ID: 2411

AQSQID: 060850006

Site Name: San Jose - Knox Ave

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

Updated: Jan. 18, 2021, 10:31 p.m.

Location: San Jose (E San Jose), CA

Reporting: True, Located: True

Current AQI: 9.0

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
Jan. 18, 2021, 9 p.m. 5.3 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.27 ppb (4) N/A 2.0 μg/m3 (9) 9.0
 
Jan. 18, 2021, 8 p.m. 4.8 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.26 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 18, 2021, 7 p.m. 5.4 ppb (6) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A N/A 0.26 ppb (4) N/A 7.0 μg/m3 (30) 30.0
 
Jan. 18, 2021, 6 p.m. 14.3 ppb (14) 4.3 ppb (5) N/A 10.0 ppb (10) N/A N/A N/A 0.34 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 18, 2021, 5 p.m. 6.1 ppb (6) 1.5 ppb (2) N/A 5.0 ppb (5) N/A N/A N/A 0.26 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 18, 2021, 4 p.m. 11.3 ppb (11) 2.4 ppb (3) N/A 9.0 ppb (9) N/A N/A N/A 0.32 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 18, 2021, 3 p.m. 14.7 ppb (14) 3.0 ppb (3) N/A 12.0 ppb (12) N/A N/A N/A 0.34 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 18, 2021, 2 p.m. 10.2 ppb (10) 2.2 ppb (3) N/A 8.0 ppb (8) N/A N/A N/A 0.31 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 18, 2021, 1 p.m. 6.0 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A N/A 0.3 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
Jan. 18, 2021, noon 12.3 ppb (12) 0.6 ppb (1) N/A 12.0 ppb (12) N/A N/A N/A 0.41 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 18, 2021, 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 (34) 34.0
 
Jan. 18, 2021, 10 a.m. 27.9 ppb (27) 6.6 ppb (7) N/A 21.0 ppb (20) N/A N/A N/A 0.68 ppb (8) N/A 18.0 μg/m3 (64) 64.0
 
Jan. 18, 2021, 9 a.m. 30.0 ppb (29) 7.9 ppb (8) N/A 22.0 ppb (21) N/A N/A N/A 0.78 ppb (10) N/A 14.0 μg/m3 (55) 55.0
 
Jan. 18, 2021, 8 a.m. 36.8 ppb (35) 14.4 ppb (14) N/A 22.0 ppb (21) N/A N/A N/A 0.82 ppb (10) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 18, 2021, 7 a.m. 41.8 ppb (40) 17.6 ppb (17) N/A 24.0 ppb (23) N/A N/A N/A 0.99 ppb (12) N/A 21.0 μg/m3 (70) 70.0
 
Jan. 18, 2021, 6 a.m. 45.3 ppb (43) 20.4 ppb (20) N/A 25.0 ppb (24) N/A N/A N/A 1.07 ppb (13) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 18, 2021, 5 a.m. 50.6 ppb (48) 23.5 ppb (23) N/A 27.0 ppb (26) N/A N/A N/A 1.21 ppb (14) N/A 20.0 μg/m3 (68) 68.0
 
Jan. 18, 2021, 4 a.m. 48.9 ppb (47) 19.2 ppb (19) N/A 30.0 ppb (29) N/A N/A N/A 1.23 ppb (14) N/A 22.0 μg/m3 (72) 72.0
 
Jan. 18, 2021, 3 a.m. 40.8 ppb (39) 11.1 ppb (11) N/A 30.0 ppb (29) N/A N/A N/A 1.04 ppb (12) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 18, 2021, 2 a.m. 32.3 ppb (31) 6.4 ppb (7) N/A 26.0 ppb (25) N/A N/A N/A 0.86 ppb (11) N/A 18.0 μg/m3 (64) 64.0
 
Jan. 18, 2021, 1 a.m. 18.4 ppb (18) 1.0 ppb (1) N/A 17.0 ppb (17) N/A N/A N/A 0.59 ppb (7) N/A 4.0 μg/m3 (17) 18.0
 
Jan. 18, 2021, midnight 19.1 ppb (19) 3.8 ppb (4) N/A 15.0 ppb (15) N/A N/A N/A 0.67 ppb (8) N/A 4.0 μg/m3 (17) 19.0
 
Jan. 17, 2021, 11 p.m. 17.9 ppb (17) 5.4 ppb (6) N/A 13.0 ppb (13) N/A N/A N/A 0.56 ppb (7) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 17, 2021, 10 p.m. 13.0 ppb (13) 3.9 ppb (4) N/A 9.0 ppb (9) N/A N/A N/A 0.5 ppb (6) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 17, 2021, 9 p.m. 15.3 ppb (15) 4.5 ppb (5) N/A 11.0 ppb (11) N/A N/A N/A 0.53 ppb (6) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 17, 2021, 8 p.m. 16.9 ppb (16) 4.9 ppb (5) N/A 12.0 ppb (12) N/A N/A N/A 0.54 ppb (6) N/A 8.0 μg/m3 (34) 34.0
 
Jan. 17, 2021, 7 p.m. 16.4 ppb (16) 5.1 ppb (5) N/A 11.0 ppb (11) N/A N/A N/A 0.55 ppb (7) N/A 8.0 μg/m3 (34) 34.0
 
Jan. 17, 2021, 6 p.m. 18.6 ppb (18) 6.8 ppb (7) N/A 12.0 ppb (12) N/A N/A N/A 0.54 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 17, 2021, 5 p.m. 41.9 ppb (40) 23.8 ppb (23) N/A 18.0 ppb (17) N/A N/A N/A 0.9 ppb (11) N/A 14.0 μg/m3 (55) 55.0
 
Jan. 17, 2021, 4 p.m. 42.7 ppb (41) 26.3 ppb (25) N/A 16.0 ppb (16) N/A N/A N/A 0.83 ppb (10) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 17, 2021, 3 p.m. 41.0 ppb (39) 27.9 ppb (27) N/A 13.0 ppb (13) N/A N/A N/A 0.81 ppb (10) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 17, 2021, 2 p.m. 47.4 ppb (45) 33.8 ppb (32) N/A 14.0 ppb (14) N/A N/A N/A 0.95 ppb (11) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 17, 2021, 1 p.m. 32.8 ppb (31) 19.5 ppb (19) N/A 13.0 ppb (13) N/A N/A N/A 0.81 ppb (10) N/A 23.0 μg/m3 (74) 74.0
 
Jan. 17, 2021, noon 34.7 ppb (33) 19.8 ppb (19) N/A 15.0 ppb (15) N/A N/A N/A 0.86 ppb (11) N/A 19.0 μg/m3 (66) 66.0
 
Jan. 17, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (72) 72.0
 
Jan. 17, 2021, 10 a.m. 44.2 ppb (42) 27.9 ppb (27) N/A 16.0 ppb (16) N/A N/A N/A 1.09 ppb (13) N/A 18.0 μg/m3 (64) 64.0
 
Jan. 17, 2021, 9 a.m. 41.8 ppb (40) 25.7 ppb (25) N/A 16.0 ppb (16) N/A N/A N/A 1.09 ppb (13) N/A 26.0 μg/m3 (81) 81.0
 
Jan. 17, 2021, 8 a.m. 44.5 ppb (42) 27.2 ppb (26) N/A 17.0 ppb (17) N/A N/A N/A 1.2 ppb (14) N/A 21.0 μg/m3 (70) 70.0
 
Jan. 17, 2021, 7 a.m. 35.4 ppb (34) 17.9 ppb (17) N/A 18.0 ppb (17) N/A N/A N/A 1.0 ppb (12) N/A 20.0 μg/m3 (68) 68.0
 
Jan. 17, 2021, 6 a.m. 28.0 ppb (27) 9.5 ppb (9) N/A 19.0 ppb (18) N/A N/A N/A 0.88 ppb (11) N/A 20.0 μg/m3 (68) 68.0
 
Jan. 17, 2021, 5 a.m. 41.6 ppb (40) 20.2 ppb (20) N/A 21.0 ppb (20) N/A N/A N/A 1.21 ppb (14) N/A 20.0 μg/m3 (68) 68.0
 
Jan. 17, 2021, 4 a.m. 29.1 ppb (28) 6.0 ppb (6) N/A 23.0 ppb (22) N/A N/A N/A 0.99 ppb (12) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 17, 2021, 3 a.m. 34.2 ppb (33) 11.1 ppb (11) N/A 23.0 ppb (22) N/A N/A N/A 1.16 ppb (14) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 17, 2021, 2 a.m. 41.6 ppb (40) 14.6 ppb (14) N/A 27.0 ppb (26) N/A N/A N/A 1.13 ppb (13) N/A 23.0 μg/m3 (74) 74.0
 
Jan. 17, 2021, 1 a.m. 33.7 ppb (32) 8.8 ppb (9) N/A 25.0 ppb (24) N/A N/A N/A 0.89 ppb (11) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 17, 2021, midnight 23.9 ppb (23) 5.7 ppb (6) N/A 18.0 ppb (17) N/A N/A N/A 0.73 ppb (8) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2021, 11 p.m. 16.2 ppb (16) 3.8 ppb (4) N/A 13.0 ppb (13) N/A N/A N/A 0.54 ppb (6) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 16, 2021, 10 p.m. 17.1 ppb (17) 3.8 ppb (4) N/A 13.0 ppb (13) N/A N/A N/A 0.56 ppb (7) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2021, 9 p.m. 21.8 ppb (21) 6.4 ppb (7) N/A 15.0 ppb (15) N/A N/A N/A 0.61 ppb (7) N/A 16.0 μg/m3 (60) 60.0
 
Jan. 16, 2021, 8 p.m. 27.2 ppb (26) 10.1 ppb (10) N/A 17.0 ppb (17) N/A N/A N/A 0.69 ppb (8) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 16, 2021, 7 p.m. 35.4 ppb (34) 14.1 ppb (14) N/A 21.0 ppb (20) N/A N/A N/A 0.75 ppb (10) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 16, 2021, 6 p.m. 47.7 ppb (45) 24.4 ppb (24) N/A 23.0 ppb (22) N/A N/A N/A 0.84 ppb (10) N/A 24.0 μg/m3 (77) 77.0
 
Jan. 16, 2021, 5 p.m. 59.5 ppb (57) 34.2 ppb (33) N/A 25.0 ppb (24) N/A N/A N/A 0.99 ppb (12) N/A 26.0 μg/m3 (81) 81.0
 
Jan. 16, 2021, 4 p.m. 73.0 ppb (72) 53.0 ppb (50) N/A 20.0 ppb (19) N/A N/A N/A 1.22 ppb (14) N/A 16.0 μg/m3 (60) 72.0
 
Jan. 16, 2021, 3 p.m. 77.5 ppb (77) 60.3 ppb (58) N/A 17.0 ppb (17) N/A N/A N/A 1.26 ppb (15) N/A 13.0 μg/m3 (53) 77.0
 
Jan. 16, 2021, 2 p.m. 46.4 ppb (44) 31.6 ppb (30) N/A 15.0 ppb (15) N/A N/A N/A 0.82 ppb (10) N/A 7.0 μg/m3 (30) 44.0
 
Jan. 16, 2021, 1 p.m. 52.3 ppb (50) 35.9 ppb (34) N/A 16.0 ppb (16) N/A N/A N/A 0.93 ppb (11) N/A 16.0 μg/m3 (60) 60.0
 
Jan. 16, 2021, noon 30.2 ppb (29) 14.0 ppb (14) N/A 16.0 ppb (16) N/A N/A N/A 0.67 ppb (8) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 16, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (62) 62.0
 
Jan. 16, 2021, 10 a.m. 48.5 ppb (46) 29.8 ppb (29) N/A 19.0 ppb (18) N/A N/A N/A 1.06 ppb (13) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 16, 2021, 9 a.m. 70.7 ppb (69) 48.7 ppb (46) N/A 22.0 ppb (21) N/A N/A N/A 1.55 ppb (19) N/A 34.0 μg/m3 (98) 98.0
 
Jan. 16, 2021, 8 a.m. 65.5 ppb (64) 42.2 ppb (40) N/A 23.0 ppb (22) N/A N/A N/A 1.5 ppb (18) N/A 32.0 μg/m3 (93) 93.0
 
Jan. 16, 2021, 7 a.m. 39.7 ppb (38) 16.3 ppb (16) N/A 23.0 ppb (22) N/A N/A N/A 1.01 ppb (12) N/A 20.0 μg/m3 (68) 68.0
 
Jan. 16, 2021, 6 a.m. 46.5 ppb (44) 22.3 ppb (22) N/A 24.0 ppb (23) N/A N/A N/A 1.05 ppb (13) N/A 27.0 μg/m3 (83) 83.0
 
Jan. 16, 2021, 5 a.m. 51.9 ppb (49) 24.8 ppb (24) N/A 27.0 ppb (26) N/A N/A N/A 1.17 ppb (14) N/A 27.0 μg/m3 (83) 83.0
 
Jan. 16, 2021, 4 a.m. 51.6 ppb (49) 24.7 ppb (24) N/A 27.0 ppb (26) N/A N/A N/A 1.1 ppb (13) N/A 19.0 μg/m3 (66) 66.0
 
Jan. 16, 2021, 3 a.m. 59.0 ppb (57) 27.2 ppb (26) N/A 32.0 ppb (31) N/A N/A N/A 1.22 ppb (14) N/A 28.0 μg/m3 (85) 85.0
 
Jan. 16, 2021, 2 a.m. 54.8 ppb (52) 22.3 ppb (22) N/A 33.0 ppb (32) N/A N/A N/A 1.14 ppb (13) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 16, 2021, 1 a.m. 33.5 ppb (32) 6.0 ppb (6) N/A 28.0 ppb (27) N/A N/A N/A 0.78 ppb (10) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 16, 2021, midnight 18.8 ppb (18) 2.7 ppb (3) N/A 16.0 ppb (16) N/A N/A N/A 0.58 ppb (7) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 15, 2021, 11 p.m. 23.8 ppb (23) 6.0 ppb (6) N/A 18.0 ppb (17) N/A N/A N/A 0.57 ppb (7) N/A 8.0 μg/m3 (34) 34.0
 
Jan. 15, 2021, 10 p.m. 31.0 ppb (30) 11.0 ppb (11) N/A 20.0 ppb (19) N/A N/A N/A 0.65 ppb (8) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 15, 2021, 9 p.m. 25.8 ppb (25) 9.6 ppb (10) N/A 16.0 ppb (16) N/A N/A N/A 0.55 ppb (7) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 15, 2021, 8 p.m. 29.3 ppb (28) 13.0 ppb (13) N/A 16.0 ppb (16) N/A N/A N/A 0.58 ppb (7) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 15, 2021, 7 p.m. 36.6 ppb (35) 18.3 ppb (18) N/A 18.0 ppb (17) N/A N/A N/A 0.65 ppb (8) N/A 16.0 μg/m3 (60) 60.0
 
Jan. 15, 2021, 6 p.m. 54.0 ppb (51) 31.9 ppb (31) N/A 22.0 ppb (21) N/A N/A N/A 0.81 ppb (10) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 15, 2021, 5 p.m. 72.6 ppb (71) 47.6 ppb (45) N/A 25.0 ppb (24) N/A N/A N/A 0.94 ppb (11) N/A 13.0 μg/m3 (53) 71.0
 
Jan. 15, 2021, 4 p.m. 105.1 ppb (102) 80.9 ppb (80) N/A 24.0 ppb (23) N/A N/A N/A 1.34 ppb (15) N/A 19.0 μg/m3 (66) 102.0
 
Jan. 15, 2021, 3 p.m. 120.4 ppb (105) 100.2 ppb (101) N/A 20.0 ppb (19) N/A N/A N/A 1.81 ppb (21) N/A 16.0 μg/m3 (60) 105.0
 
Jan. 15, 2021, 2 p.m. 68.8 ppb (67) 51.4 ppb (49) N/A 17.0 ppb (17) N/A N/A N/A 1.13 ppb (13) N/A 14.0 μg/m3 (55) 67.0
 
Jan. 15, 2021, 1 p.m. 62.3 ppb (60) 44.9 ppb (43) N/A 17.0 ppb (17) N/A N/A N/A 0.93 ppb (11) N/A 11.0 μg/m3 (46) 60.0
 
Jan. 15, 2021, noon 53.2 ppb (51) 37.5 ppb (36) N/A 16.0 ppb (16) N/A N/A N/A 0.8 ppb (10) N/A 14.0 μg/m3 (55) 55.0
 
Jan. 15, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (55) 55.0
 
Jan. 15, 2021, 10 a.m. 63.0 ppb (61) 44.7 ppb (43) N/A 18.0 ppb (17) N/A N/A N/A 1.01 ppb (12) N/A 15.0 μg/m3 (58) 61.0
 
Jan. 15, 2021, 9 a.m. 53.1 ppb (51) 36.2 ppb (35) N/A 17.0 ppb (17) N/A N/A N/A 0.9 ppb (11) N/A 12.0 μg/m3 (50) 51.0
 
Jan. 15, 2021, 8 a.m. 55.2 ppb (53) 37.0 ppb (35) N/A 18.0 ppb (17) N/A N/A N/A 1.04 ppb (12) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 15, 2021, 7 a.m. 38.6 ppb (37) 19.3 ppb (19) N/A 19.0 ppb (18) N/A N/A N/A 0.78 ppb (10) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 15, 2021, 6 a.m. 38.0 ppb (36) 18.2 ppb (18) N/A 20.0 ppb (19) N/A N/A N/A 0.8 ppb (10) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 15, 2021, 5 a.m. 36.3 ppb (35) 15.5 ppb (15) N/A 21.0 ppb (20) N/A N/A N/A 0.8 ppb (10) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 15, 2021, 4 a.m. 36.8 ppb (35) 12.7 ppb (12) N/A 24.0 ppb (23) N/A N/A N/A 0.71 ppb (8) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 15, 2021, 3 a.m. 31.4 ppb (30) 9.3 ppb (9) N/A 22.0 ppb (21) N/A N/A N/A 0.64 ppb (7) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 15, 2021, 2 a.m. 30.1 ppb (29) 6.4 ppb (7) N/A 24.0 ppb (23) N/A N/A N/A 0.63 ppb (7) N/A 6.0 μg/m3 (25) 29.0
 
Jan. 15, 2021, 1 a.m. 40.6 ppb (39) 14.9 ppb (15) N/A 26.0 ppb (25) N/A N/A N/A 0.8 ppb (10) N/A 5.0 μg/m3 (21) 39.0
 
Jan. 15, 2021, midnight 28.9 ppb (28) 9.5 ppb (9) N/A 19.0 ppb (18) N/A N/A N/A 0.65 ppb (8) N/A 6.0 μg/m3 (25) 28.0
 
Jan. 14, 2021, 11 p.m. 21.5 ppb (21) 7.4 ppb (7) N/A 14.0 ppb (14) N/A N/A N/A 0.54 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 14, 2021, 10 p.m. 27.3 ppb (26) 10.6 ppb (10) N/A 17.0 ppb (17) N/A N/A N/A 0.59 ppb (7) N/A 8.0 μg/m3 (34) 34.0
 
Jan. 14, 2021, 9 p.m. 25.1 ppb (24) 10.4 ppb (10) N/A 15.0 ppb (15) N/A N/A N/A 0.52 ppb (6) N/A 8.0 μg/m3 (34) 34.0
 
Jan. 14, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Jan. 14, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (64) 64.0
 
Jan. 14, 2021, 6 p.m. 44.8 ppb (43) 21.9 ppb (21) N/A 23.0 ppb (22) N/A N/A N/A 0.7 ppb (8) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 14, 2021, 5 p.m. 61.6 ppb (60) 36.0 ppb (34) N/A 26.0 ppb (25) N/A N/A N/A 0.89 ppb (11) N/A 12.0 μg/m3 (50) 60.0
 
Jan. 14, 2021, 4 p.m. 64.9 ppb (63) 46.1 ppb (44) N/A 19.0 ppb (18) N/A N/A N/A 1.08 ppb (13) N/A 17.0 μg/m3 (62) 63.0
 
Jan. 14, 2021, 3 p.m. 86.8 ppb (86) 69.0 ppb (67) N/A 18.0 ppb (17) N/A N/A N/A 1.35 ppb (16) N/A 15.0 μg/m3 (58) 86.0
 
Jan. 14, 2021, 2 p.m. 59.3 ppb (57) 44.5 ppb (42) N/A 15.0 ppb (15) N/A N/A N/A 0.87 ppb (11) N/A 16.0 μg/m3 (60) 60.0
 
Jan. 14, 2021, 1 p.m. 32.3 ppb (31) 18.9 ppb (18) N/A 13.0 ppb (13) N/A N/A N/A 0.63 ppb (7) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 14, 2021, noon 31.6 ppb (30) 17.1 ppb (17) N/A 15.0 ppb (15) N/A N/A N/A 0.59 ppb (7) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 14, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (64) 64.0
 
Jan. 14, 2021, 10 a.m. 33.7 ppb (32) 17.3 ppb (17) N/A 16.0 ppb (16) N/A N/A N/A 0.6 ppb (7) N/A 20.0 μg/m3 (68) 68.0
 
Jan. 14, 2021, 9 a.m. 28.2 ppb (27) 11.2 ppb (11) N/A 17.0 ppb (17) N/A N/A N/A 0.59 ppb (7) N/A 19.0 μg/m3 (66) 66.0
 
Jan. 14, 2021, 8 a.m. 40.4 ppb (39) 21.2 ppb (20) N/A 19.0 ppb (18) N/A N/A N/A 0.75 ppb (10) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 14, 2021, 7 a.m. 34.2 ppb (33) 15.4 ppb (15) N/A 19.0 ppb (18) N/A N/A N/A 0.73 ppb (8) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 14, 2021, 6 a.m. 53.6 ppb (51) 31.1 ppb (30) N/A 23.0 ppb (22) N/A N/A N/A 1.06 ppb (13) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 14, 2021, 5 a.m. 47.6 ppb (45) 21.8 ppb (21) N/A 26.0 ppb (25) N/A N/A N/A 0.94 ppb (11) N/A 19.0 μg/m3 (66) 66.0
 
Jan. 14, 2021, 4 a.m. 52.5 ppb (50) 20.4 ppb (20) N/A 32.0 ppb (31) N/A N/A N/A 0.89 ppb (11) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 14, 2021, 3 a.m. 48.7 ppb (46) 18.5 ppb (18) N/A 30.0 ppb (29) N/A N/A N/A 0.91 ppb (11) N/A 14.0 μg/m3 (55) 55.0
 
Jan. 14, 2021, 2 a.m. 39.7 ppb (38) 13.2 ppb (13) N/A 27.0 ppb (26) N/A N/A N/A 0.83 ppb (10) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 14, 2021, 1 a.m. 30.1 ppb (29) 7.8 ppb (8) N/A 22.0 ppb (21) N/A N/A N/A 0.72 ppb (8) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 14, 2021, midnight 22.7 ppb (22) 4.1 ppb (4) N/A 19.0 ppb (18) N/A N/A N/A 0.57 ppb (7) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 13, 2021, 11 p.m. 23.3 ppb (22) 6.6 ppb (7) N/A 17.0 ppb (17) N/A N/A N/A 0.55 ppb (7) N/A 8.0 μg/m3 (34) 34.0
 
Jan. 13, 2021, 10 p.m. 22.7 ppb (22) 6.8 ppb (7) N/A 16.0 ppb (16) N/A N/A N/A 0.51 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 13, 2021, 9 p.m. 22.5 ppb (22) 7.5 ppb (8) N/A 15.0 ppb (15) N/A N/A N/A 0.5 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 13, 2021, 8 p.m. 28.5 ppb (27) 10.1 ppb (10) N/A 18.0 ppb (17) N/A N/A N/A 0.55 ppb (7) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 13, 2021, 7 p.m. 36.8 ppb (35) 14.9 ppb (15) N/A 22.0 ppb (21) N/A N/A N/A 0.63 ppb (7) N/A 20.0 μg/m3 (68) 68.0
 
Jan. 13, 2021, 6 p.m. 39.9 ppb (38) 18.6 ppb (18) N/A 21.0 ppb (20) N/A N/A N/A 0.68 ppb (8) N/A 26.0 μg/m3 (81) 81.0
 
Jan. 13, 2021, 5 p.m. 44.2 ppb (42) 22.8 ppb (22) N/A 21.0 ppb (20) N/A N/A N/A 0.7 ppb (8) N/A 19.0 μg/m3 (66) 66.0
 
Jan. 13, 2021, 4 p.m. 82.2 ppb (82) 59.0 ppb (57) N/A 23.0 ppb (22) N/A N/A N/A 1.2 ppb (14) N/A 20.0 μg/m3 (68) 82.0
 
Jan. 13, 2021, 3 p.m. 102.7 ppb (102) 78.7 ppb (78) N/A 24.0 ppb (23) N/A N/A N/A 1.3 ppb (15) N/A 20.0 μg/m3 (68) 102.0
 
Jan. 13, 2021, 2 p.m. 85.5 ppb (85) 62.1 ppb (60) N/A 23.0 ppb (22) N/A N/A N/A 1.2 ppb (14) N/A 23.0 μg/m3 (74) 85.0
 
Jan. 13, 2021, 1 p.m. 53.1 ppb (51) 31.8 ppb (30) N/A 21.0 ppb (20) N/A N/A N/A 0.85 ppb (10) N/A 24.0 μg/m3 (77) 77.0
 
Jan. 13, 2021, noon 51.6 ppb (49) 30.8 ppb (30) N/A 21.0 ppb (20) N/A N/A N/A 0.75 ppb (10) N/A 26.0 μg/m3 (81) 81.0
 
Jan. 13, 2021, 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
 
Jan. 13, 2021, 10 a.m. 37.7 ppb (36) 16.3 ppb (16) N/A 21.0 ppb (20) N/A N/A N/A 0.64 ppb (7) N/A 18.0 μg/m3 (64) 64.0
 
Jan. 13, 2021, 9 a.m. 40.8 ppb (39) 20.1 ppb (19) N/A 21.0 ppb (20) N/A N/A N/A 0.73 ppb (8) N/A 18.0 μg/m3 (64) 64.0
 
Jan. 13, 2021, 8 a.m. 49.2 ppb (47) 25.8 ppb (25) N/A 23.0 ppb (22) N/A N/A N/A 0.85 ppb (10) N/A 21.0 μg/m3 (70) 70.0
 
Jan. 13, 2021, 7 a.m. 36.5 ppb (35) 13.6 ppb (13) N/A 23.0 ppb (22) N/A N/A N/A 0.73 ppb (8) N/A 26.0 μg/m3 (81) 81.0
 
Jan. 13, 2021, 6 a.m. 41.7 ppb (40) 16.6 ppb (16) N/A 25.0 ppb (24) N/A N/A N/A 0.82 ppb (10) N/A 24.0 μg/m3 (77) 77.0
 
Jan. 13, 2021, 5 a.m. 41.7 ppb (40) 11.2 ppb (11) N/A 31.0 ppb (30) N/A N/A N/A 0.8 ppb (10) N/A 23.0 μg/m3 (74) 74.0
 
Jan. 13, 2021, 4 a.m. 38.3 ppb (37) 9.5 ppb (9) N/A 29.0 ppb (28) N/A N/A N/A 0.81 ppb (10) N/A 20.0 μg/m3 (68) 68.0
 
Jan. 13, 2021, 3 a.m. 37.0 ppb (35) 10.0 ppb (10) N/A 27.0 ppb (26) N/A N/A N/A 0.79 ppb (10) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 13, 2021, 2 a.m. 28.5 ppb (27) 4.0 ppb (4) N/A 25.0 ppb (24) N/A N/A N/A 0.66 ppb (8) N/A N/A 27.0
 
Jan. 13, 2021, 1 a.m. 47.3 ppb (45) 15.9 ppb (15) N/A 31.0 ppb (30) N/A N/A N/A 0.87 ppb (11) N/A 16.0 μg/m3 (60) 60.0
 
Jan. 13, 2021, midnight 47.2 ppb (45) 16.7 ppb (16) N/A 31.0 ppb (30) N/A N/A N/A 0.84 ppb (10) N/A 16.0 μg/m3 (60) 60.0
 
Jan. 12, 2021, 11 p.m. 33.7 ppb (32) 9.6 ppb (10) N/A 24.0 ppb (23) N/A N/A N/A 0.63 ppb (7) N/A 16.0 μg/m3 (60) 60.0
 
Jan. 12, 2021, 10 p.m. 41.4 ppb (40) 16.9 ppb (16) N/A 25.0 ppb (24) N/A N/A N/A 0.68 ppb (8) N/A 24.0 μg/m3 (77) 77.0
 
Jan. 12, 2021, 9 p.m. 38.4 ppb (37) 18.9 ppb (18) N/A 20.0 ppb (19) N/A N/A N/A 0.62 ppb (7) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 12, 2021, 8 p.m. 34.7 ppb (33) 17.5 ppb (17) N/A 17.0 ppb (17) N/A N/A N/A 0.59 ppb (7) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 12, 2021, 7 p.m. 39.8 ppb (38) 20.3 ppb (20) N/A 20.0 ppb (19) N/A N/A N/A 0.64 ppb (7) N/A 18.0 μg/m3 (64) 64.0
 
Jan. 12, 2021, 6 p.m. 50.1 ppb (48) 27.0 ppb (26) N/A 23.0 ppb (22) N/A N/A N/A 0.73 ppb (8) N/A 16.0 μg/m3 (60) 60.0
 
Jan. 12, 2021, 5 p.m. 51.2 ppb (49) 29.9 ppb (29) N/A 21.0 ppb (20) N/A N/A N/A 0.75 ppb (10) N/A 23.0 μg/m3 (74) 74.0
 
Jan. 12, 2021, 4 p.m. 53.7 ppb (51) 33.4 ppb (32) N/A 20.0 ppb (19) N/A N/A N/A 0.81 ppb (10) N/A 16.0 μg/m3 (60) 60.0
 
Jan. 12, 2021, 3 p.m. 69.5 ppb (68) 47.8 ppb (46) N/A 22.0 ppb (21) N/A N/A N/A 0.89 ppb (11) N/A 19.0 μg/m3 (66) 68.0
 
Jan. 12, 2021, 2 p.m. 61.4 ppb (59) 40.6 ppb (39) N/A 21.0 ppb (20) N/A N/A N/A 0.9 ppb (11) N/A 19.0 μg/m3 (66) 66.0
 
Jan. 12, 2021, 1 p.m. 43.7 ppb (42) 23.9 ppb (23) N/A 20.0 ppb (19) N/A N/A N/A 0.74 ppb (8) N/A 22.0 μg/m3 (72) 72.0
 
Jan. 12, 2021, noon 57.4 ppb (55) 34.6 ppb (33) N/A 23.0 ppb (22) N/A N/A N/A 0.85 ppb (10) N/A 26.0 μg/m3 (81) 81.0
 
Jan. 12, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (64) 64.0
 
Jan. 12, 2021, 10 a.m. 38.2 ppb (37) 15.9 ppb (15) N/A 22.0 ppb (21) N/A N/A N/A 0.72 ppb (8) N/A 23.0 μg/m3 (74) 74.0
 
Jan. 12, 2021, 9 a.m. 35.4 ppb (34) 12.8 ppb (13) N/A 23.0 ppb (22) N/A N/A N/A 0.68 ppb (8) N/A 19.0 μg/m3 (66) 66.0
 
Jan. 12, 2021, 8 a.m. 43.3 ppb (41) 18.4 ppb (18) N/A 25.0 ppb (24) N/A N/A N/A 0.79 ppb (10) N/A 23.0 μg/m3 (74) 74.0
 
Jan. 12, 2021, 7 a.m. 52.5 ppb (50) 27.8 ppb (27) N/A 25.0 ppb (24) N/A N/A N/A 1.02 ppb (12) N/A 27.0 μg/m3 (83) 83.0
 
Jan. 12, 2021, 6 a.m. 61.5 ppb (59) 32.8 ppb (31) N/A 29.0 ppb (28) N/A N/A N/A 1.14 ppb (13) N/A 32.0 μg/m3 (93) 93.0
 
Jan. 12, 2021, 5 a.m. 54.6 ppb (52) 26.1 ppb (25) N/A 29.0 ppb (28) N/A N/A N/A 1.01 ppb (12) N/A 24.0 μg/m3 (77) 77.0
 
Jan. 12, 2021, 4 a.m. 57.3 ppb (55) 26.6 ppb (26) N/A 31.0 ppb (30) N/A N/A N/A 1.06 ppb (13) N/A 22.0 μg/m3 (72) 72.0
 
Jan. 12, 2021, 3 a.m. 51.1 ppb (49) 19.3 ppb (19) N/A 32.0 ppb (31) N/A N/A N/A 0.94 ppb (11) N/A 25.0 μg/m3 (79) 79.0
 
Jan. 12, 2021, 2 a.m. 39.9 ppb (38) 9.4 ppb (9) N/A 31.0 ppb (30) N/A N/A N/A 0.79 ppb (10) N/A 16.0 μg/m3 (60) 60.0
 
Jan. 12, 2021, 1 a.m. 29.1 ppb (28) 5.5 ppb (6) N/A 24.0 ppb (23) N/A N/A N/A 0.64 ppb (7) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 12, 2021, midnight 33.9 ppb (32) 10.1 ppb (10) N/A 24.0 ppb (23) N/A N/A N/A 0.68 ppb (8) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 11, 2021, 11 p.m. 22.2 ppb (21) 6.1 ppb (6) N/A 16.0 ppb (16) N/A N/A N/A 0.54 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 11, 2021, 10 p.m. 35.3 ppb (34) 13.9 ppb (14) N/A 21.0 ppb (20) N/A N/A N/A 0.65 ppb (8) N/A 9.0 μg/m3 (38) 38.0