AQSQID: 061010003

Site Name: Yuba City

Location: Yuba City (Almond St), CA

Reporting: True, Located: True

Current AQI: 50.0

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. 25, 2020, 9 p.m. 7.6 ppb (7) 2.5 ppb (2) N/A 5.0 ppb (5) N/A N/A 21.0 ppb (16) N/A 19.0 μg/m3 (17) 12.0 μg/m3 (50) 50.0
 
Jan. 25, 2020, 8 p.m. 9.2 ppb (9) 2.8 ppb (3) N/A 6.0 ppb (6) N/A N/A 16.0 ppb (12) N/A 28.0 μg/m3 (25) 18.0 μg/m3 (63) 63.0
 
Jan. 25, 2020, 7 p.m. 9.1 ppb (8) 3.2 ppb (3) N/A 6.0 ppb (6) N/A N/A 13.0 ppb (10) N/A 26.0 μg/m3 (24) 18.0 μg/m3 (63) 63.0
 
Jan. 25, 2020, 6 p.m. 10.9 ppb (10) 4.6 ppb (4) N/A 6.0 ppb (6) N/A N/A 9.0 ppb (7) N/A 27.0 μg/m3 (25) 21.0 μg/m3 (69) 69.0
 
Jan. 25, 2020, 5 p.m. 11.2 ppb (10) 4.8 ppb (4) N/A 7.0 ppb (6) N/A N/A 7.0 ppb (5) N/A 25.0 μg/m3 (23) 19.0 μg/m3 (65) 65.0
 
Jan. 25, 2020, 4 p.m. 12.7 ppb (12) 6.3 ppb (6) N/A 6.0 ppb (6) N/A N/A 4.0 ppb (3) N/A 23.0 μg/m3 (21) 17.0 μg/m3 (61) 61.0
 
Jan. 25, 2020, 3 p.m. 21.2 ppb (20) 10.8 ppb (10) N/A 11.0 ppb (10) N/A N/A 1.0 ppb (1) N/A 28.0 μg/m3 (25) 17.0 μg/m3 (61) 61.0
 
Jan. 25, 2020, 2 p.m. 18.9 ppb (18) 9.0 ppb (8) N/A 10.0 ppb (9) N/A N/A 1.0 ppb (1) N/A 27.0 μg/m3 (25) 18.0 μg/m3 (63) 63.0
 
Jan. 25, 2020, 1 p.m. 16.0 ppb (15) 6.0 ppb (6) N/A 10.0 ppb (9) N/A N/A 2.0 ppb (2) N/A 29.0 μg/m3 (26) 22.0 μg/m3 (71) 71.0
 
Jan. 25, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (21) 17.0 μg/m3 (61) 61.0
 
Jan. 25, 2020, 11 a.m. 8.9 ppb (8) 2.0 ppb (2) N/A 7.0 ppb (6) N/A N/A 5.0 ppb (4) N/A 22.0 μg/m3 (20) 17.0 μg/m3 (61) 61.0
 
Jan. 25, 2020, 10 a.m. 7.7 ppb (7) 1.6 ppb (1) N/A 6.0 ppb (6) N/A N/A 6.0 ppb (5) N/A 22.0 μg/m3 (20) 16.0 μg/m3 (59) 59.0
 
Jan. 25, 2020, 9 a.m. 6.9 ppb (6) 1.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 8.0 ppb (6) N/A 23.0 μg/m3 (21) 15.0 μg/m3 (56) 56.0
 
Jan. 25, 2020, 8 a.m. 11.7 ppb (11) 2.7 ppb (3) N/A 9.0 ppb (8) N/A N/A 5.0 ppb (4) N/A 22.0 μg/m3 (20) 14.0 μg/m3 (54) 54.0
 
Jan. 25, 2020, 7 a.m. 11.4 ppb (11) 2.3 ppb (2) N/A 9.0 ppb (8) N/A N/A 6.0 ppb (5) N/A 24.0 μg/m3 (22) 17.0 μg/m3 (61) 61.0
 
Jan. 25, 2020, 6 a.m. 12.7 ppb (12) 3.4 ppb (3) N/A 9.0 ppb (8) N/A N/A 8.0 ppb (6) N/A 24.0 μg/m3 (22) 19.0 μg/m3 (65) 65.0
 
Jan. 25, 2020, 5 a.m. 10.3 ppb (10) 2.2 ppb (2) N/A 8.0 ppb (7) N/A N/A 10.0 ppb (8) N/A 22.0 μg/m3 (20) 15.0 μg/m3 (56) 56.0
 
Jan. 25, 2020, 4 a.m. 8.1 ppb (8) 1.7 ppb (2) N/A 6.0 ppb (6) N/A N/A 13.0 ppb (10) N/A 18.0 μg/m3 (16) 9.0 μg/m3 (38) 38.0
 
Jan. 25, 2020, 3 a.m. 6.1 ppb (6) 0.9 ppb (1) N/A 5.0 ppb (5) N/A N/A 16.0 ppb (12) N/A 17.0 μg/m3 (15) 13.0 μg/m3 (52) 52.0
 
Jan. 25, 2020, 2 a.m. 7.2 ppb (7) 1.4 ppb (1) N/A 6.0 ppb (6) N/A N/A 15.0 ppb (12) N/A 13.0 μg/m3 (12) 9.0 μg/m3 (38) 38.0
 
Jan. 25, 2020, 1 a.m. 8.4 ppb (8) 1.9 ppb (2) N/A 7.0 ppb (6) N/A N/A 15.0 ppb (12) N/A 10.0 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
Jan. 25, 2020, midnight 8.6 ppb (8) 2.9 ppb (3) N/A 6.0 ppb (6) N/A N/A 15.0 ppb (12) N/A 15.0 μg/m3 (14) 8.0 μg/m3 (33) 33.0
 
Jan. 24, 2020, 11 p.m. 7.0 ppb (6) 1.6 ppb (1) N/A 5.0 ppb (5) N/A N/A 18.0 ppb (14) N/A 13.0 μg/m3 (12) 9.0 μg/m3 (38) 38.0
 
Jan. 24, 2020, 10 p.m. 8.1 ppb (8) 2.3 ppb (2) N/A 6.0 ppb (6) N/A N/A 18.0 ppb (14) N/A 15.0 μg/m3 (14) 9.0 μg/m3 (38) 38.0
 
Jan. 24, 2020, 9 p.m. 10.8 ppb (10) 3.5 ppb (3) N/A 7.0 ppb (6) N/A N/A 19.0 ppb (15) N/A 14.0 μg/m3 (13) 11.0 μg/m3 (46) 46.0
 
Jan. 24, 2020, 8 p.m. 14.1 ppb (13) 5.9 ppb (5) N/A 8.0 ppb (7) N/A N/A 14.0 ppb (11) N/A 21.0 μg/m3 (19) 13.0 μg/m3 (52) 52.0
 
Jan. 24, 2020, 7 p.m. 15.7 ppb (15) 6.4 ppb (6) N/A 9.0 ppb (8) N/A N/A 11.0 ppb (8) N/A 21.0 μg/m3 (19) 16.0 μg/m3 (59) 59.0
 
Jan. 24, 2020, 6 p.m. 15.6 ppb (14) 6.3 ppb (6) N/A 9.0 ppb (8) N/A N/A 9.0 ppb (7) N/A 26.0 μg/m3 (24) 17.0 μg/m3 (61) 61.0
 
Jan. 24, 2020, 5 p.m. 37.7 ppb (35) 25.6 ppb (24) N/A 12.0 ppb (11) N/A N/A 2.0 ppb (2) N/A 24.0 μg/m3 (22) 14.0 μg/m3 (54) 54.0
 
Jan. 24, 2020, 4 p.m. 49.0 ppb (45) 36.5 ppb (34) N/A 12.0 ppb (11) N/A N/A 1.0 ppb (1) N/A 24.0 μg/m3 (22) 13.0 μg/m3 (52) 52.0
 
Jan. 24, 2020, 3 p.m. 44.8 ppb (41) 31.6 ppb (29) N/A 13.0 ppb (12) N/A N/A 1.0 ppb (1) N/A 21.0 μg/m3 (19) 17.0 μg/m3 (61) 61.0
 
Jan. 24, 2020, 2 p.m. 34.0 ppb (31) 21.4 ppb (20) N/A 13.0 ppb (12) N/A N/A 0.0 ppb (0) N/A 23.0 μg/m3 (21) 14.0 μg/m3 (54) 54.0
 
Jan. 24, 2020, 1 p.m. 19.1 ppb (18) 8.9 ppb (8) N/A 10.0 ppb (9) N/A N/A 1.0 ppb (1) N/A 18.0 μg/m3 (16) 9.0 μg/m3 (38) 38.0
 
Jan. 24, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 10.0 μg/m3 (42) 42.0
 
Jan. 24, 2020, 11 a.m. 12.3 ppb (11) 4.3 ppb (4) N/A 8.0 ppb (7) N/A N/A 3.0 ppb (2) N/A 18.0 μg/m3 (16) 15.0 μg/m3 (56) 56.0
 
Jan. 24, 2020, 10 a.m. 11.5 ppb (11) 3.2 ppb (3) N/A 8.0 ppb (7) N/A N/A 2.0 ppb (2) N/A 22.0 μg/m3 (20) 16.0 μg/m3 (59) 59.0
 
Jan. 24, 2020, 9 a.m. 15.1 ppb (14) 5.2 ppb (5) N/A 10.0 ppb (9) N/A N/A 2.0 ppb (2) N/A 21.0 μg/m3 (19) 19.0 μg/m3 (65) 65.0
 
Jan. 24, 2020, 8 a.m. 22.6 ppb (21) 9.1 ppb (8) N/A 14.0 ppb (13) N/A N/A 1.0 ppb (1) N/A 26.0 μg/m3 (24) 22.0 μg/m3 (71) 71.0
 
Jan. 24, 2020, 7 a.m. 26.0 ppb (24) 11.8 ppb (11) N/A 14.0 ppb (13) N/A N/A 1.0 ppb (1) N/A 29.0 μg/m3 (26) 23.0 μg/m3 (73) 73.0
 
Jan. 24, 2020, 6 a.m. 25.7 ppb (24) 12.6 ppb (12) N/A 13.0 ppb (12) N/A N/A 1.0 ppb (1) N/A 37.0 μg/m3 (34) 25.0 μg/m3 (78) 78.0
 
Jan. 24, 2020, 5 a.m. 32.2 ppb (30) 17.1 ppb (16) N/A 15.0 ppb (14) N/A N/A 1.0 ppb (1) N/A 32.0 μg/m3 (29) 27.0 μg/m3 (82) 82.0
 
Jan. 24, 2020, 4 a.m. 37.1 ppb (34) 19.8 ppb (18) N/A 17.0 ppb (16) N/A N/A 1.0 ppb (1) N/A 31.0 μg/m3 (28) 19.0 μg/m3 (65) 65.0
 
Jan. 24, 2020, 3 a.m. 39.0 ppb (36) 19.4 ppb (18) N/A 19.0 ppb (18) N/A N/A 1.0 ppb (1) N/A 34.0 μg/m3 (31) 19.0 μg/m3 (65) 65.0
 
Jan. 24, 2020, 2 a.m. 29.1 ppb (27) 11.1 ppb (10) N/A 18.0 ppb (17) N/A N/A 2.0 ppb (2) N/A 29.0 μg/m3 (26) 14.0 μg/m3 (54) 54.0
 
Jan. 24, 2020, 1 a.m. 23.6 ppb (22) 6.5 ppb (6) N/A 17.0 ppb (16) N/A N/A 3.0 ppb (2) N/A 28.0 μg/m3 (25) 16.0 μg/m3 (59) 59.0
 
Jan. 24, 2020, midnight 17.9 ppb (17) 4.4 ppb (4) N/A 14.0 ppb (13) N/A N/A 9.0 ppb (7) N/A 29.0 μg/m3 (26) 17.0 μg/m3 (61) 61.0
 
Jan. 23, 2020, 11 p.m. 15.0 ppb (14) 4.1 ppb (4) N/A 11.0 ppb (10) N/A N/A 11.0 ppb (8) N/A 19.0 μg/m3 (17) 8.0 μg/m3 (33) 33.0
 
Jan. 23, 2020, 10 p.m. 13.3 ppb (12) 4.5 ppb (4) N/A 9.0 ppb (8) N/A N/A 13.0 ppb (10) N/A 18.0 μg/m3 (16) 8.0 μg/m3 (33) 33.0
 
Jan. 23, 2020, 9 p.m. 9.8 ppb (9) 3.0 ppb (3) N/A 7.0 ppb (6) N/A N/A 13.0 ppb (10) N/A 16.0 μg/m3 (15) 10.0 μg/m3 (42) 42.0
 
Jan. 23, 2020, 8 p.m. 10.8 ppb (10) 4.2 ppb (4) N/A 7.0 ppb (6) N/A N/A 11.0 ppb (8) N/A 18.0 μg/m3 (16) 15.0 μg/m3 (56) 56.0
 
Jan. 23, 2020, 7 p.m. 12.2 ppb (11) 5.0 ppb (5) N/A 7.0 ppb (6) N/A N/A 10.0 ppb (8) N/A 17.0 μg/m3 (15) 11.0 μg/m3 (46) 46.0
 
Jan. 23, 2020, 6 p.m. 15.0 ppb (14) 6.9 ppb (6) N/A 8.0 ppb (7) N/A N/A 7.0 ppb (5) N/A 21.0 μg/m3 (19) 9.0 μg/m3 (38) 38.0
 
Jan. 23, 2020, 5 p.m. 19.7 ppb (18) 10.3 ppb (10) N/A 9.0 ppb (8) N/A N/A 4.0 ppb (3) N/A 17.0 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
Jan. 23, 2020, 4 p.m. 24.9 ppb (23) 15.0 ppb (14) N/A 10.0 ppb (9) N/A N/A 2.0 ppb (2) N/A 11.0 μg/m3 (10) 7.0 μg/m3 (29) 29.0
 
Jan. 23, 2020, 3 p.m. 25.8 ppb (24) 14.2 ppb (13) N/A 12.0 ppb (11) N/A N/A 1.0 ppb (1) N/A 13.0 μg/m3 (12) 6.0 μg/m3 (25) 25.0
 
Jan. 23, 2020, 2 p.m. 17.6 ppb (16) 7.6 ppb (7) N/A 10.0 ppb (9) N/A N/A 2.0 ppb (2) N/A 4.0 μg/m3 (4) 6.0 μg/m3 (25) 25.0
 
Jan. 23, 2020, 1 p.m. 8.7 ppb (8) 2.6 ppb (2) N/A 6.0 ppb (6) N/A N/A 6.0 ppb (5) N/A 5.0 μg/m3 (5) 5.0 μg/m3 (21) 21.0
 
Jan. 23, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 6.0 μg/m3 (25) 25.0
 
Jan. 23, 2020, 11 a.m. 6.9 ppb (6) 1.8 ppb (2) N/A 5.0 ppb (5) N/A N/A 10.0 ppb (8) N/A 12.0 μg/m3 (11) 7.0 μg/m3 (29) 29.0
 
Jan. 23, 2020, 10 a.m. 11.3 ppb (10) 2.8 ppb (3) N/A 8.0 ppb (7) N/A N/A 8.0 ppb (6) N/A 13.0 μg/m3 (12) 10.0 μg/m3 (42) 42.0
 
Jan. 23, 2020, 9 a.m. 22.6 ppb (21) 10.4 ppb (10) N/A 12.0 ppb (11) N/A N/A 2.0 ppb (2) N/A 19.0 μg/m3 (17) 11.0 μg/m3 (46) 46.0
 
Jan. 23, 2020, 8 a.m. 31.6 ppb (29) 16.1 ppb (15) N/A 16.0 ppb (15) N/A N/A 1.0 ppb (1) N/A 22.0 μg/m3 (20) 14.0 μg/m3 (54) 54.0
 
Jan. 23, 2020, 7 a.m. 35.2 ppb (33) 16.2 ppb (15) N/A 19.0 ppb (18) N/A N/A 2.0 ppb (2) N/A 17.0 μg/m3 (15) 12.0 μg/m3 (50) 50.0
 
Jan. 23, 2020, 6 a.m. 27.9 ppb (26) 8.9 ppb (8) N/A 19.0 ppb (18) N/A N/A 8.0 ppb (6) N/A 11.0 μg/m3 (10) 9.0 μg/m3 (38) 38.0
 
Jan. 23, 2020, 5 a.m. 29.4 ppb (27) 6.3 ppb (6) N/A 23.0 ppb (21) N/A N/A 7.0 ppb (5) N/A 17.0 μg/m3 (15) 7.0 μg/m3 (29) 29.0
 
Jan. 23, 2020, 4 a.m. 39.4 ppb (36) 13.5 ppb (12) N/A 26.0 ppb (24) N/A N/A 4.0 ppb (3) N/A 19.0 μg/m3 (17) 7.0 μg/m3 (29) 36.0
 
Jan. 23, 2020, 3 a.m. 38.1 ppb (35) 11.7 ppb (11) N/A 26.0 ppb (24) N/A N/A 3.0 ppb (2) N/A 22.0 μg/m3 (20) 8.0 μg/m3 (33) 35.0
 
Jan. 23, 2020, 2 a.m. 30.7 ppb (28) 5.4 ppb (5) N/A 25.0 ppb (23) N/A N/A 10.0 ppb (8) N/A 19.0 μg/m3 (17) 7.0 μg/m3 (29) 29.0
 
Jan. 23, 2020, 1 a.m. 12.9 ppb (12) 1.2 ppb (1) N/A 12.0 ppb (11) N/A N/A 25.0 ppb (19) N/A 12.0 μg/m3 (11) 4.0 μg/m3 (17) 19.0
 
Jan. 23, 2020, midnight 8.7 ppb (8) 1.3 ppb (1) N/A 7.0 ppb (6) N/A N/A 30.0 ppb (23) N/A 9.0 μg/m3 (8) 3.0 μg/m3 (12) 23.0
 
Jan. 22, 2020, 11 p.m. 10.4 ppb (10) 2.3 ppb (2) N/A 8.0 ppb (7) N/A N/A 29.0 ppb (22) N/A 11.0 μg/m3 (10) 3.0 μg/m3 (12) 22.0
 
Jan. 22, 2020, 10 p.m. 7.8 ppb (7) 1.5 ppb (1) N/A 6.0 ppb (6) N/A N/A 48.0 ppb (37) N/A 9.0 μg/m3 (8) 3.0 μg/m3 (12) 37.0
 
Jan. 22, 2020, 9 p.m. 6.8 ppb (6) 1.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 27.0 ppb (21) N/A 8.0 μg/m3 (7) 2.0 μg/m3 (8) 21.0
 
Jan. 22, 2020, 8 p.m. 5.5 ppb (5) 1.3 ppb (1) N/A 4.0 ppb (4) N/A N/A 27.0 ppb (21) N/A N/A N/A 21.0
 
Jan. 22, 2020, 7 p.m. 4.6 ppb (4) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A 27.0 ppb (21) N/A 5.0 μg/m3 (5) 4.0 μg/m3 (17) 21.0
 
Jan. 22, 2020, 6 p.m. 5.3 ppb (5) 1.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 24.0 ppb (18) N/A 7.0 μg/m3 (6) 4.0 μg/m3 (17) 18.0
 
Jan. 22, 2020, 5 p.m. 5.8 ppb (5) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 21.0 ppb (16) N/A 6.0 μg/m3 (5) 2.0 μg/m3 (8) 16.0
 
Jan. 22, 2020, 4 p.m. 8.6 ppb (8) 1.6 ppb (1) N/A 7.0 ppb (6) N/A N/A 19.0 ppb (15) N/A 3.0 μg/m3 (3) 3.0 μg/m3 (12) 15.0
 
Jan. 22, 2020, 3 p.m. 7.6 ppb (7) 1.0 ppb (1) N/A 7.0 ppb (6) N/A N/A 19.0 ppb (15) N/A 3.0 μg/m3 (3) 4.0 μg/m3 (17) 17.0
 
Jan. 22, 2020, 2 p.m. 7.0 ppb (6) 1.3 ppb (1) N/A 6.0 ppb (6) N/A N/A 21.0 ppb (16) N/A 2.0 μg/m3 (2) 3.0 μg/m3 (12) 16.0
 
Jan. 22, 2020, 1 p.m. 7.9 ppb (7) 2.9 ppb (3) N/A 5.0 ppb (5) N/A N/A 21.0 ppb (16) N/A 0.0 μg/m3 (0) 2.0 μg/m3 (8) 16.0
 
Jan. 22, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 3.0 μg/m3 (12) 12.0
 
Jan. 22, 2020, 11 a.m. 2.7 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 23.0 ppb (18) N/A 4.0 μg/m3 (4) 3.0 μg/m3 (12) 18.0
 
Jan. 22, 2020, 10 a.m. 2.7 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 23.0 ppb (18) N/A 6.0 μg/m3 (5) 5.0 μg/m3 (21) 21.0
 
Jan. 22, 2020, 9 a.m. 2.4 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 24.0 ppb (18) N/A 4.0 μg/m3 (4) 8.0 μg/m3 (33) 33.0
 
Jan. 22, 2020, 8 a.m. 2.9 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 25.0 ppb (19) N/A 2.0 μg/m3 (2) 4.0 μg/m3 (17) 19.0
 
Jan. 22, 2020, 7 a.m. 2.2 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 28.0 ppb (22) N/A 2.0 μg/m3 (2) 2.0 μg/m3 (8) 22.0
 
Jan. 22, 2020, 6 a.m. 2.3 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (23) N/A 5.0 μg/m3 (5) 3.0 μg/m3 (12) 23.0
 
Jan. 22, 2020, 5 a.m. 4.4 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A N/A 28.0 ppb (22) N/A 6.0 μg/m3 (5) 4.0 μg/m3 (17) 22.0
 
Jan. 22, 2020, 4 a.m. 5.5 ppb (5) 0.7 ppb (1) N/A 5.0 ppb (5) N/A N/A 26.0 ppb (20) N/A 8.0 μg/m3 (7) 6.0 μg/m3 (25) 25.0
 
Jan. 22, 2020, 3 a.m. 4.5 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 25.0 ppb (19) N/A 8.0 μg/m3 (7) 4.0 μg/m3 (17) 19.0
 
Jan. 22, 2020, 2 a.m. 5.6 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 24.0 ppb (18) N/A 2.0 μg/m3 (2) 2.0 μg/m3 (8) 18.0
 
Jan. 22, 2020, 1 a.m. 10.3 ppb (10) 2.9 ppb (3) N/A 7.0 ppb (6) N/A N/A 24.0 ppb (18) N/A 3.0 μg/m3 (3) 2.0 μg/m3 (8) 18.0
 
Jan. 22, 2020, midnight 15.2 ppb (14) 5.8 ppb (5) N/A 9.0 ppb (8) N/A N/A 25.0 ppb (19) N/A 4.0 μg/m3 (4) 2.0 μg/m3 (8) 19.0
 
Jan. 21, 2020, 11 p.m. 6.0 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 28.0 ppb (22) N/A 3.0 μg/m3 (3) 3.0 μg/m3 (12) 22.0
 
Jan. 21, 2020, 10 p.m. 6.6 ppb (6) 1.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 25.0 ppb (19) N/A 6.0 μg/m3 (5) 4.0 μg/m3 (17) 19.0
 
Jan. 21, 2020, 9 p.m. 10.1 ppb (9) 2.5 ppb (2) N/A 8.0 ppb (7) N/A N/A 19.0 ppb (15) N/A 11.0 μg/m3 (10) 3.0 μg/m3 (12) 15.0
 
Jan. 21, 2020, 8 p.m. 11.3 ppb (10) 2.9 ppb (3) N/A 8.0 ppb (7) N/A N/A 16.0 ppb (12) N/A 10.0 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
Jan. 21, 2020, 7 p.m. 11.6 ppb (11) 2.6 ppb (2) N/A 9.0 ppb (8) N/A N/A 13.0 ppb (10) N/A 15.0 μg/m3 (14) 9.0 μg/m3 (38) 38.0
 
Jan. 21, 2020, 6 p.m. 12.3 ppb (11) 3.7 ppb (3) N/A 9.0 ppb (8) N/A N/A 13.0 ppb (10) N/A 16.0 μg/m3 (15) 7.0 μg/m3 (29) 29.0
 
Jan. 21, 2020, 5 p.m. 18.3 ppb (17) 7.5 ppb (7) N/A 11.0 ppb (10) N/A N/A 14.0 ppb (11) N/A 13.0 μg/m3 (12) 6.0 μg/m3 (25) 25.0
 
Jan. 21, 2020, 4 p.m. 33.2 ppb (31) 17.9 ppb (17) N/A 15.0 ppb (14) N/A N/A 14.0 ppb (11) N/A 10.0 μg/m3 (9) 8.0 μg/m3 (33) 33.0
 
Jan. 21, 2020, 3 p.m. 35.5 ppb (33) 18.2 ppb (17) N/A 18.0 ppb (17) N/A N/A 13.0 ppb (10) N/A 13.0 μg/m3 (12) 10.0 μg/m3 (42) 42.0
 
Jan. 21, 2020, 2 p.m. 35.1 ppb (32) 17.9 ppb (17) N/A 18.0 ppb (17) N/A N/A 12.0 ppb (9) N/A 15.0 μg/m3 (14) 8.0 μg/m3 (33) 33.0
 
Jan. 21, 2020, 1 p.m. 33.7 ppb (31) 17.5 ppb (16) N/A 16.0 ppb (15) N/A N/A 11.0 ppb (8) N/A 18.0 μg/m3 (16) 15.0 μg/m3 (56) 56.0
 
Jan. 21, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (23) 16.0 μg/m3 (59) 59.0
 
Jan. 21, 2020, 11 a.m. 36.8 ppb (34) 22.5 ppb (21) N/A 14.0 ppb (13) N/A N/A 1.0 ppb (1) N/A 25.0 μg/m3 (23) 17.0 μg/m3 (61) 61.0
 
Jan. 21, 2020, 10 a.m. 38.8 ppb (36) 24.4 ppb (23) N/A 15.0 ppb (14) N/A N/A 1.0 ppb (1) N/A 27.0 μg/m3 (25) 21.0 μg/m3 (69) 69.0
 
Jan. 21, 2020, 9 a.m. 41.6 ppb (39) 27.4 ppb (25) N/A 14.0 ppb (13) N/A N/A 2.0 ppb (2) N/A 25.0 μg/m3 (23) 19.0 μg/m3 (65) 65.0
 
Jan. 21, 2020, 8 a.m. 29.5 ppb (27) 15.6 ppb (14) N/A 14.0 ppb (13) N/A N/A 1.0 ppb (1) N/A 28.0 μg/m3 (25) 23.0 μg/m3 (73) 73.0
 
Jan. 21, 2020, 7 a.m. 55.5 ppb (52) 39.4 ppb (36) N/A 16.0 ppb (15) N/A N/A 1.0 ppb (1) N/A 29.0 μg/m3 (26) 22.0 μg/m3 (71) 71.0
 
Jan. 21, 2020, 6 a.m. 65.4 ppb (62) 45.9 ppb (42) N/A 20.0 ppb (19) N/A N/A 1.0 ppb (1) N/A 26.0 μg/m3 (24) 18.0 μg/m3 (63) 63.0
 
Jan. 21, 2020, 5 a.m. 48.1 ppb (45) 30.0 ppb (28) N/A 18.0 ppb (17) N/A N/A 1.0 ppb (1) N/A 29.0 μg/m3 (26) 20.0 μg/m3 (67) 67.0
 
Jan. 21, 2020, 4 a.m. 53.4 ppb (49) 34.5 ppb (32) N/A 19.0 ppb (18) N/A N/A 2.0 ppb (2) N/A 29.0 μg/m3 (26) 18.0 μg/m3 (63) 63.0
 
Jan. 21, 2020, 3 a.m. 43.4 ppb (40) 28.2 ppb (26) N/A 15.0 ppb (14) N/A N/A 5.0 ppb (4) N/A 18.0 μg/m3 (16) 17.0 μg/m3 (61) 61.0
 
Jan. 21, 2020, 2 a.m. 40.6 ppb (38) 26.4 ppb (24) N/A 14.0 ppb (13) N/A N/A 4.0 ppb (3) N/A 28.0 μg/m3 (25) 16.0 μg/m3 (59) 59.0
 
Jan. 21, 2020, 1 a.m. 44.4 ppb (41) 29.3 ppb (27) N/A 15.0 ppb (14) N/A N/A 3.0 ppb (2) N/A 25.0 μg/m3 (23) 15.0 μg/m3 (56) 56.0
 
Jan. 21, 2020, midnight 33.6 ppb (31) 18.3 ppb (17) N/A 15.0 ppb (14) N/A N/A 4.0 ppb (3) N/A 30.0 μg/m3 (27) 22.0 μg/m3 (71) 71.0
 
Jan. 20, 2020, 11 p.m. 17.7 ppb (16) 7.4 ppb (7) N/A 10.0 ppb (9) N/A N/A 4.0 ppb (3) N/A 35.0 μg/m3 (32) 19.0 μg/m3 (65) 65.0
 
Jan. 20, 2020, 10 p.m. 21.9 ppb (20) 10.5 ppb (10) N/A 11.0 ppb (10) N/A N/A 4.0 ppb (3) N/A 32.0 μg/m3 (29) 20.0 μg/m3 (67) 67.0
 
Jan. 20, 2020, 9 p.m. 19.8 ppb (18) 9.6 ppb (9) N/A 10.0 ppb (9) N/A N/A 4.0 ppb (3) N/A 28.0 μg/m3 (25) 23.0 μg/m3 (73) 73.0
 
Jan. 20, 2020, 8 p.m. 16.5 ppb (15) 7.7 ppb (7) N/A 9.0 ppb (8) N/A N/A 5.0 ppb (4) N/A 26.0 μg/m3 (24) 18.0 μg/m3 (63) 63.0
 
Jan. 20, 2020, 7 p.m. 14.3 ppb (13) 6.9 ppb (6) N/A 7.0 ppb (6) N/A N/A 4.0 ppb (3) N/A 22.0 μg/m3 (20) 19.0 μg/m3 (65) 65.0
 
Jan. 20, 2020, 6 p.m. 11.2 ppb (10) 5.1 ppb (5) N/A 6.0 ppb (6) N/A N/A 5.0 ppb (4) N/A 21.0 μg/m3 (19) 13.0 μg/m3 (52) 52.0
 
Jan. 20, 2020, 5 p.m. 13.0 ppb (12) 6.6 ppb (6) N/A 6.0 ppb (6) N/A N/A 4.0 ppb (3) N/A 22.0 μg/m3 (20) 17.0 μg/m3 (61) 61.0
 
Jan. 20, 2020, 4 p.m. 16.5 ppb (15) 8.1 ppb (8) N/A 8.0 ppb (7) N/A N/A 3.0 ppb (2) N/A 23.0 μg/m3 (21) 12.0 μg/m3 (50) 50.0
 
Jan. 20, 2020, 3 p.m. 14.8 ppb (14) 5.7 ppb (5) N/A 9.0 ppb (8) N/A N/A 2.0 ppb (2) N/A 24.0 μg/m3 (22) 13.0 μg/m3 (52) 52.0
 
Jan. 20, 2020, 2 p.m. 10.5 ppb (10) 4.0 ppb (4) N/A 7.0 ppb (6) N/A N/A 4.0 ppb (3) N/A 22.0 μg/m3 (20) 17.0 μg/m3 (61) 61.0
 
Jan. 20, 2020, 1 p.m. 12.6 ppb (12) 5.4 ppb (5) N/A 7.0 ppb (6) N/A N/A 3.0 ppb (2) N/A 20.0 μg/m3 (18) 14.0 μg/m3 (54) 54.0
 
Jan. 20, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (23) 18.0 μg/m3 (63) 63.0
 
Jan. 20, 2020, 11 a.m. 17.5 ppb (16) 6.2 ppb (6) N/A 11.0 ppb (10) N/A N/A 1.0 ppb (1) N/A 27.0 μg/m3 (25) 23.0 μg/m3 (73) 73.0
 
Jan. 20, 2020, 10 a.m. 19.3 ppb (18) 8.4 ppb (8) N/A 11.0 ppb (10) N/A N/A 1.0 ppb (1) N/A 30.0 μg/m3 (27) 23.0 μg/m3 (73) 73.0
 
Jan. 20, 2020, 9 a.m. 21.1 ppb (20) 10.2 ppb (9) N/A 11.0 ppb (10) N/A N/A 0.0 ppb (0) N/A 28.0 μg/m3 (25) 24.0 μg/m3 (76) 76.0
 
Jan. 20, 2020, 8 a.m. 22.6 ppb (21) 11.1 ppb (10) N/A 12.0 ppb (11) N/A N/A 1.0 ppb (1) N/A 41.0 μg/m3 (37) 27.0 μg/m3 (82) 82.0
 
Jan. 20, 2020, 7 a.m. 22.3 ppb (21) 10.5 ppb (10) N/A 12.0 ppb (11) N/A N/A 1.0 ppb (1) N/A 41.0 μg/m3 (37) 36.0 μg/m3 (101) 101.0
 
Jan. 20, 2020, 6 a.m. 23.0 ppb (21) 11.5 ppb (11) N/A 12.0 ppb (11) N/A N/A 1.0 ppb (1) N/A 32.0 μg/m3 (29) 26.0 μg/m3 (80) 80.0
 
Jan. 20, 2020, 5 a.m. 24.3 ppb (23) 11.0 ppb (10) N/A 13.0 ppb (12) N/A N/A 1.0 ppb (1) N/A 35.0 μg/m3 (32) 26.0 μg/m3 (80) 80.0
 
Jan. 20, 2020, 4 a.m. 36.8 ppb (34) 21.7 ppb (20) N/A 15.0 ppb (14) N/A N/A 1.0 ppb (1) N/A 45.0 μg/m3 (41) 31.0 μg/m3 (90) 90.0
 
Jan. 20, 2020, 3 a.m. 29.3 ppb (27) 12.3 ppb (11) N/A 17.0 ppb (16) N/A N/A 2.0 ppb (2) N/A 43.0 μg/m3 (39) 29.0 μg/m3 (86) 86.0
 
Jan. 20, 2020, 2 a.m. 17.9 ppb (17) 5.5 ppb (5) N/A 13.0 ppb (12) N/A N/A 5.0 ppb (4) N/A 27.0 μg/m3 (25) 20.0 μg/m3 (67) 67.0
 
Jan. 20, 2020, 1 a.m. 10.9 ppb (10) 2.5 ppb (2) N/A 8.0 ppb (7) N/A N/A 10.0 ppb (8) N/A 18.0 μg/m3 (16) 12.0 μg/m3 (50) 50.0
 
Jan. 20, 2020, midnight 10.0 ppb (9) 2.8 ppb (3) N/A 7.0 ppb (6) N/A N/A 12.0 ppb (9) N/A 16.0 μg/m3 (15) 11.0 μg/m3 (46) 46.0
 
Jan. 19, 2020, 11 p.m. 9.4 ppb (9) 2.9 ppb (3) N/A 7.0 ppb (6) N/A N/A 11.0 ppb (8) N/A 15.0 μg/m3 (14) 12.0 μg/m3 (50) 50.0
 
Jan. 19, 2020, 10 p.m. 9.4 ppb (9) 3.1 ppb (3) N/A 6.0 ppb (6) N/A N/A 11.0 ppb (8) N/A 15.0 μg/m3 (14) 15.0 μg/m3 (56) 56.0
 
Jan. 19, 2020, 9 p.m. 11.7 ppb (11) 4.7 ppb (4) N/A 7.0 ppb (6) N/A N/A 9.0 ppb (7) N/A 19.0 μg/m3 (17) 14.0 μg/m3 (54) 54.0
 
Jan. 19, 2020, 8 p.m. 16.9 ppb (16) 9.2 ppb (9) N/A 8.0 ppb (7) N/A N/A 8.0 ppb (6) N/A 17.0 μg/m3 (15) 12.0 μg/m3 (50) 50.0
 
Jan. 19, 2020, 7 p.m. 24.5 ppb (23) 15.2 ppb (14) N/A 9.0 ppb (8) N/A N/A 6.0 ppb (5) N/A 14.0 μg/m3 (13) 15.0 μg/m3 (56) 56.0
 
Jan. 19, 2020, 6 p.m. 36.5 ppb (34) 25.6 ppb (24) N/A 11.0 ppb (10) N/A N/A 5.0 ppb (4) N/A 11.0 μg/m3 (10) 9.0 μg/m3 (38) 38.0
 
Jan. 19, 2020, 5 p.m. 35.0 ppb (32) 24.1 ppb (22) N/A 11.0 ppb (10) N/A N/A 4.0 ppb (3) N/A 15.0 μg/m3 (14) 9.0 μg/m3 (38) 38.0
 
Jan. 19, 2020, 4 p.m. 31.0 ppb (29) 19.8 ppb (18) N/A 11.0 ppb (10) N/A N/A 4.0 ppb (3) N/A 14.0 μg/m3 (13) 11.0 μg/m3 (46) 46.0
 
Jan. 19, 2020, 3 p.m. 15.8 ppb (15) 6.1 ppb (6) N/A 10.0 ppb (9) N/A N/A 3.0 ppb (2) N/A 20.0 μg/m3 (18) 12.0 μg/m3 (50) 50.0
 
Jan. 19, 2020, 2 p.m. 21.6 ppb (20) 10.4 ppb (10) N/A 11.0 ppb (10) N/A N/A 1.0 ppb (1) N/A 17.0 μg/m3 (15) 13.0 μg/m3 (52) 52.0
 
Jan. 19, 2020, 1 p.m. 23.0 ppb (21) 11.5 ppb (11) N/A 12.0 ppb (11) N/A N/A 1.0 ppb (1) N/A 18.0 μg/m3 (16) 11.0 μg/m3 (46) 46.0
 
Jan. 19, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 14.0 μg/m3 (54) 54.0
 
Jan. 19, 2020, 11 a.m. 14.0 ppb (13) 2.9 ppb (3) N/A 11.0 ppb (10) N/A N/A 5.0 ppb (4) N/A 18.0 μg/m3 (16) 17.0 μg/m3 (61) 61.0
 
Jan. 19, 2020, 10 a.m. 16.3 ppb (15) 3.2 ppb (3) N/A 13.0 ppb (12) N/A N/A 5.0 ppb (4) N/A 19.0 μg/m3 (17) 18.0 μg/m3 (63) 63.0
 
Jan. 19, 2020, 9 a.m. 13.2 ppb (12) 3.5 ppb (3) N/A 10.0 ppb (9) N/A N/A 7.0 ppb (5) N/A 13.0 μg/m3 (12) 15.0 μg/m3 (56) 56.0
 
Jan. 19, 2020, 8 a.m. 13.8 ppb (13) 2.5 ppb (2) N/A 11.0 ppb (10) N/A N/A 8.0 ppb (6) N/A 17.0 μg/m3 (15) 12.0 μg/m3 (50) 50.0
 
Jan. 19, 2020, 7 a.m. 23.3 ppb (22) 5.1 ppb (5) N/A 18.0 ppb (17) N/A N/A 4.0 ppb (3) N/A 34.0 μg/m3 (31) 22.0 μg/m3 (71) 71.0
 
Jan. 19, 2020, 6 a.m. 20.7 ppb (19) 3.5 ppb (3) N/A 17.0 ppb (16) N/A N/A 8.0 ppb (6) N/A 23.0 μg/m3 (21) 10.0 μg/m3 (42) 42.0
 
Jan. 19, 2020, 5 a.m. 11.6 ppb (11) 2.1 ppb (2) N/A 10.0 ppb (9) N/A N/A 20.0 ppb (15) N/A 7.0 μg/m3 (6) 3.0 μg/m3 (12) 15.0
 
Jan. 19, 2020, 4 a.m. 7.7 ppb (7) 1.2 ppb (1) N/A 6.0 ppb (6) N/A N/A 26.0 ppb (20) N/A 8.0 μg/m3 (7) 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2020, 3 a.m. 13.3 ppb (12) 2.7 ppb (3) N/A 11.0 ppb (10) N/A N/A 22.0 ppb (17) N/A 19.0 μg/m3 (17) 9.0 μg/m3 (38) 38.0
 
Jan. 19, 2020, 2 a.m. 11.3 ppb (10) 2.1 ppb (2) N/A 9.0 ppb (8) N/A N/A 22.0 ppb (17) N/A 9.0 μg/m3 (8) 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2020, 1 a.m. 7.9 ppb (7) 1.1 ppb (1) N/A 7.0 ppb (6) N/A N/A 26.0 ppb (20) N/A 6.0 μg/m3 (5) 4.0 μg/m3 (17) 20.0
 
Jan. 19, 2020, midnight 4.7 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 28.0 ppb (22) N/A 7.0 μg/m3 (6) 5.0 μg/m3 (21) 22.0
 
Jan. 18, 2020, 11 p.m. 4.2 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 29.0 ppb (22) N/A 7.0 μg/m3 (6) 0.0 μg/m3 (0) 22.0
 
Jan. 18, 2020, 10 p.m. 4.4 ppb (4) 1.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 27.0 ppb (21) N/A 7.0 μg/m3 (6) 1.0 μg/m3 (4) 21.0