ID: 2247

AQSQID: 060271003

Site Name: Keeler

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

Updated: April 10, 2021, 10:42 a.m.

Location: Keeler (Cerro Gordo St), CA

Reporting: True, Located: True

Current AQI: 20.0

Keeler (Cerro Gordo St) CA, US: 36.4878, -117.871

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
April 10, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.6 μg/m3 (12) 4.8 μg/m3 (20) 20.0
 
April 10, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.2 μg/m3 (16) 5.2 μg/m3 (22) 22.0
 
April 10, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.8 μg/m3 (14) 5.5 μg/m3 (23) 23.0
 
April 10, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.7 μg/m3 (12) 7.2 μg/m3 (31) 31.0
 
April 10, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.8 μg/m3 (11) 3.2 μg/m3 (14) 14.0
 
April 10, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.1 μg/m3 (11) 4.0 μg/m3 (17) 17.0
 
April 10, 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) 7.7 μg/m3 (33) 33.0
 
April 10, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (11) 5.0 μg/m3 (21) 21.0
 
April 10, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.3 μg/m3 (15) 3.0 μg/m3 (13) 15.0
 
April 10, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 11.9 μg/m3 (12) 4.8 μg/m3 (20) 20.0
 
April 9, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.7 μg/m3 (12) 6.0 μg/m3 (25) 25.0
 
April 9, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.4 μg/m3 (12) 5.6 μg/m3 (24) 24.0
 
April 9, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.6 μg/m3 (10) 8.3 μg/m3 (35) 35.0
 
April 9, 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) 7.4 μg/m3 (31) 31.0
 
April 9, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.4 μg/m3 (9) 8.3 μg/m3 (35) 35.0
 
April 9, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.9 μg/m3 (12) 5.8 μg/m3 (25) 25.0
 
April 9, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.7 μg/m3 (13) 5.4 μg/m3 (23) 23.0
 
April 9, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.9 μg/m3 (14) 7.6 μg/m3 (32) 32.0
 
April 9, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.2 μg/m3 (14) 7.3 μg/m3 (31) 31.0
 
April 9, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.6 μg/m3 (14) 4.0 μg/m3 (17) 17.0
 
April 9, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.7 μg/m3 (10) 2.7 μg/m3 (12) 12.0
 
April 9, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (11) 1.5 μg/m3 (7) 11.0
 
April 9, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.2 μg/m3 (7) 2.6 μg/m3 (11) 11.0
 
April 9, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.6 μg/m3 (8) 4.0 μg/m3 (17) 17.0
 
April 9, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.7 μg/m3 (9) 6.6 μg/m3 (28) 28.0
 
April 9, 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) 5.9 μg/m3 (25) 25.0
 
April 9, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.4 μg/m3 (14) 4.5 μg/m3 (19) 19.0
 
April 9, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.1 μg/m3 (11) 2.0 μg/m3 (9) 11.0
 
April 9, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (11) 5.1 μg/m3 (22) 22.0
 
April 9, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.8 μg/m3 (10) 4.3 μg/m3 (18) 18.0
 
April 9, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.9 μg/m3 (9) 4.9 μg/m3 (21) 21.0
 
April 9, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 7.0 μg/m3 (30) 30.0
 
April 9, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.4 μg/m3 (15) 6.4 μg/m3 (27) 27.0
 
April 9, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 7.7 μg/m3 (8) 4.2 μg/m3 (18) 18.0
 
April 8, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.7 μg/m3 (5) 5.9 μg/m3 (25) 25.0
 
April 8, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.2 μg/m3 (4) 5.5 μg/m3 (23) 23.0
 
April 8, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.6 μg/m3 (6) 5.0 μg/m3 (21) 21.0
 
April 8, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.2 μg/m3 (5) 4.0 μg/m3 (17) 17.0
 
April 8, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.6 μg/m3 (8) 3.8 μg/m3 (16) 16.0
 
April 8, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.5 μg/m3 (12) 5.4 μg/m3 (23) 23.0
 
April 8, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.7 μg/m3 (9) 2.7 μg/m3 (12) 12.0
 
April 8, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.4 μg/m3 (16) 4.5 μg/m3 (19) 19.0
 
April 8, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.2 μg/m3 (13) 5.9 μg/m3 (25) 25.0
 
April 8, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.7 μg/m3 (21) 5.9 μg/m3 (25) 25.0
 
April 8, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.7 μg/m3 (6) 3.5 μg/m3 (15) 15.0
 
April 8, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (8) 2.8 μg/m3 (12) 12.0
 
April 8, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (8) 3.9 μg/m3 (17) 17.0
 
April 8, 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) 3.6 μg/m3 (16) 16.0
 
April 8, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.6 μg/m3 (8) 4.0 μg/m3 (17) 17.0
 
April 8, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.7 μg/m3 (9) 2.1 μg/m3 (9) 9.0
 
April 8, 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) 2.6 μg/m3 (11) 11.0
 
April 8, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.3 μg/m3 (9) 2.7 μg/m3 (12) 12.0
 
April 8, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 6.5 μg/m3 (28) 28.0
 
April 8, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.5 μg/m3 (10) 5.6 μg/m3 (24) 24.0
 
April 8, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.9 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
April 8, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.6 μg/m3 (4) 4.1 μg/m3 (18) 18.0
 
April 8, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.3 μg/m3 (6) 6.2 μg/m3 (26) 26.0
 
April 8, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 12.5 μg/m3 (12) 10.2 μg/m3 (43) 43.0
 
April 7, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.5 μg/m3 (16) 8.5 μg/m3 (36) 36.0
 
April 7, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (13) 9.0 μg/m3 (38) 38.0
 
April 7, 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) 11.5 μg/m3 (48) 48.0
 
April 7, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
April 7, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.5 μg/m3 (19) N/A 19.0
 
April 7, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.3 μg/m3 (17) 7.3 μg/m3 (31) 31.0
 
April 7, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.3 μg/m3 (23) 11.0 μg/m3 (46) 46.0
 
April 7, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.2 μg/m3 (25) 9.5 μg/m3 (40) 40.0
 
April 7, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.7 μg/m3 (26) 9.6 μg/m3 (40) 40.0
 
April 7, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.4 μg/m3 (25) 7.9 μg/m3 (33) 33.0
 
April 7, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.5 μg/m3 (20) 6.4 μg/m3 (27) 27.0
 
April 7, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 18.6 μg/m3 (18) 4.5 μg/m3 (19) 19.0
 
April 7, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.1 μg/m3 (24) 6.4 μg/m3 (27) 27.0
 
April 7, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (19) 9.0 μg/m3 (38) 38.0
 
April 7, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.4 μg/m3 (20) 8.3 μg/m3 (35) 35.0
 
April 7, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.6 μg/m3 (20) 7.6 μg/m3 (32) 32.0
 
April 7, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.6 μg/m3 (22) 8.4 μg/m3 (36) 36.0
 
April 7, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.8 μg/m3 (23) 6.7 μg/m3 (28) 28.0
 
April 7, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.9 μg/m3 (24) 7.7 μg/m3 (33) 33.0
 
April 7, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.5 μg/m3 (25) 7.7 μg/m3 (33) 33.0
 
April 7, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.6 μg/m3 (26) 8.9 μg/m3 (38) 38.0
 
April 7, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.9 μg/m3 (29) 11.2 μg/m3 (47) 47.0
 
April 7, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.7 μg/m3 (14) 8.7 μg/m3 (37) 37.0
 
April 7, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 35.9 μg/m3 (34) 9.9 μg/m3 (42) 42.0
 
April 6, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.7 μg/m3 (20) 7.2 μg/m3 (31) 31.0
 
April 6, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.7 μg/m3 (22) 8.2 μg/m3 (35) 35.0
 
April 6, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.3 μg/m3 (13) 8.4 μg/m3 (36) 36.0
 
April 6, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (10) 11.5 μg/m3 (48) 48.0
 
April 6, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (22) 10.4 μg/m3 (44) 44.0
 
April 6, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.6 μg/m3 (28) -0.7 μg/m3 (0) 28.0
 
April 6, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
April 6, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 51.8 μg/m3 (48) 16.4 μg/m3 (61) 61.0
 
April 6, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 50.8 μg/m3 (48) 14.0 μg/m3 (55) 55.0
 
April 6, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 48.4 μg/m3 (45) 11.2 μg/m3 (47) 47.0
 
April 6, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.1 μg/m3 (26) 10.0 μg/m3 (42) 42.0
 
April 6, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 19.1 μg/m3 (18) 3.7 μg/m3 (16) 18.0
 
April 6, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.4 μg/m3 (16) 6.4 μg/m3 (27) 27.0
 
April 6, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.7 μg/m3 (12) 5.6 μg/m3 (24) 24.0
 
April 6, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.7 μg/m3 (10) 4.6 μg/m3 (20) 20.0
 
April 6, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.2 μg/m3 (11) 3.3 μg/m3 (14) 14.0
 
April 6, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.3 μg/m3 (12) 3.9 μg/m3 (17) 17.0
 
April 6, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.6 μg/m3 (10) 5.7 μg/m3 (24) 24.0
 
April 6, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 3.3 μg/m3 (14) 14.0
 
April 6, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.6 μg/m3 (12) 8.4 μg/m3 (36) 36.0
 
April 6, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.5 μg/m3 (22) 8.5 μg/m3 (36) 36.0
 
April 6, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 51.0 μg/m3 (48) 15.0 μg/m3 (58) 58.0
 
April 6, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.2 μg/m3 (17) 8.9 μg/m3 (38) 38.0
 
April 6, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 41.3 μg/m3 (39) 14.4 μg/m3 (56) 56.0
 
April 5, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 67.5 μg/m3 (158) 158.0
 
April 5, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.6 μg/m3 (31) 10.9 μg/m3 (46) 46.0
 
April 5, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 110.4 μg/m3 (79) 24.4 μg/m3 (77) 79.0
 
April 5, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 78.4 μg/m3 (63) 19.0 μg/m3 (66) 66.0
 
April 5, 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) 6.2 μg/m3 (26) 31.0
 
April 5, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.5 μg/m3 (10) 4.4 μg/m3 (19) 19.0
 
April 5, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.7 μg/m3 (5) 3.3 μg/m3 (14) 14.0
 
April 5, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.5 μg/m3 (23) 5.8 μg/m3 (25) 25.0
 
April 5, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.2 μg/m3 (28) 5.2 μg/m3 (22) 28.0
 
April 5, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.7 μg/m3 (15) 1.6 μg/m3 (7) 15.0
 
April 5, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.9 μg/m3 (20) 5.6 μg/m3 (24) 24.0
 
April 5, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 5.6 μg/m3 (6) -0.8 μg/m3 (0) 6.0
 
April 5, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.9 μg/m3 (7) 2.0 μg/m3 (9) 9.0
 
April 5, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.6 μg/m3 (18) 3.5 μg/m3 (15) 18.0
 
April 5, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.3 μg/m3 (8) 6.5 μg/m3 (28) 28.0
 
April 5, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.4 μg/m3 (9) 4.1 μg/m3 (18) 18.0
 
April 5, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.4 μg/m3 (10) 2.0 μg/m3 (9) 10.0
 
April 5, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.5 μg/m3 (13) 4.6 μg/m3 (20) 20.0
 
April 5, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.3 μg/m3 (10) 6.3 μg/m3 (27) 27.0
 
April 5, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.3 μg/m3 (13) 3.4 μg/m3 (15) 15.0
 
April 5, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.9 μg/m3 (12) 4.7 μg/m3 (20) 20.0
 
April 5, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 5.2 μg/m3 (22) 22.0
 
April 5, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.6 μg/m3 (15) 4.5 μg/m3 (19) 19.0
 
April 5, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 7.1 μg/m3 (7) 3.4 μg/m3 (15) 15.0
 
April 4, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.8 μg/m3 (2) 6.1 μg/m3 (26) 26.0
 
April 4, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.8 μg/m3 (7) 8.4 μg/m3 (36) 36.0
 
April 4, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A -0.9 μg/m3 (0) 7.4 μg/m3 (31) 31.0
 
April 4, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.3 μg/m3 (11) 4.3 μg/m3 (18) 18.0
 
April 4, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (7) 5.5 μg/m3 (23) 23.0
 
April 4, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.6 μg/m3 (9) 7.6 μg/m3 (32) 32.0
 
April 4, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.8 μg/m3 (10) 7.9 μg/m3 (33) 33.0
 
April 4, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.3 μg/m3 (17) 2.9 μg/m3 (13) 17.0
 
April 4, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.4 μg/m3 (18) 2.8 μg/m3 (12) 18.0
 
April 4, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.5 μg/m3 (22) 6.2 μg/m3 (26) 26.0
 
April 4, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.2 μg/m3 (7) 4.6 μg/m3 (20) 20.0
 
April 4, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 3.2 μg/m3 (14) 14.0
 
April 4, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A -2.1 μg/m3 (0) 5.2 μg/m3 (22) 22.0
 
April 4, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.4 μg/m3 (22) 7.1 μg/m3 (30) 30.0
 
April 4, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.5 μg/m3 (12) 6.5 μg/m3 (28) 28.0
 
April 4, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.3 μg/m3 (8) 3.1 μg/m3 (13) 13.0
 
April 4, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.4 μg/m3 (16) 6.6 μg/m3 (28) 28.0
 
April 4, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.8 μg/m3 (12) 3.1 μg/m3 (13) 13.0
 
April 4, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.2 μg/m3 (13) 3.0 μg/m3 (13) 13.0
 
April 4, 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) 6.9 μg/m3 (29) 29.0
 
April 4, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 31.4 μg/m3 (30) 8.1 μg/m3 (34) 34.0
 
April 4, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.4 μg/m3 (18) 8.1 μg/m3 (34) 34.0
 
April 4, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.6 μg/m3 (13) 7.5 μg/m3 (32) 32.0
 
April 4, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 16.1 μg/m3 (15) 10.2 μg/m3 (43) 43.0
 
April 3, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.9 μg/m3 (8) 7.9 μg/m3 (33) 33.0
 
April 3, 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) 9.1 μg/m3 (38) 38.0
 
April 3, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.5 μg/m3 (10) 6.8 μg/m3 (29) 29.0
 
April 3, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 9.9 μg/m3 (42) 42.0
 
April 3, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.8 μg/m3 (11) 5.6 μg/m3 (24) 24.0
 
April 3, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.7 μg/m3 (9) 7.2 μg/m3 (31) 31.0
 
April 3, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.8 μg/m3 (10) 5.4 μg/m3 (23) 23.0
 
April 3, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.7 μg/m3 (22) 5.0 μg/m3 (21) 22.0
 
April 3, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.2 μg/m3 (13) 4.9 μg/m3 (21) 21.0
 
April 3, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.7 μg/m3 (20) 11.9 μg/m3 (50) 50.0
 
April 3, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.6 μg/m3 (25) 6.4 μg/m3 (27) 27.0
 
April 3, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 4.8 μg/m3 (5) 3.9 μg/m3 (17) 17.0
 
April 3, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.6 μg/m3 (20) 4.6 μg/m3 (20) 20.0
 
April 3, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.9 μg/m3 (13) 5.0 μg/m3 (21) 21.0