ID: 1702

AQSQID: 400310651

Site Name: Lawton North

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

Updated: April 18, 2021, 3:43 a.m.

Location: Lawton (Nwest Williams Ave), OK

Reporting: True, Located: True

Current AQI: 25.0

Lawton (Nwest Williams Ave) OK, US: 34.632999, -98.428802

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
April 18, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 8.0 μg/m3 (8) 4.5 μg/m3 (19) 25.0
 
April 18, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 5.0 μg/m3 (5) 3.4 μg/m3 (15) 29.0
 
April 18, 2021, midnight N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 5.0 μg/m3 (5) 3.2 μg/m3 (14) 32.0
 
April 17, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 4.0 μg/m3 (4) 2.2 μg/m3 (10) 32.0
 
April 17, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 3.0 μg/m3 (3) 2.2 μg/m3 (10) 31.0
 
April 17, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 4.0 μg/m3 (4) 2.4 μg/m3 (10) 30.0
 
April 17, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 3.0 μg/m3 (3) 2.3 μg/m3 (10) 31.0
 
April 17, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 4.0 μg/m3 (4) 2.2 μg/m3 (10) 31.0
 
April 17, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 3.0 μg/m3 (3) 2.2 μg/m3 (10) 28.0
 
April 17, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 3.0 μg/m3 (3) 1.9 μg/m3 (8) 26.0
 
April 17, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 3.0 μg/m3 (3) 2.1 μg/m3 (9) 25.0
 
April 17, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 3.0 μg/m3 (3) 2.3 μg/m3 (10) 24.0
 
April 17, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 2.0 μg/m3 (2) 2.1 μg/m3 (9) 25.0
 
April 17, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 5.0 μg/m3 (5) 3.6 μg/m3 (16) 20.0
 
April 17, 2021, noon N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 8.0 μg/m3 (8) 6.2 μg/m3 (26) 26.0
 
April 17, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A 10.0 μg/m3 (10) 7.8 μg/m3 (33) 33.0
 
April 17, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 9.0 μg/m3 (9) 7.5 μg/m3 (32) 32.0
 
April 17, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 9.0 μg/m3 (9) 7.4 μg/m3 (31) 31.0
 
April 17, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 9.0 μg/m3 (9) 7.2 μg/m3 (31) 31.0
 
April 17, 2021, 7 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) 7.6 μg/m3 (32) 32.0
 
April 17, 2021, 6 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) 8.0 μg/m3 (34) 34.0
 
April 17, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 10.0 μg/m3 (10) 8.5 μg/m3 (36) 36.0
 
April 17, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 8.0 μg/m3 (8) 6.3 μg/m3 (27) 30.0
 
April 17, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 10.0 μg/m3 (10) 6.7 μg/m3 (28) 30.0
 
April 17, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 8.0 μg/m3 (8) 5.6 μg/m3 (24) 27.0
 
April 17, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 9.0 μg/m3 (9) 5.7 μg/m3 (24) 25.0
 
April 17, 2021, midnight N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 8.0 μg/m3 (8) 4.9 μg/m3 (21) 27.0
 
April 16, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 5.0 μg/m3 (5) 3.4 μg/m3 (15) 26.0
 
April 16, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 8.0 μg/m3 (8) 6.0 μg/m3 (25) 26.0
 
April 16, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 10.0 μg/m3 (10) 7.3 μg/m3 (31) 31.0
 
April 16, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 9.0 μg/m3 (9) 5.9 μg/m3 (25) 25.0
 
April 16, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 8.0 μg/m3 (8) 4.9 μg/m3 (21) 23.0
 
April 16, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 7.0 μg/m3 (7) 4.8 μg/m3 (20) 23.0
 
April 16, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 7.0 μg/m3 (7) 4.8 μg/m3 (20) 22.0
 
April 16, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 6.0 μg/m3 (6) 4.4 μg/m3 (19) 19.0
 
April 16, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A 8.0 μg/m3 (8) 5.5 μg/m3 (23) 23.0
 
April 16, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A 10.0 μg/m3 (10) 6.6 μg/m3 (28) 28.0
 
April 16, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 9.0 μg/m3 (9) 7.1 μg/m3 (30) 30.0
 
April 16, 2021, noon N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A 10.0 μg/m3 (10) 8.0 μg/m3 (34) 34.0
 
April 16, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 11.0 μg/m3 (11) 8.1 μg/m3 (34) 34.0
 
April 16, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) 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 20.0 ppb (19) N/A 14.0 μg/m3 (13) 8.8 μg/m3 (37) 37.0
 
April 16, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 14.0 μg/m3 (13) 8.9 μg/m3 (38) 38.0
 
April 16, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 15.0 μg/m3 (14) 9.5 μg/m3 (40) 40.0
 
April 16, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 15.0 μg/m3 (14) 10.2 μg/m3 (43) 43.0
 
April 16, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 14.0 μg/m3 (13) 9.6 μg/m3 (40) 40.0
 
April 16, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 14.0 μg/m3 (13) 9.3 μg/m3 (39) 39.0
 
April 16, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 18.0 μg/m3 (17) 12.7 μg/m3 (53) 53.0
 
April 16, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 20.0 μg/m3 (19) 14.3 μg/m3 (56) 56.0
 
April 16, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 20.0 μg/m3 (19) 14.9 μg/m3 (57) 57.0
 
April 16, 2021, midnight N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 21.0 μg/m3 (20) 15.6 μg/m3 (59) 59.0
 
April 15, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 19.0 μg/m3 (18) 13.1 μg/m3 (54) 54.0
 
April 15, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 14.0 μg/m3 (13) 8.0 μg/m3 (34) 34.0
 
April 15, 2021, 9 p.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 15, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 15.0 μg/m3 (14) 8.1 μg/m3 (34) 34.0
 
April 15, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 18.0 μg/m3 (17) 8.6 μg/m3 (36) 36.0
 
April 15, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 21.0 μg/m3 (20) 9.4 μg/m3 (40) 40.0
 
April 15, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 23.0 μg/m3 (22) 9.8 μg/m3 (41) 41.0
 
April 15, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 23.0 μg/m3 (22) 10.9 μg/m3 (46) 46.0
 
April 15, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 25.0 μg/m3 (24) 10.4 μg/m3 (44) 44.0
 
April 15, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 15.0 μg/m3 (14) 7.6 μg/m3 (32) 32.0
 
April 15, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 14.0 μg/m3 (13) 7.2 μg/m3 (31) 31.0
 
April 15, 2021, noon N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 13.0 μg/m3 (13) 7.4 μg/m3 (31) 31.0
 
April 15, 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) 7.5 μg/m3 (32) 32.0
 
April 15, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 12.0 μg/m3 (12) 7.4 μg/m3 (31) 32.0
 
April 15, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 13.0 μg/m3 (13) 8.2 μg/m3 (35) 35.0
 
April 15, 2021, 8 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 15, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 11.0 μg/m3 (11) 6.7 μg/m3 (28) 28.0
 
April 15, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 10.0 μg/m3 (10) 6.1 μg/m3 (26) 30.0
 
April 15, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 10.0 μg/m3 (10) 5.7 μg/m3 (24) 32.0
 
April 15, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 9.0 μg/m3 (9) 5.5 μg/m3 (23) 34.0
 
April 15, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 9.0 μg/m3 (9) 5.4 μg/m3 (23) 35.0
 
April 15, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 9.0 μg/m3 (9) 5.6 μg/m3 (24) 34.0
 
April 15, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 10.0 μg/m3 (10) 6.2 μg/m3 (26) 32.0
 
April 15, 2021, midnight N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 10.0 μg/m3 (10) 6.1 μg/m3 (26) 31.0
 
April 14, 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) 5.6 μg/m3 (24) 30.0
 
April 14, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 9.0 μg/m3 (9) 5.5 μg/m3 (23) 32.0
 
April 14, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 9.0 μg/m3 (9) 5.3 μg/m3 (23) 35.0
 
April 14, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 10.0 μg/m3 (10) 5.2 μg/m3 (22) 36.0
 
April 14, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 10.0 μg/m3 (10) 5.1 μg/m3 (22) 37.0
 
April 14, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 11.0 μg/m3 (11) 6.3 μg/m3 (27) 34.0
 
April 14, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 11.0 μg/m3 (11) 6.9 μg/m3 (29) 31.0
 
April 14, 2021, 4 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) 6.5 μg/m3 (28) 29.0
 
April 14, 2021, 3 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) 5.9 μg/m3 (25) 30.0
 
April 14, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 10.0 μg/m3 (10) 6.2 μg/m3 (26) 30.0
 
April 14, 2021, 1 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) 6.9 μg/m3 (29) 31.0
 
April 14, 2021, noon N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 10.0 μg/m3 (10) 7.1 μg/m3 (30) 33.0
 
April 14, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 9.0 μg/m3 (9) 5.5 μg/m3 (23) 34.0
 
April 14, 2021, 10 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) 4.8 μg/m3 (20) 37.0
 
April 14, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 7.0 μg/m3 (7) 4.5 μg/m3 (19) 36.0
 
April 14, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 8.0 μg/m3 (8) 5.4 μg/m3 (23) 36.0
 
April 14, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 11.0 μg/m3 (11) 7.3 μg/m3 (31) 37.0
 
April 14, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 18.0 μg/m3 (17) 12.7 μg/m3 (53) 53.0
 
April 14, 2021, 5 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) 7.5 μg/m3 (32) 36.0
 
April 14, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 11.0 μg/m3 (11) 5.9 μg/m3 (25) 36.0
 
April 14, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 12.0 μg/m3 (12) 5.7 μg/m3 (24) 38.0
 
April 14, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 15.0 μg/m3 (14) 6.8 μg/m3 (29) 37.0
 
April 14, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 17.0 μg/m3 (16) 6.9 μg/m3 (29) 39.0
 
April 14, 2021, midnight N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 21.0 μg/m3 (20) 6.7 μg/m3 (28) 42.0
 
April 13, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 30.0 μg/m3 (28) 7.2 μg/m3 (31) 46.0
 
April 13, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A 30.0 μg/m3 (28) 6.5 μg/m3 (28) 50.0
 
April 13, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A 34.0 μg/m3 (32) 6.7 μg/m3 (28) 50.0
 
April 13, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A 48.0 μg/m3 (45) 8.6 μg/m3 (36) 55.0
 
April 13, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A 31.0 μg/m3 (29) 8.2 μg/m3 (35) 55.0
 
April 13, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A 29.0 μg/m3 (27) 7.9 μg/m3 (33) 51.0
 
April 13, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 31.0 μg/m3 (29) 10.7 μg/m3 (45) 49.0
 
April 13, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 30.0 μg/m3 (28) 11.9 μg/m3 (50) 50.0
 
April 13, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 31.0 μg/m3 (29) 12.8 μg/m3 (53) 53.0
 
April 13, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 33.0 μg/m3 (31) 12.7 μg/m3 (53) 53.0
 
April 13, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 30.0 μg/m3 (28) 16.7 μg/m3 (61) 61.0
 
April 13, 2021, noon N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 31.0 μg/m3 (29) 19.4 μg/m3 (67) 67.0
 
April 13, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 36.0 μg/m3 (34) 26.1 μg/m3 (81) 81.0
 
April 13, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 58.0 μg/m3 (53) 39.6 μg/m3 (112) 112.0
 
April 13, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 47.0 μg/m3 (44) 29.3 μg/m3 (88) 88.0
 
April 13, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 35.0 μg/m3 (33) 17.3 μg/m3 (62) 62.0
 
April 13, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 31.0 μg/m3 (29) 14.3 μg/m3 (56) 56.0
 
April 13, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 38.0 μg/m3 (36) 15.8 μg/m3 (59) 59.0
 
April 13, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 34.0 μg/m3 (32) 16.6 μg/m3 (61) 61.0
 
April 13, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 39.0 μg/m3 (37) 11.4 μg/m3 (48) 48.0
 
April 13, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 38.0 μg/m3 (36) 12.4 μg/m3 (52) 52.0
 
April 13, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 28.0 μg/m3 (26) 8.1 μg/m3 (34) 39.0
 
April 13, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 24.0 μg/m3 (23) 10.0 μg/m3 (42) 43.0
 
April 13, 2021, midnight N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 22.0 μg/m3 (21) 6.9 μg/m3 (29) 42.0
 
April 12, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 22.0 μg/m3 (21) 6.2 μg/m3 (26) 42.0
 
April 12, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 27.0 μg/m3 (25) 6.7 μg/m3 (28) 44.0
 
April 12, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 25.0 μg/m3 (24) 6.9 μg/m3 (29) 45.0
 
April 12, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 22.0 μg/m3 (21) 6.6 μg/m3 (28) 46.0
 
April 12, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 25.0 μg/m3 (24) 6.5 μg/m3 (28) 45.0
 
April 12, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 25.0 μg/m3 (24) 6.6 μg/m3 (28) 45.0
 
April 12, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 24.0 μg/m3 (23) 6.8 μg/m3 (29) 44.0
 
April 12, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 27.0 μg/m3 (25) 7.7 μg/m3 (33) 42.0
 
April 12, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 32.0 μg/m3 (30) 8.1 μg/m3 (34) 40.0
 
April 12, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 24.0 μg/m3 (23) 7.2 μg/m3 (31) 38.0
 
April 12, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 24.0 μg/m3 (23) 6.8 μg/m3 (29) 38.0
 
April 12, 2021, noon N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 21.0 μg/m3 (20) 6.3 μg/m3 (27) 37.0
 
April 12, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 23.0 μg/m3 (22) 6.5 μg/m3 (28) 36.0
 
April 12, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 25.0 μg/m3 (24) 7.6 μg/m3 (32) 36.0
 
April 12, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 33.0 μg/m3 (31) 12.2 μg/m3 (52) 52.0
 
April 12, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 35.0 μg/m3 (33) 13.2 μg/m3 (54) 54.0
 
April 12, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 30.0 μg/m3 (28) 8.7 μg/m3 (37) 39.0
 
April 12, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 30.0 μg/m3 (28) 8.3 μg/m3 (35) 45.0
 
April 12, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 35.0 μg/m3 (33) 8.8 μg/m3 (37) 46.0
 
April 12, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 38.0 μg/m3 (36) 9.8 μg/m3 (41) 43.0
 
April 12, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 44.0 μg/m3 (41) 11.9 μg/m3 (50) 50.0
 
April 12, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 53.0 μg/m3 (50) 14.4 μg/m3 (56) 56.0
 
April 12, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 43.0 μg/m3 (40) 10.5 μg/m3 (44) 44.0
 
April 12, 2021, midnight N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A 32.0 μg/m3 (30) 9.6 μg/m3 (40) 55.0
 
April 11, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (78) N/A 25.0 μg/m3 (24) 7.4 μg/m3 (31) 78.0
 
April 11, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (78) N/A 24.0 μg/m3 (23) 6.9 μg/m3 (29) 78.0
 
April 11, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A 22.0 μg/m3 (21) 6.3 μg/m3 (27) 74.0
 
April 11, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A 22.0 μg/m3 (21) 6.1 μg/m3 (26) 71.0
 
April 11, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A 22.0 μg/m3 (21) 5.8 μg/m3 (25) 61.0
 
April 11, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A 21.0 μg/m3 (20) 5.2 μg/m3 (22) 55.0
 
April 11, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A 19.0 μg/m3 (18) 4.6 μg/m3 (20) 50.0
 
April 11, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 16.0 μg/m3 (15) 3.9 μg/m3 (17) 49.0
 
April 11, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 17.0 μg/m3 (16) 4.1 μg/m3 (18) 45.0
 
April 11, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 19.0 μg/m3 (18) 4.4 μg/m3 (19) 38.0
 
April 11, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 24.0 μg/m3 (23) 6.1 μg/m3 (26) 28.0
 
April 11, 2021, noon N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A 25.0 μg/m3 (24) 7.5 μg/m3 (32) 32.0
 
April 11, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A 22.0 μg/m3 (21) 6.9 μg/m3 (29) 29.0
 
April 11, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A 23.0 μg/m3 (22) 7.1 μg/m3 (30) 30.0
 
April 11, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A 21.0 μg/m3 (20) 6.7 μg/m3 (28) 28.0
 
April 11, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 23.0 μg/m3 (22) 7.1 μg/m3 (30) 30.0
 
April 11, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 22.0 μg/m3 (21) 6.2 μg/m3 (26) 26.0
 
April 11, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 23.0 μg/m3 (22) 6.1 μg/m3 (26) 33.0
 
April 11, 2021, 5 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) 6.1 μg/m3 (26) 34.0
 
April 11, 2021, 4 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) 7.7 μg/m3 (33) 33.0
 
April 11, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 30.0 μg/m3 (28) 10.7 μg/m3 (45) 45.0