ID: 1236

AQSQID: 410510080

Site Name: Portland - Se Lafayette

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

Updated: Jan. 18, 2021, 9:31 a.m.

Location: Portland (Foster-Powell), OR

Reporting: True, Located: True

Current AQI: 89.0

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. 18, 2021, 8 a.m. 59.2 ppb (57) 48.9 ppb (47) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 1.0 ppb (1) 0.89 ppb (11) N/A 29.9 μg/m3 (89) 89.0
 
Jan. 18, 2021, 7 a.m. 79.4 ppb (79) 69.0 ppb (67) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 2.0 ppb (2) 1.19 ppb (14) N/A 43.7 μg/m3 (122) 122.0
 
Jan. 18, 2021, 6 a.m. 83.2 ppb (83) 70.6 ppb (69) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 1.0 ppb (1) 1.28 ppb (15) N/A 48.8 μg/m3 (134) 134.0
 
Jan. 18, 2021, 5 a.m. 84.1 ppb (84) 71.2 ppb (70) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 2.0 ppb (2) 1.42 ppb (16) N/A 55.4 μg/m3 (150) 150.0
 
Jan. 18, 2021, 4 a.m. 77.6 ppb (77) 63.4 ppb (62) N/A 14.0 ppb (14) N/A 1.0 ppb (2) 2.0 ppb (2) 1.27 ppb (15) N/A 49.5 μg/m3 (136) 136.0
 
Jan. 18, 2021, 3 a.m. 73.1 ppb (72) 57.5 ppb (55) N/A 16.0 ppb (16) N/A 1.0 ppb (2) 2.0 ppb (2) 1.14 ppb (13) N/A 41.7 μg/m3 (117) 117.0
 
Jan. 18, 2021, 2 a.m. 63.8 ppb (62) 48.6 ppb (46) N/A 15.0 ppb (15) N/A 1.0 ppb (2) 2.0 ppb (2) 0.95 ppb (11) N/A 31.5 μg/m3 (92) 92.0
 
Jan. 18, 2021, 1 a.m. 32.0 ppb (31) 15.5 ppb (15) N/A 16.0 ppb (16) N/A 0.0 ppb (0) 2.0 ppb (2) 0.5 ppb (6) N/A 17.7 μg/m3 (63) 63.0
 
Jan. 18, 2021, midnight 12.0 ppb (12) 1.9 ppb (2) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 12.0 ppb (12) 0.24 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 17, 2021, 11 p.m. 11.5 ppb (11) 3.1 ppb (3) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 15.0 ppb (14) 0.23 ppb (3) N/A 10.1 μg/m3 (43) 43.0
 
Jan. 17, 2021, 10 p.m. 10.3 ppb (10) 3.1 ppb (3) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 14.0 ppb (13) 0.2 ppb (3) N/A 9.9 μg/m3 (42) 42.0
 
Jan. 17, 2021, 9 p.m. 10.1 ppb (10) 2.9 ppb (3) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 11.0 ppb (11) 0.19 ppb (3) N/A 10.8 μg/m3 (46) 46.0
 
Jan. 17, 2021, 8 p.m. 10.0 ppb (10) 2.7 ppb (3) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 10.0 ppb (10) 0.18 ppb (3) N/A 10.2 μg/m3 (43) 43.0
 
Jan. 17, 2021, 7 p.m. 10.3 ppb (10) 3.6 ppb (4) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 8.0 ppb (8) 0.18 ppb (3) N/A 10.8 μg/m3 (46) 46.0
 
Jan. 17, 2021, 6 p.m. 9.1 ppb (9) 3.5 ppb (4) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 7.0 ppb (7) 0.19 ppb (3) N/A 11.8 μg/m3 (50) 50.0
 
Jan. 17, 2021, 5 p.m. 12.2 ppb (12) 5.9 ppb (6) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 4.0 ppb (4) 0.23 ppb (3) N/A 13.6 μg/m3 (55) 55.0
 
Jan. 17, 2021, 4 p.m. 11.5 ppb (11) 4.9 ppb (5) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 2.0 ppb (2) 0.25 ppb (3) N/A 11.8 μg/m3 (50) 50.0
 
Jan. 17, 2021, 3 p.m. 12.3 ppb (12) 4.8 ppb (5) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 2.0 ppb (2) 0.21 ppb (3) N/A 10.6 μg/m3 (45) 45.0
 
Jan. 17, 2021, 2 p.m. 8.5 ppb (9) 2.9 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 2.0 ppb (2) 0.21 ppb (3) N/A 8.9 μg/m3 (38) 38.0
 
Jan. 17, 2021, 1 p.m. 4.9 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 4.0 ppb (4) 0.2 ppb (3) N/A 8.2 μg/m3 (35) 35.0
 
Jan. 17, 2021, noon 5.5 ppb (6) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 4.0 ppb (4) 0.19 ppb (3) N/A 9.7 μg/m3 (41) 41.0
 
Jan. 17, 2021, 11 a.m. 6.1 ppb (6) 1.3 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 4.0 ppb (4) 0.21 ppb (3) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 17, 2021, 10 a.m. 4.6 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 5.0 ppb (5) 0.2 ppb (3) N/A 13.6 μg/m3 (55) 55.0
 
Jan. 17, 2021, 9 a.m. 5.9 ppb (6) 0.6 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 7.0 ppb (7) 0.19 ppb (3) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 17, 2021, 8 a.m. 7.0 ppb (7) 0.8 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 8.0 ppb (8) 0.21 ppb (3) N/A 18.0 μg/m3 (64) 64.0
 
Jan. 17, 2021, 7 a.m. 9.8 ppb (10) 1.5 ppb (2) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 6.0 ppb (6) 0.25 ppb (3) N/A 17.9 μg/m3 (64) 64.0
 
Jan. 17, 2021, 6 a.m. 12.8 ppb (13) 2.6 ppb (3) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 3.0 ppb (3) 0.28 ppb (4) N/A 17.5 μg/m3 (63) 63.0
 
Jan. 17, 2021, 5 a.m. 21.0 ppb (20) 8.6 ppb (9) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 1.0 ppb (1) 0.43 ppb (5) N/A 22.9 μg/m3 (74) 74.0
 
Jan. 17, 2021, 4 a.m. 17.3 ppb (17) 5.3 ppb (5) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 3.0 ppb (3) 0.4 ppb (5) N/A 20.1 μg/m3 (68) 68.0
 
Jan. 17, 2021, 3 a.m. 16.5 ppb (16) 4.7 ppb (5) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 2.0 ppb (2) 0.36 ppb (5) N/A 19.4 μg/m3 (67) 67.0
 
Jan. 17, 2021, 2 a.m. 14.3 ppb (14) 3.0 ppb (3) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 3.0 ppb (3) 0.31 ppb (4) N/A 13.9 μg/m3 (55) 55.0
 
Jan. 17, 2021, 1 a.m. 13.3 ppb (13) 2.7 ppb (3) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 4.0 ppb (4) 0.26 ppb (4) N/A 9.5 μg/m3 (40) 40.0
 
Jan. 17, 2021, midnight 11.1 ppb (11) 2.4 ppb (3) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 6.0 ppb (6) 0.24 ppb (3) N/A 8.6 μg/m3 (36) 36.0
 
Jan. 16, 2021, 11 p.m. 15.7 ppb (15) 3.7 ppb (4) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 10.0 ppb (10) 0.24 ppb (3) N/A 6.8 μg/m3 (29) 29.0
 
Jan. 16, 2021, 10 p.m. 10.2 ppb (10) 3.0 ppb (3) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 16.0 ppb (15) 0.22 ppb (3) N/A 6.8 μg/m3 (29) 29.0
 
Jan. 16, 2021, 9 p.m. 8.9 ppb (9) 3.5 ppb (4) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 17.0 ppb (16) 0.18 ppb (3) N/A 4.6 μg/m3 (20) 20.0
 
Jan. 16, 2021, 8 p.m. 8.5 ppb (9) 4.1 ppb (4) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 17.0 ppb (16) 0.17 ppb (3) N/A 3.9 μg/m3 (17) 17.0
 
Jan. 16, 2021, 7 p.m. 6.5 ppb (7) 3.2 ppb (4) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 17.0 ppb (16) 0.15 ppb (2) N/A 3.1 μg/m3 (13) 16.0
 
Jan. 16, 2021, 6 p.m. 7.3 ppb (7) 3.3 ppb (4) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 15.0 ppb (14) 0.16 ppb (3) N/A 3.4 μg/m3 (15) 15.0
 
Jan. 16, 2021, 5 p.m. 9.5 ppb (9) 3.4 ppb (4) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 12.0 ppb (12) 0.17 ppb (3) N/A 4.3 μg/m3 (18) 18.0
 
Jan. 16, 2021, 4 p.m. 9.5 ppb (9) 2.6 ppb (3) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 10.0 ppb (10) 0.17 ppb (3) N/A 4.2 μg/m3 (18) 18.0
 
Jan. 16, 2021, 3 p.m. 8.4 ppb (8) 1.7 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 11.0 ppb (11) 0.17 ppb (3) N/A 4.2 μg/m3 (18) 18.0
 
Jan. 16, 2021, 2 p.m. 6.8 ppb (7) 0.8 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 10.0 ppb (10) 0.15 ppb (2) N/A 4.5 μg/m3 (19) 19.0
 
Jan. 16, 2021, 1 p.m. 5.2 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 12.0 ppb (12) 0.14 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 16, 2021, noon 4.5 ppb (5) 0.4 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 13.0 ppb (13) 0.13 ppb (2) N/A 4.2 μg/m3 (18) 18.0
 
Jan. 16, 2021, 11 a.m. 5.0 ppb (5) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 14.0 ppb (13) 0.13 ppb (2) N/A 4.5 μg/m3 (19) 19.0
 
Jan. 16, 2021, 10 a.m. 4.8 ppb (5) 0.4 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 14.0 ppb (13) 0.14 ppb (2) N/A 5.8 μg/m3 (25) 25.0
 
Jan. 16, 2021, 9 a.m. 14.0 ppb (14) 1.4 ppb (2) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 7.0 ppb (7) 0.22 ppb (3) N/A 8.8 μg/m3 (37) 37.0
 
Jan. 16, 2021, 8 a.m. 22.3 ppb (22) 3.1 ppb (3) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 3.0 ppb (3) 0.31 ppb (4) N/A 11.8 μg/m3 (50) 50.0
 
Jan. 16, 2021, 7 a.m. 16.0 ppb (16) 1.6 ppb (2) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 9.0 ppb (9) 0.29 ppb (4) N/A 11.8 μg/m3 (50) 50.0
 
Jan. 16, 2021, 6 a.m. 21.8 ppb (21) 3.8 ppb (4) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 6.0 ppb (6) 0.33 ppb (4) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 16, 2021, 5 a.m. 20.8 ppb (20) 5.8 ppb (6) N/A 15.0 ppb (15) N/A 0.0 ppb (0) 7.0 ppb (7) 0.33 ppb (4) N/A 14.0 μg/m3 (55) 55.0
 
Jan. 16, 2021, 4 a.m. 45.8 ppb (44) 28.2 ppb (27) N/A 18.0 ppb (17) N/A 1.0 ppb (2) 2.0 ppb (2) 0.71 ppb (8) N/A 30.6 μg/m3 (90) 90.0
 
Jan. 16, 2021, 3 a.m. 64.7 ppb (63) 47.9 ppb (46) N/A 17.0 ppb (17) N/A 1.0 ppb (2) 2.0 ppb (2) 0.86 ppb (11) N/A 26.5 μg/m3 (82) 82.0
 
Jan. 16, 2021, 2 a.m. 48.2 ppb (46) 29.2 ppb (28) N/A 19.0 ppb (18) N/A 1.0 ppb (2) 1.0 ppb (1) 0.65 ppb (8) N/A 16.6 μg/m3 (61) 61.0
 
Jan. 16, 2021, 1 a.m. 24.3 ppb (23) 3.7 ppb (4) N/A 21.0 ppb (20) N/A 0.0 ppb (0) 3.0 ppb (3) 0.31 ppb (4) N/A 11.7 μg/m3 (49) 49.0
 
Jan. 16, 2021, midnight 23.0 ppb (22) 3.8 ppb (4) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 5.0 ppb (5) 0.26 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 15, 2021, 11 p.m. 19.9 ppb (19) 3.8 ppb (4) N/A 16.0 ppb (16) N/A 0.0 ppb (0) 7.0 ppb (7) 0.21 ppb (3) N/A 9.3 μg/m3 (39) 39.0
 
Jan. 15, 2021, 10 p.m. 22.5 ppb (22) 7.2 ppb (7) N/A 15.0 ppb (15) N/A 0.0 ppb (0) 8.0 ppb (8) 0.23 ppb (3) N/A 9.2 μg/m3 (39) 39.0
 
Jan. 15, 2021, 9 p.m. 35.6 ppb (34) 18.8 ppb (18) N/A 17.0 ppb (17) N/A 1.0 ppb (2) 4.0 ppb (4) 0.31 ppb (4) N/A 13.3 μg/m3 (54) 54.0
 
Jan. 15, 2021, 8 p.m. 43.2 ppb (41) 24.9 ppb (24) N/A 18.0 ppb (17) N/A 1.0 ppb (2) 4.0 ppb (4) 0.32 ppb (4) N/A 11.2 μg/m3 (47) 47.0
 
Jan. 15, 2021, 7 p.m. 53.8 ppb (51) 31.7 ppb (30) N/A 22.0 ppb (21) N/A 1.0 ppb (2) 3.0 ppb (3) 0.36 ppb (5) N/A 11.9 μg/m3 (50) 51.0
 
Jan. 15, 2021, 6 p.m. 48.9 ppb (47) 27.0 ppb (26) N/A 22.0 ppb (21) N/A 1.0 ppb (2) 3.0 ppb (3) 0.37 ppb (5) N/A 7.9 μg/m3 (33) 47.0
 
Jan. 15, 2021, 5 p.m. 37.8 ppb (36) 16.3 ppb (16) N/A 21.0 ppb (20) N/A 0.0 ppb (0) 2.0 ppb (2) 0.38 ppb (5) N/A 7.3 μg/m3 (31) 36.0
 
Jan. 15, 2021, 4 p.m. 29.4 ppb (28) 7.7 ppb (8) N/A 22.0 ppb (21) N/A 0.0 ppb (0) 2.0 ppb (2) 0.27 ppb (4) N/A 6.1 μg/m3 (26) 28.0
 
Jan. 15, 2021, 3 p.m. 19.7 ppb (19) 1.9 ppb (2) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 6.0 ppb (6) 0.2 ppb (3) N/A 5.2 μg/m3 (22) 22.0
 
Jan. 15, 2021, 2 p.m. 12.7 ppb (12) 1.1 ppb (2) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 12.0 ppb (12) 0.16 ppb (3) N/A 3.6 μg/m3 (16) 16.0
 
Jan. 15, 2021, 1 p.m. 10.9 ppb (11) 1.0 ppb (1) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 11.0 ppb (11) 0.13 ppb (2) N/A 3.5 μg/m3 (15) 15.0
 
Jan. 15, 2021, noon 6.4 ppb (7) 0.5 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 13.0 ppb (13) 0.13 ppb (2) N/A 3.7 μg/m3 (16) 16.0
 
Jan. 15, 2021, 11 a.m. 5.5 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 16.0 ppb (15) 0.12 ppb (2) N/A 3.8 μg/m3 (16) 16.0
 
Jan. 15, 2021, 10 a.m. 5.6 ppb (6) 1.1 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 19.0 ppb (18) 0.12 ppb (2) N/A 3.5 μg/m3 (15) 18.0
 
Jan. 15, 2021, 9 a.m. 5.8 ppb (6) 0.5 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 20.0 ppb (19) 0.13 ppb (2) N/A 3.7 μg/m3 (16) 19.0
 
Jan. 15, 2021, 8 a.m. 10.3 ppb (10) 1.5 ppb (2) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 17.0 ppb (16) 0.16 ppb (3) N/A 4.2 μg/m3 (18) 18.0
 
Jan. 15, 2021, 7 a.m. 25.8 ppb (25) 5.6 ppb (6) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 5.0 ppb (5) 0.34 ppb (4) N/A 9.1 μg/m3 (38) 38.0
 
Jan. 15, 2021, 6 a.m. 26.4 ppb (25) 9.9 ppb (10) N/A 16.0 ppb (16) N/A 1.0 ppb (2) 8.0 ppb (8) 0.41 ppb (5) N/A 11.8 μg/m3 (50) 50.0
 
Jan. 15, 2021, 5 a.m. 26.7 ppb (26) 10.6 ppb (10) N/A 16.0 ppb (16) N/A 0.0 ppb (0) 9.0 ppb (9) 0.44 ppb (5) N/A 12.5 μg/m3 (52) 52.0
 
Jan. 15, 2021, 4 a.m. 23.3 ppb (22) 4.8 ppb (5) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 7.0 ppb (7) 0.39 ppb (5) N/A 14.3 μg/m3 (56) 56.0
 
Jan. 15, 2021, 3 a.m. 33.4 ppb (32) 11.8 ppb (12) N/A 22.0 ppb (21) N/A 0.0 ppb (0) 2.0 ppb (2) 0.5 ppb (6) N/A 18.8 μg/m3 (66) 66.0
 
Jan. 15, 2021, 2 a.m. 28.3 ppb (27) 6.8 ppb (7) N/A 22.0 ppb (21) N/A 0.0 ppb (0) 3.0 ppb (3) 0.41 ppb (5) N/A 11.3 μg/m3 (48) 48.0
 
Jan. 15, 2021, 1 a.m. 16.4 ppb (16) 1.5 ppb (2) N/A 15.0 ppb (15) N/A 0.0 ppb (0) 14.0 ppb (13) 0.29 ppb (4) N/A 5.5 μg/m3 (23) 23.0
 
Jan. 15, 2021, midnight 7.1 ppb (7) 0.9 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 27.0 ppb (25) 0.18 ppb (3) N/A 3.3 μg/m3 (14) 25.0
 
Jan. 14, 2021, 11 p.m. 6.1 ppb (6) 1.1 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 29.0 ppb (27) 0.16 ppb (3) N/A 3.0 μg/m3 (13) 27.0
 
Jan. 14, 2021, 10 p.m. 5.6 ppb (6) 1.5 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 29.0 ppb (27) 0.16 ppb (3) N/A 2.9 μg/m3 (13) 27.0
 
Jan. 14, 2021, 9 p.m. 5.1 ppb (5) 1.6 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (28) 0.16 ppb (3) N/A 2.8 μg/m3 (12) 28.0
 
Jan. 14, 2021, 8 p.m. 6.7 ppb (7) 2.4 ppb (3) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 29.0 ppb (27) 0.16 ppb (3) N/A 3.0 μg/m3 (13) 27.0
 
Jan. 14, 2021, 7 p.m. 5.1 ppb (5) 1.8 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (27) 0.14 ppb (2) N/A 2.9 μg/m3 (13) 27.0
 
Jan. 14, 2021, 6 p.m. 5.7 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 27.0 ppb (25) 0.15 ppb (2) N/A 2.9 μg/m3 (13) 25.0
 
Jan. 14, 2021, 5 p.m. 7.3 ppb (7) 2.2 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 26.0 ppb (25) 0.15 ppb (2) N/A 3.1 μg/m3 (13) 25.0
 
Jan. 14, 2021, 4 p.m. 7.3 ppb (7) 1.7 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 24.0 ppb (23) 0.16 ppb (3) N/A 3.2 μg/m3 (14) 23.0
 
Jan. 14, 2021, 3 p.m. 26.0 ppb (25) 9.5 ppb (9) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 10.0 ppb (10) 0.27 ppb (4) N/A 7.1 μg/m3 (30) 30.0
 
Jan. 14, 2021, 2 p.m. 12.9 ppb (13) 2.5 ppb (3) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 16.0 ppb (15) 0.2 ppb (3) N/A 4.3 μg/m3 (18) 18.0
 
Jan. 14, 2021, 1 p.m. 3.9 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (25) 0.14 ppb (2) N/A 3.0 μg/m3 (13) 25.0
 
Jan. 14, 2021, noon 16.7 ppb (16) 2.3 ppb (3) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 8.0 ppb (8) 0.24 ppb (3) N/A 6.9 μg/m3 (29) 29.0
 
Jan. 14, 2021, 11 a.m. 14.5 ppb (14) 1.3 ppb (2) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 11.0 ppb (11) 0.19 ppb (3) N/A 5.8 μg/m3 (25) 25.0
 
Jan. 14, 2021, 10 a.m. 11.6 ppb (11) 1.4 ppb (2) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 14.0 ppb (13) 0.22 ppb (3) N/A 6.8 μg/m3 (29) 29.0
 
Jan. 14, 2021, 9 a.m. 9.1 ppb (9) 1.1 ppb (2) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 17.0 ppb (16) 0.18 ppb (3) N/A 4.3 μg/m3 (18) 18.0
 
Jan. 14, 2021, 8 a.m. 18.1 ppb (18) 4.5 ppb (5) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 10.0 ppb (10) 0.24 ppb (3) N/A 6.3 μg/m3 (27) 27.0
 
Jan. 14, 2021, 7 a.m. 20.9 ppb (20) 5.6 ppb (6) N/A 15.0 ppb (15) N/A 0.0 ppb (0) 10.0 ppb (10) 0.29 ppb (4) N/A 7.5 μg/m3 (32) 32.0
 
Jan. 14, 2021, 6 a.m. 11.5 ppb (11) 1.0 ppb (1) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 13.0 ppb (13) 0.2 ppb (3) N/A 6.1 μg/m3 (26) 26.0
 
Jan. 14, 2021, 5 a.m. 13.4 ppb (13) 1.1 ppb (2) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 14.0 ppb (13) 0.24 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Jan. 14, 2021, 4 a.m. 16.8 ppb (16) 1.8 ppb (2) N/A 15.0 ppb (15) N/A 0.0 ppb (0) 10.0 ppb (10) 0.34 ppb (4) N/A 11.4 μg/m3 (48) 48.0
 
Jan. 14, 2021, 3 a.m. 42.9 ppb (41) 16.1 ppb (16) N/A 27.0 ppb (26) N/A 1.0 ppb (2) 4.0 ppb (4) 0.62 ppb (7) N/A 16.9 μg/m3 (62) 62.0
 
Jan. 14, 2021, 2 a.m. 65.9 ppb (64) 34.8 ppb (33) N/A 31.0 ppb (30) N/A 1.0 ppb (2) 2.0 ppb (2) 0.83 ppb (10) N/A 16.9 μg/m3 (62) 64.0
 
Jan. 14, 2021, 1 a.m. 35.6 ppb (34) 8.6 ppb (9) N/A 27.0 ppb (26) N/A 0.0 ppb (0) 4.0 ppb (4) 0.54 ppb (6) N/A 10.2 μg/m3 (43) 43.0
 
Jan. 14, 2021, midnight 25.4 ppb (24) 4.6 ppb (5) N/A 21.0 ppb (20) N/A 0.0 ppb (0) 14.0 ppb (13) 0.43 ppb (5) N/A 8.7 μg/m3 (37) 37.0
 
Jan. 13, 2021, 11 p.m. 6.8 ppb (7) 0.8 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 34.0 ppb (32) 0.17 ppb (3) N/A 3.9 μg/m3 (17) 32.0
 
Jan. 13, 2021, 10 p.m. 3.7 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 36.0 ppb (34) 0.14 ppb (2) N/A 3.8 μg/m3 (16) 34.0
 
Jan. 13, 2021, 9 p.m. 2.2 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (36) 0.12 ppb (2) N/A 3.6 μg/m3 (16) 36.0
 
Jan. 13, 2021, 8 p.m. 4.1 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 36.0 ppb (34) 0.13 ppb (2) N/A 3.7 μg/m3 (16) 34.0
 
Jan. 13, 2021, 7 p.m. 5.9 ppb (6) 1.7 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 32.0 ppb (30) 0.13 ppb (2) N/A 3.9 μg/m3 (17) 30.0
 
Jan. 13, 2021, 6 p.m. 6.1 ppb (6) 1.5 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 31.0 ppb (29) 0.15 ppb (2) N/A 3.6 μg/m3 (16) 29.0
 
Jan. 13, 2021, 5 p.m. 7.8 ppb (8) 1.4 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 30.0 ppb (28) 0.15 ppb (2) N/A 3.6 μg/m3 (16) 28.0
 
Jan. 13, 2021, 4 p.m. 6.9 ppb (7) 0.7 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 30.0 ppb (28) 0.15 ppb (2) N/A 3.7 μg/m3 (16) 28.0
 
Jan. 13, 2021, 3 p.m. 5.5 ppb (6) 0.4 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 32.0 ppb (30) 0.14 ppb (2) N/A 3.5 μg/m3 (15) 30.0
 
Jan. 13, 2021, 2 p.m. 4.4 ppb (5) 0.3 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 33.0 ppb (31) 0.13 ppb (2) N/A 2.9 μg/m3 (13) 31.0
 
Jan. 13, 2021, 1 p.m. 4.0 ppb (4) 0.4 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 33.0 ppb (31) 0.13 ppb (2) N/A 2.5 μg/m3 (11) 31.0
 
Jan. 13, 2021, noon 2.0 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (33) 0.11 ppb (2) N/A 2.0 μg/m3 (9) 33.0
 
Jan. 13, 2021, 11 a.m. 1.8 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (34) 0.1 ppb (2) N/A 1.5 μg/m3 (7) 34.0
 
Jan. 13, 2021, 10 a.m. 1.5 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (37) 0.1 ppb (2) N/A 1.4 μg/m3 (6) 37.0
 
Jan. 13, 2021, 9 a.m. 0.9 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (38) 0.08 ppb (2) N/A 1.3 μg/m3 (6) 38.0
 
Jan. 13, 2021, 8 a.m. 1.0 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (33) 0.02 ppb (0) N/A 1.3 μg/m3 (6) 33.0
 
Jan. 13, 2021, 7 a.m. 0.9 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (25) N/A N/A 1.4 μg/m3 (6) 25.0
 
Jan. 13, 2021, 6 a.m. 0.8 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 28.0 ppb (26) 0.01 ppb (0) N/A 1.5 μg/m3 (7) 26.0
 
Jan. 13, 2021, 5 a.m. 0.9 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (25) 0.02 ppb (0) N/A 1.6 μg/m3 (7) 25.0
 
Jan. 13, 2021, 4 a.m. 1.1 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (25) 0.03 ppb (0) N/A 1.7 μg/m3 (8) 25.0
 
Jan. 13, 2021, 3 a.m. 1.2 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (25) 0.03 ppb (0) N/A 2.0 μg/m3 (9) 25.0
 
Jan. 13, 2021, 2 a.m. 1.5 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (25) 0.04 ppb (0) N/A 1.9 μg/m3 (8) 25.0
 
Jan. 13, 2021, 1 a.m. 2.2 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (25) 0.04 ppb (0) N/A 1.7 μg/m3 (8) 25.0
 
Jan. 13, 2021, midnight 2.6 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 27.0 ppb (25) 0.05 ppb (2) N/A 1.7 μg/m3 (8) 25.0
 
Jan. 12, 2021, 11 p.m. 2.8 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 27.0 ppb (25) 0.05 ppb (2) N/A 1.8 μg/m3 (8) 25.0
 
Jan. 12, 2021, 10 p.m. 3.1 ppb (3) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (25) 0.05 ppb (2) N/A 1.8 μg/m3 (8) 25.0
 
Jan. 12, 2021, 9 p.m. 3.1 ppb (3) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (25) 0.06 ppb (2) N/A 1.9 μg/m3 (8) 25.0
 
Jan. 12, 2021, 8 p.m. 3.2 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (25) 0.06 ppb (2) N/A 1.8 μg/m3 (8) 25.0
 
Jan. 12, 2021, 7 p.m. 2.8 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 28.0 ppb (26) 0.06 ppb (2) N/A 1.9 μg/m3 (8) 26.0
 
Jan. 12, 2021, 6 p.m. 2.6 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 28.0 ppb (26) 0.06 ppb (2) N/A 1.7 μg/m3 (8) 26.0
 
Jan. 12, 2021, 5 p.m. 2.2 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (27) 0.06 ppb (2) N/A 1.6 μg/m3 (7) 27.0
 
Jan. 12, 2021, 4 p.m. 1.8 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (28) 0.06 ppb (2) N/A 1.6 μg/m3 (7) 28.0
 
Jan. 12, 2021, 3 p.m. 1.4 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (28) 0.06 ppb (2) N/A 1.5 μg/m3 (7) 28.0
 
Jan. 12, 2021, 2 p.m. 1.1 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (28) 0.06 ppb (2) N/A 1.5 μg/m3 (7) 28.0
 
Jan. 12, 2021, 1 p.m. 0.9 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 31.0 ppb (29) 0.06 ppb (2) N/A 1.5 μg/m3 (7) 29.0
 
Jan. 12, 2021, noon 0.8 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (30) 0.06 ppb (2) N/A 1.5 μg/m3 (7) 30.0
 
Jan. 12, 2021, 11 a.m. 1.0 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (30) 0.07 ppb (2) N/A 1.5 μg/m3 (7) 30.0
 
Jan. 12, 2021, 10 a.m. 1.2 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (30) 0.07 ppb (2) N/A 1.7 μg/m3 (8) 30.0
 
Jan. 12, 2021, 9 a.m. 5.7 ppb (6) 0.7 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 23.0 ppb (22) 0.13 ppb (2) N/A 3.1 μg/m3 (13) 22.0
 
Jan. 12, 2021, 8 a.m. 6.9 ppb (7) 0.7 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 17.0 ppb (16) 0.16 ppb (3) N/A 3.7 μg/m3 (16) 16.0
 
Jan. 12, 2021, 7 a.m. 7.7 ppb (8) 1.3 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 16.0 ppb (15) 0.15 ppb (2) N/A 4.2 μg/m3 (18) 18.0
 
Jan. 12, 2021, 6 a.m. 6.1 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 17.0 ppb (16) 0.15 ppb (2) N/A 4.3 μg/m3 (18) 18.0
 
Jan. 12, 2021, 5 a.m. 6.9 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 17.0 ppb (16) 0.16 ppb (3) N/A 4.6 μg/m3 (20) 20.0
 
Jan. 12, 2021, 4 a.m. 9.0 ppb (9) 1.3 ppb (2) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 15.0 ppb (14) 0.2 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 12, 2021, 3 a.m. 14.4 ppb (14) 2.1 ppb (2) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 12.0 ppb (12) 0.26 ppb (4) N/A 7.7 μg/m3 (33) 33.0
 
Jan. 12, 2021, 2 a.m. 22.7 ppb (22) 6.0 ppb (6) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 3.0 ppb (3) 0.34 ppb (4) N/A 9.7 μg/m3 (41) 41.0
 
Jan. 12, 2021, 1 a.m. 11.0 ppb (11) 1.6 ppb (2) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 10.0 ppb (10) 0.23 ppb (3) N/A 6.7 μg/m3 (28) 28.0
 
Jan. 12, 2021, midnight 10.5 ppb (10) 2.3 ppb (3) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 11.0 ppb (11) 0.2 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 11, 2021, 11 p.m. 12.5 ppb (12) 3.1 ppb (3) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 11.0 ppb (11) 0.2 ppb (3) N/A 5.2 μg/m3 (22) 22.0
 
Jan. 11, 2021, 10 p.m. 10.7 ppb (11) 2.8 ppb (3) N/A 8.0 ppb (8) N/A N/A 11.0 ppb (11) 0.18 ppb (3) N/A 4.6 μg/m3 (20) 20.0
 
Jan. 11, 2021, 9 p.m. 12.9 ppb (13) 3.7 ppb (4) N/A 9.0 ppb (9) N/A N/A 10.0 ppb (10) 0.22 ppb (3) N/A 4.6 μg/m3 (20) 20.0
 
Jan. 11, 2021, 8 p.m. 11.5 ppb (11) 3.6 ppb (4) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 11.0 ppb (11) 0.2 ppb (3) N/A 4.6 μg/m3 (20) 20.0
 
Jan. 11, 2021, 7 p.m. 20.2 ppb (20) 8.6 ppb (9) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 6.0 ppb (6) N/A N/A 5.2 μg/m3 (22) 22.0
 
Jan. 11, 2021, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 5.0 ppb (5) 0.23 ppb (3) N/A 6.8 μg/m3 (29) 29.0
 
Jan. 11, 2021, 5 p.m. 25.0 ppb (24) 10.7 ppb (11) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 3.0 ppb (3) 0.23 ppb (3) N/A 4.8 μg/m3 (20) 24.0
 
Jan. 11, 2021, 4 p.m. 31.9 ppb (31) 16.7 ppb (16) N/A 15.0 ppb (15) N/A 1.0 ppb (2) 2.0 ppb (2) 0.32 ppb (4) N/A 5.2 μg/m3 (22) 31.0
 
Jan. 11, 2021, 3 p.m. 42.2 ppb (40) 26.2 ppb (25) N/A 16.0 ppb (16) N/A 1.0 ppb (2) 1.0 ppb (1) 0.42 ppb (5) N/A 9.1 μg/m3 (38) 40.0
 
Jan. 11, 2021, 2 p.m. 25.5 ppb (25) 12.0 ppb (12) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 4.0 ppb (4) 0.3 ppb (4) N/A 6.7 μg/m3 (28) 28.0
 
Jan. 11, 2021, 1 p.m. 24.6 ppb (24) 10.6 ppb (10) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 2.0 ppb (2) 0.33 ppb (4) N/A 8.7 μg/m3 (37) 37.0
 
Jan. 11, 2021, noon 11.8 ppb (12) 3.0 ppb (3) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 9.0 ppb (9) 0.2 ppb (3) N/A 5.8 μg/m3 (25) 25.0
 
Jan. 11, 2021, 11 a.m. 12.1 ppb (12) 2.8 ppb (3) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 5.0 ppb (5) 0.2 ppb (3) N/A 5.3 μg/m3 (23) 23.0
 
Jan. 11, 2021, 10 a.m. 9.5 ppb (9) 2.5 ppb (3) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 8.0 ppb (8) 0.17 ppb (3) N/A 4.2 μg/m3 (18) 18.0
 
Jan. 11, 2021, 9 a.m. 4.7 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 14.0 ppb (13) 0.14 ppb (2) N/A 3.8 μg/m3 (16) 16.0