ID: 1236

AQSQID: 410510080

Site Name: Portland - Se Lafayette

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

Updated: June 18, 2021, 4:54 a.m.

Location: Portland (Foster-Powell), OR

Reporting: True, Located: True

Current AQI: 31.0

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
June 18, 2021, 3 a.m. 3.7 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (31) 0.02 ppb (0) N/A 4.2 μg/m3 (18) 31.0
 
June 18, 2021, 2 a.m. 3.5 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 40.0 ppb (38) 0.03 ppb (0) N/A 4.3 μg/m3 (18) 38.0
 
June 18, 2021, 1 a.m. 3.2 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 48.0 ppb (45) 0.03 ppb (0) N/A 3.5 μg/m3 (15) 45.0
 
June 18, 2021, midnight 2.9 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 50.0 ppb (47) 0.04 ppb (0) N/A 3.2 μg/m3 (14) 47.0
 
June 17, 2021, 11 p.m. 2.8 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 51.0 ppb (48) 0.04 ppb (0) N/A 2.8 μg/m3 (12) 48.0
 
June 17, 2021, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 47.0 ppb (44) 0.03 ppb (0) N/A 3.0 μg/m3 (13) 44.0
 
June 17, 2021, 9 p.m. 4.7 ppb (5) 1.8 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 42.0 ppb (39) 0.04 ppb (0) N/A 3.2 μg/m3 (14) 39.0
 
June 17, 2021, 8 p.m. 3.4 ppb (4) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 44.0 ppb (41) 0.03 ppb (0) N/A 3.3 μg/m3 (14) 41.0
 
June 17, 2021, 7 p.m. 4.0 ppb (4) 1.3 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 40.0 ppb (38) 0.03 ppb (0) N/A 4.0 μg/m3 (17) 38.0
 
June 17, 2021, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 37.0 ppb (35) 0.05 ppb (2) N/A 4.8 μg/m3 (20) 35.0
 
June 17, 2021, 5 p.m. 9.0 ppb (9) 3.4 ppb (4) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 28.0 ppb (26) 0.05 ppb (2) N/A 5.6 μg/m3 (24) 26.0
 
June 17, 2021, 4 p.m. 10.2 ppb (10) 4.2 ppb (4) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 22.0 ppb (21) 0.05 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
June 17, 2021, 3 p.m. 10.9 ppb (11) 4.5 ppb (5) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 19.0 ppb (18) 0.05 ppb (2) N/A 4.6 μg/m3 (20) 20.0
 
June 17, 2021, 2 p.m. 11.2 ppb (11) 4.0 ppb (4) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 16.0 ppb (15) 0.04 ppb (0) N/A 4.4 μg/m3 (19) 19.0
 
June 17, 2021, 1 p.m. 12.3 ppb (12) 3.6 ppb (4) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 13.0 ppb (13) 0.09 ppb (2) N/A 4.1 μg/m3 (18) 18.0
 
June 17, 2021, noon 10.9 ppb (11) 1.3 ppb (2) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 9.0 ppb (9) 0.08 ppb (2) N/A 3.9 μg/m3 (17) 17.0
 
June 17, 2021, 11 a.m. 7.4 ppb (7) 0.4 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 12.0 ppb (12) 0.05 ppb (2) N/A 4.5 μg/m3 (19) 19.0
 
June 17, 2021, 10 a.m. 8.0 ppb (8) 0.4 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 16.0 ppb (15) 0.05 ppb (2) N/A 5.7 μg/m3 (24) 24.0
 
June 17, 2021, 9 a.m. 7.0 ppb (7) 0.3 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 22.0 ppb (21) 0.04 ppb (0) N/A 4.8 μg/m3 (20) 21.0
 
June 17, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.05 ppb (2) N/A 4.8 μg/m3 (20) 25.0
 
June 17, 2021, 7 a.m. 5.7 ppb (6) 0.4 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 30.0 ppb (28) 0.09 ppb (2) N/A 6.1 μg/m3 (26) 28.0
 
June 17, 2021, 6 a.m. 6.4 ppb (7) 0.5 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 33.0 ppb (31) 0.1 ppb (2) N/A 5.2 μg/m3 (22) 31.0
 
June 17, 2021, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 36.0 ppb (34) 0.07 ppb (2) N/A 4.2 μg/m3 (18) 34.0
 
June 17, 2021, 4 a.m. 6.3 ppb (6) 0.4 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 37.0 ppb (35) 0.06 ppb (2) N/A 4.2 μg/m3 (18) 35.0
 
June 17, 2021, 3 a.m. 5.1 ppb (5) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 38.0 ppb (36) 0.04 ppb (0) N/A 3.1 μg/m3 (13) 36.0
 
June 17, 2021, 2 a.m. 3.3 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 39.0 ppb (37) 0.03 ppb (0) N/A 3.4 μg/m3 (15) 37.0
 
June 17, 2021, 1 a.m. 3.4 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 40.0 ppb (38) 0.03 ppb (0) N/A 3.1 μg/m3 (13) 38.0
 
June 17, 2021, midnight 3.6 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 40.0 ppb (38) 0.03 ppb (0) N/A 2.2 μg/m3 (10) 38.0
 
June 16, 2021, 11 p.m. 2.9 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (37) 0.02 ppb (0) N/A 2.3 μg/m3 (10) 37.0
 
June 16, 2021, 10 p.m. 3.2 ppb (4) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (37) 0.03 ppb (0) N/A 2.3 μg/m3 (10) 37.0
 
June 16, 2021, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 36.0 ppb (34) 0.02 ppb (0) N/A 2.5 μg/m3 (11) 34.0
 
June 16, 2021, 8 p.m. 3.7 ppb (4) 1.4 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (32) 0.02 ppb (0) N/A 3.0 μg/m3 (13) 32.0
 
June 16, 2021, 7 p.m. 5.1 ppb (5) 2.1 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (27) 0.03 ppb (0) N/A 3.5 μg/m3 (15) 27.0
 
June 16, 2021, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 24.0 ppb (23) 0.03 ppb (0) N/A 4.0 μg/m3 (17) 23.0
 
June 16, 2021, 5 p.m. 10.9 ppb (11) 5.9 ppb (6) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 16.0 ppb (15) 0.05 ppb (2) N/A 4.4 μg/m3 (19) 19.0
 
June 16, 2021, 4 p.m. 11.0 ppb (11) 6.5 ppb (7) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 12.0 ppb (12) 0.07 ppb (2) N/A 4.2 μg/m3 (18) 18.0
 
June 16, 2021, 3 p.m. 13.4 ppb (13) 6.5 ppb (7) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 7.0 ppb (7) 0.05 ppb (2) N/A 5.8 μg/m3 (25) 25.0
 
June 16, 2021, 2 p.m. 10.4 ppb (10) 4.2 ppb (4) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 6.0 ppb (6) 0.04 ppb (0) N/A 5.3 μg/m3 (23) 23.0
 
June 16, 2021, 1 p.m. 14.9 ppb (15) 4.9 ppb (5) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 5.0 ppb (5) 0.07 ppb (2) N/A 6.3 μg/m3 (27) 27.0
 
June 16, 2021, noon 21.7 ppb (21) 10.3 ppb (10) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 1.0 ppb (1) 0.15 ppb (2) N/A 5.9 μg/m3 (25) 25.0
 
June 16, 2021, 11 a.m. 12.2 ppb (12) 2.5 ppb (3) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 3.0 ppb (3) 0.07 ppb (2) N/A 4.4 μg/m3 (19) 19.0
 
June 16, 2021, 10 a.m. 11.3 ppb (11) 1.9 ppb (2) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 5.0 ppb (5) 0.07 ppb (2) N/A 4.3 μg/m3 (18) 18.0
 
June 16, 2021, 9 a.m. 18.8 ppb (18) 6.4 ppb (7) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 2.0 ppb (2) 0.12 ppb (2) N/A 5.4 μg/m3 (23) 23.0
 
June 16, 2021, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.01 ppb (0) N/A 2.7 μg/m3 (12) 26.0
 
June 15, 2021, 11 p.m. 1.9 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (28) 0.0 ppb (0) N/A 2.5 μg/m3 (11) 28.0
 
June 15, 2021, 10 p.m. 2.5 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (28) 0.0 ppb (0) N/A 2.5 μg/m3 (11) 28.0
 
June 15, 2021, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.0 ppb (0) N/A 2.7 μg/m3 (12) 28.0
 
June 15, 2021, 8 p.m. 2.0 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (28) 0.01 ppb (0) N/A 2.8 μg/m3 (12) 28.0
 
June 15, 2021, 7 p.m. 2.4 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (27) 0.0 ppb (0) N/A 2.9 μg/m3 (13) 27.0
 
June 15, 2021, 6 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 (25) 0.01 ppb (0) N/A 3.1 μg/m3 (13) 25.0
 
June 15, 2021, 5 p.m. 3.4 ppb (4) 1.2 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 24.0 ppb (23) 0.0 ppb (0) N/A 3.2 μg/m3 (14) 23.0
 
June 15, 2021, 4 p.m. 3.5 ppb (4) 1.2 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 24.0 ppb (23) 0.0 ppb (0) N/A 2.9 μg/m3 (13) 23.0
 
June 15, 2021, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 21.0 ppb (20) 0.01 ppb (0) N/A 3.2 μg/m3 (14) 20.0
 
June 15, 2021, 2 p.m. 10.6 ppb (10) 4.0 ppb (4) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 14.0 ppb (13) 0.05 ppb (2) N/A 3.7 μg/m3 (16) 16.0
 
June 15, 2021, 1 p.m. 15.2 ppb (15) 6.4 ppb (7) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 3.0 ppb (3) 0.15 ppb (2) N/A 4.8 μg/m3 (20) 20.0
 
June 15, 2021, noon 9.7 ppb (10) 2.0 ppb (2) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 3.0 ppb (3) 0.09 ppb (2) N/A 4.1 μg/m3 (18) 18.0
 
June 15, 2021, 11 a.m. 10.9 ppb (11) 2.8 ppb (3) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 3.0 ppb (3) 0.08 ppb (2) N/A 4.3 μg/m3 (18) 18.0
 
June 15, 2021, 10 a.m. 8.8 ppb (9) 1.1 ppb (2) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 4.0 ppb (4) 0.08 ppb (2) N/A 4.6 μg/m3 (20) 20.0
 
June 15, 2021, 9 a.m. 7.8 ppb (8) 0.9 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 8.0 ppb (8) 0.06 ppb (2) N/A 4.1 μg/m3 (18) 18.0
 
June 15, 2021, 8 a.m. 14.0 ppb (14) 1.8 ppb (2) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 3.0 ppb (3) 0.11 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
June 15, 2021, 7 a.m. 8.9 ppb (9) 0.5 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 12.0 ppb (12) 0.06 ppb (2) N/A 4.7 μg/m3 (20) 20.0
 
June 15, 2021, 6 a.m. 13.0 ppb (13) 1.0 ppb (1) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 10.0 ppb (10) 0.1 ppb (2) N/A 5.1 μg/m3 (22) 22.0
 
June 15, 2021, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 10.0 ppb (10) 0.08 ppb (2) N/A 5.4 μg/m3 (23) 23.0
 
June 15, 2021, 4 a.m. 7.9 ppb (8) 0.7 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 20.0 ppb (19) 0.05 ppb (2) N/A 4.5 μg/m3 (19) 19.0
 
June 15, 2021, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.04 ppb (0) N/A 4.1 μg/m3 (18) 25.0
 
June 15, 2021, 2 a.m. 2.3 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (27) 0.03 ppb (0) N/A 3.6 μg/m3 (16) 27.0
 
June 15, 2021, 1 a.m. 1.5 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (31) 0.01 ppb (0) N/A 4.1 μg/m3 (18) 31.0
 
June 15, 2021, midnight 1.7 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (31) 0.01 ppb (0) N/A 3.8 μg/m3 (16) 31.0
 
June 14, 2021, 11 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 (31) 0.01 ppb (0) N/A 3.7 μg/m3 (16) 31.0
 
June 14, 2021, 10 p.m. 2.0 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A N/A 32.0 ppb (30) 0.01 ppb (0) N/A 3.3 μg/m3 (14) 30.0
 
June 14, 2021, 9 p.m. 2.1 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A N/A 28.0 ppb (26) N/A N/A 3.4 μg/m3 (15) 26.0
 
June 14, 2021, 8 p.m. 2.9 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (25) 0.02 ppb (0) N/A 3.1 μg/m3 (13) 25.0
 
June 14, 2021, 7 p.m. 3.7 ppb (4) 1.3 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A 3.2 μg/m3 (14) 21.0
 
June 14, 2021, 6 p.m. 4.4 ppb (5) 1.5 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 19.0 ppb (18) 0.01 ppb (0) N/A 3.5 μg/m3 (15) 18.0
 
June 14, 2021, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 19.0 ppb (18) 0.01 ppb (0) N/A 2.8 μg/m3 (12) 18.0
 
June 14, 2021, 4 p.m. 6.1 ppb (6) 1.6 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 15.0 ppb (14) 0.03 ppb (0) N/A 3.4 μg/m3 (15) 15.0
 
June 14, 2021, 3 p.m. 7.5 ppb (8) 2.5 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 10.0 ppb (10) 0.04 ppb (0) N/A 5.2 μg/m3 (22) 22.0
 
June 14, 2021, 2 p.m. 13.2 ppb (13) 6.2 ppb (6) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 3.0 ppb (3) 0.08 ppb (2) N/A 6.3 μg/m3 (27) 27.0
 
June 14, 2021, 1 p.m. 11.2 ppb (11) 4.0 ppb (4) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 1.0 ppb (1) 0.07 ppb (2) N/A 5.2 μg/m3 (22) 22.0
 
June 14, 2021, noon 9.7 ppb (10) 1.8 ppb (2) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 1.0 ppb (1) 0.09 ppb (2) N/A 5.5 μg/m3 (23) 23.0
 
June 14, 2021, 11 a.m. 10.7 ppb (11) 1.7 ppb (2) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 1.0 ppb (1) 0.11 ppb (2) N/A 6.3 μg/m3 (27) 27.0
 
June 14, 2021, 10 a.m. 13.3 ppb (13) 2.7 ppb (3) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 1.0 ppb (1) 0.11 ppb (2) N/A 6.6 μg/m3 (28) 28.0
 
June 14, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 1.0 ppb (1) 0.13 ppb (2) N/A 6.5 μg/m3 (28) 28.0
 
June 14, 2021, 8 a.m. 11.3 ppb (11) 2.3 ppb (3) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 1.0 ppb (1) 0.16 ppb (3) N/A 6.4 μg/m3 (27) 27.0
 
June 14, 2021, 7 a.m. 11.2 ppb (11) 1.8 ppb (2) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 2.0 ppb (2) 0.17 ppb (3) N/A 6.1 μg/m3 (26) 26.0
 
June 14, 2021, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 5.0 ppb (5) 0.14 ppb (2) N/A 5.7 μg/m3 (24) 24.0
 
June 14, 2021, 5 a.m. 10.3 ppb (10) 1.2 ppb (2) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 6.0 ppb (6) 0.14 ppb (2) N/A 5.8 μg/m3 (25) 25.0
 
June 14, 2021, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 8.0 ppb (8) 0.1 ppb (2) N/A 6.1 μg/m3 (26) 26.0
 
June 14, 2021, 3 a.m. 8.0 ppb (8) 0.9 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 11.0 ppb (11) 0.1 ppb (2) N/A 4.6 μg/m3 (20) 20.0
 
June 14, 2021, 2 a.m. 8.0 ppb (8) 1.1 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 13.0 ppb (13) 0.1 ppb (2) N/A 4.1 μg/m3 (18) 18.0
 
June 14, 2021, 1 a.m. 5.6 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 15.0 ppb (14) 0.09 ppb (2) N/A 3.1 μg/m3 (13) 14.0
 
June 14, 2021, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (21) 0.04 ppb (0) N/A 2.8 μg/m3 (12) 21.0
 
June 13, 2021, 11 p.m. 3.8 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (25) 0.04 ppb (0) N/A 3.9 μg/m3 (17) 25.0
 
June 13, 2021, 10 p.m. 3.2 ppb (4) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 27.0 ppb (25) 0.01 ppb (0) N/A 3.3 μg/m3 (14) 25.0
 
June 13, 2021, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.01 ppb (0) N/A 3.4 μg/m3 (15) 26.0
 
June 13, 2021, 8 p.m. 2.4 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (28) 0.01 ppb (0) N/A 2.9 μg/m3 (13) 28.0
 
June 13, 2021, 7 p.m. 3.1 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 28.0 ppb (26) 0.03 ppb (0) N/A 3.0 μg/m3 (13) 26.0
 
June 13, 2021, 6 p.m. 4.7 ppb (5) 1.1 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 22.0 ppb (21) 0.05 ppb (2) N/A 3.3 μg/m3 (14) 21.0
 
June 13, 2021, 5 p.m. 4.2 ppb (4) 1.5 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (21) 0.03 ppb (0) N/A 2.7 μg/m3 (12) 21.0
 
June 13, 2021, 4 p.m. 3.4 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (21) 0.02 ppb (0) N/A 2.6 μg/m3 (11) 21.0
 
June 13, 2021, 3 p.m. 1.6 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 2.2 μg/m3 (10) 20.0
 
June 13, 2021, 2 p.m. 2.5 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 14.0 ppb (13) 0.01 ppb (0) N/A 2.5 μg/m3 (11) 13.0
 
June 13, 2021, 1 p.m. 3.6 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 10.0 ppb (10) 0.04 ppb (0) N/A 2.9 μg/m3 (13) 13.0
 
June 13, 2021, noon 2.6 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 10.0 ppb (10) 0.02 ppb (0) N/A 2.7 μg/m3 (12) 12.0
 
June 13, 2021, 11 a.m. 2.9 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 17.0 ppb (16) N/A N/A 2.4 μg/m3 (10) 16.0
 
June 13, 2021, 10 a.m. 1.7 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 20.0 ppb (19) N/A N/A 2.4 μg/m3 (10) 19.0
 
June 13, 2021, 9 a.m. 2.1 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 18.0 ppb (17) 0.0 ppb (0) N/A 2.7 μg/m3 (12) 17.0
 
June 13, 2021, 8 a.m. 3.7 ppb (4) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 18.0 ppb (17) 0.05 ppb (2) N/A 4.2 μg/m3 (18) 18.0
 
June 13, 2021, 7 a.m. 4.7 ppb (5) 0.3 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 20.0 ppb (19) 0.06 ppb (2) N/A 4.4 μg/m3 (19) 19.0
 
June 13, 2021, 6 a.m. 6.1 ppb (6) 0.3 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 20.0 ppb (19) 0.08 ppb (2) N/A 5.2 μg/m3 (22) 22.0
 
June 13, 2021, 5 a.m. 10.8 ppb (11) 0.6 ppb (1) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 15.0 ppb (14) 0.13 ppb (2) N/A 6.2 μg/m3 (26) 26.0
 
June 13, 2021, 4 a.m. 10.9 ppb (11) 0.7 ppb (1) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 15.0 ppb (14) 0.13 ppb (2) N/A 5.4 μg/m3 (23) 23.0
 
June 13, 2021, 3 a.m. 7.7 ppb (8) 0.5 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 23.0 ppb (22) 0.09 ppb (2) N/A 4.1 μg/m3 (18) 22.0
 
June 13, 2021, 2 a.m. 9.3 ppb (9) 0.7 ppb (1) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 26.0 ppb (25) 0.12 ppb (2) N/A 4.5 μg/m3 (19) 25.0
 
June 13, 2021, 1 a.m. 7.4 ppb (7) 0.6 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 37.0 ppb (35) 0.07 ppb (2) N/A 2.9 μg/m3 (13) 35.0
 
June 13, 2021, midnight 4.0 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 44.0 ppb (41) 0.06 ppb (2) N/A 2.7 μg/m3 (12) 41.0
 
June 12, 2021, 11 p.m. 2.6 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 44.0 ppb (41) 0.05 ppb (2) N/A 2.4 μg/m3 (10) 41.0
 
June 12, 2021, 10 p.m. 2.4 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 44.0 ppb (41) 0.04 ppb (0) N/A 2.4 μg/m3 (10) 41.0
 
June 12, 2021, 9 p.m. 2.5 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (37) 0.03 ppb (0) N/A 2.3 μg/m3 (10) 37.0
 
June 12, 2021, 8 p.m. 1.8 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 36.0 ppb (34) 0.02 ppb (0) N/A 2.1 μg/m3 (9) 34.0
 
June 12, 2021, 7 p.m. 1.5 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (30) 0.01 ppb (0) N/A 2.0 μg/m3 (9) 30.0
 
June 12, 2021, 6 p.m. 1.7 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (27) 0.02 ppb (0) N/A 2.1 μg/m3 (9) 27.0
 
June 12, 2021, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.02 ppb (0) N/A 2.3 μg/m3 (10) 25.0
 
June 12, 2021, 4 p.m. 2.3 ppb (3) 0.9 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 22.0 ppb (21) 0.03 ppb (0) N/A 2.3 μg/m3 (10) 21.0
 
June 12, 2021, 3 p.m. 4.5 ppb (5) 1.6 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 18.0 ppb (17) 0.05 ppb (2) N/A 2.3 μg/m3 (10) 17.0
 
June 12, 2021, 2 p.m. 5.2 ppb (5) 1.6 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 13.0 ppb (13) 0.06 ppb (2) N/A 2.7 μg/m3 (12) 13.0
 
June 12, 2021, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 5.0 ppb (5) 0.11 ppb (2) N/A 3.5 μg/m3 (15) 15.0
 
June 12, 2021, noon 7.5 ppb (8) 1.5 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 4.0 ppb (4) 0.06 ppb (2) N/A 3.3 μg/m3 (14) 14.0
 
June 12, 2021, 11 a.m. 6.6 ppb (7) 0.8 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 7.0 ppb (7) 0.08 ppb (2) N/A 2.6 μg/m3 (11) 11.0
 
June 12, 2021, 10 a.m. 5.7 ppb (6) 0.6 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 9.0 ppb (9) 0.09 ppb (2) N/A 2.6 μg/m3 (11) 11.0
 
June 12, 2021, 9 a.m. 3.1 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 18.0 ppb (17) 0.03 ppb (0) N/A 2.2 μg/m3 (10) 17.0
 
June 12, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 21.0 ppb (20) 0.02 ppb (0) N/A 2.2 μg/m3 (10) 20.0
 
June 12, 2021, 7 a.m. 3.0 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 21.0 ppb (20) 0.02 ppb (0) N/A 2.3 μg/m3 (10) 20.0
 
June 12, 2021, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (19) 0.03 ppb (0) N/A 2.3 μg/m3 (10) 19.0
 
June 12, 2021, 5 a.m. 3.1 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 20.0 ppb (19) 0.03 ppb (0) N/A 3.2 μg/m3 (14) 19.0
 
June 12, 2021, 4 a.m. 5.7 ppb (6) 0.4 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 17.0 ppb (16) 0.07 ppb (2) N/A 4.5 μg/m3 (19) 19.0
 
June 12, 2021, 3 a.m. 7.4 ppb (7) 0.7 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 16.0 ppb (15) 0.12 ppb (2) N/A 7.1 μg/m3 (30) 30.0
 
June 12, 2021, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 19.0 ppb (18) 0.09 ppb (2) N/A 4.3 μg/m3 (18) 18.0
 
June 12, 2021, 1 a.m. 4.6 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 22.0 ppb (21) 0.07 ppb (2) N/A 4.9 μg/m3 (21) 21.0
 
June 12, 2021, midnight 5.2 ppb (5) 1.3 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 25.0 ppb (24) 0.05 ppb (2) N/A 4.7 μg/m3 (20) 24.0
 
June 11, 2021, 11 p.m. 4.2 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (24) 0.05 ppb (2) N/A 4.4 μg/m3 (19) 24.0
 
June 11, 2021, 10 p.m. 5.9 ppb (6) 1.5 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 23.0 ppb (22) 0.07 ppb (2) N/A 4.8 μg/m3 (20) 22.0
 
June 11, 2021, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 18.0 ppb (17) 0.11 ppb (2) N/A 5.3 μg/m3 (23) 23.0
 
June 11, 2021, 8 p.m. 9.7 ppb (10) 2.4 ppb (3) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 18.0 ppb (17) 0.1 ppb (2) N/A 4.8 μg/m3 (20) 20.0
 
June 11, 2021, 7 p.m. 8.0 ppb (8) 1.9 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 18.0 ppb (17) 0.08 ppb (2) N/A 4.1 μg/m3 (18) 18.0
 
June 11, 2021, 6 p.m. 9.2 ppb (9) 3.0 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 17.0 ppb (16) 0.09 ppb (2) N/A 3.9 μg/m3 (17) 17.0
 
June 11, 2021, 5 p.m. 14.9 ppb (15) 6.0 ppb (6) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 14.0 ppb (13) 0.13 ppb (2) N/A 4.5 μg/m3 (19) 19.0
 
June 11, 2021, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 9.0 ppb (9) 0.16 ppb (3) N/A 4.4 μg/m3 (19) 19.0
 
June 11, 2021, 3 p.m. 17.2 ppb (17) 5.5 ppb (6) N/A 12.0 ppb (12) N/A 1.0 ppb (2) 11.0 ppb (11) 0.16 ppb (3) N/A 4.2 μg/m3 (18) 18.0
 
June 11, 2021, 2 p.m. 18.8 ppb (18) 4.7 ppb (5) N/A 14.0 ppb (14) N/A 1.0 ppb (2) 6.0 ppb (6) 0.15 ppb (2) N/A 4.2 μg/m3 (18) 18.0
 
June 11, 2021, 1 p.m. 12.5 ppb (12) 1.8 ppb (2) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 9.0 ppb (9) 0.14 ppb (2) N/A 3.7 μg/m3 (16) 16.0
 
June 11, 2021, noon 6.4 ppb (7) 0.4 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 14.0 ppb (13) 0.07 ppb (2) N/A 3.5 μg/m3 (15) 15.0
 
June 11, 2021, 11 a.m. 7.6 ppb (8) 0.5 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 14.0 ppb (13) 0.08 ppb (2) N/A 3.8 μg/m3 (16) 16.0
 
June 11, 2021, 10 a.m. 7.4 ppb (7) 0.4 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 15.0 ppb (14) 0.08 ppb (2) N/A 3.5 μg/m3 (15) 15.0
 
June 11, 2021, 9 a.m. 6.8 ppb (7) 0.4 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 19.0 ppb (18) 0.08 ppb (2) N/A 3.2 μg/m3 (14) 18.0
 
June 11, 2021, 8 a.m. 13.2 ppb (13) 0.5 ppb (1) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 13.0 ppb (13) 0.12 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
June 11, 2021, 7 a.m. 12.8 ppb (13) 0.6 ppb (1) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 12.0 ppb (12) 0.1 ppb (2) N/A 3.6 μg/m3 (16) 16.0
 
June 11, 2021, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 15.0 ppb (14) 0.08 ppb (2) N/A 3.3 μg/m3 (14) 14.0
 
June 11, 2021, 5 a.m. 7.9 ppb (8) 0.3 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 22.0 ppb (21) 0.09 ppb (2) N/A 3.0 μg/m3 (13) 21.0
 
June 11, 2021, 4 a.m. 7.5 ppb (8) 0.4 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 23.0 ppb (22) 0.09 ppb (2) N/A 3.4 μg/m3 (15) 22.0
 
June 11, 2021, 3 a.m. 6.7 ppb (7) 0.7 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 26.0 ppb (25) 0.08 ppb (2) N/A 3.1 μg/m3 (13) 25.0
 
June 11, 2021, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (31) 0.05 ppb (2) N/A 2.5 μg/m3 (11) 31.0
 
June 11, 2021, 1 a.m. 3.2 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (31) 0.07 ppb (2) N/A 3.1 μg/m3 (13) 31.0
 
June 11, 2021, midnight 1.6 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (35) 0.04 ppb (0) N/A 2.3 μg/m3 (10) 35.0
 
June 10, 2021, 11 p.m. 1.1 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (35) 0.04 ppb (0) N/A 2.1 μg/m3 (9) 35.0
 
June 10, 2021, 10 p.m. 1.3 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (35) 0.03 ppb (0) N/A 2.2 μg/m3 (10) 35.0
 
June 10, 2021, 9 p.m. 1.5 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 36.0 ppb (34) 0.03 ppb (0) N/A 2.3 μg/m3 (10) 34.0
 
June 10, 2021, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.03 ppb (0) N/A 2.2 μg/m3 (10) 33.0