AQSQID: 060370113

Site Name: West Los Angeles - Va Hospital

Location: West Los Angeles (Dowlen Dr), CA

Reporting: True, Located: True

Current AQI: 18.0

West Los Angeles (Dowlen Dr) CA, US: 34.0506, -118.4553

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 23, 2019, 8 a.m. 13.7 ppb (13) -0.1 ppb (0) N/A 14.0 ppb (13) N/A N/A 24.0 ppb (18) 0.31 ppb (3) N/A N/A 18.0
 
May 23, 2019, 7 a.m. 18.6 ppb (17) 0.8 ppb (1) N/A 18.0 ppb (17) N/A N/A 13.0 ppb (10) 0.38 ppb (4) N/A N/A 17.0
 
May 23, 2019, 6 a.m. 15.1 ppb (14) 0.0 ppb (0) N/A 15.0 ppb (14) N/A N/A 20.0 ppb (15) 0.33 ppb (4) N/A N/A 15.0
 
May 23, 2019, 5 a.m. 10.9 ppb (10) 0.0 ppb (0) N/A 11.0 ppb (10) N/A N/A 24.0 ppb (18) 0.28 ppb (3) N/A N/A 18.0
 
May 23, 2019, 4 a.m. 15.8 ppb (15) 0.0 ppb (0) N/A 16.0 ppb (15) N/A N/A 22.0 ppb (17) 0.28 ppb (3) N/A N/A 17.0
 
May 23, 2019, 3 a.m. 18.4 ppb (17) 0.2 ppb (0) N/A 18.0 ppb (17) N/A N/A 24.0 ppb (18) 0.3 ppb (3) N/A N/A 18.0
 
May 23, 2019, 2 a.m. 6.7 ppb (6) 0.1 ppb (0) N/A 7.0 ppb (6) N/A N/A 40.0 ppb (31) 0.22 ppb (2) N/A N/A 31.0
 
May 23, 2019, 1 a.m. 3.2 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 45.0 ppb (35) 0.18 ppb (2) N/A N/A 35.0
 
May 23, 2019, midnight 2.3 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (35) 0.16 ppb (2) N/A N/A 35.0
 
May 22, 2019, 11 p.m. 6.6 ppb (6) 1.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 44.0 ppb (34) 0.2 ppb (2) N/A N/A 34.0
 
May 22, 2019, 10 p.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, 9 p.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, 8 p.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, 7 p.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, 6 p.m. 2.0 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (34) 0.17 ppb (2) N/A N/A 34.0
 
May 22, 2019, 5 p.m. 2.4 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (32) 0.17 ppb (2) N/A N/A 32.0
 
May 22, 2019, 4 p.m. 3.1 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (30) 0.18 ppb (2) N/A N/A 30.0
 
May 22, 2019, 3 p.m. 4.7 ppb (4) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 35.0 ppb (27) 0.19 ppb (2) N/A N/A 27.0
 
May 22, 2019, 2 p.m. 8.3 ppb (8) 1.4 ppb (1) N/A 7.0 ppb (6) N/A N/A 30.0 ppb (23) 0.26 ppb (3) N/A N/A 23.0
 
May 22, 2019, 1 p.m. 16.2 ppb (15) 1.3 ppb (1) N/A 15.0 ppb (14) N/A N/A 19.0 ppb (15) 0.31 ppb (3) N/A N/A 15.0
 
May 22, 2019, noon 15.5 ppb (14) 0.2 ppb (0) N/A 15.0 ppb (14) N/A N/A 17.0 ppb (13) 0.29 ppb (3) N/A N/A 14.0
 
May 22, 2019, 11 a.m. 2.3 ppb (2) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 33.0 ppb (25) 0.15 ppb (2) N/A N/A 25.0
 
May 22, 2019, 10 a.m. 1.9 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (28) 0.15 ppb (2) N/A N/A 28.0
 
May 22, 2019, 9 a.m. 2.3 ppb (2) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (27) 0.16 ppb (2) N/A N/A 27.0
 
May 22, 2019, 8 a.m. 3.7 ppb (3) -0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 32.0 ppb (25) 0.2 ppb (2) N/A N/A 25.0
 
May 22, 2019, 7 a.m. 8.7 ppb (8) -0.3 ppb (0) N/A 9.0 ppb (8) N/A N/A 24.0 ppb (18) 0.27 ppb (3) N/A N/A 18.0
 
May 22, 2019, 6 a.m. 9.2 ppb (9) -0.3 ppb (0) N/A 10.0 ppb (9) N/A N/A 26.0 ppb (20) 0.25 ppb (3) N/A N/A 20.0
 
May 22, 2019, 5 a.m. 8.4 ppb (8) -0.3 ppb (0) N/A 9.0 ppb (8) N/A N/A 26.0 ppb (20) 0.27 ppb (3) N/A N/A 20.0
 
May 22, 2019, 4 a.m. 6.5 ppb (6) -0.3 ppb (0) N/A 7.0 ppb (6) N/A N/A 30.0 ppb (23) 0.24 ppb (3) N/A N/A 23.0
 
May 22, 2019, 3 a.m. 7.6 ppb (7) -0.3 ppb (0) N/A 8.0 ppb (7) N/A N/A 31.0 ppb (24) 0.27 ppb (3) N/A N/A 24.0
 
May 22, 2019, 2 a.m. 6.9 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A N/A 33.0 ppb (25) 0.23 ppb (3) N/A N/A 25.0
 
May 22, 2019, 1 a.m. 2.3 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (31) 0.18 ppb (2) N/A N/A 31.0
 
May 22, 2019, midnight 1.7 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (33) 0.18 ppb (2) N/A N/A 33.0
 
May 21, 2019, 11 p.m. 1.3 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) 0.18 ppb (2) N/A N/A 35.0
 
May 21, 2019, 10 p.m. 0.8 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) 0.16 ppb (2) N/A N/A 35.0
 
May 21, 2019, 9 p.m. 0.7 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) 0.15 ppb (2) N/A N/A 36.0
 
May 21, 2019, 8 p.m. 1.2 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) 0.14 ppb (2) N/A N/A 36.0
 
May 21, 2019, 7 p.m. 0.8 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) 0.13 ppb (1) N/A N/A 35.0
 
May 21, 2019, 6 p.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, 5 p.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, 4 p.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, 3 p.m. 3.5 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (31) 0.19 ppb (2) N/A N/A 31.0
 
May 21, 2019, 2 p.m. 5.4 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 37.0 ppb (28) 0.2 ppb (2) N/A N/A 28.0
 
May 21, 2019, 1 p.m. 4.6 ppb (4) -0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A 36.0 ppb (28) 0.19 ppb (2) N/A N/A 28.0
 
May 21, 2019, noon 4.1 ppb (4) -0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (28) 0.18 ppb (2) N/A N/A 28.0
 
May 21, 2019, 11 a.m. 2.7 ppb (3) -0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 39.0 ppb (30) 0.16 ppb (2) N/A N/A 30.0
 
May 21, 2019, 10 a.m. 1.7 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (32) 0.15 ppb (2) N/A N/A 32.0
 
May 21, 2019, 9 a.m. 0.7 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (32) 0.15 ppb (2) N/A N/A 32.0
 
May 21, 2019, 8 a.m. 1.0 ppb (1) -0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (32) 0.15 ppb (2) N/A N/A 32.0
 
May 21, 2019, 7 a.m. 1.5 ppb (1) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (32) 0.16 ppb (2) N/A N/A 32.0
 
May 21, 2019, 6 a.m. 3.3 ppb (3) -0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (28) 0.2 ppb (2) N/A N/A 28.0
 
May 21, 2019, 5 a.m. 5.0 ppb (5) -0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 36.0 ppb (28) 0.21 ppb (2) N/A N/A 28.0
 
May 21, 2019, 4 a.m. 6.0 ppb (6) -0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 35.0 ppb (27) 0.24 ppb (3) N/A N/A 27.0
 
May 21, 2019, 3 a.m. 4.5 ppb (4) -0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 37.0 ppb (28) 0.24 ppb (3) N/A N/A 28.0
 
May 21, 2019, 2 a.m. 2.1 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (33) 0.19 ppb (2) N/A N/A 33.0
 
May 21, 2019, 1 a.m. 1.6 ppb (1) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (36) 0.18 ppb (2) N/A N/A 36.0
 
May 21, 2019, midnight 1.2 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) 0.18 ppb (2) N/A N/A 36.0
 
May 20, 2019, 11 p.m. 1.0 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) 0.17 ppb (2) N/A N/A 37.0
 
May 20, 2019, 10 p.m. 1.4 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (38) 0.17 ppb (2) N/A N/A 38.0
 
May 20, 2019, 9 p.m. 1.5 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 51.0 ppb (39) 0.17 ppb (2) N/A N/A 39.0
 
May 20, 2019, 8 p.m. 1.6 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 50.0 ppb (38) 0.16 ppb (2) N/A N/A 38.0
 
May 20, 2019, 7 p.m. 1.7 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 49.0 ppb (38) 0.18 ppb (2) N/A N/A 38.0
 
May 20, 2019, 6 p.m. 2.2 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (36) 0.19 ppb (2) N/A N/A 36.0
 
May 20, 2019, 5 p.m. 2.3 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) 0.18 ppb (2) N/A N/A 35.0
 
May 20, 2019, 4 p.m. 2.6 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (33) 0.18 ppb (2) N/A N/A 33.0
 
May 20, 2019, 3 p.m. 5.4 ppb (5) 1.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 38.0 ppb (29) 0.22 ppb (2) N/A N/A 29.0
 
May 20, 2019, 2 p.m. 6.9 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 33.0 ppb (25) 0.23 ppb (3) N/A N/A 25.0
 
May 20, 2019, 1 p.m. 11.4 ppb (11) 1.2 ppb (1) N/A 10.0 ppb (9) N/A N/A 20.0 ppb (15) 0.29 ppb (3) N/A N/A 15.0
 
May 20, 2019, noon 3.5 ppb (3) -0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 33.0 ppb (25) 0.17 ppb (2) N/A N/A 25.0
 
May 20, 2019, 11 a.m. 1.1 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (32) 0.15 ppb (2) N/A N/A 32.0
 
May 20, 2019, 10 a.m. 2.8 ppb (3) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 38.0 ppb (29) 0.16 ppb (2) N/A N/A 29.0
 
May 20, 2019, 9 a.m. 1.7 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (29) 0.16 ppb (2) N/A N/A 29.0
 
May 20, 2019, 8 a.m. 0.3 ppb (0) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (33) 0.14 ppb (2) N/A N/A 33.0
 
May 20, 2019, 7 a.m. 1.1 ppb (1) -0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (31) 0.16 ppb (2) N/A N/A 31.0
 
May 20, 2019, 6 a.m. 1.3 ppb (1) -0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (30) 0.17 ppb (2) N/A N/A 30.0
 
May 20, 2019, 5 a.m. 1.0 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (34) 0.18 ppb (2) N/A N/A 34.0
 
May 20, 2019, 4 a.m. 0.5 ppb (0) -0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) 0.16 ppb (2) N/A N/A 37.0
 
May 20, 2019, 3 a.m. 0.5 ppb (0) -0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) 0.16 ppb (2) N/A N/A 35.0
 
May 20, 2019, 2 a.m. 0.7 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) 0.16 ppb (2) N/A N/A 35.0
 
May 20, 2019, 1 a.m. 0.4 ppb (0) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) 0.16 ppb (2) N/A N/A 37.0
 
May 20, 2019, midnight 0.5 ppb (0) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 52.0 ppb (40) 0.16 ppb (2) N/A N/A 40.0
 
May 19, 2019, 11 p.m. 0.3 ppb (0) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 52.0 ppb (40) 0.15 ppb (2) N/A N/A 40.0
 
May 19, 2019, 10 p.m. 0.6 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 52.0 ppb (40) 0.16 ppb (2) N/A N/A 40.0
 
May 19, 2019, 9 p.m. 1.0 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 52.0 ppb (40) 0.17 ppb (2) N/A N/A 40.0
 
May 19, 2019, 8 p.m. 3.2 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 48.0 ppb (37) 0.2 ppb (2) N/A N/A 37.0
 
May 19, 2019, 7 p.m. 4.6 ppb (4) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 43.0 ppb (33) 0.21 ppb (2) N/A N/A 33.0
 
May 19, 2019, 6 p.m. 5.5 ppb (5) 0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 39.0 ppb (30) 0.22 ppb (2) N/A N/A 30.0
 
May 19, 2019, 5 p.m. 6.1 ppb (6) 0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A 40.0 ppb (31) 0.22 ppb (2) N/A N/A 31.0
 
May 19, 2019, 4 p.m. 7.4 ppb (7) 0.1 ppb (0) N/A 7.0 ppb (6) N/A N/A 39.0 ppb (30) 0.23 ppb (3) N/A N/A 30.0
 
May 19, 2019, 3 p.m. 4.1 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 44.0 ppb (34) 0.21 ppb (2) N/A N/A 34.0
 
May 19, 2019, 2 p.m. 3.2 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (34) 0.18 ppb (2) N/A N/A 34.0
 
May 19, 2019, 1 p.m. 2.3 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (34) 0.17 ppb (2) N/A N/A 34.0
 
May 19, 2019, noon 1.8 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (34) 0.16 ppb (2) N/A N/A 34.0
 
May 19, 2019, 11 a.m. 2.1 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (33) 0.15 ppb (2) N/A N/A 33.0
 
May 19, 2019, 10 a.m. 1.0 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) 0.15 ppb (2) N/A N/A 35.0
 
May 19, 2019, 9 a.m. 0.9 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (31) 0.16 ppb (2) N/A N/A 31.0
 
May 19, 2019, 8 a.m. 0.7 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (32) 0.15 ppb (2) N/A N/A 32.0
 
May 19, 2019, 7 a.m. 1.8 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (30) 0.17 ppb (2) N/A N/A 30.0
 
May 19, 2019, 6 a.m. 1.3 ppb (1) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (32) 0.16 ppb (2) N/A N/A 32.0
 
May 19, 2019, 5 a.m. 3.1 ppb (3) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (27) 0.18 ppb (2) N/A N/A 27.0
 
May 19, 2019, 4 a.m. 2.7 ppb (3) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (28) 0.19 ppb (2) N/A N/A 28.0
 
May 19, 2019, 3 a.m. 3.4 ppb (3) -0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 42.0 ppb (32) 0.2 ppb (2) N/A N/A 32.0
 
May 19, 2019, 2 a.m. 2.2 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (35) 0.19 ppb (2) N/A N/A 35.0
 
May 19, 2019, 1 a.m. 1.7 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 50.0 ppb (38) 0.18 ppb (2) N/A N/A 38.0
 
May 19, 2019, midnight 1.9 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 55.0 ppb (42) 0.2 ppb (2) N/A N/A 42.0
 
May 18, 2019, 11 p.m. 1.4 ppb (1) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 50.0 ppb (38) 0.18 ppb (2) N/A N/A 38.0
 
May 18, 2019, 10 p.m. 1.2 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) 0.16 ppb (2) N/A N/A 37.0
 
May 18, 2019, 9 p.m. 1.3 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 50.0 ppb (38) 0.17 ppb (2) N/A N/A 38.0
 
May 18, 2019, 8 p.m. 2.0 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 51.0 ppb (39) 0.17 ppb (2) N/A N/A 39.0
 
May 18, 2019, 7 p.m. 3.8 ppb (4) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 49.0 ppb (38) 0.19 ppb (2) N/A N/A 38.0
 
May 18, 2019, 6 p.m. 3.1 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 48.0 ppb (37) 0.17 ppb (2) N/A N/A 37.0
 
May 18, 2019, 5 p.m. 4.8 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 44.0 ppb (34) 0.19 ppb (2) N/A N/A 34.0
 
May 18, 2019, 4 p.m. 7.2 ppb (7) 1.3 ppb (1) N/A 6.0 ppb (6) N/A N/A 37.0 ppb (28) 0.22 ppb (2) N/A N/A 28.0
 
May 18, 2019, 3 p.m. 6.5 ppb (6) 0.9 ppb (1) N/A 6.0 ppb (6) N/A N/A 35.0 ppb (27) 0.22 ppb (2) N/A N/A 27.0
 
May 18, 2019, 2 p.m. 7.9 ppb (7) 1.2 ppb (1) N/A 7.0 ppb (6) N/A N/A 31.0 ppb (24) 0.24 ppb (3) N/A N/A 24.0
 
May 18, 2019, 1 p.m. 25.6 ppb (24) 6.7 ppb (6) N/A 19.0 ppb (18) N/A N/A 4.0 ppb (3) 0.52 ppb (6) N/A N/A 24.0
 
May 18, 2019, noon 19.5 ppb (18) 1.6 ppb (1) N/A 18.0 ppb (17) N/A N/A 4.0 ppb (3) 0.43 ppb (5) N/A N/A 18.0
 
May 18, 2019, 11 a.m. 17.8 ppb (16) 0.3 ppb (0) N/A 18.0 ppb (17) N/A N/A 6.0 ppb (5) 0.37 ppb (4) N/A N/A 17.0
 
May 18, 2019, 10 a.m. 15.7 ppb (15) -0.1 ppb (0) N/A 16.0 ppb (15) N/A N/A 10.0 ppb (8) 0.35 ppb (4) N/A N/A 15.0
 
May 18, 2019, 9 a.m. 13.5 ppb (12) -0.2 ppb (0) N/A 14.0 ppb (13) N/A N/A 13.0 ppb (10) 0.4 ppb (4) N/A N/A 13.0
 
May 18, 2019, 8 a.m. 9.0 ppb (8) -0.3 ppb (0) N/A 9.0 ppb (8) N/A N/A 22.0 ppb (17) 0.3 ppb (3) N/A N/A 17.0
 
May 18, 2019, 7 a.m. 15.9 ppb (15) -0.2 ppb (0) N/A 16.0 ppb (15) N/A N/A 18.0 ppb (14) 0.35 ppb (4) N/A N/A 15.0
 
May 18, 2019, 6 a.m. 13.0 ppb (12) -0.2 ppb (0) N/A 13.0 ppb (12) N/A N/A 21.0 ppb (16) 0.38 ppb (4) N/A N/A 16.0
 
May 18, 2019, 5 a.m. 9.3 ppb (9) -0.3 ppb (0) N/A 10.0 ppb (9) N/A N/A 26.0 ppb (20) 0.32 ppb (4) N/A N/A 20.0
 
May 18, 2019, 4 a.m. 8.8 ppb (8) -0.2 ppb (0) N/A 9.0 ppb (8) N/A N/A 26.0 ppb (20) 0.29 ppb (3) N/A N/A 20.0
 
May 18, 2019, 3 a.m. 3.9 ppb (4) -0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (26) 0.23 ppb (3) N/A N/A 26.0
 
May 18, 2019, 2 a.m. 2.6 ppb (2) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 41.0 ppb (32) 0.21 ppb (2) N/A N/A 32.0
 
May 18, 2019, 1 a.m. 2.4 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) 0.19 ppb (2) N/A N/A 35.0
 
May 18, 2019, midnight 1.7 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (36) 0.17 ppb (2) N/A N/A 36.0
 
May 17, 2019, 11 p.m. 1.6 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 49.0 ppb (38) 0.16 ppb (2) N/A N/A 38.0
 
May 17, 2019, 10 p.m. 1.7 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 49.0 ppb (38) 0.15 ppb (2) N/A N/A 38.0
 
May 17, 2019, 9 p.m. 1.7 ppb (2) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) 0.14 ppb (2) N/A N/A 36.0
 
May 17, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
May 17, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
May 17, 2019, 6 p.m. 3.2 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 43.0 ppb (33) 0.18 ppb (2) N/A N/A 33.0
 
May 17, 2019, 5 p.m. 4.4 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 42.0 ppb (32) 0.2 ppb (2) N/A N/A 32.0
 
May 17, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
May 17, 2019, 3 p.m. 9.5 ppb (9) 2.2 ppb (2) N/A 7.0 ppb (6) N/A N/A 32.0 ppb (25) 0.25 ppb (3) N/A N/A 25.0
 
May 17, 2019, 2 p.m. 24.3 ppb (23) 13.7 ppb (13) N/A 11.0 ppb (10) N/A N/A 21.0 ppb (16) 0.35 ppb (4) N/A N/A 23.0
 
May 17, 2019, 1 p.m. 46.7 ppb (43) 25.1 ppb (23) N/A 22.0 ppb (20) N/A N/A 2.0 ppb (2) 0.76 ppb (8) N/A N/A 43.0
 
May 17, 2019, noon 24.6 ppb (23) 5.1 ppb (5) N/A 19.0 ppb (18) N/A N/A 1.0 ppb (1) 0.41 ppb (5) N/A N/A 23.0
 
May 17, 2019, 11 a.m. 11.5 ppb (11) 0.1 ppb (0) N/A 11.0 ppb (10) N/A N/A 9.0 ppb (7) 0.31 ppb (3) N/A N/A 11.0
 
May 17, 2019, 10 a.m. 10.3 ppb (10) 0.1 ppb (0) N/A 10.0 ppb (9) N/A N/A 11.0 ppb (8) 0.32 ppb (4) N/A N/A 10.0
 
May 17, 2019, 9 a.m. 11.8 ppb (11) 0.0 ppb (0) N/A 12.0 ppb (11) N/A N/A 10.0 ppb (8) 0.42 ppb (5) N/A N/A 11.0
 
May 17, 2019, 8 a.m. 14.4 ppb (13) 0.0 ppb (0) N/A 14.0 ppb (13) N/A N/A 9.0 ppb (7) 0.43 ppb (5) N/A N/A 13.0
 
May 17, 2019, 7 a.m. 11.6 ppb (11) -0.1 ppb (0) N/A 12.0 ppb (11) N/A N/A 16.0 ppb (12) 0.33 ppb (4) N/A N/A 12.0
 
May 17, 2019, 6 a.m. 11.2 ppb (10) -0.2 ppb (0) N/A 11.0 ppb (10) N/A N/A 21.0 ppb (16) 0.28 ppb (3) N/A N/A 16.0
 
May 17, 2019, 5 a.m. 5.6 ppb (5) -0.2 ppb (0) N/A 6.0 ppb (6) N/A N/A 29.0 ppb (22) 0.23 ppb (3) N/A N/A 22.0
 
May 17, 2019, 4 a.m. 2.7 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (28) 0.17 ppb (2) N/A N/A 28.0
 
May 17, 2019, 3 a.m. 1.4 ppb (1) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (32) 0.16 ppb (2) N/A N/A 32.0
 
May 17, 2019, 2 a.m. 1.8 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (33) 0.17 ppb (2) N/A N/A 33.0
 
May 17, 2019, 1 a.m. 1.3 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) 0.17 ppb (2) N/A N/A 36.0
 
May 17, 2019, midnight 1.0 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) 0.17 ppb (2) N/A N/A 36.0
 
May 16, 2019, 11 p.m. 0.7 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) 0.16 ppb (2) N/A N/A 37.0
 
May 16, 2019, 10 p.m. 0.9 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) 0.16 ppb (2) N/A N/A 35.0
 
May 16, 2019, 9 p.m. 0.9 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (34) 0.16 ppb (2) N/A N/A 34.0
 
May 16, 2019, 8 p.m. 1.8 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (34) 0.16 ppb (2) N/A N/A 34.0
 
May 16, 2019, 7 p.m. 1.2 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) 0.16 ppb (2) N/A N/A 35.0
 
May 16, 2019, 6 p.m. 1.7 ppb (2) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (32) 0.16 ppb (2) N/A N/A 32.0
 
May 16, 2019, 5 p.m. 6.2 ppb (6) 1.7 ppb (2) N/A 5.0 ppb (5) N/A N/A 28.0 ppb (22) 0.22 ppb (2) N/A N/A 22.0
 
May 16, 2019, 4 p.m. 10.5 ppb (10) 2.4 ppb (2) N/A 8.0 ppb (7) N/A N/A 21.0 ppb (16) 0.26 ppb (3) N/A N/A 16.0
 
May 16, 2019, 3 p.m. 10.0 ppb (9) 1.2 ppb (1) N/A 9.0 ppb (8) N/A N/A 20.0 ppb (15) 0.24 ppb (3) N/A N/A 15.0
 
May 16, 2019, 2 p.m. 7.0 ppb (6) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 21.0 ppb (16) 0.22 ppb (2) N/A N/A 16.0
 
May 16, 2019, 1 p.m. 6.5 ppb (6) 0.2 ppb (0) N/A 6.0 ppb (6) N/A N/A 19.0 ppb (15) 0.21 ppb (2) N/A N/A 15.0
 
May 16, 2019, noon 5.5 ppb (5) -0.2 ppb (0) N/A 6.0 ppb (6) N/A N/A 19.0 ppb (15) 0.17 ppb (2) N/A N/A 15.0
 
May 16, 2019, 11 a.m. 7.0 ppb (6) -0.3 ppb (0) N/A 7.0 ppb (6) N/A N/A 16.0 ppb (12) 0.19 ppb (2) N/A N/A 12.0
 
May 16, 2019, 10 a.m. 3.3 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 22.0 ppb (17) 0.16 ppb (2) N/A N/A 17.0
 
May 16, 2019, 9 a.m. 3.2 ppb (3) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 23.0 ppb (18) 0.15 ppb (2) N/A N/A 18.0