AQSQID: 080310027

Site Name: I25 Denver

Location: Denver (Central W Denver), CO

Reporting: True, Located: True

Current AQI: 32.0

Denver (Central W Denver) CO, US: 39.732144, -105.015313

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 28, 2020, 2 p.m. N/A N/A N/A 35.0 ppb (32) N/A N/A N/A 0.5 ppb (6) N/A 6.0 μg/m3 (25) 32.0
 
Jan. 28, 2020, 1 p.m. N/A N/A N/A 45.0 ppb (42) N/A N/A N/A 1.0 ppb (11) N/A 8.6 μg/m3 (36) 42.0
 
Jan. 28, 2020, noon N/A N/A N/A 47.0 ppb (44) N/A N/A N/A 0.9 ppb (10) N/A 8.1 μg/m3 (34) 44.0
 
Jan. 28, 2020, 11 a.m. N/A N/A N/A 44.0 ppb (41) N/A N/A N/A 0.6 ppb (7) N/A 7.9 μg/m3 (33) 41.0
 
Jan. 28, 2020, 10 a.m. N/A N/A N/A 42.0 ppb (39) N/A N/A N/A 0.4 ppb (4) N/A 4.8 μg/m3 (20) 39.0
 
Jan. 28, 2020, 9 a.m. N/A N/A N/A 39.0 ppb (36) N/A N/A N/A 0.3 ppb (3) N/A 3.4 μg/m3 (14) 36.0
 
Jan. 28, 2020, 8 a.m. N/A N/A N/A 13.0 ppb (12) N/A N/A N/A 0.2 ppb (2) N/A 1.7 μg/m3 (7) 12.0
 
Jan. 28, 2020, 7 a.m. N/A N/A N/A 9.0 ppb (8) N/A N/A N/A 0.2 ppb (2) N/A 1.4 μg/m3 (6) 8.0
 
Jan. 28, 2020, 6 a.m. N/A N/A N/A 8.0 ppb (7) N/A N/A N/A 0.2 ppb (2) N/A 1.4 μg/m3 (6) 7.0
 
Jan. 28, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (4) N/A 5.7 μg/m3 (24) 24.0
 
Jan. 28, 2020, 4 a.m. N/A N/A N/A 36.0 ppb (33) N/A N/A N/A 0.5 ppb (6) N/A 10.9 μg/m3 (45) 45.0
 
Jan. 28, 2020, 3 a.m. N/A N/A N/A 34.0 ppb (31) N/A N/A N/A 0.5 ppb (6) N/A 10.5 μg/m3 (44) 44.0
 
Jan. 28, 2020, 2 a.m. N/A N/A N/A 30.0 ppb (28) N/A N/A N/A 0.5 ppb (6) N/A 9.1 μg/m3 (38) 38.0
 
Jan. 28, 2020, 1 a.m. N/A N/A N/A 25.0 ppb (23) N/A N/A N/A 0.3 ppb (3) N/A 6.5 μg/m3 (27) 27.0
 
Jan. 28, 2020, midnight N/A N/A N/A 28.0 ppb (26) N/A N/A N/A 0.3 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 27, 2020, 11 p.m. N/A N/A N/A 38.0 ppb (35) N/A N/A N/A 0.5 ppb (6) N/A 10.5 μg/m3 (44) 44.0
 
Jan. 27, 2020, 10 p.m. N/A N/A N/A 36.0 ppb (33) N/A N/A N/A 0.5 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 27, 2020, 9 p.m. N/A N/A N/A 28.0 ppb (26) N/A N/A N/A 0.4 ppb (4) N/A 7.4 μg/m3 (31) 31.0
 
Jan. 27, 2020, 8 p.m. N/A N/A N/A 27.0 ppb (25) N/A N/A N/A 0.5 ppb (6) N/A 8.4 μg/m3 (35) 35.0
 
Jan. 27, 2020, 7 p.m. N/A N/A N/A 26.0 ppb (24) N/A N/A N/A 0.4 ppb (4) N/A 7.9 μg/m3 (33) 33.0
 
Jan. 27, 2020, 6 p.m. N/A N/A N/A 29.0 ppb (27) N/A N/A N/A 0.5 ppb (6) N/A 8.3 μg/m3 (35) 35.0
 
Jan. 27, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A 0.5 ppb (6) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 27, 2020, 4 p.m. N/A N/A N/A 32.0 ppb (30) N/A N/A N/A 0.6 ppb (7) N/A 6.7 μg/m3 (28) 30.0
 
Jan. 27, 2020, 3 p.m. N/A N/A N/A 37.0 ppb (34) N/A N/A N/A N/A N/A 7.3 μg/m3 (30) 34.0
 
Jan. 27, 2020, 2 p.m. N/A N/A N/A 42.0 ppb (39) N/A N/A N/A 1.4 ppb (16) N/A 13.2 μg/m3 (53) 53.0
 
Jan. 27, 2020, 1 p.m. N/A N/A N/A 42.0 ppb (39) N/A N/A N/A 1.4 ppb (16) N/A 13.8 μg/m3 (54) 54.0
 
Jan. 27, 2020, noon N/A N/A N/A 42.0 ppb (39) N/A N/A N/A 1.2 ppb (13) N/A 12.4 μg/m3 (51) 51.0
 
Jan. 27, 2020, 11 a.m. N/A N/A N/A 41.0 ppb (38) N/A N/A N/A 0.9 ppb (10) N/A 12.1 μg/m3 (50) 50.0
 
Jan. 27, 2020, 10 a.m. N/A N/A N/A 39.0 ppb (36) N/A N/A N/A 1.0 ppb (11) N/A 10.5 μg/m3 (44) 44.0
 
Jan. 27, 2020, 9 a.m. N/A N/A N/A 38.0 ppb (35) N/A N/A N/A 1.0 ppb (11) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 27, 2020, 8 a.m. N/A N/A N/A 37.0 ppb (34) N/A N/A N/A 0.6 ppb (7) N/A 6.8 μg/m3 (28) 34.0
 
Jan. 27, 2020, 7 a.m. N/A N/A N/A 39.0 ppb (36) N/A N/A N/A 0.6 ppb (7) N/A 7.1 μg/m3 (30) 36.0
 
Jan. 27, 2020, 6 a.m. N/A N/A N/A 39.0 ppb (36) N/A N/A N/A 0.6 ppb (7) N/A 8.6 μg/m3 (36) 36.0
 
Jan. 27, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) N/A 7.7 μg/m3 (32) 32.0
 
Jan. 27, 2020, 4 a.m. N/A N/A N/A 42.0 ppb (39) N/A N/A N/A 0.7 ppb (8) N/A 8.7 μg/m3 (36) 39.0
 
Jan. 27, 2020, 3 a.m. N/A N/A N/A 45.0 ppb (42) N/A N/A N/A 1.2 ppb (13) N/A 12.5 μg/m3 (51) 51.0
 
Jan. 27, 2020, 2 a.m. N/A N/A N/A 46.0 ppb (43) N/A N/A N/A 0.8 ppb (9) N/A 9.2 μg/m3 (38) 43.0
 
Jan. 27, 2020, 1 a.m. N/A N/A N/A 39.0 ppb (36) N/A N/A N/A 0.5 ppb (6) N/A 6.6 μg/m3 (28) 36.0
 
Jan. 27, 2020, midnight N/A N/A N/A 33.0 ppb (31) N/A N/A N/A 0.4 ppb (4) N/A 5.6 μg/m3 (23) 31.0
 
Jan. 26, 2020, 11 p.m. N/A N/A N/A 28.0 ppb (26) N/A N/A N/A 0.5 ppb (6) N/A 4.6 μg/m3 (19) 26.0
 
Jan. 26, 2020, 10 p.m. N/A N/A N/A 14.0 ppb (13) N/A N/A N/A 0.3 ppb (3) N/A 3.3 μg/m3 (14) 14.0
 
Jan. 26, 2020, 9 p.m. N/A N/A N/A 13.0 ppb (12) N/A N/A N/A 0.2 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
Jan. 26, 2020, 8 p.m. N/A N/A N/A 13.0 ppb (12) N/A N/A N/A 0.3 ppb (3) N/A 3.0 μg/m3 (12) 12.0
 
Jan. 26, 2020, 7 p.m. N/A N/A N/A 15.0 ppb (14) N/A N/A N/A 0.4 ppb (4) N/A 2.7 μg/m3 (11) 14.0
 
Jan. 26, 2020, 6 p.m. N/A N/A N/A 12.0 ppb (11) N/A N/A N/A 0.2 ppb (2) N/A 2.2 μg/m3 (9) 11.0
 
Jan. 26, 2020, 5 p.m. N/A N/A N/A 18.0 ppb (17) N/A N/A N/A 0.3 ppb (3) N/A 3.4 μg/m3 (14) 17.0
 
Jan. 26, 2020, 4 p.m. N/A N/A N/A 24.0 ppb (22) N/A N/A N/A 0.3 ppb (3) N/A 3.7 μg/m3 (15) 22.0
 
Jan. 26, 2020, 3 p.m. N/A N/A N/A 27.0 ppb (25) N/A N/A N/A 0.3 ppb (3) N/A 3.2 μg/m3 (13) 25.0
 
Jan. 26, 2020, 2 p.m. N/A N/A N/A 29.0 ppb (27) N/A N/A N/A 0.3 ppb (3) N/A 2.4 μg/m3 (10) 27.0
 
Jan. 26, 2020, 1 p.m. N/A N/A N/A 30.0 ppb (28) N/A N/A N/A 0.3 ppb (3) N/A 2.0 μg/m3 (8) 28.0
 
Jan. 26, 2020, noon N/A N/A N/A 24.0 ppb (22) N/A N/A N/A 0.2 ppb (2) N/A 1.9 μg/m3 (8) 22.0
 
Jan. 26, 2020, 11 a.m. N/A N/A N/A 26.0 ppb (24) N/A N/A N/A 0.3 ppb (3) N/A 2.7 μg/m3 (11) 24.0
 
Jan. 26, 2020, 10 a.m. N/A N/A N/A 31.0 ppb (29) N/A N/A N/A 0.3 ppb (3) N/A 3.6 μg/m3 (15) 29.0
 
Jan. 26, 2020, 9 a.m. N/A N/A N/A 29.0 ppb (27) N/A N/A N/A 0.4 ppb (4) N/A 4.3 μg/m3 (18) 27.0
 
Jan. 26, 2020, 8 a.m. N/A N/A N/A 35.0 ppb (32) N/A N/A N/A 0.5 ppb (6) N/A 6.9 μg/m3 (29) 32.0
 
Jan. 26, 2020, 7 a.m. N/A N/A N/A 39.0 ppb (36) N/A N/A N/A 0.8 ppb (9) N/A 10.3 μg/m3 (43) 43.0
 
Jan. 26, 2020, 6 a.m. N/A N/A N/A 40.0 ppb (37) N/A N/A N/A 1.1 ppb (12) N/A 13.1 μg/m3 (52) 52.0
 
Jan. 26, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A 1.6 ppb (18) N/A 14.8 μg/m3 (56) 56.0
 
Jan. 26, 2020, 4 a.m. N/A N/A N/A 41.0 ppb (38) N/A N/A N/A 1.4 ppb (16) N/A 14.0 μg/m3 (54) 54.0
 
Jan. 26, 2020, 3 a.m. N/A N/A N/A 41.0 ppb (38) N/A N/A N/A N/A N/A 12.6 μg/m3 (51) 51.0
 
Jan. 26, 2020, 2 a.m. N/A N/A N/A 44.0 ppb (41) N/A N/A N/A N/A N/A 8.1 μg/m3 (34) 41.0
 
Jan. 26, 2020, 1 a.m. N/A N/A N/A 33.0 ppb (31) N/A N/A N/A N/A N/A 11.1 μg/m3 (46) 46.0
 
Jan. 26, 2020, midnight N/A N/A N/A 27.0 ppb (25) N/A N/A N/A 0.0 ppb (0) N/A 16.8 μg/m3 (60) 60.0
 
Jan. 25, 2020, 11 p.m. N/A N/A N/A 19.0 ppb (18) N/A N/A N/A 0.0 ppb (0) N/A 2.2 μg/m3 (9) 18.0
 
Jan. 25, 2020, 10 p.m. N/A N/A N/A 14.0 ppb (13) N/A N/A N/A N/A N/A 1.5 μg/m3 (6) 13.0
 
Jan. 25, 2020, 9 p.m. N/A N/A N/A 13.0 ppb (12) N/A N/A N/A 0.0 ppb (0) N/A 1.9 μg/m3 (8) 12.0
 
Jan. 25, 2020, 8 p.m. N/A N/A N/A 13.0 ppb (12) N/A N/A N/A 0.0 ppb (0) N/A 2.7 μg/m3 (11) 12.0
 
Jan. 25, 2020, 7 p.m. N/A N/A N/A 19.0 ppb (18) N/A N/A N/A 0.0 ppb (0) N/A 4.6 μg/m3 (19) 19.0
 
Jan. 25, 2020, 6 p.m. N/A N/A N/A 18.0 ppb (17) N/A N/A N/A 0.0 ppb (0) N/A 21.7 μg/m3 (71) 71.0
 
Jan. 25, 2020, 5 p.m. N/A N/A N/A 18.0 ppb (17) N/A N/A N/A 0.0 ppb (0) N/A 9.6 μg/m3 (40) 40.0
 
Jan. 25, 2020, 4 p.m. N/A N/A N/A 27.0 ppb (25) N/A N/A N/A 0.0 ppb (0) N/A 9.5 μg/m3 (40) 40.0
 
Jan. 25, 2020, 3 p.m. N/A N/A N/A 36.0 ppb (33) N/A N/A N/A 1.2 ppb (13) N/A 11.9 μg/m3 (50) 50.0
 
Jan. 25, 2020, 2 p.m. N/A N/A N/A 38.0 ppb (35) N/A N/A N/A 1.2 ppb (13) N/A 13.7 μg/m3 (54) 54.0
 
Jan. 25, 2020, 1 p.m. N/A N/A N/A 38.0 ppb (35) N/A N/A N/A 1.2 ppb (13) N/A 13.2 μg/m3 (53) 53.0
 
Jan. 25, 2020, noon N/A N/A N/A 36.0 ppb (33) N/A N/A N/A 1.1 ppb (12) N/A 10.9 μg/m3 (45) 45.0
 
Jan. 25, 2020, 11 a.m. N/A N/A N/A 35.0 ppb (32) N/A N/A N/A 0.8 ppb (9) N/A 9.3 μg/m3 (39) 39.0
 
Jan. 25, 2020, 10 a.m. N/A N/A N/A 35.0 ppb (32) N/A N/A N/A 0.8 ppb (9) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 25, 2020, 9 a.m. N/A N/A N/A 35.0 ppb (32) N/A N/A N/A 0.6 ppb (7) N/A 7.1 μg/m3 (30) 32.0
 
Jan. 25, 2020, 8 a.m. N/A N/A N/A 35.0 ppb (32) N/A N/A N/A 0.4 ppb (4) N/A 5.2 μg/m3 (22) 32.0
 
Jan. 25, 2020, 7 a.m. N/A N/A N/A 35.0 ppb (32) N/A N/A N/A 0.5 ppb (6) N/A 7.4 μg/m3 (31) 32.0
 
Jan. 25, 2020, 6 a.m. N/A N/A N/A 39.0 ppb (36) N/A N/A N/A 0.9 ppb (10) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 25, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A 1.4 ppb (16) N/A 21.7 μg/m3 (71) 71.0
 
Jan. 25, 2020, 4 a.m. N/A N/A N/A 45.0 ppb (42) N/A N/A N/A 1.1 ppb (12) N/A 19.9 μg/m3 (67) 67.0
 
Jan. 25, 2020, 3 a.m. N/A N/A N/A 45.0 ppb (42) N/A N/A N/A 1.0 ppb (11) N/A 18.2 μg/m3 (63) 63.0
 
Jan. 25, 2020, 2 a.m. N/A N/A N/A 36.0 ppb (33) N/A N/A N/A 0.4 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 25, 2020, 1 a.m. N/A N/A N/A 50.0 ppb (46) N/A N/A N/A 0.7 ppb (8) N/A 19.7 μg/m3 (66) 66.0
 
Jan. 25, 2020, midnight N/A N/A N/A 43.0 ppb (40) N/A N/A N/A 0.7 ppb (8) N/A 9.3 μg/m3 (39) 40.0
 
Jan. 24, 2020, 11 p.m. N/A N/A N/A 33.0 ppb (31) N/A N/A N/A 0.5 ppb (6) N/A 5.3 μg/m3 (22) 31.0
 
Jan. 24, 2020, 10 p.m. N/A N/A N/A 24.0 ppb (22) N/A N/A N/A 0.3 ppb (3) N/A 4.2 μg/m3 (18) 22.0
 
Jan. 24, 2020, 9 p.m. N/A N/A N/A 22.0 ppb (20) N/A N/A N/A 0.4 ppb (4) N/A 4.4 μg/m3 (18) 20.0
 
Jan. 24, 2020, 8 p.m. N/A N/A N/A 18.0 ppb (17) N/A N/A N/A 0.4 ppb (4) N/A 3.4 μg/m3 (14) 17.0
 
Jan. 24, 2020, 7 p.m. N/A N/A N/A 15.0 ppb (14) N/A N/A N/A 0.3 ppb (3) N/A 3.5 μg/m3 (15) 15.0
 
Jan. 24, 2020, 6 p.m. N/A N/A N/A 16.0 ppb (15) N/A N/A N/A 0.3 ppb (3) N/A 3.2 μg/m3 (13) 15.0
 
Jan. 24, 2020, 5 p.m. N/A N/A N/A 21.0 ppb (19) N/A N/A N/A 0.3 ppb (3) N/A 4.3 μg/m3 (18) 19.0
 
Jan. 24, 2020, 4 p.m. N/A N/A N/A 37.0 ppb (34) N/A N/A N/A 0.6 ppb (7) N/A 8.6 μg/m3 (36) 36.0
 
Jan. 24, 2020, 3 p.m. N/A N/A N/A 47.0 ppb (44) N/A N/A N/A 1.6 ppb (18) N/A 12.5 μg/m3 (51) 51.0
 
Jan. 24, 2020, 2 p.m. N/A N/A N/A 47.0 ppb (44) N/A N/A N/A 2.0 ppb (22) N/A 14.6 μg/m3 (56) 56.0
 
Jan. 24, 2020, 1 p.m. N/A N/A N/A 45.0 ppb (42) N/A N/A N/A 1.8 ppb (20) N/A 13.1 μg/m3 (52) 52.0
 
Jan. 24, 2020, noon N/A N/A N/A 40.0 ppb (37) N/A N/A N/A 1.1 ppb (12) N/A 9.6 μg/m3 (40) 40.0
 
Jan. 24, 2020, 11 a.m. N/A N/A N/A 38.0 ppb (35) N/A N/A N/A 0.8 ppb (9) N/A 8.3 μg/m3 (35) 35.0
 
Jan. 24, 2020, 10 a.m. N/A N/A N/A 37.0 ppb (34) N/A N/A N/A 0.7 ppb (8) N/A 7.9 μg/m3 (33) 34.0
 
Jan. 24, 2020, 9 a.m. N/A N/A N/A 37.0 ppb (34) N/A N/A N/A 0.5 ppb (6) N/A 5.0 μg/m3 (21) 34.0
 
Jan. 24, 2020, 8 a.m. N/A N/A N/A 34.0 ppb (31) N/A N/A N/A 0.3 ppb (3) N/A 3.9 μg/m3 (16) 31.0
 
Jan. 24, 2020, 7 a.m. N/A N/A N/A 31.0 ppb (29) N/A N/A N/A 0.3 ppb (3) N/A 3.8 μg/m3 (16) 29.0
 
Jan. 24, 2020, 6 a.m. N/A N/A N/A 32.0 ppb (30) N/A N/A N/A 0.4 ppb (4) N/A 6.9 μg/m3 (29) 30.0
 
Jan. 24, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 24, 2020, 4 a.m. N/A N/A N/A 36.0 ppb (33) N/A N/A N/A 0.5 ppb (6) N/A 7.7 μg/m3 (32) 33.0
 
Jan. 24, 2020, 3 a.m. N/A N/A N/A 41.0 ppb (38) N/A N/A N/A 0.1 ppb (1) N/A 7.9 μg/m3 (33) 38.0
 
Jan. 24, 2020, 2 a.m. N/A N/A N/A 46.0 ppb (43) N/A N/A N/A 0.3 ppb (3) N/A 9.1 μg/m3 (38) 43.0
 
Jan. 24, 2020, 1 a.m. N/A N/A N/A 38.0 ppb (35) N/A N/A N/A N/A N/A 6.2 μg/m3 (26) 35.0
 
Jan. 24, 2020, midnight N/A N/A N/A 26.0 ppb (24) N/A N/A N/A N/A N/A 4.6 μg/m3 (19) 24.0
 
Jan. 23, 2020, 11 p.m. N/A N/A N/A 18.0 ppb (17) N/A N/A N/A N/A N/A 4.9 μg/m3 (20) 20.0
 
Jan. 23, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.7 μg/m3 (20) 20.0
 
Jan. 23, 2020, 9 p.m. N/A N/A N/A 13.0 ppb (12) N/A N/A N/A 0.3 ppb (3) N/A 6.6 μg/m3 (28) 28.0
 
Jan. 23, 2020, 8 p.m. N/A N/A N/A 14.0 ppb (13) N/A N/A N/A 0.3 ppb (3) N/A 5.6 μg/m3 (23) 23.0
 
Jan. 23, 2020, 7 p.m. N/A N/A N/A 10.0 ppb (9) N/A N/A N/A 0.3 ppb (3) N/A 4.1 μg/m3 (17) 17.0
 
Jan. 23, 2020, 6 p.m. N/A N/A N/A 15.0 ppb (14) N/A N/A N/A 0.3 ppb (3) N/A N/A 14.0
 
Jan. 23, 2020, 5 p.m. N/A N/A N/A 21.0 ppb (19) N/A N/A N/A 0.4 ppb (4) N/A 4.3 μg/m3 (18) 19.0
 
Jan. 23, 2020, 4 p.m. N/A N/A N/A 31.0 ppb (29) N/A N/A N/A 0.4 ppb (4) N/A 3.9 μg/m3 (16) 29.0
 
Jan. 23, 2020, 3 p.m. N/A N/A N/A 41.0 ppb (38) N/A N/A N/A 0.7 ppb (8) N/A 5.4 μg/m3 (23) 38.0
 
Jan. 23, 2020, 2 p.m. N/A N/A N/A 43.0 ppb (40) N/A N/A N/A 0.6 ppb (7) N/A 7.4 μg/m3 (31) 40.0
 
Jan. 23, 2020, 1 p.m. N/A N/A N/A 30.0 ppb (28) N/A N/A N/A 0.4 ppb (4) N/A 2.9 μg/m3 (12) 28.0
 
Jan. 23, 2020, noon N/A N/A N/A 27.0 ppb (25) N/A N/A N/A 0.3 ppb (3) N/A 1.6 μg/m3 (7) 25.0
 
Jan. 23, 2020, 11 a.m. N/A N/A N/A 48.0 ppb (44) N/A N/A N/A 0.3 ppb (3) N/A 3.0 μg/m3 (12) 44.0
 
Jan. 23, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (2) N/A 2.9 μg/m3 (12) 12.0
 
Jan. 23, 2020, 9 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.1 ppb (1) N/A 0.8 μg/m3 (3) 3.0
 
Jan. 23, 2020, 8 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.1 ppb (1) N/A 0.9 μg/m3 (4) 4.0
 
Jan. 23, 2020, 7 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A N/A 0.2 ppb (2) N/A 1.1 μg/m3 (5) 6.0
 
Jan. 23, 2020, 6 a.m. N/A N/A N/A 13.0 ppb (12) N/A N/A N/A 0.2 ppb (2) N/A 2.5 μg/m3 (10) 12.0
 
Jan. 23, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A 0.4 ppb (4) N/A 4.5 μg/m3 (19) 19.0
 
Jan. 23, 2020, 4 a.m. N/A N/A N/A 11.0 ppb (10) N/A N/A N/A 0.2 ppb (2) N/A 3.2 μg/m3 (13) 13.0
 
Jan. 23, 2020, 3 a.m. N/A N/A N/A 12.0 ppb (11) N/A N/A N/A 0.2 ppb (2) N/A 3.6 μg/m3 (15) 15.0
 
Jan. 23, 2020, 2 a.m. N/A N/A N/A 9.0 ppb (8) N/A N/A N/A 0.3 ppb (3) N/A 2.5 μg/m3 (10) 10.0
 
Jan. 23, 2020, 1 a.m. N/A N/A N/A 10.0 ppb (9) N/A N/A N/A 0.3 ppb (3) N/A 1.7 μg/m3 (7) 9.0
 
Jan. 23, 2020, midnight N/A N/A N/A 20.0 ppb (19) N/A N/A N/A 0.5 ppb (6) N/A 1.9 μg/m3 (8) 19.0
 
Jan. 22, 2020, 11 p.m. N/A N/A N/A 24.0 ppb (22) N/A N/A N/A 0.6 ppb (7) N/A 2.0 μg/m3 (8) 22.0
 
Jan. 22, 2020, 10 p.m. N/A N/A N/A 18.0 ppb (17) N/A N/A N/A 0.4 ppb (4) N/A 3.3 μg/m3 (14) 17.0
 
Jan. 22, 2020, 9 p.m. N/A N/A N/A 14.0 ppb (13) N/A N/A N/A 0.3 ppb (3) N/A 5.5 μg/m3 (23) 23.0
 
Jan. 22, 2020, 8 p.m. N/A N/A N/A 12.0 ppb (11) N/A N/A N/A 0.3 ppb (3) N/A 5.4 μg/m3 (23) 23.0
 
Jan. 22, 2020, 7 p.m. N/A N/A N/A 14.0 ppb (13) N/A N/A N/A 0.3 ppb (3) N/A 3.1 μg/m3 (13) 13.0
 
Jan. 22, 2020, 6 p.m. N/A N/A N/A 15.0 ppb (14) N/A N/A N/A 0.3 ppb (3) N/A 4.5 μg/m3 (19) 19.0
 
Jan. 22, 2020, 5 p.m. N/A N/A N/A 19.0 ppb (18) N/A N/A N/A 0.4 ppb (4) N/A 2.7 μg/m3 (11) 18.0
 
Jan. 22, 2020, 4 p.m. N/A N/A N/A 23.0 ppb (21) N/A N/A N/A 0.4 ppb (4) N/A 3.9 μg/m3 (16) 21.0
 
Jan. 22, 2020, 3 p.m. N/A N/A N/A 26.0 ppb (24) N/A N/A N/A 0.6 ppb (7) N/A 5.1 μg/m3 (21) 24.0
 
Jan. 22, 2020, 2 p.m. N/A N/A N/A 22.0 ppb (20) N/A N/A N/A 0.5 ppb (6) N/A 2.9 μg/m3 (12) 20.0
 
Jan. 22, 2020, 1 p.m. N/A N/A N/A 22.0 ppb (20) N/A N/A N/A 0.5 ppb (6) N/A 3.1 μg/m3 (13) 20.0
 
Jan. 22, 2020, noon N/A N/A N/A 22.0 ppb (20) N/A N/A N/A 0.5 ppb (6) N/A 3.0 μg/m3 (12) 20.0
 
Jan. 22, 2020, 11 a.m. N/A N/A N/A 10.0 ppb (9) N/A N/A N/A 0.2 ppb (2) N/A 1.5 μg/m3 (6) 9.0
 
Jan. 22, 2020, 10 a.m. N/A N/A N/A 34.0 ppb (31) N/A N/A N/A 0.5 ppb (6) N/A 9.4 μg/m3 (39) 39.0
 
Jan. 22, 2020, 9 a.m. N/A N/A N/A 42.0 ppb (39) N/A N/A N/A 1.1 ppb (12) N/A 18.4 μg/m3 (64) 64.0
 
Jan. 22, 2020, 8 a.m. N/A N/A N/A 44.0 ppb (41) N/A N/A N/A 1.3 ppb (14) N/A 23.4 μg/m3 (74) 74.0
 
Jan. 22, 2020, 7 a.m. N/A N/A N/A 48.0 ppb (44) N/A N/A N/A 1.5 ppb (17) N/A 27.8 μg/m3 (84) 84.0
 
Jan. 22, 2020, 6 a.m. N/A N/A N/A 50.0 ppb (46) N/A N/A N/A 1.4 ppb (16) N/A 28.6 μg/m3 (85) 85.0
 
Jan. 22, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A 1.7 ppb (19) N/A 31.2 μg/m3 (91) 91.0
 
Jan. 22, 2020, 4 a.m. N/A N/A N/A 50.0 ppb (46) N/A N/A N/A 1.5 ppb (17) N/A 32.0 μg/m3 (93) 93.0
 
Jan. 22, 2020, 3 a.m. N/A N/A N/A 49.0 ppb (45) N/A N/A N/A 1.5 ppb (17) N/A 30.0 μg/m3 (88) 88.0
 
Jan. 22, 2020, 2 a.m. N/A N/A N/A 48.0 ppb (44) N/A N/A N/A 1.1 ppb (12) N/A 26.7 μg/m3 (81) 81.0
 
Jan. 22, 2020, 1 a.m. N/A N/A N/A 50.0 ppb (46) N/A N/A N/A 0.8 ppb (9) N/A 24.6 μg/m3 (77) 77.0
 
Jan. 22, 2020, midnight N/A N/A N/A 54.0 ppb (50) N/A N/A N/A 0.9 ppb (10) N/A 22.7 μg/m3 (73) 73.0
 
Jan. 21, 2020, 11 p.m. N/A N/A N/A 64.0 ppb (61) N/A N/A N/A 1.2 ppb (13) N/A 33.0 μg/m3 (95) 95.0
 
Jan. 21, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A 1.2 ppb (13) N/A 33.6 μg/m3 (96) 96.0
 
Jan. 21, 2020, 9 p.m. N/A N/A N/A 57.0 ppb (53) N/A N/A N/A 1.0 ppb (11) N/A 25.3 μg/m3 (78) 78.0
 
Jan. 21, 2020, 8 p.m. N/A N/A N/A 59.0 ppb (55) N/A N/A N/A 1.2 ppb (13) N/A 30.4 μg/m3 (89) 89.0
 
Jan. 21, 2020, 7 p.m. N/A N/A N/A 72.0 ppb (69) N/A N/A N/A N/A N/A 42.3 μg/m3 (117) 117.0
 
Jan. 21, 2020, 6 p.m. N/A N/A N/A 68.0 ppb (65) N/A N/A N/A 1.6 ppb (18) N/A 34.4 μg/m3 (98) 98.0
 
Jan. 21, 2020, 5 p.m. N/A N/A N/A 55.0 ppb (51) N/A N/A N/A 1.4 ppb (16) N/A 26.0 μg/m3 (80) 80.0
 
Jan. 21, 2020, 4 p.m. N/A N/A N/A 50.0 ppb (46) N/A N/A N/A 1.3 ppb (14) N/A 21.7 μg/m3 (71) 71.0
 
Jan. 21, 2020, 3 p.m. N/A N/A N/A 51.0 ppb (47) N/A N/A N/A 1.7 ppb (19) N/A 19.3 μg/m3 (66) 66.0