AQSQID: 060610006

Site Name: Roseville - N.Sunrise/Douglas

Location: Roseville, CA

Reporting: True, Located: True

Current AQI: 21.0

Roseville CA, US: 38.7458, -121.2653

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 16, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 5.0 μg/m3 (21) 21.0
 
Jan. 16, 2019, 11 a.m. 2.1 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (23) N/A 2.0 μg/m3 (2) 2.0 μg/m3 (8) 23.0
 
Jan. 16, 2019, 10 a.m. 1.8 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 32.0 ppb (25) N/A 2.0 μg/m3 (2) 3.0 μg/m3 (12) 25.0
 
Jan. 16, 2019, 9 a.m. 1.2 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 31.0 ppb (24) N/A 4.0 μg/m3 (4) 5.0 μg/m3 (21) 24.0
 
Jan. 16, 2019, 8 a.m. 1.4 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 33.0 ppb (25) N/A 3.0 μg/m3 (3) 1.0 μg/m3 (4) 25.0
 
Jan. 16, 2019, 7 a.m. 1.6 ppb (1) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A N/A 2.0 μg/m3 (2) 2.0 μg/m3 (8) 8.0
 
Jan. 16, 2019, 6 a.m. 1.8 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A N/A 6.0 μg/m3 (5) 2.0 μg/m3 (8) 8.0
 
Jan. 16, 2019, 5 a.m. 1.0 ppb (1) -0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 36.0 ppb (28) N/A 6.0 μg/m3 (5) 2.0 μg/m3 (8) 28.0
 
Jan. 16, 2019, 4 a.m. 2.0 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (28) N/A 3.0 μg/m3 (3) 1.0 μg/m3 (4) 28.0
 
Jan. 16, 2019, 3 a.m. 2.3 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (28) N/A 6.0 μg/m3 (5) 2.0 μg/m3 (8) 28.0
 
Jan. 16, 2019, 2 a.m. 3.3 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 34.0 ppb (26) N/A 6.0 μg/m3 (5) 4.0 μg/m3 (17) 26.0
 
Jan. 16, 2019, 1 a.m. 6.4 ppb (6) 0.2 ppb (0) N/A 6.0 ppb (6) N/A N/A 29.0 ppb (22) N/A 4.0 μg/m3 (4) 5.0 μg/m3 (21) 22.0
 
Jan. 16, 2019, midnight 9.0 ppb (8) 0.6 ppb (1) N/A 8.0 ppb (7) N/A N/A 24.0 ppb (18) N/A 2.0 μg/m3 (2) 3.0 μg/m3 (12) 18.0
 
Jan. 15, 2019, 11 p.m. 7.3 ppb (7) 0.3 ppb (0) N/A 7.0 ppb (6) N/A N/A 28.0 ppb (22) N/A 2.0 μg/m3 (2) 2.0 μg/m3 (8) 22.0
 
Jan. 15, 2019, 10 p.m. 6.2 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 31.0 ppb (24) N/A 4.0 μg/m3 (4) 4.0 μg/m3 (17) 24.0
 
Jan. 15, 2019, 9 p.m. 7.3 ppb (7) 0.9 ppb (1) N/A 6.0 ppb (6) N/A N/A 30.0 ppb (23) N/A 4.0 μg/m3 (4) 6.0 μg/m3 (25) 25.0
 
Jan. 15, 2019, 8 p.m. 7.4 ppb (7) 1.1 ppb (1) N/A 6.0 ppb (6) N/A N/A 30.0 ppb (23) N/A 4.0 μg/m3 (4) 2.0 μg/m3 (8) 23.0
 
Jan. 15, 2019, 7 p.m. 7.4 ppb (7) 1.4 ppb (1) N/A 6.0 ppb (6) N/A N/A 29.0 ppb (22) N/A 1.0 μg/m3 (1) 3.0 μg/m3 (12) 22.0
 
Jan. 15, 2019, 6 p.m. 6.8 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 26.0 ppb (20) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 15, 2019, 5 p.m. 10.2 ppb (9) 1.0 ppb (1) N/A 9.0 ppb (8) N/A N/A 21.0 ppb (16) N/A N/A N/A 16.0
 
Jan. 15, 2019, 4 p.m. 9.5 ppb (9) 2.1 ppb (2) N/A 7.0 ppb (6) N/A N/A 26.0 ppb (20) N/A 3.0 μg/m3 (3) -1.0 μg/m3 (0) 20.0
 
Jan. 15, 2019, 3 p.m. 15.2 ppb (14) 4.3 ppb (4) N/A 11.0 ppb (10) N/A N/A 24.0 ppb (18) N/A 6.0 μg/m3 (5) -1.0 μg/m3 (0) 18.0
 
Jan. 15, 2019, 2 p.m. 12.6 ppb (12) 2.6 ppb (2) N/A 10.0 ppb (9) N/A N/A 19.0 ppb (15) N/A 4.0 μg/m3 (4) 1.0 μg/m3 (4) 15.0
 
Jan. 15, 2019, 1 p.m. 8.1 ppb (8) 0.3 ppb (0) N/A 8.0 ppb (7) N/A N/A 18.0 ppb (14) N/A 4.0 μg/m3 (4) 0.0 μg/m3 (0) 14.0
 
Jan. 15, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 0.0 μg/m3 (0) 5.0
 
Jan. 15, 2019, 11 a.m. 11.9 ppb (11) 4.5 ppb (4) N/A 7.0 ppb (6) N/A N/A 20.0 ppb (15) N/A 3.0 μg/m3 (3) 1.0 μg/m3 (4) 15.0
 
Jan. 15, 2019, 10 a.m. 2.8 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 27.0 ppb (21) N/A 2.0 μg/m3 (2) 2.0 μg/m3 (8) 21.0
 
Jan. 15, 2019, 9 a.m. 3.0 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 28.0 ppb (22) N/A 5.0 μg/m3 (5) 4.0 μg/m3 (17) 22.0
 
Jan. 15, 2019, 8 a.m. 2.7 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 28.0 ppb (22) N/A 6.0 μg/m3 (5) 5.0 μg/m3 (21) 22.0
 
Jan. 15, 2019, 7 a.m. 2.4 ppb (2) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 28.0 ppb (22) N/A 6.0 μg/m3 (5) 3.0 μg/m3 (12) 22.0
 
Jan. 15, 2019, 6 a.m. 2.5 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (23) N/A 7.0 μg/m3 (6) 2.0 μg/m3 (8) 23.0
 
Jan. 15, 2019, 5 a.m. 3.5 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 26.0 ppb (20) N/A 7.0 μg/m3 (6) 7.0 μg/m3 (29) 29.0
 
Jan. 15, 2019, 4 a.m. 7.9 ppb (7) 0.6 ppb (1) N/A 7.0 ppb (6) N/A N/A 19.0 ppb (15) N/A 16.0 μg/m3 (15) 11.0 μg/m3 (46) 46.0
 
Jan. 15, 2019, 3 a.m. 8.0 ppb (7) 0.2 ppb (0) N/A 8.0 ppb (7) N/A N/A 17.0 ppb (13) N/A 13.0 μg/m3 (12) 8.0 μg/m3 (33) 33.0
 
Jan. 15, 2019, 2 a.m. 7.9 ppb (7) 0.5 ppb (0) N/A 8.0 ppb (7) N/A N/A 20.0 ppb (15) N/A 18.0 μg/m3 (16) 6.0 μg/m3 (25) 25.0
 
Jan. 15, 2019, 1 a.m. 7.6 ppb (7) 0.6 ppb (1) N/A 7.0 ppb (6) N/A N/A 21.0 ppb (16) N/A 15.0 μg/m3 (14) 3.0 μg/m3 (12) 16.0
 
Jan. 15, 2019, midnight 11.2 ppb (10) 1.3 ppb (1) N/A 10.0 ppb (9) N/A N/A 22.0 ppb (17) N/A 15.0 μg/m3 (14) 4.0 μg/m3 (17) 17.0
 
Jan. 14, 2019, 11 p.m. 18.3 ppb (17) 2.4 ppb (2) N/A 16.0 ppb (15) N/A N/A 15.0 ppb (12) N/A 13.0 μg/m3 (12) 6.0 μg/m3 (25) 25.0
 
Jan. 14, 2019, 10 p.m. 26.8 ppb (25) 7.4 ppb (7) N/A 19.0 ppb (18) N/A N/A 9.0 ppb (7) N/A 13.0 μg/m3 (12) 6.0 μg/m3 (25) 25.0
 
Jan. 14, 2019, 9 p.m. 25.4 ppb (24) 7.9 ppb (7) N/A 18.0 ppb (17) N/A N/A 13.0 ppb (10) N/A 11.0 μg/m3 (10) 6.0 μg/m3 (25) 25.0
 
Jan. 14, 2019, 8 p.m. 16.4 ppb (15) 3.6 ppb (3) N/A 13.0 ppb (12) N/A N/A 16.0 ppb (12) N/A 9.0 μg/m3 (8) 7.0 μg/m3 (29) 29.0
 
Jan. 14, 2019, 7 p.m. 31.2 ppb (29) 11.2 ppb (10) N/A 20.0 ppb (19) N/A N/A 7.0 ppb (5) N/A 15.0 μg/m3 (14) 9.0 μg/m3 (38) 38.0
 
Jan. 14, 2019, 6 p.m. 35.6 ppb (33) 16.6 ppb (15) N/A 19.0 ppb (18) N/A N/A 6.0 ppb (5) N/A 11.0 μg/m3 (10) 11.0 μg/m3 (46) 46.0
 
Jan. 14, 2019, 5 p.m. 55.3 ppb (51) 33.5 ppb (31) N/A 22.0 ppb (20) N/A N/A 3.0 ppb (2) N/A 20.0 μg/m3 (18) 11.0 μg/m3 (46) 51.0
 
Jan. 14, 2019, 4 p.m. 55.3 ppb (51) 34.4 ppb (32) N/A 21.0 ppb (19) N/A N/A 1.0 ppb (1) N/A 16.0 μg/m3 (15) 11.0 μg/m3 (46) 51.0
 
Jan. 14, 2019, 3 p.m. 60.7 ppb (57) 38.8 ppb (36) N/A 22.0 ppb (20) N/A N/A 0.0 ppb (0) N/A 22.0 μg/m3 (20) 8.0 μg/m3 (33) 57.0
 
Jan. 14, 2019, 2 p.m. 50.1 ppb (46) 28.7 ppb (27) N/A 21.0 ppb (19) N/A N/A -1.0 ppb (0) N/A 11.0 μg/m3 (10) 7.0 μg/m3 (29) 46.0
 
Jan. 14, 2019, 1 p.m. 31.2 ppb (29) 10.7 ppb (10) N/A 21.0 ppb (19) N/A N/A 1.0 ppb (1) N/A 12.0 μg/m3 (11) 6.0 μg/m3 (25) 29.0
 
Jan. 14, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 7.0 μg/m3 (29) 29.0
 
Jan. 14, 2019, 11 a.m. 9.0 ppb (8) 2.2 ppb (2) N/A 7.0 ppb (6) N/A N/A 13.0 ppb (10) N/A 8.0 μg/m3 (7) 5.0 μg/m3 (21) 21.0
 
Jan. 14, 2019, 10 a.m. 3.8 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 17.0 ppb (13) N/A 9.0 μg/m3 (8) 7.0 μg/m3 (29) 29.0
 
Jan. 14, 2019, 9 a.m. 7.0 ppb (6) 0.7 ppb (1) N/A 6.0 ppb (6) N/A N/A 12.0 ppb (9) N/A 10.0 μg/m3 (9) 10.0 μg/m3 (42) 42.0
 
Jan. 14, 2019, 8 a.m. 18.5 ppb (17) 4.9 ppb (5) N/A 14.0 ppb (13) N/A N/A 1.0 ppb (1) N/A 24.0 μg/m3 (22) 22.0 μg/m3 (71) 71.0
 
Jan. 14, 2019, 7 a.m. 21.1 ppb (20) 5.2 ppb (5) N/A 16.0 ppb (15) N/A N/A 1.0 ppb (1) N/A 20.0 μg/m3 (18) 17.0 μg/m3 (61) 61.0
 
Jan. 14, 2019, 6 a.m. 10.3 ppb (10) 0.8 ppb (1) N/A 10.0 ppb (9) N/A N/A 10.0 ppb (8) N/A 20.0 μg/m3 (18) 13.0 μg/m3 (52) 52.0
 
Jan. 14, 2019, 5 a.m. 30.4 ppb (28) 10.7 ppb (10) N/A 20.0 ppb (19) N/A N/A 1.0 ppb (1) N/A 31.0 μg/m3 (28) 28.0 μg/m3 (84) 84.0
 
Jan. 14, 2019, 4 a.m. 37.6 ppb (35) 12.2 ppb (11) N/A 25.0 ppb (23) N/A N/A 0.0 ppb (0) N/A 34.0 μg/m3 (31) 26.0 μg/m3 (80) 80.0
 
Jan. 14, 2019, 3 a.m. 28.9 ppb (27) 5.0 ppb (5) N/A 24.0 ppb (22) N/A N/A 5.0 ppb (4) N/A 27.0 μg/m3 (25) 15.0 μg/m3 (56) 56.0
 
Jan. 14, 2019, 2 a.m. 25.6 ppb (24) 2.7 ppb (3) N/A 23.0 ppb (21) N/A N/A 9.0 ppb (7) N/A 18.0 μg/m3 (16) 9.0 μg/m3 (38) 38.0
 
Jan. 14, 2019, 1 a.m. 16.0 ppb (15) 1.4 ppb (1) N/A 15.0 ppb (14) N/A N/A 21.0 ppb (16) N/A 11.0 μg/m3 (10) 5.0 μg/m3 (21) 21.0
 
Jan. 14, 2019, midnight 7.8 ppb (7) 0.8 ppb (1) N/A 7.0 ppb (6) N/A N/A 31.0 ppb (24) N/A 8.0 μg/m3 (7) 4.0 μg/m3 (17) 24.0
 
Jan. 13, 2019, 11 p.m. 6.2 ppb (6) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 33.0 ppb (25) N/A 5.0 μg/m3 (5) 3.0 μg/m3 (12) 25.0
 
Jan. 13, 2019, 10 p.m. 5.0 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (28) N/A 8.0 μg/m3 (7) 2.0 μg/m3 (8) 28.0
 
Jan. 13, 2019, 9 p.m. 5.0 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (28) N/A 8.0 μg/m3 (7) 2.0 μg/m3 (8) 28.0
 
Jan. 13, 2019, 8 p.m. 5.5 ppb (5) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 32.0 ppb (25) N/A 7.0 μg/m3 (6) 5.0 μg/m3 (21) 25.0
 
Jan. 13, 2019, 7 p.m. 10.5 ppb (10) 2.7 ppb (3) N/A 8.0 ppb (7) N/A N/A 22.0 ppb (17) N/A 9.0 μg/m3 (8) 7.0 μg/m3 (29) 29.0
 
Jan. 13, 2019, 6 p.m. 15.6 ppb (14) 5.2 ppb (5) N/A 11.0 ppb (10) N/A N/A 14.0 ppb (11) N/A 12.0 μg/m3 (11) 7.0 μg/m3 (29) 29.0
 
Jan. 13, 2019, 5 p.m. 18.7 ppb (17) 7.7 ppb (7) N/A 11.0 ppb (10) N/A N/A 10.0 ppb (8) N/A 14.0 μg/m3 (13) 4.0 μg/m3 (17) 17.0
 
Jan. 13, 2019, 4 p.m. 21.1 ppb (20) 9.2 ppb (9) N/A 12.0 ppb (11) N/A N/A 5.0 ppb (4) N/A 10.0 μg/m3 (9) 5.0 μg/m3 (21) 21.0
 
Jan. 13, 2019, 3 p.m. 26.1 ppb (24) 11.6 ppb (11) N/A 14.0 ppb (13) N/A N/A 0.0 ppb (0) N/A 7.0 μg/m3 (6) 6.0 μg/m3 (25) 25.0
 
Jan. 13, 2019, 2 p.m. 25.8 ppb (24) 12.7 ppb (12) N/A 13.0 ppb (12) N/A N/A 2.0 ppb (2) N/A 16.0 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
Jan. 13, 2019, 1 p.m. 6.0 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 9.0 ppb (7) N/A 7.0 μg/m3 (6) 5.0 μg/m3 (21) 21.0
 
Jan. 13, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 9.0 μg/m3 (38) 38.0
 
Jan. 13, 2019, 11 a.m. 7.5 ppb (7) 0.4 ppb (0) N/A 7.0 ppb (6) N/A N/A 10.0 ppb (8) N/A 10.0 μg/m3 (9) 8.0 μg/m3 (33) 33.0
 
Jan. 13, 2019, 10 a.m. 6.1 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A 12.0 ppb (9) N/A 19.0 μg/m3 (17) 8.0 μg/m3 (33) 33.0
 
Jan. 13, 2019, 9 a.m. 3.2 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 16.0 ppb (12) N/A 10.0 μg/m3 (9) 9.0 μg/m3 (38) 38.0
 
Jan. 13, 2019, 8 a.m. 3.5 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 18.0 ppb (14) N/A 13.0 μg/m3 (12) 10.0 μg/m3 (42) 42.0
 
Jan. 13, 2019, 7 a.m. 3.8 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 19.0 ppb (15) N/A 12.0 μg/m3 (11) 8.0 μg/m3 (33) 33.0
 
Jan. 13, 2019, 6 a.m. 5.8 ppb (5) 0.2 ppb (0) N/A 6.0 ppb (6) N/A N/A 20.0 ppb (15) N/A 11.0 μg/m3 (10) 11.0 μg/m3 (46) 46.0
 
Jan. 13, 2019, 5 a.m. 9.6 ppb (9) 0.4 ppb (0) N/A 9.0 ppb (8) N/A N/A 20.0 ppb (15) N/A 16.0 μg/m3 (15) 11.0 μg/m3 (46) 46.0
 
Jan. 13, 2019, 4 a.m. 13.1 ppb (12) 0.6 ppb (1) N/A 13.0 ppb (12) N/A N/A 20.0 ppb (15) N/A 11.0 μg/m3 (10) 12.0 μg/m3 (50) 50.0
 
Jan. 13, 2019, 3 a.m. 12.9 ppb (12) 0.5 ppb (0) N/A 12.0 ppb (11) N/A N/A 21.0 ppb (16) N/A 12.0 μg/m3 (11) 11.0 μg/m3 (46) 46.0
 
Jan. 13, 2019, 2 a.m. 12.6 ppb (12) 0.3 ppb (0) N/A 12.0 ppb (11) N/A N/A 22.0 ppb (17) N/A 19.0 μg/m3 (17) 11.0 μg/m3 (46) 46.0
 
Jan. 13, 2019, 1 a.m. 11.4 ppb (11) 0.7 ppb (1) N/A 11.0 ppb (10) N/A N/A 24.0 ppb (18) N/A 12.0 μg/m3 (11) 8.0 μg/m3 (33) 33.0
 
Jan. 13, 2019, midnight 5.3 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 34.0 ppb (26) N/A 10.0 μg/m3 (9) 4.0 μg/m3 (17) 26.0
 
Jan. 12, 2019, 11 p.m. 5.0 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (28) N/A 7.0 μg/m3 (6) 4.0 μg/m3 (17) 28.0
 
Jan. 12, 2019, 10 p.m. 4.9 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (26) N/A 8.0 μg/m3 (7) 6.0 μg/m3 (25) 26.0
 
Jan. 12, 2019, 9 p.m. 5.0 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 32.0 ppb (25) N/A 10.0 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
Jan. 12, 2019, 8 p.m. 6.0 ppb (6) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 28.0 ppb (22) N/A 10.0 μg/m3 (9) 4.0 μg/m3 (17) 22.0
 
Jan. 12, 2019, 7 p.m. 4.0 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 24.0 ppb (18) N/A 7.0 μg/m3 (6) 4.0 μg/m3 (17) 18.0
 
Jan. 12, 2019, 6 p.m. 4.6 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 17.0 ppb (13) N/A 6.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
Jan. 12, 2019, 5 p.m. 8.5 ppb (8) 2.1 ppb (2) N/A 6.0 ppb (6) N/A N/A 11.0 ppb (8) N/A 6.0 μg/m3 (5) 9.0 μg/m3 (38) 38.0
 
Jan. 12, 2019, 4 p.m. 42.6 ppb (39) 30.6 ppb (28) N/A 12.0 ppb (11) N/A N/A 1.0 ppb (1) N/A 19.0 μg/m3 (17) 10.0 μg/m3 (42) 42.0
 
Jan. 12, 2019, 3 p.m. 64.0 ppb (61) 51.1 ppb (47) N/A 13.0 ppb (12) N/A N/A -1.0 ppb (0) N/A 23.0 μg/m3 (21) 7.0 μg/m3 (29) 61.0
 
Jan. 12, 2019, 2 p.m. 20.6 ppb (19) 10.8 ppb (10) N/A 10.0 ppb (9) N/A N/A 1.0 ppb (1) N/A 9.0 μg/m3 (8) 6.0 μg/m3 (25) 25.0
 
Jan. 12, 2019, 1 p.m. 9.3 ppb (9) 2.3 ppb (2) N/A 7.0 ppb (6) N/A N/A 3.0 ppb (2) N/A 8.0 μg/m3 (7) 8.0 μg/m3 (33) 33.0
 
Jan. 12, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) 13.0 μg/m3 (52) 52.0
 
Jan. 12, 2019, 11 a.m. 33.4 ppb (31) 23.2 ppb (21) N/A 10.0 ppb (9) N/A N/A -1.0 ppb (0) N/A 18.0 μg/m3 (16) 16.0 μg/m3 (59) 59.0
 
Jan. 12, 2019, 10 a.m. 24.2 ppb (22) 13.3 ppb (12) N/A 11.0 ppb (10) N/A N/A -1.0 ppb (0) N/A 16.0 μg/m3 (15) 15.0 μg/m3 (56) 56.0
 
Jan. 12, 2019, 9 a.m. 31.6 ppb (29) 18.3 ppb (17) N/A 13.0 ppb (12) N/A N/A -1.0 ppb (0) N/A 16.0 μg/m3 (15) 15.0 μg/m3 (56) 56.0
 
Jan. 12, 2019, 8 a.m. 31.4 ppb (29) 18.0 ppb (17) N/A 14.0 ppb (13) N/A N/A -1.0 ppb (0) N/A 27.0 μg/m3 (25) 19.0 μg/m3 (65) 65.0
 
Jan. 12, 2019, 7 a.m. 26.7 ppb (25) 12.7 ppb (12) N/A 14.0 ppb (13) N/A N/A 0.0 ppb (0) N/A 23.0 μg/m3 (21) 17.0 μg/m3 (61) 61.0
 
Jan. 12, 2019, 6 a.m. 26.2 ppb (24) 10.7 ppb (10) N/A 16.0 ppb (15) N/A N/A 0.0 ppb (0) N/A 22.0 μg/m3 (20) 11.0 μg/m3 (46) 46.0
 
Jan. 12, 2019, 5 a.m. 18.4 ppb (17) 4.5 ppb (4) N/A 14.0 ppb (13) N/A N/A 3.0 ppb (2) N/A 21.0 μg/m3 (19) 10.0 μg/m3 (42) 42.0
 
Jan. 12, 2019, 4 a.m. 14.6 ppb (14) 2.6 ppb (2) N/A 12.0 ppb (11) N/A N/A 7.0 ppb (5) N/A 13.0 μg/m3 (12) 12.0 μg/m3 (50) 50.0
 
Jan. 12, 2019, 3 a.m. 17.3 ppb (16) 3.5 ppb (3) N/A 14.0 ppb (13) N/A N/A 6.0 ppb (5) N/A 14.0 μg/m3 (13) 10.0 μg/m3 (42) 42.0
 
Jan. 12, 2019, 2 a.m. 16.7 ppb (15) 3.3 ppb (3) N/A 13.0 ppb (12) N/A N/A 8.0 ppb (6) N/A 16.0 μg/m3 (15) 8.0 μg/m3 (33) 33.0
 
Jan. 12, 2019, 1 a.m. 13.6 ppb (13) 2.5 ppb (2) N/A 11.0 ppb (10) N/A N/A 11.0 ppb (8) N/A 15.0 μg/m3 (14) 3.0 μg/m3 (12) 14.0
 
Jan. 12, 2019, midnight 10.4 ppb (10) 2.2 ppb (2) N/A 8.0 ppb (7) N/A N/A 15.0 ppb (12) N/A 11.0 μg/m3 (10) 3.0 μg/m3 (12) 12.0
 
Jan. 11, 2019, 11 p.m. 12.3 ppb (11) 2.9 ppb (3) N/A 9.0 ppb (8) N/A N/A 15.0 ppb (12) N/A 12.0 μg/m3 (11) 3.0 μg/m3 (12) 12.0
 
Jan. 11, 2019, 10 p.m. 11.1 ppb (10) 2.3 ppb (2) N/A 9.0 ppb (8) N/A N/A 19.0 ppb (15) N/A 6.0 μg/m3 (5) 4.0 μg/m3 (17) 17.0
 
Jan. 11, 2019, 9 p.m. 8.5 ppb (8) 2.1 ppb (2) N/A 6.0 ppb (6) N/A N/A 20.0 ppb (15) N/A 6.0 μg/m3 (5) 3.0 μg/m3 (12) 15.0
 
Jan. 11, 2019, 8 p.m. 14.5 ppb (13) 5.3 ppb (5) N/A 9.0 ppb (8) N/A N/A 15.0 ppb (12) N/A 9.0 μg/m3 (8) 2.0 μg/m3 (8) 13.0
 
Jan. 11, 2019, 7 p.m. 15.4 ppb (14) 5.9 ppb (5) N/A 10.0 ppb (9) N/A N/A 10.0 ppb (8) N/A 10.0 μg/m3 (9) 5.0 μg/m3 (21) 21.0
 
Jan. 11, 2019, 6 p.m. 13.7 ppb (13) 5.4 ppb (5) N/A 8.0 ppb (7) N/A N/A 10.0 ppb (8) N/A 9.0 μg/m3 (8) 6.0 μg/m3 (25) 25.0
 
Jan. 11, 2019, 5 p.m. 9.1 ppb (8) 2.9 ppb (3) N/A 6.0 ppb (6) N/A N/A 9.0 ppb (7) N/A 10.0 μg/m3 (9) 4.0 μg/m3 (17) 17.0
 
Jan. 11, 2019, 4 p.m. 6.6 ppb (6) 1.7 ppb (2) N/A 5.0 ppb (5) N/A N/A 7.0 ppb (5) N/A 12.0 μg/m3 (11) 4.0 μg/m3 (17) 17.0
 
Jan. 11, 2019, 3 p.m. 5.2 ppb (5) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 6.0 ppb (5) N/A 10.0 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
Jan. 11, 2019, 2 p.m. 3.7 ppb (3) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 9.0 ppb (7) N/A 5.0 μg/m3 (5) 5.0 μg/m3 (21) 21.0
 
Jan. 11, 2019, 1 p.m. 5.9 ppb (5) 1.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 13.0 ppb (10) N/A 3.0 μg/m3 (3) 3.0 μg/m3 (12) 12.0
 
Jan. 11, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
Jan. 11, 2019, 11 a.m. 5.0 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 6.0 ppb (5) N/A 15.0 μg/m3 (14) 7.0 μg/m3 (29) 29.0
 
Jan. 11, 2019, 10 a.m. 3.4 ppb (3) -0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 7.0 ppb (5) N/A 12.0 μg/m3 (11) 7.0 μg/m3 (29) 29.0
 
Jan. 11, 2019, 9 a.m. 4.1 ppb (4) -0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 8.0 ppb (6) N/A 12.0 μg/m3 (11) 9.0 μg/m3 (38) 38.0
 
Jan. 11, 2019, 8 a.m. 5.1 ppb (5) -0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 9.0 ppb (7) N/A 20.0 μg/m3 (18) 13.0 μg/m3 (52) 52.0
 
Jan. 11, 2019, 7 a.m. 6.4 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 14.0 ppb (11) N/A 12.0 μg/m3 (11) 9.0 μg/m3 (38) 38.0
 
Jan. 11, 2019, 6 a.m. 6.0 ppb (6) 0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A 16.0 ppb (12) N/A 13.0 μg/m3 (12) 9.0 μg/m3 (38) 38.0
 
Jan. 11, 2019, 5 a.m. 6.3 ppb (6) -0.3 ppb (0) N/A 7.0 ppb (6) N/A N/A 14.0 ppb (11) N/A 13.0 μg/m3 (12) 14.0 μg/m3 (54) 54.0
 
Jan. 11, 2019, 4 a.m. 5.4 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 18.0 ppb (14) N/A 12.0 μg/m3 (11) 12.0 μg/m3 (50) 50.0
 
Jan. 11, 2019, 3 a.m. 6.7 ppb (6) 0.2 ppb (0) N/A 7.0 ppb (6) N/A N/A 20.0 ppb (15) N/A 13.0 μg/m3 (12) 11.0 μg/m3 (46) 46.0
 
Jan. 11, 2019, 2 a.m. 8.5 ppb (8) 0.1 ppb (0) N/A 8.0 ppb (7) N/A N/A 19.0 ppb (15) N/A 17.0 μg/m3 (15) 11.0 μg/m3 (46) 46.0
 
Jan. 11, 2019, 1 a.m. 9.4 ppb (9) 0.9 ppb (1) N/A 9.0 ppb (8) N/A N/A 20.0 ppb (15) N/A 10.0 μg/m3 (9) 9.0 μg/m3 (38) 38.0
 
Jan. 11, 2019, midnight 8.9 ppb (8) 1.2 ppb (1) N/A 8.0 ppb (7) N/A N/A 20.0 ppb (15) N/A 9.0 μg/m3 (8) 5.0 μg/m3 (21) 21.0
 
Jan. 10, 2019, 11 p.m. 10.2 ppb (9) 2.0 ppb (2) N/A 8.0 ppb (7) N/A N/A 19.0 ppb (15) N/A 11.0 μg/m3 (10) 5.0 μg/m3 (21) 21.0
 
Jan. 10, 2019, 10 p.m. 8.7 ppb (8) 1.5 ppb (1) N/A 7.0 ppb (6) N/A N/A 23.0 ppb (18) N/A 9.0 μg/m3 (8) 3.0 μg/m3 (12) 18.0
 
Jan. 10, 2019, 9 p.m. 8.2 ppb (8) 1.4 ppb (1) N/A 7.0 ppb (6) N/A N/A 22.0 ppb (17) N/A 9.0 μg/m3 (8) 2.0 μg/m3 (8) 17.0
 
Jan. 10, 2019, 8 p.m. 14.4 ppb (13) 3.7 ppb (3) N/A 11.0 ppb (10) N/A N/A 20.0 ppb (15) N/A 10.0 μg/m3 (9) 1.0 μg/m3 (4) 15.0
 
Jan. 10, 2019, 7 p.m. 14.6 ppb (14) 3.6 ppb (3) N/A 11.0 ppb (10) N/A N/A 20.0 ppb (15) N/A 9.0 μg/m3 (8) 2.0 μg/m3 (8) 15.0
 
Jan. 10, 2019, 6 p.m. 22.3 ppb (21) 8.1 ppb (8) N/A 14.0 ppb (13) N/A N/A 14.0 ppb (11) N/A 8.0 μg/m3 (7) 4.0 μg/m3 (17) 21.0
 
Jan. 10, 2019, 5 p.m. 37.2 ppb (34) 19.4 ppb (18) N/A 18.0 ppb (17) N/A N/A 5.0 ppb (4) N/A 6.0 μg/m3 (5) 3.0 μg/m3 (12) 34.0
 
Jan. 10, 2019, 4 p.m. 33.9 ppb (31) 16.0 ppb (15) N/A 18.0 ppb (17) N/A N/A 4.0 ppb (3) N/A 16.0 μg/m3 (15) 2.0 μg/m3 (8) 31.0
 
Jan. 10, 2019, 3 p.m. 13.7 ppb (13) 3.1 ppb (3) N/A 11.0 ppb (10) N/A N/A 9.0 ppb (7) N/A 5.0 μg/m3 (5) 3.0 μg/m3 (12) 13.0
 
Jan. 10, 2019, 2 p.m. 5.4 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 15.0 ppb (12) N/A 2.0 μg/m3 (2) 4.0 μg/m3 (17) 17.0
 
Jan. 10, 2019, 1 p.m. 4.5 ppb (4) -0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A 15.0 ppb (12) N/A 5.0 μg/m3 (5) 3.0 μg/m3 (12) 12.0
 
Jan. 10, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 4.0 μg/m3 (17) 17.0
 
Jan. 10, 2019, 11 a.m. 17.5 ppb (16) 1.5 ppb (1) N/A 16.0 ppb (15) N/A N/A 4.0 ppb (3) N/A 7.0 μg/m3 (6) 5.0 μg/m3 (21) 21.0
 
Jan. 10, 2019, 10 a.m. 9.2 ppb (9) 0.2 ppb (0) N/A 9.0 ppb (8) N/A N/A 15.0 ppb (12) N/A 6.0 μg/m3 (5) 7.0 μg/m3 (29) 29.0
 
Jan. 10, 2019, 9 a.m. 3.8 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 22.0 ppb (17) N/A 7.0 μg/m3 (6) 7.0 μg/m3 (29) 29.0
 
Jan. 10, 2019, 8 a.m. 3.1 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 21.0 ppb (16) N/A 10.0 μg/m3 (9) 9.0 μg/m3 (38) 38.0
 
Jan. 10, 2019, 7 a.m. 3.4 ppb (3) -0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 20.0 ppb (15) N/A 11.0 μg/m3 (10) 8.0 μg/m3 (33) 33.0
 
Jan. 10, 2019, 6 a.m. 3.3 ppb (3) -0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 24.0 ppb (18) N/A 8.0 μg/m3 (7) 7.0 μg/m3 (29) 29.0
 
Jan. 10, 2019, 5 a.m. 4.2 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 23.0 ppb (18) N/A 8.0 μg/m3 (7) 8.0 μg/m3 (33) 33.0
 
Jan. 10, 2019, 4 a.m. 4.7 ppb (4) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 25.0 ppb (19) N/A 6.0 μg/m3 (5) 5.0 μg/m3 (21) 21.0
 
Jan. 10, 2019, 3 a.m. 5.9 ppb (5) 0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A 21.0 ppb (16) N/A 6.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
Jan. 10, 2019, 2 a.m. 13.0 ppb (12) 1.3 ppb (1) N/A 12.0 ppb (11) N/A N/A 18.0 ppb (14) N/A 9.0 μg/m3 (8) 6.0 μg/m3 (25) 25.0
 
Jan. 10, 2019, 1 a.m. 10.3 ppb (10) 1.7 ppb (2) N/A 9.0 ppb (8) N/A N/A 23.0 ppb (18) N/A 7.0 μg/m3 (6) 5.0 μg/m3 (21) 21.0
 
Jan. 10, 2019, midnight 4.6 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 28.0 ppb (22) N/A 2.0 μg/m3 (2) 2.0 μg/m3 (8) 22.0
 
Jan. 9, 2019, 11 p.m. 4.1 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (22) N/A 4.0 μg/m3 (4) 1.0 μg/m3 (4) 22.0
 
Jan. 9, 2019, 10 p.m. 4.7 ppb (4) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (23) N/A 7.0 μg/m3 (6) 2.0 μg/m3 (8) 23.0
 
Jan. 9, 2019, 9 p.m. 3.9 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 29.0 ppb (22) N/A 4.0 μg/m3 (4) 4.0 μg/m3 (17) 22.0
 
Jan. 9, 2019, 8 p.m. 4.6 ppb (4) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (23) N/A 4.0 μg/m3 (4) 5.0 μg/m3 (21) 23.0
 
Jan. 9, 2019, 7 p.m. 6.6 ppb (6) 1.7 ppb (2) N/A 5.0 ppb (5) N/A N/A 27.0 ppb (21) N/A 3.0 μg/m3 (3) 1.0 μg/m3 (4) 21.0
 
Jan. 9, 2019, 6 p.m. 4.9 ppb (5) 1.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 27.0 ppb (21) N/A 2.0 μg/m3 (2) 2.0 μg/m3 (8) 21.0
 
Jan. 9, 2019, 5 p.m. 3.9 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 27.0 ppb (21) N/A 6.0 μg/m3 (5) 2.0 μg/m3 (8) 21.0
 
Jan. 9, 2019, 4 p.m. 4.4 ppb (4) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (20) N/A 6.0 μg/m3 (5) 1.0 μg/m3 (4) 20.0
 
Jan. 9, 2019, 3 p.m. 6.7 ppb (6) 1.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 27.0 ppb (21) N/A 4.0 μg/m3 (4) 2.0 μg/m3 (8) 21.0
 
Jan. 9, 2019, 2 p.m. 7.6 ppb (7) 2.1 ppb (2) N/A 6.0 ppb (6) N/A N/A 27.0 ppb (21) N/A 3.0 μg/m3 (3) 3.0 μg/m3 (12) 21.0
 
Jan. 9, 2019, 1 p.m. 9.9 ppb (9) 2.6 ppb (2) N/A 7.0 ppb (6) N/A N/A 20.0 ppb (15) N/A 3.0 μg/m3 (3) 5.0 μg/m3 (21) 21.0