ID: 9698

AQSQID: 840460990009

Site Name: Sf-Usd

Added: March 30, 2021, 5:40 a.m.

Updated: Oct. 19, 2021, 1:02 p.m.

Location: Sioux Falls (W Nobel St), SD

Reporting: True, Located: True

Current AQI: 26.0

Sioux Falls (W Nobel St) SD, US: 43.59901, -96.78331

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Oct. 19, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 18.0 μg/m3 (17) 5.5 μg/m3 (23) 26.0
 
Oct. 19, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 21.0 μg/m3 (20) 5.5 μg/m3 (23) 30.0
 
Oct. 19, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 21.0 μg/m3 (20) 2.4 μg/m3 (10) 31.0
 
Oct. 19, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 28.0 μg/m3 (26) 6.0 μg/m3 (25) 32.0
 
Oct. 19, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 62.0 μg/m3 (55) 9.1 μg/m3 (38) 55.0
 
Oct. 19, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 29.0 μg/m3 (27) 3.3 μg/m3 (14) 33.0
 
Oct. 19, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 43.0 μg/m3 (40) 5.7 μg/m3 (24) 40.0
 
Oct. 19, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 49.0 μg/m3 (46) 7.7 μg/m3 (33) 46.0
 
Oct. 19, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 64.0 μg/m3 (56) 3.1 μg/m3 (13) 56.0
 
Oct. 19, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 73.0 μg/m3 (60) 3.8 μg/m3 (16) 60.0
 
Oct. 19, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 52.0 μg/m3 (49) 6.7 μg/m3 (28) 49.0
 
Oct. 19, 2021, midnight N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 49.0 μg/m3 (46) 6.7 μg/m3 (28) 46.0
 
Oct. 18, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 51.0 μg/m3 (48) 0.7 μg/m3 (3) 48.0
 
Oct. 18, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 128.0 μg/m3 (88) 1.6 μg/m3 (7) 88.0
 
Oct. 18, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 118.0 μg/m3 (83) 2.6 μg/m3 (11) 83.0
 
Oct. 18, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A 85.0 μg/m3 (66) 1.4 μg/m3 (6) 66.0
 
Oct. 18, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 86.0 μg/m3 (67) 1.2 μg/m3 (5) 67.0
 
Oct. 18, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 52.0 μg/m3 (49) -1.4 μg/m3 (0) 49.0
 
Oct. 18, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 42.0 μg/m3 (39) -1.9 μg/m3 (0) 39.0
 
Oct. 18, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 35.0 μg/m3 (33) -1.6 μg/m3 (0) 33.0
 
Oct. 18, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 39.0 μg/m3 (37) -2.6 μg/m3 (0) 37.0
 
Oct. 18, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 28.0 μg/m3 (26) 0.0 μg/m3 (0) 26.0
 
Oct. 18, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A 36.0 μg/m3 (34) 4.8 μg/m3 (20) 34.0
 
Oct. 18, 2021, noon N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A 22.0 μg/m3 (21) 4.1 μg/m3 (18) 21.0
 
Oct. 18, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A 25.0 μg/m3 (24) -1.9 μg/m3 (0) 24.0
 
Oct. 18, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 24.0 μg/m3 (23) -1.9 μg/m3 (0) 23.0
 
Oct. 18, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 26.0 μg/m3 (25) 0.4 μg/m3 (2) 25.0
 
Oct. 18, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 24.0 μg/m3 (23) 4.6 μg/m3 (20) 25.0
 
Oct. 18, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 29.0 μg/m3 (27) 6.9 μg/m3 (29) 29.0
 
Oct. 18, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A -1.6 μg/m3 (0) 28.0
 
Oct. 18, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A -0.5 μg/m3 (0) 31.0
 
Oct. 18, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 1.0 μg/m3 (5) 31.0
 
Oct. 18, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 0.4 μg/m3 (2) 34.0
 
Oct. 18, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 3.1 μg/m3 (13) 31.0
 
Oct. 18, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A 5.5 μg/m3 (23) 23.0
 
Oct. 18, 2021, midnight N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A -3.4 μg/m3 (0) 23.0
 
Oct. 17, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A N/A 24.0
 
Oct. 17, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 1.9 μg/m3 (8) 38.0
 
Oct. 17, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A -4.6 μg/m3 (0) 38.0
 
Oct. 17, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A N/A 38.0
 
Oct. 17, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A -2.4 μg/m3 (0) 38.0
 
Oct. 17, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 2.4 μg/m3 (10) 37.0
 
Oct. 17, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 3.6 μg/m3 (16) 33.0
 
Oct. 17, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 15.0 μg/m3 (58) 58.0
 
Oct. 17, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A N/A 3.3 μg/m3 (14) 14.0
 
Oct. 17, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A N/A -1.7 μg/m3 (0) 10.0
 
Oct. 17, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) N/A N/A -4.1 μg/m3 (0) 4.0
 
Oct. 17, 2021, noon N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A -2.9 μg/m3 (0) 2.0
 
Oct. 17, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A N/A -0.9 μg/m3 (0) 3.0
 
Oct. 17, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) N/A N/A -0.2 μg/m3 (0) 6.0
 
Oct. 17, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) N/A N/A 0.7 μg/m3 (3) 7.0
 
Oct. 17, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A N/A 2.6 μg/m3 (11) 11.0
 
Oct. 17, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A N/A 4.3 μg/m3 (18) 18.0
 
Oct. 17, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A N/A 1.4 μg/m3 (6) 12.0
 
Oct. 17, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A N/A 1.4 μg/m3 (6) 11.0
 
Oct. 17, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A N/A 3.3 μg/m3 (14) 14.0
 
Oct. 17, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A N/A 3.8 μg/m3 (16) 16.0
 
Oct. 17, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 2.9 μg/m3 (13) 19.0
 
Oct. 17, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A -0.5 μg/m3 (0) 18.0
 
Oct. 17, 2021, midnight N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 2.9 μg/m3 (13) 25.0
 
Oct. 16, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 0.7 μg/m3 (3) 30.0
 
Oct. 16, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A -0.9 μg/m3 (0) 37.0
 
Oct. 16, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 14.8 μg/m3 (57) 57.0
 
Oct. 16, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A -0.7 μg/m3 (0) 38.0
 
Oct. 16, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A -2.4 μg/m3 (0) 36.0
 
Oct. 16, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A -1.2 μg/m3 (0) 36.0
 
Oct. 16, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A -2.7 μg/m3 (0) 33.0
 
Oct. 16, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A -1.9 μg/m3 (0) 27.0
 
Oct. 16, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A -0.7 μg/m3 (0) 23.0
 
Oct. 16, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A -1.7 μg/m3 (0) 17.0
 
Oct. 16, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A N/A -1.2 μg/m3 (0) 13.0
 
Oct. 16, 2021, noon N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A N/A 1.3 μg/m3 (6) 11.0
 
Oct. 16, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A N/A 0.9 μg/m3 (4) 13.0
 
Oct. 16, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A -0.2 μg/m3 (0) 17.0
 
Oct. 16, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 0.0 μg/m3 (0) 19.0
 
Oct. 16, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 1.2 μg/m3 (5) 19.0
 
Oct. 16, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 1.4 μg/m3 (6) 20.0
 
Oct. 16, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A -1.9 μg/m3 (0) 18.0
 
Oct. 16, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A N/A -0.9 μg/m3 (0) 14.0
 
Oct. 16, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A -1.4 μg/m3 (0) 15.0
 
Oct. 16, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A -0.2 μg/m3 (0) 17.0
 
Oct. 16, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A -1.9 μg/m3 (0) 15.0
 
Oct. 16, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A -1.4 μg/m3 (0) 19.0
 
Oct. 16, 2021, midnight N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 2.6 μg/m3 (11) 25.0
 
Oct. 15, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 2.1 μg/m3 (9) 30.0
 
Oct. 15, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 1.2 μg/m3 (5) 31.0
 
Oct. 15, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 2.1 μg/m3 (9) 33.0
 
Oct. 15, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 2.4 μg/m3 (10) 33.0
 
Oct. 15, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A -3.2 μg/m3 (0) 31.0
 
Oct. 15, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A -4.6 μg/m3 (0) 28.0
 
Oct. 15, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A -1.2 μg/m3 (0) 26.0
 
Oct. 15, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 0.2 μg/m3 (1) 25.0
 
Oct. 15, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A -1.4 μg/m3 (0) 23.0
 
Oct. 15, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 0.7 μg/m3 (3) 18.0
 
Oct. 15, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A N/A 2.4 μg/m3 (10) 14.0
 
Oct. 15, 2021, noon N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A N/A 0.0 μg/m3 (0) 13.0
 
Oct. 15, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A N/A -2.9 μg/m3 (0) 13.0
 
Oct. 15, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A -2.7 μg/m3 (0) 15.0
 
Oct. 15, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 0.4 μg/m3 (2) 19.0
 
Oct. 15, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 0.4 μg/m3 (2) 20.0
 
Oct. 15, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A -1.7 μg/m3 (0) 18.0
 
Oct. 15, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A -1.9 μg/m3 (0) 19.0
 
Oct. 15, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A -0.7 μg/m3 (0) 20.0
 
Oct. 15, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 0.5 μg/m3 (3) 18.0
 
Oct. 15, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A -0.9 μg/m3 (0) 20.0
 
Oct. 15, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A -0.2 μg/m3 (0) 20.0
 
Oct. 15, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 1.7 μg/m3 (8) 22.0
 
Oct. 15, 2021, midnight N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 0.7 μg/m3 (3) 22.0
 
Oct. 14, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A -1.7 μg/m3 (0) 26.0
 
Oct. 14, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A -2.7 μg/m3 (0) 29.0
 
Oct. 14, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 14.8 μg/m3 (57) 57.0
 
Oct. 14, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 2.1 μg/m3 (9) 30.0
 
Oct. 14, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 1.9 μg/m3 (8) 29.0
 
Oct. 14, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 0.2 μg/m3 (1) 30.0
 
Oct. 14, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A -2.6 μg/m3 (0) 27.0
 
Oct. 14, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A -2.4 μg/m3 (0) 25.0
 
Oct. 14, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A -1.4 μg/m3 (0) 23.0
 
Oct. 14, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 0.2 μg/m3 (1) 21.0
 
Oct. 14, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 1.9 μg/m3 (8) 21.0
 
Oct. 14, 2021, noon N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 1.4 μg/m3 (6) 20.0
 
Oct. 14, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 1.1 μg/m3 (5) 18.0
 
Oct. 14, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 1.7 μg/m3 (8) 19.0
 
Oct. 14, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 1.4 μg/m3 (6) 19.0
 
Oct. 14, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 0.9 μg/m3 (4) 19.0
 
Oct. 14, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 2.7 μg/m3 (12) 18.0
 
Oct. 14, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 1.6 μg/m3 (7) 18.0
 
Oct. 14, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A -1.7 μg/m3 (0) 18.0
 
Oct. 14, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A -1.9 μg/m3 (0) 18.0
 
Oct. 14, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 0.2 μg/m3 (1) 19.0
 
Oct. 14, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 2.8 μg/m3 (12) 19.0
 
Oct. 14, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 1.4 μg/m3 (6) 19.0
 
Oct. 14, 2021, midnight N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 1.4 μg/m3 (6) 20.0
 
Oct. 13, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 2.9 μg/m3 (13) 22.0
 
Oct. 13, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A 5.5 μg/m3 (23) 23.0
 
Oct. 13, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A 9.2 μg/m3 (39) 39.0
 
Oct. 13, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 7.0 μg/m3 (30) 30.0
 
Oct. 13, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 19.7 μg/m3 (67) 67.0
 
Oct. 13, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A N/A 25.0
 
Oct. 13, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A -2.4 μg/m3 (0) 28.0
 
Oct. 13, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 218.0 μg/m3 (133) 3.3 μg/m3 (14) 133.0
 
Oct. 13, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 217.0 μg/m3 (132) 7.0 μg/m3 (30) 132.0
 
Oct. 13, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 219.0 μg/m3 (133) 7.4 μg/m3 (31) 133.0
 
Oct. 13, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 212.0 μg/m3 (130) 19.7 μg/m3 (67) 130.0
 
Oct. 13, 2021, noon N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 204.0 μg/m3 (126) 3.6 μg/m3 (16) 126.0
 
Oct. 13, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 205.0 μg/m3 (126) 4.3 μg/m3 (18) 126.0
 
Oct. 13, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 208.0 μg/m3 (128) 5.0 μg/m3 (21) 128.0
 
Oct. 13, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 213.0 μg/m3 (130) 8.6 μg/m3 (36) 130.0
 
Oct. 13, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 219.0 μg/m3 (133) 4.6 μg/m3 (20) 133.0
 
Oct. 13, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 223.0 μg/m3 (135) 4.6 μg/m3 (20) 135.0
 
Oct. 13, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 224.0 μg/m3 (136) 2.4 μg/m3 (10) 136.0
 
Oct. 13, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 220.0 μg/m3 (134) 3.6 μg/m3 (16) 134.0
 
Oct. 13, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 212.0 μg/m3 (130) 2.3 μg/m3 (10) 130.0
 
Oct. 13, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 213.0 μg/m3 (130) 5.0 μg/m3 (21) 130.0
 
Oct. 13, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 238.0 μg/m3 (143) 7.6 μg/m3 (32) 143.0
 
Oct. 13, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 245.0 μg/m3 (146) 9.8 μg/m3 (41) 146.0
 
Oct. 13, 2021, midnight N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 228.0 μg/m3 (138) 6.0 μg/m3 (25) 138.0
 
Oct. 12, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 229.0 μg/m3 (138) 3.3 μg/m3 (14) 138.0
 
Oct. 12, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 222.0 μg/m3 (135) 3.1 μg/m3 (13) 135.0
 
Oct. 12, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 212.0 μg/m3 (130) 3.6 μg/m3 (16) 130.0
 
Oct. 12, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 196.0 μg/m3 (122) 2.6 μg/m3 (11) 122.0
 
Oct. 12, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 194.0 μg/m3 (121) 3.6 μg/m3 (16) 121.0
 
Oct. 12, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 189.0 μg/m3 (118) 2.6 μg/m3 (11) 118.0
 
Oct. 12, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 188.0 μg/m3 (118) 1.4 μg/m3 (6) 118.0
 
Oct. 12, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 186.0 μg/m3 (117) -0.9 μg/m3 (0) 117.0
 
Oct. 12, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A 185.0 μg/m3 (116) 1.2 μg/m3 (5) 116.0
 
Oct. 12, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A 186.0 μg/m3 (117) 2.7 μg/m3 (12) 117.0
 
Oct. 12, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) N/A 198.0 μg/m3 (123) 2.1 μg/m3 (9) 123.0
 
Oct. 12, 2021, noon N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A 161.0 μg/m3 (104) 1.2 μg/m3 (5) 104.0