N/A 14.0 μg/m3 (13) 6.9 μg/m3 (29) 31.0
 
April 2, 2020, 6 a.m. N/A N/A 1.8 ppb (2) N/A N/A 0.0 ppb (0) 42.0 ppb (32) 0.25 ppb (3) 16.0 μg/m3 (15) 5.1 μg/m3 (21) 32.0
 
April 2, 2020, 5 a.m. N/A N/A 1.9 ppb (2) N/A N/A 1.0 ppb (1) 42.0 ppb (32) 0.26 ppb (3) 12.0 μg/m3 (11) 5.0 μg/m3 (21) 32.0
 
April 2, 2020, 4 a.m. N/A N/A 2.1 ppb (2) N/A N/A 1.0 ppb (1) 41.0 ppb (32) 0.26 ppb (3) 16.0 μg/m3 (15) 4.1 μg/m3 (17) 32.0
 
April 2, 2020, 3 a.m. N/A N/A 2.1 ppb (2) N/A N/A 1.0 ppb (1) 40.0 ppb (31) 0.26 ppb (3) 16.0 μg/m3 (15) 5.0 μg/m3 (21) 31.0
 
April 2, 2020, 2 a.m. N/A N/A 1.9 ppb (2) N/A N/A 1.0 ppb (1) 42.0 ppb (32) 0.3 ppb (3) 10.0 μg/m3 (9) 6.0 μg/m3 (25) 32.0
 
April 2, 2020, 1 a.m. N/A N/A 1.9 ppb (2) N/A N/A 1.0 ppb (1) 44.0 ppb (34) 0.37 ppb (4) 18.0 μg/m3 (16) 6.0 μg/m3 (25) 34.0
 
April 2, 2020, midnight N/A N/A 1.8 ppb (2) N/A N/A 1.0 ppb (1) 45.0 ppb (35) 0.42 ppb (5) 15.0 μg/m3 (14) 1.3 μg/m3 (5) 35.0
 
April 1, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A N/A 36.0
 
April 1, 2020, 10 p.m. N/A N/A 1.8 ppb (2) N/A N/A 1.0 ppb (1) 49.0 ppb (38) 0.29 ppb (3) 11.0 μg/m3 (10) 6.8 μg/m3 (28) 38.0
 
April 1, 2020, 9 p.m. N/A N/A 1.8 ppb (2) N/A N/A 1.0 ppb (1) 49.0 ppb (38) 0.29 ppb (3) 11.0 μg/m3 (10) 7.0 μg/m3 (29) 38.0
 
April 1, 2020, 8 p.m. N/A N/A 1.9 ppb (2) N/A N/A 1.0 ppb (1) 50.0 ppb (38) 0.28 ppb (3) 17.0 μg/m3 (15) 7.0 μg/m3 (29) 38.0
 
April 1, 2020, 7 p.m. N/A N/A 1.9 ppb (2) N/A N/A 1.0 ppb (1) 50.0 ppb (38) 0.32 ppb (4) 17.0 μg/m3 (15) 6.0 μg/m3 (25) 38.0
 
April 1, 2020, 6 p.m. N/A N/A 1.9 ppb (2) N/A N/A 1.0 ppb (1) 51.0 ppb (39) 0.24 ppb (3) 14.0 μg/m3 (13) 8.0 μg/m3 (33) 39.0