AQSQID: 000100132

Site Name: Mahon Park

Location: N Vancouver (W 16th St), CC

Reporting: True, Located: True

Current AQI: 22.0

N Vancouver (W 16th St) CC, CA: 49.323891, -123.083611

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 25, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 1.2 μg/m3 (5) 22.0
 
Jan. 25, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 1.2 μg/m3 (5) 24.0
 
Jan. 25, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 1.1 μg/m3 (5) 25.0
 
Jan. 25, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 1.2 μg/m3 (5) 24.0
 
Jan. 25, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 1.4 μg/m3 (6) 23.0
 
Jan. 25, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 1.3 μg/m3 (5) 25.0
 
Jan. 25, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A N/A 2.3 μg/m3 (10) 10.0
 
Jan. 25, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A N/A 1.7 μg/m3 (7) 12.0
 
Jan. 25, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 1.5 μg/m3 (6) 18.0
 
Jan. 25, 2020, noon N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 1.4 μg/m3 (6) 22.0
 
Jan. 25, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 1.8 μg/m3 (8) 18.0
 
Jan. 25, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 1.9 μg/m3 (8) 21.0
 
Jan. 25, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 2.2 μg/m3 (9) 22.0
 
Jan. 25, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 2.7 μg/m3 (11) 15.0
 
Jan. 25, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 3.3 μg/m3 (14) 15.0
 
Jan. 25, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 2.7 μg/m3 (11) 15.0
 
Jan. 25, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 3.2 μg/m3 (13) 15.0
 
Jan. 25, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A N/A 3.1 μg/m3 (13) 13.0
 
Jan. 25, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A N/A 3.5 μg/m3 (15) 15.0
 
Jan. 25, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A N/A 3.6 μg/m3 (15) 15.0
 
Jan. 25, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 3.0 μg/m3 (12) 15.0
 
Jan. 25, 2020, midnight N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 2.2 μg/m3 (9) 15.0
 
Jan. 24, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 3.0 μg/m3 (12) 16.0
 
Jan. 24, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 2.7 μg/m3 (11) 16.0
 
Jan. 24, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 2.5 μg/m3 (10) 21.0
 
Jan. 24, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 1.9 μg/m3 (8) 25.0
 
Jan. 24, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 2.3 μg/m3 (10) 19.0
 
Jan. 24, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A N/A 3.3 μg/m3 (14) 14.0
 
Jan. 24, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 3.6 μg/m3 (15) 15.0
 
Jan. 24, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A N/A 2.9 μg/m3 (12) 12.0
 
Jan. 24, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 2.1 μg/m3 (9) 12.0
 
Jan. 24, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 1.7 μg/m3 (7) 14.0
 
Jan. 24, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 2.1 μg/m3 (9) 16.0
 
Jan. 24, 2020, noon N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 1.8 μg/m3 (8) 18.0
 
Jan. 24, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 1.5 μg/m3 (6) 19.0
 
Jan. 24, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 1.9 μg/m3 (8) 20.0
 
Jan. 24, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 1.6 μg/m3 (7) 22.0
 
Jan. 24, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 1.6 μg/m3 (7) 22.0
 
Jan. 24, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 1.9 μg/m3 (8) 21.0
 
Jan. 24, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 2.0 μg/m3 (8) 22.0
 
Jan. 24, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 2.1 μg/m3 (9) 19.0
 
Jan. 24, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 1.7 μg/m3 (7) 20.0
 
Jan. 24, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 2.0 μg/m3 (8) 18.0
 
Jan. 24, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 2.3 μg/m3 (10) 15.0
 
Jan. 24, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 2.2 μg/m3 (9) 14.0
 
Jan. 24, 2020, midnight N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 1.7 μg/m3 (7) 15.0
 
Jan. 23, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 1.8 μg/m3 (8) 12.0
 
Jan. 23, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A N/A 1.8 μg/m3 (8) 12.0
 
Jan. 23, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A N/A 1.7 μg/m3 (7) 12.0
 
Jan. 23, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 1.4 μg/m3 (6) 12.0
 
Jan. 23, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 1.5 μg/m3 (6) 12.0
 
Jan. 23, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 1.4 μg/m3 (6) 14.0
 
Jan. 23, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 1.2 μg/m3 (5) 15.0
 
Jan. 23, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 0.9 μg/m3 (4) 16.0
 
Jan. 23, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 0.9 μg/m3 (4) 17.0
 
Jan. 23, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 0.8 μg/m3 (3) 20.0
 
Jan. 23, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 0.7 μg/m3 (3) 22.0
 
Jan. 23, 2020, noon N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 0.7 μg/m3 (3) 22.0
 
Jan. 23, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 0.7 μg/m3 (3) 23.0
 
Jan. 23, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 0.8 μg/m3 (3) 22.0
 
Jan. 23, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 0.7 μg/m3 (3) 23.0
 
Jan. 23, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 0.8 μg/m3 (3) 23.0
 
Jan. 23, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 1.1 μg/m3 (5) 18.0
 
Jan. 23, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 1.2 μg/m3 (5) 20.0
 
Jan. 23, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 1.7 μg/m3 (7) 20.0
 
Jan. 23, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 2.4 μg/m3 (10) 22.0
 
Jan. 23, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 2.0 μg/m3 (8) 22.0
 
Jan. 23, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 3.2 μg/m3 (13) 18.0
 
Jan. 23, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 2.3 μg/m3 (10) 16.0
 
Jan. 23, 2020, midnight N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 1.6 μg/m3 (7) 19.0
 
Jan. 22, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 1.4 μg/m3 (6) 22.0
 
Jan. 22, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 1.9 μg/m3 (8) 19.0
 
Jan. 22, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 2.4 μg/m3 (10) 21.0
 
Jan. 22, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 2.9 μg/m3 (12) 22.0
 
Jan. 22, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 4.0 μg/m3 (17) 19.0
 
Jan. 22, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 22, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 5.7 μg/m3 (24) 24.0
 
Jan. 22, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 5.7 μg/m3 (24) 24.0
 
Jan. 22, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 4.3 μg/m3 (18) 18.0
 
Jan. 22, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 3.7 μg/m3 (15) 19.0
 
Jan. 22, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 3.2 μg/m3 (13) 19.0
 
Jan. 22, 2020, noon N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 2.7 μg/m3 (11) 19.0
 
Jan. 22, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 2.3 μg/m3 (10) 21.0
 
Jan. 22, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 2.4 μg/m3 (10) 20.0
 
Jan. 22, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 2.8 μg/m3 (12) 21.0
 
Jan. 22, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 3.3 μg/m3 (14) 20.0
 
Jan. 22, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 3.3 μg/m3 (14) 20.0
 
Jan. 22, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 4.6 μg/m3 (19) 19.0
 
Jan. 22, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 5.4 μg/m3 (23) 23.0
 
Jan. 22, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 7.2 μg/m3 (30) 30.0
 
Jan. 22, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 22, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 7.9 μg/m3 (33) 33.0
 
Jan. 22, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 7.5 μg/m3 (31) 31.0
 
Jan. 22, 2020, midnight N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 21, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 10.5 μg/m3 (44) 44.0
 
Jan. 21, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 10.1 μg/m3 (42) 42.0
 
Jan. 21, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A N/A 24.0
 
Jan. 21, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 2.0 μg/m3 (8) 23.0
 
Jan. 21, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 1.9 μg/m3 (8) 22.0
 
Jan. 21, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 2.4 μg/m3 (10) 21.0
 
Jan. 21, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 3.0 μg/m3 (12) 20.0
 
Jan. 21, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 2.6 μg/m3 (11) 17.0
 
Jan. 21, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 1.9 μg/m3 (8) 23.0
 
Jan. 21, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 1.5 μg/m3 (6) 28.0
 
Jan. 21, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 1.7 μg/m3 (7) 28.0
 
Jan. 21, 2020, noon N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 1.6 μg/m3 (7) 29.0
 
Jan. 21, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 1.2 μg/m3 (5) 30.0
 
Jan. 21, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 1.1 μg/m3 (5) 31.0
 
Jan. 21, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 1.3 μg/m3 (5) 22.0
 
Jan. 21, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 1.2 μg/m3 (5) 26.0
 
Jan. 21, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (5) N/A N/A 2.5 μg/m3 (10) 10.0
 
Jan. 21, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A N/A 2.9 μg/m3 (12) 12.0
 
Jan. 21, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A N/A 1.9 μg/m3 (8) 10.0
 
Jan. 21, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A N/A 4.5 μg/m3 (19) 19.0
 
Jan. 21, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A N/A 2.7 μg/m3 (11) 11.0
 
Jan. 21, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 1.9 μg/m3 (8) 14.0
 
Jan. 21, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 1.7 μg/m3 (7) 14.0
 
Jan. 21, 2020, midnight N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 1.9 μg/m3 (8) 15.0
 
Jan. 20, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 1.3 μg/m3 (5) 18.0
 
Jan. 20, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 1.4 μg/m3 (6) 18.0
 
Jan. 20, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 1.8 μg/m3 (8) 15.0
 
Jan. 20, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 2.1 μg/m3 (9) 15.0
 
Jan. 20, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 2.3 μg/m3 (10) 14.0
 
Jan. 20, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 1.9 μg/m3 (8) 15.0
 
Jan. 20, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 2.3 μg/m3 (10) 14.0
 
Jan. 20, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 2.2 μg/m3 (9) 12.0
 
Jan. 20, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 1.4 μg/m3 (6) 17.0
 
Jan. 20, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 1.3 μg/m3 (5) 15.0
 
Jan. 20, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 1.0 μg/m3 (4) 21.0
 
Jan. 20, 2020, noon N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 1.2 μg/m3 (5) 14.0
 
Jan. 20, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 1.0 μg/m3 (4) 20.0
 
Jan. 20, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A N/A 1.1 μg/m3 (5) 10.0
 
Jan. 20, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) N/A N/A 1.6 μg/m3 (7) 7.0
 
Jan. 20, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A N/A 2.1 μg/m3 (9) 9.0
 
Jan. 20, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A N/A 2.8 μg/m3 (12) 12.0
 
Jan. 20, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A N/A 13.2 μg/m3 (53) 53.0
 
Jan. 20, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A N/A 4.6 μg/m3 (19) 19.0
 
Jan. 20, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 1.6 μg/m3 (7) 18.0
 
Jan. 20, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 1.8 μg/m3 (8) 20.0
 
Jan. 20, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 1.4 μg/m3 (6) 21.0
 
Jan. 20, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 1.9 μg/m3 (8) 18.0
 
Jan. 20, 2020, midnight N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 1.6 μg/m3 (7) 19.0
 
Jan. 19, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 1.8 μg/m3 (8) 18.0
 
Jan. 19, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 1.6 μg/m3 (7) 18.0
 
Jan. 19, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 1.8 μg/m3 (8) 19.0
 
Jan. 19, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 2.1 μg/m3 (9) 18.0
 
Jan. 19, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 1.6 μg/m3 (7) 21.0
 
Jan. 19, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 1.5 μg/m3 (6) 18.0
 
Jan. 19, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 1.3 μg/m3 (5) 16.0
 
Jan. 19, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 1.1 μg/m3 (5) 20.0
 
Jan. 19, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 1.0 μg/m3 (4) 20.0
 
Jan. 19, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 1.1 μg/m3 (5) 20.0
 
Jan. 19, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 1.8 μg/m3 (8) 20.0
 
Jan. 19, 2020, noon N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 2.1 μg/m3 (9) 17.0
 
Jan. 19, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 2.1 μg/m3 (9) 23.0
 
Jan. 19, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 2.3 μg/m3 (10) 24.0
 
Jan. 19, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 2.5 μg/m3 (10) 23.0
 
Jan. 19, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 2.7 μg/m3 (11) 22.0
 
Jan. 19, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 2.2 μg/m3 (9) 21.0
 
Jan. 19, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 2.4 μg/m3 (10) 20.0
 
Jan. 19, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 3.0 μg/m3 (12) 20.0
 
Jan. 19, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 3.7 μg/m3 (15) 19.0
 
Jan. 19, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 3.0 μg/m3 (12) 21.0
 
Jan. 19, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 3.9 μg/m3 (16) 18.0
 
Jan. 19, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 2.2 μg/m3 (9) 21.0
 
Jan. 19, 2020, midnight N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 1.5 μg/m3 (6) 22.0
 
Jan. 18, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 0.8 μg/m3 (3) 22.0
 
Jan. 18, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 0.6 μg/m3 (2) 23.0