ID: 1928

AQSQID: 060010009

Site Name: Oakland

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

Updated: Jan. 21, 2021, 5:31 p.m.

Location: Oakland (N Stonehurst), CA

Reporting: True, Located: True

Current AQI: 69.0

Oakland (N Stonehurst) CA, US: 37.743061, -122.169907

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 21, 2021, 4 p.m. 70.1 ppb (69) 45.5 ppb (43) N/A 25.0 ppb (24) N/A N/A 2.0 ppb (2) 1.08 ppb (13) N/A 13.0 μg/m3 (53) 69.0
 
Jan. 21, 2021, 3 p.m. 29.6 ppb (28) 11.5 ppb (11) N/A 18.0 ppb (17) N/A N/A 5.0 ppb (5) 0.52 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 21, 2021, 2 p.m. 18.5 ppb (18) 3.7 ppb (4) N/A 15.0 ppb (15) N/A N/A 8.0 ppb (8) 0.36 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 21, 2021, 1 p.m. 20.4 ppb (20) 3.5 ppb (4) N/A 17.0 ppb (17) N/A N/A 6.0 ppb (6) 0.43 ppb (5) N/A 7.0 μg/m3 (30) 30.0
 
Jan. 21, 2021, noon 22.3 ppb (22) 3.8 ppb (4) N/A 19.0 ppb (18) N/A N/A 5.0 ppb (5) 0.45 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 21, 2021, 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
 
Jan. 21, 2021, 10 a.m. 19.0 ppb (18) 2.3 ppb (3) N/A 17.0 ppb (17) N/A N/A 8.0 ppb (8) 0.41 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 21, 2021, 9 a.m. 14.1 ppb (14) 2.1 ppb (2) N/A 12.0 ppb (12) N/A N/A 13.0 ppb (13) 0.36 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 21, 2021, 8 a.m. 17.5 ppb (17) 2.1 ppb (2) N/A 15.0 ppb (15) N/A N/A 11.0 ppb (11) 0.41 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 21, 2021, 7 a.m. 18.0 ppb (17) 2.0 ppb (2) N/A 16.0 ppb (16) N/A N/A 11.0 ppb (11) 0.42 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 21, 2021, 6 a.m. 16.3 ppb (16) 2.4 ppb (3) N/A 14.0 ppb (14) N/A N/A 14.0 ppb (13) 0.44 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 21, 2021, 5 a.m. 26.3 ppb (25) 6.8 ppb (7) N/A 19.0 ppb (18) N/A N/A 10.0 ppb (10) 0.55 ppb (7) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 21, 2021, 4 a.m. 26.1 ppb (25) 4.2 ppb (4) N/A 22.0 ppb (21) N/A N/A 8.0 ppb (8) 0.58 ppb (7) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 21, 2021, 3 a.m. 35.9 ppb (34) 9.3 ppb (9) N/A 27.0 ppb (26) N/A N/A 5.0 ppb (5) 0.65 ppb (8) N/A 16.0 μg/m3 (60) 60.0
 
Jan. 21, 2021, 2 a.m. 51.8 ppb (49) 17.0 ppb (17) N/A 35.0 ppb (34) N/A N/A 3.0 ppb (3) 0.9 ppb (11) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 21, 2021, 1 a.m. 32.7 ppb (31) 2.8 ppb (3) N/A 30.0 ppb (29) N/A N/A 10.0 ppb (10) 0.5 ppb (6) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 21, 2021, midnight 30.0 ppb (29) 6.2 ppb (6) N/A 24.0 ppb (23) N/A N/A 17.0 ppb (16) 0.4 ppb (5) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 20, 2021, 11 p.m. 29.3 ppb (28) 7.6 ppb (8) N/A 22.0 ppb (21) N/A N/A 17.0 ppb (16) 0.38 ppb (5) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 20, 2021, 10 p.m. 31.6 ppb (30) 10.5 ppb (10) N/A 21.0 ppb (20) N/A N/A 18.0 ppb (17) 0.45 ppb (6) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 20, 2021, 9 p.m. 35.1 ppb (34) 12.7 ppb (12) N/A 22.0 ppb (21) N/A N/A 16.0 ppb (15) 0.43 ppb (5) N/A 16.0 μg/m3 (60) 60.0
 
Jan. 20, 2021, 8 p.m. 39.0 ppb (37) 15.0 ppb (15) N/A 24.0 ppb (23) N/A N/A 15.0 ppb (14) 0.47 ppb (6) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 20, 2021, 7 p.m. 37.9 ppb (36) 14.5 ppb (14) N/A 23.0 ppb (22) N/A N/A 15.0 ppb (14) 0.5 ppb (6) N/A 16.0 μg/m3 (60) 60.0
 
Jan. 20, 2021, 6 p.m. 18.7 ppb (18) 6.1 ppb (6) N/A 13.0 ppb (13) N/A N/A 21.0 ppb (20) 0.43 ppb (5) N/A 8.0 μg/m3 (34) 34.0
 
Jan. 20, 2021, 5 p.m. 29.4 ppb (28) 11.6 ppb (11) N/A 18.0 ppb (17) N/A N/A 13.0 ppb (13) 0.61 ppb (7) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 20, 2021, 4 p.m. 44.0 ppb (42) 20.4 ppb (20) N/A 24.0 ppb (23) N/A N/A 5.0 ppb (5) 0.76 ppb (10) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 20, 2021, 3 p.m. 65.6 ppb (64) 37.9 ppb (36) N/A 28.0 ppb (27) N/A N/A 2.0 ppb (2) 0.95 ppb (11) N/A 18.0 μg/m3 (64) 64.0
 
Jan. 20, 2021, 2 p.m. 28.4 ppb (27) 6.7 ppb (7) N/A 22.0 ppb (21) N/A N/A 6.0 ppb (6) 0.52 ppb (6) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 20, 2021, 1 p.m. 24.5 ppb (24) 4.4 ppb (5) N/A 20.0 ppb (19) N/A N/A 6.0 ppb (6) 0.51 ppb (6) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 20, 2021, noon 14.6 ppb (14) 1.7 ppb (2) N/A 13.0 ppb (13) N/A N/A 14.0 ppb (13) 0.35 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 20, 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. 20, 2021, 10 a.m. 8.1 ppb (8) 0.5 ppb (1) N/A 8.0 ppb (8) N/A N/A 23.0 ppb (22) 0.31 ppb (4) N/A 7.0 μg/m3 (30) 30.0
 
Jan. 20, 2021, 9 a.m. 14.7 ppb (14) 0.9 ppb (1) N/A 14.0 ppb (14) N/A N/A 19.0 ppb (18) 0.36 ppb (5) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 20, 2021, 8 a.m. 4.1 ppb (4) 0.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 33.0 ppb (31) 0.26 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 20, 2021, 7 a.m. 5.2 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 32.0 ppb (30) 0.28 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
Jan. 20, 2021, 6 a.m. 2.8 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (33) 0.24 ppb (3) N/A 7.0 μg/m3 (30) 33.0
 
Jan. 20, 2021, 5 a.m. 3.0 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (32) 0.25 ppb (3) N/A 6.0 μg/m3 (25) 32.0
 
Jan. 20, 2021, 4 a.m. 4.1 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 34.0 ppb (32) 0.26 ppb (4) N/A 6.0 μg/m3 (25) 32.0
 
Jan. 20, 2021, 3 a.m. 3.8 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (33) 0.25 ppb (3) N/A 2.0 μg/m3 (9) 33.0
 
Jan. 20, 2021, 2 a.m. 4.3 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (33) 0.25 ppb (3) N/A 4.0 μg/m3 (17) 33.0
 
Jan. 20, 2021, 1 a.m. 5.4 ppb (6) 1.2 ppb (2) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (32) 0.27 ppb (4) N/A 6.0 μg/m3 (25) 32.0
 
Jan. 20, 2021, midnight 4.3 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (35) 0.26 ppb (4) N/A 5.0 μg/m3 (21) 35.0
 
Jan. 19, 2021, 11 p.m. 3.3 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 38.0 ppb (36) 0.23 ppb (3) N/A 1.0 μg/m3 (5) 36.0
 
Jan. 19, 2021, 10 p.m. 2.9 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (34) 0.24 ppb (3) N/A 5.0 μg/m3 (21) 34.0
 
Jan. 19, 2021, 9 p.m. 3.4 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (33) 0.24 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
Jan. 19, 2021, 8 p.m. 2.9 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (32) 0.26 ppb (4) N/A 6.0 μg/m3 (25) 32.0
 
Jan. 19, 2021, 7 p.m. 3.4 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 33.0 ppb (31) 0.28 ppb (4) N/A 7.0 μg/m3 (30) 31.0
 
Jan. 19, 2021, 6 p.m. 3.9 ppb (4) 1.2 ppb (2) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (30) 0.29 ppb (4) N/A 3.0 μg/m3 (13) 30.0
 
Jan. 19, 2021, 5 p.m. 3.8 ppb (4) 1.1 ppb (2) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (30) 0.29 ppb (4) N/A 3.0 μg/m3 (13) 30.0
 
Jan. 19, 2021, 4 p.m. 3.7 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (30) 0.29 ppb (4) N/A N/A 30.0
 
Jan. 19, 2021, 3 p.m. 2.8 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (32) 0.28 ppb (4) N/A 3.0 μg/m3 (13) 32.0
 
Jan. 19, 2021, 2 p.m. 2.0 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A 35.0 ppb (33) 0.27 ppb (4) N/A 4.0 μg/m3 (17) 33.0
 
Jan. 19, 2021, 1 p.m. 1.6 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A N/A 36.0 ppb (34) 0.26 ppb (4) N/A 5.0 μg/m3 (21) 34.0
 
Jan. 19, 2021, noon 1.4 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (35) 0.25 ppb (3) N/A 4.0 μg/m3 (17) 35.0
 
Jan. 19, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 5.0
 
Jan. 19, 2021, 10 a.m. 1.3 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A N/A 36.0 ppb (34) 0.24 ppb (3) N/A 5.0 μg/m3 (21) 34.0
 
Jan. 19, 2021, 9 a.m. 1.2 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (35) 0.23 ppb (3) N/A 5.0 μg/m3 (21) 35.0
 
Jan. 19, 2021, 8 a.m. 1.7 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (38) 0.22 ppb (3) N/A -1.0 μg/m3 (0) 38.0
 
Jan. 19, 2021, 7 a.m. 1.7 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (38) 0.22 ppb (3) N/A 1.0 μg/m3 (5) 38.0
 
Jan. 19, 2021, 6 a.m. 2.0 ppb (2) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (38) 0.22 ppb (3) N/A 5.0 μg/m3 (21) 38.0
 
Jan. 19, 2021, 5 a.m. 2.4 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (38) 0.23 ppb (3) N/A 7.0 μg/m3 (30) 38.0
 
Jan. 19, 2021, 4 a.m. 5.6 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 38.0 ppb (36) 0.28 ppb (4) N/A 8.0 μg/m3 (34) 36.0
 
Jan. 19, 2021, 3 a.m. 35.0 ppb (34) 7.6 ppb (8) N/A 27.0 ppb (26) N/A N/A 11.0 ppb (11) 0.77 ppb (10) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 19, 2021, 2 a.m. 28.3 ppb (27) 4.4 ppb (5) N/A 24.0 ppb (23) N/A N/A 16.0 ppb (15) 0.69 ppb (8) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 19, 2021, 1 a.m. 14.5 ppb (14) 1.7 ppb (2) N/A 13.0 ppb (13) N/A N/A 30.0 ppb (28) 0.47 ppb (6) N/A 4.0 μg/m3 (17) 28.0
 
Jan. 19, 2021, midnight 7.1 ppb (7) 1.4 ppb (2) N/A 6.0 ppb (6) N/A N/A 37.0 ppb (35) 0.29 ppb (4) N/A 1.0 μg/m3 (5) 35.0
 
Jan. 18, 2021, 11 p.m. 7.0 ppb (7) 1.4 ppb (2) N/A 6.0 ppb (6) N/A N/A 38.0 ppb (36) 0.28 ppb (4) N/A 3.0 μg/m3 (13) 36.0
 
Jan. 18, 2021, 10 p.m. 4.9 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A 39.0 ppb (37) 0.27 ppb (4) N/A 2.0 μg/m3 (9) 37.0
 
Jan. 18, 2021, 9 p.m. 6.5 ppb (7) 1.1 ppb (2) N/A 5.0 ppb (5) N/A N/A 38.0 ppb (36) 0.28 ppb (4) N/A 2.0 μg/m3 (9) 36.0
 
Jan. 18, 2021, 8 p.m. 6.6 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 38.0 ppb (36) 0.28 ppb (4) N/A 2.0 μg/m3 (9) 36.0
 
Jan. 18, 2021, 7 p.m. 4.7 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 39.0 ppb (37) 0.27 ppb (4) N/A 4.0 μg/m3 (17) 37.0
 
Jan. 18, 2021, 6 p.m. 10.7 ppb (11) 3.5 ppb (4) N/A 7.0 ppb (7) N/A N/A 34.0 ppb (32) 0.31 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
Jan. 18, 2021, 5 p.m. 24.3 ppb (23) 6.9 ppb (7) N/A 17.0 ppb (17) N/A N/A 20.0 ppb (19) 0.48 ppb (6) N/A 8.0 μg/m3 (34) 34.0
 
Jan. 18, 2021, 4 p.m. 59.3 ppb (57) 32.3 ppb (31) N/A 27.0 ppb (26) N/A N/A 6.0 ppb (6) 0.85 ppb (10) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 18, 2021, 3 p.m. 63.9 ppb (62) 40.1 ppb (38) N/A 24.0 ppb (23) N/A N/A 0.0 ppb (0) 0.91 ppb (11) N/A 15.0 μg/m3 (58) 62.0
 
Jan. 18, 2021, 2 p.m. 53.6 ppb (51) 32.6 ppb (31) N/A 21.0 ppb (20) N/A N/A 0.0 ppb (0) 0.82 ppb (10) N/A 18.0 μg/m3 (64) 64.0
 
Jan. 18, 2021, 1 p.m. 45.6 ppb (44) 22.5 ppb (22) N/A 23.0 ppb (22) N/A N/A 0.0 ppb (0) 0.71 ppb (8) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 18, 2021, noon 40.2 ppb (38) 16.7 ppb (16) N/A 24.0 ppb (23) N/A N/A 0.0 ppb (0) 0.67 ppb (8) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 18, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (53) 53.0
 
Jan. 18, 2021, 10 a.m. 27.6 ppb (27) 4.5 ppb (5) N/A 23.0 ppb (22) N/A N/A 2.0 ppb (2) 0.62 ppb (7) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 18, 2021, 9 a.m. 42.3 ppb (40) 17.7 ppb (17) N/A 25.0 ppb (24) N/A N/A 1.0 ppb (1) 0.83 ppb (10) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 18, 2021, 8 a.m. 24.2 ppb (23) 4.0 ppb (4) N/A 20.0 ppb (19) N/A N/A 3.0 ppb (3) 0.66 ppb (8) N/A 14.0 μg/m3 (55) 55.0
 
Jan. 18, 2021, 7 a.m. 29.9 ppb (29) 8.1 ppb (8) N/A 22.0 ppb (21) N/A N/A 3.0 ppb (3) 0.76 ppb (10) N/A 14.0 μg/m3 (55) 55.0
 
Jan. 18, 2021, 6 a.m. 19.6 ppb (19) 2.3 ppb (3) N/A 17.0 ppb (17) N/A N/A 7.0 ppb (7) 0.63 ppb (7) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 18, 2021, 5 a.m. 50.4 ppb (48) 25.2 ppb (24) N/A 25.0 ppb (24) N/A N/A 3.0 ppb (3) 1.38 ppb (16) N/A 21.0 μg/m3 (70) 70.0
 
Jan. 18, 2021, 4 a.m. 51.4 ppb (49) 24.0 ppb (23) N/A 27.0 ppb (26) N/A N/A 2.0 ppb (2) 1.35 ppb (16) N/A 16.0 μg/m3 (60) 60.0
 
Jan. 18, 2021, 3 a.m. 59.7 ppb (58) 27.3 ppb (26) N/A 32.0 ppb (31) N/A N/A 2.0 ppb (2) 1.49 ppb (18) N/A 25.0 μg/m3 (79) 79.0
 
Jan. 18, 2021, 2 a.m. 31.2 ppb (30) 4.2 ppb (4) N/A 27.0 ppb (26) N/A N/A 7.0 ppb (7) 0.92 ppb (11) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 18, 2021, 1 a.m. 31.8 ppb (30) 6.3 ppb (6) N/A 26.0 ppb (25) N/A N/A 16.0 ppb (15) 1.08 ppb (13) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 18, 2021, midnight 18.9 ppb (18) 2.0 ppb (2) N/A 17.0 ppb (17) N/A N/A 25.0 ppb (24) 0.52 ppb (6) N/A 8.0 μg/m3 (34) 34.0
 
Jan. 17, 2021, 11 p.m. 17.6 ppb (17) 3.3 ppb (4) N/A 14.0 ppb (14) N/A N/A 24.0 ppb (23) 0.42 ppb (5) N/A 5.0 μg/m3 (21) 23.0
 
Jan. 17, 2021, 10 p.m. 21.4 ppb (21) 6.0 ppb (6) N/A 15.0 ppb (15) N/A N/A 19.0 ppb (18) 0.41 ppb (5) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 17, 2021, 9 p.m. 21.7 ppb (21) 7.1 ppb (7) N/A 15.0 ppb (15) N/A N/A 17.0 ppb (16) 0.41 ppb (5) N/A 7.0 μg/m3 (30) 30.0
 
Jan. 17, 2021, 8 p.m. 21.5 ppb (21) 7.8 ppb (8) N/A 14.0 ppb (14) N/A N/A 14.0 ppb (13) 0.43 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2021, 7 p.m. 14.2 ppb (14) 5.2 ppb (5) N/A 9.0 ppb (9) N/A N/A 19.0 ppb (18) 0.4 ppb (5) N/A 8.0 μg/m3 (34) 34.0
 
Jan. 17, 2021, 6 p.m. 5.1 ppb (5) 1.4 ppb (2) N/A 4.0 ppb (4) N/A N/A 27.0 ppb (25) 0.33 ppb (4) N/A 3.0 μg/m3 (13) 25.0
 
Jan. 17, 2021, 5 p.m. 4.4 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (25) 0.32 ppb (4) N/A 3.0 μg/m3 (13) 25.0
 
Jan. 17, 2021, 4 p.m. 11.4 ppb (11) 2.5 ppb (3) N/A 9.0 ppb (9) N/A N/A 19.0 ppb (18) 0.38 ppb (5) N/A 7.0 μg/m3 (30) 30.0
 
Jan. 17, 2021, 3 p.m. 28.6 ppb (27) 7.6 ppb (8) N/A 21.0 ppb (20) N/A N/A 7.0 ppb (7) 0.64 ppb (7) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 17, 2021, 2 p.m. 11.0 ppb (11) 0.8 ppb (1) N/A 10.0 ppb (10) N/A N/A 19.0 ppb (18) 0.39 ppb (5) N/A 7.0 μg/m3 (30) 30.0
 
Jan. 17, 2021, 1 p.m. 23.0 ppb (22) 5.4 ppb (6) N/A 18.0 ppb (17) N/A N/A 9.0 ppb (9) 0.45 ppb (6) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 17, 2021, noon 17.6 ppb (17) 6.6 ppb (7) N/A 11.0 ppb (11) N/A N/A 16.0 ppb (15) 0.43 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 17, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 17, 2021, 10 a.m. 67.5 ppb (66) 51.8 ppb (49) N/A 16.0 ppb (16) N/A N/A 1.0 ppb (1) 1.54 ppb (18) N/A 23.0 μg/m3 (74) 74.0
 
Jan. 17, 2021, 9 a.m. 44.3 ppb (42) 29.8 ppb (29) N/A 14.0 ppb (14) N/A N/A 1.0 ppb (1) 1.12 ppb (13) N/A 16.0 μg/m3 (60) 60.0
 
Jan. 17, 2021, 8 a.m. 24.0 ppb (23) 11.0 ppb (11) N/A 13.0 ppb (13) N/A N/A 1.0 ppb (1) 0.8 ppb (10) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 17, 2021, 7 a.m. 26.7 ppb (26) 10.7 ppb (11) N/A 16.0 ppb (16) N/A N/A 1.0 ppb (1) 0.79 ppb (10) N/A 16.0 μg/m3 (60) 60.0
 
Jan. 17, 2021, 6 a.m. 37.8 ppb (36) 20.4 ppb (20) N/A 17.0 ppb (17) N/A N/A 0.0 ppb (0) 0.89 ppb (11) N/A 20.0 μg/m3 (68) 68.0
 
Jan. 17, 2021, 5 a.m. 49.0 ppb (47) 29.3 ppb (28) N/A 20.0 ppb (19) N/A N/A 0.0 ppb (0) 0.97 ppb (12) N/A 16.0 μg/m3 (60) 60.0
 
Jan. 17, 2021, 4 a.m. 38.4 ppb (37) 18.2 ppb (18) N/A 20.0 ppb (19) N/A N/A 0.0 ppb (0) 0.78 ppb (10) N/A 21.0 μg/m3 (70) 70.0
 
Jan. 17, 2021, 3 a.m. 38.3 ppb (37) 17.9 ppb (17) N/A 20.0 ppb (19) N/A N/A 0.0 ppb (0) 0.69 ppb (8) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 17, 2021, 2 a.m. 39.9 ppb (38) 18.3 ppb (18) N/A 22.0 ppb (21) N/A N/A 0.0 ppb (0) 0.66 ppb (8) N/A 19.0 μg/m3 (66) 66.0
 
Jan. 17, 2021, 1 a.m. 43.0 ppb (41) 20.0 ppb (19) N/A 23.0 ppb (22) N/A N/A 0.0 ppb (0) 0.56 ppb (7) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 17, 2021, midnight 27.4 ppb (26) 7.4 ppb (7) N/A 20.0 ppb (19) N/A N/A 9.0 ppb (9) 0.51 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 16, 2021, 11 p.m. 16.7 ppb (16) 3.3 ppb (4) N/A 13.0 ppb (13) N/A N/A 23.0 ppb (22) 0.48 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 16, 2021, 10 p.m. 14.0 ppb (14) 3.4 ppb (4) N/A 11.0 ppb (11) N/A N/A 25.0 ppb (24) 0.41 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 16, 2021, 9 p.m. 24.4 ppb (24) 7.7 ppb (8) N/A 17.0 ppb (17) N/A N/A 17.0 ppb (16) 0.46 ppb (6) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 16, 2021, 8 p.m. 23.7 ppb (23) 7.5 ppb (8) N/A 16.0 ppb (16) N/A N/A 18.0 ppb (17) 0.49 ppb (6) N/A 16.0 μg/m3 (60) 60.0
 
Jan. 16, 2021, 7 p.m. 43.8 ppb (42) 19.9 ppb (19) N/A 24.0 ppb (23) N/A N/A 11.0 ppb (11) 0.67 ppb (8) N/A 20.0 μg/m3 (68) 68.0
 
Jan. 16, 2021, 6 p.m. 49.6 ppb (47) 25.0 ppb (24) N/A 25.0 ppb (24) N/A N/A 8.0 ppb (8) 0.74 ppb (8) N/A 20.0 μg/m3 (68) 68.0
 
Jan. 16, 2021, 5 p.m. 64.2 ppb (62) 37.8 ppb (36) N/A 27.0 ppb (26) N/A N/A 3.0 ppb (3) 1.08 ppb (13) N/A 20.0 μg/m3 (68) 68.0
 
Jan. 16, 2021, 4 p.m. 33.8 ppb (32) 20.0 ppb (19) N/A 14.0 ppb (14) N/A N/A 3.0 ppb (3) 0.72 ppb (8) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 16, 2021, 3 p.m. 59.4 ppb (57) 42.9 ppb (41) N/A 17.0 ppb (17) N/A N/A 0.0 ppb (0) 1.06 ppb (13) N/A 12.0 μg/m3 (50) 57.0
 
Jan. 16, 2021, 2 p.m. 26.5 ppb (25) 11.6 ppb (11) N/A 15.0 ppb (15) N/A N/A 1.0 ppb (1) 0.61 ppb (7) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 16, 2021, 1 p.m. 36.9 ppb (35) 21.2 ppb (20) N/A 16.0 ppb (16) N/A N/A 1.0 ppb (1) 0.69 ppb (8) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 16, 2021, noon 15.4 ppb (15) 3.2 ppb (4) N/A 12.0 ppb (12) N/A N/A 4.0 ppb (4) 0.43 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 16, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (53) 53.0
 
Jan. 16, 2021, 10 a.m. 40.4 ppb (39) 21.6 ppb (21) N/A 19.0 ppb (18) N/A N/A 0.0 ppb (0) 1.03 ppb (12) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 16, 2021, 9 a.m. 25.2 ppb (24) 7.8 ppb (8) N/A 17.0 ppb (17) N/A N/A 2.0 ppb (2) 0.72 ppb (8) N/A 18.0 μg/m3 (64) 64.0
 
Jan. 16, 2021, 8 a.m. 39.8 ppb (38) 18.1 ppb (18) N/A 22.0 ppb (21) N/A N/A 1.0 ppb (1) 1.05 ppb (13) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 16, 2021, 7 a.m. 60.4 ppb (58) 32.2 ppb (31) N/A 28.0 ppb (27) N/A N/A 1.0 ppb (1) 1.27 ppb (15) N/A 23.0 μg/m3 (74) 74.0
 
Jan. 16, 2021, 6 a.m. 33.3 ppb (32) 13.7 ppb (13) N/A 20.0 ppb (19) N/A N/A 8.0 ppb (8) 0.83 ppb (10) N/A 18.0 μg/m3 (64) 64.0
 
Jan. 16, 2021, 5 a.m. 12.5 ppb (12) 1.3 ppb (2) N/A 11.0 ppb (11) N/A N/A 16.0 ppb (15) 0.47 ppb (6) N/A 8.0 μg/m3 (34) 34.0
 
Jan. 16, 2021, 4 a.m. 35.0 ppb (34) 13.3 ppb (13) N/A 22.0 ppb (21) N/A N/A 9.0 ppb (9) 0.81 ppb (10) N/A 20.0 μg/m3 (68) 68.0
 
Jan. 16, 2021, 3 a.m. 53.6 ppb (51) 20.9 ppb (20) N/A 33.0 ppb (32) N/A N/A 2.0 ppb (2) 1.0 ppb (12) N/A 22.0 μg/m3 (72) 72.0
 
Jan. 16, 2021, 2 a.m. 26.4 ppb (25) 5.3 ppb (5) N/A 21.0 ppb (20) N/A N/A 13.0 ppb (13) 0.74 ppb (8) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 16, 2021, 1 a.m. 12.2 ppb (12) 1.8 ppb (2) N/A 10.0 ppb (10) N/A N/A 23.0 ppb (22) 0.47 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 16, 2021, midnight 7.7 ppb (8) 1.4 ppb (2) N/A 6.0 ppb (6) N/A N/A 28.0 ppb (26) 0.4 ppb (5) N/A 6.0 μg/m3 (25) 26.0
 
Jan. 15, 2021, 11 p.m. 7.9 ppb (8) 1.7 ppb (2) N/A 6.0 ppb (6) N/A N/A 29.0 ppb (27) 0.39 ppb (5) N/A 5.0 μg/m3 (21) 27.0
 
Jan. 15, 2021, 10 p.m. 34.4 ppb (33) 13.3 ppb (13) N/A 21.0 ppb (20) N/A N/A 11.0 ppb (11) 0.54 ppb (6) N/A 22.0 μg/m3 (72) 72.0
 
Jan. 15, 2021, 9 p.m. 34.1 ppb (33) 15.7 ppb (15) N/A 18.0 ppb (17) N/A N/A 8.0 ppb (8) 0.53 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 15, 2021, 8 p.m. 36.7 ppb (35) 19.3 ppb (19) N/A 17.0 ppb (17) N/A N/A 6.0 ppb (6) 0.55 ppb (7) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 15, 2021, 7 p.m. 41.2 ppb (39) 22.8 ppb (22) N/A 18.0 ppb (17) N/A N/A 5.0 ppb (5) 0.58 ppb (7) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 15, 2021, 6 p.m. 63.2 ppb (61) 39.3 ppb (38) N/A 24.0 ppb (23) N/A N/A 2.0 ppb (2) 0.78 ppb (10) N/A 16.0 μg/m3 (60) 61.0
 
Jan. 15, 2021, 5 p.m. 95.6 ppb (96) 71.1 ppb (70) N/A 25.0 ppb (24) N/A N/A 1.0 ppb (1) 1.1 ppb (13) N/A 21.0 μg/m3 (70) 96.0
 
Jan. 15, 2021, 4 p.m. 68.6 ppb (67) 50.0 ppb (48) N/A 19.0 ppb (18) N/A N/A 1.0 ppb (1) 1.04 ppb (12) N/A 11.0 μg/m3 (46) 67.0
 
Jan. 15, 2021, 3 p.m. 89.5 ppb (89) 72.3 ppb (71) N/A 17.0 ppb (17) N/A N/A 0.0 ppb (0) 1.27 ppb (15) N/A 10.0 μg/m3 (42) 89.0
 
Jan. 15, 2021, 2 p.m. 45.4 ppb (43) 33.0 ppb (32) N/A 12.0 ppb (12) N/A N/A 0.0 ppb (0) 0.89 ppb (11) N/A 6.0 μg/m3 (25) 43.0
 
Jan. 15, 2021, 1 p.m. 32.0 ppb (31) 19.3 ppb (19) N/A 13.0 ppb (13) N/A N/A 0.0 ppb (0) 0.7 ppb (8) N/A 5.0 μg/m3 (21) 31.0
 
Jan. 15, 2021, noon 27.2 ppb (26) 13.4 ppb (13) N/A 14.0 ppb (14) N/A N/A 0.0 ppb (0) 0.59 ppb (7) N/A 4.0 μg/m3 (17) 26.0
 
Jan. 15, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
Jan. 15, 2021, 10 a.m. 20.2 ppb (20) 8.2 ppb (8) N/A 12.0 ppb (12) N/A N/A 1.0 ppb (1) 0.49 ppb (6) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 15, 2021, 9 a.m. 47.1 ppb (45) 31.9 ppb (31) N/A 15.0 ppb (15) N/A N/A 0.0 ppb (0) 0.91 ppb (11) N/A 10.0 μg/m3 (42) 45.0
 
Jan. 15, 2021, 8 a.m. 46.6 ppb (44) 30.7 ppb (29) N/A 16.0 ppb (16) N/A N/A 0.0 ppb (0) 0.93 ppb (11) N/A 8.0 μg/m3 (34) 44.0
 
Jan. 15, 2021, 7 a.m. 12.2 ppb (12) 2.8 ppb (3) N/A 9.0 ppb (9) N/A N/A 5.0 ppb (5) 0.42 ppb (5) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 15, 2021, 6 a.m. 16.0 ppb (16) 4.9 ppb (5) N/A 11.0 ppb (11) N/A N/A 4.0 ppb (4) 0.47 ppb (6) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2021, 5 a.m. 37.9 ppb (36) 20.5 ppb (20) N/A 17.0 ppb (17) N/A N/A 1.0 ppb (1) 0.67 ppb (8) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 15, 2021, 4 a.m. 47.3 ppb (45) 26.0 ppb (25) N/A 21.0 ppb (20) N/A N/A 0.0 ppb (0) 0.75 ppb (10) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 15, 2021, 3 a.m. 34.3 ppb (33) 13.5 ppb (13) N/A 21.0 ppb (20) N/A N/A 2.0 ppb (2) 0.81 ppb (10) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 15, 2021, 2 a.m. 36.3 ppb (35) 10.3 ppb (10) N/A 26.0 ppb (25) N/A N/A 2.0 ppb (2) 0.71 ppb (8) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 15, 2021, 1 a.m. 39.5 ppb (38) 11.5 ppb (11) N/A 28.0 ppb (27) N/A N/A 1.0 ppb (1) 0.64 ppb (7) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 15, 2021, midnight 19.4 ppb (19) 5.0 ppb (5) N/A 14.0 ppb (14) N/A N/A 17.0 ppb (16) 0.45 ppb (6) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 14, 2021, 11 p.m. 7.5 ppb (8) 1.9 ppb (2) N/A 6.0 ppb (6) N/A N/A 27.0 ppb (25) 0.32 ppb (4) N/A 5.0 μg/m3 (21) 25.0
 
Jan. 14, 2021, 10 p.m. 32.0 ppb (31) 13.9 ppb (14) N/A 18.0 ppb (17) N/A N/A 10.0 ppb (10) 0.5 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 14, 2021, 9 p.m. 22.2 ppb (21) 8.7 ppb (9) N/A 14.0 ppb (14) N/A N/A 14.0 ppb (13) 0.41 ppb (5) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 14, 2021, 8 p.m. 5.6 ppb (6) 1.5 ppb (2) N/A 4.0 ppb (4) N/A N/A 25.0 ppb (24) 0.33 ppb (4) N/A 3.0 μg/m3 (13) 24.0
 
Jan. 14, 2021, 7 p.m. 8.8 ppb (9) 2.6 ppb (3) N/A 6.0 ppb (6) N/A N/A 21.0 ppb (20) 0.34 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 14, 2021, 6 p.m. 70.3 ppb (69) 43.5 ppb (42) N/A 27.0 ppb (26) N/A N/A 3.0 ppb (3) 0.77 ppb (10) N/A 19.0 μg/m3 (66) 69.0
 
Jan. 14, 2021, 5 p.m. 74.3 ppb (73) 50.1 ppb (48) N/A 24.0 ppb (23) N/A N/A 2.0 ppb (2) 0.96 ppb (12) N/A 23.0 μg/m3 (74) 74.0