ID: 1057

AQSQID: 400019009

Site Name: Stilwell Castnet & Ncore

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

Updated: May 25, 2022, 6:37 a.m.

Location: Stilwell (D0869 Rd), OK

Reporting: True, Located: True

Current AQI: 37.0

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 25, 2022, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.05 ppb (2) 1.0 μg/m3 (1) 0.0 μg/m3 (0) 37.0
 
May 25, 2022, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.07 ppb (2) -1.0 μg/m3 (0) -1.0 μg/m3 (0) 29.0
 
May 25, 2022, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.06 ppb (2) -1.0 μg/m3 (0) 1.0 μg/m3 (5) 30.0
 
May 25, 2022, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.06 ppb (2) 0.0 μg/m3 (0) 0.0 μg/m3 (0) 31.0
 
May 25, 2022, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.06 ppb (2) 0.0 μg/m3 (0) 2.0 μg/m3 (9) 33.0
 
May 25, 2022, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.06 ppb (2) 2.0 μg/m3 (2) 1.0 μg/m3 (5) 35.0
 
May 24, 2022, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.06 ppb (2) 4.0 μg/m3 (4) 3.0 μg/m3 (13) 37.0
 
May 24, 2022, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.09 ppb (2) 4.0 μg/m3 (4) 7.0 μg/m3 (30) 30.0
 
May 24, 2022, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.1 ppb (2) 6.0 μg/m3 (6) 3.0 μg/m3 (13) 19.0
 
May 24, 2022, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (21) 0.1 ppb (2) 7.0 μg/m3 (7) 4.0 μg/m3 (17) 21.0
 
May 24, 2022, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (21) 0.09 ppb (2) 5.0 μg/m3 (5) 3.0 μg/m3 (13) 21.0
 
May 24, 2022, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.09 ppb (2) 4.0 μg/m3 (4) 6.0 μg/m3 (25) 25.0
 
May 24, 2022, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.09 ppb (2) 5.0 μg/m3 (5) 7.0 μg/m3 (30) 30.0
 
May 24, 2022, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.09 ppb (2) 5.0 μg/m3 (5) 5.0 μg/m3 (21) 27.0
 
May 24, 2022, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.08 ppb (2) 5.0 μg/m3 (5) 5.0 μg/m3 (21) 27.0
 
May 24, 2022, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.07 ppb (2) 3.0 μg/m3 (3) 3.0 μg/m3 (13) 29.0
 
May 24, 2022, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.07 ppb (2) 7.0 μg/m3 (7) 5.0 μg/m3 (21) 30.0
 
May 24, 2022, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.03 ppb (0) 12.0 μg/m3 (12) 6.0 μg/m3 (25) 34.0
 
May 24, 2022, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.09 ppb (2) 12.0 μg/m3 (12) 9.0 μg/m3 (38) 38.0
 
May 24, 2022, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.09 ppb (2) 10.0 μg/m3 (10) 7.0 μg/m3 (30) 31.0
 
May 24, 2022, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.07 ppb (2) 7.0 μg/m3 (7) 8.0 μg/m3 (34) 34.0
 
May 24, 2022, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 27.0 ppb (25) 0.07 ppb (2) 9.0 μg/m3 (9) 7.0 μg/m3 (30) 30.0
 
May 24, 2022, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 27.0 ppb (25) 0.07 ppb (2) 9.0 μg/m3 (9) 7.0 μg/m3 (30) 30.0
 
May 24, 2022, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 26.0 ppb (25) 0.06 ppb (2) 10.0 μg/m3 (10) 3.0 μg/m3 (13) 25.0
 
May 24, 2022, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 26.0 ppb (25) 0.06 ppb (2) 10.0 μg/m3 (10) 3.0 μg/m3 (13) 25.0
 
May 24, 2022, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 24.0 ppb (23) 0.06 ppb (2) 4.0 μg/m3 (4) 3.0 μg/m3 (13) 23.0
 
May 24, 2022, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 24.0 ppb (23) 0.06 ppb (2) 4.0 μg/m3 (4) 3.0 μg/m3 (13) 23.0
 
May 24, 2022, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.07 ppb (2) 4.0 μg/m3 (4) 3.0 μg/m3 (13) 22.0
 
May 24, 2022, 2 a.m. N/A 0.1 ppb (1) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.07 ppb (2) 4.0 μg/m3 (4) 3.0 μg/m3 (13) 22.0
 
May 24, 2022, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 27.0 ppb (25) 0.05 ppb (2) 4.0 μg/m3 (4) 5.0 μg/m3 (21) 25.0
 
May 24, 2022, 1 a.m. N/A 0.1 ppb (1) 1.7 ppb (2) N/A N/A 1.0 ppb (2) 27.0 ppb (25) 0.05 ppb (2) 4.0 μg/m3 (4) 5.0 μg/m3 (21) 25.0
 
May 24, 2022, midnight N/A N/A N/A N/A N/A 1.0 ppb (2) 30.0 ppb (28) 0.07 ppb (2) 5.0 μg/m3 (5) 5.0 μg/m3 (21) 28.0
 
May 24, 2022, midnight N/A N/A N/A N/A N/A 1.0 ppb (2) 30.0 ppb (28) 0.07 ppb (2) 5.0 μg/m3 (5) 5.0 μg/m3 (21) 28.0
 
May 23, 2022, 11 p.m. N/A 0.1 ppb (1) 1.7 ppb (2) N/A N/A 1.0 ppb (2) 31.0 ppb (29) 0.06 ppb (2) 3.0 μg/m3 (3) 0.0 μg/m3 (0) 29.0
 
May 23, 2022, 11 p.m. N/A 0.1 ppb (1) 1.7 ppb (2) N/A N/A 1.0 ppb (2) 31.0 ppb (29) 0.06 ppb (2) 3.0 μg/m3 (3) 0.0 μg/m3 (0) 29.0
 
May 23, 2022, 8 p.m. N/A 0.1 ppb (1) 1.7 ppb (2) N/A N/A 1.0 ppb (2) 28.0 ppb (26) 0.07 ppb (2) 3.0 μg/m3 (3) 0.0 μg/m3 (0) 26.0
 
May 23, 2022, 7 p.m. N/A 0.1 ppb (1) 1.7 ppb (2) N/A N/A 1.0 ppb (2) 25.0 ppb (24) 0.07 ppb (2) 4.0 μg/m3 (4) 1.0 μg/m3 (5) 24.0
 
May 23, 2022, 6 p.m. N/A 0.1 ppb (1) 1.7 ppb (2) N/A N/A 1.0 ppb (2) 22.0 ppb (21) 0.07 ppb (2) 3.0 μg/m3 (3) 2.0 μg/m3 (9) 21.0
 
May 23, 2022, 3 p.m. N/A 0.1 ppb (1) 1.8 ppb (2) N/A N/A 1.0 ppb (2) 29.0 ppb (27) 0.06 ppb (2) 11.0 μg/m3 (11) 2.0 μg/m3 (9) 27.0
 
May 23, 2022, 2 p.m. N/A 0.1 ppb (1) 1.7 ppb (2) N/A N/A 1.0 ppb (2) 23.0 ppb (22) 0.07 ppb (2) 10.0 μg/m3 (10) 3.0 μg/m3 (13) 22.0
 
May 23, 2022, 11 a.m. N/A 0.1 ppb (1) 1.3 ppb (2) N/A N/A 1.0 ppb (2) 21.0 ppb (20) 0.04 ppb (0) 8.0 μg/m3 (8) 3.0 μg/m3 (13) 20.0
 
May 23, 2022, 10 a.m. N/A 0.1 ppb (1) 1.2 ppb (2) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.07 ppb (2) 10.0 μg/m3 (10) 2.0 μg/m3 (9) 19.0
 
May 23, 2022, 10 a.m. N/A 0.1 ppb (1) 1.2 ppb (2) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.07 ppb (2) 10.0 μg/m3 (10) 2.0 μg/m3 (9) 19.0
 
May 23, 2022, 9 a.m. N/A 0.1 ppb (1) 1.0 ppb (1) N/A N/A 1.0 ppb (2) 20.0 ppb (19) 0.07 ppb (2) 9.0 μg/m3 (9) 4.0 μg/m3 (17) 19.0
 
May 23, 2022, 3 a.m. N/A 0.1 ppb (1) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.06 ppb (2) 13.0 μg/m3 (13) 1.0 μg/m3 (5) 22.0
 
May 23, 2022, 2 a.m. N/A 0.1 ppb (1) 1.7 ppb (2) N/A N/A 1.0 ppb (2) 25.0 ppb (24) 0.06 ppb (2) 7.0 μg/m3 (7) 2.0 μg/m3 (9) 24.0
 
May 23, 2022, 1 a.m. N/A 0.1 ppb (1) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.06 ppb (2) 10.0 μg/m3 (10) 2.0 μg/m3 (9) 26.0
 
May 23, 2022, midnight N/A 0.1 ppb (1) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.05 ppb (2) 11.0 μg/m3 (11) 2.0 μg/m3 (9) 27.0
 
May 22, 2022, 11 p.m. N/A 0.1 ppb (1) 1.8 ppb (2) N/A N/A 1.0 ppb (2) 30.0 ppb (28) 0.05 ppb (2) 10.0 μg/m3 (10) 1.0 μg/m3 (5) 28.0
 
May 22, 2022, 9 p.m. N/A 0.1 ppb (1) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.05 ppb (2) 13.0 μg/m3 (13) 3.0 μg/m3 (13) 30.0
 
May 22, 2022, 8 p.m. N/A 0.2 ppb (1) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.05 ppb (2) 12.0 μg/m3 (12) 3.0 μg/m3 (13) 30.0
 
May 22, 2022, 7 p.m. N/A 0.2 ppb (1) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.06 ppb (2) 11.0 μg/m3 (11) 3.0 μg/m3 (13) 27.0
 
May 22, 2022, 6 p.m. N/A 0.1 ppb (1) 1.6 ppb (2) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.06 ppb (2) 13.0 μg/m3 (13) 1.0 μg/m3 (5) 28.0
 
May 22, 2022, 5 p.m. N/A 0.1 ppb (1) 1.6 ppb (2) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.04 ppb (0) 18.0 μg/m3 (17) 0.0 μg/m3 (0) 27.0
 
May 22, 2022, 4 p.m. N/A 0.1 ppb (1) 1.6 ppb (2) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.04 ppb (0) 18.0 μg/m3 (17) 2.0 μg/m3 (9) 27.0
 
May 22, 2022, 3 p.m. N/A 0.1 ppb (1) 1.5 ppb (2) N/A N/A 1.0 ppb (2) 26.0 ppb (25) 0.04 ppb (0) 13.0 μg/m3 (13) 4.0 μg/m3 (17) 25.0
 
May 22, 2022, 2 p.m. N/A 0.1 ppb (1) 1.4 ppb (2) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.04 ppb (0) 15.0 μg/m3 (14) 2.0 μg/m3 (9) 24.0
 
May 22, 2022, 1 p.m. N/A 0.1 ppb (1) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.04 ppb (0) 11.0 μg/m3 (11) -2.0 μg/m3 (0) 24.0
 
May 22, 2022, 1 p.m. N/A 0.1 ppb (1) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.04 ppb (0) 11.0 μg/m3 (11) -2.0 μg/m3 (0) 24.0
 
May 22, 2022, noon N/A 0.1 ppb (1) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.03 ppb (0) 12.0 μg/m3 (12) -3.0 μg/m3 (0) 22.0
 
May 22, 2022, 11 a.m. N/A 0.1 ppb (1) 1.3 ppb (2) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.03 ppb (0) 15.0 μg/m3 (14) 1.0 μg/m3 (5) 23.0
 
May 22, 2022, 10 a.m. N/A 0.1 ppb (1) 1.2 ppb (2) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.08 ppb (2) 9.0 μg/m3 (9) 3.0 μg/m3 (13) 23.0
 
May 22, 2022, 9 a.m. N/A 0.1 ppb (1) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.08 ppb (2) 10.0 μg/m3 (10) 3.0 μg/m3 (13) 23.0
 
May 22, 2022, 8 a.m. N/A 0.1 ppb (1) 2.5 ppb (3) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.08 ppb (2) 13.0 μg/m3 (13) 2.0 μg/m3 (9) 19.0
 
May 22, 2022, 7 a.m. N/A 0.1 ppb (1) 2.5 ppb (3) N/A N/A 0.0 ppb (0) 17.0 ppb (16) 0.05 ppb (2) 8.0 μg/m3 (8) 3.0 μg/m3 (13) 16.0
 
May 22, 2022, 5 a.m. N/A 0.1 ppb (1) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 21.0 ppb (20) 0.04 ppb (0) 9.0 μg/m3 (9) 2.0 μg/m3 (9) 20.0
 
May 22, 2022, 3 a.m. N/A 0.1 ppb (1) 1.9 ppb (2) N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.04 ppb (0) 11.0 μg/m3 (11) 2.0 μg/m3 (9) 22.0
 
May 22, 2022, 2 a.m. N/A 0.1 ppb (1) 2.0 ppb (2) N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.05 ppb (2) 12.0 μg/m3 (12) 2.0 μg/m3 (9) 22.0
 
May 22, 2022, 1 a.m. N/A 0.1 ppb (1) 1.8 ppb (2) N/A N/A 0.0 ppb (0) 22.0 ppb (21) 0.04 ppb (0) 2.0 μg/m3 (2) 1.0 μg/m3 (5) 21.0
 
May 22, 2022, midnight N/A 0.2 ppb (1) 1.8 ppb (2) N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.03 ppb (0) 0.0 μg/m3 (0) 1.0 μg/m3 (5) 22.0
 
May 21, 2022, 11 p.m. N/A 0.2 ppb (1) 1.9 ppb (2) N/A N/A 0.0 ppb (0) 21.0 ppb (20) 0.04 ppb (0) 1.0 μg/m3 (1) 1.0 μg/m3 (5) 20.0
 
May 21, 2022, 10 p.m. N/A 0.2 ppb (1) 2.0 ppb (2) N/A N/A 0.0 ppb (0) 22.0 ppb (21) 0.05 ppb (2) 3.0 μg/m3 (3) 1.0 μg/m3 (5) 21.0
 
May 21, 2022, 9 p.m. N/A 0.2 ppb (1) 2.1 ppb (2) N/A N/A 0.0 ppb (0) 22.0 ppb (21) 0.0 ppb (0) 4.0 μg/m3 (4) 1.0 μg/m3 (5) 21.0
 
May 21, 2022, 8 p.m. N/A 0.2 ppb (1) 2.3 ppb (3) N/A N/A 0.0 ppb (0) 21.0 ppb (20) 0.04 ppb (0) 1.0 μg/m3 (1) 0.0 μg/m3 (0) 20.0
 
May 21, 2022, 7 p.m. N/A 0.2 ppb (1) 2.5 ppb (3) N/A N/A 0.0 ppb (0) 22.0 ppb (21) 0.05 ppb (2) 1.0 μg/m3 (1) -1.0 μg/m3 (0) 21.0
 
May 21, 2022, 6 p.m. N/A 0.2 ppb (1) 2.5 ppb (3) N/A N/A 0.0 ppb (0) 22.0 ppb (21) 0.06 ppb (2) 4.0 μg/m3 (4) 2.0 μg/m3 (9) 21.0
 
May 21, 2022, 5 p.m. N/A 0.1 ppb (1) 2.6 ppb (3) N/A N/A 0.0 ppb (0) 21.0 ppb (20) 0.06 ppb (2) 3.0 μg/m3 (3) 5.0 μg/m3 (21) 21.0
 
May 21, 2022, 4 p.m. N/A 0.1 ppb (1) 2.6 ppb (3) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.08 ppb (2) 6.0 μg/m3 (6) 5.0 μg/m3 (21) 25.0
 
May 21, 2022, 3 p.m. N/A 0.1 ppb (1) 2.5 ppb (3) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.07 ppb (2) 7.0 μg/m3 (7) 1.0 μg/m3 (5) 32.0
 
May 21, 2022, 2 p.m. N/A 0.1 ppb (1) 2.6 ppb (3) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.07 ppb (2) 1.0 μg/m3 (1) 1.0 μg/m3 (5) 31.0
 
May 21, 2022, 1 p.m. N/A 0.1 ppb (1) 2.7 ppb (3) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.05 ppb (2) 2.0 μg/m3 (2) 1.0 μg/m3 (5) 27.0
 
May 21, 2022, 1 p.m. N/A 0.1 ppb (1) 2.7 ppb (3) N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.05 ppb (2) 2.0 μg/m3 (2) 1.0 μg/m3 (5) 27.0
 
May 21, 2022, noon N/A 0.1 ppb (1) 2.9 ppb (3) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.05 ppb (2) 6.0 μg/m3 (6) 4.0 μg/m3 (17) 29.0
 
May 21, 2022, 10 a.m. N/A 0.1 ppb (1) 4.5 ppb (5) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.1 ppb (2) 29.0 μg/m3 (27) 17.0 μg/m3 (62) 62.0
 
May 21, 2022, 9 a.m. N/A 0.1 ppb (1) 4.5 ppb (5) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.19 ppb (3) 35.0 μg/m3 (33) 25.0 μg/m3 (79) 79.0
 
May 21, 2022, 8 a.m. N/A 0.1 ppb (1) 5.0 ppb (5) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.19 ppb (3) 34.0 μg/m3 (32) 27.0 μg/m3 (83) 83.0
 
May 21, 2022, 4 a.m. N/A 0.1 ppb (1) 4.9 ppb (5) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.18 ppb (3) 45.0 μg/m3 (42) 35.0 μg/m3 (100) 100.0
 
May 21, 2022, 3 a.m. N/A 0.1 ppb (1) 4.7 ppb (5) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.18 ppb (3) 49.0 μg/m3 (46) 38.0 μg/m3 (108) 108.0
 
May 21, 2022, 2 a.m. N/A 0.1 ppb (1) 4.4 ppb (5) N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.18 ppb (3) 53.0 μg/m3 (50) 36.0 μg/m3 (103) 103.0
 
May 21, 2022, 1 a.m. N/A 0.1 ppb (1) 4.2 ppb (4) N/A N/A 0.0 ppb (0) 45.0 ppb (42) 0.16 ppb (3) 49.0 μg/m3 (46) 37.0 μg/m3 (105) 105.0
 
May 21, 2022, midnight N/A 0.1 ppb (1) 3.9 ppb (4) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.15 ppb (2) 43.0 μg/m3 (40) 29.0 μg/m3 (87) 87.0
 
May 20, 2022, 11 p.m. N/A 0.1 ppb (1) 3.8 ppb (4) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.15 ppb (2) 43.0 μg/m3 (40) 31.0 μg/m3 (91) 91.0
 
May 20, 2022, 10 p.m. N/A 0.1 ppb (1) 3.5 ppb (4) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.15 ppb (2) 38.0 μg/m3 (36) 26.0 μg/m3 (81) 81.0
 
May 20, 2022, 9 p.m. N/A 0.1 ppb (1) 3.3 ppb (4) N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.17 ppb (3) 36.0 μg/m3 (34) 21.0 μg/m3 (70) 70.0
 
May 20, 2022, 7 p.m. N/A 0.1 ppb (1) 3.0 ppb (3) N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.22 ppb (3) 29.0 μg/m3 (27) 18.0 μg/m3 (64) 64.0
 
May 20, 2022, 6 p.m. N/A 0.1 ppb (1) 3.0 ppb (3) N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.18 ppb (3) 38.0 μg/m3 (36) 17.0 μg/m3 (62) 62.0
 
May 20, 2022, 5 p.m. N/A 0.1 ppb (1) 3.0 ppb (3) N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.13 ppb (2) 30.0 μg/m3 (28) 13.0 μg/m3 (53) 53.0
 
May 20, 2022, 4 p.m. N/A 0.1 ppb (1) 3.1 ppb (3) N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.09 ppb (2) 25.0 μg/m3 (24) 21.0 μg/m3 (70) 70.0
 
May 20, 2022, 3 p.m. N/A 0.1 ppb (1) 3.2 ppb (4) N/A N/A 0.0 ppb (0) 41.0 ppb (38) 0.1 ppb (2) 32.0 μg/m3 (30) 15.0 μg/m3 (58) 58.0
 
May 20, 2022, 2 p.m. N/A 0.1 ppb (1) 3.3 ppb (4) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.1 ppb (2) 28.0 μg/m3 (26) 17.0 μg/m3 (62) 62.0
 
May 20, 2022, 1 p.m. N/A 0.1 ppb (1) 3.2 ppb (4) N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.11 ppb (2) 29.0 μg/m3 (27) 16.0 μg/m3 (60) 60.0
 
May 20, 2022, 11 a.m. N/A 0.1 ppb (1) 3.0 ppb (3) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.07 ppb (2) 21.0 μg/m3 (20) 14.0 μg/m3 (55) 55.0
 
May 20, 2022, 10 a.m. N/A 0.1 ppb (1) 2.9 ppb (3) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.05 ppb (2) 20.0 μg/m3 (19) 10.0 μg/m3 (42) 42.0
 
May 20, 2022, 9 a.m. N/A 0.1 ppb (1) 2.7 ppb (3) N/A N/A N/A 46.0 ppb (43) N/A 24.0 μg/m3 (23) 9.0 μg/m3 (38) 43.0
 
May 20, 2022, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 51.0 ppb (48) 0.13 ppb (2) 22.0 μg/m3 (21) 10.0 μg/m3 (42) 48.0
 
May 20, 2022, 7 a.m. N/A 0.1 ppb (1) 3.0 ppb (3) N/A N/A 0.0 ppb (0) 55.0 ppb (51) 0.1 ppb (2) 18.0 μg/m3 (17) 10.0 μg/m3 (42) 51.0
 
May 20, 2022, 6 a.m. N/A 0.1 ppb (1) 2.9 ppb (3) N/A N/A 0.0 ppb (0) 53.0 ppb (50) 0.11 ppb (2) 23.0 μg/m3 (22) 11.0 μg/m3 (46) 50.0
 
May 20, 2022, 5 a.m. N/A 0.1 ppb (1) 2.8 ppb (3) N/A N/A 0.0 ppb (0) 49.0 ppb (46) 0.09 ppb (2) 20.0 μg/m3 (19) 6.0 μg/m3 (25) 46.0
 
May 20, 2022, 4 a.m. N/A 0.1 ppb (1) 2.8 ppb (3) N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.09 ppb (2) 20.0 μg/m3 (19) 8.0 μg/m3 (34) 40.0
 
May 20, 2022, 3 a.m. N/A 0.1 ppb (1) 2.8 ppb (3) N/A N/A 0.0 ppb (0) 41.0 ppb (38) 0.08 ppb (2) 16.0 μg/m3 (15) 8.0 μg/m3 (34) 38.0
 
May 20, 2022, 2 a.m. N/A 0.1 ppb (1) 3.0 ppb (3) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.08 ppb (2) 20.0 μg/m3 (19) 8.0 μg/m3 (34) 39.0
 
May 20, 2022, 1 a.m. N/A 0.1 ppb (1) 3.1 ppb (3) N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.09 ppb (2) 17.0 μg/m3 (16) 7.0 μg/m3 (30) 40.0
 
May 20, 2022, 1 a.m. N/A 0.1 ppb (1) 3.1 ppb (3) N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.09 ppb (2) 17.0 μg/m3 (16) 7.0 μg/m3 (30) 40.0
 
May 20, 2022, midnight N/A 0.1 ppb (1) 3.2 ppb (4) N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.09 ppb (2) 27.0 μg/m3 (25) 11.0 μg/m3 (46) 46.0
 
May 20, 2022, midnight N/A 0.1 ppb (1) 3.2 ppb (4) N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.09 ppb (2) 27.0 μg/m3 (25) 11.0 μg/m3 (46) 46.0
 
May 19, 2022, 11 p.m. N/A 0.1 ppb (1) 3.1 ppb (3) N/A N/A 0.0 ppb (0) 45.0 ppb (42) 0.09 ppb (2) 30.0 μg/m3 (28) 20.0 μg/m3 (68) 68.0
 
May 19, 2022, 10 p.m. N/A 0.1 ppb (1) 3.2 ppb (4) N/A N/A 0.0 ppb (0) 46.0 ppb (43) 0.09 ppb (2) 24.0 μg/m3 (23) 8.0 μg/m3 (34) 43.0
 
May 19, 2022, 9 p.m. N/A 0.1 ppb (1) 3.2 ppb (4) N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.09 ppb (2) 27.0 μg/m3 (25) 12.0 μg/m3 (50) 50.0
 
May 19, 2022, 8 p.m. N/A 0.1 ppb (1) 3.2 ppb (4) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.09 ppb (2) 26.0 μg/m3 (25) 14.0 μg/m3 (55) 55.0
 
May 19, 2022, 7 p.m. N/A 0.2 ppb (1) 3.2 ppb (4) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.1 ppb (2) 24.0 μg/m3 (23) 7.0 μg/m3 (30) 37.0
 
May 19, 2022, 7 p.m. N/A 0.2 ppb (1) 3.2 ppb (4) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.1 ppb (2) 24.0 μg/m3 (23) 7.0 μg/m3 (30) 37.0
 
May 19, 2022, 4 p.m. N/A 0.2 ppb (1) 3.6 ppb (4) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.09 ppb (2) 36.0 μg/m3 (34) 9.0 μg/m3 (38) 38.0
 
May 19, 2022, 2 p.m. N/A 0.1 ppb (1) 3.5 ppb (4) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.12 ppb (2) 22.0 μg/m3 (21) 10.0 μg/m3 (42) 42.0
 
May 19, 2022, 6 a.m. N/A 0.1 ppb (1) 3.3 ppb (4) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.1 ppb (2) 16.0 μg/m3 (15) 11.0 μg/m3 (46) 46.0
 
May 19, 2022, 5 a.m. N/A 0.1 ppb (1) 3.3 ppb (4) N/A N/A 0.0 ppb (0) 13.0 ppb (13) 0.11 ppb (2) 12.0 μg/m3 (12) 8.0 μg/m3 (34) 34.0
 
May 19, 2022, 4 a.m. N/A 0.1 ppb (1) 3.3 ppb (4) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.12 ppb (2) 11.0 μg/m3 (11) 9.0 μg/m3 (38) 38.0
 
May 19, 2022, 3 a.m. N/A 0.1 ppb (1) 3.3 ppb (4) N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.14 ppb (2) 18.0 μg/m3 (17) 13.0 μg/m3 (53) 53.0
 
May 19, 2022, 2 a.m. N/A 0.1 ppb (1) 3.3 ppb (4) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.12 ppb (2) 13.0 μg/m3 (13) 9.0 μg/m3 (38) 38.0
 
May 19, 2022, 1 a.m. N/A 0.1 ppb (1) 3.2 ppb (4) N/A N/A 0.0 ppb (0) 22.0 ppb (21) 0.11 ppb (2) 15.0 μg/m3 (14) 10.0 μg/m3 (42) 42.0
 
May 18, 2022, 11 p.m. N/A 0.1 ppb (1) 3.1 ppb (3) N/A N/A 0.0 ppb (0) 41.0 ppb (38) 0.11 ppb (2) 20.0 μg/m3 (19) 10.0 μg/m3 (42) 42.0
 
May 18, 2022, 10 p.m. N/A 0.1 ppb (1) 3.0 ppb (3) N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.12 ppb (2) 18.0 μg/m3 (17) 7.0 μg/m3 (30) 40.0
 
May 18, 2022, 9 p.m. N/A 0.2 ppb (1) 2.8 ppb (3) N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.12 ppb (2) 23.0 μg/m3 (22) 10.0 μg/m3 (42) 42.0
 
May 18, 2022, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (38) 0.15 ppb (2) 22.0 μg/m3 (21) 9.0 μg/m3 (38) 38.0
 
May 18, 2022, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.18 ppb (3) 23.0 μg/m3 (22) 13.0 μg/m3 (53) 53.0
 
May 18, 2022, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (38) 0.17 ppb (3) 22.0 μg/m3 (21) 13.0 μg/m3 (53) 53.0
 
May 18, 2022, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.14 ppb (2) 14.0 μg/m3 (13) 7.0 μg/m3 (30) 35.0
 
May 18, 2022, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.14 ppb (2) 14.0 μg/m3 (13) 7.0 μg/m3 (30) 35.0
 
May 18, 2022, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.14 ppb (2) 26.0 μg/m3 (25) 11.0 μg/m3 (46) 46.0
 
May 18, 2022, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.14 ppb (2) 26.0 μg/m3 (25) 11.0 μg/m3 (46) 46.0
 
May 18, 2022, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.17 ppb (3) 22.0 μg/m3 (21) 13.0 μg/m3 (53) 53.0
 
May 18, 2022, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.17 ppb (3) 22.0 μg/m3 (21) 13.0 μg/m3 (53) 53.0
 
May 18, 2022, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.16 ppb (3) 19.0 μg/m3 (18) 13.0 μg/m3 (53) 53.0
 
May 18, 2022, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.16 ppb (3) 19.0 μg/m3 (18) 13.0 μg/m3 (53) 53.0
 
May 18, 2022, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.12 ppb (2) 21.0 μg/m3 (20) 12.0 μg/m3 (50) 50.0
 
May 18, 2022, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.12 ppb (2) 21.0 μg/m3 (20) 12.0 μg/m3 (50) 50.0
 
May 18, 2022, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.12 ppb (2) 23.0 μg/m3 (22) 9.0 μg/m3 (38) 38.0
 
May 18, 2022, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.09 ppb (2) 18.0 μg/m3 (17) 11.0 μg/m3 (46) 46.0
 
May 18, 2022, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.11 ppb (2) 15.0 μg/m3 (14) 11.0 μg/m3 (46) 46.0
 
May 18, 2022, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 39.0 ppb (37) 0.11 ppb (2) 14.0 μg/m3 (13) 8.0 μg/m3 (34) 37.0
 
May 18, 2022, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.12 ppb (2) 23.0 μg/m3 (22) 9.0 μg/m3 (38) 38.0
 
May 17, 2022, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (38) 0.11 ppb (2) 15.0 μg/m3 (14) 11.0 μg/m3 (46) 46.0
 
May 17, 2022, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 39.0 ppb (37) 0.12 ppb (2) 15.0 μg/m3 (14) 10.0 μg/m3 (42) 42.0
 
May 17, 2022, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (38) 0.11 ppb (2) 12.0 μg/m3 (12) 7.0 μg/m3 (30) 38.0
 
May 17, 2022, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (38) 0.11 ppb (2) 12.0 μg/m3 (12) 7.0 μg/m3 (30) 38.0
 
May 17, 2022, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 44.0 ppb (41) 0.11 ppb (2) 11.0 μg/m3 (11) 10.0 μg/m3 (42) 42.0
 
May 17, 2022, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 43.0 ppb (40) 0.11 ppb (2) 14.0 μg/m3 (13) 8.0 μg/m3 (34) 40.0
 
May 17, 2022, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 43.0 ppb (40) 0.11 ppb (2) 14.0 μg/m3 (13) 8.0 μg/m3 (34) 40.0
 
May 17, 2022, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 42.0 ppb (39) 0.14 ppb (2) 16.0 μg/m3 (15) 7.0 μg/m3 (30) 39.0
 
May 17, 2022, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 42.0 ppb (39) 0.14 ppb (2) 16.0 μg/m3 (15) 7.0 μg/m3 (30) 39.0
 
May 17, 2022, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 45.0 ppb (42) 0.13 ppb (2) 9.0 μg/m3 (9) 6.0 μg/m3 (25) 42.0
 
May 17, 2022, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 45.0 ppb (42) 0.13 ppb (2) 9.0 μg/m3 (9) 6.0 μg/m3 (25) 42.0
 
May 17, 2022, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 40.0 ppb (38) 0.12 ppb (2) 15.0 μg/m3 (14) 6.0 μg/m3 (25) 38.0
 
May 17, 2022, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 40.0 ppb (38) 0.12 ppb (2) 15.0 μg/m3 (14) 6.0 μg/m3 (25) 38.0
 
May 17, 2022, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 39.0 ppb (37) 0.11 ppb (2) 10.0 μg/m3 (10) 8.0 μg/m3 (34) 37.0
 
May 17, 2022, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 39.0 ppb (37) 0.11 ppb (2) 10.0 μg/m3 (10) 8.0 μg/m3 (34) 37.0
 
May 17, 2022, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 39.0 ppb (37) 0.17 ppb (3) 12.0 μg/m3 (12) 9.0 μg/m3 (38) 38.0
 
May 17, 2022, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.09 ppb (2) 11.0 μg/m3 (11) 6.0 μg/m3 (25) 31.0
 
May 17, 2022, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.09 ppb (2) 11.0 μg/m3 (11) 6.0 μg/m3 (25) 31.0