ID: 1302

AQSQID: 000091301

Site Name: Tomahawk

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

Updated: June 3, 2020, 8:32 p.m.

Location: Alberta (Yellowhead Co), CC

Reporting: True, Located: True

Current AQI: 28.0

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
June 3, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 1.4 μg/m3 (6) 28.0
 
June 3, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 1.4 μg/m3 (6) 28.0
 
June 3, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 1.2 μg/m3 (5) 28.0
 
June 3, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 0.5 μg/m3 (2) 27.0
 
June 3, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A -0.1 μg/m3 (0) 25.0
 
June 3, 2020, 1 p.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 (0) 22.0
 
June 3, 2020, noon N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A -1.3 μg/m3 (0) 18.0
 
June 3, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A -1.6 μg/m3 (0) 17.0
 
June 3, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A -2.1 μg/m3 (0) N/A
June 3, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A -1.8 μg/m3 (0) 18.0
 
June 3, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A -2.1 μg/m3 (0) 20.0
 
June 3, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A -2.6 μg/m3 (0) 22.0
 
June 3, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A -1.6 μg/m3 (0) 22.0
 
June 3, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A -1.2 μg/m3 (0) 24.0
 
June 3, 2020, 4 a.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
 
June 3, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 0.6 μg/m3 (2) 27.0
 
June 3, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 3.4 μg/m3 (14) 28.0
 
June 3, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 3.6 μg/m3 (15) 25.0
 
June 3, 2020, midnight N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 2.8 μg/m3 (12) 30.0
 
June 2, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 2.9 μg/m3 (12) 32.0
 
June 2, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 2.9 μg/m3 (12) 32.0
 
June 2, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 2.5 μg/m3 (10) 32.0
 
June 2, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 2.9 μg/m3 (12) 35.0
 
June 2, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 2.6 μg/m3 (11) 35.0
 
June 2, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 1.9 μg/m3 (8) 33.0
 
June 2, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 0.7 μg/m3 (3) 24.0
 
June 2, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 1.4 μg/m3 (6) 18.0
 
June 2, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 2.1 μg/m3 (9) 14.0
 
June 2, 2020, noon N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 2.3 μg/m3 (10) 14.0
 
June 2, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 1.9 μg/m3 (8) 15.0
 
June 2, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.5 μg/m3 (6) 6.0
 
June 2, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 1.8 μg/m3 (8) 15.0
 
June 2, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 1.4 μg/m3 (6) 20.0
 
June 2, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 0.9 μg/m3 (4) 21.0
 
June 2, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 3.4 μg/m3 (14) 21.0
 
June 2, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 4.9 μg/m3 (20) 23.0
 
June 2, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 1.1 μg/m3 (5) 25.0
 
June 2, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 2.0 μg/m3 (8) 26.0
 
June 2, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 3.1 μg/m3 (13) 27.0
 
June 1, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 3.8 μg/m3 (16) 29.0
 
June 1, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 3.9 μg/m3 (16) 32.0
 
June 1, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 3.8 μg/m3 (16) 32.0
 
June 1, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 3.7 μg/m3 (15) 31.0
 
June 1, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 5.5 μg/m3 (23) 30.0
 
June 1, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 2.2 μg/m3 (9) 29.0
 
June 1, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 2.1 μg/m3 (9) 28.0
 
June 1, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 2.0 μg/m3 (8) 28.0
 
June 1, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 1.9 μg/m3 (8) 27.0
 
June 1, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 1.6 μg/m3 (7) 25.0
 
June 1, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 2.1 μg/m3 (9) 24.0
 
June 1, 2020, noon N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 3.0 μg/m3 (12) 22.0
 
June 1, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 4.8 μg/m3 (20) 25.0
 
June 1, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.9 μg/m3 (25) 25.0
 
June 1, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 6.5 μg/m3 (27) 27.0
 
June 1, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 7.3 μg/m3 (30) 30.0
 
June 1, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 8.7 μg/m3 (36) 36.0
 
June 1, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 8.9 μg/m3 (37) 37.0
 
June 1, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 8.2 μg/m3 (34) 34.0
 
June 1, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 8.6 μg/m3 (36) 36.0
 
June 1, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 8.8 μg/m3 (37) 37.0
 
June 1, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 8.8 μg/m3 (37) 37.0
 
June 1, 2020, midnight N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 9.0 μg/m3 (38) 38.0
 
May 31, 2020, 11 p.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
 
May 31, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 13.0 μg/m3 (52) 52.0
 
May 31, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 15.7 μg/m3 (58) 58.0
 
May 31, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 10.8 μg/m3 (45) 45.0
 
May 31, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 10.0 μg/m3 (42) 42.0
 
May 31, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 8.3 μg/m3 (35) 35.0
 
May 31, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 6.8 μg/m3 (28) 28.0
 
May 31, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 5.4 μg/m3 (23) 23.0
 
May 31, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 4.8 μg/m3 (20) 20.0
 
May 31, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 3.7 μg/m3 (15) 18.0
 
May 31, 2020, noon 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
 
May 31, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 4.2 μg/m3 (18) 22.0
 
May 31, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.3 μg/m3 (18) 18.0
 
May 31, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 4.8 μg/m3 (20) 26.0
 
May 31, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 6.2 μg/m3 (26) 26.0
 
May 31, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 6.4 μg/m3 (27) 31.0
 
May 31, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 7.1 μg/m3 (30) 33.0
 
May 31, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 4.7 μg/m3 (20) 34.0
 
May 31, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 4.6 μg/m3 (19) 37.0
 
May 31, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 4.4 μg/m3 (18) 37.0
 
May 31, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 4.5 μg/m3 (19) 32.0
 
May 31, 2020, midnight N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 4.9 μg/m3 (20) 34.0
 
May 30, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 5.0 μg/m3 (21) 35.0
 
May 30, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 6.1 μg/m3 (25) 38.0
 
May 30, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 3.6 μg/m3 (15) 32.0
 
May 30, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 4.5 μg/m3 (19) 28.0
 
May 30, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 3.3 μg/m3 (14) 25.0
 
May 30, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 3.7 μg/m3 (15) 23.0
 
May 30, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 4.2 μg/m3 (18) 22.0
 
May 30, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 4.4 μg/m3 (18) 20.0
 
May 30, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 4.3 μg/m3 (18) 18.0
 
May 30, 2020, noon N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 4.5 μg/m3 (19) 19.0
 
May 30, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 4.1 μg/m3 (17) 20.0
 
May 30, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.6 μg/m3 (15) 15.0
 
May 30, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 3.0 μg/m3 (12) 24.0
 
May 30, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 3.1 μg/m3 (13) 28.0
 
May 30, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 2.9 μg/m3 (12) 29.0
 
May 30, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 2.6 μg/m3 (11) 30.0
 
May 30, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 2.6 μg/m3 (11) 32.0
 
May 30, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 2.5 μg/m3 (10) 34.0
 
May 30, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 2.9 μg/m3 (12) 35.0
 
May 29, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 2.3 μg/m3 (10) 36.0
 
May 29, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 2.3 μg/m3 (10) 35.0
 
May 29, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 2.5 μg/m3 (10) 35.0
 
May 29, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 2.3 μg/m3 (10) 35.0
 
May 29, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 2.4 μg/m3 (10) 35.0
 
May 29, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 2.4 μg/m3 (10) 34.0
 
May 29, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 2.3 μg/m3 (10) 32.0
 
May 29, 2020, 4 p.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
 
May 29, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 2.4 μg/m3 (10) 25.0
 
May 29, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 2.2 μg/m3 (9) 20.0
 
May 29, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 2.3 μg/m3 (10) 18.0
 
May 29, 2020, noon N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 2.5 μg/m3 (10) 20.0
 
May 29, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 2.6 μg/m3 (11) 21.0
 
May 29, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.7 μg/m3 (11) 11.0
 
May 29, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 2.8 μg/m3 (12) 23.0
 
May 29, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 3.1 μg/m3 (13) 26.0
 
May 29, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 3.4 μg/m3 (14) 28.0
 
May 29, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 3.1 μg/m3 (13) 28.0
 
May 29, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 2.8 μg/m3 (12) 28.0
 
May 29, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 2.7 μg/m3 (11) 29.0
 
May 29, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 2.4 μg/m3 (10) 30.0
 
May 29, 2020, midnight N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 2.5 μg/m3 (10) 34.0
 
May 28, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 2.3 μg/m3 (10) 34.0
 
May 28, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 2.2 μg/m3 (9) 32.0
 
May 28, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 2.0 μg/m3 (8) 31.0
 
May 28, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 1.9 μg/m3 (8) 30.0
 
May 28, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 2.0 μg/m3 (8) 28.0
 
May 28, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 1.4 μg/m3 (6) 27.0
 
May 28, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 1.4 μg/m3 (6) 20.0
 
May 28, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 2.4 μg/m3 (10) 15.0
 
May 28, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A N/A 3.2 μg/m3 (13) 13.0
 
May 28, 2020, noon N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A N/A 3.6 μg/m3 (15) 15.0
 
May 28, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A N/A 3.4 μg/m3 (14) 14.0
 
May 28, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 3.2 μg/m3 (13) 13.0
 
May 28, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 2.7 μg/m3 (11) 16.0
 
May 28, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 1.9 μg/m3 (8) 18.0
 
May 28, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 1.3 μg/m3 (5) 20.0
 
May 28, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 0.6 μg/m3 (2) 22.0
 
May 28, 2020, 4 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
 
May 28, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 0.7 μg/m3 (3) 23.0
 
May 28, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 0.7 μg/m3 (3) 25.0
 
May 28, 2020, midnight N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 1.2 μg/m3 (5) 26.0
 
May 27, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 1.5 μg/m3 (6) 28.0
 
May 27, 2020, 10 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
 
May 27, 2020, 9 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
 
May 27, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 1.3 μg/m3 (5) 27.0
 
May 27, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 1.2 μg/m3 (5) 26.0
 
May 27, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 1.2 μg/m3 (5) 26.0
 
May 27, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 1.1 μg/m3 (5) 25.0
 
May 27, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 0.9 μg/m3 (4) 25.0
 
May 27, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 1.0 μg/m3 (4) 25.0
 
May 27, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 1.2 μg/m3 (5) 24.0
 
May 27, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 1.0 μg/m3 (4) 24.0
 
May 27, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.9 μg/m3 (4) 4.0
 
May 27, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 0.9 μg/m3 (4) 25.0
 
May 27, 2020, 8 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
 
May 27, 2020, 7 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
 
May 27, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 1.2 μg/m3 (5) 22.0
 
May 27, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 1.4 μg/m3 (6) 22.0
 
May 27, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 1.3 μg/m3 (5) 26.0
 
May 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 1.1 μg/m3 (5) 29.0
 
May 27, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 1.2 μg/m3 (5) 32.0
 
May 26, 2020, 11 p.m. 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
 
May 26, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 0.9 μg/m3 (4) 28.0
 
May 26, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 0.5 μg/m3 (2) 27.0