ID: 2731

AQSQID: CC0050128

Site Name: A‚Roport De Montr‚Al 1

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

Updated: Feb. 26, 2021, 8:32 a.m.

Location: Montréal (Dorval), N/A

Reporting: False, Located: True

Current AQI: None

Montréal (Dorval) N/A, CA: 45.468297, -73.741185

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Feb. 24, 2021, 8 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 29.0 ppb (27) 0.17 ppb (3) N/A 2.6 μg/m3 (11) 27.0
 
Feb. 24, 2021, 7 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 29.0 ppb (27) 0.19 ppb (3) N/A 4.1 μg/m3 (18) 27.0
 
Feb. 24, 2021, 6 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 28.0 ppb (26) 0.22 ppb (3) N/A 6.3 μg/m3 (27) 27.0
 
Feb. 24, 2021, 5 a.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 27.0 ppb (25) 0.24 ppb (3) N/A 7.1 μg/m3 (30) 30.0
 
Feb. 24, 2021, 4 a.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 28.0 ppb (26) 0.22 ppb (3) N/A 6.8 μg/m3 (29) 29.0
 
Feb. 24, 2021, 3 a.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 30.0 ppb (28) 0.19 ppb (3) N/A 6.2 μg/m3 (26) 28.0
 
Feb. 24, 2021, 2 a.m. N/A N/A N/A 8.0 ppb (8) N/A N/A 30.0 ppb (28) 0.26 ppb (4) N/A 6.1 μg/m3 (26) 28.0
 
Feb. 24, 2021, 1 a.m. N/A N/A N/A 8.0 ppb (8) N/A N/A 31.0 ppb (29) 0.25 ppb (3) N/A 7.6 μg/m3 (32) 32.0
 
Feb. 24, 2021, midnight N/A N/A N/A 19.0 ppb (18) N/A N/A 27.0 ppb (25) 0.29 ppb (4) N/A 11.5 μg/m3 (48) 48.0
 
Feb. 23, 2021, 11 p.m. N/A N/A N/A 30.0 ppb (29) N/A N/A 24.0 ppb (23) 0.37 ppb (5) N/A 13.6 μg/m3 (55) 55.0
 
Feb. 23, 2021, 10 p.m. N/A N/A N/A 15.0 ppb (15) N/A N/A 33.0 ppb (31) 0.26 ppb (4) N/A 15.3 μg/m3 (58) 58.0
 
Feb. 23, 2021, 9 p.m. N/A N/A N/A 10.0 ppb (10) N/A N/A 37.0 ppb (35) 0.24 ppb (3) N/A 15.2 μg/m3 (58) 58.0
 
Feb. 23, 2021, 8 p.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 38.0 ppb (36) 0.22 ppb (3) N/A 15.8 μg/m3 (59) 59.0
 
Feb. 23, 2021, 7 p.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 39.0 ppb (37) 0.21 ppb (3) N/A 15.7 μg/m3 (59) 59.0
 
Feb. 23, 2021, 6 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 40.0 ppb (38) 0.2 ppb (3) N/A 15.2 μg/m3 (58) 58.0
 
Feb. 23, 2021, 5 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 39.0 ppb (37) 0.2 ppb (3) N/A N/A 37.0
 
Feb. 23, 2021, 4 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 40.0 ppb (38) 0.19 ppb (3) N/A 18.2 μg/m3 (64) 64.0
 
Feb. 23, 2021, 3 p.m. N/A N/A N/A 10.0 ppb (10) N/A N/A 37.0 ppb (35) 0.21 ppb (3) N/A 19.1 μg/m3 (66) 66.0
 
Feb. 23, 2021, 2 p.m. N/A N/A N/A 8.0 ppb (8) N/A N/A 38.0 ppb (36) 0.23 ppb (3) N/A 20.0 μg/m3 (68) 68.0
 
Feb. 20, 2021, 2 a.m. N/A N/A N/A 16.0 ppb (16) N/A N/A 22.0 ppb (21) 0.26 ppb (4) N/A 17.2 μg/m3 (62) 62.0
 
Feb. 20, 2021, 1 a.m. N/A N/A N/A 20.0 ppb (19) N/A N/A 20.0 ppb (19) 0.28 ppb (4) N/A 17.4 μg/m3 (63) 63.0
 
Feb. 20, 2021, midnight N/A N/A N/A 22.0 ppb (21) N/A N/A 19.0 ppb (18) 0.3 ppb (4) N/A 18.5 μg/m3 (65) 65.0
 
Feb. 19, 2021, 11 p.m. N/A N/A N/A 22.0 ppb (21) N/A N/A 20.0 ppb (19) 0.31 ppb (4) N/A 17.8 μg/m3 (63) 63.0
 
Feb. 19, 2021, 10 p.m. N/A N/A N/A 20.0 ppb (19) N/A N/A 23.0 ppb (22) 0.31 ppb (4) N/A 15.2 μg/m3 (58) 58.0
 
Feb. 19, 2021, 9 p.m. N/A N/A N/A 17.0 ppb (17) N/A N/A 26.0 ppb (25) 0.29 ppb (4) N/A 13.3 μg/m3 (54) 54.0
 
Feb. 19, 2021, 8 p.m. N/A N/A N/A 13.0 ppb (13) N/A N/A 29.0 ppb (27) 0.26 ppb (4) N/A 9.4 μg/m3 (40) 40.0
 
Feb. 19, 2021, 7 p.m. N/A N/A N/A 11.0 ppb (11) N/A N/A 31.0 ppb (29) 0.26 ppb (4) N/A 8.5 μg/m3 (36) 36.0
 
Feb. 19, 2021, 6 p.m. N/A N/A N/A 11.0 ppb (11) N/A N/A 30.0 ppb (28) 0.25 ppb (3) N/A 9.5 μg/m3 (40) 40.0
 
Feb. 19, 2021, 5 p.m. N/A N/A N/A 14.0 ppb (14) N/A N/A 27.0 ppb (25) 0.28 ppb (4) N/A 10.9 μg/m3 (46) 46.0
 
Feb. 19, 2021, 4 p.m. N/A N/A N/A 13.0 ppb (13) N/A N/A 27.0 ppb (25) 0.28 ppb (4) N/A 13.0 μg/m3 (53) 53.0
 
Feb. 19, 2021, 3 p.m. N/A N/A N/A 19.0 ppb (18) N/A N/A 22.0 ppb (21) 0.37 ppb (5) N/A 18.2 μg/m3 (64) 64.0
 
Feb. 19, 2021, 2 p.m. N/A N/A N/A 28.0 ppb (27) N/A N/A 14.0 ppb (13) 0.42 ppb (5) N/A 26.3 μg/m3 (81) 81.0
 
Feb. 19, 2021, 1 p.m. N/A N/A N/A 31.0 ppb (30) N/A N/A 11.0 ppb (11) 0.42 ppb (5) N/A 26.4 μg/m3 (82) 82.0
 
Feb. 19, 2021, noon N/A N/A N/A 31.0 ppb (30) N/A N/A 8.0 ppb (8) 0.4 ppb (5) N/A 29.7 μg/m3 (89) 89.0
 
Feb. 19, 2021, 11 a.m. N/A N/A N/A 39.0 ppb (37) N/A N/A 3.0 ppb (3) 0.33 ppb (4) N/A 26.8 μg/m3 (82) 82.0
 
Feb. 19, 2021, 10 a.m. N/A N/A N/A 30.0 ppb (29) N/A N/A 9.0 ppb (9) 0.31 ppb (4) N/A 27.4 μg/m3 (84) 84.0
 
Feb. 19, 2021, 9 a.m. N/A N/A N/A 25.0 ppb (24) N/A N/A 12.0 ppb (12) 0.29 ppb (4) N/A 30.4 μg/m3 (90) 90.0
 
Feb. 19, 2021, 8 a.m. N/A N/A N/A 36.0 ppb (34) N/A N/A 6.0 ppb (6) 0.28 ppb (4) N/A 23.2 μg/m3 (75) 75.0
 
Feb. 18, 2021, 5 a.m. N/A N/A N/A 23.0 ppb (22) N/A N/A 16.0 ppb (15) 0.24 ppb (3) N/A 9.3 μg/m3 (39) 39.0
 
Feb. 18, 2021, 4 a.m. N/A N/A N/A 22.0 ppb (21) N/A N/A 15.0 ppb (14) 0.28 ppb (4) N/A 9.2 μg/m3 (39) 39.0
 
Feb. 18, 2021, 3 a.m. N/A N/A N/A 19.0 ppb (18) N/A N/A 17.0 ppb (16) 0.25 ppb (3) N/A 10.6 μg/m3 (45) 45.0
 
Feb. 18, 2021, 2 a.m. N/A N/A N/A 22.0 ppb (21) N/A N/A 14.0 ppb (13) 0.28 ppb (4) N/A 10.7 μg/m3 (45) 45.0
 
Feb. 18, 2021, 1 a.m. N/A N/A N/A 26.0 ppb (25) N/A N/A 11.0 ppb (11) 0.25 ppb (3) N/A 8.5 μg/m3 (36) 36.0
 
Feb. 18, 2021, midnight N/A N/A N/A 13.0 ppb (13) N/A N/A 24.0 ppb (23) 0.21 ppb (3) N/A 5.8 μg/m3 (25) 25.0
 
Feb. 17, 2021, 11 p.m. N/A N/A N/A 10.0 ppb (10) N/A N/A 27.0 ppb (25) 0.2 ppb (3) N/A 4.8 μg/m3 (20) 25.0
 
Feb. 17, 2021, 10 p.m. N/A N/A N/A 10.0 ppb (10) N/A N/A 26.0 ppb (25) 0.18 ppb (3) N/A 4.2 μg/m3 (18) 25.0
 
Feb. 17, 2021, 9 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 30.0 ppb (28) 0.16 ppb (3) N/A 3.0 μg/m3 (13) 28.0
 
Feb. 17, 2021, 8 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 31.0 ppb (29) 0.15 ppb (2) N/A 3.2 μg/m3 (14) 29.0
 
Feb. 17, 2021, 7 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 31.0 ppb (29) 0.15 ppb (2) N/A 3.2 μg/m3 (14) 29.0
 
Feb. 17, 2021, 6 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 30.0 ppb (28) 0.16 ppb (3) N/A 2.9 μg/m3 (13) 28.0
 
Feb. 17, 2021, 5 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 29.0 ppb (27) 0.14 ppb (2) N/A 3.0 μg/m3 (13) 27.0
 
Feb. 17, 2021, 4 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 30.0 ppb (28) 0.15 ppb (2) N/A 3.1 μg/m3 (13) 28.0
 
Feb. 17, 2021, 3 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 30.0 ppb (28) 0.26 ppb (4) N/A 3.0 μg/m3 (13) 28.0
 
Feb. 17, 2021, 2 p.m. N/A N/A N/A 8.0 ppb (8) N/A N/A 27.0 ppb (25) 0.18 ppb (3) N/A 2.6 μg/m3 (11) 25.0
 
Feb. 17, 2021, 1 p.m. N/A N/A N/A 9.0 ppb (9) N/A N/A 26.0 ppb (25) 0.18 ppb (3) N/A 2.5 μg/m3 (11) 25.0
 
Feb. 17, 2021, noon N/A N/A N/A 12.0 ppb (12) N/A N/A 23.0 ppb (22) 0.17 ppb (3) N/A 2.2 μg/m3 (10) 22.0
 
Feb. 17, 2021, 11 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 27.0 ppb (25) 0.15 ppb (2) N/A 1.8 μg/m3 (8) 25.0
 
Feb. 17, 2021, 10 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 28.0 ppb (26) 0.14 ppb (2) N/A 2.0 μg/m3 (9) 26.0
 
Feb. 17, 2021, 9 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 29.0 ppb (27) 0.14 ppb (2) N/A 1.7 μg/m3 (8) 27.0
 
Feb. 17, 2021, 8 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 28.0 ppb (26) 0.13 ppb (2) N/A 1.8 μg/m3 (8) 26.0
 
Feb. 17, 2021, 7 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 26.0 ppb (25) 0.14 ppb (2) N/A 2.1 μg/m3 (9) 25.0
 
Feb. 17, 2021, 6 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 26.0 ppb (25) 0.14 ppb (2) N/A 2.3 μg/m3 (10) 25.0
 
Feb. 17, 2021, 5 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 27.0 ppb (25) 0.14 ppb (2) N/A 1.9 μg/m3 (8) 25.0
 
Feb. 17, 2021, 4 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 25.0 ppb (24) 0.15 ppb (2) N/A 2.8 μg/m3 (12) 24.0
 
Feb. 17, 2021, 3 a.m. N/A N/A N/A 10.0 ppb (10) N/A N/A 22.0 ppb (21) 0.16 ppb (3) N/A 3.0 μg/m3 (13) 21.0
 
Feb. 17, 2021, 2 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 26.0 ppb (25) 0.16 ppb (3) N/A 3.0 μg/m3 (13) 25.0
 
Feb. 17, 2021, 1 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 25.0 ppb (24) 0.17 ppb (3) N/A 3.0 μg/m3 (13) 24.0
 
Feb. 17, 2021, midnight N/A N/A N/A 8.0 ppb (8) N/A N/A 24.0 ppb (23) 0.2 ppb (3) N/A 3.4 μg/m3 (15) 23.0
 
Feb. 16, 2021, 11 p.m. N/A N/A N/A 8.0 ppb (8) N/A N/A 24.0 ppb (23) 0.19 ppb (3) N/A 3.0 μg/m3 (13) 23.0
 
Feb. 16, 2021, 10 p.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 27.0 ppb (25) 0.21 ppb (3) N/A 5.5 μg/m3 (23) 25.0
 
Feb. 16, 2021, 9 p.m. N/A N/A N/A 11.0 ppb (11) N/A N/A 27.0 ppb (25) 0.25 ppb (3) N/A 10.2 μg/m3 (43) 43.0
 
Feb. 16, 2021, 8 p.m. N/A N/A N/A 14.0 ppb (14) N/A N/A 25.0 ppb (24) 0.27 ppb (4) N/A 8.2 μg/m3 (35) 35.0
 
Feb. 16, 2021, 7 p.m. N/A N/A N/A 22.0 ppb (21) N/A N/A 20.0 ppb (19) 0.28 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Feb. 16, 2021, 6 p.m. N/A N/A N/A 19.0 ppb (18) N/A N/A 22.0 ppb (21) 0.27 ppb (4) N/A 7.6 μg/m3 (32) 32.0
 
Feb. 16, 2021, 5 p.m. N/A N/A N/A 15.0 ppb (15) N/A N/A 23.0 ppb (22) 0.24 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Feb. 16, 2021, 4 p.m. N/A N/A N/A 16.0 ppb (16) N/A N/A 22.0 ppb (21) 0.24 ppb (3) N/A 8.8 μg/m3 (37) 37.0
 
Feb. 16, 2021, 3 p.m. N/A N/A N/A 19.0 ppb (18) N/A N/A 19.0 ppb (18) 0.26 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Feb. 16, 2021, 2 p.m. N/A N/A N/A 17.0 ppb (17) N/A N/A 20.0 ppb (19) 0.24 ppb (3) N/A 10.8 μg/m3 (46) 46.0
 
Feb. 16, 2021, 1 p.m. N/A N/A N/A 17.0 ppb (17) N/A N/A 18.0 ppb (17) 0.24 ppb (3) N/A 11.3 μg/m3 (48) 48.0
 
Feb. 12, 2021, 10 a.m. N/A N/A N/A 10.0 ppb (10) N/A N/A 26.0 ppb (25) 0.17 ppb (3) N/A 3.6 μg/m3 (16) 25.0
 
Feb. 12, 2021, 9 a.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 29.0 ppb (27) 0.15 ppb (2) N/A 3.2 μg/m3 (14) 27.0
 
Feb. 12, 2021, 8 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 31.0 ppb (29) 0.15 ppb (2) N/A 3.5 μg/m3 (15) 29.0
 
Feb. 12, 2021, 7 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 31.0 ppb (29) 0.15 ppb (2) N/A 3.5 μg/m3 (15) 29.0
 
Feb. 12, 2021, 6 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 32.0 ppb (30) 0.14 ppb (2) N/A 3.4 μg/m3 (15) 30.0
 
Feb. 12, 2021, 5 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 32.0 ppb (30) 0.14 ppb (2) N/A 3.1 μg/m3 (13) 30.0
 
Feb. 12, 2021, 4 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 31.0 ppb (29) 0.14 ppb (2) N/A 3.2 μg/m3 (14) 29.0
 
Feb. 12, 2021, 3 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 31.0 ppb (29) 0.14 ppb (2) N/A 2.8 μg/m3 (12) 29.0
 
Feb. 12, 2021, 2 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 31.0 ppb (29) 0.13 ppb (2) N/A 2.8 μg/m3 (12) 29.0
 
Feb. 12, 2021, 1 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 33.0 ppb (31) 0.14 ppb (2) N/A 3.2 μg/m3 (14) 31.0
 
Feb. 12, 2021, midnight N/A N/A N/A 3.0 ppb (3) N/A N/A 34.0 ppb (32) 0.13 ppb (2) N/A 2.7 μg/m3 (12) 32.0
 
Feb. 11, 2021, 11 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 33.0 ppb (31) 0.13 ppb (2) N/A 2.5 μg/m3 (11) 31.0
 
Feb. 11, 2021, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 32.0 ppb (30) 0.14 ppb (2) N/A 2.7 μg/m3 (12) 30.0
 
Feb. 11, 2021, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 34.0 ppb (32) 0.14 ppb (2) N/A 2.2 μg/m3 (10) 32.0
 
Feb. 11, 2021, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 35.0 ppb (33) 0.14 ppb (2) N/A 2.3 μg/m3 (10) 33.0
 
Feb. 11, 2021, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 35.0 ppb (33) 0.14 ppb (2) N/A 2.1 μg/m3 (9) 33.0
 
Feb. 11, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A 0.14 ppb (2) N/A 2.5 μg/m3 (11) 11.0
 
Feb. 11, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) 0.14 ppb (2) N/A 2.6 μg/m3 (11) 35.0
 
Feb. 11, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) 0.15 ppb (2) N/A 3.2 μg/m3 (14) 35.0
 
Feb. 11, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) 0.16 ppb (3) N/A 4.0 μg/m3 (17) 34.0
 
Feb. 11, 2021, 2 p.m. N/A N/A N/A 13.0 ppb (13) N/A N/A 28.0 ppb (26) 0.26 ppb (4) N/A 9.8 μg/m3 (41) 41.0
 
Feb. 11, 2021, 1 p.m. N/A N/A N/A 23.0 ppb (22) N/A N/A 18.0 ppb (17) 0.32 ppb (4) N/A 13.0 μg/m3 (53) 53.0
 
Feb. 11, 2021, noon N/A N/A N/A 26.0 ppb (25) N/A N/A 13.0 ppb (13) 0.28 ppb (4) N/A 12.6 μg/m3 (53) 53.0
 
Feb. 11, 2021, 11 a.m. N/A N/A N/A 33.0 ppb (32) N/A N/A 8.0 ppb (8) 0.26 ppb (4) N/A 14.2 μg/m3 (56) 56.0
 
Feb. 11, 2021, 10 a.m. N/A N/A N/A 32.0 ppb (31) N/A N/A 8.0 ppb (8) 0.28 ppb (4) N/A 16.8 μg/m3 (61) 61.0
 
Feb. 11, 2021, 9 a.m. N/A N/A N/A 23.0 ppb (22) N/A N/A 16.0 ppb (15) 0.24 ppb (3) N/A 12.1 μg/m3 (51) 51.0
 
Feb. 11, 2021, 8 a.m. N/A N/A N/A 23.0 ppb (22) N/A N/A 17.0 ppb (16) 0.22 ppb (3) N/A 9.2 μg/m3 (39) 39.0
 
Feb. 11, 2021, 7 a.m. N/A N/A N/A 36.0 ppb (34) N/A N/A 4.0 ppb (4) 0.33 ppb (4) N/A 12.6 μg/m3 (53) 53.0
 
Feb. 11, 2021, 6 a.m. N/A N/A N/A 32.0 ppb (31) N/A N/A 7.0 ppb (7) 0.28 ppb (4) N/A 12.5 μg/m3 (52) 52.0
 
Feb. 11, 2021, 5 a.m. N/A N/A N/A 19.0 ppb (18) N/A N/A 20.0 ppb (19) 0.21 ppb (3) N/A 9.2 μg/m3 (39) 39.0
 
Feb. 11, 2021, 4 a.m. N/A N/A N/A 14.0 ppb (14) N/A N/A 26.0 ppb (25) 0.18 ppb (3) N/A 6.3 μg/m3 (27) 27.0
 
Feb. 11, 2021, 3 a.m. N/A N/A N/A 12.0 ppb (12) N/A N/A 29.0 ppb (27) 0.18 ppb (3) N/A 5.8 μg/m3 (25) 27.0
 
Feb. 11, 2021, 2 a.m. N/A N/A N/A 12.0 ppb (12) N/A N/A 29.0 ppb (27) 0.19 ppb (3) N/A 5.8 μg/m3 (25) 27.0
 
Feb. 11, 2021, 1 a.m. N/A N/A N/A 11.0 ppb (11) N/A N/A 31.0 ppb (29) 0.18 ppb (3) N/A 5.2 μg/m3 (22) 29.0
 
Feb. 11, 2021, midnight N/A N/A N/A 13.0 ppb (13) N/A N/A 29.0 ppb (27) 0.25 ppb (3) N/A 6.9 μg/m3 (29) 29.0
 
Feb. 10, 2021, 11 p.m. N/A N/A N/A 19.0 ppb (18) N/A N/A 26.0 ppb (25) 0.27 ppb (4) N/A 5.3 μg/m3 (23) 25.0
 
Feb. 10, 2021, 10 p.m. N/A N/A N/A 9.0 ppb (9) N/A N/A 34.0 ppb (32) 0.18 ppb (3) N/A 3.7 μg/m3 (16) 32.0
 
Feb. 10, 2021, 9 p.m. N/A N/A N/A 8.0 ppb (8) N/A N/A 35.0 ppb (33) 0.17 ppb (3) N/A 2.8 μg/m3 (12) 33.0
 
Feb. 10, 2021, 8 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 39.0 ppb (37) 0.18 ppb (3) N/A 2.2 μg/m3 (10) 37.0
 
Feb. 10, 2021, 7 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 38.0 ppb (36) 0.18 ppb (3) N/A 2.6 μg/m3 (11) 36.0
 
Feb. 10, 2021, 6 p.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 36.0 ppb (34) 0.18 ppb (3) N/A 2.9 μg/m3 (13) 34.0
 
Feb. 10, 2021, 5 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 39.0 ppb (37) 0.15 ppb (2) N/A 1.8 μg/m3 (8) 37.0
 
Feb. 10, 2021, 4 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 36.0 ppb (34) 0.17 ppb (3) N/A 2.2 μg/m3 (10) 34.0
 
Feb. 10, 2021, 3 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 35.0 ppb (33) 0.19 ppb (3) N/A 3.7 μg/m3 (16) 33.0
 
Feb. 10, 2021, 2 p.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 33.0 ppb (31) 0.2 ppb (3) N/A 8.6 μg/m3 (36) 36.0
 
Feb. 10, 2021, 1 p.m. N/A N/A N/A 15.0 ppb (15) N/A N/A 23.0 ppb (22) 0.32 ppb (4) N/A 15.4 μg/m3 (58) 58.0
 
Feb. 10, 2021, noon N/A N/A N/A 33.0 ppb (32) N/A N/A 6.0 ppb (6) 0.36 ppb (5) N/A 20.5 μg/m3 (69) 69.0
 
Feb. 10, 2021, 11 a.m. N/A N/A N/A 31.0 ppb (30) N/A N/A 6.0 ppb (6) 0.36 ppb (5) N/A 24.5 μg/m3 (78) 78.0
 
Feb. 10, 2021, 10 a.m. N/A N/A N/A 29.0 ppb (28) N/A N/A 6.0 ppb (6) 0.35 ppb (4) N/A 29.6 μg/m3 (88) 88.0
 
Feb. 10, 2021, 9 a.m. N/A N/A N/A 37.0 ppb (35) N/A N/A 0.0 ppb (0) 0.39 ppb (5) N/A 32.9 μg/m3 (95) 95.0
 
Feb. 10, 2021, 8 a.m. N/A N/A N/A 37.0 ppb (35) N/A N/A 0.0 ppb (0) 0.43 ppb (5) N/A 34.9 μg/m3 (99) 99.0
 
Feb. 10, 2021, 7 a.m. N/A N/A N/A 40.0 ppb (38) N/A N/A 0.0 ppb (0) 0.57 ppb (7) N/A 39.2 μg/m3 (111) 111.0
 
Feb. 10, 2021, 6 a.m. N/A N/A N/A 42.0 ppb (40) N/A N/A 0.0 ppb (0) 0.53 ppb (6) N/A 41.1 μg/m3 (115) 115.0
 
Feb. 10, 2021, 5 a.m. N/A N/A N/A 42.0 ppb (40) N/A N/A 0.0 ppb (0) 0.63 ppb (7) N/A 46.3 μg/m3 (128) 128.0
 
Feb. 10, 2021, 4 a.m. N/A N/A N/A 42.0 ppb (40) N/A N/A 0.0 ppb (0) 0.6 ppb (7) N/A 48.8 μg/m3 (134) 134.0
 
Feb. 10, 2021, 3 a.m. N/A N/A N/A 44.0 ppb (42) N/A N/A 0.0 ppb (0) 0.55 ppb (7) N/A 38.1 μg/m3 (108) 108.0
 
Feb. 10, 2021, 2 a.m. N/A N/A N/A 42.0 ppb (40) N/A N/A 0.0 ppb (0) 0.51 ppb (6) N/A 33.9 μg/m3 (97) 97.0
 
Feb. 10, 2021, 1 a.m. N/A N/A N/A 45.0 ppb (43) N/A N/A 0.0 ppb (0) 0.55 ppb (7) N/A 35.9 μg/m3 (102) 102.0
 
Feb. 10, 2021, midnight N/A N/A N/A 43.0 ppb (41) N/A N/A 0.0 ppb (0) 0.48 ppb (6) N/A 25.2 μg/m3 (79) 79.0
 
Feb. 9, 2021, 11 p.m. N/A N/A N/A 41.0 ppb (39) N/A N/A 2.0 ppb (2) 0.43 ppb (5) N/A 20.9 μg/m3 (70) 70.0
 
Feb. 9, 2021, 10 p.m. N/A N/A N/A 34.0 ppb (33) N/A N/A 10.0 ppb (10) 0.36 ppb (5) N/A 16.5 μg/m3 (61) 61.0
 
Feb. 9, 2021, 9 p.m. N/A N/A N/A 23.0 ppb (22) N/A N/A 20.0 ppb (19) 0.32 ppb (4) N/A 15.2 μg/m3 (58) 58.0
 
Feb. 9, 2021, 8 p.m. N/A N/A N/A 21.0 ppb (20) N/A N/A 21.0 ppb (20) 0.34 ppb (4) N/A 19.9 μg/m3 (68) 68.0
 
Feb. 9, 2021, 7 p.m. N/A N/A N/A 22.0 ppb (21) N/A N/A 21.0 ppb (20) 0.33 ppb (4) N/A 20.8 μg/m3 (70) 70.0
 
Feb. 9, 2021, 6 p.m. N/A N/A N/A 17.0 ppb (17) N/A N/A 23.0 ppb (22) 0.33 ppb (4) N/A 20.4 μg/m3 (69) 69.0
 
Feb. 9, 2021, 5 p.m. N/A N/A N/A 20.0 ppb (19) N/A N/A 20.0 ppb (19) 0.34 ppb (4) N/A 18.9 μg/m3 (66) 66.0
 
Feb. 9, 2021, 4 p.m. N/A N/A N/A 24.0 ppb (23) N/A N/A 16.0 ppb (15) 0.39 ppb (5) N/A 20.4 μg/m3 (69) 69.0
 
Feb. 9, 2021, 3 p.m. N/A N/A N/A 28.0 ppb (27) N/A N/A 12.0 ppb (12) 0.45 ppb (6) N/A 19.5 μg/m3 (67) 67.0
 
Feb. 9, 2021, 2 p.m. N/A N/A N/A 31.0 ppb (30) N/A N/A 9.0 ppb (9) 0.47 ppb (6) N/A 18.5 μg/m3 (65) 65.0
 
Feb. 9, 2021, 1 p.m. N/A N/A N/A 34.0 ppb (33) N/A N/A 7.0 ppb (7) 0.35 ppb (4) N/A 12.6 μg/m3 (53) 53.0
 
Feb. 9, 2021, noon N/A N/A N/A 39.0 ppb (37) N/A N/A 3.0 ppb (3) 0.28 ppb (4) N/A 9.5 μg/m3 (40) 40.0
 
Feb. 9, 2021, 11 a.m. N/A N/A N/A 42.0 ppb (40) N/A N/A 0.0 ppb (0) 0.26 ppb (4) N/A 9.7 μg/m3 (41) 41.0
 
Feb. 9, 2021, 10 a.m. N/A N/A N/A 40.0 ppb (38) N/A N/A 2.0 ppb (2) 0.25 ppb (3) N/A 9.7 μg/m3 (41) 41.0
 
Feb. 9, 2021, 9 a.m. N/A N/A N/A 39.0 ppb (37) N/A N/A 4.0 ppb (4) 0.22 ppb (3) N/A 8.8 μg/m3 (37) 37.0
 
Feb. 9, 2021, 8 a.m. N/A N/A N/A 27.0 ppb (26) N/A N/A 14.0 ppb (13) 0.2 ppb (3) N/A 8.6 μg/m3 (36) 36.0
 
Feb. 9, 2021, 7 a.m. N/A N/A N/A 9.0 ppb (9) N/A N/A 28.0 ppb (26) 0.17 ppb (3) N/A 6.4 μg/m3 (27) 27.0
 
Feb. 9, 2021, 6 a.m. N/A N/A N/A 21.0 ppb (20) N/A N/A 19.0 ppb (18) 0.19 ppb (3) N/A 6.6 μg/m3 (28) 28.0
 
Feb. 9, 2021, 5 a.m. N/A N/A N/A 17.0 ppb (17) N/A N/A 23.0 ppb (22) 0.18 ppb (3) N/A 5.9 μg/m3 (25) 25.0
 
Feb. 9, 2021, 4 a.m. N/A N/A N/A 8.0 ppb (8) N/A N/A 32.0 ppb (30) 0.16 ppb (3) N/A 4.0 μg/m3 (17) 30.0
 
Feb. 9, 2021, 3 a.m. N/A N/A N/A 12.0 ppb (12) N/A N/A 28.0 ppb (26) 0.16 ppb (3) N/A 4.3 μg/m3 (18) 26.0
 
Feb. 9, 2021, 2 a.m. N/A N/A N/A 12.0 ppb (12) N/A N/A 26.0 ppb (25) 0.19 ppb (3) N/A 8.4 μg/m3 (36) 36.0
 
Feb. 9, 2021, 1 a.m. N/A N/A N/A 30.0 ppb (29) N/A N/A 10.0 ppb (10) 0.34 ppb (4) N/A 11.1 μg/m3 (47) 47.0
 
Feb. 9, 2021, midnight N/A N/A N/A 20.0 ppb (19) N/A N/A 19.0 ppb (18) 0.22 ppb (3) N/A 6.6 μg/m3 (28) 28.0
 
Feb. 8, 2021, 11 p.m. N/A N/A N/A 14.0 ppb (14) N/A N/A 27.0 ppb (25) 0.19 ppb (3) N/A 5.1 μg/m3 (22) 25.0
 
Feb. 8, 2021, 10 p.m. N/A N/A N/A 9.0 ppb (9) N/A N/A 31.0 ppb (29) 0.17 ppb (3) N/A 3.4 μg/m3 (15) 29.0
 
Feb. 8, 2021, 9 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 36.0 ppb (34) 0.15 ppb (2) N/A 2.8 μg/m3 (12) 34.0
 
Feb. 8, 2021, 8 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 36.0 ppb (34) 0.16 ppb (3) N/A 2.6 μg/m3 (11) 34.0
 
Feb. 8, 2021, 7 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 36.0 ppb (34) 0.16 ppb (3) N/A 2.9 μg/m3 (13) 34.0
 
Feb. 8, 2021, 6 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 34.0 ppb (32) 0.17 ppb (3) N/A 3.1 μg/m3 (13) 32.0