ID: 1236

AQSQID: 410510080

Site Name: Portland - Se Lafayette

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

Updated: Sept. 28, 2020, 10:38 a.m.

Location: Portland (Foster-Powell), OR

Reporting: True, Located: True

Current AQI: 20.0

Portland (Foster-Powell) OR, US: 45.496641, -122.602877

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 28, 2020, 9 a.m. 8.1 ppb (8) 0.5 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 13.0 ppb (10) N/A N/A 4.9 μg/m3 (20) 20.0
 
Sept. 28, 2020, 8 a.m. 7.9 ppb (7) 0.3 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A 4.6 μg/m3 (19) 19.0
 
Sept. 28, 2020, 7 a.m. 8.0 ppb (7) 0.6 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A 5.9 μg/m3 (25) 25.0
 
Sept. 28, 2020, 6 a.m. 8.1 ppb (8) 0.4 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A 6.7 μg/m3 (28) 28.0
 
Sept. 28, 2020, 5 a.m. 7.3 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 18.0 ppb (14) N/A N/A 8.3 μg/m3 (35) 35.0
 
Sept. 28, 2020, 4 a.m. 8.1 ppb (8) 0.8 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 17.0 ppb (13) N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 28, 2020, 3 a.m. 7.6 ppb (7) 0.9 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 18.0 ppb (14) N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 28, 2020, 2 a.m. 6.0 ppb (6) 0.6 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 3.8 μg/m3 (16) 17.0
 
Sept. 28, 2020, 1 a.m. 4.7 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 3.6 μg/m3 (15) 18.0
 
Sept. 28, 2020, midnight 3.5 ppb (3) 0.9 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 3.1 μg/m3 (13) 22.0
 
Sept. 27, 2020, 10 p.m. 2.9 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 3.2 μg/m3 (13) 25.0
 
Sept. 27, 2020, 9 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 3.2 μg/m3 (13) 25.0
 
Sept. 27, 2020, 8 p.m. 3.6 ppb (3) 1.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 3.6 μg/m3 (15) 22.0
 
Sept. 27, 2020, 6 p.m. 6.1 ppb (6) 2.7 ppb (3) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 4.5 μg/m3 (19) 19.0
 
Sept. 27, 2020, 5 p.m. 14.8 ppb (14) 8.8 ppb (8) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 12.0 ppb (9) N/A N/A 8.1 μg/m3 (34) 34.0
 
Sept. 27, 2020, 4 p.m. 18.4 ppb (17) 11.7 ppb (11) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 7.0 ppb (5) N/A N/A 10.3 μg/m3 (43) 43.0
 
Sept. 27, 2020, 3 p.m. 22.2 ppb (21) 14.2 ppb (13) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 4.0 ppb (3) N/A N/A 9.4 μg/m3 (39) 39.0
 
Sept. 27, 2020, 2 p.m. 24.4 ppb (23) 14.7 ppb (14) N/A 10.0 ppb (9) N/A 0.0 ppb (0) N/A N/A N/A 5.8 μg/m3 (24) 24.0
 
Sept. 27, 2020, 1 p.m. 23.1 ppb (21) 16.2 ppb (15) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A N/A N/A 6.8 μg/m3 (28) 28.0
 
Sept. 27, 2020, noon 15.8 ppb (15) 9.2 ppb (9) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A 7.7 μg/m3 (32) 32.0
 
Sept. 27, 2020, 11 a.m. 18.0 ppb (17) 10.5 ppb (10) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A 7.6 μg/m3 (32) 32.0
 
Sept. 27, 2020, 10 a.m. 24.3 ppb (23) 17.7 ppb (16) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A 11.4 μg/m3 (48) 48.0
 
Sept. 27, 2020, 9 a.m. 27.3 ppb (25) 20.5 ppb (19) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 1.0 ppb (1) N/A N/A 12.0 μg/m3 (50) 50.0
 
Sept. 27, 2020, 8 a.m. 25.1 ppb (23) 14.9 ppb (14) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A 11.5 μg/m3 (48) 48.0
 
Sept. 27, 2020, 7 a.m. 27.4 ppb (25) 15.1 ppb (14) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A 11.8 μg/m3 (49) 49.0
 
Sept. 27, 2020, 6 a.m. 22.7 ppb (21) 9.5 ppb (9) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A 14.6 μg/m3 (56) 56.0
 
Sept. 27, 2020, 5 a.m. 22.0 ppb (20) 7.2 ppb (7) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 2.0 ppb (2) N/A N/A 12.9 μg/m3 (52) 52.0
 
Sept. 27, 2020, 4 a.m. 14.7 ppb (14) 2.1 ppb (2) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 7.0 ppb (5) N/A N/A 6.4 μg/m3 (27) 27.0
 
Sept. 27, 2020, 3 a.m. 7.3 ppb (7) 0.3 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A 3.9 μg/m3 (16) 16.0
 
Sept. 27, 2020, 2 a.m. 5.3 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 3.3 μg/m3 (14) 18.0
 
Sept. 27, 2020, 1 a.m. 3.3 ppb (3) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 2.6 μg/m3 (11) 22.0
 
Sept. 27, 2020, midnight 2.8 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 2.5 μg/m3 (10) 23.0
 
Sept. 26, 2020, 11 p.m. 2.1 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 2.4 μg/m3 (10) 24.0
 
Sept. 26, 2020, 10 p.m. 2.2 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 2.4 μg/m3 (10) 23.0
 
Sept. 26, 2020, 9 p.m. 5.0 ppb (5) 1.4 ppb (1) N/A 4.0 ppb (4) N/A N/A 24.0 ppb (18) N/A N/A 2.9 μg/m3 (12) 18.0
 
Sept. 26, 2020, 8 p.m. 3.4 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 26.0 ppb (20) N/A N/A 2.6 μg/m3 (11) 20.0
 
Sept. 26, 2020, 7 p.m. 2.4 ppb (2) 0.9 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 2.5 μg/m3 (10) 10.0
 
Sept. 26, 2020, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 2.7 μg/m3 (11) 11.0
 
Sept. 26, 2020, 5 p.m. 4.1 ppb (4) 1.3 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 17.0 ppb (13) N/A N/A 2.8 μg/m3 (12) 13.0
 
Sept. 26, 2020, 4 p.m. 4.5 ppb (4) 1.8 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 14.0 ppb (11) N/A N/A 2.9 μg/m3 (12) 12.0
 
Sept. 26, 2020, 3 p.m. 7.2 ppb (7) 2.7 ppb (3) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 9.0 ppb (7) N/A N/A 3.4 μg/m3 (14) 14.0
 
Sept. 26, 2020, 2 p.m. 7.5 ppb (7) 1.9 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 5.0 ppb (4) N/A N/A 3.4 μg/m3 (14) 14.0
 
Sept. 26, 2020, 1 p.m. 4.5 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 8.0 ppb (6) N/A N/A 2.5 μg/m3 (10) 10.0
 
Sept. 26, 2020, noon 4.5 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 6.0 ppb (5) N/A N/A 2.6 μg/m3 (11) 11.0
 
Sept. 26, 2020, 11 a.m. 6.9 ppb (6) 1.4 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 5.0 ppb (4) N/A N/A 4.5 μg/m3 (19) 19.0
 
Sept. 26, 2020, 10 a.m. 11.2 ppb (10) 3.1 ppb (3) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A 10.2 μg/m3 (42) 42.0
 
Sept. 26, 2020, 9 a.m. 9.2 ppb (9) 1.1 ppb (1) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 3.0 ppb (2) N/A N/A 6.7 μg/m3 (28) 28.0
 
Sept. 26, 2020, 8 a.m. 8.7 ppb (8) 0.9 ppb (1) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 4.0 ppb (3) N/A N/A 5.5 μg/m3 (23) 23.0
 
Sept. 26, 2020, 7 a.m. 6.1 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 9.0 ppb (7) N/A N/A 5.3 μg/m3 (22) 22.0
 
Sept. 26, 2020, 5 a.m. 3.9 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 3.2 μg/m3 (13) 17.0
 
Sept. 26, 2020, 4 a.m. 5.6 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 15.0 ppb (12) N/A N/A 3.8 μg/m3 (16) 16.0
 
Sept. 26, 2020, 3 a.m. 6.1 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A 4.6 μg/m3 (19) 19.0
 
Sept. 26, 2020, 2 a.m. 4.6 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 13.0 ppb (10) N/A N/A 3.5 μg/m3 (15) 15.0
 
Sept. 26, 2020, 1 a.m. 5.5 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 14.0 ppb (11) N/A N/A 3.4 μg/m3 (14) 14.0
 
Sept. 26, 2020, midnight 7.4 ppb (7) 2.2 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 15.0 ppb (12) N/A N/A 2.8 μg/m3 (12) 12.0
 
Sept. 25, 2020, 11 p.m. 4.6 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 2.3 μg/m3 (10) 15.0
 
Sept. 25, 2020, 10 p.m. 3.2 ppb (3) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 2.5 μg/m3 (10) 17.0
 
Sept. 25, 2020, 9 p.m. 2.1 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 3.1 μg/m3 (13) 18.0
 
Sept. 25, 2020, 8 p.m. 2.0 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 3.6 μg/m3 (15) 19.0
 
Sept. 25, 2020, 7 p.m. 1.8 ppb (2) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 3.2 μg/m3 (13) 19.0
 
Sept. 25, 2020, 6 p.m. 1.6 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 3.4 μg/m3 (14) 19.0
 
Sept. 25, 2020, 5 p.m. 1.6 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 3.5 μg/m3 (15) 19.0
 
Sept. 25, 2020, 4 p.m. 1.9 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 3.7 μg/m3 (15) 19.0
 
Sept. 25, 2020, 3 p.m. 2.2 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 3.9 μg/m3 (16) 18.0
 
Sept. 25, 2020, 2 p.m. 3.2 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 4.1 μg/m3 (17) 18.0
 
Sept. 25, 2020, 1 p.m. 1.2 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 4.2 μg/m3 (18) 19.0
 
Sept. 25, 2020, noon 1.3 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 4.5 μg/m3 (19) 19.0
 
Sept. 25, 2020, 11 a.m. 1.5 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 4.9 μg/m3 (20) 20.0
 
Sept. 25, 2020, 10 a.m. 2.2 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 25, 2020, 9 a.m. 4.3 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 13.0 ppb (10) N/A N/A 7.4 μg/m3 (31) 31.0
 
Sept. 25, 2020, 8 a.m. 4.0 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 15.0 ppb (12) N/A N/A 6.8 μg/m3 (28) 28.0
 
Sept. 25, 2020, 7 a.m. 2.9 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 18.0 ppb (14) N/A N/A 5.6 μg/m3 (23) 23.0
 
Sept. 25, 2020, 6 a.m. 5.1 ppb (5) 0.2 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A 4.9 μg/m3 (20) 20.0
 
Sept. 25, 2020, 5 a.m. 5.1 ppb (5) 0.2 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 18.0 ppb (14) N/A N/A 4.7 μg/m3 (20) 20.0
 
Sept. 25, 2020, 4 a.m. 6.1 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 17.0 ppb (13) N/A N/A 4.6 μg/m3 (19) 19.0
 
Sept. 25, 2020, 3 a.m. 4.5 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A 4.6 μg/m3 (19) 19.0
 
Sept. 25, 2020, 2 a.m. 3.5 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 4.7 μg/m3 (20) 20.0
 
Sept. 25, 2020, 1 a.m. 3.2 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 4.1 μg/m3 (17) 19.0
 
Sept. 25, 2020, midnight 3.2 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 4.3 μg/m3 (18) 22.0
 
Sept. 24, 2020, 11 p.m. 2.9 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 4.2 μg/m3 (18) 22.0
 
Sept. 24, 2020, 10 p.m. 2.0 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 3.9 μg/m3 (16) 25.0
 
Sept. 24, 2020, 9 p.m. 1.9 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 3.7 μg/m3 (15) 25.0
 
Sept. 24, 2020, 8 p.m. 2.1 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 3.9 μg/m3 (16) 25.0
 
Sept. 24, 2020, 7 p.m. 2.6 ppb (2) 0.9 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A N/A N/A 4.8 μg/m3 (20) 20.0
 
Sept. 24, 2020, 6 p.m. 2.2 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A N/A N/A 4.8 μg/m3 (20) 20.0
 
Sept. 24, 2020, 4 p.m. 3.1 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 3.9 μg/m3 (16) 20.0
 
Sept. 24, 2020, 3 p.m. 4.4 ppb (4) 1.1 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 3.6 μg/m3 (15) 17.0
 
Sept. 24, 2020, 2 p.m. 4.0 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A 3.2 μg/m3 (13) 15.0
 
Sept. 24, 2020, 1 p.m. 3.8 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A 3.2 μg/m3 (13) 15.0
 
Sept. 24, 2020, noon 2.7 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A 3.2 μg/m3 (13) 16.0
 
Sept. 24, 2020, 11 a.m. 2.4 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A 3.2 μg/m3 (13) 16.0
 
Sept. 24, 2020, 10 a.m. 2.7 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A 3.0 μg/m3 (12) 15.0
 
Sept. 24, 2020, 9 a.m. 1.9 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A 2.6 μg/m3 (11) 16.0
 
Sept. 24, 2020, 7 a.m. 2.1 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 2.8 μg/m3 (12) 18.0
 
Sept. 24, 2020, 6 a.m. 1.4 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 2.8 μg/m3 (12) 22.0
 
Sept. 24, 2020, 4 a.m. 1.5 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 1.9 μg/m3 (8) 25.0
 
Sept. 24, 2020, 3 a.m. 2.2 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 1.9 μg/m3 (8) 23.0
 
Sept. 24, 2020, 2 a.m. 2.9 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 2.0 μg/m3 (8) 20.0
 
Sept. 24, 2020, 1 a.m. 2.9 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 1.8 μg/m3 (8) 19.0
 
Sept. 24, 2020, midnight 5.1 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A 3.9 μg/m3 (16) 16.0
 
Sept. 23, 2020, 11 p.m. 7.0 ppb (6) 0.9 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 15.0 ppb (12) N/A N/A 7.7 μg/m3 (32) 32.0
 
Sept. 23, 2020, 10 p.m. 5.8 ppb (5) 0.9 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 18.0 ppb (14) N/A N/A 12.1 μg/m3 (50) 50.0
 
Sept. 23, 2020, 9 p.m. 6.3 ppb (6) 1.2 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A 16.5 μg/m3 (60) 60.0
 
Sept. 23, 2020, 8 p.m. 7.7 ppb (7) 1.2 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 17.0 ppb (13) N/A N/A 16.3 μg/m3 (59) 59.0
 
Sept. 23, 2020, 7 p.m. 6.9 ppb (6) 1.4 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 18.0 ppb (14) N/A N/A 15.8 μg/m3 (58) 58.0
 
Sept. 23, 2020, 6 p.m. 7.1 ppb (7) 1.7 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 17.0 ppb (13) N/A N/A 13.6 μg/m3 (53) 53.0
 
Sept. 23, 2020, 5 p.m. 7.5 ppb (7) 1.8 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 15.0 ppb (12) N/A N/A 11.2 μg/m3 (47) 47.0
 
Sept. 23, 2020, 4 p.m. 9.8 ppb (9) 2.2 ppb (2) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 12.0 ppb (9) N/A N/A 7.3 μg/m3 (30) 30.0
 
Sept. 23, 2020, 3 p.m. 21.9 ppb (20) 8.8 ppb (8) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 3.0 ppb (2) N/A N/A 7.6 μg/m3 (32) 32.0
 
Sept. 23, 2020, 2 p.m. 16.2 ppb (15) 5.0 ppb (5) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 2.0 ppb (2) N/A N/A 7.3 μg/m3 (30) 30.0
 
Sept. 23, 2020, 1 p.m. 8.3 ppb (8) 1.2 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 7.0 ppb (5) N/A N/A 5.6 μg/m3 (23) 23.0
 
Sept. 23, 2020, noon 3.6 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 14.0 ppb (11) N/A N/A 4.5 μg/m3 (19) 19.0
 
Sept. 23, 2020, 11 a.m. 2.2 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A 4.1 μg/m3 (17) 17.0
 
Sept. 23, 2020, 10 a.m. 1.7 ppb (2) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 3.8 μg/m3 (16) 18.0
 
Sept. 23, 2020, 9 a.m. 1.9 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 3.4 μg/m3 (14) 17.0
 
Sept. 23, 2020, 8 a.m. 2.6 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A 3.8 μg/m3 (16) 16.0
 
Sept. 23, 2020, 6 a.m. 8.0 ppb (7) 0.4 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 17.0 ppb (13) N/A N/A 4.6 μg/m3 (19) 19.0
 
Sept. 23, 2020, 5 a.m. 12.0 ppb (11) 0.5 ppb (0) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A 4.3 μg/m3 (18) 18.0
 
Sept. 23, 2020, 4 a.m. 13.9 ppb (13) 0.6 ppb (1) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 14.0 ppb (11) N/A N/A 4.7 μg/m3 (20) 20.0
 
Sept. 23, 2020, 3 a.m. 11.4 ppb (11) 0.5 ppb (0) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 17.0 ppb (13) N/A N/A 4.7 μg/m3 (20) 20.0
 
Sept. 23, 2020, 2 a.m. 8.4 ppb (8) 0.3 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 3.6 μg/m3 (15) 18.0
 
Sept. 23, 2020, midnight 3.6 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 2.5 μg/m3 (10) 26.0
 
Sept. 22, 2020, 11 p.m. 3.0 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 2.4 μg/m3 (10) 27.0
 
Sept. 22, 2020, 10 p.m. 2.1 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 2.4 μg/m3 (10) 28.0
 
Sept. 22, 2020, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 2.4 μg/m3 (10) 17.0
 
Sept. 22, 2020, 5 p.m. 4.9 ppb (5) 2.1 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 2.3 μg/m3 (10) 15.0
 
Sept. 22, 2020, 4 p.m. 5.1 ppb (5) 1.8 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 18.0 ppb (14) N/A N/A 2.3 μg/m3 (10) 14.0
 
Sept. 22, 2020, 3 p.m. 7.1 ppb (7) 1.9 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 13.0 ppb (10) N/A N/A 2.7 μg/m3 (11) 11.0
 
Sept. 22, 2020, 2 p.m. 4.9 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 13.0 ppb (10) N/A N/A 2.6 μg/m3 (11) 11.0
 
Sept. 22, 2020, 1 p.m. 6.0 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A 2.8 μg/m3 (12) 12.0
 
Sept. 22, 2020, noon 5.3 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 11.0 ppb (8) N/A N/A 2.7 μg/m3 (11) 11.0
 
Sept. 22, 2020, 11 a.m. 4.9 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 12.0 ppb (9) N/A N/A 3.1 μg/m3 (13) 13.0
 
Sept. 22, 2020, 10 a.m. 3.9 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 14.0 ppb (11) N/A N/A 3.3 μg/m3 (14) 14.0
 
Sept. 22, 2020, 9 a.m. 3.3 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A 3.6 μg/m3 (15) 15.0
 
Sept. 22, 2020, 8 a.m. 5.6 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 13.0 ppb (10) N/A N/A 4.7 μg/m3 (20) 20.0
 
Sept. 22, 2020, 7 a.m. 4.4 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 15.0 ppb (12) N/A N/A 5.9 μg/m3 (25) 25.0
 
Sept. 22, 2020, 6 a.m. 7.4 ppb (7) 0.6 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A 6.1 μg/m3 (25) 25.0
 
Sept. 22, 2020, 5 a.m. 8.7 ppb (8) 0.7 ppb (1) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A 6.5 μg/m3 (27) 27.0
 
Sept. 22, 2020, 4 a.m. 6.7 ppb (6) 0.7 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 14.0 ppb (11) N/A N/A 6.3 μg/m3 (26) 26.0
 
Sept. 22, 2020, 3 a.m. 7.4 ppb (7) 0.9 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 7.8 μg/m3 (32) 32.0
 
Sept. 22, 2020, 2 a.m. 7.0 ppb (6) 0.3 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 6.4 μg/m3 (27) 27.0
 
Sept. 22, 2020, 1 a.m. 3.5 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 7.0 μg/m3 (29) 29.0
 
Sept. 21, 2020, 11 p.m. 3.0 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 42.0 ppb (32) N/A N/A 10.3 μg/m3 (43) 43.0
 
Sept. 21, 2020, 10 p.m. 4.6 ppb (4) 1.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 16.8 μg/m3 (60) 60.0
 
Sept. 21, 2020, 9 p.m. 7.4 ppb (7) 1.8 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 23.6 μg/m3 (75) 75.0
 
Sept. 21, 2020, 7 p.m. 7.1 ppb (7) 1.9 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 40.5 μg/m3 (112) 112.0
 
Sept. 21, 2020, 6 p.m. 9.7 ppb (9) 3.8 ppb (4) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 58.0 μg/m3 (151) 151.0
 
Sept. 21, 2020, 5 p.m. 18.2 ppb (17) 9.5 ppb (9) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A 39.8 μg/m3 (111) 111.0
 
Sept. 21, 2020, 4 p.m. 20.2 ppb (19) 11.3 ppb (10) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 5.0 ppb (4) N/A N/A 34.6 μg/m3 (98) 98.0
 
Sept. 21, 2020, 3 p.m. 24.2 ppb (22) 14.8 ppb (14) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 2.0 ppb (2) N/A N/A 18.1 μg/m3 (63) 63.0
 
Sept. 21, 2020, noon 40.1 ppb (37) 35.5 ppb (33) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A N/A 9.5 μg/m3 (40) 40.0
 
Sept. 21, 2020, 11 a.m. 31.7 ppb (29) 26.5 ppb (25) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 1.0 ppb (1) N/A N/A 8.6 μg/m3 (36) 36.0
 
Sept. 21, 2020, 10 a.m. 37.2 ppb (34) 31.9 ppb (30) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 1.0 ppb (1) N/A N/A 9.6 μg/m3 (40) 40.0
 
Sept. 21, 2020, 9 a.m. 42.5 ppb (39) 36.5 ppb (34) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 1.0 ppb (1) N/A N/A 10.7 μg/m3 (45) 45.0
 
Sept. 21, 2020, 8 a.m. 42.2 ppb (39) 33.9 ppb (31) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 1.0 ppb (1) N/A N/A 12.4 μg/m3 (51) 51.0
 
Sept. 21, 2020, 7 a.m. 44.8 ppb (41) 34.1 ppb (32) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 1.0 ppb (1) N/A N/A 12.4 μg/m3 (51) 51.0
 
Sept. 21, 2020, 6 a.m. 41.6 ppb (39) 28.7 ppb (27) N/A 13.0 ppb (12) N/A 1.0 ppb (1) 1.0 ppb (1) N/A N/A 15.8 μg/m3 (58) 58.0
 
Sept. 21, 2020, 5 a.m. 32.1 ppb (30) 17.7 ppb (16) N/A 14.0 ppb (13) N/A 1.0 ppb (1) 1.0 ppb (1) N/A N/A 12.4 μg/m3 (51) 51.0
 
Sept. 21, 2020, 4 a.m. 24.0 ppb (22) 6.8 ppb (6) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 2.0 ppb (2) N/A N/A 12.2 μg/m3 (50) 50.0
 
Sept. 21, 2020, 2 a.m. 12.5 ppb (12) 0.7 ppb (1) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 17.0 ppb (13) N/A N/A 5.9 μg/m3 (25) 25.0
 
Sept. 21, 2020, 1 a.m. 5.0 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 5.1 μg/m3 (21) 24.0
 
Sept. 21, 2020, midnight 3.3 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 5.4 μg/m3 (23) 28.0
 
Sept. 20, 2020, 11 p.m. 2.5 ppb (2) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 5.6 μg/m3 (23) 31.0
 
Sept. 20, 2020, 10 p.m. 2.5 ppb (2) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 6.0 μg/m3 (25) 31.0
 
Sept. 20, 2020, 9 p.m. 2.7 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 6.0 μg/m3 (25) 29.0
 
Sept. 20, 2020, 8 p.m. 2.9 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 6.1 μg/m3 (25) 28.0
 
Sept. 20, 2020, 7 p.m. 4.1 ppb (4) 1.5 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 6.1 μg/m3 (25) 25.0
 
Sept. 20, 2020, 6 p.m. 5.6 ppb (5) 2.3 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 6.2 μg/m3 (26) 26.0