ID: 2385

AQSQID: 060210003

Site Name: Willows-Colusa

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

Updated: April 20, 2021, 9:43 a.m.

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

Reporting: True, Located: True

Current AQI: 64.0

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
April 20, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A 34.2 μg/m3 (32) 18.0 μg/m3 (64) 64.0
 
April 20, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A 32.1 μg/m3 (30) 10.0 μg/m3 (42) 42.0
 
April 20, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 35.9 μg/m3 (34) 7.0 μg/m3 (30) 34.0
 
April 20, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 41.7 μg/m3 (39) 6.0 μg/m3 (25) 39.0
 
April 20, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 49.6 μg/m3 (46) 8.0 μg/m3 (34) 46.0
 
April 20, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 109.6 μg/m3 (79) 14.0 μg/m3 (55) 79.0
 
April 20, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 17.0 μg/m3 (62) 62.0
 
April 20, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 52.0 μg/m3 (49) 6.0 μg/m3 (25) 49.0
 
April 20, 2021, midnight N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A 59.0 μg/m3 (53) 5.0 μg/m3 (21) 53.0
 
April 19, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 84.8 μg/m3 (66) 6.0 μg/m3 (25) 66.0
 
April 19, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 114.4 μg/m3 (81) 9.0 μg/m3 (38) 81.0
 
April 19, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 112.4 μg/m3 (80) 8.0 μg/m3 (34) 80.0
 
April 19, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 74.0 μg/m3 (61) 8.0 μg/m3 (34) 61.0
 
April 19, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 56.8 μg/m3 (52) 10.0 μg/m3 (42) 52.0
 
April 19, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 85.0 μg/m3 (66) 14.0 μg/m3 (55) 66.0
 
April 19, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 63.6 μg/m3 (56) 16.0 μg/m3 (60) 60.0
 
April 19, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 58.2 μg/m3 (53) 17.0 μg/m3 (62) 62.0
 
April 19, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A 25.1 μg/m3 (24) 4.0 μg/m3 (17) 24.0
 
April 19, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A 41.9 μg/m3 (39) 7.0 μg/m3 (30) 39.0
 
April 19, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 58.6 μg/m3 (53) 7.0 μg/m3 (30) 53.0
 
April 19, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 17.7 μg/m3 (17) 5.0 μg/m3 (21) 21.0
 
April 19, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) N/A 17.2 μg/m3 (16) 7.0 μg/m3 (30) 30.0
 
April 19, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) N/A 14.0 μg/m3 (13) 7.0 μg/m3 (30) 30.0
 
April 19, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A 10.9 μg/m3 (11) 7.0 μg/m3 (30) 30.0
 
April 19, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) N/A 13.0 μg/m3 (13) 6.0 μg/m3 (25) 25.0
 
April 19, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) N/A 16.8 μg/m3 (16) 3.0 μg/m3 (13) 16.0
 
April 19, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) N/A 16.1 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
April 19, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A 28.9 μg/m3 (27) 11.0 μg/m3 (46) 46.0
 
April 19, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A 48.6 μg/m3 (45) 11.0 μg/m3 (46) 46.0
 
April 19, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 21.2 μg/m3 (20) 10.0 μg/m3 (42) 42.0
 
April 19, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 6.4 μg/m3 (6) 5.0 μg/m3 (21) 30.0
 
April 19, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 2.4 μg/m3 (3) 1.0 μg/m3 (5) 39.0
 
April 19, 2021, midnight N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 5.1 μg/m3 (5) -3.0 μg/m3 (0) 40.0
 
April 18, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 7.2 μg/m3 (7) -3.0 μg/m3 (0) 41.0
 
April 18, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 3.0 μg/m3 (3) -2.0 μg/m3 (0) 38.0
 
April 18, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 5.5 μg/m3 (6) -1.0 μg/m3 (0) 38.0
 
April 18, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 6.4 μg/m3 (6) 1.0 μg/m3 (5) 38.0
 
April 18, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 8.2 μg/m3 (8) 1.0 μg/m3 (5) 38.0
 
April 18, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 8.7 μg/m3 (9) -1.0 μg/m3 (0) 35.0
 
April 18, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 9.9 μg/m3 (10) -1.0 μg/m3 (0) 32.0
 
April 18, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 8.9 μg/m3 (9) 3.0 μg/m3 (13) 29.0
 
April 18, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 19.2 μg/m3 (18) 5.0 μg/m3 (21) 23.0
 
April 18, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A 13.4 μg/m3 (13) 4.0 μg/m3 (17) 18.0
 
April 18, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 6.6 μg/m3 (7) -1.0 μg/m3 (0) 17.0
 
April 18, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 8.3 μg/m3 (8) 1.0 μg/m3 (5) 8.0
 
April 18, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A 6.9 μg/m3 (7) 0.0 μg/m3 (0) 18.0
 
April 18, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 8.4 μg/m3 (8) 3.0 μg/m3 (13) 17.0
 
April 18, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 8.3 μg/m3 (8) 6.0 μg/m3 (25) 25.0
 
April 18, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 8.6 μg/m3 (8) 6.0 μg/m3 (25) 25.0
 
April 18, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 11.1 μg/m3 (11) 3.0 μg/m3 (13) 22.0
 
April 18, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 12.3 μg/m3 (12) 2.0 μg/m3 (9) 17.0
 
April 18, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 17.5 μg/m3 (17) 4.0 μg/m3 (17) 23.0
 
April 18, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 11.9 μg/m3 (12) 6.0 μg/m3 (25) 27.0
 
April 18, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 10.1 μg/m3 (10) 7.0 μg/m3 (30) 30.0
 
April 18, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 14.0 μg/m3 (13) 7.0 μg/m3 (30) 37.0
 
April 18, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 14.5 μg/m3 (14) 1.0 μg/m3 (5) 38.0
 
April 18, 2021, midnight N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 9.2 μg/m3 (9) 0.0 μg/m3 (0) 40.0
 
April 17, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 8.2 μg/m3 (8) 0.0 μg/m3 (0) 40.0
 
April 17, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 9.2 μg/m3 (9) 1.0 μg/m3 (5) 40.0
 
April 17, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 10.3 μg/m3 (10) 2.0 μg/m3 (9) 40.0
 
April 17, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 10.8 μg/m3 (10) -1.0 μg/m3 (0) 41.0
 
April 17, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 10.2 μg/m3 (10) -1.0 μg/m3 (0) 40.0
 
April 17, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 4.3 μg/m3 (4) -2.0 μg/m3 (0) 38.0
 
April 17, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 15.4 μg/m3 (15) -3.0 μg/m3 (0) 36.0
 
April 17, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 17.6 μg/m3 (17) 1.0 μg/m3 (5) 33.0
 
April 17, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 27.2 μg/m3 (26) 4.0 μg/m3 (17) 29.0
 
April 17, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 16.0 μg/m3 (15) 5.0 μg/m3 (21) 24.0
 
April 17, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 10.2 μg/m3 (10) 2.0 μg/m3 (9) 19.0
 
April 17, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 10.4 μg/m3 (10) 3.0 μg/m3 (13) 13.0
 
April 17, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 10.6 μg/m3 (10) 5.0 μg/m3 (21) 24.0
 
April 17, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A 8.6 μg/m3 (8) 6.0 μg/m3 (25) 25.0
 
April 17, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A 11.6 μg/m3 (11) 8.0 μg/m3 (34) 34.0
 
April 17, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A 13.6 μg/m3 (13) 7.0 μg/m3 (30) 30.0
 
April 17, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 14.9 μg/m3 (14) 4.0 μg/m3 (17) 19.0
 
April 17, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 16.5 μg/m3 (16) 5.0 μg/m3 (21) 25.0
 
April 17, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 5.9 μg/m3 (6) 9.0 μg/m3 (38) 38.0
 
April 17, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 19.7 μg/m3 (19) 10.0 μg/m3 (42) 42.0
 
April 17, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 25.4 μg/m3 (24) 5.0 μg/m3 (21) 27.0
 
April 17, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 15.5 μg/m3 (15) 3.0 μg/m3 (13) 33.0
 
April 17, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 18.3 μg/m3 (17) 3.0 μg/m3 (13) 38.0
 
April 17, 2021, midnight N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 18.6 μg/m3 (18) 6.0 μg/m3 (25) 38.0
 
April 16, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 26.9 μg/m3 (25) 8.0 μg/m3 (34) 38.0
 
April 16, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 33.9 μg/m3 (32) 8.0 μg/m3 (34) 38.0
 
April 16, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 18.9 μg/m3 (18) 5.0 μg/m3 (21) 38.0
 
April 16, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 17.7 μg/m3 (17) 5.0 μg/m3 (21) 38.0
 
April 16, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 23.5 μg/m3 (22) 5.0 μg/m3 (21) 36.0
 
April 16, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 31.9 μg/m3 (30) 4.0 μg/m3 (17) 36.0
 
April 16, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 31.2 μg/m3 (29) 5.0 μg/m3 (21) 34.0
 
April 16, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 29.1 μg/m3 (27) 5.0 μg/m3 (21) 28.0
 
April 16, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 31.9 μg/m3 (30) 8.0 μg/m3 (34) 34.0
 
April 16, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A 36.8 μg/m3 (35) 8.0 μg/m3 (34) 35.0
 
April 16, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) N/A 41.1 μg/m3 (39) 5.0 μg/m3 (21) 39.0
 
April 16, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 35.5 μg/m3 (33) 8.0 μg/m3 (34) 34.0
 
April 16, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A 40.1 μg/m3 (38) 7.0 μg/m3 (30) 38.0
 
April 16, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A 40.1 μg/m3 (38) 9.0 μg/m3 (38) 38.0
 
April 16, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A 48.9 μg/m3 (46) 10.0 μg/m3 (42) 46.0
 
April 16, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A 40.7 μg/m3 (38) 14.0 μg/m3 (55) 55.0
 
April 16, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) N/A 45.8 μg/m3 (43) 10.0 μg/m3 (42) 43.0
 
April 16, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) N/A 47.3 μg/m3 (44) 8.0 μg/m3 (34) 44.0
 
April 16, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) N/A 70.1 μg/m3 (59) 11.0 μg/m3 (46) 59.0
 
April 16, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 66.3 μg/m3 (57) 16.0 μg/m3 (60) 60.0
 
April 16, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 52.7 μg/m3 (49) 9.0 μg/m3 (38) 49.0
 
April 16, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 69.7 μg/m3 (59) 7.0 μg/m3 (30) 59.0
 
April 16, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 55.8 μg/m3 (52) 6.0 μg/m3 (25) 52.0
 
April 16, 2021, midnight N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 46.1 μg/m3 (43) 9.0 μg/m3 (38) 43.0
 
April 15, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 60.3 μg/m3 (54) 8.0 μg/m3 (34) 54.0
 
April 15, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 72.1 μg/m3 (60) 8.0 μg/m3 (34) 60.0
 
April 15, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 112.3 μg/m3 (80) 10.0 μg/m3 (42) 80.0
 
April 15, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 116.0 μg/m3 (82) 12.0 μg/m3 (50) 82.0
 
April 15, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 101.1 μg/m3 (74) 7.0 μg/m3 (30) 74.0
 
April 15, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 83.0 μg/m3 (65) 6.0 μg/m3 (25) 65.0
 
April 15, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 87.2 μg/m3 (67) 7.0 μg/m3 (30) 67.0
 
April 15, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 23.9 μg/m3 (23) 11.0 μg/m3 (46) 46.0
 
April 15, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 25.0 μg/m3 (24) 9.0 μg/m3 (38) 38.0
 
April 15, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A 26.4 μg/m3 (25) 10.0 μg/m3 (42) 42.0
 
April 15, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 35.4 μg/m3 (33) 11.0 μg/m3 (46) 46.0
 
April 15, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 23.2 μg/m3 (22) 4.0 μg/m3 (17) 22.0
 
April 15, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A 19.1 μg/m3 (18) 5.0 μg/m3 (21) 21.0
 
April 15, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) N/A 22.9 μg/m3 (22) 7.0 μg/m3 (30) 30.0
 
April 15, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A 25.3 μg/m3 (24) 9.0 μg/m3 (38) 38.0
 
April 15, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 16.4 μg/m3 (16) 8.0 μg/m3 (34) 34.0
 
April 15, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 24.8 μg/m3 (23) 7.0 μg/m3 (30) 30.0
 
April 15, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 27.7 μg/m3 (26) 5.0 μg/m3 (21) 29.0
 
April 15, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 54.5 μg/m3 (51) 5.0 μg/m3 (21) 51.0
 
April 15, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 21.3 μg/m3 (20) 4.0 μg/m3 (17) 28.0
 
April 15, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 16.8 μg/m3 (16) 3.0 μg/m3 (13) 34.0
 
April 15, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 56.7 μg/m3 (52) 3.0 μg/m3 (13) 52.0
 
April 15, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 51.3 μg/m3 (48) 3.0 μg/m3 (13) 48.0
 
April 15, 2021, midnight N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 24.0 μg/m3 (23) 4.0 μg/m3 (17) 40.0
 
April 14, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 13.2 μg/m3 (13) 3.0 μg/m3 (13) 39.0
 
April 14, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 14.3 μg/m3 (14) 3.0 μg/m3 (13) 38.0
 
April 14, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 12.5 μg/m3 (12) 2.0 μg/m3 (9) 38.0
 
April 14, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 12.9 μg/m3 (12) 1.0 μg/m3 (5) 38.0
 
April 14, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 31.5 μg/m3 (30) 3.0 μg/m3 (13) 38.0
 
April 14, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 24.3 μg/m3 (23) 3.0 μg/m3 (13) 37.0
 
April 14, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 23.8 μg/m3 (23) 4.0 μg/m3 (17) 35.0
 
April 14, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 12.2 μg/m3 (12) 2.0 μg/m3 (9) 35.0
 
April 14, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 20.5 μg/m3 (19) 5.0 μg/m3 (21) 34.0
 
April 14, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 16.7 μg/m3 (16) 7.0 μg/m3 (30) 33.0
 
April 14, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 11.4 μg/m3 (11) 7.0 μg/m3 (30) 34.0
 
April 14, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 11.4 μg/m3 (11) 3.0 μg/m3 (13) 13.0
 
April 14, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 16.4 μg/m3 (16) 1.0 μg/m3 (5) 36.0
 
April 14, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 21.8 μg/m3 (21) 4.0 μg/m3 (17) 36.0
 
April 14, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 51.5 μg/m3 (48) 8.0 μg/m3 (34) 48.0
 
April 14, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 60.0 μg/m3 (54) 18.0 μg/m3 (64) 64.0
 
April 14, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 47.4 μg/m3 (44) 8.0 μg/m3 (34) 44.0
 
April 14, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 38.6 μg/m3 (36) 5.0 μg/m3 (21) 37.0
 
April 14, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 25.2 μg/m3 (24) 4.0 μg/m3 (17) 38.0
 
April 14, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 16.7 μg/m3 (16) 3.0 μg/m3 (13) 40.0
 
April 14, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 28.7 μg/m3 (27) 4.0 μg/m3 (17) 42.0
 
April 14, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 22.4 μg/m3 (21) 3.0 μg/m3 (13) 42.0
 
April 14, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 19.5 μg/m3 (19) 5.0 μg/m3 (21) 42.0
 
April 14, 2021, midnight N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 16.9 μg/m3 (16) 3.0 μg/m3 (13) 43.0
 
April 13, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 14.0 μg/m3 (13) 1.0 μg/m3 (5) 44.0
 
April 13, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 18.2 μg/m3 (17) 2.0 μg/m3 (9) 43.0
 
April 13, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 37.0 μg/m3 (35) 0.0 μg/m3 (0) 40.0
 
April 13, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 20.7 μg/m3 (20) 1.0 μg/m3 (5) 39.0
 
April 13, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 22.3 μg/m3 (21) 1.0 μg/m3 (5) 38.0
 
April 13, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 47.8 μg/m3 (45) 2.0 μg/m3 (9) 45.0
 
April 13, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 58.4 μg/m3 (53) 5.0 μg/m3 (21) 53.0
 
April 13, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 23.7 μg/m3 (22) 9.0 μg/m3 (38) 38.0
 
April 13, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 32.6 μg/m3 (31) 15.0 μg/m3 (58) 58.0
 
April 13, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A 39.1 μg/m3 (37) 9.0 μg/m3 (38) 38.0
 
April 13, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) N/A 20.6 μg/m3 (20) 12.0 μg/m3 (50) 50.0
 
April 13, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 18.5 μg/m3 (18) 9.0 μg/m3 (38) 38.0
 
April 13, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A 19.9 μg/m3 (19) 8.0 μg/m3 (34) 34.0
 
April 13, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A 21.1 μg/m3 (20) 6.0 μg/m3 (25) 25.0
 
April 13, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A 19.3 μg/m3 (18) 8.0 μg/m3 (34) 34.0