AQSQID: 060712002

Site Name: Fontana - Arrow Highway

Location: Fontana (W End), CA

Reporting: True, Located: True

Current AQI: 27.0

Fontana (W End) CA, US: 34.100132, -117.491982

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 29, 2020, 5 p.m. 7.1 ppb (7) 1.4 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 35.0 ppb (27) 0.09 ppb (1) N/A N/A 27.0
 
Jan. 29, 2020, 4 p.m. 7.2 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 34.0 ppb (26) 0.1 ppb (1) N/A N/A 26.0
 
Jan. 29, 2020, 3 p.m. 8.2 ppb (8) 0.4 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 33.0 ppb (25) 0.1 ppb (1) N/A N/A 25.0
 
Jan. 29, 2020, 2 p.m. 34.3 ppb (32) 9.5 ppb (9) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 17.0 ppb (13) 0.29 ppb (3) N/A N/A 32.0
 
Jan. 29, 2020, 1 p.m. 53.7 ppb (50) 18.0 ppb (17) N/A 36.0 ppb (33) N/A 0.0 ppb (0) 2.0 ppb (2) 0.44 ppb (5) N/A N/A 50.0
 
Jan. 29, 2020, noon 40.9 ppb (38) 7.1 ppb (7) N/A 34.0 ppb (31) N/A 0.0 ppb (0) 4.0 ppb (3) 0.34 ppb (4) N/A N/A 38.0
 
Jan. 29, 2020, 11 a.m. 34.0 ppb (31) 2.7 ppb (3) N/A 31.0 ppb (29) N/A 0.0 ppb (0) 5.0 ppb (4) 0.26 ppb (3) N/A N/A 31.0
 
Jan. 29, 2020, 10 a.m. 36.2 ppb (34) 3.6 ppb (3) N/A 33.0 ppb (31) N/A 0.0 ppb (0) 4.0 ppb (3) 0.27 ppb (3) N/A N/A 34.0
 
Jan. 29, 2020, 9 a.m. 57.9 ppb (54) 21.0 ppb (19) N/A 37.0 ppb (34) N/A 0.0 ppb (0) 2.0 ppb (2) 0.48 ppb (5) N/A N/A 54.0
 
Jan. 29, 2020, 8 a.m. 57.5 ppb (54) 23.0 ppb (21) N/A 35.0 ppb (32) N/A 0.0 ppb (0) 2.0 ppb (2) 0.52 ppb (6) N/A N/A 54.0
 
Jan. 29, 2020, 7 a.m. 37.2 ppb (34) 4.1 ppb (4) N/A 33.0 ppb (31) N/A 0.0 ppb (0) 4.0 ppb (3) 0.41 ppb (5) N/A N/A 34.0
 
Jan. 29, 2020, 6 a.m. 39.2 ppb (36) 4.4 ppb (4) N/A 35.0 ppb (32) N/A 0.0 ppb (0) 4.0 ppb (3) 0.41 ppb (5) N/A N/A 36.0
 
Jan. 29, 2020, 5 a.m. 54.8 ppb (51) 14.7 ppb (14) N/A 40.0 ppb (37) N/A 0.0 ppb (0) 2.0 ppb (2) 0.56 ppb (6) N/A N/A 51.0
 
Jan. 29, 2020, 4 a.m. 47.2 ppb (44) 7.4 ppb (7) N/A 40.0 ppb (37) N/A 1.0 ppb (1) 4.0 ppb (3) 0.48 ppb (5) N/A N/A 44.0
 
Jan. 29, 2020, 3 a.m. 42.2 ppb (39) 1.3 ppb (1) N/A 41.0 ppb (38) N/A 1.0 ppb (1) 9.0 ppb (7) 0.42 ppb (5) N/A N/A 39.0
 
Jan. 29, 2020, 2 a.m. 41.4 ppb (38) 0.6 ppb (1) N/A 41.0 ppb (38) N/A 1.0 ppb (1) 15.0 ppb (12) 0.43 ppb (5) N/A N/A 38.0
 
Jan. 29, 2020, 1 a.m. 50.7 ppb (47) 4.5 ppb (4) N/A 46.0 ppb (43) N/A 0.0 ppb (0) 12.0 ppb (9) 0.37 ppb (4) N/A N/A 47.0
 
Jan. 29, 2020, midnight 26.0 ppb (24) 1.5 ppb (1) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 31.0 ppb (24) 0.25 ppb (3) N/A N/A 24.0
 
Jan. 28, 2020, 11 p.m. 23.2 ppb (21) 3.6 ppb (3) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 33.0 ppb (25) 0.21 ppb (2) N/A N/A 25.0
 
Jan. 28, 2020, 10 p.m. 16.2 ppb (15) 2.8 ppb (3) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 40.0 ppb (31) 0.14 ppb (2) N/A N/A 31.0
 
Jan. 28, 2020, 9 p.m. 21.3 ppb (20) 4.6 ppb (4) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 36.0 ppb (28) 0.14 ppb (2) N/A N/A 28.0
 
Jan. 28, 2020, 8 p.m. 45.6 ppb (42) 16.0 ppb (15) N/A 30.0 ppb (28) N/A 1.0 ppb (1) 25.0 ppb (19) 0.24 ppb (3) N/A N/A 42.0
 
Jan. 28, 2020, 7 p.m. 36.0 ppb (33) 11.7 ppb (11) N/A 24.0 ppb (22) N/A 1.0 ppb (1) 28.0 ppb (22) 0.28 ppb (3) N/A N/A 33.0
 
Jan. 28, 2020, 6 p.m. 48.8 ppb (45) 19.1 ppb (18) N/A 30.0 ppb (28) N/A 1.0 ppb (1) 20.0 ppb (15) 0.39 ppb (4) N/A N/A 45.0
 
Jan. 28, 2020, 5 p.m. 36.8 ppb (34) 12.5 ppb (12) N/A 24.0 ppb (22) N/A 0.0 ppb (0) 20.0 ppb (15) 0.38 ppb (4) N/A N/A 34.0
 
Jan. 28, 2020, 4 p.m. 68.5 ppb (65) 35.6 ppb (33) N/A 33.0 ppb (31) N/A 1.0 ppb (1) 9.0 ppb (7) 0.64 ppb (7) N/A N/A 65.0
 
Jan. 28, 2020, 3 p.m. 95.5 ppb (94) 61.2 ppb (58) N/A 35.0 ppb (32) N/A 1.0 ppb (1) 3.0 ppb (2) 0.8 ppb (9) N/A N/A 94.0
 
Jan. 28, 2020, 2 p.m. 75.8 ppb (73) 42.8 ppb (40) N/A 33.0 ppb (31) N/A 1.0 ppb (1) 2.0 ppb (2) 0.73 ppb (8) N/A N/A 73.0
 
Jan. 28, 2020, 1 p.m. 65.8 ppb (63) 34.5 ppb (32) N/A 31.0 ppb (29) N/A 0.0 ppb (0) 2.0 ppb (2) 0.64 ppb (7) N/A N/A 63.0
 
Jan. 28, 2020, noon 53.5 ppb (50) 22.0 ppb (20) N/A 32.0 ppb (30) N/A 0.0 ppb (0) 2.0 ppb (2) 0.56 ppb (6) N/A N/A 50.0
 
Jan. 28, 2020, 11 a.m. 46.2 ppb (43) 12.1 ppb (11) N/A 34.0 ppb (31) N/A 0.0 ppb (0) 2.0 ppb (2) 0.44 ppb (5) N/A N/A 43.0
 
Jan. 28, 2020, 10 a.m. 48.1 ppb (45) 11.7 ppb (11) N/A 37.0 ppb (34) N/A 0.0 ppb (0) 3.0 ppb (2) 0.47 ppb (5) N/A N/A 45.0
 
Jan. 28, 2020, 9 a.m. 41.5 ppb (38) 4.0 ppb (4) N/A 38.0 ppb (35) N/A 0.0 ppb (0) 3.0 ppb (2) 0.42 ppb (5) N/A N/A 38.0
 
Jan. 28, 2020, 8 a.m. 48.1 ppb (45) 8.2 ppb (8) N/A 40.0 ppb (37) N/A 0.0 ppb (0) 3.0 ppb (2) 0.52 ppb (6) N/A N/A 45.0
 
Jan. 28, 2020, 7 a.m. 62.2 ppb (59) 23.8 ppb (22) N/A 39.0 ppb (36) N/A 0.0 ppb (0) 2.0 ppb (2) 0.61 ppb (7) N/A N/A 59.0
 
Jan. 28, 2020, 6 a.m. 47.7 ppb (44) 10.6 ppb (10) N/A 37.0 ppb (34) N/A 0.0 ppb (0) 3.0 ppb (2) 0.44 ppb (5) N/A N/A 44.0
 
Jan. 28, 2020, 5 a.m. 50.0 ppb (46) 8.3 ppb (8) N/A 42.0 ppb (39) N/A 0.0 ppb (0) 5.0 ppb (4) 0.41 ppb (5) N/A N/A 46.0
 
Jan. 28, 2020, 4 a.m. 68.5 ppb (65) 23.8 ppb (22) N/A 45.0 ppb (42) N/A 1.0 ppb (1) 4.0 ppb (3) 0.55 ppb (6) N/A N/A 65.0
 
Jan. 28, 2020, 3 a.m. 84.2 ppb (82) 31.6 ppb (29) N/A 53.0 ppb (49) N/A 1.0 ppb (1) 2.0 ppb (2) 0.58 ppb (6) N/A N/A 82.0
 
Jan. 28, 2020, 2 a.m. 64.0 ppb (61) 17.2 ppb (16) N/A 47.0 ppb (44) N/A 0.0 ppb (0) 4.0 ppb (3) 0.65 ppb (7) N/A N/A 61.0
 
Jan. 28, 2020, 1 a.m. 28.7 ppb (27) 1.0 ppb (1) N/A 28.0 ppb (26) N/A 0.0 ppb (0) 23.0 ppb (18) 0.3 ppb (3) N/A N/A 27.0
 
Jan. 28, 2020, midnight 12.8 ppb (12) -0.2 ppb (0) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 40.0 ppb (31) 0.15 ppb (2) N/A N/A 31.0
 
Jan. 27, 2020, 11 p.m. 18.0 ppb (17) 1.5 ppb (1) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 40.0 ppb (31) 0.18 ppb (2) N/A N/A 31.0
 
Jan. 27, 2020, 10 p.m. 20.2 ppb (19) 2.6 ppb (2) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 40.0 ppb (31) 0.2 ppb (2) N/A N/A 31.0
 
Jan. 27, 2020, 9 p.m. 38.4 ppb (36) 9.5 ppb (9) N/A 29.0 ppb (27) N/A 0.0 ppb (0) 31.0 ppb (24) 0.33 ppb (4) N/A N/A 36.0
 
Jan. 27, 2020, 8 p.m. 42.3 ppb (39) 12.3 ppb (11) N/A 30.0 ppb (28) N/A 1.0 ppb (1) 27.0 ppb (21) 0.34 ppb (4) N/A N/A 39.0
 
Jan. 27, 2020, 7 p.m. 46.5 ppb (43) 14.3 ppb (13) N/A 32.0 ppb (30) N/A 1.0 ppb (1) 22.0 ppb (17) 0.33 ppb (4) N/A N/A 43.0
 
Jan. 27, 2020, 6 p.m. 42.4 ppb (39) 13.3 ppb (12) N/A 29.0 ppb (27) N/A 0.0 ppb (0) 23.0 ppb (18) 0.35 ppb (4) N/A N/A 39.0
 
Jan. 27, 2020, 5 p.m. 42.7 ppb (40) 14.7 ppb (14) N/A 28.0 ppb (26) N/A 0.0 ppb (0) 21.0 ppb (16) 0.4 ppb (4) N/A N/A 40.0
 
Jan. 27, 2020, 4 p.m. 103.7 ppb (101) 64.4 ppb (61) N/A 40.0 ppb (37) N/A 1.0 ppb (1) 7.0 ppb (5) 0.59 ppb (7) N/A N/A 101.0
 
Jan. 27, 2020, 3 p.m. 81.0 ppb (79) 46.4 ppb (43) N/A 35.0 ppb (32) N/A 0.0 ppb (0) 3.0 ppb (2) 0.62 ppb (7) N/A N/A 79.0
 
Jan. 27, 2020, 2 p.m. 33.0 ppb (31) 3.4 ppb (3) N/A 30.0 ppb (28) N/A 0.0 ppb (0) 4.0 ppb (3) 0.56 ppb (6) N/A N/A 31.0
 
Jan. 27, 2020, 1 p.m. 26.8 ppb (25) 0.8 ppb (1) N/A 26.0 ppb (24) N/A 0.0 ppb (0) 9.0 ppb (7) 0.43 ppb (5) N/A N/A 25.0
 
Jan. 27, 2020, noon 27.0 ppb (25) 1.1 ppb (1) N/A 26.0 ppb (24) N/A 0.0 ppb (0) 10.0 ppb (8) 0.36 ppb (4) N/A N/A 25.0
 
Jan. 27, 2020, 11 a.m. 18.1 ppb (17) 0.0 ppb (0) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 22.0 ppb (17) 0.29 ppb (3) N/A N/A 17.0
 
Jan. 27, 2020, 10 a.m. 18.1 ppb (17) -0.4 ppb (0) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 24.0 ppb (18) 0.31 ppb (3) N/A N/A 18.0
 
Jan. 27, 2020, 9 a.m. 21.5 ppb (20) -0.5 ppb (0) N/A 22.0 ppb (20) N/A 0.0 ppb (0) 21.0 ppb (16) 0.34 ppb (4) N/A N/A 20.0
 
Jan. 27, 2020, 8 a.m. 17.4 ppb (16) -0.6 ppb (0) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 25.0 ppb (19) 0.35 ppb (4) N/A N/A 19.0
 
Jan. 27, 2020, 7 a.m. 17.3 ppb (16) -0.5 ppb (0) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 30.0 ppb (23) 0.34 ppb (4) N/A N/A 23.0
 
Jan. 27, 2020, 6 a.m. 23.1 ppb (21) -0.1 ppb (0) N/A 23.0 ppb (21) N/A 0.0 ppb (0) 21.0 ppb (16) 0.4 ppb (4) N/A N/A 21.0
 
Jan. 27, 2020, 5 a.m. 26.6 ppb (25) -0.3 ppb (0) N/A 27.0 ppb (25) N/A 0.0 ppb (0) 18.0 ppb (14) 0.36 ppb (4) N/A N/A 25.0
 
Jan. 27, 2020, 4 a.m. 26.8 ppb (25) -0.3 ppb (0) N/A 27.0 ppb (25) N/A 0.0 ppb (0) 20.0 ppb (15) 0.34 ppb (4) N/A N/A 25.0
 
Jan. 27, 2020, 3 a.m. 21.1 ppb (20) -0.1 ppb (0) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 26.0 ppb (20) 0.3 ppb (3) N/A N/A 20.0
 
Jan. 27, 2020, 2 a.m. 23.0 ppb (21) -0.1 ppb (0) N/A 23.0 ppb (21) N/A 0.0 ppb (0) 24.0 ppb (18) 0.35 ppb (4) N/A N/A 21.0
 
Jan. 27, 2020, 1 a.m. 19.3 ppb (18) -0.3 ppb (0) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 31.0 ppb (24) 0.32 ppb (4) N/A N/A 24.0
 
Jan. 27, 2020, midnight 17.8 ppb (16) 0.2 ppb (0) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 34.0 ppb (26) 0.32 ppb (4) N/A N/A 26.0
 
Jan. 26, 2020, 11 p.m. 15.4 ppb (14) 1.0 ppb (1) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 37.0 ppb (28) 0.31 ppb (3) N/A N/A 28.0
 
Jan. 26, 2020, 10 p.m. 23.5 ppb (22) 4.4 ppb (4) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 34.0 ppb (26) 0.4 ppb (4) N/A N/A 26.0
 
Jan. 26, 2020, 9 p.m. 27.3 ppb (25) 7.3 ppb (7) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 27.0 ppb (21) 0.43 ppb (5) N/A N/A 25.0
 
Jan. 26, 2020, 8 p.m. 40.7 ppb (38) 17.0 ppb (16) N/A 24.0 ppb (22) N/A 0.0 ppb (0) 20.0 ppb (15) 0.53 ppb (6) N/A N/A 38.0
 
Jan. 26, 2020, 7 p.m. 49.1 ppb (45) 21.5 ppb (20) N/A 28.0 ppb (26) N/A 0.0 ppb (0) 13.0 ppb (10) 0.62 ppb (7) N/A N/A 45.0
 
Jan. 26, 2020, 6 p.m. 43.6 ppb (40) 19.2 ppb (18) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 10.0 ppb (8) 0.54 ppb (6) N/A N/A 40.0
 
Jan. 26, 2020, 5 p.m. 40.6 ppb (38) 16.1 ppb (15) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 7.0 ppb (5) 0.53 ppb (6) N/A N/A 38.0
 
Jan. 26, 2020, 4 p.m. 37.7 ppb (35) 13.4 ppb (12) N/A 24.0 ppb (22) N/A 0.0 ppb (0) 5.0 ppb (4) 0.49 ppb (5) N/A N/A 35.0
 
Jan. 26, 2020, 3 p.m. 42.5 ppb (39) 17.7 ppb (16) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 3.0 ppb (2) 0.55 ppb (6) N/A N/A 39.0
 
Jan. 26, 2020, 2 p.m. 50.0 ppb (46) 25.5 ppb (24) N/A 25.0 ppb (23) N/A 1.0 ppb (1) 2.0 ppb (2) 0.57 ppb (6) N/A N/A 46.0
 
Jan. 26, 2020, 1 p.m. 43.9 ppb (41) 19.1 ppb (18) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 2.0 ppb (2) 0.57 ppb (6) N/A N/A 41.0
 
Jan. 26, 2020, noon 49.1 ppb (45) 26.2 ppb (24) N/A 23.0 ppb (21) N/A 0.0 ppb (0) 2.0 ppb (2) 0.62 ppb (7) N/A N/A 45.0
 
Jan. 26, 2020, 11 a.m. 45.1 ppb (42) 24.2 ppb (22) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 2.0 ppb (2) 0.69 ppb (8) N/A N/A 42.0
 
Jan. 26, 2020, 10 a.m. 42.8 ppb (40) 19.4 ppb (18) N/A 23.0 ppb (21) N/A 0.0 ppb (0) 2.0 ppb (2) 0.7 ppb (8) N/A N/A 40.0
 
Jan. 26, 2020, 9 a.m. 39.6 ppb (37) 14.5 ppb (13) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 2.0 ppb (2) 0.69 ppb (8) N/A N/A 37.0
 
Jan. 26, 2020, 8 a.m. 50.3 ppb (47) 21.5 ppb (20) N/A 29.0 ppb (27) N/A 0.0 ppb (0) 2.0 ppb (2) 0.87 ppb (10) N/A N/A 47.0
 
Jan. 26, 2020, 7 a.m. 54.2 ppb (50) 21.9 ppb (20) N/A 32.0 ppb (30) N/A 0.0 ppb (0) 2.0 ppb (2) 0.81 ppb (9) N/A N/A 50.0
 
Jan. 26, 2020, 6 a.m. 50.5 ppb (47) 18.1 ppb (17) N/A 33.0 ppb (31) N/A 0.0 ppb (0) 2.0 ppb (2) 0.78 ppb (9) N/A N/A 47.0
 
Jan. 26, 2020, 5 a.m. 34.9 ppb (32) 2.1 ppb (2) N/A 33.0 ppb (31) N/A 0.0 ppb (0) 6.0 ppb (5) 0.53 ppb (6) N/A N/A 32.0
 
Jan. 26, 2020, 4 a.m. 27.4 ppb (25) 0.5 ppb (0) N/A 27.0 ppb (25) N/A 0.0 ppb (0) 15.0 ppb (12) 0.41 ppb (5) N/A N/A 25.0
 
Jan. 26, 2020, 3 a.m. 46.6 ppb (43) 2.4 ppb (2) N/A 44.0 ppb (41) N/A 0.0 ppb (0) 9.0 ppb (7) 0.61 ppb (7) N/A N/A 43.0
 
Jan. 26, 2020, 2 a.m. 49.5 ppb (46) 1.8 ppb (2) N/A 48.0 ppb (44) N/A 0.0 ppb (0) 9.0 ppb (7) 0.65 ppb (7) N/A N/A 46.0
 
Jan. 26, 2020, 1 a.m. 37.2 ppb (34) 0.7 ppb (1) N/A 37.0 ppb (34) N/A 0.0 ppb (0) 20.0 ppb (15) 0.49 ppb (5) N/A N/A 34.0
 
Jan. 26, 2020, midnight 25.5 ppb (24) 1.0 ppb (1) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 31.0 ppb (24) 0.33 ppb (4) N/A N/A 24.0
 
Jan. 25, 2020, 11 p.m. 16.4 ppb (15) 1.2 ppb (1) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 39.0 ppb (30) 0.19 ppb (2) N/A N/A 30.0
 
Jan. 25, 2020, 10 p.m. 18.0 ppb (17) 2.8 ppb (3) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 39.0 ppb (30) 0.19 ppb (2) N/A N/A 30.0
 
Jan. 25, 2020, 9 p.m. 27.7 ppb (26) 6.7 ppb (6) N/A 21.0 ppb (19) N/A 1.0 ppb (1) 32.0 ppb (25) 0.28 ppb (3) N/A N/A 26.0
 
Jan. 25, 2020, 8 p.m. 35.3 ppb (33) 10.7 ppb (10) N/A 25.0 ppb (23) N/A 1.0 ppb (1) 28.0 ppb (22) 0.3 ppb (3) N/A N/A 33.0
 
Jan. 25, 2020, 7 p.m. 41.4 ppb (38) 14.6 ppb (14) N/A 27.0 ppb (25) N/A 1.0 ppb (1) 24.0 ppb (18) 0.46 ppb (5) N/A N/A 38.0
 
Jan. 25, 2020, 6 p.m. 30.1 ppb (28) 9.4 ppb (9) N/A 21.0 ppb (19) N/A 1.0 ppb (1) 26.0 ppb (20) 0.41 ppb (5) N/A N/A 28.0
 
Jan. 25, 2020, 5 p.m. 33.0 ppb (31) 11.6 ppb (11) N/A 22.0 ppb (20) N/A 0.0 ppb (0) 20.0 ppb (15) 0.34 ppb (4) N/A N/A 31.0
 
Jan. 25, 2020, 4 p.m. 56.3 ppb (52) 28.0 ppb (26) N/A 29.0 ppb (27) N/A 1.0 ppb (1) 10.0 ppb (8) 0.53 ppb (6) N/A N/A 52.0
 
Jan. 25, 2020, 3 p.m. 82.7 ppb (81) 52.3 ppb (48) N/A 31.0 ppb (29) N/A 1.0 ppb (1) 3.0 ppb (2) 0.88 ppb (10) N/A N/A 81.0
 
Jan. 25, 2020, 2 p.m. 57.3 ppb (54) 28.3 ppb (26) N/A 29.0 ppb (27) N/A 0.0 ppb (0) 3.0 ppb (2) 0.66 ppb (7) N/A N/A 54.0
 
Jan. 25, 2020, 1 p.m. 40.0 ppb (37) 10.8 ppb (10) N/A 29.0 ppb (27) N/A 0.0 ppb (0) 2.0 ppb (2) 0.45 ppb (5) N/A N/A 37.0
 
Jan. 25, 2020, noon 37.5 ppb (35) 8.8 ppb (8) N/A 29.0 ppb (27) N/A 0.0 ppb (0) 3.0 ppb (2) 0.46 ppb (5) N/A N/A 35.0
 
Jan. 25, 2020, 11 a.m. 42.8 ppb (40) 11.0 ppb (10) N/A 32.0 ppb (30) N/A 0.0 ppb (0) 2.0 ppb (2) 0.49 ppb (5) N/A N/A 40.0
 
Jan. 25, 2020, 10 a.m. 40.2 ppb (37) 7.7 ppb (7) N/A 33.0 ppb (31) N/A 0.0 ppb (0) 4.0 ppb (3) 0.52 ppb (6) N/A N/A 37.0
 
Jan. 25, 2020, 9 a.m. 36.9 ppb (34) 2.5 ppb (2) N/A 35.0 ppb (32) N/A 0.0 ppb (0) 5.0 ppb (4) 0.4 ppb (4) N/A N/A 34.0
 
Jan. 25, 2020, 8 a.m. 53.9 ppb (50) 18.8 ppb (17) N/A 35.0 ppb (32) N/A 0.0 ppb (0) 3.0 ppb (2) 0.59 ppb (7) N/A N/A 50.0
 
Jan. 25, 2020, 7 a.m. 73.7 ppb (71) 38.5 ppb (36) N/A 35.0 ppb (32) N/A 1.0 ppb (1) 2.0 ppb (2) 0.84 ppb (9) N/A N/A 71.0
 
Jan. 25, 2020, 6 a.m. 68.8 ppb (66) 31.7 ppb (29) N/A 37.0 ppb (34) N/A 1.0 ppb (1) 2.0 ppb (2) 0.76 ppb (8) N/A N/A 66.0
 
Jan. 25, 2020, 5 a.m. 75.4 ppb (73) 35.3 ppb (33) N/A 40.0 ppb (37) N/A 1.0 ppb (1) 3.0 ppb (2) 0.94 ppb (10) N/A N/A 73.0
 
Jan. 25, 2020, 4 a.m. 78.2 ppb (76) 38.7 ppb (36) N/A 40.0 ppb (37) N/A 1.0 ppb (1) 3.0 ppb (2) 0.92 ppb (10) N/A N/A 76.0
 
Jan. 25, 2020, 3 a.m. 55.4 ppb (51) 11.0 ppb (10) N/A 45.0 ppb (42) N/A 0.0 ppb (0) 3.0 ppb (2) 0.59 ppb (7) N/A N/A 51.0
 
Jan. 25, 2020, 2 a.m. 56.3 ppb (52) 6.2 ppb (6) N/A 50.0 ppb (46) N/A 0.0 ppb (0) 5.0 ppb (4) 0.51 ppb (6) N/A N/A 52.0
 
Jan. 25, 2020, 1 a.m. 49.6 ppb (46) 3.2 ppb (3) N/A 47.0 ppb (44) N/A 1.0 ppb (1) 11.0 ppb (8) 0.45 ppb (5) N/A N/A 46.0
 
Jan. 25, 2020, midnight 30.3 ppb (28) 1.5 ppb (1) N/A 29.0 ppb (27) N/A 0.0 ppb (0) 28.0 ppb (22) 0.31 ppb (3) N/A N/A 28.0
 
Jan. 24, 2020, 11 p.m. 24.3 ppb (23) 3.0 ppb (3) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 34.0 ppb (26) 0.21 ppb (2) N/A N/A 26.0
 
Jan. 24, 2020, 10 p.m. 22.8 ppb (21) 4.4 ppb (4) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 35.0 ppb (27) 0.18 ppb (2) N/A N/A 27.0
 
Jan. 24, 2020, 9 p.m. 19.9 ppb (18) 4.2 ppb (4) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 39.0 ppb (30) 0.17 ppb (2) N/A N/A 30.0
 
Jan. 24, 2020, 8 p.m. 47.2 ppb (44) 17.4 ppb (16) N/A 30.0 ppb (28) N/A 1.0 ppb (1) 25.0 ppb (19) 0.26 ppb (3) N/A N/A 44.0
 
Jan. 24, 2020, 7 p.m. 47.9 ppb (44) 20.0 ppb (19) N/A 28.0 ppb (26) N/A 0.0 ppb (0) 22.0 ppb (17) 0.37 ppb (4) N/A N/A 44.0
 
Jan. 24, 2020, 6 p.m. 55.6 ppb (52) 25.8 ppb (24) N/A 30.0 ppb (28) N/A 1.0 ppb (1) 20.0 ppb (15) 0.36 ppb (4) N/A N/A 52.0
 
Jan. 24, 2020, 5 p.m. 72.1 ppb (69) 38.9 ppb (36) N/A 33.0 ppb (31) N/A 1.0 ppb (1) 13.0 ppb (10) 0.61 ppb (7) N/A N/A 69.0
 
Jan. 24, 2020, 4 p.m. 94.5 ppb (93) 58.3 ppb (55) N/A 36.0 ppb (33) N/A 1.0 ppb (1) 5.0 ppb (4) 0.92 ppb (10) N/A N/A 93.0
 
Jan. 24, 2020, 3 p.m. 90.8 ppb (89) 56.1 ppb (52) N/A 35.0 ppb (32) N/A 1.0 ppb (1) 3.0 ppb (2) 0.9 ppb (10) N/A N/A 89.0
 
Jan. 24, 2020, 2 p.m. 73.7 ppb (71) 39.1 ppb (36) N/A 35.0 ppb (32) N/A 1.0 ppb (1) 2.0 ppb (2) 0.68 ppb (8) N/A N/A 71.0
 
Jan. 24, 2020, 1 p.m. 51.7 ppb (48) 18.5 ppb (17) N/A 33.0 ppb (31) N/A 0.0 ppb (0) 2.0 ppb (2) 0.47 ppb (5) N/A N/A 48.0
 
Jan. 24, 2020, noon 43.0 ppb (40) 11.6 ppb (11) N/A 32.0 ppb (30) N/A 0.0 ppb (0) 3.0 ppb (2) 0.42 ppb (5) N/A N/A 40.0
 
Jan. 24, 2020, 11 a.m. 39.5 ppb (37) 7.2 ppb (7) N/A 32.0 ppb (30) N/A 0.0 ppb (0) 3.0 ppb (2) 0.35 ppb (4) N/A N/A 37.0
 
Jan. 24, 2020, 10 a.m. 46.2 ppb (43) 12.2 ppb (11) N/A 34.0 ppb (31) N/A 0.0 ppb (0) 2.0 ppb (2) 0.42 ppb (5) N/A N/A 43.0
 
Jan. 24, 2020, 9 a.m. 48.1 ppb (45) 14.1 ppb (13) N/A 34.0 ppb (31) N/A 0.0 ppb (0) 2.0 ppb (2) 0.52 ppb (6) N/A N/A 45.0
 
Jan. 24, 2020, 8 a.m. 50.9 ppb (47) 14.8 ppb (14) N/A 36.0 ppb (33) N/A 0.0 ppb (0) 2.0 ppb (2) 0.51 ppb (6) N/A N/A 47.0
 
Jan. 24, 2020, 7 a.m. 58.8 ppb (55) 20.2 ppb (19) N/A 39.0 ppb (36) N/A 0.0 ppb (0) 2.0 ppb (2) 0.55 ppb (6) N/A N/A 55.0
 
Jan. 24, 2020, 6 a.m. 65.6 ppb (62) 28.2 ppb (26) N/A 38.0 ppb (35) N/A 1.0 ppb (1) 2.0 ppb (2) 0.63 ppb (7) N/A N/A 62.0
 
Jan. 24, 2020, 5 a.m. 76.9 ppb (74) 36.2 ppb (34) N/A 41.0 ppb (38) N/A 1.0 ppb (1) 3.0 ppb (2) 0.82 ppb (9) N/A N/A 74.0
 
Jan. 24, 2020, 4 a.m. 79.1 ppb (77) 40.0 ppb (37) N/A 39.0 ppb (36) N/A 1.0 ppb (1) 3.0 ppb (2) 0.9 ppb (10) N/A N/A 77.0
 
Jan. 24, 2020, 3 a.m. 64.1 ppb (61) 24.7 ppb (23) N/A 40.0 ppb (37) N/A 0.0 ppb (0) 2.0 ppb (2) 0.69 ppb (8) N/A N/A 61.0
 
Jan. 24, 2020, 2 a.m. 51.8 ppb (48) 7.9 ppb (7) N/A 44.0 ppb (41) N/A 1.0 ppb (1) 5.0 ppb (4) 0.55 ppb (6) N/A N/A 48.0
 
Jan. 24, 2020, 1 a.m. 47.2 ppb (44) 4.6 ppb (4) N/A 43.0 ppb (40) N/A 1.0 ppb (1) 15.0 ppb (12) 0.62 ppb (7) N/A N/A 44.0
 
Jan. 24, 2020, midnight 26.1 ppb (24) 1.5 ppb (1) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 29.0 ppb (22) 0.28 ppb (3) N/A N/A 24.0
 
Jan. 23, 2020, 11 p.m. 12.5 ppb (12) 1.2 ppb (1) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 39.0 ppb (30) 0.14 ppb (2) N/A N/A 30.0
 
Jan. 23, 2020, 10 p.m. 11.9 ppb (11) 1.6 ppb (1) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 39.0 ppb (30) 0.12 ppb (1) N/A N/A 30.0
 
Jan. 23, 2020, 9 p.m. 16.9 ppb (16) 3.5 ppb (3) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 36.0 ppb (28) 0.14 ppb (2) N/A N/A 28.0
 
Jan. 23, 2020, 8 p.m. 33.1 ppb (31) 10.7 ppb (10) N/A 22.0 ppb (20) N/A 0.0 ppb (0) 27.0 ppb (21) 0.19 ppb (2) N/A N/A 31.0
 
Jan. 23, 2020, 7 p.m. 44.8 ppb (41) 17.6 ppb (16) N/A 27.0 ppb (25) N/A 1.0 ppb (1) 22.0 ppb (17) 0.28 ppb (3) N/A N/A 41.0
 
Jan. 23, 2020, 6 p.m. 49.3 ppb (46) 21.1 ppb (20) N/A 28.0 ppb (26) N/A 1.0 ppb (1) 20.0 ppb (15) 0.31 ppb (3) N/A N/A 46.0
 
Jan. 23, 2020, 5 p.m. 44.4 ppb (41) 18.5 ppb (17) N/A 26.0 ppb (24) N/A 0.0 ppb (0) 18.0 ppb (14) 0.35 ppb (4) N/A N/A 41.0
 
Jan. 23, 2020, 4 p.m. 28.5 ppb (26) 12.5 ppb (12) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 26.0 ppb (20) 0.23 ppb (3) N/A N/A 26.0
 
Jan. 23, 2020, 3 p.m. 22.5 ppb (21) 4.8 ppb (4) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 23.0 ppb (18) 0.24 ppb (3) N/A N/A 21.0
 
Jan. 23, 2020, 2 p.m. 7.4 ppb (7) -0.7 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 34.0 ppb (26) 0.07 ppb (1) N/A N/A 26.0
 
Jan. 23, 2020, 1 p.m. 14.0 ppb (13) -0.5 ppb (0) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 26.0 ppb (20) 0.1 ppb (1) N/A N/A 20.0
 
Jan. 23, 2020, noon 10.2 ppb (9) -0.6 ppb (0) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 31.0 ppb (24) 0.06 ppb (1) N/A N/A 24.0
 
Jan. 23, 2020, 11 a.m. 4.8 ppb (4) -0.8 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 37.0 ppb (28) 0.05 ppb (1) N/A N/A 28.0
 
Jan. 23, 2020, 10 a.m. 39.6 ppb (37) 8.7 ppb (8) N/A 31.0 ppb (29) N/A 0.0 ppb (0) 9.0 ppb (7) 0.31 ppb (3) N/A N/A 37.0
 
Jan. 23, 2020, 9 a.m. 43.1 ppb (40) 10.3 ppb (10) N/A 33.0 ppb (31) N/A 0.0 ppb (0) 3.0 ppb (2) 0.36 ppb (4) N/A N/A 40.0
 
Jan. 23, 2020, 8 a.m. 50.8 ppb (47) 19.6 ppb (18) N/A 31.0 ppb (29) N/A 0.0 ppb (0) 2.0 ppb (2) 0.47 ppb (5) N/A N/A 47.0
 
Jan. 23, 2020, 7 a.m. 55.5 ppb (52) 24.6 ppb (23) N/A 31.0 ppb (29) N/A 0.0 ppb (0) 2.0 ppb (2) 0.52 ppb (6) N/A N/A 52.0
 
Jan. 23, 2020, 6 a.m. 57.7 ppb (54) 25.0 ppb (23) N/A 33.0 ppb (31) N/A 0.0 ppb (0) 2.0 ppb (2) 0.57 ppb (6) N/A N/A 54.0
 
Jan. 23, 2020, 5 a.m. 65.6 ppb (62) 31.1 ppb (29) N/A 35.0 ppb (32) N/A 0.0 ppb (0) 2.0 ppb (2) 0.63 ppb (7) N/A N/A 62.0
 
Jan. 23, 2020, 4 a.m. 62.8 ppb (59) 28.5 ppb (26) N/A 34.0 ppb (31) N/A 0.0 ppb (0) 2.0 ppb (2) 0.62 ppb (7) N/A N/A 59.0
 
Jan. 23, 2020, 3 a.m. 35.1 ppb (32) 5.1 ppb (5) N/A 30.0 ppb (28) N/A 0.0 ppb (0) 4.0 ppb (3) 0.38 ppb (4) N/A N/A 32.0
 
Jan. 23, 2020, 2 a.m. 37.7 ppb (35) 3.0 ppb (3) N/A 35.0 ppb (32) N/A 0.0 ppb (0) 7.0 ppb (5) 0.43 ppb (5) N/A N/A 35.0
 
Jan. 23, 2020, 1 a.m. 27.6 ppb (26) 1.3 ppb (1) N/A 26.0 ppb (24) N/A 0.0 ppb (0) 20.0 ppb (15) 0.49 ppb (5) N/A N/A 26.0
 
Jan. 23, 2020, midnight 16.8 ppb (16) 0.5 ppb (0) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 33.0 ppb (25) 0.16 ppb (2) N/A N/A 25.0
 
Jan. 22, 2020, 11 p.m. 18.1 ppb (17) 2.2 ppb (2) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 34.0 ppb (26) 0.17 ppb (2) N/A N/A 26.0
 
Jan. 22, 2020, 10 p.m. 17.9 ppb (17) 3.2 ppb (3) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 35.0 ppb (27) 0.15 ppb (2) N/A N/A 27.0
 
Jan. 22, 2020, 9 p.m. 20.8 ppb (19) 5.1 ppb (5) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 33.0 ppb (25) 0.15 ppb (2) N/A N/A 25.0
 
Jan. 22, 2020, 8 p.m. 24.2 ppb (22) 6.9 ppb (6) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 28.0 ppb (22) 0.18 ppb (2) N/A N/A 22.0
 
Jan. 22, 2020, 7 p.m. 22.3 ppb (21) 6.2 ppb (6) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 27.0 ppb (21) 0.17 ppb (2) N/A N/A 21.0
 
Jan. 22, 2020, 6 p.m. 24.1 ppb (22) 5.2 ppb (5) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 24.0 ppb (18) 0.18 ppb (2) N/A N/A 22.0