AQSQID: 060371701

Site Name: Pomona

Location: Pomona, CA

Reporting: True, Located: True

Current AQI: 20.0

Pomona CA, US: 34.0667, -117.7506

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
April 13, 2019, 2 a.m. 10.4 ppb (10) 1.7 ppb (2) N/A 9.0 ppb (8) N/A N/A 32.0 ppb (25) 0.26 ppb (3) N/A N/A 25.0
 
April 13, 2019, 1 a.m. 6.9 ppb (6) 1.4 ppb (1) N/A 6.0 ppb (6) N/A N/A 36.0 ppb (28) 0.25 ppb (3) N/A N/A 28.0
 
April 13, 2019, midnight 6.7 ppb (6) 1.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 38.0 ppb (29) 0.23 ppb (3) N/A N/A 29.0
 
April 12, 2019, 11 p.m. 7.7 ppb (7) 1.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 42.0 ppb (32) 0.25 ppb (3) N/A N/A 32.0
 
April 12, 2019, 10 p.m. 10.0 ppb (9) 2.3 ppb (2) N/A 8.0 ppb (7) N/A N/A 40.0 ppb (31) 0.28 ppb (3) N/A N/A 31.0
 
April 12, 2019, 9 p.m. 6.7 ppb (6) 1.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 47.0 ppb (36) 0.24 ppb (3) N/A N/A 36.0
 
April 12, 2019, 8 p.m. 7.9 ppb (7) 2.5 ppb (2) N/A 5.0 ppb (5) N/A N/A 44.0 ppb (34) 0.26 ppb (3) N/A N/A 34.0
 
April 12, 2019, 7 p.m. 9.3 ppb (9) 2.8 ppb (3) N/A 7.0 ppb (6) N/A N/A 39.0 ppb (30) 0.25 ppb (3) N/A N/A 30.0
 
April 12, 2019, 6 p.m. 11.4 ppb (11) 3.6 ppb (3) N/A 8.0 ppb (7) N/A N/A 34.0 ppb (26) 0.25 ppb (3) N/A N/A 26.0
 
April 12, 2019, 5 p.m. 12.3 ppb (11) 4.1 ppb (4) N/A 8.0 ppb (7) N/A N/A 30.0 ppb (23) 0.25 ppb (3) N/A N/A 23.0
 
April 12, 2019, 4 p.m. 11.5 ppb (11) 3.9 ppb (4) N/A 8.0 ppb (7) N/A N/A 29.0 ppb (22) 0.26 ppb (3) N/A N/A 22.0
 
April 12, 2019, 3 p.m. 17.6 ppb (16) 5.6 ppb (5) N/A 12.0 ppb (11) N/A N/A 24.0 ppb (18) 0.31 ppb (3) N/A N/A 18.0
 
April 12, 2019, 2 p.m. 45.6 ppb (42) 21.5 ppb (20) N/A 24.0 ppb (22) N/A N/A 9.0 ppb (7) 0.51 ppb (6) N/A N/A 42.0
 
April 12, 2019, 1 p.m. 62.1 ppb (59) 35.2 ppb (33) N/A 27.0 ppb (25) N/A N/A 3.0 ppb (2) 0.78 ppb (9) N/A N/A 59.0
 
April 12, 2019, noon 29.8 ppb (28) 6.4 ppb (6) N/A 23.0 ppb (21) N/A N/A 5.0 ppb (4) 0.41 ppb (5) N/A N/A 28.0
 
April 12, 2019, 11 a.m. 23.0 ppb (21) 2.2 ppb (2) N/A 21.0 ppb (19) N/A N/A 6.0 ppb (5) 0.34 ppb (4) N/A N/A 21.0
 
April 12, 2019, 10 a.m. 24.9 ppb (23) 2.7 ppb (3) N/A 22.0 ppb (20) N/A N/A 8.0 ppb (6) 0.35 ppb (4) N/A N/A 23.0
 
April 12, 2019, 9 a.m. 11.0 ppb (10) 0.5 ppb (0) N/A 11.0 ppb (10) N/A N/A 21.0 ppb (16) 0.23 ppb (3) N/A N/A 16.0
 
April 12, 2019, 8 a.m. 6.2 ppb (6) 0.2 ppb (0) N/A 6.0 ppb (6) N/A N/A 27.0 ppb (21) 0.22 ppb (2) N/A N/A 21.0
 
April 12, 2019, 7 a.m. 14.3 ppb (13) 1.1 ppb (1) N/A 13.0 ppb (12) N/A N/A 22.0 ppb (17) 0.26 ppb (3) N/A N/A 17.0
 
April 12, 2019, 6 a.m. 18.3 ppb (17) 1.1 ppb (1) N/A 17.0 ppb (16) N/A N/A 19.0 ppb (15) 0.29 ppb (3) N/A N/A 17.0
 
April 12, 2019, 5 a.m. 11.9 ppb (11) 0.5 ppb (0) N/A 11.0 ppb (10) N/A N/A 24.0 ppb (18) 0.27 ppb (3) N/A N/A 18.0
 
April 12, 2019, 4 a.m. 18.1 ppb (17) 1.4 ppb (1) N/A 17.0 ppb (16) N/A N/A 22.0 ppb (17) 0.32 ppb (4) N/A N/A 17.0
 
April 12, 2019, 3 a.m. 18.4 ppb (17) 1.4 ppb (1) N/A 17.0 ppb (16) N/A N/A 24.0 ppb (18) 0.29 ppb (3) N/A N/A 18.0
 
April 12, 2019, 2 a.m. 14.9 ppb (14) 1.5 ppb (1) N/A 13.0 ppb (12) N/A N/A 28.0 ppb (22) 0.3 ppb (3) N/A N/A 22.0
 
April 12, 2019, 1 a.m. 16.8 ppb (16) 2.0 ppb (2) N/A 15.0 ppb (14) N/A N/A 31.0 ppb (24) 0.3 ppb (3) N/A N/A 24.0
 
April 12, 2019, midnight 13.4 ppb (12) 2.2 ppb (2) N/A 11.0 ppb (10) N/A N/A 37.0 ppb (28) 0.28 ppb (3) N/A N/A 28.0
 
April 11, 2019, 11 p.m. 13.8 ppb (13) 2.2 ppb (2) N/A 12.0 ppb (11) N/A N/A 38.0 ppb (29) 0.32 ppb (4) N/A N/A 29.0
 
April 11, 2019, 10 p.m. 16.4 ppb (15) 2.8 ppb (3) N/A 14.0 ppb (13) N/A N/A 37.0 ppb (28) 0.33 ppb (4) N/A N/A 28.0
 
April 11, 2019, 9 p.m. 14.5 ppb (13) 2.9 ppb (3) N/A 12.0 ppb (11) N/A N/A 39.0 ppb (30) 0.32 ppb (4) N/A N/A 30.0
 
April 11, 2019, 8 p.m. 15.4 ppb (14) 3.5 ppb (3) N/A 12.0 ppb (11) N/A N/A 39.0 ppb (30) 0.32 ppb (4) N/A N/A 30.0
 
April 11, 2019, 7 p.m. 12.8 ppb (12) 3.2 ppb (3) N/A 10.0 ppb (9) N/A N/A 40.0 ppb (31) 0.27 ppb (3) N/A N/A 31.0
 
April 11, 2019, 6 p.m. 12.1 ppb (11) 3.4 ppb (3) N/A 9.0 ppb (8) N/A N/A 37.0 ppb (28) 0.24 ppb (3) N/A N/A 28.0
 
April 11, 2019, 5 p.m. 18.8 ppb (17) 5.3 ppb (5) N/A 13.0 ppb (12) N/A N/A 31.0 ppb (24) 0.3 ppb (3) N/A N/A 24.0
 
April 11, 2019, 4 p.m. 22.0 ppb (20) 6.3 ppb (6) N/A 16.0 ppb (15) N/A N/A 29.0 ppb (22) 0.34 ppb (4) N/A N/A 22.0
 
April 11, 2019, 3 p.m. 51.7 ppb (48) 22.6 ppb (21) N/A 29.0 ppb (27) N/A N/A 15.0 ppb (12) 0.63 ppb (7) N/A N/A 48.0
 
April 11, 2019, 2 p.m. 72.1 ppb (69) 37.6 ppb (35) N/A 34.0 ppb (31) N/A N/A 6.0 ppb (5) 0.77 ppb (9) N/A N/A 69.0
 
April 11, 2019, 1 p.m. 75.2 ppb (73) 37.7 ppb (35) N/A 38.0 ppb (35) N/A N/A 3.0 ppb (2) 0.72 ppb (8) N/A N/A 73.0
 
April 11, 2019, noon 45.8 ppb (42) 11.9 ppb (11) N/A 34.0 ppb (31) N/A N/A 3.0 ppb (2) 0.54 ppb (6) N/A N/A 42.0
 
April 11, 2019, 11 a.m. 27.8 ppb (26) 1.6 ppb (1) N/A 26.0 ppb (24) N/A N/A 9.0 ppb (7) 0.36 ppb (4) N/A N/A 26.0
 
April 11, 2019, 10 a.m. 25.0 ppb (23) 1.3 ppb (1) N/A 24.0 ppb (22) N/A N/A 10.0 ppb (8) 0.31 ppb (3) N/A N/A 23.0
 
April 11, 2019, 9 a.m. 28.3 ppb (26) 1.4 ppb (1) N/A 27.0 ppb (25) N/A N/A 9.0 ppb (7) 0.35 ppb (4) N/A N/A 26.0
 
April 11, 2019, 8 a.m. 34.1 ppb (32) 3.1 ppb (3) N/A 31.0 ppb (29) N/A N/A 5.0 ppb (4) 0.41 ppb (5) N/A N/A 32.0
 
April 11, 2019, 7 a.m. 37.1 ppb (34) 3.3 ppb (3) N/A 34.0 ppb (31) N/A N/A 5.0 ppb (4) 0.48 ppb (5) N/A N/A 34.0
 
April 11, 2019, 6 a.m. 33.3 ppb (31) 2.1 ppb (2) N/A 31.0 ppb (29) N/A N/A 8.0 ppb (6) 0.47 ppb (5) N/A N/A 31.0
 
April 11, 2019, 5 a.m. 32.5 ppb (30) 1.6 ppb (1) N/A 31.0 ppb (29) N/A N/A 10.0 ppb (8) 0.43 ppb (5) N/A N/A 30.0
 
April 11, 2019, 4 a.m. 25.6 ppb (24) 1.4 ppb (1) N/A 24.0 ppb (22) N/A N/A 17.0 ppb (13) 0.37 ppb (4) N/A N/A 24.0
 
April 11, 2019, 3 a.m. 18.0 ppb (17) 2.0 ppb (2) N/A 16.0 ppb (15) N/A N/A 27.0 ppb (21) 0.31 ppb (3) N/A N/A 21.0
 
April 11, 2019, 2 a.m. 12.1 ppb (11) 1.5 ppb (1) N/A 11.0 ppb (10) N/A N/A 32.0 ppb (25) 0.3 ppb (3) N/A N/A 25.0
 
April 11, 2019, 1 a.m. 10.9 ppb (10) 2.3 ppb (2) N/A 9.0 ppb (8) N/A N/A 36.0 ppb (28) 0.26 ppb (3) N/A N/A 28.0
 
April 11, 2019, midnight 10.0 ppb (9) 2.3 ppb (2) N/A 8.0 ppb (7) N/A N/A 39.0 ppb (30) 0.27 ppb (3) N/A N/A 30.0
 
April 10, 2019, 11 p.m. 8.4 ppb (8) 1.8 ppb (2) N/A 7.0 ppb (6) N/A N/A 41.0 ppb (32) 0.26 ppb (3) N/A N/A 32.0
 
April 10, 2019, 10 p.m. 8.6 ppb (8) 2.1 ppb (2) N/A 7.0 ppb (6) N/A N/A 43.0 ppb (33) 0.26 ppb (3) N/A N/A 33.0
 
April 10, 2019, 9 p.m. 6.0 ppb (6) 1.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 48.0 ppb (37) 0.24 ppb (3) N/A N/A 37.0
 
April 10, 2019, 8 p.m. 6.5 ppb (6) 1.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 47.0 ppb (36) 0.23 ppb (3) N/A N/A 36.0
 
April 10, 2019, 7 p.m. 8.3 ppb (8) 2.1 ppb (2) N/A 6.0 ppb (6) N/A N/A 43.0 ppb (33) 0.23 ppb (3) N/A N/A 33.0
 
April 10, 2019, 6 p.m. 12.5 ppb (12) 3.4 ppb (3) N/A 9.0 ppb (8) N/A N/A 37.0 ppb (28) 0.25 ppb (3) N/A N/A 28.0
 
April 10, 2019, 5 p.m. 14.3 ppb (13) 4.2 ppb (4) N/A 10.0 ppb (9) N/A N/A 35.0 ppb (27) 0.26 ppb (3) N/A N/A 27.0
 
April 10, 2019, 4 p.m. 25.1 ppb (23) 8.3 ppb (8) N/A 17.0 ppb (16) N/A N/A 29.0 ppb (22) 0.31 ppb (3) N/A N/A 23.0
 
April 10, 2019, 3 p.m. 34.8 ppb (32) 11.0 ppb (10) N/A 24.0 ppb (22) N/A N/A 21.0 ppb (16) 0.38 ppb (4) N/A N/A 32.0
 
April 10, 2019, 2 p.m. 56.3 ppb (52) 20.3 ppb (19) N/A 36.0 ppb (33) N/A N/A 15.0 ppb (12) 0.44 ppb (5) N/A N/A 52.0
 
April 10, 2019, 1 p.m. 67.6 ppb (64) 21.1 ppb (20) N/A 47.0 ppb (44) N/A N/A 7.0 ppb (5) 0.47 ppb (5) N/A N/A 64.0
 
April 10, 2019, noon 27.8 ppb (26) 1.0 ppb (1) N/A 27.0 ppb (25) N/A N/A 15.0 ppb (12) 0.32 ppb (4) N/A N/A 26.0
 
April 10, 2019, 11 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 37.0 ppb (28) 0.19 ppb (2) N/A N/A 28.0
 
April 10, 2019, 10 a.m. 4.7 ppb (4) -0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 38.0 ppb (29) 0.19 ppb (2) N/A N/A 29.0
 
April 10, 2019, 9 a.m. 2.8 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
 
April 10, 2019, 8 a.m. 1.5 ppb (1) -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
 
April 10, 2019, 7 a.m. 1.6 ppb (1) -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
 
April 10, 2019, 6 a.m. 3.1 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (34) 0.19 ppb (2) N/A N/A 34.0
 
April 10, 2019, 5 a.m. 3.5 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (34) 0.19 ppb (2) N/A N/A 34.0
 
April 10, 2019, 4 a.m. 3.5 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (34) 0.19 ppb (2) N/A N/A 34.0
 
April 10, 2019, 3 a.m. 4.4 ppb (4) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 46.0 ppb (35) 0.19 ppb (2) N/A N/A 35.0
 
April 10, 2019, 2 a.m. 3.8 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 46.0 ppb (35) 0.19 ppb (2) N/A N/A 35.0
 
April 10, 2019, 1 a.m. 6.6 ppb (6) 1.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 42.0 ppb (32) 0.22 ppb (2) N/A N/A 32.0
 
April 10, 2019, midnight 6.8 ppb (6) 1.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 36.0 ppb (28) 0.21 ppb (2) N/A N/A 28.0
 
April 9, 2019, 11 p.m. 6.8 ppb (6) 1.8 ppb (2) N/A 5.0 ppb (5) N/A N/A 38.0 ppb (29) 0.21 ppb (2) N/A N/A 29.0
 
April 9, 2019, 10 p.m. 7.8 ppb (7) 1.8 ppb (2) N/A 6.0 ppb (6) N/A N/A 39.0 ppb (30) 0.22 ppb (2) N/A N/A 30.0
 
April 9, 2019, 9 p.m. 9.5 ppb (9) 2.4 ppb (2) N/A 7.0 ppb (6) N/A N/A 37.0 ppb (28) 0.24 ppb (3) N/A N/A 28.0
 
April 9, 2019, 8 p.m. 13.2 ppb (12) 3.5 ppb (3) N/A 10.0 ppb (9) N/A N/A 34.0 ppb (26) 0.28 ppb (3) N/A N/A 26.0
 
April 9, 2019, 7 p.m. 17.9 ppb (17) 6.4 ppb (6) N/A 12.0 ppb (11) N/A N/A 27.0 ppb (21) 0.32 ppb (4) N/A N/A 21.0
 
April 9, 2019, 6 p.m. 16.2 ppb (15) 5.7 ppb (5) N/A 11.0 ppb (10) N/A N/A 26.0 ppb (20) 0.32 ppb (4) N/A N/A 20.0
 
April 9, 2019, 5 p.m. 16.1 ppb (15) 5.5 ppb (5) N/A 11.0 ppb (10) N/A N/A 25.0 ppb (19) 0.28 ppb (3) N/A N/A 19.0
 
April 9, 2019, 4 p.m. 15.8 ppb (15) 5.2 ppb (5) N/A 11.0 ppb (10) N/A N/A 24.0 ppb (18) 0.27 ppb (3) N/A N/A 18.0
 
April 9, 2019, 3 p.m. 23.9 ppb (22) 7.9 ppb (7) N/A 16.0 ppb (15) N/A N/A 21.0 ppb (16) 0.33 ppb (4) N/A N/A 22.0
 
April 9, 2019, 2 p.m. 75.9 ppb (73) 44.9 ppb (42) N/A 31.0 ppb (29) N/A N/A 5.0 ppb (4) 0.66 ppb (7) N/A N/A 73.0
 
April 9, 2019, 1 p.m. 84.5 ppb (82) 51.9 ppb (48) N/A 33.0 ppb (31) N/A N/A 3.0 ppb (2) 0.68 ppb (8) N/A N/A 82.0
 
April 9, 2019, noon 61.2 ppb (58) 30.1 ppb (28) N/A 31.0 ppb (29) N/A N/A 2.0 ppb (2) 0.65 ppb (7) N/A N/A 58.0
 
April 9, 2019, 11 a.m. 30.0 ppb (28) 2.9 ppb (3) N/A 27.0 ppb (25) N/A N/A 5.0 ppb (4) 0.39 ppb (4) N/A N/A 28.0
 
April 9, 2019, 10 a.m. 32.8 ppb (30) 3.8 ppb (4) N/A 29.0 ppb (27) N/A N/A 4.0 ppb (3) 0.4 ppb (4) N/A N/A 30.0
 
April 9, 2019, 9 a.m. 30.2 ppb (28) 3.0 ppb (3) N/A 27.0 ppb (25) N/A N/A 6.0 ppb (5) 0.4 ppb (4) N/A N/A 28.0
 
April 9, 2019, 8 a.m. 26.9 ppb (25) 2.0 ppb (2) N/A 25.0 ppb (23) N/A N/A 8.0 ppb (6) 0.41 ppb (5) N/A N/A 25.0
 
April 9, 2019, 7 a.m. 30.0 ppb (28) 3.7 ppb (3) N/A 26.0 ppb (24) N/A N/A 8.0 ppb (6) 0.41 ppb (5) N/A N/A 28.0
 
April 9, 2019, 6 a.m. 38.7 ppb (36) 6.4 ppb (6) N/A 32.0 ppb (30) N/A N/A 4.0 ppb (3) 0.5 ppb (6) N/A N/A 36.0
 
April 9, 2019, 5 a.m. 30.0 ppb (28) 2.6 ppb (2) N/A 27.0 ppb (25) N/A N/A 9.0 ppb (7) 0.46 ppb (5) N/A N/A 28.0
 
April 9, 2019, 4 a.m. 45.9 ppb (42) 8.4 ppb (8) N/A 38.0 ppb (35) N/A N/A 5.0 ppb (4) 0.54 ppb (6) N/A N/A 42.0
 
April 9, 2019, 3 a.m. 27.7 ppb (26) 3.3 ppb (3) N/A 24.0 ppb (22) N/A N/A 15.0 ppb (12) 0.44 ppb (5) N/A N/A 26.0
 
April 9, 2019, 2 a.m. 15.4 ppb (14) 1.5 ppb (1) N/A 14.0 ppb (13) N/A N/A 25.0 ppb (19) 0.32 ppb (4) N/A N/A 19.0
 
April 9, 2019, 1 a.m. 12.8 ppb (12) 1.2 ppb (1) N/A 12.0 ppb (11) N/A N/A 37.0 ppb (28) 0.32 ppb (4) N/A N/A 28.0
 
April 9, 2019, midnight 14.3 ppb (13) 1.0 ppb (1) N/A 13.0 ppb (12) N/A N/A 51.0 ppb (39) 0.36 ppb (4) N/A N/A 39.0
 
April 8, 2019, 11 p.m. 22.2 ppb (21) 1.5 ppb (1) N/A 21.0 ppb (19) N/A N/A 62.0 ppb (48) 0.48 ppb (5) N/A N/A 48.0
 
April 8, 2019, 10 p.m. 12.2 ppb (11) 1.0 ppb (1) N/A 11.0 ppb (10) N/A N/A 62.0 ppb (48) 0.36 ppb (4) N/A N/A 48.0
 
April 8, 2019, 9 p.m. 13.7 ppb (13) 1.8 ppb (2) N/A 12.0 ppb (11) N/A N/A 59.0 ppb (45) 0.36 ppb (4) N/A N/A 45.0
 
April 8, 2019, 8 p.m. 11.5 ppb (11) 2.0 ppb (2) N/A 9.0 ppb (8) N/A N/A 51.0 ppb (39) 0.29 ppb (3) N/A N/A 39.0
 
April 8, 2019, 7 p.m. 13.7 ppb (13) 2.9 ppb (3) N/A 11.0 ppb (10) N/A N/A 47.0 ppb (36) 0.29 ppb (3) N/A N/A 36.0
 
April 8, 2019, 6 p.m. 31.9 ppb (30) 7.4 ppb (7) N/A 25.0 ppb (23) N/A N/A 39.0 ppb (30) 0.43 ppb (5) N/A N/A 30.0
 
April 8, 2019, 5 p.m. 41.6 ppb (39) 11.3 ppb (10) N/A 30.0 ppb (28) N/A N/A 28.0 ppb (22) 0.46 ppb (5) N/A N/A 39.0
 
April 8, 2019, 4 p.m. 61.1 ppb (58) 22.4 ppb (21) N/A 39.0 ppb (36) N/A N/A 18.0 ppb (14) 0.62 ppb (7) N/A N/A 58.0
 
April 8, 2019, 3 p.m. 104.4 ppb (101) 56.8 ppb (53) N/A 47.0 ppb (44) N/A N/A 8.0 ppb (6) 1.0 ppb (11) N/A N/A 101.0
 
April 8, 2019, 2 p.m. 95.1 ppb (94) 57.0 ppb (53) N/A 38.0 ppb (35) N/A N/A 5.0 ppb (4) 1.05 ppb (12) N/A N/A 94.0
 
April 8, 2019, 1 p.m. 68.0 ppb (65) 33.2 ppb (31) N/A 35.0 ppb (32) N/A N/A 3.0 ppb (2) 0.78 ppb (9) N/A N/A 65.0
 
April 8, 2019, noon 46.1 ppb (43) 13.3 ppb (12) N/A 33.0 ppb (31) N/A N/A 3.0 ppb (2) 0.65 ppb (7) N/A N/A 43.0
 
April 8, 2019, 11 a.m. 26.9 ppb (25) 2.4 ppb (2) N/A 25.0 ppb (23) N/A N/A 5.0 ppb (4) 0.41 ppb (5) N/A N/A 25.0
 
April 8, 2019, 10 a.m. 30.8 ppb (29) 3.4 ppb (3) N/A 28.0 ppb (26) N/A N/A 6.0 ppb (5) 0.45 ppb (5) N/A N/A 29.0
 
April 8, 2019, 9 a.m. 38.6 ppb (36) 4.8 ppb (4) N/A 34.0 ppb (31) N/A N/A 5.0 ppb (4) 0.63 ppb (7) N/A N/A 36.0
 
April 8, 2019, 8 a.m. 41.3 ppb (38) 5.4 ppb (5) N/A 36.0 ppb (33) N/A N/A 4.0 ppb (3) 0.72 ppb (8) N/A N/A 38.0
 
April 8, 2019, 7 a.m. 34.8 ppb (32) 2.4 ppb (2) N/A 32.0 ppb (30) N/A N/A 7.0 ppb (5) 0.7 ppb (8) N/A N/A 32.0
 
April 8, 2019, 6 a.m. 34.6 ppb (32) 3.6 ppb (3) N/A 31.0 ppb (29) N/A N/A 10.0 ppb (8) 0.74 ppb (8) N/A N/A 32.0
 
April 8, 2019, 5 a.m. 34.0 ppb (31) 1.7 ppb (2) N/A 32.0 ppb (30) N/A N/A 12.0 ppb (9) 0.73 ppb (8) N/A N/A 31.0
 
April 8, 2019, 4 a.m. 27.5 ppb (25) 1.2 ppb (1) N/A 26.0 ppb (24) N/A N/A 22.0 ppb (17) 0.63 ppb (7) N/A N/A 25.0
 
April 8, 2019, 3 a.m. 23.1 ppb (21) 1.6 ppb (1) N/A 22.0 ppb (20) N/A N/A 32.0 ppb (25) 0.53 ppb (6) N/A N/A 25.0
 
April 8, 2019, 2 a.m. 17.5 ppb (16) 0.8 ppb (1) N/A 17.0 ppb (16) N/A N/A 40.0 ppb (31) 0.47 ppb (5) N/A N/A 31.0
 
April 8, 2019, 1 a.m. 10.7 ppb (10) 0.4 ppb (0) N/A 10.0 ppb (9) N/A N/A 52.0 ppb (40) 0.4 ppb (4) N/A N/A 40.0
 
April 8, 2019, midnight 5.7 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 56.0 ppb (43) 0.29 ppb (3) N/A N/A 43.0
 
April 7, 2019, 11 p.m. 4.1 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 53.0 ppb (41) 0.24 ppb (3) N/A N/A 41.0
 
April 7, 2019, 10 p.m. 4.1 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 53.0 ppb (41) 0.24 ppb (3) N/A N/A 41.0
 
April 7, 2019, 9 p.m. 6.2 ppb (6) 0.7 ppb (1) N/A 6.0 ppb (6) N/A N/A 53.0 ppb (41) 0.29 ppb (3) N/A N/A 41.0
 
April 7, 2019, 8 p.m. 9.0 ppb (8) 1.5 ppb (1) N/A 8.0 ppb (7) N/A N/A 48.0 ppb (37) 0.34 ppb (4) N/A N/A 37.0
 
April 7, 2019, 7 p.m. 9.6 ppb (9) 1.8 ppb (2) N/A 8.0 ppb (7) N/A N/A 43.0 ppb (33) 0.34 ppb (4) N/A N/A 33.0
 
April 7, 2019, 6 p.m. 10.7 ppb (10) 2.4 ppb (2) N/A 8.0 ppb (7) N/A N/A 39.0 ppb (30) 0.34 ppb (4) N/A N/A 30.0
 
April 7, 2019, 5 p.m. 13.7 ppb (13) 3.6 ppb (3) N/A 10.0 ppb (9) N/A N/A 32.0 ppb (25) 0.33 ppb (4) N/A N/A 25.0
 
April 7, 2019, 4 p.m. 18.2 ppb (17) 5.9 ppb (5) N/A 12.0 ppb (11) N/A N/A 23.0 ppb (18) 0.36 ppb (4) N/A N/A 18.0
 
April 7, 2019, 3 p.m. 25.0 ppb (23) 9.8 ppb (9) N/A 15.0 ppb (14) N/A N/A 15.0 ppb (12) 0.43 ppb (5) N/A N/A 23.0
 
April 7, 2019, 2 p.m. 31.2 ppb (29) 13.2 ppb (12) N/A 18.0 ppb (17) N/A N/A 7.0 ppb (5) 0.5 ppb (6) N/A N/A 29.0
 
April 7, 2019, 1 p.m. 32.1 ppb (30) 9.2 ppb (9) N/A 23.0 ppb (21) N/A N/A 3.0 ppb (2) 0.5 ppb (6) N/A N/A 30.0
 
April 7, 2019, noon 32.4 ppb (30) 5.7 ppb (5) N/A 27.0 ppb (25) N/A N/A 3.0 ppb (2) 0.46 ppb (5) N/A N/A 30.0
 
April 7, 2019, 11 a.m. 20.1 ppb (19) 1.9 ppb (2) N/A 18.0 ppb (17) N/A N/A 4.0 ppb (3) 0.43 ppb (5) N/A N/A 19.0
 
April 7, 2019, 10 a.m. 18.7 ppb (17) 2.2 ppb (2) N/A 16.0 ppb (15) N/A N/A 5.0 ppb (4) 0.45 ppb (5) N/A N/A 17.0
 
April 7, 2019, 9 a.m. 18.1 ppb (17) 1.8 ppb (2) N/A 16.0 ppb (15) N/A N/A 7.0 ppb (5) 0.43 ppb (5) N/A N/A 17.0
 
April 7, 2019, 8 a.m. 20.7 ppb (19) 2.1 ppb (2) N/A 19.0 ppb (18) N/A N/A 7.0 ppb (5) 0.49 ppb (5) N/A N/A 19.0
 
April 7, 2019, 7 a.m. 18.7 ppb (17) 1.6 ppb (1) N/A 17.0 ppb (16) N/A N/A 11.0 ppb (8) 0.39 ppb (4) N/A N/A 17.0
 
April 7, 2019, 6 a.m. 17.3 ppb (16) 1.5 ppb (1) N/A 16.0 ppb (15) N/A N/A 14.0 ppb (11) 0.35 ppb (4) N/A N/A 16.0
 
April 7, 2019, 5 a.m. 16.3 ppb (15) 1.7 ppb (2) N/A 15.0 ppb (14) N/A N/A 18.0 ppb (14) 0.29 ppb (3) N/A N/A 15.0
 
April 7, 2019, 4 a.m. 10.8 ppb (10) 1.1 ppb (1) N/A 10.0 ppb (9) N/A N/A 23.0 ppb (18) 0.27 ppb (3) N/A N/A 18.0
 
April 7, 2019, 3 a.m. 8.6 ppb (8) 0.8 ppb (1) N/A 8.0 ppb (7) N/A N/A 26.0 ppb (20) 0.25 ppb (3) N/A N/A 20.0
 
April 7, 2019, 2 a.m. 7.9 ppb (7) 1.2 ppb (1) N/A 7.0 ppb (6) N/A N/A 29.0 ppb (22) 0.26 ppb (3) N/A N/A 22.0
 
April 7, 2019, 1 a.m. 6.1 ppb (6) 0.9 ppb (1) N/A 5.0 ppb (5) N/A N/A 32.0 ppb (25) 0.22 ppb (2) N/A N/A 25.0
 
April 7, 2019, midnight 6.4 ppb (6) 1.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 35.0 ppb (27) 0.21 ppb (2) N/A N/A 27.0
 
April 6, 2019, 11 p.m. 6.4 ppb (6) 1.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 42.0 ppb (32) 0.21 ppb (2) N/A N/A 32.0
 
April 6, 2019, 10 p.m. 6.5 ppb (6) 1.1 ppb (1) N/A 5.0 ppb (5) N/A N/A 43.0 ppb (33) 0.24 ppb (3) N/A N/A 33.0
 
April 6, 2019, 9 p.m. 7.6 ppb (7) 1.8 ppb (2) N/A 6.0 ppb (6) N/A N/A 41.0 ppb (32) 0.24 ppb (3) N/A N/A 32.0
 
April 6, 2019, 8 p.m. 5.6 ppb (5) 1.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (28) 0.22 ppb (2) N/A N/A 28.0
 
April 6, 2019, 7 p.m. 4.5 ppb (4) 1.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 34.0 ppb (26) 0.2 ppb (2) N/A N/A 26.0
 
April 6, 2019, 6 p.m. 6.3 ppb (6) 2.3 ppb (2) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (23) 0.22 ppb (2) N/A N/A 23.0
 
April 6, 2019, 5 p.m. 8.7 ppb (8) 3.3 ppb (3) N/A 5.0 ppb (5) N/A N/A 25.0 ppb (19) 0.24 ppb (3) N/A N/A 19.0
 
April 6, 2019, 4 p.m. 9.1 ppb (8) 3.6 ppb (3) N/A 6.0 ppb (6) N/A N/A 22.0 ppb (17) 0.24 ppb (3) N/A N/A 17.0
 
April 6, 2019, 3 p.m. 11.5 ppb (11) 3.6 ppb (3) N/A 8.0 ppb (7) N/A N/A 16.0 ppb (12) 0.27 ppb (3) N/A N/A 12.0
 
April 6, 2019, 2 p.m. 18.7 ppb (17) 7.4 ppb (7) N/A 11.0 ppb (10) N/A N/A 15.0 ppb (12) 0.3 ppb (3) N/A N/A 17.0
 
April 6, 2019, 1 p.m. 6.7 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 17.0 ppb (13) 0.2 ppb (2) N/A N/A 13.0
 
April 6, 2019, noon 6.5 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A 18.0 ppb (14) 0.2 ppb (2) N/A N/A 14.0
 
April 6, 2019, 11 a.m. 7.9 ppb (7) 0.3 ppb (0) N/A 8.0 ppb (7) N/A N/A 17.0 ppb (13) 0.2 ppb (2) N/A N/A 13.0
 
April 6, 2019, 10 a.m. 9.3 ppb (9) 0.3 ppb (0) N/A 9.0 ppb (8) N/A N/A 15.0 ppb (12) 0.22 ppb (2) N/A N/A 12.0
 
April 6, 2019, 9 a.m. 8.5 ppb (8) 0.6 ppb (1) N/A 8.0 ppb (7) N/A N/A 16.0 ppb (12) 0.23 ppb (3) N/A N/A 12.0
 
April 6, 2019, 8 a.m. 6.7 ppb (6) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 18.0 ppb (14) 0.24 ppb (3) N/A N/A 14.0
 
April 6, 2019, 7 a.m. 8.4 ppb (8) 0.7 ppb (1) N/A 8.0 ppb (7) N/A N/A 18.0 ppb (14) 0.2 ppb (2) N/A N/A 14.0
 
April 6, 2019, 6 a.m. 9.0 ppb (8) 1.1 ppb (1) N/A 8.0 ppb (7) N/A N/A 18.0 ppb (14) 0.24 ppb (3) N/A N/A 14.0
 
April 6, 2019, 5 a.m. 11.6 ppb (11) 1.5 ppb (1) N/A 10.0 ppb (9) N/A N/A 17.0 ppb (13) 0.24 ppb (3) N/A N/A 13.0
 
April 6, 2019, 4 a.m. 10.0 ppb (9) 1.5 ppb (1) N/A 8.0 ppb (7) N/A N/A 19.0 ppb (15) 0.24 ppb (3) N/A N/A 15.0
 
April 6, 2019, 3 a.m. 8.4 ppb (8) 1.0 ppb (1) N/A 7.0 ppb (6) N/A N/A 22.0 ppb (17) 0.23 ppb (3) N/A N/A 17.0