AQSQID: 410510080

Site Name: Portland - Se Lafayette

Location: Portland, OR

Reporting: True, Located: True

Current AQI: 31.0

Portland OR, US: 45.496641, -122.602877

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 20, 2019, 1 p.m. 13.5 ppb (12) 2.2 ppb (2) N/A 11.0 ppb (10) N/A N/A 3.0 ppb (2) 0.2 ppb (2) N/A 7.4 μg/m3 (31) 31.0
 
Jan. 20, 2019, noon 11.2 ppb (10) 2.1 ppb (2) N/A 9.0 ppb (8) N/A N/A 5.0 ppb (4) 0.2 ppb (2) N/A 8.8 μg/m3 (37) 37.0
 
Jan. 20, 2019, 11 a.m. 12.9 ppb (12) 2.1 ppb (2) N/A 11.0 ppb (10) N/A N/A 4.0 ppb (3) 0.2 ppb (2) N/A 10.6 μg/m3 (44) 44.0
 
Jan. 20, 2019, 10 a.m. 21.8 ppb (20) 6.2 ppb (6) N/A 16.0 ppb (15) N/A N/A 2.0 ppb (2) 0.3 ppb (3) N/A 12.1 μg/m3 (50) 50.0
 
Jan. 20, 2019, 9 a.m. 30.1 ppb (28) 11.9 ppb (11) N/A 18.0 ppb (17) N/A N/A 1.0 ppb (1) 0.3 ppb (3) N/A 11.5 μg/m3 (48) 48.0
 
Jan. 20, 2019, 8 a.m. 25.1 ppb (23) 7.0 ppb (6) N/A 18.0 ppb (17) N/A N/A 1.0 ppb (1) 0.3 ppb (3) N/A 10.5 μg/m3 (44) 44.0
 
Jan. 20, 2019, 7 a.m. 31.2 ppb (29) 11.5 ppb (11) N/A 20.0 ppb (19) N/A N/A 1.0 ppb (1) 0.3 ppb (3) N/A 10.1 μg/m3 (42) 42.0
 
Jan. 20, 2019, 6 a.m. 43.4 ppb (40) 20.6 ppb (19) N/A 23.0 ppb (21) N/A N/A 1.0 ppb (1) 0.4 ppb (4) N/A 14.6 μg/m3 (56) 56.0
 
Jan. 20, 2019, 5 a.m. 57.9 ppb (54) 34.8 ppb (32) N/A 23.0 ppb (21) N/A N/A 1.0 ppb (1) 0.5 ppb (6) N/A 18.7 μg/m3 (64) 64.0
 
Jan. 20, 2019, 4 a.m. 76.0 ppb (73) 51.5 ppb (48) N/A 25.0 ppb (23) N/A N/A 1.0 ppb (1) 0.7 ppb (8) N/A 22.1 μg/m3 (71) 73.0
 
Jan. 20, 2019, 3 a.m. 88.9 ppb (87) 64.7 ppb (61) N/A 24.0 ppb (22) N/A N/A 1.0 ppb (1) 0.9 ppb (10) N/A 27.5 μg/m3 (83) 87.0
 
Jan. 20, 2019, 2 a.m. 93.3 ppb (92) 69.4 ppb (66) N/A 24.0 ppb (22) N/A N/A 1.0 ppb (1) 1.1 ppb (12) N/A 26.1 μg/m3 (80) 92.0
 
Jan. 20, 2019, 1 a.m. 75.5 ppb (73) 51.3 ppb (48) N/A 24.0 ppb (22) N/A N/A 1.0 ppb (1) 0.9 ppb (10) N/A 19.4 μg/m3 (66) 73.0
 
Jan. 20, 2019, midnight 38.3 ppb (35) 15.9 ppb (15) N/A 22.0 ppb (20) N/A N/A 6.0 ppb (5) 0.5 ppb (6) N/A 10.8 μg/m3 (45) 45.0
 
Jan. 19, 2019, 11 p.m. 13.0 ppb (12) 2.5 ppb (2) N/A 10.0 ppb (9) N/A N/A 21.0 ppb (16) 0.2 ppb (2) N/A 7.2 μg/m3 (30) 30.0
 
Jan. 19, 2019, 10 p.m. 14.9 ppb (14) 3.3 ppb (3) N/A 12.0 ppb (11) N/A N/A 20.0 ppb (15) 0.2 ppb (2) N/A 7.2 μg/m3 (30) 30.0
 
Jan. 19, 2019, 9 p.m. 15.9 ppb (15) 3.7 ppb (3) N/A 12.0 ppb (11) N/A N/A 19.0 ppb (15) 0.2 ppb (2) N/A 7.8 μg/m3 (32) 32.0
 
Jan. 19, 2019, 8 p.m. 18.8 ppb (17) 5.6 ppb (5) N/A 13.0 ppb (12) N/A N/A 17.0 ppb (13) 0.3 ppb (3) N/A 9.8 μg/m3 (41) 41.0
 
Jan. 19, 2019, 7 p.m. 44.3 ppb (41) 22.8 ppb (21) N/A 22.0 ppb (20) N/A N/A 5.0 ppb (4) 0.5 ppb (6) N/A 14.1 μg/m3 (54) 54.0
 
Jan. 19, 2019, 6 p.m. 52.1 ppb (48) 29.8 ppb (28) N/A 22.0 ppb (20) N/A N/A 3.0 ppb (2) 0.6 ppb (7) N/A 10.7 μg/m3 (45) 48.0
 
Jan. 19, 2019, 5 p.m. 48.1 ppb (45) 25.5 ppb (24) N/A 23.0 ppb (21) N/A N/A 2.0 ppb (2) 0.5 ppb (6) N/A 9.4 μg/m3 (39) 45.0
 
Jan. 19, 2019, 4 p.m. 39.9 ppb (37) 17.0 ppb (16) N/A 23.0 ppb (21) N/A N/A 2.0 ppb (2) 0.4 ppb (4) N/A 8.7 μg/m3 (36) 37.0
 
Jan. 19, 2019, 3 p.m. 23.6 ppb (22) 3.4 ppb (3) N/A 20.0 ppb (19) N/A N/A 5.0 ppb (4) 0.2 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2019, 2 p.m. 17.6 ppb (16) 1.5 ppb (1) N/A 16.0 ppb (15) N/A N/A 8.0 ppb (6) 0.2 ppb (2) N/A 6.2 μg/m3 (26) 26.0
 
Jan. 19, 2019, 1 p.m. 19.1 ppb (18) 2.1 ppb (2) N/A 17.0 ppb (16) N/A N/A 9.0 ppb (7) 0.2 ppb (2) N/A 5.8 μg/m3 (24) 24.0
 
Jan. 19, 2019, noon 21.3 ppb (20) 2.6 ppb (2) N/A 19.0 ppb (18) N/A N/A 8.0 ppb (6) 0.2 ppb (2) N/A 6.1 μg/m3 (25) 25.0
 
Jan. 19, 2019, 11 a.m. 4.8 ppb (4) 1.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 20.0 ppb (15) 0.1 ppb (1) N/A 1.1 μg/m3 (5) 15.0
 
Jan. 19, 2019, 10 a.m. 4.2 ppb (4) 1.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 23.0 ppb (18) 0.1 ppb (1) N/A 1.1 μg/m3 (5) 18.0
 
Jan. 19, 2019, 9 a.m. 5.2 ppb (5) 1.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 23.0 ppb (18) 0.1 ppb (1) N/A 1.7 μg/m3 (7) 18.0
 
Jan. 19, 2019, 8 a.m. 8.9 ppb (8) 1.5 ppb (1) N/A 7.0 ppb (6) N/A N/A 21.0 ppb (16) 0.2 ppb (2) N/A 2.6 μg/m3 (11) 16.0
 
Jan. 19, 2019, 7 a.m. 7.2 ppb (7) 1.4 ppb (1) N/A 6.0 ppb (6) N/A N/A 25.0 ppb (19) 0.2 ppb (2) N/A 2.6 μg/m3 (11) 19.0
 
Jan. 19, 2019, 6 a.m. 7.2 ppb (7) 1.5 ppb (1) N/A 6.0 ppb (6) N/A N/A 26.0 ppb (20) 0.1 ppb (1) N/A 2.2 μg/m3 (9) 20.0
 
Jan. 19, 2019, 5 a.m. 7.8 ppb (7) 1.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 26.0 ppb (20) 0.1 ppb (1) N/A 2.3 μg/m3 (10) 20.0
 
Jan. 19, 2019, 4 a.m. 8.6 ppb (8) 1.8 ppb (2) N/A 7.0 ppb (6) N/A N/A 26.0 ppb (20) 0.2 ppb (2) N/A 2.3 μg/m3 (10) 20.0
 
Jan. 19, 2019, 3 a.m. 9.8 ppb (9) 1.8 ppb (2) N/A 8.0 ppb (7) N/A N/A 25.0 ppb (19) 0.2 ppb (2) N/A 2.5 μg/m3 (10) 19.0
 
Jan. 19, 2019, 2 a.m. 11.9 ppb (11) 2.3 ppb (2) N/A 10.0 ppb (9) N/A N/A 22.0 ppb (17) 0.2 ppb (2) N/A 3.4 μg/m3 (14) 17.0
 
Jan. 19, 2019, 1 a.m. 12.0 ppb (11) 1.9 ppb (2) N/A 10.0 ppb (9) N/A N/A 22.0 ppb (17) 0.2 ppb (2) N/A 3.0 μg/m3 (12) 17.0
 
Jan. 19, 2019, midnight 14.6 ppb (14) 2.2 ppb (2) N/A 12.0 ppb (11) N/A N/A 20.0 ppb (15) 0.2 ppb (2) N/A 3.2 μg/m3 (13) 15.0
 
Jan. 18, 2019, 11 p.m. 18.2 ppb (17) 3.6 ppb (3) N/A 15.0 ppb (14) N/A N/A 16.0 ppb (12) 0.2 ppb (2) N/A 4.1 μg/m3 (17) 17.0
 
Jan. 18, 2019, 10 p.m. 34.0 ppb (31) 10.2 ppb (9) N/A 24.0 ppb (22) N/A N/A 6.0 ppb (5) 0.3 ppb (3) N/A 5.3 μg/m3 (22) 31.0
 
Jan. 18, 2019, 9 p.m. 22.7 ppb (21) 4.3 ppb (4) N/A 18.0 ppb (17) N/A N/A 11.0 ppb (8) 0.3 ppb (3) N/A 5.4 μg/m3 (23) 23.0
 
Jan. 18, 2019, 8 p.m. 36.5 ppb (34) 15.1 ppb (14) N/A 21.0 ppb (19) N/A N/A 7.0 ppb (5) 0.4 ppb (4) N/A 6.9 μg/m3 (29) 34.0
 
Jan. 18, 2019, 7 p.m. 56.6 ppb (53) 31.7 ppb (29) N/A 25.0 ppb (23) N/A N/A 4.0 ppb (3) 0.6 ppb (7) N/A 7.6 μg/m3 (32) 53.0
 
Jan. 18, 2019, 6 p.m. 32.0 ppb (30) 13.2 ppb (12) N/A 19.0 ppb (18) N/A N/A 10.0 ppb (8) 0.3 ppb (3) N/A 5.1 μg/m3 (21) 30.0
 
Jan. 18, 2019, 5 p.m. 49.1 ppb (45) 25.2 ppb (23) N/A 24.0 ppb (22) N/A N/A 3.0 ppb (2) 0.5 ppb (6) N/A 5.5 μg/m3 (23) 45.0
 
Jan. 18, 2019, 4 p.m. 62.6 ppb (59) 35.7 ppb (33) N/A 27.0 ppb (25) N/A N/A 2.0 ppb (2) 0.7 ppb (8) N/A 5.0 μg/m3 (21) 59.0
 
Jan. 18, 2019, 3 p.m. 68.3 ppb (65) 39.0 ppb (36) N/A 29.0 ppb (27) N/A N/A 2.0 ppb (2) 0.6 ppb (7) N/A 6.4 μg/m3 (27) 65.0
 
Jan. 18, 2019, 2 p.m. 18.1 ppb (17) 2.7 ppb (3) N/A 15.0 ppb (14) N/A N/A 13.0 ppb (10) 0.2 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 18, 2019, 1 p.m. 11.5 ppb (11) 1.4 ppb (1) N/A 10.0 ppb (9) N/A N/A 18.0 ppb (14) 0.2 ppb (2) N/A 3.5 μg/m3 (15) 15.0
 
Jan. 18, 2019, noon 6.8 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 25.0 ppb (19) 0.1 ppb (1) N/A 2.7 μg/m3 (11) 19.0
 
Jan. 18, 2019, 11 a.m. 4.5 ppb (4) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 33.0 ppb (25) 0.1 ppb (1) N/A 1.9 μg/m3 (8) 25.0
 
Jan. 18, 2019, 10 a.m. 3.7 ppb (3) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 34.0 ppb (26) 0.1 ppb (1) N/A 2.0 μg/m3 (8) 26.0
 
Jan. 18, 2019, 9 a.m. 3.8 ppb (4) 1.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 34.0 ppb (26) 0.1 ppb (1) N/A 1.9 μg/m3 (8) 26.0
 
Jan. 18, 2019, 8 a.m. 4.4 ppb (4) 1.2 ppb (1) N/A 3.0 ppb (3) N/A N/A 34.0 ppb (26) 0.1 ppb (1) N/A 2.2 μg/m3 (9) 26.0
 
Jan. 18, 2019, 7 a.m. 3.7 ppb (3) 1.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (27) 0.1 ppb (1) N/A 2.3 μg/m3 (10) 27.0
 
Jan. 18, 2019, 6 a.m. 3.8 ppb (4) 1.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (27) 0.1 ppb (1) N/A 2.6 μg/m3 (11) 27.0
 
Jan. 18, 2019, 5 a.m. 4.0 ppb (4) 1.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (27) 0.1 ppb (1) N/A 2.6 μg/m3 (11) 27.0
 
Jan. 18, 2019, 4 a.m. 4.4 ppb (4) 1.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (28) 0.1 ppb (1) N/A 2.5 μg/m3 (10) 28.0
 
Jan. 18, 2019, 3 a.m. 5.0 ppb (5) 1.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (26) 0.1 ppb (1) N/A 2.6 μg/m3 (11) 26.0
 
Jan. 18, 2019, 2 a.m. 4.8 ppb (4) 1.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 35.0 ppb (27) 0.1 ppb (1) N/A 2.2 μg/m3 (9) 27.0
 
Jan. 18, 2019, 1 a.m. 5.5 ppb (5) 1.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (28) 0.1 ppb (1) N/A 2.3 μg/m3 (10) 28.0
 
Jan. 18, 2019, midnight 5.1 ppb (5) 1.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (28) 0.1 ppb (1) N/A 1.5 μg/m3 (6) 28.0
 
Jan. 17, 2019, 11 p.m. 4.2 ppb (4) 1.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (28) 0.1 ppb (1) N/A 1.2 μg/m3 (5) 28.0
 
Jan. 17, 2019, 10 p.m. 4.1 ppb (4) 1.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 38.0 ppb (29) 0.1 ppb (1) N/A 1.2 μg/m3 (5) 29.0
 
Jan. 17, 2019, 9 p.m. 7.7 ppb (7) 2.5 ppb (2) N/A 5.0 ppb (5) N/A N/A 32.0 ppb (25) 0.1 ppb (1) N/A 2.3 μg/m3 (10) 25.0
 
Jan. 17, 2019, 8 p.m. 18.4 ppb (17) 5.6 ppb (5) N/A 13.0 ppb (12) N/A N/A 12.0 ppb (9) 0.2 ppb (2) N/A 5.8 μg/m3 (24) 24.0
 
Jan. 17, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) 0.2 ppb (2) N/A 5.4 μg/m3 (23) 23.0
 
Jan. 17, 2019, 6 p.m. 16.0 ppb (15) 4.7 ppb (4) N/A 11.0 ppb (10) N/A N/A 13.0 ppb (10) 0.2 ppb (2) N/A 5.3 μg/m3 (22) 22.0
 
Jan. 17, 2019, 5 p.m. 17.7 ppb (16) 5.0 ppb (5) N/A 13.0 ppb (12) N/A N/A 12.0 ppb (9) 0.2 ppb (2) N/A 4.9 μg/m3 (20) 20.0
 
Jan. 17, 2019, 4 p.m. 20.2 ppb (19) 4.5 ppb (4) N/A 16.0 ppb (15) N/A N/A 10.0 ppb (8) 0.2 ppb (2) N/A 4.4 μg/m3 (18) 19.0
 
Jan. 17, 2019, 3 p.m. 12.9 ppb (12) 2.6 ppb (2) N/A 10.0 ppb (9) N/A N/A 14.0 ppb (11) 0.2 ppb (2) N/A 4.5 μg/m3 (19) 19.0
 
Jan. 17, 2019, 2 p.m. 9.2 ppb (9) 2.1 ppb (2) N/A 7.0 ppb (6) N/A N/A 17.0 ppb (13) 0.1 ppb (1) N/A 4.4 μg/m3 (18) 18.0
 
Jan. 17, 2019, 1 p.m. 7.1 ppb (7) 1.8 ppb (2) N/A 5.0 ppb (5) N/A N/A 19.0 ppb (15) 0.1 ppb (1) N/A 4.2 μg/m3 (18) 18.0
 
Jan. 17, 2019, noon 6.0 ppb (6) 1.8 ppb (2) N/A 4.0 ppb (4) N/A N/A 19.0 ppb (15) 0.1 ppb (1) N/A 4.6 μg/m3 (19) 19.0
 
Jan. 17, 2019, 11 a.m. 5.5 ppb (5) 1.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 19.0 ppb (15) 0.1 ppb (1) N/A 4.3 μg/m3 (18) 18.0
 
Jan. 17, 2019, 10 a.m. 5.4 ppb (5) 1.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 19.0 ppb (15) 0.1 ppb (1) N/A 3.6 μg/m3 (15) 15.0
 
Jan. 17, 2019, 9 a.m. 5.7 ppb (5) 1.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 19.0 ppb (15) 0.1 ppb (1) N/A 3.1 μg/m3 (13) 15.0
 
Jan. 17, 2019, 8 a.m. 5.2 ppb (5) 1.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 19.0 ppb (15) 0.1 ppb (1) N/A 2.9 μg/m3 (12) 15.0
 
Jan. 17, 2019, 7 a.m. 5.6 ppb (5) 1.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 19.0 ppb (15) 0.1 ppb (1) N/A 2.8 μg/m3 (12) 15.0
 
Jan. 17, 2019, 6 a.m. 6.0 ppb (6) 1.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 19.0 ppb (15) 0.1 ppb (1) N/A 3.4 μg/m3 (14) 15.0
 
Jan. 17, 2019, 5 a.m. 6.5 ppb (6) 1.7 ppb (2) N/A 5.0 ppb (5) N/A N/A 18.0 ppb (14) 0.1 ppb (1) N/A 5.6 μg/m3 (23) 23.0
 
Jan. 17, 2019, 4 a.m. 7.0 ppb (6) 1.9 ppb (2) N/A 5.0 ppb (5) N/A N/A 18.0 ppb (14) 0.1 ppb (1) N/A 6.1 μg/m3 (25) 25.0
 
Jan. 17, 2019, 3 a.m. 7.4 ppb (7) 2.0 ppb (2) N/A 5.0 ppb (5) N/A N/A 17.0 ppb (13) 0.1 ppb (1) N/A 7.9 μg/m3 (33) 33.0
 
Jan. 17, 2019, 2 a.m. 8.6 ppb (8) 2.3 ppb (2) N/A 6.0 ppb (6) N/A N/A 17.0 ppb (13) 0.1 ppb (1) N/A 8.9 μg/m3 (37) 37.0
 
Jan. 17, 2019, 1 a.m. 9.2 ppb (9) 2.3 ppb (2) N/A 7.0 ppb (6) N/A N/A 16.0 ppb (12) 0.1 ppb (1) N/A 9.8 μg/m3 (41) 41.0
 
Jan. 17, 2019, midnight 9.2 ppb (9) 2.5 ppb (2) N/A 7.0 ppb (6) N/A N/A 16.0 ppb (12) 0.1 ppb (1) N/A 10.9 μg/m3 (45) 45.0
 
Jan. 16, 2019, 11 p.m. 8.8 ppb (8) 2.7 ppb (3) N/A 6.0 ppb (6) N/A N/A 16.0 ppb (12) 0.1 ppb (1) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 16, 2019, 10 p.m. 8.8 ppb (8) 2.9 ppb (3) N/A 6.0 ppb (6) N/A N/A 17.0 ppb (13) 0.1 ppb (1) N/A 10.7 μg/m3 (45) 45.0
 
Jan. 16, 2019, 9 p.m. 8.7 ppb (8) 3.0 ppb (3) N/A 6.0 ppb (6) N/A N/A 17.0 ppb (13) 0.1 ppb (1) N/A 10.4 μg/m3 (43) 43.0
 
Jan. 16, 2019, 8 p.m. 9.0 ppb (8) 3.4 ppb (3) N/A 6.0 ppb (6) N/A N/A 17.0 ppb (13) 0.1 ppb (1) N/A 10.2 μg/m3 (42) 42.0
 
Jan. 16, 2019, 7 p.m. 9.2 ppb (9) 3.6 ppb (3) N/A 6.0 ppb (6) N/A N/A 17.0 ppb (13) 0.1 ppb (1) N/A 9.9 μg/m3 (41) 41.0
 
Jan. 16, 2019, 6 p.m. 9.4 ppb (9) 3.5 ppb (3) N/A 6.0 ppb (6) N/A N/A 17.0 ppb (13) 0.1 ppb (1) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 16, 2019, 5 p.m. 9.3 ppb (9) 3.1 ppb (3) N/A 6.0 ppb (6) N/A N/A 17.0 ppb (13) 0.1 ppb (1) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 16, 2019, 4 p.m. 9.6 ppb (9) 2.7 ppb (3) N/A 7.0 ppb (6) N/A N/A 16.0 ppb (12) 0.1 ppb (1) N/A 9.8 μg/m3 (41) 41.0
 
Jan. 16, 2019, 3 p.m. 8.3 ppb (8) 2.3 ppb (2) N/A 6.0 ppb (6) N/A N/A 18.0 ppb (14) 0.1 ppb (1) N/A 9.3 μg/m3 (39) 39.0
 
Jan. 16, 2019, 2 p.m. 7.3 ppb (7) 2.1 ppb (2) N/A 5.0 ppb (5) N/A N/A 18.0 ppb (14) 0.1 ppb (1) N/A 9.9 μg/m3 (41) 41.0
 
Jan. 16, 2019, 1 p.m. 5.9 ppb (5) 1.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 19.0 ppb (15) 0.1 ppb (1) N/A 9.7 μg/m3 (40) 40.0
 
Jan. 16, 2019, noon 5.5 ppb (5) 1.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 20.0 ppb (15) 0.1 ppb (1) N/A 10.3 μg/m3 (43) 43.0
 
Jan. 16, 2019, 11 a.m. 5.1 ppb (5) 1.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 20.0 ppb (15) 0.1 ppb (1) N/A 9.5 μg/m3 (40) 40.0
 
Jan. 16, 2019, 10 a.m. 4.8 ppb (4) 1.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 20.0 ppb (15) 0.1 ppb (1) N/A 8.4 μg/m3 (35) 35.0
 
Jan. 16, 2019, 9 a.m. 5.0 ppb (5) 1.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 20.0 ppb (15) 0.1 ppb (1) N/A 8.3 μg/m3 (35) 35.0
 
Jan. 16, 2019, 8 a.m. 4.8 ppb (4) 1.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 21.0 ppb (16) 0.1 ppb (1) N/A 8.5 μg/m3 (35) 35.0
 
Jan. 16, 2019, 7 a.m. 5.4 ppb (5) 1.7 ppb (2) N/A 4.0 ppb (4) N/A N/A 21.0 ppb (16) 0.1 ppb (1) N/A 7.9 μg/m3 (33) 33.0
 
Jan. 16, 2019, 6 a.m. 5.4 ppb (5) 1.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 21.0 ppb (16) 0.1 ppb (1) N/A 6.9 μg/m3 (29) 29.0
 
Jan. 16, 2019, 5 a.m. 5.6 ppb (5) 1.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 21.0 ppb (16) 0.1 ppb (1) N/A 5.9 μg/m3 (25) 25.0
 
Jan. 16, 2019, 4 a.m. 6.2 ppb (6) 1.8 ppb (2) N/A 4.0 ppb (4) N/A N/A 20.0 ppb (15) 0.1 ppb (1) N/A 5.9 μg/m3 (25) 25.0
 
Jan. 16, 2019, 3 a.m. 7.0 ppb (6) 1.9 ppb (2) N/A 5.0 ppb (5) N/A N/A 19.0 ppb (15) 0.1 ppb (1) N/A 6.2 μg/m3 (26) 26.0
 
Jan. 16, 2019, 2 a.m. 7.3 ppb (7) 2.0 ppb (2) N/A 5.0 ppb (5) N/A N/A 19.0 ppb (15) 0.1 ppb (1) N/A 5.7 μg/m3 (24) 24.0
 
Jan. 16, 2019, 1 a.m. 7.7 ppb (7) 2.1 ppb (2) N/A 6.0 ppb (6) N/A N/A 18.0 ppb (14) 0.1 ppb (1) N/A 5.1 μg/m3 (21) 21.0
 
Jan. 16, 2019, midnight 8.4 ppb (8) 2.6 ppb (2) N/A 6.0 ppb (6) N/A N/A 18.0 ppb (14) 0.1 ppb (1) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2019, 11 p.m. 8.1 ppb (8) 2.9 ppb (3) N/A 5.0 ppb (5) N/A N/A 20.0 ppb (15) 0.1 ppb (1) N/A 4.9 μg/m3 (20) 20.0
 
Jan. 15, 2019, 10 p.m. 7.7 ppb (7) 2.7 ppb (3) N/A 5.0 ppb (5) N/A N/A 20.0 ppb (15) 0.1 ppb (1) N/A 5.9 μg/m3 (25) 25.0
 
Jan. 15, 2019, 9 p.m. 8.4 ppb (8) 3.0 ppb (3) N/A 5.0 ppb (5) N/A N/A 20.0 ppb (15) 0.1 ppb (1) N/A 6.2 μg/m3 (26) 26.0
 
Jan. 15, 2019, 8 p.m. 8.0 ppb (7) 2.9 ppb (3) N/A 5.0 ppb (5) N/A N/A 20.0 ppb (15) 0.1 ppb (1) N/A 5.7 μg/m3 (24) 24.0
 
Jan. 15, 2019, 7 p.m. 8.3 ppb (8) 3.0 ppb (3) N/A 5.0 ppb (5) N/A N/A 19.0 ppb (15) 0.1 ppb (1) N/A 5.4 μg/m3 (23) 23.0
 
Jan. 15, 2019, 6 p.m. 7.8 ppb (7) 2.8 ppb (3) N/A 5.0 ppb (5) N/A N/A 19.0 ppb (15) 0.1 ppb (1) N/A 5.1 μg/m3 (21) 21.0
 
Jan. 15, 2019, 5 p.m. 8.0 ppb (7) 2.7 ppb (3) N/A 5.0 ppb (5) N/A N/A 19.0 ppb (15) 0.1 ppb (1) N/A 5.2 μg/m3 (22) 22.0
 
Jan. 15, 2019, 4 p.m. 8.1 ppb (8) 2.5 ppb (2) N/A 6.0 ppb (6) N/A N/A 18.0 ppb (14) 0.1 ppb (1) N/A 5.2 μg/m3 (22) 22.0
 
Jan. 15, 2019, 3 p.m. 7.4 ppb (7) 2.2 ppb (2) N/A 5.0 ppb (5) N/A N/A 19.0 ppb (15) 0.1 ppb (1) N/A 4.9 μg/m3 (20) 20.0
 
Jan. 15, 2019, 2 p.m. 6.3 ppb (6) 1.8 ppb (2) N/A 4.0 ppb (4) N/A N/A 20.0 ppb (15) 0.1 ppb (1) N/A 4.8 μg/m3 (20) 20.0
 
Jan. 15, 2019, 1 p.m. 5.3 ppb (5) 1.7 ppb (2) N/A 4.0 ppb (4) N/A N/A 21.0 ppb (16) 0.1 ppb (1) N/A 4.8 μg/m3 (20) 20.0
 
Jan. 15, 2019, noon 4.4 ppb (4) 1.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 21.0 ppb (16) 0.1 ppb (1) N/A 4.8 μg/m3 (20) 20.0
 
Jan. 15, 2019, 11 a.m. 4.8 ppb (4) 1.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 21.0 ppb (16) 0.1 ppb (1) N/A 4.5 μg/m3 (19) 19.0
 
Jan. 15, 2019, 10 a.m. 4.6 ppb (4) 1.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 21.0 ppb (16) 0.1 ppb (1) N/A 5.1 μg/m3 (21) 21.0
 
Jan. 15, 2019, 9 a.m. 4.6 ppb (4) 1.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 21.0 ppb (16) 0.1 ppb (1) N/A 6.6 μg/m3 (28) 28.0
 
Jan. 15, 2019, 8 a.m. 4.5 ppb (4) 1.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 22.0 ppb (17) 0.1 ppb (1) N/A 5.6 μg/m3 (23) 23.0
 
Jan. 15, 2019, 7 a.m. 4.6 ppb (4) 1.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 22.0 ppb (17) 0.1 ppb (1) N/A 4.8 μg/m3 (20) 20.0
 
Jan. 15, 2019, 6 a.m. 4.6 ppb (4) 1.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 23.0 ppb (18) 0.1 ppb (1) N/A 3.8 μg/m3 (16) 18.0
 
Jan. 15, 2019, 5 a.m. 5.1 ppb (5) 1.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 23.0 ppb (18) 0.1 ppb (1) N/A 3.5 μg/m3 (15) 18.0
 
Jan. 15, 2019, 4 a.m. 5.4 ppb (5) 1.7 ppb (2) N/A 4.0 ppb (4) N/A N/A 22.0 ppb (17) 0.1 ppb (1) N/A 3.3 μg/m3 (14) 17.0
 
Jan. 15, 2019, 3 a.m. 6.1 ppb (6) 1.9 ppb (2) N/A 4.0 ppb (4) N/A N/A 21.0 ppb (16) 0.1 ppb (1) N/A 3.8 μg/m3 (16) 16.0
 
Jan. 15, 2019, 2 a.m. 6.6 ppb (6) 1.9 ppb (2) N/A 5.0 ppb (5) N/A N/A 20.0 ppb (15) 0.1 ppb (1) N/A 4.3 μg/m3 (18) 18.0
 
Jan. 15, 2019, 1 a.m. 7.1 ppb (7) 2.1 ppb (2) N/A 5.0 ppb (5) N/A N/A 20.0 ppb (15) 0.1 ppb (1) N/A 4.1 μg/m3 (17) 17.0
 
Jan. 15, 2019, midnight 7.0 ppb (6) 2.5 ppb (2) N/A 5.0 ppb (5) N/A N/A 20.0 ppb (15) 0.1 ppb (1) N/A 3.6 μg/m3 (15) 15.0
 
Jan. 14, 2019, 11 p.m. 6.8 ppb (6) 2.8 ppb (3) N/A 4.0 ppb (4) N/A N/A 21.0 ppb (16) 0.1 ppb (1) N/A 3.0 μg/m3 (12) 16.0
 
Jan. 14, 2019, 10 p.m. 6.7 ppb (6) 3.1 ppb (3) N/A 4.0 ppb (4) N/A N/A 20.0 ppb (15) 0.1 ppb (1) N/A 2.9 μg/m3 (12) 15.0
 
Jan. 14, 2019, 9 p.m. 6.6 ppb (6) 3.2 ppb (3) N/A 3.0 ppb (3) N/A N/A 20.0 ppb (15) 0.1 ppb (1) N/A 2.8 μg/m3 (12) 15.0
 
Jan. 14, 2019, 8 p.m. 6.7 ppb (6) 3.1 ppb (3) N/A 4.0 ppb (4) N/A N/A 20.0 ppb (15) 0.1 ppb (1) N/A 3.2 μg/m3 (13) 15.0
 
Jan. 14, 2019, 7 p.m. 7.2 ppb (7) 3.2 ppb (3) N/A 4.0 ppb (4) N/A N/A 21.0 ppb (16) N/A N/A 3.3 μg/m3 (14) 16.0
 
Jan. 14, 2019, 6 p.m. 7.2 ppb (7) 3.1 ppb (3) N/A 4.0 ppb (4) N/A N/A 21.0 ppb (16) 0.1 ppb (1) N/A 3.6 μg/m3 (15) 16.0
 
Jan. 14, 2019, 5 p.m. 7.6 ppb (7) 2.9 ppb (3) N/A 5.0 ppb (5) N/A N/A 21.0 ppb (16) 0.1 ppb (1) N/A 4.1 μg/m3 (17) 17.0
 
Jan. 14, 2019, 4 p.m. 8.6 ppb (8) 2.5 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 20.0 ppb (15) 0.1 ppb (1) N/A 4.6 μg/m3 (19) 19.0
 
Jan. 14, 2019, 3 p.m. 7.4 ppb (7) 1.9 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 22.0 ppb (17) 0.1 ppb (1) N/A 4.3 μg/m3 (18) 18.0
 
Jan. 14, 2019, 2 p.m. 5.6 ppb (5) 1.6 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 24.0 ppb (18) 0.1 ppb (1) N/A 3.1 μg/m3 (13) 18.0
 
Jan. 14, 2019, 1 p.m. 4.4 ppb (4) 1.4 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (19) 0.1 ppb (1) N/A 3.0 μg/m3 (12) 19.0
 
Jan. 14, 2019, noon 3.8 ppb (4) 1.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (20) 0.1 ppb (1) N/A 3.0 μg/m3 (12) 20.0
 
Jan. 14, 2019, 11 a.m. 3.6 ppb (3) 1.2 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 27.0 ppb (21) 0.1 ppb (1) N/A 2.7 μg/m3 (11) 21.0
 
Jan. 14, 2019, 10 a.m. 3.7 ppb (3) 1.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 27.0 ppb (21) 0.1 ppb (1) N/A 2.6 μg/m3 (11) 21.0
 
Jan. 14, 2019, 9 a.m. 3.9 ppb (4) 1.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (20) 0.1 ppb (1) N/A 2.7 μg/m3 (11) 20.0
 
Jan. 14, 2019, 8 a.m. 3.7 ppb (3) 1.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (20) 0.1 ppb (1) N/A 2.9 μg/m3 (12) 20.0
 
Jan. 14, 2019, 7 a.m. 3.8 ppb (4) 1.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (20) 0.1 ppb (1) N/A 3.3 μg/m3 (14) 20.0
 
Jan. 14, 2019, 6 a.m. 4.5 ppb (4) 1.4 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (20) 0.1 ppb (1) N/A 3.6 μg/m3 (15) 20.0
 
Jan. 14, 2019, 5 a.m. 4.7 ppb (4) 1.4 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (20) 0.1 ppb (1) N/A 3.7 μg/m3 (15) 20.0
 
Jan. 14, 2019, 4 a.m. 5.3 ppb (5) 1.5 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 25.0 ppb (19) 0.1 ppb (1) N/A 4.0 μg/m3 (17) 19.0
 
Jan. 14, 2019, 3 a.m. 5.4 ppb (5) 1.5 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 25.0 ppb (19) 0.1 ppb (1) N/A 4.3 μg/m3 (18) 19.0
 
Jan. 14, 2019, 2 a.m. 5.4 ppb (5) 1.5 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 24.0 ppb (18) 0.1 ppb (1) N/A 4.0 μg/m3 (17) 18.0
 
Jan. 14, 2019, 1 a.m. 5.5 ppb (5) 1.5 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 25.0 ppb (19) 0.1 ppb (1) N/A 4.4 μg/m3 (18) 19.0
 
Jan. 14, 2019, midnight 5.8 ppb (5) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 25.0 ppb (19) 0.1 ppb (1) N/A 4.0 μg/m3 (17) 19.0
 
Jan. 13, 2019, 11 p.m. 5.3 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (20) 0.1 ppb (1) N/A 3.2 μg/m3 (13) 20.0
 
Jan. 13, 2019, 10 p.m. 5.2 ppb (5) 2.2 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (19) 0.1 ppb (1) N/A 3.1 μg/m3 (13) 19.0
 
Jan. 13, 2019, 9 p.m. 4.9 ppb (5) 2.1 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (20) 0.1 ppb (1) N/A 3.0 μg/m3 (12) 20.0
 
Jan. 13, 2019, 8 p.m. 4.7 ppb (4) 1.9 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (20) 0.1 ppb (1) N/A 2.8 μg/m3 (12) 20.0
 
Jan. 13, 2019, 7 p.m. 5.1 ppb (5) 2.3 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (19) 0.1 ppb (1) N/A 3.1 μg/m3 (13) 19.0
 
Jan. 13, 2019, 6 p.m. 5.3 ppb (5) 2.4 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (19) 0.1 ppb (1) N/A 3.7 μg/m3 (15) 19.0
 
Jan. 13, 2019, 5 p.m. 5.3 ppb (5) 2.1 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (21) 0.1 ppb (1) N/A 3.8 μg/m3 (16) 21.0
 
Jan. 13, 2019, 4 p.m. 5.0 ppb (5) 1.7 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (17) 0.1 ppb (1) N/A 4.2 μg/m3 (18) 18.0
 
Jan. 13, 2019, 3 p.m. 4.6 ppb (4) 1.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (17) 0.1 ppb (1) N/A 4.5 μg/m3 (19) 19.0
 
Jan. 13, 2019, 2 p.m. 4.3 ppb (4) 1.4 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 23.0 ppb (18) 0.1 ppb (1) N/A 4.6 μg/m3 (19) 19.0