ID: 509

AQSQID: 261630001

Site Name: Allen Park

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

Updated: April 20, 2021, 9:44 a.m.

Location: Allen Park (Goddard Rd), MI

Reporting: True, Located: True

Current AQI: 25.0

Allen Park (Goddard Rd) MI, US: 42.2283, -83.2092

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
April 20, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.0 ppb (0) 7.0 μg/m3 (7) 3.2 μg/m3 (14) 25.0
 
April 20, 2021, 7 a.m. N/A N/A 4.5 ppb (5) N/A N/A N/A 27.0 ppb (25) N/A 5.9 μg/m3 (6) 3.1 μg/m3 (13) 25.0
 
April 20, 2021, 6 a.m. N/A N/A 5.2 ppb (5) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.0 ppb (0) 6.3 μg/m3 (6) 3.3 μg/m3 (14) 25.0
 
April 20, 2021, 5 a.m. N/A N/A 4.5 ppb (5) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.0 ppb (0) 6.1 μg/m3 (6) 3.6 μg/m3 (16) 25.0
 
April 20, 2021, 4 a.m. N/A N/A 4.4 ppb (5) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.0 ppb (0) 7.0 μg/m3 (7) 4.0 μg/m3 (17) 25.0
 
April 20, 2021, 3 a.m. N/A N/A 3.6 ppb (4) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.0 ppb (0) 7.0 μg/m3 (7) 4.4 μg/m3 (19) 26.0
 
April 20, 2021, 2 a.m. N/A N/A 4.2 ppb (4) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.0 ppb (0) 7.6 μg/m3 (8) 4.8 μg/m3 (20) 25.0
 
April 20, 2021, 1 a.m. N/A N/A 4.6 ppb (5) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.0 ppb (0) 6.8 μg/m3 (7) 4.2 μg/m3 (18) 28.0
 
April 20, 2021, midnight N/A N/A 8.0 ppb (8) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.0 ppb (0) 8.8 μg/m3 (9) 3.7 μg/m3 (16) 31.0
 
April 19, 2021, 11 p.m. N/A N/A 7.2 ppb (7) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.0 ppb (0) 8.9 μg/m3 (9) 4.6 μg/m3 (20) 31.0
 
April 19, 2021, 10 p.m. N/A N/A 8.8 ppb (9) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.0 ppb (0) 12.2 μg/m3 (12) 7.2 μg/m3 (31) 31.0
 
April 19, 2021, 9 p.m. N/A N/A 8.2 ppb (8) N/A N/A 0.0 ppb (0) 34.0 ppb (32) 0.0 ppb (0) 27.2 μg/m3 (26) 12.2 μg/m3 (52) 52.0
 
April 19, 2021, 8 p.m. N/A N/A 8.6 ppb (9) N/A N/A 0.0 ppb (0) 39.0 ppb (37) 0.0 ppb (0) 59.3 μg/m3 (54) 12.7 μg/m3 (53) 54.0
 
April 19, 2021, 7 p.m. N/A N/A 8.8 ppb (9) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.0 ppb (0) 96.3 μg/m3 (72) 13.4 μg/m3 (54) 72.0
 
April 19, 2021, 6 p.m. N/A N/A 7.7 ppb (8) N/A N/A 0.0 ppb (0) 45.0 ppb (42) 0.0 ppb (0) 54.9 μg/m3 (51) 10.0 μg/m3 (42) 51.0
 
April 19, 2021, 5 p.m. N/A N/A 5.1 ppb (5) N/A N/A 0.0 ppb (0) 46.0 ppb (43) 0.0 ppb (0) 41.1 μg/m3 (39) 8.7 μg/m3 (37) 43.0
 
April 19, 2021, 4 p.m. N/A N/A 6.9 ppb (7) N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.0 ppb (0) 40.2 μg/m3 (38) 8.6 μg/m3 (36) 40.0
 
April 19, 2021, 3 p.m. N/A N/A 7.3 ppb (7) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.0 ppb (0) 45.3 μg/m3 (42) 9.2 μg/m3 (39) 42.0
 
April 19, 2021, 2 p.m. N/A N/A 7.8 ppb (8) N/A N/A 1.0 ppb (2) 36.0 ppb (34) 0.0 ppb (0) 32.3 μg/m3 (30) 9.5 μg/m3 (40) 40.0
 
April 19, 2021, 1 p.m. N/A N/A 12.2 ppb (12) N/A N/A 1.0 ppb (2) 29.0 ppb (27) 0.0 ppb (0) 35.8 μg/m3 (34) 11.6 μg/m3 (49) 49.0
 
April 19, 2021, noon N/A N/A 22.5 ppb (22) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.0 ppb (0) 29.9 μg/m3 (28) 11.4 μg/m3 (48) 48.0
 
April 19, 2021, 11 a.m. N/A N/A 30.4 ppb (29) N/A N/A 0.0 ppb (0) 9.0 ppb (9) 0.0 ppb (0) 25.4 μg/m3 (24) 10.1 μg/m3 (43) 43.0
 
April 19, 2021, 10 a.m. N/A N/A 25.5 ppb (25) N/A N/A 0.0 ppb (0) 13.0 ppb (13) 0.0 ppb (0) 21.6 μg/m3 (20) 9.6 μg/m3 (40) 40.0
 
April 19, 2021, 9 a.m. N/A N/A 19.4 ppb (19) N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 20.7 μg/m3 (20) 9.5 μg/m3 (40) 40.0
 
April 19, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 21.0 ppb (20) 0.0 ppb (0) 17.3 μg/m3 (17) 8.9 μg/m3 (38) 38.0
 
April 19, 2021, 7 a.m. N/A N/A 24.6 ppb (24) N/A N/A N/A 11.0 ppb (11) N/A 17.8 μg/m3 (17) 9.2 μg/m3 (39) 39.0
 
April 19, 2021, 6 a.m. N/A N/A 24.4 ppb (24) N/A N/A 0.0 ppb (0) 12.0 ppb (12) 0.0 ppb (0) 18.2 μg/m3 (17) 9.5 μg/m3 (40) 40.0
 
April 19, 2021, 5 a.m. N/A N/A 35.2 ppb (34) N/A N/A 0.0 ppb (0) 3.0 ppb (3) 0.0 ppb (0) 20.6 μg/m3 (20) 9.9 μg/m3 (42) 42.0
 
April 19, 2021, 4 a.m. N/A N/A 36.7 ppb (35) N/A N/A 0.0 ppb (0) 5.0 ppb (5) 0.0 ppb (0) 20.1 μg/m3 (19) 11.2 μg/m3 (47) 47.0
 
April 19, 2021, 3 a.m. N/A N/A 33.7 ppb (32) N/A N/A 0.0 ppb (0) 10.0 ppb (10) 0.0 ppb (0) 20.8 μg/m3 (20) 10.1 μg/m3 (43) 43.0
 
April 19, 2021, 2 a.m. N/A N/A 18.2 ppb (18) N/A N/A 0.0 ppb (0) 21.0 ppb (20) 0.0 ppb (0) 16.0 μg/m3 (15) 7.3 μg/m3 (31) 31.0
 
April 19, 2021, 1 a.m. N/A N/A 13.5 ppb (13) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.0 ppb (0) 14.9 μg/m3 (14) 7.1 μg/m3 (30) 30.0
 
April 19, 2021, midnight N/A N/A 10.7 ppb (11) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.0 ppb (0) 13.6 μg/m3 (13) 5.9 μg/m3 (25) 30.0
 
April 18, 2021, 11 p.m. N/A N/A 6.2 ppb (6) N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.0 ppb (0) 13.8 μg/m3 (13) 4.7 μg/m3 (20) 36.0
 
April 18, 2021, 10 p.m. N/A N/A 4.8 ppb (5) N/A N/A 0.0 ppb (0) 41.0 ppb (38) 0.0 ppb (0) 9.0 μg/m3 (9) 4.2 μg/m3 (18) 38.0
 
April 18, 2021, 9 p.m. N/A N/A 3.8 ppb (4) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.0 ppb (0) 10.5 μg/m3 (10) 4.3 μg/m3 (18) 39.0
 
April 18, 2021, 8 p.m. N/A N/A 3.1 ppb (3) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.0 ppb (0) 9.3 μg/m3 (9) 3.9 μg/m3 (17) 39.0
 
April 18, 2021, 7 p.m. N/A N/A 3.3 ppb (4) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.0 ppb (0) 10.8 μg/m3 (10) 3.8 μg/m3 (16) 39.0
 
April 18, 2021, 6 p.m. N/A N/A 3.4 ppb (4) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.0 ppb (0) 9.9 μg/m3 (10) 3.7 μg/m3 (16) 39.0
 
April 18, 2021, 5 p.m. N/A N/A 2.9 ppb (3) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.0 ppb (0) 10.0 μg/m3 (10) 3.7 μg/m3 (16) 39.0
 
April 18, 2021, 4 p.m. N/A N/A 3.4 ppb (4) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.0 ppb (0) 10.1 μg/m3 (10) 4.3 μg/m3 (18) 38.0
 
April 18, 2021, 3 p.m. N/A N/A 5.9 ppb (6) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.0 ppb (0) 11.8 μg/m3 (11) 5.9 μg/m3 (25) 29.0
 
April 18, 2021, 2 p.m. N/A N/A 7.5 ppb (8) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.0 ppb (0) 13.6 μg/m3 (13) 8.2 μg/m3 (35) 35.0
 
April 18, 2021, 1 p.m. N/A N/A 10.6 ppb (10) N/A N/A 1.0 ppb (2) 20.0 ppb (19) 0.0 ppb (0) 16.7 μg/m3 (16) 10.9 μg/m3 (46) 46.0
 
April 18, 2021, noon N/A N/A 15.1 ppb (15) N/A N/A 0.0 ppb (0) 15.0 ppb (14) 0.0 ppb (0) 20.0 μg/m3 (19) 13.1 μg/m3 (54) 54.0
 
April 18, 2021, 11 a.m. N/A N/A 21.0 ppb (20) N/A N/A 0.0 ppb (0) 9.0 ppb (9) 0.0 ppb (0) 23.6 μg/m3 (22) 16.4 μg/m3 (61) 61.0
 
April 18, 2021, 10 a.m. N/A N/A 18.8 ppb (18) N/A N/A 0.0 ppb (0) 7.0 ppb (7) 0.0 ppb (0) 24.1 μg/m3 (23) 17.4 μg/m3 (63) 63.0
 
April 18, 2021, 9 a.m. N/A N/A 17.4 ppb (17) N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 21.6 μg/m3 (20) 16.5 μg/m3 (61) 61.0
 
April 18, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 11.0 ppb (11) 0.0 ppb (0) 20.3 μg/m3 (19) 15.3 μg/m3 (58) 58.0
 
April 18, 2021, 7 a.m. N/A N/A 15.4 ppb (15) N/A N/A N/A 15.0 ppb (14) N/A 21.3 μg/m3 (20) 16.0 μg/m3 (60) 60.0
 
April 18, 2021, 6 a.m. N/A N/A 17.3 ppb (17) N/A N/A 0.0 ppb (0) 8.0 ppb (8) 0.0 ppb (0) 27.4 μg/m3 (26) 22.4 μg/m3 (73) 73.0
 
April 18, 2021, 5 a.m. N/A N/A 16.6 ppb (16) N/A N/A 0.0 ppb (0) 10.0 ppb (10) 0.0 ppb (0) 29.3 μg/m3 (28) 23.4 μg/m3 (75) 75.0
 
April 18, 2021, 4 a.m. N/A N/A 17.9 ppb (17) N/A N/A 0.0 ppb (0) 11.0 ppb (11) 0.0 ppb (0) 32.9 μg/m3 (31) 25.3 μg/m3 (79) 79.0
 
April 18, 2021, 3 a.m. N/A N/A 16.8 ppb (16) N/A N/A 0.0 ppb (0) 13.0 ppb (13) 0.0 ppb (0) 35.2 μg/m3 (33) 27.0 μg/m3 (83) 83.0
 
April 18, 2021, 2 a.m. N/A N/A 14.4 ppb (14) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.0 ppb (0) 30.2 μg/m3 (28) 23.8 μg/m3 (76) 76.0
 
April 18, 2021, 1 a.m. N/A N/A 9.1 ppb (9) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.0 ppb (0) 20.4 μg/m3 (19) 14.2 μg/m3 (56) 56.0
 
April 18, 2021, midnight N/A N/A 7.1 ppb (7) N/A N/A 1.0 ppb (2) 32.0 ppb (30) 0.0 ppb (0) 17.1 μg/m3 (16) 11.7 μg/m3 (49) 49.0
 
April 17, 2021, 11 p.m. N/A N/A 6.5 ppb (7) N/A N/A 1.0 ppb (2) 35.0 ppb (33) 0.0 ppb (0) 15.1 μg/m3 (14) 8.2 μg/m3 (35) 35.0
 
April 17, 2021, 10 p.m. N/A N/A 6.8 ppb (7) N/A N/A 1.0 ppb (2) 34.0 ppb (32) 0.0 ppb (0) 14.2 μg/m3 (14) 7.5 μg/m3 (32) 32.0
 
April 17, 2021, 9 p.m. N/A N/A 6.1 ppb (6) N/A N/A 1.0 ppb (2) 36.0 ppb (34) 0.0 ppb (0) 12.5 μg/m3 (12) 5.7 μg/m3 (24) 34.0
 
April 17, 2021, 8 p.m. N/A N/A 5.4 ppb (6) N/A N/A 1.0 ppb (2) 38.0 ppb (36) 0.0 ppb (0) 11.7 μg/m3 (11) 4.4 μg/m3 (19) 36.0
 
April 17, 2021, 7 p.m. N/A N/A 4.3 ppb (5) N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.0 ppb (0) 7.9 μg/m3 (8) 3.7 μg/m3 (16) 36.0
 
April 17, 2021, 6 p.m. N/A N/A 4.1 ppb (4) N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.0 ppb (0) 7.8 μg/m3 (8) 3.6 μg/m3 (16) 33.0
 
April 17, 2021, 5 p.m. N/A N/A 4.9 ppb (5) N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.0 ppb (0) 8.9 μg/m3 (9) 3.5 μg/m3 (15) 31.0
 
April 17, 2021, 4 p.m. N/A N/A 7.8 ppb (8) N/A N/A 1.0 ppb (2) 28.0 ppb (26) 0.0 ppb (0) 11.2 μg/m3 (11) 4.6 μg/m3 (20) 26.0
 
April 17, 2021, 3 p.m. N/A N/A 9.1 ppb (9) N/A N/A 2.0 ppb (3) 27.0 ppb (25) 0.0 ppb (0) 11.1 μg/m3 (11) 5.1 μg/m3 (22) 25.0
 
April 17, 2021, 2 p.m. N/A N/A 12.1 ppb (12) N/A N/A 2.0 ppb (3) 23.0 ppb (22) 0.0 ppb (0) 15.2 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
April 17, 2021, 1 p.m. N/A N/A 15.5 ppb (15) N/A N/A 2.0 ppb (3) 19.0 ppb (18) 0.0 ppb (0) 16.0 μg/m3 (15) 6.2 μg/m3 (26) 26.0
 
April 17, 2021, noon N/A N/A 28.3 ppb (27) N/A N/A 1.0 ppb (2) 11.0 ppb (11) 0.0 ppb (0) 16.7 μg/m3 (16) 8.1 μg/m3 (34) 34.0
 
April 17, 2021, 11 a.m. N/A N/A 37.1 ppb (35) N/A N/A 1.0 ppb (2) 3.0 ppb (3) 0.0 ppb (0) 16.8 μg/m3 (16) 10.0 μg/m3 (42) 42.0
 
April 17, 2021, 10 a.m. N/A N/A 32.3 ppb (31) N/A N/A 0.0 ppb (0) 2.0 ppb (2) 0.0 ppb (0) 16.2 μg/m3 (15) 9.4 μg/m3 (40) 40.0
 
April 17, 2021, 9 a.m. N/A N/A 27.7 ppb (27) N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 13.8 μg/m3 (13) 8.4 μg/m3 (36) 36.0
 
April 17, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 3.0 ppb (3) 0.0 ppb (0) 15.0 μg/m3 (14) 8.0 μg/m3 (34) 34.0
 
April 17, 2021, 7 a.m. N/A N/A 24.1 ppb (23) N/A N/A N/A 4.0 ppb (4) N/A 11.7 μg/m3 (11) 6.7 μg/m3 (28) 28.0
 
April 17, 2021, 6 a.m. N/A N/A 15.1 ppb (15) N/A N/A 1.0 ppb (2) 11.0 ppb (11) 0.0 ppb (0) 12.9 μg/m3 (12) 7.1 μg/m3 (30) 30.0
 
April 17, 2021, 5 a.m. N/A N/A 17.4 ppb (17) N/A N/A 2.0 ppb (3) 9.0 ppb (9) 0.0 ppb (0) 24.3 μg/m3 (23) 9.7 μg/m3 (41) 41.0
 
April 17, 2021, 4 a.m. N/A N/A 15.7 ppb (15) N/A N/A 2.0 ppb (3) 11.0 ppb (11) 0.0 ppb (0) 27.3 μg/m3 (26) 12.3 μg/m3 (52) 52.0
 
April 17, 2021, 3 a.m. N/A N/A 16.8 ppb (16) N/A N/A 2.0 ppb (3) 8.0 ppb (8) 0.0 ppb (0) 19.0 μg/m3 (18) 12.8 μg/m3 (53) 53.0
 
April 17, 2021, 2 a.m. N/A N/A 6.9 ppb (7) N/A N/A 0.0 ppb (0) 16.0 ppb (15) 0.0 ppb (0) 17.2 μg/m3 (16) 12.1 μg/m3 (51) 51.0
 
April 17, 2021, 1 a.m. N/A N/A 6.8 ppb (7) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.0 ppb (0) 14.9 μg/m3 (14) 8.1 μg/m3 (34) 34.0
 
April 17, 2021, midnight N/A N/A 13.4 ppb (13) N/A N/A 0.0 ppb (0) 21.0 ppb (20) 0.0 ppb (0) 14.5 μg/m3 (14) 6.4 μg/m3 (27) 27.0
 
April 16, 2021, 11 p.m. N/A N/A 10.4 ppb (10) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.0 ppb (0) 12.7 μg/m3 (12) 5.7 μg/m3 (24) 24.0
 
April 16, 2021, 10 p.m. N/A N/A 7.1 ppb (7) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.0 ppb (0) 11.5 μg/m3 (11) 5.7 μg/m3 (24) 26.0
 
April 16, 2021, 9 p.m. N/A N/A 7.8 ppb (8) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.0 ppb (0) 13.0 μg/m3 (13) 5.7 μg/m3 (24) 26.0
 
April 16, 2021, 8 p.m. N/A N/A 7.6 ppb (8) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.0 ppb (0) 12.5 μg/m3 (12) 5.6 μg/m3 (24) 26.0
 
April 16, 2021, 7 p.m. N/A N/A 10.1 ppb (10) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.0 ppb (0) 11.5 μg/m3 (11) 5.5 μg/m3 (23) 24.0
 
April 16, 2021, 6 p.m. N/A N/A 10.3 ppb (10) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.0 ppb (0) 10.6 μg/m3 (10) 5.1 μg/m3 (22) 24.0
 
April 16, 2021, 5 p.m. N/A N/A 10.1 ppb (10) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.0 ppb (0) 10.5 μg/m3 (10) 4.5 μg/m3 (19) 23.0
 
April 16, 2021, 4 p.m. N/A N/A 9.4 ppb (9) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.0 ppb (0) 9.1 μg/m3 (9) 4.0 μg/m3 (17) 23.0
 
April 16, 2021, 3 p.m. N/A N/A 9.6 ppb (10) N/A N/A N/A 24.0 ppb (23) N/A 8.6 μg/m3 (8) 3.5 μg/m3 (15) 23.0
 
April 16, 2021, 2 p.m. N/A N/A 10.0 ppb (10) N/A N/A N/A 22.0 ppb (21) N/A 9.1 μg/m3 (9) 3.8 μg/m3 (16) 21.0
 
April 16, 2021, 1 p.m. N/A N/A 12.1 ppb (12) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.0 ppb (0) 6.7 μg/m3 (7) 3.7 μg/m3 (16) 19.0
 
April 16, 2021, noon N/A N/A 11.3 ppb (11) N/A N/A 0.0 ppb (0) 18.0 ppb (17) 0.0 ppb (0) 7.8 μg/m3 (8) 3.5 μg/m3 (15) 17.0
 
April 16, 2021, 11 a.m. N/A N/A 12.6 ppb (12) N/A N/A 0.0 ppb (0) 16.0 ppb (15) 0.0 ppb (0) 7.4 μg/m3 (7) 3.6 μg/m3 (16) 16.0
 
April 16, 2021, 10 a.m. N/A N/A 9.8 ppb (10) N/A N/A 0.0 ppb (0) 19.0 ppb (18) 0.0 ppb (0) 7.0 μg/m3 (7) 3.7 μg/m3 (16) 18.0
 
April 16, 2021, 9 a.m. N/A N/A 5.3 ppb (5) N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 6.7 μg/m3 (7) 3.5 μg/m3 (15) 15.0
 
April 16, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 21.0 ppb (20) 0.0 ppb (0) 5.6 μg/m3 (6) 3.4 μg/m3 (15) 20.0
 
April 16, 2021, 7 a.m. N/A N/A 2.2 ppb (3) N/A N/A N/A 23.0 ppb (22) N/A 5.8 μg/m3 (6) 3.5 μg/m3 (15) 22.0
 
April 16, 2021, 6 a.m. N/A N/A 2.8 ppb (3) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.0 ppb (0) 6.5 μg/m3 (7) 3.9 μg/m3 (17) 24.0
 
April 16, 2021, 5 a.m. N/A N/A 3.6 ppb (4) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.0 ppb (0) N/A 4.1 μg/m3 (18) 24.0
 
April 16, 2021, 4 a.m. N/A N/A 3.6 ppb (4) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.0 ppb (0) N/A 4.2 μg/m3 (18) 24.0
 
April 16, 2021, 3 a.m. N/A N/A 4.1 ppb (4) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.0 ppb (0) N/A 4.8 μg/m3 (20) 23.0
 
April 16, 2021, 2 a.m. N/A N/A 5.3 ppb (5) N/A N/A 0.0 ppb (0) 19.0 ppb (18) 0.0 ppb (0) N/A 4.4 μg/m3 (19) 19.0
 
April 16, 2021, 1 a.m. N/A N/A 5.9 ppb (6) N/A N/A 0.0 ppb (0) 17.0 ppb (16) 0.0 ppb (0) N/A 3.5 μg/m3 (15) 16.0
 
April 16, 2021, midnight N/A N/A 7.1 ppb (7) N/A N/A 0.0 ppb (0) 16.0 ppb (15) 0.0 ppb (0) N/A 3.1 μg/m3 (13) 15.0
 
April 15, 2021, 11 p.m. N/A N/A 7.6 ppb (8) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.0 ppb (0) N/A 3.8 μg/m3 (16) 19.0
 
April 15, 2021, 10 p.m. N/A N/A 7.3 ppb (7) N/A N/A 0.0 ppb (0) 24.0 ppb (23) 0.0 ppb (0) N/A 3.5 μg/m3 (15) 23.0
 
April 15, 2021, 9 p.m. N/A N/A 8.8 ppb (9) N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.0 ppb (0) N/A 2.6 μg/m3 (11) 22.0
 
April 15, 2021, 8 p.m. N/A N/A 8.6 ppb (9) N/A N/A 0.0 ppb (0) 21.0 ppb (20) 0.0 ppb (0) N/A 2.5 μg/m3 (11) 20.0
 
April 15, 2021, 7 p.m. N/A N/A 10.0 ppb (10) N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.0 ppb (0) N/A 2.3 μg/m3 (10) 19.0
 
April 15, 2021, 6 p.m. N/A N/A 10.9 ppb (11) N/A N/A 0.0 ppb (0) 18.0 ppb (17) 0.0 ppb (0) N/A 3.0 μg/m3 (13) 17.0
 
April 15, 2021, 5 p.m. N/A N/A 12.1 ppb (12) N/A N/A 0.0 ppb (0) 15.0 ppb (14) 0.0 ppb (0) N/A 3.5 μg/m3 (15) 15.0
 
April 15, 2021, 4 p.m. N/A N/A 15.3 ppb (15) N/A N/A 0.0 ppb (0) 13.0 ppb (13) 0.0 ppb (0) N/A 4.4 μg/m3 (19) 19.0
 
April 15, 2021, 3 p.m. N/A N/A 18.8 ppb (18) N/A N/A 0.0 ppb (0) 11.0 ppb (11) 0.0 ppb (0) N/A 6.2 μg/m3 (26) 26.0
 
April 15, 2021, 2 p.m. N/A N/A 21.2 ppb (20) N/A N/A 0.0 ppb (0) 10.0 ppb (10) 0.0 ppb (0) N/A 6.7 μg/m3 (28) 28.0
 
April 15, 2021, 1 p.m. N/A N/A 19.8 ppb (19) N/A N/A 0.0 ppb (0) 11.0 ppb (11) 0.0 ppb (0) N/A 6.0 μg/m3 (25) 25.0
 
April 15, 2021, noon N/A N/A 28.5 ppb (27) N/A N/A 0.0 ppb (0) 8.0 ppb (8) 0.0 ppb (0) N/A 5.9 μg/m3 (25) 27.0
 
April 15, 2021, 11 a.m. N/A N/A 23.7 ppb (23) N/A N/A 0.0 ppb (0) 8.0 ppb (8) 0.0 ppb (0) N/A 6.1 μg/m3 (26) 26.0
 
April 15, 2021, 10 a.m. N/A N/A 16.5 ppb (16) N/A N/A 0.0 ppb (0) 13.0 ppb (13) 0.0 ppb (0) N/A 5.0 μg/m3 (21) 21.0
 
April 15, 2021, 9 a.m. N/A N/A 11.6 ppb (11) N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) N/A 8.5 μg/m3 (36) 36.0
 
April 15, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 15.0 ppb (14) 0.0 ppb (0) N/A 5.4 μg/m3 (23) 23.0
 
April 15, 2021, 7 a.m. N/A N/A 7.5 ppb (8) N/A N/A N/A 16.0 ppb (15) N/A N/A 5.6 μg/m3 (24) 24.0
 
April 15, 2021, 6 a.m. N/A N/A 5.6 ppb (6) N/A N/A 0.0 ppb (0) 21.0 ppb (20) 0.0 ppb (0) N/A 6.1 μg/m3 (26) 26.0
 
April 15, 2021, 5 a.m. N/A N/A 7.8 ppb (8) N/A N/A 0.0 ppb (0) 22.0 ppb (21) 0.0 ppb (0) N/A 6.6 μg/m3 (28) 28.0
 
April 15, 2021, 4 a.m. N/A N/A 10.3 ppb (10) N/A N/A 0.0 ppb (0) 21.0 ppb (20) 0.0 ppb (0) N/A 7.1 μg/m3 (30) 30.0
 
April 15, 2021, 3 a.m. N/A N/A 10.0 ppb (10) N/A N/A 0.0 ppb (0) 22.0 ppb (21) 0.0 ppb (0) N/A 6.9 μg/m3 (29) 29.0
 
April 15, 2021, 2 a.m. N/A N/A 11.0 ppb (11) N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.0 ppb (0) N/A 6.7 μg/m3 (28) 28.0
 
April 15, 2021, 1 a.m. N/A N/A 8.5 ppb (9) N/A N/A 0.0 ppb (0) 25.0 ppb (24) 0.0 ppb (0) N/A 7.4 μg/m3 (31) 31.0
 
April 15, 2021, midnight N/A N/A 7.3 ppb (7) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.0 ppb (0) N/A 7.0 μg/m3 (30) 30.0
 
April 14, 2021, 11 p.m. N/A N/A 7.0 ppb (7) N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.0 ppb (0) N/A 8.7 μg/m3 (37) 37.0
 
April 14, 2021, 10 p.m. N/A N/A 7.8 ppb (8) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.0 ppb (0) N/A 9.9 μg/m3 (42) 42.0
 
April 14, 2021, 9 p.m. N/A N/A 9.6 ppb (10) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.0 ppb (0) N/A 6.4 μg/m3 (27) 34.0
 
April 14, 2021, 8 p.m. N/A N/A 12.1 ppb (12) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.0 ppb (0) N/A 6.2 μg/m3 (26) 34.0
 
April 14, 2021, 7 p.m. N/A N/A 11.3 ppb (11) N/A N/A 0.0 ppb (0) 37.0 ppb (35) 0.0 ppb (0) N/A 7.9 μg/m3 (33) 35.0
 
April 14, 2021, 6 p.m. N/A N/A 8.2 ppb (8) N/A N/A 0.0 ppb (0) 40.0 ppb (38) 0.0 ppb (0) N/A 9.2 μg/m3 (39) 39.0
 
April 14, 2021, 5 p.m. N/A N/A 9.1 ppb (9) N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.0 ppb (0) N/A 8.7 μg/m3 (37) 37.0
 
April 14, 2021, 4 p.m. N/A N/A 10.5 ppb (10) N/A N/A 1.0 ppb (2) 34.0 ppb (32) 0.0 ppb (0) N/A 8.9 μg/m3 (38) 38.0
 
April 14, 2021, 3 p.m. N/A N/A 10.1 ppb (10) N/A N/A 1.0 ppb (2) N/A 0.0 ppb (0) N/A 6.9 μg/m3 (29) 29.0
 
April 14, 2021, 2 p.m. N/A N/A 10.0 ppb (10) N/A N/A 1.0 ppb (2) 32.0 ppb (30) 0.0 ppb (0) N/A 6.8 μg/m3 (29) 30.0
 
April 14, 2021, 1 p.m. N/A N/A 10.2 ppb (10) N/A N/A 1.0 ppb (2) 31.0 ppb (29) 0.0 ppb (0) N/A 6.8 μg/m3 (29) 29.0
 
April 14, 2021, noon N/A N/A 28.2 ppb (27) N/A N/A 0.0 ppb (0) 17.0 ppb (16) 0.0 ppb (0) N/A 9.2 μg/m3 (39) 39.0
 
April 14, 2021, 11 a.m. N/A N/A 35.6 ppb (34) N/A N/A 0.0 ppb (0) 7.0 ppb (7) 0.0 ppb (0) N/A 9.7 μg/m3 (41) 41.0
 
April 14, 2021, 10 a.m. N/A N/A 57.1 ppb (55) N/A N/A 0.0 ppb (0) 1.0 ppb (1) 0.0 ppb (0) N/A 9.6 μg/m3 (40) 55.0
 
April 14, 2021, 9 a.m. N/A N/A 63.0 ppb (61) N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) N/A 9.5 μg/m3 (40) 61.0
 
April 14, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 5.0 ppb (5) 0.0 ppb (0) N/A 9.4 μg/m3 (40) 40.0
 
April 14, 2021, 7 a.m. N/A N/A 16.5 ppb (16) N/A N/A N/A 18.0 ppb (17) N/A N/A 7.8 μg/m3 (33) 33.0
 
April 14, 2021, 6 a.m. N/A N/A 7.5 ppb (8) N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.0 ppb (0) N/A 6.9 μg/m3 (29) 29.0
 
April 14, 2021, 5 a.m. N/A N/A 5.7 ppb (6) N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.0 ppb (0) N/A 6.5 μg/m3 (28) 30.0
 
April 14, 2021, 4 a.m. N/A N/A 6.0 ppb (6) N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.0 ppb (0) N/A 6.7 μg/m3 (28) 29.0
 
April 14, 2021, 3 a.m. N/A N/A 7.0 ppb (7) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.0 ppb (0) N/A 5.1 μg/m3 (22) 25.0
 
April 14, 2021, 2 a.m. N/A N/A 13.0 ppb (13) N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.0 ppb (0) N/A 5.8 μg/m3 (25) 25.0
 
April 14, 2021, 1 a.m. N/A N/A 17.4 ppb (17) N/A N/A 0.0 ppb (0) 27.0 ppb (25) 0.0 ppb (0) N/A 5.7 μg/m3 (24) 25.0
 
April 14, 2021, midnight N/A N/A 10.1 ppb (10) N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.0 ppb (0) N/A 4.9 μg/m3 (21) 34.0
 
April 13, 2021, 11 p.m. N/A N/A 5.4 ppb (6) N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.0 ppb (0) N/A 4.6 μg/m3 (20) 41.0
 
April 13, 2021, 10 p.m. N/A N/A 6.3 ppb (6) N/A N/A 0.0 ppb (0) 43.0 ppb (40) 0.0 ppb (0) N/A 4.4 μg/m3 (19) 40.0
 
April 13, 2021, 9 p.m. N/A N/A 5.4 ppb (6) N/A N/A 0.0 ppb (0) 45.0 ppb (42) 0.0 ppb (0) N/A 4.8 μg/m3 (20) 42.0
 
April 13, 2021, 8 p.m. N/A N/A 6.0 ppb (6) N/A N/A 0.0 ppb (0) 45.0 ppb (42) 0.0 ppb (0) N/A 5.2 μg/m3 (22) 42.0
 
April 13, 2021, 7 p.m. N/A N/A 6.1 ppb (6) N/A N/A 0.0 ppb (0) 44.0 ppb (41) 0.0 ppb (0) N/A 5.8 μg/m3 (25) 41.0
 
April 13, 2021, 6 p.m. N/A N/A 5.5 ppb (6) N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.0 ppb (0) N/A 6.3 μg/m3 (27) 39.0
 
April 13, 2021, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (38) 0.0 ppb (0) N/A 5.7 μg/m3 (24) 38.0
 
April 13, 2021, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 38.0 ppb (36) 0.0 ppb (0) N/A 5.7 μg/m3 (24) 36.0
 
April 13, 2021, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.0 ppb (0) N/A 5.8 μg/m3 (25) 34.0
 
April 13, 2021, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (29) 0.0 ppb (0) N/A 6.8 μg/m3 (29) 29.0
 
April 13, 2021, 1 p.m. N/A N/A 21.6 ppb (21) N/A N/A 0.0 ppb (0) 21.0 ppb (20) 0.0 ppb (0) N/A 8.2 μg/m3 (35) 35.0
 
April 13, 2021, noon N/A N/A 53.7 ppb (51) N/A N/A 0.0 ppb (0) 7.0 ppb (7) 0.0 ppb (0) N/A 8.8 μg/m3 (37) 51.0
 
April 13, 2021, 11 a.m. N/A N/A 59.2 ppb (57) N/A N/A 0.0 ppb (0) 2.0 ppb (2) 0.0 ppb (0) N/A 8.8 μg/m3 (37) 57.0
 
April 13, 2021, 10 a.m. N/A N/A 44.6 ppb (43) N/A N/A 0.0 ppb (0) 2.0 ppb (2) 0.0 ppb (0) N/A 7.2 μg/m3 (31) 43.0
 
April 13, 2021, 9 a.m. N/A N/A 27.9 ppb (27) N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) N/A 7.1 μg/m3 (30) 30.0