ID: 7874

AQSQID: 840460130004

Site Name: Aberdeen Bus Stop

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

Updated: March 6, 2021, 11:32 a.m.

Location: Aberdeen (Melrose Addition), SD

Reporting: True, Located: True

Current AQI: 37.0

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
March 6, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 8.8 μg/m3 (37) 37.0
 
March 6, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.8 μg/m3 (15) 10.8 μg/m3 (46) 46.0
 
March 6, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.8 μg/m3 (17) 13.0 μg/m3 (53) 53.0
 
March 6, 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) 13.5 μg/m3 (54) 54.0
 
March 6, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.4 μg/m3 (20) 9.5 μg/m3 (40) 40.0
 
March 6, 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) 14.7 μg/m3 (57) 57.0
 
March 6, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.3 μg/m3 (23) 11.2 μg/m3 (47) 47.0
 
March 6, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.4 μg/m3 (28) 16.1 μg/m3 (60) 60.0
 
March 6, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.9 μg/m3 (28) 14.4 μg/m3 (56) 56.0
 
March 6, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 29.9 μg/m3 (28) 15.4 μg/m3 (58) 58.0
 
March 5, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.2 μg/m3 (27) 11.0 μg/m3 (46) 46.0
 
March 5, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.7 μg/m3 (29) 14.2 μg/m3 (56) 56.0
 
March 5, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.5 μg/m3 (26) 15.9 μg/m3 (59) 59.0
 
March 5, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.5 μg/m3 (27) 15.9 μg/m3 (59) 59.0
 
March 5, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 35.3 μg/m3 (33) 20.3 μg/m3 (69) 69.0
 
March 5, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.9 μg/m3 (29) 24.2 μg/m3 (77) 77.0
 
March 5, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.7 μg/m3 (26) 24.9 μg/m3 (78) 78.0
 
March 5, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.5 μg/m3 (25) 17.9 μg/m3 (64) 64.0
 
March 5, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.6 μg/m3 (23) 15.2 μg/m3 (58) 58.0
 
March 5, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.6 μg/m3 (12) 9.1 μg/m3 (38) 38.0
 
March 5, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.6 μg/m3 (13) 8.1 μg/m3 (34) 34.0
 
March 5, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 12.8 μg/m3 (12) 8.8 μg/m3 (37) 37.0
 
March 5, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.8 μg/m3 (13) 8.8 μg/m3 (37) 37.0
 
March 5, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (17) 11.3 μg/m3 (48) 48.0
 
March 5, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.8 μg/m3 (16) 10.3 μg/m3 (43) 43.0
 
March 5, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.6 μg/m3 (13) 11.5 μg/m3 (48) 48.0
 
March 5, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.5 μg/m3 (25) 12.5 μg/m3 (52) 52.0
 
March 5, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.4 μg/m3 (19) 10.3 μg/m3 (43) 43.0
 
March 5, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.5 μg/m3 (25) 13.5 μg/m3 (54) 54.0
 
March 5, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.2 μg/m3 (27) 10.7 μg/m3 (45) 45.0
 
March 5, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.9 μg/m3 (27) 10.3 μg/m3 (43) 43.0
 
March 5, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (32) 11.2 μg/m3 (47) 47.0
 
March 5, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 52.1 μg/m3 (49) 11.7 μg/m3 (49) 49.0
 
March 5, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 38.0 μg/m3 (36) 8.5 μg/m3 (36) 36.0
 
March 4, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 40.7 μg/m3 (38) 7.5 μg/m3 (32) 38.0
 
March 4, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.6 μg/m3 (24) 5.5 μg/m3 (23) 24.0
 
March 4, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.6 μg/m3 (24) 3.9 μg/m3 (17) 24.0
 
March 4, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.7 μg/m3 (28) 6.3 μg/m3 (27) 28.0
 
March 4, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.5 μg/m3 (28) 7.3 μg/m3 (31) 31.0
 
March 4, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.7 μg/m3 (25) 7.5 μg/m3 (32) 32.0
 
March 4, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 31.9 μg/m3 (30) 8.8 μg/m3 (37) 37.0
 
March 4, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.8 μg/m3 (29) 29.0
 
March 4, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.9 μg/m3 (12) N/A 12.0
 
March 4, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (8) 8.5 μg/m3 (36) 36.0
 
March 4, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 10.4 μg/m3 (10) 5.1 μg/m3 (22) 22.0
 
March 4, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.2 μg/m3 (8) 5.1 μg/m3 (22) 22.0
 
March 4, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.6 μg/m3 (10) 5.1 μg/m3 (22) 22.0
 
March 4, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.7 μg/m3 (9) 6.6 μg/m3 (28) 28.0
 
March 4, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.5 μg/m3 (17) 5.1 μg/m3 (22) 22.0
 
March 4, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.3 μg/m3 (16) 6.3 μg/m3 (27) 27.0
 
March 4, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.9 μg/m3 (12) 7.8 μg/m3 (33) 33.0
 
March 4, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.3 μg/m3 (24) 3.6 μg/m3 (16) 24.0
 
March 4, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.6 μg/m3 (20) 1.6 μg/m3 (7) 20.0
 
March 4, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.9 μg/m3 (27) 4.1 μg/m3 (18) 27.0
 
March 4, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.6 μg/m3 (22) 6.4 μg/m3 (27) 27.0
 
March 4, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.8 μg/m3 (33) 7.3 μg/m3 (31) 33.0
 
March 4, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 24.6 μg/m3 (23) 5.3 μg/m3 (23) 23.0
 
March 3, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.9 μg/m3 (23) 3.1 μg/m3 (13) 23.0
 
March 3, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.3 μg/m3 (18) 1.2 μg/m3 (5) 18.0
 
March 3, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.7 μg/m3 (18) 1.9 μg/m3 (8) 18.0
 
March 3, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.5 μg/m3 (26) 3.1 μg/m3 (13) 26.0
 
March 3, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.9 μg/m3 (22) 4.1 μg/m3 (18) 22.0
 
March 3, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.1 μg/m3 (11) 3.4 μg/m3 (15) 15.0
 
March 3, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.1 μg/m3 (19) 4.6 μg/m3 (20) 20.0
 
March 3, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.8 μg/m3 (14) 6.5 μg/m3 (28) 28.0
 
March 3, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (18) 6.1 μg/m3 (26) 26.0
 
March 3, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.4 μg/m3 (6) 8.5 μg/m3 (36) 36.0
 
March 3, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.1 μg/m3 (11) 7.3 μg/m3 (31) 31.0
 
March 3, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 12.6 μg/m3 (12) 4.1 μg/m3 (18) 18.0
 
March 3, 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) 5.1 μg/m3 (22) 22.0
 
March 3, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.2 μg/m3 (9) 5.1 μg/m3 (22) 22.0
 
March 3, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.5 μg/m3 (7) 5.1 μg/m3 (22) 22.0
 
March 3, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.4 μg/m3 (10) 1.4 μg/m3 (6) 10.0
 
March 3, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.2 μg/m3 (9) 3.9 μg/m3 (17) 17.0
 
March 3, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.2 μg/m3 (15) 6.3 μg/m3 (27) 27.0
 
March 3, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 33.7 μg/m3 (32) 4.8 μg/m3 (20) 32.0
 
March 3, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 35.5 μg/m3 (33) 6.6 μg/m3 (28) 33.0
 
March 3, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 31.1 μg/m3 (29) 7.0 μg/m3 (30) 30.0
 
March 3, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 37.0 μg/m3 (35) 7.5 μg/m3 (32) 35.0
 
March 3, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 33.8 μg/m3 (32) 5.3 μg/m3 (23) 32.0
 
March 3, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 17.5 μg/m3 (17) 3.4 μg/m3 (15) 17.0
 
March 2, 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) 2.6 μg/m3 (11) 11.0
 
March 2, 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) 3.9 μg/m3 (17) 17.0
 
March 2, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.8 μg/m3 (9) 1.4 μg/m3 (6) 9.0
 
March 2, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.6 μg/m3 (11) 0.0 μg/m3 (0) 11.0
 
March 2, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.2 μg/m3 (11) -2.2 μg/m3 (0) 11.0
 
March 2, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.5 μg/m3 (18) -0.5 μg/m3 (0) 18.0
 
March 2, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 51.4 μg/m3 (48) 2.1 μg/m3 (9) 48.0
 
March 2, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.3 μg/m3 (18) 2.6 μg/m3 (11) 18.0
 
March 2, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.1 μg/m3 (13) 3.1 μg/m3 (13) 13.0
 
March 2, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.7 μg/m3 (8) 3.4 μg/m3 (15) 15.0
 
March 2, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.7 μg/m3 (8) 3.1 μg/m3 (13) 13.0
 
March 2, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 7.3 μg/m3 (7) 2.6 μg/m3 (11) 11.0
 
March 2, 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) 2.9 μg/m3 (13) 13.0
 
March 2, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.3 μg/m3 (11) 6.4 μg/m3 (27) 27.0
 
March 2, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.6 μg/m3 (10) 8.5 μg/m3 (36) 36.0
 
March 2, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.6 μg/m3 (11) 5.1 μg/m3 (22) 22.0
 
March 2, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.6 μg/m3 (20) 2.2 μg/m3 (10) 20.0
 
March 2, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.6 μg/m3 (12) 3.4 μg/m3 (15) 15.0
 
March 2, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.1 μg/m3 (11) 6.1 μg/m3 (26) 26.0
 
March 2, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.9 μg/m3 (10) 7.5 μg/m3 (32) 32.0
 
March 2, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.5 μg/m3 (13) 6.6 μg/m3 (28) 28.0
 
March 2, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.1 μg/m3 (10) 7.4 μg/m3 (31) 31.0
 
March 2, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.2 μg/m3 (16) 6.9 μg/m3 (29) 29.0
 
March 2, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (32) 6.1 μg/m3 (26) 32.0
 
March 1, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 43.7 μg/m3 (41) 3.4 μg/m3 (15) 41.0
 
March 1, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 33.1 μg/m3 (31) 1.1 μg/m3 (5) 31.0
 
March 1, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.7 μg/m3 (25) 0.1 μg/m3 (1) 25.0
 
March 1, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.1 μg/m3 (22) -0.2 μg/m3 (0) 22.0
 
March 1, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.7 μg/m3 (18) 2.6 μg/m3 (11) 18.0
 
March 1, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.5 μg/m3 (16) 4.9 μg/m3 (21) 21.0
 
March 1, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.3 μg/m3 (14) 3.1 μg/m3 (13) 14.0
 
March 1, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.1 μg/m3 (11) 2.9 μg/m3 (13) 13.0
 
March 1, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.4 μg/m3 (14) 4.4 μg/m3 (19) 19.0
 
March 1, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.6 μg/m3 (9) 5.1 μg/m3 (22) 22.0
 
March 1, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.8 μg/m3 (8) 6.1 μg/m3 (26) 26.0
 
March 1, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 10.3 μg/m3 (10) 5.6 μg/m3 (24) 24.0
 
March 1, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.9 μg/m3 (9) 3.4 μg/m3 (15) 15.0
 
March 1, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.5 μg/m3 (7) 5.1 μg/m3 (22) 22.0
 
March 1, 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) 7.4 μg/m3 (31) 31.0
 
March 1, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.5 μg/m3 (11) 7.7 μg/m3 (33) 33.0
 
March 1, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.5 μg/m3 (12) 8.3 μg/m3 (35) 35.0
 
March 1, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.9 μg/m3 (11) 7.8 μg/m3 (33) 33.0
 
March 1, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.5 μg/m3 (13) 2.4 μg/m3 (10) 13.0
 
March 1, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.6 μg/m3 (8) 4.1 μg/m3 (18) 18.0
 
March 1, 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) 5.4 μg/m3 (23) 23.0
 
March 1, 2021, 2 a.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
 
March 1, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.8 μg/m3 (23) 7.3 μg/m3 (31) 31.0
 
March 1, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 11.6 μg/m3 (11) 4.6 μg/m3 (20) 20.0
 
Feb. 28, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.8 μg/m3 (11) 3.6 μg/m3 (16) 16.0
 
Feb. 28, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 5.6 μg/m3 (24) 24.0
 
Feb. 28, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.7 μg/m3 (4) 4.4 μg/m3 (19) 19.0
 
Feb. 28, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.9 μg/m3 (5) 3.9 μg/m3 (17) 17.0
 
Feb. 28, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.2 μg/m3 (8) 2.4 μg/m3 (10) 10.0
 
Feb. 28, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.2 μg/m3 (9) 4.6 μg/m3 (20) 20.0
 
Feb. 28, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.9 μg/m3 (11) 3.4 μg/m3 (15) 15.0
 
Feb. 28, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.7 μg/m3 (9) 3.4 μg/m3 (15) 15.0
 
Feb. 28, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.5 μg/m3 (11) 3.1 μg/m3 (13) 13.0
 
Feb. 28, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.6 μg/m3 (7) 4.4 μg/m3 (19) 19.0
 
Feb. 28, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.8 μg/m3 (7) 5.9 μg/m3 (25) 25.0
 
Feb. 28, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 4.1 μg/m3 (4) 3.9 μg/m3 (17) 17.0
 
Feb. 28, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.7 μg/m3 (8) 5.1 μg/m3 (22) 22.0
 
Feb. 28, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.4 μg/m3 (10) 7.8 μg/m3 (33) 33.0
 
Feb. 28, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 4.9 μg/m3 (21) 21.0
 
Feb. 28, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.6 μg/m3 (9) 5.4 μg/m3 (23) 23.0
 
Feb. 28, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 6.1 μg/m3 (26) 26.0
 
Feb. 28, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.9 μg/m3 (6) 3.1 μg/m3 (13) 13.0
 
Feb. 28, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.8 μg/m3 (8) 6.9 μg/m3 (29) 29.0
 
Feb. 28, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 5.6 μg/m3 (24) 24.0
 
Feb. 28, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.7 μg/m3 (9) 6.4 μg/m3 (27) 27.0
 
Feb. 28, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.6 μg/m3 (7) 3.4 μg/m3 (15) 15.0
 
Feb. 28, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.6 μg/m3 (6) 4.1 μg/m3 (18) 18.0
 
Feb. 28, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (8) 5.9 μg/m3 (25) 25.0
 
Feb. 27, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.5 μg/m3 (8) 6.3 μg/m3 (27) 27.0
 
Feb. 27, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.4 μg/m3 (6) 2.4 μg/m3 (10) 10.0
 
Feb. 27, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.9 μg/m3 (10) 4.6 μg/m3 (20) 20.0
 
Feb. 27, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.4 μg/m3 (9) 6.4 μg/m3 (27) 27.0
 
Feb. 27, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (8) 5.1 μg/m3 (22) 22.0
 
Feb. 27, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 1.9 μg/m3 (8) 9.0
 
Feb. 27, 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) 0.4 μg/m3 (2) 9.0
 
Feb. 27, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.9 μg/m3 (6) 3.1 μg/m3 (13) 13.0
 
Feb. 27, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.4 μg/m3 (5) 5.4 μg/m3 (23) 23.0
 
Feb. 27, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.7 μg/m3 (9) 4.1 μg/m3 (18) 18.0
 
Feb. 27, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.6 μg/m3 (6) 3.4 μg/m3 (15) 15.0
 
Feb. 27, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 2.1 μg/m3 (9) 9.0
 
Feb. 27, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.5 μg/m3 (7) 1.2 μg/m3 (5) 7.0
 
Feb. 27, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.4 μg/m3 (7) 0.4 μg/m3 (2) 7.0
 
Feb. 27, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.8 μg/m3 (12) 1.1 μg/m3 (5) 12.0