ID: 2732

AQSQID: CC0050129

Site Name: RiviŠRe-Des-Prairies

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

Updated: Aug. 1, 2021, 2:55 a.m.

Location: Montréal (St François), N/A

Reporting: True, Located: True

Current AQI: 22.0

Montréal (St François) N/A, CA: 45.651722, -73.573896

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Aug. 1, 2021, 1 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 23.0 ppb (22) 0.15 ppb (2) N/A 2.4 μg/m3 (10) 22.0
 
Aug. 1, 2021, midnight N/A N/A N/A 1.0 ppb (1) N/A N/A 24.0 ppb (23) 0.13 ppb (2) N/A 2.5 μg/m3 (11) 23.0
 
July 31, 2021, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 24.0 ppb (23) 0.13 ppb (2) N/A 2.3 μg/m3 (10) 23.0
 
July 31, 2021, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 26.0 ppb (25) 0.12 ppb (2) N/A 2.3 μg/m3 (10) 25.0
 
July 31, 2021, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 28.0 ppb (26) 0.12 ppb (2) N/A 2.2 μg/m3 (10) 26.0
 
July 31, 2021, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 28.0 ppb (26) 0.11 ppb (2) N/A 2.0 μg/m3 (9) 26.0
 
July 31, 2021, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 29.0 ppb (27) 0.11 ppb (2) N/A 2.0 μg/m3 (9) 27.0
 
July 31, 2021, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 29.0 ppb (27) 0.11 ppb (2) N/A 1.9 μg/m3 (8) 27.0
 
July 31, 2021, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 29.0 ppb (27) 0.11 ppb (2) N/A 1.8 μg/m3 (8) 27.0
 
July 31, 2021, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 28.0 ppb (26) 0.13 ppb (2) N/A 1.7 μg/m3 (8) 26.0
 
July 31, 2021, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 29.0 ppb (27) 0.16 ppb (3) N/A 1.7 μg/m3 (8) 27.0
 
July 31, 2021, 2 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 26.0 ppb (25) 0.13 ppb (2) N/A 1.7 μg/m3 (8) 25.0
 
July 31, 2021, 1 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 22.0 ppb (21) 0.12 ppb (2) N/A 1.7 μg/m3 (8) 21.0
 
July 31, 2021, noon N/A N/A N/A 1.0 ppb (1) N/A N/A 17.0 ppb (16) 0.12 ppb (2) N/A 2.2 μg/m3 (10) 16.0
 
July 31, 2021, 11 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 16.0 ppb (15) 0.12 ppb (2) N/A 2.5 μg/m3 (11) 15.0
 
July 31, 2021, 10 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 15.0 ppb (14) 0.11 ppb (2) N/A 3.0 μg/m3 (13) 14.0
 
July 31, 2021, 9 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 16.0 ppb (15) 0.11 ppb (2) N/A 2.8 μg/m3 (12) 15.0
 
July 31, 2021, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 16.0 ppb (15) 0.1 ppb (2) N/A 2.7 μg/m3 (12) 15.0
 
July 31, 2021, 7 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 19.0 ppb (18) 0.1 ppb (2) N/A 3.0 μg/m3 (13) 18.0
 
July 31, 2021, 6 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 19.0 ppb (18) 0.1 ppb (2) N/A 2.9 μg/m3 (13) 18.0
 
July 31, 2021, 5 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 19.0 ppb (18) 0.1 ppb (2) N/A 3.0 μg/m3 (13) 18.0
 
July 31, 2021, 4 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 20.0 ppb (19) 0.11 ppb (2) N/A 3.3 μg/m3 (14) 19.0
 
July 31, 2021, 3 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 21.0 ppb (20) 0.1 ppb (2) N/A 3.7 μg/m3 (16) 20.0
 
July 31, 2021, 2 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 21.0 ppb (20) 0.1 ppb (2) N/A 2.9 μg/m3 (13) 20.0
 
July 31, 2021, 1 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 22.0 ppb (21) 0.1 ppb (2) N/A 2.3 μg/m3 (10) 21.0
 
July 31, 2021, midnight N/A N/A N/A 1.0 ppb (1) N/A N/A 22.0 ppb (21) 0.1 ppb (2) N/A 2.3 μg/m3 (10) 21.0
 
July 30, 2021, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 22.0 ppb (21) 0.1 ppb (2) N/A 2.5 μg/m3 (11) 21.0
 
July 30, 2021, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 21.0 ppb (20) 0.09 ppb (2) N/A 2.5 μg/m3 (11) 20.0
 
July 30, 2021, 9 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 21.0 ppb (20) 0.1 ppb (2) N/A 2.1 μg/m3 (9) 20.0
 
July 30, 2021, 8 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 23.0 ppb (22) 0.09 ppb (2) N/A 2.4 μg/m3 (10) 22.0
 
July 30, 2021, 7 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 22.0 ppb (21) 0.09 ppb (2) N/A 2.1 μg/m3 (9) 21.0
 
July 30, 2021, 6 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 21.0 ppb (20) 0.11 ppb (2) N/A 1.6 μg/m3 (7) 20.0
 
July 30, 2021, 5 p.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 21.0 ppb (20) 0.1 ppb (2) N/A 1.6 μg/m3 (7) 20.0
 
July 30, 2021, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 23.0 ppb (22) 0.12 ppb (2) N/A 1.4 μg/m3 (6) 22.0
 
July 30, 2021, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 28.0 ppb (26) 0.15 ppb (2) N/A 1.3 μg/m3 (6) 26.0
 
July 30, 2021, 2 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 27.0 ppb (25) 0.14 ppb (2) N/A 1.6 μg/m3 (7) 25.0
 
July 30, 2021, 1 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 25.0 ppb (24) 0.13 ppb (2) N/A 1.8 μg/m3 (8) 24.0
 
July 30, 2021, noon N/A N/A N/A 1.0 ppb (1) N/A N/A 24.0 ppb (23) 0.15 ppb (2) N/A 3.9 μg/m3 (17) 23.0
 
July 30, 2021, 11 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 20.0 ppb (19) 0.17 ppb (3) N/A 5.4 μg/m3 (23) 23.0
 
July 30, 2021, 10 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 14.0 ppb (13) 0.17 ppb (3) N/A 5.9 μg/m3 (25) 25.0
 
July 30, 2021, 9 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 10.0 ppb (10) 0.16 ppb (3) N/A 5.4 μg/m3 (23) 23.0
 
July 30, 2021, 8 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 8.0 ppb (8) 0.16 ppb (3) N/A 5.4 μg/m3 (23) 23.0
 
July 30, 2021, 7 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 11.0 ppb (11) 0.16 ppb (3) N/A 6.6 μg/m3 (28) 28.0
 
July 30, 2021, 6 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 9.0 ppb (9) 0.17 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
July 30, 2021, 5 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 10.0 ppb (10) 0.16 ppb (3) N/A 8.6 μg/m3 (36) 36.0
 
July 30, 2021, 4 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 11.0 ppb (11) 0.16 ppb (3) N/A 7.3 μg/m3 (31) 31.0
 
July 30, 2021, 3 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 10.0 ppb (10) 0.17 ppb (3) N/A 7.2 μg/m3 (31) 31.0
 
July 30, 2021, 2 a.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 9.0 ppb (9) 0.18 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
July 30, 2021, 1 a.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 9.0 ppb (9) 0.18 ppb (3) N/A 7.2 μg/m3 (31) 31.0
 
July 30, 2021, midnight N/A N/A N/A 5.0 ppb (5) N/A N/A 11.0 ppb (11) 0.17 ppb (3) N/A 8.7 μg/m3 (37) 37.0
 
July 29, 2021, 11 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 17.0 ppb (16) 0.17 ppb (3) N/A 9.7 μg/m3 (41) 41.0
 
July 29, 2021, 10 p.m. N/A N/A N/A 7.0 ppb (7) N/A N/A 18.0 ppb (17) 0.18 ppb (3) N/A 7.3 μg/m3 (31) 31.0
 
July 29, 2021, 9 p.m. N/A N/A N/A 9.0 ppb (9) N/A N/A 16.0 ppb (15) 0.18 ppb (3) N/A 6.2 μg/m3 (26) 26.0
 
July 29, 2021, 8 p.m. N/A N/A N/A 9.0 ppb (9) N/A N/A 16.0 ppb (15) 0.18 ppb (3) N/A 4.9 μg/m3 (21) 21.0
 
July 29, 2021, 7 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 19.0 ppb (18) 0.17 ppb (3) N/A 4.9 μg/m3 (21) 21.0
 
July 29, 2021, 6 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 22.0 ppb (21) 0.15 ppb (2) N/A 4.6 μg/m3 (20) 21.0
 
July 29, 2021, 5 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 18.0 ppb (17) 0.15 ppb (2) N/A 5.3 μg/m3 (23) 23.0
 
July 29, 2021, 4 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 16.0 ppb (15) 0.16 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
July 29, 2021, 3 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 18.0 ppb (17) 0.17 ppb (3) N/A 5.9 μg/m3 (25) 25.0
 
July 29, 2021, 2 p.m. N/A N/A N/A 8.0 ppb (8) N/A N/A 18.0 ppb (17) 0.16 ppb (3) N/A 5.4 μg/m3 (23) 23.0
 
July 29, 2021, 1 p.m. N/A N/A N/A 8.0 ppb (8) N/A N/A 17.0 ppb (16) 0.17 ppb (3) N/A 5.4 μg/m3 (23) 23.0
 
July 29, 2021, noon N/A N/A N/A 11.0 ppb (11) N/A N/A 11.0 ppb (11) 0.19 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
July 29, 2021, 11 a.m. N/A N/A N/A 12.0 ppb (12) N/A N/A 8.0 ppb (8) 0.2 ppb (3) N/A 5.3 μg/m3 (23) 23.0
 
July 29, 2021, 10 a.m. N/A N/A N/A 12.0 ppb (12) N/A N/A 6.0 ppb (6) 0.2 ppb (3) N/A 5.5 μg/m3 (23) 23.0
 
July 29, 2021, 9 a.m. N/A N/A N/A 17.0 ppb (17) N/A N/A 2.0 ppb (2) 0.19 ppb (3) N/A 5.9 μg/m3 (25) 25.0
 
July 29, 2021, 8 a.m. N/A N/A N/A 12.0 ppb (12) N/A N/A 6.0 ppb (6) 0.19 ppb (3) N/A 6.9 μg/m3 (29) 29.0
 
July 29, 2021, 7 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 14.0 ppb (13) 0.19 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
July 29, 2021, 6 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 17.0 ppb (16) 0.19 ppb (3) N/A 7.7 μg/m3 (33) 33.0
 
July 29, 2021, 5 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 18.0 ppb (17) 0.2 ppb (3) N/A 8.2 μg/m3 (35) 35.0
 
July 29, 2021, 4 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 17.0 ppb (16) 0.23 ppb (3) N/A 7.6 μg/m3 (32) 32.0
 
July 29, 2021, 3 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 22.0 ppb (21) 0.2 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
July 29, 2021, 2 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 24.0 ppb (23) 0.2 ppb (3) N/A 7.9 μg/m3 (33) 33.0
 
July 29, 2021, 1 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 26.0 ppb (25) 0.18 ppb (3) N/A 9.2 μg/m3 (39) 39.0
 
July 29, 2021, midnight N/A N/A N/A 3.0 ppb (3) N/A N/A 23.0 ppb (22) 0.15 ppb (2) N/A 4.8 μg/m3 (20) 22.0
 
July 28, 2021, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 26.0 ppb (25) 0.13 ppb (2) N/A 4.2 μg/m3 (18) 25.0
 
July 28, 2021, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 29.0 ppb (27) 0.12 ppb (2) N/A 4.1 μg/m3 (18) 27.0
 
July 28, 2021, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 31.0 ppb (29) 0.12 ppb (2) N/A 4.0 μg/m3 (17) 29.0
 
July 28, 2021, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 32.0 ppb (30) 0.12 ppb (2) N/A 4.2 μg/m3 (18) 30.0
 
July 28, 2021, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 31.0 ppb (29) 0.12 ppb (2) N/A 3.1 μg/m3 (13) 29.0
 
July 28, 2021, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 30.0 ppb (28) 0.12 ppb (2) N/A 3.2 μg/m3 (14) 28.0
 
July 28, 2021, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 29.0 ppb (27) 0.12 ppb (2) N/A 3.4 μg/m3 (15) 27.0
 
July 28, 2021, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 28.0 ppb (26) 0.12 ppb (2) N/A 3.2 μg/m3 (14) 26.0
 
July 28, 2021, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 27.0 ppb (25) 0.12 ppb (2) N/A 2.8 μg/m3 (12) 25.0
 
July 28, 2021, 2 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 24.0 ppb (23) 0.11 ppb (2) N/A 2.6 μg/m3 (11) 23.0
 
July 28, 2021, 1 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 18.0 ppb (17) 0.14 ppb (2) N/A 2.8 μg/m3 (12) 17.0
 
July 28, 2021, noon N/A N/A N/A 3.0 ppb (3) N/A N/A 14.0 ppb (13) 0.16 ppb (3) N/A 2.6 μg/m3 (11) 13.0
 
July 28, 2021, 11 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 12.0 ppb (12) 0.16 ppb (3) N/A 2.9 μg/m3 (13) 13.0
 
July 28, 2021, 10 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 11.0 ppb (11) 0.14 ppb (2) N/A 2.9 μg/m3 (13) 13.0
 
July 28, 2021, 9 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 10.0 ppb (10) 0.14 ppb (2) N/A 2.8 μg/m3 (12) 12.0
 
July 28, 2021, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 8.0 ppb (8) 0.14 ppb (2) N/A 3.0 μg/m3 (13) 13.0
 
July 28, 2021, 7 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 4.0 ppb (4) 0.19 ppb (3) N/A 3.9 μg/m3 (17) 17.0
 
July 28, 2021, 6 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 3.0 ppb (3) 0.2 ppb (3) N/A 4.1 μg/m3 (18) 18.0
 
July 28, 2021, 5 a.m. N/A N/A N/A 10.0 ppb (10) N/A N/A 2.0 ppb (2) 0.22 ppb (3) N/A 4.1 μg/m3 (18) 18.0
 
July 28, 2021, 4 a.m. N/A N/A N/A 13.0 ppb (13) N/A N/A 3.0 ppb (3) 0.25 ppb (3) N/A 5.7 μg/m3 (24) 24.0
 
July 28, 2021, 3 a.m. N/A N/A N/A 10.0 ppb (10) N/A N/A 7.0 ppb (7) 0.24 ppb (3) N/A 5.3 μg/m3 (23) 23.0
 
July 28, 2021, 2 a.m. N/A N/A N/A 11.0 ppb (11) N/A N/A 8.0 ppb (8) 0.22 ppb (3) N/A 4.7 μg/m3 (20) 20.0
 
July 28, 2021, 1 a.m. N/A N/A N/A 10.0 ppb (10) N/A N/A 11.0 ppb (11) 0.2 ppb (3) N/A 4.1 μg/m3 (18) 18.0
 
July 28, 2021, midnight N/A N/A N/A 8.0 ppb (8) N/A N/A 12.0 ppb (12) 0.2 ppb (3) N/A 3.9 μg/m3 (17) 17.0
 
July 27, 2021, 11 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 16.0 ppb (15) 0.2 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
July 27, 2021, 10 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 20.0 ppb (19) 0.19 ppb (3) N/A 4.4 μg/m3 (19) 19.0
 
July 27, 2021, 9 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 21.0 ppb (20) 0.2 ppb (3) N/A 4.8 μg/m3 (20) 20.0
 
July 27, 2021, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 23.0 ppb (22) 0.17 ppb (3) N/A 4.1 μg/m3 (18) 22.0
 
July 27, 2021, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 23.0 ppb (22) 0.19 ppb (3) N/A 5.7 μg/m3 (24) 24.0
 
July 27, 2021, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 21.0 ppb (20) 0.21 ppb (3) N/A 6.4 μg/m3 (27) 27.0
 
July 27, 2021, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 22.0 ppb (21) 0.19 ppb (3) N/A 5.2 μg/m3 (22) 22.0
 
July 27, 2021, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 23.0 ppb (22) 0.2 ppb (3) N/A 6.5 μg/m3 (28) 28.0
 
July 27, 2021, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 20.0 ppb (19) 0.22 ppb (3) N/A 7.7 μg/m3 (33) 33.0
 
July 27, 2021, 2 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 17.0 ppb (16) 0.23 ppb (3) N/A 8.9 μg/m3 (38) 38.0
 
July 27, 2021, 1 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 17.0 ppb (16) 0.24 ppb (3) N/A 8.4 μg/m3 (36) 36.0
 
July 27, 2021, noon N/A N/A N/A 4.0 ppb (4) N/A N/A 14.0 ppb (13) 0.28 ppb (4) N/A 11.2 μg/m3 (47) 47.0
 
July 27, 2021, 11 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 12.0 ppb (12) 0.29 ppb (4) N/A 14.3 μg/m3 (56) 56.0
 
July 27, 2021, 10 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 11.0 ppb (11) 0.31 ppb (4) N/A 17.3 μg/m3 (62) 62.0
 
July 27, 2021, 9 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 10.0 ppb (10) 0.32 ppb (4) N/A 18.4 μg/m3 (65) 65.0
 
July 27, 2021, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 13.0 ppb (13) 0.3 ppb (4) N/A 19.4 μg/m3 (67) 67.0
 
July 27, 2021, 7 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 17.0 ppb (16) 0.29 ppb (4) N/A 18.9 μg/m3 (66) 66.0
 
July 27, 2021, 6 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 17.0 ppb (16) 0.3 ppb (4) N/A 19.7 μg/m3 (67) 67.0
 
July 27, 2021, 5 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 19.0 ppb (18) 0.32 ppb (4) N/A 19.2 μg/m3 (66) 66.0
 
July 27, 2021, 4 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 22.0 ppb (21) 0.3 ppb (4) N/A 17.8 μg/m3 (63) 63.0
 
July 27, 2021, 3 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 28.0 ppb (26) 0.31 ppb (4) N/A 18.4 μg/m3 (65) 65.0
 
July 27, 2021, 2 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 27.0 ppb (25) 0.36 ppb (5) N/A 20.7 μg/m3 (70) 70.0
 
July 27, 2021, 1 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 26.0 ppb (25) 0.45 ppb (6) N/A 27.0 μg/m3 (83) 83.0
 
July 27, 2021, midnight N/A N/A N/A 2.0 ppb (2) N/A N/A 31.0 ppb (29) 0.45 ppb (6) N/A 26.3 μg/m3 (81) 81.0
 
July 26, 2021, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 33.0 ppb (31) 0.44 ppb (5) N/A 27.5 μg/m3 (84) 84.0
 
July 26, 2021, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 33.0 ppb (31) 0.42 ppb (5) N/A 25.3 μg/m3 (79) 79.0
 
July 26, 2021, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 34.0 ppb (32) 0.42 ppb (5) N/A 26.3 μg/m3 (81) 81.0
 
July 26, 2021, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 35.0 ppb (33) 0.43 ppb (5) N/A 30.3 μg/m3 (90) 90.0
 
July 26, 2021, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 37.0 ppb (35) 0.45 ppb (6) N/A 36.5 μg/m3 (104) 104.0
 
July 26, 2021, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 37.0 ppb (35) 0.51 ppb (6) N/A 50.7 μg/m3 (139) 139.0
 
July 26, 2021, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 38.0 ppb (36) 0.59 ppb (7) N/A 73.7 μg/m3 (161) 161.0
 
July 26, 2021, 4 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 38.0 ppb (36) 0.58 ppb (7) N/A 68.6 μg/m3 (158) 158.0
 
July 26, 2021, 3 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 29.0 ppb (27) 0.42 ppb (5) N/A 29.3 μg/m3 (88) 88.0
 
July 26, 2021, 2 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 25.0 ppb (24) 0.36 ppb (5) N/A 20.4 μg/m3 (69) 69.0
 
July 26, 2021, 1 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 25.0 ppb (24) 0.35 ppb (4) N/A 20.5 μg/m3 (69) 69.0
 
July 26, 2021, noon N/A N/A N/A 3.0 ppb (3) N/A N/A 25.0 ppb (24) 0.34 ppb (4) N/A 17.7 μg/m3 (63) 63.0
 
July 26, 2021, 11 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 24.0 ppb (23) 0.34 ppb (4) N/A 16.1 μg/m3 (60) 60.0
 
July 26, 2021, 10 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 24.0 ppb (23) 0.33 ppb (4) N/A 14.4 μg/m3 (56) 56.0
 
July 26, 2021, 9 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 24.0 ppb (23) 0.32 ppb (4) N/A 12.9 μg/m3 (53) 53.0
 
July 26, 2021, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 25.0 ppb (24) 0.32 ppb (4) N/A 12.1 μg/m3 (51) 51.0
 
July 26, 2021, 7 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 27.0 ppb (25) 0.33 ppb (4) N/A 12.4 μg/m3 (52) 52.0
 
July 26, 2021, 6 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 26.0 ppb (25) 0.33 ppb (4) N/A 16.2 μg/m3 (60) 60.0
 
July 26, 2021, 5 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 30.0 ppb (28) 0.33 ppb (4) N/A 19.8 μg/m3 (68) 68.0
 
July 26, 2021, 4 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 37.0 ppb (35) 0.33 ppb (4) N/A 24.3 μg/m3 (77) 77.0
 
July 26, 2021, 3 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 36.0 ppb (34) 0.3 ppb (4) N/A 22.4 μg/m3 (73) 73.0
 
July 26, 2021, 2 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 37.0 ppb (35) 0.27 ppb (4) N/A 19.4 μg/m3 (67) 67.0
 
July 26, 2021, 1 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 37.0 ppb (35) 0.25 ppb (3) N/A 15.7 μg/m3 (59) 59.0
 
July 26, 2021, midnight N/A N/A N/A 2.0 ppb (2) N/A N/A 41.0 ppb (38) 0.23 ppb (3) N/A 14.0 μg/m3 (55) 55.0
 
July 25, 2021, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) 0.22 ppb (3) N/A 14.4 μg/m3 (56) 56.0
 
July 25, 2021, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 46.0 ppb (43) 0.22 ppb (3) N/A 14.1 μg/m3 (56) 56.0
 
July 25, 2021, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 47.0 ppb (44) 0.19 ppb (3) N/A 9.1 μg/m3 (38) 44.0
 
July 25, 2021, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 45.0 ppb (42) 0.19 ppb (3) N/A 9.5 μg/m3 (40) 42.0
 
July 25, 2021, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 45.0 ppb (42) 0.19 ppb (3) N/A 9.6 μg/m3 (40) 42.0
 
July 25, 2021, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 43.0 ppb (40) 0.2 ppb (3) N/A 11.1 μg/m3 (47) 47.0
 
July 25, 2021, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 41.0 ppb (38) 0.19 ppb (3) N/A 9.3 μg/m3 (39) 39.0
 
July 25, 2021, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 38.0 ppb (36) 0.18 ppb (3) N/A 5.8 μg/m3 (25) 36.0
 
July 25, 2021, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 37.0 ppb (35) 0.18 ppb (3) N/A 5.0 μg/m3 (21) 35.0
 
July 25, 2021, 2 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 35.0 ppb (33) 0.19 ppb (3) N/A 5.1 μg/m3 (22) 33.0
 
July 25, 2021, 1 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 32.0 ppb (30) 0.2 ppb (3) N/A 6.9 μg/m3 (29) 30.0
 
July 25, 2021, noon N/A N/A N/A 2.0 ppb (2) N/A N/A 32.0 ppb (30) 0.2 ppb (3) N/A 9.4 μg/m3 (40) 40.0
 
July 25, 2021, 11 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 30.0 ppb (28) 0.2 ppb (3) N/A 9.7 μg/m3 (41) 41.0
 
July 25, 2021, 10 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 30.0 ppb (28) 0.19 ppb (3) N/A 8.9 μg/m3 (38) 38.0
 
July 25, 2021, 9 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 30.0 ppb (28) 0.18 ppb (3) N/A 8.4 μg/m3 (36) 36.0
 
July 25, 2021, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 28.0 ppb (26) 0.17 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
July 25, 2021, 7 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 23.0 ppb (22) 0.16 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
July 25, 2021, 6 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 28.0 ppb (26) 0.16 ppb (3) N/A 8.7 μg/m3 (37) 37.0
 
July 25, 2021, 5 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 30.0 ppb (28) 0.16 ppb (3) N/A 7.6 μg/m3 (32) 32.0
 
July 25, 2021, 4 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 29.0 ppb (27) 0.16 ppb (3) N/A 5.7 μg/m3 (24) 27.0
 
July 25, 2021, 3 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 26.0 ppb (25) 0.17 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
July 25, 2021, 2 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 31.0 ppb (29) 0.16 ppb (3) N/A 6.0 μg/m3 (25) 29.0