ID: 2678

AQSQID: 401470217

Site Name: Copan

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

Updated: April 22, 2021, 9:43 a.m.

Location: Copan (N4000 Rd), OK

Reporting: True, Located: True

Current AQI: 42.0

Copan (N4000 Rd) OK, US: 36.908115, -95.88235

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
April 22, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 18.0 μg/m3 (17) 10.0 μg/m3 (42) 42.0
 
April 22, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 18.0 μg/m3 (17) 10.5 μg/m3 (44) 44.0
 
April 22, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 22.0 μg/m3 (21) 12.7 μg/m3 (53) 53.0
 
April 22, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 23.0 μg/m3 (22) 15.0 μg/m3 (58) 58.0
 
April 22, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 26.0 μg/m3 (25) 17.4 μg/m3 (63) 63.0
 
April 22, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 20.0 μg/m3 (19) 12.4 μg/m3 (52) 52.0
 
April 22, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 20.0 μg/m3 (19) 8.7 μg/m3 (37) 37.0
 
April 22, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 15.0 μg/m3 (14) 6.2 μg/m3 (26) 39.0
 
April 22, 2021, midnight N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 16.0 μg/m3 (15) 9.4 μg/m3 (40) 43.0
 
April 21, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 12.0 μg/m3 (12) 5.7 μg/m3 (24) 45.0
 
April 21, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 8.0 μg/m3 (8) 3.4 μg/m3 (15) 44.0
 
April 21, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 8.0 μg/m3 (8) 3.5 μg/m3 (15) 43.0
 
April 21, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 6.0 μg/m3 (6) 3.0 μg/m3 (13) 42.0
 
April 21, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 6.0 μg/m3 (6) 2.8 μg/m3 (12) 41.0
 
April 21, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 6.0 μg/m3 (6) 2.8 μg/m3 (12) 39.0
 
April 21, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 6.0 μg/m3 (6) 3.0 μg/m3 (13) 36.0
 
April 21, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 7.0 μg/m3 (7) 3.8 μg/m3 (16) 29.0
 
April 21, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 9.0 μg/m3 (9) 4.4 μg/m3 (19) 25.0
 
April 21, 2021, noon N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 9.0 μg/m3 (9) 4.3 μg/m3 (18) 21.0
 
April 21, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 9.0 μg/m3 (9) 4.3 μg/m3 (18) 24.0
 
April 21, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 10.0 μg/m3 (10) 4.8 μg/m3 (20) 25.0
 
April 21, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 10.0 μg/m3 (10) 5.0 μg/m3 (21) 24.0
 
April 21, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 10.0 μg/m3 (10) 4.9 μg/m3 (21) 26.0
 
April 21, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 9.0 μg/m3 (9) 4.8 μg/m3 (20) 27.0
 
April 21, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 9.0 μg/m3 (9) 4.7 μg/m3 (20) 29.0
 
April 21, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 9.0 μg/m3 (9) 4.1 μg/m3 (18) 32.0
 
April 21, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 9.0 μg/m3 (9) 3.9 μg/m3 (17) 31.0
 
April 21, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 10.0 μg/m3 (10) 3.9 μg/m3 (17) 36.0
 
April 21, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 9.0 μg/m3 (9) 4.1 μg/m3 (18) 37.0
 
April 21, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 8.0 μg/m3 (8) 3.6 μg/m3 (16) 37.0
 
April 21, 2021, midnight N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 8.0 μg/m3 (8) 3.4 μg/m3 (15) 40.0
 
April 20, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 8.0 μg/m3 (8) 3.5 μg/m3 (15) 40.0
 
April 20, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 8.0 μg/m3 (8) 3.7 μg/m3 (16) 40.0
 
April 20, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 9.0 μg/m3 (9) 4.2 μg/m3 (18) 39.0
 
April 20, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 8.0 μg/m3 (8) 4.1 μg/m3 (18) 38.0
 
April 20, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 7.0 μg/m3 (7) 4.3 μg/m3 (18) 34.0
 
April 20, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 5.0 μg/m3 (5) 3.7 μg/m3 (16) 32.0
 
April 20, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 5.0 μg/m3 (5) 3.5 μg/m3 (15) 30.0
 
April 20, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 4.0 μg/m3 (4) 3.3 μg/m3 (14) 26.0
 
April 20, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 7.0 μg/m3 (7) 4.6 μg/m3 (20) 29.0
 
April 20, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 9.0 μg/m3 (9) 5.5 μg/m3 (23) 29.0
 
April 20, 2021, noon N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 12.0 μg/m3 (12) 7.3 μg/m3 (31) 31.0
 
April 20, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 12.0 μg/m3 (12) 7.0 μg/m3 (30) 30.0
 
April 20, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 11.0 μg/m3 (11) 6.5 μg/m3 (28) 29.0
 
April 20, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 11.0 μg/m3 (11) 6.2 μg/m3 (26) 29.0
 
April 20, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 10.0 μg/m3 (10) 5.6 μg/m3 (24) 28.0
 
April 20, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 12.0 μg/m3 (12) 6.6 μg/m3 (28) 28.0
 
April 20, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 15.0 μg/m3 (14) 7.9 μg/m3 (33) 33.0
 
April 20, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 15.0 μg/m3 (14) 7.6 μg/m3 (32) 32.0
 
April 20, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 20.0 μg/m3 (19) 8.1 μg/m3 (34) 34.0
 
April 20, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 19.0 μg/m3 (18) 10.0 μg/m3 (42) 42.0
 
April 20, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 23.0 μg/m3 (22) 13.5 μg/m3 (54) 54.0
 
April 20, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 24.0 μg/m3 (23) 15.2 μg/m3 (58) 58.0
 
April 20, 2021, midnight N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 57.0 μg/m3 (52) 42.7 μg/m3 (119) 119.0
 
April 19, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 33.0 μg/m3 (31) 21.4 μg/m3 (71) 71.0
 
April 19, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A 13.0 μg/m3 (13) 6.8 μg/m3 (29) 55.0
 
April 19, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A 12.0 μg/m3 (12) 5.4 μg/m3 (23) 50.0
 
April 19, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A 12.0 μg/m3 (12) 5.0 μg/m3 (21) 50.0
 
April 19, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A 12.0 μg/m3 (12) 5.4 μg/m3 (23) 51.0
 
April 19, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A 11.0 μg/m3 (11) 5.4 μg/m3 (23) 50.0
 
April 19, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 12.0 μg/m3 (12) 5.1 μg/m3 (22) 49.0
 
April 19, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 12.0 μg/m3 (12) 5.4 μg/m3 (23) 46.0
 
April 19, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 12.0 μg/m3 (12) 5.6 μg/m3 (24) 40.0
 
April 19, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 14.0 μg/m3 (13) 7.2 μg/m3 (31) 31.0
 
April 19, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 12.0 μg/m3 (12) 7.3 μg/m3 (31) 31.0
 
April 19, 2021, noon N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 13.0 μg/m3 (13) 7.8 μg/m3 (33) 33.0
 
April 19, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 13.0 μg/m3 (13) 8.2 μg/m3 (35) 35.0
 
April 19, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 12.0 μg/m3 (12) 7.8 μg/m3 (33) 33.0
 
April 19, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 12.0 μg/m3 (12) 8.2 μg/m3 (35) 35.0
 
April 19, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 14.0 μg/m3 (13) 8.9 μg/m3 (38) 38.0
 
April 19, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 12.0 μg/m3 (12) 6.9 μg/m3 (29) 30.0
 
April 19, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 14.0 μg/m3 (13) 7.9 μg/m3 (33) 33.0
 
April 19, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 10.0 μg/m3 (10) 6.5 μg/m3 (28) 34.0
 
April 19, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 10.0 μg/m3 (10) 5.8 μg/m3 (25) 35.0
 
April 19, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 13.0 μg/m3 (13) 6.9 μg/m3 (29) 36.0
 
April 19, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 11.0 μg/m3 (11) 5.3 μg/m3 (23) 35.0
 
April 19, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 7.0 μg/m3 (7) 3.2 μg/m3 (14) 38.0
 
April 19, 2021, midnight N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 8.0 μg/m3 (8) 3.1 μg/m3 (13) 39.0
 
April 18, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 6.0 μg/m3 (6) 2.9 μg/m3 (13) 40.0
 
April 18, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 6.0 μg/m3 (6) 2.8 μg/m3 (12) 40.0
 
April 18, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 9.0 μg/m3 (9) 4.9 μg/m3 (21) 39.0
 
April 18, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 10.0 μg/m3 (10) 6.3 μg/m3 (27) 40.0
 
April 18, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 5.0 μg/m3 (5) 2.3 μg/m3 (10) 38.0
 
April 18, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 4.0 μg/m3 (4) 1.5 μg/m3 (7) 37.0
 
April 18, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 4.0 μg/m3 (4) 2.0 μg/m3 (9) 37.0
 
April 18, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 5.0 μg/m3 (5) 2.7 μg/m3 (12) 37.0
 
April 18, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 7.0 μg/m3 (7) 3.6 μg/m3 (16) 35.0
 
April 18, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 7.0 μg/m3 (7) 3.8 μg/m3 (16) 29.0
 
April 18, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 7.0 μg/m3 (7) 4.2 μg/m3 (18) 25.0
 
April 18, 2021, noon N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 8.0 μg/m3 (8) 4.8 μg/m3 (20) 21.0
 
April 18, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 8.0 μg/m3 (8) 4.7 μg/m3 (20) 20.0
 
April 18, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 8.0 μg/m3 (8) 4.6 μg/m3 (20) 20.0
 
April 18, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 8.0 μg/m3 (8) 4.8 μg/m3 (20) 20.0
 
April 18, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 9.0 μg/m3 (9) 5.1 μg/m3 (22) 22.0
 
April 18, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 10.0 μg/m3 (10) 5.5 μg/m3 (23) 23.0
 
April 18, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 9.0 μg/m3 (9) 5.7 μg/m3 (24) 24.0
 
April 18, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 11.0 μg/m3 (11) 6.1 μg/m3 (26) 26.0
 
April 18, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 13.0 μg/m3 (13) 9.0 μg/m3 (38) 38.0
 
April 18, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 12.0 μg/m3 (12) 8.0 μg/m3 (34) 34.0
 
April 18, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 10.0 μg/m3 (10) 7.0 μg/m3 (30) 30.0
 
April 18, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 10.0 μg/m3 (10) 6.5 μg/m3 (28) 28.0
 
April 18, 2021, midnight N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 9.0 μg/m3 (9) 6.5 μg/m3 (28) 28.0
 
April 17, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 10.0 μg/m3 (10) 6.6 μg/m3 (28) 28.0
 
April 17, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 10.0 μg/m3 (10) 6.1 μg/m3 (26) 29.0
 
April 17, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 11.0 μg/m3 (11) 6.7 μg/m3 (28) 29.0
 
April 17, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 11.0 μg/m3 (11) 8.2 μg/m3 (35) 35.0
 
April 17, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 12.0 μg/m3 (12) 9.0 μg/m3 (38) 38.0
 
April 17, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 12.0 μg/m3 (12) 9.3 μg/m3 (39) 39.0
 
April 17, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 15.0 μg/m3 (14) 11.7 μg/m3 (49) 49.0
 
April 17, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 16.0 μg/m3 (15) 13.2 μg/m3 (54) 54.0
 
April 17, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 15.0 μg/m3 (14) 12.7 μg/m3 (53) 53.0
 
April 17, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A 16.0 μg/m3 (15) 13.8 μg/m3 (55) 55.0
 
April 17, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A 14.0 μg/m3 (13) 11.8 μg/m3 (50) 50.0
 
April 17, 2021, noon N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A 16.0 μg/m3 (15) 12.5 μg/m3 (52) 52.0
 
April 17, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A 16.0 μg/m3 (15) 12.3 μg/m3 (52) 52.0
 
April 17, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 14.0 μg/m3 (13) 11.1 μg/m3 (47) 47.0
 
April 17, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 13.0 μg/m3 (13) 10.5 μg/m3 (44) 44.0
 
April 17, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 13.0 μg/m3 (13) 9.5 μg/m3 (40) 40.0
 
April 17, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 13.0 μg/m3 (13) 9.7 μg/m3 (41) 41.0
 
April 17, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 12.0 μg/m3 (12) 9.4 μg/m3 (40) 40.0
 
April 17, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 10.0 μg/m3 (10) 7.0 μg/m3 (30) 30.0
 
April 17, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 7.0 μg/m3 (7) 5.0 μg/m3 (21) 25.0
 
April 17, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 7.0 μg/m3 (7) 4.6 μg/m3 (20) 25.0
 
April 17, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 7.0 μg/m3 (7) 4.9 μg/m3 (21) 25.0
 
April 17, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 5.0 μg/m3 (5) 3.4 μg/m3 (15) 25.0
 
April 17, 2021, midnight N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 7.0 μg/m3 (7) 4.3 μg/m3 (18) 28.0
 
April 16, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 9.0 μg/m3 (9) 6.1 μg/m3 (26) 30.0
 
April 16, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 9.0 μg/m3 (9) 6.0 μg/m3 (25) 31.0
 
April 16, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 10.0 μg/m3 (10) 6.0 μg/m3 (25) 31.0
 
April 16, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 10.0 μg/m3 (10) 5.8 μg/m3 (25) 32.0
 
April 16, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 9.0 μg/m3 (9) 5.4 μg/m3 (23) 29.0
 
April 16, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 10.0 μg/m3 (10) 5.6 μg/m3 (24) 29.0
 
April 16, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 8.0 μg/m3 (8) 4.6 μg/m3 (20) 29.0
 
April 16, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 8.0 μg/m3 (8) 5.0 μg/m3 (21) 27.0
 
April 16, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 9.0 μg/m3 (9) 5.5 μg/m3 (23) 26.0
 
April 16, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 10.0 μg/m3 (10) 6.3 μg/m3 (27) 27.0
 
April 16, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 11.0 μg/m3 (11) 7.4 μg/m3 (31) 31.0
 
April 16, 2021, noon N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 14.0 μg/m3 (13) 9.7 μg/m3 (41) 41.0
 
April 16, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 15.0 μg/m3 (14) 10.6 μg/m3 (45) 45.0
 
April 16, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 13.0 μg/m3 (13) 8.8 μg/m3 (37) 37.0
 
April 16, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 13.0 μg/m3 (13) 8.6 μg/m3 (36) 36.0
 
April 16, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 13.0 μg/m3 (13) 8.0 μg/m3 (34) 34.0
 
April 16, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 13.0 μg/m3 (13) 7.6 μg/m3 (32) 32.0
 
April 16, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 14.0 μg/m3 (13) 7.1 μg/m3 (30) 30.0
 
April 16, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 24.0 μg/m3 (23) 11.1 μg/m3 (47) 47.0
 
April 16, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 26.0 μg/m3 (25) 11.2 μg/m3 (47) 47.0
 
April 16, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 33.0 μg/m3 (31) 11.2 μg/m3 (47) 47.0
 
April 16, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 40.0 μg/m3 (38) 9.3 μg/m3 (39) 39.0
 
April 16, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 36.0 μg/m3 (34) 9.0 μg/m3 (38) 38.0
 
April 16, 2021, midnight N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 31.0 μg/m3 (29) 8.2 μg/m3 (35) 37.0
 
April 15, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 32.0 μg/m3 (30) 8.0 μg/m3 (34) 37.0
 
April 15, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 37.0 μg/m3 (35) 9.8 μg/m3 (41) 41.0
 
April 15, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 28.0 μg/m3 (26) 7.1 μg/m3 (30) 37.0
 
April 15, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 33.0 μg/m3 (31) 8.2 μg/m3 (35) 36.0
 
April 15, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 33.0 μg/m3 (31) 8.8 μg/m3 (37) 37.0
 
April 15, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 36.0 μg/m3 (34) 10.4 μg/m3 (44) 44.0
 
April 15, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 34.0 μg/m3 (32) 10.6 μg/m3 (45) 45.0
 
April 15, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 32.0 μg/m3 (30) 10.6 μg/m3 (45) 45.0
 
April 15, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 30.0 μg/m3 (28) 11.1 μg/m3 (47) 47.0
 
April 15, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 31.0 μg/m3 (29) 10.6 μg/m3 (45) 45.0
 
April 15, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 34.0 μg/m3 (32) 10.1 μg/m3 (43) 43.0
 
April 15, 2021, noon N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 30.0 μg/m3 (28) 9.1 μg/m3 (38) 38.0
 
April 15, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 23.0 μg/m3 (22) 8.6 μg/m3 (36) 36.0
 
April 15, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 26.0 μg/m3 (25) 9.6 μg/m3 (40) 40.0
 
April 15, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 28.0 μg/m3 (26) 11.2 μg/m3 (47) 47.0
 
April 15, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 28.0 μg/m3 (26) 11.6 μg/m3 (49) 49.0
 
April 15, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 31.0 μg/m3 (29) 12.2 μg/m3 (52) 52.0
 
April 15, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 39.0 μg/m3 (37) 13.5 μg/m3 (54) 54.0