ID: 1996

AQSQID: 000100132

Site Name: Mahon Park

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

Updated: May 25, 2022, 8:56 p.m.

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
May 25, 2022, 7 p.m. N/A 1.9 ppb (2) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 22.0 ppb (21) 0.16 ppb (3) N/A 5.2 μg/m3 (22) 22.0
 
May 25, 2022, 6 p.m. N/A 2.3 ppb (3) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 23.0 ppb (22) 0.16 ppb (3) N/A 5.9 μg/m3 (25) 25.0
 
May 25, 2022, 6 p.m. N/A 2.3 ppb (3) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 23.0 ppb (22) 0.16 ppb (3) N/A 5.9 μg/m3 (25) 25.0
 
May 25, 2022, 5 p.m. N/A 2.2 ppb (3) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 24.0 ppb (23) 0.17 ppb (3) N/A 6.1 μg/m3 (26) 26.0
 
May 25, 2022, 5 p.m. N/A 2.2 ppb (3) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 24.0 ppb (23) 0.17 ppb (3) N/A 6.1 μg/m3 (26) 26.0
 
May 25, 2022, 4 p.m. N/A 1.0 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 26.0 ppb (25) 0.16 ppb (3) N/A 4.3 μg/m3 (18) 25.0
 
May 25, 2022, 3 p.m. N/A 0.8 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 22.0 ppb (21) 0.17 ppb (3) N/A 2.9 μg/m3 (13) 21.0
 
May 25, 2022, 3 p.m. N/A 0.8 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 22.0 ppb (21) 0.17 ppb (3) N/A 2.9 μg/m3 (13) 21.0
 
May 25, 2022, 2 p.m. N/A 2.3 ppb (3) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 14.0 ppb (13) 0.19 ppb (3) N/A 3.3 μg/m3 (14) 14.0
 
May 25, 2022, 1 p.m. N/A 0.4 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 20.0 ppb (19) 0.16 ppb (3) N/A 2.9 μg/m3 (13) 19.0
 
May 25, 2022, 1 p.m. N/A 0.4 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 20.0 ppb (19) 0.16 ppb (3) N/A 2.9 μg/m3 (13) 19.0
 
May 25, 2022, 9 a.m. N/A 0.1 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 24.0 ppb (23) 0.13 ppb (2) N/A 3.8 μg/m3 (16) 23.0
 
May 25, 2022, 5 a.m. N/A 0.1 ppb (1) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 26.0 ppb (25) 0.2 ppb (3) N/A 4.0 μg/m3 (17) 25.0
 
May 25, 2022, 4 a.m. N/A 0.2 ppb (1) N/A 14.0 ppb (14) N/A 1.0 ppb (2) 20.0 ppb (19) 0.2 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
May 25, 2022, 1 a.m. N/A 1.0 ppb (1) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 25.0 ppb (24) 0.17 ppb (3) N/A 6.6 μg/m3 (28) 28.0
 
May 25, 2022, midnight N/A 1.3 ppb (2) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 27.0 ppb (25) 0.16 ppb (3) N/A 5.4 μg/m3 (23) 25.0
 
May 24, 2022, 9 p.m. N/A 1.8 ppb (2) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 26.0 ppb (25) 0.14 ppb (2) N/A 4.2 μg/m3 (18) 25.0
 
May 24, 2022, 8 p.m. N/A 3.2 ppb (4) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 23.0 ppb (22) 0.16 ppb (3) N/A 5.1 μg/m3 (22) 22.0
 
May 24, 2022, 7 p.m. N/A 3.6 ppb (4) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 22.0 ppb (21) 0.16 ppb (3) N/A 5.2 μg/m3 (22) 22.0
 
May 24, 2022, 6 p.m. N/A 3.3 ppb (4) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 21.0 ppb (20) 0.16 ppb (3) N/A 4.8 μg/m3 (20) 20.0
 
May 24, 2022, 5 p.m. N/A 4.5 ppb (5) N/A 12.0 ppb (12) N/A 1.0 ppb (2) 18.0 ppb (17) 0.18 ppb (3) N/A 5.5 μg/m3 (23) 23.0
 
May 24, 2022, 4 p.m. N/A 2.0 ppb (2) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 20.0 ppb (19) 0.16 ppb (3) N/A 4.0 μg/m3 (17) 19.0
 
May 24, 2022, 3 p.m. N/A 1.8 ppb (2) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 16.0 ppb (15) 0.18 ppb (3) N/A 3.8 μg/m3 (16) 16.0
 
May 24, 2022, 2 p.m. N/A 1.3 ppb (2) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 13.0 ppb (13) 0.18 ppb (3) N/A 3.6 μg/m3 (16) 16.0
 
May 24, 2022, 1 p.m. N/A 1.6 ppb (2) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 9.0 ppb (9) 0.22 ppb (3) N/A 3.5 μg/m3 (15) 15.0
 
May 24, 2022, noon N/A 0.2 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 17.0 ppb (16) 0.16 ppb (3) N/A 3.4 μg/m3 (15) 16.0
 
May 24, 2022, 10 a.m. N/A 0.1 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 19.0 ppb (18) 0.15 ppb (2) N/A 3.5 μg/m3 (15) 18.0
 
May 24, 2022, 9 a.m. N/A 0.2 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 20.0 ppb (19) 0.14 ppb (2) N/A 3.7 μg/m3 (16) 19.0
 
May 24, 2022, 8 a.m. N/A 0.2 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 21.0 ppb (20) 0.16 ppb (3) N/A 4.2 μg/m3 (18) 20.0
 
May 24, 2022, 6 a.m. N/A 0.1 ppb (1) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 25.0 ppb (24) 0.18 ppb (3) N/A 5.1 μg/m3 (22) 24.0
 
May 24, 2022, 5 a.m. N/A 0.2 ppb (1) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 26.0 ppb (25) 0.18 ppb (3) N/A 5.4 μg/m3 (23) 25.0
 
May 24, 2022, 5 a.m. N/A 0.2 ppb (1) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 26.0 ppb (25) 0.18 ppb (3) N/A 5.4 μg/m3 (23) 25.0
 
May 24, 2022, 4 a.m. N/A 0.1 ppb (1) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 37.0 ppb (35) 0.18 ppb (3) N/A 4.7 μg/m3 (20) 35.0
 
May 24, 2022, 4 a.m. N/A 0.1 ppb (1) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 37.0 ppb (35) 0.18 ppb (3) N/A 4.7 μg/m3 (20) 35.0
 
May 24, 2022, 3 a.m. N/A 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 45.0 ppb (42) 0.15 ppb (2) N/A 4.5 μg/m3 (19) 42.0
 
May 24, 2022, 3 a.m. N/A 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 45.0 ppb (42) 0.15 ppb (2) N/A 4.5 μg/m3 (19) 42.0
 
May 24, 2022, 2 a.m. N/A 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 44.0 ppb (41) 0.14 ppb (2) N/A 4.3 μg/m3 (18) 41.0
 
May 24, 2022, 2 a.m. N/A 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 44.0 ppb (41) 0.14 ppb (2) N/A 4.3 μg/m3 (18) 41.0
 
May 24, 2022, 1 a.m. N/A 0.4 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 41.0 ppb (38) 0.14 ppb (2) N/A 4.1 μg/m3 (18) 38.0
 
May 24, 2022, 1 a.m. N/A 0.4 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 41.0 ppb (38) 0.14 ppb (2) N/A 4.1 μg/m3 (18) 38.0
 
May 24, 2022, midnight N/A 0.7 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 38.0 ppb (36) 0.15 ppb (2) N/A 4.1 μg/m3 (18) 36.0
 
May 24, 2022, midnight N/A 0.7 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 38.0 ppb (36) 0.15 ppb (2) N/A 4.1 μg/m3 (18) 36.0
 
May 23, 2022, 11 p.m. N/A 1.5 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 35.0 ppb (33) 0.16 ppb (3) N/A 4.9 μg/m3 (21) 33.0
 
May 23, 2022, 11 p.m. N/A 1.5 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 35.0 ppb (33) 0.16 ppb (3) N/A 4.9 μg/m3 (21) 33.0
 
May 23, 2022, 8 p.m. N/A 1.8 ppb (2) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 30.0 ppb (28) 0.14 ppb (2) N/A 5.8 μg/m3 (25) 28.0
 
May 23, 2022, 7 p.m. N/A 2.2 ppb (3) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 31.0 ppb (29) 0.13 ppb (2) N/A 5.1 μg/m3 (22) 29.0
 
May 23, 2022, 6 p.m. N/A 3.7 ppb (4) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 24.0 ppb (23) 0.15 ppb (2) N/A 8.0 μg/m3 (34) 34.0
 
May 23, 2022, 3 p.m. N/A 1.2 ppb (2) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 23.0 ppb (22) 0.16 ppb (3) N/A 6.8 μg/m3 (29) 29.0
 
May 23, 2022, 2 p.m. N/A 0.9 ppb (1) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 22.0 ppb (21) 0.17 ppb (3) N/A 6.5 μg/m3 (28) 28.0
 
May 23, 2022, 11 a.m. N/A 0.1 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 23.0 ppb (22) 0.16 ppb (3) N/A 4.3 μg/m3 (18) 22.0
 
May 23, 2022, 10 a.m. N/A 0.1 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 24.0 ppb (23) 0.14 ppb (2) N/A 4.0 μg/m3 (17) 23.0
 
May 23, 2022, 10 a.m. N/A 0.1 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 24.0 ppb (23) 0.14 ppb (2) N/A 4.0 μg/m3 (17) 23.0
 
May 23, 2022, 9 a.m. N/A 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 24.0 ppb (23) 0.13 ppb (2) N/A 3.5 μg/m3 (15) 23.0
 
May 23, 2022, 3 a.m. N/A 0.1 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 40.0 ppb (38) 0.16 ppb (3) N/A 2.7 μg/m3 (12) 38.0
 
May 23, 2022, 2 a.m. N/A 0.3 ppb (1) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 38.0 ppb (36) 0.16 ppb (3) N/A 3.4 μg/m3 (15) 36.0
 
May 23, 2022, 1 a.m. N/A 1.6 ppb (2) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 32.0 ppb (30) 0.17 ppb (3) N/A 4.2 μg/m3 (18) 30.0
 
May 23, 2022, midnight N/A 2.2 ppb (3) N/A 12.0 ppb (12) N/A 1.0 ppb (2) 34.0 ppb (32) 0.16 ppb (3) N/A 3.5 μg/m3 (15) 32.0
 
May 22, 2022, 11 p.m. N/A 1.3 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 38.0 ppb (36) 0.15 ppb (2) N/A 4.1 μg/m3 (18) 36.0
 
May 22, 2022, 9 p.m. N/A 1.2 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 33.0 ppb (31) 0.15 ppb (2) N/A 4.7 μg/m3 (20) 31.0
 
May 22, 2022, 8 p.m. N/A 2.6 ppb (3) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 27.0 ppb (25) 0.17 ppb (3) N/A 5.1 μg/m3 (22) 25.0
 
May 22, 2022, 7 p.m. N/A 8.8 ppb (9) N/A 14.0 ppb (14) N/A 1.0 ppb (2) 19.0 ppb (18) 0.18 ppb (3) N/A 6.2 μg/m3 (26) 26.0
 
May 22, 2022, 6 p.m. N/A 5.0 ppb (5) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 21.0 ppb (20) 0.17 ppb (3) N/A 5.4 μg/m3 (23) 23.0
 
May 22, 2022, 5 p.m. N/A 7.5 ppb (8) N/A 12.0 ppb (12) N/A 1.0 ppb (2) 18.0 ppb (17) 0.16 ppb (3) N/A 4.9 μg/m3 (21) 21.0
 
May 22, 2022, 4 p.m. N/A 21.0 ppb (20) N/A 20.0 ppb (19) N/A 1.0 ppb (2) 9.0 ppb (9) 0.17 ppb (3) N/A 5.6 μg/m3 (24) 24.0
 
May 22, 2022, 3 p.m. N/A 14.4 ppb (14) N/A 16.0 ppb (16) N/A 1.0 ppb (2) 9.0 ppb (9) 0.17 ppb (3) N/A 5.6 μg/m3 (24) 24.0
 
May 22, 2022, 2 p.m. N/A 6.5 ppb (7) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 11.0 ppb (11) 0.15 ppb (2) N/A 4.5 μg/m3 (19) 19.0
 
May 22, 2022, 1 p.m. N/A 8.3 ppb (8) N/A 19.0 ppb (18) N/A 1.0 ppb (2) 5.0 ppb (5) 0.2 ppb (3) N/A 9.8 μg/m3 (41) 41.0
 
May 22, 2022, 1 p.m. N/A 8.3 ppb (8) N/A 19.0 ppb (18) N/A 1.0 ppb (2) 5.0 ppb (5) 0.2 ppb (3) N/A 9.8 μg/m3 (41) 41.0
 
May 22, 2022, noon N/A 1.6 ppb (2) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 16.0 ppb (15) 0.15 ppb (2) N/A 5.5 μg/m3 (23) 23.0
 
May 22, 2022, 11 a.m. N/A 0.1 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 18.0 ppb (17) 0.15 ppb (2) N/A 4.3 μg/m3 (18) 18.0
 
May 22, 2022, 10 a.m. N/A 0.1 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 19.0 ppb (18) 0.18 ppb (3) N/A 4.8 μg/m3 (20) 20.0
 
May 22, 2022, 9 a.m. N/A 0.1 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 23.0 ppb (22) 0.16 ppb (3) N/A 4.8 μg/m3 (20) 22.0
 
May 22, 2022, 8 a.m. N/A 0.1 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 23.0 ppb (22) 0.16 ppb (3) N/A 4.6 μg/m3 (20) 22.0
 
May 22, 2022, 7 a.m. N/A 0.1 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 20.0 ppb (19) 0.22 ppb (3) N/A 5.9 μg/m3 (25) 25.0
 
May 22, 2022, 5 a.m. N/A 0.1 ppb (1) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 22.0 ppb (21) 0.22 ppb (3) N/A 5.3 μg/m3 (23) 23.0
 
May 22, 2022, 3 a.m. N/A 0.3 ppb (1) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 31.0 ppb (29) 0.18 ppb (3) N/A 5.6 μg/m3 (24) 29.0
 
May 22, 2022, 2 a.m. N/A 5.6 ppb (6) N/A 24.0 ppb (23) N/A 1.0 ppb (2) 22.0 ppb (21) 0.17 ppb (3) N/A 5.4 μg/m3 (23) 23.0
 
May 22, 2022, 1 a.m. N/A 0.4 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 39.0 ppb (37) 0.16 ppb (3) N/A 4.3 μg/m3 (18) 37.0
 
May 22, 2022, midnight N/A 1.2 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 36.0 ppb (34) 0.15 ppb (2) N/A 4.3 μg/m3 (18) 34.0
 
May 21, 2022, 11 p.m. N/A 0.8 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 37.0 ppb (35) 0.15 ppb (2) N/A 3.7 μg/m3 (16) 35.0
 
May 21, 2022, 10 p.m. N/A 0.5 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 37.0 ppb (35) 0.14 ppb (2) N/A 3.7 μg/m3 (16) 35.0
 
May 21, 2022, 9 p.m. N/A 0.8 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 34.0 ppb (32) 0.15 ppb (2) N/A 4.7 μg/m3 (20) 32.0
 
May 21, 2022, 8 p.m. N/A 1.2 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 29.0 ppb (27) 0.15 ppb (2) N/A 5.2 μg/m3 (22) 27.0
 
May 21, 2022, 7 p.m. N/A 2.7 ppb (3) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 24.0 ppb (23) 0.15 ppb (2) N/A 6.8 μg/m3 (29) 29.0
 
May 21, 2022, 6 p.m. N/A 2.4 ppb (3) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 24.0 ppb (23) 0.15 ppb (2) N/A 7.0 μg/m3 (30) 30.0
 
May 21, 2022, 5 p.m. N/A 6.9 ppb (7) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 18.0 ppb (17) 0.16 ppb (3) N/A 6.4 μg/m3 (27) 27.0
 
May 21, 2022, 4 p.m. N/A 18.3 ppb (18) N/A 18.0 ppb (17) N/A 1.0 ppb (2) 9.0 ppb (9) 0.19 ppb (3) N/A 7.7 μg/m3 (33) 33.0
 
May 21, 2022, 3 p.m. N/A 10.9 ppb (11) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 11.0 ppb (11) 0.19 ppb (3) N/A 7.3 μg/m3 (31) 31.0
 
May 21, 2022, 2 p.m. N/A 2.6 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 17.0 ppb (16) 0.14 ppb (2) N/A 4.7 μg/m3 (20) 20.0
 
May 21, 2022, 1 p.m. N/A 3.4 ppb (4) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 10.0 ppb (10) 0.15 ppb (2) N/A 5.6 μg/m3 (24) 24.0
 
May 21, 2022, 1 p.m. N/A 3.4 ppb (4) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 10.0 ppb (10) 0.15 ppb (2) N/A 5.6 μg/m3 (24) 24.0
 
May 21, 2022, noon N/A 0.9 ppb (1) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 11.0 ppb (11) 0.15 ppb (2) N/A 4.4 μg/m3 (19) 19.0
 
May 21, 2022, 10 a.m. N/A 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 17.0 ppb (16) 0.13 ppb (2) N/A 4.4 μg/m3 (19) 19.0
 
May 21, 2022, 9 a.m. N/A 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 16.0 ppb (15) 0.15 ppb (2) N/A 4.4 μg/m3 (19) 19.0
 
May 21, 2022, 8 a.m. N/A 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 18.0 ppb (17) 0.15 ppb (2) N/A 4.3 μg/m3 (18) 18.0
 
May 21, 2022, 4 a.m. N/A 0.1 ppb (1) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 25.0 ppb (24) 0.21 ppb (3) N/A 4.2 μg/m3 (18) 24.0
 
May 21, 2022, 3 a.m. N/A 0.8 ppb (1) N/A 15.0 ppb (15) N/A 1.0 ppb (2) 18.0 ppb (17) 0.17 ppb (3) N/A 4.2 μg/m3 (18) 18.0
 
May 21, 2022, 2 a.m. N/A 0.8 ppb (1) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 25.0 ppb (24) 0.17 ppb (3) N/A 4.2 μg/m3 (18) 24.0
 
May 21, 2022, 1 a.m. N/A 3.2 ppb (4) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 23.0 ppb (22) 0.16 ppb (3) N/A 4.2 μg/m3 (18) 22.0
 
May 21, 2022, midnight N/A 3.9 ppb (4) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 24.0 ppb (23) 0.15 ppb (2) N/A 3.9 μg/m3 (17) 23.0
 
May 20, 2022, 11 p.m. N/A 1.3 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 30.0 ppb (28) 0.14 ppb (2) N/A 3.2 μg/m3 (14) 28.0
 
May 20, 2022, 10 p.m. N/A 1.4 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 32.0 ppb (30) 0.15 ppb (2) N/A 3.9 μg/m3 (17) 30.0
 
May 20, 2022, 9 p.m. N/A 1.1 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 32.0 ppb (30) 0.15 ppb (2) N/A 4.9 μg/m3 (21) 30.0
 
May 20, 2022, 7 p.m. N/A 1.2 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 27.0 ppb (25) 0.15 ppb (2) N/A 6.3 μg/m3 (27) 27.0
 
May 20, 2022, 6 p.m. N/A 1.4 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 25.0 ppb (24) 0.14 ppb (2) N/A 6.8 μg/m3 (29) 29.0
 
May 20, 2022, 5 p.m. N/A 2.0 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 23.0 ppb (22) 0.14 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
May 20, 2022, 4 p.m. N/A 3.9 ppb (4) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 19.0 ppb (18) 0.15 ppb (2) N/A 5.3 μg/m3 (23) 23.0
 
May 20, 2022, 3 p.m. N/A 8.2 ppb (8) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 12.0 ppb (12) 0.16 ppb (3) N/A 4.3 μg/m3 (18) 18.0
 
May 20, 2022, 3 p.m. N/A 8.2 ppb (8) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 12.0 ppb (12) 0.16 ppb (3) N/A 4.3 μg/m3 (18) 18.0
 
May 20, 2022, 2 p.m. N/A 8.0 ppb (8) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 10.0 ppb (10) 0.18 ppb (3) N/A 3.3 μg/m3 (14) 14.0
 
May 20, 2022, 1 p.m. N/A 12.4 ppb (12) N/A 15.0 ppb (15) N/A 0.0 ppb (0) 5.0 ppb (5) 0.23 ppb (3) N/A 3.5 μg/m3 (15) 15.0
 
May 20, 2022, 11 a.m. N/A 0.8 ppb (1) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 8.0 ppb (8) 0.17 ppb (3) N/A 2.5 μg/m3 (11) 12.0
 
May 20, 2022, 10 a.m. N/A 0.2 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 13.0 ppb (13) 0.14 ppb (2) N/A 2.4 μg/m3 (10) 13.0
 
May 20, 2022, 9 a.m. N/A 0.1 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 15.0 ppb (14) 0.13 ppb (2) N/A 2.4 μg/m3 (10) 14.0
 
May 20, 2022, 8 a.m. N/A 0.2 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 14.0 ppb (13) 0.14 ppb (2) N/A 2.4 μg/m3 (10) 13.0
 
May 20, 2022, 7 a.m. N/A 0.1 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 15.0 ppb (14) 0.15 ppb (2) N/A 2.7 μg/m3 (12) 14.0
 
May 20, 2022, 6 a.m. N/A 0.2 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 14.0 ppb (13) 0.16 ppb (3) N/A 3.0 μg/m3 (13) 13.0
 
May 20, 2022, 5 a.m. N/A 0.5 ppb (1) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 11.0 ppb (11) 0.22 ppb (3) N/A 3.5 μg/m3 (15) 15.0
 
May 20, 2022, 4 a.m. N/A 0.2 ppb (1) N/A 15.0 ppb (15) N/A 0.0 ppb (0) 14.0 ppb (13) 0.17 ppb (3) N/A 3.5 μg/m3 (15) 15.0
 
May 20, 2022, 3 a.m. N/A 1.0 ppb (1) N/A 17.0 ppb (17) N/A 1.0 ppb (2) 18.0 ppb (17) 0.14 ppb (2) N/A 3.4 μg/m3 (15) 17.0
 
May 20, 2022, 2 a.m. N/A 1.8 ppb (2) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 24.0 ppb (23) 0.13 ppb (2) N/A 3.0 μg/m3 (13) 23.0
 
May 20, 2022, 1 a.m. N/A 0.5 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (29) 0.12 ppb (2) N/A 2.3 μg/m3 (10) 29.0
 
May 20, 2022, 1 a.m. N/A 0.5 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (29) 0.12 ppb (2) N/A 2.3 μg/m3 (10) 29.0
 
May 20, 2022, midnight N/A 1.1 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 31.0 ppb (29) 0.13 ppb (2) N/A 2.2 μg/m3 (10) 29.0
 
May 20, 2022, midnight N/A 1.1 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 31.0 ppb (29) 0.13 ppb (2) N/A 2.2 μg/m3 (10) 29.0
 
May 19, 2022, 11 p.m. N/A 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (30) 0.14 ppb (2) N/A 2.3 μg/m3 (10) 30.0
 
May 19, 2022, 10 p.m. N/A 1.1 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (30) 0.12 ppb (2) N/A 2.6 μg/m3 (11) 30.0
 
May 19, 2022, 9 p.m. N/A 1.6 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (30) 0.12 ppb (2) N/A 3.1 μg/m3 (13) 30.0
 
May 19, 2022, 8 p.m. N/A 1.9 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (29) 0.13 ppb (2) N/A 4.0 μg/m3 (17) 29.0
 
May 19, 2022, 7 p.m. N/A 1.4 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (29) 0.13 ppb (2) N/A 4.6 μg/m3 (20) 29.0
 
May 19, 2022, 7 p.m. N/A 1.4 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (29) 0.13 ppb (2) N/A 4.6 μg/m3 (20) 29.0
 
May 19, 2022, 4 p.m. N/A 1.8 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 28.0 ppb (26) 0.15 ppb (2) N/A 4.4 μg/m3 (19) 26.0
 
May 19, 2022, 2 p.m. N/A 6.8 ppb (7) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 12.0 ppb (12) 0.23 ppb (3) N/A 2.4 μg/m3 (10) 12.0
 
May 19, 2022, 6 a.m. N/A 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (33) 0.13 ppb (2) N/A 1.3 μg/m3 (6) 33.0
 
May 19, 2022, 5 a.m. N/A 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (35) 0.13 ppb (2) N/A 2.4 μg/m3 (10) 35.0
 
May 19, 2022, 4 a.m. N/A 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 36.0 ppb (34) 0.13 ppb (2) N/A 3.0 μg/m3 (13) 34.0
 
May 19, 2022, 3 a.m. N/A 0.1 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 36.0 ppb (34) 0.13 ppb (2) N/A 2.9 μg/m3 (13) 34.0
 
May 19, 2022, 2 a.m. N/A 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 38.0 ppb (36) 0.13 ppb (2) N/A 2.5 μg/m3 (11) 36.0
 
May 19, 2022, 1 a.m. N/A 0.2 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 38.0 ppb (36) 0.14 ppb (2) N/A 1.8 μg/m3 (8) 36.0
 
May 18, 2022, 11 p.m. N/A 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 39.0 ppb (37) 0.16 ppb (3) N/A 1.8 μg/m3 (8) 37.0
 
May 18, 2022, 10 p.m. N/A 2.1 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 37.0 ppb (35) 0.15 ppb (2) N/A 1.5 μg/m3 (7) 35.0
 
May 18, 2022, 9 p.m. N/A 2.2 ppb (3) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 38.0 ppb (36) 0.12 ppb (2) N/A 2.0 μg/m3 (9) 36.0
 
May 18, 2022, 8 p.m. N/A 2.2 ppb (3) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 40.0 ppb (38) 0.13 ppb (2) N/A 2.5 μg/m3 (11) 38.0
 
May 18, 2022, 7 p.m. N/A 1.8 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 38.0 ppb (36) 0.12 ppb (2) N/A 1.9 μg/m3 (8) 36.0
 
May 18, 2022, 5 p.m. N/A 1.4 ppb (2) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 31.0 ppb (29) 0.16 ppb (3) N/A 6.8 μg/m3 (29) 29.0
 
May 18, 2022, 4 p.m. N/A 1.1 ppb (2) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 31.0 ppb (29) 0.16 ppb (3) N/A 4.8 μg/m3 (20) 29.0
 
May 18, 2022, 4 p.m. N/A 1.1 ppb (2) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 31.0 ppb (29) 0.16 ppb (3) N/A 4.8 μg/m3 (20) 29.0
 
May 18, 2022, 3 p.m. N/A 0.5 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 33.0 ppb (31) 0.16 ppb (3) N/A 3.4 μg/m3 (15) 31.0
 
May 18, 2022, 3 p.m. N/A 0.5 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 33.0 ppb (31) 0.16 ppb (3) N/A 3.4 μg/m3 (15) 31.0
 
May 18, 2022, 2 p.m. N/A 0.3 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 33.0 ppb (31) 0.15 ppb (2) N/A 3.4 μg/m3 (15) 31.0
 
May 18, 2022, 2 p.m. N/A 0.3 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 33.0 ppb (31) 0.15 ppb (2) N/A 3.4 μg/m3 (15) 31.0
 
May 18, 2022, 1 p.m. N/A 0.1 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 32.0 ppb (30) 0.15 ppb (2) N/A 3.0 μg/m3 (13) 30.0
 
May 18, 2022, 1 p.m. N/A 0.1 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 32.0 ppb (30) 0.15 ppb (2) N/A 3.0 μg/m3 (13) 30.0
 
May 18, 2022, noon N/A 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (33) 0.13 ppb (2) N/A 2.8 μg/m3 (12) 33.0
 
May 18, 2022, noon N/A 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (33) 0.13 ppb (2) N/A 2.8 μg/m3 (12) 33.0
 
May 18, 2022, 11 a.m. N/A 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (35) 0.14 ppb (2) N/A 2.7 μg/m3 (12) 35.0
 
May 18, 2022, 10 a.m. N/A 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (34) 0.13 ppb (2) N/A 2.6 μg/m3 (11) 34.0
 
May 18, 2022, 2 a.m. N/A 0.2 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 37.0 ppb (35) 0.14 ppb (2) N/A 4.8 μg/m3 (20) 35.0
 
May 18, 2022, 1 a.m. N/A 0.5 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 37.0 ppb (35) 0.14 ppb (2) N/A 4.9 μg/m3 (21) 35.0
 
May 18, 2022, midnight N/A 0.4 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 41.0 ppb (38) 0.13 ppb (2) N/A 3.7 μg/m3 (16) 38.0
 
May 17, 2022, 11 p.m. N/A 0.6 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 37.0 ppb (35) 0.14 ppb (2) N/A 3.5 μg/m3 (15) 35.0
 
May 17, 2022, 10 p.m. N/A 1.2 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 37.0 ppb (35) 0.14 ppb (2) N/A 4.3 μg/m3 (18) 35.0
 
May 17, 2022, 9 p.m. N/A 1.7 ppb (2) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 36.0 ppb (34) 0.14 ppb (2) N/A 5.0 μg/m3 (21) 34.0
 
May 17, 2022, 9 p.m. N/A 1.7 ppb (2) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 36.0 ppb (34) 0.14 ppb (2) N/A 5.0 μg/m3 (21) 34.0
 
May 17, 2022, 8 p.m. N/A 3.2 ppb (4) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 35.0 ppb (33) 0.14 ppb (2) N/A 4.9 μg/m3 (21) 33.0
 
May 17, 2022, 7 p.m. N/A 3.7 ppb (4) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 34.0 ppb (32) 0.14 ppb (2) N/A 5.2 μg/m3 (22) 32.0
 
May 17, 2022, 7 p.m. N/A 3.7 ppb (4) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 34.0 ppb (32) 0.14 ppb (2) N/A 5.2 μg/m3 (22) 32.0
 
May 17, 2022, 6 p.m. N/A 1.5 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 34.0 ppb (32) 0.14 ppb (2) N/A 4.9 μg/m3 (21) 32.0