ID: 7874

AQSQID: 840460130004

Site Name: Aberdeen Bus Stop

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

Updated: May 13, 2021, 11:46 a.m.

Location: Aberdeen (Melrose Addition), SD

Reporting: True, Located: True

Current AQI: 24.0

Aberdeen (Melrose Addition) SD, US: 45.468596, -98.494061

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
April 29, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 40.4 μg/m3 (38) 4.9 μg/m3 (21) 38.0
 
April 29, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 42.3 μg/m3 (40) 6.4 μg/m3 (27) 40.0
 
April 29, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.6 μg/m3 (14) 10.3 μg/m3 (43) 43.0
 
April 29, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 53.6 μg/m3 (50) 5.1 μg/m3 (22) 50.0
 
April 29, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.2 μg/m3 (23) 8.3 μg/m3 (35) 35.0
 
April 29, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (28) 6.8 μg/m3 (29) 29.0
 
April 29, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.1 μg/m3 (30) 11.0 μg/m3 (46) 46.0
 
April 29, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 37.2 μg/m3 (35) 6.5 μg/m3 (28) 35.0
 
April 29, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.5 μg/m3 (20) 5.6 μg/m3 (24) 24.0
 
April 29, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 16.6 μg/m3 (16) 9.3 μg/m3 (39) 39.0
 
April 28, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.9 μg/m3 (14) 7.3 μg/m3 (31) 31.0
 
April 28, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.8 μg/m3 (13) 5.6 μg/m3 (24) 24.0
 
April 28, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.3 μg/m3 (14) 6.6 μg/m3 (28) 28.0
 
April 28, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.7 μg/m3 (9) 6.3 μg/m3 (27) 27.0
 
April 28, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.1 μg/m3 (18) 4.1 μg/m3 (18) 18.0
 
April 28, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.2 μg/m3 (13) 3.9 μg/m3 (17) 17.0
 
April 28, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.4 μg/m3 (12) 7.0 μg/m3 (30) 30.0
 
April 28, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.6 μg/m3 (18) 6.0 μg/m3 (25) 25.0
 
April 28, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.6 μg/m3 (21) 9.5 μg/m3 (40) 40.0
 
April 28, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.3 μg/m3 (18) 8.6 μg/m3 (36) 36.0
 
April 28, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.7 μg/m3 (19) 2.9 μg/m3 (13) 19.0
 
April 28, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 18.3 μg/m3 (17) 4.9 μg/m3 (21) 21.0
 
April 28, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.4 μg/m3 (20) 8.8 μg/m3 (37) 37.0
 
April 28, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.7 μg/m3 (9) 7.9 μg/m3 (33) 33.0
 
April 28, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.4 μg/m3 (11) 7.2 μg/m3 (31) 31.0
 
April 28, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.8 μg/m3 (13) 4.4 μg/m3 (19) 19.0
 
April 28, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.7 μg/m3 (6) 2.7 μg/m3 (12) 12.0
 
April 28, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.5 μg/m3 (15) 2.9 μg/m3 (13) 15.0
 
April 28, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.1 μg/m3 (21) 1.9 μg/m3 (8) 21.0
 
April 28, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.6 μg/m3 (21) 5.9 μg/m3 (25) 25.0
 
April 28, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.1 μg/m3 (22) 8.3 μg/m3 (35) 35.0
 
April 28, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.4 μg/m3 (20) 7.4 μg/m3 (31) 31.0
 
April 28, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.8 μg/m3 (16) 3.2 μg/m3 (14) 16.0
 
April 28, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 13.8 μg/m3 (13) 4.1 μg/m3 (18) 18.0
 
April 27, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.4 μg/m3 (10) 6.4 μg/m3 (27) 27.0
 
April 27, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (10) 6.8 μg/m3 (29) 29.0
 
April 27, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.1 μg/m3 (12) 4.4 μg/m3 (19) 19.0
 
April 27, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.3 μg/m3 (8) 2.4 μg/m3 (10) 10.0
 
April 27, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.3 μg/m3 (15) 4.6 μg/m3 (20) 20.0
 
April 27, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.7 μg/m3 (10) 5.4 μg/m3 (23) 23.0
 
April 27, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.2 μg/m3 (5) 5.1 μg/m3 (22) 22.0
 
April 27, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.5 μg/m3 (15) 5.9 μg/m3 (25) 25.0
 
April 27, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.1 μg/m3 (14) 6.9 μg/m3 (29) 29.0
 
April 27, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 7.1 μg/m3 (30) 30.0
 
April 27, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.5 μg/m3 (15) 10.3 μg/m3 (43) 43.0
 
April 27, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 10.8 μg/m3 (46) 46.0
 
April 27, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.9 μg/m3 (10) 11.0 μg/m3 (46) 46.0
 
April 27, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.5 μg/m3 (16) 11.2 μg/m3 (47) 47.0
 
April 27, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.7 μg/m3 (19) 15.7 μg/m3 (59) 59.0
 
April 27, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.1 μg/m3 (13) 13.2 μg/m3 (54) 54.0
 
April 27, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.3 μg/m3 (13) 15.4 μg/m3 (58) 58.0
 
April 27, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.2 μg/m3 (10) 10.3 μg/m3 (43) 43.0
 
April 27, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.3 μg/m3 (12) 8.6 μg/m3 (36) 36.0
 
April 27, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.1 μg/m3 (23) 10.2 μg/m3 (43) 43.0
 
April 27, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.5 μg/m3 (18) 8.8 μg/m3 (37) 37.0
 
April 27, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.6 μg/m3 (21) 9.5 μg/m3 (40) 40.0
 
April 27, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.3 μg/m3 (16) 13.0 μg/m3 (53) 53.0
 
April 27, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 16.5 μg/m3 (16) N/A 16.0
 
April 26, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.2 μg/m3 (15) N/A 15.0
 
April 26, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.9 μg/m3 (6) N/A 6.0
 
April 26, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.1 μg/m3 (7) N/A 7.0
 
April 26, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.1 μg/m3 (11) N/A 11.0
 
April 26, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.2 μg/m3 (10) N/A 10.0
 
April 26, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.1 μg/m3 (12) N/A 12.0
 
April 26, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.6 μg/m3 (12) N/A 12.0
 
April 26, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.1 μg/m3 (7) N/A 7.0
 
April 26, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.3 μg/m3 (7) N/A 7.0
 
April 26, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.5 μg/m3 (8) N/A 8.0
 
April 26, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.5 μg/m3 (5) N/A 5.0
 
April 26, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 6.4 μg/m3 (6) N/A 6.0
 
April 26, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.9 μg/m3 (11) N/A 11.0
 
April 26, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.6 μg/m3 (11) N/A 11.0
 
April 26, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.6 μg/m3 (11) N/A 11.0
 
April 26, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.5 μg/m3 (15) N/A 15.0
 
April 26, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.9 μg/m3 (10) N/A 10.0
 
April 26, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.3 μg/m3 (12) N/A 12.0
 
April 26, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.3 μg/m3 (13) N/A 13.0
 
April 26, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.5 μg/m3 (15) N/A 15.0
 
April 26, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.3 μg/m3 (13) N/A 13.0
 
April 26, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.6 μg/m3 (11) N/A 11.0
 
April 26, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.1 μg/m3 (14) N/A 14.0
 
April 26, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 18.5 μg/m3 (18) N/A 18.0
 
April 25, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.8 μg/m3 (13) N/A 13.0
 
April 25, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.8 μg/m3 (12) N/A 12.0
 
April 25, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.5 μg/m3 (17) N/A 17.0
 
April 25, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 37.7 μg/m3 (35) N/A 35.0
 
April 25, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 33.1 μg/m3 (31) N/A 31.0
 
April 25, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.3 μg/m3 (13) N/A 13.0
 
April 25, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.7 μg/m3 (9) N/A 9.0
 
April 25, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.4 μg/m3 (5) N/A 5.0
 
April 25, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.2 μg/m3 (9) N/A 9.0
 
April 25, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (13) N/A 13.0
 
April 25, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.7 μg/m3 (17) N/A 17.0
 
April 25, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 11.4 μg/m3 (11) N/A 11.0
 
April 25, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.7 μg/m3 (20) N/A 20.0
 
April 25, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.9 μg/m3 (10) N/A 10.0
 
April 25, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.9 μg/m3 (9) N/A 9.0
 
April 25, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.7 μg/m3 (9) N/A 9.0
 
April 25, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.8 μg/m3 (13) N/A 13.0
 
April 25, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.8 μg/m3 (13) N/A 13.0
 
April 25, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.5 μg/m3 (17) N/A 17.0
 
April 25, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (19) N/A 19.0
 
April 25, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.8 μg/m3 (17) N/A 17.0
 
April 25, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.8 μg/m3 (23) N/A 23.0
 
April 25, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.6 μg/m3 (21) N/A 21.0
 
April 25, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (17) N/A 17.0
 
April 24, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (8) N/A 8.0
 
April 24, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.5 μg/m3 (8) N/A 8.0
 
April 24, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.8 μg/m3 (16) N/A 16.0
 
April 24, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.7 μg/m3 (9) N/A 9.0
 
April 24, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.9 μg/m3 (7) N/A 7.0
 
April 24, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.8 μg/m3 (8) N/A 8.0
 
April 24, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (8) N/A 8.0
 
April 24, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.2 μg/m3 (9) N/A 9.0
 
April 24, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.6 μg/m3 (10) N/A 10.0
 
April 24, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.9 μg/m3 (10) N/A 10.0
 
April 24, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.7 μg/m3 (14) N/A 14.0
 
April 24, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 17.5 μg/m3 (17) N/A 17.0
 
April 24, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) N/A 14.0
 
April 24, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.7 μg/m3 (16) N/A 16.0
 
April 24, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.4 μg/m3 (9) N/A 9.0
 
April 24, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.3 μg/m3 (11) N/A 11.0
 
April 24, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.2 μg/m3 (10) N/A 10.0
 
April 24, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.5 μg/m3 (14) N/A 14.0
 
April 24, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) N/A 15.0
 
April 24, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.7 μg/m3 (15) N/A 15.0
 
April 24, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.2 μg/m3 (18) N/A 18.0
 
April 24, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (16) N/A 16.0
 
April 24, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.6 μg/m3 (21) N/A 21.0
 
April 24, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 17.8 μg/m3 (17) N/A 17.0
 
April 23, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.6 μg/m3 (12) N/A 12.0
 
April 23, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.6 μg/m3 (8) N/A 8.0
 
April 23, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (17) N/A 17.0
 
April 23, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.7 μg/m3 (14) N/A 14.0
 
April 23, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.9 μg/m3 (12) N/A 12.0
 
April 23, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) N/A 14.0
 
April 23, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.5 μg/m3 (14) N/A 14.0
 
April 23, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.6 μg/m3 (13) N/A 13.0
 
April 23, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.1 μg/m3 (11) N/A 11.0
 
April 23, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.8 μg/m3 (13) N/A 13.0
 
April 23, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.9 μg/m3 (7) N/A 7.0
 
April 23, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 11.6 μg/m3 (11) N/A 11.0
 
April 23, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.5 μg/m3 (8) N/A 8.0
 
April 23, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.8 μg/m3 (8) N/A 8.0
 
April 23, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.1 μg/m3 (11) N/A 11.0
 
April 23, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.6 μg/m3 (10) N/A 10.0
 
April 23, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.6 μg/m3 (7) N/A 7.0
 
April 23, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.3 μg/m3 (7) N/A 7.0
 
April 23, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.1 μg/m3 (7) N/A 7.0
 
April 23, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.1 μg/m3 (6) N/A 6.0
 
April 23, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.1 μg/m3 (6) N/A 6.0
 
April 23, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.9 μg/m3 (10) N/A 10.0
 
April 23, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.4 μg/m3 (5) N/A 5.0
 
April 23, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 38.9 μg/m3 (37) N/A 37.0
 
April 22, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 52.4 μg/m3 (49) N/A 49.0
 
April 22, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 40.9 μg/m3 (38) N/A 38.0
 
April 22, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 59.7 μg/m3 (54) N/A 54.0
 
April 22, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 39.7 μg/m3 (37) N/A 37.0
 
April 22, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 39.9 μg/m3 (37) N/A 37.0
 
April 22, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 56.3 μg/m3 (52) N/A 52.0
 
April 22, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 47.4 μg/m3 (44) N/A 44.0
 
April 22, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.7 μg/m3 (18) N/A 18.0
 
April 22, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.7 μg/m3 (20) N/A 20.0
 
April 22, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.3 μg/m3 (24) N/A 24.0
 
April 22, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.7 μg/m3 (25) N/A 25.0
 
April 22, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 13.6 μg/m3 (13) N/A 13.0
 
April 22, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.2 μg/m3 (9) N/A 9.0
 
April 22, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.5 μg/m3 (14) 5.9 μg/m3 (25) 25.0