AQSQID: 060550004

Site Name: Napa - Napa Valley College

Location: Napa (Roy Patrick Dr), CA

Reporting: True, Located: True

Current AQI: 12.0

Napa (Roy Patrick Dr) CA, US: 38.278849, -122.275024

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 19, 2019, 11 a.m. 9.9 ppb (9) 4.5 ppb (4) N/A 5.0 ppb (5) N/A N/A 8.0 ppb (6) 0.27 ppb (3) N/A 3.0 μg/m3 (12) 12.0
 
Sept. 19, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 19, 2019, 9 a.m. 3.4 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 12.0 ppb (9) 0.23 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 19, 2019, 8 a.m. 4.4 ppb (4) 1.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 11.0 ppb (8) 0.24 ppb (3) N/A 15.0 μg/m3 (56) 56.0
 
Sept. 19, 2019, 7 a.m. 7.8 ppb (7) 1.3 ppb (1) N/A 7.0 ppb (6) N/A N/A 9.0 ppb (7) 0.27 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 19, 2019, 6 a.m. 9.2 ppb (9) 1.6 ppb (1) N/A 8.0 ppb (7) N/A N/A 9.0 ppb (7) 0.33 ppb (4) N/A 3.0 μg/m3 (12) 12.0
 
Sept. 19, 2019, 5 a.m. 6.5 ppb (6) 0.9 ppb (1) N/A 6.0 ppb (6) N/A N/A 15.0 ppb (12) 0.28 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 19, 2019, 4 a.m. 7.8 ppb (7) 0.7 ppb (1) N/A 7.0 ppb (6) N/A N/A 18.0 ppb (14) 0.34 ppb (4) N/A 3.0 μg/m3 (12) 14.0
 
Sept. 19, 2019, 3 a.m. 2.7 ppb (3) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 26.0 ppb (20) 0.24 ppb (3) N/A 1.0 μg/m3 (4) 20.0
 
Sept. 19, 2019, 2 a.m. 0.9 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 29.0 ppb (22) 0.22 ppb (2) N/A 1.0 μg/m3 (4) 22.0
 
Sept. 19, 2019, 1 a.m. 0.6 ppb (1) 0.2 ppb (0) N/A 0.0 ppb (0) N/A N/A 31.0 ppb (24) 0.2 ppb (2) N/A 2.0 μg/m3 (8) 24.0
 
Sept. 19, 2019, midnight 0.6 ppb (1) 0.2 ppb (0) N/A 0.0 ppb (0) N/A N/A 33.0 ppb (25) 0.19 ppb (2) N/A 3.0 μg/m3 (12) 25.0
 
Sept. 18, 2019, 11 p.m. 0.5 ppb (0) 0.2 ppb (0) N/A 0.0 ppb (0) N/A N/A 35.0 ppb (27) 0.18 ppb (2) N/A 5.0 μg/m3 (21) 27.0
 
Sept. 18, 2019, 10 p.m. 0.6 ppb (1) 0.2 ppb (0) N/A 0.0 ppb (0) N/A N/A 35.0 ppb (27) 0.18 ppb (2) N/A 5.0 μg/m3 (21) 27.0
 
Sept. 18, 2019, 9 p.m. 0.6 ppb (1) 0.3 ppb (0) N/A 0.0 ppb (0) N/A N/A 35.0 ppb (27) 0.18 ppb (2) N/A 4.0 μg/m3 (17) 27.0
 
Sept. 18, 2019, 8 p.m. 0.8 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 32.0 ppb (25) 0.19 ppb (2) N/A 2.0 μg/m3 (8) 25.0
 
Sept. 18, 2019, 7 p.m. 0.9 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 32.0 ppb (25) 0.2 ppb (2) N/A 1.0 μg/m3 (4) 25.0
 
Sept. 18, 2019, 6 p.m. 1.8 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A 26.0 ppb (20) 0.24 ppb (3) N/A 1.0 μg/m3 (4) 20.0
 
Sept. 18, 2019, 5 p.m. 1.8 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A 23.0 ppb (18) 0.24 ppb (3) N/A 4.0 μg/m3 (17) 18.0
 
Sept. 18, 2019, 4 p.m. 3.2 ppb (3) 1.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 19.0 ppb (15) 0.25 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 18, 2019, 3 p.m. 3.3 ppb (3) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 16.0 ppb (12) 0.26 ppb (3) N/A 1.0 μg/m3 (4) 12.0
 
Sept. 18, 2019, 2 p.m. 2.7 ppb (3) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 16.0 ppb (12) 0.26 ppb (3) N/A -2.0 μg/m3 (0) 12.0
 
Sept. 18, 2019, 1 p.m. 3.8 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 14.0 ppb (11) 0.26 ppb (3) N/A 2.0 μg/m3 (8) 11.0
 
Sept. 18, 2019, noon 2.2 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 18.0 ppb (14) 0.24 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 18, 2019, 11 a.m. 2.0 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 19.0 ppb (15) 0.26 ppb (3) N/A 3.0 μg/m3 (12) 15.0
 
Sept. 18, 2019, 10 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. 18, 2019, 9 a.m. 3.1 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 14.0 ppb (11) 0.24 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 18, 2019, 8 a.m. 2.7 ppb (3) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 16.0 ppb (12) 0.26 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 18, 2019, 7 a.m. 2.5 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 16.0 ppb (12) 0.24 ppb (3) N/A 3.0 μg/m3 (12) 12.0
 
Sept. 18, 2019, 6 a.m. 3.1 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 17.0 ppb (13) 0.26 ppb (3) N/A 3.0 μg/m3 (12) 13.0
 
Sept. 18, 2019, 5 a.m. 2.3 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 19.0 ppb (15) 0.24 ppb (3) N/A 3.0 μg/m3 (12) 15.0
 
Sept. 18, 2019, 4 a.m. 2.2 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 21.0 ppb (16) 0.26 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 18, 2019, 3 a.m. 3.8 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 21.0 ppb (16) 0.27 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 18, 2019, 2 a.m. 1.6 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 25.0 ppb (19) 0.25 ppb (3) N/A -1.0 μg/m3 (0) 19.0
 
Sept. 18, 2019, 1 a.m. 1.0 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 27.0 ppb (21) 0.22 ppb (2) N/A 2.0 μg/m3 (8) 21.0
 
Sept. 18, 2019, midnight 0.6 ppb (1) 0.3 ppb (0) N/A 0.0 ppb (0) N/A N/A 30.0 ppb (23) 0.2 ppb (2) N/A 2.0 μg/m3 (8) 23.0
 
Sept. 17, 2019, 11 p.m. 0.5 ppb (0) 0.2 ppb (0) N/A 0.0 ppb (0) N/A N/A 33.0 ppb (25) 0.17 ppb (2) N/A 1.0 μg/m3 (4) 25.0
 
Sept. 17, 2019, 10 p.m. 2.3 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (30) 0.21 ppb (2) N/A 1.0 μg/m3 (4) 30.0
 
Sept. 17, 2019, 9 p.m. 1.7 ppb (2) 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (32) 0.22 ppb (2) N/A 0.0 μg/m3 (0) 32.0
 
Sept. 17, 2019, 8 p.m. 1.7 ppb (2) 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (31) 0.22 ppb (2) N/A 1.0 μg/m3 (4) 31.0
 
Sept. 17, 2019, 7 p.m. 2.6 ppb (2) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (27) 0.25 ppb (3) N/A 2.0 μg/m3 (8) 27.0
 
Sept. 17, 2019, 6 p.m. 2.2 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 31.0 ppb (24) 0.24 ppb (3) N/A 3.0 μg/m3 (12) 24.0
 
Sept. 17, 2019, 5 p.m. 5.8 ppb (5) 1.9 ppb (2) N/A 4.0 ppb (4) N/A N/A 23.0 ppb (18) 0.27 ppb (3) N/A 4.0 μg/m3 (17) 18.0
 
Sept. 17, 2019, 4 p.m. 9.5 ppb (9) 3.8 ppb (4) N/A 6.0 ppb (6) N/A N/A 17.0 ppb (13) 0.27 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 17, 2019, 3 p.m. 15.3 ppb (14) 7.9 ppb (7) N/A 7.0 ppb (6) N/A N/A 8.0 ppb (6) 0.34 ppb (4) N/A 3.0 μg/m3 (12) 14.0
 
Sept. 17, 2019, 2 p.m. 31.8 ppb (29) 20.6 ppb (19) N/A 11.0 ppb (10) N/A N/A 2.0 ppb (2) 0.56 ppb (6) N/A 2.0 μg/m3 (8) 29.0
 
Sept. 17, 2019, 1 p.m. 24.8 ppb (23) 13.8 ppb (13) N/A 11.0 ppb (10) N/A N/A 2.0 ppb (2) 0.42 ppb (5) N/A 0.0 μg/m3 (0) 23.0
 
Sept. 17, 2019, noon 10.9 ppb (10) 4.8 ppb (4) N/A 6.0 ppb (6) N/A N/A 5.0 ppb (4) 0.34 ppb (4) N/A 3.0 μg/m3 (12) 12.0
 
Sept. 17, 2019, 11 a.m. 9.6 ppb (9) 3.5 ppb (3) N/A 6.0 ppb (6) N/A N/A 6.0 ppb (5) 0.25 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 17, 2019, 10 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. 17, 2019, 9 a.m. 5.5 ppb (5) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 7.0 ppb (5) 0.22 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
Sept. 17, 2019, 8 a.m. 5.9 ppb (5) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 7.0 ppb (5) 0.24 ppb (3) N/A 15.0 μg/m3 (56) 56.0
 
Sept. 17, 2019, 7 a.m. 10.2 ppb (9) 1.3 ppb (1) N/A 9.0 ppb (8) N/A N/A 5.0 ppb (4) 0.29 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 17, 2019, 6 a.m. 11.0 ppb (10) 2.0 ppb (2) N/A 9.0 ppb (8) N/A N/A 7.0 ppb (5) 0.32 ppb (4) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 17, 2019, 5 a.m. 7.9 ppb (7) 1.1 ppb (1) N/A 7.0 ppb (6) N/A N/A 13.0 ppb (10) 0.31 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 17, 2019, 4 a.m. 5.9 ppb (5) 1.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 18.0 ppb (14) 0.29 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 17, 2019, 3 a.m. 3.2 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 22.0 ppb (17) 0.24 ppb (3) N/A 3.0 μg/m3 (12) 17.0
 
Sept. 17, 2019, 2 a.m. 2.1 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A N/A 26.0 ppb (20) 0.24 ppb (3) N/A 4.0 μg/m3 (17) 20.0
 
Sept. 17, 2019, 1 a.m. 0.8 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 28.0 ppb (22) 0.21 ppb (2) N/A 5.0 μg/m3 (21) 22.0
 
Sept. 17, 2019, midnight 0.7 ppb (1) 0.3 ppb (0) N/A 0.0 ppb (0) N/A N/A 28.0 ppb (22) 0.2 ppb (2) N/A 4.0 μg/m3 (17) 22.0
 
Sept. 16, 2019, 11 p.m. 0.7 ppb (1) 0.3 ppb (0) N/A 0.0 ppb (0) N/A N/A 30.0 ppb (23) 0.2 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 16, 2019, 10 p.m. 0.8 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 32.0 ppb (25) 0.21 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 16, 2019, 9 p.m. 1.0 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 32.0 ppb (25) 0.22 ppb (2) N/A 3.0 μg/m3 (12) 25.0
 
Sept. 16, 2019, 8 p.m. 1.1 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 32.0 ppb (25) 0.23 ppb (3) N/A 3.0 μg/m3 (12) 25.0
 
Sept. 16, 2019, 7 p.m. 1.2 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 31.0 ppb (24) 0.23 ppb (3) N/A 2.0 μg/m3 (8) 24.0
 
Sept. 16, 2019, 6 p.m. 1.7 ppb (2) 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 30.0 ppb (23) 0.23 ppb (3) N/A -4.0 μg/m3 (0) 23.0
 
Sept. 16, 2019, 5 p.m. 2.2 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 29.0 ppb (22) 0.25 ppb (3) N/A N/A 22.0
 
Sept. 16, 2019, 4 p.m. 2.1 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 26.0 ppb (20) 0.26 ppb (3) N/A 2.0 μg/m3 (8) 20.0
 
Sept. 16, 2019, 3 p.m. 3.0 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 25.0 ppb (19) 0.26 ppb (3) N/A 0.0 μg/m3 (0) 19.0
 
Sept. 16, 2019, 2 p.m. 2.5 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 26.0 ppb (20) 0.26 ppb (3) N/A -2.0 μg/m3 (0) 20.0
 
Sept. 16, 2019, 1 p.m. 1.6 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 26.0 ppb (20) 0.24 ppb (3) N/A -1.0 μg/m3 (0) 20.0
 
Sept. 16, 2019, noon 1.5 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 18.0 ppb (14) 0.25 ppb (3) N/A -1.0 μg/m3 (0) 14.0
 
Sept. 16, 2019, 11 a.m. 0.8 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 20.0 ppb (15) 0.25 ppb (3) N/A -1.0 μg/m3 (0) 15.0
 
Sept. 16, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.0 μg/m3 (0) N/A
Sept. 16, 2019, 9 a.m. 0.6 ppb (1) 0.2 ppb (0) N/A 0.0 ppb (0) N/A N/A 21.0 ppb (16) 0.24 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 16, 2019, 8 a.m. 0.8 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 20.0 ppb (15) 0.24 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 16, 2019, 7 a.m. 0.7 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 19.0 ppb (15) 0.24 ppb (3) N/A 3.0 μg/m3 (12) 15.0
 
Sept. 16, 2019, 6 a.m. 0.6 ppb (1) 0.2 ppb (0) N/A 0.0 ppb (0) N/A N/A 19.0 ppb (15) 0.24 ppb (3) N/A 2.0 μg/m3 (8) 15.0
 
Sept. 16, 2019, 5 a.m. 0.8 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 18.0 ppb (14) 0.24 ppb (3) N/A -1.0 μg/m3 (0) 14.0
 
Sept. 16, 2019, 4 a.m. 1.8 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A 19.0 ppb (15) 0.25 ppb (3) N/A 0.0 μg/m3 (0) 15.0
 
Sept. 16, 2019, 3 a.m. 1.0 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 20.0 ppb (15) 0.25 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 16, 2019, 2 a.m. 0.5 ppb (0) 0.2 ppb (0) N/A 0.0 ppb (0) N/A N/A 23.0 ppb (18) 0.24 ppb (3) N/A 4.0 μg/m3 (17) 18.0
 
Sept. 16, 2019, 1 a.m. 0.5 ppb (0) 0.2 ppb (0) N/A 0.0 ppb (0) N/A N/A 25.0 ppb (19) 0.22 ppb (2) N/A 3.0 μg/m3 (12) 19.0
 
Sept. 16, 2019, midnight 0.5 ppb (0) 0.2 ppb (0) N/A 0.0 ppb (0) N/A N/A 27.0 ppb (21) 0.2 ppb (2) N/A 2.0 μg/m3 (8) 21.0
 
Sept. 15, 2019, 11 p.m. 0.5 ppb (0) 0.2 ppb (0) N/A 0.0 ppb (0) N/A N/A 29.0 ppb (22) 0.2 ppb (2) N/A 0.0 μg/m3 (0) 22.0
 
Sept. 15, 2019, 10 p.m. 0.7 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 30.0 ppb (23) 0.2 ppb (2) N/A 3.0 μg/m3 (12) 23.0
 
Sept. 15, 2019, 9 p.m. 1.8 ppb (2) 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 33.0 ppb (25) 0.24 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 15, 2019, 8 p.m. 1.8 ppb (2) 0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A 31.0 ppb (24) 0.26 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 15, 2019, 7 p.m. 2.0 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 29.0 ppb (22) 0.27 ppb (3) N/A 4.0 μg/m3 (17) 22.0
 
Sept. 15, 2019, 6 p.m. 1.7 ppb (2) 0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A 24.0 ppb (18) 0.27 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 15, 2019, 5 p.m. 1.7 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A 22.0 ppb (17) 0.25 ppb (3) N/A 2.0 μg/m3 (8) 17.0
 
Sept. 15, 2019, 4 p.m. 2.4 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 21.0 ppb (16) 0.25 ppb (3) N/A -3.0 μg/m3 (0) 16.0
 
Sept. 15, 2019, 3 p.m. 5.4 ppb (5) 0.9 ppb (1) N/A 5.0 ppb (5) N/A N/A 15.0 ppb (12) 0.28 ppb (3) N/A 2.0 μg/m3 (8) 12.0
 
Sept. 15, 2019, 2 p.m. 4.4 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 12.0 ppb (9) 0.29 ppb (3) N/A 3.0 μg/m3 (12) 12.0
 
Sept. 15, 2019, 1 p.m. 5.3 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 12.0 ppb (9) 0.26 ppb (3) N/A 3.0 μg/m3 (12) 12.0
 
Sept. 15, 2019, noon 3.0 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 11.0 ppb (8) 0.23 ppb (3) N/A 2.0 μg/m3 (8) 8.0
 
Sept. 15, 2019, 11 a.m. 4.1 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 13.0 ppb (10) 0.25 ppb (3) N/A 1.0 μg/m3 (4) 10.0
 
Sept. 15, 2019, 10 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, 9 a.m. 2.5 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 17.0 ppb (13) 0.3 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 15, 2019, 8 a.m. 3.1 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 17.0 ppb (13) 0.24 ppb (3) N/A 14.0 μg/m3 (54) 54.0
 
Sept. 15, 2019, 7 a.m. 2.6 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 21.0 ppb (16) 0.25 ppb (3) N/A 3.0 μg/m3 (12) 16.0
 
Sept. 15, 2019, 6 a.m. 2.0 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 23.0 ppb (18) 0.24 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 15, 2019, 5 a.m. 1.7 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 23.0 ppb (18) 0.26 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 15, 2019, 4 a.m. 2.9 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 22.0 ppb (17) 0.25 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 15, 2019, 3 a.m. 3.8 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 23.0 ppb (18) 0.25 ppb (3) N/A 2.0 μg/m3 (8) 18.0
 
Sept. 15, 2019, 2 a.m. 3.6 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 25.0 ppb (19) 0.2 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 15, 2019, 1 a.m. 2.5 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (23) 0.17 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 15, 2019, midnight 2.6 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (28) 0.14 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 14, 2019, 11 p.m. 2.9 ppb (3) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (34) 0.14 ppb (2) N/A 5.0 μg/m3 (21) 34.0
 
Sept. 14, 2019, 10 p.m. 2.7 ppb (3) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (36) 0.15 ppb (2) N/A 7.0 μg/m3 (29) 36.0
 
Sept. 14, 2019, 9 p.m. 1.9 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 49.0 ppb (38) 0.15 ppb (2) N/A 5.0 μg/m3 (21) 38.0
 
Sept. 14, 2019, 8 p.m. 3.2 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 53.0 ppb (41) 0.22 ppb (2) N/A 7.0 μg/m3 (29) 41.0
 
Sept. 14, 2019, 7 p.m. 3.5 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 49.0 ppb (38) 0.26 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 14, 2019, 6 p.m. 3.4 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 42.0 ppb (32) 0.27 ppb (3) N/A 7.0 μg/m3 (29) 32.0
 
Sept. 14, 2019, 5 p.m. 5.7 ppb (5) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 34.0 ppb (26) 0.32 ppb (4) N/A 5.0 μg/m3 (21) 26.0
 
Sept. 14, 2019, 4 p.m. 9.0 ppb (8) 2.3 ppb (2) N/A 7.0 ppb (6) N/A N/A 23.0 ppb (18) 0.35 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 14, 2019, 3 p.m. 10.9 ppb (10) 3.0 ppb (3) N/A 8.0 ppb (7) N/A N/A 16.0 ppb (12) 0.34 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 14, 2019, 2 p.m. 15.2 ppb (14) 5.2 ppb (5) N/A 10.0 ppb (9) N/A N/A 9.0 ppb (7) 0.43 ppb (5) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 14, 2019, 1 p.m. 14.8 ppb (14) 5.3 ppb (5) N/A 10.0 ppb (9) N/A N/A 9.0 ppb (7) 0.44 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 14, 2019, noon 8.5 ppb (8) 1.6 ppb (1) N/A 7.0 ppb (6) N/A N/A 11.0 ppb (8) 0.33 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 14, 2019, 11 a.m. 7.5 ppb (7) 1.4 ppb (1) N/A 6.0 ppb (6) N/A N/A 13.0 ppb (10) 0.29 ppb (3) N/A 3.0 μg/m3 (12) 12.0
 
Sept. 14, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 14, 2019, 9 a.m. 8.4 ppb (8) 1.1 ppb (1) N/A 7.0 ppb (6) N/A N/A 17.0 ppb (13) 0.28 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 14, 2019, 8 a.m. 11.2 ppb (10) 0.9 ppb (1) N/A 10.0 ppb (9) N/A N/A 14.0 ppb (11) 0.46 ppb (5) N/A 19.0 μg/m3 (65) 65.0
 
Sept. 14, 2019, 7 a.m. 9.6 ppb (9) 0.5 ppb (0) N/A 9.0 ppb (8) N/A N/A 18.0 ppb (14) 0.45 ppb (5) N/A 22.0 μg/m3 (71) 71.0
 
Sept. 14, 2019, 6 a.m. 12.4 ppb (11) 1.8 ppb (2) N/A 11.0 ppb (10) N/A N/A 20.0 ppb (15) 0.37 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 14, 2019, 5 a.m. 14.9 ppb (14) 1.5 ppb (1) N/A 13.0 ppb (12) N/A N/A 18.0 ppb (14) 0.44 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 14, 2019, 4 a.m. 9.9 ppb (9) 0.9 ppb (1) N/A 9.0 ppb (8) N/A N/A 25.0 ppb (19) 0.34 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 14, 2019, 3 a.m. 6.2 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 32.0 ppb (25) 0.21 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 14, 2019, 2 a.m. 3.9 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 38.0 ppb (29) 0.17 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 14, 2019, 1 a.m. 1.8 ppb (2) 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) 0.11 ppb (1) N/A 6.0 μg/m3 (25) 37.0
 
Sept. 14, 2019, midnight 2.4 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 71.0 ppb (55) 0.16 ppb (2) N/A 7.0 μg/m3 (29) 55.0
 
Sept. 13, 2019, 11 p.m. 2.3 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 78.0 ppb (61) 0.18 ppb (2) N/A 9.0 μg/m3 (38) 61.0
 
Sept. 13, 2019, 10 p.m. 2.6 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 82.0 ppb (64) 0.21 ppb (2) N/A 7.0 μg/m3 (29) 64.0
 
Sept. 13, 2019, 9 p.m. 2.7 ppb (3) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 75.0 ppb (58) 0.2 ppb (2) N/A 5.0 μg/m3 (21) 58.0
 
Sept. 13, 2019, 8 p.m. 2.2 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 67.0 ppb (52) 0.2 ppb (2) N/A 6.0 μg/m3 (25) 52.0
 
Sept. 13, 2019, 7 p.m. 1.7 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 56.0 ppb (43) 0.21 ppb (2) N/A 5.0 μg/m3 (21) 43.0
 
Sept. 13, 2019, 6 p.m. 2.2 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 49.0 ppb (38) 0.25 ppb (3) N/A 3.0 μg/m3 (12) 38.0
 
Sept. 13, 2019, 5 p.m. 3.7 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 42.0 ppb (32) 0.29 ppb (3) N/A 1.0 μg/m3 (4) 32.0
 
Sept. 13, 2019, 4 p.m. 11.6 ppb (11) 2.9 ppb (3) N/A 9.0 ppb (8) N/A N/A 26.0 ppb (20) 0.35 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 13, 2019, 3 p.m. 22.2 ppb (21) 8.9 ppb (8) N/A 13.0 ppb (12) N/A N/A 12.0 ppb (9) 0.46 ppb (5) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 13, 2019, 2 p.m. 32.3 ppb (30) 15.6 ppb (14) N/A 17.0 ppb (16) N/A N/A 6.0 ppb (5) 0.5 ppb (6) N/A 6.0 μg/m3 (25) 30.0
 
Sept. 13, 2019, 1 p.m. 24.2 ppb (22) 10.8 ppb (10) N/A 14.0 ppb (13) N/A N/A 6.0 ppb (5) 0.48 ppb (5) N/A 3.0 μg/m3 (12) 22.0
 
Sept. 13, 2019, noon 19.3 ppb (18) 8.4 ppb (8) N/A 11.0 ppb (10) N/A N/A 8.0 ppb (6) 0.43 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 13, 2019, 11 a.m. 12.7 ppb (12) 4.6 ppb (4) N/A 8.0 ppb (7) N/A N/A 9.0 ppb (7) 0.31 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Sept. 13, 2019, 10 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. 13, 2019, 9 a.m. 6.5 ppb (6) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 14.0 ppb (11) 0.27 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Sept. 13, 2019, 8 a.m. 6.4 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A 16.0 ppb (12) 0.33 ppb (4) N/A 19.0 μg/m3 (65) 65.0
 
Sept. 13, 2019, 7 a.m. 6.6 ppb (6) 1.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 22.0 ppb (17) 0.27 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 13, 2019, 6 a.m. 9.0 ppb (8) 1.2 ppb (1) N/A 8.0 ppb (7) N/A N/A 20.0 ppb (15) 0.36 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 13, 2019, 5 a.m. 14.6 ppb (14) 1.3 ppb (1) N/A 13.0 ppb (12) N/A N/A 12.0 ppb (9) 0.41 ppb (5) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 13, 2019, 4 a.m. 14.1 ppb (13) 1.4 ppb (1) N/A 13.0 ppb (12) N/A N/A 15.0 ppb (12) 0.42 ppb (5) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 13, 2019, 3 a.m. 17.4 ppb (16) 2.1 ppb (2) N/A 15.0 ppb (14) N/A N/A 14.0 ppb (11) 0.33 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 13, 2019, 2 a.m. 8.3 ppb (8) 1.2 ppb (1) N/A 7.0 ppb (6) N/A N/A 26.0 ppb (20) 0.2 ppb (2) N/A 3.0 μg/m3 (12) 20.0
 
Sept. 13, 2019, 1 a.m. 2.4 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 51.0 ppb (39) 0.12 ppb (1) N/A 8.0 μg/m3 (33) 39.0
 
Sept. 13, 2019, midnight 3.5 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 79.0 ppb (62) 0.18 ppb (2) N/A 10.0 μg/m3 (42) 62.0
 
Sept. 12, 2019, 11 p.m. 3.5 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 78.0 ppb (61) 0.2 ppb (2) N/A 7.0 μg/m3 (29) 61.0
 
Sept. 12, 2019, 10 p.m. 3.6 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 75.0 ppb (58) 0.21 ppb (2) N/A 8.0 μg/m3 (33) 58.0
 
Sept. 12, 2019, 9 p.m. 3.6 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 67.0 ppb (52) 0.21 ppb (2) N/A 6.0 μg/m3 (25) 52.0
 
Sept. 12, 2019, 8 p.m. 3.3 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 56.0 ppb (43) 0.23 ppb (3) N/A 6.0 μg/m3 (25) 43.0
 
Sept. 12, 2019, 7 p.m. 3.0 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 43.0 ppb (33) 0.25 ppb (3) N/A 4.0 μg/m3 (17) 33.0
 
Sept. 12, 2019, 6 p.m. 3.2 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (28) 0.25 ppb (3) N/A 3.0 μg/m3 (12) 28.0
 
Sept. 12, 2019, 5 p.m. 6.6 ppb (6) 1.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 29.0 ppb (22) 0.29 ppb (3) N/A 4.0 μg/m3 (17) 22.0
 
Sept. 12, 2019, 4 p.m. 11.2 ppb (10) 3.6 ppb (3) N/A 8.0 ppb (7) N/A N/A 19.0 ppb (15) 0.33 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 12, 2019, 3 p.m. 20.6 ppb (19) 9.3 ppb (9) N/A 11.0 ppb (10) N/A N/A 9.0 ppb (7) 0.39 ppb (4) N/A 8.0 μg/m3 (33) 33.0
 
Sept. 12, 2019, 2 p.m. 23.4 ppb (22) 11.7 ppb (11) N/A 12.0 ppb (11) N/A N/A 5.0 ppb (4) 0.47 ppb (5) N/A 4.0 μg/m3 (17) 22.0
 
Sept. 12, 2019, 1 p.m. 24.3 ppb (23) 11.8 ppb (11) N/A 13.0 ppb (12) N/A N/A 5.0 ppb (4) 0.42 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 12, 2019, noon 12.2 ppb (11) 4.2 ppb (4) N/A 8.0 ppb (7) N/A N/A 8.0 ppb (6) 0.32 ppb (4) N/A 7.0 μg/m3 (29) 29.0