AQSQID: 060850005

Site Name: San Jose - Jackson St.

Location: San Jose (Downtown), CA

Reporting: True, Located: True

Current AQI: 46.0

San Jose (Downtown) CA, US: 37.3483, -121.8947

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 20, 2020, noon 33.5 ppb (31) 19.8 ppb (18) N/A 14.0 ppb (13) N/A N/A 0.0 ppb (0) 0.59 ppb (7) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 20, 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 (67) 67.0
 
Jan. 20, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (76) 76.0
 
Jan. 20, 2020, 9 a.m. 53.6 ppb (50) 32.9 ppb (30) N/A 21.0 ppb (19) N/A N/A 0.0 ppb (0) 0.89 ppb (10) N/A 24.0 μg/m3 (76) 76.0
 
Jan. 20, 2020, 8 a.m. 56.8 ppb (53) 34.9 ppb (32) N/A 22.0 ppb (20) N/A N/A 0.0 ppb (0) 0.87 ppb (10) N/A 28.0 μg/m3 (84) 84.0
 
Jan. 20, 2020, 7 a.m. 64.3 ppb (61) 42.2 ppb (39) N/A 22.0 ppb (20) N/A N/A 0.0 ppb (0) 1.08 ppb (12) N/A 28.0 μg/m3 (84) 84.0
 
Jan. 20, 2020, 6 a.m. 56.3 ppb (52) 34.3 ppb (32) N/A 22.0 ppb (20) N/A N/A 0.0 ppb (0) 0.92 ppb (10) N/A 20.0 μg/m3 (67) 67.0
 
Jan. 20, 2020, 5 a.m. 60.3 ppb (57) 37.4 ppb (35) N/A 23.0 ppb (21) N/A N/A 0.0 ppb (0) 0.96 ppb (11) N/A 20.0 μg/m3 (67) 67.0
 
Jan. 20, 2020, 4 a.m. 39.7 ppb (37) 17.7 ppb (16) N/A 22.0 ppb (20) N/A N/A 0.0 ppb (0) 0.7 ppb (8) N/A 23.0 μg/m3 (73) 73.0
 
Jan. 20, 2020, 3 a.m. 30.8 ppb (29) 10.0 ppb (9) N/A 21.0 ppb (19) N/A N/A 0.0 ppb (0) 0.57 ppb (6) N/A 15.0 μg/m3 (56) 56.0
 
Jan. 20, 2020, 2 a.m. 25.2 ppb (23) 2.9 ppb (3) N/A 22.0 ppb (20) N/A N/A 3.0 ppb (2) 0.46 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 20, 2020, 1 a.m. 18.9 ppb (18) 1.4 ppb (1) N/A 18.0 ppb (17) N/A N/A 10.0 ppb (8) 0.41 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 20, 2020, midnight 21.4 ppb (20) 2.7 ppb (3) N/A 19.0 ppb (18) N/A N/A 11.0 ppb (8) 0.45 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 19, 2020, 11 p.m. 40.9 ppb (38) 10.5 ppb (10) N/A 30.0 ppb (28) N/A N/A 8.0 ppb (6) 0.57 ppb (6) N/A 21.0 μg/m3 (69) 69.0
 
Jan. 19, 2020, 10 p.m. 32.9 ppb (30) 7.4 ppb (7) N/A 26.0 ppb (24) N/A N/A 12.0 ppb (9) 0.5 ppb (6) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 19, 2020, 9 p.m. 26.4 ppb (24) 7.0 ppb (6) N/A 20.0 ppb (19) N/A N/A 16.0 ppb (12) 0.46 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 19, 2020, 8 p.m. 27.6 ppb (26) 10.6 ppb (10) N/A 17.0 ppb (16) N/A N/A 14.0 ppb (11) 0.41 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 19, 2020, 7 p.m. 32.8 ppb (30) 14.4 ppb (13) N/A 18.0 ppb (17) N/A N/A 10.0 ppb (8) 0.47 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 19, 2020, 6 p.m. 50.5 ppb (47) 29.7 ppb (28) N/A 21.0 ppb (19) N/A N/A 4.0 ppb (3) 0.7 ppb (8) N/A 11.0 μg/m3 (46) 47.0
 
Jan. 19, 2020, 5 p.m. 58.1 ppb (54) 38.6 ppb (36) N/A 19.0 ppb (18) N/A N/A 1.0 ppb (1) 0.79 ppb (9) N/A 11.0 μg/m3 (46) 54.0
 
Jan. 19, 2020, 4 p.m. 63.7 ppb (60) 45.1 ppb (42) N/A 19.0 ppb (18) N/A N/A 0.0 ppb (0) 0.93 ppb (10) N/A 9.0 μg/m3 (38) 60.0
 
Jan. 19, 2020, 3 p.m. 54.8 ppb (51) 38.3 ppb (35) N/A 17.0 ppb (16) N/A N/A 0.0 ppb (0) 0.75 ppb (8) N/A 8.0 μg/m3 (33) 51.0
 
Jan. 19, 2020, 2 p.m. 39.9 ppb (37) 23.5 ppb (22) N/A 16.0 ppb (15) N/A N/A 0.0 ppb (0) 0.63 ppb (7) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 19, 2020, 1 p.m. 54.0 ppb (50) 38.3 ppb (35) N/A 16.0 ppb (15) N/A N/A 0.0 ppb (0) 0.75 ppb (8) N/A 10.0 μg/m3 (42) 50.0
 
Jan. 19, 2020, noon 43.7 ppb (40) 29.7 ppb (28) N/A 14.0 ppb (13) N/A N/A 0.0 ppb (0) 0.71 ppb (8) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 19, 2020, 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 (54) 54.0
 
Jan. 19, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (61) 61.0
 
Jan. 19, 2020, 9 a.m. 53.1 ppb (49) 31.5 ppb (29) N/A 22.0 ppb (20) N/A N/A 0.0 ppb (0) 0.92 ppb (10) N/A 17.0 μg/m3 (61) 61.0
 
Jan. 19, 2020, 8 a.m. 48.5 ppb (45) 25.0 ppb (23) N/A 24.0 ppb (22) N/A N/A 0.0 ppb (0) 0.89 ppb (10) N/A 20.0 μg/m3 (67) 67.0
 
Jan. 19, 2020, 7 a.m. 43.7 ppb (40) 18.9 ppb (18) N/A 25.0 ppb (23) N/A N/A 0.0 ppb (0) 0.83 ppb (9) N/A 17.0 μg/m3 (61) 61.0
 
Jan. 19, 2020, 6 a.m. 56.1 ppb (52) 29.7 ppb (28) N/A 26.0 ppb (24) N/A N/A 0.0 ppb (0) 0.92 ppb (10) N/A 23.0 μg/m3 (73) 73.0
 
Jan. 19, 2020, 5 a.m. 45.4 ppb (42) 16.3 ppb (15) N/A 29.0 ppb (27) N/A N/A 0.0 ppb (0) 0.66 ppb (7) N/A 20.0 μg/m3 (67) 67.0
 
Jan. 19, 2020, 4 a.m. 39.7 ppb (37) 11.6 ppb (11) N/A 28.0 ppb (26) N/A N/A 2.0 ppb (2) 0.63 ppb (7) N/A 15.0 μg/m3 (56) 56.0
 
Jan. 19, 2020, 3 a.m. 27.5 ppb (25) 3.6 ppb (3) N/A 24.0 ppb (22) N/A N/A 7.0 ppb (5) 0.39 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 19, 2020, 2 a.m. 19.9 ppb (18) 2.8 ppb (3) N/A 17.0 ppb (16) N/A N/A 18.0 ppb (14) 0.37 ppb (4) N/A 25.0 μg/m3 (78) 78.0
 
Jan. 19, 2020, 1 a.m. 13.9 ppb (13) 1.7 ppb (2) N/A 12.0 ppb (11) N/A N/A 22.0 ppb (17) 0.3 ppb (3) N/A 13.0 μg/m3 (52) 52.0
 
Jan. 19, 2020, midnight 10.0 ppb (9) 1.6 ppb (1) N/A 9.0 ppb (8) N/A N/A 27.0 ppb (21) 0.26 ppb (3) N/A 34.0 μg/m3 (97) 97.0
 
Jan. 18, 2020, 11 p.m. 11.5 ppb (11) 2.2 ppb (2) N/A 9.0 ppb (8) N/A N/A 27.0 ppb (21) 0.24 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 18, 2020, 10 p.m. 15.7 ppb (15) 4.1 ppb (4) N/A 12.0 ppb (11) N/A N/A 25.0 ppb (19) 0.28 ppb (3) N/A 20.0 μg/m3 (67) 67.0
 
Jan. 18, 2020, 9 p.m. 25.5 ppb (24) 9.4 ppb (9) N/A 16.0 ppb (15) N/A N/A 18.0 ppb (14) 0.41 ppb (5) N/A 20.0 μg/m3 (67) 67.0
 
Jan. 18, 2020, 8 p.m. 26.8 ppb (25) 10.9 ppb (10) N/A 16.0 ppb (15) N/A N/A 13.0 ppb (10) 0.47 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 18, 2020, 7 p.m. 37.4 ppb (35) 19.0 ppb (18) N/A 19.0 ppb (18) N/A N/A 10.0 ppb (8) 0.55 ppb (6) N/A 13.0 μg/m3 (52) 52.0
 
Jan. 18, 2020, 6 p.m. 38.4 ppb (36) 20.3 ppb (19) N/A 18.0 ppb (17) N/A N/A 7.0 ppb (5) 0.59 ppb (7) N/A 13.0 μg/m3 (52) 52.0
 
Jan. 18, 2020, 5 p.m. 65.3 ppb (62) 45.5 ppb (42) N/A 20.0 ppb (19) N/A N/A 2.0 ppb (2) 0.89 ppb (10) N/A 13.0 μg/m3 (52) 62.0
 
Jan. 18, 2020, 4 p.m. 77.5 ppb (75) 59.0 ppb (55) N/A 19.0 ppb (18) N/A N/A 0.0 ppb (0) 0.99 ppb (11) N/A 11.0 μg/m3 (46) 75.0
 
Jan. 18, 2020, 3 p.m. 62.3 ppb (59) 45.9 ppb (42) N/A 16.0 ppb (15) N/A N/A 0.0 ppb (0) 0.79 ppb (9) N/A 7.0 μg/m3 (29) 59.0
 
Jan. 18, 2020, 2 p.m. 46.2 ppb (43) 29.8 ppb (28) N/A 16.0 ppb (15) N/A N/A 0.0 ppb (0) 0.69 ppb (8) N/A 5.0 μg/m3 (21) 43.0
 
Jan. 18, 2020, 1 p.m. 34.8 ppb (32) 18.8 ppb (17) N/A 16.0 ppb (15) N/A N/A 0.0 ppb (0) 0.66 ppb (7) N/A 7.0 μg/m3 (29) 32.0
 
Jan. 18, 2020, noon 35.4 ppb (33) 22.2 ppb (21) N/A 13.0 ppb (12) N/A N/A 0.0 ppb (0) 0.63 ppb (7) N/A 7.0 μg/m3 (29) 33.0
 
Jan. 18, 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
 
Jan. 18, 2020, 10 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
 
Jan. 18, 2020, 9 a.m. 53.1 ppb (49) 32.7 ppb (30) N/A 20.0 ppb (19) N/A N/A 0.0 ppb (0) 0.84 ppb (9) N/A N/A 49.0
 
Jan. 18, 2020, 8 a.m. 56.0 ppb (52) 32.3 ppb (30) N/A 24.0 ppb (22) N/A N/A 0.0 ppb (0) 0.74 ppb (8) N/A 11.0 μg/m3 (46) 52.0
 
Jan. 18, 2020, 7 a.m. 43.3 ppb (40) 17.6 ppb (16) N/A 26.0 ppb (24) N/A N/A 0.0 ppb (0) 0.64 ppb (7) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 18, 2020, 6 a.m. 44.7 ppb (41) 17.9 ppb (17) N/A 27.0 ppb (25) N/A N/A 0.0 ppb (0) 0.82 ppb (9) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 18, 2020, 5 a.m. 39.2 ppb (36) 10.6 ppb (10) N/A 29.0 ppb (27) N/A N/A 1.0 ppb (1) 0.6 ppb (7) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 18, 2020, 4 a.m. 32.9 ppb (30) 5.7 ppb (5) N/A 27.0 ppb (25) N/A N/A 4.0 ppb (3) 0.48 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 18, 2020, 3 a.m. 28.6 ppb (26) 3.6 ppb (3) N/A 25.0 ppb (23) N/A N/A 12.0 ppb (9) 0.46 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 18, 2020, 2 a.m. 18.0 ppb (17) 0.9 ppb (1) N/A 17.0 ppb (16) N/A N/A 20.0 ppb (15) 0.34 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 18, 2020, 1 a.m. 21.9 ppb (20) 2.0 ppb (2) N/A 20.0 ppb (19) N/A N/A 19.0 ppb (15) 0.39 ppb (4) N/A 4.0 μg/m3 (17) 20.0
 
Jan. 18, 2020, midnight 11.9 ppb (11) 1.4 ppb (1) N/A 11.0 ppb (10) N/A N/A 30.0 ppb (23) 0.26 ppb (3) N/A 5.0 μg/m3 (21) 23.0
 
Jan. 17, 2020, 11 p.m. 10.2 ppb (9) 1.7 ppb (2) N/A 8.0 ppb (7) N/A N/A 33.0 ppb (25) 0.22 ppb (2) N/A 5.0 μg/m3 (21) 25.0
 
Jan. 17, 2020, 10 p.m. 11.9 ppb (11) 2.6 ppb (2) N/A 9.0 ppb (8) N/A N/A 32.0 ppb (25) 0.24 ppb (3) N/A 4.0 μg/m3 (17) 25.0
 
Jan. 17, 2020, 9 p.m. 9.7 ppb (9) 2.2 ppb (2) N/A 7.0 ppb (6) N/A N/A 34.0 ppb (26) 0.21 ppb (2) N/A 4.0 μg/m3 (17) 26.0
 
Jan. 17, 2020, 8 p.m. 10.6 ppb (10) 2.7 ppb (3) N/A 8.0 ppb (7) N/A N/A 33.0 ppb (25) 0.22 ppb (2) N/A 4.0 μg/m3 (17) 25.0
 
Jan. 17, 2020, 7 p.m. 18.0 ppb (17) 5.3 ppb (5) N/A 13.0 ppb (12) N/A N/A 26.0 ppb (20) 0.28 ppb (3) N/A 16.0 μg/m3 (59) 59.0
 
Jan. 17, 2020, 6 p.m. 30.8 ppb (29) 11.7 ppb (11) N/A 19.0 ppb (18) N/A N/A 17.0 ppb (13) 0.42 ppb (5) N/A 5.0 μg/m3 (21) 29.0
 
Jan. 17, 2020, 5 p.m. 49.2 ppb (46) 22.8 ppb (21) N/A 26.0 ppb (24) N/A N/A 8.0 ppb (6) 0.61 ppb (7) N/A 6.0 μg/m3 (25) 46.0
 
Jan. 17, 2020, 4 p.m. 76.6 ppb (74) 47.6 ppb (44) N/A 29.0 ppb (27) N/A N/A 1.0 ppb (1) 0.92 ppb (10) N/A 3.0 μg/m3 (12) 74.0
 
Jan. 17, 2020, 3 p.m. 52.2 ppb (48) 24.2 ppb (22) N/A 28.0 ppb (26) N/A N/A 0.0 ppb (0) 0.66 ppb (7) N/A -1.0 μg/m3 (0) 48.0
 
Jan. 17, 2020, 2 p.m. 26.7 ppb (25) 6.2 ppb (6) N/A 20.0 ppb (19) N/A N/A 9.0 ppb (7) 0.34 ppb (4) N/A 1.0 μg/m3 (4) 25.0
 
Jan. 17, 2020, 1 p.m. 12.7 ppb (12) 1.4 ppb (1) N/A 11.0 ppb (10) N/A N/A 16.0 ppb (12) 0.22 ppb (2) N/A 2.0 μg/m3 (8) 12.0
 
Jan. 17, 2020, noon 9.1 ppb (8) 0.5 ppb (0) N/A 9.0 ppb (8) N/A N/A 18.0 ppb (14) 0.18 ppb (2) N/A 2.0 μg/m3 (8) 14.0
 
Jan. 17, 2020, 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. 17, 2020, 10 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. 17, 2020, 9 a.m. 9.4 ppb (9) 1.0 ppb (1) N/A 9.0 ppb (8) N/A N/A 20.0 ppb (15) 0.22 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 17, 2020, 8 a.m. 10.6 ppb (10) 1.3 ppb (1) N/A 9.0 ppb (8) N/A N/A 21.0 ppb (16) 0.21 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 17, 2020, 7 a.m. 9.8 ppb (9) 0.5 ppb (0) N/A 9.0 ppb (8) N/A N/A 21.0 ppb (16) 0.23 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2020, 6 a.m. 12.6 ppb (12) 0.6 ppb (1) N/A 12.0 ppb (11) N/A N/A 19.0 ppb (15) 0.26 ppb (3) N/A 1.0 μg/m3 (4) 15.0
 
Jan. 17, 2020, 5 a.m. 15.2 ppb (14) 0.5 ppb (0) N/A 15.0 ppb (14) N/A N/A 18.0 ppb (14) 0.3 ppb (3) N/A -1.0 μg/m3 (0) 14.0
 
Jan. 17, 2020, 4 a.m. 16.2 ppb (15) 1.2 ppb (1) N/A 15.0 ppb (14) N/A N/A 20.0 ppb (15) 0.32 ppb (4) N/A 3.0 μg/m3 (12) 15.0
 
Jan. 17, 2020, 3 a.m. 17.1 ppb (16) 1.3 ppb (1) N/A 16.0 ppb (15) N/A N/A 21.0 ppb (16) 0.3 ppb (3) N/A 1.0 μg/m3 (4) 16.0
 
Jan. 17, 2020, 2 a.m. 12.8 ppb (12) 0.7 ppb (1) N/A 12.0 ppb (11) N/A N/A 24.0 ppb (18) 0.25 ppb (3) N/A -1.0 μg/m3 (0) 18.0
 
Jan. 17, 2020, 1 a.m. 10.7 ppb (10) 0.5 ppb (0) N/A 10.0 ppb (9) N/A N/A 28.0 ppb (22) 0.25 ppb (3) N/A -2.0 μg/m3 (0) 22.0
 
Jan. 17, 2020, midnight 8.7 ppb (8) 1.0 ppb (1) N/A 8.0 ppb (7) N/A N/A 32.0 ppb (25) 0.21 ppb (2) N/A -1.0 μg/m3 (0) 25.0
 
Jan. 16, 2020, 11 p.m. 6.6 ppb (6) 0.9 ppb (1) N/A 6.0 ppb (6) N/A N/A 34.0 ppb (26) 0.18 ppb (2) N/A N/A 26.0
 
Jan. 16, 2020, 10 p.m. 6.4 ppb (6) 1.5 ppb (1) N/A 5.0 ppb (5) N/A N/A 36.0 ppb (28) 0.17 ppb (2) N/A 0.0 μg/m3 (0) 28.0
 
Jan. 16, 2020, 9 p.m. 11.1 ppb (10) 1.5 ppb (1) N/A 10.0 ppb (9) N/A N/A 30.0 ppb (23) 0.24 ppb (3) N/A 2.0 μg/m3 (8) 23.0
 
Jan. 16, 2020, 8 p.m. 13.5 ppb (12) 1.1 ppb (1) N/A 12.0 ppb (11) N/A N/A 27.0 ppb (21) 0.29 ppb (3) N/A 2.0 μg/m3 (8) 21.0
 
Jan. 16, 2020, 7 p.m. 15.1 ppb (14) 1.2 ppb (1) N/A 14.0 ppb (13) N/A N/A 26.0 ppb (20) 0.31 ppb (3) N/A -4.0 μg/m3 (0) 20.0
 
Jan. 16, 2020, 6 p.m. 11.3 ppb (10) 0.9 ppb (1) N/A 10.0 ppb (9) N/A N/A 30.0 ppb (23) 0.25 ppb (3) N/A 2.0 μg/m3 (8) 23.0
 
Jan. 16, 2020, 5 p.m. 4.8 ppb (4) 0.7 ppb (1) N/A 4.0 ppb (4) N/A N/A 31.0 ppb (24) 0.2 ppb (2) N/A N/A 24.0
 
Jan. 16, 2020, 4 p.m. 4.8 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 32.0 ppb (25) 0.19 ppb (2) N/A N/A 25.0
 
Jan. 16, 2020, 3 p.m. 5.2 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 32.0 ppb (25) 0.18 ppb (2) N/A N/A 25.0
 
Jan. 16, 2020, 2 p.m. 5.9 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 31.0 ppb (24) 0.18 ppb (2) N/A N/A 24.0
 
Jan. 16, 2020, 1 p.m. 5.6 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A N/A 28.0 ppb (22) 0.17 ppb (2) N/A N/A 22.0
 
Jan. 16, 2020, noon 2.7 ppb (3) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (25) 0.13 ppb (1) N/A N/A 25.0
 
Jan. 16, 2020, 9 a.m. 5.9 ppb (5) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 27.0 ppb (21) 0.18 ppb (2) N/A N/A 21.0
 
Jan. 16, 2020, 8 a.m. 8.2 ppb (8) 1.2 ppb (1) N/A 7.0 ppb (6) N/A N/A 27.0 ppb (21) 0.19 ppb (2) N/A N/A 21.0
 
Jan. 16, 2020, 7 a.m. 10.5 ppb (10) 0.7 ppb (1) N/A 10.0 ppb (9) N/A N/A 22.0 ppb (17) 0.24 ppb (3) N/A N/A 17.0
 
Jan. 16, 2020, 6 a.m. 15.2 ppb (14) 1.1 ppb (1) N/A 14.0 ppb (13) N/A N/A 18.0 ppb (14) 0.29 ppb (3) N/A N/A 14.0
 
Jan. 16, 2020, 5 a.m. 38.3 ppb (35) 11.2 ppb (10) N/A 27.0 ppb (25) N/A N/A 5.0 ppb (4) 0.5 ppb (6) N/A N/A 35.0
 
Jan. 16, 2020, 4 a.m. 67.0 ppb (64) 33.3 ppb (31) N/A 34.0 ppb (31) N/A N/A 0.0 ppb (0) 0.76 ppb (8) N/A N/A 64.0
 
Jan. 16, 2020, 3 a.m. 39.6 ppb (37) 6.8 ppb (6) N/A 33.0 ppb (31) N/A N/A 6.0 ppb (5) 0.56 ppb (6) N/A N/A 37.0
 
Jan. 16, 2020, 2 a.m. 22.5 ppb (21) 2.3 ppb (2) N/A 20.0 ppb (19) N/A N/A 18.0 ppb (14) 0.35 ppb (4) N/A N/A 21.0
 
Jan. 16, 2020, 1 a.m. 15.6 ppb (14) 1.2 ppb (1) N/A 14.0 ppb (13) N/A N/A 23.0 ppb (18) 0.3 ppb (3) N/A N/A 18.0
 
Jan. 16, 2020, midnight 16.9 ppb (16) 1.7 ppb (2) N/A 15.0 ppb (14) N/A N/A 22.0 ppb (17) 0.3 ppb (3) N/A N/A 17.0
 
Jan. 15, 2020, 11 p.m. 26.2 ppb (24) 4.9 ppb (5) N/A 21.0 ppb (19) N/A N/A 17.0 ppb (13) 0.38 ppb (4) N/A 13.0 μg/m3 (52) 52.0
 
Jan. 15, 2020, 10 p.m. 29.4 ppb (27) 7.8 ppb (7) N/A 22.0 ppb (20) N/A N/A 17.0 ppb (13) 0.4 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 15, 2020, 9 p.m. 26.9 ppb (25) 7.7 ppb (7) N/A 19.0 ppb (18) N/A N/A 19.0 ppb (15) 0.36 ppb (4) N/A N/A 25.0
 
Jan. 15, 2020, 8 p.m. 15.4 ppb (14) 3.8 ppb (4) N/A 12.0 ppb (11) N/A N/A 24.0 ppb (18) 0.3 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 15, 2020, 7 p.m. 25.1 ppb (23) 7.7 ppb (7) N/A 17.0 ppb (16) N/A N/A 18.0 ppb (14) 0.4 ppb (4) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 15, 2020, 5 p.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. 15, 2020, 4 p.m. 68.6 ppb (66) 40.9 ppb (38) N/A 28.0 ppb (26) N/A N/A 1.0 ppb (1) 0.78 ppb (9) N/A N/A 66.0
 
Jan. 15, 2020, 3 p.m. 69.9 ppb (67) 44.2 ppb (41) N/A 26.0 ppb (24) N/A N/A 0.0 ppb (0) 0.85 ppb (9) N/A 2.0 μg/m3 (8) 67.0
 
Jan. 15, 2020, 2 p.m. 37.5 ppb (35) 15.2 ppb (14) N/A 22.0 ppb (20) N/A N/A 0.0 ppb (0) 0.55 ppb (6) N/A 2.0 μg/m3 (8) 35.0
 
Jan. 15, 2020, 1 p.m. 43.8 ppb (41) 21.9 ppb (20) N/A 22.0 ppb (20) N/A N/A 0.0 ppb (0) 0.58 ppb (6) N/A 0.0 μg/m3 (0) 41.0
 
Jan. 15, 2020, noon 40.6 ppb (38) 21.5 ppb (20) N/A 19.0 ppb (18) N/A N/A 0.0 ppb (0) 0.56 ppb (6) N/A 3.0 μg/m3 (12) 38.0
 
Jan. 15, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 15, 2020, 10 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. 15, 2020, 9 a.m. 36.9 ppb (34) 13.4 ppb (12) N/A 24.0 ppb (22) N/A N/A 0.0 ppb (0) 0.6 ppb (7) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 15, 2020, 8 a.m. 57.4 ppb (54) 29.2 ppb (27) N/A 28.0 ppb (26) N/A N/A 1.0 ppb (1) 0.89 ppb (10) N/A 11.0 μg/m3 (46) 54.0
 
Jan. 15, 2020, 7 a.m. 71.3 ppb (68) 43.2 ppb (40) N/A 28.0 ppb (26) N/A N/A 0.0 ppb (0) 0.92 ppb (10) N/A 12.0 μg/m3 (50) 68.0
 
Jan. 15, 2020, 6 a.m. 59.6 ppb (56) 29.7 ppb (28) N/A 30.0 ppb (28) N/A N/A 0.0 ppb (0) 0.82 ppb (9) N/A 10.0 μg/m3 (42) 56.0
 
Jan. 15, 2020, 5 a.m. 51.6 ppb (48) 19.0 ppb (18) N/A 33.0 ppb (31) N/A N/A 0.0 ppb (0) 0.75 ppb (8) N/A 9.0 μg/m3 (38) 48.0
 
Jan. 15, 2020, 4 a.m. 29.4 ppb (27) 2.8 ppb (3) N/A 27.0 ppb (25) N/A N/A 8.0 ppb (6) 0.49 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 15, 2020, 3 a.m. 15.0 ppb (14) 0.8 ppb (1) N/A 14.0 ppb (13) N/A N/A 23.0 ppb (18) 0.32 ppb (4) N/A 4.0 μg/m3 (17) 18.0
 
Jan. 15, 2020, 2 a.m. 13.2 ppb (12) 0.9 ppb (1) N/A 12.0 ppb (11) N/A N/A 25.0 ppb (19) 0.28 ppb (3) N/A 1.0 μg/m3 (4) 19.0
 
Jan. 15, 2020, 1 a.m. 10.4 ppb (10) 0.8 ppb (1) N/A 10.0 ppb (9) N/A N/A 30.0 ppb (23) 0.25 ppb (3) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 15, 2020, midnight 6.4 ppb (6) 0.7 ppb (1) N/A 6.0 ppb (6) N/A N/A 35.0 ppb (27) 0.2 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 14, 2020, 11 p.m. 5.2 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (28) 0.17 ppb (2) N/A 4.0 μg/m3 (17) 28.0
 
Jan. 14, 2020, 10 p.m. 6.7 ppb (6) 1.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 35.0 ppb (27) 0.2 ppb (2) N/A 5.0 μg/m3 (21) 27.0
 
Jan. 14, 2020, 9 p.m. 6.2 ppb (6) 1.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 36.0 ppb (28) 0.18 ppb (2) N/A 5.0 μg/m3 (21) 28.0
 
Jan. 14, 2020, 8 p.m. 5.4 ppb (5) 1.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (28) 0.16 ppb (2) N/A 3.0 μg/m3 (12) 28.0
 
Jan. 14, 2020, 7 p.m. 7.7 ppb (7) 2.2 ppb (2) N/A 5.0 ppb (5) N/A N/A 35.0 ppb (27) 0.19 ppb (2) N/A 4.0 μg/m3 (17) 27.0
 
Jan. 14, 2020, 6 p.m. 15.7 ppb (15) 4.4 ppb (4) N/A 11.0 ppb (10) N/A N/A 29.0 ppb (22) 0.27 ppb (3) N/A N/A 22.0
 
Jan. 14, 2020, 5 p.m. 29.0 ppb (27) 7.8 ppb (7) N/A 21.0 ppb (19) N/A N/A 19.0 ppb (15) 0.45 ppb (5) N/A 5.0 μg/m3 (21) 27.0
 
Jan. 14, 2020, 4 p.m. 43.3 ppb (40) 12.8 ppb (12) N/A 30.0 ppb (28) N/A N/A 7.0 ppb (5) 0.61 ppb (7) N/A 2.0 μg/m3 (8) 40.0
 
Jan. 14, 2020, 3 p.m. 22.0 ppb (20) 1.9 ppb (2) N/A 20.0 ppb (19) N/A N/A 17.0 ppb (13) 0.35 ppb (4) N/A 0.0 μg/m3 (0) 20.0
 
Jan. 14, 2020, 2 p.m. 32.1 ppb (30) 4.9 ppb (5) N/A 27.0 ppb (25) N/A N/A 6.0 ppb (5) 0.42 ppb (5) N/A 2.0 μg/m3 (8) 30.0
 
Jan. 14, 2020, 1 p.m. 10.4 ppb (10) 0.6 ppb (1) N/A 10.0 ppb (9) N/A N/A 24.0 ppb (18) 0.23 ppb (3) N/A 2.0 μg/m3 (8) 18.0
 
Jan. 14, 2020, noon 6.3 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A N/A 28.0 ppb (22) 0.16 ppb (2) N/A 4.0 μg/m3 (17) 22.0
 
Jan. 14, 2020, 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
 
Jan. 14, 2020, 10 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
 
Jan. 14, 2020, 9 a.m. 6.5 ppb (6) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A 24.0 ppb (18) 0.19 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 14, 2020, 8 a.m. 5.9 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 26.0 ppb (20) 0.18 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 14, 2020, 7 a.m. 7.4 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A N/A 23.0 ppb (18) 0.2 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 14, 2020, 6 a.m. 11.4 ppb (11) 0.8 ppb (1) N/A 11.0 ppb (10) N/A N/A 17.0 ppb (13) 0.26 ppb (3) N/A 3.0 μg/m3 (12) 13.0
 
Jan. 14, 2020, 5 a.m. 12.8 ppb (12) 0.9 ppb (1) N/A 12.0 ppb (11) N/A N/A 17.0 ppb (13) 0.28 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 14, 2020, 4 a.m. 23.9 ppb (22) 1.5 ppb (1) N/A 23.0 ppb (21) N/A N/A 10.0 ppb (8) 0.43 ppb (5) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 14, 2020, 3 a.m. 20.6 ppb (19) 0.7 ppb (1) N/A 20.0 ppb (19) N/A N/A 16.0 ppb (12) 0.38 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 14, 2020, 2 a.m. 10.9 ppb (10) 0.8 ppb (1) N/A 10.0 ppb (9) N/A N/A 29.0 ppb (22) 0.25 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 14, 2020, 1 a.m. 10.4 ppb (10) 0.7 ppb (1) N/A 10.0 ppb (9) N/A N/A 30.0 ppb (23) 0.27 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 14, 2020, midnight 7.0 ppb (6) 0.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 34.0 ppb (26) 0.22 ppb (2) N/A 2.0 μg/m3 (8) 26.0
 
Jan. 13, 2020, 11 p.m. 6.6 ppb (6) 1.1 ppb (1) N/A 6.0 ppb (6) N/A N/A 34.0 ppb (26) 0.21 ppb (2) N/A 1.0 μg/m3 (4) 26.0
 
Jan. 13, 2020, 10 p.m. 10.9 ppb (10) 1.3 ppb (1) N/A 10.0 ppb (9) N/A N/A 30.0 ppb (23) 0.24 ppb (3) N/A 2.0 μg/m3 (8) 23.0
 
Jan. 13, 2020, 9 p.m. 11.0 ppb (10) 1.8 ppb (2) N/A 9.0 ppb (8) N/A N/A 31.0 ppb (24) 0.25 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 13, 2020, 8 p.m. 9.6 ppb (9) 2.1 ppb (2) N/A 8.0 ppb (7) N/A N/A 32.0 ppb (25) 0.25 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 13, 2020, 7 p.m. 9.8 ppb (9) 2.3 ppb (2) N/A 8.0 ppb (7) N/A N/A 32.0 ppb (25) 0.24 ppb (3) N/A 4.0 μg/m3 (17) 25.0
 
Jan. 13, 2020, 6 p.m. 17.8 ppb (16) 5.6 ppb (5) N/A 12.0 ppb (11) N/A N/A 22.0 ppb (17) 0.3 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 13, 2020, 5 p.m. 32.5 ppb (30) 14.0 ppb (13) N/A 18.0 ppb (17) N/A N/A 11.0 ppb (8) 0.43 ppb (5) N/A 4.0 μg/m3 (17) 30.0
 
Jan. 13, 2020, 4 p.m. 48.7 ppb (45) 23.4 ppb (22) N/A 25.0 ppb (23) N/A N/A 4.0 ppb (3) 0.63 ppb (7) N/A 3.0 μg/m3 (12) 45.0
 
Jan. 13, 2020, 3 p.m. 40.9 ppb (38) 16.1 ppb (15) N/A 25.0 ppb (23) N/A N/A 1.0 ppb (1) 0.58 ppb (6) N/A 1.0 μg/m3 (4) 38.0
 
Jan. 13, 2020, 2 p.m. 31.7 ppb (29) 8.8 ppb (8) N/A 23.0 ppb (21) N/A N/A 1.0 ppb (1) 0.45 ppb (5) N/A 2.0 μg/m3 (8) 29.0
 
Jan. 13, 2020, 1 p.m. 19.3 ppb (18) 2.2 ppb (2) N/A 17.0 ppb (16) N/A N/A 6.0 ppb (5) 0.32 ppb (4) N/A 4.0 μg/m3 (17) 18.0
 
Jan. 13, 2020, noon 11.2 ppb (10) 0.9 ppb (1) N/A 10.0 ppb (9) N/A N/A 13.0 ppb (10) 0.21 ppb (2) N/A 3.0 μg/m3 (12) 12.0
 
Jan. 13, 2020, 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
 
Jan. 13, 2020, 10 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