ID: 2076

AQSQID: 000091701

Site Name: Steeper

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

Updated: Sept. 23, 2020, 8:39 a.m.

Location: Alberta (Yellowhead Co), CC

Reporting: True, Located: True

Current AQI: 21.0

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
Sept. 23, 2020, 5 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 1.5 μg/m3 (6) 21.0
 
Sept. 23, 2020, 4 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 1.6 μg/m3 (7) 27.0
 
Sept. 23, 2020, 3 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 1.7 μg/m3 (7) 29.0
 
Sept. 23, 2020, 2 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 1.6 μg/m3 (7) 31.0
 
Sept. 23, 2020, 1 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 1.3 μg/m3 (5) 29.0
 
Sept. 23, 2020, midnight 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
 
Sept. 22, 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 1.0 μg/m3 (4) 28.0
 
Sept. 22, 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 1.1 μg/m3 (5) 27.0
 
Sept. 22, 2020, 8 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 1.0 μg/m3 (4) 27.0
 
Sept. 22, 2020, 7 p.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 1.0 μg/m3 (4) 24.0
 
Sept. 22, 2020, 6 p.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 0.9 μg/m3 (4) 22.0
 
Sept. 22, 2020, 5 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 0.8 μg/m3 (3) 19.0
 
Sept. 22, 2020, 4 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 0.7 μg/m3 (3) 17.0
 
Sept. 22, 2020, 3 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A 0.5 μg/m3 (2) 15.0
 
Sept. 22, 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
 
Sept. 22, 2020, 1 p.m. N/A N/A N/A 0.0 ppb (0) N/A 1.0 ppb (1) 26.0 ppb (20) N/A N/A 0.4 μg/m3 (2) 20.0
 
Sept. 22, 2020, 11 a.m. N/A N/A N/A 0.0 ppb (0) N/A 1.0 ppb (1) 39.0 ppb (30) N/A N/A 0.4 μg/m3 (2) 30.0
 
Sept. 22, 2020, 9 a.m. N/A N/A N/A 0.0 ppb (0) N/A 3.0 ppb (4) 30.0 ppb (23) N/A N/A 0.5 μg/m3 (2) 23.0
 
Sept. 22, 2020, 8 a.m. N/A N/A N/A 0.0 ppb (0) N/A 4.0 ppb (6) 28.0 ppb (22) N/A N/A 0.5 μg/m3 (2) 22.0
 
Sept. 22, 2020, 7 a.m. N/A N/A N/A 0.0 ppb (0) N/A 3.0 ppb (4) 27.0 ppb (21) N/A N/A 0.5 μg/m3 (2) 21.0
 
Sept. 22, 2020, 6 a.m. N/A N/A N/A 0.0 ppb (0) N/A 2.0 ppb (3) 31.0 ppb (24) N/A N/A 0.4 μg/m3 (2) 24.0
 
Sept. 22, 2020, 5 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (1) 34.0 ppb (26) N/A N/A 0.4 μg/m3 (2) 26.0
 
Sept. 22, 2020, 3 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 0.4 μg/m3 (2) 24.0
 
Sept. 22, 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 0.4 μg/m3 (2) 25.0
 
Sept. 22, 2020, 1 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 0.4 μg/m3 (2) 28.0
 
Sept. 22, 2020, midnight N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 0.4 μg/m3 (2) 28.0
 
Sept. 21, 2020, 11 p.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 0.4 μg/m3 (2) 28.0
 
Sept. 21, 2020, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A 2.0 ppb (3) 33.0 ppb (25) N/A N/A 0.6 μg/m3 (2) 25.0
 
Sept. 21, 2020, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A 22.0 ppb (31) 34.0 ppb (26) N/A N/A 1.1 μg/m3 (5) 31.0
 
Sept. 21, 2020, 8 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 0.8 μg/m3 (3) 25.0
 
Sept. 21, 2020, 7 p.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 0.8 μg/m3 (3) 24.0
 
Sept. 21, 2020, 6 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 0.9 μg/m3 (4) 25.0
 
Sept. 21, 2020, 5 p.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 0.9 μg/m3 (4) 24.0
 
Sept. 21, 2020, 4 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 1.0 μg/m3 (4) 23.0
 
Sept. 21, 2020, 3 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 1.3 μg/m3 (5) 21.0
 
Sept. 21, 2020, 2 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 1.4 μg/m3 (6) 22.0
 
Sept. 21, 2020, 1 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 1.5 μg/m3 (6) 21.0
 
Sept. 21, 2020, noon N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 1.6 μg/m3 (7) 27.0
 
Sept. 21, 2020, 11 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 1.5 μg/m3 (6) 28.0
 
Sept. 21, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.7 μg/m3 (7) 7.0
 
Sept. 21, 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 1.8 μg/m3 (8) 29.0
 
Sept. 21, 2020, 8 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 1.6 μg/m3 (7) 27.0
 
Sept. 21, 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 1.4 μg/m3 (6) 26.0
 
Sept. 21, 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 1.2 μg/m3 (5) 25.0
 
Sept. 21, 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 1.0 μg/m3 (4) 22.0
 
Sept. 21, 2020, 4 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 1.0 μg/m3 (4) 21.0
 
Sept. 21, 2020, 3 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 1.0 μg/m3 (4) 22.0
 
Sept. 21, 2020, 2 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 1.1 μg/m3 (5) 22.0
 
Sept. 21, 2020, 1 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 1.0 μg/m3 (4) 23.0
 
Sept. 21, 2020, midnight N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 0.9 μg/m3 (4) 25.0
 
Sept. 20, 2020, 11 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 0.8 μg/m3 (3) 25.0
 
Sept. 20, 2020, 10 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 0.8 μg/m3 (3) 26.0
 
Sept. 20, 2020, 9 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 0.7 μg/m3 (3) 26.0
 
Sept. 20, 2020, 8 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 0.7 μg/m3 (3) 26.0
 
Sept. 20, 2020, 5 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 1.9 μg/m3 (8) 23.0
 
Sept. 20, 2020, 4 p.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 4.4 μg/m3 (18) 22.0
 
Sept. 20, 2020, 3 p.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 7.4 μg/m3 (31) 31.0
 
Sept. 20, 2020, 2 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 10.1 μg/m3 (42) 42.0
 
Sept. 20, 2020, 1 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 10.7 μg/m3 (45) 45.0
 
Sept. 20, 2020, noon N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 12.0 μg/m3 (50) 50.0
 
Sept. 20, 2020, 11 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 12.8 μg/m3 (52) 52.0
 
Sept. 20, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.7 μg/m3 (54) 54.0
 
Sept. 20, 2020, 9 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 12.3 μg/m3 (51) 51.0
 
Sept. 20, 2020, 8 a.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 12.1 μg/m3 (50) 50.0
 
Sept. 20, 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 13.3 μg/m3 (53) 53.0
 
Sept. 20, 2020, 6 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 17.2 μg/m3 (61) 61.0
 
Sept. 20, 2020, 5 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 22.6 μg/m3 (73) 73.0
 
Sept. 20, 2020, 4 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 25.2 μg/m3 (78) 78.0
 
Sept. 20, 2020, 3 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 32.3 μg/m3 (93) 93.0
 
Sept. 20, 2020, 2 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 35.6 μg/m3 (100) 100.0
 
Sept. 20, 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 32.8 μg/m3 (94) 94.0
 
Sept. 20, 2020, midnight N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 28.4 μg/m3 (85) 85.0
 
Sept. 19, 2020, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 29.4 μg/m3 (87) 87.0
 
Sept. 19, 2020, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 26.8 μg/m3 (81) 81.0
 
Sept. 19, 2020, 9 p.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 31.6 μg/m3 (92) 92.0
 
Sept. 19, 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 33.3 μg/m3 (95) 95.0
 
Sept. 19, 2020, 7 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 29.8 μg/m3 (88) 88.0
 
Sept. 19, 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 29.6 μg/m3 (87) 87.0
 
Sept. 19, 2020, 5 p.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 30.4 μg/m3 (89) 89.0
 
Sept. 19, 2020, 4 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 34.1 μg/m3 (97) 97.0
 
Sept. 19, 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 40.7 μg/m3 (113) 113.0
 
Sept. 19, 2020, 2 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 45.0 ppb (35) N/A N/A 52.0 μg/m3 (141) 141.0
 
Sept. 19, 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 60.5 μg/m3 (153) 153.0
 
Sept. 19, 2020, noon N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 45.0 ppb (35) N/A N/A 64.8 μg/m3 (155) 155.0
 
Sept. 19, 2020, 11 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 61.8 μg/m3 (153) 153.0
 
Sept. 19, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 59.2 μg/m3 (152) 152.0
 
Sept. 19, 2020, 9 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 56.2 μg/m3 (150) 150.0
 
Sept. 19, 2020, 8 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 53.0 μg/m3 (144) 144.0
 
Sept. 19, 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 53.4 μg/m3 (145) 145.0
 
Sept. 19, 2020, 6 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 53.6 μg/m3 (145) 145.0
 
Sept. 19, 2020, 5 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 54.5 μg/m3 (148) 148.0
 
Sept. 19, 2020, 4 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 57.0 μg/m3 (151) 151.0
 
Sept. 19, 2020, 3 a.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 58.2 μg/m3 (151) 151.0
 
Sept. 19, 2020, 2 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 43.5 μg/m3 (120) 120.0
 
Sept. 19, 2020, 1 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 54.1 μg/m3 (146) 146.0
 
Sept. 19, 2020, midnight N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 57.2 μg/m3 (151) 151.0
 
Sept. 18, 2020, 11 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 60.8 μg/m3 (153) 153.0
 
Sept. 18, 2020, 10 p.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 65.2 μg/m3 (155) 155.0
 
Sept. 18, 2020, 9 p.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 66.0 μg/m3 (156) 156.0
 
Sept. 18, 2020, 8 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 66.6 μg/m3 (156) 156.0
 
Sept. 18, 2020, 7 p.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 66.1 μg/m3 (156) 156.0
 
Sept. 18, 2020, 6 p.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 69.6 μg/m3 (157) 157.0
 
Sept. 18, 2020, 5 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 69.0 μg/m3 (157) 157.0
 
Sept. 18, 2020, 4 p.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 66.3 μg/m3 (156) 156.0
 
Sept. 18, 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 66.0 μg/m3 (156) 156.0
 
Sept. 18, 2020, 1 p.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 65.4 μg/m3 (155) 155.0
 
Sept. 18, 2020, noon N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 62.8 μg/m3 (154) 154.0
 
Sept. 18, 2020, 11 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 56.1 μg/m3 (150) 150.0
 
Sept. 18, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 48.5 μg/m3 (132) 132.0
 
Sept. 18, 2020, 9 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A 41.9 μg/m3 (116) 116.0
 
Sept. 18, 2020, 8 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 18.0 ppb (14) N/A N/A 32.9 μg/m3 (94) 94.0
 
Sept. 18, 2020, 7 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 17.0 ppb (13) N/A N/A 24.2 μg/m3 (76) 76.0
 
Sept. 18, 2020, 6 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 17.0 ppb (13) N/A N/A 18.5 μg/m3 (64) 64.0
 
Sept. 18, 2020, 5 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 17.3 μg/m3 (61) 61.0
 
Sept. 18, 2020, 4 a.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 17.4 μg/m3 (61) 61.0
 
Sept. 18, 2020, 3 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 17.8 μg/m3 (62) 62.0
 
Sept. 18, 2020, 2 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 17.2 μg/m3 (61) 61.0
 
Sept. 18, 2020, 1 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 16.8 μg/m3 (60) 60.0
 
Sept. 18, 2020, midnight N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 16.9 μg/m3 (60) 60.0
 
Sept. 17, 2020, 11 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 17.4 μg/m3 (61) 61.0
 
Sept. 17, 2020, 10 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 17.5 μg/m3 (62) 62.0
 
Sept. 17, 2020, 9 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 16.6 μg/m3 (60) 60.0
 
Sept. 17, 2020, 8 p.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 15.5 μg/m3 (57) 57.0
 
Sept. 17, 2020, 7 p.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 15.1 μg/m3 (57) 57.0
 
Sept. 17, 2020, 6 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 18.0 ppb (14) N/A N/A 13.6 μg/m3 (53) 53.0
 
Sept. 17, 2020, 5 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 18.0 ppb (14) N/A N/A 13.3 μg/m3 (53) 53.0
 
Sept. 17, 2020, 4 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A 12.5 μg/m3 (51) 51.0
 
Sept. 17, 2020, 3 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 14.0 ppb (11) N/A N/A 11.6 μg/m3 (48) 48.0
 
Sept. 17, 2020, 2 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 12.0 ppb (9) N/A N/A 11.5 μg/m3 (48) 48.0
 
Sept. 17, 2020, 1 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A 11.3 μg/m3 (47) 47.0
 
Sept. 17, 2020, noon N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A 11.2 μg/m3 (47) 47.0
 
Sept. 17, 2020, 11 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 11.0 ppb (8) N/A N/A 10.6 μg/m3 (44) 44.0
 
Sept. 17, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.4 μg/m3 (43) 43.0
 
Sept. 17, 2020, 9 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A 10.1 μg/m3 (42) 42.0
 
Sept. 17, 2020, 8 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A 10.2 μg/m3 (42) 42.0
 
Sept. 17, 2020, 7 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A 10.8 μg/m3 (45) 45.0
 
Sept. 17, 2020, 6 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A 10.7 μg/m3 (45) 45.0
 
Sept. 17, 2020, 5 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 11.0 ppb (8) N/A N/A 10.3 μg/m3 (43) 43.0
 
Sept. 17, 2020, 4 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A 10.7 μg/m3 (45) 45.0
 
Sept. 17, 2020, 3 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 10.9 μg/m3 (45) 45.0
 
Sept. 17, 2020, 2 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 10.7 μg/m3 (45) 45.0
 
Sept. 17, 2020, 1 a.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 10.1 μg/m3 (42) 42.0
 
Sept. 17, 2020, midnight N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A 10.2 μg/m3 (42) 42.0
 
Sept. 16, 2020, 11 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A 10.2 μg/m3 (42) 42.0
 
Sept. 16, 2020, 10 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 9.5 μg/m3 (40) 40.0
 
Sept. 16, 2020, 9 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A 9.7 μg/m3 (40) 40.0
 
Sept. 16, 2020, 8 p.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 10.8 μg/m3 (45) 45.0
 
Sept. 16, 2020, 7 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 11.5 μg/m3 (48) 48.0
 
Sept. 16, 2020, 6 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 11.6 μg/m3 (48) 48.0
 
Sept. 16, 2020, 5 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 12.1 μg/m3 (50) 50.0
 
Sept. 16, 2020, 4 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 13.0 μg/m3 (52) 52.0
 
Sept. 16, 2020, 3 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 12.6 μg/m3 (51) 51.0
 
Sept. 16, 2020, 2 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 13.0 ppb (10) N/A N/A 9.8 μg/m3 (41) 41.0
 
Sept. 16, 2020, 1 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 7.0 ppb (5) N/A N/A 8.8 μg/m3 (37) 37.0
 
Sept. 16, 2020, noon N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 4.0 ppb (3) N/A N/A 3.7 μg/m3 (15) 15.0
 
Sept. 16, 2020, 11 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 3.0 ppb (2) N/A N/A 0.4 μg/m3 (2) 2.0
 
Sept. 16, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.1 μg/m3 (0) N/A
Sept. 16, 2020, 9 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 7.0 ppb (5) N/A N/A 0.1 μg/m3 (0) 5.0
 
Sept. 16, 2020, 8 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 7.0 ppb (5) N/A N/A 0.8 μg/m3 (3) 5.0
 
Sept. 16, 2020, 7 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 7.0 ppb (5) N/A N/A 2.0 μg/m3 (8) 8.0
 
Sept. 16, 2020, 6 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A 2.3 μg/m3 (10) 10.0
 
Sept. 16, 2020, 5 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 11.0 ppb (8) N/A N/A 3.2 μg/m3 (13) 13.0
 
Sept. 16, 2020, 4 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 12.0 ppb (9) N/A N/A 5.2 μg/m3 (22) 22.0
 
Sept. 16, 2020, 3 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 11.0 ppb (8) N/A N/A 4.4 μg/m3 (18) 18.0
 
Sept. 16, 2020, 2 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 13.0 ppb (10) N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 16, 2020, 1 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 17.0 ppb (13) N/A N/A 7.2 μg/m3 (30) 30.0
 
Sept. 16, 2020, midnight N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 11.0 ppb (8) N/A N/A 5.9 μg/m3 (25) 25.0
 
Sept. 15, 2020, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 8.0 ppb (6) N/A N/A 3.7 μg/m3 (15) 15.0