AQSQID: 060010007

Site Name: Livermore - Rincon

Location: Livermore, CA

Reporting: True, Located: True

Current AQI: 16.0

Livermore CA, US: 37.687526, -121.784217

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 21, 2019, 8 a.m. 17.5 ppb (16) 1.6 ppb (1) N/A 16.0 ppb (15) N/A N/A 7.0 ppb (5) N/A N/A 2.0 μg/m3 (8) 16.0
 
Sept. 21, 2019, 7 a.m. 23.2 ppb (21) 1.7 ppb (2) N/A 22.0 ppb (20) N/A N/A 4.0 ppb (3) N/A N/A 3.0 μg/m3 (12) 21.0
 
Sept. 21, 2019, 6 a.m. 20.9 ppb (19) 1.3 ppb (1) N/A 20.0 ppb (19) N/A N/A 6.0 ppb (5) N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 21, 2019, 5 a.m. 12.6 ppb (12) 0.7 ppb (1) N/A 12.0 ppb (11) N/A N/A 17.0 ppb (13) N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 21, 2019, 4 a.m. 10.8 ppb (10) 0.6 ppb (1) N/A 10.0 ppb (9) N/A N/A 21.0 ppb (16) N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 21, 2019, 3 a.m. 11.4 ppb (11) 0.6 ppb (1) N/A 11.0 ppb (10) N/A N/A 22.0 ppb (17) N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 21, 2019, 2 a.m. 9.6 ppb (9) 0.6 ppb (1) N/A 9.0 ppb (8) N/A N/A 29.0 ppb (22) N/A N/A 5.0 μg/m3 (21) 22.0
 
Sept. 21, 2019, 1 a.m. 7.0 ppb (6) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A 40.0 ppb (31) N/A N/A 7.0 μg/m3 (29) 31.0
 
Sept. 21, 2019, midnight 3.5 ppb (3) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 42.0 ppb (32) N/A N/A 4.0 μg/m3 (17) 32.0
 
Sept. 20, 2019, 11 p.m. 2.3 ppb (2) 1.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (31) N/A N/A 3.0 μg/m3 (12) 31.0
 
Sept. 20, 2019, 10 p.m. 2.3 ppb (2) 0.9 ppb (1) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (31) N/A N/A N/A 31.0
 
Sept. 20, 2019, 9 p.m. 2.0 ppb (2) 0.9 ppb (1) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (29) N/A N/A N/A 29.0
 
Sept. 20, 2019, 8 p.m. 2.5 ppb (2) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (28) N/A N/A N/A 28.0
 
Sept. 20, 2019, 7 p.m. 2.3 ppb (2) 0.9 ppb (1) N/A 1.0 ppb (1) N/A N/A 33.0 ppb (25) N/A N/A N/A 25.0
 
Sept. 20, 2019, 6 p.m. 2.5 ppb (2) 1.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 30.0 ppb (23) N/A N/A N/A 23.0
 
Sept. 20, 2019, 5 p.m. 6.6 ppb (6) 2.5 ppb (2) N/A 4.0 ppb (4) N/A N/A 25.0 ppb (19) N/A N/A N/A 19.0
 
Sept. 20, 2019, 4 p.m. 14.9 ppb (14) 6.7 ppb (6) N/A 8.0 ppb (7) N/A N/A 16.0 ppb (12) N/A N/A N/A 14.0
 
Sept. 20, 2019, 3 p.m. 48.5 ppb (45) 30.0 ppb (28) N/A 19.0 ppb (18) N/A N/A 4.0 ppb (3) N/A N/A N/A 45.0
 
Sept. 20, 2019, 2 p.m. 57.4 ppb (54) 39.3 ppb (36) N/A 18.0 ppb (17) N/A N/A 1.0 ppb (1) N/A N/A N/A 54.0
 
Sept. 20, 2019, 1 p.m. 46.7 ppb (43) 29.6 ppb (27) N/A 17.0 ppb (16) N/A N/A 0.0 ppb (0) N/A N/A N/A 43.0
 
Sept. 20, 2019, noon 24.7 ppb (23) 10.0 ppb (9) N/A 15.0 ppb (14) N/A N/A 0.0 ppb (0) N/A N/A N/A 23.0
 
Sept. 20, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Sept. 20, 2019, 10 a.m. 19.7 ppb (18) 3.6 ppb (3) N/A 16.0 ppb (15) N/A N/A 1.0 ppb (1) N/A N/A N/A 18.0
 
Sept. 20, 2019, 9 a.m. 17.2 ppb (16) 1.7 ppb (2) N/A 16.0 ppb (15) N/A N/A 2.0 ppb (2) N/A N/A N/A 16.0
 
Sept. 20, 2019, 8 a.m. 18.1 ppb (17) 1.2 ppb (1) N/A 17.0 ppb (16) N/A N/A 4.0 ppb (3) N/A N/A N/A 17.0
 
Sept. 20, 2019, 7 a.m. 19.2 ppb (18) 1.4 ppb (1) N/A 18.0 ppb (17) N/A N/A 4.0 ppb (3) N/A N/A N/A 18.0
 
Sept. 20, 2019, 6 a.m. 9.3 ppb (9) 0.6 ppb (1) N/A 9.0 ppb (8) N/A N/A 14.0 ppb (11) N/A N/A N/A 11.0
 
Sept. 20, 2019, 5 a.m. 8.7 ppb (8) 0.9 ppb (1) N/A 8.0 ppb (7) N/A N/A 20.0 ppb (15) N/A N/A N/A 15.0
 
Sept. 20, 2019, 4 a.m. 9.9 ppb (9) 0.6 ppb (1) N/A 9.0 ppb (8) N/A N/A 20.0 ppb (15) N/A N/A N/A 15.0
 
Sept. 20, 2019, 3 a.m. 11.2 ppb (10) 0.7 ppb (1) N/A 11.0 ppb (10) N/A N/A 22.0 ppb (17) N/A N/A N/A 17.0
 
Sept. 20, 2019, 2 a.m. 9.5 ppb (9) 0.6 ppb (1) N/A 9.0 ppb (8) N/A N/A 26.0 ppb (20) N/A N/A N/A 20.0
 
Sept. 20, 2019, 1 a.m. 5.3 ppb (5) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 36.0 ppb (28) N/A N/A N/A 28.0
 
Sept. 20, 2019, midnight 3.7 ppb (3) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 39.0 ppb (30) N/A N/A N/A 30.0
 
Sept. 19, 2019, 11 p.m. 2.3 ppb (2) 0.9 ppb (1) N/A 1.0 ppb (1) N/A N/A 39.0 ppb (30) N/A N/A N/A 30.0
 
Sept. 19, 2019, 10 p.m. 1.9 ppb (2) 0.9 ppb (1) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (29) N/A N/A N/A 29.0
 
Sept. 19, 2019, 9 p.m. 1.5 ppb (1) 0.7 ppb (1) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (28) N/A N/A N/A 28.0
 
Sept. 19, 2019, 8 p.m. 2.3 ppb (2) 0.9 ppb (1) N/A 1.0 ppb (1) N/A N/A 35.0 ppb (27) N/A N/A N/A 27.0
 
Sept. 19, 2019, 7 p.m. 4.5 ppb (4) 1.8 ppb (2) N/A 3.0 ppb (3) N/A N/A 30.0 ppb (23) N/A N/A N/A 23.0
 
Sept. 19, 2019, 6 p.m. 5.6 ppb (5) 2.2 ppb (2) N/A 3.0 ppb (3) N/A N/A 26.0 ppb (20) N/A N/A N/A 20.0
 
Sept. 19, 2019, 5 p.m. 6.8 ppb (6) 2.8 ppb (3) N/A 4.0 ppb (4) N/A N/A 22.0 ppb (17) N/A N/A N/A 17.0
 
Sept. 19, 2019, 4 p.m. 9.4 ppb (9) 4.1 ppb (4) N/A 5.0 ppb (5) N/A N/A 17.0 ppb (13) N/A N/A N/A 13.0
 
Sept. 19, 2019, 3 p.m. 28.6 ppb (26) 16.8 ppb (16) N/A 12.0 ppb (11) N/A N/A 6.0 ppb (5) N/A N/A N/A 26.0
 
Sept. 19, 2019, 2 p.m. 53.8 ppb (50) 38.8 ppb (36) N/A 15.0 ppb (14) N/A N/A 1.0 ppb (1) N/A N/A N/A 50.0
 
Sept. 19, 2019, 1 p.m. 49.9 ppb (46) 34.4 ppb (32) N/A 16.0 ppb (15) N/A N/A 0.0 ppb (0) N/A N/A N/A 46.0
 
Sept. 19, 2019, noon 32.4 ppb (30) 19.5 ppb (18) N/A 13.0 ppb (12) N/A N/A 0.0 ppb (0) N/A N/A N/A 30.0
 
Sept. 19, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Sept. 19, 2019, 10 a.m. 12.5 ppb (12) 1.3 ppb (1) N/A 11.0 ppb (10) N/A N/A 3.0 ppb (2) N/A N/A N/A 12.0
 
Sept. 19, 2019, 9 a.m. 14.7 ppb (14) 1.3 ppb (1) N/A 13.0 ppb (12) N/A N/A 3.0 ppb (2) N/A N/A N/A 14.0
 
Sept. 19, 2019, 8 a.m. 7.3 ppb (7) 0.8 ppb (1) N/A 7.0 ppb (6) N/A N/A 11.0 ppb (8) N/A N/A N/A 8.0
 
Sept. 19, 2019, 7 a.m. 4.6 ppb (4) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 18.0 ppb (14) N/A N/A N/A 14.0
 
Sept. 19, 2019, 6 a.m. 3.6 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 20.0 ppb (15) N/A N/A N/A 15.0
 
Sept. 19, 2019, 5 a.m. 5.5 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 21.0 ppb (16) N/A N/A N/A 16.0
 
Sept. 19, 2019, 4 a.m. 4.5 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 22.0 ppb (17) N/A N/A N/A 17.0
 
Sept. 19, 2019, 3 a.m. 4.0 ppb (4) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 26.0 ppb (20) N/A N/A N/A 20.0
 
Sept. 19, 2019, 2 a.m. 3.6 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 28.0 ppb (22) N/A N/A N/A 22.0
 
Sept. 19, 2019, 1 a.m. 2.8 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 28.0 ppb (22) N/A N/A N/A 22.0
 
Sept. 19, 2019, midnight 2.8 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A 29.0 ppb (22) N/A N/A N/A 22.0
 
Sept. 18, 2019, 11 p.m. 2.6 ppb (2) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 32.0 ppb (25) N/A N/A N/A 25.0
 
Sept. 18, 2019, 10 p.m. 3.2 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 32.0 ppb (25) N/A N/A N/A 25.0
 
Sept. 18, 2019, 9 p.m. 2.6 ppb (2) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A 32.0 ppb (25) N/A N/A N/A 25.0
 
Sept. 18, 2019, 8 p.m. 2.3 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 28.0 ppb (22) N/A N/A N/A 22.0
 
Sept. 18, 2019, 7 p.m. 3.8 ppb (4) 1.7 ppb (2) N/A 2.0 ppb (2) N/A N/A 24.0 ppb (18) N/A N/A N/A 18.0
 
Sept. 18, 2019, 6 p.m. 6.4 ppb (6) 2.4 ppb (2) N/A 4.0 ppb (4) N/A N/A 18.0 ppb (14) N/A N/A N/A 14.0
 
Sept. 18, 2019, 5 p.m. 8.0 ppb (7) 3.2 ppb (3) N/A 5.0 ppb (5) N/A N/A 17.0 ppb (13) N/A N/A N/A 13.0
 
Sept. 18, 2019, 4 p.m. 6.0 ppb (6) 2.2 ppb (2) N/A 4.0 ppb (4) N/A N/A 18.0 ppb (14) N/A N/A N/A 14.0
 
Sept. 18, 2019, 3 p.m. 8.5 ppb (8) 2.9 ppb (3) N/A 6.0 ppb (6) N/A N/A 15.0 ppb (12) N/A N/A N/A 12.0
 
Sept. 18, 2019, 2 p.m. 4.2 ppb (4) 1.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 18.0 ppb (14) N/A N/A N/A 14.0
 
Sept. 18, 2019, 1 p.m. 3.0 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 20.0 ppb (15) N/A N/A N/A 15.0
 
Sept. 18, 2019, noon 2.1 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A 21.0 ppb (16) N/A N/A N/A 16.0
 
Sept. 18, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Sept. 18, 2019, 10 a.m. 2.9 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 19.0 ppb (15) N/A N/A N/A 15.0
 
Sept. 18, 2019, 9 a.m. 2.4 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 20.0 ppb (15) N/A N/A N/A 15.0
 
Sept. 18, 2019, 8 a.m. 2.9 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 19.0 ppb (15) N/A N/A N/A 15.0
 
Sept. 18, 2019, 7 a.m. 2.5 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 20.0 ppb (15) N/A N/A N/A 15.0
 
Sept. 18, 2019, 6 a.m. 2.3 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 21.0 ppb (16) N/A N/A N/A 16.0
 
Sept. 18, 2019, 5 a.m. 2.6 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 21.0 ppb (16) N/A N/A N/A 16.0
 
Sept. 18, 2019, 4 a.m. 3.3 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 20.0 ppb (15) N/A N/A N/A 15.0
 
Sept. 18, 2019, 3 a.m. 4.0 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 23.0 ppb (18) N/A N/A N/A 18.0
 
Sept. 18, 2019, 2 a.m. 3.9 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 26.0 ppb (20) N/A N/A N/A 20.0
 
Sept. 18, 2019, 1 a.m. 4.0 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 28.0 ppb (22) N/A N/A N/A 22.0
 
Sept. 18, 2019, midnight 4.1 ppb (4) 1.2 ppb (1) N/A 3.0 ppb (3) N/A N/A 31.0 ppb (24) N/A N/A N/A 24.0
 
Sept. 17, 2019, 11 p.m. 3.8 ppb (4) 1.2 ppb (1) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (28) N/A N/A N/A 28.0
 
Sept. 17, 2019, 10 p.m. 5.1 ppb (5) 1.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 45.0 ppb (35) N/A N/A N/A 35.0
 
Sept. 17, 2019, 9 p.m. 5.2 ppb (5) 1.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 45.0 ppb (35) N/A N/A N/A 35.0
 
Sept. 17, 2019, 8 p.m. 5.0 ppb (5) 1.4 ppb (1) N/A 4.0 ppb (4) N/A N/A 40.0 ppb (31) N/A N/A N/A 31.0
 
Sept. 17, 2019, 7 p.m. 3.9 ppb (4) 1.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (28) N/A N/A N/A 28.0
 
Sept. 17, 2019, 6 p.m. 6.1 ppb (6) 2.2 ppb (2) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (22) N/A N/A N/A 22.0
 
Sept. 17, 2019, 5 p.m. 6.1 ppb (6) 2.7 ppb (3) N/A 4.0 ppb (4) N/A N/A 24.0 ppb (18) N/A N/A N/A 18.0
 
Sept. 17, 2019, 4 p.m. 12.7 ppb (12) 5.8 ppb (5) N/A 7.0 ppb (6) N/A N/A 16.0 ppb (12) N/A N/A N/A 12.0
 
Sept. 17, 2019, 3 p.m. 14.6 ppb (14) 6.8 ppb (6) N/A 8.0 ppb (7) N/A N/A 10.0 ppb (8) N/A N/A N/A 14.0
 
Sept. 17, 2019, 2 p.m. 34.3 ppb (32) 21.5 ppb (20) N/A 13.0 ppb (12) N/A N/A 2.0 ppb (2) N/A N/A 3.0 μg/m3 (12) 32.0
 
Sept. 17, 2019, 1 p.m. 28.7 ppb (27) 14.6 ppb (14) N/A 14.0 ppb (13) N/A N/A 0.0 ppb (0) N/A N/A 1.0 μg/m3 (4) 27.0
 
Sept. 17, 2019, noon 30.2 ppb (28) 16.1 ppb (15) N/A 14.0 ppb (13) N/A N/A -1.0 ppb (0) N/A N/A 0.0 μg/m3 (0) 28.0
 
Sept. 17, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
Sept. 17, 2019, 10 a.m. 6.7 ppb (6) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A 10.0 ppb (8) N/A N/A -1.0 μg/m3 (0) 8.0
 
Sept. 17, 2019, 9 a.m. 6.6 ppb (6) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A 11.0 ppb (8) N/A N/A -3.0 μg/m3 (0) 8.0
 
Sept. 17, 2019, 8 a.m. 6.1 ppb (6) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 13.0 ppb (10) N/A N/A -2.0 μg/m3 (0) 10.0
 
Sept. 17, 2019, 7 a.m. 6.7 ppb (6) 1.1 ppb (1) N/A 6.0 ppb (6) N/A N/A 15.0 ppb (12) N/A N/A 0.0 μg/m3 (0) 12.0
 
Sept. 17, 2019, 6 a.m. 5.6 ppb (5) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 17.0 ppb (13) N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 17, 2019, 5 a.m. 5.0 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 19.0 ppb (15) N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 17, 2019, 4 a.m. 5.4 ppb (5) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 19.0 ppb (15) N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 17, 2019, 3 a.m. 4.9 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 21.0 ppb (16) N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 17, 2019, 2 a.m. 3.2 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 25.0 ppb (19) N/A N/A 1.0 μg/m3 (4) 19.0
 
Sept. 17, 2019, 1 a.m. 2.1 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A N/A 29.0 ppb (22) N/A N/A 3.0 μg/m3 (12) 22.0
 
Sept. 17, 2019, midnight 1.9 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A N/A 31.0 ppb (24) N/A N/A 4.0 μg/m3 (17) 24.0
 
Sept. 16, 2019, 11 p.m. 1.8 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A N/A 32.0 ppb (25) N/A N/A 3.0 μg/m3 (12) 25.0
 
Sept. 16, 2019, 10 p.m. 1.9 ppb (2) 0.9 ppb (1) N/A 1.0 ppb (1) N/A N/A 33.0 ppb (25) N/A N/A N/A 25.0
 
Sept. 16, 2019, 9 p.m. 1.9 ppb (2) 0.9 ppb (1) N/A 1.0 ppb (1) N/A N/A 33.0 ppb (25) N/A N/A 4.0 μg/m3 (17) 25.0
 
Sept. 16, 2019, 8 p.m. 1.9 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A N/A 34.0 ppb (26) N/A N/A 3.0 μg/m3 (12) 26.0
 
Sept. 16, 2019, 7 p.m. 2.6 ppb (2) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (26) N/A N/A 0.0 μg/m3 (0) 26.0
 
Sept. 16, 2019, 6 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 32.0 ppb (25) N/A N/A 1.0 μg/m3 (4) 25.0
 
Sept. 16, 2019, 5 p.m. 4.7 ppb (4) 1.7 ppb (2) N/A 3.0 ppb (3) N/A N/A 28.0 ppb (22) N/A N/A 3.0 μg/m3 (12) 22.0
 
Sept. 16, 2019, 4 p.m. 4.4 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 28.0 ppb (22) N/A N/A 2.0 μg/m3 (8) 22.0
 
Sept. 16, 2019, 3 p.m. 4.3 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 27.0 ppb (21) N/A N/A 1.0 μg/m3 (4) 21.0
 
Sept. 16, 2019, 2 p.m. 4.7 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 15.0 ppb (12) N/A N/A 2.0 μg/m3 (8) 12.0
 
Sept. 16, 2019, 1 p.m. 3.9 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 15.0 ppb (12) N/A N/A 0.0 μg/m3 (0) 12.0
 
Sept. 16, 2019, noon 2.1 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 15.0 ppb (12) N/A N/A -1.0 μg/m3 (0) 12.0
 
Sept. 16, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (4) 4.0
 
Sept. 16, 2019, 10 a.m. 1.0 ppb (1) 0.6 ppb (1) N/A 0.0 ppb (0) N/A N/A 16.0 ppb (12) N/A N/A 3.0 μg/m3 (12) 12.0
 
Sept. 16, 2019, 9 a.m. 0.8 ppb (1) 0.6 ppb (1) N/A 0.0 ppb (0) N/A N/A 17.0 ppb (13) N/A N/A 3.0 μg/m3 (12) 13.0
 
Sept. 16, 2019, 8 a.m. 1.4 ppb (1) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A 17.0 ppb (13) N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 16, 2019, 7 a.m. 1.2 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A 19.0 ppb (15) N/A N/A 3.0 μg/m3 (12) 15.0
 
Sept. 16, 2019, 6 a.m. 0.9 ppb (1) 0.5 ppb (0) N/A 0.0 ppb (0) N/A N/A 19.0 ppb (15) N/A N/A 2.0 μg/m3 (8) 15.0
 
Sept. 16, 2019, 5 a.m. 0.7 ppb (1) 0.5 ppb (0) N/A 0.0 ppb (0) N/A N/A 21.0 ppb (16) N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 16, 2019, 4 a.m. 0.7 ppb (1) 0.5 ppb (0) N/A 0.0 ppb (0) N/A N/A 22.0 ppb (17) N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 16, 2019, 3 a.m. 0.9 ppb (1) 0.5 ppb (0) N/A 0.0 ppb (0) N/A N/A 25.0 ppb (19) N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 16, 2019, 2 a.m. 0.9 ppb (1) 0.5 ppb (0) N/A 0.0 ppb (0) N/A N/A 26.0 ppb (20) N/A N/A 3.0 μg/m3 (12) 20.0
 
Sept. 16, 2019, 1 a.m. 0.9 ppb (1) 0.6 ppb (1) N/A 0.0 ppb (0) N/A N/A 29.0 ppb (22) N/A N/A 5.0 μg/m3 (21) 22.0
 
Sept. 16, 2019, midnight 1.5 ppb (1) 0.8 ppb (1) N/A 1.0 ppb (1) N/A N/A 32.0 ppb (25) N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 15, 2019, 11 p.m. 1.0 ppb (1) 0.6 ppb (1) N/A 0.0 ppb (0) N/A N/A 35.0 ppb (27) N/A N/A 2.0 μg/m3 (8) 27.0
 
Sept. 15, 2019, 10 p.m. 0.9 ppb (1) 0.6 ppb (1) N/A 0.0 ppb (0) N/A N/A 39.0 ppb (30) N/A N/A 2.0 μg/m3 (8) 30.0
 
Sept. 15, 2019, 9 p.m. 1.0 ppb (1) 0.6 ppb (1) N/A 0.0 ppb (0) N/A N/A 40.0 ppb (31) N/A N/A 0.0 μg/m3 (0) 31.0
 
Sept. 15, 2019, 8 p.m. 1.2 ppb (1) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A 39.0 ppb (30) N/A N/A 1.0 μg/m3 (4) 30.0
 
Sept. 15, 2019, 7 p.m. 1.8 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A N/A 36.0 ppb (28) N/A N/A 6.0 μg/m3 (25) 28.0
 
Sept. 15, 2019, 6 p.m. 1.8 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A N/A 32.0 ppb (25) N/A N/A 5.0 μg/m3 (21) 25.0
 
Sept. 15, 2019, 5 p.m. 2.2 ppb (2) 0.9 ppb (1) N/A 1.0 ppb (1) N/A N/A 27.0 ppb (21) N/A N/A 4.0 μg/m3 (17) 21.0
 
Sept. 15, 2019, 4 p.m. 2.0 ppb (2) 0.9 ppb (1) N/A 1.0 ppb (1) N/A N/A 24.0 ppb (18) N/A N/A 3.0 μg/m3 (12) 18.0
 
Sept. 15, 2019, 3 p.m. 2.9 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 20.0 ppb (15) N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 15, 2019, 2 p.m. 3.4 ppb (3) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 17.0 ppb (13) N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 15, 2019, 1 p.m. 4.4 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 14.0 ppb (11) N/A N/A 2.0 μg/m3 (8) 11.0
 
Sept. 15, 2019, noon 3.4 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 18.0 ppb (14) N/A N/A 0.0 μg/m3 (0) 14.0
 
Sept. 15, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
Sept. 15, 2019, 10 a.m. 3.2 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 21.0 ppb (16) N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 15, 2019, 9 a.m. 2.4 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 22.0 ppb (17) N/A N/A 3.0 μg/m3 (12) 17.0
 
Sept. 15, 2019, 8 a.m. 2.8 ppb (3) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 22.0 ppb (17) N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 15, 2019, 7 a.m. 3.2 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 21.0 ppb (16) N/A N/A 7.0 μg/m3 (29) 29.0
 
Sept. 15, 2019, 6 a.m. 4.7 ppb (4) 0.5 ppb (0) 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
 
Sept. 15, 2019, 5 a.m. 7.0 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A 21.0 ppb (16) N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 15, 2019, 4 a.m. 6.9 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A 23.0 ppb (18) N/A N/A 4.0 μg/m3 (17) 18.0
 
Sept. 15, 2019, 3 a.m. 6.4 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A 27.0 ppb (21) N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 15, 2019, 2 a.m. 4.0 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (26) N/A N/A 4.0 μg/m3 (17) 26.0
 
Sept. 15, 2019, 1 a.m. 3.1 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (34) N/A N/A 2.0 μg/m3 (8) 34.0
 
Sept. 15, 2019, midnight 4.0 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 46.0 ppb (35) N/A N/A 4.0 μg/m3 (17) 35.0
 
Sept. 14, 2019, 11 p.m. 3.8 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 46.0 ppb (35) N/A N/A 5.0 μg/m3 (21) 35.0
 
Sept. 14, 2019, 10 p.m. 3.3 ppb (3) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 47.0 ppb (36) N/A N/A 5.0 μg/m3 (21) 36.0
 
Sept. 14, 2019, 9 p.m. 4.1 ppb (4) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 73.0 ppb (57) N/A N/A 5.0 μg/m3 (21) 57.0
 
Sept. 14, 2019, 8 p.m. 3.3 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 80.0 ppb (62) N/A N/A 9.0 μg/m3 (38) 62.0
 
Sept. 14, 2019, 7 p.m. 3.8 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 72.0 ppb (56) N/A N/A 9.0 μg/m3 (38) 56.0
 
Sept. 14, 2019, 6 p.m. 3.4 ppb (3) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 56.0 ppb (43) N/A N/A 4.0 μg/m3 (17) 43.0
 
Sept. 14, 2019, 5 p.m. 6.4 ppb (6) 1.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 52.0 ppb (40) N/A N/A 5.0 μg/m3 (21) 40.0
 
Sept. 14, 2019, 4 p.m. 11.2 ppb (10) 2.3 ppb (2) N/A 9.0 ppb (8) N/A N/A 38.0 ppb (29) N/A N/A 7.0 μg/m3 (29) 29.0
 
Sept. 14, 2019, 3 p.m. 32.9 ppb (30) 10.6 ppb (10) N/A 22.0 ppb (20) N/A N/A 16.0 ppb (12) N/A N/A 10.0 μg/m3 (42) 42.0
 
Sept. 14, 2019, 2 p.m. 44.6 ppb (41) 19.0 ppb (18) N/A 26.0 ppb (24) N/A N/A 4.0 ppb (3) N/A N/A 9.0 μg/m3 (38) 41.0
 
Sept. 14, 2019, 1 p.m. 37.7 ppb (35) 11.5 ppb (11) N/A 26.0 ppb (24) N/A N/A 1.0 ppb (1) N/A N/A 6.0 μg/m3 (25) 35.0
 
Sept. 14, 2019, noon 24.0 ppb (22) 1.8 ppb (2) N/A 22.0 ppb (20) N/A N/A 4.0 ppb (3) N/A N/A 4.0 μg/m3 (17) 22.0
 
Sept. 14, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 14, 2019, 10 a.m. 22.6 ppb (21) 0.9 ppb (1) N/A 22.0 ppb (20) N/A N/A 9.0 ppb (7) N/A N/A 11.0 μg/m3 (46) 46.0
 
Sept. 14, 2019, 9 a.m. 21.6 ppb (20) 0.7 ppb (1) N/A 21.0 ppb (19) N/A N/A 12.0 ppb (9) N/A N/A 12.0 μg/m3 (50) 50.0