ID: 1892

AQSQID: 060010011

Site Name: Oakland West

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

Updated: Jan. 22, 2021, 6:32 a.m.

Location: Oakland (Ralph Bunche), CA

Reporting: True, Located: True

Current AQI: 25.0

Oakland (Ralph Bunche) CA, US: 37.8148, -122.282402

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 22, 2021, 5 a.m. 15.0 ppb (15) 1.1 ppb (2) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 18.0 ppb (17) 0.35 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 22, 2021, 4 a.m. 36.5 ppb (35) 7.1 ppb (7) N/A 29.0 ppb (28) N/A 0.0 ppb (0) 3.0 ppb (3) 0.64 ppb (7) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 22, 2021, 3 a.m. 24.0 ppb (23) 1.7 ppb (2) N/A 22.0 ppb (21) N/A 0.0 ppb (0) 10.0 ppb (10) 0.48 ppb (6) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 22, 2021, 2 a.m. 15.0 ppb (15) 0.5 ppb (1) N/A 15.0 ppb (15) N/A 0.0 ppb (0) 19.0 ppb (18) 0.37 ppb (5) N/A 4.0 μg/m3 (17) 18.0
 
Jan. 22, 2021, 1 a.m. 22.5 ppb (22) 2.2 ppb (3) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 14.0 ppb (13) 0.39 ppb (5) N/A 5.0 μg/m3 (21) 22.0
 
Jan. 22, 2021, midnight 21.2 ppb (20) 4.2 ppb (4) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 18.0 ppb (17) 0.36 ppb (5) N/A 7.0 μg/m3 (30) 30.0
 
Jan. 21, 2021, 11 p.m. 18.7 ppb (18) 4.3 ppb (5) N/A 14.0 ppb (14) N/A 1.0 ppb (2) 22.0 ppb (21) 0.34 ppb (4) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 21, 2021, 10 p.m. 17.4 ppb (17) 3.9 ppb (4) N/A 14.0 ppb (14) N/A 1.0 ppb (2) 23.0 ppb (22) 0.35 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
Jan. 21, 2021, 9 p.m. 16.2 ppb (16) 4.6 ppb (5) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 23.0 ppb (22) 0.34 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
Jan. 21, 2021, 8 p.m. 27.7 ppb (27) 10.8 ppb (11) N/A 17.0 ppb (17) N/A 1.0 ppb (2) 17.0 ppb (16) 0.4 ppb (5) N/A 14.0 μg/m3 (55) 55.0
 
Jan. 21, 2021, 7 p.m. 35.0 ppb (34) 16.2 ppb (16) N/A 19.0 ppb (18) N/A 1.0 ppb (2) 12.0 ppb (12) 0.39 ppb (5) N/A N/A 34.0
 
Jan. 21, 2021, 6 p.m. 66.3 ppb (65) 37.4 ppb (36) N/A 29.0 ppb (28) N/A 1.0 ppb (2) 6.0 ppb (6) 0.57 ppb (7) N/A 17.0 μg/m3 (62) 65.0
 
Jan. 21, 2021, 5 p.m. 77.0 ppb (76) 46.1 ppb (44) N/A 31.0 ppb (30) N/A 1.0 ppb (2) 4.0 ppb (4) 0.72 ppb (8) N/A 17.0 μg/m3 (62) 76.0
 
Jan. 21, 2021, 4 p.m. 114.1 ppb (104) 80.7 ppb (80) N/A 33.0 ppb (32) N/A 1.0 ppb (2) 2.0 ppb (2) 1.4 ppb (16) N/A 14.0 μg/m3 (55) 104.0
 
Jan. 21, 2021, 3 p.m. 144.1 ppb (110) 112.8 ppb (104) N/A 31.0 ppb (30) N/A 1.0 ppb (2) 1.0 ppb (1) 1.82 ppb (21) N/A 10.0 μg/m3 (42) 110.0
 
Jan. 21, 2021, 2 p.m. 104.4 ppb (102) 77.4 ppb (76) N/A 27.0 ppb (26) N/A 1.0 ppb (2) 1.0 ppb (1) 1.53 ppb (18) N/A 10.0 μg/m3 (42) 102.0
 
Jan. 21, 2021, 1 p.m. 79.0 ppb (78) 54.0 ppb (51) N/A 25.0 ppb (24) N/A 1.0 ppb (2) 1.0 ppb (1) 1.05 ppb (13) N/A 8.0 μg/m3 (34) 78.0
 
Jan. 21, 2021, noon 74.9 ppb (74) 49.6 ppb (47) N/A 25.0 ppb (24) N/A N/A 1.0 ppb (1) 0.95 ppb (11) N/A 8.0 μg/m3 (34) 74.0
 
Jan. 21, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (58) 58.0
 
Jan. 21, 2021, 10 a.m. 92.6 ppb (93) 68.5 ppb (67) N/A 24.0 ppb (23) N/A 1.0 ppb (2) 1.0 ppb (1) 1.38 ppb (16) N/A 18.0 μg/m3 (64) 93.0
 
Jan. 21, 2021, 9 a.m. 106.1 ppb (102) 81.2 ppb (80) N/A 25.0 ppb (24) N/A 1.0 ppb (2) 1.0 ppb (1) 1.52 ppb (18) N/A 26.0 μg/m3 (81) 102.0
 
Jan. 21, 2021, 8 a.m. 106.1 ppb (102) 79.5 ppb (79) N/A 27.0 ppb (26) N/A 1.0 ppb (2) 1.0 ppb (1) 1.6 ppb (19) N/A 29.0 μg/m3 (87) 102.0
 
Jan. 21, 2021, 7 a.m. 92.3 ppb (92) 65.9 ppb (64) N/A 26.0 ppb (25) N/A 1.0 ppb (2) 1.0 ppb (1) 1.51 ppb (18) N/A 48.0 μg/m3 (132) 132.0
 
Jan. 21, 2021, 6 a.m. 69.2 ppb (68) 40.1 ppb (38) N/A 29.0 ppb (28) N/A 1.0 ppb (2) 1.0 ppb (1) 1.15 ppb (13) N/A 36.0 μg/m3 (103) 103.0
 
Jan. 21, 2021, 5 a.m. 64.6 ppb (63) 32.2 ppb (31) N/A 32.0 ppb (31) N/A 1.0 ppb (2) 1.0 ppb (1) 1.22 ppb (14) N/A 19.0 μg/m3 (66) 66.0
 
Jan. 21, 2021, 4 a.m. 49.7 ppb (47) 15.8 ppb (15) N/A 34.0 ppb (33) N/A 1.0 ppb (2) 1.0 ppb (1) 0.82 ppb (10) N/A 11.0 μg/m3 (46) 47.0
 
Jan. 21, 2021, 3 a.m. 31.5 ppb (30) 2.8 ppb (3) N/A 29.0 ppb (28) N/A 0.0 ppb (0) 8.0 ppb (8) 0.53 ppb (6) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 21, 2021, 2 a.m. 31.9 ppb (31) 2.7 ppb (3) N/A 29.0 ppb (28) N/A 0.0 ppb (0) 9.0 ppb (9) 0.48 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 21, 2021, 1 a.m. 39.3 ppb (38) 5.7 ppb (6) N/A 34.0 ppb (33) N/A 1.0 ppb (2) 8.0 ppb (8) 0.37 ppb (5) N/A 14.0 μg/m3 (55) 55.0
 
Jan. 21, 2021, midnight 28.8 ppb (28) 5.4 ppb (6) N/A 23.0 ppb (22) N/A 1.0 ppb (2) 17.0 ppb (16) 0.32 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 20, 2021, 11 p.m. 20.1 ppb (19) 4.4 ppb (5) N/A 16.0 ppb (16) N/A 1.0 ppb (2) 23.0 ppb (22) 0.26 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
Jan. 20, 2021, 10 p.m. 13.3 ppb (13) 3.1 ppb (3) N/A 10.0 ppb (10) N/A 2.0 ppb (3) 27.0 ppb (25) 0.23 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 20, 2021, 9 p.m. 19.3 ppb (19) 5.4 ppb (6) N/A 14.0 ppb (14) N/A 3.0 ppb (5) 24.0 ppb (23) 0.25 ppb (3) N/A 14.0 μg/m3 (55) 55.0
 
Jan. 20, 2021, 8 p.m. 28.0 ppb (27) 10.7 ppb (11) N/A 17.0 ppb (17) N/A 2.0 ppb (3) 19.0 ppb (18) 0.27 ppb (4) N/A 14.0 μg/m3 (55) 55.0
 
Jan. 20, 2021, 7 p.m. 80.1 ppb (79) 45.5 ppb (43) N/A 35.0 ppb (34) N/A 2.0 ppb (3) 8.0 ppb (8) 0.41 ppb (5) N/A 24.0 μg/m3 (77) 79.0
 
Jan. 20, 2021, 6 p.m. 94.1 ppb (94) 56.2 ppb (54) N/A 38.0 ppb (36) N/A 2.0 ppb (3) 6.0 ppb (6) 0.59 ppb (7) N/A 18.0 μg/m3 (64) 94.0
 
Jan. 20, 2021, 5 p.m. 105.1 ppb (102) 65.9 ppb (64) N/A 39.0 ppb (37) N/A 2.0 ppb (3) 4.0 ppb (4) 0.78 ppb (10) N/A 17.0 μg/m3 (62) 102.0
 
Jan. 20, 2021, 4 p.m. 169.5 ppb (114) 130.5 ppb (107) N/A 39.0 ppb (37) N/A 1.0 ppb (2) 2.0 ppb (2) 1.56 ppb (19) N/A 23.0 μg/m3 (74) 114.0
 
Jan. 20, 2021, 3 p.m. 124.7 ppb (106) 93.1 ppb (93) N/A 32.0 ppb (31) N/A 1.0 ppb (2) 1.0 ppb (1) 1.53 ppb (18) N/A 19.0 μg/m3 (66) 106.0
 
Jan. 20, 2021, 2 p.m. 95.4 ppb (96) 64.8 ppb (63) N/A 31.0 ppb (30) N/A 1.0 ppb (2) 1.0 ppb (1) 0.98 ppb (12) N/A 15.0 μg/m3 (58) 96.0
 
Jan. 20, 2021, 1 p.m. 62.8 ppb (61) 33.5 ppb (32) N/A 29.0 ppb (28) N/A 1.0 ppb (2) 1.0 ppb (1) 0.67 ppb (8) N/A 10.0 μg/m3 (42) 61.0
 
Jan. 20, 2021, noon 38.3 ppb (37) 8.5 ppb (9) N/A 30.0 ppb (29) N/A N/A 1.0 ppb (1) 0.46 ppb (6) N/A 8.0 μg/m3 (34) 37.0
 
Jan. 20, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 20, 2021, 10 a.m. 31.2 ppb (30) 4.3 ppb (5) N/A 27.0 ppb (26) N/A 1.0 ppb (2) 4.0 ppb (4) 0.41 ppb (5) N/A 16.0 μg/m3 (60) 60.0
 
Jan. 20, 2021, 9 a.m. 22.0 ppb (21) 1.0 ppb (1) N/A 21.0 ppb (20) N/A 1.0 ppb (2) 9.0 ppb (9) 0.28 ppb (4) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 20, 2021, 8 a.m. 13.4 ppb (13) 0.1 ppb (1) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 20.0 ppb (19) 0.22 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 20, 2021, 7 a.m. 7.3 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 29.0 ppb (27) 0.17 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Jan. 20, 2021, 6 a.m. 9.4 ppb (9) 0.0 ppb (0) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 27.0 ppb (25) 0.19 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 20, 2021, 5 a.m. 15.6 ppb (15) 0.6 ppb (1) N/A 15.0 ppb (15) N/A 1.0 ppb (2) 21.0 ppb (20) 0.22 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 20, 2021, 4 a.m. 10.8 ppb (11) 0.4 ppb (1) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 26.0 ppb (25) 0.22 ppb (3) N/A 3.0 μg/m3 (13) 25.0
 
Jan. 20, 2021, 3 a.m. 11.9 ppb (12) 0.8 ppb (1) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 27.0 ppb (25) 0.21 ppb (3) N/A 2.0 μg/m3 (9) 25.0
 
Jan. 20, 2021, 2 a.m. 5.0 ppb (5) 0.3 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 33.0 ppb (31) 0.17 ppb (3) N/A 0.0 μg/m3 (0) 31.0
 
Jan. 20, 2021, 1 a.m. 4.9 ppb (5) 0.3 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 34.0 ppb (32) 0.18 ppb (3) N/A -2.0 μg/m3 (0) 32.0
 
Jan. 20, 2021, midnight 3.5 ppb (4) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 36.0 ppb (34) 0.16 ppb (3) N/A -2.0 μg/m3 (0) 34.0
 
Jan. 19, 2021, 11 p.m. 2.1 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (36) 0.14 ppb (2) N/A 1.0 μg/m3 (5) 36.0
 
Jan. 19, 2021, 10 p.m. 2.2 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (35) 0.14 ppb (2) N/A 2.0 μg/m3 (9) 35.0
 
Jan. 19, 2021, 9 p.m. 1.8 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (34) 0.14 ppb (2) N/A 1.0 μg/m3 (5) 34.0
 
Jan. 19, 2021, 8 p.m. 2.0 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (34) 0.13 ppb (2) N/A 1.0 μg/m3 (5) 34.0
 
Jan. 19, 2021, 7 p.m. 1.8 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (33) 0.13 ppb (2) N/A -2.0 μg/m3 (0) 33.0
 
Jan. 19, 2021, 6 p.m. 2.5 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (32) 0.14 ppb (2) N/A -2.0 μg/m3 (0) 32.0
 
Jan. 19, 2021, 5 p.m. 2.5 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (32) 0.13 ppb (2) N/A 0.0 μg/m3 (0) 32.0
 
Jan. 19, 2021, 4 p.m. 2.9 ppb (3) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (31) 0.14 ppb (2) N/A -1.0 μg/m3 (0) 31.0
 
Jan. 19, 2021, 3 p.m. 2.4 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (32) 0.12 ppb (2) N/A 0.0 μg/m3 (0) 32.0
 
Jan. 19, 2021, 2 p.m. 1.5 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (33) 0.13 ppb (2) N/A -1.0 μg/m3 (0) 33.0
 
Jan. 19, 2021, 1 p.m. 1.2 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 36.0 ppb (34) 0.12 ppb (2) N/A -3.0 μg/m3 (0) 34.0
 
Jan. 19, 2021, noon 0.7 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (35) 0.12 ppb (2) N/A -2.0 μg/m3 (0) 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. 0.4 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 36.0 ppb (34) 0.12 ppb (2) N/A 0.0 μg/m3 (0) 34.0
 
Jan. 19, 2021, 9 a.m. 0.2 ppb (1) -0.1 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 38.0 ppb (36) 0.13 ppb (2) N/A -3.0 μg/m3 (0) 36.0
 
Jan. 19, 2021, 8 a.m. 0.7 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (37) 0.13 ppb (2) N/A -1.0 μg/m3 (0) 37.0
 
Jan. 19, 2021, 7 a.m. 2.6 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 36.0 ppb (34) 0.15 ppb (2) N/A 0.0 μg/m3 (0) 34.0
 
Jan. 19, 2021, 6 a.m. 1.0 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (37) 0.13 ppb (2) N/A -1.0 μg/m3 (0) 37.0
 
Jan. 19, 2021, 5 a.m. 4.9 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 35.0 ppb (33) 0.17 ppb (3) N/A 0.0 μg/m3 (0) 33.0
 
Jan. 19, 2021, 4 a.m. 6.9 ppb (7) 0.2 ppb (1) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 32.0 ppb (30) 0.2 ppb (3) N/A 1.0 μg/m3 (5) 30.0
 
Jan. 19, 2021, 3 a.m. 7.9 ppb (8) 0.3 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 31.0 ppb (29) 0.25 ppb (3) N/A 3.0 μg/m3 (13) 29.0
 
Jan. 19, 2021, 2 a.m. 6.7 ppb (7) 0.2 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 34.0 ppb (32) 0.2 ppb (3) N/A 4.0 μg/m3 (17) 32.0
 
Jan. 19, 2021, 1 a.m. 6.0 ppb (6) 0.4 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 35.0 ppb (33) 0.21 ppb (3) N/A -2.0 μg/m3 (0) 33.0
 
Jan. 19, 2021, midnight 3.4 ppb (4) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 38.0 ppb (36) 0.18 ppb (3) N/A -1.0 μg/m3 (0) 36.0
 
Jan. 18, 2021, 11 p.m. 3.4 ppb (4) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 39.0 ppb (37) 0.18 ppb (3) N/A 2.0 μg/m3 (9) 37.0
 
Jan. 18, 2021, 10 p.m. 6.2 ppb (6) 0.9 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 37.0 ppb (35) 0.21 ppb (3) N/A 1.0 μg/m3 (5) 35.0
 
Jan. 18, 2021, 9 p.m. 7.4 ppb (7) 1.1 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 36.0 ppb (34) 0.21 ppb (3) N/A 0.0 μg/m3 (0) 34.0
 
Jan. 18, 2021, 8 p.m. 10.3 ppb (10) 2.0 ppb (2) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 34.0 ppb (32) 0.22 ppb (3) N/A -2.0 μg/m3 (0) 32.0
 
Jan. 18, 2021, 7 p.m. 10.0 ppb (10) 1.9 ppb (2) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 33.0 ppb (31) 0.23 ppb (3) N/A -3.0 μg/m3 (0) 31.0
 
Jan. 18, 2021, 6 p.m. 11.5 ppb (11) 2.3 ppb (3) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 30.0 ppb (28) 0.23 ppb (3) N/A 2.0 μg/m3 (9) 28.0
 
Jan. 18, 2021, 5 p.m. 32.6 ppb (31) 12.3 ppb (12) N/A 20.0 ppb (19) N/A 1.0 ppb (2) 17.0 ppb (16) 0.39 ppb (5) N/A 4.0 μg/m3 (17) 31.0
 
Jan. 18, 2021, 4 p.m. 125.4 ppb (106) 96.7 ppb (97) N/A 29.0 ppb (28) N/A 1.0 ppb (2) 1.0 ppb (1) 1.06 ppb (13) N/A 21.0 μg/m3 (70) 106.0
 
Jan. 18, 2021, 3 p.m. 81.7 ppb (81) 64.2 ppb (62) N/A 18.0 ppb (17) N/A 1.0 ppb (2) 1.0 ppb (1) 0.94 ppb (11) N/A 17.0 μg/m3 (62) 81.0
 
Jan. 18, 2021, 2 p.m. 50.0 ppb (48) 32.9 ppb (32) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 1.0 ppb (1) 0.71 ppb (8) N/A 20.0 μg/m3 (68) 68.0
 
Jan. 18, 2021, 1 p.m. 35.4 ppb (34) 16.6 ppb (16) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 1.0 ppb (1) 0.56 ppb (7) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 18, 2021, noon 28.6 ppb (27) 10.2 ppb (10) N/A 18.0 ppb (17) N/A N/A 1.0 ppb (1) 0.45 ppb (6) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 18, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 18, 2021, 10 a.m. 24.1 ppb (23) 4.2 ppb (4) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 1.0 ppb (1) 0.52 ppb (6) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 18, 2021, 9 a.m. 24.7 ppb (24) 5.3 ppb (5) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 1.0 ppb (1) 0.51 ppb (6) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 18, 2021, 8 a.m. 27.0 ppb (26) 6.0 ppb (6) N/A 21.0 ppb (20) N/A 0.0 ppb (0) 1.0 ppb (1) 0.58 ppb (7) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 18, 2021, 7 a.m. 23.8 ppb (23) 3.8 ppb (4) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 2.0 ppb (2) 0.53 ppb (6) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 18, 2021, 6 a.m. 21.5 ppb (21) 2.8 ppb (3) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 4.0 ppb (4) 0.51 ppb (6) N/A 16.0 μg/m3 (60) 60.0
 
Jan. 18, 2021, 5 a.m. 23.9 ppb (23) 3.1 ppb (3) N/A 21.0 ppb (20) N/A 0.0 ppb (0) 5.0 ppb (5) 0.47 ppb (6) N/A 16.0 μg/m3 (60) 60.0
 
Jan. 18, 2021, 4 a.m. 27.2 ppb (26) 3.0 ppb (3) N/A 24.0 ppb (23) N/A 0.0 ppb (0) 4.0 ppb (4) 0.58 ppb (7) N/A 22.0 μg/m3 (72) 72.0
 
Jan. 18, 2021, 3 a.m. 19.8 ppb (19) 0.6 ppb (1) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 12.0 ppb (12) 0.51 ppb (6) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 18, 2021, 2 a.m. 16.8 ppb (16) 0.6 ppb (1) N/A 16.0 ppb (16) N/A 1.0 ppb (2) 17.0 ppb (16) 0.46 ppb (6) N/A 8.0 μg/m3 (34) 34.0
 
Jan. 18, 2021, 1 a.m. 27.3 ppb (26) 2.4 ppb (3) N/A 25.0 ppb (24) N/A 1.0 ppb (2) 12.0 ppb (12) 0.66 ppb (8) N/A 8.0 μg/m3 (34) 34.0
 
Jan. 18, 2021, midnight 30.2 ppb (29) 5.5 ppb (6) N/A 25.0 ppb (24) N/A 2.0 ppb (3) 14.0 ppb (13) 0.52 ppb (6) N/A 6.0 μg/m3 (25) 29.0
 
Jan. 17, 2021, 11 p.m. 25.3 ppb (24) 6.6 ppb (7) N/A 19.0 ppb (18) N/A 1.0 ppb (2) 18.0 ppb (17) 0.59 ppb (7) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2021, 10 p.m. 26.4 ppb (25) 8.3 ppb (8) N/A 18.0 ppb (17) N/A 1.0 ppb (2) 17.0 ppb (16) 0.41 ppb (5) N/A 1.0 μg/m3 (5) 25.0
 
Jan. 17, 2021, 9 p.m. 22.1 ppb (21) 7.4 ppb (7) N/A 15.0 ppb (15) N/A 1.0 ppb (2) 17.0 ppb (16) 0.41 ppb (5) N/A 2.0 μg/m3 (9) 21.0
 
Jan. 17, 2021, 8 p.m. 15.8 ppb (15) 5.1 ppb (5) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 20.0 ppb (19) 0.39 ppb (5) N/A 3.0 μg/m3 (13) 19.0
 
Jan. 17, 2021, 7 p.m. 11.5 ppb (11) 3.5 ppb (4) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 19.0 ppb (18) 0.37 ppb (5) N/A 3.0 μg/m3 (13) 18.0
 
Jan. 17, 2021, 6 p.m. 16.8 ppb (16) 6.3 ppb (6) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 13.0 ppb (13) 0.36 ppb (5) N/A 3.0 μg/m3 (13) 16.0
 
Jan. 17, 2021, 5 p.m. 22.7 ppb (22) 9.3 ppb (9) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 7.0 ppb (7) 0.42 ppb (5) N/A 7.0 μg/m3 (30) 30.0
 
Jan. 17, 2021, 4 p.m. 48.6 ppb (46) 31.6 ppb (30) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 2.0 ppb (2) 0.68 ppb (8) N/A 6.0 μg/m3 (25) 46.0
 
Jan. 17, 2021, 3 p.m. 39.8 ppb (38) 24.8 ppb (24) N/A 15.0 ppb (15) N/A 0.0 ppb (0) 1.0 ppb (1) 0.62 ppb (7) N/A 6.0 μg/m3 (25) 38.0
 
Jan. 17, 2021, 2 p.m. 27.0 ppb (26) 11.1 ppb (11) N/A 16.0 ppb (16) N/A 0.0 ppb (0) 1.0 ppb (1) 0.39 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 17, 2021, 1 p.m. 28.6 ppb (27) 14.1 ppb (14) N/A 15.0 ppb (15) N/A 0.0 ppb (0) 1.0 ppb (1) 0.51 ppb (6) N/A 8.0 μg/m3 (34) 34.0
 
Jan. 17, 2021, noon 52.9 ppb (50) 40.0 ppb (38) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 1.0 ppb (1) 0.98 ppb (12) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 17, 2021, 11 a.m. 52.8 ppb (50) 39.8 ppb (38) N/A 13.0 ppb (13) N/A N/A 1.0 ppb (1) 0.99 ppb (12) N/A 14.0 μg/m3 (55) 55.0
 
Jan. 17, 2021, 10 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
 
Jan. 17, 2021, 9 a.m. 49.2 ppb (47) 35.2 ppb (34) N/A 14.0 ppb (14) N/A 1.0 ppb (2) 1.0 ppb (1) 1.27 ppb (15) N/A 19.0 μg/m3 (66) 66.0
 
Jan. 17, 2021, 8 a.m. 42.5 ppb (41) 27.8 ppb (27) N/A 15.0 ppb (15) N/A 1.0 ppb (2) 1.0 ppb (1) 1.21 ppb (14) N/A 19.0 μg/m3 (66) 66.0
 
Jan. 17, 2021, 7 a.m. 31.5 ppb (30) 15.2 ppb (15) N/A 16.0 ppb (16) N/A 0.0 ppb (0) 1.0 ppb (1) 0.84 ppb (10) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 17, 2021, 6 a.m. 25.2 ppb (24) 9.1 ppb (9) N/A 16.0 ppb (16) N/A 0.0 ppb (0) 1.0 ppb (1) 0.67 ppb (8) N/A 23.0 μg/m3 (74) 74.0
 
Jan. 17, 2021, 5 a.m. 15.4 ppb (15) 1.7 ppb (2) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 5.0 ppb (5) 0.52 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 17, 2021, 4 a.m. 12.6 ppb (12) 1.0 ppb (1) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 7.0 ppb (7) 0.48 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 17, 2021, 3 a.m. 13.3 ppb (13) 1.0 ppb (1) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 8.0 ppb (8) 0.51 ppb (6) N/A 7.0 μg/m3 (30) 30.0
 
Jan. 17, 2021, 2 a.m. 13.9 ppb (14) 1.5 ppb (2) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 8.0 ppb (8) 0.49 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 17, 2021, 1 a.m. 13.7 ppb (13) 2.1 ppb (2) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 8.0 ppb (8) 0.44 ppb (5) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2021, midnight 16.0 ppb (16) 4.6 ppb (5) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 9.0 ppb (9) 0.44 ppb (5) N/A 8.0 μg/m3 (34) 34.0
 
Jan. 16, 2021, 11 p.m. 15.7 ppb (15) 4.5 ppb (5) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 16.0 ppb (15) 0.45 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 16, 2021, 10 p.m. 13.4 ppb (13) 3.3 ppb (4) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 22.0 ppb (21) 0.41 ppb (5) N/A 16.0 μg/m3 (60) 60.0
 
Jan. 16, 2021, 9 p.m. 18.1 ppb (18) 5.8 ppb (6) N/A 12.0 ppb (12) N/A 1.0 ppb (2) 18.0 ppb (17) 0.45 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 16, 2021, 8 p.m. 22.7 ppb (22) 8.5 ppb (9) N/A 14.0 ppb (14) N/A 2.0 ppb (3) 16.0 ppb (15) 0.47 ppb (6) N/A 22.0 μg/m3 (72) 72.0
 
Jan. 16, 2021, 7 p.m. 24.4 ppb (24) 9.7 ppb (10) N/A 15.0 ppb (15) N/A 2.0 ppb (3) 14.0 ppb (13) 0.47 ppb (6) N/A 20.0 μg/m3 (68) 68.0
 
Jan. 16, 2021, 6 p.m. 30.6 ppb (29) 14.0 ppb (14) N/A 17.0 ppb (17) N/A 1.0 ppb (2) 10.0 ppb (10) 0.58 ppb (7) N/A 14.0 μg/m3 (55) 55.0
 
Jan. 16, 2021, 5 p.m. 36.2 ppb (35) 19.0 ppb (18) N/A 17.0 ppb (17) N/A 1.0 ppb (2) 6.0 ppb (6) 0.59 ppb (7) N/A 16.0 μg/m3 (60) 60.0
 
Jan. 16, 2021, 4 p.m. 76.6 ppb (76) 55.0 ppb (53) N/A 22.0 ppb (21) N/A 1.0 ppb (2) 2.0 ppb (2) 1.23 ppb (14) N/A 27.0 μg/m3 (83) 83.0
 
Jan. 16, 2021, 3 p.m. 95.1 ppb (95) 77.7 ppb (77) N/A 17.0 ppb (17) N/A 1.0 ppb (2) 1.0 ppb (1) 1.47 ppb (18) N/A 25.0 μg/m3 (79) 95.0
 
Jan. 16, 2021, 2 p.m. 86.5 ppb (86) 70.7 ppb (69) N/A 16.0 ppb (16) N/A 1.0 ppb (2) 1.0 ppb (1) 1.32 ppb (15) N/A 25.0 μg/m3 (79) 86.0
 
Jan. 16, 2021, 1 p.m. 81.0 ppb (80) 63.7 ppb (62) N/A 17.0 ppb (17) N/A 1.0 ppb (2) 1.0 ppb (1) 1.3 ppb (15) N/A 28.0 μg/m3 (85) 85.0
 
Jan. 16, 2021, noon 66.5 ppb (65) 49.4 ppb (47) N/A 17.0 ppb (17) N/A N/A 1.0 ppb (1) 1.13 ppb (13) N/A 24.0 μg/m3 (77) 77.0
 
Jan. 16, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (79) 79.0
 
Jan. 16, 2021, 10 a.m. 33.0 ppb (32) 13.1 ppb (13) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 1.0 ppb (1) 0.69 ppb (8) N/A 20.0 μg/m3 (68) 68.0
 
Jan. 16, 2021, 9 a.m. 29.8 ppb (29) 9.2 ppb (9) N/A 21.0 ppb (20) N/A 0.0 ppb (0) 1.0 ppb (1) 0.73 ppb (8) N/A 23.0 μg/m3 (74) 74.0
 
Jan. 16, 2021, 8 a.m. 27.0 ppb (26) 5.7 ppb (6) N/A 21.0 ppb (20) N/A 0.0 ppb (0) 1.0 ppb (1) 0.67 ppb (8) N/A 23.0 μg/m3 (74) 74.0
 
Jan. 16, 2021, 7 a.m. 29.4 ppb (28) 5.5 ppb (6) N/A 24.0 ppb (23) N/A 0.0 ppb (0) 2.0 ppb (2) 0.65 ppb (8) N/A 22.0 μg/m3 (72) 72.0
 
Jan. 16, 2021, 6 a.m. 26.9 ppb (26) 2.6 ppb (3) N/A 24.0 ppb (23) N/A 0.0 ppb (0) 3.0 ppb (3) 0.62 ppb (7) N/A 18.0 μg/m3 (64) 64.0
 
Jan. 16, 2021, 5 a.m. 41.1 ppb (39) 11.7 ppb (12) N/A 29.0 ppb (28) N/A 0.0 ppb (0) 1.0 ppb (1) 0.72 ppb (8) N/A 26.0 μg/m3 (81) 81.0
 
Jan. 16, 2021, 4 a.m. 39.1 ppb (37) 9.1 ppb (9) N/A 30.0 ppb (29) N/A 0.0 ppb (0) 1.0 ppb (1) 0.79 ppb (10) N/A 18.0 μg/m3 (64) 64.0
 
Jan. 16, 2021, 3 a.m. 28.0 ppb (27) 2.2 ppb (3) N/A 26.0 ppb (25) N/A 1.0 ppb (2) 7.0 ppb (7) 0.61 ppb (7) N/A 20.0 μg/m3 (68) 68.0
 
Jan. 16, 2021, 2 a.m. 26.9 ppb (26) 4.3 ppb (5) N/A 23.0 ppb (22) N/A 0.0 ppb (0) 10.0 ppb (10) 0.61 ppb (7) N/A 14.0 μg/m3 (55) 55.0
 
Jan. 16, 2021, 1 a.m. 44.3 ppb (42) 9.3 ppb (9) N/A 35.0 ppb (34) N/A 1.0 ppb (2) 2.0 ppb (2) 0.75 ppb (10) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 16, 2021, midnight 43.9 ppb (42) 11.4 ppb (11) N/A 33.0 ppb (32) N/A 2.0 ppb (3) 7.0 ppb (7) 0.66 ppb (8) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 15, 2021, 11 p.m. 47.7 ppb (45) 18.6 ppb (18) N/A 29.0 ppb (28) N/A 3.0 ppb (5) 10.0 ppb (10) 0.51 ppb (6) N/A 23.0 μg/m3 (74) 74.0
 
Jan. 15, 2021, 10 p.m. 31.9 ppb (31) 10.9 ppb (11) N/A 21.0 ppb (20) N/A 2.0 ppb (3) 13.0 ppb (13) 0.49 ppb (6) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 15, 2021, 9 p.m. 30.4 ppb (29) 12.4 ppb (12) N/A 18.0 ppb (17) N/A 2.0 ppb (3) 12.0 ppb (12) 0.47 ppb (6) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 15, 2021, 8 p.m. 37.7 ppb (36) 19.2 ppb (19) N/A 19.0 ppb (18) N/A 1.0 ppb (2) 9.0 ppb (9) 0.46 ppb (6) N/A 17.0 μg/m3 (62) 62.0
 
Jan. 15, 2021, 7 p.m. 44.8 ppb (43) 23.9 ppb (23) N/A 21.0 ppb (20) N/A 1.0 ppb (2) 7.0 ppb (7) 0.54 ppb (6) N/A 14.0 μg/m3 (55) 55.0
 
Jan. 15, 2021, 6 p.m. 44.5 ppb (42) 25.3 ppb (24) N/A 19.0 ppb (18) N/A 1.0 ppb (2) 6.0 ppb (6) 0.61 ppb (7) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 15, 2021, 5 p.m. 46.9 ppb (45) 26.1 ppb (25) N/A 21.0 ppb (20) N/A 0.0 ppb (0) 4.0 ppb (4) 0.7 ppb (8) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 15, 2021, 4 p.m. 45.3 ppb (43) 30.1 ppb (29) N/A 15.0 ppb (15) N/A 0.0 ppb (0) 2.0 ppb (2) 0.67 ppb (8) N/A 13.0 μg/m3 (53) 53.0
 
Jan. 15, 2021, 3 p.m. 85.7 ppb (85) 68.1 ppb (67) N/A 18.0 ppb (17) N/A 1.0 ppb (2) 1.0 ppb (1) 0.97 ppb (12) N/A 10.0 μg/m3 (42) 85.0
 
Jan. 15, 2021, 2 p.m. 89.1 ppb (89) 74.3 ppb (73) N/A 15.0 ppb (15) N/A 1.0 ppb (2) 1.0 ppb (1) 1.2 ppb (14) N/A 4.0 μg/m3 (17) 89.0
 
Jan. 15, 2021, 1 p.m. 84.2 ppb (84) 71.1 ppb (70) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 1.0 ppb (1) 1.1 ppb (13) N/A 6.0 μg/m3 (25) 84.0
 
Jan. 15, 2021, noon 67.6 ppb (66) 54.9 ppb (52) N/A 13.0 ppb (13) N/A N/A 1.0 ppb (1) 0.92 ppb (11) N/A 9.0 μg/m3 (38) 66.0
 
Jan. 15, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 15, 2021, 10 a.m. 51.9 ppb (49) 37.8 ppb (36) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 1.0 ppb (1) 0.82 ppb (10) N/A 6.0 μg/m3 (25) 49.0
 
Jan. 15, 2021, 9 a.m. 42.8 ppb (41) 28.4 ppb (27) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 1.0 ppb (1) 0.76 ppb (10) N/A 6.0 μg/m3 (25) 41.0
 
Jan. 15, 2021, 8 a.m. 35.7 ppb (34) 18.8 ppb (18) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 1.0 ppb (1) 0.6 ppb (7) N/A 5.0 μg/m3 (21) 34.0
 
Jan. 15, 2021, 7 a.m. 45.0 ppb (43) 27.6 ppb (27) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 1.0 ppb (1) 0.78 ppb (10) N/A 6.0 μg/m3 (25) 43.0
 
Jan. 15, 2021, 6 a.m. 22.3 ppb (22) 7.7 ppb (8) N/A 15.0 ppb (15) N/A 0.0 ppb (0) 2.0 ppb (2) 0.53 ppb (6) N/A 2.0 μg/m3 (9) 22.0