ID: 2736

AQSQID: CC0050135

Site Name: Caserne 17

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

Updated: Jan. 26, 2021, 2:32 p.m.

Location: Montréal (Dist-Marie-Clarac), N/A

Reporting: False, Located: True

Current AQI: None

Montréal (Dist-Marie-Clarac) N/A, CA: 45.593325, -73.637328

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 23, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) 0.14 ppb (2) N/A 0.1 μg/m3 (1) 26.0
 
Jan. 23, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) 0.13 ppb (2) N/A 0.3 μg/m3 (2) 26.0
 
Jan. 23, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) 0.13 ppb (2) N/A 0.4 μg/m3 (2) 26.0
 
Jan. 23, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) 0.14 ppb (2) N/A 1.3 μg/m3 (6) 25.0
 
Jan. 23, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) 0.14 ppb (2) N/A 1.8 μg/m3 (8) 25.0
 
Jan. 23, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) 0.15 ppb (2) N/A 2.4 μg/m3 (10) 25.0
 
Jan. 23, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) 0.17 ppb (3) N/A 2.9 μg/m3 (13) 25.0
 
Jan. 23, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) 0.17 ppb (3) N/A 2.1 μg/m3 (9) 25.0
 
Jan. 23, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) 0.18 ppb (3) N/A 2.8 μg/m3 (12) 26.0
 
Jan. 23, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) 0.19 ppb (3) N/A 3.3 μg/m3 (14) 25.0
 
Jan. 23, 2021, midnight N/A N/A N/A N/A N/A N/A 24.0 ppb (23) 0.21 ppb (3) N/A 3.8 μg/m3 (16) 23.0
 
Jan. 22, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) 0.21 ppb (3) N/A 4.2 μg/m3 (18) 24.0
 
Jan. 22, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) 0.22 ppb (3) N/A 2.7 μg/m3 (12) 24.0
 
Jan. 22, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) 0.24 ppb (3) N/A 2.4 μg/m3 (10) 23.0
 
Jan. 22, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) 0.23 ppb (3) N/A 2.1 μg/m3 (9) 24.0
 
Jan. 22, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) 0.19 ppb (3) N/A 1.7 μg/m3 (8) 25.0
 
Jan. 22, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) 0.19 ppb (3) N/A 2.1 μg/m3 (9) 24.0
 
Jan. 22, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) 0.2 ppb (3) N/A 4.8 μg/m3 (20) 22.0
 
Jan. 22, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) 0.23 ppb (3) N/A 6.4 μg/m3 (27) 27.0
 
Jan. 22, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) 0.32 ppb (4) N/A 12.9 μg/m3 (53) 53.0
 
Jan. 22, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) 0.42 ppb (5) N/A 18.2 μg/m3 (64) 64.0
 
Jan. 22, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) 0.39 ppb (5) N/A 16.7 μg/m3 (61) 61.0
 
Jan. 22, 2021, noon N/A N/A N/A N/A N/A N/A 4.0 ppb (4) 0.37 ppb (5) N/A 16.0 μg/m3 (60) 60.0
 
Jan. 22, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) 0.3 ppb (4) N/A 15.4 μg/m3 (58) 58.0
 
Jan. 22, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) 0.25 ppb (3) N/A 15.3 μg/m3 (58) 58.0
 
Jan. 22, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) 0.25 ppb (3) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 22, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) 0.25 ppb (3) N/A 16.3 μg/m3 (60) 60.0
 
Jan. 22, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) 0.26 ppb (4) N/A 14.8 μg/m3 (57) 57.0
 
Jan. 22, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) 0.28 ppb (4) N/A 14.4 μg/m3 (56) 56.0
 
Jan. 22, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) 0.28 ppb (4) N/A 12.7 μg/m3 (53) 53.0
 
Jan. 22, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) 0.26 ppb (4) N/A 10.6 μg/m3 (45) 45.0
 
Jan. 22, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) 0.27 ppb (4) N/A 12.8 μg/m3 (53) 53.0
 
Jan. 22, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) 0.33 ppb (4) N/A 19.4 μg/m3 (67) 67.0
 
Jan. 22, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) 0.38 ppb (5) N/A 18.7 μg/m3 (65) 65.0
 
Jan. 22, 2021, midnight N/A N/A N/A N/A N/A N/A 9.0 ppb (9) 0.27 ppb (4) N/A 13.6 μg/m3 (55) 55.0
 
Jan. 21, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) 0.26 ppb (4) N/A 10.8 μg/m3 (46) 46.0
 
Jan. 21, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) 0.28 ppb (4) N/A 9.5 μg/m3 (40) 40.0
 
Jan. 21, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) 0.29 ppb (4) N/A 6.9 μg/m3 (29) 29.0
 
Jan. 21, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) 0.33 ppb (4) N/A 7.8 μg/m3 (33) 33.0
 
Jan. 21, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) 0.31 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
Jan. 21, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) 0.26 ppb (4) N/A 8.5 μg/m3 (36) 36.0
 
Jan. 21, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) 0.26 ppb (4) N/A 5.3 μg/m3 (23) 23.0
 
Jan. 21, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) 0.32 ppb (4) N/A 9.5 μg/m3 (40) 40.0
 
Jan. 21, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) 0.29 ppb (4) N/A 8.7 μg/m3 (37) 37.0
 
Jan. 21, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) 0.34 ppb (4) N/A 5.4 μg/m3 (23) 23.0
 
Jan. 21, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) 0.37 ppb (5) N/A 7.3 μg/m3 (31) 31.0
 
Jan. 21, 2021, noon N/A N/A N/A N/A N/A N/A 8.0 ppb (8) 0.45 ppb (6) N/A 8.6 μg/m3 (36) 36.0
 
Jan. 21, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) 0.27 ppb (4) N/A 4.4 μg/m3 (19) 19.0
 
Jan. 21, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) 0.18 ppb (3) N/A 2.8 μg/m3 (12) 18.0
 
Jan. 21, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) 0.18 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 21, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) 0.23 ppb (3) N/A 5.8 μg/m3 (25) 25.0
 
Jan. 21, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) 0.27 ppb (4) N/A 6.2 μg/m3 (26) 26.0
 
Jan. 21, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) 0.22 ppb (3) N/A 5.3 μg/m3 (23) 23.0
 
Jan. 21, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) 0.22 ppb (3) N/A 8.7 μg/m3 (37) 37.0
 
Jan. 21, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) 0.2 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 21, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) 0.2 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 21, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) 0.19 ppb (3) N/A 5.4 μg/m3 (23) 23.0
 
Jan. 21, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) 0.19 ppb (3) N/A 4.9 μg/m3 (21) 22.0
 
Jan. 21, 2021, midnight N/A N/A N/A N/A N/A N/A 27.0 ppb (25) 0.18 ppb (3) N/A 2.2 μg/m3 (10) 25.0
 
Jan. 20, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) 0.17 ppb (3) N/A 2.2 μg/m3 (10) 25.0
 
Jan. 20, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) 0.21 ppb (3) N/A 2.2 μg/m3 (10) 24.0
 
Jan. 20, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) 0.2 ppb (3) N/A 1.6 μg/m3 (7) 22.0
 
Jan. 20, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) 0.2 ppb (3) N/A 1.0 μg/m3 (5) 24.0
 
Jan. 20, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) 0.17 ppb (3) N/A 0.8 μg/m3 (4) 25.0
 
Jan. 20, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) 0.17 ppb (3) N/A 1.8 μg/m3 (8) 25.0
 
Jan. 20, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) 0.25 ppb (3) N/A 5.3 μg/m3 (23) 23.0
 
Jan. 20, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) 0.26 ppb (4) N/A 10.1 μg/m3 (43) 43.0
 
Jan. 20, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) 0.28 ppb (4) N/A 12.8 μg/m3 (53) 53.0
 
Jan. 20, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) 0.35 ppb (4) N/A 22.6 μg/m3 (74) 74.0
 
Jan. 20, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) 0.43 ppb (5) N/A 32.6 μg/m3 (95) 95.0
 
Jan. 20, 2021, noon N/A N/A N/A N/A N/A N/A 3.0 ppb (3) 0.43 ppb (5) N/A 28.8 μg/m3 (87) 87.0
 
Jan. 20, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) 0.34 ppb (4) N/A 25.9 μg/m3 (81) 81.0
 
Jan. 20, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) 0.3 ppb (4) N/A 25.3 μg/m3 (79) 79.0
 
Jan. 20, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) 0.32 ppb (4) N/A 33.6 μg/m3 (97) 97.0
 
Jan. 20, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) 0.33 ppb (4) N/A 32.7 μg/m3 (95) 95.0
 
Jan. 20, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) 0.32 ppb (4) N/A 30.6 μg/m3 (90) 90.0
 
Jan. 20, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) 0.31 ppb (4) N/A 29.1 μg/m3 (87) 87.0
 
Jan. 20, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) 0.28 ppb (4) N/A 25.2 μg/m3 (79) 79.0
 
Jan. 20, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) 0.28 ppb (4) N/A 21.0 μg/m3 (70) 70.0
 
Jan. 20, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) 0.29 ppb (4) N/A 22.1 μg/m3 (73) 73.0
 
Jan. 20, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) 0.26 ppb (4) N/A 17.5 μg/m3 (63) 63.0
 
Jan. 20, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) 0.3 ppb (4) N/A 29.5 μg/m3 (88) 88.0
 
Jan. 20, 2021, midnight N/A N/A N/A N/A N/A N/A 6.0 ppb (6) 0.35 ppb (4) N/A 20.4 μg/m3 (69) 69.0
 
Jan. 19, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) 0.34 ppb (4) N/A 15.6 μg/m3 (59) 59.0
 
Jan. 19, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) 0.3 ppb (4) N/A 10.9 μg/m3 (46) 46.0
 
Jan. 19, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) 0.32 ppb (4) N/A 10.9 μg/m3 (46) 46.0
 
Jan. 19, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A 0.35 ppb (4) N/A 11.8 μg/m3 (50) 50.0
 
Jan. 19, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) 0.36 ppb (5) N/A 12.4 μg/m3 (52) 52.0
 
Jan. 19, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) 0.31 ppb (4) N/A 6.5 μg/m3 (28) 28.0
 
Jan. 19, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) 0.31 ppb (4) N/A 5.7 μg/m3 (24) 24.0
 
Jan. 19, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) 0.51 ppb (6) N/A 12.2 μg/m3 (52) 52.0
 
Jan. 19, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) 0.49 ppb (6) N/A 13.4 μg/m3 (54) 54.0
 
Jan. 19, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) 0.46 ppb (6) N/A 13.5 μg/m3 (54) 54.0
 
Jan. 19, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) 0.43 ppb (5) N/A 8.6 μg/m3 (36) 36.0
 
Jan. 19, 2021, noon N/A N/A N/A N/A N/A N/A 3.0 ppb (3) 0.5 ppb (6) N/A 10.2 μg/m3 (43) 43.0
 
Jan. 19, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) 0.34 ppb (4) N/A 8.1 μg/m3 (34) 34.0
 
Jan. 19, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) 0.27 ppb (4) N/A 7.0 μg/m3 (30) 30.0
 
Jan. 19, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) 0.22 ppb (3) N/A 8.5 μg/m3 (36) 36.0
 
Jan. 19, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) 0.22 ppb (3) N/A 10.4 μg/m3 (44) 44.0
 
Jan. 19, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) 0.21 ppb (3) N/A 9.8 μg/m3 (41) 41.0
 
Jan. 19, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) 0.22 ppb (3) N/A 9.2 μg/m3 (39) 39.0
 
Jan. 19, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) 0.21 ppb (3) N/A 6.1 μg/m3 (26) 26.0
 
Jan. 19, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) 0.21 ppb (3) N/A 6.7 μg/m3 (28) 28.0
 
Jan. 19, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) 0.21 ppb (3) N/A 9.7 μg/m3 (41) 41.0
 
Jan. 19, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) 0.2 ppb (3) N/A 7.1 μg/m3 (30) 30.0
 
Jan. 19, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) 0.2 ppb (3) N/A 6.8 μg/m3 (29) 29.0
 
Jan. 19, 2021, midnight N/A N/A N/A N/A N/A N/A 19.0 ppb (18) 0.23 ppb (3) N/A 8.8 μg/m3 (37) 37.0
 
Jan. 18, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) 0.21 ppb (3) N/A 5.7 μg/m3 (24) 24.0
 
Jan. 18, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) 0.21 ppb (3) N/A 3.1 μg/m3 (13) 24.0
 
Jan. 18, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) 0.2 ppb (3) N/A 2.2 μg/m3 (10) 25.0
 
Jan. 18, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) 0.19 ppb (3) N/A 1.7 μg/m3 (8) 25.0
 
Jan. 18, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) 0.2 ppb (3) N/A 2.2 μg/m3 (10) 24.0
 
Jan. 18, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) 0.18 ppb (3) N/A 2.2 μg/m3 (10) 25.0
 
Jan. 18, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) 0.17 ppb (3) N/A 1.5 μg/m3 (7) 25.0
 
Jan. 18, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) 0.19 ppb (3) N/A 1.6 μg/m3 (7) 25.0
 
Jan. 18, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) 0.2 ppb (3) N/A 1.6 μg/m3 (7) 25.0
 
Jan. 18, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) 0.2 ppb (3) N/A 1.6 μg/m3 (7) 23.0
 
Jan. 18, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) 0.2 ppb (3) N/A 1.6 μg/m3 (7) 22.0
 
Jan. 18, 2021, noon N/A N/A N/A N/A N/A N/A 22.0 ppb (21) 0.22 ppb (3) N/A 2.0 μg/m3 (9) 21.0
 
Jan. 18, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) 0.18 ppb (3) N/A 2.0 μg/m3 (9) 21.0
 
Jan. 18, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) 0.19 ppb (3) N/A 1.6 μg/m3 (7) 22.0
 
Jan. 18, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) 0.15 ppb (2) N/A 1.7 μg/m3 (8) 22.0
 
Jan. 18, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) 0.15 ppb (2) N/A 1.8 μg/m3 (8) 22.0
 
Jan. 18, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) 0.15 ppb (2) N/A 1.5 μg/m3 (7) 23.0
 
Jan. 18, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) 0.15 ppb (2) N/A 1.9 μg/m3 (8) 23.0
 
Jan. 18, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) 0.15 ppb (2) N/A 2.1 μg/m3 (9) 23.0
 
Jan. 18, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) 0.16 ppb (3) N/A 2.1 μg/m3 (9) 22.0
 
Jan. 18, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) 0.15 ppb (2) N/A 1.6 μg/m3 (7) 23.0
 
Jan. 18, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) 0.16 ppb (3) N/A 1.5 μg/m3 (7) 23.0
 
Jan. 18, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) 0.16 ppb (3) N/A 1.5 μg/m3 (7) 22.0
 
Jan. 18, 2021, midnight N/A N/A N/A N/A N/A N/A 22.0 ppb (21) 0.17 ppb (3) N/A 2.2 μg/m3 (10) 21.0
 
Jan. 17, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) 0.17 ppb (3) N/A 1.9 μg/m3 (8) 22.0
 
Jan. 17, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) 0.18 ppb (3) N/A 1.4 μg/m3 (6) 21.0
 
Jan. 17, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) 0.18 ppb (3) N/A 1.1 μg/m3 (5) 19.0
 
Jan. 17, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) 0.2 ppb (3) N/A 1.2 μg/m3 (5) 18.0
 
Jan. 17, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) 0.22 ppb (3) N/A 0.9 μg/m3 (4) 19.0
 
Jan. 17, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) 0.22 ppb (3) N/A 0.6 μg/m3 (3) 19.0
 
Jan. 17, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) 0.2 ppb (3) N/A 1.2 μg/m3 (5) 19.0
 
Jan. 17, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) 0.23 ppb (3) N/A 1.2 μg/m3 (5) 16.0
 
Jan. 17, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) 0.22 ppb (3) N/A 1.0 μg/m3 (5) 15.0
 
Jan. 17, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) 0.21 ppb (3) N/A 0.6 μg/m3 (3) 15.0
 
Jan. 17, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) 0.21 ppb (3) N/A 0.6 μg/m3 (3) 14.0
 
Jan. 17, 2021, noon N/A N/A N/A N/A N/A N/A 14.0 ppb (13) 0.21 ppb (3) N/A 0.9 μg/m3 (4) 13.0
 
Jan. 17, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) 0.22 ppb (3) N/A 1.6 μg/m3 (7) 15.0
 
Jan. 17, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) 0.24 ppb (3) N/A 3.8 μg/m3 (16) 16.0
 
Jan. 17, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) 0.22 ppb (3) N/A 3.8 μg/m3 (16) 16.0
 
Jan. 17, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) 0.22 ppb (3) N/A 2.7 μg/m3 (12) 15.0
 
Jan. 17, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) 0.22 ppb (3) N/A 3.5 μg/m3 (15) 17.0
 
Jan. 17, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) 0.21 ppb (3) N/A 2.8 μg/m3 (12) 19.0
 
Jan. 17, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) 0.2 ppb (3) N/A 2.1 μg/m3 (9) 20.0
 
Jan. 17, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) 0.21 ppb (3) N/A 3.6 μg/m3 (16) 19.0
 
Jan. 17, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) 0.24 ppb (3) N/A 4.2 μg/m3 (18) 18.0
 
Jan. 17, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) 0.25 ppb (3) N/A 3.5 μg/m3 (15) 17.0
 
Jan. 17, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) 0.25 ppb (3) N/A 3.8 μg/m3 (16) 17.0
 
Jan. 17, 2021, midnight N/A N/A N/A N/A N/A N/A 18.0 ppb (17) 0.28 ppb (4) N/A 4.5 μg/m3 (19) 19.0
 
Jan. 16, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) 0.27 ppb (4) N/A 5.4 μg/m3 (23) 23.0
 
Jan. 16, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) 0.25 ppb (3) N/A 11.8 μg/m3 (50) 50.0
 
Jan. 16, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) 0.27 ppb (4) N/A 4.3 μg/m3 (18) 18.0
 
Jan. 16, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) 0.27 ppb (4) N/A 3.0 μg/m3 (13) 17.0
 
Jan. 16, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) 0.3 ppb (4) N/A 4.2 μg/m3 (18) 19.0
 
Jan. 16, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) 0.25 ppb (3) N/A 1.2 μg/m3 (5) 19.0
 
Jan. 16, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) 0.25 ppb (3) N/A 1.3 μg/m3 (6) 18.0
 
Jan. 16, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) 0.24 ppb (3) N/A 2.4 μg/m3 (10) 17.0
 
Jan. 16, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) 0.21 ppb (3) N/A 1.9 μg/m3 (8) 16.0
 
Jan. 16, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) 0.22 ppb (3) N/A 2.5 μg/m3 (11) 13.0
 
Jan. 16, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) 0.21 ppb (3) N/A 3.1 μg/m3 (13) 13.0
 
Jan. 16, 2021, noon N/A N/A N/A N/A N/A N/A 15.0 ppb (14) 0.21 ppb (3) N/A 2.5 μg/m3 (11) 14.0
 
Jan. 16, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) 0.24 ppb (3) N/A 3.2 μg/m3 (14) 15.0