ID: 2731

AQSQID: CC0050128

Site Name: A‚Roport De Montr‚Al 1

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

Updated: Sept. 21, 2020, 2:39 p.m.

Location: Montréal (Dorval), N/A

Reporting: True, Located: True

Current AQI: 52.0

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
Sept. 21, 2020, 1 p.m. N/A N/A N/A 23.0 ppb (21) N/A N/A 5.0 ppb (4) 0.27 ppb (3) N/A 13.0 μg/m3 (52) 52.0
 
Sept. 21, 2020, noon N/A N/A N/A 27.0 ppb (25) N/A N/A 1.0 ppb (1) 0.43 ppb (5) N/A 20.1 μg/m3 (67) 67.0
 
Sept. 21, 2020, 11 a.m. N/A N/A N/A 24.0 ppb (22) N/A N/A 0.0 ppb (0) 0.53 ppb (6) N/A 20.3 μg/m3 (68) 68.0
 
Sept. 21, 2020, 10 a.m. N/A N/A N/A 19.0 ppb (18) N/A N/A 0.0 ppb (0) 0.41 ppb (5) N/A 17.7 μg/m3 (62) 62.0
 
Sept. 21, 2020, 9 a.m. N/A N/A N/A 15.0 ppb (14) N/A N/A 0.0 ppb (0) 0.36 ppb (4) N/A 15.3 μg/m3 (57) 57.0
 
Sept. 21, 2020, 8 a.m. N/A N/A N/A 17.0 ppb (16) N/A N/A 0.0 ppb (0) 0.32 ppb (4) N/A 12.6 μg/m3 (51) 51.0
 
Sept. 21, 2020, 7 a.m. N/A N/A N/A 19.0 ppb (18) N/A N/A 1.0 ppb (1) 0.18 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 21, 2020, 6 a.m. N/A N/A N/A 16.0 ppb (15) N/A N/A 7.0 ppb (5) 0.16 ppb (2) N/A 7.5 μg/m3 (31) 31.0
 
Sept. 21, 2020, 5 a.m. N/A N/A N/A 24.0 ppb (22) N/A N/A 2.0 ppb (2) 0.18 ppb (2) N/A 8.7 μg/m3 (36) 36.0
 
Sept. 21, 2020, 4 a.m. N/A N/A N/A 24.0 ppb (22) N/A N/A 3.0 ppb (2) 0.19 ppb (2) N/A 8.3 μg/m3 (35) 35.0
 
Sept. 21, 2020, 3 a.m. N/A N/A N/A 17.0 ppb (16) N/A N/A 10.0 ppb (8) 0.17 ppb (2) N/A 9.1 μg/m3 (38) 38.0
 
Sept. 21, 2020, 2 a.m. N/A N/A N/A 10.0 ppb (9) N/A N/A 17.0 ppb (13) 0.19 ppb (2) N/A 9.4 μg/m3 (39) 39.0
 
Sept. 21, 2020, 1 a.m. N/A N/A N/A 18.0 ppb (17) N/A N/A 12.0 ppb (9) 0.2 ppb (2) N/A 7.3 μg/m3 (30) 30.0
 
Sept. 21, 2020, midnight N/A N/A N/A 12.0 ppb (11) N/A N/A 18.0 ppb (14) 0.18 ppb (2) N/A 6.4 μg/m3 (27) 27.0
 
Sept. 20, 2020, 11 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 28.0 ppb (22) 0.14 ppb (2) N/A 4.4 μg/m3 (18) 22.0
 
Sept. 20, 2020, 10 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 31.0 ppb (24) 0.15 ppb (2) N/A 4.0 μg/m3 (17) 24.0
 
Sept. 20, 2020, 9 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 31.0 ppb (24) 0.14 ppb (2) N/A 3.1 μg/m3 (13) 24.0
 
Sept. 20, 2020, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 31.0 ppb (24) 0.13 ppb (1) N/A 2.6 μg/m3 (11) 24.0
 
Sept. 20, 2020, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 31.0 ppb (24) 0.13 ppb (1) N/A 3.6 μg/m3 (15) 24.0
 
Sept. 20, 2020, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 29.0 ppb (22) 0.13 ppb (1) N/A 3.6 μg/m3 (15) 22.0
 
Sept. 20, 2020, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 27.0 ppb (21) 0.13 ppb (1) N/A 3.4 μg/m3 (14) 21.0
 
Sept. 20, 2020, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 25.0 ppb (19) 0.12 ppb (1) N/A 3.7 μg/m3 (15) 19.0
 
Sept. 20, 2020, 3 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 21.0 ppb (16) 0.13 ppb (1) N/A 3.9 μg/m3 (16) 16.0
 
Sept. 20, 2020, 2 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 19.0 ppb (15) 0.12 ppb (1) N/A 3.6 μg/m3 (15) 15.0
 
Sept. 20, 2020, 1 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 18.0 ppb (14) 0.11 ppb (1) N/A 3.4 μg/m3 (14) 14.0
 
Sept. 20, 2020, noon N/A N/A N/A 1.0 ppb (1) N/A N/A 17.0 ppb (13) 0.12 ppb (1) N/A 3.5 μg/m3 (15) 15.0
 
Sept. 20, 2020, 11 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 14.0 ppb (11) 0.14 ppb (2) N/A 9.3 μg/m3 (39) 39.0
 
Sept. 20, 2020, 10 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 14.0 ppb (11) 0.11 ppb (1) N/A 5.4 μg/m3 (23) 23.0
 
Sept. 20, 2020, 9 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 16.0 ppb (12) 0.12 ppb (1) N/A 4.8 μg/m3 (20) 20.0
 
Sept. 20, 2020, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 15.0 ppb (12) 0.14 ppb (2) N/A 7.8 μg/m3 (32) 32.0
 
Sept. 20, 2020, 7 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 12.0 ppb (9) 0.19 ppb (2) N/A 12.7 μg/m3 (51) 51.0
 
Sept. 20, 2020, 6 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 12.0 ppb (9) 0.19 ppb (2) N/A 12.9 μg/m3 (52) 52.0
 
Sept. 20, 2020, 5 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 15.0 ppb (12) 0.15 ppb (2) N/A 8.3 μg/m3 (35) 35.0
 
Sept. 20, 2020, 4 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 15.0 ppb (12) 0.19 ppb (2) N/A 7.9 μg/m3 (33) 33.0
 
Sept. 20, 2020, 3 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 15.0 ppb (12) 0.17 ppb (2) N/A 6.4 μg/m3 (27) 27.0
 
Sept. 20, 2020, 2 a.m. N/A N/A N/A 10.0 ppb (9) N/A N/A 12.0 ppb (9) 0.17 ppb (2) N/A 5.9 μg/m3 (25) 25.0
 
Sept. 20, 2020, 1 a.m. N/A N/A N/A 11.0 ppb (10) N/A N/A 12.0 ppb (9) 0.18 ppb (2) N/A 6.1 μg/m3 (25) 25.0
 
Sept. 20, 2020, midnight N/A N/A N/A 6.0 ppb (6) N/A N/A 18.0 ppb (14) 0.14 ppb (2) N/A 4.3 μg/m3 (18) 18.0
 
Sept. 19, 2020, 11 p.m. N/A N/A N/A 11.0 ppb (10) N/A N/A 18.0 ppb (14) 0.15 ppb (2) N/A 3.4 μg/m3 (14) 14.0
 
Sept. 19, 2020, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 24.0 ppb (18) 0.13 ppb (1) N/A 2.5 μg/m3 (10) 18.0
 
Sept. 19, 2020, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 27.0 ppb (21) 0.1 ppb (1) N/A 2.0 μg/m3 (8) 21.0
 
Sept. 19, 2020, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 27.0 ppb (21) 0.1 ppb (1) N/A 1.9 μg/m3 (8) 21.0
 
Sept. 19, 2020, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 26.0 ppb (20) 0.1 ppb (1) N/A 1.8 μg/m3 (8) 20.0
 
Sept. 19, 2020, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 26.0 ppb (20) 0.1 ppb (1) N/A 1.9 μg/m3 (8) 20.0
 
Sept. 19, 2020, 5 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 26.0 ppb (20) 0.1 ppb (1) N/A 1.7 μg/m3 (7) 20.0
 
Sept. 19, 2020, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 25.0 ppb (19) 0.11 ppb (1) N/A 1.7 μg/m3 (7) 19.0
 
Sept. 19, 2020, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 23.0 ppb (18) 0.12 ppb (1) N/A 2.1 μg/m3 (9) 18.0
 
Sept. 19, 2020, 2 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 20.0 ppb (15) 0.13 ppb (1) N/A 2.5 μg/m3 (10) 15.0
 
Sept. 19, 2020, 1 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 16.0 ppb (12) 0.17 ppb (2) N/A 2.9 μg/m3 (12) 12.0
 
Sept. 19, 2020, noon N/A N/A N/A 6.0 ppb (6) N/A N/A 12.0 ppb (9) 0.17 ppb (2) N/A 3.1 μg/m3 (13) 13.0
 
Sept. 19, 2020, 11 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 9.0 ppb (7) 0.14 ppb (2) N/A 2.8 μg/m3 (12) 12.0
 
Sept. 19, 2020, 10 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 10.0 ppb (8) 0.13 ppb (1) N/A 2.6 μg/m3 (11) 11.0
 
Sept. 19, 2020, 9 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 11.0 ppb (8) 0.13 ppb (1) N/A 2.7 μg/m3 (11) 11.0
 
Sept. 19, 2020, 8 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 11.0 ppb (8) 0.16 ppb (2) N/A 3.2 μg/m3 (13) 13.0
 
Sept. 19, 2020, 7 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 12.0 ppb (9) 0.14 ppb (2) N/A 3.1 μg/m3 (13) 13.0
 
Sept. 19, 2020, 6 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 14.0 ppb (11) 0.14 ppb (2) N/A 2.8 μg/m3 (12) 12.0
 
Sept. 19, 2020, 5 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 12.0 ppb (9) 0.15 ppb (2) N/A 3.4 μg/m3 (14) 14.0
 
Sept. 19, 2020, 4 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 12.0 ppb (9) 0.17 ppb (2) N/A 3.8 μg/m3 (16) 16.0
 
Sept. 19, 2020, 3 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 12.0 ppb (9) 0.16 ppb (2) N/A 4.2 μg/m3 (18) 18.0
 
Sept. 19, 2020, 2 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 16.0 ppb (12) 0.15 ppb (2) N/A 3.4 μg/m3 (14) 14.0
 
Sept. 19, 2020, 1 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 15.0 ppb (12) 0.13 ppb (1) N/A 2.7 μg/m3 (11) 12.0
 
Sept. 19, 2020, midnight N/A N/A N/A 5.0 ppb (5) N/A N/A 18.0 ppb (14) 0.13 ppb (1) N/A 2.3 μg/m3 (10) 14.0
 
Sept. 18, 2020, 11 p.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 17.0 ppb (13) 0.13 ppb (1) N/A 1.8 μg/m3 (8) 13.0
 
Sept. 18, 2020, 10 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 20.0 ppb (15) 0.12 ppb (1) N/A 1.6 μg/m3 (7) 15.0
 
Sept. 18, 2020, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 23.0 ppb (18) 0.12 ppb (1) N/A 1.6 μg/m3 (7) 18.0
 
Sept. 18, 2020, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 27.0 ppb (21) 0.11 ppb (1) N/A 1.6 μg/m3 (7) 21.0
 
Sept. 18, 2020, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 25.0 ppb (19) 0.11 ppb (1) N/A 1.5 μg/m3 (6) 19.0
 
Sept. 18, 2020, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 26.0 ppb (20) 0.11 ppb (1) N/A 1.5 μg/m3 (6) 20.0
 
Sept. 18, 2020, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 26.0 ppb (20) 0.11 ppb (1) N/A 1.4 μg/m3 (6) 20.0
 
Sept. 18, 2020, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 24.0 ppb (18) 0.1 ppb (1) N/A 1.6 μg/m3 (7) 18.0
 
Sept. 18, 2020, 3 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 21.0 ppb (16) 0.11 ppb (1) N/A 1.8 μg/m3 (8) 16.0
 
Sept. 18, 2020, 2 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 17.0 ppb (13) 0.13 ppb (1) N/A 2.1 μg/m3 (9) 13.0
 
Sept. 18, 2020, 1 p.m. N/A N/A N/A 8.0 ppb (7) N/A N/A 14.0 ppb (11) 0.16 ppb (2) N/A 2.4 μg/m3 (10) 11.0
 
Sept. 18, 2020, noon N/A N/A N/A 11.0 ppb (10) N/A N/A 10.0 ppb (8) 0.18 ppb (2) N/A 2.8 μg/m3 (12) 12.0
 
Sept. 18, 2020, 11 a.m. N/A N/A N/A 14.0 ppb (13) N/A N/A 5.0 ppb (4) 0.18 ppb (2) N/A 2.9 μg/m3 (12) 13.0
 
Sept. 18, 2020, 10 a.m. N/A N/A N/A 14.0 ppb (13) N/A N/A 4.0 ppb (3) 0.16 ppb (2) N/A 2.5 μg/m3 (10) 13.0
 
Sept. 18, 2020, 9 a.m. N/A N/A N/A 9.0 ppb (8) N/A N/A 8.0 ppb (6) 0.12 ppb (1) N/A 1.8 μg/m3 (8) 8.0
 
Sept. 18, 2020, 8 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 12.0 ppb (9) 0.12 ppb (1) N/A 2.2 μg/m3 (9) 9.0
 
Sept. 18, 2020, 7 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 12.0 ppb (9) 0.12 ppb (1) N/A 2.2 μg/m3 (9) 9.0
 
Sept. 18, 2020, 6 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 11.0 ppb (8) 0.14 ppb (2) N/A 3.9 μg/m3 (16) 16.0
 
Sept. 18, 2020, 5 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 11.0 ppb (8) 0.14 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
Sept. 18, 2020, 4 a.m. N/A N/A N/A 11.0 ppb (10) N/A N/A 9.0 ppb (7) 0.2 ppb (2) N/A 4.1 μg/m3 (17) 17.0
 
Sept. 18, 2020, 3 a.m. N/A N/A N/A 14.0 ppb (13) N/A N/A 6.0 ppb (5) 0.2 ppb (2) N/A 3.4 μg/m3 (14) 14.0
 
Sept. 18, 2020, 2 a.m. N/A N/A N/A 17.0 ppb (16) N/A N/A 10.0 ppb (8) 0.15 ppb (2) N/A 2.4 μg/m3 (10) 16.0
 
Sept. 18, 2020, 1 a.m. N/A N/A N/A 15.0 ppb (14) N/A N/A 14.0 ppb (11) 0.15 ppb (2) N/A 2.4 μg/m3 (10) 14.0
 
Sept. 18, 2020, midnight N/A N/A N/A 12.0 ppb (11) N/A N/A 20.0 ppb (15) 0.14 ppb (2) N/A 2.3 μg/m3 (10) 15.0
 
Sept. 17, 2020, 11 p.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 25.0 ppb (19) 0.13 ppb (1) N/A 2.0 μg/m3 (8) 19.0
 
Sept. 17, 2020, 10 p.m. N/A N/A N/A 9.0 ppb (8) N/A N/A 19.0 ppb (15) 0.13 ppb (1) N/A 1.7 μg/m3 (7) 15.0
 
Sept. 17, 2020, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 31.0 ppb (24) 0.11 ppb (1) N/A 0.9 μg/m3 (4) 24.0
 
Sept. 17, 2020, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 30.0 ppb (23) 0.11 ppb (1) N/A 0.6 μg/m3 (2) 23.0
 
Sept. 17, 2020, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 27.0 ppb (21) 0.1 ppb (1) N/A 0.3 μg/m3 (1) 21.0
 
Sept. 17, 2020, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 25.0 ppb (19) 0.1 ppb (1) N/A 0.5 μg/m3 (2) 19.0
 
Sept. 17, 2020, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 23.0 ppb (18) 0.1 ppb (1) N/A 0.5 μg/m3 (2) 18.0
 
Sept. 17, 2020, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 21.0 ppb (16) 0.12 ppb (1) N/A 0.6 μg/m3 (2) 16.0
 
Sept. 17, 2020, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 19.0 ppb (15) 0.12 ppb (1) N/A 0.7 μg/m3 (3) 15.0
 
Sept. 17, 2020, 2 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 16.0 ppb (12) 0.13 ppb (1) N/A 0.9 μg/m3 (4) 12.0
 
Sept. 17, 2020, 1 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 14.0 ppb (11) 0.13 ppb (1) N/A 0.8 μg/m3 (3) 11.0
 
Sept. 17, 2020, noon N/A N/A N/A 5.0 ppb (5) N/A N/A 10.0 ppb (8) 0.14 ppb (2) N/A 0.7 μg/m3 (3) 8.0
 
Sept. 17, 2020, 11 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 8.0 ppb (6) 0.16 ppb (2) N/A 4.4 μg/m3 (18) 18.0
 
Sept. 17, 2020, 10 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 11.0 ppb (8) 0.14 ppb (2) N/A 6.2 μg/m3 (26) 26.0
 
Sept. 17, 2020, 9 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 14.0 ppb (11) 0.14 ppb (2) N/A 6.5 μg/m3 (27) 27.0
 
Sept. 17, 2020, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 17.0 ppb (13) 0.13 ppb (1) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 17, 2020, 7 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 19.0 ppb (15) 0.13 ppb (1) N/A 6.5 μg/m3 (27) 27.0
 
Sept. 17, 2020, 6 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 23.0 ppb (18) 0.17 ppb (2) N/A 16.8 μg/m3 (60) 60.0
 
Sept. 17, 2020, 5 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 25.0 ppb (19) 0.17 ppb (2) N/A 20.5 μg/m3 (68) 68.0
 
Sept. 17, 2020, 4 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 32.0 ppb (25) 0.15 ppb (2) N/A 4.0 μg/m3 (17) 25.0
 
Sept. 17, 2020, 3 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 32.0 ppb (25) 0.16 ppb (2) N/A 1.9 μg/m3 (8) 25.0
 
Sept. 17, 2020, 2 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 35.0 ppb (27) 0.14 ppb (2) N/A 1.6 μg/m3 (7) 27.0
 
Sept. 17, 2020, 1 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 36.0 ppb (28) 0.13 ppb (1) N/A 1.3 μg/m3 (5) 28.0
 
Sept. 17, 2020, midnight N/A N/A N/A 5.0 ppb (5) N/A N/A 35.0 ppb (27) 0.13 ppb (1) N/A 1.6 μg/m3 (7) 27.0
 
Sept. 16, 2020, 11 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 37.0 ppb (28) 0.13 ppb (1) N/A 1.0 μg/m3 (4) 28.0
 
Sept. 16, 2020, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 38.0 ppb (29) 0.14 ppb (2) N/A 1.4 μg/m3 (6) 29.0
 
Sept. 16, 2020, 9 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 36.0 ppb (28) 0.14 ppb (2) N/A 1.9 μg/m3 (8) 28.0
 
Sept. 16, 2020, 8 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 38.0 ppb (29) 0.15 ppb (2) N/A 2.3 μg/m3 (10) 29.0
 
Sept. 16, 2020, 7 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 40.0 ppb (31) 0.15 ppb (2) N/A 2.6 μg/m3 (11) 31.0
 
Sept. 16, 2020, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 40.0 ppb (31) 0.15 ppb (2) N/A 2.3 μg/m3 (10) 31.0
 
Sept. 16, 2020, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 38.0 ppb (29) 0.15 ppb (2) N/A 1.9 μg/m3 (8) 29.0
 
Sept. 16, 2020, 4 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 35.0 ppb (27) 0.16 ppb (2) N/A 1.8 μg/m3 (8) 27.0
 
Sept. 16, 2020, 3 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 32.0 ppb (25) 0.16 ppb (2) N/A 1.5 μg/m3 (6) 25.0
 
Sept. 16, 2020, 2 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 28.0 ppb (22) 0.15 ppb (2) N/A 1.6 μg/m3 (7) 22.0
 
Sept. 16, 2020, 1 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 26.0 ppb (20) 0.15 ppb (2) N/A 1.8 μg/m3 (8) 20.0
 
Sept. 16, 2020, noon N/A N/A N/A 6.0 ppb (6) N/A N/A 18.0 ppb (14) 0.15 ppb (2) N/A 2.2 μg/m3 (9) 14.0
 
Sept. 16, 2020, 11 a.m. N/A N/A N/A 8.0 ppb (7) N/A N/A 12.0 ppb (9) 0.16 ppb (2) N/A 2.5 μg/m3 (10) 10.0
 
Sept. 16, 2020, 10 a.m. N/A N/A N/A 8.0 ppb (7) N/A N/A 12.0 ppb (9) 0.13 ppb (1) N/A 2.4 μg/m3 (10) 10.0
 
Sept. 16, 2020, 9 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 14.0 ppb (11) 0.12 ppb (1) N/A 2.3 μg/m3 (10) 11.0
 
Sept. 16, 2020, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 15.0 ppb (12) 0.11 ppb (1) N/A 2.1 μg/m3 (9) 12.0
 
Sept. 16, 2020, 7 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 15.0 ppb (12) 0.11 ppb (1) N/A 2.0 μg/m3 (8) 12.0
 
Sept. 16, 2020, 6 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 15.0 ppb (12) 0.12 ppb (1) N/A 2.2 μg/m3 (9) 12.0
 
Sept. 16, 2020, 5 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 16.0 ppb (12) 0.12 ppb (1) N/A 2.3 μg/m3 (10) 12.0
 
Sept. 16, 2020, 4 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 18.0 ppb (14) 0.12 ppb (1) N/A 2.9 μg/m3 (12) 14.0
 
Sept. 16, 2020, 3 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 18.0 ppb (14) 0.13 ppb (1) N/A 3.0 μg/m3 (12) 14.0
 
Sept. 16, 2020, 2 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 20.0 ppb (15) 0.13 ppb (1) N/A 2.5 μg/m3 (10) 15.0
 
Sept. 16, 2020, 1 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 19.0 ppb (15) 0.13 ppb (1) N/A 2.7 μg/m3 (11) 15.0
 
Sept. 16, 2020, midnight N/A N/A N/A 8.0 ppb (7) N/A N/A 18.0 ppb (14) 0.14 ppb (2) N/A 2.3 μg/m3 (10) 14.0
 
Sept. 15, 2020, 11 p.m. N/A N/A N/A 13.0 ppb (12) N/A N/A 13.0 ppb (10) 0.15 ppb (2) N/A 2.2 μg/m3 (9) 12.0
 
Sept. 15, 2020, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 22.0 ppb (17) 0.13 ppb (1) N/A 1.8 μg/m3 (8) 17.0
 
Sept. 15, 2020, 9 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 23.0 ppb (18) 0.12 ppb (1) N/A 1.8 μg/m3 (8) 18.0
 
Sept. 15, 2020, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 24.0 ppb (18) 0.12 ppb (1) N/A 1.6 μg/m3 (7) 18.0
 
Sept. 15, 2020, 7 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 24.0 ppb (18) 0.11 ppb (1) N/A 1.7 μg/m3 (7) 18.0
 
Sept. 15, 2020, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 24.0 ppb (18) 0.11 ppb (1) N/A 1.5 μg/m3 (6) 18.0
 
Sept. 15, 2020, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 23.0 ppb (18) 0.11 ppb (1) N/A 1.5 μg/m3 (6) 18.0
 
Sept. 15, 2020, 4 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 20.0 ppb (15) 0.13 ppb (1) N/A 1.9 μg/m3 (8) 15.0
 
Sept. 15, 2020, 3 p.m. N/A N/A N/A 9.0 ppb (8) N/A N/A 16.0 ppb (12) 0.16 ppb (2) N/A 2.8 μg/m3 (12) 12.0
 
Sept. 15, 2020, 2 p.m. N/A N/A N/A 19.0 ppb (18) N/A N/A 6.0 ppb (5) 0.26 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 15, 2020, 1 p.m. N/A N/A N/A 15.0 ppb (14) N/A N/A 4.0 ppb (3) 0.31 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 15, 2020, noon N/A N/A N/A 14.0 ppb (13) N/A N/A 1.0 ppb (1) 0.31 ppb (3) N/A 7.5 μg/m3 (31) 31.0
 
Sept. 15, 2020, 11 a.m. N/A N/A N/A 14.0 ppb (13) N/A N/A 0.0 ppb (0) 0.3 ppb (3) N/A 8.5 μg/m3 (35) 35.0
 
Sept. 15, 2020, 10 a.m. N/A N/A N/A 11.0 ppb (10) N/A N/A 0.0 ppb (0) 0.18 ppb (2) N/A 6.1 μg/m3 (25) 25.0
 
Sept. 15, 2020, 9 a.m. N/A N/A N/A 11.0 ppb (10) N/A N/A 0.0 ppb (0) 0.16 ppb (2) N/A 4.4 μg/m3 (18) 18.0
 
Sept. 15, 2020, 8 a.m. N/A N/A N/A 9.0 ppb (8) N/A N/A 4.0 ppb (3) 0.14 ppb (2) N/A 3.4 μg/m3 (14) 14.0
 
Sept. 15, 2020, 7 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 8.0 ppb (6) 0.13 ppb (1) N/A 3.3 μg/m3 (14) 14.0
 
Sept. 15, 2020, 6 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 11.0 ppb (8) 0.13 ppb (1) N/A 3.0 μg/m3 (12) 12.0
 
Sept. 15, 2020, 5 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 11.0 ppb (8) 0.12 ppb (1) N/A 2.6 μg/m3 (11) 11.0
 
Sept. 15, 2020, 4 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 12.0 ppb (9) 0.13 ppb (1) N/A 2.5 μg/m3 (10) 10.0
 
Sept. 15, 2020, 3 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 14.0 ppb (11) 0.13 ppb (1) N/A 2.5 μg/m3 (10) 11.0
 
Sept. 15, 2020, 2 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 13.0 ppb (10) 0.13 ppb (1) N/A 2.5 μg/m3 (10) 10.0
 
Sept. 15, 2020, 1 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 16.0 ppb (12) 0.13 ppb (1) N/A 2.3 μg/m3 (10) 12.0
 
Sept. 15, 2020, midnight N/A N/A N/A 5.0 ppb (5) N/A N/A 16.0 ppb (12) 0.13 ppb (1) N/A 2.0 μg/m3 (8) 12.0
 
Sept. 14, 2020, 11 p.m. N/A N/A N/A 10.0 ppb (9) N/A N/A 15.0 ppb (12) 0.15 ppb (2) N/A 2.1 μg/m3 (9) 12.0
 
Sept. 14, 2020, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 22.0 ppb (17) 0.11 ppb (1) N/A 0.6 μg/m3 (2) 17.0
 
Sept. 14, 2020, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 25.0 ppb (19) 0.1 ppb (1) N/A 0.2 μg/m3 (1) 19.0
 
Sept. 14, 2020, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 26.0 ppb (20) 0.11 ppb (1) N/A 0.1 μg/m3 (0) 20.0
 
Sept. 14, 2020, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 27.0 ppb (21) 0.1 ppb (1) N/A 0.0 μg/m3 (0) 21.0
 
Sept. 14, 2020, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 27.0 ppb (21) 0.1 ppb (1) N/A 0.0 μg/m3 (0) 21.0
 
Sept. 14, 2020, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 26.0 ppb (20) 0.1 ppb (1) N/A 0.0 μg/m3 (0) 20.0
 
Sept. 14, 2020, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 24.0 ppb (18) 0.12 ppb (1) N/A 0.0 μg/m3 (0) 18.0
 
Sept. 14, 2020, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 23.0 ppb (18) 0.11 ppb (1) N/A 0.0 μg/m3 (0) 18.0
 
Sept. 14, 2020, 2 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 22.0 ppb (17) 0.12 ppb (1) N/A 0.0 μg/m3 (0) 17.0