ID: 2374

AQSQID: 410670005

Site Name: Portland Near Road

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

Updated: Oct. 29, 2020, 7:39 a.m.

Location: Lake Oswego (Swest Bradbury Court), OR

Reporting: True, Located: True

Current AQI: 69.0

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
Oct. 14, 2020, 3 p.m. 20.0 ppb (19) 9.0 ppb (9) N/A 11.0 ppb (11) N/A N/A 5.0 ppb (5) N/A N/A 10.4 μg/m3 (44) 43.0
 
Oct. 14, 2020, 2 p.m. 31.6 ppb (30) 17.8 ppb (17) N/A 14.0 ppb (14) N/A N/A 1.0 ppb (1) N/A N/A 11.2 μg/m3 (47) 47.0
 
Oct. 14, 2020, 1 p.m. 20.8 ppb (20) 10.0 ppb (10) N/A 11.0 ppb (11) N/A N/A 2.0 ppb (2) N/A N/A 11.4 μg/m3 (48) 48.0
 
Oct. 14, 2020, noon 26.6 ppb (26) 12.2 ppb (12) N/A 14.0 ppb (14) N/A N/A 4.0 ppb (4) N/A N/A 11.7 μg/m3 (49) 49.0
 
Oct. 14, 2020, 11 a.m. 13.4 ppb (13) 5.8 ppb (6) N/A 8.0 ppb (8) N/A N/A 5.0 ppb (5) N/A N/A 7.9 μg/m3 (33) 33.0
 
Oct. 14, 2020, 10 a.m. 6.6 ppb (7) 1.1 ppb (2) N/A 5.0 ppb (5) N/A N/A 6.0 ppb (6) N/A N/A 7.6 μg/m3 (32) 32.0
 
Oct. 14, 2020, 9 a.m. 8.2 ppb (8) 1.1 ppb (2) N/A 7.0 ppb (7) N/A N/A 4.0 ppb (4) N/A N/A 8.5 μg/m3 (36) 35.0
 
Oct. 14, 2020, 8 a.m. 17.4 ppb (17) 5.3 ppb (5) N/A 12.0 ppb (12) N/A N/A 4.0 ppb (4) N/A N/A 8.0 μg/m3 (34) 33.0
 
Oct. 14, 2020, 7 a.m. 19.2 ppb (19) 3.9 ppb (4) N/A 15.0 ppb (15) N/A N/A 9.0 ppb (9) N/A N/A 7.7 μg/m3 (33) 32.0
 
Oct. 14, 2020, 1 a.m. 32.2 ppb (31) 13.4 ppb (13) N/A 19.0 ppb (18) N/A N/A 19.0 ppb (18) N/A N/A 6.3 μg/m3 (27) 30.0
 
Oct. 14, 2020, midnight 25.2 ppb (24) 12.1 ppb (12) N/A 13.0 ppb (13) N/A N/A 24.0 ppb (23) N/A N/A 5.6 μg/m3 (24) 23.0
 
Oct. 13, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A N/A 5.8 μg/m3 (25) 24.0
 
Oct. 13, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 5.0 μg/m3 (21) 21.0
 
Oct. 13, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A 6.2 μg/m3 (26) 26.0
 
Oct. 13, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A N/A 6.7 μg/m3 (28) 28.0
 
Oct. 13, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A N/A 5.2 μg/m3 (22) 22.0
 
Oct. 13, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A N/A 5.0 μg/m3 (21) 21.0
 
Oct. 13, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A N/A 4.9 μg/m3 (21) 20.0
 
Oct. 13, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A N/A 3.9 μg/m3 (17) 16.0
 
Oct. 13, 2020, 3 p.m. 10.7 ppb (11) 3.7 ppb (4) N/A 7.0 ppb (7) N/A N/A 21.0 ppb (20) N/A N/A 3.7 μg/m3 (16) 16.0
 
Oct. 13, 2020, 2 p.m. 8.5 ppb (9) 2.9 ppb (3) N/A 6.0 ppb (6) N/A N/A 21.0 ppb (20) N/A N/A 3.7 μg/m3 (16) 16.0
 
Oct. 13, 2020, 1 p.m. 5.5 ppb (6) 1.5 ppb (2) N/A 4.0 ppb (4) N/A N/A 23.0 ppb (22) N/A N/A 3.6 μg/m3 (16) 18.0
 
Oct. 13, 2020, noon 12.0 ppb (12) 5.0 ppb (5) N/A 7.0 ppb (7) N/A N/A 17.0 ppb (16) N/A N/A 4.0 μg/m3 (17) 17.0
 
Oct. 13, 2020, 11 a.m. 12.5 ppb (12) 5.8 ppb (6) N/A 7.0 ppb (7) N/A N/A 15.0 ppb (14) N/A N/A 4.1 μg/m3 (18) 17.0
 
Oct. 13, 2020, 10 a.m. 6.3 ppb (6) 2.1 ppb (2) N/A 4.0 ppb (4) N/A N/A 15.0 ppb (14) N/A N/A 4.6 μg/m3 (20) 19.0
 
Oct. 13, 2020, 9 a.m. 4.9 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 10.0 ppb (10) N/A N/A 6.2 μg/m3 (26) 26.0
 
Oct. 13, 2020, 8 a.m. 7.5 ppb (8) 2.3 ppb (3) N/A 5.0 ppb (5) N/A N/A 8.0 ppb (8) N/A N/A 5.7 μg/m3 (24) 24.0
 
Oct. 13, 2020, 7 a.m. 4.0 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 10.0 ppb (10) N/A N/A 6.0 μg/m3 (25) 25.0
 
Oct. 13, 2020, 6 a.m. 5.6 ppb (6) 0.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 10.0 ppb (10) N/A N/A 7.1 μg/m3 (30) 30.0
 
Oct. 13, 2020, 5 a.m. 5.5 ppb (6) 0.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 11.0 ppb (11) N/A N/A 8.2 μg/m3 (35) 34.0
 
Oct. 13, 2020, 4 a.m. 6.8 ppb (7) 0.2 ppb (1) N/A 7.0 ppb (7) N/A N/A 11.0 ppb (11) N/A N/A 8.1 μg/m3 (34) 34.0
 
Oct. 13, 2020, 3 a.m. 7.0 ppb (7) 0.4 ppb (1) N/A 7.0 ppb (7) N/A N/A 15.0 ppb (14) N/A N/A 8.3 μg/m3 (35) 35.0
 
Oct. 13, 2020, 2 a.m. 7.8 ppb (8) 0.8 ppb (1) N/A 7.0 ppb (7) N/A N/A 19.0 ppb (18) N/A N/A 8.7 μg/m3 (37) 36.0
 
Oct. 13, 2020, 1 a.m. 5.9 ppb (6) 0.5 ppb (1) N/A 5.0 ppb (5) N/A N/A 26.0 ppb (25) N/A N/A 6.7 μg/m3 (28) 28.0
 
Oct. 13, 2020, midnight 4.6 ppb (5) 0.4 ppb (1) N/A 4.0 ppb (4) N/A N/A 32.0 ppb (30) N/A N/A 6.3 μg/m3 (27) 26.0
 
Oct. 12, 2020, 11 p.m. 23.9 ppb (23) 12.1 ppb (12) N/A 12.0 ppb (12) N/A N/A 27.0 ppb (25) N/A N/A 5.5 μg/m3 (23) 23.0
 
Oct. 12, 2020, 10 p.m. 36.4 ppb (35) 20.5 ppb (20) N/A 16.0 ppb (16) N/A N/A 24.0 ppb (23) N/A N/A 5.6 μg/m3 (24) 34.0
 
Oct. 12, 2020, 9 p.m. 32.6 ppb (31) 18.5 ppb (18) N/A 14.0 ppb (14) N/A N/A 26.0 ppb (25) N/A N/A 4.9 μg/m3 (21) 30.0
 
Oct. 12, 2020, 8 p.m. 33.3 ppb (32) 18.7 ppb (18) N/A 15.0 ppb (15) N/A N/A 24.0 ppb (23) N/A N/A 5.0 μg/m3 (21) 31.0
 
Oct. 12, 2020, 7 p.m. 39.9 ppb (38) 23.5 ppb (23) N/A 16.0 ppb (16) N/A N/A 22.0 ppb (21) N/A N/A 5.3 μg/m3 (23) 37.0
 
Oct. 12, 2020, 6 p.m. 49.7 ppb (47) 32.5 ppb (31) N/A 17.0 ppb (17) N/A N/A 17.0 ppb (16) N/A N/A 5.8 μg/m3 (25) 46.0
 
Oct. 12, 2020, 5 p.m. 55.3 ppb (53) 35.7 ppb (34) N/A 20.0 ppb (19) N/A N/A 12.0 ppb (12) N/A N/A 5.7 μg/m3 (24) 51.0
 
Oct. 12, 2020, 4 p.m. 61.9 ppb (60) 38.9 ppb (37) N/A 23.0 ppb (22) N/A N/A 9.0 ppb (9) N/A N/A 5.3 μg/m3 (23) 58.0
 
Oct. 12, 2020, 3 p.m. 55.9 ppb (54) 37.1 ppb (35) N/A 19.0 ppb (18) N/A N/A 11.0 ppb (11) N/A N/A 4.7 μg/m3 (20) 52.0
 
Oct. 12, 2020, 2 p.m. 75.7 ppb (75) 50.8 ppb (48) N/A 25.0 ppb (24) N/A N/A 3.0 ppb (3) N/A N/A 4.9 μg/m3 (21) 73.0
 
Oct. 12, 2020, 1 p.m. 55.5 ppb (53) 31.2 ppb (30) N/A 24.0 ppb (23) N/A N/A 3.0 ppb (3) N/A N/A 4.2 μg/m3 (18) 52.0
 
Oct. 12, 2020, noon 46.1 ppb (44) 26.3 ppb (25) N/A 20.0 ppb (19) N/A N/A 10.0 ppb (10) N/A N/A 4.2 μg/m3 (18) 43.0
 
Oct. 12, 2020, 11 a.m. 27.9 ppb (27) 13.9 ppb (14) N/A 14.0 ppb (14) N/A N/A 12.0 ppb (12) N/A N/A 4.2 μg/m3 (18) 26.0
 
Oct. 12, 2020, 10 a.m. 13.3 ppb (13) 4.7 ppb (5) N/A 9.0 ppb (9) N/A N/A 19.0 ppb (18) N/A N/A 3.8 μg/m3 (16) 16.0
 
Oct. 12, 2020, 9 a.m. 5.5 ppb (6) 1.7 ppb (2) N/A 4.0 ppb (4) N/A N/A 23.0 ppb (22) N/A N/A 4.2 μg/m3 (18) 18.0
 
Oct. 12, 2020, 8 a.m. 2.5 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 25.0 ppb (24) N/A N/A 4.7 μg/m3 (20) 20.0
 
Oct. 12, 2020, 7 a.m. 2.2 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 26.0 ppb (25) N/A N/A 4.7 μg/m3 (20) 20.0
 
Oct. 12, 2020, 6 a.m. 4.7 ppb (5) 1.2 ppb (2) N/A 4.0 ppb (4) N/A N/A 25.0 ppb (24) N/A N/A 2.8 μg/m3 (12) 19.0
 
Oct. 12, 2020, 5 a.m. 4.6 ppb (5) 1.6 ppb (2) N/A 3.0 ppb (3) N/A N/A 27.0 ppb (25) N/A N/A 3.0 μg/m3 (13) 21.0
 
Oct. 12, 2020, 4 a.m. 3.6 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 28.0 ppb (26) N/A N/A 3.3 μg/m3 (14) 22.0
 
Oct. 12, 2020, 3 a.m. 4.5 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 27.0 ppb (25) N/A N/A 3.5 μg/m3 (15) 21.0
 
Oct. 12, 2020, 2 a.m. 5.9 ppb (6) 1.2 ppb (2) N/A 5.0 ppb (5) N/A N/A 26.0 ppb (25) N/A N/A 3.9 μg/m3 (17) 20.0
 
Oct. 12, 2020, 1 a.m. 8.0 ppb (8) 2.3 ppb (3) N/A 6.0 ppb (6) N/A N/A 24.0 ppb (23) N/A N/A 4.3 μg/m3 (18) 18.0
 
Oct. 12, 2020, midnight 8.8 ppb (9) 3.1 ppb (3) N/A 6.0 ppb (6) N/A N/A 24.0 ppb (23) N/A N/A 4.1 μg/m3 (18) 18.0
 
Oct. 11, 2020, 11 p.m. 5.0 ppb (5) 1.5 ppb (2) N/A 4.0 ppb (4) N/A N/A 25.0 ppb (24) N/A N/A 4.6 μg/m3 (20) 19.0
 
Oct. 11, 2020, 10 p.m. 6.0 ppb (6) 1.9 ppb (2) N/A 4.0 ppb (4) N/A N/A 24.0 ppb (23) N/A N/A 4.9 μg/m3 (21) 20.0
 
Oct. 11, 2020, 9 p.m. 6.7 ppb (7) 2.0 ppb (2) N/A 5.0 ppb (5) N/A N/A 24.0 ppb (23) N/A N/A 5.4 μg/m3 (23) 23.0
 
Oct. 11, 2020, 8 p.m. 4.6 ppb (5) 1.3 ppb (2) N/A 3.0 ppb (3) N/A N/A 25.0 ppb (24) N/A N/A 5.9 μg/m3 (25) 25.0
 
Oct. 11, 2020, 7 p.m. 4.6 ppb (5) 1.3 ppb (2) N/A 3.0 ppb (3) N/A N/A 24.0 ppb (23) N/A N/A 5.8 μg/m3 (25) 24.0
 
Oct. 11, 2020, 6 p.m. 5.2 ppb (5) 1.3 ppb (2) N/A 4.0 ppb (4) N/A N/A 23.0 ppb (22) N/A N/A 6.7 μg/m3 (28) 28.0
 
Oct. 11, 2020, 5 p.m. 6.0 ppb (6) 1.5 ppb (2) N/A 5.0 ppb (5) N/A N/A 23.0 ppb (22) N/A N/A 4.7 μg/m3 (20) 20.0
 
Oct. 11, 2020, 4 p.m. 5.7 ppb (6) 1.4 ppb (2) N/A 4.0 ppb (4) N/A N/A 23.0 ppb (22) N/A N/A 4.3 μg/m3 (18) 18.0
 
Oct. 11, 2020, 3 p.m. 11.7 ppb (12) 3.6 ppb (4) N/A 8.0 ppb (8) N/A N/A 21.0 ppb (20) N/A N/A 4.3 μg/m3 (18) 18.0
 
Oct. 11, 2020, 2 p.m. 11.8 ppb (12) 2.9 ppb (3) N/A 9.0 ppb (9) N/A N/A 19.0 ppb (18) N/A N/A 4.0 μg/m3 (17) 17.0
 
Oct. 11, 2020, 1 p.m. 4.8 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A 23.0 ppb (22) N/A N/A 4.7 μg/m3 (20) 20.0
 
Oct. 11, 2020, noon 4.4 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A 21.0 ppb (20) N/A N/A 4.8 μg/m3 (20) 20.0
 
Oct. 11, 2020, 11 a.m. 6.1 ppb (6) 1.5 ppb (2) N/A 5.0 ppb (5) N/A N/A 22.0 ppb (21) N/A N/A 4.0 μg/m3 (17) 17.0
 
Oct. 11, 2020, 10 a.m. 4.0 ppb (4) 0.4 ppb (1) N/A 4.0 ppb (4) N/A N/A 25.0 ppb (24) N/A N/A 3.7 μg/m3 (16) 19.0
 
Oct. 11, 2020, 9 a.m. 3.3 ppb (4) 0.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 26.0 ppb (25) N/A N/A 3.8 μg/m3 (16) 20.0
 
Oct. 11, 2020, 8 a.m. 4.5 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 25.0 ppb (24) N/A N/A 3.9 μg/m3 (17) 19.0
 
Oct. 11, 2020, 6 a.m. 12.4 ppb (12) 2.7 ppb (3) N/A 10.0 ppb (10) N/A N/A 20.0 ppb (19) N/A N/A 5.0 μg/m3 (21) 21.0
 
Oct. 11, 2020, 5 a.m. 12.4 ppb (12) 3.9 ppb (4) N/A 9.0 ppb (9) N/A N/A 24.0 ppb (23) N/A N/A 4.9 μg/m3 (21) 20.0
 
Oct. 11, 2020, 4 a.m. 13.0 ppb (13) 4.0 ppb (4) N/A 9.0 ppb (9) N/A N/A 26.0 ppb (25) N/A N/A 4.0 μg/m3 (17) 20.0
 
Oct. 11, 2020, 3 a.m. 16.7 ppb (16) 4.5 ppb (5) N/A 12.0 ppb (12) N/A N/A 25.0 ppb (24) N/A N/A 4.6 μg/m3 (20) 19.0
 
Oct. 11, 2020, 2 a.m. 16.5 ppb (16) 4.2 ppb (4) N/A 12.0 ppb (12) N/A N/A 22.0 ppb (21) N/A N/A 4.6 μg/m3 (20) 19.0
 
Oct. 11, 2020, 1 a.m. 21.7 ppb (21) 7.1 ppb (7) N/A 15.0 ppb (15) N/A N/A 24.0 ppb (23) N/A N/A 4.6 μg/m3 (20) 20.0
 
Oct. 11, 2020, midnight 17.2 ppb (17) 7.5 ppb (8) N/A 10.0 ppb (10) N/A N/A 30.0 ppb (28) N/A N/A 3.9 μg/m3 (17) 23.0
 
Oct. 10, 2020, 11 p.m. 19.3 ppb (19) 9.5 ppb (9) N/A 10.0 ppb (10) N/A N/A 32.0 ppb (30) N/A N/A 3.7 μg/m3 (16) 25.0
 
Oct. 10, 2020, 10 p.m. 15.8 ppb (15) 7.6 ppb (8) N/A 8.0 ppb (8) N/A N/A 34.0 ppb (32) N/A N/A 3.6 μg/m3 (16) 26.0
 
Oct. 10, 2020, 9 p.m. 17.6 ppb (17) 8.2 ppb (8) N/A 9.0 ppb (9) N/A N/A 29.0 ppb (27) N/A N/A 4.6 μg/m3 (20) 22.0
 
Oct. 10, 2020, 8 p.m. 11.9 ppb (12) 4.0 ppb (4) N/A 8.0 ppb (8) N/A N/A 31.0 ppb (29) N/A N/A 5.9 μg/m3 (25) 25.0
 
Oct. 10, 2020, 7 p.m. 13.9 ppb (14) 5.1 ppb (5) N/A 9.0 ppb (9) N/A N/A 29.0 ppb (27) N/A N/A 5.8 μg/m3 (25) 24.0
 
Oct. 10, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 5.2 μg/m3 (22) 22.0
 
Oct. 10, 2020, 5 p.m. 29.9 ppb (29) 11.4 ppb (11) N/A 19.0 ppb (18) N/A N/A 21.0 ppb (20) N/A N/A 4.4 μg/m3 (19) 28.0
 
Oct. 10, 2020, 4 p.m. 19.5 ppb (19) 6.0 ppb (6) N/A 14.0 ppb (14) N/A N/A 22.0 ppb (21) N/A N/A 3.8 μg/m3 (16) 18.0
 
Oct. 10, 2020, 3 p.m. 24.4 ppb (24) 12.9 ppb (13) N/A 11.0 ppb (11) N/A N/A 15.0 ppb (14) N/A N/A 5.6 μg/m3 (24) 23.0
 
Oct. 10, 2020, 2 p.m. 19.9 ppb (19) 10.3 ppb (10) N/A 10.0 ppb (10) N/A N/A 12.0 ppb (12) N/A N/A 7.4 μg/m3 (31) 31.0
 
Oct. 10, 2020, 1 p.m. 6.7 ppb (7) 2.1 ppb (2) N/A 5.0 ppb (5) N/A N/A 14.0 ppb (13) N/A N/A 6.5 μg/m3 (28) 27.0
 
Oct. 10, 2020, noon 4.6 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 15.0 ppb (14) N/A N/A 6.6 μg/m3 (28) 28.0
 
Oct. 10, 2020, 11 a.m. 6.1 ppb (6) 2.9 ppb (3) N/A 3.0 ppb (3) N/A N/A 16.0 ppb (15) N/A N/A 8.7 μg/m3 (37) 36.0
 
Oct. 10, 2020, 10 a.m. 4.1 ppb (4) 1.2 ppb (2) N/A 3.0 ppb (3) N/A N/A 17.0 ppb (16) N/A N/A 9.2 μg/m3 (39) 38.0
 
Oct. 10, 2020, 9 a.m. 1.2 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 19.0 ppb (18) N/A N/A 7.7 μg/m3 (33) 32.0
 
Oct. 10, 2020, 8 a.m. 0.7 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 20.0 ppb (19) N/A N/A 6.4 μg/m3 (27) 27.0
 
Oct. 10, 2020, 6 a.m. 3.5 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 21.0 ppb (20) N/A N/A 10.7 μg/m3 (45) 45.0
 
Oct. 10, 2020, 5 a.m. 9.3 ppb (9) 3.2 ppb (4) N/A 6.0 ppb (6) N/A N/A 18.0 ppb (17) N/A N/A 11.1 μg/m3 (47) 46.0
 
Oct. 10, 2020, 4 a.m. 10.9 ppb (11) 5.0 ppb (5) N/A 6.0 ppb (6) N/A N/A 13.0 ppb (13) N/A N/A 5.1 μg/m3 (22) 21.0
 
Oct. 10, 2020, 3 a.m. 14.6 ppb (14) 6.7 ppb (7) N/A 8.0 ppb (8) N/A N/A 13.0 ppb (13) N/A N/A 4.3 μg/m3 (18) 18.0
 
Oct. 10, 2020, 2 a.m. 12.2 ppb (12) 2.6 ppb (3) N/A 10.0 ppb (10) N/A N/A 13.0 ppb (13) N/A N/A 8.7 μg/m3 (37) 36.0
 
Oct. 10, 2020, 1 a.m. 13.6 ppb (13) 2.5 ppb (3) N/A 11.0 ppb (11) N/A N/A 16.0 ppb (15) N/A N/A 10.1 μg/m3 (43) 42.0
 
Oct. 10, 2020, midnight 26.5 ppb (25) 12.7 ppb (12) N/A 14.0 ppb (14) N/A N/A 15.0 ppb (14) N/A N/A 8.5 μg/m3 (36) 35.0
 
Oct. 9, 2020, 11 p.m. 21.4 ppb (21) 10.6 ppb (10) N/A 11.0 ppb (11) N/A N/A 19.0 ppb (18) N/A N/A 7.2 μg/m3 (31) 30.0
 
Oct. 9, 2020, 10 p.m. 20.1 ppb (19) 11.1 ppb (11) N/A 9.0 ppb (9) N/A N/A 20.0 ppb (19) N/A N/A 6.3 μg/m3 (27) 26.0
 
Oct. 9, 2020, 9 p.m. 18.7 ppb (18) 11.3 ppb (11) N/A 7.0 ppb (7) N/A N/A 19.0 ppb (18) N/A N/A 8.1 μg/m3 (34) 34.0
 
Oct. 9, 2020, 8 p.m. 27.4 ppb (26) 17.3 ppb (17) N/A 10.0 ppb (10) N/A N/A 17.0 ppb (16) N/A N/A 12.0 μg/m3 (50) 50.0
 
Oct. 9, 2020, 7 p.m. 24.6 ppb (24) 16.5 ppb (16) N/A 8.0 ppb (8) N/A N/A 15.0 ppb (14) N/A N/A 11.2 μg/m3 (47) 47.0
 
Oct. 9, 2020, 6 p.m. 21.3 ppb (21) 14.1 ppb (14) N/A 7.0 ppb (7) N/A N/A 11.0 ppb (11) N/A N/A 11.8 μg/m3 (50) 49.0
 
Oct. 9, 2020, 5 p.m. 33.5 ppb (32) 25.8 ppb (25) N/A 8.0 ppb (8) N/A N/A 6.0 ppb (6) N/A N/A 12.5 μg/m3 (52) 51.0
 
Oct. 9, 2020, 4 p.m. 14.0 ppb (14) 9.8 ppb (10) N/A 4.0 ppb (4) N/A N/A 5.0 ppb (5) N/A N/A 10.6 μg/m3 (45) 44.0
 
Oct. 9, 2020, 3 p.m. 20.4 ppb (20) 15.5 ppb (15) N/A 5.0 ppb (5) N/A N/A 2.0 ppb (2) N/A N/A 10.3 μg/m3 (43) 43.0
 
Oct. 9, 2020, 2 p.m. 15.1 ppb (15) 10.2 ppb (10) N/A 5.0 ppb (5) N/A N/A 1.0 ppb (1) N/A N/A 10.3 μg/m3 (43) 43.0
 
Oct. 9, 2020, 1 p.m. 19.1 ppb (19) 13.8 ppb (14) N/A 5.0 ppb (5) N/A N/A 1.0 ppb (1) N/A N/A 9.9 μg/m3 (42) 41.0
 
Oct. 9, 2020, noon 20.5 ppb (20) 15.4 ppb (15) N/A 5.0 ppb (5) N/A N/A 1.0 ppb (1) N/A N/A 9.9 μg/m3 (42) 41.0
 
Oct. 9, 2020, 11 a.m. 15.0 ppb (15) 9.1 ppb (9) N/A 6.0 ppb (6) N/A N/A 1.0 ppb (1) N/A N/A 9.8 μg/m3 (41) 41.0
 
Oct. 9, 2020, 10 a.m. 14.2 ppb (14) 7.3 ppb (7) N/A 7.0 ppb (7) N/A N/A 1.0 ppb (1) N/A N/A 9.1 μg/m3 (38) 38.0
 
Oct. 9, 2020, 9 a.m. 10.8 ppb (11) 2.9 ppb (3) N/A 8.0 ppb (8) N/A N/A 1.0 ppb (1) N/A N/A 9.7 μg/m3 (41) 40.0
 
Oct. 9, 2020, 8 a.m. 7.9 ppb (8) 0.9 ppb (1) N/A 7.0 ppb (7) N/A N/A 4.0 ppb (4) N/A N/A 10.4 μg/m3 (44) 43.0
 
Oct. 9, 2020, 7 a.m. 6.9 ppb (7) 0.7 ppb (1) N/A 6.0 ppb (6) N/A N/A 6.0 ppb (6) N/A N/A 9.9 μg/m3 (42) 41.0
 
Oct. 9, 2020, 6 a.m. 11.5 ppb (11) 2.3 ppb (3) N/A 9.0 ppb (9) N/A N/A 4.0 ppb (4) N/A N/A 9.9 μg/m3 (42) 41.0
 
Oct. 9, 2020, 5 a.m. 12.5 ppb (12) 2.3 ppb (3) N/A 10.0 ppb (10) N/A N/A 3.0 ppb (3) N/A N/A 9.9 μg/m3 (42) 41.0
 
Oct. 9, 2020, 4 a.m. 11.9 ppb (12) 1.5 ppb (2) N/A 10.0 ppb (10) N/A N/A 5.0 ppb (5) N/A N/A 8.8 μg/m3 (37) 37.0
 
Oct. 9, 2020, 3 a.m. 11.3 ppb (11) 2.0 ppb (2) N/A 9.0 ppb (9) N/A N/A 8.0 ppb (8) N/A N/A 8.6 μg/m3 (36) 36.0
 
Oct. 9, 2020, 2 a.m. 8.7 ppb (9) 0.9 ppb (1) N/A 8.0 ppb (8) N/A N/A 10.0 ppb (10) N/A N/A 7.8 μg/m3 (33) 32.0
 
Oct. 9, 2020, 1 a.m. 10.7 ppb (11) 2.0 ppb (2) N/A 9.0 ppb (9) N/A N/A 11.0 ppb (11) N/A N/A 7.1 μg/m3 (30) 30.0
 
Oct. 9, 2020, midnight 6.0 ppb (6) 1.2 ppb (2) N/A 5.0 ppb (5) N/A N/A 17.0 ppb (16) N/A N/A 6.8 μg/m3 (29) 28.0
 
Oct. 8, 2020, 11 p.m. 8.2 ppb (8) 2.8 ppb (3) N/A 5.0 ppb (5) N/A N/A 16.0 ppb (15) N/A N/A 7.1 μg/m3 (30) 30.0
 
Oct. 8, 2020, 10 p.m. 11.6 ppb (11) 5.4 ppb (6) N/A 6.0 ppb (6) N/A N/A N/A N/A N/A 7.9 μg/m3 (33) 33.0
 
Oct. 8, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.3 μg/m3 (31) 30.0
 
Oct. 8, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.3 μg/m3 (31) 30.0
 
Oct. 8, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.3 μg/m3 (31) 30.0
 
Oct. 8, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.7 μg/m3 (24) 24.0
 
Oct. 8, 2020, 5 p.m. 48.5 ppb (46) 32.2 ppb (31) N/A 16.0 ppb (16) N/A N/A 8.0 ppb (8) N/A N/A 6.1 μg/m3 (26) 45.0
 
Oct. 8, 2020, 4 p.m. 43.4 ppb (41) 29.0 ppb (28) N/A 15.0 ppb (15) N/A N/A 7.0 ppb (7) N/A N/A 7.2 μg/m3 (31) 40.0
 
Oct. 8, 2020, 3 p.m. 55.0 ppb (53) 37.8 ppb (36) N/A 17.0 ppb (17) N/A N/A 5.0 ppb (5) N/A N/A 7.8 μg/m3 (33) 51.0
 
Oct. 8, 2020, 2 p.m. 65.7 ppb (64) 46.3 ppb (44) N/A 19.0 ppb (18) N/A N/A 4.0 ppb (4) N/A N/A 8.6 μg/m3 (36) 62.0
 
Oct. 8, 2020, 1 p.m. 11.2 ppb (11) 3.3 ppb (4) N/A 8.0 ppb (8) N/A N/A 7.0 ppb (7) N/A N/A 8.6 μg/m3 (36) 36.0
 
Oct. 8, 2020, noon 17.5 ppb (17) 8.3 ppb (8) N/A 9.0 ppb (9) N/A N/A 6.0 ppb (6) N/A N/A 8.4 μg/m3 (36) 35.0
 
Oct. 8, 2020, 11 a.m. 6.6 ppb (7) 1.3 ppb (2) N/A 5.0 ppb (5) N/A N/A 7.0 ppb (7) N/A N/A 9.6 μg/m3 (40) 40.0
 
Oct. 8, 2020, 10 a.m. 5.9 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 7.0 ppb (7) N/A N/A 9.8 μg/m3 (41) 41.0
 
Oct. 8, 2020, 9 a.m. 11.1 ppb (11) 2.9 ppb (3) N/A 8.0 ppb (8) N/A N/A 5.0 ppb (5) N/A N/A 12.9 μg/m3 (53) 52.0
 
Oct. 8, 2020, 8 a.m. 12.2 ppb (12) 2.0 ppb (2) N/A 10.0 ppb (10) N/A N/A 3.0 ppb (3) N/A N/A 16.8 μg/m3 (61) 60.0
 
Oct. 8, 2020, 7 a.m. 25.8 ppb (25) 10.9 ppb (11) N/A 15.0 ppb (15) N/A N/A 3.0 ppb (3) N/A N/A 20.4 μg/m3 (69) 68.0
 
Oct. 8, 2020, 6 a.m. 21.1 ppb (20) 6.7 ppb (7) N/A 14.0 ppb (14) N/A N/A 2.0 ppb (2) N/A N/A 23.1 μg/m3 (75) 74.0
 
Oct. 8, 2020, 5 a.m. 27.0 ppb (26) 9.3 ppb (9) N/A 18.0 ppb (17) N/A N/A 2.0 ppb (2) N/A N/A 21.8 μg/m3 (72) 71.0
 
Oct. 8, 2020, 4 a.m. 27.2 ppb (26) 8.4 ppb (8) N/A 19.0 ppb (18) N/A N/A 2.0 ppb (2) N/A N/A 21.5 μg/m3 (71) 70.0
 
Oct. 8, 2020, 3 a.m. 25.1 ppb (24) 4.2 ppb (4) N/A 21.0 ppb (20) N/A N/A 3.0 ppb (3) N/A N/A 21.3 μg/m3 (71) 70.0
 
Oct. 8, 2020, 2 a.m. 31.8 ppb (30) 6.2 ppb (6) N/A 26.0 ppb (25) N/A N/A 3.0 ppb (3) N/A N/A 22.2 μg/m3 (73) 72.0
 
Oct. 8, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) N/A N/A 22.5 μg/m3 (73) 72.0
 
Oct. 8, 2020, midnight N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A N/A 19.3 μg/m3 (67) 66.0
 
Oct. 7, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 18.4 μg/m3 (65) 64.0
 
Oct. 7, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 18.0 μg/m3 (64) 63.0
 
Oct. 7, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 16.0 μg/m3 (60) 59.0
 
Oct. 7, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A 18.0 μg/m3 (64) 63.0
 
Oct. 7, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A N/A 19.8 μg/m3 (68) 67.0
 
Oct. 7, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) N/A N/A 15.4 μg/m3 (58) 57.0
 
Oct. 7, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) N/A N/A 14.3 μg/m3 (56) 55.0
 
Oct. 7, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 14.8 μg/m3 (57) 56.0
 
Oct. 7, 2020, 3 p.m. 61.8 ppb (60) 55.2 ppb (53) N/A 8.0 ppb (8) N/A N/A 2.0 ppb (2) N/A N/A 11.7 μg/m3 (49) 58.0
 
Oct. 7, 2020, 2 p.m. 72.5 ppb (71) 65.5 ppb (64) N/A 8.0 ppb (8) N/A N/A 2.0 ppb (2) N/A N/A 10.3 μg/m3 (43) 70.0
 
Oct. 7, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 9.0 μg/m3 (38) 38.0
 
Oct. 7, 2020, noon 56.4 ppb (54) 48.6 ppb (46) N/A 9.0 ppb (9) N/A N/A 2.0 ppb (2) N/A N/A 9.8 μg/m3 (41) 53.0
 
Oct. 7, 2020, 11 a.m. 61.1 ppb (59) 52.3 ppb (50) N/A 10.0 ppb (10) N/A N/A 2.0 ppb (2) N/A N/A 10.3 μg/m3 (43) 58.0
 
Oct. 7, 2020, 10 a.m. 19.0 ppb (18) 13.6 ppb (13) N/A 6.0 ppb (6) N/A N/A 1.0 ppb (1) N/A N/A 8.7 μg/m3 (37) 36.0
 
Oct. 7, 2020, 9 a.m. 20.3 ppb (20) 12.9 ppb (13) N/A 8.0 ppb (8) N/A N/A 2.0 ppb (2) N/A N/A 9.0 μg/m3 (38) 38.0