AQSQID: 000090222

Site Name: Calgary Northwest

Location: Calgary (32 Ave NW), CC

Reporting: True, Located: True

Current AQI: 56.0

Calgary (32 Ave NW) CC, CA: 51.0814, -114.1403

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 21, 2019, 8 a.m. N/A N/A N/A 9.0 ppb (8) N/A N/A 6.0 ppb (5) 0.12 ppb (1) N/A 14.6 μg/m3 (56) 56.0
 
July 21, 2019, 7 a.m. N/A N/A N/A 8.0 ppb (7) N/A N/A 11.0 ppb (8) 0.12 ppb (1) N/A 15.1 μg/m3 (57) 57.0
 
July 21, 2019, 6 a.m. N/A N/A N/A 10.0 ppb (9) N/A N/A 18.0 ppb (14) 0.13 ppb (1) N/A 13.2 μg/m3 (53) 53.0
 
July 21, 2019, 5 a.m. N/A N/A N/A 10.0 ppb (9) N/A N/A 20.0 ppb (15) 0.17 ppb (2) N/A 20.3 μg/m3 (68) 68.0
 
July 21, 2019, 4 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 28.0 ppb (22) 0.14 ppb (2) N/A 20.5 μg/m3 (68) 68.0
 
July 21, 2019, 3 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 36.0 ppb (28) 0.12 ppb (1) N/A 20.9 μg/m3 (69) 69.0
 
July 21, 2019, 2 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 29.0 ppb (22) 0.13 ppb (1) N/A 22.9 μg/m3 (73) 73.0
 
July 21, 2019, 1 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 29.0 ppb (22) 0.12 ppb (1) N/A 28.1 μg/m3 (84) 84.0
 
July 21, 2019, midnight N/A N/A N/A 4.0 ppb (4) N/A N/A 28.0 ppb (22) 0.11 ppb (1) N/A 29.7 μg/m3 (88) 88.0
 
July 20, 2019, 11 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 27.0 ppb (21) 0.12 ppb (1) N/A 27.9 μg/m3 (84) 84.0
 
July 20, 2019, 10 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 23.0 ppb (18) 0.11 ppb (1) N/A 23.9 μg/m3 (75) 75.0
 
July 20, 2019, 9 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 22.0 ppb (17) 0.11 ppb (1) N/A 31.4 μg/m3 (91) 91.0
 
July 20, 2019, 8 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 18.0 ppb (14) 0.1 ppb (1) N/A 30.3 μg/m3 (89) 89.0
 
July 20, 2019, 7 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 16.0 ppb (12) 0.11 ppb (1) N/A 14.1 μg/m3 (54) 54.0
 
July 20, 2019, 6 p.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 11.0 ppb (8) 0.1 ppb (1) N/A 11.3 μg/m3 (47) 47.0
 
July 20, 2019, 5 p.m. N/A N/A N/A 8.0 ppb (7) N/A N/A 8.0 ppb (6) 0.13 ppb (1) N/A 9.4 μg/m3 (39) 39.0
 
July 20, 2019, 4 p.m. N/A N/A N/A 8.0 ppb (7) N/A N/A 6.0 ppb (5) 0.15 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
July 20, 2019, 3 p.m. N/A N/A N/A 11.0 ppb (10) N/A N/A 4.0 ppb (3) 0.08 ppb (1) N/A 5.1 μg/m3 (21) 21.0
 
July 20, 2019, 2 p.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 8.0 ppb (6) 0.07 ppb (1) N/A 3.3 μg/m3 (14) 14.0
 
July 20, 2019, 1 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 16.0 ppb (12) 0.07 ppb (1) N/A 4.3 μg/m3 (18) 18.0
 
July 20, 2019, noon N/A N/A N/A 5.0 ppb (5) N/A N/A 18.0 ppb (14) 0.07 ppb (1) N/A 3.4 μg/m3 (14) 14.0
 
July 20, 2019, 11 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 18.0 ppb (14) 0.06 ppb (1) N/A 3.3 μg/m3 (14) 14.0
 
July 20, 2019, 10 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 4.2 μg/m3 (18) 18.0
 
July 20, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) 0.07 ppb (1) N/A 4.6 μg/m3 (19) 19.0
 
July 20, 2019, 8 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 22.0 ppb (17) 0.06 ppb (1) N/A 4.5 μg/m3 (19) 19.0
 
July 20, 2019, 7 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 22.0 ppb (17) 0.06 ppb (1) N/A 3.3 μg/m3 (14) 17.0
 
July 20, 2019, 6 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 20.0 ppb (15) 0.06 ppb (1) N/A 3.2 μg/m3 (13) 15.0
 
July 20, 2019, 4 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 18.0 ppb (14) 0.05 ppb (1) N/A 2.4 μg/m3 (10) 14.0
 
July 20, 2019, 3 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 22.0 ppb (17) 0.04 ppb (0) N/A 2.4 μg/m3 (10) 17.0
 
July 20, 2019, 2 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 24.0 ppb (18) 0.05 ppb (1) N/A 2.5 μg/m3 (10) 18.0
 
July 20, 2019, 1 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 23.0 ppb (18) 0.03 ppb (0) N/A 2.4 μg/m3 (10) 18.0
 
July 20, 2019, midnight N/A N/A N/A 1.0 ppb (1) N/A N/A 23.0 ppb (18) 0.02 ppb (0) N/A 2.3 μg/m3 (10) 18.0
 
July 19, 2019, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 24.0 ppb (18) 0.03 ppb (0) N/A 2.1 μg/m3 (9) 18.0
 
July 19, 2019, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 25.0 ppb (19) 0.03 ppb (0) N/A 2.4 μg/m3 (10) 19.0
 
July 19, 2019, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 23.0 ppb (18) 0.04 ppb (0) N/A 4.0 μg/m3 (17) 18.0
 
July 19, 2019, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 23.0 ppb (18) 0.04 ppb (0) N/A 3.4 μg/m3 (14) 18.0
 
July 19, 2019, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 21.0 ppb (16) 0.04 ppb (0) N/A 3.2 μg/m3 (13) 16.0
 
July 19, 2019, 6 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 21.0 ppb (16) 0.04 ppb (0) N/A 2.9 μg/m3 (12) 16.0
 
July 19, 2019, 5 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 19.0 ppb (15) 0.06 ppb (1) N/A 3.8 μg/m3 (16) 16.0
 
July 19, 2019, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 26.0 ppb (20) 0.03 ppb (0) N/A N/A 20.0
 
July 19, 2019, 3 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 22.0 ppb (17) 0.04 ppb (0) N/A -2.1 μg/m3 (0) 17.0
 
July 19, 2019, 2 p.m. N/A N/A N/A 9.0 ppb (8) N/A N/A 16.0 ppb (12) 0.04 ppb (0) N/A -1.0 μg/m3 (0) 12.0
 
July 19, 2019, 1 p.m. N/A N/A N/A 9.0 ppb (8) N/A N/A 14.0 ppb (11) 0.04 ppb (0) N/A -1.3 μg/m3 (0) 11.0
 
July 19, 2019, noon N/A N/A N/A 9.0 ppb (8) N/A N/A 16.0 ppb (12) 0.03 ppb (0) N/A -1.7 μg/m3 (0) 12.0
 
July 19, 2019, 11 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 19.0 ppb (15) 0.02 ppb (0) N/A -1.9 μg/m3 (0) 15.0
 
July 19, 2019, 10 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A N/A N/A -2.4 μg/m3 (0) 4.0
 
July 19, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) 0.02 ppb (0) N/A -1.9 μg/m3 (0) 15.0
 
July 19, 2019, 8 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 22.0 ppb (17) 0.01 ppb (0) N/A -1.7 μg/m3 (0) 17.0
 
July 19, 2019, 7 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 24.0 ppb (18) 0.01 ppb (0) N/A -1.8 μg/m3 (0) 18.0
 
July 19, 2019, 6 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 24.0 ppb (18) 0.03 ppb (0) N/A -0.8 μg/m3 (0) 18.0
 
July 19, 2019, 5 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 27.0 ppb (21) 0.04 ppb (0) N/A -0.1 μg/m3 (0) 21.0
 
July 19, 2019, 4 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 27.0 ppb (21) 0.06 ppb (1) N/A 0.1 μg/m3 (0) 21.0
 
July 19, 2019, 3 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 29.0 ppb (22) 0.06 ppb (1) N/A 0.4 μg/m3 (2) 22.0
 
July 19, 2019, 2 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 33.0 ppb (25) 0.04 ppb (0) N/A 0.0 μg/m3 (0) 25.0
 
July 19, 2019, 1 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 34.0 ppb (26) 0.03 ppb (0) N/A 0.6 μg/m3 (2) 26.0
 
July 19, 2019, midnight N/A N/A N/A 2.0 ppb (2) N/A N/A 35.0 ppb (27) 0.03 ppb (0) N/A 0.0 μg/m3 (0) 27.0
 
July 18, 2019, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 35.0 ppb (27) 0.04 ppb (0) N/A -0.2 μg/m3 (0) 27.0
 
July 18, 2019, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 33.0 ppb (25) 0.05 ppb (1) N/A -0.2 μg/m3 (0) 25.0
 
July 18, 2019, 9 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 31.0 ppb (24) 0.05 ppb (1) N/A 2.6 μg/m3 (11) 24.0
 
July 18, 2019, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 35.0 ppb (27) 0.04 ppb (0) N/A 4.1 μg/m3 (17) 27.0
 
July 18, 2019, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 35.0 ppb (27) 0.05 ppb (1) N/A 2.4 μg/m3 (10) 27.0
 
July 18, 2019, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 37.0 ppb (28) 0.02 ppb (0) N/A 1.0 μg/m3 (4) 28.0
 
July 18, 2019, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 36.0 ppb (28) 0.02 ppb (0) N/A -0.2 μg/m3 (0) 28.0
 
July 18, 2019, 4 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 28.0 ppb (22) 0.04 ppb (0) N/A 1.6 μg/m3 (7) 22.0
 
July 18, 2019, 3 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 27.0 ppb (21) 0.05 ppb (1) N/A 2.0 μg/m3 (8) 21.0
 
July 18, 2019, 2 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 25.0 ppb (19) 0.06 ppb (1) N/A 1.2 μg/m3 (5) 19.0
 
July 18, 2019, 1 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 27.0 ppb (21) 0.06 ppb (1) N/A 0.3 μg/m3 (1) 21.0
 
July 18, 2019, noon N/A N/A N/A 6.0 ppb (6) N/A N/A 24.0 ppb (18) 0.05 ppb (1) N/A 1.1 μg/m3 (5) 18.0
 
July 18, 2019, 11 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 25.0 ppb (19) 0.03 ppb (0) N/A 0.6 μg/m3 (2) 19.0
 
July 18, 2019, 10 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A N/A N/A 0.8 μg/m3 (3) 4.0
 
July 18, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) 0.03 ppb (0) N/A 1.1 μg/m3 (5) 22.0
 
July 18, 2019, 8 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 33.0 ppb (25) 0.03 ppb (0) N/A 0.7 μg/m3 (3) 25.0
 
July 18, 2019, 7 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 36.0 ppb (28) 0.02 ppb (0) N/A 0.5 μg/m3 (2) 28.0
 
July 18, 2019, 6 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 35.0 ppb (27) 0.02 ppb (0) N/A -0.6 μg/m3 (0) 27.0
 
July 18, 2019, 5 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 34.0 ppb (26) 0.03 ppb (0) N/A 0.0 μg/m3 (0) 26.0
 
July 18, 2019, 4 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 31.0 ppb (24) 0.04 ppb (0) N/A -0.3 μg/m3 (0) 24.0
 
July 18, 2019, 3 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 29.0 ppb (22) 0.05 ppb (1) N/A 1.3 μg/m3 (5) 22.0
 
July 18, 2019, 2 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 34.0 ppb (26) 0.06 ppb (1) N/A 1.9 μg/m3 (8) 26.0
 
July 18, 2019, 1 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 40.0 ppb (31) 0.08 ppb (1) N/A 4.7 μg/m3 (20) 31.0
 
July 18, 2019, midnight N/A N/A N/A 4.0 ppb (4) N/A N/A 38.0 ppb (29) 0.1 ppb (1) N/A 4.2 μg/m3 (18) 29.0
 
July 17, 2019, 11 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 37.0 ppb (28) 0.08 ppb (1) N/A 3.6 μg/m3 (15) 28.0
 
July 17, 2019, 10 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 38.0 ppb (29) 0.08 ppb (1) N/A 3.8 μg/m3 (16) 29.0
 
July 17, 2019, 9 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 36.0 ppb (28) 0.07 ppb (1) N/A 3.8 μg/m3 (16) 28.0
 
July 17, 2019, 8 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 41.0 ppb (32) 0.06 ppb (1) N/A 3.7 μg/m3 (15) 32.0
 
July 17, 2019, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 41.0 ppb (32) 0.06 ppb (1) N/A 2.8 μg/m3 (12) 32.0
 
July 17, 2019, 6 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 38.0 ppb (29) 0.07 ppb (1) N/A 2.6 μg/m3 (11) 29.0
 
July 17, 2019, 5 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 32.0 ppb (25) 0.07 ppb (1) N/A 1.1 μg/m3 (5) 25.0
 
July 17, 2019, 4 p.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 18.0 ppb (14) 0.11 ppb (1) N/A 1.0 μg/m3 (4) 14.0
 
July 17, 2019, 3 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 14.0 ppb (11) 0.09 ppb (1) N/A 0.8 μg/m3 (3) 11.0
 
July 17, 2019, 2 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 10.0 ppb (8) 0.08 ppb (1) N/A 0.6 μg/m3 (2) 8.0
 
July 17, 2019, 1 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 7.0 ppb (5) 0.08 ppb (1) N/A 0.5 μg/m3 (2) 5.0
 
July 17, 2019, noon N/A N/A N/A 6.0 ppb (6) N/A N/A 5.0 ppb (4) 0.06 ppb (1) N/A 0.4 μg/m3 (2) 6.0
 
July 17, 2019, 11 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 3.0 ppb (2) 0.05 ppb (1) N/A 0.4 μg/m3 (2) 6.0
 
July 17, 2019, 10 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 0.4 μg/m3 (2) 6.0
 
July 17, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) 0.07 ppb (1) N/A 0.8 μg/m3 (3) 4.0
 
July 17, 2019, 8 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 8.0 ppb (6) 0.07 ppb (1) N/A 1.5 μg/m3 (6) 6.0
 
July 17, 2019, 7 a.m. N/A N/A N/A 9.0 ppb (8) N/A N/A 9.0 ppb (7) 0.12 ppb (1) N/A 1.7 μg/m3 (7) 8.0
 
July 17, 2019, 6 a.m. N/A N/A N/A 13.0 ppb (12) N/A N/A 5.0 ppb (4) 0.22 ppb (2) N/A 4.2 μg/m3 (18) 18.0
 
July 17, 2019, 5 a.m. N/A N/A N/A 13.0 ppb (12) N/A N/A 8.0 ppb (6) 0.2 ppb (2) N/A 3.6 μg/m3 (15) 15.0
 
July 17, 2019, 4 a.m. N/A N/A N/A 8.0 ppb (7) N/A N/A 18.0 ppb (14) 0.14 ppb (2) N/A 1.8 μg/m3 (8) 14.0
 
July 17, 2019, 3 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 30.0 ppb (23) 0.08 ppb (1) N/A 0.9 μg/m3 (4) 23.0
 
July 17, 2019, 2 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 37.0 ppb (28) 0.05 ppb (1) N/A 1.2 μg/m3 (5) 28.0
 
July 17, 2019, 1 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 40.0 ppb (31) 0.06 ppb (1) N/A 0.8 μg/m3 (3) 31.0
 
July 17, 2019, midnight N/A N/A N/A 2.0 ppb (2) N/A N/A 41.0 ppb (32) 0.06 ppb (1) N/A 0.3 μg/m3 (1) 32.0
 
July 16, 2019, 11 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 38.0 ppb (29) 0.08 ppb (1) N/A 1.5 μg/m3 (6) 29.0
 
July 16, 2019, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 34.0 ppb (26) 0.07 ppb (1) N/A 1.7 μg/m3 (7) 26.0
 
July 16, 2019, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 40.0 ppb (31) 0.05 ppb (1) N/A 1.5 μg/m3 (6) 31.0
 
July 16, 2019, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 43.0 ppb (33) 0.05 ppb (1) N/A 1.6 μg/m3 (7) 33.0
 
July 16, 2019, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 42.0 ppb (32) 0.05 ppb (1) N/A 1.1 μg/m3 (5) 32.0
 
July 16, 2019, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 38.0 ppb (29) 0.07 ppb (1) N/A 2.0 μg/m3 (8) 29.0
 
July 16, 2019, 5 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 34.0 ppb (26) 0.08 ppb (1) N/A 2.5 μg/m3 (10) 26.0
 
July 16, 2019, 4 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 31.0 ppb (24) 0.08 ppb (1) N/A 2.0 μg/m3 (8) 24.0
 
July 16, 2019, 3 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 29.0 ppb (22) 0.09 ppb (1) N/A 2.3 μg/m3 (10) 22.0
 
July 16, 2019, 2 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 27.0 ppb (21) 0.09 ppb (1) N/A 1.1 μg/m3 (5) 21.0
 
July 16, 2019, 1 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 22.0 ppb (17) 0.1 ppb (1) N/A 4.2 μg/m3 (18) 18.0
 
July 16, 2019, noon N/A N/A N/A 4.0 ppb (4) N/A N/A 24.0 ppb (18) 0.07 ppb (1) N/A 2.8 μg/m3 (12) 18.0
 
July 16, 2019, 11 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 25.0 ppb (19) 0.06 ppb (1) N/A 3.6 μg/m3 (15) 19.0
 
July 16, 2019, 10 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 4.9 μg/m3 (20) 20.0
 
July 16, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) 0.06 ppb (1) N/A 4.0 μg/m3 (17) 21.0
 
July 16, 2019, 8 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 28.0 ppb (22) 0.05 ppb (1) N/A 5.5 μg/m3 (23) 23.0
 
July 16, 2019, 7 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 31.0 ppb (24) 0.07 ppb (1) N/A 6.2 μg/m3 (26) 26.0
 
July 16, 2019, 6 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 28.0 ppb (22) 0.09 ppb (1) N/A 6.8 μg/m3 (28) 28.0
 
July 16, 2019, 5 a.m. N/A N/A N/A 8.0 ppb (7) N/A N/A 30.0 ppb (23) 0.1 ppb (1) N/A 6.2 μg/m3 (26) 26.0
 
July 16, 2019, 4 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 36.0 ppb (28) 0.08 ppb (1) N/A 5.0 μg/m3 (21) 28.0
 
July 16, 2019, 3 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 40.0 ppb (31) 0.07 ppb (1) N/A 4.6 μg/m3 (19) 31.0
 
July 16, 2019, 2 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 39.0 ppb (30) 0.05 ppb (1) N/A 5.6 μg/m3 (23) 30.0
 
July 16, 2019, 1 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 41.0 ppb (32) 0.04 ppb (0) N/A 6.0 μg/m3 (25) 32.0
 
July 16, 2019, midnight N/A N/A N/A 6.0 ppb (6) N/A N/A 40.0 ppb (31) 0.04 ppb (0) N/A 7.9 μg/m3 (33) 33.0
 
July 15, 2019, 11 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 41.0 ppb (32) 0.05 ppb (1) N/A 6.4 μg/m3 (27) 32.0
 
July 15, 2019, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 47.0 ppb (36) 0.08 ppb (1) N/A 7.0 μg/m3 (29) 36.0
 
July 15, 2019, 9 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 49.0 ppb (38) 0.08 ppb (1) N/A 12.8 μg/m3 (52) 52.0
 
July 15, 2019, 8 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 48.0 ppb (37) 0.06 ppb (1) N/A 8.7 μg/m3 (36) 37.0
 
July 15, 2019, 7 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 44.0 ppb (34) 0.05 ppb (1) N/A 7.2 μg/m3 (30) 34.0
 
July 15, 2019, 6 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 41.0 ppb (32) 0.05 ppb (1) N/A 5.8 μg/m3 (24) 32.0
 
July 15, 2019, 5 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 39.0 ppb (30) 0.05 ppb (1) N/A 6.9 μg/m3 (29) 30.0
 
July 15, 2019, 4 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 27.0 ppb (21) 0.08 ppb (1) N/A 8.2 μg/m3 (34) 34.0
 
July 15, 2019, 3 p.m. N/A N/A N/A 10.0 ppb (9) N/A N/A 14.0 ppb (11) 0.07 ppb (1) N/A 1.9 μg/m3 (8) 11.0
 
July 15, 2019, 2 p.m. N/A N/A N/A 11.0 ppb (10) N/A N/A 9.0 ppb (7) 0.07 ppb (1) N/A 2.7 μg/m3 (11) 11.0
 
July 15, 2019, 1 p.m. N/A N/A N/A 10.0 ppb (9) N/A N/A 10.0 ppb (8) 0.06 ppb (1) N/A 2.5 μg/m3 (10) 10.0
 
July 15, 2019, noon N/A N/A N/A 10.0 ppb (9) N/A N/A 11.0 ppb (8) 0.04 ppb (0) N/A 2.5 μg/m3 (10) 10.0
 
July 15, 2019, 11 a.m. N/A N/A N/A 9.0 ppb (8) N/A N/A 15.0 ppb (12) 0.03 ppb (0) N/A 2.0 μg/m3 (8) 12.0
 
July 15, 2019, 10 a.m. N/A N/A N/A 8.0 ppb (7) N/A N/A N/A N/A N/A 1.8 μg/m3 (8) 8.0
 
July 15, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) 0.04 ppb (0) N/A 3.2 μg/m3 (13) 13.0
 
July 15, 2019, 8 a.m. N/A N/A N/A 12.0 ppb (11) N/A N/A 19.0 ppb (15) 0.04 ppb (0) N/A 3.0 μg/m3 (12) 15.0
 
July 15, 2019, 7 a.m. N/A N/A N/A 9.0 ppb (8) N/A N/A 23.0 ppb (18) 0.05 ppb (1) N/A 2.7 μg/m3 (11) 18.0
 
July 15, 2019, 6 a.m. N/A N/A N/A 11.0 ppb (10) N/A N/A 22.0 ppb (17) 0.05 ppb (1) N/A 4.0 μg/m3 (17) 17.0
 
July 15, 2019, 5 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 28.0 ppb (22) 0.05 ppb (1) N/A 3.9 μg/m3 (16) 22.0
 
July 15, 2019, 4 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 34.0 ppb (26) 0.05 ppb (1) N/A 3.5 μg/m3 (15) 26.0
 
July 15, 2019, 3 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 37.0 ppb (28) 0.05 ppb (1) N/A 2.7 μg/m3 (11) 28.0
 
July 15, 2019, 2 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 41.0 ppb (32) 0.04 ppb (0) N/A 1.7 μg/m3 (7) 32.0
 
July 15, 2019, 1 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) 0.04 ppb (0) N/A 1.0 μg/m3 (4) 37.0
 
July 15, 2019, midnight N/A N/A N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) 0.04 ppb (0) N/A 3.6 μg/m3 (15) 36.0
 
July 14, 2019, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) 0.04 ppb (0) N/A 5.8 μg/m3 (24) 35.0
 
July 14, 2019, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 51.0 ppb (39) 0.03 ppb (0) N/A 4.6 μg/m3 (19) 39.0
 
July 14, 2019, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 50.0 ppb (38) 0.04 ppb (0) N/A 5.3 μg/m3 (22) 38.0
 
July 14, 2019, 8 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 47.0 ppb (36) 0.05 ppb (1) N/A 9.0 μg/m3 (38) 38.0
 
July 14, 2019, 7 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 47.0 ppb (36) 0.07 ppb (1) N/A 10.0 μg/m3 (42) 42.0
 
July 14, 2019, 6 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 45.0 ppb (35) 0.08 ppb (1) N/A 9.9 μg/m3 (41) 41.0
 
July 14, 2019, 5 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 44.0 ppb (34) 0.05 ppb (1) N/A 6.8 μg/m3 (28) 34.0
 
July 14, 2019, 4 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 33.0 ppb (25) 0.06 ppb (1) N/A 5.4 μg/m3 (23) 25.0
 
July 14, 2019, 3 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 19.0 ppb (15) 0.06 ppb (1) N/A 5.0 μg/m3 (21) 21.0
 
July 14, 2019, 2 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 17.0 ppb (13) 0.06 ppb (1) N/A 2.2 μg/m3 (9) 13.0
 
July 14, 2019, 1 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 12.0 ppb (9) 0.06 ppb (1) N/A 1.9 μg/m3 (8) 9.0
 
July 14, 2019, noon N/A N/A N/A 6.0 ppb (6) N/A N/A 9.0 ppb (7) 0.05 ppb (1) N/A 2.7 μg/m3 (11) 11.0
 
July 14, 2019, 11 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 11.0 ppb (8) 0.04 ppb (0) N/A 3.3 μg/m3 (14) 14.0
 
July 14, 2019, 10 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A N/A N/A 2.8 μg/m3 (12) 12.0
 
July 14, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) 0.05 ppb (1) N/A 3.1 μg/m3 (13) 14.0
 
July 14, 2019, 8 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 21.0 ppb (16) 0.05 ppb (1) N/A 3.9 μg/m3 (16) 16.0