AQSQID: 060132007

Site Name: San Ramon

Location: San Ramon (Pine Valley Rd), CA

Reporting: True, Located: True

Current AQI: 27.0

San Ramon (Pine Valley Rd) CA, US: 37.743649, -121.934188

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 26, 2019, 4 a.m. 1.8 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (27) N/A N/A N/A 27.0
 
May 26, 2019, 3 a.m. 0.9 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (28) N/A N/A N/A 28.0
 
May 26, 2019, 2 a.m. 1.2 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (29) N/A N/A N/A 29.0
 
May 26, 2019, 1 a.m. 1.5 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 39.0 ppb (30) N/A N/A N/A 30.0
 
May 26, 2019, midnight 1.9 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (31) N/A N/A N/A 31.0
 
May 25, 2019, 11 p.m. 1.9 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (32) N/A N/A N/A 32.0
 
May 25, 2019, 10 p.m. 1.8 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (34) N/A N/A N/A 34.0
 
May 25, 2019, 9 p.m. 1.6 ppb (1) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (35) N/A N/A N/A 35.0
 
May 25, 2019, 8 p.m. 2.3 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (35) N/A N/A N/A 35.0
 
May 25, 2019, 7 p.m. 1.3 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) N/A N/A N/A 35.0
 
May 25, 2019, 6 p.m. 1.3 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (33) N/A N/A N/A 33.0
 
May 25, 2019, 5 p.m. 1.3 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (32) N/A N/A N/A 32.0
 
May 25, 2019, 4 p.m. 1.4 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (32) N/A N/A N/A 32.0
 
May 25, 2019, 3 p.m. 1.2 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (32) N/A N/A N/A 32.0
 
May 25, 2019, 2 p.m. 1.2 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (31) N/A N/A N/A 31.0
 
May 25, 2019, 1 p.m. 0.8 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 39.0 ppb (30) N/A N/A N/A 30.0
 
May 25, 2019, noon 0.9 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 35.0 ppb (27) N/A N/A N/A 27.0
 
May 25, 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
May 25, 2019, 10 a.m. 1.1 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 28.0 ppb (22) N/A N/A N/A 22.0
 
May 25, 2019, 9 a.m. 1.3 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 29.0 ppb (22) N/A N/A N/A 22.0
 
May 25, 2019, 8 a.m. 1.6 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (23) N/A N/A N/A 23.0
 
May 25, 2019, 7 a.m. 1.8 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 28.0 ppb (22) N/A N/A N/A 22.0
 
May 25, 2019, 6 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 28.0 ppb (22) N/A N/A N/A 22.0
 
May 25, 2019, 5 a.m. 1.9 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 29.0 ppb (22) N/A N/A N/A 22.0
 
May 25, 2019, 4 a.m. 2.3 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 29.0 ppb (22) N/A N/A N/A 22.0
 
May 25, 2019, 3 a.m. 2.5 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 29.0 ppb (22) N/A N/A N/A 22.0
 
May 25, 2019, 2 a.m. 4.0 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (23) N/A N/A N/A 23.0
 
May 25, 2019, 1 a.m. 3.9 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (25) N/A N/A N/A 25.0
 
May 25, 2019, midnight 2.7 ppb (3) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (28) N/A N/A N/A 28.0
 
May 24, 2019, 11 p.m. 2.6 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (29) N/A N/A N/A 29.0
 
May 24, 2019, 10 p.m. 2.4 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (30) N/A N/A N/A 30.0
 
May 24, 2019, 9 p.m. 2.3 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (29) N/A N/A N/A 29.0
 
May 24, 2019, 8 p.m. 3.4 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (28) N/A N/A N/A 28.0
 
May 24, 2019, 7 p.m. 3.9 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 34.0 ppb (26) N/A N/A N/A 26.0
 
May 24, 2019, 6 p.m. 3.7 ppb (3) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 29.0 ppb (22) N/A N/A N/A 22.0
 
May 24, 2019, 5 p.m. 5.1 ppb (5) 1.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 24.0 ppb (18) N/A N/A N/A 18.0
 
May 24, 2019, 4 p.m. 4.4 ppb (4) 1.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 23.0 ppb (18) N/A N/A N/A 18.0
 
May 24, 2019, 3 p.m. 2.3 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 25.0 ppb (19) N/A N/A N/A 19.0
 
May 24, 2019, 2 p.m. 2.0 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 24.0 ppb (18) N/A N/A N/A 18.0
 
May 24, 2019, 1 p.m. 2.7 ppb (3) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 23.0 ppb (18) N/A N/A N/A 18.0
 
May 24, 2019, noon 2.2 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 23.0 ppb (18) N/A N/A N/A 18.0
 
May 24, 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
May 24, 2019, 10 a.m. 1.7 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 23.0 ppb (18) N/A N/A N/A 18.0
 
May 24, 2019, 9 a.m. 1.4 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 25.0 ppb (19) N/A N/A N/A 19.0
 
May 24, 2019, 8 a.m. 1.7 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 25.0 ppb (19) N/A N/A N/A 19.0
 
May 24, 2019, 7 a.m. 3.3 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 22.0 ppb (17) N/A N/A N/A 17.0
 
May 24, 2019, 6 a.m. 3.7 ppb (3) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 22.0 ppb (17) N/A N/A N/A 17.0
 
May 24, 2019, 5 a.m. 3.7 ppb (3) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 23.0 ppb (18) N/A N/A N/A 18.0
 
May 24, 2019, 4 a.m. 4.6 ppb (4) 0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 24.0 ppb (18) N/A N/A N/A 18.0
 
May 24, 2019, 3 a.m. 5.8 ppb (5) 0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A 25.0 ppb (19) N/A N/A N/A 19.0
 
May 24, 2019, 2 a.m. 3.2 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 31.0 ppb (24) N/A N/A N/A 24.0
 
May 24, 2019, 1 a.m. 3.9 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 31.0 ppb (24) N/A N/A N/A 24.0
 
May 24, 2019, midnight 3.8 ppb (4) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (27) N/A N/A N/A 27.0
 
May 23, 2019, 11 p.m. 4.3 ppb (4) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (28) N/A N/A N/A 28.0
 
May 23, 2019, 10 p.m. 3.0 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 38.0 ppb (29) N/A N/A N/A 29.0
 
May 23, 2019, 9 p.m. 3.1 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (28) N/A N/A N/A 28.0
 
May 23, 2019, 8 p.m. 3.2 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (28) N/A N/A N/A 28.0
 
May 23, 2019, 7 p.m. 5.7 ppb (5) 1.8 ppb (2) N/A 4.0 ppb (4) N/A N/A 31.0 ppb (24) N/A N/A N/A 24.0
 
May 23, 2019, 6 p.m. 7.0 ppb (6) 2.0 ppb (2) N/A 5.0 ppb (5) N/A N/A 27.0 ppb (21) N/A N/A N/A 21.0
 
May 23, 2019, 5 p.m. 7.8 ppb (7) 2.5 ppb (2) N/A 5.0 ppb (5) N/A N/A 23.0 ppb (18) N/A N/A N/A 18.0
 
May 23, 2019, 4 p.m. 6.9 ppb (6) 2.2 ppb (2) N/A 5.0 ppb (5) N/A N/A 22.0 ppb (17) N/A N/A N/A 17.0
 
May 23, 2019, 3 p.m. 5.6 ppb (5) 1.7 ppb (2) N/A 4.0 ppb (4) N/A N/A 22.0 ppb (17) N/A N/A N/A 17.0
 
May 23, 2019, 2 p.m. 6.9 ppb (6) 1.3 ppb (1) N/A 6.0 ppb (6) N/A N/A 16.0 ppb (12) N/A N/A N/A 12.0
 
May 23, 2019, 1 p.m. 6.6 ppb (6) 2.3 ppb (2) N/A 4.0 ppb (4) N/A N/A 14.0 ppb (11) N/A N/A N/A 11.0
 
May 23, 2019, noon 3.1 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 14.0 ppb (11) N/A N/A N/A 11.0
 
May 23, 2019, 11 a.m. 2.4 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 17.0 ppb (13) N/A N/A N/A 13.0
 
May 23, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
May 23, 2019, 9 a.m. 3.0 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 18.0 ppb (14) N/A N/A N/A 14.0
 
May 23, 2019, 8 a.m. 3.2 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 19.0 ppb (15) N/A N/A N/A 15.0
 
May 23, 2019, 7 a.m. 4.1 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 19.0 ppb (15) N/A N/A N/A 15.0
 
May 23, 2019, 6 a.m. 4.4 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 20.0 ppb (15) N/A N/A N/A 15.0
 
May 23, 2019, 5 a.m. 5.4 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 21.0 ppb (16) N/A N/A N/A 16.0
 
May 23, 2019, 4 a.m. 5.5 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 23.0 ppb (18) N/A N/A N/A 18.0
 
May 23, 2019, 3 a.m. 5.0 ppb (5) 0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 27.0 ppb (21) N/A N/A N/A 21.0
 
May 23, 2019, 2 a.m. 4.2 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (23) N/A N/A N/A 23.0
 
May 23, 2019, 1 a.m. 2.7 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (25) N/A N/A N/A 25.0
 
May 23, 2019, midnight 3.6 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 31.0 ppb (24) N/A N/A N/A 24.0
 
May 22, 2019, 11 p.m. 3.4 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (25) N/A N/A N/A 25.0
 
May 22, 2019, 10 p.m. 3.1 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 33.0 ppb (25) N/A N/A N/A 25.0
 
May 22, 2019, 9 p.m. 2.7 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (28) N/A N/A N/A 28.0
 
May 22, 2019, 8 p.m. 2.9 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (28) N/A N/A N/A 28.0
 
May 22, 2019, 7 p.m. 3.8 ppb (4) 1.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (27) N/A N/A N/A 27.0
 
May 22, 2019, 6 p.m. 2.8 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (26) N/A N/A N/A 26.0
 
May 22, 2019, 5 p.m. 2.7 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (26) N/A N/A N/A 26.0
 
May 22, 2019, 4 p.m. 6.9 ppb (6) 2.7 ppb (3) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (23) N/A N/A N/A 23.0
 
May 22, 2019, 3 p.m. 4.5 ppb (4) 1.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 28.0 ppb (22) N/A N/A N/A 22.0
 
May 22, 2019, 2 p.m. 6.4 ppb (6) 1.5 ppb (1) N/A 5.0 ppb (5) N/A N/A 26.0 ppb (20) N/A N/A N/A 20.0
 
May 22, 2019, 1 p.m. 12.3 ppb (11) 6.9 ppb (6) N/A 5.0 ppb (5) N/A N/A 26.0 ppb (20) N/A N/A N/A 20.0
 
May 22, 2019, noon 1.7 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 31.0 ppb (24) N/A N/A N/A 24.0
 
May 22, 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
May 22, 2019, 10 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 35.0 ppb (27) N/A N/A N/A 27.0
 
May 22, 2019, 9 a.m. 1.2 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 34.0 ppb (26) N/A N/A N/A 26.0
 
May 22, 2019, 8 a.m. 0.9 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (28) N/A N/A N/A 28.0
 
May 22, 2019, 7 a.m. 0.9 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (29) N/A N/A N/A 29.0
 
May 22, 2019, 6 a.m. 0.6 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 39.0 ppb (30) N/A N/A N/A 30.0
 
May 22, 2019, 5 a.m. 0.6 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 39.0 ppb (30) N/A N/A N/A 30.0
 
May 22, 2019, 4 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (31) N/A N/A N/A 31.0
 
May 22, 2019, 3 a.m. 1.1 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (31) N/A N/A N/A 31.0
 
May 22, 2019, 2 a.m. 1.3 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 39.0 ppb (30) N/A N/A N/A 30.0
 
May 22, 2019, 1 a.m. 1.8 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (29) N/A N/A N/A 29.0
 
May 22, 2019, midnight 1.6 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (29) N/A N/A N/A 29.0
 
May 21, 2019, 11 p.m. 1.6 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 39.0 ppb (30) N/A N/A N/A 30.0
 
May 21, 2019, 10 p.m. 1.9 ppb (2) 0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A 39.0 ppb (30) N/A N/A N/A 30.0
 
May 21, 2019, 9 p.m. 1.6 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (32) N/A N/A N/A 32.0
 
May 21, 2019, 8 p.m. 1.4 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (31) N/A N/A N/A 31.0
 
May 21, 2019, 7 p.m. 1.8 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (31) N/A N/A N/A 31.0
 
May 21, 2019, 6 p.m. 1.6 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 39.0 ppb (30) N/A N/A N/A 30.0
 
May 21, 2019, 5 p.m. 2.0 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (29) N/A N/A N/A 29.0
 
May 21, 2019, 4 p.m. 2.7 ppb (3) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (28) N/A N/A N/A 28.0
 
May 21, 2019, 3 p.m. 2.3 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (28) N/A N/A N/A 28.0
 
May 21, 2019, 2 p.m. 3.0 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (28) N/A N/A N/A 28.0
 
May 21, 2019, 1 p.m. 5.7 ppb (5) 2.3 ppb (2) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (28) N/A N/A N/A 28.0
 
May 21, 2019, noon 2.9 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (27) N/A N/A N/A 27.0
 
May 21, 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
May 21, 2019, 10 a.m. 0.8 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (28) N/A N/A N/A 28.0
 
May 21, 2019, 9 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (28) N/A N/A N/A 28.0
 
May 21, 2019, 8 a.m. 0.7 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 36.0 ppb (28) N/A N/A N/A 28.0
 
May 19, 2019, 7 p.m. 1.4 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) N/A N/A N/A 35.0
 
May 19, 2019, 6 p.m. 1.8 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) N/A N/A N/A 35.0
 
May 19, 2019, 5 p.m. 2.0 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (33) N/A N/A N/A 33.0
 
May 19, 2019, 4 p.m. 2.8 ppb (3) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (32) N/A N/A N/A 32.0
 
May 19, 2019, 3 p.m. 3.6 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 39.0 ppb (30) N/A N/A N/A 30.0
 
May 19, 2019, 2 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (32) N/A N/A N/A 32.0
 
May 19, 2019, 1 p.m. 5.8 ppb (5) 0.2 ppb (0) N/A 6.0 ppb (6) N/A N/A 22.0 ppb (17) N/A N/A N/A 17.0
 
May 19, 2019, noon 4.0 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 22.0 ppb (17) N/A N/A N/A 17.0
 
May 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
May 19, 2019, 10 a.m. 1.5 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (27) N/A N/A N/A 27.0
 
May 19, 2019, 9 a.m. 1.1 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 35.0 ppb (27) N/A N/A N/A 27.0
 
May 19, 2019, 8 a.m. 0.9 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (28) N/A N/A N/A 28.0
 
May 19, 2019, 7 a.m. 1.5 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (30) N/A N/A N/A 30.0
 
May 19, 2019, 6 a.m. 2.3 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (27) N/A N/A N/A 27.0
 
May 19, 2019, 5 a.m. 3.4 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 29.0 ppb (22) N/A N/A N/A 22.0
 
May 19, 2019, 4 a.m. 1.6 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (28) N/A N/A N/A 28.0
 
May 19, 2019, 3 a.m. 2.4 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (27) N/A N/A N/A 27.0
 
May 19, 2019, 2 a.m. 2.3 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (26) N/A N/A N/A 26.0
 
May 19, 2019, 1 a.m. 2.8 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 31.0 ppb (24) N/A N/A N/A 24.0
 
May 19, 2019, midnight 2.2 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (27) N/A N/A N/A 27.0
 
May 18, 2019, 11 p.m. 2.1 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (28) N/A N/A N/A 28.0
 
May 18, 2019, 10 p.m. 1.8 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (30) N/A N/A N/A 30.0
 
May 18, 2019, 9 p.m. 2.3 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (28) N/A N/A N/A 28.0
 
May 18, 2019, 8 p.m. 2.9 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (25) N/A N/A N/A 25.0
 
May 18, 2019, 7 p.m. 3.6 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 30.0 ppb (23) N/A N/A N/A 23.0
 
May 18, 2019, 6 p.m. 5.0 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (23) N/A N/A N/A 23.0
 
May 18, 2019, 5 p.m. 5.5 ppb (5) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 27.0 ppb (21) N/A N/A N/A 21.0
 
May 18, 2019, 4 p.m. 7.1 ppb (7) 1.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 23.0 ppb (18) N/A N/A N/A 18.0
 
May 18, 2019, 3 p.m. 7.2 ppb (7) 1.8 ppb (2) N/A 5.0 ppb (5) N/A N/A 20.0 ppb (15) N/A N/A N/A 15.0
 
May 18, 2019, 2 p.m. 6.1 ppb (6) 1.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 16.0 ppb (12) N/A N/A N/A 12.0
 
May 18, 2019, 1 p.m. 16.4 ppb (15) 10.6 ppb (10) N/A 6.0 ppb (6) N/A N/A 11.0 ppb (8) N/A N/A N/A 15.0
 
May 18, 2019, noon 5.2 ppb (5) 0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 10.0 ppb (8) N/A N/A N/A 8.0
 
May 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
May 18, 2019, 10 a.m. 5.9 ppb (5) 0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 11.0 ppb (8) N/A N/A N/A 8.0
 
May 18, 2019, 9 a.m. 6.3 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 11.0 ppb (8) N/A N/A N/A 8.0
 
May 18, 2019, 8 a.m. 4.7 ppb (4) 0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A 15.0 ppb (12) N/A N/A N/A 12.0
 
May 18, 2019, 7 a.m. 4.8 ppb (4) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 16.0 ppb (12) N/A N/A N/A 12.0
 
May 18, 2019, 6 a.m. 4.5 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 20.0 ppb (15) N/A N/A N/A 15.0
 
May 18, 2019, 5 a.m. 4.2 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (20) N/A N/A N/A 20.0
 
May 18, 2019, 4 a.m. 2.3 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (26) N/A N/A N/A 26.0
 
May 18, 2019, 3 a.m. 2.9 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 34.0 ppb (26) N/A N/A N/A 26.0
 
May 18, 2019, 2 a.m. 1.9 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (28) N/A N/A N/A 28.0
 
May 18, 2019, 1 a.m. 1.8 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (29) N/A N/A N/A 29.0
 
May 18, 2019, midnight 1.8 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (32) N/A N/A N/A 32.0
 
May 17, 2019, 11 p.m. 2.1 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (32) N/A N/A N/A 32.0
 
May 17, 2019, 10 p.m. 1.9 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (33) N/A N/A N/A 33.0
 
May 17, 2019, 9 p.m. 1.6 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (34) N/A N/A N/A 34.0
 
May 17, 2019, 8 p.m. 1.8 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (33) N/A N/A N/A 33.0
 
May 17, 2019, 7 p.m. 2.0 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (32) N/A N/A N/A 32.0
 
May 17, 2019, 6 p.m. 2.2 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (31) N/A N/A N/A 31.0
 
May 17, 2019, 5 p.m. 3.1 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 38.0 ppb (29) N/A N/A N/A 29.0