AQSQID: 061010003

Site Name: Yuba City

Location: Yuba City, CA

Reporting: True, Located: True

Current AQI: 33.0

Yuba City CA, US: 39.1389, -121.6175

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 19, 2019, 5 p.m. 9.4 ppb (9) 3.0 ppb (3) N/A 6.0 ppb (6) N/A N/A 14.0 ppb (11) N/A 11.0 μg/m3 (10) 8.0 μg/m3 (33) 33.0
 
Jan. 19, 2019, 4 p.m. 11.2 ppb (10) 2.8 ppb (3) N/A 8.0 ppb (7) N/A N/A 9.0 ppb (7) N/A 13.0 μg/m3 (12) 9.0 μg/m3 (38) 38.0
 
Jan. 19, 2019, 3 p.m. 12.4 ppb (11) 2.9 ppb (3) N/A 10.0 ppb (9) N/A N/A 8.0 ppb (6) N/A 13.0 μg/m3 (12) 8.0 μg/m3 (33) 33.0
 
Jan. 19, 2019, 2 p.m. 10.7 ppb (10) 1.8 ppb (2) N/A 9.0 ppb (8) N/A N/A 10.0 ppb (8) N/A 16.0 μg/m3 (15) 13.0 μg/m3 (52) 52.0
 
Jan. 19, 2019, 1 p.m. 10.1 ppb (9) 3.0 ppb (3) N/A 7.0 ppb (6) N/A N/A 14.0 ppb (11) N/A 13.0 μg/m3 (12) 12.0 μg/m3 (50) 50.0
 
Jan. 19, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 11.0 μg/m3 (46) 46.0
 
Jan. 19, 2019, 11 a.m. 4.3 ppb (4) 1.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 18.0 ppb (14) N/A 12.0 μg/m3 (11) 8.0 μg/m3 (33) 33.0
 
Jan. 19, 2019, 10 a.m. 2.9 ppb (3) 1.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 22.0 ppb (17) N/A 7.0 μg/m3 (6) 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2019, 9 a.m. 4.7 ppb (4) 1.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 23.0 ppb (18) N/A 6.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2019, 8 a.m. 4.4 ppb (4) 1.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 23.0 ppb (18) N/A 11.0 μg/m3 (10) 8.0 μg/m3 (33) 33.0
 
Jan. 19, 2019, 7 a.m. 5.3 ppb (5) 1.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 20.0 ppb (15) N/A 13.0 μg/m3 (12) 7.0 μg/m3 (29) 29.0
 
Jan. 19, 2019, 6 a.m. 6.1 ppb (6) 1.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 20.0 ppb (15) N/A 10.0 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2019, 5 a.m. 5.3 ppb (5) 1.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 21.0 ppb (16) N/A 15.0 μg/m3 (14) 8.0 μg/m3 (33) 33.0
 
Jan. 19, 2019, 4 a.m. 10.4 ppb (10) 2.2 ppb (2) N/A 8.0 ppb (7) N/A N/A 15.0 ppb (12) N/A 17.0 μg/m3 (15) 10.0 μg/m3 (42) 42.0
 
Jan. 19, 2019, 3 a.m. 19.3 ppb (18) 4.6 ppb (4) N/A 15.0 ppb (14) N/A N/A 12.0 ppb (9) N/A 32.0 μg/m3 (29) 18.0 μg/m3 (63) 63.0
 
Jan. 19, 2019, 2 a.m. 15.9 ppb (15) 3.3 ppb (3) N/A 13.0 ppb (12) N/A N/A 16.0 ppb (12) N/A 25.0 μg/m3 (23) 17.0 μg/m3 (61) 61.0
 
Jan. 19, 2019, 1 a.m. 12.8 ppb (12) 2.9 ppb (3) N/A 10.0 ppb (9) N/A N/A 20.0 ppb (15) N/A 18.0 μg/m3 (16) 11.0 μg/m3 (46) 46.0
 
Jan. 19, 2019, midnight 18.0 ppb (17) 5.6 ppb (5) N/A 12.0 ppb (11) N/A N/A 18.0 ppb (14) N/A 27.0 μg/m3 (25) 15.0 μg/m3 (56) 56.0
 
Jan. 18, 2019, 11 p.m. 9.8 ppb (9) 2.1 ppb (2) N/A 8.0 ppb (7) N/A N/A 23.0 ppb (18) N/A 17.0 μg/m3 (15) 8.0 μg/m3 (33) 33.0
 
Jan. 18, 2019, 10 p.m. 7.3 ppb (7) 2.0 ppb (2) N/A 5.0 ppb (5) N/A N/A 25.0 ppb (19) N/A 21.0 μg/m3 (19) 7.0 μg/m3 (29) 29.0
 
Jan. 18, 2019, 9 p.m. 6.9 ppb (6) 2.2 ppb (2) N/A 5.0 ppb (5) N/A N/A 26.0 ppb (20) N/A 21.0 μg/m3 (19) 7.0 μg/m3 (29) 29.0
 
Jan. 18, 2019, 8 p.m. 7.3 ppb (7) 2.5 ppb (2) N/A 5.0 ppb (5) N/A N/A 25.0 ppb (19) N/A 22.0 μg/m3 (20) 8.0 μg/m3 (33) 33.0
 
Jan. 18, 2019, 7 p.m. 13.8 ppb (13) 4.6 ppb (4) N/A 9.0 ppb (8) N/A N/A 15.0 ppb (12) N/A 24.0 μg/m3 (22) 13.0 μg/m3 (52) 52.0
 
Jan. 18, 2019, 6 p.m. 15.4 ppb (14) 5.0 ppb (5) N/A 11.0 ppb (10) N/A N/A 14.0 ppb (11) N/A 25.0 μg/m3 (23) 12.0 μg/m3 (50) 50.0
 
Jan. 18, 2019, 5 p.m. 17.5 ppb (16) 5.2 ppb (5) N/A 12.0 ppb (11) N/A N/A 9.0 ppb (7) N/A 17.0 μg/m3 (15) 9.0 μg/m3 (38) 38.0
 
Jan. 18, 2019, 4 p.m. 29.9 ppb (28) 11.5 ppb (11) N/A 18.0 ppb (17) N/A N/A 3.0 ppb (2) N/A 18.0 μg/m3 (16) 6.0 μg/m3 (25) 28.0
 
Jan. 18, 2019, 3 p.m. 18.1 ppb (17) 3.3 ppb (3) N/A 15.0 ppb (14) N/A N/A 6.0 ppb (5) N/A 14.0 μg/m3 (13) 6.0 μg/m3 (25) 25.0
 
Jan. 18, 2019, 2 p.m. 11.7 ppb (11) 1.9 ppb (2) N/A 10.0 ppb (9) N/A N/A 11.0 ppb (8) N/A 17.0 μg/m3 (15) 7.0 μg/m3 (29) 29.0
 
Jan. 18, 2019, 1 p.m. 11.2 ppb (10) 4.0 ppb (4) N/A 7.0 ppb (6) N/A N/A 14.0 ppb (11) N/A 18.0 μg/m3 (16) 7.0 μg/m3 (29) 29.0
 
Jan. 18, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 8.0 μg/m3 (33) 33.0
 
Jan. 18, 2019, 11 a.m. 7.0 ppb (6) 1.7 ppb (2) N/A 5.0 ppb (5) N/A N/A 15.0 ppb (12) N/A 16.0 μg/m3 (15) 9.0 μg/m3 (38) 38.0
 
Jan. 18, 2019, 10 a.m. 8.1 ppb (8) 2.8 ppb (3) N/A 5.0 ppb (5) N/A N/A 18.0 ppb (14) N/A 18.0 μg/m3 (16) 7.0 μg/m3 (29) 29.0
 
Jan. 18, 2019, 9 a.m. 8.4 ppb (8) 2.7 ppb (3) N/A 6.0 ppb (6) N/A N/A 17.0 ppb (13) N/A 13.0 μg/m3 (12) 10.0 μg/m3 (42) 42.0
 
Jan. 18, 2019, 8 a.m. 6.6 ppb (6) 2.2 ppb (2) N/A 5.0 ppb (5) N/A N/A 21.0 ppb (16) N/A 9.0 μg/m3 (8) 4.0 μg/m3 (17) 17.0
 
Jan. 18, 2019, 7 a.m. 3.6 ppb (3) 1.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 27.0 ppb (21) N/A 9.0 μg/m3 (8) 5.0 μg/m3 (21) 21.0
 
Jan. 18, 2019, 6 a.m. 3.5 ppb (3) 1.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 29.0 ppb (22) N/A 13.0 μg/m3 (12) 7.0 μg/m3 (29) 29.0
 
Jan. 18, 2019, 5 a.m. 3.1 ppb (3) 1.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 28.0 ppb (22) N/A 16.0 μg/m3 (15) 7.0 μg/m3 (29) 29.0
 
Jan. 18, 2019, 4 a.m. 3.6 ppb (3) 1.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 29.0 ppb (22) N/A 14.0 μg/m3 (13) 7.0 μg/m3 (29) 29.0
 
Jan. 18, 2019, 3 a.m. 5.5 ppb (5) 1.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (22) N/A 14.0 μg/m3 (13) 8.0 μg/m3 (33) 33.0
 
Jan. 18, 2019, 2 a.m. 4.6 ppb (4) 1.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 31.0 ppb (24) N/A 11.0 μg/m3 (10) 7.0 μg/m3 (29) 29.0
 
Jan. 18, 2019, 1 a.m. 4.3 ppb (4) 1.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 34.0 ppb (26) N/A 11.0 μg/m3 (10) 9.0 μg/m3 (38) 38.0
 
Jan. 18, 2019, midnight 4.5 ppb (4) 1.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 33.0 ppb (25) N/A 14.0 μg/m3 (13) 8.0 μg/m3 (33) 33.0
 
Jan. 17, 2019, 11 p.m. 3.7 ppb (3) 1.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (26) N/A 11.0 μg/m3 (10) 9.0 μg/m3 (38) 38.0
 
Jan. 17, 2019, 10 p.m. 5.4 ppb (5) 1.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 31.0 ppb (24) N/A 19.0 μg/m3 (17) 8.0 μg/m3 (33) 33.0
 
Jan. 17, 2019, 9 p.m. 4.2 ppb (4) 1.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (25) N/A 15.0 μg/m3 (14) 7.0 μg/m3 (29) 29.0
 
Jan. 17, 2019, 8 p.m. 4.2 ppb (4) 1.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (25) N/A 10.0 μg/m3 (9) 7.0 μg/m3 (29) 29.0
 
Jan. 17, 2019, 7 p.m. 3.6 ppb (3) 1.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 32.0 ppb (25) N/A 12.0 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2019, 6 p.m. 4.2 ppb (4) 1.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 31.0 ppb (24) N/A 8.0 μg/m3 (7) 5.0 μg/m3 (21) 24.0
 
Jan. 17, 2019, 5 p.m. 3.8 ppb (4) 1.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 34.0 ppb (26) N/A 2.0 μg/m3 (2) 8.0 μg/m3 (33) 33.0
 
Jan. 17, 2019, 4 p.m. 4.5 ppb (4) 1.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 30.0 ppb (23) N/A 20.0 μg/m3 (18) 13.0 μg/m3 (52) 52.0
 
Jan. 17, 2019, 3 p.m. 4.1 ppb (4) 1.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 28.0 ppb (22) N/A 19.0 μg/m3 (17) 8.0 μg/m3 (33) 33.0
 
Jan. 17, 2019, 2 p.m. 4.1 ppb (4) 1.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 29.0 ppb (22) N/A 16.0 μg/m3 (15) 7.0 μg/m3 (29) 29.0
 
Jan. 17, 2019, 1 p.m. 3.8 ppb (4) 1.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 29.0 ppb (22) N/A 12.0 μg/m3 (11) 10.0 μg/m3 (42) 42.0
 
Jan. 17, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 7.0 μg/m3 (29) 29.0
 
Jan. 17, 2019, 11 a.m. 2.3 ppb (2) 1.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 29.0 ppb (22) N/A 24.0 μg/m3 (22) 10.0 μg/m3 (42) 42.0
 
Jan. 17, 2019, 10 a.m. 2.5 ppb (2) 1.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 27.0 ppb (21) N/A 14.0 μg/m3 (13) 7.0 μg/m3 (29) 29.0
 
Jan. 17, 2019, 9 a.m. 2.9 ppb (3) 1.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 25.0 ppb (19) N/A 7.0 μg/m3 (6) 9.0 μg/m3 (38) 38.0
 
Jan. 17, 2019, 8 a.m. 2.8 ppb (3) 1.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 26.0 ppb (20) N/A 4.0 μg/m3 (4) 10.0 μg/m3 (42) 42.0
 
Jan. 17, 2019, 7 a.m. 2.6 ppb (2) 1.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 27.0 ppb (21) N/A 1.0 μg/m3 (1) 5.0 μg/m3 (21) 21.0
 
Jan. 17, 2019, 6 a.m. 2.3 ppb (2) 1.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 28.0 ppb (22) N/A 3.0 μg/m3 (3) 2.0 μg/m3 (8) 22.0
 
Jan. 17, 2019, 5 a.m. 2.7 ppb (3) 1.4 ppb (1) N/A 1.0 ppb (1) N/A N/A 31.0 ppb (24) N/A 3.0 μg/m3 (3) 3.0 μg/m3 (12) 24.0
 
Jan. 17, 2019, 4 a.m. 2.5 ppb (2) 1.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 32.0 ppb (25) N/A 1.0 μg/m3 (1) 5.0 μg/m3 (21) 25.0
 
Jan. 17, 2019, 3 a.m. 2.5 ppb (2) 1.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 32.0 ppb (25) N/A 2.0 μg/m3 (2) 4.0 μg/m3 (17) 25.0
 
Jan. 17, 2019, 2 a.m. 3.1 ppb (3) 1.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 32.0 ppb (25) N/A -1.0 μg/m3 (0) 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2019, 1 a.m. 3.5 ppb (3) 1.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 32.0 ppb (25) N/A 2.0 μg/m3 (2) 5.0 μg/m3 (21) 25.0
 
Jan. 17, 2019, midnight 4.9 ppb (5) 1.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 27.0 ppb (21) N/A 3.0 μg/m3 (3) 4.0 μg/m3 (17) 21.0
 
Jan. 16, 2019, 11 p.m. 5.1 ppb (5) 1.3 ppb (1) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (20) N/A 0.0 μg/m3 (0) 4.0 μg/m3 (17) 20.0
 
Jan. 16, 2019, 10 p.m. 4.2 ppb (4) 1.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 28.0 ppb (22) N/A 3.0 μg/m3 (3) 5.0 μg/m3 (21) 22.0
 
Jan. 16, 2019, 9 p.m. 4.3 ppb (4) 1.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 27.0 ppb (21) N/A 4.0 μg/m3 (4) 4.0 μg/m3 (17) 21.0
 
Jan. 16, 2019, 8 p.m. 3.5 ppb (3) 1.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 29.0 ppb (22) N/A 5.0 μg/m3 (5) 4.0 μg/m3 (17) 22.0
 
Jan. 16, 2019, 7 p.m. 4.5 ppb (4) 1.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 27.0 ppb (21) N/A 8.0 μg/m3 (7) 3.0 μg/m3 (12) 21.0
 
Jan. 16, 2019, 6 p.m. 4.4 ppb (4) 1.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 27.0 ppb (21) N/A 9.0 μg/m3 (8) 2.0 μg/m3 (8) 21.0
 
Jan. 16, 2019, 5 p.m. 3.8 ppb (4) 1.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 26.0 ppb (20) N/A 3.0 μg/m3 (3) 4.0 μg/m3 (17) 20.0
 
Jan. 16, 2019, 4 p.m. 4.0 ppb (4) 1.2 ppb (1) N/A 3.0 ppb (3) N/A N/A 26.0 ppb (20) N/A 2.0 μg/m3 (2) 5.0 μg/m3 (21) 21.0
 
Jan. 16, 2019, 3 p.m. 4.1 ppb (4) 1.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 25.0 ppb (19) N/A 4.0 μg/m3 (4) 3.0 μg/m3 (12) 19.0
 
Jan. 16, 2019, 2 p.m. 3.5 ppb (3) 1.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 25.0 ppb (19) N/A 7.0 μg/m3 (6) 4.0 μg/m3 (17) 19.0
 
Jan. 16, 2019, 1 p.m. 3.7 ppb (3) 1.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 24.0 ppb (18) N/A 6.0 μg/m3 (5) 3.0 μg/m3 (12) 18.0
 
Jan. 16, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 4.0 μg/m3 (17) 17.0
 
Jan. 16, 2019, 11 a.m. 2.7 ppb (3) 1.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 26.0 ppb (20) N/A 4.0 μg/m3 (4) 7.0 μg/m3 (29) 29.0
 
Jan. 16, 2019, 10 a.m. 2.8 ppb (3) 1.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 25.0 ppb (19) N/A 5.0 μg/m3 (5) 5.0 μg/m3 (21) 21.0
 
Jan. 16, 2019, 9 a.m. 3.0 ppb (3) 1.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 25.0 ppb (19) N/A 3.0 μg/m3 (3) 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2019, 8 a.m. 3.1 ppb (3) 1.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 25.0 ppb (19) N/A 6.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2019, 7 a.m. 4.1 ppb (4) 1.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 24.0 ppb (18) N/A 7.0 μg/m3 (6) 8.0 μg/m3 (33) 33.0
 
Jan. 16, 2019, 6 a.m. 4.0 ppb (4) 1.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 25.0 ppb (19) N/A 8.0 μg/m3 (7) 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2019, 5 a.m. 3.8 ppb (4) 1.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 28.0 ppb (22) N/A 7.0 μg/m3 (6) 4.0 μg/m3 (17) 22.0
 
Jan. 16, 2019, 4 a.m. 3.8 ppb (4) 1.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 28.0 ppb (22) N/A 7.0 μg/m3 (6) 2.0 μg/m3 (8) 22.0
 
Jan. 16, 2019, 3 a.m. 7.3 ppb (7) 1.8 ppb (2) N/A 6.0 ppb (6) N/A N/A 21.0 ppb (16) N/A 3.0 μg/m3 (3) 4.0 μg/m3 (17) 17.0
 
Jan. 16, 2019, 2 a.m. 9.5 ppb (9) 2.7 ppb (3) N/A 7.0 ppb (6) N/A N/A 19.0 ppb (15) N/A 4.0 μg/m3 (4) 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2019, 1 a.m. 10.3 ppb (10) 2.6 ppb (2) N/A 8.0 ppb (7) N/A N/A 20.0 ppb (15) N/A 5.0 μg/m3 (5) 4.0 μg/m3 (17) 17.0
 
Jan. 16, 2019, midnight 9.7 ppb (9) 2.0 ppb (2) N/A 8.0 ppb (7) N/A N/A 22.0 ppb (17) N/A 3.0 μg/m3 (3) 6.0 μg/m3 (25) 25.0
 
Jan. 15, 2019, 11 p.m. 7.6 ppb (7) 2.2 ppb (2) N/A 5.0 ppb (5) N/A N/A 26.0 ppb (20) N/A 4.0 μg/m3 (4) N/A 20.0
 
Jan. 15, 2019, 10 p.m. 10.0 ppb (9) 2.6 ppb (2) N/A 7.0 ppb (6) N/A N/A 23.0 ppb (18) N/A 7.0 μg/m3 (6) 7.0 μg/m3 (29) 29.0
 
Jan. 15, 2019, 9 p.m. 7.7 ppb (7) 2.2 ppb (2) N/A 6.0 ppb (6) N/A N/A 23.0 ppb (18) N/A 5.0 μg/m3 (5) 7.0 μg/m3 (29) 29.0
 
Jan. 15, 2019, 8 p.m. 8.5 ppb (8) 2.9 ppb (3) N/A 6.0 ppb (6) N/A N/A 22.0 ppb (17) N/A 8.0 μg/m3 (7) 7.0 μg/m3 (29) 29.0
 
Jan. 15, 2019, 7 p.m. 8.2 ppb (8) 2.5 ppb (2) N/A 6.0 ppb (6) N/A N/A 22.0 ppb (17) N/A 11.0 μg/m3 (10) 6.0 μg/m3 (25) 25.0
 
Jan. 15, 2019, 6 p.m. 8.6 ppb (8) 2.6 ppb (2) N/A 6.0 ppb (6) N/A N/A 22.0 ppb (17) N/A 5.0 μg/m3 (5) 7.0 μg/m3 (29) 29.0
 
Jan. 15, 2019, 5 p.m. 11.6 ppb (11) 3.0 ppb (3) N/A 9.0 ppb (8) N/A N/A 17.0 ppb (13) N/A 7.0 μg/m3 (6) 8.0 μg/m3 (33) 33.0
 
Jan. 15, 2019, 4 p.m. 24.9 ppb (23) 9.0 ppb (8) N/A 16.0 ppb (15) N/A N/A 9.0 ppb (7) N/A 10.0 μg/m3 (9) 9.0 μg/m3 (38) 38.0
 
Jan. 15, 2019, 3 p.m. 24.8 ppb (23) 7.1 ppb (7) N/A 18.0 ppb (17) N/A N/A 3.0 ppb (2) N/A 7.0 μg/m3 (6) 7.0 μg/m3 (29) 29.0
 
Jan. 15, 2019, 2 p.m. 29.0 ppb (27) 9.4 ppb (9) N/A 20.0 ppb (19) N/A N/A 1.0 ppb (1) N/A 6.0 μg/m3 (5) 6.0 μg/m3 (25) 27.0
 
Jan. 15, 2019, 1 p.m. 16.9 ppb (16) 5.7 ppb (5) N/A 11.0 ppb (10) N/A N/A 11.0 ppb (8) N/A 6.0 μg/m3 (5) 8.0 μg/m3 (33) 33.0
 
Jan. 15, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 7.0 μg/m3 (29) 29.0
 
Jan. 15, 2019, 11 a.m. 11.2 ppb (10) 3.0 ppb (3) N/A 8.0 ppb (7) N/A N/A 15.0 ppb (12) N/A 6.0 μg/m3 (5) 9.0 μg/m3 (38) 38.0
 
Jan. 15, 2019, 10 a.m. 9.6 ppb (9) 2.3 ppb (2) N/A 7.0 ppb (6) N/A N/A 14.0 ppb (11) N/A 7.0 μg/m3 (6) 11.0 μg/m3 (46) 46.0
 
Jan. 15, 2019, 9 a.m. 5.7 ppb (5) 1.7 ppb (2) N/A 4.0 ppb (4) N/A N/A 18.0 ppb (14) N/A 7.0 μg/m3 (6) 10.0 μg/m3 (42) 42.0
 
Jan. 15, 2019, 8 a.m. 5.1 ppb (5) 1.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 17.0 ppb (13) N/A 9.0 μg/m3 (8) 8.0 μg/m3 (33) 33.0
 
Jan. 15, 2019, 7 a.m. 6.2 ppb (6) 1.5 ppb (1) N/A 5.0 ppb (5) N/A N/A 14.0 ppb (11) N/A 11.0 μg/m3 (10) 12.0 μg/m3 (50) 50.0
 
Jan. 15, 2019, 6 a.m. 7.1 ppb (7) 1.7 ppb (2) N/A 5.0 ppb (5) N/A N/A 12.0 ppb (9) N/A 15.0 μg/m3 (14) 10.0 μg/m3 (42) 42.0
 
Jan. 15, 2019, 5 a.m. 12.8 ppb (12) 3.2 ppb (3) N/A 10.0 ppb (9) N/A N/A 6.0 ppb (5) N/A 17.0 μg/m3 (15) 13.0 μg/m3 (52) 52.0
 
Jan. 15, 2019, 4 a.m. 24.9 ppb (23) 8.0 ppb (7) N/A 17.0 ppb (16) N/A N/A 2.0 ppb (2) N/A 20.0 μg/m3 (18) 17.0 μg/m3 (61) 61.0
 
Jan. 15, 2019, 3 a.m. 23.9 ppb (22) 6.7 ppb (6) N/A 17.0 ppb (16) N/A N/A 4.0 ppb (3) N/A 15.0 μg/m3 (14) 12.0 μg/m3 (50) 50.0
 
Jan. 15, 2019, 2 a.m. 22.1 ppb (20) 5.1 ppb (5) N/A 17.0 ppb (16) N/A N/A 4.0 ppb (3) N/A 22.0 μg/m3 (20) 14.0 μg/m3 (54) 54.0
 
Jan. 15, 2019, 1 a.m. 20.1 ppb (19) 4.6 ppb (4) N/A 16.0 ppb (15) N/A N/A 8.0 ppb (6) N/A 16.0 μg/m3 (15) 15.0 μg/m3 (56) 56.0
 
Jan. 15, 2019, midnight 22.1 ppb (20) 6.7 ppb (6) N/A 15.0 ppb (14) N/A N/A 5.0 ppb (4) N/A 16.0 μg/m3 (15) 13.0 μg/m3 (52) 52.0
 
Jan. 14, 2019, 11 p.m. 12.5 ppb (12) 3.1 ppb (3) N/A 9.0 ppb (8) N/A N/A 14.0 ppb (11) N/A 22.0 μg/m3 (20) 10.0 μg/m3 (42) 42.0
 
Jan. 14, 2019, 10 p.m. 8.9 ppb (8) 2.4 ppb (2) N/A 7.0 ppb (6) N/A N/A 18.0 ppb (14) N/A 14.0 μg/m3 (13) 9.0 μg/m3 (38) 38.0
 
Jan. 14, 2019, 9 p.m. 10.9 ppb (10) 4.4 ppb (4) N/A 7.0 ppb (6) N/A N/A 14.0 ppb (11) N/A 14.0 μg/m3 (13) 7.0 μg/m3 (29) 29.0
 
Jan. 14, 2019, 8 p.m. 15.6 ppb (14) 5.5 ppb (5) N/A 10.0 ppb (9) N/A N/A 11.0 ppb (8) N/A 21.0 μg/m3 (19) 8.0 μg/m3 (33) 33.0
 
Jan. 14, 2019, 7 p.m. 10.3 ppb (10) 3.5 ppb (3) N/A 7.0 ppb (6) N/A N/A 17.0 ppb (13) N/A N/A N/A 13.0
 
Jan. 14, 2019, 6 p.m. 8.8 ppb (8) 3.7 ppb (3) N/A 5.0 ppb (5) N/A N/A 16.0 ppb (12) N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 14, 2019, 5 p.m. 10.3 ppb (10) 3.9 ppb (4) N/A 6.0 ppb (6) N/A N/A 10.0 ppb (8) N/A N/A 13.0 μg/m3 (52) 52.0
 
Jan. 14, 2019, 4 p.m. 10.8 ppb (10) 4.2 ppb (4) N/A 7.0 ppb (6) N/A N/A 9.0 ppb (7) N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 14, 2019, 3 p.m. 18.5 ppb (17) 7.9 ppb (7) N/A 11.0 ppb (10) N/A N/A 5.0 ppb (4) N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 14, 2019, 2 p.m. 17.0 ppb (16) 6.4 ppb (6) N/A 11.0 ppb (10) N/A N/A 4.0 ppb (3) N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 14, 2019, 1 p.m. 16.7 ppb (15) 6.6 ppb (6) N/A 10.0 ppb (9) N/A N/A 1.0 ppb (1) N/A N/A 17.0 μg/m3 (61) 61.0
 
Jan. 14, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (63) 63.0
 
Jan. 14, 2019, 11 a.m. 17.3 ppb (16) 6.5 ppb (6) N/A 11.0 ppb (10) N/A N/A 2.0 ppb (2) N/A N/A 16.0 μg/m3 (59) 59.0
 
Jan. 14, 2019, 10 a.m. 10.6 ppb (10) 3.6 ppb (3) N/A 7.0 ppb (6) N/A N/A 4.0 ppb (3) N/A N/A 16.0 μg/m3 (59) 59.0
 
Jan. 14, 2019, 9 a.m. 20.7 ppb (19) 9.4 ppb (9) N/A 11.0 ppb (10) N/A N/A 1.0 ppb (1) N/A N/A 23.0 μg/m3 (73) 73.0
 
Jan. 14, 2019, 8 a.m. 37.4 ppb (35) 23.7 ppb (22) N/A 14.0 ppb (13) N/A N/A 0.0 ppb (0) N/A N/A 31.0 μg/m3 (90) 90.0
 
Jan. 14, 2019, 7 a.m. 55.4 ppb (51) 37.8 ppb (35) N/A 18.0 ppb (17) N/A N/A 0.0 ppb (0) N/A N/A 31.0 μg/m3 (90) 90.0
 
Jan. 14, 2019, 6 a.m. 52.4 ppb (49) 33.8 ppb (31) N/A 19.0 ppb (18) N/A N/A 0.0 ppb (0) N/A N/A 27.0 μg/m3 (82) 82.0
 
Jan. 14, 2019, 5 a.m. 39.6 ppb (37) 20.0 ppb (19) N/A 20.0 ppb (19) N/A N/A 1.0 ppb (1) N/A N/A 25.0 μg/m3 (78) 78.0
 
Jan. 14, 2019, 4 a.m. 33.9 ppb (31) 14.5 ppb (13) N/A 20.0 ppb (19) N/A N/A 2.0 ppb (2) N/A N/A 20.0 μg/m3 (67) 67.0
 
Jan. 14, 2019, 3 a.m. 45.3 ppb (42) 24.0 ppb (22) N/A 21.0 ppb (19) N/A N/A 1.0 ppb (1) N/A N/A 28.0 μg/m3 (84) 84.0
 
Jan. 14, 2019, 2 a.m. 52.5 ppb (49) 27.5 ppb (25) N/A 25.0 ppb (23) N/A N/A 0.0 ppb (0) N/A N/A 53.0 μg/m3 (144) 144.0
 
Jan. 14, 2019, 1 a.m. 23.2 ppb (21) 4.1 ppb (4) N/A 19.0 ppb (18) N/A N/A 8.0 ppb (6) N/A N/A 14.0 μg/m3 (54) 54.0
 
Jan. 14, 2019, midnight 8.7 ppb (8) 2.3 ppb (2) N/A 6.0 ppb (6) N/A N/A 26.0 ppb (20) N/A N/A 14.0 μg/m3 (54) 54.0
 
Jan. 13, 2019, 11 p.m. 5.7 ppb (5) 1.9 ppb (2) N/A 4.0 ppb (4) N/A N/A 27.0 ppb (21) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 13, 2019, 10 p.m. 4.4 ppb (4) 1.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 29.0 ppb (22) N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 13, 2019, 9 p.m. 4.3 ppb (4) 1.8 ppb (2) N/A 3.0 ppb (3) N/A N/A 29.0 ppb (22) N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 13, 2019, 8 p.m. 5.8 ppb (5) 2.7 ppb (3) N/A 3.0 ppb (3) N/A N/A 25.0 ppb (19) N/A N/A 4.0 μg/m3 (17) 19.0
 
Jan. 13, 2019, 7 p.m. 7.0 ppb (6) 2.9 ppb (3) N/A 4.0 ppb (4) N/A N/A 20.0 ppb (15) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 13, 2019, 6 p.m. 9.0 ppb (8) 4.3 ppb (4) N/A 5.0 ppb (5) N/A N/A 15.0 ppb (12) N/A N/A 12.0 μg/m3 (50) 50.0
 
Jan. 13, 2019, 5 p.m. 10.1 ppb (9) 4.5 ppb (4) N/A 6.0 ppb (6) N/A N/A 11.0 ppb (8) N/A N/A 15.0 μg/m3 (56) 56.0
 
Jan. 13, 2019, 4 p.m. 26.1 ppb (24) 15.7 ppb (15) N/A 10.0 ppb (9) N/A N/A 5.0 ppb (4) N/A N/A 16.0 μg/m3 (59) 59.0
 
Jan. 13, 2019, 3 p.m. 26.5 ppb (25) 13.3 ppb (12) N/A 13.0 ppb (12) N/A N/A 1.0 ppb (1) N/A N/A 16.0 μg/m3 (59) 59.0
 
Jan. 13, 2019, 2 p.m. 17.7 ppb (16) 5.9 ppb (5) N/A 12.0 ppb (11) N/A N/A 3.0 ppb (2) N/A N/A 17.0 μg/m3 (61) 61.0
 
Jan. 13, 2019, 1 p.m. 10.7 ppb (10) 3.4 ppb (3) N/A 7.0 ppb (6) N/A N/A 6.0 ppb (5) N/A N/A 12.0 μg/m3 (50) 50.0
 
Jan. 13, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (61) 61.0
 
Jan. 13, 2019, 11 a.m. 33.7 ppb (31) 22.1 ppb (20) N/A 12.0 ppb (11) N/A N/A 0.0 ppb (0) N/A N/A 21.0 μg/m3 (69) 69.0
 
Jan. 13, 2019, 10 a.m. 36.4 ppb (34) 21.9 ppb (20) N/A 15.0 ppb (14) N/A N/A 0.0 ppb (0) N/A N/A 22.0 μg/m3 (71) 71.0
 
Jan. 13, 2019, 9 a.m. 34.5 ppb (32) 18.6 ppb (17) N/A 16.0 ppb (15) N/A N/A 0.0 ppb (0) N/A N/A 28.0 μg/m3 (84) 84.0
 
Jan. 13, 2019, 8 a.m. 27.9 ppb (26) 13.0 ppb (12) N/A 15.0 ppb (14) N/A N/A 2.0 ppb (2) N/A N/A 18.0 μg/m3 (63) 63.0
 
Jan. 13, 2019, 7 a.m. 17.3 ppb (16) 4.7 ppb (4) N/A 13.0 ppb (12) N/A N/A 7.0 ppb (5) N/A N/A 23.0 μg/m3 (73) 73.0
 
Jan. 13, 2019, 6 a.m. 13.4 ppb (12) 2.6 ppb (2) N/A 11.0 ppb (10) N/A N/A 9.0 ppb (7) N/A N/A 15.0 μg/m3 (56) 56.0
 
Jan. 13, 2019, 5 a.m. 15.6 ppb (14) 3.8 ppb (4) N/A 12.0 ppb (11) N/A N/A 8.0 ppb (6) N/A N/A 19.0 μg/m3 (65) 65.0
 
Jan. 13, 2019, 4 a.m. 18.2 ppb (17) 4.7 ppb (4) N/A 14.0 ppb (13) N/A N/A 7.0 ppb (5) N/A N/A 23.0 μg/m3 (73) 73.0
 
Jan. 13, 2019, 3 a.m. 33.1 ppb (31) 12.6 ppb (12) N/A 21.0 ppb (19) N/A N/A 3.0 ppb (2) N/A N/A 23.0 μg/m3 (73) 73.0
 
Jan. 13, 2019, 2 a.m. 49.9 ppb (46) 26.6 ppb (25) N/A 23.0 ppb (21) N/A N/A 0.0 ppb (0) N/A N/A 32.0 μg/m3 (93) 93.0
 
Jan. 13, 2019, 1 a.m. 21.3 ppb (20) 4.6 ppb (4) N/A 17.0 ppb (16) N/A N/A 9.0 ppb (7) N/A N/A 17.0 μg/m3 (61) 61.0
 
Jan. 13, 2019, midnight 6.8 ppb (6) 1.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 25.0 ppb (19) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 12, 2019, 11 p.m. 4.8 ppb (4) 1.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 26.0 ppb (20) N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 12, 2019, 10 p.m. 5.0 ppb (5) 1.8 ppb (2) N/A 3.0 ppb (3) N/A N/A 25.0 ppb (19) N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 12, 2019, 9 p.m. 4.9 ppb (5) 2.1 ppb (2) N/A 3.0 ppb (3) N/A N/A 27.0 ppb (21) N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 12, 2019, 8 p.m. 7.3 ppb (7) 3.0 ppb (3) N/A 4.0 ppb (4) N/A N/A 21.0 ppb (16) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 12, 2019, 7 p.m. 10.2 ppb (9) 4.8 ppb (4) N/A 5.0 ppb (5) N/A N/A 14.0 ppb (11) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 12, 2019, 6 p.m. 9.4 ppb (9) 4.8 ppb (4) N/A 5.0 ppb (5) N/A N/A 9.0 ppb (7) N/A N/A 5.0 μg/m3 (21) 21.0