ID: 2076

AQSQID: 000091701

Site Name: Steeper

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

Updated: June 1, 2020, 2:33 p.m.

Location: Alberta (Yellowhead Co), CC

Reporting: True, Located: True

Current AQI: 31.0

Alberta (Yellowhead Co) CC, CA: 53.1325, -117.09111

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
June 1, 2020, noon N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 2.3 μg/m3 (10) 31.0
 
June 1, 2020, 11 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 43.0 ppb (33) N/A N/A 2.3 μg/m3 (10) 33.0
 
June 1, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.4 μg/m3 (10) 10.0
 
June 1, 2020, 9 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 43.0 ppb (33) N/A N/A 2.5 μg/m3 (10) 33.0
 
June 1, 2020, 8 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 2.6 μg/m3 (11) 30.0
 
June 1, 2020, 7 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 2.8 μg/m3 (12) 28.0
 
June 1, 2020, 6 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 2.5 μg/m3 (10) 31.0
 
June 1, 2020, 5 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 2.7 μg/m3 (11) 28.0
 
June 1, 2020, 4 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 2.9 μg/m3 (12) 31.0
 
June 1, 2020, 3 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 3.2 μg/m3 (13) 30.0
 
June 1, 2020, 2 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 46.0 ppb (35) N/A N/A 3.3 μg/m3 (14) 35.0
 
June 1, 2020, midnight N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 2.5 μg/m3 (10) 31.0
 
May 31, 2020, 11 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 2.5 μg/m3 (10) 28.0
 
May 31, 2020, 9 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 1.7 μg/m3 (7) 27.0
 
May 31, 2020, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 1.6 μg/m3 (7) 27.0
 
May 31, 2020, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 2.5 μg/m3 (10) 25.0
 
May 31, 2020, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 3.0 μg/m3 (12) 25.0
 
May 31, 2020, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 4.5 μg/m3 (19) 25.0
 
May 31, 2020, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 4.7 μg/m3 (20) 20.0
 
May 31, 2020, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 5.0 μg/m3 (21) 21.0
 
May 31, 2020, 2 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 5.3 μg/m3 (22) 22.0
 
May 31, 2020, 1 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 5.8 μg/m3 (24) 24.0
 
May 31, 2020, noon N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 6.7 μg/m3 (28) 28.0
 
May 31, 2020, 11 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A 6.2 μg/m3 (26) 26.0
 
May 31, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.1 μg/m3 (25) 25.0
 
May 31, 2020, 9 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A 6.1 μg/m3 (25) 25.0
 
May 31, 2020, 8 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A 5.6 μg/m3 (23) 23.0
 
May 31, 2020, 6 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 7.2 μg/m3 (30) 30.0
 
May 31, 2020, 5 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 42.0 ppb (32) N/A N/A 7.3 μg/m3 (30) 32.0
 
May 31, 2020, 4 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 46.0 ppb (35) N/A N/A 7.6 μg/m3 (32) 35.0
 
May 31, 2020, 3 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 50.0 ppb (38) N/A N/A 9.9 μg/m3 (41) 41.0
 
May 31, 2020, 2 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 54.0 ppb (42) N/A N/A 9.7 μg/m3 (40) 42.0
 
May 31, 2020, 1 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 53.0 ppb (41) N/A N/A 9.1 μg/m3 (38) 41.0
 
May 31, 2020, midnight N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 51.0 ppb (39) N/A N/A 7.3 μg/m3 (30) 39.0
 
May 30, 2020, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 51.0 ppb (39) N/A N/A 7.0 μg/m3 (29) 39.0
 
May 30, 2020, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 47.0 ppb (36) N/A N/A 6.4 μg/m3 (27) 36.0
 
May 30, 2020, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (33) N/A N/A 6.7 μg/m3 (28) 33.0
 
May 30, 2020, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 44.0 ppb (34) N/A N/A 6.5 μg/m3 (27) 34.0
 
May 30, 2020, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 6.6 μg/m3 (28) 32.0
 
May 30, 2020, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 38.0 ppb (29) N/A N/A 5.6 μg/m3 (23) 29.0
 
May 30, 2020, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 5.6 μg/m3 (23) 27.0
 
May 30, 2020, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 4.1 μg/m3 (17) 27.0
 
May 30, 2020, 2 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 3.7 μg/m3 (15) 28.0
 
May 30, 2020, 1 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 3.5 μg/m3 (15) 31.0
 
May 30, 2020, noon N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 3.8 μg/m3 (16) 31.0
 
May 30, 2020, 11 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 3.4 μg/m3 (14) 31.0
 
May 30, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.5 μg/m3 (10) 10.0
 
May 30, 2020, 8 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 44.0 ppb (34) N/A N/A 3.3 μg/m3 (14) 34.0
 
May 30, 2020, 6 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 44.0 ppb (34) N/A N/A 4.2 μg/m3 (18) 34.0
 
May 30, 2020, 5 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 46.0 ppb (35) N/A N/A 4.2 μg/m3 (18) 35.0
 
May 30, 2020, 4 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 48.0 ppb (37) N/A N/A 3.9 μg/m3 (16) 37.0
 
May 30, 2020, 3 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 47.0 ppb (36) N/A N/A 3.9 μg/m3 (16) 36.0
 
May 30, 2020, 2 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 49.0 ppb (38) N/A N/A 3.9 μg/m3 (16) 38.0
 
May 30, 2020, 1 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 50.0 ppb (38) N/A N/A 3.6 μg/m3 (15) 38.0
 
May 29, 2020, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 49.0 ppb (38) N/A N/A 3.4 μg/m3 (14) 38.0
 
May 29, 2020, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 46.0 ppb (35) N/A N/A 3.4 μg/m3 (14) 35.0
 
May 29, 2020, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 44.0 ppb (34) N/A N/A 3.2 μg/m3 (13) 34.0
 
May 29, 2020, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 44.0 ppb (34) N/A N/A 3.1 μg/m3 (13) 34.0
 
May 29, 2020, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (33) N/A N/A 3.0 μg/m3 (12) 33.0
 
May 29, 2020, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 44.0 ppb (34) N/A N/A 3.1 μg/m3 (13) 34.0
 
May 29, 2020, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 42.0 ppb (32) N/A N/A 3.6 μg/m3 (15) 32.0
 
May 29, 2020, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 40.0 ppb (31) N/A N/A 3.6 μg/m3 (15) 31.0
 
May 29, 2020, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 3.2 μg/m3 (13) 27.0
 
May 29, 2020, 2 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 3.1 μg/m3 (13) 23.0
 
May 29, 2020, 1 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 3.1 μg/m3 (13) 21.0
 
May 29, 2020, noon N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 3.1 μg/m3 (13) 20.0
 
May 29, 2020, 11 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 3.0 μg/m3 (12) 22.0
 
May 29, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
May 29, 2020, 9 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 3.0 μg/m3 (12) 27.0
 
May 29, 2020, 8 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 3.0 μg/m3 (12) 26.0
 
May 29, 2020, 7 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 3.1 μg/m3 (13) 29.0
 
May 29, 2020, 6 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 2.7 μg/m3 (11) 28.0
 
May 29, 2020, 4 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 2.3 μg/m3 (10) 29.0
 
May 29, 2020, 3 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 2.4 μg/m3 (10) 29.0
 
May 29, 2020, 2 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 2.3 μg/m3 (10) 32.0
 
May 29, 2020, 1 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 43.0 ppb (33) N/A N/A 2.4 μg/m3 (10) 33.0
 
May 29, 2020, midnight N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 44.0 ppb (34) N/A N/A 2.3 μg/m3 (10) 34.0
 
May 28, 2020, 11 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 47.0 ppb (36) N/A N/A 2.3 μg/m3 (10) 36.0
 
May 28, 2020, 10 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 48.0 ppb (37) N/A N/A 2.2 μg/m3 (9) 37.0
 
May 28, 2020, 8 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 48.0 ppb (37) N/A N/A 2.1 μg/m3 (9) 37.0
 
May 28, 2020, 7 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 48.0 ppb (37) N/A N/A 1.9 μg/m3 (8) 37.0
 
May 28, 2020, 6 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 47.0 ppb (36) N/A N/A 1.9 μg/m3 (8) 36.0
 
May 28, 2020, 5 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 46.0 ppb (35) N/A N/A 1.6 μg/m3 (7) 35.0
 
May 28, 2020, 4 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 47.0 ppb (36) N/A N/A 1.6 μg/m3 (7) 36.0
 
May 28, 2020, 3 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 42.0 ppb (32) N/A N/A 1.5 μg/m3 (6) 32.0
 
May 28, 2020, 2 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 1.6 μg/m3 (7) 28.0
 
May 28, 2020, 1 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 1.6 μg/m3 (7) 25.0
 
May 28, 2020, noon N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 1.7 μg/m3 (7) 24.0
 
May 28, 2020, 11 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 1.7 μg/m3 (7) 24.0
 
May 28, 2020, 9 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 1.8 μg/m3 (8) 25.0
 
May 28, 2020, 8 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 1.7 μg/m3 (7) 26.0
 
May 28, 2020, 7 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 1.7 μg/m3 (7) 23.0
 
May 28, 2020, 6 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 1.5 μg/m3 (6) 25.0
 
May 28, 2020, 5 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 1.5 μg/m3 (6) 28.0
 
May 28, 2020, 4 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 44.0 ppb (34) N/A N/A 1.2 μg/m3 (5) 34.0
 
May 28, 2020, 3 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 1.0 μg/m3 (4) 32.0
 
May 28, 2020, 2 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 1.0 μg/m3 (4) 31.0
 
May 28, 2020, midnight N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 42.0 ppb (32) N/A N/A 0.9 μg/m3 (4) 32.0
 
May 27, 2020, 11 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 42.0 ppb (32) N/A N/A 0.9 μg/m3 (4) 32.0
 
May 27, 2020, 10 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 42.0 ppb (32) N/A N/A 0.9 μg/m3 (4) 32.0
 
May 27, 2020, 9 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 0.8 μg/m3 (3) 32.0
 
May 27, 2020, 8 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 0.8 μg/m3 (3) 32.0
 
May 27, 2020, 7 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 0.7 μg/m3 (3) 30.0
 
May 27, 2020, 6 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 0.7 μg/m3 (3) 30.0
 
May 27, 2020, 5 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 0.7 μg/m3 (3) 31.0
 
May 27, 2020, 4 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 0.7 μg/m3 (3) 31.0
 
May 27, 2020, 3 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 0.7 μg/m3 (3) 31.0
 
May 27, 2020, 1 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 0.7 μg/m3 (3) 30.0
 
May 27, 2020, 11 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 0.7 μg/m3 (3) 25.0
 
May 27, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.7 μg/m3 (3) 3.0
 
May 27, 2020, 9 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 0.7 μg/m3 (3) 26.0
 
May 27, 2020, 8 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 0.5 μg/m3 (2) 28.0
 
May 27, 2020, 7 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 0.7 μg/m3 (3) 26.0
 
May 27, 2020, 6 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 0.8 μg/m3 (3) 25.0
 
May 27, 2020, 5 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 0.8 μg/m3 (3) 27.0
 
May 27, 2020, 4 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 0.9 μg/m3 (4) 28.0
 
May 27, 2020, 3 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 1.1 μg/m3 (5) 28.0
 
May 27, 2020, 2 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 1.0 μg/m3 (4) 31.0
 
May 27, 2020, 1 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 1.0 μg/m3 (4) 31.0
 
May 26, 2020, 11 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 0.9 μg/m3 (4) 32.0
 
May 26, 2020, 10 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 43.0 ppb (33) N/A N/A 1.0 μg/m3 (4) 33.0
 
May 26, 2020, 9 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 42.0 ppb (32) N/A N/A 1.0 μg/m3 (4) 32.0
 
May 26, 2020, 8 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 0.8 μg/m3 (3) 32.0
 
May 26, 2020, 7 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 43.0 ppb (33) N/A N/A 0.8 μg/m3 (3) 33.0
 
May 26, 2020, 6 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 0.5 μg/m3 (2) 31.0
 
May 26, 2020, 5 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 0.2 μg/m3 (1) 30.0
 
May 26, 2020, 4 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 0.3 μg/m3 (1) 31.0
 
May 26, 2020, 3 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 0.6 μg/m3 (2) 25.0
 
May 26, 2020, 2 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 0.5 μg/m3 (2) 18.0
 
May 26, 2020, 1 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 0.4 μg/m3 (2) 18.0
 
May 26, 2020, noon N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 0.6 μg/m3 (2) 21.0
 
May 26, 2020, 11 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 0.6 μg/m3 (2) 24.0
 
May 26, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.8 μg/m3 (3) 3.0
 
May 26, 2020, 9 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 0.6 μg/m3 (2) 24.0
 
May 26, 2020, 8 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 0.6 μg/m3 (2) 22.0
 
May 26, 2020, 7 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 0.6 μg/m3 (2) 20.0
 
May 26, 2020, 5 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 0.7 μg/m3 (3) 22.0
 
May 26, 2020, 2 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 0.8 μg/m3 (3) 25.0
 
May 26, 2020, 1 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 0.5 μg/m3 (2) 25.0
 
May 26, 2020, midnight N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 0.5 μg/m3 (2) 27.0
 
May 25, 2020, 11 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 0.5 μg/m3 (2) 26.0
 
May 25, 2020, 10 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 0.5 μg/m3 (2) 25.0
 
May 25, 2020, 9 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 0.6 μg/m3 (2) 25.0
 
May 25, 2020, 8 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 0.6 μg/m3 (2) 25.0
 
May 25, 2020, 7 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 0.4 μg/m3 (2) 25.0
 
May 25, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.3 μg/m3 (5) 5.0
 
May 25, 2020, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 1.5 μg/m3 (6) 32.0
 
May 25, 2020, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 1.7 μg/m3 (7) 27.0
 
May 25, 2020, 3 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 1.6 μg/m3 (7) 22.0
 
May 25, 2020, 2 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 1.4 μg/m3 (6) 26.0
 
May 25, 2020, 1 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 1.5 μg/m3 (6) 27.0
 
May 25, 2020, noon N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 1.5 μg/m3 (6) 28.0
 
May 25, 2020, 11 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 1.5 μg/m3 (6) 29.0
 
May 25, 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
 
May 25, 2020, 9 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 1.4 μg/m3 (6) 29.0
 
May 25, 2020, 8 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 1.4 μg/m3 (6) 29.0
 
May 25, 2020, 7 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 1.4 μg/m3 (6) 31.0
 
May 25, 2020, 6 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 43.0 ppb (33) N/A N/A 1.3 μg/m3 (5) 33.0
 
May 25, 2020, 5 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 42.0 ppb (32) N/A N/A 1.3 μg/m3 (5) 32.0
 
May 25, 2020, 4 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 1.4 μg/m3 (6) 31.0
 
May 25, 2020, 3 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 42.0 ppb (32) N/A N/A 1.4 μg/m3 (6) 32.0
 
May 25, 2020, 2 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 43.0 ppb (33) N/A N/A 1.6 μg/m3 (7) 33.0
 
May 25, 2020, 1 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 44.0 ppb (34) N/A N/A 1.5 μg/m3 (6) 34.0
 
May 25, 2020, midnight N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 42.0 ppb (32) N/A N/A 1.3 μg/m3 (5) 32.0
 
May 24, 2020, 11 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 1.4 μg/m3 (6) 32.0
 
May 24, 2020, 10 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 1.1 μg/m3 (5) 31.0
 
May 24, 2020, 9 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 0.9 μg/m3 (4) 29.0
 
May 24, 2020, 8 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 1.0 μg/m3 (4) 30.0