ID: 1897

AQSQID: 080690009

Site Name: Ft. Collins - Csu Facilities

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

Updated: Jan. 27, 2022, 7:34 a.m.

Location: Fort Collins (Historic Fort Collins), CO

Reporting: True, Located: True

Current AQI: 57.0

Fort Collins (Historic Fort Collins) CO, US: 40.571259, -105.079765

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 27, 2022, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (20) 14.6 μg/m3 (57) 57.0
 
Jan. 27, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (17) 11.2 μg/m3 (47) 47.0
 
Jan. 27, 2022, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (19) 11.7 μg/m3 (49) 49.0
 
Jan. 27, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (20) 11.9 μg/m3 (50) 50.0
 
Jan. 27, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (24) 12.7 μg/m3 (53) 53.0
 
Jan. 27, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (22) 12.9 μg/m3 (53) 53.0
 
Jan. 27, 2022, midnight N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (19) 9.6 μg/m3 (40) 40.0
 
Jan. 26, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 8.1 μg/m3 (34) 34.0
 
Jan. 26, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (13) 8.4 μg/m3 (36) 36.0
 
Jan. 26, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 9.2 μg/m3 (39) 39.0
 
Jan. 26, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (10) 7.0 μg/m3 (30) 30.0
 
Jan. 26, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (10) 6.6 μg/m3 (28) 28.0
 
Jan. 26, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 4.6 μg/m3 (20) 20.0
 
Jan. 26, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (8) 3.8 μg/m3 (16) 16.0
 
Jan. 26, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (7) 5.3 μg/m3 (23) 23.0
 
Jan. 26, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (11) 7.8 μg/m3 (33) 33.0
 
Jan. 26, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (8) 6.7 μg/m3 (28) 28.0
 
Jan. 26, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (6) 3.8 μg/m3 (16) 16.0
 
Jan. 26, 2022, noon N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 3.4 μg/m3 (15) 15.0
 
Jan. 26, 2022, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 4.8 μg/m3 (20) 20.0
 
Jan. 26, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (6) 5.5 μg/m3 (23) 23.0
 
Jan. 26, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (7) 7.2 μg/m3 (31) 31.0
 
Jan. 26, 2022, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 8.4 μg/m3 (36) 36.0
 
Jan. 26, 2022, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 9.0 μg/m3 (38) 38.0
 
Jan. 26, 2022, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 3.9 μg/m3 (17) 17.0
 
Jan. 26, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 3.6 μg/m3 (16) 16.0
 
Jan. 26, 2022, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 4.2 μg/m3 (18) 18.0
 
Jan. 26, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 4.8 μg/m3 (20) 20.0
 
Jan. 26, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 4.2 μg/m3 (18) 18.0
 
Jan. 26, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 3.9 μg/m3 (17) 17.0
 
Jan. 26, 2022, midnight N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 3.5 μg/m3 (15) 15.0
 
Jan. 25, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 2.9 μg/m3 (13) 13.0
 
Jan. 25, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) 1.8 μg/m3 (8) 8.0
 
Jan. 25, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) 1.5 μg/m3 (7) 7.0
 
Jan. 25, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) 1.4 μg/m3 (6) 6.0
 
Jan. 25, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (7) 2.5 μg/m3 (11) 11.0
 
Jan. 25, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 1.8 μg/m3 (8) 8.0
 
Jan. 25, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 1.7 μg/m3 (8) 8.0
 
Jan. 25, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (1) 0.8 μg/m3 (4) 4.0
 
Jan. 25, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (1) 0.8 μg/m3 (4) 4.0
 
Jan. 25, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 0.8 μg/m3 (4) 4.0
 
Jan. 25, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 0.5 μg/m3 (3) 3.0
 
Jan. 25, 2022, noon N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (1) 1.7 μg/m3 (8) 8.0
 
Jan. 25, 2022, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) 2.1 μg/m3 (9) 9.0
 
Jan. 25, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 3.2 μg/m3 (14) 14.0
 
Jan. 25, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 3.4 μg/m3 (15) 15.0
 
Jan. 25, 2022, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 6.1 μg/m3 (26) 26.0
 
Jan. 25, 2022, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 6.4 μg/m3 (27) 27.0
 
Jan. 25, 2022, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 6.5 μg/m3 (28) 28.0
 
Jan. 25, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 6.5 μg/m3 (28) 28.0
 
Jan. 25, 2022, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 5.2 μg/m3 (22) 22.0
 
Jan. 25, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (7) 2.7 μg/m3 (12) 12.0
 
Jan. 25, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (11) 2.6 μg/m3 (11) 11.0
 
Jan. 25, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (24) 6.0 μg/m3 (25) 25.0
 
Jan. 25, 2022, midnight N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (23) 5.3 μg/m3 (23) 23.0
 
Jan. 24, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (18) 4.7 μg/m3 (20) 20.0
 
Jan. 24, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (17) 4.3 μg/m3 (18) 18.0
 
Jan. 24, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (19) 4.5 μg/m3 (19) 19.0
 
Jan. 24, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (21) 5.2 μg/m3 (22) 22.0
 
Jan. 24, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 4.0 μg/m3 (17) 17.0
 
Jan. 24, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (16) 4.5 μg/m3 (19) 19.0
 
Jan. 24, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 4.7 μg/m3 (20) 20.0
 
Jan. 24, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (21) 5.5 μg/m3 (23) 23.0
 
Jan. 24, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (21) 4.8 μg/m3 (20) 21.0
 
Jan. 24, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (13) 4.9 μg/m3 (21) 21.0
 
Jan. 24, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (16) 5.3 μg/m3 (23) 23.0
 
Jan. 24, 2022, noon N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (11) 4.9 μg/m3 (21) 21.0
 
Jan. 24, 2022, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (6) 4.4 μg/m3 (19) 19.0
 
Jan. 24, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 4.6 μg/m3 (20) 20.0
 
Jan. 24, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (6) 5.3 μg/m3 (23) 23.0
 
Jan. 24, 2022, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (6) 4.8 μg/m3 (20) 20.0
 
Jan. 24, 2022, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 7.4 μg/m3 (31) 31.0
 
Jan. 24, 2022, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 7.2 μg/m3 (31) 31.0
 
Jan. 24, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 6.8 μg/m3 (29) 29.0
 
Jan. 24, 2022, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (13) 8.7 μg/m3 (37) 37.0
 
Jan. 24, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (16) 10.5 μg/m3 (44) 44.0
 
Jan. 24, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (18) 11.8 μg/m3 (50) 50.0
 
Jan. 24, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (16) 10.0 μg/m3 (42) 42.0
 
Jan. 24, 2022, midnight N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 7.3 μg/m3 (31) 31.0
 
Jan. 23, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (13) 6.1 μg/m3 (26) 26.0
 
Jan. 23, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (10) 4.2 μg/m3 (18) 18.0
 
Jan. 23, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (10) 3.7 μg/m3 (16) 16.0
 
Jan. 23, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 1.8 μg/m3 (8) 8.0
 
Jan. 23, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 1.1 μg/m3 (5) 5.0
 
Jan. 23, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (6) 2.8 μg/m3 (12) 12.0
 
Jan. 23, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (8) 3.7 μg/m3 (16) 16.0
 
Jan. 23, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 2.5 μg/m3 (11) 11.0
 
Jan. 23, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 2.4 μg/m3 (10) 10.0
 
Jan. 23, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 2.9 μg/m3 (13) 13.0
 
Jan. 23, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (6) 5.0 μg/m3 (21) 21.0
 
Jan. 23, 2022, noon N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (10) 9.2 μg/m3 (39) 39.0
 
Jan. 23, 2022, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 11.2 μg/m3 (47) 47.0
 
Jan. 23, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 13.5 μg/m3 (54) 54.0
 
Jan. 23, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (16) 14.9 μg/m3 (57) 57.0
 
Jan. 23, 2022, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (13) 11.9 μg/m3 (50) 50.0
 
Jan. 23, 2022, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (16) 15.5 μg/m3 (59) 59.0
 
Jan. 23, 2022, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (19) 16.8 μg/m3 (61) 61.0
 
Jan. 23, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (24) 20.7 μg/m3 (70) 70.0
 
Jan. 23, 2022, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (19) 16.3 μg/m3 (60) 60.0
 
Jan. 23, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (16) 9.9 μg/m3 (42) 42.0
 
Jan. 23, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (16) 10.6 μg/m3 (45) 45.0
 
Jan. 23, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (27) 10.3 μg/m3 (43) 43.0
 
Jan. 23, 2022, midnight N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (16) 6.5 μg/m3 (28) 28.0
 
Jan. 22, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 4.9 μg/m3 (21) 21.0
 
Jan. 22, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 4.8 μg/m3 (20) 20.0
 
Jan. 22, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (8) 4.9 μg/m3 (21) 21.0
 
Jan. 22, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (10) 5.1 μg/m3 (22) 22.0
 
Jan. 22, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (7) 4.5 μg/m3 (19) 19.0
 
Jan. 22, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (10) 4.0 μg/m3 (17) 17.0
 
Jan. 22, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (8) 3.7 μg/m3 (16) 16.0
 
Jan. 22, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 2.4 μg/m3 (10) 10.0
 
Jan. 22, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 3.0 μg/m3 (13) 13.0
 
Jan. 22, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 3.6 μg/m3 (16) 16.0
 
Jan. 22, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 4.7 μg/m3 (20) 20.0
 
Jan. 22, 2022, noon N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 5.1 μg/m3 (22) 22.0
 
Jan. 22, 2022, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 4.0 μg/m3 (17) 17.0
 
Jan. 22, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) 2.6 μg/m3 (11) 11.0
 
Jan. 22, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 3.6 μg/m3 (16) 16.0
 
Jan. 22, 2022, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 4.2 μg/m3 (18) 18.0
 
Jan. 22, 2022, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 3.5 μg/m3 (15) 15.0
 
Jan. 22, 2022, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 3.6 μg/m3 (16) 16.0
 
Jan. 22, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) 1.8 μg/m3 (8) 8.0
 
Jan. 22, 2022, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 3.0 μg/m3 (13) 13.0
 
Jan. 22, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 2.6 μg/m3 (11) 11.0
 
Jan. 22, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) 1.9 μg/m3 (8) 8.0
 
Jan. 22, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) 2.1 μg/m3 (9) 9.0
 
Jan. 22, 2022, midnight N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (1) 1.2 μg/m3 (5) 5.0
 
Jan. 21, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 1.2 μg/m3 (5) 5.0
 
Jan. 21, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) 1.0 μg/m3 (5) 5.0
 
Jan. 21, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (1) 0.9 μg/m3 (4) 4.0
 
Jan. 21, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (1) 0.8 μg/m3 (4) 4.0
 
Jan. 21, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) 1.9 μg/m3 (8) 8.0
 
Jan. 21, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (6) 5.7 μg/m3 (24) 24.0
 
Jan. 21, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (17) 16.0 μg/m3 (60) 60.0
 
Jan. 21, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (17) 16.8 μg/m3 (61) 61.0
 
Jan. 21, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 13.9 μg/m3 (55) 55.0
 
Jan. 21, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 14.3 μg/m3 (56) 56.0
 
Jan. 21, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (16) 16.2 μg/m3 (60) 60.0
 
Jan. 21, 2022, noon N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (16) 16.0 μg/m3 (60) 60.0
 
Jan. 21, 2022, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (17) 17.1 μg/m3 (62) 62.0
 
Jan. 21, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (17) 17.0 μg/m3 (62) 62.0
 
Jan. 21, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (18) 17.7 μg/m3 (63) 63.0
 
Jan. 21, 2022, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (21) 19.2 μg/m3 (66) 66.0
 
Jan. 21, 2022, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 37.0 μg/m3 (35) 24.2 μg/m3 (77) 77.0
 
Jan. 21, 2022, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (27) 22.6 μg/m3 (74) 74.0
 
Jan. 21, 2022, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (32) 22.8 μg/m3 (74) 74.0
 
Jan. 21, 2022, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 33.0 μg/m3 (31) 24.9 μg/m3 (78) 78.0
 
Jan. 21, 2022, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (28) 24.7 μg/m3 (78) 78.0
 
Jan. 21, 2022, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 21.8 μg/m3 (72) 72.0
 
Jan. 21, 2022, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (21) 19.5 μg/m3 (67) 67.0
 
Jan. 21, 2022, midnight N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (16) 15.3 μg/m3 (58) 58.0
 
Jan. 20, 2022, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 14.8 μg/m3 (57) 57.0
 
Jan. 20, 2022, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (18) 16.6 μg/m3 (61) 61.0
 
Jan. 20, 2022, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (18) 16.5 μg/m3 (61) 61.0
 
Jan. 20, 2022, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (16) 15.3 μg/m3 (58) 58.0
 
Jan. 20, 2022, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 13.3 μg/m3 (54) 54.0
 
Jan. 20, 2022, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (13) 12.1 μg/m3 (51) 51.0
 
Jan. 20, 2022, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 11.4 μg/m3 (48) 48.0
 
Jan. 20, 2022, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (11) 10.4 μg/m3 (44) 44.0
 
Jan. 20, 2022, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (11) 10.7 μg/m3 (45) 45.0
 
Jan. 20, 2022, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 11.3 μg/m3 (48) 48.0
 
Jan. 20, 2022, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (13) 12.3 μg/m3 (52) 52.0
 
Jan. 20, 2022, noon N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 13.5 μg/m3 (54) 54.0
 
Jan. 20, 2022, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 14.4 μg/m3 (56) 56.0
 
Jan. 20, 2022, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (16) 15.2 μg/m3 (58) 58.0
 
Jan. 20, 2022, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (16) 15.2 μg/m3 (58) 58.0
 
Jan. 20, 2022, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (17) 15.6 μg/m3 (59) 59.0
 
Jan. 20, 2022, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 13.1 μg/m3 (54) 54.0