AQSQID: 060950004

Site Name: Vallejo

Location: Vallejo, CA

Reporting: True, Located: True

Current AQI: 82.0

Vallejo CA, US: 38.102507, -122.237976

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 24, 2019, 7 a.m. 83.8 ppb (82) 59.4 ppb (56) N/A 24.0 ppb (22) N/A 1.0 ppb (1) 1.0 ppb (1) 1.15 ppb (13) N/A 27.0 μg/m3 (82) 82.0
 
Jan. 24, 2019, 6 a.m. 83.5 ppb (81) 55.6 ppb (52) N/A 28.0 ppb (26) N/A 1.0 ppb (1) 1.0 ppb (1) 1.16 ppb (13) N/A 18.0 μg/m3 (63) 81.0
 
Jan. 24, 2019, 5 a.m. 75.6 ppb (73) 46.7 ppb (43) N/A 29.0 ppb (27) N/A 1.0 ppb (1) 1.0 ppb (1) 1.25 ppb (14) N/A 22.0 μg/m3 (71) 73.0
 
Jan. 24, 2019, 4 a.m. 62.4 ppb (59) 32.2 ppb (30) N/A 30.0 ppb (28) N/A 1.0 ppb (1) 2.0 ppb (2) 1.08 ppb (12) N/A 22.0 μg/m3 (71) 71.0
 
Jan. 24, 2019, 3 a.m. 41.6 ppb (39) 10.8 ppb (10) N/A 31.0 ppb (29) N/A 1.0 ppb (1) 2.0 ppb (2) 0.72 ppb (8) N/A 16.0 μg/m3 (59) 59.0
 
Jan. 24, 2019, 2 a.m. 36.1 ppb (33) 6.0 ppb (6) N/A 30.0 ppb (28) N/A 1.0 ppb (1) 6.0 ppb (5) 0.65 ppb (7) N/A 13.0 μg/m3 (52) 52.0
 
Jan. 24, 2019, 1 a.m. 16.7 ppb (15) 1.9 ppb (2) N/A 15.0 ppb (14) N/A 1.0 ppb (1) 17.0 ppb (13) 0.45 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 24, 2019, midnight 11.8 ppb (11) 2.4 ppb (2) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 23.0 ppb (18) 0.36 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 23, 2019, 11 p.m. 8.4 ppb (8) 2.2 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 26.0 ppb (20) 0.27 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 23, 2019, 10 p.m. 8.2 ppb (8) 2.4 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 26.0 ppb (20) 0.25 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 23, 2019, 9 p.m. 8.6 ppb (8) 3.1 ppb (3) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 26.0 ppb (20) 0.24 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 23, 2019, 8 p.m. 9.3 ppb (9) 3.3 ppb (3) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 25.0 ppb (19) 0.26 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 23, 2019, 7 p.m. 16.1 ppb (15) 6.5 ppb (6) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 18.0 ppb (14) 0.34 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 23, 2019, 6 p.m. 13.9 ppb (13) 5.8 ppb (5) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 18.0 ppb (14) 0.29 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 23, 2019, 5 p.m. 23.7 ppb (22) 11.5 ppb (11) N/A 12.0 ppb (11) N/A 1.0 ppb (1) 10.0 ppb (8) 0.4 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 23, 2019, 4 p.m. 54.4 ppb (50) 29.1 ppb (27) N/A 25.0 ppb (23) N/A 1.0 ppb (1) 4.0 ppb (3) 0.68 ppb (8) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 23, 2019, 3 p.m. 95.3 ppb (94) 73.9 ppb (71) N/A 21.0 ppb (19) N/A 1.0 ppb (1) 1.0 ppb (1) 1.22 ppb (14) N/A 9.0 μg/m3 (38) 94.0
 
Jan. 23, 2019, 2 p.m. 102.8 ppb (100) 83.5 ppb (81) N/A 19.0 ppb (18) N/A 1.0 ppb (1) 1.0 ppb (1) 1.21 ppb (13) N/A 12.0 μg/m3 (50) 100.0
 
Jan. 23, 2019, 1 p.m. 86.7 ppb (85) 65.6 ppb (62) N/A 21.0 ppb (19) N/A 1.0 ppb (1) 1.0 ppb (1) 0.86 ppb (10) N/A 11.0 μg/m3 (46) 85.0
 
Jan. 23, 2019, noon 66.6 ppb (63) 49.1 ppb (45) N/A 18.0 ppb (17) N/A N/A 1.0 ppb (1) 0.73 ppb (8) N/A 9.0 μg/m3 (38) 63.0
 
Jan. 23, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 23, 2019, 10 a.m. 65.3 ppb (62) 42.3 ppb (39) N/A 23.0 ppb (21) N/A 1.0 ppb (1) 1.0 ppb (1) 0.75 ppb (8) N/A 11.0 μg/m3 (46) 62.0
 
Jan. 23, 2019, 9 a.m. 56.8 ppb (53) 34.8 ppb (32) N/A 22.0 ppb (20) N/A 1.0 ppb (1) 1.0 ppb (1) 0.72 ppb (8) N/A 11.0 μg/m3 (46) 53.0
 
Jan. 23, 2019, 8 a.m. 60.0 ppb (56) 38.3 ppb (35) N/A 22.0 ppb (20) N/A 1.0 ppb (1) 1.0 ppb (1) 0.88 ppb (10) N/A 17.0 μg/m3 (61) 61.0
 
Jan. 23, 2019, 7 a.m. 56.8 ppb (53) 33.1 ppb (31) N/A 24.0 ppb (22) N/A 1.0 ppb (1) 1.0 ppb (1) 0.88 ppb (10) N/A 16.0 μg/m3 (59) 59.0
 
Jan. 23, 2019, 6 a.m. 61.1 ppb (58) 32.8 ppb (30) N/A 28.0 ppb (26) N/A 1.0 ppb (1) 1.0 ppb (1) 0.87 ppb (10) N/A 19.0 μg/m3 (65) 65.0
 
Jan. 23, 2019, 5 a.m. 70.2 ppb (67) 41.6 ppb (39) N/A 29.0 ppb (27) N/A 1.0 ppb (1) 1.0 ppb (1) 1.22 ppb (14) N/A 21.0 μg/m3 (69) 69.0
 
Jan. 23, 2019, 4 a.m. 58.6 ppb (55) 25.0 ppb (23) N/A 34.0 ppb (31) N/A 1.0 ppb (1) 2.0 ppb (2) 0.95 ppb (11) N/A 15.0 μg/m3 (56) 56.0
 
Jan. 23, 2019, 3 a.m. 21.1 ppb (20) 1.9 ppb (2) N/A 19.0 ppb (18) N/A 1.0 ppb (1) 14.0 ppb (11) 0.45 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 23, 2019, 2 a.m. 16.8 ppb (16) 1.8 ppb (2) N/A 15.0 ppb (14) N/A 1.0 ppb (1) 19.0 ppb (15) 0.37 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 23, 2019, 1 a.m. 21.7 ppb (20) 2.6 ppb (2) N/A 19.0 ppb (18) N/A 1.0 ppb (1) 17.0 ppb (13) 0.43 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 23, 2019, midnight 11.7 ppb (11) 2.0 ppb (2) N/A 10.0 ppb (9) N/A 3.0 ppb (4) 26.0 ppb (20) 0.28 ppb (3) N/A 4.0 μg/m3 (17) 20.0
 
Jan. 22, 2019, 11 p.m. 9.0 ppb (8) 2.3 ppb (2) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 30.0 ppb (23) 0.26 ppb (3) N/A 4.0 μg/m3 (17) 23.0
 
Jan. 22, 2019, 10 p.m. 7.0 ppb (6) 2.8 ppb (3) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 32.0 ppb (25) 0.22 ppb (2) N/A 2.0 μg/m3 (8) 25.0
 
Jan. 22, 2019, 9 p.m. 4.2 ppb (4) 1.7 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 32.0 ppb (25) 0.21 ppb (2) N/A 2.0 μg/m3 (8) 25.0
 
Jan. 22, 2019, 8 p.m. 5.8 ppb (5) 2.4 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 27.0 ppb (21) 0.24 ppb (3) N/A 3.0 μg/m3 (12) 21.0
 
Jan. 22, 2019, 7 p.m. 7.9 ppb (7) 3.5 ppb (3) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 23.0 ppb (18) 0.24 ppb (3) N/A 4.0 μg/m3 (17) 18.0
 
Jan. 22, 2019, 6 p.m. 7.1 ppb (7) 3.1 ppb (3) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 26.0 ppb (20) 0.21 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 22, 2019, 5 p.m. 46.8 ppb (43) 27.8 ppb (26) N/A 19.0 ppb (18) N/A 1.0 ppb (1) 17.0 ppb (13) 0.56 ppb (6) N/A 10.0 μg/m3 (42) 43.0
 
Jan. 22, 2019, 4 p.m. 139.1 ppb (107) 103.3 ppb (100) N/A 36.0 ppb (33) N/A 2.0 ppb (3) 1.0 ppb (1) 1.53 ppb (17) N/A 9.0 μg/m3 (38) 107.0
 
Jan. 22, 2019, 3 p.m. 118.2 ppb (103) 86.0 ppb (84) N/A 32.0 ppb (30) N/A 2.0 ppb (3) 1.0 ppb (1) 1.04 ppb (12) N/A 11.0 μg/m3 (46) 103.0
 
Jan. 22, 2019, 2 p.m. 95.1 ppb (94) 66.8 ppb (64) N/A 28.0 ppb (26) N/A 1.0 ppb (1) 0.0 ppb (0) 0.95 ppb (11) N/A 6.0 μg/m3 (25) 94.0
 
Jan. 22, 2019, 1 p.m. 54.3 ppb (50) 27.4 ppb (25) N/A 27.0 ppb (25) N/A 2.0 ppb (3) 1.0 ppb (1) 0.63 ppb (7) N/A 7.0 μg/m3 (29) 50.0
 
Jan. 22, 2019, noon 36.2 ppb (34) 12.6 ppb (12) N/A 24.0 ppb (22) N/A N/A 2.0 ppb (2) 0.46 ppb (5) N/A 4.0 μg/m3 (17) 34.0
 
Jan. 22, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 22, 2019, 10 a.m. 33.3 ppb (31) 16.2 ppb (15) N/A 17.0 ppb (16) N/A 1.0 ppb (1) 1.0 ppb (1) 0.55 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 22, 2019, 9 a.m. 54.6 ppb (51) 36.2 ppb (34) N/A 18.0 ppb (17) N/A 1.0 ppb (1) 1.0 ppb (1) 0.81 ppb (9) N/A 14.0 μg/m3 (54) 54.0
 
Jan. 22, 2019, 8 a.m. 60.1 ppb (56) 40.5 ppb (38) N/A 20.0 ppb (19) N/A 1.0 ppb (1) 1.0 ppb (1) 0.94 ppb (10) N/A 18.0 μg/m3 (63) 63.0
 
Jan. 22, 2019, 7 a.m. 77.1 ppb (75) 59.3 ppb (56) N/A 18.0 ppb (17) N/A 1.0 ppb (1) 1.0 ppb (1) 1.26 ppb (14) N/A 31.0 μg/m3 (90) 90.0
 
Jan. 22, 2019, 6 a.m. 95.3 ppb (94) 70.7 ppb (68) N/A 25.0 ppb (23) N/A 1.0 ppb (1) 1.0 ppb (1) 1.42 ppb (16) N/A 22.0 μg/m3 (71) 94.0
 
Jan. 22, 2019, 5 a.m. 75.4 ppb (73) 54.2 ppb (50) N/A 21.0 ppb (19) N/A 1.0 ppb (1) 1.0 ppb (1) 1.25 ppb (14) N/A 21.0 μg/m3 (69) 73.0
 
Jan. 22, 2019, 4 a.m. 59.5 ppb (56) 34.5 ppb (32) N/A 25.0 ppb (23) N/A 1.0 ppb (1) 1.0 ppb (1) 1.22 ppb (14) N/A 15.0 μg/m3 (56) 56.0
 
Jan. 22, 2019, 3 a.m. 27.9 ppb (26) 6.3 ppb (6) N/A 22.0 ppb (20) N/A 1.0 ppb (1) 6.0 ppb (5) 0.68 ppb (8) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 22, 2019, 2 a.m. 6.4 ppb (6) 0.5 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 24.0 ppb (18) 0.29 ppb (3) N/A 3.0 μg/m3 (12) 18.0
 
Jan. 22, 2019, 1 a.m. 8.7 ppb (8) 1.7 ppb (2) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 27.0 ppb (21) 0.27 ppb (3) N/A 4.0 μg/m3 (17) 21.0
 
Jan. 22, 2019, midnight 6.7 ppb (6) 1.7 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 31.0 ppb (24) 0.22 ppb (2) N/A 4.0 μg/m3 (17) 24.0
 
Jan. 21, 2019, 11 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 35.0 ppb (27) 0.22 ppb (2) N/A 3.0 μg/m3 (12) 27.0
 
Jan. 21, 2019, 10 p.m. 2.7 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) 0.2 ppb (2) N/A 5.0 μg/m3 (21) 27.0
 
Jan. 21, 2019, 9 p.m. 2.3 ppb (2) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 34.0 ppb (26) 0.21 ppb (2) N/A 5.0 μg/m3 (21) 26.0
 
Jan. 21, 2019, 8 p.m. 2.1 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (26) 0.19 ppb (2) N/A 5.0 μg/m3 (21) 26.0
 
Jan. 21, 2019, 7 p.m. 4.3 ppb (4) 1.3 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 32.0 ppb (25) 0.2 ppb (2) N/A 2.0 μg/m3 (8) 25.0
 
Jan. 21, 2019, 6 p.m. 4.4 ppb (4) 1.8 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 32.0 ppb (25) 0.19 ppb (2) N/A 1.0 μg/m3 (4) 25.0
 
Jan. 21, 2019, 5 p.m. 5.5 ppb (5) 2.3 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 32.0 ppb (25) 0.18 ppb (2) N/A 4.0 μg/m3 (17) 25.0
 
Jan. 21, 2019, 4 p.m. 18.5 ppb (17) 6.3 ppb (6) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 23.0 ppb (18) 0.33 ppb (4) N/A 3.0 μg/m3 (12) 18.0
 
Jan. 21, 2019, 3 p.m. 26.2 ppb (24) 7.3 ppb (7) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 19.0 ppb (15) 0.37 ppb (4) N/A 2.0 μg/m3 (8) 24.0
 
Jan. 21, 2019, 2 p.m. 18.8 ppb (17) 3.4 ppb (3) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 18.0 ppb (14) 0.35 ppb (4) N/A 3.0 μg/m3 (12) 17.0
 
Jan. 21, 2019, 1 p.m. 5.6 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 31.0 ppb (24) 0.17 ppb (2) N/A 4.0 μg/m3 (17) 24.0
 
Jan. 21, 2019, noon 3.0 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 33.0 ppb (25) 0.17 ppb (2) N/A 3.0 μg/m3 (12) 25.0
 
Jan. 21, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 21, 2019, 10 a.m. 1.8 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (28) 0.16 ppb (2) N/A 5.0 μg/m3 (21) 28.0
 
Jan. 21, 2019, 9 a.m. 1.3 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (28) 0.17 ppb (2) N/A 5.0 μg/m3 (21) 28.0
 
Jan. 21, 2019, 8 a.m. 2.4 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) 0.17 ppb (2) N/A 4.0 μg/m3 (17) 27.0
 
Jan. 21, 2019, 7 a.m. 2.6 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (26) 0.18 ppb (2) N/A 3.0 μg/m3 (12) 26.0
 
Jan. 21, 2019, 6 a.m. 1.8 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (28) 0.17 ppb (2) N/A 3.0 μg/m3 (12) 28.0
 
Jan. 21, 2019, 5 a.m. 1.7 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (28) 0.18 ppb (2) N/A 3.0 μg/m3 (12) 28.0
 
Jan. 21, 2019, 4 a.m. 1.9 ppb (2) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 38.0 ppb (29) 0.18 ppb (2) N/A 4.0 μg/m3 (17) 29.0
 
Jan. 21, 2019, 3 a.m. 2.4 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (29) 0.19 ppb (2) N/A 3.0 μg/m3 (12) 29.0
 
Jan. 21, 2019, 2 a.m. 1.4 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 38.0 ppb (29) 0.19 ppb (2) N/A 2.0 μg/m3 (8) 29.0
 
Jan. 21, 2019, 1 a.m. 1.7 ppb (2) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 36.0 ppb (28) 0.19 ppb (2) N/A 2.0 μg/m3 (8) 28.0
 
Jan. 21, 2019, midnight 2.0 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (28) 0.2 ppb (2) N/A 2.0 μg/m3 (8) 28.0
 
Jan. 20, 2019, 11 p.m. 1.8 ppb (2) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (28) 0.19 ppb (2) N/A 2.0 μg/m3 (8) 28.0
 
Jan. 20, 2019, 10 p.m. 2.3 ppb (2) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) 0.2 ppb (2) N/A 2.0 μg/m3 (8) 27.0
 
Jan. 20, 2019, 9 p.m. 1.7 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 36.0 ppb (28) 0.19 ppb (2) N/A 2.0 μg/m3 (8) 28.0
 
Jan. 20, 2019, 8 p.m. 2.3 ppb (2) 1.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (25) 0.2 ppb (2) N/A 2.0 μg/m3 (8) 25.0
 
Jan. 20, 2019, 7 p.m. 3.3 ppb (3) 1.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 30.0 ppb (23) 0.21 ppb (2) N/A 0.0 μg/m3 (0) 23.0
 
Jan. 20, 2019, 6 p.m. 5.8 ppb (5) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 22.0 ppb (17) 0.21 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 20, 2019, 5 p.m. 5.5 ppb (5) 1.7 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 21.0 ppb (16) 0.22 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 20, 2019, 4 p.m. 5.7 ppb (5) 1.1 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 19.0 ppb (15) 0.22 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 20, 2019, 3 p.m. 5.0 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 17.0 ppb (13) 0.21 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2019, 2 p.m. 6.4 ppb (6) 0.7 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 14.0 ppb (11) 0.22 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
Jan. 20, 2019, 1 p.m. 7.6 ppb (7) 0.8 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 13.0 ppb (10) 0.23 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 20, 2019, noon 13.3 ppb (12) 1.2 ppb (1) N/A 12.0 ppb (11) N/A N/A 9.0 ppb (7) 0.3 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 20, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 20, 2019, 10 a.m. 18.8 ppb (17) 1.7 ppb (2) N/A 17.0 ppb (16) N/A 1.0 ppb (1) 7.0 ppb (5) 0.38 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 20, 2019, 9 a.m. 26.9 ppb (25) 9.1 ppb (8) N/A 18.0 ppb (17) N/A 1.0 ppb (1) 1.0 ppb (1) 0.67 ppb (7) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 20, 2019, 8 a.m. 40.5 ppb (38) 22.2 ppb (21) N/A 18.0 ppb (17) N/A 1.0 ppb (1) 1.0 ppb (1) 0.95 ppb (11) N/A 20.0 μg/m3 (67) 67.0
 
Jan. 20, 2019, 7 a.m. 45.0 ppb (42) 24.6 ppb (23) N/A 20.0 ppb (19) N/A 1.0 ppb (1) 1.0 ppb (1) 0.99 ppb (11) N/A 18.0 μg/m3 (63) 63.0
 
Jan. 20, 2019, 6 a.m. 56.9 ppb (53) 39.5 ppb (37) N/A 17.0 ppb (16) N/A 1.0 ppb (1) 1.0 ppb (1) 1.28 ppb (14) N/A 25.0 μg/m3 (78) 78.0
 
Jan. 20, 2019, 5 a.m. 54.0 ppb (50) 30.7 ppb (28) N/A 23.0 ppb (21) N/A 1.0 ppb (1) 1.0 ppb (1) 1.24 ppb (14) N/A 29.0 μg/m3 (86) 86.0
 
Jan. 20, 2019, 4 a.m. 47.2 ppb (44) 24.9 ppb (23) N/A 22.0 ppb (20) N/A 1.0 ppb (1) 1.0 ppb (1) 1.14 ppb (13) N/A 28.0 μg/m3 (84) 84.0
 
Jan. 20, 2019, 3 a.m. 35.1 ppb (32) 10.0 ppb (9) N/A 25.0 ppb (23) N/A 1.0 ppb (1) 2.0 ppb (2) 0.75 ppb (8) N/A 15.0 μg/m3 (56) 56.0
 
Jan. 20, 2019, 2 a.m. 25.9 ppb (24) 3.7 ppb (3) N/A 22.0 ppb (20) N/A 1.0 ppb (1) 7.0 ppb (5) 0.57 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 20, 2019, 1 a.m. 18.7 ppb (17) 2.9 ppb (3) N/A 16.0 ppb (15) N/A 1.0 ppb (1) 15.0 ppb (12) 0.43 ppb (5) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 20, 2019, midnight 11.0 ppb (10) 1.9 ppb (2) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 18.0 ppb (14) 0.34 ppb (4) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 19, 2019, 11 p.m. 5.1 ppb (5) 1.4 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 21.0 ppb (16) 0.21 ppb (2) N/A 3.0 μg/m3 (12) 16.0
 
Jan. 19, 2019, 10 p.m. 5.3 ppb (5) 1.8 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 24.0 ppb (18) 0.2 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 19, 2019, 9 p.m. 9.9 ppb (9) 3.4 ppb (3) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 24.0 ppb (18) 0.27 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 19, 2019, 8 p.m. 9.6 ppb (9) 2.7 ppb (3) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 23.0 ppb (18) 0.29 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 19, 2019, 7 p.m. 10.1 ppb (9) 2.7 ppb (3) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 20.0 ppb (15) 0.33 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 19, 2019, 6 p.m. 9.7 ppb (9) 2.7 ppb (3) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 18.0 ppb (14) 0.39 ppb (4) N/A 15.0 μg/m3 (56) 56.0
 
Jan. 19, 2019, 5 p.m. 10.7 ppb (10) 2.6 ppb (2) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 15.0 ppb (12) 0.32 ppb (4) N/A 13.0 μg/m3 (52) 52.0
 
Jan. 19, 2019, 4 p.m. 12.0 ppb (11) 2.3 ppb (2) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 12.0 ppb (9) 0.37 ppb (4) N/A 13.0 μg/m3 (52) 52.0
 
Jan. 19, 2019, 3 p.m. 10.4 ppb (10) 1.2 ppb (1) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 13.0 ppb (10) 0.33 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 19, 2019, 2 p.m. 7.6 ppb (7) 1.0 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 14.0 ppb (11) 0.29 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 19, 2019, 1 p.m. 10.2 ppb (9) 1.6 ppb (1) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 14.0 ppb (11) 0.31 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2019, noon 5.4 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A N/A 18.0 ppb (14) 0.24 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 19, 2019, 10 a.m. 7.3 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 20.0 ppb (15) 0.24 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2019, 9 a.m. 8.6 ppb (8) 0.4 ppb (0) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 20.0 ppb (15) 0.26 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2019, 8 a.m. 7.0 ppb (6) 0.5 ppb (0) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 25.0 ppb (19) 0.23 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 19, 2019, 7 a.m. 6.9 ppb (6) 0.8 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 27.0 ppb (21) 0.22 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 19, 2019, 6 a.m. 24.4 ppb (23) 3.3 ppb (3) N/A 21.0 ppb (19) N/A 1.0 ppb (1) 3.0 ppb (2) 0.57 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 19, 2019, 5 a.m. 17.4 ppb (16) 1.2 ppb (1) N/A 16.0 ppb (15) N/A 1.0 ppb (1) 10.0 ppb (8) 0.41 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 19, 2019, 4 a.m. 10.6 ppb (10) 0.5 ppb (0) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 19.0 ppb (15) 0.33 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 19, 2019, 3 a.m. 12.1 ppb (11) 1.2 ppb (1) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 20.0 ppb (15) 0.33 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 19, 2019, 2 a.m. 17.2 ppb (16) 2.4 ppb (2) N/A 15.0 ppb (14) N/A 1.0 ppb (1) 16.0 ppb (12) 0.41 ppb (5) N/A 13.0 μg/m3 (52) 52.0
 
Jan. 19, 2019, 1 a.m. 22.8 ppb (21) 3.4 ppb (3) N/A 19.0 ppb (18) N/A 1.0 ppb (1) 15.0 ppb (12) 0.47 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 19, 2019, midnight 9.2 ppb (9) 1.6 ppb (1) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 27.0 ppb (21) 0.3 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 18, 2019, 11 p.m. 5.9 ppb (5) 1.1 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 30.0 ppb (23) 0.22 ppb (2) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 18, 2019, 10 p.m. 7.5 ppb (7) 1.7 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 29.0 ppb (22) 0.23 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 18, 2019, 9 p.m. 8.6 ppb (8) 2.2 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 28.0 ppb (22) 0.23 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 18, 2019, 8 p.m. 7.4 ppb (7) 2.0 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 29.0 ppb (22) 0.22 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 18, 2019, 7 p.m. 5.5 ppb (5) 1.4 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 30.0 ppb (23) 0.23 ppb (3) N/A N/A 23.0
 
Jan. 18, 2019, 6 p.m. 6.8 ppb (6) 1.8 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 26.0 ppb (20) 0.22 ppb (2) N/A 13.0 μg/m3 (52) 52.0
 
Jan. 18, 2019, 5 p.m. 17.6 ppb (16) 4.9 ppb (5) N/A 13.0 ppb (12) N/A 1.0 ppb (1) 14.0 ppb (11) 0.32 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 18, 2019, 4 p.m. 30.3 ppb (28) 10.2 ppb (9) N/A 20.0 ppb (19) N/A 1.0 ppb (1) 6.0 ppb (5) 0.62 ppb (7) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 18, 2019, 3 p.m. 54.5 ppb (51) 34.8 ppb (32) N/A 20.0 ppb (19) N/A 1.0 ppb (1) 1.0 ppb (1) 0.86 ppb (10) N/A 10.0 μg/m3 (42) 51.0
 
Jan. 18, 2019, 2 p.m. 49.7 ppb (46) 32.5 ppb (30) N/A 17.0 ppb (16) N/A 1.0 ppb (1) 0.0 ppb (0) 0.75 ppb (8) N/A 8.0 μg/m3 (33) 46.0
 
Jan. 18, 2019, 1 p.m. 47.7 ppb (44) 31.3 ppb (29) N/A 16.0 ppb (15) N/A 1.0 ppb (1) 0.0 ppb (0) 0.72 ppb (8) N/A 7.0 μg/m3 (29) 44.0
 
Jan. 18, 2019, noon 35.6 ppb (33) 19.3 ppb (18) N/A 16.0 ppb (15) N/A N/A 1.0 ppb (1) 0.56 ppb (6) N/A 6.0 μg/m3 (25) 33.0
 
Jan. 18, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 18, 2019, 10 a.m. 30.3 ppb (28) 9.4 ppb (9) N/A 21.0 ppb (19) N/A 1.0 ppb (1) 1.0 ppb (1) 0.5 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 18, 2019, 9 a.m. 31.1 ppb (29) 11.2 ppb (10) N/A 20.0 ppb (19) N/A 1.0 ppb (1) 1.0 ppb (1) 0.58 ppb (6) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 18, 2019, 8 a.m. 35.2 ppb (33) 12.8 ppb (12) N/A 22.0 ppb (20) N/A 1.0 ppb (1) 1.0 ppb (1) 0.61 ppb (7) N/A 14.0 μg/m3 (54) 54.0
 
Jan. 18, 2019, 7 a.m. 30.3 ppb (28) 5.8 ppb (5) N/A 24.0 ppb (22) N/A 1.0 ppb (1) 2.0 ppb (2) 0.53 ppb (6) N/A 13.0 μg/m3 (52) 52.0
 
Jan. 18, 2019, 6 a.m. 25.3 ppb (23) 4.1 ppb (4) N/A 21.0 ppb (19) N/A 1.0 ppb (1) 8.0 ppb (6) 0.55 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 18, 2019, 5 a.m. 13.8 ppb (13) 3.2 ppb (3) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 24.0 ppb (18) 0.29 ppb (3) N/A 16.0 μg/m3 (59) 59.0
 
Jan. 18, 2019, 4 a.m. 19.5 ppb (18) 3.0 ppb (3) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 16.0 ppb (12) 0.31 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 18, 2019, 3 a.m. 11.6 ppb (11) 1.4 ppb (1) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 25.0 ppb (19) 0.25 ppb (3) N/A 13.0 μg/m3 (52) 52.0
 
Jan. 18, 2019, 2 a.m. 9.7 ppb (9) 1.5 ppb (1) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 28.0 ppb (22) 0.23 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 18, 2019, 1 a.m. 6.4 ppb (6) 1.2 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 31.0 ppb (24) 0.23 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 18, 2019, midnight 6.3 ppb (6) 1.3 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 32.0 ppb (25) 0.22 ppb (2) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 17, 2019, 11 p.m. 7.1 ppb (7) 1.7 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 32.0 ppb (25) 0.22 ppb (2) N/A 15.0 μg/m3 (56) 56.0
 
Jan. 17, 2019, 10 p.m. 6.6 ppb (6) 1.9 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 33.0 ppb (25) 0.21 ppb (2) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 17, 2019, 9 p.m. 5.0 ppb (5) 1.5 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 33.0 ppb (25) 0.21 ppb (2) N/A 13.0 μg/m3 (52) 52.0
 
Jan. 17, 2019, 8 p.m. 6.6 ppb (6) 2.0 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 33.0 ppb (25) 0.21 ppb (2) N/A 17.0 μg/m3 (61) 61.0
 
Jan. 17, 2019, 7 p.m. 8.2 ppb (8) 2.4 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 31.0 ppb (24) 0.22 ppb (2) N/A 17.0 μg/m3 (61) 61.0
 
Jan. 17, 2019, 6 p.m. 12.1 ppb (11) 3.0 ppb (3) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 29.0 ppb (22) 0.23 ppb (3) N/A 15.0 μg/m3 (56) 56.0
 
Jan. 17, 2019, 5 p.m. 11.6 ppb (11) 2.5 ppb (2) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 29.0 ppb (22) 0.25 ppb (3) N/A 15.0 μg/m3 (56) 56.0
 
Jan. 17, 2019, 4 p.m. 12.2 ppb (11) 2.1 ppb (2) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 30.0 ppb (23) 0.24 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 17, 2019, 3 p.m. 6.3 ppb (6) 2.1 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 34.0 ppb (26) 0.19 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 17, 2019, 2 p.m. 7.0 ppb (6) 0.9 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 32.0 ppb (25) 0.2 ppb (2) N/A 14.0 μg/m3 (54) 54.0
 
Jan. 17, 2019, 1 p.m. 4.5 ppb (4) 0.9 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 33.0 ppb (25) 0.19 ppb (2) N/A 14.0 μg/m3 (54) 54.0
 
Jan. 17, 2019, noon 3.3 ppb (3) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 35.0 ppb (27) 0.17 ppb (2) N/A 15.0 μg/m3 (56) 56.0
 
Jan. 17, 2019, 11 a.m. 3.4 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 34.0 ppb (26) 0.17 ppb (2) N/A 15.0 μg/m3 (56) 56.0
 
Jan. 17, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 17, 2019, 9 a.m. 2.3 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) 0.18 ppb (2) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 17, 2019, 8 a.m. 2.8 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (26) 0.2 ppb (2) N/A 13.0 μg/m3 (52) 52.0