AQSQID: 060371302

Site Name: Compton

Location: Compton, CA

Reporting: False, Located: True

Current AQI: None

Compton CA, US: 33.9014, -118.205

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 20, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
March 20, 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
March 20, 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
March 20, 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
March 20, 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
March 20, 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
March 20, 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
March 20, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) 0.25 ppb (3) N/A N/A 23.0
 
March 20, 2019, 3 p.m. 14.1 ppb (13) 2.5 ppb (2) N/A 12.0 ppb (11) N/A N/A 24.0 ppb (18) 0.31 ppb (3) N/A N/A 18.0
 
March 20, 2019, 2 p.m. 25.2 ppb (23) 3.9 ppb (4) N/A 21.0 ppb (19) N/A N/A 14.0 ppb (11) 0.46 ppb (5) N/A N/A 23.0
 
March 20, 2019, 1 p.m. 19.1 ppb (18) 1.0 ppb (1) N/A 18.0 ppb (17) N/A N/A 15.0 ppb (12) 0.43 ppb (5) N/A N/A 18.0
 
March 20, 2019, noon 7.4 ppb (7) 0.3 ppb (0) N/A 7.0 ppb (6) N/A N/A 29.0 ppb (22) 0.25 ppb (3) N/A N/A 22.0
 
March 20, 2019, 11 a.m. 4.1 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 33.0 ppb (25) 0.18 ppb (2) N/A N/A 25.0
 
March 20, 2019, 10 a.m. 3.3 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (27) 0.17 ppb (2) N/A N/A 27.0
 
March 20, 2019, 9 a.m. 3.7 ppb (3) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (28) 0.16 ppb (2) N/A N/A 28.0
 
March 20, 2019, 8 a.m. 3.7 ppb (3) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 38.0 ppb (29) 0.16 ppb (2) N/A N/A 29.0
 
March 20, 2019, 7 a.m. 3.0 ppb (3) 0.1 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
 
March 20, 2019, 6 a.m. 3.6 ppb (3) 0.1 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
 
March 20, 2019, 5 a.m. 2.9 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (31) 0.16 ppb (2) N/A N/A 31.0
 
March 20, 2019, 4 a.m. 5.0 ppb (5) 0.1 ppb (0) N/A 5.0 ppb (5) N/A N/A 38.0 ppb (29) 0.17 ppb (2) N/A N/A 29.0
 
March 20, 2019, 3 a.m. 4.0 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A N/A 40.0 ppb (31) 0.16 ppb (2) N/A N/A 31.0
 
March 20, 2019, 2 a.m. 4.8 ppb (4) 0.2 ppb (0) N/A 5.0 ppb (5) N/A N/A 38.0 ppb (29) 0.18 ppb (2) N/A N/A 29.0
 
March 20, 2019, 1 a.m. 4.4 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 40.0 ppb (31) 0.18 ppb (2) N/A N/A 31.0
 
March 20, 2019, midnight 4.5 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 43.0 ppb (33) 0.17 ppb (2) N/A N/A 33.0
 
March 19, 2019, 11 p.m. 3.6 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 46.0 ppb (35) 0.18 ppb (2) N/A N/A 35.0
 
March 19, 2019, 10 p.m. 4.9 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 47.0 ppb (36) 0.18 ppb (2) N/A N/A 36.0
 
March 19, 2019, 9 p.m. 6.8 ppb (6) 1.5 ppb (1) N/A 5.0 ppb (5) N/A N/A 45.0 ppb (35) 0.18 ppb (2) N/A N/A 35.0
 
March 19, 2019, 8 p.m. 4.9 ppb (5) 1.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 46.0 ppb (35) 0.18 ppb (2) N/A N/A 35.0
 
March 19, 2019, 7 p.m. 5.5 ppb (5) 1.3 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
 
March 19, 2019, 6 p.m. 7.7 ppb (7) 2.1 ppb (2) N/A 6.0 ppb (6) N/A N/A 46.0 ppb (35) 0.21 ppb (2) N/A N/A 35.0
 
March 19, 2019, 5 p.m. 16.4 ppb (15) 4.8 ppb (4) N/A 12.0 ppb (11) N/A N/A 34.0 ppb (26) 0.32 ppb (4) N/A N/A 26.0
 
March 19, 2019, 4 p.m. 32.0 ppb (30) 10.9 ppb (10) N/A 21.0 ppb (19) N/A N/A 13.0 ppb (10) 0.47 ppb (5) N/A N/A 30.0
 
March 19, 2019, 3 p.m. 61.0 ppb (57) 29.8 ppb (28) N/A 31.0 ppb (29) N/A N/A 3.0 ppb (2) 0.62 ppb (7) N/A N/A 57.0
 
March 19, 2019, 2 p.m. 59.0 ppb (55) 26.3 ppb (24) N/A 33.0 ppb (31) N/A N/A 1.0 ppb (1) 0.52 ppb (6) N/A N/A 55.0
 
March 19, 2019, 1 p.m. 38.7 ppb (36) 10.0 ppb (9) N/A 29.0 ppb (27) N/A N/A 2.0 ppb (2) 0.49 ppb (5) N/A N/A 36.0
 
March 19, 2019, noon 27.0 ppb (25) 2.3 ppb (2) N/A 25.0 ppb (23) N/A N/A 3.0 ppb (2) 0.47 ppb (5) N/A N/A 25.0
 
March 19, 2019, 11 a.m. 30.0 ppb (28) 4.6 ppb (4) N/A 25.0 ppb (23) N/A N/A 1.0 ppb (1) 0.4 ppb (4) N/A N/A 28.0
 
March 19, 2019, 10 a.m. 16.3 ppb (15) 1.3 ppb (1) N/A 15.0 ppb (14) N/A N/A 5.0 ppb (4) 0.35 ppb (4) N/A N/A 15.0
 
March 19, 2019, 9 a.m. 11.2 ppb (10) 0.6 ppb (1) N/A 11.0 ppb (10) N/A N/A 15.0 ppb (12) 0.29 ppb (3) N/A N/A 12.0
 
March 19, 2019, 8 a.m. 10.5 ppb (10) 0.6 ppb (1) N/A 10.0 ppb (9) N/A N/A 21.0 ppb (16) 0.29 ppb (3) N/A N/A 16.0
 
March 19, 2019, 7 a.m. 7.2 ppb (7) 0.3 ppb (0) N/A 7.0 ppb (6) N/A N/A 32.0 ppb (25) 0.24 ppb (3) N/A N/A 25.0
 
March 19, 2019, 6 a.m. 7.1 ppb (7) 0.4 ppb (0) N/A 7.0 ppb (6) N/A N/A 32.0 ppb (25) 0.22 ppb (2) N/A N/A 25.0
 
March 19, 2019, 5 a.m. 7.0 ppb (6) 0.4 ppb (0) N/A 7.0 ppb (6) N/A N/A 35.0 ppb (27) 0.22 ppb (2) N/A N/A 27.0
 
March 19, 2019, 4 a.m. 8.5 ppb (8) 0.4 ppb (0) N/A 8.0 ppb (7) N/A N/A 36.0 ppb (28) 0.23 ppb (3) N/A N/A 28.0
 
March 19, 2019, 3 a.m. 7.5 ppb (7) 0.3 ppb (0) N/A 7.0 ppb (6) N/A N/A 41.0 ppb (32) 0.22 ppb (2) N/A N/A 32.0
 
March 19, 2019, 2 a.m. 12.7 ppb (12) 0.4 ppb (0) N/A 12.0 ppb (11) N/A N/A 37.0 ppb (28) 0.27 ppb (3) N/A N/A 28.0
 
March 19, 2019, 1 a.m. 14.1 ppb (13) 0.6 ppb (1) N/A 13.0 ppb (12) N/A N/A 41.0 ppb (32) 0.27 ppb (3) N/A N/A 32.0
 
March 19, 2019, midnight 6.1 ppb (6) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 51.0 ppb (39) 0.22 ppb (2) N/A N/A 39.0
 
March 18, 2019, 11 p.m. 5.8 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 54.0 ppb (42) 0.21 ppb (2) N/A N/A 42.0
 
March 18, 2019, 10 p.m. 8.7 ppb (8) 1.2 ppb (1) N/A 7.0 ppb (6) N/A N/A 57.0 ppb (44) 0.25 ppb (3) N/A N/A 44.0
 
March 18, 2019, 9 p.m. 23.2 ppb (21) 4.6 ppb (4) N/A 19.0 ppb (18) N/A N/A 51.0 ppb (39) 0.28 ppb (3) N/A N/A 39.0
 
March 18, 2019, 8 p.m. 25.0 ppb (23) 4.7 ppb (4) N/A 20.0 ppb (19) N/A N/A 52.0 ppb (40) 0.28 ppb (3) N/A N/A 40.0
 
March 18, 2019, 7 p.m. 36.2 ppb (34) 8.4 ppb (8) N/A 28.0 ppb (26) N/A N/A 43.0 ppb (33) 0.34 ppb (4) N/A N/A 34.0
 
March 18, 2019, 6 p.m. 38.8 ppb (36) 10.3 ppb (10) N/A 24.0 ppb (22) N/A N/A 42.0 ppb (32) 0.44 ppb (5) N/A N/A 36.0
 
March 18, 2019, 5 p.m. 37.4 ppb (35) 9.4 ppb (9) N/A 28.0 ppb (26) N/A N/A 35.0 ppb (27) 0.55 ppb (6) N/A N/A 35.0
 
March 18, 2019, 4 p.m. 46.3 ppb (43) 17.0 ppb (16) N/A 29.0 ppb (27) N/A N/A 20.0 ppb (15) 0.68 ppb (8) N/A N/A 43.0
 
March 18, 2019, 3 p.m. 83.7 ppb (82) 46.2 ppb (43) N/A 38.0 ppb (35) N/A N/A 6.0 ppb (5) 1.1 ppb (12) N/A N/A 82.0
 
March 18, 2019, 2 p.m. 111.1 ppb (102) 77.5 ppb (75) N/A 34.0 ppb (31) N/A N/A 1.0 ppb (1) 1.68 ppb (19) N/A N/A 102.0
 
March 18, 2019, 1 p.m. 82.0 ppb (80) 53.4 ppb (49) N/A 29.0 ppb (27) N/A N/A 1.0 ppb (1) 1.48 ppb (16) N/A N/A 80.0
 
March 18, 2019, noon 46.6 ppb (43) 21.6 ppb (20) N/A 25.0 ppb (23) N/A N/A 1.0 ppb (1) 1.06 ppb (12) N/A N/A 43.0
 
March 18, 2019, 11 a.m. 21.1 ppb (20) 2.0 ppb (2) N/A 19.0 ppb (18) N/A N/A 8.0 ppb (6) 0.59 ppb (7) N/A N/A 20.0
 
March 18, 2019, 10 a.m. 18.5 ppb (17) 1.9 ppb (2) N/A 17.0 ppb (16) N/A N/A 12.0 ppb (9) 0.44 ppb (5) N/A N/A 17.0
 
March 18, 2019, 9 a.m. 11.3 ppb (10) 0.9 ppb (1) N/A 10.0 ppb (9) N/A N/A 25.0 ppb (19) 0.31 ppb (3) N/A N/A 19.0
 
March 18, 2019, 8 a.m. 9.4 ppb (9) 0.7 ppb (1) N/A 9.0 ppb (8) N/A N/A 30.0 ppb (23) 0.28 ppb (3) N/A N/A 23.0
 
March 18, 2019, 7 a.m. 5.9 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A 38.0 ppb (29) 0.2 ppb (2) N/A N/A 29.0
 
March 18, 2019, 6 a.m. 4.8 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 40.0 ppb (31) 0.19 ppb (2) N/A N/A 31.0
 
March 18, 2019, 5 a.m. 6.5 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 44.0 ppb (34) 0.23 ppb (3) N/A N/A 34.0
 
March 18, 2019, 4 a.m. 18.3 ppb (17) 0.6 ppb (1) N/A 18.0 ppb (17) N/A N/A 28.0 ppb (22) 0.44 ppb (5) N/A N/A 22.0
 
March 18, 2019, 3 a.m. 11.9 ppb (11) 0.4 ppb (0) N/A 12.0 ppb (11) N/A N/A 37.0 ppb (28) 0.31 ppb (3) N/A N/A 28.0
 
March 18, 2019, 2 a.m. 9.0 ppb (8) 0.2 ppb (0) N/A 9.0 ppb (8) N/A N/A 43.0 ppb (33) 0.27 ppb (3) N/A N/A 33.0
 
March 18, 2019, 1 a.m. 7.6 ppb (7) 0.3 ppb (0) N/A 7.0 ppb (6) N/A N/A 46.0 ppb (35) 0.22 ppb (2) N/A N/A 35.0
 
March 18, 2019, midnight 7.2 ppb (7) 0.7 ppb (1) N/A 6.0 ppb (6) N/A N/A 50.0 ppb (38) 0.24 ppb (3) N/A N/A 38.0
 
March 17, 2019, 11 p.m. 8.0 ppb (7) 1.1 ppb (1) N/A 7.0 ppb (6) N/A N/A 51.0 ppb (39) 0.27 ppb (3) N/A N/A 39.0
 
March 17, 2019, 10 p.m. 6.9 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 55.0 ppb (42) 0.25 ppb (3) N/A N/A 42.0
 
March 17, 2019, 9 p.m. 6.7 ppb (6) 0.9 ppb (1) N/A 6.0 ppb (6) N/A N/A 57.0 ppb (44) 0.24 ppb (3) N/A N/A 44.0
 
March 17, 2019, 8 p.m. 3.5 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 54.0 ppb (42) 0.19 ppb (2) N/A N/A 42.0
 
March 17, 2019, 7 p.m. 6.7 ppb (6) 1.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 50.0 ppb (38) 0.23 ppb (3) N/A N/A 38.0
 
March 17, 2019, 6 p.m. 9.2 ppb (9) 1.9 ppb (2) N/A 7.0 ppb (6) N/A N/A 44.0 ppb (34) 0.26 ppb (3) N/A N/A 34.0
 
March 17, 2019, 5 p.m. 13.9 ppb (13) 3.4 ppb (3) N/A 10.0 ppb (9) N/A N/A 35.0 ppb (27) 0.31 ppb (3) N/A N/A 27.0
 
March 17, 2019, 4 p.m. 24.2 ppb (22) 7.6 ppb (7) N/A 17.0 ppb (16) N/A N/A 23.0 ppb (18) 0.4 ppb (4) N/A N/A 22.0
 
March 17, 2019, 3 p.m. 32.0 ppb (30) 10.4 ppb (10) N/A 22.0 ppb (20) N/A N/A 14.0 ppb (11) 0.49 ppb (5) N/A N/A 30.0
 
March 17, 2019, 2 p.m. 42.7 ppb (40) 16.8 ppb (16) N/A 26.0 ppb (24) N/A N/A 5.0 ppb (4) 0.74 ppb (8) N/A N/A 40.0
 
March 17, 2019, 1 p.m. 74.7 ppb (72) 47.4 ppb (44) N/A 27.0 ppb (25) N/A N/A 1.0 ppb (1) 1.35 ppb (15) N/A N/A 72.0
 
March 17, 2019, noon 89.4 ppb (88) 65.8 ppb (63) N/A 24.0 ppb (22) N/A N/A 1.0 ppb (1) 1.83 ppb (20) N/A N/A 88.0
 
March 17, 2019, 11 a.m. 98.8 ppb (98) 73.6 ppb (71) N/A 25.0 ppb (23) N/A N/A 1.0 ppb (1) 1.98 ppb (22) N/A N/A 98.0
 
March 17, 2019, 10 a.m. 86.6 ppb (85) 59.1 ppb (55) N/A 27.0 ppb (25) N/A N/A 1.0 ppb (1) 1.85 ppb (21) N/A N/A 85.0
 
March 17, 2019, 9 a.m. 73.6 ppb (71) 43.4 ppb (40) N/A 30.0 ppb (28) N/A N/A 1.0 ppb (1) 1.59 ppb (18) N/A N/A 71.0
 
March 17, 2019, 8 a.m. 76.4 ppb (74) 44.9 ppb (42) N/A 31.0 ppb (29) N/A N/A 1.0 ppb (1) 1.64 ppb (18) N/A N/A 74.0
 
March 17, 2019, 7 a.m. 86.2 ppb (84) 53.1 ppb (49) N/A 33.0 ppb (31) N/A N/A 1.0 ppb (1) 1.84 ppb (20) N/A N/A 84.0
 
March 17, 2019, 6 a.m. 77.3 ppb (75) 42.6 ppb (39) N/A 35.0 ppb (32) N/A N/A 1.0 ppb (1) 1.57 ppb (17) N/A N/A 75.0
 
March 17, 2019, 5 a.m. 42.8 ppb (40) 9.5 ppb (9) N/A 33.0 ppb (31) N/A N/A 6.0 ppb (5) 1.06 ppb (12) N/A N/A 40.0
 
March 17, 2019, 4 a.m. 35.5 ppb (33) 3.0 ppb (3) N/A 33.0 ppb (31) N/A N/A 8.0 ppb (6) 0.74 ppb (8) N/A N/A 33.0
 
March 17, 2019, 3 a.m. 21.9 ppb (20) 0.8 ppb (1) N/A 21.0 ppb (19) N/A N/A 22.0 ppb (17) 0.47 ppb (5) N/A N/A 20.0
 
March 17, 2019, 2 a.m. 13.8 ppb (13) 0.4 ppb (0) N/A 13.0 ppb (12) N/A N/A 33.0 ppb (25) 0.33 ppb (4) N/A N/A 25.0
 
March 17, 2019, 1 a.m. 5.9 ppb (5) 0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 48.0 ppb (37) 0.22 ppb (2) N/A N/A 37.0
 
March 17, 2019, midnight 5.1 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 58.0 ppb (45) 0.22 ppb (2) N/A N/A 45.0
 
March 16, 2019, 11 p.m. 5.5 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 60.0 ppb (46) 0.22 ppb (2) N/A N/A 46.0
 
March 16, 2019, 10 p.m. 6.9 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 55.0 ppb (42) 0.23 ppb (3) N/A N/A 42.0
 
March 16, 2019, 9 p.m. 6.7 ppb (6) 1.1 ppb (1) N/A 6.0 ppb (6) N/A N/A 55.0 ppb (42) 0.23 ppb (3) N/A N/A 42.0
 
March 16, 2019, 8 p.m. 8.4 ppb (8) 1.7 ppb (2) N/A 7.0 ppb (6) N/A N/A 52.0 ppb (40) 0.25 ppb (3) N/A N/A 40.0
 
March 16, 2019, 7 p.m. 14.5 ppb (13) 3.2 ppb (3) N/A 11.0 ppb (10) N/A N/A 46.0 ppb (35) 0.32 ppb (4) N/A N/A 35.0
 
March 16, 2019, 6 p.m. 26.6 ppb (25) 7.2 ppb (7) N/A 19.0 ppb (18) N/A N/A 37.0 ppb (28) 0.45 ppb (5) N/A N/A 28.0
 
March 16, 2019, 5 p.m. 51.9 ppb (48) 20.5 ppb (19) N/A 31.0 ppb (29) N/A N/A 25.0 ppb (19) 0.69 ppb (8) N/A N/A 48.0
 
March 16, 2019, 4 p.m. 131.5 ppb (106) 83.2 ppb (81) N/A 48.0 ppb (44) N/A N/A 7.0 ppb (5) 1.5 ppb (17) N/A N/A 106.0
 
March 16, 2019, 3 p.m. 177.8 ppb (115) 132.7 ppb (106) N/A 45.0 ppb (42) N/A N/A 2.0 ppb (2) 1.85 ppb (21) N/A N/A 115.0
 
March 16, 2019, 2 p.m. 171.9 ppb (114) 136.9 ppb (107) N/A 35.0 ppb (32) N/A N/A 1.0 ppb (1) 1.88 ppb (21) N/A N/A 114.0
 
March 16, 2019, 1 p.m. 126.3 ppb (105) 93.6 ppb (92) N/A 33.0 ppb (31) N/A N/A 1.0 ppb (1) 1.64 ppb (18) N/A N/A 105.0
 
March 16, 2019, noon 106.6 ppb (101) 78.2 ppb (76) N/A 28.0 ppb (26) N/A N/A 1.0 ppb (1) 1.65 ppb (18) N/A N/A 101.0
 
March 16, 2019, 11 a.m. 90.3 ppb (89) 58.9 ppb (55) N/A 31.0 ppb (29) N/A N/A 1.0 ppb (1) 1.31 ppb (15) N/A N/A 89.0
 
March 16, 2019, 10 a.m. 79.6 ppb (77) 47.7 ppb (44) N/A 32.0 ppb (30) N/A N/A 1.0 ppb (1) 1.29 ppb (14) N/A N/A 77.0
 
March 16, 2019, 9 a.m. 77.4 ppb (75) 40.6 ppb (38) N/A 37.0 ppb (34) N/A N/A 1.0 ppb (1) 1.08 ppb (12) N/A N/A 75.0
 
March 16, 2019, 8 a.m. 70.4 ppb (67) 31.2 ppb (29) N/A 39.0 ppb (36) N/A N/A 1.0 ppb (1) 0.95 ppb (11) N/A N/A 67.0
 
March 16, 2019, 7 a.m. 42.4 ppb (39) 5.3 ppb (5) N/A 37.0 ppb (34) N/A N/A 3.0 ppb (2) 0.73 ppb (8) N/A N/A 39.0
 
March 16, 2019, 6 a.m. 20.6 ppb (19) 0.7 ppb (1) N/A 20.0 ppb (19) N/A N/A 23.0 ppb (18) 0.41 ppb (5) N/A N/A 19.0
 
March 16, 2019, 5 a.m. 28.4 ppb (26) 1.7 ppb (2) N/A 27.0 ppb (25) N/A N/A 18.0 ppb (14) 0.45 ppb (5) N/A N/A 26.0
 
March 16, 2019, 4 a.m. 29.0 ppb (27) 1.5 ppb (1) N/A 28.0 ppb (26) N/A N/A 19.0 ppb (15) 0.52 ppb (6) N/A N/A 27.0
 
March 16, 2019, 3 a.m. 43.9 ppb (41) 4.0 ppb (4) N/A 40.0 ppb (37) N/A N/A 8.0 ppb (6) 0.7 ppb (8) N/A N/A 41.0
 
March 16, 2019, 2 a.m. 30.3 ppb (28) 2.7 ppb (3) N/A 28.0 ppb (26) N/A N/A 19.0 ppb (15) 0.6 ppb (7) N/A N/A 28.0
 
March 16, 2019, 1 a.m. 8.5 ppb (8) 0.3 ppb (0) N/A 8.0 ppb (7) N/A N/A 42.0 ppb (32) 0.25 ppb (3) N/A N/A 32.0
 
March 16, 2019, midnight 8.5 ppb (8) 1.0 ppb (1) N/A 8.0 ppb (7) N/A N/A 46.0 ppb (35) 0.25 ppb (3) N/A N/A 35.0
 
March 15, 2019, 11 p.m. 8.7 ppb (8) 1.2 ppb (1) N/A 7.0 ppb (6) N/A N/A 50.0 ppb (38) 0.24 ppb (3) N/A N/A 38.0
 
March 15, 2019, 10 p.m. 8.8 ppb (8) 1.7 ppb (2) N/A 7.0 ppb (6) N/A N/A 49.0 ppb (38) 0.24 ppb (3) N/A N/A 38.0
 
March 15, 2019, 9 p.m. 9.3 ppb (9) 2.8 ppb (3) N/A 7.0 ppb (6) N/A N/A 49.0 ppb (38) 0.23 ppb (3) N/A N/A 38.0
 
March 15, 2019, 8 p.m. 9.4 ppb (9) 2.1 ppb (2) N/A 7.0 ppb (6) N/A N/A 46.0 ppb (35) 0.22 ppb (2) N/A N/A 35.0
 
March 15, 2019, 7 p.m. 13.9 ppb (13) 4.4 ppb (4) N/A 9.0 ppb (8) N/A N/A 43.0 ppb (33) 0.27 ppb (3) N/A N/A 33.0
 
March 15, 2019, 6 p.m. 28.4 ppb (26) 9.3 ppb (9) N/A 19.0 ppb (18) N/A N/A 35.0 ppb (27) 0.42 ppb (5) N/A N/A 27.0
 
March 15, 2019, 5 p.m. 30.4 ppb (28) 9.7 ppb (9) N/A 21.0 ppb (19) N/A N/A 29.0 ppb (22) 0.45 ppb (5) N/A N/A 28.0
 
March 15, 2019, 4 p.m. 74.4 ppb (72) 39.1 ppb (36) N/A 35.0 ppb (32) N/A N/A 12.0 ppb (9) 0.85 ppb (9) N/A N/A 72.0
 
March 15, 2019, 3 p.m. 138.7 ppb (107) 98.4 ppb (97) N/A 40.0 ppb (37) N/A N/A 3.0 ppb (2) 1.52 ppb (17) N/A N/A 107.0
 
March 15, 2019, 2 p.m. 152.1 ppb (110) 114.9 ppb (103) N/A 35.0 ppb (32) N/A N/A 1.0 ppb (1) 1.72 ppb (19) N/A N/A 110.0
 
March 15, 2019, 1 p.m. 107.7 ppb (101) 71.8 ppb (69) N/A 36.0 ppb (33) N/A N/A 1.0 ppb (1) 1.2 ppb (13) N/A N/A 101.0
 
March 15, 2019, noon 103.0 ppb (100) 68.1 ppb (65) N/A 35.0 ppb (32) N/A N/A 1.0 ppb (1) 1.2 ppb (13) N/A N/A 100.0
 
March 15, 2019, 11 a.m. 76.2 ppb (74) 43.2 ppb (40) N/A 33.0 ppb (31) N/A N/A 1.0 ppb (1) 0.92 ppb (10) N/A N/A 74.0
 
March 15, 2019, 10 a.m. 57.3 ppb (54) 22.5 ppb (21) N/A 35.0 ppb (32) N/A N/A 1.0 ppb (1) 0.74 ppb (8) N/A N/A 54.0
 
March 15, 2019, 9 a.m. 58.6 ppb (55) 19.5 ppb (18) N/A 39.0 ppb (36) N/A N/A 1.0 ppb (1) 0.73 ppb (8) N/A N/A 55.0
 
March 15, 2019, 8 a.m. 86.8 ppb (85) 45.1 ppb (42) N/A 42.0 ppb (39) N/A N/A 1.0 ppb (1) 1.11 ppb (12) N/A N/A 85.0
 
March 15, 2019, 7 a.m. 71.9 ppb (69) 31.4 ppb (29) N/A 41.0 ppb (38) N/A N/A 1.0 ppb (1) 1.14 ppb (13) N/A N/A 69.0
 
March 15, 2019, 6 a.m. 64.0 ppb (61) 24.4 ppb (23) N/A 40.0 ppb (37) N/A N/A 1.0 ppb (1) 1.13 ppb (13) N/A N/A 61.0
 
March 15, 2019, 5 a.m. 43.9 ppb (41) 4.6 ppb (4) N/A 39.0 ppb (36) N/A N/A 4.0 ppb (3) 0.87 ppb (10) N/A N/A 41.0
 
March 15, 2019, 4 a.m. 30.9 ppb (29) 1.5 ppb (1) N/A 29.0 ppb (27) N/A N/A 16.0 ppb (12) 0.56 ppb (6) N/A N/A 29.0
 
March 15, 2019, 3 a.m. 22.7 ppb (21) 0.7 ppb (1) N/A 22.0 ppb (20) N/A N/A 26.0 ppb (20) 0.46 ppb (5) N/A N/A 21.0
 
March 15, 2019, 2 a.m. 14.7 ppb (14) 0.3 ppb (0) N/A 14.0 ppb (13) N/A N/A 39.0 ppb (30) 0.34 ppb (4) N/A N/A 30.0
 
March 15, 2019, 1 a.m. 8.4 ppb (8) 0.3 ppb (0) N/A 8.0 ppb (7) N/A N/A 49.0 ppb (38) 0.25 ppb (3) N/A N/A 38.0
 
March 15, 2019, midnight 7.4 ppb (7) 0.8 ppb (1) N/A 7.0 ppb (6) N/A N/A 51.0 ppb (39) 0.22 ppb (2) N/A N/A 39.0
 
March 14, 2019, 11 p.m. 8.0 ppb (7) 1.3 ppb (1) N/A 7.0 ppb (6) N/A N/A 50.0 ppb (38) 0.23 ppb (3) N/A N/A 38.0
 
March 14, 2019, 10 p.m. 9.5 ppb (9) 1.9 ppb (2) N/A 8.0 ppb (7) N/A N/A 48.0 ppb (37) 0.23 ppb (3) N/A N/A 37.0
 
March 14, 2019, 9 p.m. 8.3 ppb (8) 2.0 ppb (2) N/A 6.0 ppb (6) N/A N/A 49.0 ppb (38) 0.21 ppb (2) N/A N/A 38.0
 
March 14, 2019, 8 p.m. 7.2 ppb (7) 1.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 47.0 ppb (36) 0.21 ppb (2) N/A N/A 36.0
 
March 14, 2019, 7 p.m. 8.7 ppb (8) 2.1 ppb (2) N/A 7.0 ppb (6) N/A N/A 44.0 ppb (34) 0.25 ppb (3) N/A N/A 34.0
 
March 14, 2019, 6 p.m. 13.1 ppb (12) 3.5 ppb (3) N/A 10.0 ppb (9) N/A N/A 39.0 ppb (30) 0.25 ppb (3) N/A N/A 30.0
 
March 14, 2019, 5 p.m. 20.9 ppb (19) 6.2 ppb (6) N/A 15.0 ppb (14) N/A N/A 32.0 ppb (25) 0.31 ppb (3) N/A N/A 25.0
 
March 14, 2019, 4 p.m. 30.6 ppb (28) 9.7 ppb (9) N/A 21.0 ppb (19) N/A N/A 24.0 ppb (18) 0.41 ppb (5) N/A N/A 28.0
 
March 14, 2019, 3 p.m. 109.5 ppb (102) 73.2 ppb (70) N/A 36.0 ppb (33) N/A N/A 7.0 ppb (5) 1.31 ppb (15) N/A N/A 102.0
 
March 14, 2019, 2 p.m. 127.8 ppb (105) 93.4 ppb (92) N/A 34.0 ppb (31) N/A N/A 1.0 ppb (1) 1.8 ppb (20) N/A N/A 105.0
 
March 14, 2019, 1 p.m. 89.9 ppb (88) 58.8 ppb (55) N/A 31.0 ppb (29) N/A N/A 1.0 ppb (1) 1.24 ppb (14) N/A N/A 88.0
 
March 14, 2019, noon 66.8 ppb (64) 36.6 ppb (34) N/A 30.0 ppb (28) N/A N/A 0.0 ppb (0) 0.88 ppb (10) N/A N/A 64.0
 
March 14, 2019, 11 a.m. 58.5 ppb (55) 26.7 ppb (25) N/A 32.0 ppb (30) N/A N/A 1.0 ppb (1) 0.65 ppb (7) N/A N/A 55.0
 
March 14, 2019, 10 a.m. 61.6 ppb (58) 29.7 ppb (28) N/A 32.0 ppb (30) N/A N/A 1.0 ppb (1) 0.69 ppb (8) N/A N/A 58.0
 
March 14, 2019, 9 a.m. 48.5 ppb (45) 17.8 ppb (16) N/A 31.0 ppb (29) N/A N/A 1.0 ppb (1) 0.69 ppb (8) N/A N/A 45.0
 
March 14, 2019, 8 a.m. 42.1 ppb (39) 10.7 ppb (10) N/A 31.0 ppb (29) N/A N/A 1.0 ppb (1) 0.64 ppb (7) N/A N/A 39.0
 
March 14, 2019, 7 a.m. 34.7 ppb (32) 2.9 ppb (3) N/A 32.0 ppb (30) N/A N/A 5.0 ppb (4) 0.54 ppb (6) N/A N/A 32.0
 
March 14, 2019, 6 a.m. 25.2 ppb (23) 1.1 ppb (1) N/A 24.0 ppb (22) N/A N/A 16.0 ppb (12) 0.43 ppb (5) N/A N/A 23.0
 
March 14, 2019, 5 a.m. 26.9 ppb (25) 2.3 ppb (2) N/A 25.0 ppb (23) N/A N/A 17.0 ppb (13) 0.42 ppb (5) N/A N/A 25.0
 
March 14, 2019, 4 a.m. 31.3 ppb (29) 1.9 ppb (2) N/A 29.0 ppb (27) N/A N/A 13.0 ppb (10) 0.48 ppb (5) N/A N/A 29.0
 
March 14, 2019, 3 a.m. 20.0 ppb (19) 0.8 ppb (1) N/A 19.0 ppb (18) N/A N/A 22.0 ppb (17) 0.37 ppb (4) N/A N/A 19.0
 
March 14, 2019, 2 a.m. 9.0 ppb (8) 0.3 ppb (0) N/A 9.0 ppb (8) N/A N/A 36.0 ppb (28) 0.23 ppb (3) N/A N/A 28.0
 
March 14, 2019, 1 a.m. 6.1 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 41.0 ppb (32) 0.21 ppb (2) N/A N/A 32.0
 
March 14, 2019, midnight 5.6 ppb (5) 0.8 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