AQSQID: 060710026

Site Name: Ontario Near Road

Location: San Bernardino Co, CA

Reporting: True, Located: True

Current AQI: 49.0

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
March 23, 2019, 5 a.m. 53.2 ppb (49) 16.5 ppb (15) N/A 37.0 ppb (34) N/A N/A N/A 0.5 ppb (6) N/A N/A 49.0
 
March 23, 2019, 4 a.m. 51.0 ppb (47) 18.2 ppb (17) N/A 33.0 ppb (31) N/A N/A N/A 0.42 ppb (5) N/A N/A 47.0
 
March 23, 2019, 3 a.m. 44.0 ppb (41) 14.7 ppb (14) N/A 29.0 ppb (27) N/A N/A N/A 0.37 ppb (4) N/A N/A 41.0
 
March 23, 2019, 2 a.m. 43.6 ppb (40) 13.7 ppb (13) N/A 30.0 ppb (28) N/A N/A N/A 0.36 ppb (4) N/A N/A 40.0
 
March 23, 2019, 1 a.m. 42.6 ppb (39) 13.4 ppb (12) N/A 29.0 ppb (27) N/A N/A N/A 0.4 ppb (4) N/A N/A 39.0
 
March 23, 2019, midnight 36.0 ppb (33) 11.7 ppb (11) N/A 24.0 ppb (22) N/A N/A N/A 0.34 ppb (4) N/A N/A 33.0
 
March 22, 2019, 11 p.m. 33.6 ppb (31) 11.5 ppb (11) N/A 22.0 ppb (20) N/A N/A N/A 0.31 ppb (3) N/A N/A 31.0
 
March 22, 2019, 10 p.m. 24.9 ppb (23) 8.3 ppb (8) N/A 17.0 ppb (16) N/A N/A N/A 0.24 ppb (3) N/A N/A 23.0
 
March 22, 2019, 9 p.m. 21.3 ppb (20) 7.1 ppb (7) N/A 14.0 ppb (13) N/A N/A N/A 0.21 ppb (2) N/A N/A 20.0
 
March 22, 2019, 8 p.m. 36.5 ppb (34) 16.1 ppb (15) N/A 20.0 ppb (19) N/A N/A N/A 0.24 ppb (3) N/A N/A 34.0
 
March 22, 2019, 7 p.m. 39.1 ppb (36) 16.8 ppb (16) N/A 22.0 ppb (20) N/A N/A N/A 0.24 ppb (3) N/A N/A 36.0
 
March 22, 2019, 6 p.m. 32.1 ppb (30) 14.0 ppb (13) N/A 18.0 ppb (17) N/A N/A N/A 0.21 ppb (2) N/A N/A 30.0
 
March 22, 2019, 5 p.m. 54.9 ppb (51) 27.3 ppb (25) N/A 28.0 ppb (26) N/A N/A N/A 0.27 ppb (3) N/A N/A 51.0
 
March 22, 2019, 4 p.m. 56.0 ppb (52) 26.6 ppb (25) N/A 29.0 ppb (27) N/A N/A N/A 0.28 ppb (3) N/A N/A 52.0
 
March 22, 2019, 3 p.m. 78.3 ppb (76) 43.0 ppb (40) N/A 35.0 ppb (32) N/A N/A N/A 0.38 ppb (4) N/A N/A 76.0
 
March 22, 2019, 2 p.m. 89.3 ppb (88) 52.3 ppb (48) N/A 37.0 ppb (34) N/A N/A N/A 0.43 ppb (5) N/A N/A 88.0
 
March 22, 2019, 1 p.m. 101.0 ppb (100) 61.2 ppb (58) N/A 40.0 ppb (37) N/A N/A N/A 0.45 ppb (5) N/A N/A 100.0
 
March 22, 2019, noon 81.8 ppb (80) 43.9 ppb (41) N/A 38.0 ppb (35) N/A N/A N/A 0.4 ppb (4) N/A N/A 80.0
 
March 22, 2019, 11 a.m. 62.2 ppb (59) 29.4 ppb (27) N/A 33.0 ppb (31) N/A N/A N/A 0.32 ppb (4) N/A N/A 59.0
 
March 22, 2019, 10 a.m. 41.1 ppb (38) 15.5 ppb (14) N/A 26.0 ppb (24) N/A N/A N/A 0.24 ppb (3) N/A N/A 38.0
 
March 22, 2019, 9 a.m. 37.5 ppb (35) 12.2 ppb (11) N/A 25.0 ppb (23) N/A N/A N/A 0.22 ppb (2) N/A N/A 35.0
 
March 22, 2019, 8 a.m. 35.2 ppb (33) 11.5 ppb (11) N/A 24.0 ppb (22) N/A N/A N/A 0.23 ppb (3) N/A N/A 33.0
 
March 22, 2019, 7 a.m. 38.9 ppb (36) 12.4 ppb (11) N/A 27.0 ppb (25) N/A N/A N/A 0.26 ppb (3) N/A N/A 36.0
 
March 22, 2019, 6 a.m. 48.3 ppb (45) 17.6 ppb (16) N/A 31.0 ppb (29) N/A N/A N/A 0.32 ppb (4) N/A N/A 45.0
 
March 22, 2019, 5 a.m. 42.2 ppb (39) 14.9 ppb (14) N/A 27.0 ppb (25) N/A N/A N/A 0.35 ppb (4) N/A N/A 39.0
 
March 22, 2019, 4 a.m. 45.7 ppb (42) 18.0 ppb (17) N/A 28.0 ppb (26) N/A N/A N/A 0.37 ppb (4) N/A N/A 42.0
 
March 22, 2019, 3 a.m. 39.6 ppb (37) 15.1 ppb (14) N/A 24.0 ppb (22) N/A N/A N/A 0.3 ppb (3) N/A N/A 37.0
 
March 22, 2019, 2 a.m. 40.7 ppb (38) 16.2 ppb (15) N/A 25.0 ppb (23) N/A N/A N/A 0.3 ppb (3) N/A N/A 38.0
 
March 22, 2019, 1 a.m. 34.6 ppb (32) 12.9 ppb (12) N/A 22.0 ppb (20) N/A N/A N/A 0.3 ppb (3) N/A N/A 32.0
 
March 22, 2019, midnight 33.2 ppb (31) 12.7 ppb (12) N/A 20.0 ppb (19) N/A N/A N/A 0.28 ppb (3) N/A N/A 31.0
 
March 21, 2019, 11 p.m. 36.4 ppb (34) 14.9 ppb (14) N/A 22.0 ppb (20) N/A N/A N/A 0.28 ppb (3) N/A N/A 34.0
 
March 21, 2019, 10 p.m. 44.3 ppb (41) 21.1 ppb (20) N/A 23.0 ppb (21) N/A N/A N/A 0.29 ppb (3) N/A N/A 41.0
 
March 21, 2019, 9 p.m. 41.0 ppb (38) 19.8 ppb (18) N/A 21.0 ppb (19) N/A N/A N/A 0.27 ppb (3) N/A N/A 38.0
 
March 21, 2019, 8 p.m. 55.0 ppb (51) 27.9 ppb (26) N/A 27.0 ppb (25) N/A N/A N/A 0.28 ppb (3) N/A N/A 51.0
 
March 21, 2019, 7 p.m. 45.3 ppb (42) 20.2 ppb (19) N/A 25.0 ppb (23) N/A N/A N/A 0.25 ppb (3) N/A N/A 42.0
 
March 21, 2019, 6 p.m. 67.1 ppb (64) 33.4 ppb (31) N/A 34.0 ppb (31) N/A N/A N/A 0.28 ppb (3) N/A N/A 64.0
 
March 21, 2019, 5 p.m. 55.8 ppb (52) 28.5 ppb (26) N/A 27.0 ppb (25) N/A N/A N/A 0.26 ppb (3) N/A N/A 52.0
 
March 21, 2019, 4 p.m. 64.1 ppb (61) 31.5 ppb (29) N/A 33.0 ppb (31) N/A N/A N/A 0.27 ppb (3) N/A N/A 61.0
 
March 21, 2019, 3 p.m. 65.3 ppb (62) 32.7 ppb (30) N/A 33.0 ppb (31) N/A N/A N/A 0.31 ppb (3) N/A N/A 62.0
 
March 21, 2019, 2 p.m. 70.3 ppb (67) 34.2 ppb (32) N/A 36.0 ppb (33) N/A N/A N/A 0.37 ppb (4) N/A N/A 67.0
 
March 21, 2019, 1 p.m. 76.2 ppb (74) 39.1 ppb (36) N/A 37.0 ppb (34) N/A N/A N/A 0.39 ppb (4) N/A N/A 74.0
 
March 21, 2019, noon 67.4 ppb (64) 32.5 ppb (30) N/A 35.0 ppb (32) N/A N/A N/A 0.35 ppb (4) N/A N/A 64.0
 
March 21, 2019, 11 a.m. 48.9 ppb (45) 22.0 ppb (20) N/A 27.0 ppb (25) N/A N/A N/A 0.26 ppb (3) N/A N/A 45.0
 
March 21, 2019, 10 a.m. 37.4 ppb (35) 15.9 ppb (15) N/A 21.0 ppb (19) N/A N/A N/A 0.22 ppb (2) N/A N/A 35.0
 
March 21, 2019, 9 a.m. 38.0 ppb (35) 14.1 ppb (13) N/A 24.0 ppb (22) N/A N/A N/A 0.21 ppb (2) N/A N/A 35.0
 
March 21, 2019, 8 a.m. 31.9 ppb (30) 10.6 ppb (10) N/A 21.0 ppb (19) N/A N/A N/A 0.25 ppb (3) N/A N/A 30.0
 
March 21, 2019, 7 a.m. 30.3 ppb (28) 10.8 ppb (10) N/A 20.0 ppb (19) N/A N/A N/A 0.25 ppb (3) N/A N/A 28.0
 
March 21, 2019, 6 a.m. 41.2 ppb (38) 15.2 ppb (14) N/A 26.0 ppb (24) N/A N/A N/A 0.3 ppb (3) N/A N/A 38.0
 
March 21, 2019, 5 a.m. 60.5 ppb (57) 24.0 ppb (22) N/A 37.0 ppb (34) N/A N/A N/A 0.37 ppb (4) N/A N/A 57.0
 
March 21, 2019, 4 a.m. 48.8 ppb (45) 15.1 ppb (14) N/A 34.0 ppb (31) N/A N/A N/A 0.32 ppb (4) N/A N/A 45.0
 
March 21, 2019, 3 a.m. 39.9 ppb (37) 11.0 ppb (10) N/A 29.0 ppb (27) N/A N/A N/A 0.26 ppb (3) N/A N/A 37.0
 
March 21, 2019, 2 a.m. 45.5 ppb (42) 17.2 ppb (16) N/A 28.0 ppb (26) N/A N/A N/A 0.29 ppb (3) N/A N/A 42.0
 
March 21, 2019, 1 a.m. 54.1 ppb (50) 20.9 ppb (19) N/A 33.0 ppb (31) N/A N/A N/A 0.34 ppb (4) N/A N/A 50.0
 
March 21, 2019, midnight 45.9 ppb (42) 16.0 ppb (15) N/A 30.0 ppb (28) N/A N/A N/A 0.31 ppb (3) N/A N/A 42.0
 
March 20, 2019, 11 p.m. 35.6 ppb (33) 10.9 ppb (10) N/A 25.0 ppb (23) N/A N/A N/A 0.3 ppb (3) N/A N/A 33.0
 
March 20, 2019, 10 p.m. 16.7 ppb (15) 4.7 ppb (4) N/A 12.0 ppb (11) N/A N/A N/A 0.2 ppb (2) N/A N/A 15.0
 
March 20, 2019, 9 p.m. 11.0 ppb (10) 2.0 ppb (2) N/A 9.0 ppb (8) N/A N/A N/A 0.16 ppb (2) N/A N/A 10.0
 
March 20, 2019, 8 p.m. 11.4 ppb (11) 2.6 ppb (2) N/A 9.0 ppb (8) N/A N/A N/A 0.16 ppb (2) N/A N/A 11.0
 
March 20, 2019, 7 p.m. 31.8 ppb (29) 12.8 ppb (12) N/A 19.0 ppb (18) N/A N/A N/A 0.2 ppb (2) N/A N/A 29.0
 
March 20, 2019, 6 p.m. 40.6 ppb (38) 17.9 ppb (17) N/A 23.0 ppb (21) N/A N/A N/A 0.22 ppb (2) N/A N/A 38.0
 
March 20, 2019, 5 p.m. 27.7 ppb (26) 8.8 ppb (8) N/A 19.0 ppb (18) N/A N/A N/A 0.21 ppb (2) N/A N/A 26.0
 
March 20, 2019, 4 p.m. 33.6 ppb (31) 9.7 ppb (9) N/A 24.0 ppb (22) N/A N/A N/A 0.23 ppb (3) N/A N/A 31.0
 
March 20, 2019, 3 p.m. 38.3 ppb (35) 10.4 ppb (10) N/A 28.0 ppb (26) N/A N/A N/A 0.25 ppb (3) N/A N/A 35.0
 
March 20, 2019, 2 p.m. 75.1 ppb (72) 35.2 ppb (33) N/A 40.0 ppb (37) N/A N/A N/A 0.35 ppb (4) N/A N/A 72.0
 
March 20, 2019, 1 p.m. 90.1 ppb (88) 46.8 ppb (43) N/A 43.0 ppb (40) N/A N/A N/A 0.46 ppb (5) N/A N/A 88.0
 
March 20, 2019, noon 55.7 ppb (52) 22.6 ppb (21) N/A 33.0 ppb (31) N/A N/A N/A 0.3 ppb (3) N/A N/A 52.0
 
March 20, 2019, 11 a.m. 22.0 ppb (20) 1.5 ppb (1) N/A 20.0 ppb (19) N/A N/A N/A 0.15 ppb (2) N/A N/A 20.0
 
March 20, 2019, 10 a.m. 21.1 ppb (20) 1.8 ppb (2) N/A 19.0 ppb (18) N/A N/A N/A 0.17 ppb (2) N/A N/A 20.0
 
March 20, 2019, 9 a.m. 7.1 ppb (7) -0.3 ppb (0) N/A 7.0 ppb (6) N/A N/A N/A 0.13 ppb (1) N/A N/A 7.0
 
March 20, 2019, 8 a.m. 14.3 ppb (13) 1.8 ppb (2) N/A 12.0 ppb (11) N/A N/A N/A 0.16 ppb (2) N/A N/A 13.0
 
March 20, 2019, 7 a.m. 9.1 ppb (8) 0.2 ppb (0) N/A 9.0 ppb (8) N/A N/A N/A 0.13 ppb (1) N/A N/A 8.0
 
March 20, 2019, 6 a.m. 18.9 ppb (18) 3.0 ppb (3) N/A 16.0 ppb (15) N/A N/A N/A 0.17 ppb (2) N/A N/A 18.0
 
March 20, 2019, 5 a.m. 24.7 ppb (23) 4.6 ppb (4) N/A 20.0 ppb (19) N/A N/A N/A 0.23 ppb (3) N/A N/A 23.0
 
March 20, 2019, 4 a.m. 27.8 ppb (26) 6.7 ppb (6) N/A 21.0 ppb (19) N/A N/A N/A 0.24 ppb (3) N/A N/A 26.0
 
March 20, 2019, 3 a.m. 50.3 ppb (47) 16.4 ppb (15) N/A 34.0 ppb (31) N/A N/A N/A 0.38 ppb (4) N/A N/A 47.0
 
March 20, 2019, 2 a.m. 34.4 ppb (32) 8.1 ppb (8) N/A 26.0 ppb (24) N/A N/A N/A 0.31 ppb (3) N/A N/A 32.0
 
March 20, 2019, 1 a.m. 36.3 ppb (34) 11.1 ppb (10) N/A 25.0 ppb (23) N/A N/A N/A 0.35 ppb (4) N/A N/A 34.0
 
March 20, 2019, midnight 37.4 ppb (35) 10.5 ppb (10) N/A 27.0 ppb (25) N/A N/A N/A 0.34 ppb (4) N/A N/A 35.0
 
March 19, 2019, 11 p.m. 31.8 ppb (29) 8.4 ppb (8) N/A 23.0 ppb (21) N/A N/A N/A 0.32 ppb (4) N/A N/A 29.0
 
March 19, 2019, 10 p.m. 21.8 ppb (20) 5.5 ppb (5) N/A 16.0 ppb (15) N/A N/A N/A 0.26 ppb (3) N/A N/A 20.0
 
March 19, 2019, 9 p.m. 39.5 ppb (37) 13.1 ppb (12) N/A 26.0 ppb (24) N/A N/A N/A 0.34 ppb (4) N/A N/A 37.0
 
March 19, 2019, 8 p.m. 52.3 ppb (48) 19.0 ppb (18) N/A 33.0 ppb (31) N/A N/A N/A 0.39 ppb (4) N/A N/A 48.0
 
March 19, 2019, 7 p.m. 66.4 ppb (63) 25.4 ppb (24) N/A 41.0 ppb (38) N/A N/A N/A 0.4 ppb (4) N/A N/A 63.0
 
March 19, 2019, 6 p.m. 70.7 ppb (68) 28.4 ppb (26) N/A 42.0 ppb (39) N/A N/A N/A 0.44 ppb (5) N/A N/A 68.0
 
March 19, 2019, 5 p.m. 113.0 ppb (102) 59.3 ppb (56) N/A 54.0 ppb (50) N/A N/A N/A 0.57 ppb (6) N/A N/A 102.0
 
March 19, 2019, 4 p.m. 108.3 ppb (101) 58.3 ppb (55) N/A 50.0 ppb (46) N/A N/A N/A 0.56 ppb (6) N/A N/A 101.0
 
March 19, 2019, 3 p.m. 138.1 ppb (107) 89.7 ppb (88) N/A 48.0 ppb (44) N/A N/A N/A 0.75 ppb (8) N/A N/A 107.0
 
March 19, 2019, 2 p.m. 151.5 ppb (110) 107.8 ppb (101) N/A 44.0 ppb (41) N/A N/A N/A 0.83 ppb (9) N/A N/A 110.0
 
March 19, 2019, 1 p.m. 177.8 ppb (115) 130.1 ppb (106) N/A 48.0 ppb (44) N/A N/A N/A 0.84 ppb (9) N/A N/A 115.0
 
March 19, 2019, noon 106.0 ppb (101) 65.4 ppb (62) N/A 41.0 ppb (38) N/A N/A N/A 0.54 ppb (6) N/A N/A 101.0
 
March 19, 2019, 11 a.m. 111.4 ppb (102) 70.2 ppb (67) N/A 41.0 ppb (38) N/A N/A N/A 0.52 ppb (6) N/A N/A 102.0
 
March 19, 2019, 10 a.m. 85.8 ppb (84) 43.1 ppb (40) N/A 43.0 ppb (40) N/A N/A N/A 0.52 ppb (6) N/A N/A 84.0
 
March 19, 2019, 9 a.m. 76.4 ppb (74) 27.8 ppb (26) N/A 49.0 ppb (45) N/A N/A N/A 0.43 ppb (5) N/A N/A 74.0
 
March 19, 2019, 8 a.m. 63.5 ppb (60) 12.6 ppb (12) N/A 51.0 ppb (47) N/A N/A N/A 0.4 ppb (4) N/A N/A 60.0
 
March 19, 2019, 7 a.m. 75.8 ppb (73) 19.0 ppb (18) N/A 57.0 ppb (53) N/A N/A N/A 0.45 ppb (5) N/A N/A 73.0
 
March 19, 2019, 6 a.m. 82.0 ppb (80) 24.2 ppb (22) N/A 58.0 ppb (54) N/A N/A N/A 0.49 ppb (5) N/A N/A 80.0
 
March 19, 2019, 5 a.m. 58.5 ppb (55) 10.6 ppb (10) N/A 48.0 ppb (44) N/A N/A N/A 0.38 ppb (4) N/A N/A 55.0
 
March 19, 2019, 4 a.m. 37.5 ppb (35) 3.6 ppb (3) N/A 34.0 ppb (31) N/A N/A N/A 0.29 ppb (3) N/A N/A 35.0
 
March 19, 2019, 3 a.m. 55.4 ppb (51) 11.6 ppb (11) N/A 44.0 ppb (41) N/A N/A N/A 0.38 ppb (4) N/A N/A 51.0
 
March 19, 2019, 2 a.m. 55.9 ppb (52) 13.7 ppb (13) N/A 42.0 ppb (39) N/A N/A N/A 0.4 ppb (4) N/A N/A 52.0
 
March 19, 2019, 1 a.m. 44.7 ppb (41) 10.4 ppb (10) N/A 34.0 ppb (31) N/A N/A N/A 0.36 ppb (4) N/A N/A 41.0
 
March 19, 2019, midnight 43.9 ppb (41) 13.4 ppb (12) N/A 30.0 ppb (28) N/A N/A N/A 0.36 ppb (4) N/A N/A 41.0
 
March 18, 2019, 11 p.m. 39.9 ppb (37) 13.4 ppb (12) N/A 26.0 ppb (24) N/A N/A N/A 0.3 ppb (3) N/A N/A 37.0
 
March 18, 2019, 10 p.m. 37.5 ppb (35) 11.4 ppb (11) N/A 26.0 ppb (24) N/A N/A N/A 0.33 ppb (4) N/A N/A 35.0
 
March 18, 2019, 9 p.m. 36.2 ppb (34) 14.2 ppb (13) N/A 22.0 ppb (20) N/A N/A N/A 0.22 ppb (2) N/A N/A 34.0
 
March 18, 2019, 8 p.m. 43.1 ppb (40) 19.0 ppb (18) N/A 24.0 ppb (22) N/A N/A N/A 0.2 ppb (2) N/A N/A 40.0
 
March 18, 2019, 7 p.m. 40.3 ppb (37) 16.4 ppb (15) N/A 24.0 ppb (22) N/A N/A N/A 0.22 ppb (2) N/A N/A 37.0
 
March 18, 2019, 6 p.m. 58.0 ppb (54) 25.5 ppb (24) N/A 33.0 ppb (31) N/A N/A N/A 0.27 ppb (3) N/A N/A 54.0
 
March 18, 2019, 5 p.m. 78.3 ppb (76) 40.8 ppb (38) N/A 37.0 ppb (34) N/A N/A N/A 0.32 ppb (4) N/A N/A 76.0
 
March 18, 2019, 4 p.m. 99.8 ppb (99) 57.1 ppb (53) N/A 43.0 ppb (40) N/A N/A N/A 0.39 ppb (4) N/A N/A 99.0
 
March 18, 2019, 3 p.m. 96.1 ppb (95) 56.9 ppb (53) N/A 39.0 ppb (36) N/A N/A N/A 0.55 ppb (6) N/A N/A 95.0
 
March 18, 2019, 2 p.m. 161.2 ppb (112) 115.8 ppb (103) N/A 45.0 ppb (42) N/A N/A N/A 0.83 ppb (9) N/A N/A 112.0
 
March 18, 2019, 1 p.m. 161.8 ppb (112) 119.3 ppb (104) N/A 43.0 ppb (40) N/A N/A N/A 0.81 ppb (9) N/A N/A 112.0
 
March 18, 2019, noon 118.4 ppb (103) 78.1 ppb (76) N/A 40.0 ppb (37) N/A N/A N/A 0.67 ppb (7) N/A N/A 103.0
 
March 18, 2019, 11 a.m. 126.1 ppb (105) 89.2 ppb (87) N/A 37.0 ppb (34) N/A N/A N/A 0.63 ppb (7) N/A N/A 105.0
 
March 18, 2019, 10 a.m. 86.1 ppb (84) 50.4 ppb (47) N/A 36.0 ppb (33) N/A N/A N/A 0.58 ppb (6) N/A N/A 84.0
 
March 18, 2019, 9 a.m. 66.9 ppb (64) 29.8 ppb (28) N/A 37.0 ppb (34) N/A N/A N/A 0.54 ppb (6) N/A N/A 64.0
 
March 18, 2019, 8 a.m. 51.4 ppb (48) 11.4 ppb (11) N/A 40.0 ppb (37) N/A N/A N/A 0.5 ppb (6) N/A N/A 48.0
 
March 18, 2019, 7 a.m. 43.1 ppb (40) 6.4 ppb (6) N/A 37.0 ppb (34) N/A N/A N/A 0.53 ppb (6) N/A N/A 40.0
 
March 18, 2019, 6 a.m. 30.8 ppb (29) 1.3 ppb (1) N/A 29.0 ppb (27) N/A N/A N/A 0.35 ppb (4) N/A N/A 29.0
 
March 18, 2019, 5 a.m. 28.5 ppb (26) 2.6 ppb (2) N/A 26.0 ppb (24) N/A N/A N/A 0.49 ppb (5) N/A N/A 26.0
 
March 18, 2019, 4 a.m. 26.3 ppb (24) 2.5 ppb (2) N/A 24.0 ppb (22) N/A N/A N/A 0.34 ppb (4) N/A N/A 24.0
 
March 18, 2019, 3 a.m. 35.1 ppb (32) 7.1 ppb (7) N/A 28.0 ppb (26) N/A N/A N/A 0.38 ppb (4) N/A N/A 32.0
 
March 18, 2019, 2 a.m. 38.3 ppb (35) 7.4 ppb (7) N/A 31.0 ppb (29) N/A N/A N/A 0.42 ppb (5) N/A N/A 35.0
 
March 18, 2019, 1 a.m. 35.3 ppb (33) 7.9 ppb (7) N/A 27.0 ppb (25) N/A N/A N/A 0.37 ppb (4) N/A N/A 33.0
 
March 18, 2019, midnight 22.6 ppb (21) 6.5 ppb (6) N/A 16.0 ppb (15) N/A N/A N/A 0.24 ppb (3) N/A N/A 21.0
 
March 17, 2019, 11 p.m. 12.1 ppb (11) 2.7 ppb (3) N/A 9.0 ppb (8) N/A N/A N/A 0.19 ppb (2) N/A N/A 11.0
 
March 17, 2019, 10 p.m. 12.9 ppb (12) 3.3 ppb (3) N/A 10.0 ppb (9) N/A N/A N/A 0.18 ppb (2) N/A N/A 12.0
 
March 17, 2019, 9 p.m. 7.4 ppb (7) 1.5 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.16 ppb (2) N/A N/A 7.0
 
March 17, 2019, 8 p.m. 10.7 ppb (10) 3.0 ppb (3) N/A 8.0 ppb (7) N/A N/A N/A 0.17 ppb (2) N/A N/A 10.0
 
March 17, 2019, 7 p.m. 27.9 ppb (26) 9.6 ppb (9) N/A 18.0 ppb (17) N/A N/A N/A 0.31 ppb (3) N/A N/A 26.0
 
March 17, 2019, 6 p.m. 44.4 ppb (41) 17.6 ppb (16) N/A 27.0 ppb (25) N/A N/A N/A 0.41 ppb (5) N/A N/A 41.0
 
March 17, 2019, 5 p.m. 63.4 ppb (60) 29.0 ppb (27) N/A 34.0 ppb (31) N/A N/A N/A 0.48 ppb (5) N/A N/A 60.0
 
March 17, 2019, 4 p.m. 58.9 ppb (55) 26.7 ppb (25) N/A 32.0 ppb (30) N/A N/A N/A 0.46 ppb (5) N/A N/A 55.0
 
March 17, 2019, 3 p.m. 70.9 ppb (68) 38.9 ppb (36) N/A 32.0 ppb (30) N/A N/A N/A 0.59 ppb (7) N/A N/A 68.0
 
March 17, 2019, 2 p.m. 104.4 ppb (101) 68.9 ppb (66) N/A 35.0 ppb (32) N/A N/A N/A 0.67 ppb (7) N/A N/A 101.0
 
March 17, 2019, 1 p.m. 99.1 ppb (98) 62.5 ppb (59) N/A 37.0 ppb (34) N/A N/A N/A 0.71 ppb (8) N/A N/A 98.0
 
March 17, 2019, noon 117.0 ppb (103) 82.1 ppb (80) N/A 35.0 ppb (32) N/A N/A N/A 0.68 ppb (8) N/A N/A 103.0
 
March 17, 2019, 11 a.m. 68.6 ppb (66) 34.7 ppb (32) N/A 34.0 ppb (31) N/A N/A N/A 0.48 ppb (5) N/A N/A 66.0
 
March 17, 2019, 10 a.m. 85.2 ppb (83) 47.1 ppb (44) N/A 38.0 ppb (35) N/A N/A N/A 0.5 ppb (6) N/A N/A 83.0
 
March 17, 2019, 9 a.m. 41.2 ppb (38) 5.6 ppb (5) N/A 36.0 ppb (33) N/A N/A N/A 0.42 ppb (5) N/A N/A 38.0
 
March 17, 2019, 8 a.m. 60.9 ppb (57) 18.5 ppb (17) N/A 42.0 ppb (39) N/A N/A N/A 0.58 ppb (6) N/A N/A 57.0
 
March 17, 2019, 7 a.m. 49.5 ppb (46) 11.0 ppb (10) N/A 39.0 ppb (36) N/A N/A N/A 0.4 ppb (4) N/A N/A 46.0
 
March 17, 2019, 6 a.m. 16.6 ppb (15) 1.7 ppb (2) N/A 15.0 ppb (14) N/A N/A N/A 0.31 ppb (3) N/A N/A 15.0
 
March 17, 2019, 5 a.m. 7.7 ppb (7) -0.5 ppb (0) N/A 8.0 ppb (7) N/A N/A N/A 0.23 ppb (3) N/A N/A 7.0
 
March 17, 2019, 4 a.m. 7.6 ppb (7) -0.4 ppb (0) N/A 8.0 ppb (7) N/A N/A N/A 0.18 ppb (2) N/A N/A 7.0
 
March 17, 2019, 3 a.m. 6.1 ppb (6) -0.6 ppb (0) N/A 7.0 ppb (6) N/A N/A N/A 0.21 ppb (2) N/A N/A 6.0
 
March 17, 2019, 2 a.m. 4.6 ppb (4) -0.7 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.16 ppb (2) N/A N/A 5.0
 
March 17, 2019, 1 a.m. 3.3 ppb (3) -0.6 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.14 ppb (2) N/A N/A 4.0
 
March 17, 2019, midnight 2.6 ppb (2) -0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.12 ppb (1) N/A N/A 3.0
 
March 16, 2019, 11 p.m. 1.9 ppb (2) -0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.11 ppb (1) N/A N/A 2.0
 
March 16, 2019, 10 p.m. 2.1 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A 0.11 ppb (1) N/A N/A 2.0
 
March 16, 2019, 9 p.m. 2.6 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.11 ppb (1) N/A N/A 3.0
 
March 16, 2019, 8 p.m. 3.1 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.11 ppb (1) N/A N/A 3.0
 
March 16, 2019, 7 p.m. 3.4 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.12 ppb (1) N/A N/A 3.0
 
March 16, 2019, 6 p.m. 4.2 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.13 ppb (1) N/A N/A 4.0
 
March 16, 2019, 5 p.m. 4.5 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.14 ppb (2) N/A N/A 4.0
 
March 16, 2019, 4 p.m. 7.2 ppb (7) 1.3 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.2 ppb (2) N/A N/A 7.0
 
March 16, 2019, 3 p.m. 5.3 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.15 ppb (2) N/A N/A 5.0
 
March 16, 2019, 2 p.m. 6.3 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A 0.12 ppb (1) N/A N/A 6.0
 
March 16, 2019, 1 p.m. 9.0 ppb (8) 0.5 ppb (0) N/A 9.0 ppb (8) N/A N/A N/A 0.12 ppb (1) N/A N/A 8.0
 
March 16, 2019, noon 4.8 ppb (4) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.11 ppb (1) N/A N/A 5.0
 
March 16, 2019, 11 a.m. 3.9 ppb (4) -0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.1 ppb (1) N/A N/A 4.0
 
March 16, 2019, 10 a.m. 3.9 ppb (4) -0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.1 ppb (1) N/A N/A 4.0
 
March 16, 2019, 9 a.m. 5.2 ppb (5) -0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A 0.11 ppb (1) N/A N/A 6.0
 
March 16, 2019, 8 a.m. 4.9 ppb (5) -0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.12 ppb (1) N/A N/A 5.0
 
March 16, 2019, 7 a.m. 2.5 ppb (2) -0.6 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A 0.11 ppb (1) N/A N/A 3.0
 
March 16, 2019, 6 a.m. 4.3 ppb (4) -0.5 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.17 ppb (2) N/A N/A 5.0