AQSQID: CC0050126

Site Name: Sainte-Anne-De-Bellevue

Location: Sainte-Anne-de-Bellevue (Chemin Sainte-Marie), N/A

Reporting: True, Located: True

Current AQI: 16.0

Sainte-Anne-de-Bellevue (Chemin Sainte-Marie) N/A, CA: 45.426509, -73.928944

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 20, 2019, 3 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 18.0 ppb (14) N/A N/A 3.8 μg/m3 (16) 16.0
 
May 20, 2019, 2 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A 3.8 μg/m3 (16) 16.0
 
May 20, 2019, 1 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A 4.4 μg/m3 (18) 18.0
 
May 20, 2019, midnight N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 4.7 μg/m3 (20) 20.0
 
May 19, 2019, 11 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 4.8 μg/m3 (20) 20.0
 
May 19, 2019, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 3.7 μg/m3 (15) 22.0
 
May 19, 2019, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 33.0 ppb (25) N/A N/A 3.5 μg/m3 (15) 25.0
 
May 19, 2019, 8 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 2.9 μg/m3 (12) 28.0
 
May 19, 2019, 7 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 2.0 μg/m3 (8) 28.0
 
May 19, 2019, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 1.9 μg/m3 (8) 25.0
 
May 19, 2019, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 1.8 μg/m3 (8) 23.0
 
May 19, 2019, 4 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 2.8 μg/m3 (12) 21.0
 
May 19, 2019, 3 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 4.0 μg/m3 (17) 18.0
 
May 19, 2019, 2 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 4.8 μg/m3 (20) 20.0
 
May 19, 2019, 1 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 5.0 μg/m3 (21) 21.0
 
May 19, 2019, noon N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 5.4 μg/m3 (23) 23.0
 
May 19, 2019, 11 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 18.0 ppb (14) N/A N/A 4.5 μg/m3 (19) 19.0
 
May 19, 2019, 10 a.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 18.0 ppb (14) N/A N/A 3.6 μg/m3 (15) 15.0
 
May 19, 2019, 9 a.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 18.0 ppb (14) N/A N/A 3.8 μg/m3 (16) 16.0
 
May 19, 2019, 8 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 2.7 μg/m3 (11) 18.0
 
May 19, 2019, 7 a.m. N/A N/A N/A 10.0 ppb (9) N/A 0.0 ppb (0) 9.0 ppb (7) N/A N/A 5.5 μg/m3 (23) 23.0
 
May 19, 2019, 6 a.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A 6.5 μg/m3 (27) 27.0
 
May 19, 2019, 5 a.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 11.0 ppb (8) N/A N/A 7.0 μg/m3 (29) 29.0
 
May 19, 2019, 4 a.m. N/A N/A N/A 9.0 ppb (8) N/A 0.0 ppb (0) 13.0 ppb (10) N/A N/A 4.8 μg/m3 (20) 20.0
 
May 19, 2019, 3 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 15.0 ppb (12) N/A N/A 4.0 μg/m3 (17) 17.0
 
May 19, 2019, 2 a.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 18.0 ppb (14) N/A N/A 4.5 μg/m3 (19) 19.0
 
May 19, 2019, 1 a.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 1.8 μg/m3 (8) 15.0
 
May 19, 2019, midnight N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 0.7 μg/m3 (3) 21.0
 
May 18, 2019, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 0.8 μg/m3 (3) 22.0
 
May 18, 2019, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 0.5 μg/m3 (2) 23.0
 
May 18, 2019, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 0.5 μg/m3 (2) 23.0
 
May 18, 2019, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 0.5 μg/m3 (2) 24.0
 
May 18, 2019, 7 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 0.4 μg/m3 (2) 25.0
 
May 18, 2019, 6 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 0.3 μg/m3 (1) 25.0
 
May 18, 2019, 5 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 0.3 μg/m3 (1) 25.0
 
May 18, 2019, 4 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 0.2 μg/m3 (1) 23.0
 
May 18, 2019, 3 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 0.2 μg/m3 (1) 20.0
 
May 18, 2019, 2 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 0.2 μg/m3 (1) 20.0
 
May 18, 2019, 1 p.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 0.2 μg/m3 (1) 18.0
 
May 18, 2019, noon N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 0.1 μg/m3 (0) 18.0
 
May 18, 2019, 11 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 0.1 μg/m3 (0) 18.0
 
May 18, 2019, 10 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A 0.2 μg/m3 (1) 16.0
 
May 18, 2019, 9 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A 0.3 μg/m3 (1) 16.0
 
May 18, 2019, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A 0.3 μg/m3 (1) 16.0
 
May 18, 2019, 7 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 0.4 μg/m3 (2) 19.0
 
May 18, 2019, 6 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 0.5 μg/m3 (2) 19.0
 
May 18, 2019, 5 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 0.6 μg/m3 (2) 20.0
 
May 18, 2019, 4 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 0.6 μg/m3 (2) 22.0
 
May 18, 2019, 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 0.5 μg/m3 (2) 22.0
 
May 18, 2019, 2 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 0.7 μg/m3 (3) 22.0
 
May 18, 2019, 1 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 0.7 μg/m3 (3) 22.0
 
May 18, 2019, midnight N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 0.7 μg/m3 (3) 22.0
 
May 17, 2019, 11 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 2.6 μg/m3 (11) 22.0
 
May 17, 2019, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 4.9 μg/m3 (20) 22.0
 
May 17, 2019, 9 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 6.7 μg/m3 (28) 28.0
 
May 17, 2019, 8 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 4.6 μg/m3 (19) 25.0
 
May 17, 2019, 7 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 4.8 μg/m3 (20) 25.0
 
May 17, 2019, 6 p.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 4.6 μg/m3 (19) 25.0
 
May 17, 2019, 5 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 2.7 μg/m3 (11) 28.0
 
May 17, 2019, 4 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 2.4 μg/m3 (10) 27.0
 
May 17, 2019, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 2.3 μg/m3 (10) 10.0
 
May 17, 2019, 2 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 2.7 μg/m3 (11) 25.0
 
May 17, 2019, 1 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 3.0 μg/m3 (12) 22.0
 
May 17, 2019, noon N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 3.1 μg/m3 (13) 25.0
 
May 17, 2019, 11 a.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 4.7 μg/m3 (20) 20.0
 
May 17, 2019, 10 a.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 6.1 μg/m3 (25) 25.0
 
May 17, 2019, 9 a.m. N/A N/A N/A 10.0 ppb (9) N/A 0.0 ppb (0) 13.0 ppb (10) N/A N/A 7.9 μg/m3 (33) 33.0
 
May 17, 2019, 8 a.m. N/A N/A N/A 9.0 ppb (8) N/A 0.0 ppb (0) 13.0 ppb (10) N/A N/A 8.7 μg/m3 (36) 36.0
 
May 17, 2019, 7 a.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 12.0 ppb (9) N/A N/A 5.1 μg/m3 (21) 21.0
 
May 17, 2019, 6 a.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 17.0 ppb (13) N/A N/A 4.9 μg/m3 (20) 20.0
 
May 17, 2019, 5 a.m. N/A N/A N/A 13.0 ppb (12) N/A 0.0 ppb (0) 13.0 ppb (10) N/A N/A 3.8 μg/m3 (16) 16.0
 
May 17, 2019, 4 a.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 1.8 μg/m3 (8) 15.0
 
May 17, 2019, 3 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 1.5 μg/m3 (6) 20.0
 
May 17, 2019, 2 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 1.7 μg/m3 (7) 18.0
 
May 17, 2019, 1 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 2.1 μg/m3 (9) 21.0
 
May 17, 2019, midnight N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 1.7 μg/m3 (7) 23.0
 
May 16, 2019, 11 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 1.1 μg/m3 (5) 27.0
 
May 16, 2019, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 1.0 μg/m3 (4) 28.0
 
May 16, 2019, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 1.0 μg/m3 (4) 28.0
 
May 16, 2019, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 1.1 μg/m3 (5) 28.0
 
May 16, 2019, 7 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 1.4 μg/m3 (6) 26.0
 
May 16, 2019, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 2.5 μg/m3 (10) 24.0
 
May 16, 2019, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 5.2 μg/m3 (22) 22.0
 
May 16, 2019, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 7.2 μg/m3 (30) 30.0
 
May 16, 2019, 3 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 6.1 μg/m3 (25) 25.0
 
May 16, 2019, 2 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A 5.3 μg/m3 (22) 22.0
 
May 16, 2019, 1 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) 23.0 ppb (18) N/A N/A 8.5 μg/m3 (35) 35.0
 
May 16, 2019, noon N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 6.5 μg/m3 (27) 27.0
 
May 16, 2019, 11 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 5.9 μg/m3 (25) 25.0
 
May 16, 2019, 10 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 4.8 μg/m3 (20) 20.0
 
May 16, 2019, 9 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 4.8 μg/m3 (20) 20.0
 
May 16, 2019, 8 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 3.8 μg/m3 (16) 20.0
 
May 16, 2019, 7 a.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 5.6 μg/m3 (23) 23.0
 
May 16, 2019, 6 a.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 6.3 μg/m3 (26) 26.0
 
May 16, 2019, 5 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 5.3 μg/m3 (22) 23.0
 
May 16, 2019, 4 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 4.8 μg/m3 (20) 25.0
 
May 16, 2019, 3 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 4.7 μg/m3 (20) 25.0
 
May 16, 2019, 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 6.8 μg/m3 (28) 28.0
 
May 16, 2019, 1 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 6.5 μg/m3 (27) 27.0
 
May 16, 2019, midnight N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 6.6 μg/m3 (28) 28.0
 
May 15, 2019, 11 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 4.8 μg/m3 (20) 24.0
 
May 15, 2019, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 3.7 μg/m3 (15) 27.0
 
May 15, 2019, 9 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 3.3 μg/m3 (14) 28.0
 
May 15, 2019, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 1.8 μg/m3 (8) 32.0
 
May 15, 2019, 7 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 2.1 μg/m3 (9) 30.0
 
May 15, 2019, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 2.7 μg/m3 (11) 28.0
 
May 15, 2019, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 3.2 μg/m3 (13) 28.0
 
May 15, 2019, 4 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 3.1 μg/m3 (13) 28.0
 
May 15, 2019, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 3.0 μg/m3 (12) 28.0
 
May 15, 2019, 2 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 2.8 μg/m3 (12) 28.0
 
May 15, 2019, 1 p.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 3.7 μg/m3 (15) 22.0
 
May 15, 2019, noon N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 3.1 μg/m3 (13) 20.0
 
May 15, 2019, 11 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 3.5 μg/m3 (15) 18.0
 
May 15, 2019, 10 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 3.9 μg/m3 (16) 18.0
 
May 15, 2019, 9 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 4.6 μg/m3 (19) 19.0
 
May 15, 2019, 8 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 4.7 μg/m3 (20) 20.0
 
May 15, 2019, 7 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 4.7 μg/m3 (20) 20.0
 
May 15, 2019, 6 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 4.5 μg/m3 (19) 19.0
 
May 15, 2019, 5 a.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 4.0 μg/m3 (17) 20.0
 
May 15, 2019, 4 a.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 3.5 μg/m3 (15) 22.0
 
May 15, 2019, 3 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 3.2 μg/m3 (13) 22.0
 
May 15, 2019, 2 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 2.6 μg/m3 (11) 23.0
 
May 15, 2019, 1 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 2.2 μg/m3 (9) 24.0
 
May 15, 2019, midnight N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 1.9 μg/m3 (8) 23.0
 
May 14, 2019, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 1.9 μg/m3 (8) 23.0
 
May 14, 2019, 10 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 1.9 μg/m3 (8) 23.0
 
May 14, 2019, 9 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 1.2 μg/m3 (5) 23.0
 
May 14, 2019, 8 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 1.6 μg/m3 (7) 24.0
 
May 14, 2019, 7 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 1.4 μg/m3 (6) 22.0
 
May 14, 2019, 6 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 1.6 μg/m3 (7) 23.0
 
May 14, 2019, 5 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 1.8 μg/m3 (8) 24.0
 
May 14, 2019, 4 p.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 2.0 μg/m3 (8) 22.0
 
May 14, 2019, 3 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 1.8 μg/m3 (8) 22.0
 
May 14, 2019, 2 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 0.9 μg/m3 (4) 24.0
 
May 14, 2019, 1 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 1.5 μg/m3 (6) 22.0
 
May 14, 2019, noon N/A N/A N/A 9.0 ppb (8) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 1.5 μg/m3 (6) 18.0
 
May 14, 2019, 11 a.m. N/A N/A N/A 10.0 ppb (9) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 1.1 μg/m3 (5) 18.0
 
May 14, 2019, 10 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 1.3 μg/m3 (5) 19.0
 
May 14, 2019, 9 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 1.0 μg/m3 (4) 17.0
 
May 14, 2019, 8 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 0.6 μg/m3 (2) 19.0
 
May 14, 2019, 7 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 1.1 μg/m3 (5) 18.0
 
May 14, 2019, 6 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 1.5 μg/m3 (6) 19.0
 
May 14, 2019, 5 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 1.3 μg/m3 (5) 20.0
 
May 14, 2019, 4 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 1.2 μg/m3 (5) 21.0
 
May 14, 2019, 3 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 2.5 μg/m3 (10) 19.0
 
May 14, 2019, 2 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 2.6 μg/m3 (11) 18.0
 
May 14, 2019, 1 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 2.1 μg/m3 (9) 22.0
 
May 14, 2019, midnight N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 2.1 μg/m3 (9) 22.0
 
May 13, 2019, 11 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 2.4 μg/m3 (10) 24.0
 
May 13, 2019, 10 p.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 2.5 μg/m3 (10) 25.0
 
May 13, 2019, 9 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 1.9 μg/m3 (8) 26.0
 
May 13, 2019, 8 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 2.1 μg/m3 (9) 28.0
 
May 13, 2019, 7 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 36.0 ppb (28) N/A N/A 2.5 μg/m3 (10) 28.0
 
May 13, 2019, 6 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (1) 33.0 ppb (25) N/A N/A 2.8 μg/m3 (12) 25.0
 
May 13, 2019, 5 p.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 3.2 μg/m3 (13) 22.0
 
May 13, 2019, 4 p.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 2.9 μg/m3 (12) 22.0
 
May 13, 2019, 3 p.m. N/A N/A N/A 11.0 ppb (10) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 3.6 μg/m3 (15) 15.0
 
May 13, 2019, 2 p.m. N/A N/A N/A 11.0 ppb (10) N/A 0.0 ppb (0) 18.0 ppb (14) N/A N/A 3.3 μg/m3 (14) 14.0
 
May 13, 2019, 1 p.m. N/A N/A N/A 9.0 ppb (8) N/A 1.0 ppb (1) 21.0 ppb (16) N/A N/A 3.0 μg/m3 (12) 16.0
 
May 13, 2019, noon N/A N/A N/A 8.0 ppb (7) N/A 3.0 ppb (4) 21.0 ppb (16) N/A N/A 4.3 μg/m3 (18) 18.0
 
May 13, 2019, 11 a.m. N/A N/A N/A 7.0 ppb (6) N/A 1.0 ppb (1) 22.0 ppb (17) N/A N/A 4.4 μg/m3 (18) 18.0
 
May 13, 2019, 10 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (1) 25.0 ppb (19) N/A N/A 3.7 μg/m3 (15) 19.0
 
May 13, 2019, 9 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 28.0 ppb (22) N/A N/A 2.9 μg/m3 (12) 22.0
 
May 13, 2019, 8 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 30.0 ppb (23) N/A N/A 2.7 μg/m3 (11) 23.0
 
May 13, 2019, 7 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 32.0 ppb (25) N/A N/A 3.0 μg/m3 (12) 25.0
 
May 13, 2019, 6 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 36.0 ppb (28) N/A N/A 1.7 μg/m3 (7) 28.0
 
May 13, 2019, 5 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 1.9 μg/m3 (8) 29.0
 
May 13, 2019, 4 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 2.3 μg/m3 (10) 28.0