ID: 1523

AQSQID: 261630015

Site Name: Detroit - Southwest

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

Updated: Feb. 26, 2021, 4:32 p.m.

Location: Detroit (Fort St W), MI

Reporting: True, Located: True

Current AQI: 55.0

Detroit (Fort St W) MI, US: 42.3042, -83.1072

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Feb. 26, 2021, 3 p.m. N/A N/A N/A 10.0 ppb (10) N/A 2.0 ppb (3) N/A N/A N/A 13.6 μg/m3 (55) 55.0
 
Feb. 26, 2021, 2 p.m. N/A N/A N/A 11.0 ppb (11) N/A 2.0 ppb (3) N/A N/A N/A 12.7 μg/m3 (53) 53.0
 
Feb. 26, 2021, 1 p.m. N/A N/A N/A 20.0 ppb (19) N/A 2.0 ppb (3) N/A N/A N/A 15.3 μg/m3 (58) 58.0
 
Feb. 26, 2021, noon N/A N/A N/A 28.0 ppb (27) N/A 2.0 ppb (3) N/A N/A N/A 18.7 μg/m3 (65) 65.0
 
Feb. 26, 2021, 11 a.m. N/A N/A N/A 26.0 ppb (25) N/A 2.0 ppb (3) N/A N/A N/A 18.4 μg/m3 (65) 65.0
 
Feb. 26, 2021, 10 a.m. N/A N/A N/A 26.0 ppb (25) N/A 2.0 ppb (3) N/A N/A N/A 15.2 μg/m3 (58) 58.0
 
Feb. 26, 2021, 9 a.m. N/A N/A N/A 28.0 ppb (27) N/A 2.0 ppb (3) N/A N/A N/A 12.4 μg/m3 (52) 52.0
 
Feb. 26, 2021, 8 a.m. N/A N/A N/A 36.0 ppb (34) N/A 2.0 ppb (3) N/A N/A N/A 11.9 μg/m3 (50) 50.0
 
Feb. 26, 2021, 7 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
Feb. 26, 2021, 6 a.m. N/A N/A N/A 20.0 ppb (19) N/A 2.0 ppb (3) N/A N/A N/A 11.3 μg/m3 (48) 48.0
 
Feb. 26, 2021, 5 a.m. N/A N/A N/A 15.0 ppb (15) N/A N/A N/A N/A N/A 10.3 μg/m3 (43) 43.0
 
Feb. 26, 2021, 4 a.m. N/A N/A N/A 14.0 ppb (14) N/A 2.0 ppb (3) N/A N/A N/A 10.1 μg/m3 (43) 43.0
 
Feb. 26, 2021, 3 a.m. N/A N/A N/A 10.0 ppb (10) N/A 2.0 ppb (3) N/A N/A N/A 9.6 μg/m3 (40) 40.0
 
Feb. 26, 2021, 2 a.m. N/A N/A N/A 12.0 ppb (12) N/A 2.0 ppb (3) N/A N/A N/A 10.9 μg/m3 (46) 46.0
 
Feb. 26, 2021, 1 a.m. N/A N/A N/A 10.0 ppb (10) N/A 2.0 ppb (3) N/A N/A N/A 9.1 μg/m3 (38) 38.0
 
Feb. 26, 2021, midnight N/A N/A N/A 16.0 ppb (16) N/A 3.0 ppb (5) N/A N/A N/A 9.6 μg/m3 (40) 40.0
 
Feb. 25, 2021, 11 p.m. N/A N/A N/A 13.0 ppb (13) N/A 3.0 ppb (5) N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Feb. 25, 2021, 10 p.m. N/A N/A N/A 10.0 ppb (10) N/A 2.0 ppb (3) N/A N/A N/A 8.8 μg/m3 (37) 37.0
 
Feb. 25, 2021, 9 p.m. N/A N/A N/A 9.0 ppb (9) N/A 2.0 ppb (3) N/A N/A N/A 7.6 μg/m3 (32) 32.0
 
Feb. 25, 2021, 8 p.m. N/A N/A N/A 8.0 ppb (8) N/A 3.0 ppb (5) N/A N/A N/A 7.2 μg/m3 (31) 31.0
 
Feb. 25, 2021, 7 p.m. N/A N/A N/A 6.0 ppb (6) N/A 3.0 ppb (5) N/A N/A N/A 5.8 μg/m3 (25) 25.0
 
Feb. 25, 2021, 6 p.m. N/A N/A N/A 6.0 ppb (6) N/A 2.0 ppb (3) N/A N/A N/A 4.8 μg/m3 (20) 20.0
 
Feb. 25, 2021, 5 p.m. N/A N/A N/A 8.0 ppb (8) N/A 3.0 ppb (5) N/A N/A N/A 4.7 μg/m3 (20) 20.0
 
Feb. 25, 2021, 4 p.m. N/A N/A N/A 12.0 ppb (12) N/A 5.0 ppb (8) N/A N/A N/A N/A 12.0
 
Feb. 25, 2021, 3 p.m. N/A N/A N/A 16.0 ppb (16) N/A 5.0 ppb (8) N/A N/A N/A 8.9 μg/m3 (38) 38.0
 
Feb. 25, 2021, 2 p.m. N/A N/A N/A 17.0 ppb (17) N/A 3.0 ppb (5) N/A N/A N/A 9.1 μg/m3 (38) 38.0
 
Feb. 25, 2021, 1 p.m. N/A N/A N/A 25.0 ppb (24) N/A 2.0 ppb (3) N/A N/A N/A 7.2 μg/m3 (31) 31.0
 
Feb. 25, 2021, noon N/A N/A N/A 38.0 ppb (36) N/A 2.0 ppb (3) N/A N/A N/A 22.1 μg/m3 (73) 73.0
 
Feb. 25, 2021, 11 a.m. N/A N/A N/A 30.0 ppb (29) N/A 2.0 ppb (3) N/A N/A N/A 23.8 μg/m3 (76) 76.0
 
Feb. 25, 2021, 10 a.m. N/A N/A N/A 23.0 ppb (22) N/A 2.0 ppb (3) N/A N/A N/A 5.4 μg/m3 (23) 23.0
 
Feb. 25, 2021, 9 a.m. N/A N/A N/A 28.0 ppb (27) N/A 2.0 ppb (3) N/A N/A N/A 5.0 μg/m3 (21) 27.0
 
Feb. 25, 2021, 8 a.m. N/A N/A N/A 13.0 ppb (13) N/A 2.0 ppb (3) N/A N/A N/A 4.5 μg/m3 (19) 19.0
 
Feb. 25, 2021, 7 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 4.6 μg/m3 (20) 20.0
 
Feb. 25, 2021, 6 a.m. N/A N/A N/A 18.0 ppb (17) N/A 2.0 ppb (3) N/A N/A N/A 6.4 μg/m3 (27) 27.0
 
Feb. 25, 2021, 5 a.m. N/A N/A N/A 13.0 ppb (13) N/A N/A N/A N/A N/A 5.9 μg/m3 (25) 25.0
 
Feb. 25, 2021, 4 a.m. N/A N/A N/A 16.0 ppb (16) N/A 2.0 ppb (3) N/A N/A N/A 4.5 μg/m3 (19) 19.0
 
Feb. 25, 2021, 3 a.m. N/A N/A N/A 16.0 ppb (16) N/A 2.0 ppb (3) N/A N/A N/A 4.3 μg/m3 (18) 18.0
 
Feb. 25, 2021, 2 a.m. N/A N/A N/A 9.0 ppb (9) N/A 2.0 ppb (3) N/A N/A N/A 3.9 μg/m3 (17) 17.0
 
Feb. 25, 2021, 1 a.m. N/A N/A N/A 7.0 ppb (7) N/A 2.0 ppb (3) N/A N/A N/A 3.8 μg/m3 (16) 16.0
 
Feb. 25, 2021, midnight N/A N/A N/A 8.0 ppb (8) N/A 2.0 ppb (3) N/A N/A N/A 5.8 μg/m3 (25) 25.0
 
Feb. 24, 2021, 11 p.m. N/A N/A N/A 9.0 ppb (9) N/A 3.0 ppb (5) N/A N/A N/A 12.3 μg/m3 (52) 52.0
 
Feb. 24, 2021, 10 p.m. N/A N/A N/A 10.0 ppb (10) N/A 2.0 ppb (3) N/A N/A N/A 18.1 μg/m3 (64) 64.0
 
Feb. 24, 2021, 9 p.m. N/A N/A N/A 7.0 ppb (7) N/A 3.0 ppb (5) N/A N/A N/A 15.2 μg/m3 (58) 58.0
 
Feb. 24, 2021, 8 p.m. N/A N/A N/A 8.0 ppb (8) N/A 3.0 ppb (5) N/A N/A N/A 11.9 μg/m3 (50) 50.0
 
Feb. 24, 2021, 7 p.m. N/A N/A N/A 11.0 ppb (11) N/A 3.0 ppb (5) N/A N/A N/A 11.2 μg/m3 (47) 47.0
 
Feb. 24, 2021, 6 p.m. N/A N/A N/A 12.0 ppb (12) N/A 3.0 ppb (5) N/A N/A N/A 11.6 μg/m3 (49) 49.0
 
Feb. 24, 2021, 5 p.m. N/A N/A N/A 12.0 ppb (12) N/A 4.0 ppb (6) N/A N/A N/A 9.7 μg/m3 (41) 41.0
 
Feb. 24, 2021, 4 p.m. N/A N/A N/A 13.0 ppb (13) N/A 4.0 ppb (6) N/A N/A N/A 8.9 μg/m3 (38) 38.0
 
Feb. 24, 2021, 3 p.m. N/A N/A N/A 12.0 ppb (12) N/A 5.0 ppb (8) N/A N/A N/A 7.5 μg/m3 (32) 32.0
 
Feb. 24, 2021, 2 p.m. N/A N/A N/A 16.0 ppb (16) N/A 8.0 ppb (12) N/A N/A N/A 8.0 μg/m3 (34) 34.0
 
Feb. 24, 2021, 1 p.m. N/A N/A N/A 14.0 ppb (14) N/A 15.0 ppb (22) N/A N/A N/A 7.6 μg/m3 (32) 32.0
 
Feb. 24, 2021, noon N/A N/A N/A 19.0 ppb (18) N/A 7.0 ppb (10) N/A N/A N/A 7.8 μg/m3 (33) 33.0
 
Feb. 24, 2021, 11 a.m. N/A N/A N/A 12.0 ppb (12) N/A 2.0 ppb (3) N/A N/A N/A 10.5 μg/m3 (44) 44.0
 
Feb. 24, 2021, 10 a.m. N/A N/A N/A 9.0 ppb (9) N/A 2.0 ppb (3) N/A N/A N/A 13.7 μg/m3 (55) 55.0
 
Feb. 24, 2021, 9 a.m. N/A N/A N/A 10.0 ppb (10) N/A 2.0 ppb (3) N/A N/A N/A 16.5 μg/m3 (61) 61.0
 
Feb. 24, 2021, 8 a.m. N/A N/A N/A 13.0 ppb (13) N/A 2.0 ppb (3) N/A N/A N/A 20.1 μg/m3 (68) 68.0
 
Feb. 24, 2021, 7 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 17.3 μg/m3 (62) 62.0
 
Feb. 24, 2021, 6 a.m. N/A N/A N/A 14.0 ppb (14) N/A 2.0 ppb (3) N/A N/A N/A 17.6 μg/m3 (63) 63.0
 
Feb. 24, 2021, 5 a.m. N/A N/A N/A 14.0 ppb (14) N/A N/A N/A N/A N/A 18.0 μg/m3 (64) 64.0
 
Feb. 24, 2021, 4 a.m. N/A N/A N/A 15.0 ppb (15) N/A 2.0 ppb (3) N/A N/A N/A 19.8 μg/m3 (68) 68.0
 
Feb. 24, 2021, 3 a.m. N/A N/A N/A 14.0 ppb (14) N/A 3.0 ppb (5) N/A N/A N/A 17.1 μg/m3 (62) 62.0
 
Feb. 24, 2021, 2 a.m. N/A N/A N/A 16.0 ppb (16) N/A 3.0 ppb (5) N/A N/A N/A 9.7 μg/m3 (41) 41.0
 
Feb. 24, 2021, 1 a.m. N/A N/A N/A 20.0 ppb (19) N/A 2.0 ppb (3) N/A N/A N/A 6.5 μg/m3 (28) 28.0
 
Feb. 24, 2021, midnight N/A N/A N/A 26.0 ppb (25) N/A 3.0 ppb (5) N/A N/A N/A 6.4 μg/m3 (27) 27.0
 
Feb. 23, 2021, 11 p.m. N/A N/A N/A 20.0 ppb (19) N/A 3.0 ppb (5) N/A N/A N/A 4.9 μg/m3 (21) 21.0
 
Feb. 23, 2021, 10 p.m. N/A N/A N/A 12.0 ppb (12) N/A 3.0 ppb (5) N/A N/A N/A 4.3 μg/m3 (18) 18.0
 
Feb. 23, 2021, 9 p.m. N/A N/A N/A 6.0 ppb (6) N/A 2.0 ppb (3) N/A N/A N/A 3.4 μg/m3 (15) 15.0
 
Feb. 23, 2021, 8 p.m. N/A N/A N/A 7.0 ppb (7) N/A 3.0 ppb (5) N/A N/A N/A 4.5 μg/m3 (19) 19.0
 
Feb. 23, 2021, 7 p.m. N/A N/A N/A 9.0 ppb (9) N/A 5.0 ppb (8) N/A N/A N/A 7.2 μg/m3 (31) 31.0
 
Feb. 23, 2021, 6 p.m. N/A N/A N/A 10.0 ppb (10) N/A 5.0 ppb (8) N/A N/A N/A 8.9 μg/m3 (38) 38.0
 
Feb. 23, 2021, 5 p.m. N/A N/A N/A 8.0 ppb (8) N/A 3.0 ppb (5) N/A N/A N/A 10.1 μg/m3 (43) 43.0
 
Feb. 23, 2021, 4 p.m. N/A N/A N/A 9.0 ppb (9) N/A 3.0 ppb (5) N/A N/A N/A 11.5 μg/m3 (48) 48.0
 
Feb. 23, 2021, 3 p.m. N/A N/A N/A 10.0 ppb (10) N/A 3.0 ppb (5) N/A N/A N/A 11.3 μg/m3 (48) 48.0
 
Feb. 23, 2021, 2 p.m. N/A N/A N/A 12.0 ppb (12) N/A 4.0 ppb (6) N/A N/A N/A 9.9 μg/m3 (42) 42.0
 
Feb. 23, 2021, 1 p.m. N/A N/A N/A 13.0 ppb (13) N/A 3.0 ppb (5) N/A N/A N/A 9.8 μg/m3 (41) 41.0
 
Feb. 23, 2021, noon N/A N/A N/A 22.0 ppb (21) N/A 3.0 ppb (5) N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
Feb. 23, 2021, 11 a.m. N/A N/A N/A 20.0 ppb (19) N/A 3.0 ppb (5) N/A N/A N/A 12.7 μg/m3 (53) 53.0
 
Feb. 23, 2021, 10 a.m. N/A N/A N/A 15.0 ppb (15) N/A 3.0 ppb (5) N/A N/A N/A 13.9 μg/m3 (55) 55.0
 
Feb. 23, 2021, 9 a.m. N/A N/A N/A 16.0 ppb (16) N/A 2.0 ppb (3) N/A N/A N/A 15.6 μg/m3 (59) 59.0
 
Feb. 23, 2021, 8 a.m. N/A N/A N/A 18.0 ppb (17) N/A 2.0 ppb (3) N/A N/A N/A 17.8 μg/m3 (63) 63.0
 
Feb. 23, 2021, 7 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 16.6 μg/m3 (61) 61.0
 
Feb. 23, 2021, 6 a.m. N/A N/A N/A 12.0 ppb (12) N/A 2.0 ppb (3) N/A N/A N/A 17.1 μg/m3 (62) 62.0
 
Feb. 23, 2021, 5 a.m. N/A N/A N/A 14.0 ppb (14) N/A N/A N/A N/A N/A 18.9 μg/m3 (66) 66.0
 
Feb. 23, 2021, 4 a.m. N/A N/A N/A 16.0 ppb (16) N/A 2.0 ppb (3) N/A N/A N/A 17.9 μg/m3 (64) 64.0
 
Feb. 23, 2021, 3 a.m. N/A N/A N/A 14.0 ppb (14) N/A 2.0 ppb (3) N/A N/A N/A 20.0 μg/m3 (68) 68.0
 
Feb. 23, 2021, 2 a.m. N/A N/A N/A 16.0 ppb (16) N/A 2.0 ppb (3) N/A N/A N/A 22.4 μg/m3 (73) 73.0
 
Feb. 23, 2021, 1 a.m. N/A N/A N/A 15.0 ppb (15) N/A 2.0 ppb (3) N/A N/A N/A 22.0 μg/m3 (72) 72.0
 
Feb. 23, 2021, midnight N/A N/A N/A 12.0 ppb (12) N/A 2.0 ppb (3) N/A N/A N/A 25.1 μg/m3 (79) 79.0
 
Feb. 22, 2021, 11 p.m. N/A N/A N/A 15.0 ppb (15) N/A 2.0 ppb (3) N/A N/A N/A 28.7 μg/m3 (86) 86.0
 
Feb. 22, 2021, 10 p.m. N/A N/A N/A 14.0 ppb (14) N/A 2.0 ppb (3) N/A N/A N/A 29.1 μg/m3 (87) 87.0
 
Feb. 22, 2021, 9 p.m. N/A N/A N/A 15.0 ppb (15) N/A 2.0 ppb (3) N/A N/A N/A 25.1 μg/m3 (79) 79.0
 
Feb. 22, 2021, 8 p.m. N/A N/A N/A 15.0 ppb (15) N/A 2.0 ppb (3) N/A N/A N/A 21.7 μg/m3 (72) 72.0
 
Feb. 22, 2021, 7 p.m. N/A N/A N/A 13.0 ppb (13) N/A 2.0 ppb (3) N/A N/A N/A 18.0 μg/m3 (64) 64.0
 
Feb. 22, 2021, 6 p.m. N/A N/A N/A 16.0 ppb (16) N/A 2.0 ppb (3) N/A N/A N/A 17.8 μg/m3 (63) 63.0
 
Feb. 22, 2021, 5 p.m. N/A N/A N/A 18.0 ppb (17) N/A 2.0 ppb (3) N/A N/A N/A 19.5 μg/m3 (67) 67.0
 
Feb. 22, 2021, 4 p.m. N/A N/A N/A 19.0 ppb (18) N/A 2.0 ppb (3) N/A N/A N/A 15.9 μg/m3 (59) 59.0
 
Feb. 22, 2021, 3 p.m. N/A N/A N/A 18.0 ppb (17) N/A 2.0 ppb (3) N/A N/A N/A 12.4 μg/m3 (52) 52.0
 
Feb. 22, 2021, 2 p.m. N/A N/A N/A 20.0 ppb (19) N/A 2.0 ppb (3) N/A N/A N/A 10.3 μg/m3 (43) 43.0
 
Feb. 22, 2021, 1 p.m. N/A N/A N/A 15.0 ppb (15) N/A 2.0 ppb (3) N/A N/A N/A 8.5 μg/m3 (36) 36.0
 
Feb. 22, 2021, noon N/A N/A N/A 12.0 ppb (12) N/A 2.0 ppb (3) N/A N/A N/A 6.7 μg/m3 (28) 28.0
 
Feb. 22, 2021, 11 a.m. N/A N/A N/A 11.0 ppb (11) N/A 2.0 ppb (3) N/A N/A N/A 9.1 μg/m3 (38) 38.0
 
Feb. 22, 2021, 10 a.m. N/A N/A N/A 10.0 ppb (10) N/A 2.0 ppb (3) N/A N/A N/A 9.8 μg/m3 (41) 41.0
 
Feb. 22, 2021, 9 a.m. N/A N/A N/A 16.0 ppb (16) N/A 2.0 ppb (3) N/A N/A N/A 9.5 μg/m3 (40) 40.0
 
Feb. 22, 2021, 8 a.m. N/A N/A N/A 17.0 ppb (17) N/A 2.0 ppb (3) N/A N/A N/A 7.8 μg/m3 (33) 33.0
 
Feb. 22, 2021, 7 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 7.8 μg/m3 (33) 33.0
 
Feb. 22, 2021, 6 a.m. N/A N/A N/A 6.0 ppb (6) N/A 2.0 ppb (3) N/A N/A N/A 8.5 μg/m3 (36) 36.0
 
Feb. 22, 2021, 5 a.m. N/A N/A N/A 10.0 ppb (10) N/A N/A N/A N/A N/A 10.8 μg/m3 (46) 46.0
 
Feb. 22, 2021, 4 a.m. N/A N/A N/A 9.0 ppb (9) N/A 4.0 ppb (6) N/A N/A N/A 12.3 μg/m3 (52) 52.0
 
Feb. 22, 2021, 3 a.m. N/A N/A N/A 7.0 ppb (7) N/A 3.0 ppb (5) N/A N/A N/A 14.2 μg/m3 (56) 56.0
 
Feb. 22, 2021, 2 a.m. N/A N/A N/A 8.0 ppb (8) N/A 3.0 ppb (5) N/A N/A N/A 15.7 μg/m3 (59) 59.0
 
Feb. 22, 2021, 1 a.m. N/A N/A N/A 6.0 ppb (6) N/A 3.0 ppb (5) N/A N/A N/A 17.0 μg/m3 (62) 62.0
 
Feb. 22, 2021, midnight N/A N/A N/A 9.0 ppb (9) N/A 2.0 ppb (3) N/A N/A N/A 20.4 μg/m3 (69) 69.0
 
Feb. 21, 2021, 11 p.m. N/A N/A N/A 9.0 ppb (9) N/A 3.0 ppb (5) N/A N/A N/A 23.1 μg/m3 (75) 75.0
 
Feb. 21, 2021, 10 p.m. N/A N/A N/A 7.0 ppb (7) N/A 3.0 ppb (5) N/A N/A N/A 20.5 μg/m3 (69) 69.0
 
Feb. 21, 2021, 9 p.m. N/A N/A N/A 6.0 ppb (6) N/A 3.0 ppb (5) N/A N/A N/A 19.2 μg/m3 (66) 66.0
 
Feb. 21, 2021, 8 p.m. N/A N/A N/A 6.0 ppb (6) N/A 4.0 ppb (6) N/A N/A N/A 18.0 μg/m3 (64) 64.0
 
Feb. 21, 2021, 7 p.m. N/A N/A N/A 7.0 ppb (7) N/A 4.0 ppb (6) N/A N/A N/A 19.5 μg/m3 (67) 67.0
 
Feb. 21, 2021, 6 p.m. N/A N/A N/A 11.0 ppb (11) N/A 18.0 ppb (26) N/A N/A N/A 20.8 μg/m3 (70) 70.0
 
Feb. 21, 2021, 5 p.m. N/A N/A N/A 13.0 ppb (13) N/A 23.0 ppb (33) N/A N/A N/A 20.6 μg/m3 (69) 69.0
 
Feb. 21, 2021, 4 p.m. N/A N/A N/A 14.0 ppb (14) N/A 20.0 ppb (29) N/A N/A N/A 24.4 μg/m3 (77) 77.0
 
Feb. 21, 2021, 3 p.m. N/A N/A N/A 19.0 ppb (18) N/A 26.0 ppb (38) N/A N/A N/A 27.8 μg/m3 (85) 85.0
 
Feb. 21, 2021, 2 p.m. N/A N/A N/A 17.0 ppb (17) N/A 12.0 ppb (18) N/A N/A N/A 33.1 μg/m3 (96) 96.0
 
Feb. 21, 2021, 1 p.m. N/A N/A N/A 20.0 ppb (19) N/A 4.0 ppb (6) N/A N/A N/A 34.2 μg/m3 (98) 98.0
 
Feb. 21, 2021, noon N/A N/A N/A 17.0 ppb (17) N/A 2.0 ppb (3) N/A N/A N/A 34.3 μg/m3 (98) 98.0
 
Feb. 21, 2021, 11 a.m. N/A N/A N/A 14.0 ppb (14) N/A 2.0 ppb (3) N/A N/A N/A 37.6 μg/m3 (107) 107.0
 
Feb. 21, 2021, 10 a.m. N/A N/A N/A 17.0 ppb (17) N/A 2.0 ppb (3) N/A N/A N/A 38.4 μg/m3 (109) 109.0
 
Feb. 21, 2021, 9 a.m. N/A N/A N/A 17.0 ppb (17) N/A 2.0 ppb (3) N/A N/A N/A 39.8 μg/m3 (112) 112.0
 
Feb. 21, 2021, 8 a.m. N/A N/A N/A 19.0 ppb (18) N/A 2.0 ppb (3) N/A N/A N/A 40.2 μg/m3 (113) 113.0
 
Feb. 21, 2021, 7 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 39.4 μg/m3 (111) 111.0
 
Feb. 21, 2021, 6 a.m. N/A N/A N/A 19.0 ppb (18) N/A 2.0 ppb (3) N/A N/A N/A 37.4 μg/m3 (106) 106.0
 
Feb. 21, 2021, 5 a.m. N/A N/A N/A 23.0 ppb (22) N/A N/A N/A N/A N/A 36.5 μg/m3 (104) 104.0
 
Feb. 21, 2021, 4 a.m. N/A N/A N/A 21.0 ppb (20) N/A 2.0 ppb (3) N/A N/A N/A 34.7 μg/m3 (99) 99.0
 
Feb. 21, 2021, 3 a.m. N/A N/A N/A 18.0 ppb (17) N/A 2.0 ppb (3) N/A N/A N/A 34.3 μg/m3 (98) 98.0
 
Feb. 21, 2021, 2 a.m. N/A N/A N/A 19.0 ppb (18) N/A 2.0 ppb (3) N/A N/A N/A 36.6 μg/m3 (104) 104.0
 
Feb. 21, 2021, 1 a.m. N/A N/A N/A 15.0 ppb (15) N/A 2.0 ppb (3) N/A N/A N/A 37.4 μg/m3 (106) 106.0
 
Feb. 21, 2021, midnight N/A N/A N/A 15.0 ppb (15) N/A 2.0 ppb (3) N/A N/A N/A 32.6 μg/m3 (95) 95.0
 
Feb. 20, 2021, 11 p.m. N/A N/A N/A 17.0 ppb (17) N/A 2.0 ppb (3) N/A N/A N/A 32.6 μg/m3 (95) 95.0
 
Feb. 20, 2021, 10 p.m. N/A N/A N/A 15.0 ppb (15) N/A 2.0 ppb (3) N/A N/A N/A 28.6 μg/m3 (86) 86.0
 
Feb. 20, 2021, 9 p.m. N/A N/A N/A 10.0 ppb (10) N/A 3.0 ppb (5) N/A N/A N/A 21.9 μg/m3 (72) 72.0
 
Feb. 20, 2021, 8 p.m. N/A N/A N/A 9.0 ppb (9) N/A 2.0 ppb (3) N/A N/A N/A 18.0 μg/m3 (64) 64.0
 
Feb. 20, 2021, 7 p.m. N/A N/A N/A 8.0 ppb (8) N/A 2.0 ppb (3) N/A N/A N/A 17.8 μg/m3 (63) 63.0
 
Feb. 20, 2021, 6 p.m. N/A N/A N/A 8.0 ppb (8) N/A 2.0 ppb (3) N/A N/A N/A 18.0 μg/m3 (64) 64.0
 
Feb. 20, 2021, 5 p.m. N/A N/A N/A 8.0 ppb (8) N/A 2.0 ppb (3) N/A N/A N/A 18.3 μg/m3 (65) 65.0
 
Feb. 20, 2021, 4 p.m. N/A N/A N/A 10.0 ppb (10) N/A 2.0 ppb (3) N/A N/A N/A 27.1 μg/m3 (83) 83.0
 
Feb. 20, 2021, 3 p.m. N/A N/A N/A 11.0 ppb (11) N/A 3.0 ppb (5) N/A N/A N/A 32.6 μg/m3 (95) 95.0
 
Feb. 20, 2021, 2 p.m. N/A N/A N/A 13.0 ppb (13) N/A 2.0 ppb (3) N/A N/A N/A 35.8 μg/m3 (102) 102.0
 
Feb. 20, 2021, 1 p.m. N/A N/A N/A 24.0 ppb (23) N/A 2.0 ppb (3) N/A N/A N/A 37.0 μg/m3 (105) 105.0
 
Feb. 20, 2021, noon N/A N/A N/A 35.0 ppb (34) N/A 2.0 ppb (3) N/A N/A N/A 39.2 μg/m3 (111) 111.0
 
Feb. 20, 2021, 11 a.m. N/A N/A N/A 23.0 ppb (22) N/A 2.0 ppb (3) N/A N/A N/A 36.9 μg/m3 (105) 105.0
 
Feb. 20, 2021, 10 a.m. N/A N/A N/A 24.0 ppb (23) N/A 2.0 ppb (3) N/A N/A N/A 38.9 μg/m3 (110) 110.0
 
Feb. 20, 2021, 9 a.m. N/A N/A N/A 19.0 ppb (18) N/A 2.0 ppb (3) N/A N/A N/A 38.4 μg/m3 (109) 109.0
 
Feb. 20, 2021, 8 a.m. N/A N/A N/A 19.0 ppb (18) N/A 2.0 ppb (3) N/A N/A N/A 38.0 μg/m3 (108) 108.0
 
Feb. 20, 2021, 7 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) N/A N/A N/A 34.3 μg/m3 (98) 98.0
 
Feb. 20, 2021, 6 a.m. N/A N/A N/A 21.0 ppb (20) N/A 2.0 ppb (3) N/A N/A N/A 30.4 μg/m3 (90) 90.0
 
Feb. 20, 2021, 5 a.m. N/A N/A N/A 19.0 ppb (18) N/A N/A N/A N/A N/A 33.4 μg/m3 (96) 96.0
 
Feb. 20, 2021, 4 a.m. N/A N/A N/A 11.0 ppb (11) N/A 2.0 ppb (3) N/A N/A N/A 25.8 μg/m3 (80) 80.0
 
Feb. 20, 2021, 3 a.m. N/A N/A N/A 17.0 ppb (17) N/A 2.0 ppb (3) N/A N/A N/A 26.0 μg/m3 (81) 81.0
 
Feb. 20, 2021, 2 a.m. N/A N/A N/A 18.0 ppb (17) N/A 2.0 ppb (3) N/A N/A N/A 30.2 μg/m3 (90) 90.0
 
Feb. 20, 2021, 1 a.m. N/A N/A N/A 21.0 ppb (20) N/A 2.0 ppb (3) N/A N/A N/A 36.0 μg/m3 (103) 103.0
 
Feb. 20, 2021, midnight N/A N/A N/A 21.0 ppb (20) N/A 2.0 ppb (3) N/A N/A N/A 24.2 μg/m3 (77) 77.0
 
Feb. 19, 2021, 11 p.m. N/A N/A N/A 17.0 ppb (17) N/A 2.0 ppb (3) N/A N/A N/A 20.7 μg/m3 (70) 70.0
 
Feb. 19, 2021, 10 p.m. N/A N/A N/A 14.0 ppb (14) N/A 2.0 ppb (3) N/A N/A N/A 12.9 μg/m3 (53) 53.0
 
Feb. 19, 2021, 9 p.m. N/A N/A N/A 11.0 ppb (11) N/A 2.0 ppb (3) N/A N/A N/A 12.3 μg/m3 (52) 52.0
 
Feb. 19, 2021, 8 p.m. N/A N/A N/A 13.0 ppb (13) N/A 2.0 ppb (3) N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
Feb. 19, 2021, 7 p.m. N/A N/A N/A 10.0 ppb (10) N/A 2.0 ppb (3) N/A N/A N/A 13.0 μg/m3 (53) 53.0
 
Feb. 19, 2021, 6 p.m. N/A N/A N/A 10.0 ppb (10) N/A 2.0 ppb (3) N/A N/A N/A 13.2 μg/m3 (54) 54.0
 
Feb. 19, 2021, 5 p.m. N/A N/A N/A 12.0 ppb (12) N/A 2.0 ppb (3) N/A N/A N/A 13.7 μg/m3 (55) 55.0
 
Feb. 19, 2021, 4 p.m. N/A N/A N/A 12.0 ppb (12) N/A 3.0 ppb (5) N/A N/A N/A 13.8 μg/m3 (55) 55.0