ID: 1999

AQSQID: 000101202

Site Name: Pitt Meadows

Added: April 21, 2020, 6:24 p.m.

Updated: May 24, 2022, 9:17 a.m.

Location: Pitt Meadows (Rivwood), CC

Reporting: True, Located: True

Current AQI: 11.0

Pitt Meadows (Rivwood) CC, CA: 49.24528, -122.70889

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 24, 2022, 7 a.m. N/A 0.1 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 11.0 ppb (11) N/A N/A 2.0 μg/m3 (9) 11.0
 
May 24, 2022, 6 a.m. N/A 0.1 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 15.0 ppb (14) N/A N/A 2.3 μg/m3 (10) 14.0
 
May 24, 2022, 5 a.m. N/A 0.5 ppb (1) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 17.0 ppb (16) N/A N/A 3.4 μg/m3 (15) 16.0
 
May 24, 2022, 5 a.m. N/A 0.5 ppb (1) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 17.0 ppb (16) N/A N/A 3.4 μg/m3 (15) 16.0
 
May 24, 2022, 4 a.m. N/A 0.2 ppb (1) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 4.4 μg/m3 (19) 23.0
 
May 24, 2022, 4 a.m. N/A 0.2 ppb (1) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 4.4 μg/m3 (19) 23.0
 
May 24, 2022, 3 a.m. N/A 0.8 ppb (1) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A 4.7 μg/m3 (20) 28.0
 
May 24, 2022, 3 a.m. N/A 0.8 ppb (1) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A 4.7 μg/m3 (20) 28.0
 
May 24, 2022, 2 a.m. N/A 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 36.0 ppb (34) N/A N/A 4.3 μg/m3 (18) 34.0
 
May 24, 2022, 2 a.m. N/A 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 36.0 ppb (34) N/A N/A 4.3 μg/m3 (18) 34.0
 
May 24, 2022, 1 a.m. N/A 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 40.0 ppb (38) N/A N/A 6.0 μg/m3 (25) 38.0
 
May 24, 2022, 1 a.m. N/A 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 40.0 ppb (38) N/A N/A 6.0 μg/m3 (25) 38.0
 
May 24, 2022, midnight N/A 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (37) N/A N/A 6.0 μg/m3 (25) 37.0
 
May 24, 2022, midnight N/A 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (37) N/A N/A 6.0 μg/m3 (25) 37.0
 
May 23, 2022, 11 p.m. N/A 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (35) N/A N/A 6.8 μg/m3 (29) 35.0
 
May 23, 2022, 11 p.m. N/A 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (35) N/A N/A 6.8 μg/m3 (29) 35.0
 
May 23, 2022, 8 p.m. N/A 1.6 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 9.4 μg/m3 (40) 40.0
 
May 23, 2022, 7 p.m. N/A 1.4 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 8.4 μg/m3 (36) 36.0
 
May 23, 2022, 6 p.m. N/A 1.7 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A 9.3 μg/m3 (39) 39.0
 
May 23, 2022, 3 p.m. N/A 1.8 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A 8.1 μg/m3 (34) 34.0
 
May 23, 2022, 2 p.m. N/A 1.3 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 6.9 μg/m3 (29) 29.0
 
May 23, 2022, 11 a.m. N/A 0.9 ppb (1) N/A 16.0 ppb (16) N/A 0.0 ppb (0) 6.0 ppb (6) N/A N/A 8.5 μg/m3 (36) 36.0
 
May 23, 2022, 10 a.m. N/A 0.1 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 17.0 ppb (16) N/A N/A 3.9 μg/m3 (17) 17.0
 
May 23, 2022, 10 a.m. N/A 0.1 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 17.0 ppb (16) N/A N/A 3.9 μg/m3 (17) 17.0
 
May 23, 2022, 9 a.m. N/A 0.1 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 14.0 ppb (13) N/A N/A 4.5 μg/m3 (19) 19.0
 
May 23, 2022, 3 a.m. N/A 0.2 ppb (1) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 8.8 μg/m3 (37) 37.0
 
May 23, 2022, 2 a.m. N/A 0.4 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 41.0 ppb (38) N/A N/A 8.4 μg/m3 (36) 38.0
 
May 23, 2022, 1 a.m. N/A 0.5 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 43.0 ppb (40) N/A N/A 8.2 μg/m3 (35) 40.0
 
May 23, 2022, midnight N/A 0.6 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 44.0 ppb (41) N/A N/A 8.7 μg/m3 (37) 41.0
 
May 22, 2022, 11 p.m. N/A 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 46.0 ppb (43) N/A N/A 9.1 μg/m3 (38) 43.0
 
May 22, 2022, 9 p.m. N/A 0.9 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 43.0 ppb (40) N/A N/A 8.6 μg/m3 (36) 40.0
 
May 22, 2022, 8 p.m. N/A 0.8 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 36.0 ppb (34) N/A N/A 7.7 μg/m3 (33) 34.0
 
May 22, 2022, 7 p.m. N/A 0.9 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 5.4 μg/m3 (23) 32.0
 
May 22, 2022, 6 p.m. N/A 0.8 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (27) N/A N/A 4.0 μg/m3 (17) 27.0
 
May 22, 2022, 5 p.m. N/A 1.2 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (25) N/A N/A 4.2 μg/m3 (18) 25.0
 
May 22, 2022, 4 p.m. N/A 1.3 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A 3.8 μg/m3 (16) 22.0
 
May 22, 2022, 3 p.m. N/A 1.3 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 20.0 ppb (19) N/A N/A 2.7 μg/m3 (12) 19.0
 
May 22, 2022, 2 p.m. N/A 10.7 ppb (11) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 10.0 ppb (10) N/A N/A 2.1 μg/m3 (9) 11.0
 
May 22, 2022, 1 p.m. N/A 5.5 ppb (6) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 6.0 ppb (6) N/A N/A 2.4 μg/m3 (10) 10.0
 
May 22, 2022, 1 p.m. N/A 5.5 ppb (6) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 6.0 ppb (6) N/A N/A 2.4 μg/m3 (10) 10.0
 
May 22, 2022, noon N/A 2.3 ppb (3) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 2.0 ppb (2) N/A N/A 2.3 μg/m3 (10) 10.0
 
May 22, 2022, 11 a.m. N/A 3.1 ppb (3) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A 2.6 μg/m3 (11) 11.0
 
May 22, 2022, 10 a.m. N/A 1.6 ppb (2) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 2.0 ppb (2) N/A N/A 2.5 μg/m3 (11) 11.0
 
May 22, 2022, 9 a.m. N/A 0.7 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 6.0 ppb (6) N/A N/A 2.6 μg/m3 (11) 11.0
 
May 22, 2022, 8 a.m. N/A 0.4 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 8.0 ppb (8) N/A N/A 2.4 μg/m3 (10) 10.0
 
May 22, 2022, 7 a.m. N/A 0.3 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 12.0 ppb (12) N/A N/A 1.9 μg/m3 (8) 12.0
 
May 22, 2022, 5 a.m. N/A 0.2 ppb (1) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 13.0 ppb (13) N/A N/A 6.1 μg/m3 (26) 26.0
 
May 22, 2022, 3 a.m. N/A 1.1 ppb (2) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 28.0 ppb (26) N/A N/A 7.5 μg/m3 (32) 32.0
 
May 22, 2022, 2 a.m. N/A 0.8 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 37.0 ppb (35) N/A N/A 6.5 μg/m3 (28) 35.0
 
May 22, 2022, 1 a.m. N/A 1.1 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 40.0 ppb (38) N/A N/A 7.1 μg/m3 (30) 38.0
 
May 22, 2022, midnight N/A 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 43.0 ppb (40) N/A N/A 7.2 μg/m3 (31) 40.0
 
May 21, 2022, 11 p.m. N/A 1.1 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 42.0 ppb (39) N/A N/A 7.6 μg/m3 (32) 39.0
 
May 21, 2022, 10 p.m. N/A 1.4 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 39.0 ppb (37) N/A N/A 8.0 μg/m3 (34) 37.0
 
May 21, 2022, 9 p.m. N/A 2.3 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 9.6 μg/m3 (40) 40.0
 
May 21, 2022, 8 p.m. N/A 2.3 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 32.0 ppb (30) N/A N/A 8.7 μg/m3 (37) 37.0
 
May 21, 2022, 7 p.m. N/A 3.4 ppb (4) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 29.0 ppb (27) N/A N/A 9.1 μg/m3 (38) 38.0
 
May 21, 2022, 6 p.m. N/A 5.3 ppb (5) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 9.3 μg/m3 (39) 39.0
 
May 21, 2022, 5 p.m. N/A 5.7 ppb (6) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 20.0 ppb (19) N/A N/A 8.0 μg/m3 (34) 34.0
 
May 21, 2022, 4 p.m. N/A 4.1 ppb (4) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 4.8 μg/m3 (20) 20.0
 
May 21, 2022, 3 p.m. N/A 4.6 ppb (5) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 13.0 ppb (13) N/A N/A 2.4 μg/m3 (10) 13.0
 
May 21, 2022, 2 p.m. N/A 21.5 ppb (21) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 6.0 ppb (6) N/A N/A 2.8 μg/m3 (12) 21.0
 
May 21, 2022, 1 p.m. N/A 8.8 ppb (9) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 3.0 ppb (3) N/A N/A 2.5 μg/m3 (11) 11.0
 
May 21, 2022, 1 p.m. N/A 8.8 ppb (9) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 3.0 ppb (3) N/A N/A 2.5 μg/m3 (11) 11.0
 
May 21, 2022, noon N/A 3.4 ppb (4) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A 2.2 μg/m3 (10) 10.0
 
May 21, 2022, 10 a.m. N/A 3.1 ppb (3) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A 2.6 μg/m3 (11) 12.0
 
May 21, 2022, 9 a.m. N/A 0.6 ppb (1) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 4.0 ppb (4) N/A N/A 2.8 μg/m3 (12) 12.0
 
May 21, 2022, 8 a.m. N/A 0.9 ppb (1) N/A 15.0 ppb (15) N/A 0.0 ppb (0) 4.0 ppb (4) N/A N/A 3.0 μg/m3 (13) 15.0
 
May 21, 2022, 4 a.m. N/A 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A 3.8 μg/m3 (16) 21.0
 
May 21, 2022, 3 a.m. N/A 0.1 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A 4.6 μg/m3 (20) 28.0
 
May 21, 2022, 2 a.m. N/A 0.3 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 4.7 μg/m3 (20) 29.0
 
May 21, 2022, 1 a.m. N/A 1.1 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 4.9 μg/m3 (21) 29.0
 
May 21, 2022, midnight N/A 1.7 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 4.1 μg/m3 (18) 32.0
 
May 20, 2022, 11 p.m. N/A 2.7 ppb (3) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 6.1 μg/m3 (26) 31.0
 
May 20, 2022, 10 p.m. N/A 4.2 ppb (4) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A 9.0 μg/m3 (38) 38.0
 
May 20, 2022, 9 p.m. N/A 6.8 ppb (7) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A 9.9 μg/m3 (42) 42.0
 
May 20, 2022, 7 p.m. N/A 5.8 ppb (6) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 26.0 ppb (25) N/A N/A 7.7 μg/m3 (33) 33.0
 
May 20, 2022, 6 p.m. N/A 5.3 ppb (5) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A 6.7 μg/m3 (28) 28.0
 
May 20, 2022, 5 p.m. N/A 4.7 ppb (5) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A 4.8 μg/m3 (20) 22.0
 
May 20, 2022, 4 p.m. N/A 6.9 ppb (7) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 3.4 μg/m3 (15) 17.0
 
May 20, 2022, 3 p.m. N/A 4.4 ppb (5) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 14.0 ppb (13) N/A N/A 2.0 μg/m3 (9) 13.0
 
May 20, 2022, 3 p.m. N/A 4.4 ppb (5) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 14.0 ppb (13) N/A N/A 2.0 μg/m3 (9) 13.0
 
May 20, 2022, 2 p.m. N/A 1.1 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 12.0 ppb (12) N/A N/A 1.9 μg/m3 (8) 12.0
 
May 20, 2022, 1 p.m. N/A 12.8 ppb (13) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 4.0 ppb (4) N/A N/A 2.3 μg/m3 (10) 13.0
 
May 20, 2022, 11 a.m. N/A 0.5 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 4.0 ppb (4) N/A N/A 2.2 μg/m3 (10) 10.0
 
May 20, 2022, 10 a.m. N/A 0.1 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 6.0 ppb (6) N/A N/A 2.0 μg/m3 (9) 9.0
 
May 20, 2022, 9 a.m. N/A 0.1 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 10.0 ppb (10) N/A N/A 2.1 μg/m3 (9) 10.0
 
May 20, 2022, 8 a.m. N/A 0.2 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 8.0 ppb (8) N/A N/A 2.2 μg/m3 (10) 10.0
 
May 20, 2022, 7 a.m. N/A 0.2 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 12.0 ppb (12) N/A N/A 2.3 μg/m3 (10) 12.0
 
May 20, 2022, 6 a.m. N/A 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 14.0 ppb (13) N/A N/A 2.4 μg/m3 (10) 13.0
 
May 20, 2022, 5 a.m. N/A 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 20.0 ppb (19) N/A N/A 4.7 μg/m3 (20) 20.0
 
May 20, 2022, 4 a.m. N/A 0.5 ppb (1) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A 4.9 μg/m3 (21) 21.0
 
May 20, 2022, 3 a.m. N/A 1.2 ppb (2) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A 4.6 μg/m3 (20) 24.0
 
May 20, 2022, 2 a.m. N/A 0.7 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 4.6 μg/m3 (20) 29.0
 
May 20, 2022, 1 a.m. N/A 1.2 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 4.3 μg/m3 (18) 32.0
 
May 20, 2022, 1 a.m. N/A 1.2 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 4.3 μg/m3 (18) 32.0
 
May 20, 2022, midnight N/A 1.7 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 5.3 μg/m3 (23) 31.0
 
May 20, 2022, midnight N/A 1.7 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 5.3 μg/m3 (23) 31.0
 
May 19, 2022, 11 p.m. N/A 1.6 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 35.0 ppb (33) N/A N/A 6.0 μg/m3 (25) 33.0
 
May 19, 2022, 10 p.m. N/A 1.7 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 6.3 μg/m3 (27) 32.0
 
May 19, 2022, 9 p.m. N/A 2.4 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 32.0 ppb (30) N/A N/A 6.1 μg/m3 (26) 30.0
 
May 19, 2022, 8 p.m. N/A 2.2 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 32.0 ppb (30) N/A N/A 5.1 μg/m3 (22) 30.0
 
May 19, 2022, 7 p.m. N/A 1.5 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 32.0 ppb (30) N/A N/A 5.3 μg/m3 (23) 30.0
 
May 19, 2022, 7 p.m. N/A 1.5 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 32.0 ppb (30) N/A N/A 5.3 μg/m3 (23) 30.0
 
May 19, 2022, 4 p.m. N/A 4.2 ppb (4) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 3.6 μg/m3 (16) 23.0
 
May 19, 2022, 2 p.m. N/A 5.1 ppb (5) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 15.0 ppb (14) N/A N/A 2.5 μg/m3 (11) 14.0
 
May 19, 2022, 6 a.m. N/A 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 4.7 μg/m3 (20) 31.0
 
May 19, 2022, 5 a.m. N/A 0.2 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 36.0 ppb (34) N/A N/A 7.3 μg/m3 (31) 34.0
 
May 19, 2022, 4 a.m. N/A 0.3 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 38.0 ppb (36) N/A N/A 9.1 μg/m3 (38) 38.0
 
May 19, 2022, 3 a.m. N/A 0.4 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 38.0 ppb (36) N/A N/A 8.9 μg/m3 (38) 38.0
 
May 19, 2022, 2 a.m. N/A 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 40.0 ppb (38) N/A N/A 9.7 μg/m3 (41) 41.0
 
May 19, 2022, 1 a.m. N/A 0.8 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 41.0 ppb (38) N/A N/A 12.4 μg/m3 (52) 52.0
 
May 18, 2022, 11 p.m. N/A 1.5 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 42.0 ppb (39) N/A N/A 13.8 μg/m3 (55) 55.0
 
May 18, 2022, 10 p.m. N/A 1.9 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 42.0 ppb (39) N/A N/A 4.2 μg/m3 (18) 39.0
 
May 18, 2022, 9 p.m. N/A 2.0 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 41.0 ppb (38) N/A N/A 1.8 μg/m3 (8) 38.0
 
May 18, 2022, 8 p.m. N/A 1.7 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 41.0 ppb (38) N/A N/A 1.6 μg/m3 (7) 38.0
 
May 18, 2022, 7 p.m. N/A 1.4 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 43.0 ppb (40) N/A N/A 2.0 μg/m3 (9) 40.0
 
May 18, 2022, 5 p.m. N/A 1.7 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 37.0 ppb (35) N/A N/A 1.9 μg/m3 (8) 35.0
 
May 18, 2022, 4 p.m. N/A 1.6 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 1.9 μg/m3 (8) 32.0
 
May 18, 2022, 4 p.m. N/A 1.6 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 1.9 μg/m3 (8) 32.0
 
May 18, 2022, 3 p.m. N/A 1.6 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 2.4 μg/m3 (10) 32.0
 
May 18, 2022, 3 p.m. N/A 1.6 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 2.4 μg/m3 (10) 32.0
 
May 18, 2022, 1 p.m. N/A 0.2 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 2.3 μg/m3 (10) 29.0
 
May 18, 2022, 1 p.m. N/A 0.2 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 2.3 μg/m3 (10) 29.0
 
May 18, 2022, 1 p.m. N/A 0.2 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 2.3 μg/m3 (10) 29.0
 
May 18, 2022, 1 p.m. N/A 0.2 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 2.3 μg/m3 (10) 29.0
 
May 18, 2022, 1 p.m. N/A 0.2 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 2.3 μg/m3 (10) 29.0
 
May 18, 2022, 1 p.m. N/A 0.2 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 2.3 μg/m3 (10) 29.0
 
May 18, 2022, noon N/A 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 2.1 μg/m3 (9) 31.0
 
May 18, 2022, noon N/A 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 2.1 μg/m3 (9) 31.0
 
May 18, 2022, 11 a.m. N/A 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 2.1 μg/m3 (9) 31.0
 
May 18, 2022, 10 a.m. N/A 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 2.1 μg/m3 (9) 29.0
 
May 18, 2022, 2 a.m. N/A 0.6 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 39.0 ppb (37) N/A N/A 5.8 μg/m3 (25) 37.0
 
May 18, 2022, 1 a.m. N/A 0.4 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 43.0 ppb (40) N/A N/A 5.2 μg/m3 (22) 40.0
 
May 18, 2022, midnight N/A 0.7 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 44.0 ppb (41) N/A N/A 5.1 μg/m3 (22) 41.0
 
May 17, 2022, 11 p.m. N/A 0.9 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 44.0 ppb (41) N/A N/A 6.0 μg/m3 (25) 41.0
 
May 17, 2022, 10 p.m. N/A 1.4 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 44.0 ppb (41) N/A N/A 6.1 μg/m3 (26) 41.0
 
May 17, 2022, 9 p.m. N/A 1.2 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 44.0 ppb (41) N/A N/A 5.6 μg/m3 (24) 41.0
 
May 17, 2022, 9 p.m. N/A 1.2 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 44.0 ppb (41) N/A N/A 5.6 μg/m3 (24) 41.0
 
May 17, 2022, 8 p.m. N/A 1.4 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 43.0 ppb (40) N/A N/A 5.8 μg/m3 (25) 40.0
 
May 17, 2022, 7 p.m. N/A 6.9 ppb (7) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 39.0 ppb (37) N/A N/A 6.3 μg/m3 (27) 37.0
 
May 17, 2022, 7 p.m. N/A 6.9 ppb (7) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 39.0 ppb (37) N/A N/A 6.3 μg/m3 (27) 37.0
 
May 17, 2022, 6 p.m. N/A 1.4 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 40.0 ppb (38) N/A N/A 5.0 μg/m3 (21) 38.0
 
May 17, 2022, 6 p.m. N/A 1.4 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 40.0 ppb (38) N/A N/A 5.0 μg/m3 (21) 38.0
 
May 17, 2022, 5 p.m. N/A 2.2 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 36.0 ppb (34) N/A N/A 4.3 μg/m3 (18) 34.0
 
May 17, 2022, 5 p.m. N/A 2.2 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 36.0 ppb (34) N/A N/A 4.3 μg/m3 (18) 34.0
 
May 17, 2022, 4 p.m. N/A 2.5 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 3.9 μg/m3 (17) 32.0
 
May 17, 2022, 4 p.m. N/A 2.5 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 3.9 μg/m3 (17) 32.0
 
May 17, 2022, 3 p.m. N/A 0.5 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (34) N/A N/A 4.0 μg/m3 (17) 34.0
 
May 17, 2022, 3 p.m. N/A 0.5 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (34) N/A N/A 4.0 μg/m3 (17) 34.0
 
May 17, 2022, 2 p.m. N/A 0.7 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 28.0 ppb (26) N/A N/A 4.5 μg/m3 (19) 26.0
 
May 17, 2022, noon N/A 0.1 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 13.0 ppb (13) N/A N/A 4.5 μg/m3 (19) 19.0
 
May 17, 2022, noon N/A 0.1 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 13.0 ppb (13) N/A N/A 4.5 μg/m3 (19) 19.0
 
May 17, 2022, 10 a.m. N/A 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 20.0 ppb (19) N/A N/A 4.5 μg/m3 (19) 19.0
 
May 17, 2022, 10 a.m. N/A 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 20.0 ppb (19) N/A N/A 4.5 μg/m3 (19) 19.0
 
May 17, 2022, 9 a.m. N/A 0.6 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 4.6 μg/m3 (20) 20.0
 
May 17, 2022, 8 a.m. N/A 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A 4.5 μg/m3 (19) 24.0
 
May 17, 2022, 5 a.m. N/A 0.6 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 5.0 μg/m3 (21) 23.0
 
May 17, 2022, 4 a.m. N/A 0.1 ppb (1) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A 4.9 μg/m3 (21) 24.0
 
May 17, 2022, 3 a.m. N/A 0.3 ppb (1) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 4.5 μg/m3 (19) 29.0
 
May 17, 2022, 2 a.m. N/A 1.4 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 37.0 ppb (35) N/A N/A 3.6 μg/m3 (16) 35.0
 
May 17, 2022, 1 a.m. N/A 6.9 ppb (7) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 37.0 ppb (35) N/A N/A 3.3 μg/m3 (14) 35.0
 
May 17, 2022, midnight N/A 2.5 ppb (3) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 41.0 ppb (38) N/A N/A 2.9 μg/m3 (13) 38.0
 
May 16, 2022, 11 p.m. N/A 1.6 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 43.0 ppb (40) N/A N/A 2.6 μg/m3 (11) 40.0
 
May 16, 2022, 10 p.m. N/A 1.5 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 42.0 ppb (39) N/A N/A 2.3 μg/m3 (10) 39.0
 
May 16, 2022, 9 p.m. N/A 1.7 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 39.0 ppb (37) N/A N/A 2.4 μg/m3 (10) 37.0
 
May 16, 2022, 8 p.m. N/A 2.0 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 41.0 ppb (38) N/A N/A 2.1 μg/m3 (9) 38.0
 
May 16, 2022, 7 p.m. N/A 2.8 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 38.0 ppb (36) N/A N/A 2.0 μg/m3 (9) 36.0
 
May 16, 2022, 6 p.m. N/A 2.8 ppb (3) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 36.0 ppb (34) N/A N/A 2.6 μg/m3 (11) 34.0