AQSQID: 060210003

Site Name: Willows-Colusa

Location: Willows (E Co Rd 49 1/2), CA

Reporting: True, Located: True

Current AQI: 16.0

Willows (E Co Rd 49 1/2) CA, US: 39.53387, -122.190834

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 18, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 3.0 μg/m3 (3) 3.0 μg/m3 (12) 16.0
 
Jan. 18, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 2.0 μg/m3 (2) 5.0 μg/m3 (21) 21.0
 
Jan. 18, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 19.0 μg/m3 (17) 7.0 μg/m3 (29) 29.0
 
Jan. 18, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 6.0 μg/m3 (5) 5.0 μg/m3 (21) 21.0
 
Jan. 18, 2020, midnight N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 4.0 μg/m3 (4) 3.0 μg/m3 (12) 24.0
 
Jan. 17, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 3.0 μg/m3 (12) 12.0
 
Jan. 17, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 9.0 μg/m3 (38) 38.0
 
Jan. 17, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 10.0 μg/m3 (42) 42.0
 
Jan. 17, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 9.0 μg/m3 (38) 38.0
 
Jan. 17, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 10.0 μg/m3 (42) 42.0
 
Jan. 17, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 6.0 μg/m3 (5) 10.0 μg/m3 (42) 42.0
 
Jan. 17, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 7.0 μg/m3 (6) 9.0 μg/m3 (38) 38.0
 
Jan. 17, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 5.0 μg/m3 (5) 13.0 μg/m3 (52) 52.0
 
Jan. 17, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A 5.0 μg/m3 (5) 8.0 μg/m3 (33) 33.0
 
Jan. 17, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) N/A 6.0 μg/m3 (5) 10.0 μg/m3 (42) 42.0
 
Jan. 17, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 9.0 μg/m3 (38) 38.0
 
Jan. 17, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A 4.0 μg/m3 (4) 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A 4.0 μg/m3 (4) 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A 7.0 μg/m3 (6) 9.0 μg/m3 (38) 38.0
 
Jan. 17, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 8.0 μg/m3 (7) 9.0 μg/m3 (38) 38.0
 
Jan. 17, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 6.0 μg/m3 (5) 5.0 μg/m3 (21) 21.0
 
Jan. 17, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 3.0 μg/m3 (3) 3.0 μg/m3 (12) 22.0
 
Jan. 17, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 3.0 μg/m3 (3) 4.0 μg/m3 (17) 23.0
 
Jan. 17, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 2.0 μg/m3 (2) 6.0 μg/m3 (25) 27.0
 
Jan. 17, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 3.0 μg/m3 (3) 3.0 μg/m3 (12) 28.0
 
Jan. 17, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 3.0 μg/m3 (3) 4.0 μg/m3 (17) 29.0
 
Jan. 17, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 1.0 μg/m3 (1) 4.0 μg/m3 (17) 33.0
 
Jan. 17, 2020, midnight N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 2.0 μg/m3 (2) 5.0 μg/m3 (21) 34.0
 
Jan. 16, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 1.0 μg/m3 (1) 3.0 μg/m3 (12) 32.0
 
Jan. 16, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 0.0 μg/m3 (0) 5.0 μg/m3 (21) 34.0
 
Jan. 16, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 3.0 μg/m3 (3) 6.0 μg/m3 (25) 33.0
 
Jan. 16, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 4.0 μg/m3 (4) 3.0 μg/m3 (12) 32.0
 
Jan. 16, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 6.0 μg/m3 (5) 5.0 μg/m3 (21) 30.0
 
Jan. 16, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 8.0 μg/m3 (7) 5.0 μg/m3 (21) 25.0
 
Jan. 16, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 12.0 μg/m3 (11) 4.0 μg/m3 (17) 20.0
 
Jan. 16, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 9.0 μg/m3 (8) 7.0 μg/m3 (29) 29.0
 
Jan. 16, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 11.0 μg/m3 (10) 10.0 μg/m3 (42) 42.0
 
Jan. 16, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 7.0 μg/m3 (6) 6.0 μg/m3 (25) 26.0
 
Jan. 16, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 9.0 μg/m3 (8) 6.0 μg/m3 (25) 28.0
 
Jan. 16, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 7.0 μg/m3 (29) 29.0
 
Jan. 16, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 10.0 μg/m3 (9) 8.0 μg/m3 (33) 33.0
 
Jan. 16, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 13.0 μg/m3 (12) 10.0 μg/m3 (42) 42.0
 
Jan. 16, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 12.0 μg/m3 (11) 11.0 μg/m3 (46) 46.0
 
Jan. 16, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 12.0 μg/m3 (11) 9.0 μg/m3 (38) 38.0
 
Jan. 16, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 14.0 μg/m3 (13) 9.0 μg/m3 (38) 38.0
 
Jan. 16, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 8.0 μg/m3 (7) 9.0 μg/m3 (38) 38.0
 
Jan. 16, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 8.0 μg/m3 (7) 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 8.0 μg/m3 (7) 7.0 μg/m3 (29) 29.0
 
Jan. 16, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 7.0 μg/m3 (6) 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 8.0 μg/m3 (7) 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 8.0 μg/m3 (7) 9.0 μg/m3 (38) 38.0
 
Jan. 16, 2020, midnight N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 15.0 μg/m3 (14) 9.0 μg/m3 (38) 38.0
 
Jan. 15, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 11.0 μg/m3 (10) N/A 21.0
 
Jan. 15, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 12.0 μg/m3 (11) 11.0 μg/m3 (46) 46.0
 
Jan. 15, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 15.0 μg/m3 (14) 11.0 μg/m3 (46) 46.0
 
Jan. 15, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 10.0 μg/m3 (9) 11.0 μg/m3 (46) 46.0
 
Jan. 15, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 8.0 μg/m3 (7) 9.0 μg/m3 (38) 38.0
 
Jan. 15, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 11.0 μg/m3 (10) 9.0 μg/m3 (38) 38.0
 
Jan. 15, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A 5.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
Jan. 15, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A 29.0 μg/m3 (26) 23.0 μg/m3 (73) 73.0
 
Jan. 15, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) N/A 12.0 μg/m3 (11) 9.0 μg/m3 (38) 38.0
 
Jan. 15, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A 9.0 μg/m3 (8) 6.0 μg/m3 (25) 25.0
 
Jan. 15, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A 8.0 μg/m3 (7) 2.0 μg/m3 (8) 8.0
 
Jan. 15, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) N/A 5.0 μg/m3 (5) 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A 3.0 μg/m3 (3) 4.0 μg/m3 (17) 17.0
 
Jan. 15, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 6.0 μg/m3 (5) 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A 11.0 μg/m3 (10) 8.0 μg/m3 (33) 33.0
 
Jan. 15, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A 11.0 μg/m3 (10) 12.0 μg/m3 (50) 50.0
 
Jan. 15, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 3.0 μg/m3 (3) 4.0 μg/m3 (17) 17.0
 
Jan. 15, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 4.0 μg/m3 (4) 6.0 μg/m3 (25) 25.0
 
Jan. 15, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 5.0 μg/m3 (5) 7.0 μg/m3 (29) 29.0
 
Jan. 15, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 6.0 μg/m3 (5) 5.0 μg/m3 (21) 26.0
 
Jan. 15, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 6.0 μg/m3 (5) 5.0 μg/m3 (21) 23.0
 
Jan. 15, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 6.0 μg/m3 (5) 2.0 μg/m3 (8) 25.0
 
Jan. 15, 2020, midnight N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 5.0 μg/m3 (5) 2.0 μg/m3 (8) 28.0
 
Jan. 14, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 2.0 μg/m3 (2) 2.0 μg/m3 (8) 32.0
 
Jan. 14, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 2.0 μg/m3 (2) 1.0 μg/m3 (4) 31.0
 
Jan. 14, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 2.0 μg/m3 (2) 1.0 μg/m3 (4) 31.0
 
Jan. 14, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 1.0 μg/m3 (1) 2.0 μg/m3 (8) 31.0
 
Jan. 14, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 3.0 μg/m3 (3) 4.0 μg/m3 (17) 28.0
 
Jan. 14, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 3.0 μg/m3 (3) 5.0 μg/m3 (21) 25.0
 
Jan. 14, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 4.0 μg/m3 (4) 5.0 μg/m3 (21) 22.0
 
Jan. 14, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 19.0 μg/m3 (17) 6.0 μg/m3 (25) 25.0
 
Jan. 14, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 3.0 μg/m3 (3) 4.0 μg/m3 (17) 19.0
 
Jan. 14, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 0.0 μg/m3 (0) 0.0 μg/m3 (0) 26.0
 
Jan. 14, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 0.0 μg/m3 (0) 2.0 μg/m3 (8) 28.0
 
Jan. 14, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) 3.0 μg/m3 (12) 12.0
 
Jan. 14, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 1.0 μg/m3 (1) 4.0 μg/m3 (17) 24.0
 
Jan. 14, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 3.0 μg/m3 (3) 4.0 μg/m3 (17) 28.0
 
Jan. 14, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 3.0 μg/m3 (3) 3.0 μg/m3 (12) 28.0
 
Jan. 14, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 0.0 μg/m3 (0) 5.0 μg/m3 (21) 28.0
 
Jan. 14, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 0.0 μg/m3 (0) 4.0 μg/m3 (17) 29.0
 
Jan. 14, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 3.0 μg/m3 (3) 1.0 μg/m3 (4) 30.0
 
Jan. 14, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 5.0 μg/m3 (5) 3.0 μg/m3 (12) 31.0
 
Jan. 14, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 0.0 μg/m3 (0) 3.0 μg/m3 (12) 32.0
 
Jan. 14, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 2.0 μg/m3 (2) 2.0 μg/m3 (8) 32.0
 
Jan. 14, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 2.0 μg/m3 (2) 3.0 μg/m3 (12) 32.0
 
Jan. 14, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 0.0 μg/m3 (0) 1.0 μg/m3 (4) 32.0
 
Jan. 14, 2020, midnight N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 0.0 μg/m3 (0) 2.0 μg/m3 (8) 32.0
 
Jan. 13, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 4.0 μg/m3 (4) 4.0 μg/m3 (17) 29.0
 
Jan. 13, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 8.0 μg/m3 (7) 6.0 μg/m3 (25) 28.0
 
Jan. 13, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 4.0 μg/m3 (4) 8.0 μg/m3 (33) 33.0
 
Jan. 13, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 6.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
Jan. 13, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 5.0 μg/m3 (5) 8.0 μg/m3 (33) 33.0
 
Jan. 13, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 4.0 μg/m3 (4) 7.0 μg/m3 (29) 29.0
 
Jan. 13, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 5.0 μg/m3 (5) 9.0 μg/m3 (38) 38.0
 
Jan. 13, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 9.0 μg/m3 (8) 9.0 μg/m3 (38) 38.0
 
Jan. 13, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A 6.0 μg/m3 (5) 9.0 μg/m3 (38) 38.0
 
Jan. 13, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 5.0 μg/m3 (5) 7.0 μg/m3 (29) 29.0
 
Jan. 13, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A 5.0 μg/m3 (5) 9.0 μg/m3 (38) 38.0
 
Jan. 13, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 5.0 μg/m3 (21) 21.0
 
Jan. 13, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A 5.0 μg/m3 (5) 5.0 μg/m3 (21) 21.0
 
Jan. 13, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 6.0 μg/m3 (5) 4.0 μg/m3 (17) 17.0
 
Jan. 13, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 9.0 μg/m3 (8) 4.0 μg/m3 (17) 17.0
 
Jan. 13, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 3.0 μg/m3 (3) 5.0 μg/m3 (21) 21.0
 
Jan. 13, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 3.0 μg/m3 (3) 5.0 μg/m3 (21) 21.0
 
Jan. 13, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 5.0 μg/m3 (5) 5.0 μg/m3 (21) 22.0
 
Jan. 13, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 1.0 μg/m3 (1) 4.0 μg/m3 (17) 22.0
 
Jan. 13, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 1.0 μg/m3 (1) 4.0 μg/m3 (17) 22.0
 
Jan. 13, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 1.0 μg/m3 (1) 4.0 μg/m3 (17) 20.0
 
Jan. 13, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 2.0 μg/m3 (2) 5.0 μg/m3 (21) 22.0
 
Jan. 13, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 5.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
Jan. 13, 2020, midnight N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 5.0 μg/m3 (5) 8.0 μg/m3 (33) 33.0
 
Jan. 12, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 7.0 μg/m3 (6) 8.0 μg/m3 (33) 33.0
 
Jan. 12, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 10.0 μg/m3 (9) 7.0 μg/m3 (29) 29.0
 
Jan. 12, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 9.0 μg/m3 (8) 11.0 μg/m3 (46) 46.0
 
Jan. 12, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 4.0 μg/m3 (4) 11.0 μg/m3 (46) 46.0
 
Jan. 12, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 5.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
Jan. 12, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 5.0 μg/m3 (5) 8.0 μg/m3 (33) 33.0
 
Jan. 12, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 7.0 μg/m3 (6) 7.0 μg/m3 (29) 29.0
 
Jan. 12, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A 9.0 μg/m3 (8) 8.0 μg/m3 (33) 33.0
 
Jan. 12, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A 7.0 μg/m3 (6) 6.0 μg/m3 (25) 25.0
 
Jan. 12, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A 3.0 μg/m3 (3) 4.0 μg/m3 (17) 17.0
 
Jan. 12, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 5.0 μg/m3 (5) 2.0 μg/m3 (8) 10.0
 
Jan. 12, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) 3.0 μg/m3 (12) 12.0
 
Jan. 12, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 3.0 μg/m3 (3) 6.0 μg/m3 (25) 25.0
 
Jan. 12, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 5.0 μg/m3 (5) 8.0 μg/m3 (33) 33.0
 
Jan. 12, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 5.0 μg/m3 (5) 5.0 μg/m3 (21) 21.0
 
Jan. 12, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 4.0 μg/m3 (4) 4.0 μg/m3 (17) 17.0
 
Jan. 12, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A 7.0 μg/m3 (6) 7.0 μg/m3 (29) 29.0
 
Jan. 12, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 12.0 μg/m3 (11) 11.0 μg/m3 (46) 46.0
 
Jan. 12, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 6.0 μg/m3 (5) 9.0 μg/m3 (38) 38.0
 
Jan. 12, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 9.0 μg/m3 (8) 8.0 μg/m3 (33) 33.0
 
Jan. 12, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 11.0 μg/m3 (10) 13.0 μg/m3 (52) 52.0
 
Jan. 12, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 15.0 μg/m3 (14) 10.0 μg/m3 (42) 42.0
 
Jan. 12, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 13.0 μg/m3 (12) 12.0 μg/m3 (50) 50.0
 
Jan. 12, 2020, midnight N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 10.0 μg/m3 (9) 11.0 μg/m3 (46) 46.0
 
Jan. 11, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 10.0 μg/m3 (9) 13.0 μg/m3 (52) 52.0
 
Jan. 11, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 9.0 μg/m3 (8) 16.0 μg/m3 (59) 59.0
 
Jan. 11, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 11.0 μg/m3 (10) 9.0 μg/m3 (38) 38.0
 
Jan. 11, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 8.0 μg/m3 (7) 12.0 μg/m3 (50) 50.0
 
Jan. 11, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 5.0 μg/m3 (5) 7.0 μg/m3 (29) 29.0
 
Jan. 11, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 7.0 μg/m3 (6) 10.0 μg/m3 (42) 42.0
 
Jan. 11, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 7.0 μg/m3 (6) 7.0 μg/m3 (29) 29.0
 
Jan. 11, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 5.0 μg/m3 (5) 7.0 μg/m3 (29) 29.0
 
Jan. 11, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 6.0 μg/m3 (5) 12.0 μg/m3 (50) 50.0
 
Jan. 11, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 8.0 μg/m3 (7) 9.0 μg/m3 (38) 38.0
 
Jan. 11, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 6.0 μg/m3 (5) 13.0 μg/m3 (52) 52.0
 
Jan. 11, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 7.0 μg/m3 (29) 29.0
 
Jan. 11, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 8.0 μg/m3 (7) 7.0 μg/m3 (29) 29.0
 
Jan. 11, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 7.0 μg/m3 (6) 6.0 μg/m3 (25) 25.0
 
Jan. 11, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 8.0 μg/m3 (7) 6.0 μg/m3 (25) 25.0
 
Jan. 11, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 5.0 μg/m3 (5) 10.0 μg/m3 (42) 42.0
 
Jan. 11, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 9.0 μg/m3 (8) 11.0 μg/m3 (46) 46.0
 
Jan. 11, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 9.0 μg/m3 (8) 13.0 μg/m3 (52) 52.0
 
Jan. 11, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 7.0 μg/m3 (6) 9.0 μg/m3 (38) 38.0