ID: 2374

AQSQID: 410670005

Site Name: Portland Near Road

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

Updated: June 15, 2021, 12:51 p.m.

Location: Lake Oswego (Swest Bradbury Court), OR

Reporting: True, Located: True

Current AQI: 14.0

Lake Oswego (Swest Bradbury Court) OR, US: 45.39916, -122.7455

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
June 15, 2021, 11 a.m. 7.1 ppb (7) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A 10.0 ppb (10) N/A N/A 3.3 μg/m3 (14) 14.0
 
June 15, 2021, 10 a.m. 14.4 ppb (14) 6.8 ppb (7) N/A 8.0 ppb (8) N/A N/A 14.0 ppb (13) N/A N/A 3.5 μg/m3 (15) 15.0
 
June 15, 2021, 9 a.m. 14.9 ppb (15) 6.5 ppb (7) N/A 8.0 ppb (8) N/A N/A 11.0 ppb (11) N/A N/A 3.7 μg/m3 (16) 16.0
 
June 15, 2021, 8 a.m. 15.9 ppb (15) 6.1 ppb (6) N/A 10.0 ppb (10) N/A N/A 12.0 ppb (12) 0.0 ppb (0) N/A 4.2 μg/m3 (18) 18.0
 
June 15, 2021, 7 a.m. 18.0 ppb (17) 5.0 ppb (5) N/A 13.0 ppb (13) N/A N/A 6.0 ppb (6) 0.13 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
June 15, 2021, 6 a.m. 18.1 ppb (18) 6.1 ppb (6) N/A 12.0 ppb (12) N/A N/A 10.0 ppb (10) 0.1 ppb (2) N/A 3.8 μg/m3 (16) 18.0
 
June 15, 2021, 5 a.m. 9.8 ppb (10) 2.3 ppb (3) N/A 7.0 ppb (7) N/A N/A 10.0 ppb (10) 0.01 ppb (0) N/A 4.2 μg/m3 (18) 18.0
 
June 15, 2021, 4 a.m. 21.6 ppb (21) 9.9 ppb (10) N/A 12.0 ppb (12) N/A N/A 16.0 ppb (15) 0.18 ppb (3) N/A 4.0 μg/m3 (17) 21.0
 
June 15, 2021, 3 a.m. 19.4 ppb (19) 9.8 ppb (10) N/A 10.0 ppb (10) N/A N/A 23.0 ppb (22) 0.11 ppb (2) N/A 3.0 μg/m3 (13) 22.0
 
June 15, 2021, 2 a.m. 25.4 ppb (24) 12.9 ppb (13) N/A 13.0 ppb (13) N/A N/A 20.0 ppb (19) 0.33 ppb (4) N/A 4.5 μg/m3 (19) 24.0
 
June 15, 2021, 1 a.m. 21.2 ppb (20) 10.1 ppb (10) N/A 11.0 ppb (11) N/A N/A 24.0 ppb (23) 0.23 ppb (3) N/A 3.8 μg/m3 (16) 23.0
 
June 15, 2021, midnight 20.1 ppb (19) 8.8 ppb (9) N/A 11.0 ppb (11) N/A N/A 24.0 ppb (23) 0.14 ppb (2) N/A 3.6 μg/m3 (16) 23.0
 
June 14, 2021, 11 p.m. 6.5 ppb (7) 2.1 ppb (2) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (30) N/A N/A 3.0 μg/m3 (13) 30.0
 
June 14, 2021, 10 p.m. 3.5 ppb (4) 1.4 ppb (2) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (28) N/A N/A 3.1 μg/m3 (13) 28.0
 
June 14, 2021, 9 p.m. 5.6 ppb (6) 2.2 ppb (3) N/A 3.0 ppb (3) N/A N/A 27.0 ppb (25) N/A N/A 3.8 μg/m3 (16) 25.0
 
June 14, 2021, 8 p.m. 14.1 ppb (14) 8.0 ppb (8) N/A 7.0 ppb (7) N/A N/A 21.0 ppb (20) N/A N/A 4.4 μg/m3 (19) 20.0
 
June 14, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) 0.03 ppb (0) N/A 5.6 μg/m3 (24) 24.0
 
June 14, 2021, 6 p.m. 36.8 ppb (35) 23.0 ppb (22) N/A 14.0 ppb (14) N/A N/A 14.0 ppb (13) N/A N/A 5.3 μg/m3 (23) 35.0
 
June 14, 2021, 5 p.m. 18.6 ppb (18) 9.9 ppb (10) N/A 9.0 ppb (9) N/A N/A 12.0 ppb (12) 0.02 ppb (0) N/A 4.3 μg/m3 (18) 18.0
 
June 14, 2021, 4 p.m. 9.1 ppb (9) 3.5 ppb (4) N/A 6.0 ppb (6) N/A N/A 16.0 ppb (15) N/A N/A 3.9 μg/m3 (17) 17.0
 
June 14, 2021, 3 p.m. 13.4 ppb (13) 5.0 ppb (5) N/A 8.0 ppb (8) N/A N/A 10.0 ppb (10) N/A N/A 3.7 μg/m3 (16) 16.0
 
June 14, 2021, 2 p.m. 44.1 ppb (42) 30.5 ppb (29) N/A 14.0 ppb (14) N/A N/A 5.0 ppb (5) 0.14 ppb (2) N/A 5.1 μg/m3 (22) 42.0
 
June 14, 2021, 1 p.m. 26.4 ppb (25) 14.5 ppb (14) N/A 12.0 ppb (12) N/A N/A 4.0 ppb (4) 0.07 ppb (2) N/A 5.7 μg/m3 (24) 25.0
 
June 14, 2021, noon 21.9 ppb (21) 13.8 ppb (14) N/A 8.0 ppb (8) N/A N/A 4.0 ppb (4) 0.06 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
June 14, 2021, 11 a.m. 9.1 ppb (9) 3.1 ppb (3) N/A 6.0 ppb (6) N/A N/A 4.0 ppb (4) N/A N/A 5.0 μg/m3 (21) 21.0
 
June 14, 2021, 10 a.m. 12.4 ppb (12) 3.9 ppb (4) N/A 9.0 ppb (9) N/A N/A 2.0 ppb (2) N/A N/A 5.4 μg/m3 (23) 23.0
 
June 14, 2021, 9 a.m. 19.8 ppb (19) 10.1 ppb (10) N/A 10.0 ppb (10) N/A N/A 3.0 ppb (3) 0.0 ppb (0) N/A 6.1 μg/m3 (26) 26.0
 
June 14, 2021, 8 a.m. 13.7 ppb (13) 6.2 ppb (6) N/A 7.0 ppb (7) N/A N/A 4.0 ppb (4) 0.02 ppb (0) N/A 5.5 μg/m3 (23) 23.0
 
June 14, 2021, 7 a.m. 13.5 ppb (13) 6.6 ppb (7) N/A 7.0 ppb (7) N/A N/A 5.0 ppb (5) 0.04 ppb (0) N/A 5.4 μg/m3 (23) 23.0
 
June 14, 2021, 6 a.m. 4.3 ppb (5) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 8.0 ppb (8) N/A N/A 4.7 μg/m3 (20) 20.0
 
June 14, 2021, 5 a.m. 5.2 ppb (5) 1.6 ppb (2) N/A 4.0 ppb (4) N/A N/A 9.0 ppb (9) N/A N/A 4.6 μg/m3 (20) 20.0
 
June 14, 2021, 4 a.m. 4.7 ppb (5) 0.4 ppb (1) N/A 4.0 ppb (4) N/A N/A 11.0 ppb (11) N/A N/A 4.6 μg/m3 (20) 20.0
 
June 14, 2021, 3 a.m. 16.7 ppb (16) 8.1 ppb (8) N/A 9.0 ppb (9) N/A N/A 10.0 ppb (10) 0.02 ppb (0) N/A 4.6 μg/m3 (20) 20.0
 
June 14, 2021, 2 a.m. 15.2 ppb (15) 6.7 ppb (7) N/A 9.0 ppb (9) N/A N/A 12.0 ppb (12) 0.08 ppb (2) N/A 3.6 μg/m3 (16) 16.0
 
June 14, 2021, 1 a.m. 4.9 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A 17.0 ppb (16) N/A N/A 3.2 μg/m3 (14) 16.0
 
June 14, 2021, midnight 28.5 ppb (27) 15.1 ppb (15) N/A 14.0 ppb (14) N/A N/A 14.0 ppb (13) 0.17 ppb (3) N/A 4.8 μg/m3 (20) 27.0
 
June 13, 2021, 11 p.m. 20.4 ppb (20) 7.5 ppb (8) N/A 13.0 ppb (13) N/A N/A 18.0 ppb (17) 0.08 ppb (2) N/A 6.8 μg/m3 (29) 29.0
 
June 13, 2021, 10 p.m. 8.7 ppb (9) 2.1 ppb (2) N/A 7.0 ppb (7) N/A N/A 27.0 ppb (25) N/A N/A 5.1 μg/m3 (22) 25.0
 
June 13, 2021, 9 p.m. 4.0 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 31.0 ppb (29) N/A N/A 4.2 μg/m3 (18) 29.0
 
June 13, 2021, 8 p.m. 7.1 ppb (7) 1.5 ppb (2) N/A 6.0 ppb (6) N/A N/A 31.0 ppb (29) N/A N/A 4.1 μg/m3 (18) 29.0
 
June 13, 2021, 7 p.m. 13.4 ppb (13) 5.7 ppb (6) N/A 8.0 ppb (8) N/A N/A 24.0 ppb (23) N/A N/A 3.5 μg/m3 (15) 23.0
 
June 13, 2021, 6 p.m. 4.2 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 18.0 ppb (17) N/A N/A 3.2 μg/m3 (14) 17.0
 
June 13, 2021, 5 p.m. 3.7 ppb (4) 1.2 ppb (2) N/A 3.0 ppb (3) N/A N/A 16.0 ppb (15) N/A N/A 3.2 μg/m3 (14) 15.0
 
June 13, 2021, 4 p.m. 2.3 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 15.0 ppb (14) N/A N/A 3.0 μg/m3 (13) 14.0
 
June 13, 2021, 3 p.m. 3.5 ppb (4) 1.4 ppb (2) N/A 2.0 ppb (2) N/A N/A 14.0 ppb (13) N/A N/A 2.7 μg/m3 (12) 13.0
 
June 13, 2021, 2 p.m. 1.4 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 16.0 ppb (15) N/A N/A 2.3 μg/m3 (10) 15.0
 
June 13, 2021, 1 p.m. 1.6 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 14.0 ppb (13) N/A N/A 2.4 μg/m3 (10) 13.0
 
June 13, 2021, noon 6.1 ppb (6) 1.3 ppb (2) N/A 5.0 ppb (5) N/A N/A 12.0 ppb (12) N/A N/A 2.7 μg/m3 (12) 12.0
 
June 13, 2021, 11 a.m. 1.7 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 18.0 ppb (17) N/A N/A 2.4 μg/m3 (10) 17.0
 
June 13, 2021, 10 a.m. 0.6 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 21.0 ppb (20) N/A N/A 2.4 μg/m3 (10) 20.0
 
June 13, 2021, 9 a.m. 0.8 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 18.0 ppb (17) N/A N/A 2.5 μg/m3 (11) 17.0
 
June 13, 2021, 8 a.m. 1.3 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 17.0 ppb (16) N/A N/A 3.1 μg/m3 (13) 16.0
 
June 13, 2021, 7 a.m. 1.5 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 18.0 ppb (17) N/A N/A 3.6 μg/m3 (16) 17.0
 
June 13, 2021, 6 a.m. 2.5 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 17.0 ppb (16) N/A N/A 4.0 μg/m3 (17) 17.0
 
June 13, 2021, 5 a.m. 7.9 ppb (8) 1.2 ppb (2) N/A 7.0 ppb (7) N/A N/A 14.0 ppb (13) 0.01 ppb (0) N/A 4.2 μg/m3 (18) 18.0
 
June 13, 2021, 4 a.m. 14.2 ppb (14) 6.2 ppb (6) N/A 8.0 ppb (8) N/A N/A 17.0 ppb (16) 0.08 ppb (2) N/A 4.8 μg/m3 (20) 20.0
 
June 13, 2021, 3 a.m. 24.2 ppb (23) 10.1 ppb (10) N/A 14.0 ppb (14) N/A N/A 16.0 ppb (15) 0.28 ppb (4) N/A 5.0 μg/m3 (21) 23.0
 
June 13, 2021, 2 a.m. 28.3 ppb (27) 12.0 ppb (12) N/A 16.0 ppb (16) N/A N/A 19.0 ppb (18) 0.38 ppb (5) N/A 4.2 μg/m3 (18) 27.0
 
June 13, 2021, 1 a.m. 21.2 ppb (20) 8.7 ppb (9) N/A 13.0 ppb (13) N/A N/A 30.0 ppb (28) 0.27 ppb (4) N/A 3.3 μg/m3 (14) 28.0
 
June 13, 2021, midnight 22.2 ppb (21) 10.5 ppb (10) N/A 12.0 ppb (12) N/A N/A 32.0 ppb (30) 0.26 ppb (4) N/A 3.1 μg/m3 (13) 30.0
 
June 12, 2021, 11 p.m. 18.1 ppb (18) 8.9 ppb (9) N/A 9.0 ppb (9) N/A N/A 32.0 ppb (30) 0.17 ppb (3) N/A 2.9 μg/m3 (13) 30.0
 
June 12, 2021, 10 p.m. 16.2 ppb (16) 7.8 ppb (8) N/A 8.0 ppb (8) N/A N/A 33.0 ppb (31) 0.16 ppb (3) N/A 2.7 μg/m3 (12) 31.0
 
June 12, 2021, 9 p.m. 14.1 ppb (14) 7.3 ppb (7) N/A 7.0 ppb (7) N/A N/A 32.0 ppb (30) 0.16 ppb (3) N/A 2.7 μg/m3 (12) 30.0
 
June 12, 2021, 8 p.m. 11.1 ppb (11) 5.8 ppb (6) N/A 5.0 ppb (5) N/A N/A 30.0 ppb (28) 0.05 ppb (2) N/A 2.6 μg/m3 (11) 28.0
 
June 12, 2021, 7 p.m. 8.4 ppb (8) 4.6 ppb (5) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (28) 0.04 ppb (0) N/A 2.4 μg/m3 (10) 28.0
 
June 12, 2021, 6 p.m. 6.5 ppb (7) 3.5 ppb (4) N/A 3.0 ppb (3) N/A N/A 29.0 ppb (27) 0.03 ppb (0) N/A 2.2 μg/m3 (10) 27.0
 
June 12, 2021, 5 p.m. 2.7 ppb (3) 1.2 ppb (2) N/A 1.0 ppb (1) N/A N/A 25.0 ppb (24) N/A N/A 2.4 μg/m3 (10) 24.0
 
June 12, 2021, 4 p.m. 3.6 ppb (4) 1.9 ppb (2) N/A 2.0 ppb (2) N/A N/A 22.0 ppb (21) N/A N/A 2.4 μg/m3 (10) 21.0
 
June 12, 2021, 3 p.m. 5.4 ppb (6) 2.9 ppb (3) N/A 2.0 ppb (2) N/A N/A 19.0 ppb (18) N/A N/A 2.5 μg/m3 (11) 18.0
 
June 12, 2021, 2 p.m. 6.2 ppb (6) 2.8 ppb (3) N/A 3.0 ppb (3) N/A N/A 12.0 ppb (12) 0.0 ppb (0) N/A 2.8 μg/m3 (12) 12.0
 
June 12, 2021, 1 p.m. 11.8 ppb (12) 5.4 ppb (6) N/A 7.0 ppb (7) N/A N/A 7.0 ppb (7) 0.03 ppb (0) N/A 2.6 μg/m3 (11) 12.0
 
June 12, 2021, noon 19.4 ppb (19) 10.7 ppb (11) N/A 9.0 ppb (9) N/A N/A 5.0 ppb (5) 0.11 ppb (2) N/A 2.6 μg/m3 (11) 19.0
 
June 12, 2021, 11 a.m. 12.1 ppb (12) 5.2 ppb (5) N/A 7.0 ppb (7) N/A N/A 7.0 ppb (7) 0.01 ppb (0) N/A 2.5 μg/m3 (11) 12.0
 
June 12, 2021, 10 a.m. 4.8 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A 13.0 ppb (13) N/A N/A 2.2 μg/m3 (10) 13.0
 
June 12, 2021, 9 a.m. 3.6 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 16.0 ppb (15) N/A N/A 2.1 μg/m3 (9) 15.0
 
June 12, 2021, 8 a.m. 1.3 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 22.0 ppb (21) N/A N/A 2.1 μg/m3 (9) 21.0
 
June 12, 2021, 7 a.m. 2.3 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 22.0 ppb (21) N/A N/A 2.1 μg/m3 (9) 21.0
 
June 12, 2021, 6 a.m. 2.2 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 22.0 ppb (21) N/A N/A 2.1 μg/m3 (9) 21.0
 
June 12, 2021, 5 a.m. 14.7 ppb (14) 5.3 ppb (5) N/A 9.0 ppb (9) N/A N/A 18.0 ppb (17) 0.07 ppb (2) N/A 2.3 μg/m3 (10) 17.0
 
June 12, 2021, 4 a.m. 15.4 ppb (15) 7.0 ppb (7) N/A 8.0 ppb (8) N/A N/A 17.0 ppb (16) 0.23 ppb (3) N/A 2.5 μg/m3 (11) 16.0
 
June 12, 2021, 3 a.m. 22.8 ppb (22) 11.9 ppb (12) N/A 11.0 ppb (11) N/A N/A 16.0 ppb (15) 0.34 ppb (4) N/A 4.2 μg/m3 (18) 22.0
 
June 12, 2021, 2 a.m. 19.4 ppb (19) 10.3 ppb (10) N/A 9.0 ppb (9) N/A N/A 17.0 ppb (16) 0.24 ppb (3) N/A 5.9 μg/m3 (25) 25.0
 
June 12, 2021, 1 a.m. 3.8 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 24.0 ppb (23) 0.0 ppb (0) N/A 5.1 μg/m3 (22) 23.0
 
June 12, 2021, midnight 5.9 ppb (6) 1.5 ppb (2) N/A 4.0 ppb (4) N/A N/A 25.0 ppb (24) 0.01 ppb (0) N/A 4.0 μg/m3 (17) 24.0
 
June 11, 2021, 11 p.m. 13.1 ppb (13) 4.7 ppb (5) N/A 9.0 ppb (9) N/A N/A 22.0 ppb (21) 0.1 ppb (2) N/A 4.5 μg/m3 (19) 21.0
 
June 11, 2021, 10 p.m. 18.0 ppb (17) 9.5 ppb (9) N/A 9.0 ppb (9) N/A N/A 20.0 ppb (19) 0.07 ppb (2) N/A 5.4 μg/m3 (23) 23.0
 
June 11, 2021, 9 p.m. 5.8 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A N/A 23.0 ppb (22) 0.01 ppb (0) N/A 5.0 μg/m3 (21) 22.0
 
June 11, 2021, 8 p.m. 9.1 ppb (9) 3.2 ppb (4) N/A 6.0 ppb (6) N/A N/A 17.0 ppb (16) 0.04 ppb (0) N/A 5.4 μg/m3 (23) 23.0
 
June 11, 2021, 7 p.m. 9.6 ppb (10) 3.1 ppb (3) N/A 6.0 ppb (6) N/A N/A 18.0 ppb (17) 0.03 ppb (0) N/A 5.0 μg/m3 (21) 21.0
 
June 11, 2021, 6 p.m. 37.2 ppb (36) 22.6 ppb (22) N/A 15.0 ppb (15) N/A N/A 14.0 ppb (13) 0.13 ppb (2) N/A 5.4 μg/m3 (23) 36.0
 
June 11, 2021, 5 p.m. 34.3 ppb (33) 20.6 ppb (20) N/A 14.0 ppb (14) N/A N/A 10.0 ppb (10) 0.16 ppb (3) N/A 5.0 μg/m3 (21) 33.0
 
June 11, 2021, 4 p.m. 29.8 ppb (29) 16.0 ppb (16) N/A 14.0 ppb (14) N/A N/A 7.0 ppb (7) 0.13 ppb (2) N/A 4.4 μg/m3 (19) 29.0
 
June 11, 2021, 3 p.m. 72.2 ppb (71) 52.2 ppb (50) N/A 21.0 ppb (20) N/A N/A 5.0 ppb (5) 0.33 ppb (4) N/A 4.7 μg/m3 (20) 71.0
 
June 11, 2021, 2 p.m. 64.8 ppb (63) 44.3 ppb (42) N/A 21.0 ppb (20) N/A N/A 6.0 ppb (6) 0.37 ppb (5) N/A 5.3 μg/m3 (23) 63.0
 
June 11, 2021, 1 p.m. 51.0 ppb (49) 33.0 ppb (32) N/A 18.0 ppb (17) N/A N/A 6.0 ppb (6) 0.24 ppb (3) N/A 4.1 μg/m3 (18) 49.0
 
June 11, 2021, noon 43.4 ppb (41) 27.4 ppb (26) N/A 16.0 ppb (16) N/A N/A 8.0 ppb (8) 0.15 ppb (2) N/A 3.7 μg/m3 (16) 41.0
 
June 11, 2021, 11 a.m. 16.1 ppb (16) 6.7 ppb (7) N/A 9.0 ppb (9) N/A N/A 14.0 ppb (13) 0.08 ppb (2) N/A 3.2 μg/m3 (14) 16.0
 
June 11, 2021, 10 a.m. 9.2 ppb (9) 2.0 ppb (2) N/A 7.0 ppb (7) N/A N/A 16.0 ppb (15) N/A N/A 2.9 μg/m3 (13) 15.0
 
June 11, 2021, 9 a.m. 10.9 ppb (11) 3.5 ppb (4) N/A 7.0 ppb (7) N/A N/A 16.0 ppb (15) N/A N/A 2.8 μg/m3 (12) 15.0
 
June 11, 2021, 8 a.m. 13.4 ppb (13) 4.2 ppb (4) N/A 9.0 ppb (9) N/A N/A 15.0 ppb (14) 0.03 ppb (0) N/A 3.1 μg/m3 (13) 14.0
 
June 11, 2021, 7 a.m. 7.0 ppb (7) 1.3 ppb (2) N/A 6.0 ppb (6) N/A N/A 18.0 ppb (17) 0.03 ppb (0) N/A 3.1 μg/m3 (13) 17.0
 
June 11, 2021, 6 a.m. 6.8 ppb (7) 1.2 ppb (2) N/A 6.0 ppb (6) N/A N/A 20.0 ppb (19) 0.02 ppb (0) N/A 2.8 μg/m3 (12) 19.0
 
June 11, 2021, 5 a.m. 18.6 ppb (18) 7.4 ppb (7) N/A 11.0 ppb (11) N/A N/A 18.0 ppb (17) 0.1 ppb (2) N/A 3.0 μg/m3 (13) 18.0
 
June 11, 2021, 4 a.m. 17.9 ppb (17) 6.3 ppb (6) N/A 12.0 ppb (12) N/A N/A 20.0 ppb (19) 0.15 ppb (2) N/A 2.8 μg/m3 (12) 19.0
 
June 11, 2021, 3 a.m. 25.6 ppb (25) 11.7 ppb (12) N/A 14.0 ppb (14) N/A N/A 19.0 ppb (18) 0.33 ppb (4) N/A 2.8 μg/m3 (12) 25.0
 
June 11, 2021, 2 a.m. 25.7 ppb (25) 13.2 ppb (13) N/A 13.0 ppb (13) N/A N/A 23.0 ppb (22) 0.23 ppb (3) N/A 2.6 μg/m3 (11) 25.0
 
June 11, 2021, 1 a.m. 24.0 ppb (23) 12.3 ppb (12) N/A 12.0 ppb (12) N/A N/A 25.0 ppb (24) 0.21 ppb (3) N/A 2.5 μg/m3 (11) 24.0
 
June 11, 2021, midnight 23.0 ppb (22) 11.8 ppb (12) N/A 11.0 ppb (11) N/A N/A 26.0 ppb (25) 0.18 ppb (3) N/A 2.6 μg/m3 (11) 25.0
 
June 10, 2021, 11 p.m. 22.4 ppb (22) 11.4 ppb (11) N/A 11.0 ppb (11) N/A N/A 29.0 ppb (27) 0.11 ppb (2) N/A 2.6 μg/m3 (11) 27.0
 
June 10, 2021, 10 p.m. 12.8 ppb (13) 6.3 ppb (6) N/A 7.0 ppb (7) N/A N/A 32.0 ppb (30) 0.07 ppb (2) N/A 2.4 μg/m3 (10) 30.0
 
June 10, 2021, 9 p.m. 15.3 ppb (15) 8.1 ppb (8) N/A 7.0 ppb (7) N/A N/A 32.0 ppb (30) 0.07 ppb (2) N/A 2.6 μg/m3 (11) 30.0
 
June 10, 2021, 8 p.m. 8.1 ppb (8) 4.0 ppb (4) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (32) 0.02 ppb (0) N/A 2.6 μg/m3 (11) 32.0
 
June 10, 2021, 7 p.m. 11.7 ppb (12) 5.6 ppb (6) N/A 6.0 ppb (6) N/A N/A 30.0 ppb (28) 0.18 ppb (3) N/A 2.9 μg/m3 (13) 28.0
 
June 10, 2021, 6 p.m. 19.4 ppb (19) 10.2 ppb (10) N/A 9.0 ppb (9) N/A N/A 27.0 ppb (25) 0.06 ppb (2) N/A 2.6 μg/m3 (11) 25.0
 
June 10, 2021, 5 p.m. 22.6 ppb (22) 13.3 ppb (13) N/A 9.0 ppb (9) N/A N/A 24.0 ppb (23) 0.08 ppb (2) N/A 2.8 μg/m3 (12) 23.0
 
June 10, 2021, 4 p.m. 22.6 ppb (22) 13.0 ppb (13) N/A 10.0 ppb (10) N/A N/A 19.0 ppb (18) 0.06 ppb (2) N/A 2.9 μg/m3 (13) 22.0
 
June 10, 2021, 3 p.m. 23.7 ppb (23) 12.6 ppb (12) N/A 11.0 ppb (11) N/A N/A 17.0 ppb (16) 0.07 ppb (2) N/A 3.1 μg/m3 (13) 23.0
 
June 10, 2021, 2 p.m. 38.7 ppb (37) 24.0 ppb (23) N/A 15.0 ppb (15) N/A N/A 12.0 ppb (12) 0.14 ppb (2) N/A 3.3 μg/m3 (14) 37.0
 
June 10, 2021, 1 p.m. 10.5 ppb (10) 2.0 ppb (2) N/A 8.0 ppb (8) N/A N/A 15.0 ppb (14) N/A N/A 2.9 μg/m3 (13) 14.0
 
June 10, 2021, noon 23.1 ppb (22) 10.6 ppb (10) N/A 12.0 ppb (12) N/A N/A 11.0 ppb (11) 0.06 ppb (2) N/A 2.9 μg/m3 (13) 22.0
 
June 10, 2021, 11 a.m. 7.2 ppb (7) 1.2 ppb (2) N/A 6.0 ppb (6) N/A N/A 17.0 ppb (16) N/A N/A 2.6 μg/m3 (11) 16.0
 
June 10, 2021, 10 a.m. 15.3 ppb (15) 5.9 ppb (6) N/A 9.0 ppb (9) N/A N/A 18.0 ppb (17) N/A N/A 2.4 μg/m3 (10) 17.0
 
June 10, 2021, 9 a.m. 14.3 ppb (14) 6.0 ppb (6) N/A 8.0 ppb (8) N/A N/A 18.0 ppb (17) 0.03 ppb (0) N/A 2.5 μg/m3 (11) 17.0
 
June 10, 2021, 8 a.m. 12.3 ppb (12) 4.8 ppb (5) N/A 8.0 ppb (8) N/A N/A 22.0 ppb (21) 0.02 ppb (0) N/A 2.3 μg/m3 (10) 21.0
 
June 10, 2021, 7 a.m. 14.4 ppb (14) 6.0 ppb (6) N/A 8.0 ppb (8) N/A N/A 22.0 ppb (21) 0.01 ppb (0) N/A 2.4 μg/m3 (10) 21.0
 
June 10, 2021, 6 a.m. 18.1 ppb (18) 7.8 ppb (8) N/A 10.0 ppb (10) N/A N/A 20.0 ppb (19) 0.07 ppb (2) N/A 2.4 μg/m3 (10) 19.0
 
June 10, 2021, 5 a.m. 16.0 ppb (16) 8.2 ppb (8) N/A 8.0 ppb (8) N/A N/A 23.0 ppb (22) 0.08 ppb (2) N/A 2.3 μg/m3 (10) 22.0
 
June 10, 2021, 4 a.m. 17.0 ppb (17) 8.2 ppb (8) N/A 9.0 ppb (9) N/A N/A 24.0 ppb (23) 0.11 ppb (2) N/A 2.3 μg/m3 (10) 23.0
 
June 10, 2021, 3 a.m. 17.2 ppb (17) 9.2 ppb (9) N/A 8.0 ppb (8) N/A N/A 25.0 ppb (24) 0.2 ppb (3) N/A 2.3 μg/m3 (10) 24.0
 
June 10, 2021, 2 a.m. 19.2 ppb (19) 10.4 ppb (10) N/A 9.0 ppb (9) N/A N/A 25.0 ppb (24) 0.14 ppb (2) N/A 2.5 μg/m3 (11) 24.0
 
June 10, 2021, 1 a.m. 18.8 ppb (18) 10.9 ppb (11) N/A 8.0 ppb (8) N/A N/A 28.0 ppb (26) 0.16 ppb (3) N/A 2.5 μg/m3 (11) 26.0
 
June 10, 2021, midnight 22.1 ppb (21) 11.9 ppb (12) N/A 10.0 ppb (10) N/A N/A 28.0 ppb (26) 0.2 ppb (3) N/A 2.6 μg/m3 (11) 26.0
 
June 9, 2021, 11 p.m. 24.5 ppb (24) 13.6 ppb (13) N/A 11.0 ppb (11) N/A N/A 28.0 ppb (26) 0.15 ppb (2) N/A 3.1 μg/m3 (13) 26.0
 
June 9, 2021, 10 p.m. 17.4 ppb (17) 9.0 ppb (9) N/A 9.0 ppb (9) N/A N/A 33.0 ppb (31) 0.08 ppb (2) N/A 2.9 μg/m3 (13) 31.0
 
June 9, 2021, 9 p.m. 19.4 ppb (19) 11.0 ppb (11) N/A 8.0 ppb (8) N/A N/A 31.0 ppb (29) 0.1 ppb (2) N/A 2.8 μg/m3 (12) 29.0
 
June 9, 2021, 8 p.m. 14.5 ppb (14) 8.0 ppb (8) N/A 7.0 ppb (7) N/A N/A 33.0 ppb (31) 0.09 ppb (2) N/A 2.5 μg/m3 (11) 31.0
 
June 9, 2021, 7 p.m. 5.8 ppb (6) 2.8 ppb (3) N/A 3.0 ppb (3) N/A N/A 34.0 ppb (32) 0.04 ppb (0) N/A 2.7 μg/m3 (12) 32.0
 
June 9, 2021, 6 p.m. 20.4 ppb (20) 11.6 ppb (11) N/A 9.0 ppb (9) N/A N/A 26.0 ppb (25) 0.08 ppb (2) N/A 3.1 μg/m3 (13) 25.0
 
June 9, 2021, 5 p.m. 12.2 ppb (12) 6.1 ppb (6) N/A 6.0 ppb (6) N/A N/A 28.0 ppb (26) 0.03 ppb (0) N/A 2.9 μg/m3 (13) 26.0
 
June 9, 2021, 4 p.m. 7.1 ppb (7) 2.8 ppb (3) N/A 4.0 ppb (4) N/A N/A 25.0 ppb (24) 0.01 ppb (0) N/A 3.6 μg/m3 (16) 24.0
 
June 9, 2021, 3 p.m. 18.6 ppb (18) 9.7 ppb (10) N/A 9.0 ppb (9) N/A N/A 19.0 ppb (18) 0.04 ppb (0) N/A 3.9 μg/m3 (17) 18.0
 
June 9, 2021, 2 p.m. 32.0 ppb (31) 20.0 ppb (19) N/A 12.0 ppb (12) N/A N/A 14.0 ppb (13) 0.19 ppb (3) N/A 4.3 μg/m3 (18) 31.0
 
June 9, 2021, 1 p.m. 37.4 ppb (36) 23.2 ppb (22) N/A 14.0 ppb (14) N/A N/A 8.0 ppb (8) 0.18 ppb (3) N/A 3.9 μg/m3 (17) 36.0
 
June 9, 2021, noon 7.1 ppb (7) 0.9 ppb (1) N/A 6.0 ppb (6) N/A N/A 14.0 ppb (13) 0.01 ppb (0) N/A 3.1 μg/m3 (13) 13.0
 
June 9, 2021, 11 a.m. 8.6 ppb (9) 1.7 ppb (2) N/A 7.0 ppb (7) N/A N/A 17.0 ppb (16) N/A N/A 3.1 μg/m3 (13) 16.0
 
June 9, 2021, 10 a.m. 4.3 ppb (5) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 19.0 ppb (18) N/A N/A 3.4 μg/m3 (15) 18.0
 
June 9, 2021, 9 a.m. 4.3 ppb (5) 0.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 20.0 ppb (19) N/A N/A 3.4 μg/m3 (15) 19.0
 
June 9, 2021, 8 a.m. 4.7 ppb (5) 0.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 22.0 ppb (21) N/A N/A 2.9 μg/m3 (13) 21.0
 
June 9, 2021, 7 a.m. 9.2 ppb (9) 2.5 ppb (3) N/A 7.0 ppb (7) N/A N/A 25.0 ppb (24) N/A N/A 2.8 μg/m3 (12) 24.0
 
June 9, 2021, 6 a.m. 12.9 ppb (13) 4.6 ppb (5) N/A 8.0 ppb (8) N/A N/A 25.0 ppb (24) 0.09 ppb (2) N/A 2.7 μg/m3 (12) 24.0
 
June 9, 2021, 5 a.m. 13.3 ppb (13) 4.3 ppb (5) N/A 9.0 ppb (9) N/A N/A 25.0 ppb (24) 0.08 ppb (2) N/A 2.7 μg/m3 (12) 24.0
 
June 9, 2021, 4 a.m. 18.0 ppb (17) 7.4 ppb (7) N/A 11.0 ppb (11) N/A N/A 24.0 ppb (23) 0.09 ppb (2) N/A 2.6 μg/m3 (11) 23.0
 
June 9, 2021, 3 a.m. 17.0 ppb (17) 8.0 ppb (8) N/A 9.0 ppb (9) N/A N/A 26.0 ppb (25) 0.14 ppb (2) N/A 2.7 μg/m3 (12) 25.0
 
June 9, 2021, 2 a.m. 18.1 ppb (18) 8.5 ppb (9) N/A 10.0 ppb (10) N/A N/A 27.0 ppb (25) 0.14 ppb (2) N/A 2.6 μg/m3 (11) 25.0
 
June 9, 2021, 1 a.m. 20.5 ppb (20) 11.6 ppb (11) N/A 9.0 ppb (9) N/A N/A 28.0 ppb (26) 0.12 ppb (2) N/A 2.5 μg/m3 (11) 26.0
 
June 9, 2021, midnight 19.4 ppb (19) 11.3 ppb (11) N/A 8.0 ppb (8) N/A N/A 29.0 ppb (27) 0.15 ppb (2) N/A 2.4 μg/m3 (10) 27.0
 
June 8, 2021, 11 p.m. 21.9 ppb (21) 13.7 ppb (13) N/A 8.0 ppb (8) N/A N/A 29.0 ppb (27) 0.15 ppb (2) N/A 2.6 μg/m3 (11) 27.0
 
June 8, 2021, 10 p.m. 21.5 ppb (21) 10.9 ppb (11) N/A 11.0 ppb (11) N/A N/A 30.0 ppb (28) 0.15 ppb (2) N/A 3.0 μg/m3 (13) 28.0
 
June 8, 2021, 9 p.m. 4.2 ppb (4) 1.3 ppb (2) N/A 3.0 ppb (3) N/A N/A 33.0 ppb (31) 0.0 ppb (0) N/A 3.2 μg/m3 (14) 31.0
 
June 8, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 3.5 μg/m3 (15) 25.0
 
June 8, 2021, 7 p.m. 8.5 ppb (9) 3.4 ppb (4) N/A 5.0 ppb (5) N/A N/A 28.0 ppb (26) 0.04 ppb (0) N/A 3.6 μg/m3 (16) 26.0
 
June 8, 2021, 6 p.m. 10.4 ppb (10) 4.3 ppb (5) N/A 6.0 ppb (6) N/A N/A 25.0 ppb (24) 0.05 ppb (2) N/A 3.7 μg/m3 (16) 24.0
 
June 8, 2021, 5 p.m. 31.8 ppb (30) 19.5 ppb (19) N/A 13.0 ppb (13) N/A N/A 18.0 ppb (17) 0.12 ppb (2) N/A 4.5 μg/m3 (19) 30.0
 
June 8, 2021, 4 p.m. 35.6 ppb (34) 22.9 ppb (22) N/A 13.0 ppb (13) N/A N/A 13.0 ppb (13) 0.17 ppb (3) N/A 4.7 μg/m3 (20) 34.0
 
June 8, 2021, 3 p.m. 36.2 ppb (35) 23.6 ppb (23) N/A 13.0 ppb (13) N/A N/A 13.0 ppb (13) 0.18 ppb (3) N/A 4.4 μg/m3 (19) 35.0
 
June 8, 2021, 2 p.m. 11.5 ppb (11) 4.6 ppb (5) N/A 7.0 ppb (7) N/A N/A 11.0 ppb (11) 0.07 ppb (2) N/A 4.2 μg/m3 (18) 18.0
 
June 8, 2021, 1 p.m. 7.0 ppb (7) 1.8 ppb (2) N/A 5.0 ppb (5) N/A N/A 12.0 ppb (12) 0.04 ppb (0) N/A 3.7 μg/m3 (16) 16.0
 
June 8, 2021, noon 7.1 ppb (7) 1.3 ppb (2) N/A 6.0 ppb (6) N/A N/A 12.0 ppb (12) 0.07 ppb (2) N/A 3.7 μg/m3 (16) 16.0