AQSQID: 060370002

Site Name: Azusa

Location: Azusa, CA

Reporting: True, Located: True

Current AQI: 33.0

Azusa CA, US: 34.135601, -117.922798

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 21, 2019, 1 a.m. 12.6 ppb (12) 0.6 ppb (1) N/A 12.0 ppb (11) N/A N/A 43.0 ppb (33) 0.27 ppb (3) N/A N/A 33.0
 
Sept. 21, 2019, midnight 13.4 ppb (12) 1.5 ppb (1) N/A 12.0 ppb (11) N/A N/A 48.0 ppb (37) 0.28 ppb (3) N/A N/A 37.0
 
Sept. 20, 2019, 11 p.m. 16.2 ppb (15) 2.4 ppb (2) N/A 14.0 ppb (13) N/A N/A 47.0 ppb (36) 0.28 ppb (3) N/A N/A 36.0
 
Sept. 20, 2019, 10 p.m. 16.9 ppb (16) 2.3 ppb (2) N/A 15.0 ppb (14) N/A N/A 57.0 ppb (44) 0.31 ppb (3) N/A N/A 44.0
 
Sept. 20, 2019, 9 p.m. 10.9 ppb (10) 1.6 ppb (1) N/A 9.0 ppb (8) N/A N/A 57.0 ppb (44) 0.25 ppb (3) N/A N/A 44.0
 
Sept. 20, 2019, 8 p.m. 9.4 ppb (9) 1.5 ppb (1) N/A 8.0 ppb (7) N/A N/A 54.0 ppb (42) 0.23 ppb (3) N/A N/A 42.0
 
Sept. 20, 2019, 7 p.m. 8.9 ppb (8) 1.5 ppb (1) N/A 7.0 ppb (6) N/A N/A 51.0 ppb (39) 0.22 ppb (2) N/A N/A 39.0
 
Sept. 20, 2019, 6 p.m. 10.7 ppb (10) 2.5 ppb (2) N/A 8.0 ppb (7) N/A N/A 39.0 ppb (30) 0.24 ppb (3) N/A N/A 30.0
 
Sept. 20, 2019, 5 p.m. 12.8 ppb (12) 3.9 ppb (4) N/A 9.0 ppb (8) N/A N/A 31.0 ppb (24) 0.24 ppb (3) N/A N/A 24.0
 
Sept. 20, 2019, 4 p.m. 13.2 ppb (12) 4.1 ppb (4) N/A 9.0 ppb (8) N/A N/A 25.0 ppb (19) 0.24 ppb (3) N/A N/A 19.0
 
Sept. 19, 2019, 4 p.m. 13.3 ppb (12) 3.7 ppb (3) N/A 10.0 ppb (9) N/A N/A 26.0 ppb (20) 0.26 ppb (3) N/A N/A 20.0
 
Sept. 19, 2019, 3 p.m. 12.8 ppb (12) 3.7 ppb (3) N/A 9.0 ppb (8) N/A N/A 22.0 ppb (17) 0.29 ppb (3) N/A N/A 17.0
 
Sept. 19, 2019, 2 p.m. 10.1 ppb (9) 2.4 ppb (2) N/A 8.0 ppb (7) N/A N/A 21.0 ppb (16) 0.27 ppb (3) N/A N/A 16.0
 
Sept. 19, 2019, 1 p.m. 11.6 ppb (11) 2.6 ppb (2) N/A 9.0 ppb (8) N/A N/A 19.0 ppb (15) 0.25 ppb (3) N/A N/A 15.0
 
Sept. 19, 2019, noon 14.8 ppb (14) 3.7 ppb (3) N/A 11.0 ppb (10) N/A N/A 16.0 ppb (12) 0.26 ppb (3) N/A N/A 14.0
 
Sept. 19, 2019, 11 a.m. 9.2 ppb (9) 1.2 ppb (1) N/A 8.0 ppb (7) N/A N/A 19.0 ppb (15) 0.25 ppb (3) N/A N/A 15.0
 
Sept. 19, 2019, 10 a.m. 11.2 ppb (10) 1.3 ppb (1) N/A 10.0 ppb (9) N/A N/A 15.0 ppb (12) 0.26 ppb (3) N/A N/A 12.0
 
Sept. 19, 2019, 9 a.m. 9.9 ppb (9) 1.1 ppb (1) N/A 9.0 ppb (8) N/A N/A 18.0 ppb (14) 0.25 ppb (3) N/A N/A 14.0
 
Sept. 19, 2019, 8 a.m. 12.0 ppb (11) 1.2 ppb (1) N/A 11.0 ppb (10) N/A N/A 15.0 ppb (12) 0.27 ppb (3) N/A N/A 12.0
 
Sept. 19, 2019, 7 a.m. 12.5 ppb (12) 1.1 ppb (1) N/A 11.0 ppb (10) N/A N/A 17.0 ppb (13) 0.27 ppb (3) N/A N/A 13.0
 
Sept. 19, 2019, 6 a.m. 11.4 ppb (11) 0.9 ppb (1) N/A 11.0 ppb (10) N/A N/A 18.0 ppb (14) 0.26 ppb (3) N/A N/A 14.0
 
Sept. 19, 2019, 5 a.m. 24.3 ppb (23) 1.4 ppb (1) N/A 23.0 ppb (21) N/A N/A 13.0 ppb (10) 0.31 ppb (3) N/A N/A 23.0
 
Sept. 19, 2019, 4 a.m. 25.5 ppb (24) 1.5 ppb (1) N/A 24.0 ppb (22) N/A N/A 13.0 ppb (10) 0.32 ppb (4) N/A N/A 24.0
 
Sept. 19, 2019, 3 a.m. 20.8 ppb (19) 0.8 ppb (1) N/A 20.0 ppb (19) N/A N/A 17.0 ppb (13) 0.3 ppb (3) N/A N/A 19.0
 
Sept. 19, 2019, 2 a.m. 15.9 ppb (15) 0.6 ppb (1) N/A 15.0 ppb (14) N/A N/A 28.0 ppb (22) 0.31 ppb (3) N/A N/A 22.0
 
Sept. 19, 2019, 1 a.m. 15.2 ppb (14) 0.9 ppb (1) N/A 14.0 ppb (13) N/A N/A 34.0 ppb (26) 0.29 ppb (3) N/A N/A 26.0
 
Sept. 19, 2019, midnight 12.5 ppb (12) 1.4 ppb (1) N/A 11.0 ppb (10) N/A N/A 43.0 ppb (33) 0.27 ppb (3) N/A N/A 33.0
 
Sept. 18, 2019, 11 p.m. 10.7 ppb (10) 1.5 ppb (1) N/A 9.0 ppb (8) N/A N/A 52.0 ppb (40) 0.28 ppb (3) N/A N/A 40.0
 
Sept. 18, 2019, 10 p.m. 10.3 ppb (10) 1.4 ppb (1) N/A 9.0 ppb (8) N/A N/A 58.0 ppb (45) 0.25 ppb (3) N/A N/A 45.0
 
Sept. 18, 2019, 9 p.m. 9.9 ppb (9) 1.4 ppb (1) N/A 9.0 ppb (8) N/A N/A 60.0 ppb (46) 0.25 ppb (3) N/A N/A 46.0
 
Sept. 18, 2019, 8 p.m. 10.6 ppb (10) 1.7 ppb (2) N/A 9.0 ppb (8) N/A N/A 57.0 ppb (44) 0.25 ppb (3) N/A N/A 44.0
 
Sept. 18, 2019, 7 p.m. 14.7 ppb (14) 3.1 ppb (3) N/A 12.0 ppb (11) N/A N/A 47.0 ppb (36) 0.27 ppb (3) N/A N/A 36.0
 
Sept. 18, 2019, 6 p.m. 15.3 ppb (14) 3.5 ppb (3) N/A 12.0 ppb (11) N/A N/A 41.0 ppb (32) 0.28 ppb (3) N/A N/A 32.0
 
Sept. 18, 2019, 5 p.m. 20.0 ppb (19) 5.4 ppb (5) N/A 15.0 ppb (14) N/A N/A 33.0 ppb (25) 0.35 ppb (4) N/A N/A 25.0
 
Sept. 18, 2019, 4 p.m. 39.3 ppb (36) 15.4 ppb (14) N/A 24.0 ppb (22) N/A N/A 18.0 ppb (14) 0.44 ppb (5) N/A N/A 36.0
 
Sept. 18, 2019, 3 p.m. 41.4 ppb (38) 17.9 ppb (17) N/A 23.0 ppb (21) N/A N/A 11.0 ppb (8) 0.55 ppb (6) N/A N/A 38.0
 
Sept. 18, 2019, 2 p.m. 48.1 ppb (45) 24.2 ppb (22) N/A 24.0 ppb (22) N/A N/A 4.0 ppb (3) 0.62 ppb (7) N/A N/A 45.0
 
Sept. 18, 2019, 1 p.m. 37.9 ppb (35) 11.6 ppb (11) N/A 26.0 ppb (24) N/A N/A 3.0 ppb (2) 0.47 ppb (5) N/A N/A 35.0
 
Sept. 18, 2019, noon 23.6 ppb (22) 4.5 ppb (4) N/A 19.0 ppb (18) N/A N/A 12.0 ppb (9) 0.36 ppb (4) N/A N/A 22.0
 
Sept. 18, 2019, 11 a.m. 17.7 ppb (16) 3.9 ppb (4) N/A 14.0 ppb (13) N/A N/A 14.0 ppb (11) 0.33 ppb (4) N/A N/A 16.0
 
Sept. 18, 2019, 10 a.m. 18.5 ppb (17) 2.5 ppb (2) N/A 16.0 ppb (15) N/A N/A 12.0 ppb (9) 0.31 ppb (3) N/A N/A 17.0
 
Sept. 18, 2019, 9 a.m. 19.8 ppb (18) 2.4 ppb (2) N/A 17.0 ppb (16) N/A N/A 7.0 ppb (5) 0.34 ppb (4) N/A N/A 18.0
 
Sept. 18, 2019, 8 a.m. 20.9 ppb (19) 2.1 ppb (2) N/A 19.0 ppb (18) N/A N/A 9.0 ppb (7) 0.34 ppb (4) N/A N/A 19.0
 
Sept. 18, 2019, 7 a.m. 20.4 ppb (19) 1.8 ppb (2) N/A 19.0 ppb (18) N/A N/A 13.0 ppb (10) 0.32 ppb (4) N/A N/A 19.0
 
Sept. 18, 2019, 6 a.m. 28.3 ppb (26) 2.4 ppb (2) N/A 26.0 ppb (24) N/A N/A 9.0 ppb (7) 0.33 ppb (4) N/A N/A 26.0
 
Sept. 18, 2019, 5 a.m. 21.9 ppb (20) 1.5 ppb (1) N/A 20.0 ppb (19) N/A N/A 15.0 ppb (12) 0.31 ppb (3) N/A N/A 20.0
 
Sept. 18, 2019, 4 a.m. 21.7 ppb (20) 1.2 ppb (1) N/A 20.0 ppb (19) N/A N/A 21.0 ppb (16) 0.31 ppb (3) N/A N/A 20.0
 
Sept. 18, 2019, 3 a.m. 19.9 ppb (18) 0.9 ppb (1) N/A 19.0 ppb (18) N/A N/A 27.0 ppb (21) 0.31 ppb (3) N/A N/A 21.0
 
Sept. 18, 2019, 2 a.m. 14.7 ppb (14) 0.6 ppb (1) N/A 14.0 ppb (13) N/A N/A 41.0 ppb (32) 0.3 ppb (3) N/A N/A 32.0
 
Sept. 18, 2019, midnight 12.1 ppb (11) 1.1 ppb (1) N/A 11.0 ppb (10) N/A N/A 50.0 ppb (38) 0.24 ppb (3) N/A N/A 38.0
 
Sept. 17, 2019, 11 p.m. 10.9 ppb (10) 1.4 ppb (1) N/A 10.0 ppb (9) N/A N/A 51.0 ppb (39) 0.23 ppb (3) N/A N/A 39.0
 
Sept. 17, 2019, 10 p.m. 10.2 ppb (9) 1.4 ppb (1) N/A 9.0 ppb (8) N/A N/A 57.0 ppb (44) 0.23 ppb (3) N/A N/A 44.0
 
Sept. 17, 2019, 9 p.m. 8.6 ppb (8) 1.3 ppb (1) N/A 7.0 ppb (6) N/A N/A 57.0 ppb (44) 0.23 ppb (3) N/A N/A 44.0
 
Sept. 17, 2019, 8 p.m. 10.6 ppb (10) 1.7 ppb (2) N/A 9.0 ppb (8) N/A N/A 54.0 ppb (42) 0.24 ppb (3) N/A N/A 42.0
 
Sept. 17, 2019, 7 p.m. 15.6 ppb (14) 3.2 ppb (3) N/A 12.0 ppb (11) N/A N/A 45.0 ppb (35) 0.28 ppb (3) N/A N/A 35.0
 
Sept. 17, 2019, 6 p.m. 18.3 ppb (17) 4.6 ppb (4) N/A 14.0 ppb (13) N/A N/A 37.0 ppb (28) 0.32 ppb (4) N/A N/A 28.0
 
Sept. 17, 2019, 5 p.m. 23.4 ppb (22) 6.9 ppb (6) N/A 16.0 ppb (15) N/A N/A 29.0 ppb (22) 0.37 ppb (4) N/A N/A 22.0
 
Sept. 17, 2019, 4 p.m. 31.5 ppb (29) 11.7 ppb (11) N/A 20.0 ppb (19) N/A N/A 19.0 ppb (15) 0.39 ppb (4) N/A N/A 29.0
 
Sept. 17, 2019, 3 p.m. 25.8 ppb (24) 9.3 ppb (9) N/A 17.0 ppb (16) N/A N/A 17.0 ppb (13) 0.42 ppb (5) N/A N/A 24.0
 
Sept. 17, 2019, 2 p.m. 27.6 ppb (26) 9.8 ppb (9) N/A 18.0 ppb (17) N/A N/A 9.0 ppb (7) 0.42 ppb (5) N/A N/A 26.0
 
Sept. 17, 2019, 1 p.m. 23.2 ppb (21) 5.4 ppb (5) N/A 18.0 ppb (17) N/A N/A 6.0 ppb (5) 0.39 ppb (4) N/A N/A 21.0
 
Sept. 17, 2019, noon 18.7 ppb (17) 6.7 ppb (6) N/A 12.0 ppb (11) N/A N/A 17.0 ppb (13) 0.27 ppb (3) N/A N/A 17.0
 
Sept. 17, 2019, 11 a.m. 13.1 ppb (12) 1.8 ppb (2) N/A 11.0 ppb (10) N/A N/A 18.0 ppb (14) 0.26 ppb (3) N/A N/A 14.0
 
Sept. 17, 2019, 10 a.m. 18.3 ppb (17) 2.0 ppb (2) N/A 16.0 ppb (15) N/A N/A 10.0 ppb (8) 0.3 ppb (3) N/A N/A 17.0
 
Sept. 17, 2019, 9 a.m. 20.2 ppb (19) 2.2 ppb (2) N/A 18.0 ppb (17) N/A N/A 11.0 ppb (8) 0.3 ppb (3) N/A N/A 19.0
 
Sept. 17, 2019, 8 a.m. 22.1 ppb (20) 2.3 ppb (2) N/A 20.0 ppb (19) N/A N/A 9.0 ppb (7) 0.33 ppb (4) N/A N/A 20.0
 
Sept. 17, 2019, 7 a.m. 16.2 ppb (15) 1.8 ppb (2) N/A 14.0 ppb (13) N/A N/A 14.0 ppb (11) 0.32 ppb (4) N/A N/A 15.0
 
Sept. 17, 2019, 6 a.m. 17.2 ppb (16) 1.6 ppb (1) N/A 16.0 ppb (15) N/A N/A 15.0 ppb (12) 0.34 ppb (4) N/A N/A 16.0
 
Sept. 17, 2019, 5 a.m. 18.1 ppb (17) 1.3 ppb (1) N/A 17.0 ppb (16) N/A N/A 20.0 ppb (15) 0.31 ppb (3) N/A N/A 17.0
 
Sept. 17, 2019, 4 a.m. 17.6 ppb (16) 1.1 ppb (1) N/A 17.0 ppb (16) N/A N/A 23.0 ppb (18) 0.3 ppb (3) N/A N/A 18.0
 
Sept. 17, 2019, 3 a.m. 19.9 ppb (18) 1.2 ppb (1) N/A 19.0 ppb (18) N/A N/A 27.0 ppb (21) 0.31 ppb (3) N/A N/A 21.0
 
Sept. 17, 2019, 2 a.m. 20.1 ppb (19) 0.7 ppb (1) N/A 19.0 ppb (18) N/A N/A 35.0 ppb (27) 0.32 ppb (4) N/A N/A 27.0
 
Sept. 17, 2019, 1 a.m. 16.6 ppb (15) 0.7 ppb (1) N/A 16.0 ppb (15) N/A N/A 47.0 ppb (36) 0.3 ppb (3) N/A N/A 36.0
 
Sept. 17, 2019, midnight 13.7 ppb (13) 1.1 ppb (1) N/A 13.0 ppb (12) N/A N/A 51.0 ppb (39) 0.25 ppb (3) N/A N/A 39.0
 
Sept. 16, 2019, 11 p.m. 8.6 ppb (8) 0.9 ppb (1) N/A 8.0 ppb (7) N/A N/A 60.0 ppb (46) 0.22 ppb (2) N/A N/A 46.0
 
Sept. 16, 2019, 10 p.m. 9.1 ppb (8) 1.1 ppb (1) N/A 8.0 ppb (7) N/A N/A 58.0 ppb (45) 0.23 ppb (3) N/A N/A 45.0
 
Sept. 16, 2019, 9 p.m. 12.4 ppb (11) 1.8 ppb (2) N/A 11.0 ppb (10) N/A N/A 58.0 ppb (45) 0.27 ppb (3) N/A N/A 45.0
 
Sept. 16, 2019, 8 p.m. 18.4 ppb (17) 3.1 ppb (3) N/A 15.0 ppb (14) N/A N/A 55.0 ppb (42) 0.33 ppb (4) N/A N/A 42.0
 
Sept. 16, 2019, 7 p.m. 26.9 ppb (25) 6.1 ppb (6) N/A 21.0 ppb (19) N/A N/A 44.0 ppb (34) 0.42 ppb (5) N/A N/A 34.0
 
Sept. 16, 2019, 6 p.m. 33.0 ppb (31) 9.3 ppb (9) N/A 24.0 ppb (22) N/A N/A 33.0 ppb (25) 0.52 ppb (6) N/A N/A 31.0
 
Sept. 16, 2019, 5 p.m. 43.2 ppb (40) 14.4 ppb (13) N/A 29.0 ppb (27) N/A N/A 18.0 ppb (14) 0.57 ppb (6) N/A N/A 40.0
 
Sept. 16, 2019, 4 p.m. 51.2 ppb (47) 21.0 ppb (19) N/A 30.0 ppb (28) N/A N/A 11.0 ppb (8) 0.65 ppb (7) N/A N/A 47.0
 
Sept. 16, 2019, 3 p.m. 45.0 ppb (42) 20.3 ppb (19) N/A 25.0 ppb (23) N/A N/A 8.0 ppb (6) 0.68 ppb (8) N/A N/A 42.0
 
Sept. 16, 2019, 2 p.m. 52.9 ppb (49) 27.5 ppb (25) N/A 25.0 ppb (23) N/A N/A 2.0 ppb (2) 0.8 ppb (9) N/A N/A 49.0
 
Sept. 16, 2019, 1 p.m. 57.1 ppb (53) 28.3 ppb (26) N/A 29.0 ppb (27) N/A N/A 1.0 ppb (1) 0.68 ppb (8) N/A N/A 53.0
 
Sept. 16, 2019, noon 41.9 ppb (39) 15.0 ppb (14) N/A 27.0 ppb (25) N/A N/A 1.0 ppb (1) 0.55 ppb (6) N/A N/A 39.0
 
Sept. 16, 2019, 11 a.m. 32.6 ppb (30) 5.7 ppb (5) N/A 27.0 ppb (25) N/A N/A 3.0 ppb (2) 0.45 ppb (5) N/A N/A 30.0
 
Sept. 16, 2019, 10 a.m. 29.7 ppb (28) 6.1 ppb (6) N/A 24.0 ppb (22) N/A N/A 4.0 ppb (3) 0.46 ppb (5) N/A N/A 28.0
 
Sept. 16, 2019, 9 a.m. 27.4 ppb (25) 3.2 ppb (3) N/A 24.0 ppb (22) N/A N/A 4.0 ppb (3) 0.46 ppb (5) N/A N/A 25.0
 
Sept. 16, 2019, 8 a.m. 28.1 ppb (26) 3.0 ppb (3) N/A 25.0 ppb (23) N/A N/A 5.0 ppb (4) 0.45 ppb (5) N/A N/A 26.0
 
Sept. 16, 2019, 7 a.m. 25.1 ppb (23) 2.4 ppb (2) N/A 23.0 ppb (21) N/A N/A 12.0 ppb (9) 0.43 ppb (5) N/A N/A 23.0
 
Sept. 16, 2019, 6 a.m. 18.8 ppb (17) 1.6 ppb (1) N/A 17.0 ppb (16) N/A N/A 20.0 ppb (15) 0.42 ppb (5) N/A N/A 17.0
 
Sept. 16, 2019, 5 a.m. 28.9 ppb (27) 1.8 ppb (2) N/A 27.0 ppb (25) N/A N/A 12.0 ppb (9) 0.49 ppb (5) N/A N/A 27.0
 
Sept. 16, 2019, 4 a.m. 27.5 ppb (25) 1.5 ppb (1) N/A 26.0 ppb (24) N/A N/A 17.0 ppb (13) 0.48 ppb (5) N/A N/A 25.0
 
Sept. 16, 2019, 3 a.m. 21.2 ppb (20) 1.0 ppb (1) N/A 20.0 ppb (19) N/A N/A 27.0 ppb (21) 0.41 ppb (5) N/A N/A 21.0
 
Sept. 16, 2019, 2 a.m. 19.5 ppb (18) 0.9 ppb (1) N/A 19.0 ppb (18) N/A N/A 34.0 ppb (26) 0.37 ppb (4) N/A N/A 26.0
 
Sept. 16, 2019, 1 a.m. 14.7 ppb (14) 0.6 ppb (1) N/A 14.0 ppb (13) N/A N/A 53.0 ppb (41) 0.33 ppb (4) N/A N/A 41.0
 
Sept. 16, 2019, midnight 13.5 ppb (12) 0.9 ppb (1) N/A 13.0 ppb (12) N/A N/A 65.0 ppb (50) 0.33 ppb (4) N/A N/A 50.0
 
Sept. 15, 2019, 11 p.m. 6.9 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A 73.0 ppb (57) 0.27 ppb (3) N/A N/A 57.0
 
Sept. 15, 2019, 10 p.m. 7.9 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A N/A 83.0 ppb (65) 0.32 ppb (4) N/A N/A 65.0
 
Sept. 15, 2019, 9 p.m. 7.5 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A N/A 89.0 ppb (70) 0.32 ppb (4) N/A N/A 70.0
 
Sept. 15, 2019, 8 p.m. 10.2 ppb (9) 0.7 ppb (1) N/A 9.0 ppb (8) N/A N/A 88.0 ppb (69) 0.37 ppb (4) N/A N/A 69.0
 
Sept. 15, 2019, 7 p.m. 11.1 ppb (10) 1.1 ppb (1) N/A 10.0 ppb (9) N/A N/A 80.0 ppb (62) 0.38 ppb (4) N/A N/A 62.0
 
Sept. 15, 2019, 6 p.m. 20.0 ppb (19) 2.7 ppb (3) N/A 17.0 ppb (16) N/A N/A 61.0 ppb (47) 0.48 ppb (5) N/A N/A 47.0
 
Sept. 15, 2019, 5 p.m. 31.3 ppb (29) 7.0 ppb (6) N/A 24.0 ppb (22) N/A N/A 38.0 ppb (29) 0.57 ppb (6) N/A N/A 29.0
 
Sept. 15, 2019, 4 p.m. 34.0 ppb (31) 8.0 ppb (7) N/A 26.0 ppb (24) N/A N/A 21.0 ppb (16) 0.6 ppb (7) N/A N/A 31.0
 
Sept. 15, 2019, 3 p.m. 37.1 ppb (34) 10.1 ppb (9) N/A 27.0 ppb (25) N/A N/A 14.0 ppb (11) 0.62 ppb (7) N/A N/A 34.0
 
Sept. 15, 2019, 2 p.m. 32.7 ppb (30) 7.2 ppb (7) N/A 25.0 ppb (23) N/A N/A 10.0 ppb (8) 0.54 ppb (6) N/A N/A 30.0
 
Sept. 15, 2019, 1 p.m. 32.5 ppb (30) 8.2 ppb (8) N/A 24.0 ppb (22) N/A N/A 15.0 ppb (12) 0.48 ppb (5) N/A N/A 30.0
 
Sept. 15, 2019, noon 20.2 ppb (19) 1.6 ppb (1) N/A 19.0 ppb (18) N/A N/A 16.0 ppb (12) 0.47 ppb (5) N/A N/A 19.0
 
Sept. 15, 2019, 11 a.m. 35.3 ppb (33) 5.2 ppb (5) N/A 30.0 ppb (28) N/A N/A 5.0 ppb (4) 0.59 ppb (7) N/A N/A 33.0
 
Sept. 15, 2019, 10 a.m. 31.9 ppb (30) 2.8 ppb (3) N/A 29.0 ppb (27) N/A N/A 7.0 ppb (5) 0.57 ppb (6) N/A N/A 30.0
 
Sept. 15, 2019, 9 a.m. 20.5 ppb (19) 1.6 ppb (1) N/A 19.0 ppb (18) N/A N/A 17.0 ppb (13) 0.49 ppb (5) N/A N/A 19.0
 
Sept. 15, 2019, 8 a.m. 35.2 ppb (33) 3.2 ppb (3) N/A 32.0 ppb (30) N/A N/A 9.0 ppb (7) 0.56 ppb (6) N/A N/A 33.0
 
Sept. 15, 2019, 7 a.m. 16.5 ppb (15) 1.4 ppb (1) N/A 15.0 ppb (14) N/A N/A 30.0 ppb (23) 0.41 ppb (5) N/A N/A 23.0
 
Sept. 15, 2019, 6 a.m. 20.1 ppb (19) 1.9 ppb (2) N/A 18.0 ppb (17) N/A N/A 28.0 ppb (22) 0.43 ppb (5) N/A N/A 22.0
 
Sept. 15, 2019, 5 a.m. 37.4 ppb (35) 2.2 ppb (2) N/A 35.0 ppb (32) N/A N/A 17.0 ppb (13) 0.51 ppb (6) N/A N/A 35.0
 
Sept. 15, 2019, 4 a.m. 16.6 ppb (15) 0.7 ppb (1) N/A 16.0 ppb (15) N/A N/A 40.0 ppb (31) 0.4 ppb (4) N/A N/A 31.0
 
Sept. 15, 2019, 3 a.m. 25.3 ppb (23) 0.8 ppb (1) N/A 24.0 ppb (22) N/A N/A 37.0 ppb (28) 0.38 ppb (4) N/A N/A 28.0
 
Sept. 15, 2019, 2 a.m. 19.5 ppb (18) 0.5 ppb (0) N/A 19.0 ppb (18) N/A N/A 49.0 ppb (38) 0.34 ppb (4) N/A N/A 38.0
 
Sept. 15, 2019, 1 a.m. 11.8 ppb (11) 0.9 ppb (1) N/A 11.0 ppb (10) N/A N/A 74.0 ppb (57) 0.32 ppb (4) N/A N/A 57.0
 
Sept. 15, 2019, midnight 10.3 ppb (10) 0.6 ppb (1) N/A 10.0 ppb (9) N/A N/A 86.0 ppb (68) 0.3 ppb (3) N/A N/A 68.0
 
Sept. 14, 2019, 11 p.m. 13.4 ppb (12) 0.8 ppb (1) N/A 13.0 ppb (12) N/A N/A 105.0 ppb (83) 0.36 ppb (4) N/A N/A 83.0
 
Sept. 14, 2019, 10 p.m. 13.8 ppb (13) 0.8 ppb (1) N/A 13.0 ppb (12) N/A N/A 124.0 ppb (99) 0.43 ppb (5) N/A N/A 99.0
 
Sept. 14, 2019, 9 p.m. 10.8 ppb (10) 0.7 ppb (1) N/A 10.0 ppb (9) N/A N/A 116.0 ppb (92) 0.4 ppb (4) N/A N/A 92.0
 
Sept. 14, 2019, 8 p.m. 13.0 ppb (12) 1.0 ppb (1) N/A 12.0 ppb (11) N/A N/A 99.0 ppb (78) 0.39 ppb (4) N/A N/A 78.0
 
Sept. 14, 2019, 7 p.m. 17.5 ppb (16) 1.8 ppb (2) N/A 16.0 ppb (15) N/A N/A 81.0 ppb (63) 0.4 ppb (4) N/A N/A 63.0
 
Sept. 14, 2019, 6 p.m. 24.0 ppb (22) 3.2 ppb (3) N/A 21.0 ppb (19) N/A N/A 65.0 ppb (50) 0.45 ppb (5) N/A N/A 50.0
 
Sept. 14, 2019, 5 p.m. 37.3 ppb (35) 7.4 ppb (7) N/A 30.0 ppb (28) N/A N/A 45.0 ppb (35) 0.53 ppb (6) N/A N/A 35.0
 
Sept. 14, 2019, 4 p.m. 50.1 ppb (46) 13.9 ppb (13) N/A 36.0 ppb (33) N/A N/A 28.0 ppb (22) 0.56 ppb (6) N/A N/A 46.0
 
Sept. 14, 2019, 3 p.m. 70.6 ppb (68) 31.2 ppb (29) N/A 39.0 ppb (36) N/A N/A 12.0 ppb (9) 0.73 ppb (8) N/A N/A 68.0
 
Sept. 14, 2019, 2 p.m. 57.7 ppb (54) 28.4 ppb (26) N/A 29.0 ppb (27) N/A N/A 5.0 ppb (4) 0.95 ppb (11) N/A N/A 54.0
 
Sept. 14, 2019, 1 p.m. 36.7 ppb (34) 7.5 ppb (7) N/A 29.0 ppb (27) N/A N/A 3.0 ppb (2) 0.61 ppb (7) N/A N/A 34.0
 
Sept. 14, 2019, noon 42.1 ppb (39) 11.0 ppb (10) N/A 31.0 ppb (29) N/A N/A 2.0 ppb (2) 0.62 ppb (7) N/A N/A 39.0
 
Sept. 14, 2019, 11 a.m. 37.4 ppb (35) 6.4 ppb (6) N/A 31.0 ppb (29) N/A N/A 2.0 ppb (2) 0.68 ppb (8) N/A N/A 35.0
 
Sept. 14, 2019, 10 a.m. 35.2 ppb (33) 6.2 ppb (6) N/A 29.0 ppb (27) N/A N/A 3.0 ppb (2) 0.57 ppb (6) N/A N/A 33.0
 
Sept. 14, 2019, 9 a.m. 51.5 ppb (48) 15.9 ppb (15) N/A 36.0 ppb (33) N/A N/A 1.0 ppb (1) 0.71 ppb (8) N/A N/A 48.0
 
Sept. 14, 2019, 8 a.m. 30.6 ppb (28) 2.9 ppb (3) N/A 28.0 ppb (26) N/A N/A 7.0 ppb (5) 0.53 ppb (6) N/A N/A 28.0
 
Sept. 14, 2019, 7 a.m. 37.1 ppb (34) 6.4 ppb (6) N/A 31.0 ppb (29) N/A N/A 5.0 ppb (4) 0.6 ppb (7) N/A N/A 34.0
 
Sept. 14, 2019, 6 a.m. 29.1 ppb (27) 2.8 ppb (3) N/A 26.0 ppb (24) N/A N/A 10.0 ppb (8) 0.5 ppb (6) N/A N/A 27.0
 
Sept. 14, 2019, 5 a.m. 34.2 ppb (32) 2.3 ppb (2) N/A 32.0 ppb (30) N/A N/A 9.0 ppb (7) 0.49 ppb (5) N/A N/A 32.0
 
Sept. 14, 2019, 4 a.m. 39.7 ppb (37) 2.6 ppb (2) N/A 37.0 ppb (34) N/A N/A 10.0 ppb (8) 0.48 ppb (5) N/A N/A 37.0
 
Sept. 14, 2019, 3 a.m. 33.4 ppb (31) 1.6 ppb (1) N/A 32.0 ppb (30) N/A N/A 24.0 ppb (18) 0.45 ppb (5) N/A N/A 31.0
 
Sept. 14, 2019, 2 a.m. 23.6 ppb (22) 0.5 ppb (0) N/A 23.0 ppb (21) N/A N/A 40.0 ppb (31) 0.41 ppb (5) N/A N/A 31.0
 
Sept. 14, 2019, 1 a.m. 15.6 ppb (14) 0.5 ppb (0) N/A 15.0 ppb (14) N/A N/A 60.0 ppb (46) 0.33 ppb (4) N/A N/A 46.0
 
Sept. 14, 2019, midnight 12.8 ppb (12) 0.9 ppb (1) N/A 12.0 ppb (11) N/A N/A 68.0 ppb (52) 0.29 ppb (3) N/A N/A 52.0
 
Sept. 13, 2019, 11 p.m. 16.1 ppb (15) 1.3 ppb (1) N/A 15.0 ppb (14) N/A N/A 80.0 ppb (62) 0.33 ppb (4) N/A N/A 62.0
 
Sept. 13, 2019, 10 p.m. 9.6 ppb (9) 0.9 ppb (1) N/A 9.0 ppb (8) N/A N/A 81.0 ppb (63) 0.26 ppb (3) N/A N/A 63.0
 
Sept. 13, 2019, 9 p.m. 13.1 ppb (12) 1.1 ppb (1) N/A 12.0 ppb (11) N/A N/A 92.0 ppb (72) 0.34 ppb (4) N/A N/A 72.0
 
Sept. 13, 2019, 8 p.m. 20.2 ppb (19) 2.0 ppb (2) N/A 18.0 ppb (17) N/A N/A 84.0 ppb (66) 0.41 ppb (5) N/A N/A 66.0
 
Sept. 13, 2019, 7 p.m. 13.3 ppb (12) 1.6 ppb (1) N/A 12.0 ppb (11) N/A N/A 75.0 ppb (58) 0.3 ppb (3) N/A N/A 58.0
 
Sept. 13, 2019, 6 p.m. 31.5 ppb (29) 5.6 ppb (5) N/A 26.0 ppb (24) N/A N/A 54.0 ppb (42) 0.4 ppb (4) N/A N/A 42.0
 
Sept. 13, 2019, 5 p.m. 50.2 ppb (46) 13.5 ppb (12) N/A 37.0 ppb (34) N/A N/A 33.0 ppb (25) 0.5 ppb (6) N/A N/A 46.0
 
Sept. 13, 2019, 4 p.m. 83.8 ppb (82) 36.0 ppb (33) N/A 48.0 ppb (44) N/A N/A 16.0 ppb (12) 0.82 ppb (9) N/A N/A 82.0
 
Sept. 13, 2019, 3 p.m. 109.4 ppb (102) 65.6 ppb (62) N/A 44.0 ppb (41) N/A N/A 7.0 ppb (5) 1.34 ppb (15) N/A N/A 102.0
 
Sept. 13, 2019, 2 p.m. 71.9 ppb (69) 41.2 ppb (38) N/A 31.0 ppb (29) N/A N/A 4.0 ppb (3) 0.83 ppb (9) N/A N/A 69.0
 
Sept. 13, 2019, 1 p.m. 108.5 ppb (101) 75.1 ppb (72) N/A 33.0 ppb (31) N/A N/A 1.0 ppb (1) 0.91 ppb (10) N/A N/A 101.0
 
Sept. 13, 2019, noon 99.1 ppb (98) 64.5 ppb (61) N/A 35.0 ppb (32) N/A N/A 1.0 ppb (1) 0.64 ppb (7) N/A N/A 98.0
 
Sept. 13, 2019, 11 a.m. 47.1 ppb (44) 19.9 ppb (18) N/A 27.0 ppb (25) N/A N/A 1.0 ppb (1) 0.53 ppb (6) N/A N/A 44.0
 
Sept. 13, 2019, 10 a.m. 30.6 ppb (28) 6.7 ppb (6) N/A 24.0 ppb (22) N/A N/A 3.0 ppb (2) 0.46 ppb (5) N/A N/A 28.0
 
Sept. 13, 2019, 9 a.m. 34.9 ppb (32) 10.7 ppb (10) N/A 24.0 ppb (22) N/A N/A 1.0 ppb (1) 0.47 ppb (5) N/A N/A 32.0
 
Sept. 13, 2019, 8 a.m. 51.1 ppb (47) 21.1 ppb (20) N/A 30.0 ppb (28) N/A N/A 1.0 ppb (1) 0.51 ppb (6) N/A N/A 47.0
 
Sept. 13, 2019, 7 a.m. 42.5 ppb (39) 11.8 ppb (11) N/A 31.0 ppb (29) N/A N/A 1.0 ppb (1) 0.51 ppb (6) N/A N/A 39.0
 
Sept. 13, 2019, 6 a.m. 38.6 ppb (36) 11.0 ppb (10) N/A 28.0 ppb (26) N/A N/A 4.0 ppb (3) 0.43 ppb (5) N/A N/A 36.0
 
Sept. 13, 2019, 5 a.m. 29.1 ppb (27) 2.4 ppb (2) N/A 27.0 ppb (25) N/A N/A 7.0 ppb (5) 0.43 ppb (5) N/A N/A 27.0
 
Sept. 13, 2019, 4 a.m. 26.2 ppb (24) 1.9 ppb (2) N/A 24.0 ppb (22) N/A N/A 11.0 ppb (8) 0.37 ppb (4) N/A N/A 24.0
 
Sept. 13, 2019, 3 a.m. 26.0 ppb (24) 1.6 ppb (1) N/A 24.0 ppb (22) N/A N/A 15.0 ppb (12) 0.36 ppb (4) N/A N/A 24.0
 
Sept. 13, 2019, 2 a.m. 21.5 ppb (20) 0.9 ppb (1) N/A 21.0 ppb (19) N/A N/A 24.0 ppb (18) 0.35 ppb (4) N/A N/A 20.0