AQSQID: 060850006

Site Name: San Jose - Knox Ave

Location: San José, CA

Reporting: False, Located: True

Current AQI: None

San José CA, US: 37.338202, -121.849892

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Oct. 8, 2019, 3 p.m. 113.7 ppb (102) 64.5 ppb (61) N/A 49.0 ppb (45) N/A N/A N/A 1.48 ppb (16) N/A 14.0 μg/m3 (54) 102.0
 
Oct. 8, 2019, 2 p.m. 132.4 ppb (106) 88.9 ppb (87) N/A 44.0 ppb (41) N/A N/A N/A 1.7 ppb (19) N/A 19.0 μg/m3 (65) 106.0
 
Oct. 8, 2019, 1 p.m. 84.0 ppb (82) 43.4 ppb (40) N/A 41.0 ppb (38) N/A N/A N/A 1.1 ppb (12) N/A 11.0 μg/m3 (46) 82.0
 
Oct. 8, 2019, noon 58.1 ppb (54) 23.8 ppb (22) N/A 34.0 ppb (31) N/A N/A N/A 0.82 ppb (9) N/A 13.0 μg/m3 (52) 54.0
 
Oct. 8, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (52) 52.0
 
Oct. 8, 2019, 10 a.m. 35.3 ppb (33) 4.0 ppb (4) N/A 31.0 ppb (29) N/A N/A N/A 0.64 ppb (7) N/A 9.0 μg/m3 (38) 38.0
 
Oct. 8, 2019, 9 a.m. 27.4 ppb (25) 2.0 ppb (2) N/A 25.0 ppb (23) N/A N/A N/A 0.64 ppb (7) N/A 13.0 μg/m3 (52) 52.0
 
Oct. 8, 2019, 8 a.m. 30.6 ppb (28) 3.3 ppb (3) N/A 27.0 ppb (25) N/A N/A N/A 0.69 ppb (8) N/A 14.0 μg/m3 (54) 54.0
 
Oct. 8, 2019, 7 a.m. 28.6 ppb (26) 1.9 ppb (2) N/A 27.0 ppb (25) N/A N/A N/A 0.7 ppb (8) N/A 12.0 μg/m3 (50) 50.0
 
Oct. 8, 2019, 6 a.m. 29.9 ppb (28) 0.6 ppb (1) N/A 29.0 ppb (27) N/A N/A N/A 0.75 ppb (8) N/A 13.0 μg/m3 (52) 52.0
 
Oct. 8, 2019, 5 a.m. 37.6 ppb (35) 1.6 ppb (1) N/A 36.0 ppb (33) N/A N/A N/A 0.8 ppb (9) N/A 16.0 μg/m3 (59) 59.0
 
Oct. 8, 2019, 4 a.m. 31.8 ppb (29) 4.5 ppb (4) N/A 27.0 ppb (25) N/A N/A N/A 0.66 ppb (7) N/A 9.0 μg/m3 (38) 38.0
 
Oct. 8, 2019, 3 a.m. 31.1 ppb (29) 4.3 ppb (4) N/A 27.0 ppb (25) N/A N/A N/A 0.67 ppb (7) N/A 12.0 μg/m3 (50) 50.0
 
Oct. 8, 2019, 2 a.m. 29.8 ppb (28) 3.1 ppb (3) N/A 27.0 ppb (25) N/A N/A N/A 0.68 ppb (8) N/A 14.0 μg/m3 (54) 54.0
 
Oct. 8, 2019, 1 a.m. 39.8 ppb (37) 3.7 ppb (3) N/A 36.0 ppb (33) N/A N/A N/A 0.75 ppb (8) N/A 10.0 μg/m3 (42) 42.0
 
Oct. 8, 2019, midnight 22.9 ppb (21) 1.2 ppb (1) N/A 22.0 ppb (20) N/A N/A N/A 0.62 ppb (7) N/A 8.0 μg/m3 (33) 33.0
 
Oct. 7, 2019, 11 p.m. 22.0 ppb (20) 1.9 ppb (2) N/A 20.0 ppb (19) N/A N/A N/A 0.57 ppb (6) N/A 8.0 μg/m3 (33) 33.0
 
Oct. 7, 2019, 10 p.m. 24.4 ppb (23) 2.6 ppb (2) N/A 22.0 ppb (20) N/A N/A N/A 0.56 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Oct. 7, 2019, 9 p.m. 22.7 ppb (21) 3.0 ppb (3) N/A 20.0 ppb (19) N/A N/A N/A 0.52 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
Oct. 7, 2019, 8 p.m. 32.3 ppb (30) 5.5 ppb (5) N/A 27.0 ppb (25) N/A N/A N/A 0.57 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Oct. 7, 2019, 7 p.m. 33.5 ppb (31) 6.3 ppb (6) N/A 27.0 ppb (25) N/A N/A N/A 0.6 ppb (7) N/A 11.0 μg/m3 (46) 46.0
 
Oct. 7, 2019, 6 p.m. 30.6 ppb (28) 6.4 ppb (6) N/A 24.0 ppb (22) N/A N/A N/A 0.55 ppb (6) N/A N/A 28.0
 
Oct. 7, 2019, 5 p.m. 48.7 ppb (45) 16.2 ppb (15) N/A 32.0 ppb (30) N/A N/A N/A 0.68 ppb (8) N/A N/A 45.0
 
Oct. 7, 2019, 4 p.m. 68.4 ppb (65) 32.1 ppb (30) N/A 36.0 ppb (33) N/A N/A N/A 0.97 ppb (11) N/A 13.0 μg/m3 (52) 65.0
 
Oct. 7, 2019, 3 p.m. 81.9 ppb (80) 45.2 ppb (42) N/A 37.0 ppb (34) N/A N/A N/A 1.08 ppb (12) N/A 12.0 μg/m3 (50) 80.0
 
Oct. 7, 2019, 2 p.m. 96.7 ppb (95) 65.2 ppb (62) N/A 32.0 ppb (30) N/A N/A N/A 1.48 ppb (16) N/A 11.0 μg/m3 (46) 95.0
 
Oct. 7, 2019, 1 p.m. 90.6 ppb (89) 60.6 ppb (57) N/A 30.0 ppb (28) N/A N/A N/A 1.33 ppb (15) N/A 17.0 μg/m3 (61) 89.0
 
Oct. 7, 2019, noon 51.3 ppb (48) 24.7 ppb (23) N/A 27.0 ppb (25) N/A N/A N/A 0.92 ppb (10) N/A 11.0 μg/m3 (46) 48.0
 
Oct. 7, 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
 
Oct. 7, 2019, 10 a.m. 47.8 ppb (44) 18.0 ppb (17) N/A 30.0 ppb (28) N/A N/A N/A 0.88 ppb (10) N/A 10.0 μg/m3 (42) 44.0
 
Oct. 7, 2019, 9 a.m. 44.6 ppb (41) 14.1 ppb (13) N/A 31.0 ppb (29) N/A N/A N/A 0.97 ppb (11) N/A 15.0 μg/m3 (56) 56.0
 
Oct. 7, 2019, 8 a.m. 46.1 ppb (43) 12.3 ppb (11) N/A 34.0 ppb (31) N/A N/A N/A 0.96 ppb (11) N/A 10.0 μg/m3 (42) 43.0
 
Oct. 7, 2019, 7 a.m. 48.0 ppb (44) 12.6 ppb (12) N/A 35.0 ppb (32) N/A N/A N/A 1.0 ppb (11) N/A 9.0 μg/m3 (38) 44.0
 
Oct. 7, 2019, 6 a.m. 36.8 ppb (34) 3.9 ppb (4) N/A 33.0 ppb (31) N/A N/A N/A 0.87 ppb (10) N/A 9.0 μg/m3 (38) 38.0
 
Oct. 7, 2019, 5 a.m. 40.3 ppb (37) 6.2 ppb (6) N/A 34.0 ppb (31) N/A N/A N/A 0.87 ppb (10) N/A 15.0 μg/m3 (56) 56.0
 
Oct. 7, 2019, 4 a.m. 38.1 ppb (35) 3.7 ppb (3) N/A 34.0 ppb (31) N/A N/A N/A 0.78 ppb (9) N/A 9.0 μg/m3 (38) 38.0
 
Oct. 7, 2019, 3 a.m. 38.1 ppb (35) 4.9 ppb (5) N/A 33.0 ppb (31) N/A N/A N/A 0.81 ppb (9) N/A 16.0 μg/m3 (59) 59.0
 
Oct. 7, 2019, 2 a.m. 19.1 ppb (18) 0.3 ppb (0) N/A 19.0 ppb (18) N/A N/A N/A 0.56 ppb (6) N/A 8.0 μg/m3 (33) 33.0
 
Oct. 7, 2019, 1 a.m. 20.2 ppb (19) 1.8 ppb (2) N/A 18.0 ppb (17) N/A N/A N/A 0.57 ppb (6) N/A 4.0 μg/m3 (17) 19.0
 
Oct. 7, 2019, midnight 11.1 ppb (10) 0.9 ppb (1) N/A 10.0 ppb (9) N/A N/A N/A 0.51 ppb (6) N/A 8.0 μg/m3 (33) 33.0
 
Oct. 6, 2019, 11 p.m. 12.5 ppb (12) 1.5 ppb (1) N/A 11.0 ppb (10) N/A N/A N/A 0.52 ppb (6) N/A 7.0 μg/m3 (29) 29.0
 
Oct. 6, 2019, 10 p.m. 11.6 ppb (11) 1.8 ppb (2) N/A 10.0 ppb (9) N/A N/A N/A 0.48 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
Oct. 6, 2019, 9 p.m. 10.1 ppb (9) 1.6 ppb (1) N/A 9.0 ppb (8) N/A N/A N/A 0.39 ppb (4) N/A 3.0 μg/m3 (12) 12.0
 
Oct. 6, 2019, 8 p.m. 12.9 ppb (12) 2.8 ppb (3) N/A 10.0 ppb (9) N/A N/A N/A 0.41 ppb (5) N/A 4.0 μg/m3 (17) 17.0
 
Oct. 6, 2019, 7 p.m. 19.7 ppb (18) 5.1 ppb (5) N/A 15.0 ppb (14) N/A N/A N/A 0.43 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
Oct. 6, 2019, 6 p.m. 27.9 ppb (26) 8.7 ppb (8) N/A 19.0 ppb (18) N/A N/A N/A 0.52 ppb (6) N/A 7.0 μg/m3 (29) 29.0
 
Oct. 6, 2019, 5 p.m. 31.4 ppb (29) 11.0 ppb (10) N/A 20.0 ppb (19) N/A N/A N/A 0.68 ppb (8) N/A 7.0 μg/m3 (29) 29.0
 
Oct. 6, 2019, 4 p.m. 44.0 ppb (41) 18.8 ppb (17) N/A 25.0 ppb (23) N/A N/A N/A 0.86 ppb (10) N/A 11.0 μg/m3 (46) 46.0
 
Oct. 6, 2019, 3 p.m. 45.1 ppb (42) 21.9 ppb (20) N/A 23.0 ppb (21) N/A N/A N/A 0.83 ppb (9) N/A 8.0 μg/m3 (33) 42.0
 
Oct. 6, 2019, 2 p.m. 55.6 ppb (52) 33.6 ppb (31) N/A 22.0 ppb (20) N/A N/A N/A 0.93 ppb (10) N/A 9.0 μg/m3 (38) 52.0
 
Oct. 6, 2019, 1 p.m. 42.4 ppb (39) 22.2 ppb (21) N/A 20.0 ppb (19) N/A N/A N/A 0.72 ppb (8) N/A 6.0 μg/m3 (25) 39.0
 
Oct. 6, 2019, noon 31.0 ppb (29) 11.2 ppb (10) N/A 20.0 ppb (19) N/A N/A N/A 0.7 ppb (8) N/A 9.0 μg/m3 (38) 38.0
 
Oct. 6, 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
 
Oct. 6, 2019, 10 a.m. 14.5 ppb (13) 0.5 ppb (0) N/A 14.0 ppb (13) N/A N/A N/A 0.45 ppb (5) N/A 7.0 μg/m3 (29) 29.0
 
Oct. 6, 2019, 9 a.m. 36.2 ppb (34) 14.8 ppb (14) N/A 21.0 ppb (19) N/A N/A N/A 0.91 ppb (10) N/A 12.0 μg/m3 (50) 50.0
 
Oct. 6, 2019, 8 a.m. 48.3 ppb (45) 23.5 ppb (22) N/A 25.0 ppb (23) N/A N/A N/A 1.13 ppb (13) N/A 9.0 μg/m3 (38) 45.0
 
Oct. 6, 2019, 7 a.m. 41.5 ppb (38) 15.3 ppb (14) N/A 26.0 ppb (24) N/A N/A N/A 0.91 ppb (10) N/A 10.0 μg/m3 (42) 42.0
 
Oct. 6, 2019, 6 a.m. 28.9 ppb (27) 4.8 ppb (4) N/A 24.0 ppb (22) N/A N/A N/A 0.72 ppb (8) N/A 10.0 μg/m3 (42) 42.0
 
Oct. 6, 2019, 5 a.m. 27.3 ppb (25) 2.3 ppb (2) N/A 25.0 ppb (23) N/A N/A N/A 0.75 ppb (8) N/A 9.0 μg/m3 (38) 38.0
 
Oct. 6, 2019, 4 a.m. 20.3 ppb (19) 0.7 ppb (1) N/A 20.0 ppb (19) N/A N/A N/A 0.58 ppb (6) N/A 4.0 μg/m3 (17) 19.0
 
Oct. 6, 2019, 3 a.m. 27.1 ppb (25) 5.5 ppb (5) N/A 22.0 ppb (20) N/A N/A N/A 0.63 ppb (7) N/A 6.0 μg/m3 (25) 25.0
 
Oct. 6, 2019, 2 a.m. 21.8 ppb (20) 2.8 ppb (3) N/A 19.0 ppb (18) N/A N/A N/A 0.5 ppb (6) N/A 4.0 μg/m3 (17) 20.0
 
Oct. 6, 2019, 1 a.m. 14.3 ppb (13) 1.0 ppb (1) N/A 13.0 ppb (12) N/A N/A N/A 0.45 ppb (5) N/A 4.0 μg/m3 (17) 17.0
 
Oct. 6, 2019, midnight 15.3 ppb (14) 2.2 ppb (2) N/A 13.0 ppb (12) N/A N/A N/A 0.49 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
Oct. 5, 2019, 11 p.m. 15.3 ppb (14) 2.3 ppb (2) N/A 13.0 ppb (12) N/A N/A N/A 0.51 ppb (6) N/A 4.0 μg/m3 (17) 17.0
 
Oct. 5, 2019, 10 p.m. 17.1 ppb (16) 3.5 ppb (3) N/A 14.0 ppb (13) N/A N/A N/A 0.5 ppb (6) N/A 6.0 μg/m3 (25) 25.0
 
Oct. 5, 2019, 9 p.m. 13.4 ppb (12) 3.1 ppb (3) N/A 10.0 ppb (9) N/A N/A N/A 0.46 ppb (5) N/A 3.0 μg/m3 (12) 12.0
 
Oct. 5, 2019, 8 p.m. 16.0 ppb (15) 4.3 ppb (4) N/A 12.0 ppb (11) N/A N/A N/A 0.48 ppb (5) N/A 4.0 μg/m3 (17) 17.0
 
Oct. 5, 2019, 7 p.m. 22.1 ppb (20) 6.6 ppb (6) N/A 16.0 ppb (15) N/A N/A N/A 0.52 ppb (6) N/A 7.0 μg/m3 (29) 29.0
 
Oct. 5, 2019, 6 p.m. 33.9 ppb (31) 12.0 ppb (11) N/A 22.0 ppb (20) N/A N/A N/A 0.61 ppb (7) N/A 9.0 μg/m3 (38) 38.0
 
Oct. 5, 2019, 5 p.m. 32.8 ppb (30) 13.2 ppb (12) N/A 20.0 ppb (19) N/A N/A N/A 0.6 ppb (7) N/A 10.0 μg/m3 (42) 42.0
 
Oct. 5, 2019, 4 p.m. 47.8 ppb (44) 24.9 ppb (23) N/A 23.0 ppb (21) N/A N/A N/A 0.81 ppb (9) N/A 8.0 μg/m3 (33) 44.0
 
Oct. 5, 2019, 3 p.m. 41.9 ppb (39) 21.9 ppb (20) N/A 20.0 ppb (19) N/A N/A N/A 0.78 ppb (9) N/A 8.0 μg/m3 (33) 39.0
 
Oct. 5, 2019, 2 p.m. 49.1 ppb (45) 31.3 ppb (29) N/A 18.0 ppb (17) N/A N/A N/A 0.79 ppb (9) N/A 7.0 μg/m3 (29) 45.0
 
Oct. 5, 2019, 1 p.m. 39.9 ppb (37) 22.6 ppb (21) N/A 17.0 ppb (16) N/A N/A N/A 0.73 ppb (8) N/A 6.0 μg/m3 (25) 37.0
 
Oct. 5, 2019, noon 30.5 ppb (28) 14.2 ppb (13) N/A 16.0 ppb (15) N/A N/A N/A 0.59 ppb (7) N/A 7.0 μg/m3 (29) 29.0
 
Oct. 5, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Oct. 5, 2019, 10 a.m. 15.1 ppb (14) 1.7 ppb (2) N/A 13.0 ppb (12) N/A N/A N/A 0.44 ppb (5) N/A 8.0 μg/m3 (33) 33.0
 
Oct. 5, 2019, 9 a.m. 17.6 ppb (16) 1.9 ppb (2) N/A 16.0 ppb (15) N/A N/A N/A 0.51 ppb (6) N/A 7.0 μg/m3 (29) 29.0
 
Oct. 5, 2019, 8 a.m. 19.2 ppb (18) 2.8 ppb (3) N/A 17.0 ppb (16) N/A N/A N/A 0.54 ppb (6) N/A 8.0 μg/m3 (33) 33.0
 
Oct. 5, 2019, 7 a.m. 16.7 ppb (15) 1.4 ppb (1) N/A 15.0 ppb (14) N/A N/A N/A 0.47 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
Oct. 5, 2019, 6 a.m. 18.6 ppb (17) 0.7 ppb (1) N/A 18.0 ppb (17) N/A N/A N/A 0.53 ppb (6) N/A 8.0 μg/m3 (33) 33.0
 
Oct. 5, 2019, 5 a.m. 15.3 ppb (14) 0.3 ppb (0) N/A 15.0 ppb (14) N/A N/A N/A 0.44 ppb (5) N/A 5.0 μg/m3 (21) 21.0
 
Oct. 5, 2019, 4 a.m. 23.1 ppb (21) 5.0 ppb (5) N/A 18.0 ppb (17) N/A N/A N/A 0.55 ppb (6) N/A 8.0 μg/m3 (33) 33.0
 
Oct. 5, 2019, 3 a.m. 23.8 ppb (22) 5.7 ppb (5) N/A 18.0 ppb (17) N/A N/A N/A 0.56 ppb (6) N/A 8.0 μg/m3 (33) 33.0
 
Oct. 5, 2019, 2 a.m. 22.4 ppb (21) 4.3 ppb (4) N/A 18.0 ppb (17) N/A N/A N/A 0.52 ppb (6) N/A 7.0 μg/m3 (29) 29.0
 
Oct. 5, 2019, 1 a.m. 22.5 ppb (21) 5.0 ppb (5) N/A 17.0 ppb (16) N/A N/A N/A 0.51 ppb (6) N/A 6.0 μg/m3 (25) 25.0
 
Oct. 5, 2019, midnight 20.1 ppb (19) 4.5 ppb (4) N/A 16.0 ppb (15) N/A N/A N/A 0.46 ppb (5) N/A 5.0 μg/m3 (21) 21.0
 
Oct. 4, 2019, 11 p.m. 19.9 ppb (18) 4.6 ppb (4) N/A 15.0 ppb (14) N/A N/A N/A 0.48 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
Oct. 4, 2019, 10 p.m. 19.1 ppb (18) 5.1 ppb (5) N/A 14.0 ppb (13) N/A N/A N/A 0.47 ppb (5) N/A 4.0 μg/m3 (17) 18.0
 
Oct. 4, 2019, 9 p.m. 18.7 ppb (17) 5.6 ppb (5) N/A 13.0 ppb (12) N/A N/A N/A 0.43 ppb (5) N/A 5.0 μg/m3 (21) 21.0
 
Oct. 4, 2019, 8 p.m. 21.4 ppb (20) 7.8 ppb (7) N/A 14.0 ppb (13) N/A N/A N/A 0.43 ppb (5) N/A 4.0 μg/m3 (17) 20.0
 
Oct. 4, 2019, 7 p.m. 20.5 ppb (19) 7.5 ppb (7) N/A 13.0 ppb (12) N/A N/A N/A 0.41 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
Oct. 4, 2019, 6 p.m. 29.6 ppb (27) 12.0 ppb (11) N/A 18.0 ppb (17) N/A N/A N/A 0.46 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Oct. 4, 2019, 5 p.m. 36.0 ppb (33) 15.2 ppb (14) N/A 21.0 ppb (19) N/A N/A N/A 0.52 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
Oct. 4, 2019, 4 p.m. 43.6 ppb (40) 21.6 ppb (20) N/A 22.0 ppb (20) N/A N/A N/A 0.66 ppb (7) N/A 10.0 μg/m3 (42) 42.0
 
Oct. 4, 2019, 3 p.m. 76.6 ppb (74) 48.9 ppb (45) N/A 28.0 ppb (26) N/A N/A N/A 0.97 ppb (11) N/A 16.0 μg/m3 (59) 74.0
 
Oct. 4, 2019, 2 p.m. 63.6 ppb (60) 42.1 ppb (39) N/A 22.0 ppb (20) N/A N/A N/A 0.96 ppb (11) N/A 7.0 μg/m3 (29) 60.0
 
Oct. 4, 2019, 1 p.m. 83.2 ppb (81) 57.4 ppb (54) N/A 26.0 ppb (24) N/A N/A N/A 0.94 ppb (10) N/A 16.0 μg/m3 (59) 81.0
 
Oct. 4, 2019, noon 54.5 ppb (51) 31.7 ppb (29) N/A 23.0 ppb (21) N/A N/A N/A 0.69 ppb (8) N/A 13.0 μg/m3 (52) 52.0
 
Oct. 4, 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
 
Oct. 4, 2019, 10 a.m. 26.6 ppb (25) 6.7 ppb (6) N/A 20.0 ppb (19) N/A N/A N/A 0.47 ppb (5) N/A 5.0 μg/m3 (21) 25.0
 
Oct. 4, 2019, 9 a.m. 12.2 ppb (11) 0.7 ppb (1) N/A 12.0 ppb (11) N/A N/A N/A 0.39 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Oct. 4, 2019, 8 a.m. 18.8 ppb (17) 1.8 ppb (2) N/A 17.0 ppb (16) N/A N/A N/A 0.49 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
Oct. 4, 2019, 7 a.m. 21.8 ppb (20) 2.8 ppb (3) N/A 19.0 ppb (18) N/A N/A N/A 0.48 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
Oct. 4, 2019, 6 a.m. 13.2 ppb (12) 0.3 ppb (0) N/A 13.0 ppb (12) N/A N/A N/A 0.43 ppb (5) N/A 7.0 μg/m3 (29) 29.0
 
Oct. 4, 2019, 5 a.m. 20.0 ppb (19) 0.5 ppb (0) N/A 20.0 ppb (19) N/A N/A N/A 0.53 ppb (6) N/A 13.0 μg/m3 (52) 52.0
 
Oct. 4, 2019, 4 a.m. 14.8 ppb (14) 0.4 ppb (0) N/A 14.0 ppb (13) N/A N/A N/A 0.43 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Oct. 4, 2019, 3 a.m. 15.3 ppb (14) 1.4 ppb (1) N/A 14.0 ppb (13) N/A N/A N/A 0.42 ppb (5) N/A 8.0 μg/m3 (33) 33.0
 
Oct. 4, 2019, 2 a.m. 10.6 ppb (10) 0.6 ppb (1) N/A 10.0 ppb (9) N/A N/A N/A 0.39 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Oct. 4, 2019, 1 a.m. 7.2 ppb (7) 0.7 ppb (1) N/A 7.0 ppb (6) N/A N/A N/A 0.34 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Oct. 4, 2019, midnight 9.9 ppb (9) 2.2 ppb (2) N/A 8.0 ppb (7) N/A N/A N/A 0.37 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Oct. 3, 2019, 11 p.m. 11.5 ppb (11) 3.6 ppb (3) N/A 8.0 ppb (7) N/A N/A N/A 0.4 ppb (4) N/A 4.0 μg/m3 (17) 17.0
 
Oct. 3, 2019, 10 p.m. 14.6 ppb (14) 4.6 ppb (4) N/A 10.0 ppb (9) N/A N/A N/A 0.42 ppb (5) N/A 4.0 μg/m3 (17) 17.0
 
Oct. 3, 2019, 9 p.m. 14.4 ppb (13) 4.2 ppb (4) N/A 10.0 ppb (9) N/A N/A N/A 0.41 ppb (5) N/A 8.0 μg/m3 (33) 33.0
 
Oct. 3, 2019, 8 p.m. 11.8 ppb (11) 3.1 ppb (3) N/A 9.0 ppb (8) N/A N/A N/A 0.36 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Oct. 3, 2019, 7 p.m. 15.2 ppb (14) 5.0 ppb (5) N/A 10.0 ppb (9) N/A N/A N/A 0.35 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Oct. 3, 2019, 6 p.m. 24.8 ppb (23) 8.5 ppb (8) N/A 16.0 ppb (15) N/A N/A N/A 0.43 ppb (5) N/A 5.0 μg/m3 (21) 23.0
 
Oct. 3, 2019, 5 p.m. 30.5 ppb (28) 12.6 ppb (12) N/A 18.0 ppb (17) N/A N/A N/A 0.5 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Oct. 3, 2019, 4 p.m. 37.2 ppb (34) 17.6 ppb (16) N/A 20.0 ppb (19) N/A N/A N/A 0.52 ppb (6) N/A 7.0 μg/m3 (29) 34.0
 
Oct. 3, 2019, 3 p.m. 51.7 ppb (48) 29.5 ppb (27) N/A 22.0 ppb (20) N/A N/A N/A 0.74 ppb (8) N/A 8.0 μg/m3 (33) 48.0
 
Oct. 3, 2019, 2 p.m. 70.4 ppb (67) 49.7 ppb (46) N/A 21.0 ppb (19) N/A N/A N/A 1.06 ppb (12) N/A 13.0 μg/m3 (52) 67.0
 
Oct. 3, 2019, 1 p.m. 57.3 ppb (54) 39.0 ppb (36) N/A 18.0 ppb (17) N/A N/A N/A 0.94 ppb (10) N/A 8.0 μg/m3 (33) 54.0
 
Oct. 3, 2019, noon 46.7 ppb (43) 27.9 ppb (26) N/A 19.0 ppb (18) N/A N/A N/A 0.74 ppb (8) N/A 11.0 μg/m3 (46) 46.0
 
Oct. 3, 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
 
Oct. 3, 2019, 10 a.m. 19.1 ppb (18) 4.6 ppb (4) N/A 15.0 ppb (14) N/A N/A N/A 0.43 ppb (5) N/A 7.0 μg/m3 (29) 29.0
 
Oct. 3, 2019, 9 a.m. 18.7 ppb (17) 3.2 ppb (3) N/A 16.0 ppb (15) N/A N/A N/A 0.45 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
Oct. 3, 2019, 8 a.m. 17.9 ppb (17) 0.9 ppb (1) N/A 17.0 ppb (16) N/A N/A N/A 0.5 ppb (6) N/A 5.0 μg/m3 (21) 21.0
 
Oct. 3, 2019, 7 a.m. 18.0 ppb (17) 0.6 ppb (1) N/A 17.0 ppb (16) N/A N/A N/A 0.48 ppb (5) N/A 5.0 μg/m3 (21) 21.0
 
Oct. 3, 2019, 6 a.m. 19.1 ppb (18) 2.6 ppb (2) N/A 17.0 ppb (16) N/A N/A N/A 0.45 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
Oct. 3, 2019, 5 a.m. 21.5 ppb (20) 3.8 ppb (4) N/A 18.0 ppb (17) N/A N/A N/A 0.52 ppb (6) N/A 7.0 μg/m3 (29) 29.0
 
Oct. 3, 2019, 4 a.m. 28.4 ppb (26) 9.1 ppb (8) N/A 19.0 ppb (18) N/A N/A N/A 0.65 ppb (7) N/A 8.0 μg/m3 (33) 33.0
 
Oct. 3, 2019, 3 a.m. 25.9 ppb (24) 7.7 ppb (7) N/A 18.0 ppb (17) N/A N/A N/A 0.58 ppb (6) N/A 7.0 μg/m3 (29) 29.0
 
Oct. 3, 2019, 2 a.m. 22.7 ppb (21) 5.8 ppb (5) N/A 17.0 ppb (16) N/A N/A N/A 0.51 ppb (6) N/A 6.0 μg/m3 (25) 25.0
 
Oct. 3, 2019, 1 a.m. 19.6 ppb (18) 4.4 ppb (4) N/A 15.0 ppb (14) N/A N/A N/A 0.46 ppb (5) N/A 4.0 μg/m3 (17) 18.0
 
Oct. 3, 2019, midnight 16.6 ppb (15) 3.7 ppb (3) N/A 13.0 ppb (12) N/A N/A N/A 0.4 ppb (4) N/A 4.0 μg/m3 (17) 17.0
 
Oct. 2, 2019, 11 p.m. 20.4 ppb (19) 5.2 ppb (5) N/A 15.0 ppb (14) N/A N/A N/A 0.44 ppb (5) N/A 4.0 μg/m3 (17) 19.0
 
Oct. 2, 2019, 10 p.m. 18.4 ppb (17) 5.1 ppb (5) N/A 13.0 ppb (12) N/A N/A N/A 0.39 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Oct. 2, 2019, 9 p.m. 16.9 ppb (16) 5.3 ppb (5) N/A 12.0 ppb (11) N/A N/A N/A 0.35 ppb (4) N/A 1.0 μg/m3 (4) 16.0
 
Oct. 2, 2019, 8 p.m. 17.1 ppb (16) 5.1 ppb (5) N/A 12.0 ppb (11) N/A N/A N/A 0.37 ppb (4) N/A 0.0 μg/m3 (0) 16.0
 
Oct. 2, 2019, 7 p.m. 22.4 ppb (21) 7.3 ppb (7) N/A 15.0 ppb (14) N/A N/A N/A 0.38 ppb (4) N/A 0.0 μg/m3 (0) 21.0
 
Oct. 2, 2019, 6 p.m. 22.6 ppb (21) 8.1 ppb (8) N/A 15.0 ppb (14) N/A N/A N/A 0.4 ppb (4) N/A 0.0 μg/m3 (0) 21.0
 
Oct. 2, 2019, 5 p.m. 24.7 ppb (23) 9.1 ppb (8) N/A 16.0 ppb (15) N/A N/A N/A 0.44 ppb (5) N/A 3.0 μg/m3 (12) 23.0
 
Oct. 2, 2019, 4 p.m. 45.5 ppb (42) 22.1 ppb (20) N/A 23.0 ppb (21) N/A N/A N/A 0.67 ppb (7) N/A 7.0 μg/m3 (29) 42.0
 
Oct. 2, 2019, 3 p.m. 54.5 ppb (51) 29.4 ppb (27) N/A 25.0 ppb (23) N/A N/A N/A 0.71 ppb (8) N/A 9.0 μg/m3 (38) 51.0
 
Oct. 2, 2019, 2 p.m. 73.7 ppb (71) 49.6 ppb (46) N/A 24.0 ppb (22) N/A N/A N/A 1.11 ppb (12) N/A 9.0 μg/m3 (38) 71.0
 
Oct. 2, 2019, 1 p.m. 69.3 ppb (66) 45.5 ppb (42) N/A 24.0 ppb (22) N/A N/A N/A 0.89 ppb (10) N/A 7.0 μg/m3 (29) 66.0
 
Oct. 2, 2019, noon 45.6 ppb (42) 26.6 ppb (25) N/A 19.0 ppb (18) N/A N/A N/A 0.7 ppb (8) N/A 4.0 μg/m3 (17) 42.0
 
Oct. 2, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Oct. 2, 2019, 10 a.m. 20.8 ppb (19) 6.5 ppb (6) N/A 14.0 ppb (13) N/A N/A N/A 0.42 ppb (5) N/A 3.0 μg/m3 (12) 19.0
 
Oct. 2, 2019, 9 a.m. 20.2 ppb (19) 3.8 ppb (4) N/A 16.0 ppb (15) N/A N/A N/A 0.4 ppb (4) N/A 2.0 μg/m3 (8) 19.0
 
Oct. 2, 2019, 8 a.m. 22.3 ppb (21) 4.4 ppb (4) N/A 18.0 ppb (17) N/A N/A N/A 0.47 ppb (5) N/A 5.0 μg/m3 (21) 21.0
 
Oct. 2, 2019, 7 a.m. 13.2 ppb (12) 1.2 ppb (1) N/A 12.0 ppb (11) N/A N/A N/A 0.35 ppb (4) N/A 3.0 μg/m3 (12) 12.0
 
Oct. 2, 2019, 6 a.m. 12.4 ppb (11) 0.6 ppb (1) N/A 12.0 ppb (11) N/A N/A N/A 0.37 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Oct. 2, 2019, 5 a.m. 16.9 ppb (16) 0.6 ppb (1) N/A 16.0 ppb (15) N/A N/A N/A 0.45 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
Oct. 2, 2019, 4 a.m. 25.1 ppb (23) 6.4 ppb (6) N/A 19.0 ppb (18) N/A N/A N/A 0.52 ppb (6) N/A 2.0 μg/m3 (8) 23.0
 
Oct. 2, 2019, 3 a.m. 17.2 ppb (16) 3.0 ppb (3) N/A 14.0 ppb (13) N/A N/A N/A 0.39 ppb (4) N/A 1.0 μg/m3 (4) 16.0
 
Oct. 2, 2019, 2 a.m. 13.8 ppb (13) 2.2 ppb (2) N/A 12.0 ppb (11) N/A N/A N/A 0.39 ppb (4) N/A 2.0 μg/m3 (8) 13.0
 
Oct. 2, 2019, 1 a.m. 14.5 ppb (13) 3.3 ppb (3) N/A 11.0 ppb (10) N/A N/A N/A 0.39 ppb (4) N/A 4.0 μg/m3 (17) 17.0
 
Oct. 2, 2019, midnight 16.5 ppb (15) 4.3 ppb (4) N/A 12.0 ppb (11) N/A N/A N/A 0.41 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
Oct. 1, 2019, 11 p.m. 17.1 ppb (16) 4.6 ppb (4) N/A 13.0 ppb (12) N/A N/A N/A 0.43 ppb (5) N/A 4.0 μg/m3 (17) 17.0
 
Oct. 1, 2019, 10 p.m. 17.9 ppb (17) 5.1 ppb (5) N/A 13.0 ppb (12) N/A N/A N/A 0.42 ppb (5) N/A 4.0 μg/m3 (17) 17.0
 
Oct. 1, 2019, 9 p.m. 17.9 ppb (17) 5.8 ppb (5) N/A 12.0 ppb (11) N/A N/A N/A 0.37 ppb (4) N/A 3.0 μg/m3 (12) 17.0
 
Oct. 1, 2019, 8 p.m. 18.8 ppb (17) 7.0 ppb (6) N/A 12.0 ppb (11) N/A N/A N/A 0.36 ppb (4) N/A 2.0 μg/m3 (8) 17.0
 
Oct. 1, 2019, 7 p.m. 18.8 ppb (17) 7.5 ppb (7) N/A 11.0 ppb (10) N/A N/A N/A 0.36 ppb (4) N/A -2.0 μg/m3 (0) 17.0
 
Oct. 1, 2019, 6 p.m. 27.4 ppb (25) 11.3 ppb (10) N/A 16.0 ppb (15) N/A N/A N/A 0.4 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Oct. 1, 2019, 5 p.m. 32.7 ppb (30) 14.3 ppb (13) N/A 18.0 ppb (17) N/A N/A N/A 0.45 ppb (5) N/A 6.0 μg/m3 (25) 30.0
 
Oct. 1, 2019, 4 p.m. 35.7 ppb (33) 17.5 ppb (16) N/A 18.0 ppb (17) N/A N/A N/A 0.5 ppb (6) N/A 5.0 μg/m3 (21) 33.0