ID: 529

AQSQID: 290770036

Site Name: Hillcrest Hs

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

Updated: Oct. 25, 2021, 11:02 a.m.

Location: Springfield (W Smith St), MO

Reporting: True, Located: True

Current AQI: 23.0

Springfield (W Smith St) MO, US: 37.256069, -93.299692

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Oct. 25, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A 1.6 μg/m3 (7) 23.0
 
Oct. 25, 2021, 8 a.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. 25, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A N/A 0.7 μg/m3 (3) 16.0
 
Oct. 25, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A -1.5 μg/m3 (0) 15.0
 
Oct. 25, 2021, 5 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 (0) 16.0
 
Oct. 25, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A 1.2 μg/m3 (5) 15.0
 
Oct. 25, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A 1.6 μg/m3 (7) 15.0
 
Oct. 25, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A N/A -1.1 μg/m3 (0) 16.0
 
Oct. 25, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 6.1 μg/m3 (26) 26.0
 
Oct. 25, 2021, midnight N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 6.9 μg/m3 (29) 29.0
 
Oct. 24, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 4.1 μg/m3 (18) 25.0
 
Oct. 24, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 4.2 μg/m3 (18) 25.0
 
Oct. 24, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 6.1 μg/m3 (26) 26.0
 
Oct. 24, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 0.8 μg/m3 (4) 27.0
 
Oct. 24, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 3.4 μg/m3 (15) 29.0
 
Oct. 24, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 1.6 μg/m3 (7) 30.0
 
Oct. 24, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 3.1 μg/m3 (13) 29.0
 
Oct. 24, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 3.6 μg/m3 (16) 28.0
 
Oct. 24, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 4.4 μg/m3 (19) 26.0
 
Oct. 24, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A 6.9 μg/m3 (29) 29.0
 
Oct. 24, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 7.4 μg/m3 (31) 31.0
 
Oct. 24, 2021, noon 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. 24, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 7.1 μg/m3 (30) 30.0
 
Oct. 24, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 2.3 μg/m3 (10) 21.0
 
Oct. 24, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 6.3 μg/m3 (27) 27.0
 
Oct. 24, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 6.5 μg/m3 (28) 28.0
 
Oct. 24, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 8.7 μg/m3 (37) 37.0
 
Oct. 24, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A -2.8 μg/m3 (0) 24.0
 
Oct. 24, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 15.9 μg/m3 (59) 59.0
 
Oct. 24, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 13.8 μg/m3 (55) 55.0
 
Oct. 24, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 7.1 μg/m3 (30) 30.0
 
Oct. 24, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A -1.0 μg/m3 (0) 32.0
 
Oct. 24, 2021, 1 a.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. 24, 2021, midnight N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 2.3 μg/m3 (10) 32.0
 
Oct. 23, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A N/A 30.0
 
Oct. 23, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A -1.4 μg/m3 (0) 31.0
 
Oct. 23, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 4.7 μg/m3 (20) 33.0
 
Oct. 23, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 4.9 μg/m3 (21) 31.0
 
Oct. 23, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A -0.5 μg/m3 (0) 29.0
 
Oct. 23, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 10.2 μg/m3 (43) 43.0
 
Oct. 23, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A N/A 32.0
 
Oct. 23, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 3.9 μg/m3 (17) 24.0
 
Oct. 23, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 6.0 μg/m3 (25) 25.0
 
Oct. 23, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A 0.1 μg/m3 (1) 23.0
 
Oct. 23, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 5.3 μg/m3 (23) 25.0
 
Oct. 23, 2021, noon N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 4.7 μg/m3 (20) 24.0
 
Oct. 23, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 0.2 μg/m3 (1) 25.0
 
Oct. 23, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 2.0 μg/m3 (9) 27.0
 
Oct. 23, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 5.6 μg/m3 (24) 24.0
 
Oct. 23, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 3.5 μg/m3 (15) 22.0
 
Oct. 23, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 6.2 μg/m3 (26) 26.0
 
Oct. 23, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A 4.7 μg/m3 (20) 23.0
 
Oct. 23, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 3.1 μg/m3 (13) 29.0
 
Oct. 23, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 1.1 μg/m3 (5) 28.0
 
Oct. 23, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 0.6 μg/m3 (3) 26.0
 
Oct. 22, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 1.1 μg/m3 (5) 38.0
 
Oct. 22, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 1.7 μg/m3 (8) 42.0
 
Oct. 22, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 3.5 μg/m3 (15) 42.0
 
Oct. 22, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 0.6 μg/m3 (3) 38.0
 
Oct. 22, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 5.3 μg/m3 (23) 36.0
 
Oct. 22, 2021, 5 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 (14) 31.0
 
Oct. 22, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 4.7 μg/m3 (20) 24.0
 
Oct. 22, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A 2.7 μg/m3 (12) 17.0
 
Oct. 22, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) N/A N/A 5.6 μg/m3 (24) 24.0
 
Oct. 22, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 7.1 μg/m3 (30) 30.0
 
Oct. 22, 2021, noon N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 7.0 μg/m3 (30) 30.0
 
Oct. 22, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 6.8 μg/m3 (29) 29.0
 
Oct. 22, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 7.4 μg/m3 (31) 31.0
 
Oct. 22, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 6.7 μg/m3 (28) 28.0
 
Oct. 22, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 7.4 μg/m3 (31) 31.0
 
Oct. 22, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 8.1 μg/m3 (34) 34.0
 
Oct. 22, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 8.2 μg/m3 (35) 35.0
 
Oct. 22, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 5.5 μg/m3 (23) 23.0
 
Oct. 22, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 6.6 μg/m3 (28) 28.0
 
Oct. 22, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 5.7 μg/m3 (24) 24.0
 
Oct. 22, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 5.2 μg/m3 (22) 22.0
 
Oct. 22, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A N/A 7.7 μg/m3 (33) 33.0
 
Oct. 22, 2021, midnight N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 3.4 μg/m3 (15) 22.0
 
Oct. 21, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A -0.6 μg/m3 (0) 25.0
 
Oct. 21, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A N/A 29.0
 
Oct. 21, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 1.4 μg/m3 (6) 29.0
 
Oct. 21, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 0.8 μg/m3 (4) 28.0
 
Oct. 21, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A -2.4 μg/m3 (0) 27.0
 
Oct. 21, 2021, 6 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. 21, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 1.2 μg/m3 (5) 25.0
 
Oct. 21, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 0.7 μg/m3 (3) 21.0
 
Oct. 21, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A N/A 18.0
 
Oct. 21, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A 2.1 μg/m3 (9) 15.0
 
Oct. 21, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A N/A 0.4 μg/m3 (2) 11.0
 
Oct. 21, 2021, noon N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A N/A -1.1 μg/m3 (0) 9.0
 
Oct. 21, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A N/A 0.8 μg/m3 (4) 12.0
 
Oct. 21, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A N/A 0.7 μg/m3 (3) 13.0
 
Oct. 21, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) N/A N/A 0.5 μg/m3 (3) 8.0
 
Oct. 21, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) N/A N/A 2.1 μg/m3 (9) 9.0
 
Oct. 21, 2021, 7 a.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 (8) 10.0
 
Oct. 21, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A N/A 0.5 μg/m3 (3) 11.0
 
Oct. 21, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A 8.8 μg/m3 (37) 37.0
 
Oct. 21, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 11.3 μg/m3 (48) 48.0
 
Oct. 21, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 8.0 μg/m3 (34) 34.0
 
Oct. 21, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A 2.6 μg/m3 (11) 17.0
 
Oct. 21, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 4.5 μg/m3 (19) 19.0
 
Oct. 21, 2021, midnight N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 7.1 μg/m3 (30) 30.0
 
Oct. 20, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 7.4 μg/m3 (31) 31.0
 
Oct. 20, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A 6.9 μg/m3 (29) 29.0
 
Oct. 20, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 8.0 μg/m3 (34) 34.0
 
Oct. 20, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
Oct. 20, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 7.5 μg/m3 (32) 33.0
 
Oct. 20, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 24.6 μg/m3 (78) 78.0
 
Oct. 20, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 13.1 μg/m3 (54) 54.0
 
Oct. 20, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 3.8 μg/m3 (16) 38.0
 
Oct. 20, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 23.5 μg/m3 (75) 75.0
 
Oct. 20, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 21.0 μg/m3 (20) 9.3 μg/m3 (39) 39.0
 
Oct. 20, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 21.0 μg/m3 (20) 3.2 μg/m3 (14) 32.0
 
Oct. 20, 2021, noon N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 19.0 μg/m3 (18) 4.6 μg/m3 (20) 27.0
 
Oct. 20, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 16.0 μg/m3 (15) 7.2 μg/m3 (31) 31.0
 
Oct. 20, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 16.0 μg/m3 (15) 7.5 μg/m3 (32) 32.0
 
Oct. 20, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 15.0 μg/m3 (14) 11.3 μg/m3 (48) 48.0
 
Oct. 20, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 14.0 μg/m3 (13) 8.9 μg/m3 (38) 38.0
 
Oct. 20, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 14.0 μg/m3 (13) 3.8 μg/m3 (16) 38.0
 
Oct. 20, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 14.0 μg/m3 (13) 6.7 μg/m3 (28) 39.0
 
Oct. 20, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 14.0 μg/m3 (13) 8.8 μg/m3 (37) 41.0
 
Oct. 20, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 15.0 μg/m3 (14) 15.5 μg/m3 (59) 59.0
 
Oct. 20, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 14.0 μg/m3 (13) 13.8 μg/m3 (55) 55.0
 
Oct. 20, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 13.0 μg/m3 (13) 4.1 μg/m3 (18) 37.0
 
Oct. 20, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 12.0 μg/m3 (12) 3.2 μg/m3 (14) 37.0
 
Oct. 20, 2021, midnight N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 12.0 μg/m3 (12) 6.0 μg/m3 (25) 35.0
 
Oct. 19, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 13.0 μg/m3 (13) 4.5 μg/m3 (19) 35.0
 
Oct. 19, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 13.0 μg/m3 (13) 1.8 μg/m3 (8) 38.0
 
Oct. 19, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 14.0 μg/m3 (13) 5.0 μg/m3 (21) 40.0
 
Oct. 19, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 12.0 μg/m3 (12) 2.7 μg/m3 (12) 40.0
 
Oct. 19, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 21.0 μg/m3 (20) 1.0 μg/m3 (5) 39.0
 
Oct. 19, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 11.0 μg/m3 (11) 5.4 μg/m3 (23) 40.0
 
Oct. 19, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 11.0 μg/m3 (11) 5.8 μg/m3 (25) 39.0
 
Oct. 19, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 13.0 μg/m3 (13) 6.5 μg/m3 (28) 37.0
 
Oct. 19, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 14.0 μg/m3 (13) 2.6 μg/m3 (11) 32.0
 
Oct. 19, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 16.0 μg/m3 (15) 5.0 μg/m3 (21) 28.0
 
Oct. 19, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 20.0 μg/m3 (19) 8.4 μg/m3 (36) 36.0
 
Oct. 19, 2021, noon N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 18.0 μg/m3 (17) 3.6 μg/m3 (16) 25.0
 
Oct. 19, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 12.0 μg/m3 (12) 6.9 μg/m3 (29) 29.0
 
Oct. 19, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 12.0 μg/m3 (12) 1.4 μg/m3 (6) 33.0
 
Oct. 19, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 12.0 μg/m3 (12) 0.7 μg/m3 (3) 34.0
 
Oct. 19, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 11.0 μg/m3 (11) 3.9 μg/m3 (17) 35.0
 
Oct. 19, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 11.0 μg/m3 (11) -1.3 μg/m3 (0) 32.0
 
Oct. 19, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 11.0 μg/m3 (11) 0.8 μg/m3 (4) 32.0
 
Oct. 19, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 10.0 μg/m3 (10) 1.5 μg/m3 (7) 28.0
 
Oct. 19, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 10.0 μg/m3 (10) 4.1 μg/m3 (18) 29.0
 
Oct. 19, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 10.0 μg/m3 (10) -0.4 μg/m3 (0) 30.0
 
Oct. 19, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 11.0 μg/m3 (11) 5.4 μg/m3 (23) 30.0
 
Oct. 19, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 14.0 μg/m3 (13) 4.6 μg/m3 (20) 23.0
 
Oct. 19, 2021, midnight N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 15.0 μg/m3 (14) 3.7 μg/m3 (16) 25.0
 
Oct. 18, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 11.0 μg/m3 (11) 1.4 μg/m3 (6) 33.0
 
Oct. 18, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 9.0 μg/m3 (9) 1.6 μg/m3 (7) 38.0
 
Oct. 18, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 8.0 μg/m3 (8) 5.1 μg/m3 (22) 41.0
 
Oct. 18, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 7.0 μg/m3 (7) 2.5 μg/m3 (11) 44.0
 
Oct. 18, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 7.0 μg/m3 (7) 5.3 μg/m3 (23) 43.0
 
Oct. 18, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 7.0 μg/m3 (7) 2.3 μg/m3 (10) 44.0
 
Oct. 18, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 8.0 μg/m3 (8) 3.1 μg/m3 (13) 43.0
 
Oct. 18, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 11.0 μg/m3 (11) 2.7 μg/m3 (12) 37.0
 
Oct. 18, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 15.0 μg/m3 (14) 5.9 μg/m3 (25) 31.0
 
Oct. 18, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 12.0 μg/m3 (12) 0.8 μg/m3 (4) 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 34.0 μg/m3 (32) 5.4 μg/m3 (23) 32.0
 
Oct. 18, 2021, noon N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 78.0 μg/m3 (63) 6.0 μg/m3 (25) 63.0
 
Oct. 18, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) N/A 13.0 μg/m3 (13) 1.8 μg/m3 (8) 13.0
 
Oct. 18, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A 8.0 μg/m3 (8) 1.6 μg/m3 (7) 13.0
 
Oct. 18, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A 9.0 μg/m3 (9) 4.4 μg/m3 (19) 19.0
 
Oct. 18, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A 9.0 μg/m3 (9) 5.1 μg/m3 (22) 22.0
 
Oct. 18, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A 9.0 μg/m3 (9) 4.6 μg/m3 (20) 20.0
 
Oct. 18, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A 12.0 μg/m3 (12) 7.5 μg/m3 (32) 32.0