ID: 237

AQSQID: 061010003

Site Name: Yuba City

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

Updated: Jan. 21, 2021, 8:32 p.m.

Location: Yuba City (Almond St), CA

Reporting: True, Located: True

Current AQI: 25.0

Yuba City (Almond St) CA, US: 39.13868, -121.61884

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 21, 2021, 7 p.m. 8.5 ppb (9) 3.0 ppb (3) N/A 6.0 ppb (6) N/A N/A 26.0 ppb (25) N/A 15.5 μg/m3 (15) 5.0 μg/m3 (21) 25.0
 
Jan. 21, 2021, 6 p.m. 17.7 ppb (17) 7.6 ppb (8) N/A 10.0 ppb (10) N/A N/A 17.0 ppb (16) N/A 17.3 μg/m3 (17) 7.0 μg/m3 (30) 30.0
 
Jan. 21, 2021, 5 p.m. 40.7 ppb (39) 23.8 ppb (23) N/A 17.0 ppb (17) N/A N/A 7.0 ppb (7) N/A 26.9 μg/m3 (25) 12.0 μg/m3 (50) 50.0
 
Jan. 21, 2021, 4 p.m. 88.7 ppb (88) 68.3 ppb (67) N/A 20.0 ppb (19) N/A N/A 2.0 ppb (2) N/A 34.0 μg/m3 (32) 18.0 μg/m3 (64) 88.0
 
Jan. 21, 2021, 3 p.m. 121.2 ppb (105) 101.3 ppb (102) N/A 20.0 ppb (19) N/A N/A 2.0 ppb (2) N/A 41.2 μg/m3 (39) 22.0 μg/m3 (72) 105.0
 
Jan. 21, 2021, 2 p.m. 92.7 ppb (93) 75.3 ppb (74) N/A 17.0 ppb (17) N/A N/A 2.0 ppb (2) N/A 35.3 μg/m3 (33) 14.0 μg/m3 (55) 93.0
 
Jan. 21, 2021, 1 p.m. 99.6 ppb (100) 80.4 ppb (80) N/A 19.0 ppb (18) N/A N/A 2.0 ppb (2) N/A 35.8 μg/m3 (34) 17.0 μg/m3 (62) 100.0
 
Jan. 21, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 21.7 μg/m3 (21) 17.0 μg/m3 (62) 62.0
 
Jan. 21, 2021, 11 a.m. 54.4 ppb (52) 36.5 ppb (35) N/A 18.0 ppb (17) N/A N/A 2.0 ppb (2) N/A 22.5 μg/m3 (21) 13.0 μg/m3 (53) 53.0
 
Jan. 21, 2021, 10 a.m. 33.5 ppb (32) 17.9 ppb (17) N/A 16.0 ppb (16) N/A N/A 2.0 ppb (2) N/A 20.7 μg/m3 (20) 13.0 μg/m3 (53) 53.0
 
Jan. 21, 2021, 9 a.m. 51.2 ppb (49) 33.5 ppb (32) N/A 18.0 ppb (17) N/A N/A 2.0 ppb (2) N/A 32.4 μg/m3 (30) 19.0 μg/m3 (66) 66.0
 
Jan. 21, 2021, 8 a.m. 47.0 ppb (45) 28.3 ppb (27) N/A 19.0 ppb (18) N/A N/A 2.0 ppb (2) N/A 33.1 μg/m3 (31) 11.0 μg/m3 (46) 46.0
 
Jan. 21, 2021, 7 a.m. 53.0 ppb (50) 33.1 ppb (32) N/A 20.0 ppb (19) N/A N/A 2.0 ppb (2) N/A 27.8 μg/m3 (26) 17.0 μg/m3 (62) 62.0
 
Jan. 21, 2021, 6 a.m. 42.9 ppb (41) 21.9 ppb (21) N/A 21.0 ppb (20) N/A N/A 3.0 ppb (3) N/A 31.7 μg/m3 (30) 14.0 μg/m3 (55) 55.0
 
Jan. 21, 2021, 5 a.m. 58.8 ppb (57) 37.1 ppb (35) N/A 22.0 ppb (21) N/A N/A 3.0 ppb (3) N/A 47.2 μg/m3 (44) 18.0 μg/m3 (64) 64.0
 
Jan. 21, 2021, 4 a.m. 93.5 ppb (94) 67.8 ppb (66) N/A 26.0 ppb (25) N/A N/A 2.0 ppb (2) N/A 56.5 μg/m3 (52) 20.0 μg/m3 (68) 94.0
 
Jan. 21, 2021, 3 a.m. 83.2 ppb (83) 52.4 ppb (50) N/A 31.0 ppb (30) N/A N/A 4.0 ppb (4) N/A 61.5 μg/m3 (55) 33.0 μg/m3 (95) 95.0
 
Jan. 21, 2021, 2 a.m. 50.6 ppb (48) 20.5 ppb (20) N/A 30.0 ppb (29) N/A N/A 4.0 ppb (4) N/A 35.9 μg/m3 (34) 12.0 μg/m3 (50) 50.0
 
Jan. 21, 2021, 1 a.m. 39.2 ppb (37) 14.0 ppb (14) N/A 25.0 ppb (24) N/A N/A 11.0 ppb (11) N/A 28.6 μg/m3 (27) 3.0 μg/m3 (13) 37.0
 
Jan. 21, 2021, midnight 9.5 ppb (9) 1.8 ppb (2) N/A 8.0 ppb (8) N/A N/A 27.0 ppb (25) N/A 15.1 μg/m3 (14) 3.0 μg/m3 (13) 25.0
 
Jan. 20, 2021, 11 p.m. 5.7 ppb (6) 1.3 ppb (2) N/A 4.0 ppb (4) N/A N/A 31.0 ppb (29) N/A 27.4 μg/m3 (26) 2.0 μg/m3 (9) 29.0
 
Jan. 20, 2021, 10 p.m. 6.3 ppb (6) 1.9 ppb (2) N/A 4.0 ppb (4) N/A N/A 31.0 ppb (29) N/A 15.6 μg/m3 (15) 3.0 μg/m3 (13) 29.0
 
Jan. 20, 2021, 9 p.m. 4.2 ppb (4) 1.2 ppb (2) N/A 3.0 ppb (3) N/A N/A 31.0 ppb (29) N/A 14.7 μg/m3 (14) 4.0 μg/m3 (17) 29.0
 
Jan. 20, 2021, 8 p.m. 6.1 ppb (6) 1.9 ppb (2) N/A 4.0 ppb (4) N/A N/A 28.0 ppb (26) N/A 17.9 μg/m3 (17) 2.0 μg/m3 (9) 26.0
 
Jan. 20, 2021, 7 p.m. 6.1 ppb (6) 1.9 ppb (2) N/A 4.0 ppb (4) N/A N/A 27.0 ppb (25) N/A 16.0 μg/m3 (15) 4.0 μg/m3 (17) 25.0
 
Jan. 20, 2021, 6 p.m. 5.4 ppb (6) 1.8 ppb (2) N/A 4.0 ppb (4) N/A N/A 25.0 ppb (24) N/A 21.2 μg/m3 (20) 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2021, 5 p.m. 8.3 ppb (8) 2.6 ppb (3) N/A 6.0 ppb (6) N/A N/A 23.0 ppb (22) N/A 25.5 μg/m3 (24) 5.0 μg/m3 (21) 24.0
 
Jan. 20, 2021, 4 p.m. 28.0 ppb (27) 10.0 ppb (10) N/A 18.0 ppb (17) N/A N/A 11.0 ppb (11) N/A 35.9 μg/m3 (34) 6.0 μg/m3 (25) 34.0
 
Jan. 20, 2021, 3 p.m. 33.7 ppb (32) 10.3 ppb (10) N/A 23.0 ppb (22) N/A N/A 5.0 ppb (5) N/A 36.7 μg/m3 (34) 6.0 μg/m3 (25) 34.0
 
Jan. 20, 2021, 2 p.m. 15.9 ppb (15) 2.3 ppb (3) N/A 14.0 ppb (14) N/A N/A 14.0 ppb (13) N/A 25.1 μg/m3 (24) 5.0 μg/m3 (21) 24.0
 
Jan. 20, 2021, 1 p.m. 5.4 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 23.0 ppb (22) N/A 32.5 μg/m3 (31) 6.0 μg/m3 (25) 31.0
 
Jan. 20, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 53.1 μg/m3 (50) 11.0 μg/m3 (46) 50.0
 
Jan. 20, 2021, 11 a.m. 1.9 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 29.0 ppb (27) N/A 73.1 μg/m3 (60) 14.0 μg/m3 (55) 60.0
 
Jan. 20, 2021, 10 a.m. 1.1 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 29.0 ppb (27) N/A 76.3 μg/m3 (62) 19.0 μg/m3 (66) 66.0
 
Jan. 20, 2021, 9 a.m. 1.2 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 29.0 ppb (27) N/A 117.0 μg/m3 (82) 25.0 μg/m3 (79) 82.0
 
Jan. 20, 2021, 8 a.m. 1.1 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 30.0 ppb (28) N/A 121.2 μg/m3 (84) 22.0 μg/m3 (72) 84.0
 
Jan. 20, 2021, 7 a.m. 1.5 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 31.0 ppb (29) N/A 86.8 μg/m3 (67) 16.0 μg/m3 (60) 67.0
 
Jan. 20, 2021, 6 a.m. 2.7 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 31.0 ppb (29) N/A 57.0 μg/m3 (52) 11.0 μg/m3 (46) 52.0
 
Jan. 20, 2021, 5 a.m. 4.1 ppb (4) 0.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (27) N/A 56.4 μg/m3 (52) 8.0 μg/m3 (34) 52.0
 
Jan. 20, 2021, 4 a.m. 6.6 ppb (7) 0.7 ppb (1) N/A 6.0 ppb (6) N/A N/A 27.0 ppb (25) N/A 36.2 μg/m3 (34) 3.0 μg/m3 (13) 34.0
 
Jan. 20, 2021, 3 a.m. 4.3 ppb (5) 0.5 ppb (1) N/A 4.0 ppb (4) N/A N/A 31.0 ppb (29) N/A 22.4 μg/m3 (21) 2.0 μg/m3 (9) 29.0
 
Jan. 20, 2021, 2 a.m. 4.1 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (30) N/A 11.9 μg/m3 (12) 4.0 μg/m3 (17) 30.0
 
Jan. 20, 2021, 1 a.m. 6.0 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 30.0 ppb (28) N/A 25.2 μg/m3 (24) 5.0 μg/m3 (21) 28.0
 
Jan. 20, 2021, midnight 3.2 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 33.0 ppb (31) N/A 22.7 μg/m3 (22) 3.0 μg/m3 (13) 31.0
 
Jan. 19, 2021, 11 p.m. 4.7 ppb (5) 1.3 ppb (2) N/A 3.0 ppb (3) N/A N/A 34.0 ppb (32) N/A 12.0 μg/m3 (12) 4.0 μg/m3 (17) 32.0
 
Jan. 19, 2021, 10 p.m. 3.3 ppb (4) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (31) N/A 19.8 μg/m3 (19) 5.0 μg/m3 (21) 31.0
 
Jan. 19, 2021, 9 p.m. 3.3 ppb (4) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (31) N/A 17.5 μg/m3 (17) 4.0 μg/m3 (17) 31.0
 
Jan. 19, 2021, 8 p.m. 2.7 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (28) N/A 28.4 μg/m3 (27) 2.0 μg/m3 (9) 28.0
 
Jan. 19, 2021, 7 p.m. 3.2 ppb (4) 1.2 ppb (2) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (28) N/A 32.6 μg/m3 (31) 0.0 μg/m3 (0) 31.0
 
Jan. 19, 2021, 6 p.m. 2.8 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A 31.0 ppb (29) N/A 39.6 μg/m3 (37) 4.0 μg/m3 (17) 37.0
 
Jan. 19, 2021, 5 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (28) N/A 27.3 μg/m3 (26) 2.0 μg/m3 (9) 28.0
 
Jan. 19, 2021, 4 p.m. 2.9 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (28) N/A 25.1 μg/m3 (24) 0.0 μg/m3 (0) 28.0
 
Jan. 19, 2021, 3 p.m. 3.6 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 31.0 ppb (29) N/A 14.8 μg/m3 (14) 1.0 μg/m3 (5) 29.0
 
Jan. 19, 2021, 2 p.m. 2.9 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 32.0 ppb (30) N/A 18.2 μg/m3 (17) -1.0 μg/m3 (0) 30.0
 
Jan. 19, 2021, 1 p.m. 1.2 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 35.0 ppb (33) N/A 31.5 μg/m3 (30) 0.0 μg/m3 (0) 33.0
 
Jan. 19, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 26.2 μg/m3 (25) 0.0 μg/m3 (0) 25.0
 
Jan. 19, 2021, 11 a.m. 0.6 ppb (1) 0.2 ppb (1) N/A 0.0 ppb (0) N/A N/A 37.0 ppb (35) N/A 20.4 μg/m3 (19) -2.0 μg/m3 (0) 35.0
 
Jan. 19, 2021, 10 a.m. 0.6 ppb (1) 0.3 ppb (1) N/A 0.0 ppb (0) N/A N/A 37.0 ppb (35) N/A 13.2 μg/m3 (13) -2.0 μg/m3 (0) 35.0
 
Jan. 19, 2021, 9 a.m. 2.0 ppb (2) 1.2 ppb (2) N/A 1.0 ppb (1) N/A N/A 36.0 ppb (34) N/A 20.4 μg/m3 (19) 1.0 μg/m3 (5) 34.0
 
Jan. 19, 2021, 8 a.m. 0.5 ppb (1) 0.3 ppb (1) N/A 0.0 ppb (0) N/A N/A 36.0 ppb (34) N/A 20.4 μg/m3 (19) 3.0 μg/m3 (13) 34.0
 
Jan. 19, 2021, 7 a.m. 0.9 ppb (1) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A 36.0 ppb (34) N/A 16.0 μg/m3 (15) 1.0 μg/m3 (5) 34.0
 
Jan. 19, 2021, 6 a.m. 1.5 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (35) N/A 7.6 μg/m3 (8) 0.0 μg/m3 (0) 35.0
 
Jan. 19, 2021, 5 a.m. 1.2 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (36) N/A 10.9 μg/m3 (11) 3.0 μg/m3 (13) 36.0
 
Jan. 19, 2021, 4 a.m. 1.9 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (35) N/A 6.6 μg/m3 (7) 1.0 μg/m3 (5) 35.0
 
Jan. 19, 2021, 3 a.m. 3.6 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 33.0 ppb (31) N/A 6.1 μg/m3 (6) 3.0 μg/m3 (13) 31.0
 
Jan. 19, 2021, 2 a.m. 4.5 ppb (5) 0.6 ppb (1) N/A 4.0 ppb (4) N/A N/A 31.0 ppb (29) N/A 5.3 μg/m3 (5) 5.0 μg/m3 (21) 29.0
 
Jan. 19, 2021, 1 a.m. 3.1 ppb (3) 0.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (33) N/A 5.1 μg/m3 (5) 3.0 μg/m3 (13) 33.0
 
Jan. 19, 2021, midnight 2.3 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (35) N/A 9.9 μg/m3 (10) 0.0 μg/m3 (0) 35.0
 
Jan. 18, 2021, 11 p.m. 1.8 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (36) N/A 10.3 μg/m3 (10) 0.0 μg/m3 (0) 36.0
 
Jan. 18, 2021, 10 p.m. 2.1 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (36) N/A 12.2 μg/m3 (12) 1.0 μg/m3 (5) 36.0
 
Jan. 18, 2021, 9 p.m. 2.4 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (35) N/A 13.4 μg/m3 (13) 5.0 μg/m3 (21) 35.0
 
Jan. 18, 2021, 8 p.m. 2.2 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (35) N/A 9.3 μg/m3 (9) 3.0 μg/m3 (13) 35.0
 
Jan. 18, 2021, 7 p.m. 2.5 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (34) N/A 9.9 μg/m3 (10) 2.0 μg/m3 (9) 34.0
 
Jan. 18, 2021, 6 p.m. 2.8 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (32) N/A 7.7 μg/m3 (8) 2.0 μg/m3 (9) 32.0
 
Jan. 18, 2021, 5 p.m. 2.3 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (32) N/A 10.6 μg/m3 (10) -1.0 μg/m3 (0) 32.0
 
Jan. 18, 2021, 4 p.m. 1.9 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A N/A 34.0 ppb (32) N/A 11.6 μg/m3 (11) 1.0 μg/m3 (5) 32.0
 
Jan. 18, 2021, 3 p.m. 1.2 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A 34.0 ppb (32) N/A 13.7 μg/m3 (13) 1.0 μg/m3 (5) 32.0
 
Jan. 18, 2021, 2 p.m. 2.2 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (32) N/A 14.6 μg/m3 (14) 0.0 μg/m3 (0) 32.0
 
Jan. 18, 2021, 1 p.m. 1.5 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A 33.0 ppb (31) N/A 9.2 μg/m3 (9) 1.0 μg/m3 (5) 31.0
 
Jan. 18, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 9.1 μg/m3 (9) 2.0 μg/m3 (9) 9.0
 
Jan. 18, 2021, 11 a.m. 0.6 ppb (1) 0.5 ppb (1) N/A 0.0 ppb (0) N/A N/A 34.0 ppb (32) N/A 5.5 μg/m3 (6) 0.0 μg/m3 (0) 32.0
 
Jan. 18, 2021, 10 a.m. 0.6 ppb (1) 0.4 ppb (1) N/A 0.0 ppb (0) N/A N/A 32.0 ppb (30) N/A 5.0 μg/m3 (5) -1.0 μg/m3 (0) 30.0
 
Jan. 18, 2021, 9 a.m. 0.8 ppb (1) 0.5 ppb (1) N/A 0.0 ppb (0) N/A N/A 30.0 ppb (28) N/A 9.1 μg/m3 (9) 6.0 μg/m3 (25) 28.0
 
Jan. 18, 2021, 8 a.m. 6.6 ppb (7) 1.6 ppb (2) N/A 5.0 ppb (5) N/A N/A 21.0 ppb (20) N/A 19.5 μg/m3 (19) 12.0 μg/m3 (50) 50.0
 
Jan. 18, 2021, 7 a.m. 14.1 ppb (14) 2.9 ppb (3) N/A 11.0 ppb (11) N/A N/A 10.0 ppb (10) N/A 26.2 μg/m3 (25) 18.0 μg/m3 (64) 64.0
 
Jan. 18, 2021, 6 a.m. 22.4 ppb (22) 4.5 ppb (5) N/A 18.0 ppb (17) N/A N/A 7.0 ppb (7) N/A 38.6 μg/m3 (36) 29.0 μg/m3 (87) 87.0
 
Jan. 18, 2021, 5 a.m. 19.9 ppb (19) 3.9 ppb (4) N/A 16.0 ppb (16) N/A N/A 11.0 ppb (11) N/A 33.7 μg/m3 (32) 23.0 μg/m3 (74) 74.0
 
Jan. 18, 2021, 4 a.m. 21.8 ppb (21) 4.1 ppb (4) N/A 18.0 ppb (17) N/A N/A 9.0 ppb (9) N/A 34.6 μg/m3 (33) 26.0 μg/m3 (81) 81.0
 
Jan. 18, 2021, 3 a.m. 44.4 ppb (42) 19.2 ppb (19) N/A 25.0 ppb (24) N/A N/A 5.0 ppb (5) N/A 35.2 μg/m3 (33) 26.0 μg/m3 (81) 81.0
 
Jan. 18, 2021, 2 a.m. 33.3 ppb (32) 9.8 ppb (10) N/A 24.0 ppb (23) N/A N/A 10.0 ppb (10) N/A 30.1 μg/m3 (28) 25.0 μg/m3 (79) 79.0
 
Jan. 18, 2021, 1 a.m. 16.5 ppb (16) 2.3 ppb (3) N/A 14.0 ppb (14) N/A N/A 20.0 ppb (19) N/A 26.0 μg/m3 (25) 17.0 μg/m3 (62) 62.0
 
Jan. 18, 2021, midnight 5.5 ppb (6) 1.1 ppb (2) N/A 4.0 ppb (4) N/A N/A 31.0 ppb (29) N/A 14.5 μg/m3 (14) 6.0 μg/m3 (25) 29.0
 
Jan. 17, 2021, 11 p.m. 4.6 ppb (5) 1.4 ppb (2) N/A 3.0 ppb (3) N/A N/A 31.0 ppb (29) N/A 9.0 μg/m3 (9) 7.0 μg/m3 (30) 30.0
 
Jan. 17, 2021, 10 p.m. 5.9 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (27) N/A 10.8 μg/m3 (10) 8.0 μg/m3 (34) 34.0
 
Jan. 17, 2021, 9 p.m. 7.0 ppb (7) 2.5 ppb (3) N/A 4.0 ppb (4) N/A N/A 26.0 ppb (25) N/A 12.5 μg/m3 (12) 7.0 μg/m3 (30) 30.0
 
Jan. 17, 2021, 8 p.m. 9.2 ppb (9) 3.8 ppb (4) N/A 5.0 ppb (5) N/A N/A 23.0 ppb (22) N/A 11.7 μg/m3 (11) 7.0 μg/m3 (30) 30.0
 
Jan. 17, 2021, 7 p.m. 9.9 ppb (10) 4.6 ppb (5) N/A 5.0 ppb (5) N/A N/A 20.0 ppb (19) N/A 11.2 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2021, 6 p.m. 11.0 ppb (11) 6.3 ppb (6) N/A 5.0 ppb (5) N/A N/A 16.0 ppb (15) N/A 9.9 μg/m3 (10) 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2021, 5 p.m. 10.2 ppb (10) 4.1 ppb (4) N/A 6.0 ppb (6) N/A N/A 12.0 ppb (12) N/A 14.6 μg/m3 (14) 11.0 μg/m3 (46) 46.0
 
Jan. 17, 2021, 4 p.m. 14.8 ppb (14) 6.4 ppb (7) N/A 8.0 ppb (8) N/A N/A 6.0 ppb (6) N/A 19.4 μg/m3 (18) 13.0 μg/m3 (53) 53.0
 
Jan. 17, 2021, 3 p.m. 37.6 ppb (36) 28.2 ppb (27) N/A 9.0 ppb (9) N/A N/A 1.0 ppb (1) N/A 18.7 μg/m3 (18) 19.0 μg/m3 (66) 66.0
 
Jan. 17, 2021, 2 p.m. 19.4 ppb (19) 10.3 ppb (10) N/A 9.0 ppb (9) N/A N/A 1.0 ppb (1) N/A 18.0 μg/m3 (17) 14.0 μg/m3 (55) 55.0
 
Jan. 17, 2021, 1 p.m. 12.5 ppb (12) 5.4 ppb (6) N/A 7.0 ppb (7) N/A N/A 3.0 ppb (3) N/A 16.9 μg/m3 (16) 15.0 μg/m3 (58) 58.0
 
Jan. 17, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 26.2 μg/m3 (25) 21.0 μg/m3 (70) 70.0
 
Jan. 17, 2021, 11 a.m. 25.7 ppb (25) 15.3 ppb (15) N/A 10.0 ppb (10) N/A N/A 1.0 ppb (1) N/A 20.0 μg/m3 (19) 18.0 μg/m3 (64) 64.0
 
Jan. 17, 2021, 10 a.m. 18.2 ppb (18) 7.4 ppb (7) N/A 11.0 ppb (11) N/A N/A 2.0 ppb (2) N/A 24.3 μg/m3 (23) 16.0 μg/m3 (60) 60.0
 
Jan. 17, 2021, 9 a.m. 25.0 ppb (24) 13.5 ppb (13) N/A 11.0 ppb (11) N/A N/A 2.0 ppb (2) N/A 27.9 μg/m3 (26) 20.0 μg/m3 (68) 68.0
 
Jan. 17, 2021, 8 a.m. 27.7 ppb (27) 13.8 ppb (14) N/A 14.0 ppb (14) N/A N/A 2.0 ppb (2) N/A 21.9 μg/m3 (21) 28.0 μg/m3 (85) 85.0
 
Jan. 17, 2021, 7 a.m. 19.0 ppb (18) 6.9 ppb (7) N/A 12.0 ppb (12) N/A N/A 4.0 ppb (4) N/A 30.8 μg/m3 (29) 20.0 μg/m3 (68) 68.0
 
Jan. 17, 2021, 6 a.m. 18.2 ppb (18) 5.1 ppb (5) N/A 13.0 ppb (13) N/A N/A 6.0 ppb (6) N/A 26.0 μg/m3 (25) 19.0 μg/m3 (66) 66.0
 
Jan. 17, 2021, 5 a.m. 33.0 ppb (32) 13.3 ppb (13) N/A 20.0 ppb (19) N/A N/A 2.0 ppb (2) N/A 39.4 μg/m3 (37) 27.0 μg/m3 (83) 83.0
 
Jan. 17, 2021, 4 a.m. 30.9 ppb (30) 11.6 ppb (11) N/A 19.0 ppb (18) N/A N/A 5.0 ppb (5) N/A 29.4 μg/m3 (28) 22.0 μg/m3 (72) 72.0
 
Jan. 17, 2021, 3 a.m. 39.8 ppb (38) 16.9 ppb (16) N/A 23.0 ppb (22) N/A N/A 5.0 ppb (5) N/A 27.8 μg/m3 (26) 22.0 μg/m3 (72) 72.0
 
Jan. 17, 2021, 2 a.m. 27.6 ppb (27) 7.0 ppb (7) N/A 21.0 ppb (20) N/A N/A 9.0 ppb (9) N/A 23.0 μg/m3 (22) 23.0 μg/m3 (74) 74.0
 
Jan. 17, 2021, 1 a.m. 25.9 ppb (25) 7.2 ppb (7) N/A 19.0 ppb (18) N/A N/A 11.0 ppb (11) N/A 25.8 μg/m3 (24) 13.0 μg/m3 (53) 53.0
 
Jan. 17, 2021, midnight 7.4 ppb (7) 1.4 ppb (2) N/A 6.0 ppb (6) N/A N/A 25.0 ppb (24) N/A 11.5 μg/m3 (11) 11.0 μg/m3 (46) 46.0
 
Jan. 16, 2021, 11 p.m. 5.7 ppb (6) 1.7 ppb (2) N/A 4.0 ppb (4) N/A N/A 28.0 ppb (26) N/A 7.9 μg/m3 (8) 6.0 μg/m3 (25) 26.0
 
Jan. 16, 2021, 10 p.m. 5.5 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (27) N/A 8.8 μg/m3 (9) 8.0 μg/m3 (34) 34.0
 
Jan. 16, 2021, 9 p.m. 4.6 ppb (5) 1.9 ppb (2) N/A 3.0 ppb (3) N/A N/A 27.0 ppb (25) N/A 11.0 μg/m3 (11) 2.0 μg/m3 (9) 25.0
 
Jan. 16, 2021, 8 p.m. 5.6 ppb (6) 2.7 ppb (3) N/A 3.0 ppb (3) N/A N/A 22.0 ppb (21) N/A 9.7 μg/m3 (9) 4.0 μg/m3 (17) 21.0
 
Jan. 16, 2021, 7 p.m. 5.3 ppb (5) 2.7 ppb (3) N/A 3.0 ppb (3) N/A N/A 19.0 ppb (18) N/A 8.4 μg/m3 (8) 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2021, 6 p.m. 10.0 ppb (10) 5.3 ppb (5) N/A 5.0 ppb (5) N/A N/A 14.0 ppb (13) N/A 12.9 μg/m3 (12) 5.0 μg/m3 (21) 21.0
 
Jan. 16, 2021, 5 p.m. 10.2 ppb (10) 5.3 ppb (5) N/A 5.0 ppb (5) N/A N/A 10.0 ppb (10) N/A 16.6 μg/m3 (16) 5.0 μg/m3 (21) 21.0
 
Jan. 16, 2021, 4 p.m. 16.6 ppb (16) 8.8 ppb (9) N/A 8.0 ppb (8) N/A N/A 6.0 ppb (6) N/A 15.7 μg/m3 (15) 8.0 μg/m3 (34) 34.0
 
Jan. 16, 2021, 3 p.m. 27.5 ppb (26) 14.4 ppb (14) N/A 13.0 ppb (13) N/A N/A 2.0 ppb (2) N/A 17.4 μg/m3 (17) 10.0 μg/m3 (42) 42.0
 
Jan. 16, 2021, 2 p.m. 12.7 ppb (12) 4.3 ppb (5) N/A 8.0 ppb (8) N/A N/A 4.0 ppb (4) N/A 9.5 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2021, 1 p.m. 9.8 ppb (10) 2.7 ppb (3) N/A 7.0 ppb (7) N/A N/A 5.0 ppb (5) N/A 10.7 μg/m3 (10) 8.0 μg/m3 (34) 34.0
 
Jan. 16, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 10.5 μg/m3 (10) 10.0 μg/m3 (42) 42.0
 
Jan. 16, 2021, 11 a.m. 4.9 ppb (5) 1.7 ppb (2) N/A 3.0 ppb (3) N/A N/A 9.0 ppb (9) N/A 8.2 μg/m3 (8) 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2021, 10 a.m. 5.5 ppb (6) 1.5 ppb (2) N/A 4.0 ppb (4) N/A N/A 9.0 ppb (9) N/A 8.5 μg/m3 (8) 8.0 μg/m3 (34) 34.0
 
Jan. 16, 2021, 9 a.m. 8.3 ppb (8) 2.6 ppb (3) N/A 6.0 ppb (6) N/A N/A 6.0 ppb (6) N/A 18.2 μg/m3 (17) 8.0 μg/m3 (34) 34.0
 
Jan. 16, 2021, 8 a.m. 5.8 ppb (6) 1.1 ppb (2) N/A 5.0 ppb (5) N/A N/A 10.0 ppb (10) N/A 14.9 μg/m3 (14) 19.0 μg/m3 (66) 66.0
 
Jan. 16, 2021, 7 a.m. 8.2 ppb (8) 2.3 ppb (3) N/A 6.0 ppb (6) N/A N/A 8.0 ppb (8) N/A 25.0 μg/m3 (24) 18.0 μg/m3 (64) 64.0
 
Jan. 16, 2021, 6 a.m. 15.4 ppb (15) 4.1 ppb (4) N/A 11.0 ppb (11) N/A N/A 6.0 ppb (6) N/A 26.5 μg/m3 (25) 23.0 μg/m3 (74) 74.0
 
Jan. 16, 2021, 5 a.m. 13.0 ppb (13) 2.3 ppb (3) N/A 11.0 ppb (11) N/A N/A 12.0 ppb (12) N/A 33.1 μg/m3 (31) 22.0 μg/m3 (72) 72.0
 
Jan. 16, 2021, 4 a.m. 13.5 ppb (13) 2.8 ppb (3) N/A 11.0 ppb (11) N/A N/A 10.0 ppb (10) N/A 30.9 μg/m3 (29) 33.0 μg/m3 (95) 95.0
 
Jan. 16, 2021, 3 a.m. 13.1 ppb (13) 2.8 ppb (3) N/A 10.0 ppb (10) N/A N/A 10.0 ppb (10) N/A 28.4 μg/m3 (27) 21.0 μg/m3 (70) 70.0
 
Jan. 16, 2021, 2 a.m. 13.9 ppb (14) 2.5 ppb (3) N/A 12.0 ppb (12) N/A N/A 12.0 ppb (12) N/A 28.5 μg/m3 (27) 20.0 μg/m3 (68) 68.0
 
Jan. 16, 2021, 1 a.m. 14.1 ppb (14) 2.7 ppb (3) N/A 11.0 ppb (11) N/A N/A 14.0 ppb (13) N/A 26.4 μg/m3 (25) 24.0 μg/m3 (77) 77.0
 
Jan. 16, 2021, midnight 9.8 ppb (10) 2.2 ppb (3) N/A 8.0 ppb (8) N/A N/A 22.0 ppb (21) N/A 26.8 μg/m3 (25) 20.0 μg/m3 (68) 68.0
 
Jan. 15, 2021, 11 p.m. 9.5 ppb (9) 2.7 ppb (3) N/A 7.0 ppb (7) N/A N/A 24.0 ppb (23) N/A 26.8 μg/m3 (25) 19.0 μg/m3 (66) 66.0
 
Jan. 15, 2021, 10 p.m. 8.2 ppb (8) 3.1 ppb (3) N/A 5.0 ppb (5) N/A N/A 26.0 ppb (25) N/A 22.9 μg/m3 (22) 18.0 μg/m3 (64) 64.0
 
Jan. 15, 2021, 9 p.m. 8.7 ppb (9) 4.1 ppb (4) N/A 5.0 ppb (5) N/A N/A 20.0 ppb (19) N/A 21.7 μg/m3 (21) 19.0 μg/m3 (66) 66.0
 
Jan. 15, 2021, 8 p.m. 11.1 ppb (11) 6.1 ppb (6) N/A 5.0 ppb (5) N/A N/A 16.0 ppb (15) N/A 25.9 μg/m3 (24) 18.0 μg/m3 (64) 64.0
 
Jan. 15, 2021, 7 p.m. 23.3 ppb (22) 12.8 ppb (13) N/A 11.0 ppb (11) N/A N/A 11.0 ppb (11) N/A 31.9 μg/m3 (30) 17.0 μg/m3 (62) 62.0
 
Jan. 15, 2021, 6 p.m. 20.3 ppb (20) 11.7 ppb (12) N/A 9.0 ppb (9) N/A N/A 8.0 ppb (8) N/A 22.0 μg/m3 (21) 14.0 μg/m3 (55) 55.0
 
Jan. 15, 2021, 5 p.m. 20.1 ppb (19) 12.5 ppb (12) N/A 8.0 ppb (8) N/A N/A 5.0 ppb (5) N/A 21.8 μg/m3 (21) 17.0 μg/m3 (62) 62.0
 
Jan. 15, 2021, 4 p.m. 55.4 ppb (53) 45.7 ppb (44) N/A 10.0 ppb (10) N/A N/A 1.0 ppb (1) N/A 36.5 μg/m3 (34) 12.0 μg/m3 (50) 53.0
 
Jan. 15, 2021, 3 p.m. 90.4 ppb (90) 80.6 ppb (80) N/A 10.0 ppb (10) N/A N/A 1.0 ppb (1) N/A 39.5 μg/m3 (37) 28.0 μg/m3 (85) 90.0
 
Jan. 15, 2021, 2 p.m. 71.4 ppb (70) 63.5 ppb (62) N/A 8.0 ppb (8) N/A N/A 1.0 ppb (1) N/A 40.8 μg/m3 (38) 24.0 μg/m3 (77) 77.0
 
Jan. 15, 2021, 1 p.m. 51.4 ppb (49) 43.6 ppb (42) N/A 8.0 ppb (8) N/A N/A 2.0 ppb (2) N/A 37.5 μg/m3 (35) 28.0 μg/m3 (85) 85.0
 
Jan. 15, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 39.5 μg/m3 (37) 28.0 μg/m3 (85) 85.0
 
Jan. 15, 2021, 11 a.m. 35.9 ppb (34) 28.0 ppb (27) N/A 8.0 ppb (8) N/A N/A 2.0 ppb (2) N/A 22.2 μg/m3 (21) 17.0 μg/m3 (62) 62.0
 
Jan. 15, 2021, 10 a.m. 23.6 ppb (23) 15.2 ppb (15) N/A 8.0 ppb (8) N/A N/A 1.0 ppb (1) N/A 32.8 μg/m3 (31) 30.0 μg/m3 (89) 89.0
 
Jan. 15, 2021, 9 a.m. 19.4 ppb (19) 10.1 ppb (10) N/A 9.0 ppb (9) N/A N/A 1.0 ppb (1) N/A 26.1 μg/m3 (25) 20.0 μg/m3 (68) 68.0
 
Jan. 15, 2021, 8 a.m. 16.5 ppb (16) 6.4 ppb (7) N/A 10.0 ppb (10) N/A N/A 1.0 ppb (1) N/A 23.3 μg/m3 (22) 28.0 μg/m3 (85) 85.0
 
Jan. 15, 2021, 7 a.m. 19.2 ppb (19) 6.8 ppb (7) N/A 12.0 ppb (12) N/A N/A 2.0 ppb (2) N/A 28.9 μg/m3 (27) 28.0 μg/m3 (85) 85.0
 
Jan. 15, 2021, 6 a.m. 22.4 ppb (22) 9.0 ppb (9) N/A 13.0 ppb (13) N/A N/A 1.0 ppb (1) N/A 33.3 μg/m3 (31) 27.0 μg/m3 (83) 83.0
 
Jan. 15, 2021, 5 a.m. 34.7 ppb (33) 19.2 ppb (19) N/A 16.0 ppb (16) N/A N/A 1.0 ppb (1) N/A 33.7 μg/m3 (32) 20.0 μg/m3 (68) 68.0
 
Jan. 15, 2021, 4 a.m. 28.1 ppb (27) 10.5 ppb (10) N/A 18.0 ppb (17) N/A N/A 3.0 ppb (3) N/A 38.1 μg/m3 (36) 30.0 μg/m3 (89) 89.0
 
Jan. 15, 2021, 3 a.m. 22.9 ppb (22) 7.1 ppb (7) N/A 16.0 ppb (16) N/A N/A 6.0 ppb (6) N/A 28.2 μg/m3 (27) 20.0 μg/m3 (68) 68.0
 
Jan. 15, 2021, 2 a.m. 23.4 ppb (23) 6.1 ppb (6) N/A 17.0 ppb (17) N/A N/A 5.0 ppb (5) N/A 21.4 μg/m3 (20) 16.0 μg/m3 (60) 60.0
 
Jan. 15, 2021, 1 a.m. 19.6 ppb (19) 4.2 ppb (4) N/A 16.0 ppb (16) N/A N/A 9.0 ppb (9) N/A 20.3 μg/m3 (19) 8.0 μg/m3 (34) 34.0
 
Jan. 15, 2021, midnight 8.2 ppb (8) 2.2 ppb (3) N/A 6.0 ppb (6) N/A N/A 18.0 ppb (17) N/A 7.5 μg/m3 (7) 6.0 μg/m3 (25) 25.0
 
Jan. 14, 2021, 11 p.m. 5.3 ppb (5) 2.1 ppb (2) N/A 3.0 ppb (3) N/A N/A 22.0 ppb (21) N/A 5.1 μg/m3 (5) 5.0 μg/m3 (21) 21.0
 
Jan. 14, 2021, 10 p.m. 4.8 ppb (5) 2.4 ppb (3) N/A 2.0 ppb (2) N/A N/A 21.0 ppb (20) N/A 2.6 μg/m3 (3) 3.0 μg/m3 (13) 20.0
 
Jan. 14, 2021, 9 p.m. 4.8 ppb (5) 2.6 ppb (3) N/A 2.0 ppb (2) N/A N/A 21.0 ppb (20) N/A 4.0 μg/m3 (4) 1.0 μg/m3 (5) 20.0
 
Jan. 14, 2021, 8 p.m. 8.4 ppb (8) 5.0 ppb (5) N/A 3.0 ppb (3) N/A N/A 15.0 ppb (14) N/A 6.2 μg/m3 (6) 3.0 μg/m3 (13) 14.0