ID: 2411

AQSQID: 060850006

Site Name: San Jose - Knox Ave

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

Updated: June 28, 2022, 5:53 p.m.

Location: San Jose (E San Jose), CA

Reporting: True, Located: True

Current AQI: 46.0

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
June 28, 2022, 4 p.m. 19.4 ppb (19) 5.9 ppb (6) N/A 13.0 ppb (13) N/A N/A N/A 0.37 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
June 28, 2022, 3 p.m. 15.6 ppb (15) 3.5 ppb (4) N/A 12.0 ppb (12) N/A N/A N/A 0.35 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
June 28, 2022, 2 p.m. 17.8 ppb (17) 4.4 ppb (5) N/A 14.0 ppb (14) N/A N/A N/A 0.38 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
June 28, 2022, 1 p.m. 16.8 ppb (16) 3.0 ppb (3) N/A 14.0 ppb (14) N/A N/A N/A 0.37 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
June 28, 2022, noon 10.1 ppb (10) -0.3 ppb (0) N/A 10.0 ppb (10) N/A N/A N/A 0.32 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
June 28, 2022, noon 10.1 ppb (10) -0.3 ppb (0) N/A 10.0 ppb (10) N/A N/A N/A 0.32 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
June 28, 2022, 11 a.m. 3.2 ppb (4) -1.3 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.24 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
June 28, 2022, 11 a.m. 3.2 ppb (4) -1.3 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.24 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
June 28, 2022, 10 a.m. 3.2 ppb (4) -1.3 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.24 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
June 28, 2022, 10 a.m. 3.2 ppb (4) -1.3 ppb (0) N/A 4.0 ppb (4) N/A N/A N/A 0.24 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
June 28, 2022, 8 a.m. 9.3 ppb (9) 1.5 ppb (2) N/A 8.0 ppb (8) N/A N/A N/A 0.31 ppb (4) N/A 7.0 μg/m3 (30) 30.0
 
June 28, 2022, 8 a.m. 9.3 ppb (9) 1.5 ppb (2) N/A 8.0 ppb (8) N/A N/A N/A 0.31 ppb (4) N/A 7.0 μg/m3 (30) 30.0
 
June 28, 2022, 8 a.m. 9.3 ppb (9) 1.5 ppb (2) N/A 8.0 ppb (8) N/A N/A N/A 0.31 ppb (4) N/A 7.0 μg/m3 (30) 30.0
 
June 28, 2022, 7 a.m. 10.1 ppb (10) 1.5 ppb (2) N/A 9.0 ppb (9) N/A N/A N/A 0.33 ppb (4) N/A 7.0 μg/m3 (30) 30.0
 
June 28, 2022, 6 a.m. 10.6 ppb (10) 1.5 ppb (2) N/A 9.0 ppb (9) N/A N/A N/A 0.37 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
June 28, 2022, 5 a.m. 9.7 ppb (10) 0.5 ppb (1) N/A 9.0 ppb (9) N/A N/A N/A 0.38 ppb (5) N/A 8.0 μg/m3 (34) 34.0
 
June 28, 2022, 2 a.m. 11.7 ppb (12) 0.7 ppb (1) N/A 11.0 ppb (11) N/A N/A N/A 0.45 ppb (6) N/A 5.0 μg/m3 (21) 21.0
 
June 28, 2022, 1 a.m. 12.0 ppb (12) 1.5 ppb (2) N/A 11.0 ppb (11) N/A N/A N/A 0.47 ppb (6) N/A 3.0 μg/m3 (13) 13.0
 
June 28, 2022, midnight 12.7 ppb (12) 2.1 ppb (2) N/A 11.0 ppb (11) N/A N/A N/A 0.46 ppb (6) N/A 3.0 μg/m3 (13) 13.0
 
June 28, 2022, midnight 12.7 ppb (12) 2.1 ppb (2) N/A 11.0 ppb (11) N/A N/A N/A 0.46 ppb (6) N/A 3.0 μg/m3 (13) 13.0
 
June 27, 2022, 11 p.m. 12.8 ppb (13) 1.5 ppb (2) N/A 11.0 ppb (11) N/A N/A N/A 0.46 ppb (6) N/A 6.0 μg/m3 (25) 25.0
 
June 27, 2022, 11 p.m. 12.8 ppb (13) 1.5 ppb (2) N/A 11.0 ppb (11) N/A N/A N/A 0.46 ppb (6) N/A 6.0 μg/m3 (25) 25.0
 
June 27, 2022, 10 p.m. 11.4 ppb (11) 0.5 ppb (1) N/A 11.0 ppb (11) N/A N/A N/A 0.39 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
June 27, 2022, 10 p.m. 11.4 ppb (11) 0.5 ppb (1) N/A 11.0 ppb (11) N/A N/A N/A 0.39 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
June 27, 2022, 9 p.m. 9.2 ppb (9) -0.2 ppb (0) N/A 9.0 ppb (9) N/A N/A N/A 0.37 ppb (5) N/A 4.0 μg/m3 (17) 17.0
 
June 27, 2022, 9 p.m. 9.2 ppb (9) -0.2 ppb (0) N/A 9.0 ppb (9) N/A N/A N/A 0.37 ppb (5) N/A 4.0 μg/m3 (17) 17.0
 
June 27, 2022, 9 p.m. 9.2 ppb (9) -0.2 ppb (0) N/A 9.0 ppb (9) N/A N/A N/A 0.37 ppb (5) N/A 4.0 μg/m3 (17) 17.0
 
June 27, 2022, 8 p.m. 9.2 ppb (9) -0.2 ppb (0) N/A 9.0 ppb (9) N/A N/A N/A 0.35 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
June 27, 2022, 8 p.m. 9.2 ppb (9) -0.2 ppb (0) N/A 9.0 ppb (9) N/A N/A N/A 0.35 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
June 27, 2022, 6 p.m. 13.6 ppb (13) 2.2 ppb (3) N/A 11.0 ppb (11) N/A N/A N/A 0.36 ppb (5) N/A 16.0 μg/m3 (60) 60.0
 
June 27, 2022, 4 p.m. 15.3 ppb (15) 4.3 ppb (5) N/A 11.0 ppb (11) N/A N/A N/A 0.39 ppb (5) N/A 16.0 μg/m3 (60) 60.0
 
June 27, 2022, 4 p.m. 15.3 ppb (15) 4.3 ppb (5) N/A 11.0 ppb (11) N/A N/A N/A 0.39 ppb (5) N/A 16.0 μg/m3 (60) 60.0
 
June 27, 2022, 2 p.m. 8.2 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (8) N/A N/A N/A 0.34 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
June 27, 2022, 1 p.m. 9.1 ppb (9) -0.3 ppb (0) N/A 9.0 ppb (9) N/A N/A N/A 0.35 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
June 27, 2022, 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
 
June 27, 2022, 11 a.m. 3.4 ppb (4) -1.5 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.26 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
June 27, 2022, 11 a.m. 3.4 ppb (4) -1.5 ppb (0) N/A 5.0 ppb (5) N/A N/A N/A 0.26 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
June 27, 2022, 10 a.m. 4.9 ppb (5) -1.5 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A 0.27 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
June 27, 2022, 10 a.m. 4.9 ppb (5) -1.5 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A 0.27 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
June 27, 2022, 6 a.m. 7.4 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (7) N/A N/A N/A 0.4 ppb (5) N/A 3.0 μg/m3 (13) 13.0
 
June 27, 2022, 5 a.m. 14.1 ppb (14) 3.0 ppb (3) N/A 11.0 ppb (11) N/A N/A N/A 0.43 ppb (5) N/A 5.0 μg/m3 (21) 21.0
 
June 27, 2022, 4 a.m. 11.0 ppb (11) 1.4 ppb (2) N/A 10.0 ppb (10) N/A N/A N/A 0.45 ppb (6) N/A 8.0 μg/m3 (34) 34.0
 
June 27, 2022, 3 a.m. 10.5 ppb (10) 1.0 ppb (1) N/A 10.0 ppb (10) N/A N/A N/A 0.48 ppb (6) N/A 6.0 μg/m3 (25) 25.0
 
June 27, 2022, 2 a.m. 7.6 ppb (8) 0.2 ppb (1) N/A 8.0 ppb (8) N/A N/A N/A 0.46 ppb (6) N/A 7.0 μg/m3 (30) 30.0
 
June 27, 2022, 1 a.m. 7.0 ppb (7) -0.1 ppb (0) N/A 7.0 ppb (7) N/A N/A N/A 0.46 ppb (6) N/A 2.0 μg/m3 (9) 9.0
 
June 27, 2022, midnight 7.2 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (7) N/A N/A N/A 0.45 ppb (6) N/A 4.0 μg/m3 (17) 17.0
 
June 26, 2022, 10 p.m. 6.2 ppb (6) -0.6 ppb (0) N/A 7.0 ppb (7) N/A N/A N/A 0.4 ppb (5) N/A 7.0 μg/m3 (30) 30.0
 
June 26, 2022, 9 p.m. 5.7 ppb (6) -1.0 ppb (0) N/A 7.0 ppb (7) N/A N/A N/A 0.43 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
June 26, 2022, 8 p.m. 6.1 ppb (6) -0.7 ppb (0) N/A 7.0 ppb (7) N/A N/A N/A 0.41 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
June 26, 2022, 5 p.m. 8.8 ppb (9) 0.9 ppb (1) N/A 8.0 ppb (8) N/A N/A N/A 0.39 ppb (5) N/A 17.0 μg/m3 (62) 62.0
 
June 26, 2022, 4 p.m. 10.8 ppb (11) 2.7 ppb (3) N/A 8.0 ppb (8) N/A N/A N/A 0.4 ppb (5) N/A 14.0 μg/m3 (55) 55.0
 
June 26, 2022, 3 p.m. 10.5 ppb (10) 2.6 ppb (3) N/A 8.0 ppb (8) N/A N/A N/A 0.38 ppb (5) N/A 15.0 μg/m3 (58) 58.0
 
June 26, 2022, 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
 
June 26, 2022, 11 a.m. 6.9 ppb (7) -0.3 ppb (0) N/A 7.0 ppb (7) N/A N/A N/A 0.45 ppb (6) N/A 8.0 μg/m3 (34) 34.0
 
June 26, 2022, 11 a.m. 5.7 ppb (6) -0.9 ppb (0) N/A 7.0 ppb (7) N/A N/A N/A 0.33 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
June 26, 2022, 10 a.m. 5.7 ppb (6) -0.9 ppb (0) N/A 7.0 ppb (7) N/A N/A N/A 0.33 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
June 26, 2022, 10 a.m. 5.7 ppb (6) -0.9 ppb (0) N/A 7.0 ppb (7) N/A N/A N/A 0.33 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
June 26, 2022, 9 a.m. 6.9 ppb (7) -0.3 ppb (0) N/A 7.0 ppb (7) N/A N/A N/A 0.45 ppb (6) N/A 8.0 μg/m3 (34) 34.0
 
June 26, 2022, 8 a.m. 5.3 ppb (5) -0.6 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A 0.35 ppb (4) N/A 14.0 μg/m3 (55) 55.0
 
June 26, 2022, 7 a.m. 6.4 ppb (7) -0.7 ppb (0) N/A 7.0 ppb (7) N/A N/A N/A 0.39 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
June 26, 2022, 6 a.m. 6.6 ppb (7) -0.9 ppb (0) N/A 8.0 ppb (8) N/A N/A N/A 0.4 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
June 26, 2022, 5 a.m. 6.9 ppb (7) -0.9 ppb (0) N/A 8.0 ppb (8) N/A N/A N/A 0.39 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
June 26, 2022, 4 a.m. 10.3 ppb (10) 1.4 ppb (2) N/A 9.0 ppb (9) N/A N/A N/A 0.45 ppb (6) N/A 13.0 μg/m3 (53) 53.0
 
June 26, 2022, 4 a.m. 10.3 ppb (10) 1.4 ppb (2) N/A 9.0 ppb (9) N/A N/A N/A 0.45 ppb (6) N/A 13.0 μg/m3 (53) 53.0
 
June 26, 2022, 1 a.m. 10.4 ppb (10) 0.8 ppb (1) N/A 10.0 ppb (10) N/A N/A N/A 0.47 ppb (6) N/A 8.0 μg/m3 (34) 34.0
 
June 26, 2022, midnight 8.3 ppb (8) 0.1 ppb (1) N/A 8.0 ppb (8) N/A N/A N/A 0.46 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
June 26, 2022, midnight 8.3 ppb (8) 0.1 ppb (1) N/A 8.0 ppb (8) N/A N/A N/A 0.46 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
June 25, 2022, 11 p.m. 6.8 ppb (7) -0.6 ppb (0) N/A 7.0 ppb (7) N/A N/A N/A 0.43 ppb (5) N/A 14.0 μg/m3 (55) 55.0
 
June 25, 2022, 3 p.m. 22.0 ppb (21) 9.1 ppb (9) N/A 13.0 ppb (13) N/A N/A N/A 0.46 ppb (6) N/A 15.0 μg/m3 (58) 58.0
 
June 25, 2022, 2 p.m. 14.4 ppb (14) 4.0 ppb (4) N/A 10.0 ppb (10) N/A N/A N/A 0.39 ppb (5) N/A 15.0 μg/m3 (58) 58.0
 
June 25, 2022, 2 p.m. 14.4 ppb (14) 4.0 ppb (4) N/A 10.0 ppb (10) N/A N/A N/A 0.39 ppb (5) N/A 15.0 μg/m3 (58) 58.0
 
June 25, 2022, 2 p.m. 14.4 ppb (14) 4.0 ppb (4) N/A 10.0 ppb (10) N/A N/A N/A 0.39 ppb (5) N/A 15.0 μg/m3 (58) 58.0
 
June 25, 2022, 2 p.m. 14.4 ppb (14) 4.0 ppb (4) N/A 10.0 ppb (10) N/A N/A N/A 0.39 ppb (5) N/A 15.0 μg/m3 (58) 58.0
 
June 25, 2022, 1 p.m. 19.5 ppb (19) 7.2 ppb (7) N/A 12.0 ppb (12) N/A N/A N/A 0.44 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
June 25, 2022, 1 p.m. 19.5 ppb (19) 7.2 ppb (7) N/A 12.0 ppb (12) N/A N/A N/A 0.44 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
June 25, 2022, noon 15.5 ppb (15) 3.4 ppb (4) N/A 12.0 ppb (12) N/A N/A N/A 0.35 ppb (4) N/A 13.0 μg/m3 (53) 53.0
 
June 25, 2022, 10 a.m. 6.1 ppb (6) -1.3 ppb (0) N/A 7.0 ppb (7) N/A N/A N/A 0.3 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
June 25, 2022, 9 a.m. 4.5 ppb (5) -1.4 ppb (0) N/A 6.0 ppb (6) N/A N/A N/A 0.29 ppb (4) N/A 13.0 μg/m3 (53) 53.0
 
June 25, 2022, 1 a.m. 15.0 ppb (15) 2.7 ppb (3) N/A 12.0 ppb (12) N/A N/A N/A 0.49 ppb (6) N/A 14.0 μg/m3 (55) 55.0
 
June 25, 2022, 1 a.m. 15.0 ppb (15) 2.7 ppb (3) N/A 12.0 ppb (12) N/A N/A N/A 0.49 ppb (6) N/A 14.0 μg/m3 (55) 55.0
 
June 25, 2022, midnight 12.0 ppb (12) 0.7 ppb (1) N/A 11.0 ppb (11) N/A N/A N/A 0.51 ppb (6) N/A 12.0 μg/m3 (50) 50.0
 
June 24, 2022, 10 p.m. 14.0 ppb (14) 0.0 ppb (0) N/A 14.0 ppb (14) N/A N/A N/A 0.51 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
June 24, 2022, 9 p.m. 13.4 ppb (13) -0.5 ppb (0) N/A 14.0 ppb (14) N/A N/A N/A 0.51 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
June 24, 2022, 8 p.m. 14.4 ppb (14) -0.6 ppb (0) N/A 15.0 ppb (15) N/A N/A N/A 0.48 ppb (6) N/A 7.0 μg/m3 (30) 30.0
 
June 24, 2022, 7 p.m. 16.7 ppb (16) 0.2 ppb (1) N/A 17.0 ppb (17) N/A N/A N/A 0.47 ppb (6) N/A 7.0 μg/m3 (30) 30.0
 
June 24, 2022, 7 p.m. 16.7 ppb (16) 0.2 ppb (1) N/A 17.0 ppb (17) N/A N/A N/A 0.47 ppb (6) N/A 7.0 μg/m3 (30) 30.0
 
June 24, 2022, 3 p.m. 22.4 ppb (22) 7.7 ppb (8) N/A 15.0 ppb (15) N/A N/A N/A 0.37 ppb (5) N/A 5.0 μg/m3 (21) 22.0
 
June 24, 2022, 2 p.m. 31.1 ppb (30) 13.2 ppb (13) N/A 18.0 ppb (17) N/A N/A N/A 0.45 ppb (6) N/A 6.0 μg/m3 (25) 30.0
 
June 24, 2022, 1 p.m. 38.8 ppb (37) 17.4 ppb (17) N/A 21.0 ppb (20) N/A N/A N/A 0.53 ppb (6) N/A 7.0 μg/m3 (30) 37.0
 
June 24, 2022, noon 14.1 ppb (14) 0.2 ppb (1) N/A 14.0 ppb (14) N/A N/A N/A 0.37 ppb (5) N/A 7.0 μg/m3 (30) 30.0
 
June 24, 2022, 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
 
June 24, 2022, 11 a.m. 6.1 ppb (6) -1.7 ppb (0) N/A 8.0 ppb (8) N/A N/A N/A 0.29 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
June 24, 2022, 10 a.m. 6.1 ppb (6) -1.7 ppb (0) N/A 8.0 ppb (8) N/A N/A N/A 0.29 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
June 24, 2022, 8 a.m. 5.4 ppb (6) -1.8 ppb (0) N/A 7.0 ppb (7) N/A N/A N/A 0.31 ppb (4) N/A 4.0 μg/m3 (17) 17.0
 
June 24, 2022, 7 a.m. 7.6 ppb (8) -1.8 ppb (0) N/A 9.0 ppb (9) N/A N/A N/A 0.39 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
June 24, 2022, 6 a.m. 12.4 ppb (12) 0.7 ppb (1) N/A 12.0 ppb (12) N/A N/A N/A 0.38 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
June 24, 2022, 6 a.m. 12.4 ppb (12) 0.7 ppb (1) N/A 12.0 ppb (12) N/A N/A N/A 0.38 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
June 24, 2022, 4 a.m. 15.7 ppb (15) 1.6 ppb (2) N/A 14.0 ppb (14) N/A N/A N/A 0.45 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
June 24, 2022, 2 a.m. 15.3 ppb (15) 1.2 ppb (2) N/A 14.0 ppb (14) N/A N/A N/A 0.48 ppb (6) N/A 5.0 μg/m3 (21) 21.0
 
June 24, 2022, 1 a.m. 13.3 ppb (13) 0.4 ppb (1) N/A 13.0 ppb (13) N/A N/A N/A 0.47 ppb (6) N/A 3.0 μg/m3 (13) 13.0
 
June 24, 2022, midnight 13.2 ppb (13) 0.2 ppb (1) N/A 13.0 ppb (13) N/A N/A N/A 0.51 ppb (6) N/A 5.0 μg/m3 (21) 21.0
 
June 23, 2022, 11 p.m. 12.8 ppb (13) 0.0 ppb (0) N/A 13.0 ppb (13) N/A N/A N/A 0.45 ppb (6) N/A 5.0 μg/m3 (21) 21.0
 
June 23, 2022, 10 p.m. 12.0 ppb (12) -0.6 ppb (0) N/A 13.0 ppb (13) N/A N/A N/A 0.48 ppb (6) N/A 7.0 μg/m3 (30) 30.0
 
June 23, 2022, 9 p.m. 13.2 ppb (13) -0.5 ppb (0) N/A 14.0 ppb (14) N/A N/A N/A 0.49 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
June 23, 2022, 8 p.m. 11.1 ppb (11) -0.8 ppb (0) N/A 12.0 ppb (12) N/A N/A N/A 0.46 ppb (6) N/A 12.0 μg/m3 (50) 50.0
 
June 23, 2022, 8 p.m. 11.1 ppb (11) -0.8 ppb (0) N/A 12.0 ppb (12) N/A N/A N/A 0.46 ppb (6) N/A 12.0 μg/m3 (50) 50.0
 
June 23, 2022, 7 p.m. 15.5 ppb (15) 0.3 ppb (1) N/A 15.0 ppb (15) N/A N/A N/A 0.46 ppb (6) N/A 15.0 μg/m3 (58) 58.0
 
June 23, 2022, 7 p.m. 15.5 ppb (15) 0.3 ppb (1) N/A 15.0 ppb (15) N/A N/A N/A 0.46 ppb (6) N/A 15.0 μg/m3 (58) 58.0
 
June 23, 2022, 6 p.m. 18.9 ppb (18) 2.2 ppb (3) N/A 17.0 ppb (17) N/A N/A N/A 0.46 ppb (6) N/A 14.0 μg/m3 (55) 55.0
 
June 23, 2022, 6 p.m. 18.9 ppb (18) 2.2 ppb (3) N/A 17.0 ppb (17) N/A N/A N/A 0.46 ppb (6) N/A 14.0 μg/m3 (55) 55.0
 
June 23, 2022, 3 p.m. 21.2 ppb (20) 7.0 ppb (7) N/A 14.0 ppb (14) N/A N/A N/A 0.43 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
June 23, 2022, 9 a.m. 9.9 ppb (10) -1.0 ppb (0) N/A 11.0 ppb (11) N/A N/A N/A 0.34 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
June 23, 2022, 8 a.m. 15.6 ppb (15) 0.5 ppb (1) N/A 15.0 ppb (15) N/A N/A N/A 0.35 ppb (4) N/A 7.0 μg/m3 (30) 30.0
 
June 23, 2022, 8 a.m. 15.6 ppb (15) 0.5 ppb (1) N/A 15.0 ppb (15) N/A N/A N/A 0.35 ppb (4) N/A 7.0 μg/m3 (30) 30.0
 
June 23, 2022, 7 a.m. 19.5 ppb (19) 0.1 ppb (1) N/A 19.0 ppb (18) N/A N/A N/A 0.39 ppb (5) N/A 4.0 μg/m3 (17) 19.0
 
June 23, 2022, 6 a.m. 11.7 ppb (12) -0.7 ppb (0) N/A 12.0 ppb (12) N/A N/A N/A 0.33 ppb (4) N/A 2.0 μg/m3 (9) 12.0
 
June 23, 2022, 5 a.m. 12.6 ppb (12) 0.4 ppb (1) N/A 12.0 ppb (12) N/A N/A N/A 0.38 ppb (5) N/A 5.0 μg/m3 (21) 21.0
 
June 23, 2022, 3 a.m. 17.6 ppb (17) 0.8 ppb (1) N/A 17.0 ppb (17) N/A N/A N/A 0.47 ppb (6) N/A 22.0 μg/m3 (72) 72.0
 
June 23, 2022, 3 a.m. 17.6 ppb (17) 0.8 ppb (1) N/A 17.0 ppb (17) N/A N/A N/A 0.47 ppb (6) N/A 22.0 μg/m3 (72) 72.0
 
June 23, 2022, 3 a.m. 17.6 ppb (17) 0.8 ppb (1) N/A 17.0 ppb (17) N/A N/A N/A 0.47 ppb (6) N/A 22.0 μg/m3 (72) 72.0
 
June 22, 2022, 10 p.m. 21.4 ppb (21) 0.3 ppb (1) N/A 21.0 ppb (20) N/A N/A N/A 0.57 ppb (7) N/A 17.0 μg/m3 (62) 62.0
 
June 22, 2022, 10 p.m. 21.4 ppb (21) 0.3 ppb (1) N/A 21.0 ppb (20) N/A N/A N/A 0.57 ppb (7) N/A 17.0 μg/m3 (62) 62.0
 
June 22, 2022, 9 p.m. 17.5 ppb (17) -1.0 ppb (0) N/A 18.0 ppb (17) N/A N/A N/A 0.56 ppb (7) N/A 16.0 μg/m3 (60) 60.0
 
June 22, 2022, 9 p.m. 17.5 ppb (17) -1.0 ppb (0) N/A 18.0 ppb (17) N/A N/A N/A 0.56 ppb (7) N/A 16.0 μg/m3 (60) 60.0
 
June 22, 2022, 8 p.m. 14.0 ppb (14) -0.5 ppb (0) N/A 15.0 ppb (15) N/A N/A N/A 0.46 ppb (6) N/A 8.0 μg/m3 (34) 34.0
 
June 22, 2022, 8 p.m. 14.0 ppb (14) -0.5 ppb (0) N/A 15.0 ppb (15) N/A N/A N/A 0.46 ppb (6) N/A 8.0 μg/m3 (34) 34.0
 
June 22, 2022, 6 p.m. 15.8 ppb (15) 1.3 ppb (2) N/A 15.0 ppb (15) N/A N/A N/A 0.34 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
June 22, 2022, 5 p.m. 16.7 ppb (16) 2.6 ppb (3) N/A 14.0 ppb (14) N/A N/A N/A 0.31 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
June 22, 2022, 5 p.m. 16.7 ppb (16) 2.6 ppb (3) N/A 14.0 ppb (14) N/A N/A N/A 0.31 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
June 22, 2022, 3 p.m. 16.6 ppb (16) 3.3 ppb (4) N/A 13.0 ppb (13) N/A N/A N/A 0.34 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
June 22, 2022, 2 p.m. 29.2 ppb (28) 12.8 ppb (13) N/A 17.0 ppb (17) N/A N/A N/A 0.38 ppb (5) N/A 14.0 μg/m3 (55) 55.0
 
June 22, 2022, 2 p.m. 29.2 ppb (28) 12.8 ppb (13) N/A 17.0 ppb (17) N/A N/A N/A 0.38 ppb (5) N/A 14.0 μg/m3 (55) 55.0
 
June 22, 2022, 11 a.m. 16.7 ppb (16) 1.3 ppb (2) N/A 15.0 ppb (15) N/A N/A N/A 0.35 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
June 22, 2022, 7 a.m. 17.8 ppb (17) -0.7 ppb (0) N/A 19.0 ppb (18) N/A N/A N/A 0.49 ppb (6) N/A 7.0 μg/m3 (30) 30.0
 
June 22, 2022, 3 a.m. 7.2 ppb (7) -1.8 ppb (0) N/A 9.0 ppb (9) N/A N/A N/A 0.35 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
June 22, 2022, 3 a.m. 7.2 ppb (7) -1.8 ppb (0) N/A 9.0 ppb (9) N/A N/A N/A 0.35 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
June 22, 2022, 2 a.m. 14.0 ppb (14) -0.5 ppb (0) N/A 15.0 ppb (15) N/A N/A N/A 0.46 ppb (6) N/A 5.0 μg/m3 (21) 21.0
 
June 22, 2022, midnight 11.6 ppb (11) -0.9 ppb (0) N/A 12.0 ppb (12) N/A N/A N/A 0.43 ppb (5) N/A 4.0 μg/m3 (17) 17.0
 
June 21, 2022, 7 p.m. 17.8 ppb (17) 1.1 ppb (2) N/A 17.0 ppb (17) N/A N/A N/A 0.42 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
June 21, 2022, 5 p.m. 40.3 ppb (39) 10.8 ppb (11) N/A 29.0 ppb (28) N/A N/A N/A 0.55 ppb (7) N/A 15.0 μg/m3 (58) 58.0
 
June 21, 2022, 5 p.m. 40.3 ppb (39) 10.8 ppb (11) N/A 29.0 ppb (28) N/A N/A N/A 0.55 ppb (7) N/A 15.0 μg/m3 (58) 58.0
 
June 21, 2022, 5 p.m. 40.3 ppb (39) 10.8 ppb (11) N/A 29.0 ppb (28) N/A N/A N/A 0.55 ppb (7) N/A 15.0 μg/m3 (58) 58.0
 
June 21, 2022, 4 p.m. 31.0 ppb (30) 8.6 ppb (9) N/A 22.0 ppb (21) N/A N/A N/A 0.5 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
June 21, 2022, 4 p.m. 31.0 ppb (30) 8.6 ppb (9) N/A 22.0 ppb (21) N/A N/A N/A 0.5 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
June 21, 2022, 3 p.m. 36.2 ppb (35) 12.8 ppb (13) 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
 
June 21, 2022, 3 p.m. 36.2 ppb (35) 12.8 ppb (13) 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
 
June 21, 2022, 2 p.m. 47.9 ppb (46) 23.2 ppb (22) N/A 25.0 ppb (24) N/A N/A N/A 0.67 ppb (8) N/A 8.0 μg/m3 (34) 46.0
 
June 21, 2022, 2 p.m. 47.9 ppb (46) 23.2 ppb (22) N/A 25.0 ppb (24) N/A N/A N/A 0.67 ppb (8) N/A 8.0 μg/m3 (34) 46.0
 
June 21, 2022, 2 p.m. 47.9 ppb (46) 23.2 ppb (22) N/A 25.0 ppb (24) N/A N/A N/A 0.67 ppb (8) N/A 8.0 μg/m3 (34) 46.0
 
June 21, 2022, 1 p.m. 63.6 ppb (62) 38.7 ppb (37) N/A 25.0 ppb (24) N/A N/A N/A 0.8 ppb (10) N/A 10.0 μg/m3 (42) 62.0
 
June 21, 2022, 1 p.m. 63.6 ppb (62) 38.7 ppb (37) N/A 25.0 ppb (24) N/A N/A N/A 0.8 ppb (10) N/A 10.0 μg/m3 (42) 62.0
 
June 21, 2022, noon 39.7 ppb (38) 16.8 ppb (16) N/A 23.0 ppb (22) N/A N/A N/A 0.57 ppb (7) N/A 16.0 μg/m3 (60) 60.0
 
June 21, 2022, 11 a.m. 16.8 ppb (16) 1.3 ppb (2) N/A 16.0 ppb (16) N/A N/A N/A 0.34 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
June 21, 2022, 10 a.m. 20.5 ppb (20) 3.0 ppb (3) N/A 18.0 ppb (17) N/A N/A N/A 0.35 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
June 21, 2022, 6 a.m. 8.7 ppb (9) -2.0 ppb (0) N/A 11.0 ppb (11) N/A N/A N/A 0.34 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
June 21, 2022, 5 a.m. 5.6 ppb (6) -2.0 ppb (0) N/A 8.0 ppb (8) N/A N/A N/A 0.29 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
June 21, 2022, 2 a.m. 8.0 ppb (8) 0.4 ppb (1) N/A 8.0 ppb (8) N/A N/A N/A 0.37 ppb (5) N/A 5.0 μg/m3 (21) 21.0
 
June 21, 2022, 1 a.m. 9.0 ppb (9) 0.7 ppb (1) N/A 8.0 ppb (8) N/A N/A N/A 0.41 ppb (5) N/A 7.0 μg/m3 (30) 30.0
 
June 20, 2022, 10 p.m. 13.8 ppb (14) 0.9 ppb (1) N/A 13.0 ppb (13) N/A N/A N/A 0.45 ppb (6) N/A 5.0 μg/m3 (21) 21.0
 
June 20, 2022, 9 p.m. 14.7 ppb (14) 1.3 ppb (2) N/A 13.0 ppb (13) N/A N/A N/A 0.43 ppb (5) N/A 4.0 μg/m3 (17) 17.0
 
June 20, 2022, 8 p.m. 10.1 ppb (10) 0.3 ppb (1) N/A 10.0 ppb (10) N/A N/A N/A 0.36 ppb (5) N/A 5.0 μg/m3 (21) 21.0
 
June 20, 2022, 7 p.m. 13.3 ppb (13) 1.3 ppb (2) N/A 12.0 ppb (12) N/A N/A N/A 0.38 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
June 20, 2022, 7 p.m. 13.3 ppb (13) 1.3 ppb (2) N/A 12.0 ppb (12) N/A N/A N/A 0.38 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
June 20, 2022, 6 p.m. 24.3 ppb (23) 6.4 ppb (7) N/A 18.0 ppb (17) N/A N/A N/A 0.44 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
June 20, 2022, 4 p.m. 22.7 ppb (22) 7.3 ppb (7) N/A 15.0 ppb (15) N/A N/A N/A 0.44 ppb (5) N/A 15.0 μg/m3 (58) 58.0
 
June 20, 2022, 2 p.m. 37.0 ppb (35) 19.3 ppb (19) N/A 18.0 ppb (17) N/A N/A N/A 0.58 ppb (7) N/A 9.0 μg/m3 (38) 38.0
 
June 20, 2022, 2 p.m. 37.0 ppb (35) 19.3 ppb (19) N/A 18.0 ppb (17) N/A N/A N/A 0.58 ppb (7) N/A 9.0 μg/m3 (38) 38.0
 
June 20, 2022, 1 p.m. 38.9 ppb (37) 21.5 ppb (21) N/A 17.0 ppb (17) N/A N/A N/A 0.6 ppb (7) N/A 8.0 μg/m3 (34) 37.0