AQSQID: 000101301

Site Name: Langley

Location: Langley (237 St), CC

Reporting: True, Located: True

Current AQI: 25.0

Langley (237 St) CC, CA: 49.09556, -122.56694

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
April 1, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 1.1 μg/m3 (5) 25.0
 
April 1, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 1.4 μg/m3 (6) 25.0
 
April 1, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 1.3 μg/m3 (5) 23.0
 
April 1, 2020, 4 p.m. 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
 
April 1, 2020, 3 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
 
April 1, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 2.5 μg/m3 (10) 20.0
 
April 1, 2020, 1 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
 
April 1, 2020, noon 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
 
April 1, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 1.5 μg/m3 (6) 25.0
 
April 1, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 1.0 μg/m3 (4) 28.0
 
April 1, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 0.8 μg/m3 (3) 29.0
 
April 1, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 0.7 μg/m3 (3) 30.0
 
April 1, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 2.6 μg/m3 (11) 25.0
 
April 1, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 1.4 μg/m3 (6) 24.0
 
April 1, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 1.7 μg/m3 (7) 24.0
 
April 1, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 2.0 μg/m3 (8) 24.0
 
April 1, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 1.1 μg/m3 (5) 29.0
 
April 1, 2020, midnight N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 0.8 μg/m3 (3) 30.0
 
March 31, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 0.9 μg/m3 (4) 31.0
 
March 31, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 0.8 μg/m3 (3) 32.0
 
March 31, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 1.1 μg/m3 (5) 30.0
 
March 31, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 1.1 μg/m3 (5) 30.0
 
March 31, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 0.9 μg/m3 (4) 29.0
 
March 31, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 0.9 μg/m3 (4) 28.0
 
March 31, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 0.8 μg/m3 (3) 27.0
 
March 31, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 1.7 μg/m3 (7) 22.0
 
March 31, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A N/A 5.1 μg/m3 (21) 21.0
 
March 31, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A N/A 6.0 μg/m3 (25) 25.0
 
March 31, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A N/A 5.9 μg/m3 (25) 25.0
 
March 31, 2020, noon N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 4.0 μg/m3 (17) 17.0
 
March 31, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 2.9 μg/m3 (12) 18.0
 
March 31, 2020, 10 a.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
 
March 31, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 2.9 μg/m3 (12) 18.0
 
March 31, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A N/A 3.6 μg/m3 (15) 15.0
 
March 31, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A N/A 12.1 μg/m3 (50) 50.0
 
March 31, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 8.2 μg/m3 (34) 34.0
 
March 31, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 9.5 μg/m3 (40) 40.0
 
March 31, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 3.7 μg/m3 (15) 22.0
 
March 31, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 4.5 μg/m3 (19) 22.0
 
March 31, 2020, 2 a.m. 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
 
March 31, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 0.9 μg/m3 (4) 31.0
 
March 31, 2020, midnight N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 0.8 μg/m3 (3) 31.0
 
March 30, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 1.7 μg/m3 (7) 33.0
 
March 30, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 1.0 μg/m3 (4) 33.0
 
March 30, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 0.7 μg/m3 (3) 31.0
 
March 30, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 1.0 μg/m3 (4) 30.0
 
March 30, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 1.3 μg/m3 (5) 29.0
 
March 30, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 1.3 μg/m3 (5) 28.0
 
March 30, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 1.2 μg/m3 (5) 28.0
 
March 30, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 1.8 μg/m3 (8) 28.0
 
March 30, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 2.5 μg/m3 (10) 28.0
 
March 30, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 1.5 μg/m3 (6) 30.0
 
March 30, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 0.7 μg/m3 (3) 29.0
 
March 30, 2020, noon N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 0.1 μg/m3 (0) 28.0
 
March 30, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 0.4 μg/m3 (2) 25.0
 
March 30, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 0.7 μg/m3 (3) 24.0
 
March 30, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 0.8 μg/m3 (3) 22.0
 
March 30, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 1.2 μg/m3 (5) 23.0
 
March 30, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 0.6 μg/m3 (2) 27.0
 
March 30, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 1.1 μg/m3 (5) 27.0
 
March 30, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 1.4 μg/m3 (6) 27.0
 
March 30, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 1.9 μg/m3 (8) 28.0
 
March 30, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 2.2 μg/m3 (9) 28.0
 
March 30, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 2.6 μg/m3 (11) 26.0
 
March 30, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 3.2 μg/m3 (13) 29.0
 
March 30, 2020, midnight N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 1.8 μg/m3 (8) 30.0
 
March 29, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 1.6 μg/m3 (7) 32.0
 
March 29, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 1.7 μg/m3 (7) 32.0
 
March 29, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 1.2 μg/m3 (5) 33.0
 
March 29, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 3.1 μg/m3 (13) 33.0
 
March 29, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 5.6 μg/m3 (23) 33.0
 
March 29, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 1.2 μg/m3 (5) 32.0
 
March 29, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 0.5 μg/m3 (2) 30.0
 
March 29, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 0.2 μg/m3 (1) 26.0
 
March 29, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 0.0 μg/m3 (0) 25.0
 
March 29, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 0.0 μg/m3 (0) 25.0
 
March 29, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 0.0 μg/m3 (0) 23.0
 
March 29, 2020, noon N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 0.0 μg/m3 (0) 19.0
 
March 29, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 0.6 μg/m3 (2) 20.0
 
March 29, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 0.0 μg/m3 (0) 22.0
 
March 29, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 0.0 μg/m3 (0) 24.0
 
March 29, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 0.0 μg/m3 (0) 24.0
 
March 29, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 0.0 μg/m3 (0) 22.0
 
March 29, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 0.0 μg/m3 (0) 22.0
 
March 29, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 0.2 μg/m3 (1) 22.0
 
March 29, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 0.1 μg/m3 (0) 23.0
 
March 29, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 0.5 μg/m3 (2) 23.0
 
March 29, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 1.1 μg/m3 (5) 22.0
 
March 29, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 0.7 μg/m3 (3) 24.0
 
March 29, 2020, midnight N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 0.6 μg/m3 (2) 25.0
 
March 28, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 0.5 μg/m3 (2) 27.0
 
March 28, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 0.3 μg/m3 (1) 27.0
 
March 28, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 0.2 μg/m3 (1) 27.0
 
March 28, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 0.2 μg/m3 (1) 27.0
 
March 28, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 0.1 μg/m3 (0) 27.0
 
March 28, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 0.0 μg/m3 (0) 26.0
 
March 28, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 0.2 μg/m3 (1) 26.0
 
March 28, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 0.4 μg/m3 (2) 25.0
 
March 28, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 0.4 μg/m3 (2) 23.0
 
March 28, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 0.4 μg/m3 (2) 22.0
 
March 28, 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
 
March 28, 2020, noon 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
 
March 28, 2020, 11 a.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
 
March 28, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 1.7 μg/m3 (7) 22.0
 
March 28, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 3.1 μg/m3 (13) 18.0
 
March 28, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 5.7 μg/m3 (24) 24.0
 
March 28, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 6.8 μg/m3 (28) 28.0
 
March 28, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 14.8 μg/m3 (56) 56.0
 
March 28, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 13.8 μg/m3 (54) 54.0
 
March 28, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 14.2 μg/m3 (55) 55.0
 
March 28, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 11.6 μg/m3 (48) 48.0
 
March 28, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 5.9 μg/m3 (25) 27.0
 
March 28, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 5.4 μg/m3 (23) 28.0
 
March 28, 2020, midnight N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 5.2 μg/m3 (22) 30.0
 
March 27, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 4.8 μg/m3 (20) 31.0
 
March 27, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 4.7 μg/m3 (20) 31.0
 
March 27, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 4.2 μg/m3 (18) 30.0
 
March 27, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 4.3 μg/m3 (18) 29.0
 
March 27, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 4.9 μg/m3 (20) 28.0
 
March 27, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 5.7 μg/m3 (24) 26.0
 
March 27, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 6.8 μg/m3 (28) 28.0
 
March 27, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 7.5 μg/m3 (31) 31.0
 
March 27, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 8.3 μg/m3 (35) 35.0
 
March 27, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 9.7 μg/m3 (40) 40.0
 
March 27, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A N/A 10.1 μg/m3 (42) 42.0
 
March 27, 2020, noon N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 9.5 μg/m3 (40) 40.0
 
March 27, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 9.9 μg/m3 (41) 41.0
 
March 27, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 10.5 μg/m3 (44) 44.0
 
March 27, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 10.7 μg/m3 (45) 45.0
 
March 27, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 10.5 μg/m3 (44) 44.0
 
March 27, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 8.8 μg/m3 (37) 37.0
 
March 27, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 9.1 μg/m3 (38) 38.0
 
March 27, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 8.3 μg/m3 (35) 35.0
 
March 27, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 8.3 μg/m3 (35) 35.0
 
March 27, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 8.1 μg/m3 (34) 34.0
 
March 27, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 7.4 μg/m3 (31) 31.0
 
March 27, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 7.1 μg/m3 (30) 30.0
 
March 27, 2020, midnight N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 6.6 μg/m3 (28) 32.0
 
March 26, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 6.0 μg/m3 (25) 28.0
 
March 26, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 4.7 μg/m3 (20) 27.0
 
March 26, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 4.0 μg/m3 (17) 25.0
 
March 26, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 4.2 μg/m3 (18) 22.0
 
March 26, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 3.7 μg/m3 (15) 24.0
 
March 26, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 3.6 μg/m3 (15) 23.0
 
March 26, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 4.0 μg/m3 (17) 23.0
 
March 26, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 4.4 μg/m3 (18) 22.0
 
March 26, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 5.8 μg/m3 (24) 24.0
 
March 26, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 5.6 μg/m3 (23) 23.0
 
March 26, 2020, 1 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
 
March 26, 2020, noon N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 3.5 μg/m3 (15) 18.0
 
March 26, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 3.2 μg/m3 (13) 20.0
 
March 26, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 5.7 μg/m3 (24) 24.0
 
March 26, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 11.6 μg/m3 (48) 48.0
 
March 26, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A N/A 11.2 μg/m3 (47) 47.0
 
March 26, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) N/A N/A 13.3 μg/m3 (53) 53.0
 
March 26, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A N/A 10.7 μg/m3 (45) 45.0
 
March 26, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 8.5 μg/m3 (35) 35.0
 
March 26, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 7.8 μg/m3 (32) 32.0
 
March 26, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 5.7 μg/m3 (24) 24.0
 
March 26, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 1.9 μg/m3 (8) 26.0
 
March 26, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 1.6 μg/m3 (7) 26.0
 
March 26, 2020, midnight N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 1.4 μg/m3 (6) 28.0
 
March 25, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 1.5 μg/m3 (6) 29.0
 
March 25, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 2.2 μg/m3 (9) 25.0
 
March 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 3.0 μg/m3 (12) 22.0
 
March 25, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 3.5 μg/m3 (15) 21.0
 
March 25, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 4.6 μg/m3 (19) 19.0
 
March 25, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A N/A 16.0