ID: 2411

AQSQID: 060850006

Site Name: San Jose - Knox Ave

Added: April 21, 2020, 6:24 p.m.

Updated: Oct. 31, 2020, 6:39 a.m.

Location: San Jose (E San Jose), CA

Reporting: True, Located: True

Current AQI: 64.0

San Jose (E San Jose) CA, US: 37.338202, -121.849892

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Oct. 31, 2020, 5 a.m. 28.7 ppb (28) 1.5 ppb (2) N/A 27.0 ppb (26) N/A N/A N/A 1.02 ppb (12) N/A 18.0 μg/m3 (64) 64.0
 
Oct. 31, 2020, 4 a.m. 28.6 ppb (27) 4.9 ppb (5) N/A 24.0 ppb (23) N/A N/A N/A 0.83 ppb (10) N/A 13.0 μg/m3 (53) 53.0
 
Oct. 31, 2020, 3 a.m. 23.6 ppb (23) 2.0 ppb (2) N/A 22.0 ppb (21) N/A N/A N/A 0.8 ppb (10) N/A 20.0 μg/m3 (68) 68.0
 
Oct. 31, 2020, 2 a.m. 38.3 ppb (37) 5.7 ppb (6) N/A 33.0 ppb (32) N/A N/A N/A 1.02 ppb (12) N/A 24.0 μg/m3 (77) 77.0
 
Oct. 31, 2020, 1 a.m. 33.9 ppb (32) 1.8 ppb (2) N/A 32.0 ppb (31) N/A N/A N/A 0.92 ppb (11) N/A 25.0 μg/m3 (79) 79.0
 
Oct. 31, 2020, midnight 28.3 ppb (27) 2.2 ppb (3) N/A 26.0 ppb (25) N/A N/A N/A 0.83 ppb (10) N/A 25.0 μg/m3 (79) 79.0
 
Oct. 30, 2020, 11 p.m. 27.9 ppb (27) 3.2 ppb (4) N/A 25.0 ppb (24) N/A N/A N/A 0.71 ppb (8) N/A 18.0 μg/m3 (64) 64.0
 
Oct. 30, 2020, 10 p.m. 28.1 ppb (27) 3.6 ppb (4) N/A 25.0 ppb (24) N/A N/A N/A 0.71 ppb (8) N/A 23.0 μg/m3 (74) 74.0
 
Oct. 30, 2020, 9 p.m. 24.6 ppb (24) 3.0 ppb (3) N/A 22.0 ppb (21) N/A N/A N/A 0.65 ppb (8) N/A 22.0 μg/m3 (72) 72.0
 
Oct. 30, 2020, 8 p.m. 29.6 ppb (28) 5.5 ppb (6) N/A 24.0 ppb (23) N/A N/A N/A 0.67 ppb (8) N/A 20.0 μg/m3 (68) 68.0
 
Oct. 30, 2020, 7 p.m. 43.6 ppb (42) 11.4 ppb (11) N/A 32.0 ppb (31) N/A N/A N/A 0.81 ppb (10) N/A 21.0 μg/m3 (70) 70.0
 
Oct. 30, 2020, 6 p.m. 49.3 ppb (47) 13.0 ppb (13) N/A 36.0 ppb (34) N/A N/A N/A 0.86 ppb (11) N/A 21.0 μg/m3 (70) 70.0
 
Oct. 30, 2020, 5 p.m. 47.7 ppb (45) 14.4 ppb (14) N/A 33.0 ppb (32) N/A N/A N/A 0.83 ppb (10) N/A 28.0 μg/m3 (85) 85.0
 
Oct. 30, 2020, 4 p.m. 72.9 ppb (72) 33.6 ppb (32) N/A 39.0 ppb (37) N/A N/A N/A 1.09 ppb (13) N/A 26.0 μg/m3 (81) 81.0
 
Oct. 30, 2020, 3 p.m. 85.9 ppb (85) 50.8 ppb (48) N/A 35.0 ppb (34) N/A N/A N/A 1.38 ppb (16) N/A 30.0 μg/m3 (89) 89.0
 
Oct. 30, 2020, 2 p.m. 87.2 ppb (87) 55.1 ppb (53) N/A 32.0 ppb (31) N/A N/A N/A 1.43 ppb (16) N/A 26.0 μg/m3 (81) 87.0
 
Oct. 30, 2020, 1 p.m. 53.5 ppb (51) 22.1 ppb (21) N/A 32.0 ppb (31) N/A N/A N/A 0.99 ppb (12) N/A 18.0 μg/m3 (64) 64.0
 
Oct. 30, 2020, noon 37.2 ppb (36) 10.0 ppb (10) N/A 27.0 ppb (26) N/A N/A N/A 0.78 ppb (10) N/A 20.0 μg/m3 (68) 68.0
 
Oct. 30, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (79) 79.0
 
Oct. 30, 2020, 10 a.m. 36.2 ppb (35) 8.3 ppb (8) N/A 28.0 ppb (27) N/A N/A N/A 0.82 ppb (10) N/A 24.0 μg/m3 (77) 77.0
 
Oct. 30, 2020, 9 a.m. 40.6 ppb (39) 7.8 ppb (8) N/A 33.0 ppb (32) N/A N/A N/A 0.96 ppb (12) N/A 24.0 μg/m3 (77) 77.0
 
Oct. 30, 2020, 8 a.m. 36.8 ppb (35) 5.6 ppb (6) N/A 31.0 ppb (30) N/A N/A N/A 0.97 ppb (12) N/A 25.0 μg/m3 (79) 79.0
 
Oct. 30, 2020, 7 a.m. 35.8 ppb (34) 3.8 ppb (4) N/A 32.0 ppb (31) N/A N/A N/A 0.94 ppb (11) N/A 27.0 μg/m3 (83) 83.0
 
Oct. 30, 2020, 6 a.m. 29.3 ppb (28) 0.2 ppb (1) N/A 29.0 ppb (28) N/A N/A N/A 0.83 ppb (10) N/A 40.0 μg/m3 (113) 113.0
 
Oct. 30, 2020, 5 a.m. 45.5 ppb (43) 3.2 ppb (4) N/A 42.0 ppb (40) N/A N/A N/A 1.04 ppb (12) N/A 21.0 μg/m3 (70) 70.0
 
Oct. 30, 2020, 4 a.m. 33.7 ppb (32) 1.6 ppb (2) N/A 32.0 ppb (31) N/A N/A N/A 0.82 ppb (10) N/A 18.0 μg/m3 (64) 64.0
 
Oct. 30, 2020, 3 a.m. 33.4 ppb (32) 4.2 ppb (4) N/A 29.0 ppb (28) N/A N/A N/A 0.8 ppb (10) N/A 15.0 μg/m3 (58) 58.0
 
Oct. 30, 2020, 2 a.m. 33.9 ppb (32) 3.5 ppb (4) N/A 30.0 ppb (29) N/A N/A N/A 0.85 ppb (10) N/A 15.0 μg/m3 (58) 58.0
 
Oct. 30, 2020, 1 a.m. 42.6 ppb (41) 3.0 ppb (3) N/A 40.0 ppb (38) N/A N/A N/A 0.94 ppb (11) N/A 25.0 μg/m3 (79) 79.0
 
Oct. 30, 2020, midnight 26.8 ppb (26) 0.9 ppb (1) N/A 26.0 ppb (25) N/A N/A N/A 0.72 ppb (8) N/A 21.0 μg/m3 (70) 70.0
 
Oct. 29, 2020, 11 p.m. 31.2 ppb (30) 2.6 ppb (3) N/A 29.0 ppb (28) N/A N/A N/A 0.74 ppb (8) N/A 23.0 μg/m3 (74) 74.0
 
Oct. 29, 2020, 10 p.m. 28.0 ppb (27) 2.9 ppb (3) N/A 25.0 ppb (24) N/A N/A N/A 0.69 ppb (8) N/A 21.0 μg/m3 (70) 70.0
 
Oct. 29, 2020, 9 p.m. 25.4 ppb (24) 3.1 ppb (3) N/A 22.0 ppb (21) N/A N/A N/A 0.59 ppb (7) N/A 19.0 μg/m3 (66) 66.0
 
Oct. 29, 2020, 8 p.m. 28.1 ppb (27) 3.8 ppb (4) N/A 24.0 ppb (23) N/A N/A N/A 0.6 ppb (7) N/A 18.0 μg/m3 (64) 64.0
 
Oct. 29, 2020, 7 p.m. 35.8 ppb (34) 5.7 ppb (6) N/A 30.0 ppb (29) N/A N/A N/A 0.66 ppb (8) N/A 23.0 μg/m3 (74) 74.0
 
Oct. 29, 2020, 6 p.m. 52.2 ppb (50) 13.0 ppb (13) N/A 39.0 ppb (37) N/A N/A N/A 0.77 ppb (10) N/A 22.0 μg/m3 (72) 72.0
 
Oct. 29, 2020, 5 p.m. 64.1 ppb (62) 24.3 ppb (23) N/A 40.0 ppb (38) N/A N/A N/A 0.85 ppb (10) N/A 20.0 μg/m3 (68) 68.0
 
Oct. 29, 2020, 4 p.m. 70.5 ppb (69) 32.1 ppb (31) N/A 38.0 ppb (36) N/A N/A N/A 0.95 ppb (11) N/A 23.0 μg/m3 (74) 74.0
 
Oct. 29, 2020, 3 p.m. 76.7 ppb (76) 42.3 ppb (40) N/A 34.0 ppb (33) N/A N/A N/A 1.18 ppb (14) N/A 26.0 μg/m3 (81) 81.0
 
Oct. 29, 2020, 2 p.m. 88.6 ppb (88) 57.6 ppb (55) N/A 31.0 ppb (30) N/A N/A N/A 1.4 ppb (16) N/A 21.0 μg/m3 (70) 88.0
 
Oct. 29, 2020, 1 p.m. 57.8 ppb (56) 29.6 ppb (28) N/A 28.0 ppb (27) N/A N/A N/A 0.97 ppb (12) N/A 17.0 μg/m3 (62) 62.0
 
Oct. 29, 2020, noon 52.9 ppb (50) 23.0 ppb (22) N/A 30.0 ppb (29) N/A N/A N/A 0.94 ppb (11) N/A 22.0 μg/m3 (72) 72.0
 
Oct. 29, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (68) 68.0
 
Oct. 29, 2020, 10 a.m. 26.8 ppb (26) 5.6 ppb (6) N/A 21.0 ppb (20) N/A N/A N/A 0.56 ppb (7) N/A 16.0 μg/m3 (60) 60.0
 
Oct. 29, 2020, 9 a.m. 25.5 ppb (25) 1.8 ppb (2) N/A 24.0 ppb (23) N/A N/A N/A 0.63 ppb (7) N/A 11.0 μg/m3 (46) 46.0
 
Oct. 29, 2020, 8 a.m. 38.3 ppb (37) 6.4 ppb (7) N/A 32.0 ppb (31) N/A N/A N/A 0.79 ppb (10) N/A 20.0 μg/m3 (68) 68.0
 
Oct. 29, 2020, 7 a.m. 24.9 ppb (24) 1.4 ppb (2) N/A 24.0 ppb (23) N/A N/A N/A 0.65 ppb (8) N/A 18.0 μg/m3 (64) 64.0
 
Oct. 29, 2020, 6 a.m. 39.4 ppb (38) 4.8 ppb (5) N/A 35.0 ppb (34) N/A N/A N/A 0.89 ppb (11) N/A 20.0 μg/m3 (68) 68.0
 
Oct. 29, 2020, 5 a.m. 55.4 ppb (53) 16.8 ppb (16) N/A 39.0 ppb (37) N/A N/A N/A 1.2 ppb (14) N/A 19.0 μg/m3 (66) 66.0
 
Oct. 29, 2020, 4 a.m. 69.9 ppb (68) 22.2 ppb (21) N/A 48.0 ppb (46) N/A N/A N/A 1.34 ppb (15) N/A 22.0 μg/m3 (72) 72.0
 
Oct. 29, 2020, 3 a.m. 46.7 ppb (45) 4.5 ppb (5) N/A 42.0 ppb (40) N/A N/A N/A 0.97 ppb (12) N/A 15.0 μg/m3 (58) 58.0
 
Oct. 29, 2020, 2 a.m. 47.4 ppb (45) 8.2 ppb (8) N/A 39.0 ppb (37) N/A N/A N/A 0.95 ppb (11) N/A 16.0 μg/m3 (60) 60.0
 
Oct. 29, 2020, 1 a.m. 44.3 ppb (42) 7.3 ppb (7) N/A 37.0 ppb (35) N/A N/A N/A 0.96 ppb (12) N/A 18.0 μg/m3 (64) 64.0
 
Oct. 29, 2020, midnight 28.5 ppb (27) 3.8 ppb (4) N/A 25.0 ppb (24) N/A N/A N/A 0.7 ppb (8) N/A 19.0 μg/m3 (66) 66.0
 
Oct. 28, 2020, 11 p.m. 24.5 ppb (24) 3.2 ppb (4) N/A 21.0 ppb (20) N/A N/A N/A 0.57 ppb (7) N/A 11.0 μg/m3 (46) 46.0
 
Oct. 28, 2020, 10 p.m. 27.5 ppb (26) 4.2 ppb (4) N/A 23.0 ppb (22) N/A N/A N/A 0.54 ppb (6) N/A 12.0 μg/m3 (50) 50.0
 
Oct. 28, 2020, 9 p.m. 31.7 ppb (30) 6.2 ppb (6) N/A 26.0 ppb (25) N/A N/A N/A 0.55 ppb (7) N/A 12.0 μg/m3 (50) 50.0
 
Oct. 28, 2020, 8 p.m. 27.0 ppb (26) 4.9 ppb (5) N/A 22.0 ppb (21) N/A N/A N/A 0.49 ppb (6) N/A 13.0 μg/m3 (53) 53.0
 
Oct. 28, 2020, 7 p.m. 28.0 ppb (27) 6.3 ppb (6) N/A 22.0 ppb (21) N/A N/A N/A 0.47 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Oct. 28, 2020, 6 p.m. 34.1 ppb (33) 9.3 ppb (9) N/A 25.0 ppb (24) N/A N/A N/A 0.52 ppb (6) N/A 12.0 μg/m3 (50) 50.0
 
Oct. 28, 2020, 5 p.m. 63.4 ppb (62) 27.5 ppb (26) N/A 36.0 ppb (34) N/A N/A N/A 0.92 ppb (11) N/A 16.0 μg/m3 (60) 62.0
 
Oct. 28, 2020, 4 p.m. 70.4 ppb (69) 35.1 ppb (34) N/A 35.0 ppb (34) N/A N/A N/A 0.84 ppb (10) N/A 14.0 μg/m3 (55) 69.0
 
Oct. 28, 2020, 3 p.m. 105.1 ppb (102) 70.0 ppb (69) N/A 35.0 ppb (34) N/A N/A N/A 1.34 ppb (15) N/A 16.0 μg/m3 (60) 102.0
 
Oct. 28, 2020, 2 p.m. 76.8 ppb (76) 48.0 ppb (46) N/A 29.0 ppb (28) N/A N/A N/A 1.06 ppb (13) N/A 16.0 μg/m3 (60) 76.0
 
Oct. 28, 2020, 1 p.m. 59.3 ppb (57) 32.8 ppb (31) N/A 27.0 ppb (26) N/A N/A N/A 0.97 ppb (12) N/A 9.0 μg/m3 (38) 57.0
 
Oct. 28, 2020, noon 40.2 ppb (38) 13.5 ppb (13) N/A 27.0 ppb (26) N/A N/A N/A 0.63 ppb (7) N/A 11.0 μg/m3 (46) 46.0
 
Oct. 28, 2020, 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. 28, 2020, 10 a.m. 24.2 ppb (23) 1.2 ppb (2) N/A 23.0 ppb (22) N/A N/A N/A 0.52 ppb (6) N/A 22.0 μg/m3 (72) 72.0
 
Oct. 28, 2020, 9 a.m. 25.7 ppb (25) 4.1 ppb (4) N/A 22.0 ppb (21) N/A N/A N/A 0.45 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Oct. 28, 2020, 8 a.m. 25.0 ppb (24) 2.2 ppb (3) N/A 23.0 ppb (22) N/A N/A N/A 0.5 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Oct. 28, 2020, 7 a.m. 27.8 ppb (27) 4.7 ppb (5) N/A 23.0 ppb (22) N/A N/A N/A 0.57 ppb (7) N/A 11.0 μg/m3 (46) 46.0
 
Oct. 28, 2020, 6 a.m. 21.3 ppb (21) 0.5 ppb (1) N/A 21.0 ppb (20) N/A N/A N/A 0.5 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Oct. 28, 2020, 5 a.m. 37.4 ppb (36) 5.9 ppb (6) N/A 32.0 ppb (31) N/A N/A N/A 0.76 ppb (10) N/A 14.0 μg/m3 (55) 55.0
 
Oct. 28, 2020, 4 a.m. 33.5 ppb (32) 2.2 ppb (3) N/A 31.0 ppb (30) N/A N/A N/A 0.75 ppb (10) N/A 12.0 μg/m3 (50) 50.0
 
Oct. 28, 2020, 3 a.m. 39.2 ppb (37) 6.5 ppb (7) N/A 33.0 ppb (32) N/A N/A N/A 0.74 ppb (8) N/A 13.0 μg/m3 (53) 53.0
 
Oct. 28, 2020, 2 a.m. 30.2 ppb (29) 3.4 ppb (4) N/A 27.0 ppb (26) N/A N/A N/A 0.65 ppb (8) N/A 10.0 μg/m3 (42) 42.0
 
Oct. 28, 2020, 1 a.m. 21.8 ppb (21) 1.7 ppb (2) N/A 20.0 ppb (19) N/A N/A N/A 0.53 ppb (6) N/A 8.0 μg/m3 (34) 34.0
 
Oct. 28, 2020, midnight 16.0 ppb (16) 2.1 ppb (2) N/A 14.0 ppb (14) N/A N/A N/A 0.42 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Oct. 27, 2020, 11 p.m. 12.6 ppb (12) 2.3 ppb (3) N/A 10.0 ppb (10) N/A N/A N/A 0.35 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
Oct. 27, 2020, 10 p.m. 15.1 ppb (15) 3.5 ppb (4) N/A 12.0 ppb (12) N/A N/A N/A 0.36 ppb (5) N/A 3.0 μg/m3 (13) 15.0
 
Oct. 27, 2020, 9 p.m. 14.0 ppb (14) 3.0 ppb (3) N/A 11.0 ppb (11) N/A N/A N/A 0.33 ppb (4) N/A 2.0 μg/m3 (9) 14.0
 
Oct. 27, 2020, 8 p.m. 15.1 ppb (15) 3.0 ppb (3) N/A 12.0 ppb (12) N/A N/A N/A 0.35 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Oct. 27, 2020, 7 p.m. 23.5 ppb (23) 6.9 ppb (7) N/A 17.0 ppb (17) N/A N/A N/A 0.41 ppb (5) N/A 7.0 μg/m3 (30) 30.0
 
Oct. 27, 2020, 6 p.m. 33.1 ppb (32) 10.0 ppb (10) N/A 23.0 ppb (22) N/A N/A N/A 0.5 ppb (6) N/A 6.0 μg/m3 (25) 32.0
 
Oct. 27, 2020, 5 p.m. 32.6 ppb (31) 9.7 ppb (10) N/A 23.0 ppb (22) N/A N/A N/A 0.46 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Oct. 27, 2020, 4 p.m. 53.1 ppb (51) 23.8 ppb (23) N/A 29.0 ppb (28) N/A N/A N/A 0.62 ppb (7) N/A 11.0 μg/m3 (46) 51.0
 
Oct. 27, 2020, 3 p.m. 86.1 ppb (86) 49.9 ppb (48) N/A 36.0 ppb (34) N/A N/A N/A 1.07 ppb (13) N/A 14.0 μg/m3 (55) 86.0
 
Oct. 27, 2020, 2 p.m. 86.3 ppb (86) 49.6 ppb (47) N/A 37.0 ppb (35) N/A N/A N/A 1.17 ppb (14) N/A 13.0 μg/m3 (53) 86.0
 
Oct. 27, 2020, 1 p.m. 54.1 ppb (52) 21.7 ppb (21) N/A 32.0 ppb (31) N/A N/A N/A 0.74 ppb (8) N/A 11.0 μg/m3 (46) 52.0
 
Oct. 27, 2020, noon 36.7 ppb (35) 10.2 ppb (10) N/A 27.0 ppb (26) N/A N/A N/A 0.57 ppb (7) N/A 9.0 μg/m3 (38) 38.0
 
Oct. 27, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
Oct. 27, 2020, 10 a.m. 30.1 ppb (29) 6.8 ppb (7) N/A 23.0 ppb (22) N/A N/A N/A 0.48 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
Oct. 27, 2020, 9 a.m. 19.5 ppb (19) 1.5 ppb (2) N/A 18.0 ppb (17) N/A N/A N/A 0.5 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
Oct. 27, 2020, 8 a.m. 29.4 ppb (28) 3.6 ppb (4) N/A 26.0 ppb (25) N/A N/A N/A 0.63 ppb (7) N/A 9.0 μg/m3 (38) 38.0
 
Oct. 27, 2020, 7 a.m. 38.7 ppb (37) 7.2 ppb (7) N/A 32.0 ppb (31) N/A N/A N/A 0.75 ppb (10) N/A 16.0 μg/m3 (60) 60.0
 
Oct. 27, 2020, 6 a.m. 37.0 ppb (35) 4.7 ppb (5) N/A 32.0 ppb (31) N/A N/A N/A 0.78 ppb (10) N/A 14.0 μg/m3 (55) 55.0
 
Oct. 27, 2020, 5 a.m. 42.1 ppb (40) 5.7 ppb (6) N/A 36.0 ppb (34) N/A N/A N/A 0.8 ppb (10) N/A 13.0 μg/m3 (53) 53.0
 
Oct. 27, 2020, 4 a.m. 35.4 ppb (34) 3.5 ppb (4) N/A 32.0 ppb (31) N/A N/A N/A 0.71 ppb (8) N/A 14.0 μg/m3 (55) 55.0
 
Oct. 27, 2020, 3 a.m. 37.7 ppb (36) 5.4 ppb (6) N/A 32.0 ppb (31) N/A N/A N/A 0.72 ppb (8) N/A 14.0 μg/m3 (55) 55.0
 
Oct. 27, 2020, 2 a.m. 17.0 ppb (17) 0.9 ppb (1) N/A 16.0 ppb (16) N/A N/A N/A 0.45 ppb (6) N/A 2.0 μg/m3 (9) 17.0
 
Oct. 27, 2020, 1 a.m. 33.4 ppb (32) 5.1 ppb (5) N/A 28.0 ppb (27) N/A N/A N/A 0.64 ppb (7) N/A 20.0 μg/m3 (68) 68.0
 
Oct. 27, 2020, midnight 24.5 ppb (24) 3.5 ppb (4) N/A 21.0 ppb (20) N/A N/A N/A 0.52 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Oct. 26, 2020, 11 p.m. 13.5 ppb (13) 1.8 ppb (2) N/A 12.0 ppb (12) N/A N/A N/A 0.36 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Oct. 26, 2020, 10 p.m. 19.9 ppb (19) 4.3 ppb (5) N/A 16.0 ppb (16) N/A N/A N/A 0.42 ppb (5) N/A 8.0 μg/m3 (34) 34.0
 
Oct. 26, 2020, 9 p.m. 23.5 ppb (23) 6.4 ppb (7) N/A 17.0 ppb (17) N/A N/A N/A 0.39 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
Oct. 26, 2020, 8 p.m. 20.9 ppb (20) 5.7 ppb (6) N/A 15.0 ppb (15) N/A N/A N/A 0.34 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Oct. 26, 2020, 7 p.m. 12.7 ppb (12) 2.9 ppb (3) N/A 10.0 ppb (10) N/A N/A N/A 0.29 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Oct. 26, 2020, 6 p.m. 13.8 ppb (14) 3.3 ppb (4) N/A 11.0 ppb (11) N/A N/A N/A 0.27 ppb (4) N/A N/A 14.0
 
Oct. 26, 2020, 5 p.m. 20.8 ppb (20) 6.6 ppb (7) N/A 14.0 ppb (14) N/A N/A N/A 0.3 ppb (4) N/A N/A 20.0
 
Oct. 26, 2020, 4 p.m. 9.2 ppb (9) 1.6 ppb (2) N/A 8.0 ppb (8) N/A N/A N/A 0.24 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Oct. 26, 2020, 3 p.m. 16.1 ppb (16) 3.8 ppb (4) N/A 12.0 ppb (12) N/A N/A N/A 0.28 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Oct. 26, 2020, 2 p.m. 18.3 ppb (18) 4.5 ppb (5) N/A 14.0 ppb (14) N/A N/A N/A 0.29 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Oct. 26, 2020, 1 p.m. 12.6 ppb (12) 2.8 ppb (3) N/A 10.0 ppb (10) N/A N/A N/A 0.24 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
Oct. 26, 2020, noon 8.3 ppb (8) 1.8 ppb (2) N/A 7.0 ppb (7) N/A N/A N/A 0.21 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Oct. 26, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
Oct. 26, 2020, 10 a.m. 1.7 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A 0.16 ppb (3) N/A 15.0 μg/m3 (58) 58.0
 
Oct. 26, 2020, 9 a.m. 2.9 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A 0.16 ppb (3) N/A 20.0 μg/m3 (68) 68.0
 
Oct. 26, 2020, 8 a.m. 1.2 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A 0.17 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Oct. 26, 2020, 7 a.m. 3.0 ppb (3) 0.5 ppb (1) N/A 3.0 ppb (3) N/A N/A N/A 0.19 ppb (3) N/A 19.0 μg/m3 (66) 66.0
 
Oct. 26, 2020, 6 a.m. 4.7 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.3 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
Oct. 26, 2020, 5 a.m. 11.9 ppb (12) 0.9 ppb (1) N/A 11.0 ppb (11) N/A N/A N/A 0.49 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
Oct. 26, 2020, 4 a.m. 15.2 ppb (15) 2.7 ppb (3) N/A 13.0 ppb (13) N/A N/A N/A 0.56 ppb (7) N/A 10.0 μg/m3 (42) 42.0
 
Oct. 26, 2020, 3 a.m. 12.7 ppb (12) 1.9 ppb (2) N/A 11.0 ppb (11) N/A N/A N/A 0.44 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Oct. 26, 2020, 2 a.m. 7.3 ppb (7) 0.6 ppb (1) N/A 7.0 ppb (7) N/A N/A N/A 0.31 ppb (4) N/A 18.0 μg/m3 (64) 64.0
 
Oct. 26, 2020, 1 a.m. 9.7 ppb (10) 1.1 ppb (2) N/A 9.0 ppb (9) N/A N/A N/A 0.41 ppb (5) N/A 15.0 μg/m3 (58) 58.0
 
Oct. 26, 2020, midnight 6.4 ppb (7) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A N/A 0.38 ppb (5) N/A 8.0 μg/m3 (34) 34.0
 
Oct. 25, 2020, 11 p.m. 8.3 ppb (8) 1.4 ppb (2) N/A 7.0 ppb (7) N/A N/A N/A 0.43 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
Oct. 25, 2020, 10 p.m. 8.6 ppb (9) 1.6 ppb (2) N/A 7.0 ppb (7) N/A N/A N/A 0.45 ppb (6) N/A 7.0 μg/m3 (30) 30.0
 
Oct. 25, 2020, 9 p.m. 8.1 ppb (8) 1.7 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A 0.42 ppb (5) N/A 7.0 μg/m3 (30) 30.0
 
Oct. 25, 2020, 8 p.m. 7.4 ppb (7) 1.7 ppb (2) N/A 6.0 ppb (6) N/A N/A N/A 0.4 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Oct. 25, 2020, 7 p.m. 9.6 ppb (10) 2.6 ppb (3) N/A 7.0 ppb (7) N/A N/A N/A 0.44 ppb (5) N/A 8.0 μg/m3 (34) 34.0
 
Oct. 25, 2020, 6 p.m. 10.4 ppb (10) 3.2 ppb (4) N/A 7.0 ppb (7) N/A N/A N/A 0.43 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
Oct. 25, 2020, 5 p.m. 9.8 ppb (10) 2.8 ppb (3) N/A 7.0 ppb (7) N/A N/A N/A 0.46 ppb (6) N/A 8.0 μg/m3 (34) 34.0
 
Oct. 25, 2020, 4 p.m. 11.9 ppb (12) 3.7 ppb (4) N/A 8.0 ppb (8) N/A N/A N/A 0.47 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
Oct. 25, 2020, 3 p.m. 16.0 ppb (16) 5.2 ppb (5) N/A 11.0 ppb (11) N/A N/A N/A 0.49 ppb (6) N/A 8.0 μg/m3 (34) 34.0
 
Oct. 25, 2020, 2 p.m. 15.9 ppb (15) 4.9 ppb (5) N/A 11.0 ppb (11) N/A N/A N/A 0.48 ppb (6) N/A 12.0 μg/m3 (50) 50.0
 
Oct. 25, 2020, 1 p.m. 9.0 ppb (9) 1.5 ppb (2) N/A 8.0 ppb (8) N/A N/A N/A 0.42 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Oct. 25, 2020, noon 8.7 ppb (9) 1.6 ppb (2) N/A 7.0 ppb (7) N/A N/A N/A 0.42 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Oct. 25, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
Oct. 25, 2020, 10 a.m. 8.2 ppb (8) 1.1 ppb (2) N/A 7.0 ppb (7) N/A N/A N/A 0.44 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
Oct. 25, 2020, 9 a.m. 10.3 ppb (10) 0.8 ppb (1) N/A 10.0 ppb (10) N/A N/A N/A 0.51 ppb (6) N/A 16.0 μg/m3 (60) 60.0
 
Oct. 25, 2020, 8 a.m. 15.5 ppb (15) 1.6 ppb (2) N/A 14.0 ppb (14) N/A N/A N/A 0.65 ppb (8) N/A 10.0 μg/m3 (42) 42.0
 
Oct. 25, 2020, 7 a.m. 22.1 ppb (21) 3.5 ppb (4) N/A 19.0 ppb (18) N/A N/A N/A 0.81 ppb (10) N/A 12.0 μg/m3 (50) 50.0
 
Oct. 25, 2020, 6 a.m. 13.5 ppb (13) -0.1 ppb (0) N/A 14.0 ppb (14) N/A N/A N/A 0.62 ppb (7) N/A 8.0 μg/m3 (34) 34.0
 
Oct. 25, 2020, 5 a.m. 12.6 ppb (12) 1.1 ppb (2) N/A 12.0 ppb (12) N/A N/A N/A 0.57 ppb (7) N/A 9.0 μg/m3 (38) 38.0
 
Oct. 25, 2020, 4 a.m. 7.0 ppb (7) 0.1 ppb (1) N/A 7.0 ppb (7) N/A N/A N/A 0.43 ppb (5) N/A 8.0 μg/m3 (34) 34.0
 
Oct. 25, 2020, 3 a.m. 6.9 ppb (7) 0.2 ppb (1) N/A 7.0 ppb (7) N/A N/A N/A 0.44 ppb (5) N/A 8.0 μg/m3 (34) 34.0
 
Oct. 25, 2020, 2 a.m. 6.5 ppb (7) -0.1 ppb (0) N/A 7.0 ppb (7) N/A N/A N/A 0.4 ppb (5) N/A 15.0 μg/m3 (58) 58.0
 
Oct. 25, 2020, 1 a.m. 12.5 ppb (12) 1.6 ppb (2) N/A 11.0 ppb (11) N/A N/A N/A 0.53 ppb (6) N/A 8.0 μg/m3 (34) 34.0
 
Oct. 25, 2020, midnight 12.6 ppb (12) 1.7 ppb (2) N/A 11.0 ppb (11) N/A N/A N/A 0.53 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Oct. 24, 2020, 11 p.m. 11.6 ppb (11) 1.9 ppb (2) N/A 10.0 ppb (10) N/A N/A N/A 0.52 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Oct. 24, 2020, 10 p.m. 10.4 ppb (10) 1.7 ppb (2) N/A 9.0 ppb (9) N/A N/A N/A 0.48 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
Oct. 24, 2020, 9 p.m. 9.5 ppb (9) 1.6 ppb (2) N/A 8.0 ppb (8) N/A N/A N/A 0.44 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
Oct. 24, 2020, 8 p.m. 9.4 ppb (9) 1.6 ppb (2) N/A 8.0 ppb (8) N/A N/A N/A 0.45 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
Oct. 24, 2020, 7 p.m. 15.1 ppb (15) 3.5 ppb (4) N/A 12.0 ppb (12) N/A N/A N/A 0.53 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
Oct. 24, 2020, 6 p.m. 11.9 ppb (12) 3.0 ppb (3) N/A 9.0 ppb (9) N/A N/A N/A 0.46 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
Oct. 24, 2020, 5 p.m. 15.5 ppb (15) 4.8 ppb (5) N/A 11.0 ppb (11) N/A N/A N/A 0.52 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
Oct. 24, 2020, 4 p.m. 23.6 ppb (23) 9.6 ppb (10) N/A 14.0 ppb (14) N/A N/A N/A 0.65 ppb (8) N/A 14.0 μg/m3 (55) 55.0
 
Oct. 24, 2020, 3 p.m. 39.1 ppb (37) 20.3 ppb (20) N/A 19.0 ppb (18) N/A N/A N/A 0.8 ppb (10) N/A 14.0 μg/m3 (55) 55.0
 
Oct. 24, 2020, 2 p.m. 25.8 ppb (25) 7.9 ppb (8) N/A 18.0 ppb (17) N/A N/A N/A 0.64 ppb (7) N/A 9.0 μg/m3 (38) 38.0
 
Oct. 24, 2020, 1 p.m. 30.3 ppb (29) 12.8 ppb (13) N/A 18.0 ppb (17) N/A N/A N/A 0.68 ppb (8) N/A 11.0 μg/m3 (46) 46.0
 
Oct. 24, 2020, noon 18.2 ppb (18) 2.6 ppb (3) N/A 16.0 ppb (16) N/A N/A N/A 0.51 ppb (6) N/A 12.0 μg/m3 (50) 50.0
 
Oct. 24, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
Oct. 24, 2020, 10 a.m. 10.5 ppb (10) 1.3 ppb (2) N/A 9.0 ppb (9) N/A N/A N/A 0.42 ppb (5) N/A 14.0 μg/m3 (55) 55.0
 
Oct. 24, 2020, 9 a.m. 8.8 ppb (9) -0.2 ppb (0) N/A 9.0 ppb (9) N/A N/A N/A 0.43 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
Oct. 24, 2020, 8 a.m. 11.8 ppb (12) -0.1 ppb (0) N/A 12.0 ppb (12) N/A N/A N/A 0.52 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
Oct. 24, 2020, 7 a.m. 23.8 ppb (23) 1.9 ppb (2) N/A 22.0 ppb (21) N/A N/A N/A 0.82 ppb (10) N/A 13.0 μg/m3 (53) 53.0
 
Oct. 24, 2020, 6 a.m. 22.2 ppb (21) 1.3 ppb (2) N/A 21.0 ppb (20) N/A N/A N/A 0.75 ppb (10) N/A 16.0 μg/m3 (60) 60.0