ID: 2115

AQSQID: 261630093

Site Name: Eliza Howell- Roadway

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

Updated: April 10, 2021, 6:43 p.m.

Location: Detroit (Schoolcraft St), MI

Reporting: True, Located: True

Current AQI: 43.0

Detroit (Schoolcraft St) MI, US: 42.38599, -83.266319

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
April 10, 2021, 5 p.m. 30.0 ppb (29) 13.1 ppb (13) N/A 17.0 ppb (17) N/A N/A N/A 1.0 ppb (12) N/A 10.1 μg/m3 (43) 43.0
 
April 10, 2021, 4 p.m. 25.6 ppb (25) 10.0 ppb (10) N/A 16.0 ppb (16) N/A N/A N/A 1.0 ppb (12) N/A 11.0 μg/m3 (46) 46.0
 
April 10, 2021, 3 p.m. 32.9 ppb (32) 14.7 ppb (14) N/A 18.0 ppb (17) N/A N/A N/A 1.0 ppb (12) N/A 14.9 μg/m3 (57) 57.0
 
April 10, 2021, 2 p.m. 45.8 ppb (44) 21.4 ppb (21) N/A 24.0 ppb (23) N/A N/A N/A 1.4 ppb (16) N/A 16.9 μg/m3 (62) 62.0
 
April 10, 2021, 1 p.m. 59.1 ppb (57) 31.1 ppb (30) N/A 28.0 ppb (27) N/A N/A N/A 1.2 ppb (14) N/A 18.9 μg/m3 (66) 66.0
 
April 10, 2021, noon 56.6 ppb (54) 34.3 ppb (33) N/A 22.0 ppb (21) N/A N/A N/A 1.2 ppb (14) N/A 15.1 μg/m3 (58) 58.0
 
April 10, 2021, 11 a.m. 43.1 ppb (41) 27.4 ppb (26) N/A 16.0 ppb (16) N/A N/A N/A 1.2 ppb (14) N/A 13.1 μg/m3 (54) 54.0
 
April 10, 2021, 10 a.m. 23.6 ppb (23) 7.8 ppb (8) N/A 16.0 ppb (16) N/A N/A N/A 1.0 ppb (12) N/A 10.1 μg/m3 (43) 43.0
 
April 10, 2021, 9 a.m. 37.4 ppb (36) 15.5 ppb (15) N/A 22.0 ppb (21) N/A N/A N/A 1.1 ppb (13) N/A 14.8 μg/m3 (57) 57.0
 
April 10, 2021, 8 a.m. 30.8 ppb (30) 10.3 ppb (10) N/A 21.0 ppb (20) N/A N/A N/A 1.1 ppb (13) N/A 10.2 μg/m3 (43) 43.0
 
April 10, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.9 ppb (11) N/A 7.1 μg/m3 (30) 30.0
 
April 10, 2021, 6 a.m. 22.7 ppb (22) 5.2 ppb (5) N/A 18.0 ppb (17) N/A N/A N/A 1.0 ppb (12) N/A 9.9 μg/m3 (42) 42.0
 
April 10, 2021, 5 a.m. 23.5 ppb (23) 5.5 ppb (6) N/A 18.0 ppb (17) N/A N/A N/A N/A N/A 8.1 μg/m3 (34) 34.0
 
April 10, 2021, 4 a.m. 31.2 ppb (30) 8.6 ppb (9) N/A 23.0 ppb (22) N/A N/A N/A 1.0 ppb (12) N/A 9.9 μg/m3 (42) 42.0
 
April 10, 2021, 3 a.m. 27.8 ppb (27) 9.3 ppb (9) N/A 19.0 ppb (18) N/A N/A N/A 1.0 ppb (12) N/A 11.9 μg/m3 (50) 50.0
 
April 10, 2021, 2 a.m. 22.7 ppb (22) 8.7 ppb (9) N/A 14.0 ppb (14) N/A N/A N/A 0.9 ppb (11) N/A 8.1 μg/m3 (34) 34.0
 
April 10, 2021, 1 a.m. 16.6 ppb (16) 6.8 ppb (7) N/A 10.0 ppb (10) N/A N/A N/A 0.8 ppb (10) N/A 7.0 μg/m3 (30) 30.0
 
April 10, 2021, midnight 27.2 ppb (26) 10.9 ppb (11) N/A 16.0 ppb (16) N/A N/A N/A 1.0 ppb (12) N/A 8.0 μg/m3 (34) 34.0
 
April 9, 2021, 11 p.m. 32.2 ppb (31) 12.9 ppb (13) N/A 19.0 ppb (18) N/A N/A N/A 1.1 ppb (13) N/A 8.0 μg/m3 (34) 34.0
 
April 9, 2021, 10 p.m. 26.1 ppb (25) 11.2 ppb (11) N/A 15.0 ppb (15) N/A N/A N/A 1.0 ppb (12) N/A 8.0 μg/m3 (34) 34.0
 
April 9, 2021, 9 p.m. 25.3 ppb (24) 12.6 ppb (12) N/A 13.0 ppb (13) N/A N/A N/A 1.0 ppb (12) N/A 4.1 μg/m3 (18) 24.0
 
April 9, 2021, 8 p.m. 22.9 ppb (22) 11.8 ppb (12) N/A 11.0 ppb (11) N/A N/A N/A 0.9 ppb (11) N/A 4.0 μg/m3 (17) 22.0
 
April 9, 2021, 7 p.m. 28.4 ppb (27) 15.2 ppb (15) N/A 13.0 ppb (13) N/A N/A N/A 0.9 ppb (11) N/A 6.9 μg/m3 (29) 29.0
 
April 9, 2021, 6 p.m. 31.9 ppb (31) 17.2 ppb (17) N/A 15.0 ppb (15) N/A N/A N/A 1.0 ppb (12) N/A 6.0 μg/m3 (25) 31.0
 
April 9, 2021, 5 p.m. 27.9 ppb (27) 15.2 ppb (15) N/A 13.0 ppb (13) N/A N/A N/A 0.9 ppb (11) N/A 7.9 μg/m3 (33) 33.0
 
April 9, 2021, 4 p.m. 31.5 ppb (30) 19.2 ppb (19) N/A 12.0 ppb (12) N/A N/A N/A 0.9 ppb (11) N/A 8.0 μg/m3 (34) 34.0
 
April 9, 2021, 3 p.m. 35.6 ppb (34) 22.2 ppb (21) N/A 13.0 ppb (13) N/A N/A N/A 0.9 ppb (11) N/A 9.0 μg/m3 (38) 38.0
 
April 9, 2021, 2 p.m. 43.9 ppb (42) 27.0 ppb (26) N/A 17.0 ppb (17) N/A N/A N/A 0.9 ppb (11) N/A 10.9 μg/m3 (46) 46.0
 
April 9, 2021, 1 p.m. 50.4 ppb (48) 32.2 ppb (31) N/A 18.0 ppb (17) N/A N/A N/A 0.9 ppb (11) N/A 14.9 μg/m3 (57) 57.0
 
April 9, 2021, noon 70.4 ppb (69) 44.3 ppb (42) N/A 26.0 ppb (25) N/A N/A N/A 1.1 ppb (13) N/A 12.1 μg/m3 (51) 69.0
 
April 9, 2021, 11 a.m. 70.8 ppb (69) 47.0 ppb (45) N/A 24.0 ppb (23) N/A N/A N/A 1.2 ppb (14) N/A 12.0 μg/m3 (50) 69.0
 
April 9, 2021, 10 a.m. 47.5 ppb (45) 27.2 ppb (26) N/A 20.0 ppb (19) N/A N/A N/A 1.0 ppb (12) N/A 11.0 μg/m3 (46) 46.0
 
April 9, 2021, 9 a.m. 42.4 ppb (40) 22.2 ppb (21) N/A 20.0 ppb (19) N/A N/A N/A 0.9 ppb (11) N/A 12.0 μg/m3 (50) 50.0
 
April 9, 2021, 8 a.m. 23.4 ppb (23) 10.6 ppb (10) N/A 13.0 ppb (13) N/A N/A N/A 0.8 ppb (10) N/A 10.1 μg/m3 (43) 43.0
 
April 9, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (10) N/A 10.0 μg/m3 (42) 42.0
 
April 9, 2021, 6 a.m. 12.4 ppb (12) 3.1 ppb (3) N/A 9.0 ppb (9) N/A N/A N/A 0.8 ppb (10) N/A 11.0 μg/m3 (46) 46.0
 
April 9, 2021, 5 a.m. 14.6 ppb (14) 3.9 ppb (4) N/A 11.0 ppb (11) N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
April 9, 2021, 4 a.m. 15.9 ppb (15) 4.8 ppb (5) N/A 11.0 ppb (11) N/A N/A N/A 0.8 ppb (10) N/A 11.0 μg/m3 (46) 46.0
 
April 9, 2021, 3 a.m. 20.9 ppb (20) 5.8 ppb (6) N/A 15.0 ppb (15) N/A N/A N/A 1.0 ppb (12) N/A 12.0 μg/m3 (50) 50.0
 
April 9, 2021, 2 a.m. 23.7 ppb (23) 6.4 ppb (7) N/A 17.0 ppb (17) N/A N/A N/A 1.0 ppb (12) N/A 13.0 μg/m3 (53) 53.0
 
April 9, 2021, 1 a.m. 29.7 ppb (29) 9.0 ppb (9) N/A 21.0 ppb (20) N/A N/A N/A 1.0 ppb (12) N/A 8.2 μg/m3 (35) 35.0
 
April 9, 2021, midnight 27.0 ppb (26) 8.2 ppb (8) N/A 19.0 ppb (18) N/A N/A N/A 1.0 ppb (12) N/A 12.8 μg/m3 (53) 53.0
 
April 8, 2021, 11 p.m. 29.5 ppb (28) 10.4 ppb (10) N/A 19.0 ppb (18) N/A N/A N/A 1.1 ppb (13) N/A 25.6 μg/m3 (80) 80.0
 
April 8, 2021, 10 p.m. 49.6 ppb (47) 19.7 ppb (19) N/A 30.0 ppb (29) N/A N/A N/A 1.2 ppb (14) N/A 27.0 μg/m3 (83) 83.0
 
April 8, 2021, 9 p.m. 45.6 ppb (44) 19.1 ppb (19) N/A 27.0 ppb (26) N/A N/A N/A 1.2 ppb (14) N/A 25.1 μg/m3 (79) 79.0
 
April 8, 2021, 8 p.m. 27.1 ppb (26) 12.1 ppb (12) N/A 15.0 ppb (15) N/A N/A N/A 1.0 ppb (12) N/A 21.1 μg/m3 (70) 70.0
 
April 8, 2021, 7 p.m. 37.4 ppb (36) 16.2 ppb (16) N/A 21.0 ppb (20) N/A N/A N/A 1.1 ppb (13) N/A 20.0 μg/m3 (68) 68.0
 
April 8, 2021, 6 p.m. 48.1 ppb (46) 20.9 ppb (20) N/A 27.0 ppb (26) N/A N/A N/A 1.1 ppb (13) N/A 24.8 μg/m3 (78) 78.0
 
April 8, 2021, 5 p.m. 52.8 ppb (50) 24.2 ppb (23) N/A 29.0 ppb (28) N/A N/A N/A 1.1 ppb (13) N/A 21.1 μg/m3 (70) 70.0
 
April 8, 2021, 4 p.m. 43.7 ppb (42) 20.8 ppb (20) N/A 23.0 ppb (22) N/A N/A N/A 1.1 ppb (13) N/A 16.2 μg/m3 (60) 60.0
 
April 8, 2021, 3 p.m. 45.0 ppb (43) 21.8 ppb (21) N/A 23.0 ppb (22) N/A N/A N/A 1.0 ppb (12) N/A 17.0 μg/m3 (62) 62.0
 
April 8, 2021, 2 p.m. 48.5 ppb (46) 23.1 ppb (22) N/A 25.0 ppb (24) N/A N/A N/A 1.0 ppb (12) N/A 18.9 μg/m3 (66) 66.0
 
April 8, 2021, 1 p.m. 57.5 ppb (55) 29.1 ppb (28) N/A 28.0 ppb (27) N/A N/A N/A 1.1 ppb (13) N/A 13.2 μg/m3 (54) 55.0
 
April 8, 2021, noon 31.2 ppb (30) 13.8 ppb (14) N/A 17.0 ppb (17) N/A N/A N/A 0.8 ppb (10) N/A 13.0 μg/m3 (53) 53.0
 
April 8, 2021, 11 a.m. 24.5 ppb (24) 9.4 ppb (9) N/A 15.0 ppb (15) N/A N/A N/A 0.8 ppb (10) N/A 14.0 μg/m3 (55) 55.0
 
April 8, 2021, 10 a.m. 18.1 ppb (18) 7.7 ppb (8) N/A 10.0 ppb (10) N/A N/A N/A 0.7 ppb (8) N/A 12.1 μg/m3 (51) 51.0
 
April 8, 2021, 9 a.m. 10.5 ppb (10) 2.1 ppb (2) N/A 8.0 ppb (8) N/A N/A N/A 0.7 ppb (8) N/A 14.9 μg/m3 (57) 57.0
 
April 8, 2021, 8 a.m. 7.4 ppb (7) 0.6 ppb (1) N/A 7.0 ppb (7) N/A N/A N/A 0.6 ppb (7) N/A 10.2 μg/m3 (43) 43.0
 
April 8, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.7 ppb (8) N/A 14.8 μg/m3 (57) 57.0
 
April 8, 2021, 6 a.m. 8.0 ppb (8) 0.5 ppb (1) N/A 8.0 ppb (8) N/A N/A N/A 0.7 ppb (8) N/A 16.0 μg/m3 (60) 60.0
 
April 8, 2021, 5 a.m. 8.2 ppb (8) 0.5 ppb (1) N/A 8.0 ppb (8) N/A N/A N/A N/A N/A 13.1 μg/m3 (54) 54.0
 
April 8, 2021, 4 a.m. 19.8 ppb (19) 4.0 ppb (4) N/A 16.0 ppb (16) N/A N/A N/A 0.8 ppb (10) N/A 19.8 μg/m3 (68) 68.0
 
April 8, 2021, 3 a.m. 21.2 ppb (20) 5.6 ppb (6) N/A 16.0 ppb (16) N/A N/A N/A 0.9 ppb (11) N/A 21.0 μg/m3 (70) 70.0
 
April 8, 2021, 2 a.m. 22.3 ppb (22) 5.4 ppb (6) N/A 17.0 ppb (17) N/A N/A N/A 1.0 ppb (12) N/A 20.0 μg/m3 (68) 68.0
 
April 8, 2021, 1 a.m. 24.5 ppb (24) 6.2 ppb (6) N/A 18.0 ppb (17) N/A N/A N/A 1.0 ppb (12) N/A 19.0 μg/m3 (66) 66.0
 
April 8, 2021, midnight 28.4 ppb (27) 7.9 ppb (8) N/A 21.0 ppb (20) N/A N/A N/A 1.1 ppb (13) N/A 19.0 μg/m3 (66) 66.0
 
April 7, 2021, 11 p.m. 32.1 ppb (31) 10.5 ppb (10) N/A 22.0 ppb (21) N/A N/A N/A 1.2 ppb (14) N/A 18.0 μg/m3 (64) 64.0
 
April 7, 2021, 10 p.m. 32.1 ppb (31) 12.1 ppb (12) N/A 20.0 ppb (19) N/A N/A N/A 1.1 ppb (13) N/A 14.1 μg/m3 (56) 56.0
 
April 7, 2021, 9 p.m. 37.4 ppb (36) 15.6 ppb (15) N/A 22.0 ppb (21) N/A N/A N/A 1.2 ppb (14) N/A 17.9 μg/m3 (64) 64.0
 
April 7, 2021, 8 p.m. 44.7 ppb (43) 17.3 ppb (17) N/A 27.0 ppb (26) N/A N/A N/A 1.3 ppb (15) N/A 18.0 μg/m3 (64) 64.0
 
April 7, 2021, 7 p.m. 44.2 ppb (42) 19.3 ppb (19) N/A 25.0 ppb (24) N/A N/A N/A 1.2 ppb (14) N/A 18.0 μg/m3 (64) 64.0
 
April 7, 2021, 6 p.m. 46.3 ppb (44) 23.1 ppb (22) N/A 23.0 ppb (22) N/A N/A N/A 1.1 ppb (13) N/A 17.0 μg/m3 (62) 62.0
 
April 7, 2021, 5 p.m. 52.9 ppb (50) 25.6 ppb (25) N/A 27.0 ppb (26) N/A N/A N/A 1.1 ppb (13) N/A 13.1 μg/m3 (54) 54.0
 
April 7, 2021, 4 p.m. 68.6 ppb (67) 35.5 ppb (34) N/A 33.0 ppb (32) N/A N/A N/A 1.2 ppb (14) N/A 19.8 μg/m3 (68) 68.0
 
April 7, 2021, 3 p.m. 84.3 ppb (84) 48.0 ppb (46) N/A 36.0 ppb (34) N/A N/A N/A 1.3 ppb (15) N/A 25.8 μg/m3 (80) 84.0
 
April 7, 2021, 2 p.m. 94.1 ppb (94) 56.5 ppb (54) N/A 38.0 ppb (36) N/A N/A N/A 1.3 ppb (15) N/A 27.9 μg/m3 (85) 94.0
 
April 7, 2021, 1 p.m. 102.4 ppb (102) 66.5 ppb (65) N/A 36.0 ppb (34) N/A N/A N/A 1.4 ppb (16) N/A 28.0 μg/m3 (85) 102.0
 
April 7, 2021, noon 106.2 ppb (102) 73.8 ppb (73) N/A 32.0 ppb (31) N/A N/A N/A 1.4 ppb (16) N/A 27.0 μg/m3 (83) 102.0
 
April 7, 2021, 11 a.m. 97.6 ppb (98) 69.6 ppb (68) N/A 28.0 ppb (27) N/A N/A N/A 1.5 ppb (18) N/A 28.0 μg/m3 (85) 98.0
 
April 7, 2021, 10 a.m. 83.0 ppb (82) 55.8 ppb (53) N/A 27.0 ppb (26) N/A N/A N/A 1.5 ppb (18) N/A 27.0 μg/m3 (83) 83.0
 
April 7, 2021, 9 a.m. 84.4 ppb (84) 56.9 ppb (55) N/A 28.0 ppb (27) N/A N/A N/A 1.6 ppb (19) N/A 25.1 μg/m3 (79) 84.0
 
April 7, 2021, 8 a.m. 48.4 ppb (46) 24.6 ppb (24) N/A 24.0 ppb (23) N/A N/A N/A 1.3 ppb (15) N/A 27.9 μg/m3 (85) 85.0
 
April 7, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 1.3 ppb (15) N/A 29.0 μg/m3 (87) 87.0
 
April 7, 2021, 6 a.m. 50.3 ppb (48) 16.5 ppb (16) N/A 34.0 ppb (33) N/A N/A N/A 1.3 ppb (15) N/A 28.0 μg/m3 (85) 85.0
 
April 7, 2021, 5 a.m. 51.5 ppb (49) 16.4 ppb (16) N/A 35.0 ppb (34) N/A N/A N/A N/A N/A 27.0 μg/m3 (83) 83.0
 
April 7, 2021, 4 a.m. 52.9 ppb (50) 17.6 ppb (17) N/A 35.0 ppb (34) N/A N/A N/A 1.4 ppb (16) N/A 25.1 μg/m3 (79) 79.0
 
April 7, 2021, 3 a.m. 56.9 ppb (55) 19.7 ppb (19) N/A 37.0 ppb (35) N/A N/A N/A 1.7 ppb (20) N/A 22.1 μg/m3 (73) 73.0
 
April 7, 2021, 2 a.m. 51.4 ppb (49) 18.9 ppb (18) N/A 33.0 ppb (32) N/A N/A N/A 1.4 ppb (16) N/A 20.1 μg/m3 (68) 68.0
 
April 7, 2021, 1 a.m. 49.5 ppb (47) 17.6 ppb (17) N/A 32.0 ppb (31) N/A N/A N/A 1.3 ppb (15) N/A 15.2 μg/m3 (58) 58.0
 
April 7, 2021, midnight 54.6 ppb (52) 20.5 ppb (20) N/A 34.0 ppb (33) N/A N/A N/A 1.3 ppb (15) N/A 16.0 μg/m3 (60) 60.0
 
April 6, 2021, 11 p.m. 43.0 ppb (41) 17.6 ppb (17) N/A 25.0 ppb (24) N/A N/A N/A 1.2 ppb (14) N/A 18.9 μg/m3 (66) 66.0
 
April 6, 2021, 10 p.m. 37.3 ppb (36) 17.3 ppb (17) N/A 20.0 ppb (19) N/A N/A N/A 1.2 ppb (14) N/A 14.2 μg/m3 (56) 56.0
 
April 6, 2021, 9 p.m. 43.2 ppb (41) 20.7 ppb (20) N/A 23.0 ppb (22) N/A N/A N/A 1.3 ppb (15) N/A 18.8 μg/m3 (66) 66.0
 
April 6, 2021, 8 p.m. 46.4 ppb (44) 20.7 ppb (20) N/A 26.0 ppb (25) N/A N/A N/A 1.2 ppb (14) N/A 20.0 μg/m3 (68) 68.0
 
April 6, 2021, 7 p.m. 51.8 ppb (49) 25.9 ppb (25) N/A 26.0 ppb (25) N/A N/A N/A 1.3 ppb (15) N/A 18.1 μg/m3 (64) 64.0
 
April 6, 2021, 6 p.m. 54.6 ppb (52) 28.8 ppb (28) N/A 26.0 ppb (25) N/A N/A N/A 1.2 ppb (14) N/A 19.9 μg/m3 (68) 68.0
 
April 6, 2021, 5 p.m. 58.4 ppb (56) 31.7 ppb (30) N/A 27.0 ppb (26) N/A N/A N/A 1.1 ppb (13) N/A 21.9 μg/m3 (72) 72.0
 
April 6, 2021, 4 p.m. 69.4 ppb (68) 40.7 ppb (39) N/A 29.0 ppb (28) N/A N/A N/A 1.2 ppb (14) N/A 25.9 μg/m3 (81) 81.0
 
April 6, 2021, 3 p.m. 80.1 ppb (79) 49.4 ppb (47) N/A 31.0 ppb (30) N/A N/A N/A 1.1 ppb (13) N/A 27.0 μg/m3 (83) 83.0
 
April 6, 2021, 2 p.m. 96.8 ppb (97) 63.4 ppb (62) N/A 33.0 ppb (32) N/A N/A N/A 1.1 ppb (13) N/A 23.1 μg/m3 (75) 97.0
 
April 6, 2021, 1 p.m. 109.2 ppb (103) 74.4 ppb (73) N/A 35.0 ppb (34) N/A N/A N/A 1.3 ppb (15) N/A 18.1 μg/m3 (64) 103.0
 
April 6, 2021, noon 97.0 ppb (97) 64.2 ppb (62) N/A 33.0 ppb (32) N/A N/A N/A 1.3 ppb (15) N/A 13.1 μg/m3 (54) 97.0
 
April 6, 2021, 11 a.m. 42.0 ppb (40) 22.9 ppb (22) N/A 19.0 ppb (18) N/A N/A N/A 1.0 ppb (12) N/A 15.9 μg/m3 (59) 59.0
 
April 6, 2021, 10 a.m. 39.5 ppb (38) 16.5 ppb (16) N/A 23.0 ppb (22) N/A N/A N/A 1.0 ppb (12) N/A 20.9 μg/m3 (70) 70.0
 
April 6, 2021, 9 a.m. 23.9 ppb (23) 7.1 ppb (7) N/A 17.0 ppb (17) N/A N/A N/A 0.8 ppb (10) N/A 12.2 μg/m3 (52) 52.0
 
April 6, 2021, 8 a.m. 18.9 ppb (18) 4.2 ppb (4) N/A 15.0 ppb (15) N/A N/A N/A 0.8 ppb (10) N/A 12.0 μg/m3 (50) 50.0
 
April 6, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.8 ppb (10) N/A 12.0 μg/m3 (50) 50.0
 
April 6, 2021, 6 a.m. 17.4 ppb (17) 2.3 ppb (3) N/A 15.0 ppb (15) N/A N/A N/A 0.8 ppb (10) N/A 14.0 μg/m3 (55) 55.0
 
April 6, 2021, 5 a.m. 15.7 ppb (15) 2.1 ppb (2) N/A 14.0 ppb (14) N/A N/A N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
April 6, 2021, 4 a.m. 14.0 ppb (14) 2.7 ppb (3) N/A 11.0 ppb (11) N/A N/A N/A 0.7 ppb (8) N/A 14.0 μg/m3 (55) 55.0
 
April 6, 2021, 3 a.m. 10.7 ppb (11) 1.0 ppb (1) N/A 10.0 ppb (10) N/A N/A N/A 0.7 ppb (8) N/A 9.1 μg/m3 (38) 38.0
 
April 6, 2021, 2 a.m. 10.2 ppb (10) 2.4 ppb (3) N/A 8.0 ppb (8) N/A N/A N/A 0.7 ppb (8) N/A 12.9 μg/m3 (53) 53.0
 
April 6, 2021, 1 a.m. 16.3 ppb (16) 2.7 ppb (3) N/A 14.0 ppb (14) N/A N/A N/A 0.7 ppb (8) N/A 16.9 μg/m3 (62) 62.0
 
April 6, 2021, midnight 30.3 ppb (29) 9.8 ppb (10) N/A 20.0 ppb (19) N/A N/A N/A 0.9 ppb (11) N/A 19.9 μg/m3 (68) 68.0
 
April 5, 2021, 11 p.m. 33.8 ppb (32) 12.5 ppb (12) N/A 21.0 ppb (20) N/A N/A N/A 1.0 ppb (12) N/A 20.0 μg/m3 (68) 68.0
 
April 5, 2021, 10 p.m. 36.8 ppb (35) 15.0 ppb (15) N/A 22.0 ppb (21) N/A N/A N/A 1.1 ppb (13) N/A 21.0 μg/m3 (70) 70.0
 
April 5, 2021, 9 p.m. 43.4 ppb (41) 17.9 ppb (17) N/A 26.0 ppb (25) N/A N/A N/A 1.2 ppb (14) N/A 23.0 μg/m3 (74) 74.0
 
April 5, 2021, 8 p.m. 46.7 ppb (45) 20.6 ppb (20) N/A 26.0 ppb (25) N/A N/A N/A 1.1 ppb (13) N/A 20.1 μg/m3 (68) 68.0
 
April 5, 2021, 7 p.m. 51.0 ppb (49) 23.2 ppb (22) N/A 28.0 ppb (27) N/A N/A N/A 1.2 ppb (14) N/A 20.0 μg/m3 (68) 68.0
 
April 5, 2021, 6 p.m. 48.9 ppb (47) 24.5 ppb (24) N/A 24.0 ppb (23) N/A N/A N/A 1.0 ppb (12) N/A 24.9 μg/m3 (78) 78.0
 
April 5, 2021, 5 p.m. 65.1 ppb (63) 33.4 ppb (32) N/A 32.0 ppb (31) N/A N/A N/A 1.1 ppb (13) N/A 18.2 μg/m3 (64) 64.0
 
April 5, 2021, 4 p.m. 74.2 ppb (73) 40.8 ppb (39) N/A 34.0 ppb (33) N/A N/A N/A 1.1 ppb (13) N/A 17.0 μg/m3 (62) 73.0
 
April 5, 2021, 3 p.m. 47.3 ppb (45) 23.8 ppb (23) N/A 24.0 ppb (23) N/A N/A N/A 0.8 ppb (10) N/A 19.9 μg/m3 (68) 68.0
 
April 5, 2021, 2 p.m. 64.7 ppb (63) 35.5 ppb (34) N/A 29.0 ppb (28) N/A N/A N/A 0.9 ppb (11) N/A 24.9 μg/m3 (78) 78.0
 
April 5, 2021, 1 p.m. 94.9 ppb (95) 52.5 ppb (50) N/A 42.0 ppb (40) N/A N/A N/A 1.1 ppb (13) N/A 33.8 μg/m3 (97) 97.0
 
April 5, 2021, noon 98.7 ppb (99) 54.5 ppb (52) N/A 44.0 ppb (42) N/A N/A N/A 1.3 ppb (15) N/A 34.0 μg/m3 (98) 99.0
 
April 5, 2021, 11 a.m. 94.6 ppb (95) 51.2 ppb (49) N/A 43.0 ppb (41) N/A N/A N/A 1.4 ppb (16) N/A 23.3 μg/m3 (75) 95.0
 
April 5, 2021, 10 a.m. 74.1 ppb (73) 35.6 ppb (34) N/A 39.0 ppb (37) N/A N/A N/A 0.0 ppb (0) N/A 22.0 μg/m3 (72) 73.0
 
April 5, 2021, 9 a.m. 42.2 ppb (40) 9.7 ppb (10) N/A 32.0 ppb (31) N/A N/A N/A 0.0 ppb (0) N/A 24.9 μg/m3 (78) 78.0
 
April 5, 2021, 8 a.m. 37.6 ppb (36) 6.5 ppb (7) N/A 31.0 ppb (30) N/A N/A N/A 0.0 ppb (0) N/A 27.9 μg/m3 (85) 85.0
 
April 5, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 27.0 μg/m3 (83) 83.0
 
April 5, 2021, 6 a.m. 39.1 ppb (37) 7.5 ppb (8) N/A 32.0 ppb (31) N/A N/A N/A 0.0 ppb (0) N/A 28.0 μg/m3 (85) 85.0
 
April 5, 2021, 5 a.m. 34.1 ppb (33) 6.8 ppb (7) N/A 27.0 ppb (26) N/A N/A N/A N/A N/A 26.0 μg/m3 (81) 81.0
 
April 5, 2021, 4 a.m. 38.3 ppb (37) 7.0 ppb (7) N/A 31.0 ppb (30) N/A N/A N/A 0.0 ppb (0) N/A 26.0 μg/m3 (81) 81.0
 
April 4, 2021, 10 a.m. 69.2 ppb (68) 35.4 ppb (34) N/A 34.0 ppb (33) N/A N/A N/A 0.0 ppb (0) N/A 37.0 μg/m3 (105) 105.0
 
April 4, 2021, 9 a.m. 69.2 ppb (68) 34.7 ppb (33) N/A 34.0 ppb (33) N/A N/A N/A 0.0 ppb (0) N/A 34.1 μg/m3 (98) 98.0
 
April 4, 2021, 8 a.m. 66.3 ppb (65) 35.7 ppb (34) N/A 31.0 ppb (30) N/A N/A N/A 0.0 ppb (0) N/A 36.9 μg/m3 (105) 105.0
 
April 4, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 36.0 μg/m3 (103) 103.0
 
April 4, 2021, 6 a.m. 61.0 ppb (59) 19.5 ppb (19) N/A 42.0 ppb (40) N/A N/A N/A 0.0 ppb (0) N/A 31.1 μg/m3 (91) 91.0
 
April 4, 2021, 5 a.m. 66.3 ppb (65) 25.6 ppb (25) N/A 41.0 ppb (39) N/A N/A N/A N/A N/A 33.9 μg/m3 (97) 97.0
 
April 2, 2021, 6 p.m. 15.8 ppb (15) 9.3 ppb (9) N/A 7.0 ppb (7) N/A N/A N/A 0.6 ppb (7) N/A 4.0 μg/m3 (17) 17.0
 
April 2, 2021, 5 p.m. 13.8 ppb (14) 7.8 ppb (8) N/A 6.0 ppb (6) N/A N/A N/A 0.6 ppb (7) N/A 5.0 μg/m3 (21) 21.0
 
April 2, 2021, 4 p.m. 15.3 ppb (15) 9.4 ppb (9) N/A 6.0 ppb (6) N/A N/A N/A 0.6 ppb (7) N/A 6.9 μg/m3 (29) 29.0
 
April 2, 2021, 3 p.m. 16.5 ppb (16) 10.3 ppb (10) N/A 6.0 ppb (6) N/A N/A N/A 0.6 ppb (7) N/A 9.9 μg/m3 (42) 42.0
 
April 2, 2021, 2 p.m. 11.9 ppb (12) 6.4 ppb (7) N/A 6.0 ppb (6) N/A N/A N/A 0.6 ppb (7) N/A 7.1 μg/m3 (30) 30.0
 
April 2, 2021, 1 p.m. 15.3 ppb (15) 8.1 ppb (8) N/A 7.0 ppb (7) N/A N/A N/A 0.6 ppb (7) N/A 8.0 μg/m3 (34) 34.0
 
April 2, 2021, noon 29.6 ppb (28) 14.6 ppb (14) N/A 15.0 ppb (15) N/A N/A N/A 0.7 ppb (8) N/A 9.0 μg/m3 (38) 38.0
 
April 2, 2021, 11 a.m. 57.9 ppb (56) 32.3 ppb (31) N/A 26.0 ppb (25) N/A N/A N/A 0.8 ppb (10) N/A 10.9 μg/m3 (46) 56.0
 
April 2, 2021, 10 a.m. 35.3 ppb (34) 14.2 ppb (14) N/A 21.0 ppb (20) N/A N/A N/A 0.7 ppb (8) N/A 10.0 μg/m3 (42) 42.0
 
April 2, 2021, 9 a.m. 26.7 ppb (26) 9.9 ppb (10) N/A 17.0 ppb (17) N/A N/A N/A 0.6 ppb (7) N/A 9.0 μg/m3 (38) 38.0
 
April 2, 2021, 8 a.m. 26.2 ppb (25) 6.2 ppb (6) N/A 20.0 ppb (19) N/A N/A N/A 0.6 ppb (7) N/A 10.0 μg/m3 (42) 42.0
 
April 2, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A 0.6 ppb (7) N/A 7.1 μg/m3 (30) 30.0
 
April 2, 2021, 6 a.m. 22.6 ppb (22) 3.9 ppb (4) N/A 19.0 ppb (18) N/A N/A N/A 0.6 ppb (7) N/A 8.0 μg/m3 (34) 34.0
 
April 2, 2021, 5 a.m. 15.0 ppb (15) 2.3 ppb (3) N/A 13.0 ppb (13) N/A N/A N/A N/A N/A 8.0 μg/m3 (34) 34.0
 
April 2, 2021, 4 a.m. 13.7 ppb (13) 2.3 ppb (3) N/A 12.0 ppb (12) N/A N/A N/A 0.6 ppb (7) N/A 6.0 μg/m3 (25) 25.0
 
April 2, 2021, 3 a.m. 14.9 ppb (15) 2.9 ppb (3) N/A 12.0 ppb (12) N/A N/A N/A 0.6 ppb (7) N/A 7.9 μg/m3 (33) 33.0
 
April 2, 2021, 2 a.m. 11.0 ppb (11) 2.6 ppb (3) N/A 9.0 ppb (9) N/A N/A N/A 0.6 ppb (7) N/A 8.0 μg/m3 (34) 34.0
 
April 2, 2021, 1 a.m. 10.2 ppb (10) 4.7 ppb (5) N/A 6.0 ppb (6) N/A N/A N/A 0.5 ppb (6) N/A 8.0 μg/m3 (34) 34.0
 
April 2, 2021, midnight 6.6 ppb (7) 2.3 ppb (3) N/A 4.0 ppb (4) N/A N/A N/A 0.5 ppb (6) N/A 6.1 μg/m3 (26) 26.0
 
April 1, 2021, 11 p.m. 4.5 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A N/A N/A 0.5 ppb (6) N/A 7.0 μg/m3 (30) 30.0
 
April 1, 2021, 10 p.m. 3.8 ppb (4) 1.8 ppb (2) N/A 2.0 ppb (2) N/A N/A N/A 0.5 ppb (6) N/A 8.9 μg/m3 (38) 38.0
 
April 1, 2021, 9 p.m. 4.1 ppb (4) 2.0 ppb (2) N/A 2.0 ppb (2) N/A N/A N/A 0.5 ppb (6) N/A 6.1 μg/m3 (26) 26.0
 
April 1, 2021, 8 p.m. 4.6 ppb (5) 2.6 ppb (3) N/A 2.0 ppb (2) N/A N/A N/A 0.5 ppb (6) N/A 6.0 μg/m3 (25) 25.0
 
April 1, 2021, 7 p.m. 6.4 ppb (7) 3.6 ppb (4) N/A 3.0 ppb (3) N/A N/A N/A 0.5 ppb (6) N/A 7.9 μg/m3 (33) 33.0
 
April 1, 2021, 6 p.m. 4.1 ppb (4) 1.9 ppb (2) N/A 2.0 ppb (2) N/A N/A N/A 0.5 ppb (6) N/A 6.1 μg/m3 (26) 26.0
 
April 1, 2021, 5 p.m. 4.6 ppb (5) 2.4 ppb (3) N/A 2.0 ppb (2) N/A N/A N/A 0.5 ppb (6) N/A 5.0 μg/m3 (21) 21.0
 
April 1, 2021, 4 p.m. 4.0 ppb (4) 2.4 ppb (3) N/A 2.0 ppb (2) N/A N/A N/A 0.5 ppb (6) N/A 6.9 μg/m3 (29) 29.0
 
April 1, 2021, 3 p.m. 3.5 ppb (4) 1.5 ppb (2) N/A 2.0 ppb (2) N/A N/A N/A 0.5 ppb (6) N/A 8.0 μg/m3 (34) 34.0