AQSQID: 060710026

Site Name: Ontario Near Road

Location: San Bernardino Co, CA

Reporting: True, Located: True

Current AQI: 9.0

San Bernardino Co CA, US: 34.068114, -117.525796

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 22, 2019, 7 p.m. 9.8 ppb (9) 2.3 ppb (2) N/A 7.0 ppb (6) N/A N/A N/A 0.18 ppb (2) N/A N/A 9.0
 
Sept. 22, 2019, 6 p.m. 15.7 ppb (15) 4.0 ppb (4) N/A 12.0 ppb (11) N/A N/A N/A 0.21 ppb (2) N/A N/A 15.0
 
Sept. 22, 2019, 5 p.m. 17.4 ppb (16) 4.2 ppb (4) N/A 13.0 ppb (12) N/A N/A N/A 0.25 ppb (3) N/A N/A 16.0
 
Sept. 22, 2019, 4 p.m. 22.9 ppb (21) 5.5 ppb (5) N/A 17.0 ppb (16) N/A N/A N/A 0.32 ppb (4) N/A N/A 21.0
 
Sept. 22, 2019, 3 p.m. 28.1 ppb (26) 6.8 ppb (6) N/A 21.0 ppb (19) N/A N/A N/A 0.29 ppb (3) N/A N/A 26.0
 
Sept. 22, 2019, 2 p.m. 40.7 ppb (38) 11.9 ppb (11) N/A 29.0 ppb (27) N/A N/A N/A 0.39 ppb (4) N/A N/A 38.0
 
Sept. 22, 2019, 1 p.m. 35.4 ppb (33) 3.0 ppb (3) N/A 32.0 ppb (30) N/A N/A N/A 0.32 ppb (4) N/A N/A 33.0
 
Sept. 22, 2019, noon 30.6 ppb (28) 2.4 ppb (2) N/A 28.0 ppb (26) N/A N/A N/A 0.26 ppb (3) N/A N/A 28.0
 
Sept. 22, 2019, 11 a.m. 44.6 ppb (41) 7.2 ppb (7) N/A 37.0 ppb (34) N/A N/A N/A 0.32 ppb (4) N/A N/A 41.0
 
Sept. 22, 2019, 10 a.m. 41.3 ppb (38) 6.0 ppb (6) N/A 35.0 ppb (32) N/A N/A N/A 0.35 ppb (4) N/A N/A 38.0
 
Sept. 22, 2019, 9 a.m. 31.9 ppb (30) 1.9 ppb (2) N/A 30.0 ppb (28) N/A N/A N/A 0.59 ppb (7) N/A N/A 30.0
 
Sept. 22, 2019, 8 a.m. 34.8 ppb (32) 2.1 ppb (2) N/A 33.0 ppb (31) N/A N/A N/A 0.59 ppb (7) N/A N/A 32.0
 
Sept. 22, 2019, 7 a.m. 44.8 ppb (41) 5.1 ppb (5) N/A 40.0 ppb (37) N/A N/A N/A 0.57 ppb (6) N/A N/A 41.0
 
Sept. 22, 2019, 6 a.m. 39.7 ppb (37) 2.4 ppb (2) N/A 37.0 ppb (34) N/A N/A N/A 0.46 ppb (5) N/A N/A 37.0
 
Sept. 22, 2019, 5 a.m. 32.4 ppb (30) 2.3 ppb (2) N/A 30.0 ppb (28) N/A N/A N/A 0.4 ppb (4) N/A N/A 30.0
 
Sept. 22, 2019, 4 a.m. 52.6 ppb (49) 10.5 ppb (10) N/A 42.0 ppb (39) N/A N/A N/A 0.55 ppb (6) N/A N/A 49.0
 
Sept. 22, 2019, 3 a.m. 45.0 ppb (42) 7.2 ppb (7) N/A 38.0 ppb (35) N/A N/A N/A 0.54 ppb (6) N/A N/A 42.0
 
Sept. 22, 2019, 2 a.m. 39.9 ppb (37) 4.5 ppb (4) N/A 35.0 ppb (32) N/A N/A N/A 0.52 ppb (6) N/A N/A 37.0
 
Sept. 22, 2019, 1 a.m. 32.7 ppb (30) 2.7 ppb (3) N/A 30.0 ppb (28) N/A N/A N/A 0.51 ppb (6) N/A N/A 30.0
 
Sept. 22, 2019, midnight 26.9 ppb (25) 2.8 ppb (3) N/A 24.0 ppb (22) N/A N/A N/A 0.48 ppb (5) N/A N/A 25.0
 
Sept. 21, 2019, 11 p.m. 20.4 ppb (19) 3.7 ppb (3) N/A 17.0 ppb (16) N/A N/A N/A 0.32 ppb (4) N/A N/A 19.0
 
Sept. 21, 2019, 10 p.m. 19.7 ppb (18) 4.7 ppb (4) N/A 15.0 ppb (14) N/A N/A N/A 0.27 ppb (3) N/A N/A 18.0
 
Sept. 21, 2019, 9 p.m. 18.9 ppb (18) 4.2 ppb (4) N/A 15.0 ppb (14) N/A N/A N/A 0.27 ppb (3) N/A N/A 18.0
 
Sept. 21, 2019, 8 p.m. 23.1 ppb (21) 6.6 ppb (6) N/A 17.0 ppb (16) N/A N/A N/A 0.27 ppb (3) N/A N/A 21.0
 
Sept. 21, 2019, 7 p.m. 33.3 ppb (31) 9.1 ppb (8) N/A 24.0 ppb (22) N/A N/A N/A 0.35 ppb (4) N/A N/A 31.0
 
Sept. 21, 2019, 6 p.m. 35.7 ppb (33) 10.2 ppb (9) N/A 26.0 ppb (24) N/A N/A N/A 0.41 ppb (5) N/A N/A 33.0
 
Sept. 21, 2019, 5 p.m. 42.8 ppb (40) 15.0 ppb (14) N/A 28.0 ppb (26) N/A N/A N/A 0.42 ppb (5) N/A N/A 40.0
 
Sept. 21, 2019, 4 p.m. 54.7 ppb (51) 23.3 ppb (22) N/A 31.0 ppb (29) N/A N/A N/A 0.47 ppb (5) N/A N/A 51.0
 
Sept. 21, 2019, 3 p.m. 100.1 ppb (99) 60.1 ppb (56) N/A 40.0 ppb (37) N/A N/A N/A 0.65 ppb (7) N/A N/A 99.0
 
Sept. 21, 2019, 2 p.m. 75.5 ppb (73) 44.1 ppb (41) N/A 31.0 ppb (29) N/A N/A N/A 0.59 ppb (7) N/A N/A 73.0
 
Sept. 21, 2019, 1 p.m. 65.5 ppb (62) 32.7 ppb (30) N/A 33.0 ppb (31) N/A N/A N/A 0.57 ppb (6) N/A N/A 62.0
 
Sept. 21, 2019, noon 46.5 ppb (43) 15.3 ppb (14) N/A 31.0 ppb (29) N/A N/A N/A 0.45 ppb (5) N/A N/A 43.0
 
Sept. 21, 2019, 11 a.m. 59.5 ppb (56) 27.8 ppb (26) N/A 32.0 ppb (30) N/A N/A N/A 0.54 ppb (6) N/A N/A 56.0
 
Sept. 21, 2019, 10 a.m. 70.9 ppb (68) 38.6 ppb (36) N/A 32.0 ppb (30) N/A N/A N/A 0.56 ppb (6) N/A N/A 68.0
 
Sept. 21, 2019, 9 a.m. 72.6 ppb (70) 36.2 ppb (34) N/A 36.0 ppb (33) N/A N/A N/A 0.56 ppb (6) N/A N/A 70.0
 
Sept. 21, 2019, 8 a.m. 34.8 ppb (32) 4.6 ppb (4) N/A 30.0 ppb (28) N/A N/A N/A 0.44 ppb (5) N/A N/A 32.0
 
Sept. 21, 2019, 7 a.m. 33.0 ppb (31) 4.1 ppb (4) N/A 29.0 ppb (27) N/A N/A N/A 0.41 ppb (5) N/A N/A 31.0
 
Sept. 21, 2019, 6 a.m. 33.7 ppb (31) 5.9 ppb (5) N/A 28.0 ppb (26) N/A N/A N/A 0.37 ppb (4) N/A N/A 31.0
 
Sept. 21, 2019, 5 a.m. 55.4 ppb (51) 18.2 ppb (17) N/A 37.0 ppb (34) N/A N/A N/A 0.47 ppb (5) N/A N/A 51.0
 
Sept. 21, 2019, 4 a.m. 55.7 ppb (52) 18.6 ppb (17) N/A 37.0 ppb (34) N/A N/A N/A 0.47 ppb (5) N/A N/A 52.0
 
Sept. 21, 2019, 3 a.m. 55.8 ppb (52) 18.4 ppb (17) N/A 37.0 ppb (34) N/A N/A N/A 0.44 ppb (5) N/A N/A 52.0
 
Sept. 21, 2019, 2 a.m. 36.7 ppb (34) 7.7 ppb (7) N/A 29.0 ppb (27) N/A N/A N/A 0.34 ppb (4) N/A N/A 34.0
 
Sept. 21, 2019, 1 a.m. 45.5 ppb (42) 13.0 ppb (12) N/A 32.0 ppb (30) N/A N/A N/A 0.38 ppb (4) N/A N/A 42.0
 
Sept. 21, 2019, midnight 34.3 ppb (32) 8.5 ppb (8) N/A 26.0 ppb (24) N/A N/A N/A 0.33 ppb (4) N/A N/A 32.0
 
Sept. 20, 2019, 11 p.m. 38.9 ppb (36) 10.7 ppb (10) N/A 28.0 ppb (26) N/A N/A N/A 0.33 ppb (4) N/A N/A 36.0
 
Sept. 20, 2019, 10 p.m. 34.8 ppb (32) 9.4 ppb (9) N/A 25.0 ppb (23) N/A N/A N/A 0.34 ppb (4) N/A N/A 32.0
 
Sept. 20, 2019, 9 p.m. 28.5 ppb (26) 8.2 ppb (8) N/A 20.0 ppb (19) N/A N/A N/A 0.24 ppb (3) N/A N/A 26.0
 
Sept. 20, 2019, 8 p.m. 41.4 ppb (38) 15.7 ppb (15) N/A 26.0 ppb (24) N/A N/A N/A 0.29 ppb (3) N/A N/A 38.0
 
Sept. 20, 2019, 7 p.m. 44.9 ppb (42) 18.5 ppb (17) N/A 26.0 ppb (24) N/A N/A N/A 0.29 ppb (3) N/A N/A 42.0
 
Sept. 20, 2019, 6 p.m. 42.7 ppb (40) 19.7 ppb (18) N/A 23.0 ppb (21) N/A N/A N/A 0.29 ppb (3) N/A N/A 40.0
 
Sept. 20, 2019, 5 p.m. 40.1 ppb (37) 19.9 ppb (18) N/A 20.0 ppb (19) N/A N/A N/A 0.27 ppb (3) N/A N/A 37.0
 
Sept. 20, 2019, 4 p.m. 41.5 ppb (38) 21.5 ppb (20) N/A 20.0 ppb (19) N/A N/A N/A 0.26 ppb (3) N/A N/A 38.0
 
Sept. 19, 2019, 4 p.m. 42.2 ppb (39) 21.5 ppb (20) N/A 21.0 ppb (19) N/A N/A N/A 0.27 ppb (3) N/A N/A 39.0
 
Sept. 19, 2019, 3 p.m. 61.8 ppb (58) 35.2 ppb (33) N/A 27.0 ppb (25) N/A N/A N/A 0.33 ppb (4) N/A N/A 58.0
 
Sept. 19, 2019, 2 p.m. 39.1 ppb (36) 17.4 ppb (16) N/A 22.0 ppb (20) N/A N/A N/A 0.28 ppb (3) N/A N/A 36.0
 
Sept. 19, 2019, 1 p.m. 54.0 ppb (50) 24.1 ppb (22) N/A 30.0 ppb (28) N/A N/A N/A 0.34 ppb (4) N/A N/A 50.0
 
Sept. 19, 2019, noon 58.5 ppb (55) 28.4 ppb (26) N/A 30.0 ppb (28) N/A N/A N/A 0.33 ppb (4) N/A N/A 55.0
 
Sept. 19, 2019, 11 a.m. 81.0 ppb (79) 48.6 ppb (45) N/A 32.0 ppb (30) N/A N/A N/A 0.41 ppb (5) N/A N/A 79.0
 
Sept. 19, 2019, 10 a.m. 56.8 ppb (53) 26.3 ppb (24) N/A 31.0 ppb (29) N/A N/A N/A 0.37 ppb (4) N/A N/A 53.0
 
Sept. 19, 2019, 9 a.m. 44.2 ppb (41) 13.0 ppb (12) N/A 31.0 ppb (29) N/A N/A N/A 0.28 ppb (3) N/A N/A 41.0
 
Sept. 19, 2019, 8 a.m. 70.1 ppb (67) 35.2 ppb (33) N/A 35.0 ppb (32) N/A N/A N/A 0.4 ppb (4) N/A N/A 67.0
 
Sept. 19, 2019, 7 a.m. 63.9 ppb (61) 29.2 ppb (27) N/A 35.0 ppb (32) N/A N/A N/A 0.36 ppb (4) N/A N/A 61.0
 
Sept. 19, 2019, 6 a.m. 53.5 ppb (50) 20.6 ppb (19) N/A 33.0 ppb (31) N/A N/A N/A 0.34 ppb (4) N/A N/A 50.0
 
Sept. 19, 2019, 5 a.m. 63.9 ppb (61) 27.0 ppb (25) N/A 37.0 ppb (34) N/A N/A N/A 0.39 ppb (4) N/A N/A 61.0
 
Sept. 19, 2019, 4 a.m. 54.7 ppb (51) 22.3 ppb (21) N/A 32.0 ppb (30) N/A N/A N/A 0.38 ppb (4) N/A N/A 51.0
 
Sept. 19, 2019, 3 a.m. 49.9 ppb (46) 22.3 ppb (21) N/A 28.0 ppb (26) N/A N/A N/A 0.33 ppb (4) N/A N/A 46.0
 
Sept. 19, 2019, 2 a.m. 49.4 ppb (46) 20.9 ppb (19) N/A 29.0 ppb (27) N/A N/A N/A 0.32 ppb (4) N/A N/A 46.0
 
Sept. 19, 2019, 1 a.m. 43.5 ppb (40) 16.3 ppb (15) N/A 27.0 ppb (25) N/A N/A N/A 0.31 ppb (3) N/A N/A 40.0
 
Sept. 19, 2019, midnight 34.7 ppb (32) 9.6 ppb (9) N/A 25.0 ppb (23) N/A N/A N/A 0.29 ppb (3) N/A N/A 32.0
 
Sept. 18, 2019, 11 p.m. 25.3 ppb (23) 5.9 ppb (5) N/A 19.0 ppb (18) N/A N/A N/A 0.26 ppb (3) N/A N/A 23.0
 
Sept. 18, 2019, 10 p.m. 33.8 ppb (31) 9.9 ppb (9) N/A 24.0 ppb (22) N/A N/A N/A 0.29 ppb (3) N/A N/A 31.0
 
Sept. 18, 2019, 9 p.m. 35.3 ppb (33) 9.9 ppb (9) N/A 25.0 ppb (23) N/A N/A N/A 0.29 ppb (3) N/A N/A 33.0
 
Sept. 18, 2019, 8 p.m. 29.7 ppb (28) 9.3 ppb (9) N/A 20.0 ppb (19) N/A N/A N/A 0.23 ppb (3) N/A N/A 28.0
 
Sept. 18, 2019, 7 p.m. 36.8 ppb (34) 14.2 ppb (13) N/A 23.0 ppb (21) N/A N/A N/A 0.24 ppb (3) N/A N/A 34.0
 
Sept. 18, 2019, 6 p.m. 49.1 ppb (45) 19.9 ppb (18) N/A 29.0 ppb (27) N/A N/A N/A 0.3 ppb (3) N/A N/A 45.0
 
Sept. 18, 2019, 5 p.m. 77.3 ppb (75) 37.6 ppb (35) N/A 40.0 ppb (37) N/A N/A N/A 0.42 ppb (5) N/A N/A 75.0
 
Sept. 18, 2019, 4 p.m. 80.4 ppb (78) 43.8 ppb (41) N/A 37.0 ppb (34) N/A N/A N/A 0.47 ppb (5) N/A N/A 78.0
 
Sept. 18, 2019, 3 p.m. 90.5 ppb (89) 58.5 ppb (55) N/A 32.0 ppb (30) N/A N/A N/A 0.53 ppb (6) N/A N/A 89.0
 
Sept. 18, 2019, 2 p.m. 93.8 ppb (92) 63.5 ppb (60) N/A 30.0 ppb (28) N/A N/A N/A 0.6 ppb (7) N/A N/A 92.0
 
Sept. 18, 2019, 1 p.m. 116.6 ppb (103) 81.2 ppb (79) N/A 35.0 ppb (32) N/A N/A N/A 0.65 ppb (7) N/A N/A 103.0
 
Sept. 18, 2019, noon 135.4 ppb (107) 96.3 ppb (95) N/A 39.0 ppb (36) N/A N/A N/A 0.7 ppb (8) N/A N/A 107.0
 
Sept. 18, 2019, 11 a.m. 88.5 ppb (87) 51.8 ppb (48) N/A 37.0 ppb (34) N/A N/A N/A 0.45 ppb (5) N/A N/A 87.0
 
Sept. 18, 2019, 10 a.m. 90.6 ppb (89) 50.7 ppb (47) N/A 40.0 ppb (37) N/A N/A N/A 0.41 ppb (5) N/A N/A 89.0
 
Sept. 18, 2019, 9 a.m. 72.5 ppb (70) 34.8 ppb (32) N/A 38.0 ppb (35) N/A N/A N/A 0.43 ppb (5) N/A N/A 70.0
 
Sept. 18, 2019, 8 a.m. 75.6 ppb (73) 30.6 ppb (28) N/A 45.0 ppb (42) N/A N/A N/A 0.39 ppb (4) N/A N/A 73.0
 
Sept. 18, 2019, 7 a.m. 77.1 ppb (75) 31.6 ppb (29) N/A 45.0 ppb (42) N/A N/A N/A 0.41 ppb (5) N/A N/A 75.0
 
Sept. 18, 2019, 6 a.m. 62.9 ppb (59) 20.8 ppb (19) N/A 42.0 ppb (39) N/A N/A N/A 0.4 ppb (4) N/A N/A 59.0
 
Sept. 18, 2019, 5 a.m. 61.2 ppb (58) 18.6 ppb (17) N/A 43.0 ppb (40) N/A N/A N/A 0.41 ppb (5) N/A N/A 58.0
 
Sept. 18, 2019, 4 a.m. 63.7 ppb (60) 21.3 ppb (20) N/A 42.0 ppb (39) N/A N/A N/A 0.41 ppb (5) N/A N/A 60.0
 
Sept. 18, 2019, 3 a.m. 49.7 ppb (46) 19.6 ppb (18) N/A 30.0 ppb (28) N/A N/A N/A 0.34 ppb (4) N/A N/A 46.0
 
Sept. 18, 2019, 2 a.m. 45.7 ppb (42) 19.4 ppb (18) N/A 26.0 ppb (24) N/A N/A N/A 0.33 ppb (4) N/A N/A 42.0
 
Sept. 18, 2019, midnight 38.9 ppb (36) 14.4 ppb (13) N/A 24.0 ppb (22) N/A N/A N/A 0.29 ppb (3) N/A N/A 36.0
 
Sept. 17, 2019, 11 p.m. 24.3 ppb (23) 5.7 ppb (5) N/A 19.0 ppb (18) N/A N/A N/A 0.24 ppb (3) N/A N/A 23.0
 
Sept. 17, 2019, 10 p.m. 28.3 ppb (26) 8.7 ppb (8) N/A 20.0 ppb (19) N/A N/A N/A 0.23 ppb (3) N/A N/A 26.0
 
Sept. 17, 2019, 9 p.m. 36.4 ppb (34) 13.3 ppb (12) N/A 23.0 ppb (21) N/A N/A N/A 0.24 ppb (3) N/A N/A 34.0
 
Sept. 17, 2019, 8 p.m. 28.7 ppb (27) 10.7 ppb (10) N/A 18.0 ppb (17) N/A N/A N/A 0.2 ppb (2) N/A N/A 27.0
 
Sept. 17, 2019, 7 p.m. 40.4 ppb (37) 17.2 ppb (16) N/A 23.0 ppb (21) N/A N/A N/A 0.21 ppb (2) N/A N/A 37.0
 
Sept. 17, 2019, 6 p.m. 51.5 ppb (48) 24.5 ppb (23) N/A 27.0 ppb (25) N/A N/A N/A 0.25 ppb (3) N/A N/A 48.0
 
Sept. 17, 2019, 5 p.m. 50.3 ppb (47) 24.6 ppb (23) N/A 26.0 ppb (24) N/A N/A N/A 0.26 ppb (3) N/A N/A 47.0
 
Sept. 17, 2019, 4 p.m. 100.2 ppb (99) 59.4 ppb (56) N/A 41.0 ppb (38) N/A N/A N/A 0.48 ppb (5) N/A N/A 99.0
 
Sept. 17, 2019, 3 p.m. 121.0 ppb (104) 82.3 ppb (80) N/A 39.0 ppb (36) N/A N/A N/A 0.64 ppb (7) N/A N/A 104.0
 
Sept. 17, 2019, 2 p.m. 125.3 ppb (105) 92.3 ppb (91) N/A 33.0 ppb (31) N/A N/A N/A 0.63 ppb (7) N/A N/A 105.0
 
Sept. 17, 2019, 1 p.m. 95.6 ppb (94) 61.6 ppb (58) N/A 34.0 ppb (31) N/A N/A N/A 0.51 ppb (6) N/A N/A 94.0
 
Sept. 17, 2019, noon 111.1 ppb (102) 72.3 ppb (69) N/A 39.0 ppb (36) N/A N/A N/A 0.5 ppb (6) N/A N/A 102.0
 
Sept. 17, 2019, 11 a.m. 99.3 ppb (98) 59.6 ppb (56) N/A 40.0 ppb (37) N/A N/A N/A 0.44 ppb (5) N/A N/A 98.0
 
Sept. 17, 2019, 10 a.m. 84.1 ppb (82) 48.0 ppb (44) N/A 36.0 ppb (33) N/A N/A N/A 0.43 ppb (5) N/A N/A 82.0
 
Sept. 17, 2019, 9 a.m. 35.3 ppb (33) 8.3 ppb (8) N/A 27.0 ppb (25) N/A N/A N/A 0.27 ppb (3) N/A N/A 33.0
 
Sept. 17, 2019, 8 a.m. 38.3 ppb (35) 10.7 ppb (10) N/A 28.0 ppb (26) N/A N/A N/A 0.29 ppb (3) N/A N/A 35.0
 
Sept. 17, 2019, 7 a.m. 48.6 ppb (45) 18.0 ppb (17) N/A 31.0 ppb (29) N/A N/A N/A 0.32 ppb (4) N/A N/A 45.0
 
Sept. 17, 2019, 6 a.m. 33.7 ppb (31) 10.4 ppb (10) N/A 23.0 ppb (21) N/A N/A N/A 0.27 ppb (3) N/A N/A 31.0
 
Sept. 17, 2019, 5 a.m. 15.7 ppb (15) 1.4 ppb (1) N/A 14.0 ppb (13) N/A N/A N/A 0.21 ppb (2) N/A N/A 15.0
 
Sept. 17, 2019, 4 a.m. 25.7 ppb (24) 3.7 ppb (3) N/A 22.0 ppb (20) N/A N/A N/A 0.22 ppb (2) N/A N/A 24.0
 
Sept. 17, 2019, 3 a.m. 55.9 ppb (52) 19.3 ppb (18) N/A 37.0 ppb (34) N/A N/A N/A 0.33 ppb (4) N/A N/A 52.0
 
Sept. 17, 2019, 2 a.m. 48.2 ppb (45) 18.4 ppb (17) N/A 30.0 ppb (28) N/A N/A N/A 0.3 ppb (3) N/A N/A 45.0
 
Sept. 17, 2019, 1 a.m. 43.7 ppb (40) 17.2 ppb (16) N/A 26.0 ppb (24) N/A N/A N/A 0.3 ppb (3) N/A N/A 40.0
 
Sept. 17, 2019, midnight 37.4 ppb (35) 14.6 ppb (14) N/A 23.0 ppb (21) N/A N/A N/A 0.29 ppb (3) N/A N/A 35.0
 
Sept. 16, 2019, 11 p.m. 38.4 ppb (36) 13.8 ppb (13) N/A 25.0 ppb (23) N/A N/A N/A 0.27 ppb (3) N/A N/A 36.0
 
Sept. 16, 2019, 10 p.m. 38.4 ppb (36) 13.2 ppb (12) N/A 25.0 ppb (23) N/A N/A N/A 0.24 ppb (3) N/A N/A 36.0
 
Sept. 16, 2019, 9 p.m. 42.2 ppb (39) 15.7 ppb (15) N/A 26.0 ppb (24) N/A N/A N/A 0.26 ppb (3) N/A N/A 39.0
 
Sept. 16, 2019, 8 p.m. 41.5 ppb (38) 13.9 ppb (13) N/A 28.0 ppb (26) N/A N/A N/A 0.31 ppb (3) N/A N/A 38.0
 
Sept. 16, 2019, 7 p.m. 53.1 ppb (49) 18.2 ppb (17) N/A 35.0 ppb (32) N/A N/A N/A 0.33 ppb (4) N/A N/A 49.0
 
Sept. 16, 2019, 6 p.m. 59.5 ppb (56) 21.5 ppb (20) N/A 38.0 ppb (35) N/A N/A N/A 0.36 ppb (4) N/A N/A 56.0
 
Sept. 16, 2019, 5 p.m. 69.0 ppb (66) 28.9 ppb (27) N/A 40.0 ppb (37) N/A N/A N/A 0.4 ppb (4) N/A N/A 66.0
 
Sept. 16, 2019, 4 p.m. 109.0 ppb (102) 58.3 ppb (55) N/A 51.0 ppb (47) N/A N/A N/A 0.62 ppb (7) N/A N/A 102.0
 
Sept. 16, 2019, 3 p.m. 136.5 ppb (107) 89.1 ppb (87) N/A 47.0 ppb (44) N/A N/A N/A 0.79 ppb (9) N/A N/A 107.0
 
Sept. 16, 2019, 2 p.m. 118.4 ppb (103) 82.3 ppb (80) N/A 36.0 ppb (33) N/A N/A N/A 0.82 ppb (9) N/A N/A 103.0
 
Sept. 16, 2019, 1 p.m. 114.2 ppb (103) 78.1 ppb (76) N/A 36.0 ppb (33) N/A N/A N/A 0.66 ppb (7) N/A N/A 103.0
 
Sept. 16, 2019, noon 111.2 ppb (102) 73.3 ppb (71) N/A 38.0 ppb (35) N/A N/A N/A 0.64 ppb (7) N/A N/A 102.0
 
Sept. 16, 2019, 11 a.m. 85.4 ppb (83) 51.1 ppb (47) N/A 34.0 ppb (31) N/A N/A N/A 0.55 ppb (6) N/A N/A 83.0
 
Sept. 16, 2019, 10 a.m. 69.9 ppb (67) 36.0 ppb (33) N/A 34.0 ppb (31) N/A N/A N/A 0.52 ppb (6) N/A N/A 67.0
 
Sept. 16, 2019, 9 a.m. 55.6 ppb (52) 22.8 ppb (21) N/A 33.0 ppb (31) N/A N/A N/A 0.39 ppb (4) N/A N/A 52.0
 
Sept. 16, 2019, 8 a.m. 60.7 ppb (57) 19.5 ppb (18) N/A 41.0 ppb (38) N/A N/A N/A 0.42 ppb (5) N/A N/A 57.0
 
Sept. 16, 2019, 7 a.m. 58.2 ppb (54) 10.1 ppb (9) N/A 48.0 ppb (44) N/A N/A N/A 0.41 ppb (5) N/A N/A 54.0
 
Sept. 16, 2019, 6 a.m. 55.9 ppb (52) 14.7 ppb (14) N/A 41.0 ppb (38) N/A N/A N/A 0.44 ppb (5) N/A N/A 52.0
 
Sept. 16, 2019, 5 a.m. 31.2 ppb (29) 2.0 ppb (2) N/A 29.0 ppb (27) N/A N/A N/A 0.37 ppb (4) N/A N/A 29.0
 
Sept. 16, 2019, 4 a.m. 25.4 ppb (24) 0.9 ppb (1) N/A 24.0 ppb (22) N/A N/A N/A 0.28 ppb (3) N/A N/A 24.0
 
Sept. 16, 2019, 3 a.m. 38.1 ppb (35) 10.0 ppb (9) N/A 28.0 ppb (26) N/A N/A N/A 0.36 ppb (4) N/A N/A 35.0
 
Sept. 16, 2019, 2 a.m. 30.2 ppb (28) 7.2 ppb (7) N/A 23.0 ppb (21) N/A N/A N/A 0.37 ppb (4) N/A N/A 28.0
 
Sept. 16, 2019, 1 a.m. 30.3 ppb (28) 7.0 ppb (6) N/A 23.0 ppb (21) N/A N/A N/A 0.38 ppb (4) N/A N/A 28.0
 
Sept. 16, 2019, midnight 26.6 ppb (25) 4.8 ppb (4) N/A 22.0 ppb (20) N/A N/A N/A 0.35 ppb (4) N/A N/A 25.0
 
Sept. 15, 2019, 11 p.m. 24.7 ppb (23) 4.7 ppb (4) N/A 20.0 ppb (19) N/A N/A N/A 0.32 ppb (4) N/A N/A 23.0
 
Sept. 15, 2019, 10 p.m. 19.9 ppb (18) 4.2 ppb (4) N/A 16.0 ppb (15) N/A N/A N/A 0.33 ppb (4) N/A N/A 18.0
 
Sept. 15, 2019, 9 p.m. 22.9 ppb (21) 5.5 ppb (5) N/A 17.0 ppb (16) N/A N/A N/A 0.33 ppb (4) N/A N/A 21.0
 
Sept. 15, 2019, 8 p.m. 14.3 ppb (13) 3.3 ppb (3) N/A 11.0 ppb (10) N/A N/A N/A 0.24 ppb (3) N/A N/A 13.0
 
Sept. 15, 2019, 7 p.m. 16.8 ppb (16) 4.4 ppb (4) N/A 12.0 ppb (11) N/A N/A N/A 0.24 ppb (3) N/A N/A 16.0
 
Sept. 15, 2019, 6 p.m. 18.6 ppb (17) 3.8 ppb (4) N/A 15.0 ppb (14) N/A N/A N/A 0.29 ppb (3) N/A N/A 17.0
 
Sept. 15, 2019, 5 p.m. 29.7 ppb (28) 5.5 ppb (5) N/A 24.0 ppb (22) N/A N/A N/A 0.41 ppb (5) N/A N/A 28.0
 
Sept. 15, 2019, 4 p.m. 48.9 ppb (45) 13.4 ppb (12) N/A 35.0 ppb (32) N/A N/A N/A 0.52 ppb (6) N/A N/A 45.0
 
Sept. 15, 2019, 3 p.m. 71.5 ppb (69) 28.7 ppb (27) N/A 43.0 ppb (40) N/A N/A N/A 0.63 ppb (7) N/A N/A 69.0
 
Sept. 14, 2019, 5 p.m. 55.5 ppb (52) 14.7 ppb (14) N/A 41.0 ppb (38) N/A N/A N/A 0.46 ppb (5) N/A N/A 52.0
 
Sept. 14, 2019, 4 p.m. 89.9 ppb (88) 37.2 ppb (34) N/A 53.0 ppb (49) N/A N/A N/A 0.58 ppb (6) N/A N/A 88.0
 
Sept. 14, 2019, 3 p.m. 112.9 ppb (102) 58.8 ppb (55) N/A 54.0 ppb (50) N/A N/A N/A 0.65 ppb (7) N/A N/A 102.0
 
Sept. 14, 2019, 2 p.m. 79.7 ppb (77) 34.9 ppb (32) N/A 45.0 ppb (42) N/A N/A N/A 0.58 ppb (6) N/A N/A 77.0
 
Sept. 14, 2019, 1 p.m. 68.4 ppb (65) 21.7 ppb (20) N/A 47.0 ppb (44) N/A N/A N/A 0.48 ppb (5) N/A N/A 65.0
 
Sept. 14, 2019, noon 58.3 ppb (55) 14.3 ppb (13) N/A 44.0 ppb (41) N/A N/A N/A 0.41 ppb (5) N/A N/A 55.0
 
Sept. 14, 2019, 11 a.m. 51.8 ppb (48) 12.4 ppb (11) N/A 39.0 ppb (36) N/A N/A N/A 0.44 ppb (5) N/A N/A 48.0
 
Sept. 14, 2019, 10 a.m. 41.4 ppb (38) 5.6 ppb (5) N/A 36.0 ppb (33) N/A N/A N/A 0.45 ppb (5) N/A N/A 38.0
 
Sept. 14, 2019, 9 a.m. 58.7 ppb (55) 14.4 ppb (13) N/A 44.0 ppb (41) N/A N/A N/A 0.54 ppb (6) N/A N/A 55.0
 
Sept. 14, 2019, 8 a.m. 68.5 ppb (65) 23.1 ppb (21) N/A 45.0 ppb (42) N/A N/A N/A 0.64 ppb (7) N/A N/A 65.0
 
Sept. 14, 2019, 7 a.m. 59.4 ppb (56) 11.2 ppb (10) N/A 48.0 ppb (44) N/A N/A N/A 0.63 ppb (7) N/A N/A 56.0
 
Sept. 14, 2019, 6 a.m. 131.4 ppb (106) 77.3 ppb (75) N/A 54.0 ppb (50) N/A N/A N/A 0.65 ppb (7) N/A N/A 106.0
 
Sept. 14, 2019, 5 a.m. 54.8 ppb (51) 7.5 ppb (7) N/A 47.0 ppb (44) N/A N/A N/A 0.56 ppb (6) N/A N/A 51.0
 
Sept. 14, 2019, 4 a.m. 69.3 ppb (66) 16.2 ppb (15) N/A 53.0 ppb (49) N/A N/A N/A 0.59 ppb (7) N/A N/A 66.0
 
Sept. 14, 2019, 3 a.m. 68.9 ppb (66) 17.7 ppb (16) N/A 51.0 ppb (47) N/A N/A N/A 0.51 ppb (6) N/A N/A 66.0
 
Sept. 14, 2019, 2 a.m. 66.6 ppb (63) 15.6 ppb (14) N/A 51.0 ppb (47) N/A N/A N/A 0.5 ppb (6) N/A N/A 63.0
 
Sept. 14, 2019, 1 a.m. 32.4 ppb (30) 3.5 ppb (3) N/A 29.0 ppb (27) N/A N/A N/A 0.36 ppb (4) N/A N/A 30.0
 
Sept. 14, 2019, midnight 42.7 ppb (40) 6.2 ppb (6) N/A 36.0 ppb (33) N/A N/A N/A 0.38 ppb (4) N/A N/A 40.0
 
Sept. 13, 2019, 11 p.m. 46.3 ppb (43) 7.2 ppb (7) N/A 39.0 ppb (36) N/A N/A N/A 0.42 ppb (5) N/A N/A 43.0