ID: 1271

AQSQID: 530630001

Site Name: Cheney-Turnbull (So)

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

Updated: Sept. 26, 2020, 12:41 a.m.

Location: Cheney (99004), WA

Reporting: True, Located: True

Current AQI: 23.0

Cheney (99004) WA, US: 47.416401, -117.5298

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 25, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 10.0 μg/m3 (9) N/A 23.0
 
Sept. 25, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 8.0 μg/m3 (7) N/A 24.0
 
Sept. 25, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 7.0 μg/m3 (6) N/A 22.0
 
Sept. 25, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 8.0 μg/m3 (7) N/A 21.0
 
Sept. 25, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 8.0 μg/m3 (7) N/A 20.0
 
Sept. 25, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 8.0 μg/m3 (7) N/A 17.0
 
Sept. 25, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 7.0 μg/m3 (6) N/A 14.0
 
Sept. 25, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 6.0 μg/m3 (5) N/A 14.0
 
Sept. 25, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 7.0 μg/m3 (6) N/A 16.0
 
Sept. 25, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 6.0 μg/m3 (5) N/A 13.0
 
Sept. 25, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 8.0 μg/m3 (7) N/A 14.0
 
Sept. 25, 2020, noon N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A 7.0 μg/m3 (6) N/A 7.0
 
Sept. 25, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (5) N/A 9.0 μg/m3 (8) N/A 8.0
 
Sept. 25, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A 8.0 μg/m3 (7) N/A 7.0
 
Sept. 25, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) N/A 13.0 μg/m3 (12) N/A 12.0
 
Sept. 25, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (5) N/A 17.0 μg/m3 (15) N/A 15.0
 
Sept. 25, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A 23.0 μg/m3 (21) N/A 21.0
 
Sept. 25, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A 20.0 μg/m3 (18) N/A 18.0
 
Sept. 25, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A 19.0 μg/m3 (17) N/A 17.0
 
Sept. 25, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 21.0 μg/m3 (19) N/A 19.0
 
Sept. 25, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 25.0 μg/m3 (23) N/A 23.0
 
Sept. 25, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 36.0 μg/m3 (33) N/A 33.0
 
Sept. 25, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 63.0 μg/m3 (54) N/A 54.0
 
Sept. 25, 2020, midnight N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 58.0 μg/m3 (52) N/A 52.0
 
Sept. 24, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 47.0 μg/m3 (43) N/A 43.0
 
Sept. 24, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 26.0 μg/m3 (24) N/A 29.0
 
Sept. 24, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 27.0 μg/m3 (25) N/A 29.0
 
Sept. 24, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 23.0 μg/m3 (21) N/A 28.0
 
Sept. 24, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) N/A 17.0
 
Sept. 24, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) N/A 11.0
 
Sept. 24, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 15.0 μg/m3 (14) N/A 23.0
 
Sept. 24, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 7.0 μg/m3 (6) N/A 22.0
 
Sept. 24, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 9.0 μg/m3 (8) N/A 18.0
 
Sept. 24, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 6.0 μg/m3 (5) N/A 18.0
 
Sept. 24, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 6.0 μg/m3 (5) N/A 17.0
 
Sept. 24, 2020, noon N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 7.0 μg/m3 (6) N/A 19.0
 
Sept. 24, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 9.0 μg/m3 (8) N/A 22.0
 
Sept. 24, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) N/A 7.0
 
Sept. 24, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 11.0 μg/m3 (10) N/A 24.0
 
Sept. 24, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 5.0 μg/m3 (5) N/A 22.0
 
Sept. 24, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 17.0 μg/m3 (15) N/A 17.0
 
Sept. 24, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 16.0 μg/m3 (15) N/A 18.0
 
Sept. 24, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 32.0 μg/m3 (29) N/A 29.0
 
Sept. 24, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 56.0 μg/m3 (50) N/A 50.0
 
Sept. 24, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 57.0 μg/m3 (51) N/A 51.0
 
Sept. 24, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 56.0 μg/m3 (50) N/A 50.0
 
Sept. 24, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 46.0 μg/m3 (42) N/A 42.0
 
Sept. 24, 2020, midnight N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 29.0 μg/m3 (26) N/A 32.0
 
Sept. 23, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 34.0 μg/m3 (31) N/A 32.0
 
Sept. 23, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 38.0 μg/m3 (35) N/A 35.0
 
Sept. 23, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 37.0 μg/m3 (34) N/A 34.0
 
Sept. 23, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 27.0 μg/m3 (25) N/A 30.0
 
Sept. 23, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 32.0 μg/m3 (29) N/A 29.0
 
Sept. 23, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 19.0 μg/m3 (17) N/A 28.0
 
Sept. 23, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 22.0 μg/m3 (20) N/A 25.0
 
Sept. 23, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 21.0 μg/m3 (19) N/A 23.0
 
Sept. 23, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 23.0 μg/m3 (21) N/A 21.0
 
Sept. 23, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 63.0 μg/m3 (54) N/A 54.0
 
Sept. 23, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 24.0 μg/m3 (22) N/A 22.0
 
Sept. 23, 2020, noon N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 26.0 μg/m3 (24) N/A 24.0
 
Sept. 23, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 25.0 μg/m3 (23) N/A 23.0
 
Sept. 23, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (5) N/A 30.0 μg/m3 (27) N/A 27.0
 
Sept. 23, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (5) N/A 31.0 μg/m3 (28) N/A 28.0
 
Sept. 23, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A 35.0 μg/m3 (32) N/A 32.0
 
Sept. 23, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A 32.0 μg/m3 (29) N/A 29.0
 
Sept. 23, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A 32.0 μg/m3 (29) N/A 29.0
 
Sept. 23, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 37.0 μg/m3 (34) N/A 34.0
 
Sept. 23, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 33.0 μg/m3 (30) N/A 30.0
 
Sept. 23, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 29.0 μg/m3 (26) N/A 26.0
 
Sept. 23, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 20.0 μg/m3 (18) N/A 24.0
 
Sept. 23, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 22.0 μg/m3 (20) N/A 30.0
 
Sept. 23, 2020, midnight N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 19.0 μg/m3 (17) N/A 32.0
 
Sept. 22, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 21.0 μg/m3 (19) N/A 32.0
 
Sept. 22, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 23.0 μg/m3 (21) N/A 32.0
 
Sept. 22, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 33.0 μg/m3 (30) N/A 30.0
 
Sept. 22, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 23.0 μg/m3 (21) N/A 30.0
 
Sept. 22, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 25.0 μg/m3 (23) N/A 28.0
 
Sept. 22, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 27.0 μg/m3 (25) N/A 26.0
 
Sept. 22, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 25.0 μg/m3 (23) N/A 25.0
 
Sept. 22, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 26.0 μg/m3 (24) N/A 24.0
 
Sept. 22, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A 56.0 μg/m3 (50) N/A 50.0
 
Sept. 22, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) N/A 55.0 μg/m3 (50) N/A 50.0
 
Sept. 22, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) N/A 30.0 μg/m3 (27) N/A 27.0
 
Sept. 22, 2020, noon N/A N/A N/A N/A N/A N/A 3.0 ppb (2) N/A 13.0 μg/m3 (12) N/A 12.0
 
Sept. 22, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) N/A 15.0 μg/m3 (14) N/A 14.0
 
Sept. 22, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) N/A 14.0
 
Sept. 22, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A 16.0 μg/m3 (15) N/A 15.0
 
Sept. 22, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A 18.0 μg/m3 (16) N/A 16.0
 
Sept. 22, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (5) N/A 16.0 μg/m3 (15) N/A 15.0
 
Sept. 22, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) N/A 21.0 μg/m3 (19) N/A 19.0
 
Sept. 22, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A 19.0 μg/m3 (17) N/A 17.0
 
Sept. 22, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 27.0 μg/m3 (25) N/A 25.0
 
Sept. 22, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 22.0 μg/m3 (20) N/A 20.0
 
Sept. 22, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 19.0 μg/m3 (17) N/A 22.0
 
Sept. 22, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 19.0 μg/m3 (17) N/A 27.0
 
Sept. 22, 2020, midnight N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 11.0 μg/m3 (10) N/A 35.0
 
Sept. 21, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 11.0 μg/m3 (10) N/A 34.0
 
Sept. 21, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 17.0 μg/m3 (15) N/A 34.0
 
Sept. 21, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 13.0 μg/m3 (12) N/A 33.0
 
Sept. 21, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 10.0 μg/m3 (9) N/A 32.0
 
Sept. 21, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 12.0 μg/m3 (11) N/A 29.0
 
Sept. 21, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 14.0 μg/m3 (13) N/A 23.0
 
Sept. 21, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 19.0 μg/m3 (17) N/A 17.0
 
Sept. 21, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A 13.0 μg/m3 (12) N/A 12.0
 
Sept. 21, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A 10.0 μg/m3 (9) N/A 9.0
 
Sept. 21, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 5.0 μg/m3 (5) N/A 5.0
 
Sept. 21, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 6.0 μg/m3 (5) N/A 5.0
 
Sept. 21, 2020, noon N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 9.0 μg/m3 (8) N/A 8.0
 
Sept. 21, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 6.0 μg/m3 (5) N/A 5.0
 
Sept. 21, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 6.0 μg/m3 (5) N/A 5.0
 
Sept. 21, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 6.0 μg/m3 (5) N/A 5.0
 
Sept. 21, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 8.0 μg/m3 (7) N/A 7.0
 
Sept. 21, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 9.0 μg/m3 (8) N/A 8.0
 
Sept. 21, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 6.0 μg/m3 (5) N/A 5.0
 
Sept. 21, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A 17.0 μg/m3 (15) N/A 15.0
 
Sept. 21, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 25.0 μg/m3 (23) N/A 23.0
 
Sept. 21, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 15.0 μg/m3 (14) N/A 14.0
 
Sept. 21, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 11.0 μg/m3 (10) N/A 16.0
 
Sept. 21, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 9.0 μg/m3 (8) N/A 26.0
 
Sept. 21, 2020, midnight N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 8.0 μg/m3 (7) N/A 28.0
 
Sept. 20, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 7.0 μg/m3 (6) N/A 28.0
 
Sept. 20, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 5.0 μg/m3 (5) N/A 28.0
 
Sept. 20, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 5.0 μg/m3 (5) N/A 28.0
 
Sept. 20, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 8.0 μg/m3 (7) N/A 28.0
 
Sept. 20, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 12.0 μg/m3 (11) N/A 27.0
 
Sept. 20, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 12.0 μg/m3 (11) N/A 25.0
 
Sept. 20, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 8.0 μg/m3 (7) N/A 23.0
 
Sept. 20, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 10.0 μg/m3 (9) N/A 20.0
 
Sept. 20, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 8.0 μg/m3 (7) N/A 14.0
 
Sept. 20, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A 6.0 μg/m3 (5) N/A 8.0
 
Sept. 20, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A 7.0 μg/m3 (6) N/A 8.0
 
Sept. 20, 2020, noon N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A 10.0 μg/m3 (9) N/A 9.0
 
Sept. 20, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A 8.0 μg/m3 (7) N/A 11.0
 
Sept. 20, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) N/A 14.0
 
Sept. 20, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 21.0 μg/m3 (19) N/A 19.0
 
Sept. 20, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 22.0 μg/m3 (20) N/A 20.0
 
Sept. 20, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 21.0 μg/m3 (19) N/A 19.0
 
Sept. 20, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 21.0 μg/m3 (19) N/A 20.0
 
Sept. 20, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 26.0 μg/m3 (24) N/A 24.0
 
Sept. 20, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 27.0 μg/m3 (25) N/A 25.0
 
Sept. 20, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 25.0 μg/m3 (23) N/A 26.0
 
Sept. 20, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 31.0 μg/m3 (28) N/A 28.0
 
Sept. 20, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 25.0 μg/m3 (23) N/A 23.0
 
Sept. 20, 2020, midnight N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 37.0 μg/m3 (34) N/A 34.0
 
Sept. 19, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 38.0 μg/m3 (35) N/A 35.0
 
Sept. 19, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 37.0 μg/m3 (34) N/A 34.0
 
Sept. 19, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 39.0 μg/m3 (35) N/A 35.0
 
Sept. 19, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 36.0 μg/m3 (33) N/A 33.0
 
Sept. 19, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 42.0 μg/m3 (38) N/A 38.0
 
Sept. 19, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 37.0 μg/m3 (34) N/A 34.0
 
Sept. 19, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 25.0 μg/m3 (23) N/A 23.0
 
Sept. 19, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 14.0 μg/m3 (13) N/A 19.0
 
Sept. 19, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 18.0 μg/m3 (16) N/A 16.0
 
Sept. 19, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 15.0 μg/m3 (14) N/A 14.0
 
Sept. 19, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 16.0 μg/m3 (15) N/A 15.0
 
Sept. 19, 2020, noon N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 18.0 μg/m3 (16) N/A 16.0
 
Sept. 19, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 34.0 μg/m3 (31) N/A 31.0
 
Sept. 19, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 96.0 μg/m3 (70) N/A 70.0
 
Sept. 19, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 150.0 μg/m3 (98) N/A 98.0
 
Sept. 19, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 184.0 μg/m3 (114) N/A 114.0
 
Sept. 19, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 143.0 μg/m3 (94) N/A 94.0
 
Sept. 19, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 165.0 μg/m3 (105) N/A 105.0
 
Sept. 19, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 207.0 μg/m3 (126) N/A 126.0
 
Sept. 19, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 207.0 μg/m3 (126) N/A 126.0
 
Sept. 19, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 213.0 μg/m3 (129) N/A 129.0
 
Sept. 19, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 203.0 μg/m3 (124) N/A 124.0
 
Sept. 19, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 209.0 μg/m3 (127) N/A 127.0
 
Sept. 19, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A 236.0 μg/m3 (140) N/A 140.0