AQSQID: 060710026

Site Name: Ontario Near Road

Location: San Bernardino Co, CA

Reporting: True, Located: True

Current AQI: 29.0

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
May 25, 2019, 4 p.m. 30.9 ppb (29) 13.4 ppb (12) N/A 18.0 ppb (17) N/A N/A N/A 0.34 ppb (4) N/A N/A 29.0
 
May 25, 2019, 3 p.m. 55.3 ppb (51) 31.0 ppb (29) N/A 24.0 ppb (22) N/A N/A N/A 0.77 ppb (9) N/A N/A 51.0
 
May 25, 2019, 2 p.m. 87.9 ppb (86) 57.5 ppb (54) N/A 30.0 ppb (28) N/A N/A N/A 0.56 ppb (6) N/A N/A 86.0
 
May 25, 2019, 1 p.m. 56.1 ppb (52) 36.8 ppb (34) N/A 19.0 ppb (18) N/A N/A N/A 0.42 ppb (5) N/A N/A 52.0
 
May 25, 2019, noon 55.2 ppb (51) 34.5 ppb (32) N/A 21.0 ppb (19) N/A N/A N/A 0.44 ppb (5) N/A N/A 51.0
 
May 25, 2019, 11 a.m. 51.2 ppb (47) 22.3 ppb (21) N/A 29.0 ppb (27) N/A N/A N/A 0.38 ppb (4) N/A N/A 47.0
 
May 25, 2019, 10 a.m. 44.8 ppb (41) 12.7 ppb (12) N/A 32.0 ppb (30) N/A N/A N/A 0.32 ppb (4) N/A N/A 41.0
 
May 25, 2019, 9 a.m. 54.0 ppb (50) 20.6 ppb (19) N/A 33.0 ppb (31) N/A N/A N/A 0.33 ppb (4) N/A N/A 50.0
 
May 25, 2019, 8 a.m. 51.2 ppb (47) 19.7 ppb (18) N/A 31.0 ppb (29) N/A N/A N/A 0.35 ppb (4) N/A N/A 47.0
 
May 25, 2019, 7 a.m. 27.5 ppb (25) 4.5 ppb (4) N/A 23.0 ppb (21) N/A N/A N/A 0.27 ppb (3) N/A N/A 25.0
 
May 25, 2019, 6 a.m. 24.2 ppb (22) 2.7 ppb (3) N/A 21.0 ppb (19) N/A N/A N/A 0.26 ppb (3) N/A N/A 22.0
 
May 25, 2019, 5 a.m. 35.5 ppb (33) 9.3 ppb (9) N/A 26.0 ppb (24) N/A N/A N/A 0.29 ppb (3) N/A N/A 33.0
 
May 25, 2019, 4 a.m. 41.6 ppb (39) 13.5 ppb (12) N/A 28.0 ppb (26) N/A N/A N/A 0.39 ppb (4) N/A N/A 39.0
 
May 25, 2019, 3 a.m. 39.8 ppb (37) 13.4 ppb (12) N/A 26.0 ppb (24) N/A N/A N/A 0.32 ppb (4) N/A N/A 37.0
 
May 25, 2019, 2 a.m. 39.0 ppb (36) 12.8 ppb (12) N/A 26.0 ppb (24) N/A N/A N/A 0.33 ppb (4) N/A N/A 36.0
 
May 25, 2019, 1 a.m. 45.4 ppb (42) 14.8 ppb (14) N/A 31.0 ppb (29) N/A N/A N/A 0.34 ppb (4) N/A N/A 42.0
 
May 25, 2019, midnight 38.2 ppb (35) 12.1 ppb (11) N/A 26.0 ppb (24) N/A N/A N/A 0.32 ppb (4) N/A N/A 35.0
 
May 24, 2019, 11 p.m. 38.5 ppb (36) 14.3 ppb (13) N/A 24.0 ppb (22) N/A N/A N/A 0.37 ppb (4) N/A N/A 36.0
 
May 24, 2019, 10 p.m. 28.2 ppb (26) 10.5 ppb (10) N/A 18.0 ppb (17) N/A N/A N/A 0.23 ppb (3) N/A N/A 26.0
 
May 24, 2019, 9 p.m. 22.7 ppb (21) 8.5 ppb (8) N/A 14.0 ppb (13) N/A N/A N/A 0.19 ppb (2) N/A N/A 21.0
 
May 24, 2019, 8 p.m. 29.2 ppb (27) 11.7 ppb (11) N/A 17.0 ppb (16) N/A N/A N/A 0.22 ppb (2) N/A N/A 27.0
 
May 24, 2019, 7 p.m. 45.3 ppb (42) 20.8 ppb (19) N/A 24.0 ppb (22) N/A N/A N/A 0.29 ppb (3) N/A N/A 42.0
 
May 24, 2019, 6 p.m. 49.3 ppb (46) 23.5 ppb (22) N/A 26.0 ppb (24) N/A N/A N/A 0.3 ppb (3) N/A N/A 46.0
 
May 24, 2019, 5 p.m. 55.8 ppb (52) 28.7 ppb (27) N/A 27.0 ppb (25) N/A N/A N/A 0.3 ppb (3) N/A N/A 52.0
 
May 24, 2019, 4 p.m. 38.0 ppb (35) 18.0 ppb (17) N/A 20.0 ppb (19) N/A N/A N/A 0.27 ppb (3) N/A N/A 35.0
 
May 24, 2019, 3 p.m. 32.5 ppb (30) 15.7 ppb (15) N/A 17.0 ppb (16) N/A N/A N/A 0.29 ppb (3) N/A N/A 30.0
 
May 24, 2019, 2 p.m. 55.7 ppb (52) 34.3 ppb (32) N/A 21.0 ppb (19) N/A N/A N/A 0.32 ppb (4) N/A N/A 52.0
 
May 24, 2019, 1 p.m. 111.6 ppb (102) 84.4 ppb (82) N/A 27.0 ppb (25) N/A N/A N/A 0.54 ppb (6) N/A N/A 102.0
 
May 24, 2019, noon 87.2 ppb (85) 62.7 ppb (59) N/A 25.0 ppb (23) N/A N/A N/A 0.46 ppb (5) N/A N/A 85.0
 
May 24, 2019, 11 a.m. 60.4 ppb (57) 39.6 ppb (37) N/A 21.0 ppb (19) N/A N/A N/A 0.39 ppb (4) N/A N/A 57.0
 
May 24, 2019, 10 a.m. 64.9 ppb (62) 45.6 ppb (42) N/A 19.0 ppb (18) N/A N/A N/A 0.37 ppb (4) N/A N/A 62.0
 
May 24, 2019, 9 a.m. 55.1 ppb (51) 34.8 ppb (32) N/A 20.0 ppb (19) N/A N/A N/A 0.43 ppb (5) N/A N/A 51.0
 
May 24, 2019, 8 a.m. 53.4 ppb (49) 30.2 ppb (28) N/A 23.0 ppb (21) N/A N/A N/A 0.44 ppb (5) N/A N/A 49.0
 
May 24, 2019, 7 a.m. 75.3 ppb (73) 45.0 ppb (42) N/A 30.0 ppb (28) N/A N/A N/A 0.48 ppb (5) N/A N/A 73.0
 
May 24, 2019, 6 a.m. 90.3 ppb (89) 57.2 ppb (53) N/A 33.0 ppb (31) N/A N/A N/A 0.49 ppb (5) N/A N/A 89.0
 
May 24, 2019, 5 a.m. 94.0 ppb (93) 54.9 ppb (51) N/A 39.0 ppb (36) N/A N/A N/A 0.44 ppb (5) N/A N/A 93.0
 
May 24, 2019, 4 a.m. 20.0 ppb (19) 2.6 ppb (2) N/A 17.0 ppb (16) N/A N/A N/A 0.21 ppb (2) N/A N/A 19.0
 
May 24, 2019, 3 a.m. 10.2 ppb (9) 0.4 ppb (0) N/A 10.0 ppb (9) N/A N/A N/A 0.16 ppb (2) N/A N/A 9.0
 
May 24, 2019, 2 a.m. 7.2 ppb (7) 0.3 ppb (0) N/A 7.0 ppb (6) N/A N/A N/A 0.14 ppb (2) N/A N/A 7.0
 
May 24, 2019, 1 a.m. 10.0 ppb (9) 1.4 ppb (1) N/A 9.0 ppb (8) N/A N/A N/A 0.15 ppb (2) N/A N/A 9.0
 
May 24, 2019, midnight 14.0 ppb (13) 2.7 ppb (3) N/A 11.0 ppb (10) N/A N/A N/A 0.19 ppb (2) N/A N/A 13.0
 
May 23, 2019, 11 p.m. 16.6 ppb (15) 2.3 ppb (2) N/A 14.0 ppb (13) N/A N/A N/A 0.22 ppb (2) N/A N/A 15.0
 
May 23, 2019, 10 p.m. 21.9 ppb (20) 3.1 ppb (3) N/A 19.0 ppb (18) N/A N/A N/A 0.22 ppb (2) N/A N/A 20.0
 
May 23, 2019, 9 p.m. 20.9 ppb (19) 2.6 ppb (2) N/A 18.0 ppb (17) N/A N/A N/A 0.2 ppb (2) N/A N/A 19.0
 
May 23, 2019, 8 p.m. 27.9 ppb (26) 10.1 ppb (9) N/A 18.0 ppb (17) N/A N/A N/A 0.2 ppb (2) N/A N/A 26.0
 
May 23, 2019, 7 p.m. 13.3 ppb (12) 2.2 ppb (2) N/A 11.0 ppb (10) N/A N/A N/A 0.16 ppb (2) N/A N/A 12.0
 
May 23, 2019, 6 p.m. 16.4 ppb (15) 2.4 ppb (2) N/A 14.0 ppb (13) N/A N/A N/A 0.16 ppb (2) N/A N/A 15.0
 
May 23, 2019, 5 p.m. 35.3 ppb (33) 13.8 ppb (13) N/A 22.0 ppb (20) N/A N/A N/A 0.19 ppb (2) N/A N/A 33.0
 
May 23, 2019, 4 p.m. 55.3 ppb (51) 29.2 ppb (27) N/A 26.0 ppb (24) N/A N/A N/A 0.26 ppb (3) N/A N/A 51.0
 
May 23, 2019, 3 p.m. 37.5 ppb (35) 13.4 ppb (12) N/A 24.0 ppb (22) N/A N/A N/A 0.22 ppb (2) N/A N/A 35.0
 
May 23, 2019, 2 p.m. 37.2 ppb (34) 11.8 ppb (11) N/A 25.0 ppb (23) N/A N/A N/A 0.21 ppb (2) N/A N/A 34.0
 
May 23, 2019, 1 p.m. 35.3 ppb (33) 10.1 ppb (9) N/A 25.0 ppb (23) N/A N/A N/A 0.21 ppb (2) N/A N/A 33.0
 
May 23, 2019, noon 28.2 ppb (26) 5.5 ppb (5) N/A 23.0 ppb (21) N/A N/A N/A 0.19 ppb (2) N/A N/A 26.0
 
May 23, 2019, 11 a.m. 23.1 ppb (21) 4.5 ppb (4) N/A 19.0 ppb (18) N/A N/A N/A 0.18 ppb (2) N/A N/A 21.0
 
May 23, 2019, 10 a.m. 32.1 ppb (30) 8.0 ppb (7) N/A 24.0 ppb (22) N/A N/A N/A 0.2 ppb (2) N/A N/A 30.0
 
May 23, 2019, 9 a.m. 12.5 ppb (12) 1.1 ppb (1) N/A 11.0 ppb (10) N/A N/A N/A 0.15 ppb (2) N/A N/A 12.0
 
May 23, 2019, 8 a.m. 18.8 ppb (17) 1.9 ppb (2) N/A 17.0 ppb (16) N/A N/A N/A 0.19 ppb (2) N/A N/A 17.0
 
May 23, 2019, 7 a.m. 20.5 ppb (19) 1.5 ppb (1) N/A 19.0 ppb (18) N/A N/A N/A 0.22 ppb (2) N/A N/A 19.0
 
May 23, 2019, 6 a.m. 21.7 ppb (20) 0.8 ppb (1) N/A 21.0 ppb (19) N/A N/A N/A 0.19 ppb (2) N/A N/A 20.0
 
May 23, 2019, 5 a.m. 34.2 ppb (32) 6.3 ppb (6) N/A 28.0 ppb (26) N/A N/A N/A 0.2 ppb (2) N/A N/A 32.0
 
May 23, 2019, 4 a.m. 16.0 ppb (15) 1.3 ppb (1) N/A 15.0 ppb (14) N/A N/A N/A 0.18 ppb (2) N/A N/A 15.0
 
May 23, 2019, 3 a.m. 22.4 ppb (21) 3.0 ppb (3) N/A 19.0 ppb (18) N/A N/A N/A 0.2 ppb (2) N/A N/A 21.0
 
May 23, 2019, 2 a.m. 30.6 ppb (28) 5.3 ppb (5) N/A 25.0 ppb (23) N/A N/A N/A 0.22 ppb (2) N/A N/A 28.0
 
May 23, 2019, 1 a.m. 41.9 ppb (39) 13.4 ppb (12) N/A 28.0 ppb (26) N/A N/A N/A 0.28 ppb (3) N/A N/A 39.0
 
May 23, 2019, midnight 43.0 ppb (40) 15.5 ppb (14) N/A 27.0 ppb (25) N/A N/A N/A 0.28 ppb (3) N/A N/A 40.0
 
May 22, 2019, 11 p.m. 38.0 ppb (35) 10.8 ppb (10) N/A 27.0 ppb (25) N/A N/A N/A 0.25 ppb (3) N/A N/A 35.0
 
May 22, 2019, 10 p.m. 24.9 ppb (23) 4.0 ppb (4) N/A 21.0 ppb (19) N/A N/A N/A 0.21 ppb (2) N/A N/A 23.0
 
May 22, 2019, 9 p.m. 45.4 ppb (42) 15.3 ppb (14) N/A 30.0 ppb (28) N/A N/A N/A 0.26 ppb (3) N/A N/A 42.0
 
May 22, 2019, 8 p.m. 25.1 ppb (23) 4.9 ppb (5) N/A 20.0 ppb (19) N/A N/A N/A 0.17 ppb (2) N/A N/A 23.0
 
May 22, 2019, 7 p.m. 14.8 ppb (14) 1.7 ppb (2) N/A 13.0 ppb (12) N/A N/A N/A 0.14 ppb (2) N/A N/A 14.0
 
May 22, 2019, 6 p.m. 40.1 ppb (37) 19.2 ppb (18) N/A 21.0 ppb (19) N/A N/A N/A 0.18 ppb (2) N/A N/A 37.0
 
May 22, 2019, 5 p.m. 39.8 ppb (37) 20.0 ppb (19) N/A 20.0 ppb (19) N/A N/A N/A 0.19 ppb (2) N/A N/A 37.0
 
May 22, 2019, 4 p.m. 49.4 ppb (46) 26.2 ppb (24) N/A 23.0 ppb (21) N/A N/A N/A 0.23 ppb (3) N/A N/A 46.0
 
May 22, 2019, 3 p.m. 52.4 ppb (49) 28.3 ppb (26) N/A 24.0 ppb (22) N/A N/A N/A 0.25 ppb (3) N/A N/A 49.0
 
May 22, 2019, 2 p.m. 53.7 ppb (50) 27.5 ppb (25) N/A 26.0 ppb (24) N/A N/A N/A 0.29 ppb (3) N/A N/A 50.0
 
May 22, 2019, 1 p.m. 44.4 ppb (41) 16.3 ppb (15) N/A 28.0 ppb (26) N/A N/A N/A 0.25 ppb (3) N/A N/A 41.0
 
May 22, 2019, noon 75.4 ppb (73) 40.0 ppb (37) N/A 35.0 ppb (32) N/A N/A N/A 0.31 ppb (3) N/A N/A 73.0
 
May 22, 2019, 11 a.m. 46.8 ppb (43) 20.1 ppb (19) N/A 27.0 ppb (25) N/A N/A N/A 0.22 ppb (2) N/A N/A 43.0
 
May 22, 2019, 10 a.m. 20.3 ppb (19) 4.8 ppb (4) N/A 16.0 ppb (15) N/A N/A N/A 0.15 ppb (2) N/A N/A 19.0
 
May 22, 2019, 9 a.m. 10.7 ppb (10) 1.1 ppb (1) N/A 10.0 ppb (9) N/A N/A N/A 0.13 ppb (1) N/A N/A 10.0
 
May 22, 2019, 8 a.m. 25.8 ppb (24) 4.2 ppb (4) N/A 22.0 ppb (20) N/A N/A N/A 0.15 ppb (2) N/A N/A 24.0
 
May 22, 2019, 7 a.m. 38.7 ppb (36) 12.9 ppb (12) N/A 26.0 ppb (24) N/A N/A N/A 0.2 ppb (2) N/A N/A 36.0
 
May 22, 2019, 6 a.m. 17.5 ppb (16) 2.4 ppb (2) N/A 15.0 ppb (14) N/A N/A N/A 0.15 ppb (2) N/A N/A 16.0
 
May 22, 2019, 5 a.m. 35.2 ppb (33) 11.5 ppb (11) N/A 24.0 ppb (22) N/A N/A N/A 0.22 ppb (2) N/A N/A 33.0
 
May 22, 2019, 4 a.m. 34.2 ppb (32) 12.4 ppb (11) N/A 22.0 ppb (20) N/A N/A N/A 0.23 ppb (3) N/A N/A 32.0
 
May 22, 2019, 3 a.m. 38.1 ppb (35) 15.2 ppb (14) N/A 23.0 ppb (21) N/A N/A N/A 0.22 ppb (2) N/A N/A 35.0
 
May 22, 2019, 2 a.m. 38.0 ppb (35) 16.3 ppb (15) N/A 22.0 ppb (20) N/A N/A N/A 0.25 ppb (3) N/A N/A 35.0
 
May 22, 2019, 1 a.m. 32.9 ppb (30) 13.3 ppb (12) N/A 20.0 ppb (19) N/A N/A N/A 0.23 ppb (3) N/A N/A 30.0
 
May 22, 2019, midnight 32.9 ppb (30) 12.8 ppb (12) N/A 20.0 ppb (19) N/A N/A N/A 0.23 ppb (3) N/A N/A 30.0
 
May 21, 2019, 11 p.m. 35.8 ppb (33) 15.3 ppb (14) N/A 21.0 ppb (19) N/A N/A N/A 0.24 ppb (3) N/A N/A 33.0
 
May 21, 2019, 10 p.m. 37.0 ppb (34) 16.6 ppb (15) N/A 20.0 ppb (19) N/A N/A N/A 0.23 ppb (3) N/A N/A 34.0
 
May 21, 2019, 9 p.m. 46.2 ppb (43) 20.8 ppb (19) N/A 25.0 ppb (23) N/A N/A N/A 0.25 ppb (3) N/A N/A 43.0
 
May 21, 2019, 8 p.m. 50.1 ppb (46) 22.8 ppb (21) N/A 27.0 ppb (25) N/A N/A N/A 0.25 ppb (3) N/A N/A 46.0
 
May 21, 2019, 7 p.m. 51.8 ppb (48) 26.5 ppb (25) N/A 25.0 ppb (23) N/A N/A N/A 0.23 ppb (3) N/A N/A 48.0
 
May 21, 2019, 6 p.m. 54.2 ppb (50) 26.9 ppb (25) N/A 27.0 ppb (25) N/A N/A N/A 0.25 ppb (3) N/A N/A 50.0
 
May 21, 2019, 5 p.m. 47.5 ppb (44) 23.2 ppb (21) N/A 24.0 ppb (22) N/A N/A N/A 0.21 ppb (2) N/A N/A 44.0
 
May 21, 2019, 4 p.m. 49.7 ppb (46) 23.7 ppb (22) N/A 26.0 ppb (24) N/A N/A N/A 0.22 ppb (2) N/A N/A 46.0
 
May 21, 2019, 3 p.m. 48.2 ppb (45) 23.7 ppb (22) N/A 24.0 ppb (22) N/A N/A N/A 0.23 ppb (3) N/A N/A 45.0
 
May 21, 2019, 2 p.m. 69.5 ppb (66) 36.6 ppb (34) N/A 33.0 ppb (31) N/A N/A N/A 0.34 ppb (4) N/A N/A 66.0
 
May 21, 2019, 1 p.m. 71.8 ppb (69) 36.4 ppb (34) N/A 35.0 ppb (32) N/A N/A N/A 0.35 ppb (4) N/A N/A 69.0
 
May 21, 2019, noon 63.5 ppb (60) 30.2 ppb (28) N/A 33.0 ppb (31) N/A N/A N/A 0.32 ppb (4) N/A N/A 60.0
 
May 21, 2019, 11 a.m. 59.0 ppb (55) 28.4 ppb (26) N/A 31.0 ppb (29) N/A N/A N/A 0.25 ppb (3) N/A N/A 55.0
 
May 21, 2019, 10 a.m. 46.0 ppb (43) 17.1 ppb (16) N/A 29.0 ppb (27) N/A N/A N/A 0.22 ppb (2) N/A N/A 43.0
 
May 21, 2019, 9 a.m. 39.1 ppb (36) 11.4 ppb (11) N/A 28.0 ppb (26) N/A N/A N/A 0.17 ppb (2) N/A N/A 36.0
 
May 21, 2019, 8 a.m. 38.7 ppb (36) 10.2 ppb (9) N/A 28.0 ppb (26) N/A N/A N/A 0.16 ppb (2) N/A N/A 36.0
 
May 21, 2019, 7 a.m. 36.6 ppb (34) 8.3 ppb (8) N/A 28.0 ppb (26) N/A N/A N/A 0.19 ppb (2) N/A N/A 34.0
 
May 21, 2019, 6 a.m. 27.2 ppb (25) 5.6 ppb (5) N/A 22.0 ppb (20) N/A N/A N/A 0.17 ppb (2) N/A N/A 25.0
 
May 21, 2019, 5 a.m. 40.7 ppb (38) 15.3 ppb (14) N/A 25.0 ppb (23) N/A N/A N/A 0.22 ppb (2) N/A N/A 38.0
 
May 21, 2019, 4 a.m. 35.2 ppb (33) 13.4 ppb (12) N/A 22.0 ppb (20) N/A N/A N/A 0.25 ppb (3) N/A N/A 33.0
 
May 21, 2019, 3 a.m. 35.0 ppb (32) 13.1 ppb (12) N/A 22.0 ppb (20) N/A N/A N/A 0.25 ppb (3) N/A N/A 32.0
 
May 21, 2019, 2 a.m. 35.0 ppb (32) 13.4 ppb (12) N/A 22.0 ppb (20) N/A N/A N/A 0.27 ppb (3) N/A N/A 32.0
 
May 21, 2019, 1 a.m. 36.7 ppb (34) 14.2 ppb (13) N/A 23.0 ppb (21) N/A N/A N/A 0.27 ppb (3) N/A N/A 34.0
 
May 21, 2019, midnight 35.7 ppb (33) 13.5 ppb (12) N/A 22.0 ppb (20) N/A N/A N/A 0.25 ppb (3) N/A N/A 33.0
 
May 20, 2019, 11 p.m. 38.7 ppb (36) 14.3 ppb (13) N/A 24.0 ppb (22) N/A N/A N/A 0.26 ppb (3) N/A N/A 36.0
 
May 20, 2019, 10 p.m. 45.2 ppb (42) 17.1 ppb (16) N/A 28.0 ppb (26) N/A N/A N/A 0.28 ppb (3) N/A N/A 42.0
 
May 20, 2019, 9 p.m. 38.6 ppb (36) 14.4 ppb (13) N/A 24.0 ppb (22) N/A N/A N/A 0.24 ppb (3) N/A N/A 36.0
 
May 20, 2019, 8 p.m. 41.0 ppb (38) 17.8 ppb (16) N/A 23.0 ppb (21) N/A N/A N/A 0.24 ppb (3) N/A N/A 38.0
 
May 20, 2019, 7 p.m. 47.7 ppb (44) 22.5 ppb (21) N/A 25.0 ppb (23) N/A N/A N/A 0.25 ppb (3) N/A N/A 44.0
 
May 20, 2019, 6 p.m. 34.6 ppb (32) 14.7 ppb (14) N/A 20.0 ppb (19) N/A N/A N/A 0.19 ppb (2) N/A N/A 32.0
 
May 20, 2019, 5 p.m. 32.8 ppb (30) 15.4 ppb (14) N/A 17.0 ppb (16) N/A N/A N/A 0.18 ppb (2) N/A N/A 30.0
 
May 20, 2019, 4 p.m. 39.8 ppb (37) 19.5 ppb (18) N/A 20.0 ppb (19) N/A N/A N/A 0.2 ppb (2) N/A N/A 37.0
 
May 20, 2019, 3 p.m. 51.4 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
 
May 20, 2019, 2 p.m. 65.3 ppb (62) 31.8 ppb (29) N/A 34.0 ppb (31) N/A N/A N/A 0.33 ppb (4) N/A N/A 62.0
 
May 20, 2019, 1 p.m. 71.1 ppb (68) 34.5 ppb (32) N/A 37.0 ppb (34) N/A N/A N/A 0.33 ppb (4) N/A N/A 68.0
 
May 20, 2019, noon 53.0 ppb (49) 22.2 ppb (21) N/A 31.0 ppb (29) N/A N/A N/A 0.29 ppb (3) N/A N/A 49.0
 
May 20, 2019, 11 a.m. 45.6 ppb (42) 20.7 ppb (19) N/A 25.0 ppb (23) N/A N/A N/A 0.23 ppb (3) N/A N/A 42.0
 
May 20, 2019, 10 a.m. 36.6 ppb (34) 14.9 ppb (14) N/A 22.0 ppb (20) N/A N/A N/A 0.22 ppb (2) N/A N/A 34.0
 
May 20, 2019, 9 a.m. 21.0 ppb (19) 8.4 ppb (8) N/A 13.0 ppb (12) N/A N/A N/A 0.13 ppb (1) N/A N/A 19.0
 
May 20, 2019, 8 a.m. 14.7 ppb (14) 5.1 ppb (5) N/A 10.0 ppb (9) N/A N/A N/A 0.13 ppb (1) N/A N/A 14.0
 
May 20, 2019, 7 a.m. 18.0 ppb (17) 6.6 ppb (6) N/A 11.0 ppb (10) N/A N/A N/A 0.13 ppb (1) N/A N/A 17.0
 
May 20, 2019, 6 a.m. 18.6 ppb (17) 6.9 ppb (6) N/A 12.0 ppb (11) N/A N/A N/A 0.17 ppb (2) N/A N/A 17.0
 
May 20, 2019, 5 a.m. 18.2 ppb (17) 7.3 ppb (7) N/A 11.0 ppb (10) N/A N/A N/A 0.17 ppb (2) N/A N/A 17.0
 
May 20, 2019, 4 a.m. 18.6 ppb (17) 7.3 ppb (7) N/A 11.0 ppb (10) N/A N/A N/A 0.19 ppb (2) N/A N/A 17.0
 
May 20, 2019, 3 a.m. 19.3 ppb (18) 7.0 ppb (6) N/A 12.0 ppb (11) N/A N/A N/A 0.21 ppb (2) N/A N/A 18.0
 
May 20, 2019, 2 a.m. 15.9 ppb (15) 6.1 ppb (6) N/A 10.0 ppb (9) N/A N/A N/A 0.22 ppb (2) N/A N/A 15.0
 
May 20, 2019, 1 a.m. 14.7 ppb (14) 5.5 ppb (5) N/A 9.0 ppb (8) N/A N/A N/A 0.21 ppb (2) N/A N/A 14.0
 
May 20, 2019, midnight 15.2 ppb (14) 5.7 ppb (5) N/A 10.0 ppb (9) N/A N/A N/A 0.23 ppb (3) N/A N/A 14.0
 
May 19, 2019, 11 p.m. 15.2 ppb (14) 6.6 ppb (6) N/A 9.0 ppb (8) N/A N/A N/A 0.22 ppb (2) N/A N/A 14.0
 
May 19, 2019, 10 p.m. 17.9 ppb (17) 7.3 ppb (7) N/A 11.0 ppb (10) N/A N/A N/A 0.24 ppb (3) N/A N/A 17.0
 
May 19, 2019, 9 p.m. 15.1 ppb (14) 6.1 ppb (6) N/A 9.0 ppb (8) N/A N/A N/A 0.19 ppb (2) N/A N/A 14.0
 
May 19, 2019, 8 p.m. 13.9 ppb (13) 5.4 ppb (5) N/A 8.0 ppb (7) N/A N/A N/A 0.18 ppb (2) N/A N/A 13.0
 
May 19, 2019, 7 p.m. 15.5 ppb (14) 6.2 ppb (6) N/A 9.0 ppb (8) N/A N/A N/A 0.18 ppb (2) N/A N/A 14.0
 
May 19, 2019, 6 p.m. 18.8 ppb (17) 8.1 ppb (8) N/A 11.0 ppb (10) N/A N/A N/A 0.18 ppb (2) N/A N/A 17.0
 
May 19, 2019, 5 p.m. 13.9 ppb (13) 4.3 ppb (4) N/A 10.0 ppb (9) N/A N/A N/A 0.16 ppb (2) N/A N/A 13.0
 
May 19, 2019, 4 p.m. 7.8 ppb (7) 1.7 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A 0.11 ppb (1) N/A N/A 7.0
 
May 19, 2019, 3 p.m. 7.4 ppb (7) 1.1 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.11 ppb (1) N/A N/A 7.0
 
May 19, 2019, 2 p.m. 15.3 ppb (14) 2.5 ppb (2) N/A 13.0 ppb (12) N/A N/A N/A 0.13 ppb (1) N/A N/A 14.0
 
May 19, 2019, 1 p.m. 16.4 ppb (15) 3.0 ppb (3) N/A 13.0 ppb (12) N/A N/A N/A 0.16 ppb (2) N/A N/A 15.0
 
May 19, 2019, noon 20.7 ppb (19) 3.9 ppb (4) N/A 17.0 ppb (16) N/A N/A N/A 0.17 ppb (2) N/A N/A 19.0
 
May 19, 2019, 11 a.m. 14.3 ppb (13) 3.9 ppb (4) N/A 10.0 ppb (9) N/A N/A N/A 0.12 ppb (1) N/A N/A 13.0
 
May 19, 2019, 10 a.m. 17.0 ppb (16) 4.2 ppb (4) N/A 13.0 ppb (12) N/A N/A N/A 0.14 ppb (2) N/A N/A 16.0
 
May 19, 2019, 9 a.m. 9.0 ppb (8) 1.2 ppb (1) N/A 8.0 ppb (7) N/A N/A N/A 0.14 ppb (2) N/A N/A 8.0
 
May 19, 2019, 8 a.m. 11.5 ppb (11) 2.9 ppb (3) N/A 9.0 ppb (8) N/A N/A N/A 0.16 ppb (2) N/A N/A 11.0
 
May 19, 2019, 7 a.m. 15.8 ppb (15) 2.5 ppb (2) N/A 13.0 ppb (12) N/A N/A N/A 0.21 ppb (2) N/A N/A 15.0
 
May 19, 2019, 6 a.m. 11.8 ppb (11) 1.4 ppb (1) N/A 10.0 ppb (9) N/A N/A N/A 0.18 ppb (2) N/A N/A 11.0
 
May 19, 2019, 5 a.m. 18.9 ppb (18) 4.7 ppb (4) N/A 14.0 ppb (13) N/A N/A N/A 0.27 ppb (3) N/A N/A 18.0
 
May 19, 2019, 4 a.m. 19.6 ppb (18) 5.5 ppb (5) N/A 14.0 ppb (13) N/A N/A N/A 0.24 ppb (3) N/A N/A 18.0
 
May 19, 2019, 3 a.m. 23.1 ppb (21) 7.0 ppb (6) N/A 16.0 ppb (15) N/A N/A N/A 0.26 ppb (3) N/A N/A 21.0
 
May 19, 2019, 2 a.m. 22.5 ppb (21) 6.6 ppb (6) N/A 16.0 ppb (15) N/A N/A N/A 0.3 ppb (3) N/A N/A 21.0
 
May 19, 2019, 1 a.m. 21.1 ppb (20) 5.5 ppb (5) N/A 16.0 ppb (15) N/A N/A N/A 0.29 ppb (3) N/A N/A 20.0
 
May 19, 2019, midnight 22.3 ppb (21) 6.5 ppb (6) N/A 16.0 ppb (15) N/A N/A N/A 0.31 ppb (3) N/A N/A 21.0
 
May 18, 2019, 11 p.m. 22.5 ppb (21) 7.5 ppb (7) N/A 15.0 ppb (14) N/A N/A N/A 0.31 ppb (3) N/A N/A 21.0
 
May 18, 2019, 10 p.m. 22.4 ppb (21) 6.8 ppb (6) N/A 16.0 ppb (15) N/A N/A N/A 0.31 ppb (3) N/A N/A 21.0
 
May 18, 2019, 9 p.m. 19.4 ppb (18) 5.6 ppb (5) N/A 14.0 ppb (13) N/A N/A N/A 0.26 ppb (3) N/A N/A 18.0
 
May 18, 2019, 8 p.m. 14.9 ppb (14) 4.3 ppb (4) N/A 11.0 ppb (10) N/A N/A N/A 0.22 ppb (2) N/A N/A 14.0
 
May 18, 2019, 7 p.m. 20.9 ppb (19) 7.5 ppb (7) N/A 13.0 ppb (12) N/A N/A N/A 0.24 ppb (3) N/A N/A 19.0
 
May 18, 2019, 6 p.m. 21.1 ppb (20) 7.3 ppb (7) N/A 14.0 ppb (13) N/A N/A N/A 0.25 ppb (3) N/A N/A 20.0
 
May 18, 2019, 5 p.m. 26.9 ppb (25) 9.8 ppb (9) N/A 17.0 ppb (16) N/A N/A N/A 0.27 ppb (3) N/A N/A 25.0