ID: 1302

AQSQID: 000091301

Site Name: Tomahawk

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

Updated: Sept. 27, 2020, 8:39 a.m.

Location: Alberta (Yellowhead Co), CC

Reporting: True, Located: True

Current AQI: 27.0

Alberta (Yellowhead Co) CC, CA: 53.37, -115.1906

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 27, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 2.9 μg/m3 (12) 27.0
 
Sept. 27, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 2.5 μg/m3 (10) 28.0
 
Sept. 27, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 2.6 μg/m3 (11) 28.0
 
Sept. 27, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 2.5 μg/m3 (10) 29.0
 
Sept. 27, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 1.9 μg/m3 (8) 29.0
 
Sept. 27, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 1.8 μg/m3 (8) 29.0
 
Sept. 27, 2020, midnight N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 1.4 μg/m3 (6) 30.0
 
Sept. 26, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 1.8 μg/m3 (8) 31.0
 
Sept. 26, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 1.2 μg/m3 (5) 29.0
 
Sept. 26, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 1.3 μg/m3 (5) 28.0
 
Sept. 26, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 1.3 μg/m3 (5) 28.0
 
Sept. 26, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 0.9 μg/m3 (4) 27.0
 
Sept. 26, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 0.9 μg/m3 (4) 25.0
 
Sept. 26, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 0.9 μg/m3 (4) 24.0
 
Sept. 26, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 0.8 μg/m3 (3) 21.0
 
Sept. 26, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 1.1 μg/m3 (5) 19.0
 
Sept. 26, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 0.9 μg/m3 (4) 19.0
 
Sept. 26, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 0.5 μg/m3 (2) 22.0
 
Sept. 26, 2020, noon N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 0.5 μg/m3 (2) 22.0
 
Sept. 26, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 0.7 μg/m3 (3) 22.0
 
Sept. 26, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.6 μg/m3 (2) 2.0
 
Sept. 26, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 0.4 μg/m3 (2) 19.0
 
Sept. 26, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 0.3 μg/m3 (1) 18.0
 
Sept. 26, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 0.6 μg/m3 (2) 17.0
 
Sept. 26, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 0.7 μg/m3 (3) 18.0
 
Sept. 26, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 0.9 μg/m3 (4) 18.0
 
Sept. 26, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 1.1 μg/m3 (5) 20.0
 
Sept. 26, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 2.8 μg/m3 (12) 19.0
 
Sept. 26, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 2.2 μg/m3 (9) 18.0
 
Sept. 26, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 2.4 μg/m3 (10) 21.0
 
Sept. 26, 2020, midnight N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 1.3 μg/m3 (5) 22.0
 
Sept. 25, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 0.8 μg/m3 (3) 25.0
 
Sept. 25, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 0.6 μg/m3 (2) 25.0
 
Sept. 25, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 0.8 μg/m3 (3) 26.0
 
Sept. 25, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 0.9 μg/m3 (4) 28.0
 
Sept. 25, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 0.7 μg/m3 (3) 28.0
 
Sept. 25, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 0.7 μg/m3 (3) 28.0
 
Sept. 25, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 0.8 μg/m3 (3) 21.0
 
Sept. 25, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 1.5 μg/m3 (6) 17.0
 
Sept. 25, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 1.6 μg/m3 (7) 14.0
 
Sept. 25, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A N/A 1.1 μg/m3 (5) 8.0
 
Sept. 25, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 0.4 μg/m3 (2) 14.0
 
Sept. 25, 2020, noon N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 0.3 μg/m3 (1) 17.0
 
Sept. 25, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 0.3 μg/m3 (1) 18.0
 
Sept. 25, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.5 μg/m3 (2) 2.0
 
Sept. 25, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 0.4 μg/m3 (2) 20.0
 
Sept. 25, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 0.8 μg/m3 (3) 21.0
 
Sept. 25, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 1.1 μg/m3 (5) 21.0
 
Sept. 25, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 0.8 μg/m3 (3) 22.0
 
Sept. 25, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 0.8 μg/m3 (3) 22.0
 
Sept. 25, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 1.2 μg/m3 (5) 23.0
 
Sept. 25, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 0.9 μg/m3 (4) 25.0
 
Sept. 25, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 0.5 μg/m3 (2) 28.0
 
Sept. 25, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 0.6 μg/m3 (2) 29.0
 
Sept. 25, 2020, midnight N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 0.6 μg/m3 (2) 29.0
 
Sept. 24, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 0.6 μg/m3 (2) 30.0
 
Sept. 24, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 0.7 μg/m3 (3) 30.0
 
Sept. 24, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 0.8 μg/m3 (3) 31.0
 
Sept. 24, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 0.6 μg/m3 (2) 31.0
 
Sept. 24, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 0.5 μg/m3 (2) 32.0
 
Sept. 24, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 0.2 μg/m3 (1) 30.0
 
Sept. 24, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 0.5 μg/m3 (2) 30.0
 
Sept. 24, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 0.9 μg/m3 (4) 27.0
 
Sept. 24, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 2.0 μg/m3 (8) 17.0
 
Sept. 24, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 2.0 μg/m3 (8) 13.0
 
Sept. 24, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 2.8 μg/m3 (12) 15.0
 
Sept. 24, 2020, noon N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A N/A 5.2 μg/m3 (22) 22.0
 
Sept. 24, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A N/A 7.4 μg/m3 (31) 31.0
 
Sept. 24, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.7 μg/m3 (40) 40.0
 
Sept. 24, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 9.2 μg/m3 (38) 38.0
 
Sept. 24, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 9.5 μg/m3 (40) 40.0
 
Sept. 24, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 10.1 μg/m3 (42) 42.0
 
Sept. 24, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 10.9 μg/m3 (45) 45.0
 
Sept. 24, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 9.4 μg/m3 (39) 39.0
 
Sept. 24, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 8.8 μg/m3 (37) 37.0
 
Sept. 24, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 7.8 μg/m3 (32) 32.0
 
Sept. 24, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 7.6 μg/m3 (32) 32.0
 
Sept. 24, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 6.9 μg/m3 (29) 29.0
 
Sept. 23, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 5.8 μg/m3 (24) 29.0
 
Sept. 23, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 4.8 μg/m3 (20) 30.0
 
Sept. 23, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 3.9 μg/m3 (16) 28.0
 
Sept. 23, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 4.7 μg/m3 (20) 25.0
 
Sept. 23, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 4.8 μg/m3 (20) 22.0
 
Sept. 23, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 5.9 μg/m3 (25) 25.0
 
Sept. 23, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 23, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A N/A 5.2 μg/m3 (22) 22.0
 
Sept. 23, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A N/A 5.5 μg/m3 (23) 23.0
 
Sept. 23, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A N/A 5.3 μg/m3 (22) 22.0
 
Sept. 23, 2020, noon N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A N/A 7.2 μg/m3 (30) 30.0
 
Sept. 23, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A N/A 3.8 μg/m3 (16) 16.0
 
Sept. 23, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.1 μg/m3 (17) 17.0
 
Sept. 23, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 4.3 μg/m3 (18) 18.0
 
Sept. 23, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 3.9 μg/m3 (16) 18.0
 
Sept. 23, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 4.2 μg/m3 (18) 19.0
 
Sept. 23, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 4.0 μg/m3 (17) 19.0
 
Sept. 23, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 4.3 μg/m3 (18) 22.0
 
Sept. 23, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 3.4 μg/m3 (14) 24.0
 
Sept. 23, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 4.5 μg/m3 (19) 25.0
 
Sept. 23, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 4.0 μg/m3 (17) 26.0
 
Sept. 23, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 3.5 μg/m3 (15) 27.0
 
Sept. 23, 2020, midnight N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 2.7 μg/m3 (11) 31.0
 
Sept. 22, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 1.8 μg/m3 (8) 32.0
 
Sept. 22, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 1.4 μg/m3 (6) 32.0
 
Sept. 22, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 1.0 μg/m3 (4) 32.0
 
Sept. 22, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 0.6 μg/m3 (2) 30.0
 
Sept. 22, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 0.4 μg/m3 (2) 27.0
 
Sept. 22, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 0.5 μg/m3 (2) 21.0
 
Sept. 22, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 0.5 μg/m3 (2) 18.0
 
Sept. 22, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 0.8 μg/m3 (3) 12.0
 
Sept. 22, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A N/A 0.7 μg/m3 (3) 9.0
 
Sept. 22, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 0.5 μg/m3 (2) 13.0
 
Sept. 22, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 0.4 μg/m3 (2) 16.0
 
Sept. 22, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 0.4 μg/m3 (2) 21.0
 
Sept. 22, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 0.6 μg/m3 (2) 23.0
 
Sept. 22, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 0.7 μg/m3 (3) 22.0
 
Sept. 22, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 0.3 μg/m3 (1) 25.0
 
Sept. 22, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 0.5 μg/m3 (2) 26.0
 
Sept. 22, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 0.8 μg/m3 (3) 25.0
 
Sept. 22, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 0.8 μg/m3 (3) 28.0
 
Sept. 22, 2020, midnight N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 0.3 μg/m3 (1) 29.0
 
Sept. 21, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 0.3 μg/m3 (1) 30.0
 
Sept. 21, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 0.2 μg/m3 (1) 28.0
 
Sept. 21, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 0.2 μg/m3 (1) 28.0
 
Sept. 21, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 0.2 μg/m3 (1) 28.0
 
Sept. 21, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 0.1 μg/m3 (0) 28.0
 
Sept. 21, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 0.2 μg/m3 (1) 25.0
 
Sept. 21, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 0.5 μg/m3 (2) 22.0
 
Sept. 21, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 0.6 μg/m3 (2) 21.0
 
Sept. 21, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 0.6 μg/m3 (2) 15.0
 
Sept. 21, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A N/A 0.7 μg/m3 (3) 9.0
 
Sept. 21, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A N/A 0.7 μg/m3 (3) 4.0
 
Sept. 21, 2020, noon N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A N/A 0.7 μg/m3 (3) 3.0
 
Sept. 21, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A N/A 0.5 μg/m3 (2) 9.0
 
Sept. 21, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.6 μg/m3 (2) 2.0
 
Sept. 21, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A N/A 0.5 μg/m3 (2) 8.0
 
Sept. 21, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A N/A 0.6 μg/m3 (2) 9.0
 
Sept. 21, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A N/A 0.6 μg/m3 (2) 10.0
 
Sept. 21, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A N/A 0.7 μg/m3 (3) 12.0
 
Sept. 21, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 0.7 μg/m3 (3) 14.0
 
Sept. 21, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 1.3 μg/m3 (5) 15.0
 
Sept. 21, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 0.9 μg/m3 (4) 23.0
 
Sept. 21, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 0.4 μg/m3 (2) 24.0
 
Sept. 21, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 0.3 μg/m3 (1) 24.0
 
Sept. 21, 2020, midnight N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 0.4 μg/m3 (2) 25.0
 
Sept. 20, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 0.6 μg/m3 (2) 25.0
 
Sept. 20, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 0.7 μg/m3 (3) 25.0
 
Sept. 20, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 1.4 μg/m3 (6) 21.0
 
Sept. 20, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 2.6 μg/m3 (11) 18.0
 
Sept. 20, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 5.3 μg/m3 (22) 22.0
 
Sept. 20, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 7.6 μg/m3 (32) 32.0
 
Sept. 20, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 9.8 μg/m3 (41) 41.0
 
Sept. 20, 2020, noon N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 11.0 μg/m3 (46) 46.0
 
Sept. 20, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 12.1 μg/m3 (50) 50.0
 
Sept. 20, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.5 μg/m3 (44) 44.0
 
Sept. 20, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 9.8 μg/m3 (41) 41.0
 
Sept. 20, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 10.6 μg/m3 (44) 44.0
 
Sept. 20, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 17.9 μg/m3 (63) 63.0
 
Sept. 20, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 31.7 μg/m3 (92) 92.0
 
Sept. 20, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 37.9 μg/m3 (106) 106.0
 
Sept. 20, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 35.3 μg/m3 (100) 100.0
 
Sept. 20, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 34.1 μg/m3 (97) 97.0
 
Sept. 20, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A N/A 32.7 μg/m3 (94) 94.0
 
Sept. 20, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 31.5 μg/m3 (91) 91.0
 
Sept. 20, 2020, midnight N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 32.1 μg/m3 (93) 93.0
 
Sept. 19, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 32.9 μg/m3 (94) 94.0
 
Sept. 19, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 34.7 μg/m3 (98) 98.0
 
Sept. 19, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 30.5 μg/m3 (89) 89.0
 
Sept. 19, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A N/A 29.7 μg/m3 (88) 88.0