ID: 232

AQSQID: 060950004

Site Name: Vallejo

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

Updated: April 21, 2021, 8:44 p.m.

Location: Vallejo (Florida-Hilton), CA

Reporting: True, Located: True

Current AQI: 58.0

Vallejo (Florida-Hilton) CA, US: 38.102507, -122.237976

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
April 21, 2021, 7 p.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
 
April 21, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (60) 60.0
 
April 21, 2021, 5 p.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
 
April 21, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
April 21, 2021, 3 p.m. 8.2 ppb (8) 2.3 ppb (3) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 30.0 ppb (28) 0.21 ppb (3) N/A 16.0 μg/m3 (60) 60.0
 
April 21, 2021, 2 p.m. 8.1 ppb (8) 1.7 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 29.0 ppb (27) 0.23 ppb (3) N/A 14.0 μg/m3 (55) 55.0
 
April 21, 2021, 1 p.m. 5.0 ppb (5) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 30.0 ppb (28) 0.2 ppb (3) N/A 15.0 μg/m3 (58) 58.0
 
April 21, 2021, noon 4.8 ppb (5) 1.2 ppb (2) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (28) 0.19 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
April 21, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (60) 60.0
 
April 21, 2021, 10 a.m. 3.1 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 29.0 ppb (27) 0.18 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
April 21, 2021, 9 a.m. 3.6 ppb (4) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 29.0 ppb (27) 0.18 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
April 21, 2021, 8 a.m. 3.1 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 30.0 ppb (28) 0.19 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
April 21, 2021, 7 a.m. 3.5 ppb (4) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 30.0 ppb (28) 0.2 ppb (3) N/A 13.0 μg/m3 (53) 53.0
 
April 21, 2021, 6 a.m. 5.0 ppb (5) 1.1 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 30.0 ppb (28) 0.2 ppb (3) N/A 15.0 μg/m3 (58) 58.0
 
April 21, 2021, 5 a.m. 4.6 ppb (5) 0.1 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 29.0 ppb (27) 0.21 ppb (3) N/A 15.0 μg/m3 (58) 58.0
 
April 21, 2021, 4 a.m. 3.9 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 30.0 ppb (28) 0.19 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
April 21, 2021, 3 a.m. 2.3 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 32.0 ppb (30) 0.19 ppb (3) N/A 15.0 μg/m3 (58) 58.0
 
April 21, 2021, 2 a.m. 2.1 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 33.0 ppb (31) 0.15 ppb (2) N/A 11.0 μg/m3 (46) 46.0
 
April 21, 2021, 1 a.m. 1.5 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 33.0 ppb (31) 0.14 ppb (2) N/A 14.0 μg/m3 (55) 55.0
 
April 21, 2021, midnight 1.9 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 32.0 ppb (30) 0.13 ppb (2) N/A 6.0 μg/m3 (25) 30.0
 
April 20, 2021, 11 p.m. 1.7 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 31.0 ppb (29) 0.14 ppb (2) N/A N/A 29.0
 
April 20, 2021, 10 p.m. 1.9 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 31.0 ppb (29) 0.14 ppb (2) N/A 8.0 μg/m3 (34) 34.0
 
April 20, 2021, 9 p.m. 2.3 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 32.0 ppb (30) 0.14 ppb (2) N/A 6.0 μg/m3 (25) 30.0
 
April 20, 2021, 8 p.m. 5.2 ppb (5) 1.8 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 34.0 ppb (32) 0.17 ppb (3) N/A 7.0 μg/m3 (30) 32.0
 
April 20, 2021, 7 p.m. 6.1 ppb (6) 2.2 ppb (3) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 31.0 ppb (29) 0.18 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
April 20, 2021, 6 p.m. 6.5 ppb (7) 2.4 ppb (3) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 29.0 ppb (27) 0.19 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
April 20, 2021, 5 p.m. 7.9 ppb (8) 3.0 ppb (3) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 27.0 ppb (25) 0.19 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
April 20, 2021, 4 p.m. 9.1 ppb (9) 2.9 ppb (3) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 25.0 ppb (24) 0.2 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
April 20, 2021, 3 p.m. 9.0 ppb (9) 2.5 ppb (3) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 24.0 ppb (23) 0.21 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
April 20, 2021, 2 p.m. 9.1 ppb (9) 1.6 ppb (2) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 22.0 ppb (21) 0.21 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
April 20, 2021, 1 p.m. 6.6 ppb (7) 0.6 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 24.0 ppb (23) 0.19 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
April 20, 2021, noon 5.5 ppb (6) 0.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 24.0 ppb (23) 0.18 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
April 20, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
April 20, 2021, 10 a.m. 2.6 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 29.0 ppb (27) 0.17 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
April 20, 2021, 9 a.m. 2.9 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 31.0 ppb (29) 0.17 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
April 20, 2021, 8 a.m. 2.6 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 33.0 ppb (31) 0.18 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
April 20, 2021, 7 a.m. 4.5 ppb (5) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 29.0 ppb (27) 0.19 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
April 20, 2021, 6 a.m. 4.7 ppb (5) 0.1 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 29.0 ppb (27) 0.2 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
April 20, 2021, 5 a.m. 5.8 ppb (6) 0.1 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 30.0 ppb (28) 0.21 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
April 20, 2021, 4 a.m. 7.6 ppb (8) 0.1 ppb (1) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 31.0 ppb (29) 0.21 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
April 20, 2021, 3 a.m. 5.4 ppb (6) 0.6 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 35.0 ppb (33) 0.2 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
April 20, 2021, 2 a.m. 4.7 ppb (5) 0.5 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 38.0 ppb (36) 0.17 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
April 20, 2021, 1 a.m. 5.5 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 40.0 ppb (38) 0.15 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
April 20, 2021, midnight 4.2 ppb (4) 1.1 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 40.0 ppb (38) 0.15 ppb (2) N/A 12.0 μg/m3 (50) 50.0
 
April 19, 2021, 11 p.m. 5.1 ppb (5) 1.2 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 41.0 ppb (38) 0.16 ppb (3) N/A 14.0 μg/m3 (55) 55.0
 
April 19, 2021, 10 p.m. 5.1 ppb (5) 1.7 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 42.0 ppb (39) 0.16 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
April 19, 2021, 9 p.m. 4.7 ppb (5) 1.2 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 42.0 ppb (39) 0.18 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
April 19, 2021, 8 p.m. 4.4 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 42.0 ppb (39) 0.2 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
April 19, 2021, 7 p.m. 4.6 ppb (5) 1.1 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 41.0 ppb (38) 0.21 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
April 19, 2021, 6 p.m. 6.4 ppb (7) 1.7 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 39.0 ppb (37) 0.21 ppb (3) N/A 15.0 μg/m3 (58) 58.0
 
April 19, 2021, 5 p.m. 7.1 ppb (7) 2.1 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 38.0 ppb (36) 0.23 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
April 19, 2021, 4 p.m. 6.2 ppb (6) 1.6 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 38.0 ppb (36) 0.22 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
April 19, 2021, 3 p.m. 5.2 ppb (5) 1.2 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 38.0 ppb (36) 0.21 ppb (3) N/A 8.0 μg/m3 (34) 36.0
 
April 19, 2021, 2 p.m. 4.3 ppb (5) 0.5 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 37.0 ppb (35) 0.2 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
April 19, 2021, 1 p.m. 3.5 ppb (4) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 37.0 ppb (35) 0.2 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
April 19, 2021, noon 4.4 ppb (5) 0.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 35.0 ppb (33) 0.19 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
April 19, 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
 
April 19, 2021, 10 a.m. 2.0 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 39.0 ppb (37) 0.2 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
April 19, 2021, 9 a.m. 2.1 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 40.0 ppb (38) 0.2 ppb (3) N/A 8.0 μg/m3 (34) 38.0
 
April 19, 2021, 8 a.m. 2.5 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 39.0 ppb (37) 0.21 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
April 19, 2021, 7 a.m. 2.2 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 40.0 ppb (38) 0.19 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
April 19, 2021, 6 a.m. 2.2 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 41.0 ppb (38) 0.18 ppb (3) N/A 6.0 μg/m3 (25) 38.0
 
April 19, 2021, 5 a.m. 3.8 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 40.0 ppb (38) 0.17 ppb (3) N/A 8.0 μg/m3 (34) 38.0
 
April 19, 2021, 4 a.m. 6.6 ppb (7) 0.1 ppb (1) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 36.0 ppb (34) 0.16 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
April 19, 2021, 3 a.m. 5.2 ppb (5) 0.1 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 38.0 ppb (36) 0.17 ppb (3) N/A 7.0 μg/m3 (30) 36.0
 
April 19, 2021, 2 a.m. 5.7 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 39.0 ppb (37) 0.14 ppb (2) N/A 7.0 μg/m3 (30) 37.0
 
April 19, 2021, 1 a.m. 5.2 ppb (5) 0.7 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 40.0 ppb (38) 0.14 ppb (2) N/A 8.0 μg/m3 (34) 38.0
 
April 19, 2021, midnight 4.4 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 43.0 ppb (40) 0.12 ppb (2) N/A 9.0 μg/m3 (38) 40.0
 
April 18, 2021, 11 p.m. 3.6 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 48.0 ppb (45) 0.13 ppb (2) N/A 8.0 μg/m3 (34) 45.0
 
April 18, 2021, 10 p.m. 5.0 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 48.0 ppb (45) 0.12 ppb (2) N/A 8.0 μg/m3 (34) 45.0
 
April 18, 2021, 9 p.m. 4.9 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 47.0 ppb (44) 0.1 ppb (2) N/A 4.0 μg/m3 (17) 44.0
 
April 18, 2021, 8 p.m. 2.3 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 46.0 ppb (43) 0.1 ppb (2) N/A 5.0 μg/m3 (21) 43.0
 
April 18, 2021, 7 p.m. 2.9 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 42.0 ppb (39) 0.13 ppb (2) N/A 4.0 μg/m3 (17) 39.0
 
April 18, 2021, 6 p.m. 3.0 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 38.0 ppb (36) 0.16 ppb (3) N/A 7.0 μg/m3 (30) 36.0
 
April 18, 2021, 5 p.m. 4.9 ppb (5) 1.3 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 33.0 ppb (31) 0.2 ppb (3) N/A 7.0 μg/m3 (30) 31.0
 
April 18, 2021, 4 p.m. 5.1 ppb (5) 1.4 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 27.0 ppb (25) 0.21 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
April 18, 2021, 3 p.m. 7.6 ppb (8) 2.6 ppb (3) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 22.0 ppb (21) 0.25 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
April 18, 2021, 2 p.m. 27.3 ppb (26) 12.4 ppb (12) N/A 15.0 ppb (15) N/A 1.0 ppb (2) 6.0 ppb (6) 0.53 ppb (6) N/A 7.0 μg/m3 (30) 30.0
 
April 18, 2021, 1 p.m. 23.7 ppb (23) 7.3 ppb (7) N/A 16.0 ppb (16) N/A 1.0 ppb (2) 1.0 ppb (1) 0.48 ppb (6) N/A 5.0 μg/m3 (21) 23.0
 
April 18, 2021, noon 21.7 ppb (21) 4.7 ppb (5) N/A 17.0 ppb (17) N/A 1.0 ppb (2) 1.0 ppb (1) 0.45 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
April 18, 2021, 11 a.m. 17.9 ppb (17) 2.1 ppb (2) N/A 16.0 ppb (16) N/A N/A 4.0 ppb (4) 0.42 ppb (5) N/A 13.0 μg/m3 (53) 53.0
 
April 18, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (30) 30.0
 
April 18, 2021, 9 a.m. 8.7 ppb (9) 0.2 ppb (1) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 17.0 ppb (16) 0.28 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
April 18, 2021, 8 a.m. 6.2 ppb (6) 0.2 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 23.0 ppb (22) 0.26 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
April 18, 2021, 7 a.m. 3.0 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 30.0 ppb (28) 0.23 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
April 18, 2021, 6 a.m. 3.0 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 33.0 ppb (31) 0.21 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
April 18, 2021, 5 a.m. 3.0 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 35.0 ppb (33) 0.18 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
April 18, 2021, 4 a.m. 2.6 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 37.0 ppb (35) 0.17 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
April 18, 2021, 3 a.m. 2.0 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 42.0 ppb (39) 0.15 ppb (2) N/A 7.0 μg/m3 (30) 39.0
 
April 18, 2021, 2 a.m. 2.7 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 42.0 ppb (39) 0.14 ppb (2) N/A 5.0 μg/m3 (21) 39.0
 
April 18, 2021, 1 a.m. 2.0 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 42.0 ppb (39) 0.12 ppb (2) N/A 7.0 μg/m3 (30) 39.0
 
April 18, 2021, midnight 2.9 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 40.0 ppb (38) 0.14 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
April 17, 2021, 11 p.m. 3.3 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 41.0 ppb (38) 0.17 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
April 17, 2021, 10 p.m. 3.7 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 41.0 ppb (38) 0.19 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
April 17, 2021, 9 p.m. 3.7 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 42.0 ppb (39) 0.2 ppb (3) N/A 7.0 μg/m3 (30) 39.0
 
April 17, 2021, 8 p.m. 3.8 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 41.0 ppb (38) 0.2 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
April 17, 2021, 7 p.m. 4.9 ppb (5) 1.3 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 39.0 ppb (37) 0.2 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
April 17, 2021, 6 p.m. 9.0 ppb (9) 2.9 ppb (3) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 34.0 ppb (32) 0.23 ppb (3) N/A 13.0 μg/m3 (53) 53.0
 
April 17, 2021, 5 p.m. 7.9 ppb (8) 2.5 ppb (3) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 32.0 ppb (30) 0.21 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
April 17, 2021, 4 p.m. 4.3 ppb (5) 1.2 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 32.0 ppb (30) 0.2 ppb (3) N/A 14.0 μg/m3 (55) 55.0
 
April 17, 2021, 3 p.m. 2.2 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 33.0 ppb (31) 0.19 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
April 17, 2021, 2 p.m. 2.3 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 32.0 ppb (30) 0.19 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
April 17, 2021, 1 p.m. 2.5 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 33.0 ppb (31) 0.18 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
April 17, 2021, noon 3.2 ppb (4) 0.2 ppb (1) N/A 3.0 ppb (3) N/A N/A 34.0 ppb (32) 0.18 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
April 17, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (34) 34.0
 
April 17, 2021, 10 a.m. -0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 0.0 ppb (0) N/A N/A 5.0 μg/m3 (21) 21.0
 
April 17, 2021, 9 a.m. -0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 0.0 ppb (0) N/A N/A 6.0 μg/m3 (25) 25.0
 
April 17, 2021, 8 a.m. -0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 0.0 ppb (0) N/A N/A 12.0 μg/m3 (50) 50.0
 
April 17, 2021, 7 a.m. -0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 11.0 μg/m3 (46) 46.0
 
April 17, 2021, 6 a.m. -0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 0.0 ppb (0) N/A N/A 9.0 μg/m3 (38) 38.0
 
April 17, 2021, 5 a.m. -0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 0.0 ppb (0) N/A N/A 7.0 μg/m3 (30) 30.0
 
April 17, 2021, 4 a.m. -0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 0.0 ppb (0) N/A N/A 8.0 μg/m3 (34) 34.0
 
April 17, 2021, 3 a.m. -0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 10.0 μg/m3 (42) 42.0
 
April 17, 2021, 2 a.m. -0.1 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 0.0 ppb (0) N/A N/A 12.0 μg/m3 (50) 50.0
 
April 17, 2021, 1 a.m. -0.1 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 0.0 ppb (0) N/A N/A 10.0 μg/m3 (42) 42.0
 
April 17, 2021, midnight -0.1 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 0.0 ppb (0) N/A N/A 10.0 μg/m3 (42) 42.0
 
April 16, 2021, 11 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 ppb (2) 0.0 ppb (0) N/A N/A 9.0 μg/m3 (38) 38.0
 
April 16, 2021, 10 p.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
 
April 16, 2021, 9 p.m. 4.6 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 43.0 ppb (40) 0.21 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
April 16, 2021, 8 p.m. 7.7 ppb (8) 2.9 ppb (3) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 41.0 ppb (38) 0.21 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
April 16, 2021, 7 p.m. 4.5 ppb (5) 1.4 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 40.0 ppb (38) 0.22 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
April 16, 2021, 6 p.m. 4.2 ppb (4) 1.1 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 39.0 ppb (37) 0.21 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
April 16, 2021, 5 p.m. 3.6 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 38.0 ppb (36) 0.21 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
April 16, 2021, 4 p.m. 2.3 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 38.0 ppb (36) 0.2 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
April 16, 2021, 3 p.m. 2.6 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 36.0 ppb (34) 0.22 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
April 16, 2021, 2 p.m. 4.0 ppb (4) 0.3 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 31.0 ppb (29) 0.23 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
April 16, 2021, 1 p.m. 3.9 ppb (4) 0.3 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 29.0 ppb (27) 0.22 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
April 16, 2021, noon 1.9 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (31) 0.19 ppb (3) N/A 4.0 μg/m3 (17) 31.0
 
April 16, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (30) 30.0
 
April 16, 2021, 10 a.m. 1.2 ppb (2) -0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 36.0 ppb (34) 0.19 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
April 16, 2021, 9 a.m. 0.8 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 37.0 ppb (35) 0.19 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
April 16, 2021, 8 a.m. 1.1 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 37.0 ppb (35) 0.2 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
April 16, 2021, 7 a.m. 0.8 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 38.0 ppb (36) 0.19 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
April 16, 2021, 6 a.m. 1.0 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 39.0 ppb (37) 0.2 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
April 16, 2021, 5 a.m. 1.4 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 39.0 ppb (37) 0.21 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
April 16, 2021, 4 a.m. 1.6 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 40.0 ppb (38) 0.22 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
April 16, 2021, 3 a.m. 3.5 ppb (4) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 42.0 ppb (39) 0.22 ppb (3) N/A 16.0 μg/m3 (60) 60.0
 
April 16, 2021, 2 a.m. 2.9 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 46.0 ppb (43) 0.2 ppb (3) N/A 9.0 μg/m3 (38) 43.0
 
April 16, 2021, 1 a.m. 3.3 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 47.0 ppb (44) 0.18 ppb (3) N/A 7.0 μg/m3 (30) 44.0
 
April 16, 2021, midnight 3.8 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 47.0 ppb (44) 0.17 ppb (3) N/A 8.0 μg/m3 (34) 44.0
 
April 15, 2021, 11 p.m. 4.5 ppb (5) 1.4 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 46.0 ppb (43) 0.17 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
April 15, 2021, 10 p.m. 4.4 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 47.0 ppb (44) 0.17 ppb (3) N/A 9.0 μg/m3 (38) 44.0
 
April 15, 2021, 9 p.m. 3.8 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 48.0 ppb (45) 0.18 ppb (3) N/A 9.0 μg/m3 (38) 45.0
 
April 15, 2021, 8 p.m. 3.1 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 48.0 ppb (45) 0.18 ppb (3) N/A 14.0 μg/m3 (55) 55.0
 
April 15, 2021, 7 p.m. 3.0 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 47.0 ppb (44) 0.18 ppb (3) N/A 9.0 μg/m3 (38) 44.0
 
April 15, 2021, 6 p.m. 3.7 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 43.0 ppb (40) 0.2 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
April 15, 2021, 5 p.m. 3.4 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 40.0 ppb (38) 0.21 ppb (3) N/A 15.0 μg/m3 (58) 58.0
 
April 15, 2021, 4 p.m. 3.2 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 37.0 ppb (35) 0.2 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
April 15, 2021, 3 p.m. 6.6 ppb (7) 1.8 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 34.0 ppb (32) 0.25 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
April 15, 2021, 2 p.m. 4.6 ppb (5) 0.4 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 32.0 ppb (30) 0.23 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
April 15, 2021, 1 p.m. 2.5 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 34.0 ppb (32) 0.21 ppb (3) N/A 6.0 μg/m3 (25) 32.0
 
April 15, 2021, noon 1.5 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (34) 0.2 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
April 15, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (53) 53.0
 
April 15, 2021, 10 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 39.0 ppb (37) 0.2 ppb (3) N/A 15.0 μg/m3 (58) 58.0
 
April 15, 2021, 9 a.m. 2.3 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 39.0 ppb (37) 0.2 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
April 15, 2021, 8 a.m. 1.4 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 39.0 ppb (37) 0.2 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
April 15, 2021, 7 a.m. 1.5 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 37.0 ppb (35) 0.21 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
April 15, 2021, 6 a.m. 1.3 ppb (2) -0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 38.0 ppb (36) 0.2 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
April 15, 2021, 5 a.m. 1.9 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 41.0 ppb (38) 0.22 ppb (3) N/A 17.0 μg/m3 (62) 62.0
 
April 15, 2021, 4 a.m. 4.6 ppb (5) 0.2 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 42.0 ppb (39) 0.24 ppb (3) N/A 14.0 μg/m3 (55) 55.0
 
April 15, 2021, 3 a.m. 6.1 ppb (6) 0.3 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 41.0 ppb (38) 0.24 ppb (3) N/A 13.0 μg/m3 (53) 53.0
 
April 15, 2021, 2 a.m. 6.5 ppb (7) 0.6 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 41.0 ppb (38) 0.21 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
April 15, 2021, 1 a.m. 4.9 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 44.0 ppb (41) 0.19 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
April 15, 2021, midnight 4.3 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 46.0 ppb (43) 0.19 ppb (3) N/A 15.0 μg/m3 (58) 58.0
 
April 14, 2021, 11 p.m. 4.4 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 47.0 ppb (44) 0.18 ppb (3) N/A 17.0 μg/m3 (62) 62.0
 
April 14, 2021, 10 p.m. 4.7 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 49.0 ppb (46) 0.19 ppb (3) N/A 17.0 μg/m3 (62) 62.0
 
April 14, 2021, 9 p.m. 3.9 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 48.0 ppb (45) 0.2 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
April 14, 2021, 8 p.m. 3.3 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 47.0 ppb (44) 0.18 ppb (3) N/A 7.0 μg/m3 (30) 44.0