AQSQID: 060370016

Site Name: Glendora - Laurel

Location: Glendora, CA

Reporting: True, Located: True

Current AQI: 21.0

Glendora CA, US: 34.1439, -117.8508

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 17, 2019, noon 2.8 ppb (3) -0.6 ppb (0) N/A 3.0 ppb (3) N/A N/A 26.0 ppb (20) 0.21 ppb (2) 0.0 μg/m3 (0) 5.0 μg/m3 (21) 21.0
 
Jan. 17, 2019, 11 a.m. 3.4 ppb (3) -0.6 ppb (0) N/A 4.0 ppb (4) N/A N/A 23.0 ppb (18) 0.24 ppb (3) 2.0 μg/m3 (2) 3.8 μg/m3 (16) 18.0
 
Jan. 17, 2019, 10 a.m. 1.0 ppb (1) -0.6 ppb (0) N/A 2.0 ppb (2) N/A N/A 23.0 ppb (18) 0.22 ppb (2) 3.0 μg/m3 (3) 2.8 μg/m3 (12) 18.0
 
Jan. 17, 2019, 9 a.m. 0.8 ppb (1) -0.7 ppb (0) N/A 1.0 ppb (1) N/A N/A 27.0 ppb (21) 0.23 ppb (3) 1.0 μg/m3 (1) 4.0 μg/m3 (17) 21.0
 
Jan. 17, 2019, 8 a.m. 2.9 ppb (3) -0.6 ppb (0) N/A 3.0 ppb (3) N/A N/A 25.0 ppb (19) 0.27 ppb (3) 1.0 μg/m3 (1) 5.0 μg/m3 (21) 21.0
 
Jan. 17, 2019, 7 a.m. 3.7 ppb (3) -0.6 ppb (0) N/A 4.0 ppb (4) N/A N/A 24.0 ppb (18) 0.29 ppb (3) 2.0 μg/m3 (2) 6.6 μg/m3 (28) 28.0
 
Jan. 17, 2019, 6 a.m. 4.4 ppb (4) -0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 24.0 ppb (18) 0.3 ppb (3) 1.0 μg/m3 (1) 6.2 μg/m3 (26) 26.0
 
Jan. 17, 2019, 5 a.m. 4.8 ppb (4) -0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 24.0 ppb (18) 0.33 ppb (4) 6.0 μg/m3 (5) 9.3 μg/m3 (39) 39.0
 
Jan. 17, 2019, 4 a.m. 5.7 ppb (5) -0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 23.0 ppb (18) 0.41 ppb (5) 10.0 μg/m3 (9) 11.2 μg/m3 (47) 47.0
 
Jan. 17, 2019, 3 a.m. 8.4 ppb (8) -0.4 ppb (0) N/A 9.0 ppb (8) N/A N/A 20.0 ppb (15) 0.43 ppb (5) 6.0 μg/m3 (5) 12.2 μg/m3 (50) 50.0
 
Jan. 17, 2019, 2 a.m. 8.8 ppb (8) -0.4 ppb (0) N/A 9.0 ppb (8) N/A N/A 21.0 ppb (16) 0.4 ppb (4) 5.0 μg/m3 (5) 13.5 μg/m3 (53) 53.0
 
Jan. 17, 2019, 1 a.m. 9.8 ppb (9) -0.3 ppb (0) N/A 10.0 ppb (9) N/A N/A 19.0 ppb (15) 0.4 ppb (4) 3.0 μg/m3 (3) 10.0 μg/m3 (42) 42.0
 
Jan. 17, 2019, midnight 8.7 ppb (8) -0.2 ppb (0) N/A 9.0 ppb (8) N/A N/A 22.0 ppb (17) 0.36 ppb (4) 2.0 μg/m3 (2) 3.7 μg/m3 (15) 17.0
 
Jan. 16, 2019, 11 p.m. 11.3 ppb (10) 0.4 ppb (0) N/A 11.0 ppb (10) N/A N/A 20.0 ppb (15) 0.37 ppb (4) 2.0 μg/m3 (2) 6.1 μg/m3 (25) 25.0
 
Jan. 16, 2019, 10 p.m. 9.2 ppb (9) 0.9 ppb (1) N/A 8.0 ppb (7) N/A N/A 23.0 ppb (18) 0.35 ppb (4) 2.0 μg/m3 (2) 4.8 μg/m3 (20) 20.0
 
Jan. 16, 2019, 9 p.m. 12.7 ppb (12) 2.6 ppb (2) N/A 10.0 ppb (9) N/A N/A 21.0 ppb (16) 0.36 ppb (4) 5.0 μg/m3 (5) 4.5 μg/m3 (19) 19.0
 
Jan. 16, 2019, 8 p.m. 14.8 ppb (14) 2.9 ppb (3) N/A 12.0 ppb (11) N/A N/A 21.0 ppb (16) 0.37 ppb (4) 4.0 μg/m3 (4) 6.2 μg/m3 (26) 26.0
 
Jan. 16, 2019, 7 p.m. 13.4 ppb (12) 2.5 ppb (2) N/A 11.0 ppb (10) N/A N/A 20.0 ppb (15) 0.35 ppb (4) 3.0 μg/m3 (3) 7.4 μg/m3 (31) 31.0
 
Jan. 16, 2019, 6 p.m. 7.7 ppb (7) 1.5 ppb (1) N/A 6.0 ppb (6) N/A N/A 21.0 ppb (16) 0.3 ppb (3) 2.0 μg/m3 (2) 5.3 μg/m3 (22) 22.0
 
Jan. 16, 2019, 5 p.m. 5.6 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 23.0 ppb (18) 0.29 ppb (3) 7.0 μg/m3 (6) 5.5 μg/m3 (23) 23.0
 
Jan. 16, 2019, 4 p.m. 7.3 ppb (7) 0.7 ppb (1) N/A 7.0 ppb (6) N/A N/A 23.0 ppb (18) 0.3 ppb (3) 0.0 μg/m3 (0) 4.5 μg/m3 (19) 19.0
 
Jan. 16, 2019, 3 p.m. 11.4 ppb (11) 0.2 ppb (0) N/A 11.0 ppb (10) N/A N/A 15.0 ppb (12) 0.32 ppb (4) N/A 5.3 μg/m3 (22) 22.0
 
Jan. 16, 2019, 2 p.m. 1.5 ppb (1) -0.6 ppb (0) N/A 2.0 ppb (2) N/A N/A 24.0 ppb (18) 0.23 ppb (3) 3.0 μg/m3 (3) 5.5 μg/m3 (23) 23.0
 
Jan. 16, 2019, 1 p.m. 1.9 ppb (2) -0.6 ppb (0) N/A 2.0 ppb (2) N/A N/A 21.0 ppb (16) 0.23 ppb (3) 2.0 μg/m3 (2) 6.6 μg/m3 (28) 28.0
 
Jan. 16, 2019, noon 2.7 ppb (3) -0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 21.0 ppb (16) 0.24 ppb (3) 0.0 μg/m3 (0) 3.8 μg/m3 (16) 16.0
 
Jan. 16, 2019, 11 a.m. 0.9 ppb (1) -0.7 ppb (0) N/A 2.0 ppb (2) N/A N/A 27.0 ppb (21) 0.23 ppb (3) 0.0 μg/m3 (0) 4.3 μg/m3 (18) 21.0
 
Jan. 16, 2019, 10 a.m. 1.4 ppb (1) -0.7 ppb (0) N/A 2.0 ppb (2) N/A N/A 25.0 ppb (19) 0.24 ppb (3) 1.0 μg/m3 (1) 1.6 μg/m3 (7) 19.0
 
Jan. 16, 2019, 9 a.m. -0.2 ppb (0) -0.8 ppb (0) N/A 1.0 ppb (1) N/A N/A 28.0 ppb (22) 0.23 ppb (3) 4.0 μg/m3 (4) -0.4 μg/m3 (0) 22.0
 
Jan. 16, 2019, 8 a.m. -0.2 ppb (0) -0.8 ppb (0) N/A 1.0 ppb (1) N/A N/A 30.0 ppb (23) 0.22 ppb (2) 6.0 μg/m3 (5) 3.5 μg/m3 (15) 23.0
 
Jan. 16, 2019, 7 a.m. 0.5 ppb (0) -0.8 ppb (0) N/A 1.0 ppb (1) N/A N/A 28.0 ppb (22) 0.26 ppb (3) 4.0 μg/m3 (4) 7.4 μg/m3 (31) 31.0
 
Jan. 16, 2019, 6 a.m. 0.6 ppb (1) -0.7 ppb (0) N/A 1.0 ppb (1) N/A N/A 31.0 ppb (24) 0.24 ppb (3) 15.0 μg/m3 (14) 6.5 μg/m3 (27) 27.0
 
Jan. 16, 2019, 5 a.m. 0.2 ppb (0) -0.7 ppb (0) N/A 1.0 ppb (1) N/A N/A 35.0 ppb (27) 0.25 ppb (3) 6.0 μg/m3 (5) 7.0 μg/m3 (29) 29.0
 
Jan. 16, 2019, 4 a.m. 0.4 ppb (0) -0.7 ppb (0) N/A 1.0 ppb (1) N/A N/A 35.0 ppb (27) 0.28 ppb (3) 2.0 μg/m3 (2) 9.1 μg/m3 (38) 38.0
 
Jan. 16, 2019, 3 a.m. 0.8 ppb (1) -0.7 ppb (0) N/A 1.0 ppb (1) N/A N/A 35.0 ppb (27) 0.27 ppb (3) -3.0 μg/m3 (0) 9.3 μg/m3 (39) 39.0
 
Jan. 16, 2019, 2 a.m. 0.4 ppb (0) -0.7 ppb (0) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (28) 0.27 ppb (3) 1.0 μg/m3 (1) 10.0 μg/m3 (42) 42.0
 
Jan. 16, 2019, 1 a.m. 0.4 ppb (0) -0.7 ppb (0) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (28) 0.25 ppb (3) 0.0 μg/m3 (0) 6.2 μg/m3 (26) 28.0
 
Jan. 16, 2019, midnight 2.1 ppb (2) -0.7 ppb (0) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (25) 0.27 ppb (3) -3.0 μg/m3 (0) 7.6 μg/m3 (32) 32.0
 
Jan. 15, 2019, 11 p.m. 4.0 ppb (4) -0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 32.0 ppb (25) 0.29 ppb (3) -5.0 μg/m3 (0) 4.5 μg/m3 (19) 25.0
 
Jan. 15, 2019, 10 p.m. 4.2 ppb (4) -0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 36.0 ppb (28) 0.31 ppb (3) 1.0 μg/m3 (1) 4.7 μg/m3 (20) 28.0
 
Jan. 15, 2019, 9 p.m. 7.0 ppb (6) 0.1 ppb (0) N/A 7.0 ppb (6) N/A N/A 34.0 ppb (26) 0.35 ppb (4) 10.0 μg/m3 (9) 8.1 μg/m3 (34) 34.0
 
Jan. 15, 2019, 8 p.m. 11.7 ppb (11) 1.6 ppb (1) N/A 10.0 ppb (9) N/A N/A 29.0 ppb (22) 0.37 ppb (4) 11.0 μg/m3 (10) 9.8 μg/m3 (41) 41.0
 
Jan. 15, 2019, 7 p.m. 9.3 ppb (9) 2.9 ppb (3) N/A 6.0 ppb (6) N/A N/A 30.0 ppb (23) 0.35 ppb (4) 9.0 μg/m3 (8) 4.9 μg/m3 (20) 23.0
 
Jan. 15, 2019, 6 p.m. 12.3 ppb (11) 3.3 ppb (3) N/A 9.0 ppb (8) N/A N/A 21.0 ppb (16) 0.38 ppb (4) 20.0 μg/m3 (18) 2.8 μg/m3 (12) 18.0
 
Jan. 15, 2019, 5 p.m. 7.7 ppb (7) 1.1 ppb (1) N/A 7.0 ppb (6) N/A N/A 20.0 ppb (15) 0.32 ppb (4) 7.0 μg/m3 (6) 2.3 μg/m3 (10) 15.0
 
Jan. 15, 2019, 4 p.m. 0.8 ppb (1) -0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A 27.0 ppb (21) 0.25 ppb (3) 6.0 μg/m3 (5) 4.8 μg/m3 (20) 21.0
 
Jan. 15, 2019, 3 p.m. 1.7 ppb (2) -0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 24.0 ppb (18) 0.24 ppb (3) 6.0 μg/m3 (5) 8.4 μg/m3 (35) 35.0
 
Jan. 15, 2019, 2 p.m. 1.5 ppb (1) -0.6 ppb (0) N/A 2.0 ppb (2) N/A N/A 22.0 ppb (17) 0.23 ppb (3) 2.0 μg/m3 (2) 6.3 μg/m3 (26) 26.0
 
Jan. 15, 2019, 1 p.m. 2.3 ppb (2) -0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 16.0 ppb (12) 0.24 ppb (3) 7.0 μg/m3 (6) 10.3 μg/m3 (43) 43.0
 
Jan. 15, 2019, noon 0.7 ppb (1) -0.6 ppb (0) N/A 1.0 ppb (1) N/A N/A 21.0 ppb (16) 0.23 ppb (3) 13.0 μg/m3 (12) 1.6 μg/m3 (7) 16.0
 
Jan. 15, 2019, 11 a.m. 0.6 ppb (1) -0.7 ppb (0) N/A 1.0 ppb (1) N/A N/A 21.0 ppb (16) 0.23 ppb (3) 3.0 μg/m3 (3) 2.6 μg/m3 (11) 16.0
 
Jan. 15, 2019, 10 a.m. 1.2 ppb (1) -0.6 ppb (0) N/A 2.0 ppb (2) N/A N/A 20.0 ppb (15) 0.24 ppb (3) N/A 2.1 μg/m3 (9) 15.0
 
Jan. 15, 2019, 9 a.m. 1.3 ppb (1) -0.6 ppb (0) N/A 2.0 ppb (2) N/A N/A 17.0 ppb (13) 0.25 ppb (3) 15.0 μg/m3 (14) 3.5 μg/m3 (15) 15.0
 
Jan. 15, 2019, 8 a.m. 2.9 ppb (3) -0.6 ppb (0) N/A 3.0 ppb (3) N/A N/A 15.0 ppb (12) 0.27 ppb (3) 4.0 μg/m3 (4) 4.8 μg/m3 (20) 20.0
 
Jan. 15, 2019, 7 a.m. 2.2 ppb (2) -0.6 ppb (0) N/A 3.0 ppb (3) N/A N/A 17.0 ppb (13) 0.28 ppb (3) 4.0 μg/m3 (4) 6.5 μg/m3 (27) 27.0
 
Jan. 15, 2019, 6 a.m. 1.7 ppb (2) -0.6 ppb (0) N/A 2.0 ppb (2) N/A N/A 17.0 ppb (13) 0.28 ppb (3) 1.0 μg/m3 (1) 7.9 μg/m3 (33) 33.0
 
Jan. 15, 2019, 5 a.m. 3.9 ppb (4) -0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 23.0 ppb (18) 0.29 ppb (3) -4.0 μg/m3 (0) 6.5 μg/m3 (27) 27.0
 
Jan. 15, 2019, 4 a.m. 3.2 ppb (3) -0.6 ppb (0) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (20) 0.3 ppb (3) 0.0 μg/m3 (0) 7.1 μg/m3 (30) 30.0
 
Jan. 15, 2019, 3 a.m. 1.8 ppb (2) -0.7 ppb (0) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (23) 0.27 ppb (3) 6.0 μg/m3 (5) 5.7 μg/m3 (24) 24.0
 
Jan. 15, 2019, 2 a.m. 3.2 ppb (3) -0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (23) 0.28 ppb (3) 7.0 μg/m3 (6) 3.8 μg/m3 (16) 23.0
 
Jan. 15, 2019, 1 a.m. 2.1 ppb (2) -0.6 ppb (0) N/A 3.0 ppb (3) N/A N/A 31.0 ppb (24) 0.27 ppb (3) 6.0 μg/m3 (5) 6.5 μg/m3 (27) 27.0
 
Jan. 15, 2019, midnight 3.2 ppb (3) -0.6 ppb (0) N/A 4.0 ppb (4) N/A N/A 31.0 ppb (24) 0.27 ppb (3) 7.0 μg/m3 (6) 6.9 μg/m3 (29) 29.0
 
Jan. 14, 2019, 11 p.m. 3.2 ppb (3) -0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (23) 0.26 ppb (3) 2.0 μg/m3 (2) 7.4 μg/m3 (31) 31.0
 
Jan. 14, 2019, 10 p.m. 7.5 ppb (7) -0.1 ppb (0) N/A 8.0 ppb (7) N/A N/A 25.0 ppb (19) 0.29 ppb (3) 2.0 μg/m3 (2) 10.8 μg/m3 (45) 45.0
 
Jan. 14, 2019, 9 p.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A 26.0 ppb (20) 0.27 ppb (3) 4.0 μg/m3 (4) 7.4 μg/m3 (31) 31.0
 
Jan. 14, 2019, 8 p.m. 8.0 ppb (7) 0.1 ppb (0) N/A 8.0 ppb (7) N/A N/A 24.0 ppb (18) 0.28 ppb (3) -1.0 μg/m3 (0) 6.9 μg/m3 (29) 29.0
 
Jan. 14, 2019, 7 p.m. 3.7 ppb (3) -0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 28.0 ppb (22) 0.26 ppb (3) 2.0 μg/m3 (2) 6.6 μg/m3 (28) 28.0
 
Jan. 14, 2019, 6 p.m. 0.5 ppb (0) -0.6 ppb (0) N/A 1.0 ppb (1) N/A N/A 35.0 ppb (27) 0.23 ppb (3) 0.0 μg/m3 (0) 5.2 μg/m3 (22) 27.0
 
Jan. 14, 2019, 5 p.m. 0.2 ppb (0) -0.6 ppb (0) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (28) 0.23 ppb (3) -1.0 μg/m3 (0) 7.1 μg/m3 (30) 30.0
 
Jan. 14, 2019, 4 p.m. 11.6 ppb (11) -0.1 ppb (0) N/A 12.0 ppb (11) N/A N/A 26.0 ppb (20) 0.33 ppb (4) 0.0 μg/m3 (0) 8.6 μg/m3 (36) 36.0
 
Jan. 14, 2019, 3 p.m. 2.6 ppb (2) -0.6 ppb (0) N/A 3.0 ppb (3) N/A N/A 38.0 ppb (29) 0.27 ppb (3) 2.0 μg/m3 (2) 6.9 μg/m3 (29) 29.0
 
Jan. 14, 2019, 2 p.m. 3.0 ppb (3) -0.6 ppb (0) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (28) 0.25 ppb (3) 2.0 μg/m3 (2) 5.7 μg/m3 (24) 28.0
 
Jan. 14, 2019, 1 p.m. 9.6 ppb (9) -0.3 ppb (0) N/A 10.0 ppb (9) N/A N/A 24.0 ppb (18) 0.3 ppb (3) 1.0 μg/m3 (1) 5.0 μg/m3 (21) 21.0
 
Jan. 14, 2019, noon 2.4 ppb (2) -0.7 ppb (0) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (27) 0.25 ppb (3) 1.0 μg/m3 (1) 4.8 μg/m3 (20) 27.0
 
Jan. 14, 2019, 11 a.m. 1.3 ppb (1) -0.7 ppb (0) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (26) 0.24 ppb (3) 6.0 μg/m3 (5) 8.8 μg/m3 (37) 37.0
 
Jan. 14, 2019, 10 a.m. 1.2 ppb (1) -0.7 ppb (0) N/A 2.0 ppb (2) N/A N/A 32.0 ppb (25) 0.23 ppb (3) 1.0 μg/m3 (1) 5.5 μg/m3 (23) 25.0
 
Jan. 14, 2019, 9 a.m. 0.9 ppb (1) -0.7 ppb (0) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (25) 0.23 ppb (3) -3.0 μg/m3 (0) 6.7 μg/m3 (28) 28.0
 
Jan. 14, 2019, 8 a.m. 1.2 ppb (1) -0.7 ppb (0) N/A 2.0 ppb (2) N/A N/A 31.0 ppb (24) 0.24 ppb (3) 2.0 μg/m3 (2) 10.7 μg/m3 (45) 45.0
 
Jan. 14, 2019, 7 a.m. 2.4 ppb (2) -0.7 ppb (0) N/A 3.0 ppb (3) N/A N/A 28.0 ppb (22) 0.27 ppb (3) -2.0 μg/m3 (0) 5.7 μg/m3 (24) 24.0
 
Jan. 14, 2019, 6 a.m. 2.2 ppb (2) -0.6 ppb (0) N/A 3.0 ppb (3) N/A N/A 26.0 ppb (20) 0.29 ppb (3) -4.0 μg/m3 (0) 6.2 μg/m3 (26) 26.0
 
Jan. 14, 2019, 5 a.m. 1.6 ppb (1) -0.6 ppb (0) N/A 2.0 ppb (2) N/A N/A 29.0 ppb (22) 0.3 ppb (3) -4.0 μg/m3 (0) 8.3 μg/m3 (35) 35.0
 
Jan. 14, 2019, 4 a.m. 2.0 ppb (2) -0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 33.0 ppb (25) 0.3 ppb (3) 0.0 μg/m3 (0) 10.5 μg/m3 (44) 44.0
 
Jan. 14, 2019, 3 a.m. 2.9 ppb (3) -0.6 ppb (0) N/A 3.0 ppb (3) N/A N/A 30.0 ppb (23) 0.36 ppb (4) 4.0 μg/m3 (4) 3.8 μg/m3 (16) 23.0
 
Jan. 14, 2019, 2 a.m. 4.3 ppb (4) -0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 28.0 ppb (22) 0.34 ppb (4) 5.0 μg/m3 (5) 7.6 μg/m3 (32) 32.0
 
Jan. 14, 2019, 1 a.m. 9.7 ppb (9) -0.2 ppb (0) N/A 10.0 ppb (9) N/A N/A 25.0 ppb (19) 0.43 ppb (5) 6.0 μg/m3 (5) 14.3 μg/m3 (55) 55.0
 
Jan. 14, 2019, midnight 9.1 ppb (8) -0.1 ppb (0) N/A 9.0 ppb (8) N/A N/A 29.0 ppb (22) 0.41 ppb (5) 6.0 μg/m3 (5) 7.1 μg/m3 (30) 30.0
 
Jan. 13, 2019, 11 p.m. 8.3 ppb (8) 0.3 ppb (0) N/A 8.0 ppb (7) N/A N/A 32.0 ppb (25) 0.39 ppb (4) 4.0 μg/m3 (4) 12.0 μg/m3 (50) 50.0
 
Jan. 13, 2019, 10 p.m. 6.7 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A 33.0 ppb (25) 0.37 ppb (4) 4.0 μg/m3 (4) 6.9 μg/m3 (29) 29.0
 
Jan. 13, 2019, 9 p.m. 7.8 ppb (7) 0.8 ppb (1) N/A 7.0 ppb (6) N/A N/A 34.0 ppb (26) 0.38 ppb (4) 7.0 μg/m3 (6) 4.4 μg/m3 (18) 26.0
 
Jan. 13, 2019, 8 p.m. 6.3 ppb (6) 0.7 ppb (1) N/A 6.0 ppb (6) N/A N/A 36.0 ppb (28) 0.37 ppb (4) 20.0 μg/m3 (18) 2.5 μg/m3 (10) 28.0
 
Jan. 13, 2019, 7 p.m. 5.2 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A 35.0 ppb (27) 0.35 ppb (4) 9.0 μg/m3 (8) 3.3 μg/m3 (14) 27.0
 
Jan. 13, 2019, 6 p.m. 6.7 ppb (6) 1.5 ppb (1) N/A 5.0 ppb (5) N/A N/A 31.0 ppb (24) 0.34 ppb (4) 2.0 μg/m3 (2) 4.0 μg/m3 (17) 24.0
 
Jan. 13, 2019, 5 p.m. 4.5 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (23) 0.28 ppb (3) 3.0 μg/m3 (3) 3.5 μg/m3 (15) 23.0
 
Jan. 13, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 3.1 μg/m3 (13) 13.0
 
Jan. 13, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 4.3 μg/m3 (18) 18.0
 
Jan. 13, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A -1.0 μg/m3 (0) 7.0 μg/m3 (29) 29.0
 
Jan. 13, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) 7.7 μg/m3 (32) 32.0
 
Jan. 13, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A -1.0 μg/m3 (0) 4.5 μg/m3 (19) 19.0
 
Jan. 13, 2019, 5 a.m. 0.8 ppb (1) -0.7 ppb (0) N/A 1.0 ppb (1) N/A N/A 23.0 ppb (18) 0.26 ppb (3) 0.0 μg/m3 (0) 5.3 μg/m3 (22) 22.0
 
Jan. 13, 2019, 4 a.m. 1.3 ppb (1) -0.6 ppb (0) N/A 2.0 ppb (2) N/A N/A 25.0 ppb (19) 0.27 ppb (3) -1.0 μg/m3 (0) 7.0 μg/m3 (29) 29.0
 
Jan. 13, 2019, 3 a.m. 0.6 ppb (1) -0.6 ppb (0) N/A 1.0 ppb (1) N/A N/A 28.0 ppb (22) 0.28 ppb (3) -2.0 μg/m3 (0) 9.1 μg/m3 (38) 38.0
 
Jan. 13, 2019, 2 a.m. 2.2 ppb (2) -0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 23.0 ppb (18) 0.3 ppb (3) -2.0 μg/m3 (0) 10.7 μg/m3 (45) 45.0
 
Jan. 13, 2019, 1 a.m. 6.1 ppb (6) -0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A 16.0 ppb (12) 0.4 ppb (4) 5.0 μg/m3 (5) 10.5 μg/m3 (44) 44.0
 
Jan. 13, 2019, midnight 8.7 ppb (8) 0.1 ppb (0) N/A 9.0 ppb (8) N/A N/A 27.0 ppb (21) 0.41 ppb (5) 9.0 μg/m3 (8) 4.0 μg/m3 (17) 21.0
 
Jan. 12, 2019, 11 p.m. 1.0 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (31) 0.29 ppb (3) 18.0 μg/m3 (16) 3.0 μg/m3 (12) 31.0
 
Jan. 12, 2019, 10 p.m. 0.7 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (29) 0.26 ppb (3) N/A 6.6 μg/m3 (28) 29.0
 
Jan. 12, 2019, 9 p.m. 0.6 ppb (1) -0.6 ppb (0) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (29) 0.25 ppb (3) -5.0 μg/m3 (0) 3.8 μg/m3 (16) 29.0
 
Jan. 12, 2019, 8 p.m. 6.3 ppb (6) -0.5 ppb (0) N/A 7.0 ppb (6) N/A N/A 28.0 ppb (22) 0.32 ppb (4) 1.0 μg/m3 (1) 2.6 μg/m3 (11) 22.0
 
Jan. 12, 2019, 7 p.m. 2.9 ppb (3) -0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (25) 0.3 ppb (3) 6.0 μg/m3 (5) 1.3 μg/m3 (5) 25.0
 
Jan. 12, 2019, 6 p.m. 9.1 ppb (8) 1.4 ppb (1) N/A 8.0 ppb (7) N/A N/A 26.0 ppb (20) 0.33 ppb (4) 3.0 μg/m3 (3) 4.5 μg/m3 (19) 20.0
 
Jan. 12, 2019, 5 p.m. 1.5 ppb (1) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (23) 0.24 ppb (3) -3.0 μg/m3 (0) 4.5 μg/m3 (19) 23.0
 
Jan. 12, 2019, 4 p.m. 1.0 ppb (1) -0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 31.0 ppb (24) 0.22 ppb (2) -3.0 μg/m3 (0) 2.1 μg/m3 (9) 24.0
 
Jan. 12, 2019, 3 p.m. 1.0 ppb (1) -0.6 ppb (0) N/A 2.0 ppb (2) N/A N/A 32.0 ppb (25) 0.22 ppb (2) 0.0 μg/m3 (0) 2.1 μg/m3 (9) 25.0
 
Jan. 12, 2019, 2 p.m. 1.1 ppb (1) -0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (25) 0.23 ppb (3) -1.0 μg/m3 (0) 3.3 μg/m3 (14) 25.0
 
Jan. 12, 2019, 1 p.m. 0.3 ppb (0) -0.6 ppb (0) N/A 1.0 ppb (1) N/A N/A 36.0 ppb (28) 0.22 ppb (2) -4.0 μg/m3 (0) 5.3 μg/m3 (22) 28.0
 
Jan. 12, 2019, noon 2.8 ppb (3) -0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 30.0 ppb (23) 0.24 ppb (3) -1.0 μg/m3 (0) 6.0 μg/m3 (25) 25.0
 
Jan. 12, 2019, 11 a.m. 20.0 ppb (19) 2.0 ppb (2) N/A 18.0 ppb (17) N/A N/A 10.0 ppb (8) 0.48 ppb (5) 15.0 μg/m3 (14) 17.6 μg/m3 (62) 62.0
 
Jan. 12, 2019, 10 a.m. 33.5 ppb (31) 6.1 ppb (6) N/A 27.0 ppb (25) N/A N/A -1.0 ppb (0) 0.62 ppb (7) 33.0 μg/m3 (30) 30.7 μg/m3 (90) 90.0
 
Jan. 12, 2019, 9 a.m. 57.2 ppb (53) 25.4 ppb (24) N/A 32.0 ppb (30) N/A N/A -1.0 ppb (0) 0.8 ppb (9) 35.0 μg/m3 (32) 29.4 μg/m3 (87) 87.0
 
Jan. 12, 2019, 8 a.m. 47.3 ppb (44) 17.3 ppb (16) N/A 30.0 ppb (28) N/A N/A -1.0 ppb (0) 0.77 ppb (9) 33.0 μg/m3 (30) 20.1 μg/m3 (67) 67.0
 
Jan. 12, 2019, 7 a.m. 24.4 ppb (23) 1.9 ppb (2) N/A 23.0 ppb (21) N/A N/A 3.0 ppb (2) 0.6 ppb (7) 24.0 μg/m3 (22) 28.3 μg/m3 (85) 85.0
 
Jan. 12, 2019, 6 a.m. 13.4 ppb (12) 0.3 ppb (0) N/A 13.0 ppb (12) N/A N/A 17.0 ppb (13) 0.46 ppb (5) 12.0 μg/m3 (11) 16.2 μg/m3 (59) 59.0
 
Jan. 12, 2019, 5 a.m. 11.4 ppb (11) 0.2 ppb (0) N/A 11.0 ppb (10) N/A N/A 18.0 ppb (14) 0.4 ppb (4) 11.0 μg/m3 (10) 10.7 μg/m3 (45) 45.0
 
Jan. 12, 2019, 4 a.m. 19.8 ppb (18) 1.2 ppb (1) N/A 19.0 ppb (18) N/A N/A 6.0 ppb (5) 0.54 ppb (6) 20.0 μg/m3 (18) 26.3 μg/m3 (80) 80.0
 
Jan. 12, 2019, 3 a.m. 21.5 ppb (20) 1.4 ppb (1) N/A 20.0 ppb (19) N/A N/A 5.0 ppb (4) 0.55 ppb (6) 23.0 μg/m3 (21) 15.7 μg/m3 (58) 58.0
 
Jan. 12, 2019, 2 a.m. 25.2 ppb (23) 1.0 ppb (1) N/A 24.0 ppb (22) N/A N/A 7.0 ppb (5) 0.58 ppb (6) 37.0 μg/m3 (34) 24.4 μg/m3 (76) 76.0
 
Jan. 12, 2019, 1 a.m. 29.5 ppb (27) 0.9 ppb (1) N/A 29.0 ppb (27) N/A N/A 10.0 ppb (8) 0.65 ppb (7) 40.0 μg/m3 (36) 28.7 μg/m3 (86) 86.0
 
Jan. 12, 2019, midnight 34.0 ppb (31) 3.7 ppb (3) N/A 30.0 ppb (28) N/A N/A 10.0 ppb (8) 0.64 ppb (7) 45.0 μg/m3 (41) 30.2 μg/m3 (89) 89.0
 
Jan. 11, 2019, 11 p.m. 39.2 ppb (36) 8.6 ppb (8) N/A 31.0 ppb (29) N/A N/A 13.0 ppb (10) 0.59 ppb (7) 43.0 μg/m3 (39) 25.8 μg/m3 (79) 79.0
 
Jan. 11, 2019, 10 p.m. 46.7 ppb (43) 14.6 ppb (14) N/A 32.0 ppb (30) N/A N/A 14.0 ppb (11) 0.6 ppb (7) 32.0 μg/m3 (29) 21.4 μg/m3 (70) 70.0
 
Jan. 11, 2019, 9 p.m. 59.7 ppb (56) 24.0 ppb (22) N/A 36.0 ppb (33) N/A N/A 11.0 ppb (8) 0.66 ppb (7) 37.0 μg/m3 (34) 18.8 μg/m3 (64) 64.0
 
Jan. 11, 2019, 8 p.m. 62.7 ppb (59) 29.6 ppb (27) N/A 33.0 ppb (31) N/A N/A 8.0 ppb (6) 0.76 ppb (8) 63.0 μg/m3 (54) 22.0 μg/m3 (71) 71.0
 
Jan. 11, 2019, 7 p.m. 77.0 ppb (74) 45.1 ppb (42) N/A 32.0 ppb (30) N/A N/A 6.0 ppb (5) 0.86 ppb (10) 44.0 μg/m3 (40) 30.4 μg/m3 (89) 89.0
 
Jan. 11, 2019, 6 p.m. 69.5 ppb (66) 43.3 ppb (40) N/A 26.0 ppb (24) N/A N/A 4.0 ppb (3) 0.83 ppb (9) 45.0 μg/m3 (41) 28.0 μg/m3 (84) 84.0
 
Jan. 11, 2019, 5 p.m. 54.1 ppb (50) 33.5 ppb (31) N/A 21.0 ppb (19) N/A N/A 2.0 ppb (2) 0.72 ppb (8) 35.0 μg/m3 (32) 21.8 μg/m3 (71) 71.0
 
Jan. 11, 2019, 4 p.m. 61.9 ppb (58) 39.9 ppb (37) N/A 22.0 ppb (20) N/A N/A 1.0 ppb (1) 0.74 ppb (8) 30.0 μg/m3 (27) 28.3 μg/m3 (85) 85.0
 
Jan. 11, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 20.4 μg/m3 (68) 68.0
 
Jan. 11, 2019, 2 p.m. 7.2 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A N/A 16.0 ppb (12) 0.32 ppb (4) 10.0 μg/m3 (9) 10.4 μg/m3 (43) 43.0
 
Jan. 11, 2019, 1 p.m. 10.6 ppb (10) 1.6 ppb (1) N/A 9.0 ppb (8) N/A N/A 5.0 ppb (4) 0.36 ppb (4) 12.0 μg/m3 (11) 12.2 μg/m3 (50) 50.0
 
Jan. 11, 2019, noon 11.3 ppb (10) 1.9 ppb (2) N/A 9.0 ppb (8) N/A N/A 1.0 ppb (1) 0.37 ppb (4) 12.0 μg/m3 (11) 17.2 μg/m3 (61) 61.0
 
Jan. 11, 2019, 11 a.m. 11.2 ppb (10) 1.0 ppb (1) N/A 10.0 ppb (9) N/A N/A 1.0 ppb (1) 0.41 ppb (5) 12.0 μg/m3 (11) 18.2 μg/m3 (63) 63.0
 
Jan. 11, 2019, 10 a.m. 14.2 ppb (13) 0.6 ppb (1) N/A 14.0 ppb (13) N/A N/A 2.0 ppb (2) 0.44 ppb (5) 12.0 μg/m3 (11) 13.7 μg/m3 (54) 54.0
 
Jan. 11, 2019, 9 a.m. 13.9 ppb (13) 0.9 ppb (1) N/A 13.0 ppb (12) N/A N/A 3.0 ppb (2) 0.44 ppb (5) 21.0 μg/m3 (19) 19.5 μg/m3 (66) 66.0
 
Jan. 11, 2019, 8 a.m. 11.3 ppb (10) 0.9 ppb (1) N/A 10.0 ppb (9) N/A N/A 3.0 ppb (2) 0.43 ppb (5) 13.0 μg/m3 (12) 19.8 μg/m3 (67) 67.0
 
Jan. 11, 2019, 7 a.m. 13.8 ppb (13) 1.2 ppb (1) N/A 13.0 ppb (12) N/A N/A 3.0 ppb (2) 0.5 ppb (6) 28.0 μg/m3 (25) 20.4 μg/m3 (68) 68.0
 
Jan. 11, 2019, 6 a.m. 11.0 ppb (10) 0.6 ppb (1) N/A 10.0 ppb (9) N/A N/A 6.0 ppb (5) 0.47 ppb (5) 9.0 μg/m3 (8) 22.3 μg/m3 (72) 72.0
 
Jan. 11, 2019, 5 a.m. 15.8 ppb (15) 1.9 ppb (2) N/A 14.0 ppb (13) N/A N/A 3.0 ppb (2) 0.59 ppb (7) 21.0 μg/m3 (19) 17.4 μg/m3 (61) 61.0
 
Jan. 11, 2019, 4 a.m. 17.1 ppb (16) 1.6 ppb (1) N/A 16.0 ppb (15) N/A N/A 3.0 ppb (2) 0.53 ppb (6) 24.0 μg/m3 (22) 17.5 μg/m3 (62) 62.0
 
Jan. 11, 2019, 3 a.m. 19.9 ppb (18) 1.3 ppb (1) N/A 19.0 ppb (18) N/A N/A 5.0 ppb (4) 0.53 ppb (6) 18.0 μg/m3 (16) 21.6 μg/m3 (70) 70.0
 
Jan. 11, 2019, 2 a.m. 21.5 ppb (20) 0.8 ppb (1) N/A 21.0 ppb (19) N/A N/A 7.0 ppb (5) 0.59 ppb (7) 31.0 μg/m3 (28) 23.6 μg/m3 (75) 75.0
 
Jan. 11, 2019, 1 a.m. 27.6 ppb (26) 0.8 ppb (1) N/A 27.0 ppb (25) N/A N/A 9.0 ppb (7) 0.61 ppb (7) 30.0 μg/m3 (27) 26.6 μg/m3 (81) 81.0
 
Jan. 11, 2019, midnight 29.5 ppb (27) 1.7 ppb (2) N/A 28.0 ppb (26) N/A N/A 16.0 ppb (12) 0.59 ppb (7) 40.0 μg/m3 (36) 23.3 μg/m3 (74) 74.0
 
Jan. 10, 2019, 11 p.m. 22.4 ppb (21) 2.9 ppb (3) N/A 19.0 ppb (18) N/A N/A 25.0 ppb (19) 0.52 ppb (6) 34.0 μg/m3 (31) 16.5 μg/m3 (60) 60.0
 
Jan. 10, 2019, 10 p.m. 20.6 ppb (19) 4.1 ppb (4) N/A 17.0 ppb (16) N/A N/A 29.0 ppb (22) 0.5 ppb (6) 27.0 μg/m3 (25) 15.2 μg/m3 (57) 57.0
 
Jan. 10, 2019, 9 p.m. 16.8 ppb (16) 4.3 ppb (4) N/A 13.0 ppb (12) N/A N/A 29.0 ppb (22) 0.46 ppb (5) 31.0 μg/m3 (28) 16.9 μg/m3 (60) 60.0
 
Jan. 10, 2019, 8 p.m. 29.3 ppb (27) 10.3 ppb (10) N/A 19.0 ppb (18) N/A N/A 21.0 ppb (16) 0.55 ppb (6) 40.0 μg/m3 (36) 21.3 μg/m3 (70) 70.0
 
Jan. 10, 2019, 7 p.m. 39.1 ppb (36) 16.0 ppb (15) N/A 23.0 ppb (21) N/A N/A 16.0 ppb (12) 0.61 ppb (7) 41.0 μg/m3 (37) 23.1 μg/m3 (74) 74.0
 
Jan. 10, 2019, 6 p.m. 37.9 ppb (35) 16.4 ppb (15) N/A 21.0 ppb (19) N/A N/A 13.0 ppb (10) 0.57 ppb (6) 42.0 μg/m3 (38) 20.8 μg/m3 (69) 69.0
 
Jan. 10, 2019, 5 p.m. 32.4 ppb (30) 13.2 ppb (12) N/A 19.0 ppb (18) N/A N/A 11.0 ppb (8) 0.51 ppb (6) 37.0 μg/m3 (34) 17.9 μg/m3 (63) 63.0
 
Jan. 10, 2019, 4 p.m. 21.7 ppb (20) 8.8 ppb (8) N/A 13.0 ppb (12) N/A N/A 11.0 ppb (8) 0.43 ppb (5) 14.0 μg/m3 (13) 10.8 μg/m3 (45) 45.0
 
Jan. 10, 2019, 3 p.m. 17.0 ppb (16) 5.4 ppb (5) N/A 12.0 ppb (11) N/A N/A 7.0 ppb (5) 0.36 ppb (4) 15.0 μg/m3 (14) 10.0 μg/m3 (42) 42.0
 
Jan. 10, 2019, 2 p.m. 24.5 ppb (23) 5.2 ppb (5) N/A 19.0 ppb (18) N/A N/A 1.0 ppb (1) 0.42 ppb (5) 9.0 μg/m3 (8) 12.5 μg/m3 (51) 51.0
 
Jan. 10, 2019, 1 p.m. 7.7 ppb (7) 0.3 ppb (0) N/A 7.0 ppb (6) N/A N/A 13.0 ppb (10) 0.29 ppb (3) 7.0 μg/m3 (6) 7.5 μg/m3 (31) 31.0
 
Jan. 10, 2019, noon 5.6 ppb (5) -0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 15.0 ppb (12) 0.3 ppb (3) 17.0 μg/m3 (15) 12.0 μg/m3 (50) 50.0
 
Jan. 10, 2019, 11 a.m. 5.2 ppb (5) -0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 14.0 ppb (11) 0.32 ppb (4) 4.0 μg/m3 (4) 3.1 μg/m3 (13) 13.0
 
Jan. 10, 2019, 10 a.m. 7.8 ppb (7) -0.1 ppb (0) N/A 8.0 ppb (7) N/A N/A 12.0 ppb (9) 0.34 ppb (4) 3.0 μg/m3 (3) 6.0 μg/m3 (25) 25.0
 
Jan. 10, 2019, 9 a.m. 4.8 ppb (4) -0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 20.0 ppb (15) 0.34 ppb (4) 5.0 μg/m3 (5) 7.8 μg/m3 (32) 32.0
 
Jan. 10, 2019, 8 a.m. 5.3 ppb (5) -0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 18.0 ppb (14) 0.34 ppb (4) 6.0 μg/m3 (5) 12.0 μg/m3 (50) 50.0
 
Jan. 10, 2019, 7 a.m. 10.6 ppb (10) -0.1 ppb (0) N/A 11.0 ppb (10) N/A N/A 14.0 ppb (11) 0.42 ppb (5) 6.0 μg/m3 (5) 13.5 μg/m3 (53) 53.0