AQSQID: CC0050103

Site Name: Saint-Jean-Baptiste

Location: Montréal (Blvd Saint-Jean-Baptiste), N/A

Reporting: True, Located: True

Current AQI: 42.0

Montréal (Blvd Saint-Jean-Baptiste) N/A, CA: 45.641026, -73.499682

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 20, 2019, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 46.0 ppb (35) N/A N/A 10.2 μg/m3 (42) 42.0
 
July 20, 2019, 3 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 44.0 ppb (34) N/A N/A 9.8 μg/m3 (41) 41.0
 
July 20, 2019, 2 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 9.3 μg/m3 (39) 39.0
 
July 20, 2019, 1 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 9.4 μg/m3 (39) 39.0
 
July 20, 2019, noon N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 10.1 μg/m3 (42) 42.0
 
July 20, 2019, 11 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 10.6 μg/m3 (44) 44.0
 
July 20, 2019, 10 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 10.7 μg/m3 (45) 45.0
 
July 20, 2019, 9 a.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 11.2 μg/m3 (47) 47.0
 
July 20, 2019, 8 a.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 12.0 μg/m3 (50) 50.0
 
July 20, 2019, 7 a.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 12.6 μg/m3 (51) 51.0
 
July 20, 2019, 6 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 12.7 μg/m3 (51) 51.0
 
July 20, 2019, 5 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 12.7 μg/m3 (51) 51.0
 
July 20, 2019, 4 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 44.0 ppb (34) N/A N/A 13.0 μg/m3 (52) 52.0
 
July 20, 2019, 3 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 44.0 ppb (34) N/A N/A 12.3 μg/m3 (51) 51.0
 
July 20, 2019, 2 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 12.4 μg/m3 (51) 51.0
 
July 20, 2019, 1 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 43.0 ppb (33) N/A N/A 12.8 μg/m3 (52) 52.0
 
July 20, 2019, midnight N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 44.0 ppb (34) N/A N/A 13.6 μg/m3 (53) 53.0
 
July 19, 2019, 11 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 45.0 ppb (35) N/A N/A 14.5 μg/m3 (55) 55.0
 
July 19, 2019, 10 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 46.0 ppb (35) N/A N/A 14.7 μg/m3 (56) 56.0
 
July 19, 2019, 9 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 42.0 ppb (32) N/A N/A 13.2 μg/m3 (53) 53.0
 
July 19, 2019, 8 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 44.0 ppb (34) N/A N/A 10.9 μg/m3 (45) 45.0
 
July 19, 2019, 7 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 45.0 ppb (35) N/A N/A 11.5 μg/m3 (48) 48.0
 
July 19, 2019, 6 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 47.0 ppb (36) N/A N/A 13.5 μg/m3 (53) 53.0
 
July 19, 2019, 5 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 43.0 ppb (33) N/A N/A 12.6 μg/m3 (51) 51.0
 
July 19, 2019, 4 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 11.9 μg/m3 (50) 50.0
 
July 19, 2019, 3 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 12.4 μg/m3 (51) 51.0
 
July 19, 2019, 2 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 10.5 μg/m3 (44) 44.0
 
July 19, 2019, 1 p.m. N/A N/A N/A 10.0 ppb (9) N/A 0.0 ppb (0) 17.0 ppb (13) N/A N/A 9.8 μg/m3 (41) 41.0
 
July 19, 2019, noon N/A N/A N/A 18.0 ppb (17) N/A 0.0 ppb (0) 5.0 ppb (4) N/A N/A 15.3 μg/m3 (57) 57.0
 
July 19, 2019, 11 a.m. N/A N/A N/A 16.0 ppb (15) N/A 0.0 ppb (0) 2.0 ppb (2) N/A N/A 13.6 μg/m3 (53) 53.0
 
July 19, 2019, 10 a.m. N/A N/A N/A 15.0 ppb (14) N/A 0.0 ppb (0) 2.0 ppb (2) N/A N/A 12.6 μg/m3 (51) 51.0
 
July 19, 2019, 9 a.m. N/A N/A N/A 17.0 ppb (16) N/A 0.0 ppb (0) 2.0 ppb (2) N/A N/A 13.1 μg/m3 (52) 52.0
 
July 19, 2019, 8 a.m. N/A N/A N/A 11.0 ppb (10) N/A 0.0 ppb (0) 9.0 ppb (7) N/A N/A 11.2 μg/m3 (47) 47.0
 
July 19, 2019, 7 a.m. N/A N/A N/A 11.0 ppb (10) N/A 0.0 ppb (0) 11.0 ppb (8) N/A N/A 10.3 μg/m3 (43) 43.0
 
July 19, 2019, 6 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A 5.6 μg/m3 (23) 23.0
 
July 19, 2019, 5 a.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 4.5 μg/m3 (19) 19.0
 
July 19, 2019, 4 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 3.5 μg/m3 (15) 21.0
 
July 19, 2019, 3 a.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 3.6 μg/m3 (15) 22.0
 
July 19, 2019, 2 a.m. N/A N/A N/A 11.0 ppb (10) N/A 1.0 ppb (1) 25.0 ppb (19) N/A N/A 4.0 μg/m3 (17) 19.0
 
July 19, 2019, 1 a.m. N/A N/A N/A 10.0 ppb (9) N/A 1.0 ppb (1) 29.0 ppb (22) N/A N/A 5.0 μg/m3 (21) 22.0
 
July 19, 2019, midnight N/A N/A N/A 10.0 ppb (9) N/A 1.0 ppb (1) 33.0 ppb (25) N/A N/A 4.8 μg/m3 (20) 25.0
 
July 18, 2019, 11 p.m. N/A N/A N/A 5.0 ppb (5) N/A 7.0 ppb (10) 40.0 ppb (31) N/A N/A 2.7 μg/m3 (11) 31.0
 
July 18, 2019, 10 p.m. N/A N/A N/A 7.0 ppb (6) N/A 4.0 ppb (6) 40.0 ppb (31) N/A N/A 1.3 μg/m3 (5) 31.0
 
July 18, 2019, 9 p.m. N/A N/A N/A 4.0 ppb (4) N/A 2.0 ppb (3) 43.0 ppb (33) N/A N/A 1.2 μg/m3 (5) 33.0
 
July 18, 2019, 8 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 42.0 ppb (32) N/A N/A 0.0 μg/m3 (0) 32.0
 
July 18, 2019, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 40.0 ppb (31) N/A N/A 0.0 μg/m3 (0) 31.0
 
July 18, 2019, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 0.0 μg/m3 (0) 29.0
 
July 18, 2019, 5 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 0.0 μg/m3 (0) 28.0
 
July 18, 2019, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A 0.8 μg/m3 (3) 3.0
 
July 18, 2019, 3 p.m. N/A N/A N/A 2.0 ppb (2) N/A 2.0 ppb (3) N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
July 18, 2019, 2 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A 0.5 μg/m3 (2) 2.0
 
July 18, 2019, 1 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 0.5 μg/m3 (2) 2.0
 
July 18, 2019, noon N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A 0.3 μg/m3 (1) 2.0
 
July 18, 2019, 11 a.m. N/A N/A N/A 4.0 ppb (4) N/A 6.0 ppb (9) N/A N/A N/A 2.6 μg/m3 (11) 11.0
 
July 18, 2019, 10 a.m. N/A N/A N/A 7.0 ppb (6) N/A 2.0 ppb (3) N/A N/A N/A 1.7 μg/m3 (7) 7.0
 
July 18, 2019, 9 a.m. N/A N/A N/A 6.0 ppb (6) N/A 10.0 ppb (14) N/A N/A N/A 7.6 μg/m3 (32) 32.0
 
July 18, 2019, 8 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A 1.1 μg/m3 (5) 6.0
 
July 18, 2019, 7 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A 1.6 μg/m3 (7) 7.0
 
July 18, 2019, 6 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A N/A 3.7 μg/m3 (15) 15.0
 
July 18, 2019, 5 a.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A 4.2 μg/m3 (18) 18.0
 
July 18, 2019, 4 a.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A 4.1 μg/m3 (17) 17.0
 
July 18, 2019, 3 a.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A 3.1 μg/m3 (13) 13.0
 
July 18, 2019, 2 a.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A N/A N/A 2.4 μg/m3 (10) 10.0
 
July 18, 2019, 1 a.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A 3.1 μg/m3 (13) 13.0
 
July 18, 2019, midnight N/A N/A N/A 10.0 ppb (9) N/A 1.0 ppb (1) N/A N/A N/A 2.5 μg/m3 (10) 10.0
 
July 17, 2019, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A 2.0 ppb (3) N/A N/A N/A 3.3 μg/m3 (14) 14.0
 
July 17, 2019, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A N/A 4.4 μg/m3 (18) 18.0
 
July 17, 2019, 9 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A N/A 6.5 μg/m3 (27) 27.0
 
July 17, 2019, 8 p.m. N/A N/A N/A 5.0 ppb (5) N/A 4.0 ppb (6) N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
July 17, 2019, 7 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A N/A 10.7 μg/m3 (45) 45.0
 
July 17, 2019, 6 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A 12.2 μg/m3 (50) 50.0
 
July 17, 2019, 5 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A 12.1 μg/m3 (50) 50.0
 
July 17, 2019, 4 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A N/A N/A 11.2 μg/m3 (47) 47.0
 
July 17, 2019, 3 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A 10.8 μg/m3 (45) 45.0
 
July 17, 2019, 2 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 10.4 μg/m3 (43) 43.0
 
July 17, 2019, 1 p.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 9.3 μg/m3 (39) 39.0
 
July 17, 2019, noon N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 9.2 μg/m3 (38) 38.0
 
July 17, 2019, 11 a.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 8.9 μg/m3 (37) 37.0
 
July 17, 2019, 10 a.m. N/A N/A N/A 8.0 ppb (7) N/A 1.0 ppb (1) 23.0 ppb (18) N/A N/A 7.9 μg/m3 (33) 33.0
 
July 17, 2019, 9 a.m. N/A N/A N/A 8.0 ppb (7) N/A 1.0 ppb (1) 25.0 ppb (19) N/A N/A 7.8 μg/m3 (32) 32.0
 
July 17, 2019, 8 a.m. N/A N/A N/A 7.0 ppb (6) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 7.8 μg/m3 (32) 32.0
 
July 17, 2019, 7 a.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 7.7 μg/m3 (32) 32.0
 
July 17, 2019, 6 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 8.2 μg/m3 (34) 34.0
 
July 17, 2019, 5 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) 36.0 ppb (28) N/A N/A 9.8 μg/m3 (41) 41.0
 
July 17, 2019, 4 a.m. N/A N/A N/A 7.0 ppb (6) N/A 1.0 ppb (1) 36.0 ppb (28) N/A N/A 11.9 μg/m3 (50) 50.0
 
July 17, 2019, 3 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) 41.0 ppb (32) N/A N/A 12.9 μg/m3 (52) 52.0
 
July 17, 2019, 2 a.m. N/A N/A N/A 7.0 ppb (6) N/A 1.0 ppb (1) 41.0 ppb (32) N/A N/A 16.8 μg/m3 (60) 60.0
 
July 17, 2019, 1 a.m. N/A N/A N/A 8.0 ppb (7) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 16.0 μg/m3 (59) 59.0
 
July 17, 2019, midnight N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) 41.0 ppb (32) N/A N/A 13.2 μg/m3 (53) 53.0
 
July 16, 2019, 11 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (1) 42.0 ppb (32) N/A N/A 11.8 μg/m3 (49) 49.0
 
July 16, 2019, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (1) 43.0 ppb (33) N/A N/A 11.0 μg/m3 (46) 46.0
 
July 16, 2019, 9 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) 40.0 ppb (31) N/A N/A 10.4 μg/m3 (43) 43.0
 
July 16, 2019, 8 p.m. N/A N/A N/A 11.0 ppb (10) N/A 1.0 ppb (1) 26.0 ppb (20) N/A N/A 9.6 μg/m3 (40) 40.0
 
July 16, 2019, 7 p.m. N/A N/A N/A 7.0 ppb (6) N/A 2.0 ppb (3) 28.0 ppb (22) N/A N/A 9.5 μg/m3 (40) 40.0
 
July 16, 2019, 6 p.m. N/A N/A N/A 9.0 ppb (8) N/A 2.0 ppb (3) 24.0 ppb (18) N/A N/A 9.9 μg/m3 (41) 41.0
 
July 16, 2019, 5 p.m. N/A N/A N/A 11.0 ppb (10) N/A 5.0 ppb (7) 21.0 ppb (16) N/A N/A 10.5 μg/m3 (44) 44.0
 
July 16, 2019, 4 p.m. N/A N/A N/A 12.0 ppb (11) N/A 1.0 ppb (1) 20.0 ppb (15) N/A N/A 11.2 μg/m3 (47) 47.0
 
July 16, 2019, 3 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) 26.0 ppb (20) N/A N/A 9.9 μg/m3 (41) 41.0
 
July 16, 2019, 2 p.m. N/A N/A N/A 10.0 ppb (9) N/A 2.0 ppb (3) 20.0 ppb (15) N/A N/A 9.7 μg/m3 (40) 40.0
 
July 16, 2019, 1 p.m. N/A N/A N/A 18.0 ppb (17) N/A 2.0 ppb (3) 10.0 ppb (8) N/A N/A 10.8 μg/m3 (45) 45.0
 
July 16, 2019, noon N/A N/A N/A 14.0 ppb (13) N/A 2.0 ppb (3) 9.0 ppb (7) N/A N/A 9.7 μg/m3 (40) 40.0
 
July 16, 2019, 11 a.m. N/A N/A N/A 11.0 ppb (10) N/A 1.0 ppb (1) 10.0 ppb (8) N/A N/A 8.9 μg/m3 (37) 37.0
 
July 16, 2019, 10 a.m. N/A N/A N/A 9.0 ppb (8) N/A 2.0 ppb (3) 10.0 ppb (8) N/A N/A 8.2 μg/m3 (34) 34.0
 
July 16, 2019, 9 a.m. N/A N/A N/A 12.0 ppb (11) N/A 4.0 ppb (6) 7.0 ppb (5) N/A N/A 8.6 μg/m3 (36) 36.0
 
July 16, 2019, 8 a.m. N/A N/A N/A 8.0 ppb (7) N/A 3.0 ppb (4) 13.0 ppb (10) N/A N/A 7.8 μg/m3 (32) 32.0
 
July 16, 2019, 7 a.m. N/A N/A N/A 7.0 ppb (6) N/A 1.0 ppb (1) 15.0 ppb (12) N/A N/A 7.5 μg/m3 (31) 31.0
 
July 16, 2019, 6 a.m. N/A N/A N/A 7.0 ppb (6) N/A 1.0 ppb (1) 17.0 ppb (13) N/A N/A 8.7 μg/m3 (36) 36.0
 
July 16, 2019, 5 a.m. N/A N/A N/A 10.0 ppb (9) N/A 2.0 ppb (3) 19.0 ppb (15) N/A N/A 10.8 μg/m3 (45) 45.0
 
July 16, 2019, 4 a.m. N/A N/A N/A 13.0 ppb (12) N/A 4.0 ppb (6) 22.0 ppb (17) N/A N/A 8.7 μg/m3 (36) 36.0
 
July 16, 2019, 3 a.m. N/A N/A N/A 14.0 ppb (13) N/A 2.0 ppb (3) 24.0 ppb (18) N/A N/A 12.8 μg/m3 (52) 52.0
 
July 16, 2019, 2 a.m. N/A N/A N/A 10.0 ppb (9) N/A 2.0 ppb (3) 29.0 ppb (22) N/A N/A 10.1 μg/m3 (42) 42.0
 
July 16, 2019, 1 a.m. N/A N/A N/A 9.0 ppb (8) N/A 1.0 ppb (1) 30.0 ppb (23) N/A N/A 6.7 μg/m3 (28) 28.0
 
July 16, 2019, midnight N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 5.0 μg/m3 (21) 24.0
 
July 15, 2019, 11 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 4.0 μg/m3 (17) 23.0
 
July 15, 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 4.3 μg/m3 (18) 23.0
 
July 15, 2019, 9 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
 
July 15, 2019, 8 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 29.0 ppb (22) N/A N/A 3.3 μg/m3 (14) 22.0
 
July 15, 2019, 7 p.m. N/A N/A N/A 5.0 ppb (5) N/A 5.0 ppb (7) 29.0 ppb (22) N/A N/A 3.7 μg/m3 (15) 22.0
 
July 15, 2019, 6 p.m. N/A N/A N/A 4.0 ppb (4) N/A 3.0 ppb (4) 33.0 ppb (25) N/A N/A 3.9 μg/m3 (16) 25.0
 
July 15, 2019, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 30.0 ppb (23) N/A N/A 2.3 μg/m3 (10) 23.0
 
July 15, 2019, 4 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 1.1 μg/m3 (5) 23.0
 
July 15, 2019, 3 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 0.9 μg/m3 (4) 22.0
 
July 15, 2019, 2 p.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 0.8 μg/m3 (3) 19.0
 
July 15, 2019, 1 p.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 1.7 μg/m3 (7) 14.0
 
July 15, 2019, noon N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 14.0 ppb (11) N/A N/A 2.5 μg/m3 (10) 11.0
 
July 15, 2019, 11 a.m. N/A N/A N/A 11.0 ppb (10) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A 4.8 μg/m3 (20) 20.0
 
July 15, 2019, 10 a.m. N/A N/A N/A 9.0 ppb (8) N/A 0.0 ppb (0) 9.0 ppb (7) N/A N/A 3.2 μg/m3 (13) 13.0
 
July 15, 2019, 9 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 12.0 ppb (9) N/A N/A 2.5 μg/m3 (10) 10.0
 
July 15, 2019, 8 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (1) 13.0 ppb (10) N/A N/A 1.8 μg/m3 (8) 10.0
 
July 15, 2019, 7 a.m. N/A N/A N/A 4.0 ppb (4) N/A 3.0 ppb (4) 15.0 ppb (12) N/A N/A 1.6 μg/m3 (7) 12.0
 
July 15, 2019, 6 a.m. N/A N/A N/A 6.0 ppb (6) N/A 9.0 ppb (13) 14.0 ppb (11) N/A N/A 1.6 μg/m3 (7) 13.0
 
July 15, 2019, 5 a.m. N/A N/A N/A 12.0 ppb (11) N/A 37.0 ppb (51) 10.0 ppb (8) N/A N/A 2.8 μg/m3 (12) 51.0
 
July 15, 2019, 4 a.m. N/A N/A N/A 10.0 ppb (9) N/A 25.0 ppb (36) 12.0 ppb (9) N/A N/A 1.9 μg/m3 (8) 36.0
 
July 15, 2019, 3 a.m. N/A N/A N/A 5.0 ppb (5) N/A 3.0 ppb (4) 17.0 ppb (13) N/A N/A 2.3 μg/m3 (10) 13.0
 
July 15, 2019, 2 a.m. N/A N/A N/A 5.0 ppb (5) N/A 2.0 ppb (3) 18.0 ppb (14) N/A N/A 1.0 μg/m3 (4) 14.0
 
July 15, 2019, 1 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A 0.7 μg/m3 (3) 15.0
 
July 15, 2019, midnight N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 0.7 μg/m3 (3) 18.0
 
July 14, 2019, 11 p.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 1.1 μg/m3 (5) 19.0
 
July 14, 2019, 10 p.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 1.3 μg/m3 (5) 19.0
 
July 14, 2019, 9 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 1.4 μg/m3 (6) 20.0
 
July 14, 2019, 8 p.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 0.8 μg/m3 (3) 19.0
 
July 14, 2019, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 22.0 ppb (17) N/A N/A 0.0 μg/m3 (0) 17.0
 
July 14, 2019, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 0.0 μg/m3 (0) 15.0
 
July 14, 2019, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A 0.0 μg/m3 (0) 12.0
 
July 14, 2019, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 15.0 ppb (12) N/A N/A 0.8 μg/m3 (3) 12.0
 
July 14, 2019, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A 0.5 μg/m3 (2) 12.0
 
July 14, 2019, 2 p.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 1.5 μg/m3 (6) 16.0
 
July 14, 2019, 1 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (1) 24.0 ppb (18) N/A N/A 1.7 μg/m3 (7) 18.0
 
July 14, 2019, noon N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 28.0 ppb (22) N/A N/A 1.4 μg/m3 (6) 22.0
 
July 14, 2019, 11 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (1) 30.0 ppb (23) N/A N/A 1.3 μg/m3 (5) 23.0
 
July 14, 2019, 10 a.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 1.5 μg/m3 (6) 24.0
 
July 14, 2019, 9 a.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 1.3 μg/m3 (5) 22.0
 
July 14, 2019, 8 a.m. N/A N/A N/A 7.0 ppb (6) N/A 2.0 ppb (3) 37.0 ppb (28) N/A N/A 1.1 μg/m3 (5) 28.0
 
July 13, 2019, 8 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 5.9 μg/m3 (25) 27.0
 
July 13, 2019, 7 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 6.5 μg/m3 (27) 28.0
 
July 13, 2019, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 5.9 μg/m3 (25) 27.0
 
July 13, 2019, 5 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 8.7 μg/m3 (36) 36.0
 
July 13, 2019, 4 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 10.6 μg/m3 (44) 44.0
 
July 13, 2019, 3 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 8.8 μg/m3 (37) 37.0
 
July 13, 2019, 2 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 7.8 μg/m3 (32) 32.0
 
July 13, 2019, 1 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A 7.4 μg/m3 (31) 31.0
 
July 13, 2019, noon N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A 8.4 μg/m3 (35) 35.0
 
July 13, 2019, 11 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (1) 15.0 ppb (12) N/A N/A 8.8 μg/m3 (37) 37.0
 
July 13, 2019, 10 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 14.0 ppb (11) N/A N/A 12.3 μg/m3 (51) 51.0
 
July 13, 2019, 9 a.m. N/A N/A N/A 6.0 ppb (6) N/A 0.0 ppb (0) 13.0 ppb (10) N/A N/A 15.1 μg/m3 (57) 57.0
 
July 13, 2019, 8 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 12.8 μg/m3 (52) 52.0
 
July 13, 2019, 7 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (1) 17.0 ppb (13) N/A N/A 8.4 μg/m3 (35) 35.0
 
July 13, 2019, 6 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (1) 17.0 ppb (13) N/A N/A 8.1 μg/m3 (34) 34.0