ID: 1236

AQSQID: 410510080

Site Name: Portland - Se Lafayette

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

Updated: Jan. 21, 2022, 10:33 a.m.

Location: Portland (Foster-Powell), OR

Reporting: True, Located: True

Current AQI: 28.0

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
Jan. 21, 2022, 9 a.m. 10.6 ppb (10) 0.7 ppb (1) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 14.0 ppb (13) 0.14 ppb (2) N/A 6.6 μg/m3 (28) 28.0
 
Jan. 21, 2022, 8 a.m. 9.7 ppb (10) 0.7 ppb (1) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 18.0 ppb (17) 0.16 ppb (3) N/A 6.1 μg/m3 (26) 26.0
 
Jan. 21, 2022, 7 a.m. 16.1 ppb (16) 1.0 ppb (1) N/A 15.0 ppb (15) N/A 1.0 ppb (2) 16.0 ppb (15) 0.17 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 21, 2022, 6 a.m. 19.1 ppb (19) 1.4 ppb (2) N/A 18.0 ppb (17) N/A 1.0 ppb (2) 12.0 ppb (12) 0.15 ppb (2) N/A 3.2 μg/m3 (14) 19.0
 
Jan. 21, 2022, 5 a.m. 17.9 ppb (17) 0.8 ppb (1) N/A 17.0 ppb (17) N/A 1.0 ppb (2) 22.0 ppb (21) 0.14 ppb (2) N/A 3.9 μg/m3 (17) 21.0
 
Jan. 21, 2022, 4 a.m. 19.4 ppb (19) 0.9 ppb (1) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 21.0 ppb (20) 0.16 ppb (3) N/A 4.5 μg/m3 (19) 20.0
 
Jan. 21, 2022, 3 a.m. 10.8 ppb (11) 0.8 ppb (1) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 28.0 ppb (26) 0.09 ppb (2) N/A 3.8 μg/m3 (16) 26.0
 
Jan. 21, 2022, 2 a.m. 6.6 ppb (7) 0.8 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 31.0 ppb (29) 0.07 ppb (2) N/A 2.4 μg/m3 (10) 29.0
 
Jan. 21, 2022, 1 a.m. 6.5 ppb (7) 0.5 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 30.0 ppb (28) 0.08 ppb (2) N/A 1.8 μg/m3 (8) 28.0
 
Jan. 21, 2022, midnight 5.1 ppb (5) 0.5 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 30.0 ppb (28) 0.05 ppb (2) N/A 1.6 μg/m3 (7) 28.0
 
Jan. 20, 2022, 11 p.m. 3.2 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 32.0 ppb (30) 0.03 ppb (0) N/A 1.3 μg/m3 (6) 30.0
 
Jan. 20, 2022, 10 p.m. 3.1 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 30.0 ppb (28) 0.02 ppb (0) N/A 1.4 μg/m3 (6) 28.0
 
Jan. 20, 2022, 9 p.m. 2.6 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 30.0 ppb (28) 0.0 ppb (0) N/A 1.4 μg/m3 (6) 28.0
 
Jan. 20, 2022, 8 p.m. 4.0 ppb (4) 1.3 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 27.0 ppb (25) 0.01 ppb (0) N/A 1.6 μg/m3 (7) 25.0
 
Jan. 20, 2022, 7 p.m. 5.0 ppb (5) 1.4 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 25.0 ppb (24) 0.01 ppb (0) N/A 1.7 μg/m3 (8) 24.0
 
Jan. 20, 2022, 6 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 24.0 ppb (23) 0.01 ppb (0) N/A 1.9 μg/m3 (8) 23.0
 
Jan. 20, 2022, 5 p.m. 5.6 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 22.0 ppb (21) 0.02 ppb (0) N/A 2.1 μg/m3 (9) 21.0
 
Jan. 20, 2022, 4 p.m. 5.7 ppb (6) 0.6 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 19.0 ppb (18) 0.02 ppb (0) N/A 2.2 μg/m3 (10) 18.0
 
Jan. 20, 2022, 3 p.m. 5.3 ppb (5) 0.5 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 20.0 ppb (19) 0.02 ppb (0) N/A 2.0 μg/m3 (9) 19.0
 
Jan. 20, 2022, 2 p.m. 3.9 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 19.0 ppb (18) 0.01 ppb (0) N/A 1.9 μg/m3 (8) 18.0
 
Jan. 20, 2022, 1 p.m. 2.8 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 20.0 ppb (19) N/A N/A 1.8 μg/m3 (8) 19.0
 
Jan. 20, 2022, noon 2.3 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 22.0 ppb (21) N/A N/A 1.8 μg/m3 (8) 21.0
 
Jan. 20, 2022, 11 a.m. 1.6 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 22.0 ppb (21) N/A N/A 1.7 μg/m3 (8) 21.0
 
Jan. 20, 2022, 10 a.m. 1.5 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 23.0 ppb (22) N/A N/A 1.7 μg/m3 (8) 22.0
 
Jan. 20, 2022, 9 a.m. 2.5 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 22.0 ppb (21) 0.01 ppb (0) N/A 1.6 μg/m3 (7) 21.0
 
Jan. 20, 2022, 8 a.m. 15.2 ppb (15) 1.9 ppb (2) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 5.0 ppb (5) 0.14 ppb (2) N/A 4.7 μg/m3 (20) 20.0
 
Jan. 20, 2022, 7 a.m. 14.4 ppb (14) 1.5 ppb (2) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 6.0 ppb (6) 0.12 ppb (2) N/A 4.6 μg/m3 (20) 20.0
 
Jan. 20, 2022, 6 a.m. 13.6 ppb (13) 1.2 ppb (2) N/A 12.0 ppb (12) N/A 1.0 ppb (2) 7.0 ppb (7) 0.12 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 20, 2022, 5 a.m. 13.6 ppb (13) 1.2 ppb (2) N/A 12.0 ppb (12) N/A 1.0 ppb (2) 8.0 ppb (8) 0.14 ppb (2) N/A 5.2 μg/m3 (22) 22.0
 
Jan. 20, 2022, 4 a.m. 15.2 ppb (15) 1.6 ppb (2) N/A 14.0 ppb (14) N/A 1.0 ppb (2) 7.0 ppb (7) 0.15 ppb (2) N/A 5.5 μg/m3 (23) 23.0
 
Jan. 20, 2022, 3 a.m. 15.4 ppb (15) 1.4 ppb (2) N/A 14.0 ppb (14) N/A 1.0 ppb (2) 8.0 ppb (8) 0.15 ppb (2) N/A 5.8 μg/m3 (25) 25.0
 
Jan. 20, 2022, 2 a.m. 19.3 ppb (19) 2.5 ppb (3) N/A 17.0 ppb (17) N/A 1.0 ppb (2) 5.0 ppb (5) 0.16 ppb (3) N/A 5.1 μg/m3 (22) 22.0
 
Jan. 20, 2022, 1 a.m. 25.0 ppb (24) 5.4 ppb (6) N/A 20.0 ppb (19) N/A 1.0 ppb (2) 3.0 ppb (3) 0.19 ppb (3) N/A 4.4 μg/m3 (19) 24.0
 
Jan. 20, 2022, midnight 24.4 ppb (24) 6.6 ppb (7) N/A 18.0 ppb (17) N/A 1.0 ppb (2) 4.0 ppb (4) 0.18 ppb (3) N/A 3.9 μg/m3 (17) 24.0
 
Jan. 19, 2022, 11 p.m. 24.4 ppb (24) 8.2 ppb (8) N/A 16.0 ppb (16) N/A 1.0 ppb (2) 4.0 ppb (4) 0.18 ppb (3) N/A 3.4 μg/m3 (15) 24.0
 
Jan. 19, 2022, 10 p.m. 23.6 ppb (23) 8.7 ppb (9) N/A 15.0 ppb (15) N/A 1.0 ppb (2) 4.0 ppb (4) 0.17 ppb (3) N/A 3.6 μg/m3 (16) 23.0
 
Jan. 19, 2022, 9 p.m. 18.2 ppb (18) 6.5 ppb (7) N/A 12.0 ppb (12) N/A 1.0 ppb (2) 6.0 ppb (6) 0.14 ppb (2) N/A 3.4 μg/m3 (15) 18.0
 
Jan. 19, 2022, 8 p.m. 22.6 ppb (22) 10.3 ppb (10) N/A 12.0 ppb (12) N/A 1.0 ppb (2) 5.0 ppb (5) 0.17 ppb (3) N/A 3.6 μg/m3 (16) 22.0
 
Jan. 19, 2022, 7 p.m. 23.1 ppb (22) 10.5 ppb (10) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 5.0 ppb (5) 0.19 ppb (3) N/A 3.7 μg/m3 (16) 22.0
 
Jan. 19, 2022, 6 p.m. 26.3 ppb (25) 13.0 ppb (13) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 4.0 ppb (4) 0.2 ppb (3) N/A 8.7 μg/m3 (37) 37.0
 
Jan. 19, 2022, 5 p.m. 34.5 ppb (33) 20.1 ppb (19) N/A 14.0 ppb (14) N/A 1.0 ppb (2) 3.0 ppb (3) 0.26 ppb (4) N/A 5.4 μg/m3 (23) 33.0
 
Jan. 19, 2022, 4 p.m. 24.4 ppb (24) 10.9 ppb (11) N/A 14.0 ppb (14) N/A 1.0 ppb (2) 2.0 ppb (2) 0.2 ppb (3) N/A 3.4 μg/m3 (15) 24.0
 
Jan. 19, 2022, 3 p.m. 19.0 ppb (18) 4.7 ppb (5) N/A 14.0 ppb (14) N/A 1.0 ppb (2) 3.0 ppb (3) 0.15 ppb (2) N/A 3.5 μg/m3 (15) 18.0
 
Jan. 19, 2022, 2 p.m. 12.8 ppb (13) 2.0 ppb (2) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 6.0 ppb (6) 0.13 ppb (2) N/A 6.6 μg/m3 (28) 28.0
 
Jan. 19, 2022, 1 p.m. 13.2 ppb (13) 2.1 ppb (2) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 5.0 ppb (5) 0.13 ppb (2) N/A 9.1 μg/m3 (38) 38.0
 
Jan. 19, 2022, noon 17.2 ppb (17) 5.1 ppb (5) N/A 12.0 ppb (12) N/A 1.0 ppb (2) 3.0 ppb (3) 0.17 ppb (3) N/A 7.5 μg/m3 (32) 32.0
 
Jan. 19, 2022, 11 a.m. 41.0 ppb (39) 29.3 ppb (28) N/A 12.0 ppb (12) N/A 1.0 ppb (2) 2.0 ppb (2) 0.29 ppb (4) N/A 13.9 μg/m3 (55) 55.0
 
Jan. 19, 2022, 10 a.m. 47.1 ppb (45) 35.5 ppb (34) N/A 12.0 ppb (12) N/A 1.0 ppb (2) 2.0 ppb (2) 0.33 ppb (4) N/A 15.1 μg/m3 (58) 58.0
 
Jan. 19, 2022, 9 a.m. 54.5 ppb (52) 41.8 ppb (40) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 2.0 ppb (2) 0.37 ppb (5) N/A 18.8 μg/m3 (66) 66.0
 
Jan. 19, 2022, 8 a.m. 52.7 ppb (50) 39.4 ppb (38) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 2.0 ppb (2) 0.39 ppb (5) N/A 19.1 μg/m3 (66) 66.0
 
Jan. 19, 2022, 7 a.m. 53.5 ppb (51) 40.5 ppb (39) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 2.0 ppb (2) 0.45 ppb (6) N/A 20.5 μg/m3 (69) 69.0
 
Jan. 19, 2022, 6 a.m. 52.4 ppb (50) 38.5 ppb (37) N/A 14.0 ppb (14) N/A 1.0 ppb (2) 2.0 ppb (2) 0.46 ppb (6) N/A 19.9 μg/m3 (68) 68.0
 
Jan. 19, 2022, 5 a.m. 41.7 ppb (40) 27.7 ppb (27) N/A 14.0 ppb (14) N/A 1.0 ppb (2) 2.0 ppb (2) 0.42 ppb (5) N/A 16.3 μg/m3 (60) 60.0
 
Jan. 19, 2022, 4 a.m. 37.1 ppb (35) 23.4 ppb (23) N/A 14.0 ppb (14) N/A 1.0 ppb (2) 2.0 ppb (2) 0.36 ppb (5) N/A 14.3 μg/m3 (56) 56.0
 
Jan. 19, 2022, 3 a.m. 39.4 ppb (38) 24.4 ppb (24) N/A 15.0 ppb (15) N/A 1.0 ppb (2) 2.0 ppb (2) 0.35 ppb (4) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 19, 2022, 2 a.m. 40.9 ppb (39) 25.6 ppb (25) N/A 15.0 ppb (15) N/A 1.0 ppb (2) 2.0 ppb (2) 0.34 ppb (4) N/A 13.9 μg/m3 (55) 55.0
 
Jan. 19, 2022, 1 a.m. 43.2 ppb (41) 27.9 ppb (27) N/A 15.0 ppb (15) N/A 1.0 ppb (2) 2.0 ppb (2) 0.36 ppb (5) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 19, 2022, midnight 42.6 ppb (41) 27.3 ppb (26) N/A 15.0 ppb (15) N/A 1.0 ppb (2) 2.0 ppb (2) 0.36 ppb (5) N/A 11.5 μg/m3 (48) 48.0
 
Jan. 18, 2022, 11 p.m. 41.3 ppb (39) 25.0 ppb (24) N/A 16.0 ppb (16) N/A 1.0 ppb (2) 3.0 ppb (3) 0.29 ppb (4) N/A 11.3 μg/m3 (48) 48.0
 
Jan. 18, 2022, 10 p.m. 13.9 ppb (14) 4.5 ppb (5) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 8.0 ppb (8) 0.13 ppb (2) N/A 6.8 μg/m3 (29) 29.0
 
Jan. 18, 2022, 9 p.m. 11.0 ppb (11) 3.4 ppb (4) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 9.0 ppb (9) 0.13 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 18, 2022, 8 p.m. 14.3 ppb (14) 5.9 ppb (6) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 8.0 ppb (8) 0.15 ppb (2) N/A 6.7 μg/m3 (28) 28.0
 
Jan. 18, 2022, 7 p.m. 26.0 ppb (25) 15.3 ppb (15) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 4.0 ppb (4) 0.21 ppb (3) N/A 7.6 μg/m3 (32) 32.0
 
Jan. 18, 2022, 6 p.m. 21.5 ppb (21) 11.8 ppb (12) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 3.0 ppb (3) 0.23 ppb (3) N/A 6.7 μg/m3 (28) 28.0
 
Jan. 18, 2022, 5 p.m. 23.2 ppb (22) 14.3 ppb (14) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 3.0 ppb (3) 0.28 ppb (4) N/A 6.9 μg/m3 (29) 29.0
 
Jan. 18, 2022, 4 p.m. 20.2 ppb (20) 11.8 ppb (12) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 2.0 ppb (2) 0.26 ppb (4) N/A 6.5 μg/m3 (28) 28.0
 
Jan. 18, 2022, 3 p.m. 16.7 ppb (16) 8.6 ppb (9) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 2.0 ppb (2) 0.2 ppb (3) N/A 6.7 μg/m3 (28) 28.0
 
Jan. 18, 2022, 2 p.m. 19.0 ppb (18) 11.7 ppb (12) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 2.0 ppb (2) 0.21 ppb (3) N/A 8.7 μg/m3 (37) 37.0
 
Jan. 18, 2022, 1 p.m. 15.8 ppb (15) 8.4 ppb (8) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 2.0 ppb (2) 0.19 ppb (3) N/A 9.5 μg/m3 (40) 40.0
 
Jan. 18, 2022, noon 12.4 ppb (12) 5.2 ppb (5) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 2.0 ppb (2) 0.19 ppb (3) N/A 8.8 μg/m3 (37) 37.0
 
Jan. 18, 2022, 11 a.m. 9.8 ppb (10) 2.7 ppb (3) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 2.0 ppb (2) 0.18 ppb (3) N/A 9.2 μg/m3 (39) 39.0
 
Jan. 18, 2022, 10 a.m. 9.8 ppb (10) 2.5 ppb (3) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 2.0 ppb (2) 0.18 ppb (3) N/A 14.9 μg/m3 (57) 57.0
 
Jan. 18, 2022, 9 a.m. 11.3 ppb (11) 2.4 ppb (3) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 2.0 ppb (2) 0.17 ppb (3) N/A 18.6 μg/m3 (65) 65.0
 
Jan. 18, 2022, 8 a.m. 9.0 ppb (9) 1.4 ppb (2) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 4.0 ppb (4) 0.17 ppb (3) N/A 17.3 μg/m3 (62) 62.0
 
Jan. 18, 2022, 7 a.m. 9.1 ppb (9) 1.4 ppb (2) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 5.0 ppb (5) 0.17 ppb (3) N/A 16.6 μg/m3 (61) 61.0
 
Jan. 18, 2022, 6 a.m. 10.3 ppb (10) 1.8 ppb (2) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 5.0 ppb (5) 0.18 ppb (3) N/A 18.0 μg/m3 (64) 64.0
 
Jan. 18, 2022, 5 a.m. 15.3 ppb (15) 2.7 ppb (3) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 3.0 ppb (3) 0.21 ppb (3) N/A 17.2 μg/m3 (62) 62.0
 
Jan. 18, 2022, 4 a.m. 16.3 ppb (16) 2.7 ppb (3) N/A 14.0 ppb (14) N/A 1.0 ppb (2) 2.0 ppb (2) 0.2 ppb (3) N/A 14.9 μg/m3 (57) 57.0
 
Jan. 18, 2022, 3 a.m. 16.8 ppb (16) 3.5 ppb (4) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 3.0 ppb (3) 0.2 ppb (3) N/A 14.3 μg/m3 (56) 56.0
 
Jan. 18, 2022, 2 a.m. 15.5 ppb (15) 3.2 ppb (4) N/A 12.0 ppb (12) N/A 1.0 ppb (2) 2.0 ppb (2) 0.2 ppb (3) N/A 14.7 μg/m3 (57) 57.0
 
Jan. 18, 2022, 1 a.m. 14.9 ppb (15) 3.4 ppb (4) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 3.0 ppb (3) 0.22 ppb (3) N/A 14.4 μg/m3 (56) 56.0
 
Jan. 18, 2022, midnight 15.8 ppb (15) 5.0 ppb (5) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 4.0 ppb (4) 0.21 ppb (3) N/A 14.2 μg/m3 (56) 56.0
 
Jan. 17, 2022, 11 p.m. 15.6 ppb (15) 6.6 ppb (7) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 5.0 ppb (5) 0.23 ppb (3) N/A 14.7 μg/m3 (57) 57.0
 
Jan. 17, 2022, 10 p.m. 14.3 ppb (14) 7.4 ppb (7) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 5.0 ppb (5) 0.19 ppb (3) N/A 13.1 μg/m3 (54) 54.0
 
Jan. 17, 2022, 9 p.m. 13.6 ppb (13) 7.5 ppb (8) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 5.0 ppb (5) 0.19 ppb (3) N/A 12.2 μg/m3 (52) 52.0
 
Jan. 17, 2022, 8 p.m. 14.6 ppb (14) 8.6 ppb (9) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 4.0 ppb (4) 0.2 ppb (3) N/A 12.6 μg/m3 (53) 53.0
 
Jan. 17, 2022, 7 p.m. 18.4 ppb (18) 11.8 ppb (12) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 3.0 ppb (3) 0.2 ppb (3) N/A 14.7 μg/m3 (57) 57.0
 
Jan. 17, 2022, 6 p.m. 18.0 ppb (17) 11.0 ppb (11) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 4.0 ppb (4) 0.21 ppb (3) N/A 14.5 μg/m3 (57) 57.0
 
Jan. 17, 2022, 5 p.m. 16.7 ppb (16) 9.5 ppb (9) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 3.0 ppb (3) 0.2 ppb (3) N/A 13.8 μg/m3 (55) 55.0
 
Jan. 17, 2022, 4 p.m. 16.0 ppb (16) 8.5 ppb (9) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 2.0 ppb (2) 0.2 ppb (3) N/A 13.6 μg/m3 (55) 55.0
 
Jan. 17, 2022, 3 p.m. 13.2 ppb (13) 5.3 ppb (5) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 2.0 ppb (2) 0.19 ppb (3) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 17, 2022, 2 p.m. 13.2 ppb (13) 5.4 ppb (6) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 2.0 ppb (2) 0.19 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 17, 2022, 1 p.m. 13.8 ppb (14) 6.0 ppb (6) N/A 8.0 ppb (8) N/A N/A 2.0 ppb (2) 0.2 ppb (3) N/A 11.8 μg/m3 (50) 50.0
 
Jan. 17, 2022, noon 12.4 ppb (12) 4.6 ppb (5) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 2.0 ppb (2) 0.2 ppb (3) N/A 11.9 μg/m3 (50) 50.0
 
Jan. 17, 2022, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 2.0 ppb (2) 0.23 ppb (3) N/A 10.4 μg/m3 (44) 44.0
 
Jan. 17, 2022, 10 a.m. 18.8 ppb (18) 9.6 ppb (10) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 2.0 ppb (2) N/A N/A 6.4 μg/m3 (27) 27.0
 
Jan. 17, 2022, 9 a.m. 13.2 ppb (13) 4.3 ppb (5) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 3.0 ppb (3) 0.14 ppb (2) N/A 4.6 μg/m3 (20) 20.0
 
Jan. 17, 2022, 8 a.m. 8.8 ppb (9) 2.0 ppb (2) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 7.0 ppb (7) 0.12 ppb (2) N/A 3.4 μg/m3 (15) 15.0
 
Jan. 17, 2022, 7 a.m. 15.7 ppb (15) 5.0 ppb (5) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 4.0 ppb (4) 0.18 ppb (3) N/A 6.7 μg/m3 (28) 28.0
 
Jan. 17, 2022, 6 a.m. 21.5 ppb (21) 9.7 ppb (10) N/A 12.0 ppb (12) N/A 1.0 ppb (2) 3.0 ppb (3) 0.23 ppb (3) N/A 6.4 μg/m3 (27) 27.0
 
Jan. 17, 2022, 5 a.m. 20.8 ppb (20) 7.8 ppb (8) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 2.0 ppb (2) 0.24 ppb (3) N/A 6.7 μg/m3 (28) 28.0
 
Jan. 17, 2022, 4 a.m. 15.3 ppb (15) 3.7 ppb (4) N/A 12.0 ppb (12) N/A 1.0 ppb (2) 4.0 ppb (4) 0.18 ppb (3) N/A 5.6 μg/m3 (24) 24.0
 
Jan. 17, 2022, 3 a.m. 11.9 ppb (12) 2.2 ppb (3) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 6.0 ppb (6) 0.15 ppb (2) N/A 4.6 μg/m3 (20) 20.0
 
Jan. 17, 2022, 2 a.m. 19.7 ppb (19) 6.6 ppb (7) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 4.0 ppb (4) 0.23 ppb (3) N/A 7.7 μg/m3 (33) 33.0
 
Jan. 17, 2022, 1 a.m. 17.8 ppb (17) 5.1 ppb (5) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 3.0 ppb (3) 0.22 ppb (3) N/A 5.8 μg/m3 (25) 25.0
 
Jan. 17, 2022, midnight 17.4 ppb (17) 7.1 ppb (7) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 5.0 ppb (5) 0.21 ppb (3) N/A 6.6 μg/m3 (28) 28.0
 
Jan. 16, 2022, 11 p.m. 12.6 ppb (12) 4.8 ppb (5) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 8.0 ppb (8) 0.2 ppb (3) N/A 5.8 μg/m3 (25) 25.0
 
Jan. 16, 2022, 10 p.m. 16.3 ppb (16) 8.8 ppb (9) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 6.0 ppb (6) 0.22 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 16, 2022, 9 p.m. 13.6 ppb (13) 7.9 ppb (8) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 8.0 ppb (8) 0.19 ppb (3) N/A 7.4 μg/m3 (31) 31.0
 
Jan. 16, 2022, 8 p.m. 11.9 ppb (12) 6.9 ppb (7) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 9.0 ppb (9) 0.16 ppb (3) N/A 6.1 μg/m3 (26) 26.0
 
Jan. 16, 2022, 7 p.m. 7.6 ppb (8) 4.0 ppb (4) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 12.0 ppb (12) 0.11 ppb (2) N/A 4.4 μg/m3 (19) 19.0
 
Jan. 16, 2022, 6 p.m. 12.8 ppb (13) 7.5 ppb (8) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 8.0 ppb (8) 0.16 ppb (3) N/A 7.5 μg/m3 (32) 32.0
 
Jan. 16, 2022, 5 p.m. 17.4 ppb (17) 9.3 ppb (9) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 5.0 ppb (5) 0.17 ppb (3) N/A 7.9 μg/m3 (33) 33.0
 
Jan. 16, 2022, 4 p.m. 14.6 ppb (14) 5.1 ppb (5) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 4.0 ppb (4) 0.17 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
Jan. 16, 2022, 3 p.m. 15.5 ppb (15) 4.5 ppb (5) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 3.0 ppb (3) 0.18 ppb (3) N/A 6.6 μg/m3 (28) 28.0
 
Jan. 16, 2022, 2 p.m. 15.7 ppb (15) 4.6 ppb (5) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 3.0 ppb (3) 0.18 ppb (3) N/A 7.2 μg/m3 (31) 31.0
 
Jan. 16, 2022, 1 p.m. 16.3 ppb (16) 5.7 ppb (6) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 2.0 ppb (2) 0.19 ppb (3) N/A 8.9 μg/m3 (38) 38.0
 
Jan. 16, 2022, noon 15.0 ppb (15) 4.5 ppb (5) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 2.0 ppb (2) 0.18 ppb (3) N/A 11.1 μg/m3 (47) 47.0
 
Jan. 16, 2022, 11 a.m. 16.3 ppb (16) 5.4 ppb (6) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 2.0 ppb (2) 0.2 ppb (3) N/A 14.3 μg/m3 (56) 56.0
 
Jan. 16, 2022, 10 a.m. 23.2 ppb (22) 9.4 ppb (9) N/A 14.0 ppb (14) N/A 1.0 ppb (2) 2.0 ppb (2) 0.21 ppb (3) N/A 11.5 μg/m3 (48) 48.0
 
Jan. 16, 2022, 9 a.m. 15.0 ppb (15) 4.1 ppb (4) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 3.0 ppb (3) 0.16 ppb (3) N/A 7.6 μg/m3 (32) 32.0
 
Jan. 16, 2022, 8 a.m. 10.3 ppb (10) 2.2 ppb (3) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 5.0 ppb (5) 0.13 ppb (2) N/A 5.2 μg/m3 (22) 22.0
 
Jan. 16, 2022, 7 a.m. 11.7 ppb (12) 3.1 ppb (3) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 5.0 ppb (5) 0.13 ppb (2) N/A 4.9 μg/m3 (21) 21.0
 
Jan. 16, 2022, 6 a.m. 14.4 ppb (14) 4.2 ppb (4) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 4.0 ppb (4) 0.15 ppb (2) N/A 5.6 μg/m3 (24) 24.0
 
Jan. 16, 2022, 5 a.m. 15.4 ppb (15) 4.6 ppb (5) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 4.0 ppb (4) 0.17 ppb (3) N/A 7.7 μg/m3 (33) 33.0
 
Jan. 16, 2022, 4 a.m. 17.6 ppb (17) 5.3 ppb (5) N/A 12.0 ppb (12) N/A 1.0 ppb (2) 3.0 ppb (3) 0.22 ppb (3) N/A 8.9 μg/m3 (38) 38.0
 
Jan. 16, 2022, 3 a.m. 20.4 ppb (20) 7.3 ppb (7) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 3.0 ppb (3) 0.23 ppb (3) N/A 7.6 μg/m3 (32) 32.0
 
Jan. 16, 2022, 2 a.m. 40.9 ppb (39) 24.2 ppb (23) N/A 17.0 ppb (17) N/A 1.0 ppb (2) 2.0 ppb (2) 0.33 ppb (4) N/A 13.2 μg/m3 (54) 54.0
 
Jan. 16, 2022, 1 a.m. 28.3 ppb (27) 13.2 ppb (13) N/A 15.0 ppb (15) N/A 1.0 ppb (2) 2.0 ppb (2) 0.28 ppb (4) N/A 6.8 μg/m3 (29) 29.0
 
Jan. 16, 2022, midnight 16.9 ppb (16) 4.9 ppb (5) N/A 12.0 ppb (12) N/A 1.0 ppb (2) 6.0 ppb (6) 0.2 ppb (3) N/A 4.6 μg/m3 (20) 20.0
 
Jan. 15, 2022, 11 p.m. 11.7 ppb (12) 4.1 ppb (4) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 11.0 ppb (11) 0.14 ppb (2) N/A 4.1 μg/m3 (18) 18.0
 
Jan. 15, 2022, 10 p.m. 12.7 ppb (12) 5.8 ppb (6) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 12.0 ppb (12) 0.15 ppb (2) N/A 4.4 μg/m3 (19) 19.0
 
Jan. 15, 2022, 9 p.m. 12.2 ppb (12) 5.9 ppb (6) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 12.0 ppb (12) 0.15 ppb (2) N/A 4.7 μg/m3 (20) 20.0
 
Jan. 15, 2022, 8 p.m. 12.4 ppb (12) 6.8 ppb (7) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 11.0 ppb (11) 0.14 ppb (2) N/A 4.1 μg/m3 (18) 18.0
 
Jan. 15, 2022, 7 p.m. 15.1 ppb (15) 8.9 ppb (9) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 11.0 ppb (11) 0.15 ppb (2) N/A 4.4 μg/m3 (19) 19.0
 
Jan. 15, 2022, 6 p.m. 24.5 ppb (24) 14.8 ppb (14) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 7.0 ppb (7) 0.21 ppb (3) N/A 7.1 μg/m3 (30) 30.0
 
Jan. 15, 2022, 5 p.m. 17.3 ppb (17) 8.1 ppb (8) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 8.0 ppb (8) 0.17 ppb (3) N/A 5.4 μg/m3 (23) 23.0
 
Jan. 15, 2022, 4 p.m. 28.9 ppb (28) 16.1 ppb (16) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 3.0 ppb (3) 0.25 ppb (3) N/A 10.1 μg/m3 (43) 43.0
 
Jan. 15, 2022, 3 p.m. 16.8 ppb (16) 4.5 ppb (5) N/A 12.0 ppb (12) N/A 1.0 ppb (2) 4.0 ppb (4) 0.12 ppb (2) N/A 4.3 μg/m3 (18) 18.0
 
Jan. 15, 2022, 2 p.m. 13.6 ppb (13) 2.6 ppb (3) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 7.0 ppb (7) 0.1 ppb (2) N/A 3.8 μg/m3 (16) 16.0
 
Jan. 15, 2022, 1 p.m. 10.4 ppb (10) 1.5 ppb (2) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 9.0 ppb (9) 0.09 ppb (2) N/A 4.4 μg/m3 (19) 19.0
 
Jan. 15, 2022, noon 24.8 ppb (24) 8.8 ppb (9) N/A 16.0 ppb (16) N/A 1.0 ppb (2) 3.0 ppb (3) 0.2 ppb (3) N/A 9.4 μg/m3 (40) 40.0
 
Jan. 15, 2022, 11 a.m. 22.5 ppb (22) 6.3 ppb (6) N/A 16.0 ppb (16) N/A 1.0 ppb (2) 3.0 ppb (3) 0.2 ppb (3) N/A 7.4 μg/m3 (31) 31.0
 
Jan. 15, 2022, 10 a.m. 6.5 ppb (7) 1.2 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 16.0 ppb (15) 0.07 ppb (2) N/A 3.3 μg/m3 (14) 15.0
 
Jan. 15, 2022, 9 a.m. 4.6 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 19.0 ppb (18) 0.06 ppb (2) N/A 2.7 μg/m3 (12) 18.0
 
Jan. 15, 2022, 8 a.m. 6.2 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 17.0 ppb (16) 0.07 ppb (2) N/A 3.4 μg/m3 (15) 16.0
 
Jan. 15, 2022, 7 a.m. 10.5 ppb (10) 1.5 ppb (2) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 12.0 ppb (12) 0.11 ppb (2) N/A 4.3 μg/m3 (18) 18.0
 
Jan. 15, 2022, 6 a.m. 9.3 ppb (9) 1.1 ppb (2) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 13.0 ppb (13) 0.1 ppb (2) N/A 3.7 μg/m3 (16) 16.0
 
Jan. 15, 2022, 5 a.m. 7.2 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 17.0 ppb (16) 0.09 ppb (2) N/A 3.5 μg/m3 (15) 16.0
 
Jan. 15, 2022, 4 a.m. 7.4 ppb (7) 0.8 ppb (1) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 17.0 ppb (16) 0.09 ppb (2) N/A 3.5 μg/m3 (15) 16.0
 
Jan. 15, 2022, 3 a.m. 10.1 ppb (10) 1.8 ppb (2) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 17.0 ppb (16) 0.12 ppb (2) N/A 3.5 μg/m3 (15) 16.0
 
Jan. 15, 2022, 2 a.m. 8.4 ppb (8) 1.0 ppb (1) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 18.0 ppb (17) 0.11 ppb (2) N/A 2.9 μg/m3 (13) 17.0
 
Jan. 15, 2022, 1 a.m. 9.2 ppb (9) 1.0 ppb (1) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 17.0 ppb (16) 0.1 ppb (2) N/A 2.6 μg/m3 (11) 16.0
 
Jan. 15, 2022, midnight 20.4 ppb (20) 6.5 ppb (7) N/A 14.0 ppb (14) N/A 1.0 ppb (2) 10.0 ppb (10) 0.16 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 14, 2022, 11 p.m. 14.3 ppb (14) 4.9 ppb (5) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 14.0 ppb (13) 0.14 ppb (2) N/A 3.5 μg/m3 (15) 15.0
 
Jan. 14, 2022, 10 p.m. 9.5 ppb (9) 2.8 ppb (3) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 19.0 ppb (18) 0.08 ppb (2) N/A 2.0 μg/m3 (9) 18.0
 
Jan. 14, 2022, 9 p.m. 5.8 ppb (6) 1.8 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 22.0 ppb (21) 0.08 ppb (2) N/A 1.7 μg/m3 (8) 21.0
 
Jan. 14, 2022, 8 p.m. 5.7 ppb (6) 1.7 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 23.0 ppb (22) 0.08 ppb (2) N/A 1.7 μg/m3 (8) 22.0
 
Jan. 14, 2022, 7 p.m. 9.7 ppb (10) 3.1 ppb (3) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 18.0 ppb (17) 0.08 ppb (2) N/A 1.8 μg/m3 (8) 17.0
 
Jan. 14, 2022, 6 p.m. 14.3 ppb (14) 5.7 ppb (6) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 13.0 ppb (13) 0.1 ppb (2) N/A 1.8 μg/m3 (8) 14.0
 
Jan. 14, 2022, 5 p.m. 13.4 ppb (13) 4.9 ppb (5) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 13.0 ppb (13) 0.11 ppb (2) N/A 2.0 μg/m3 (9) 13.0
 
Jan. 14, 2022, 4 p.m. 17.4 ppb (17) 4.8 ppb (5) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 9.0 ppb (9) 0.16 ppb (3) N/A 2.2 μg/m3 (10) 17.0
 
Jan. 14, 2022, 3 p.m. 13.7 ppb (13) 2.6 ppb (3) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 8.0 ppb (8) 0.12 ppb (2) N/A 2.3 μg/m3 (10) 13.0
 
Jan. 14, 2022, 2 p.m. 15.1 ppb (15) 3.0 ppb (3) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 5.0 ppb (5) 0.12 ppb (2) N/A 2.6 μg/m3 (11) 15.0
 
Jan. 14, 2022, 1 p.m. 12.9 ppb (13) 2.1 ppb (2) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 4.0 ppb (4) 0.13 ppb (2) N/A 3.8 μg/m3 (16) 16.0
 
Jan. 14, 2022, noon 10.2 ppb (10) 0.8 ppb (1) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 7.0 ppb (7) 0.16 ppb (3) N/A 3.0 μg/m3 (13) 13.0
 
Jan. 14, 2022, 11 a.m. 9.0 ppb (9) 1.0 ppb (1) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 7.0 ppb (7) 0.09 ppb (2) N/A 3.1 μg/m3 (13) 13.0
 
Jan. 14, 2022, 10 a.m. 9.2 ppb (9) 1.2 ppb (2) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 9.0 ppb (9) 0.09 ppb (2) N/A 3.1 μg/m3 (13) 13.0