ID: 2379

AQSQID: 530330030

Site Name: Seattle-10th & Weller

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

Updated: July 4, 2022, 8:35 a.m.

Location: Seattle (Little Saigon), WA

Reporting: True, Located: True

Current AQI: 42.0

Seattle (Little Saigon) WA, US: 47.597222, -122.319722

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 4, 2022, 7 a.m. 18.1 ppb (18) 6.4 ppb (7) N/A 12.0 ppb (12) N/A N/A N/A 0.33 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
July 4, 2022, 6 a.m. 17.2 ppb (17) 5.5 ppb (6) N/A 12.0 ppb (12) N/A N/A N/A 0.29 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
July 4, 2022, 5 a.m. 11.4 ppb (11) 2.8 ppb (3) N/A 9.0 ppb (9) N/A N/A N/A 0.23 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
July 4, 2022, 5 a.m. 11.4 ppb (11) 2.8 ppb (3) N/A 9.0 ppb (9) N/A N/A N/A 0.23 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
July 4, 2022, 4 a.m. 6.9 ppb (7) 1.2 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A 0.18 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
July 4, 2022, 4 a.m. 6.9 ppb (7) 1.2 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A 0.18 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
July 4, 2022, 3 a.m. 6.3 ppb (6) 1.1 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A 0.16 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
July 4, 2022, 3 a.m. 6.3 ppb (6) 1.1 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A 0.16 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
July 4, 2022, 3 a.m. 6.3 ppb (6) 1.1 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A 0.16 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
July 4, 2022, 2 a.m. 7.3 ppb (7) 2.4 ppb (3) N/A 5.0 ppb (5) N/A N/A N/A 0.15 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
July 4, 2022, 2 a.m. 7.3 ppb (7) 2.4 ppb (3) N/A 5.0 ppb (5) N/A N/A N/A 0.15 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
July 4, 2022, 1 a.m. 4.6 ppb (5) 1.3 ppb (2) N/A 3.0 ppb (3) N/A N/A N/A 0.13 ppb (2) N/A 2.0 μg/m3 (9) 9.0
 
July 4, 2022, 1 a.m. 4.6 ppb (5) 1.3 ppb (2) N/A 3.0 ppb (3) N/A N/A N/A 0.13 ppb (2) N/A 2.0 μg/m3 (9) 9.0
 
July 4, 2022, midnight 7.5 ppb (8) 2.1 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A 0.16 ppb (3) N/A 2.0 μg/m3 (9) 9.0
 
July 3, 2022, 11 p.m. 7.0 ppb (7) 2.3 ppb (3) N/A 5.0 ppb (5) N/A N/A N/A 0.15 ppb (2) N/A 3.0 μg/m3 (13) 13.0
 
July 3, 2022, 10 p.m. 9.8 ppb (10) 3.9 ppb (4) N/A 6.0 ppb (6) N/A N/A N/A 0.19 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
July 3, 2022, 7 p.m. 19.6 ppb (19) 10.3 ppb (10) N/A 9.0 ppb (9) N/A N/A N/A 0.32 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
July 3, 2022, 6 p.m. 19.2 ppb (19) 10.7 ppb (11) N/A 9.0 ppb (9) N/A N/A N/A 0.32 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
July 3, 2022, 4 p.m. 14.9 ppb (15) 7.1 ppb (7) N/A 8.0 ppb (8) N/A N/A N/A 0.25 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
July 3, 2022, 3 p.m. 13.4 ppb (13) 6.2 ppb (6) N/A 7.0 ppb (7) N/A N/A N/A 0.21 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
July 3, 2022, noon 6.8 ppb (7) 2.5 ppb (3) N/A 4.0 ppb (4) N/A N/A N/A 0.16 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
July 3, 2022, noon 6.8 ppb (7) 2.5 ppb (3) N/A 4.0 ppb (4) N/A N/A N/A 0.16 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
July 3, 2022, 11 a.m. 5.0 ppb (5) 1.4 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A 0.14 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
July 3, 2022, 10 a.m. 4.7 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A N/A N/A 0.13 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
July 3, 2022, 9 a.m. 8.1 ppb (8) 3.5 ppb (4) N/A 5.0 ppb (5) N/A N/A N/A 0.16 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
July 3, 2022, 8 a.m. 8.1 ppb (8) 3.5 ppb (4) N/A 5.0 ppb (5) N/A N/A N/A 0.16 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
July 3, 2022, 7 a.m. 15.9 ppb (15) 6.2 ppb (6) N/A 10.0 ppb (10) N/A N/A N/A 0.21 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
July 3, 2022, 5 a.m. 21.2 ppb (20) 10.6 ppb (10) N/A 11.0 ppb (11) N/A N/A N/A 0.34 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
July 3, 2022, 5 a.m. 21.2 ppb (20) 10.6 ppb (10) N/A 11.0 ppb (11) N/A N/A N/A 0.34 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
July 3, 2022, 4 a.m. 19.3 ppb (19) 9.6 ppb (10) N/A 10.0 ppb (10) N/A N/A N/A 0.35 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
July 3, 2022, 2 a.m. 18.4 ppb (18) 10.5 ppb (10) N/A 8.0 ppb (8) N/A N/A N/A 0.37 ppb (5) N/A 4.0 μg/m3 (17) 18.0
 
July 3, 2022, 1 a.m. 17.6 ppb (17) 11.1 ppb (11) N/A 6.0 ppb (6) N/A N/A N/A 0.32 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
July 3, 2022, 1 a.m. 17.6 ppb (17) 11.1 ppb (11) N/A 6.0 ppb (6) N/A N/A N/A 0.32 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
July 3, 2022, midnight 28.5 ppb (27) 17.2 ppb (17) N/A 11.0 ppb (11) N/A N/A N/A 0.35 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
July 2, 2022, 11 p.m. 29.5 ppb (28) 16.6 ppb (16) N/A 13.0 ppb (13) N/A N/A N/A 0.35 ppb (4) N/A 7.0 μg/m3 (30) 30.0
 
July 2, 2022, 9 p.m. 26.7 ppb (26) 16.1 ppb (16) N/A 11.0 ppb (11) N/A N/A N/A 0.34 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
July 2, 2022, 8 p.m. 32.0 ppb (31) 19.7 ppb (19) N/A 12.0 ppb (12) N/A N/A N/A 0.31 ppb (4) N/A 5.0 μg/m3 (21) 31.0
 
July 2, 2022, 7 p.m. 53.0 ppb (50) 37.1 ppb (35) N/A 16.0 ppb (16) N/A N/A N/A 0.39 ppb (5) N/A 7.0 μg/m3 (30) 50.0
 
July 2, 2022, 6 p.m. 61.8 ppb (60) 44.7 ppb (43) N/A 17.0 ppb (17) N/A N/A N/A 0.36 ppb (5) N/A 8.0 μg/m3 (34) 60.0
 
July 2, 2022, 5 p.m. 41.8 ppb (40) 27.0 ppb (26) N/A 15.0 ppb (15) N/A N/A N/A 0.3 ppb (4) N/A 8.0 μg/m3 (34) 40.0
 
July 2, 2022, 4 p.m. 5.7 ppb (6) 1.9 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A 0.09 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
July 2, 2022, 3 p.m. 5.1 ppb (5) 1.8 ppb (2) N/A 3.0 ppb (3) N/A N/A N/A 0.1 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
July 2, 2022, 2 p.m. 4.4 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.08 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
July 2, 2022, 1 p.m. 3.6 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.08 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
July 2, 2022, 11 a.m. 3.7 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.09 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
July 2, 2022, 11 a.m. 3.7 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.09 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
July 2, 2022, 10 a.m. 5.3 ppb (5) 0.4 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.1 ppb (2) N/A 14.0 μg/m3 (55) 55.0
 
July 2, 2022, 8 a.m. 4.4 ppb (5) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.09 ppb (2) N/A 2.0 μg/m3 (9) 9.0
 
July 2, 2022, 8 a.m. 4.4 ppb (5) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.09 ppb (2) N/A 2.0 μg/m3 (9) 9.0
 
July 2, 2022, 7 a.m. 4.2 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.09 ppb (2) N/A 1.0 μg/m3 (5) 5.0
 
July 2, 2022, 5 a.m. 5.3 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.16 ppb (3) N/A 3.0 μg/m3 (13) 13.0
 
July 2, 2022, 5 a.m. 5.3 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.16 ppb (3) N/A 3.0 μg/m3 (13) 13.0
 
July 2, 2022, 4 a.m. 8.3 ppb (8) 1.1 ppb (2) N/A 7.0 ppb (7) N/A N/A N/A 0.18 ppb (3) N/A 2.0 μg/m3 (9) 9.0
 
July 2, 2022, 2 a.m. 24.7 ppb (24) 11.8 ppb (12) N/A 13.0 ppb (13) N/A N/A N/A 0.43 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
July 2, 2022, 1 a.m. 28.9 ppb (28) 14.9 ppb (15) N/A 14.0 ppb (14) N/A N/A N/A 0.55 ppb (7) N/A 8.0 μg/m3 (34) 34.0
 
July 2, 2022, midnight 49.4 ppb (47) 25.0 ppb (24) N/A 24.0 ppb (23) N/A N/A N/A 0.46 ppb (6) N/A 12.0 μg/m3 (50) 50.0
 
July 1, 2022, 11 p.m. 60.9 ppb (59) 35.0 ppb (34) N/A 26.0 ppb (25) N/A N/A N/A 0.5 ppb (6) N/A 10.0 μg/m3 (42) 59.0
 
July 1, 2022, 10 p.m. 44.2 ppb (42) 23.8 ppb (23) N/A 20.0 ppb (19) N/A N/A N/A 0.45 ppb (6) N/A 8.0 μg/m3 (34) 42.0
 
July 1, 2022, 9 p.m. 31.0 ppb (30) 16.7 ppb (16) N/A 14.0 ppb (14) N/A N/A N/A 0.36 ppb (5) N/A 8.0 μg/m3 (34) 34.0
 
July 1, 2022, 9 p.m. 31.0 ppb (30) 16.7 ppb (16) N/A 14.0 ppb (14) N/A N/A N/A 0.36 ppb (5) N/A 8.0 μg/m3 (34) 34.0
 
July 1, 2022, 7 p.m. 55.5 ppb (53) 34.4 ppb (33) N/A 21.0 ppb (20) N/A N/A N/A 0.39 ppb (5) N/A 14.0 μg/m3 (55) 55.0
 
July 1, 2022, 4 p.m. 70.9 ppb (70) 50.8 ppb (48) N/A 20.0 ppb (19) N/A N/A N/A 0.4 ppb (5) N/A 11.0 μg/m3 (46) 70.0
 
July 1, 2022, 2 p.m. 99.5 ppb (100) 74.7 ppb (74) N/A 25.0 ppb (24) N/A N/A N/A 0.53 ppb (6) N/A 13.0 μg/m3 (53) 100.0
 
July 1, 2022, 1 p.m. 71.3 ppb (70) 52.6 ppb (50) N/A 19.0 ppb (18) N/A N/A N/A 0.54 ppb (6) N/A 8.0 μg/m3 (34) 70.0
 
July 1, 2022, noon 22.3 ppb (22) 11.6 ppb (11) N/A 11.0 ppb (11) N/A N/A N/A 0.33 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
July 1, 2022, 11 a.m. 5.2 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.11 ppb (2) N/A 3.0 μg/m3 (13) 13.0
 
July 1, 2022, 10 a.m. 4.2 ppb (4) 0.4 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.12 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
July 1, 2022, 7 a.m. 5.5 ppb (6) 0.2 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.13 ppb (2) N/A 2.0 μg/m3 (9) 9.0
 
July 1, 2022, 7 a.m. 5.5 ppb (6) 0.2 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.13 ppb (2) N/A 2.0 μg/m3 (9) 9.0
 
July 1, 2022, 6 a.m. 6.1 ppb (6) 0.4 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.14 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
July 1, 2022, 3 a.m. 21.7 ppb (21) 8.1 ppb (8) N/A 14.0 ppb (14) N/A N/A N/A 0.42 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
July 1, 2022, 3 a.m. 21.7 ppb (21) 8.1 ppb (8) N/A 14.0 ppb (14) N/A N/A N/A 0.42 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
July 1, 2022, 2 a.m. 15.9 ppb (15) 6.9 ppb (7) N/A 9.0 ppb (9) N/A N/A N/A 0.31 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
July 1, 2022, 2 a.m. 15.9 ppb (15) 6.9 ppb (7) N/A 9.0 ppb (9) N/A N/A N/A 0.31 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
July 1, 2022, 2 a.m. 15.9 ppb (15) 6.9 ppb (7) N/A 9.0 ppb (9) N/A N/A N/A 0.31 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
July 1, 2022, 1 a.m. 22.1 ppb (21) 11.8 ppb (12) N/A 10.0 ppb (10) N/A N/A N/A 0.45 ppb (6) N/A 6.0 μg/m3 (25) 25.0
 
July 1, 2022, midnight 13.6 ppb (13) 6.6 ppb (7) N/A 7.0 ppb (7) N/A N/A N/A 0.27 ppb (4) N/A 3.0 μg/m3 (13) 13.0
 
July 1, 2022, midnight 13.6 ppb (13) 6.6 ppb (7) N/A 7.0 ppb (7) N/A N/A N/A 0.27 ppb (4) N/A 3.0 μg/m3 (13) 13.0
 
June 30, 2022, 10 p.m. 22.4 ppb (22) 11.8 ppb (12) N/A 11.0 ppb (11) N/A N/A N/A 0.39 ppb (5) N/A 5.0 μg/m3 (21) 22.0
 
June 30, 2022, 9 p.m. 23.7 ppb (23) 12.7 ppb (12) N/A 11.0 ppb (11) N/A N/A N/A 0.34 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
June 30, 2022, 9 p.m. 23.7 ppb (23) 12.7 ppb (12) N/A 11.0 ppb (11) N/A N/A N/A 0.34 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
June 30, 2022, 9 p.m. 23.7 ppb (23) 12.7 ppb (12) N/A 11.0 ppb (11) N/A N/A N/A 0.34 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
June 30, 2022, 7 p.m. 63.5 ppb (62) 40.9 ppb (39) N/A 23.0 ppb (22) N/A N/A N/A 0.36 ppb (5) N/A 8.0 μg/m3 (34) 62.0
 
June 30, 2022, 7 p.m. 63.5 ppb (62) 40.9 ppb (39) N/A 23.0 ppb (22) N/A N/A N/A 0.36 ppb (5) N/A 8.0 μg/m3 (34) 62.0
 
June 30, 2022, 1 p.m. 12.5 ppb (12) 4.9 ppb (5) N/A 8.0 ppb (8) N/A N/A N/A 0.15 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
June 30, 2022, 10 a.m. 9.0 ppb (9) 2.8 ppb (3) N/A 6.0 ppb (6) N/A N/A N/A 0.12 ppb (2) N/A 3.0 μg/m3 (13) 13.0
 
June 30, 2022, 8 a.m. 9.6 ppb (10) 0.9 ppb (1) N/A 9.0 ppb (9) N/A N/A N/A 0.12 ppb (2) N/A 2.0 μg/m3 (9) 10.0
 
June 30, 2022, 8 a.m. 9.6 ppb (10) 0.9 ppb (1) N/A 9.0 ppb (9) N/A N/A N/A 0.12 ppb (2) N/A 2.0 μg/m3 (9) 10.0
 
June 30, 2022, 6 a.m. 10.3 ppb (10) 1.3 ppb (2) N/A 9.0 ppb (9) N/A N/A N/A 0.13 ppb (2) N/A 0.0 μg/m3 (0) 10.0
 
June 30, 2022, 6 a.m. 10.3 ppb (10) 1.3 ppb (2) N/A 9.0 ppb (9) N/A N/A N/A 0.13 ppb (2) N/A 0.0 μg/m3 (0) 10.0
 
June 30, 2022, 5 a.m. 19.6 ppb (19) 5.2 ppb (5) N/A 14.0 ppb (14) N/A N/A N/A 0.3 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
June 30, 2022, 5 a.m. 19.6 ppb (19) 5.2 ppb (5) N/A 14.0 ppb (14) N/A N/A N/A 0.3 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
June 30, 2022, 4 a.m. 18.9 ppb (18) 5.5 ppb (6) N/A 13.0 ppb (13) N/A N/A N/A 0.24 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
June 30, 2022, 2 a.m. 46.5 ppb (44) 28.4 ppb (27) N/A 18.0 ppb (17) N/A N/A N/A 0.42 ppb (5) N/A 2.0 μg/m3 (9) 44.0
 
June 30, 2022, 2 a.m. 46.5 ppb (44) 28.4 ppb (27) N/A 18.0 ppb (17) N/A N/A N/A 0.42 ppb (5) N/A 2.0 μg/m3 (9) 44.0
 
June 30, 2022, 1 a.m. 45.5 ppb (43) 27.5 ppb (26) N/A 18.0 ppb (17) N/A N/A N/A 0.43 ppb (5) N/A 5.0 μg/m3 (21) 43.0
 
June 30, 2022, midnight 27.1 ppb (26) 15.7 ppb (15) N/A 11.0 ppb (11) N/A N/A N/A 0.31 ppb (4) N/A 7.0 μg/m3 (30) 30.0
 
June 30, 2022, midnight 27.1 ppb (26) 15.7 ppb (15) N/A 11.0 ppb (11) N/A N/A N/A 0.31 ppb (4) N/A 7.0 μg/m3 (30) 30.0
 
June 29, 2022, 11 p.m. 30.9 ppb (30) 21.1 ppb (20) N/A 10.0 ppb (10) N/A N/A N/A 0.33 ppb (4) N/A 5.0 μg/m3 (21) 30.0
 
June 29, 2022, 11 p.m. 30.9 ppb (30) 21.1 ppb (20) N/A 10.0 ppb (10) N/A N/A N/A 0.33 ppb (4) N/A 5.0 μg/m3 (21) 30.0
 
June 29, 2022, 10 p.m. 31.2 ppb (30) 22.5 ppb (22) N/A 9.0 ppb (9) N/A N/A N/A 0.38 ppb (5) N/A 3.0 μg/m3 (13) 30.0
 
June 29, 2022, 10 p.m. 31.2 ppb (30) 22.5 ppb (22) N/A 9.0 ppb (9) N/A N/A N/A 0.38 ppb (5) N/A 3.0 μg/m3 (13) 30.0
 
June 29, 2022, 9 p.m. 35.4 ppb (34) 24.0 ppb (23) N/A 11.0 ppb (11) N/A N/A N/A 0.4 ppb (5) N/A 8.0 μg/m3 (34) 34.0
 
June 29, 2022, 4 p.m. 41.8 ppb (40) 24.1 ppb (23) N/A 18.0 ppb (17) N/A N/A N/A 0.3 ppb (4) N/A 6.0 μg/m3 (25) 40.0
 
June 29, 2022, 1 p.m. 43.8 ppb (42) 26.5 ppb (25) N/A 17.0 ppb (17) N/A N/A N/A 0.43 ppb (5) N/A 1.0 μg/m3 (5) 42.0
 
June 29, 2022, noon 34.9 ppb (33) 21.9 ppb (21) N/A 13.0 ppb (13) N/A N/A N/A 0.47 ppb (6) N/A 1.0 μg/m3 (5) 33.0
 
June 29, 2022, 10 a.m. 10.5 ppb (10) 5.6 ppb (6) N/A 5.0 ppb (5) N/A N/A N/A 0.19 ppb (3) N/A -3.0 μg/m3 (0) 10.0
 
June 29, 2022, 9 a.m. 14.7 ppb (14) 7.3 ppb (7) N/A 7.0 ppb (7) N/A N/A N/A 0.15 ppb (2) N/A 0.0 μg/m3 (0) 14.0
 
June 29, 2022, 8 a.m. 12.1 ppb (12) 5.2 ppb (5) N/A 7.0 ppb (7) N/A N/A N/A 0.14 ppb (2) N/A 2.0 μg/m3 (9) 12.0
 
June 29, 2022, 8 a.m. 12.1 ppb (12) 5.2 ppb (5) N/A 7.0 ppb (7) N/A N/A N/A 0.14 ppb (2) N/A 2.0 μg/m3 (9) 12.0
 
June 29, 2022, 7 a.m. 14.7 ppb (14) 7.3 ppb (7) N/A 7.0 ppb (7) N/A N/A N/A 0.15 ppb (2) N/A 2.0 μg/m3 (9) 14.0
 
June 29, 2022, 7 a.m. 14.7 ppb (14) 7.3 ppb (7) N/A 7.0 ppb (7) N/A N/A N/A 0.15 ppb (2) N/A 2.0 μg/m3 (9) 14.0
 
June 29, 2022, 6 a.m. 10.7 ppb (11) 5.2 ppb (5) N/A 5.0 ppb (5) N/A N/A N/A 0.18 ppb (3) N/A 0.0 μg/m3 (0) 11.0
 
June 29, 2022, 2 a.m. 15.2 ppb (15) 8.9 ppb (9) N/A 6.0 ppb (6) N/A N/A N/A 0.26 ppb (4) N/A 2.0 μg/m3 (9) 15.0
 
June 28, 2022, 11 p.m. 30.0 ppb (29) 16.9 ppb (16) N/A 13.0 ppb (13) N/A N/A N/A 0.32 ppb (4) N/A 3.0 μg/m3 (13) 29.0
 
June 28, 2022, 10 p.m. 31.3 ppb (30) 18.0 ppb (17) N/A 13.0 ppb (13) N/A N/A N/A 0.34 ppb (4) N/A 1.0 μg/m3 (5) 30.0
 
June 28, 2022, 10 p.m. 31.3 ppb (30) 18.0 ppb (17) N/A 13.0 ppb (13) N/A N/A N/A 0.34 ppb (4) N/A 1.0 μg/m3 (5) 30.0
 
June 28, 2022, 9 p.m. 26.8 ppb (26) 16.2 ppb (16) N/A 11.0 ppb (11) N/A N/A N/A 0.3 ppb (4) N/A 4.0 μg/m3 (17) 26.0
 
June 28, 2022, 8 p.m. 27.7 ppb (27) 16.5 ppb (16) N/A 11.0 ppb (11) N/A N/A N/A 0.25 ppb (3) N/A 6.0 μg/m3 (25) 27.0
 
June 28, 2022, 8 p.m. 27.7 ppb (27) 16.5 ppb (16) N/A 11.0 ppb (11) N/A N/A N/A 0.25 ppb (3) N/A 6.0 μg/m3 (25) 27.0
 
June 28, 2022, 7 p.m. 26.2 ppb (25) 15.4 ppb (15) N/A 11.0 ppb (11) N/A N/A N/A 0.22 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
June 28, 2022, 7 p.m. 26.2 ppb (25) 15.4 ppb (15) N/A 11.0 ppb (11) N/A N/A N/A 0.22 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
June 28, 2022, 11 a.m. 16.6 ppb (16) 8.6 ppb (9) N/A 8.0 ppb (8) N/A N/A N/A 0.19 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
June 28, 2022, 10 a.m. 5.8 ppb (6) 1.8 ppb (2) N/A 4.0 ppb (4) N/A N/A N/A 0.12 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
June 28, 2022, 8 a.m. 8.9 ppb (9) 3.2 ppb (4) N/A 6.0 ppb (6) N/A N/A N/A 0.15 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
June 28, 2022, 8 a.m. 8.9 ppb (9) 3.2 ppb (4) N/A 6.0 ppb (6) N/A N/A N/A 0.15 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
June 28, 2022, 8 a.m. 8.9 ppb (9) 3.2 ppb (4) N/A 6.0 ppb (6) N/A N/A N/A 0.15 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
June 28, 2022, 7 a.m. 8.2 ppb (8) 2.8 ppb (3) N/A 5.0 ppb (5) N/A N/A N/A 0.15 ppb (2) N/A 7.0 μg/m3 (30) 30.0
 
June 28, 2022, 6 a.m. 12.2 ppb (12) 5.0 ppb (5) N/A 7.0 ppb (7) N/A N/A N/A 0.16 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
June 28, 2022, 5 a.m. 14.2 ppb (14) 4.9 ppb (5) N/A 9.0 ppb (9) N/A N/A N/A 0.28 ppb (4) N/A 7.0 μg/m3 (30) 30.0
 
June 28, 2022, 2 a.m. 16.0 ppb (16) 8.0 ppb (8) N/A 8.0 ppb (8) N/A N/A N/A 0.34 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
June 28, 2022, 1 a.m. 27.8 ppb (27) 13.6 ppb (13) N/A 14.0 ppb (14) N/A N/A N/A 0.44 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
June 28, 2022, 1 a.m. 27.8 ppb (27) 13.6 ppb (13) N/A 14.0 ppb (14) N/A N/A N/A 0.44 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
June 28, 2022, midnight 31.3 ppb (30) 13.1 ppb (13) N/A 18.0 ppb (17) N/A N/A N/A 0.57 ppb (7) N/A 13.0 μg/m3 (53) 53.0
 
June 28, 2022, midnight 31.3 ppb (30) 13.1 ppb (13) N/A 18.0 ppb (17) N/A N/A N/A 0.57 ppb (7) N/A 13.0 μg/m3 (53) 53.0
 
June 27, 2022, 11 p.m. 28.4 ppb (27) 13.6 ppb (13) N/A 15.0 ppb (15) N/A N/A N/A 0.38 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
June 27, 2022, 10 p.m. 44.9 ppb (43) 20.7 ppb (20) N/A 24.0 ppb (23) N/A N/A N/A 0.5 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
June 27, 2022, 10 p.m. 44.9 ppb (43) 20.7 ppb (20) N/A 24.0 ppb (23) N/A N/A N/A 0.5 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
June 27, 2022, 10 p.m. 44.9 ppb (43) 20.7 ppb (20) N/A 24.0 ppb (23) N/A N/A N/A 0.5 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
June 27, 2022, 9 p.m. 48.4 ppb (46) 21.4 ppb (21) N/A 27.0 ppb (26) N/A N/A N/A 0.57 ppb (7) N/A 13.0 μg/m3 (53) 53.0
 
June 27, 2022, 9 p.m. 48.4 ppb (46) 21.4 ppb (21) N/A 27.0 ppb (26) N/A N/A N/A 0.57 ppb (7) N/A 13.0 μg/m3 (53) 53.0
 
June 27, 2022, 9 p.m. 48.4 ppb (46) 21.4 ppb (21) N/A 27.0 ppb (26) N/A N/A N/A 0.57 ppb (7) N/A 13.0 μg/m3 (53) 53.0
 
June 27, 2022, 8 p.m. 46.8 ppb (45) 17.7 ppb (17) N/A 29.0 ppb (28) N/A N/A N/A 0.52 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
June 27, 2022, 4 p.m. 111.0 ppb (103) 79.8 ppb (79) N/A 31.0 ppb (30) N/A N/A N/A 0.41 ppb (5) N/A 14.0 μg/m3 (55) 103.0
 
June 27, 2022, 4 p.m. 111.0 ppb (103) 79.8 ppb (79) N/A 31.0 ppb (30) N/A N/A N/A 0.41 ppb (5) N/A 14.0 μg/m3 (55) 103.0
 
June 27, 2022, 2 p.m. 143.8 ppb (110) 108.8 ppb (103) N/A 35.0 ppb (34) N/A N/A N/A 0.58 ppb (7) N/A 17.0 μg/m3 (62) 110.0
 
June 27, 2022, 1 p.m. 129.8 ppb (107) 97.1 ppb (97) N/A 33.0 ppb (32) N/A N/A N/A 0.6 ppb (7) N/A 20.0 μg/m3 (68) 107.0
 
June 27, 2022, 11 a.m. 23.2 ppb (22) 3.3 ppb (4) N/A 20.0 ppb (19) N/A N/A N/A 0.28 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
June 27, 2022, 11 a.m. 23.2 ppb (22) 3.3 ppb (4) N/A 20.0 ppb (19) N/A N/A N/A 0.28 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
June 27, 2022, 11 a.m. 23.2 ppb (22) 3.3 ppb (4) N/A 20.0 ppb (19) N/A N/A N/A 0.28 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
June 27, 2022, 10 a.m. 27.8 ppb (27) 6.7 ppb (7) N/A 21.0 ppb (20) N/A N/A N/A 0.28 ppb (4) N/A 7.0 μg/m3 (30) 30.0
 
June 27, 2022, 10 a.m. 27.8 ppb (27) 6.7 ppb (7) N/A 21.0 ppb (20) N/A N/A N/A 0.28 ppb (4) N/A 7.0 μg/m3 (30) 30.0
 
June 27, 2022, 6 a.m. 8.5 ppb (9) 0.4 ppb (1) N/A 8.0 ppb (8) N/A N/A N/A 0.17 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
June 27, 2022, 5 a.m. 18.1 ppb (18) 3.4 ppb (4) N/A 15.0 ppb (15) N/A N/A N/A 0.33 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
June 27, 2022, 4 a.m. 19.3 ppb (19) 3.9 ppb (4) N/A 15.0 ppb (15) N/A N/A N/A 0.42 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
June 27, 2022, 3 a.m. 16.7 ppb (16) 3.9 ppb (4) N/A 13.0 ppb (13) N/A N/A N/A 0.42 ppb (5) N/A 7.0 μg/m3 (30) 30.0
 
June 27, 2022, 2 a.m. 20.1 ppb (19) 5.8 ppb (6) N/A 14.0 ppb (14) N/A N/A N/A 0.48 ppb (6) N/A 7.0 μg/m3 (30) 30.0
 
June 27, 2022, 1 a.m. 19.6 ppb (19) 5.5 ppb (6) N/A 14.0 ppb (14) N/A N/A N/A 0.58 ppb (7) N/A 8.0 μg/m3 (34) 34.0
 
June 27, 2022, midnight 14.9 ppb (15) 4.6 ppb (5) N/A 10.0 ppb (10) N/A N/A N/A 0.48 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
June 26, 2022, 10 p.m. 10.4 ppb (10) 3.2 ppb (4) N/A 7.0 ppb (7) N/A N/A N/A 0.36 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
June 26, 2022, 9 p.m. 14.3 ppb (14) 4.4 ppb (5) N/A 10.0 ppb (10) N/A N/A N/A 0.42 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
June 26, 2022, 8 p.m. 16.3 ppb (16) 5.6 ppb (6) N/A 11.0 ppb (11) N/A N/A N/A 0.35 ppb (4) N/A 4.0 μg/m3 (17) 17.0
 
June 26, 2022, 5 p.m. 14.7 ppb (14) 6.1 ppb (6) N/A 9.0 ppb (9) N/A N/A N/A 0.34 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
June 26, 2022, 4 p.m. 26.4 ppb (25) 13.2 ppb (13) N/A 13.0 ppb (13) N/A N/A N/A 0.43 ppb (5) N/A 4.0 μg/m3 (17) 25.0
 
June 26, 2022, 3 p.m. 50.2 ppb (48) 29.8 ppb (29) N/A 20.0 ppb (19) N/A N/A N/A 0.47 ppb (6) N/A 8.0 μg/m3 (34) 48.0
 
June 26, 2022, noon 6.6 ppb (7) 0.4 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.16 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
June 26, 2022, 11 a.m. 6.1 ppb (6) 0.2 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.14 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
June 26, 2022, 11 a.m. 6.1 ppb (6) 0.2 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.14 ppb (2) N/A 10.0 μg/m3 (42) 42.0