ID: 1313

AQSQID: 060131004

Site Name: San Pablo - Rumrill

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

Updated: April 21, 2021, 7:45 p.m.

Location: San Pablo (Rumrill Blvd), CA

Reporting: True, Located: True

Current AQI: 66.0

San Pablo (Rumrill Blvd) CA, US: 37.9604, -122.3571

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
April 21, 2021, 7 p.m. 5.1 ppb (5) 1.9 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 37.0 ppb (35) 0.3 ppb (4) N/A 15.0 μg/m3 (58) 58.0
 
April 21, 2021, 6 p.m. 7.3 ppb (7) 3.5 ppb (4) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 35.0 ppb (33) 0.31 ppb (4) N/A 19.0 μg/m3 (66) 66.0
 
April 21, 2021, 5 p.m. 7.0 ppb (7) 2.3 ppb (3) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 34.0 ppb (32) 0.27 ppb (4) N/A 19.0 μg/m3 (66) 66.0
 
April 21, 2021, 4 p.m. 7.7 ppb (8) 2.4 ppb (3) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 33.0 ppb (31) 0.27 ppb (4) N/A 13.0 μg/m3 (53) 53.0
 
April 21, 2021, 3 p.m. 7.4 ppb (7) 1.9 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 32.0 ppb (30) 0.25 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
April 21, 2021, 2 p.m. 9.3 ppb (9) 1.4 ppb (2) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 30.0 ppb (28) 0.27 ppb (4) N/A 13.0 μg/m3 (53) 53.0
 
April 21, 2021, 1 p.m. 9.5 ppb (9) 1.3 ppb (2) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 29.0 ppb (27) 0.25 ppb (3) N/A 14.0 μg/m3 (55) 55.0
 
April 21, 2021, noon 6.8 ppb (7) 0.6 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 32.0 ppb (30) 0.21 ppb (3) N/A 14.0 μg/m3 (55) 55.0
 
April 21, 2021, 11 a.m. 6.5 ppb (7) 0.4 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 32.0 ppb (30) 0.2 ppb (3) N/A 17.0 μg/m3 (62) 62.0
 
April 21, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (62) 62.0
 
April 21, 2021, 9 a.m. 3.1 ppb (3) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 35.0 ppb (33) 0.2 ppb (3) N/A 17.0 μg/m3 (62) 62.0
 
April 21, 2021, 8 a.m. 5.3 ppb (5) 0.5 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 31.0 ppb (29) 0.21 ppb (3) N/A 14.0 μg/m3 (55) 55.0
 
April 21, 2021, 7 a.m. 3.3 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 33.0 ppb (31) 0.21 ppb (3) N/A 13.0 μg/m3 (53) 53.0
 
April 21, 2021, 6 a.m. 4.2 ppb (4) 0.5 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 33.0 ppb (31) 0.22 ppb (3) N/A 18.0 μg/m3 (64) 64.0
 
April 21, 2021, 5 a.m. 5.7 ppb (6) 0.7 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 31.0 ppb (29) 0.25 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
April 21, 2021, 4 a.m. 7.6 ppb (8) 1.1 ppb (2) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 30.0 ppb (28) 0.28 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
April 21, 2021, 3 a.m. 9.0 ppb (9) 2.9 ppb (3) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 29.0 ppb (27) 0.29 ppb (4) N/A 14.0 μg/m3 (55) 55.0
 
April 21, 2021, 2 a.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 34.0 ppb (32) 0.23 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
April 21, 2021, 1 a.m. 3.3 ppb (4) 1.5 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 35.0 ppb (33) 0.2 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
April 21, 2021, midnight 1.6 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 34.0 ppb (32) 0.2 ppb (3) N/A 7.0 μg/m3 (30) 32.0
 
April 20, 2021, 11 p.m. 2.5 ppb (3) 1.3 ppb (2) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 33.0 ppb (31) 0.19 ppb (3) N/A 4.0 μg/m3 (17) 31.0
 
April 20, 2021, 10 p.m. 2.6 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 32.0 ppb (30) 0.19 ppb (3) N/A 5.0 μg/m3 (21) 30.0
 
April 20, 2021, 9 p.m. 4.1 ppb (4) 1.7 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 32.0 ppb (30) 0.2 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
April 20, 2021, 8 p.m. 4.9 ppb (5) 1.8 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 36.0 ppb (34) 0.25 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
April 20, 2021, 7 p.m. 9.3 ppb (9) 3.7 ppb (4) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 31.0 ppb (29) 0.28 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
April 20, 2021, 6 p.m. 14.2 ppb (14) 6.1 ppb (6) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 27.0 ppb (25) 0.29 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
April 20, 2021, 5 p.m. 11.1 ppb (11) 4.7 ppb (5) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 27.0 ppb (25) 0.27 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
April 20, 2021, 4 p.m. 10.2 ppb (10) 3.9 ppb (4) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 26.0 ppb (25) 0.31 ppb (4) N/A 13.0 μg/m3 (53) 53.0
 
April 20, 2021, 3 p.m. 10.4 ppb (10) 3.3 ppb (4) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 25.0 ppb (24) 0.28 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
April 20, 2021, 2 p.m. 16.9 ppb (16) 4.4 ppb (5) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 18.0 ppb (17) 0.35 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
April 20, 2021, 1 p.m. 18.9 ppb (18) 7.0 ppb (7) N/A 12.0 ppb (12) N/A 1.0 ppb (2) 19.0 ppb (18) 0.31 ppb (4) N/A 8.0 μg/m3 (34) 34.0
 
April 20, 2021, noon 8.7 ppb (9) 1.1 ppb (2) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 22.0 ppb (21) 0.24 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
April 20, 2021, 11 a.m. 7.3 ppb (7) 0.6 ppb (1) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 22.0 ppb (21) 0.22 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
April 20, 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 20, 2021, 9 a.m. 4.0 ppb (4) 0.4 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 27.0 ppb (25) 0.19 ppb (3) N/A 5.0 μg/m3 (21) 25.0
 
April 20, 2021, 8 a.m. 4.9 ppb (5) 0.4 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, 7 a.m. 5.5 ppb (6) 0.4 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 29.0 ppb (27) 0.21 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
April 20, 2021, 6 a.m. 7.0 ppb (7) 0.6 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 27.0 ppb (25) 0.21 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
April 20, 2021, 5 a.m. 9.4 ppb (9) 0.8 ppb (1) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 26.0 ppb (25) 0.24 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
April 20, 2021, 4 a.m. 8.6 ppb (9) 0.8 ppb (1) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 30.0 ppb (28) 0.28 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
April 20, 2021, 3 a.m. 8.7 ppb (9) 1.2 ppb (2) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 34.0 ppb (32) 0.3 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
April 20, 2021, 2 a.m. 7.1 ppb (7) 1.9 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 38.0 ppb (36) 0.27 ppb (4) N/A 9.0 μg/m3 (38) 38.0
 
April 20, 2021, 1 a.m. 4.7 ppb (5) 1.6 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 40.0 ppb (38) 0.26 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
April 20, 2021, midnight 4.9 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 42.0 ppb (39) 0.26 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
April 19, 2021, 11 p.m. 5.0 ppb (5) 2.1 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 42.0 ppb (39) 0.26 ppb (4) N/A 9.0 μg/m3 (38) 39.0
 
April 19, 2021, 10 p.m. 6.1 ppb (6) 2.4 ppb (3) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 41.0 ppb (38) 0.28 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
April 19, 2021, 9 p.m. 5.7 ppb (6) 2.3 ppb (3) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 42.0 ppb (39) 0.26 ppb (4) N/A 15.0 μg/m3 (58) 58.0
 
April 19, 2021, 8 p.m. 5.1 ppb (5) 1.8 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 42.0 ppb (39) 0.28 ppb (4) N/A 12.0 μg/m3 (50) 50.0
 
April 19, 2021, 7 p.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 19, 2021, 6 p.m. 4.7 ppb (5) 1.9 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 41.0 ppb (38) 0.55 ppb (7) N/A N/A 38.0
 
April 19, 2021, 5 p.m. 6.5 ppb (7) 2.1 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 40.0 ppb (38) 0.55 ppb (7) N/A 12.0 μg/m3 (50) 50.0
 
April 19, 2021, 4 p.m. 7.5 ppb (8) 2.4 ppb (3) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 39.0 ppb (37) 0.57 ppb (7) N/A 10.0 μg/m3 (42) 42.0
 
April 19, 2021, 3 p.m. 7.4 ppb (7) 2.0 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 39.0 ppb (37) 0.58 ppb (7) N/A 7.0 μg/m3 (30) 37.0
 
April 19, 2021, 2 p.m. 6.0 ppb (6) 1.3 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 39.0 ppb (37) 0.54 ppb (6) N/A 8.0 μg/m3 (34) 37.0
 
April 19, 2021, 1 p.m. 5.3 ppb (5) 1.3 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 39.0 ppb (37) 0.53 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
April 19, 2021, noon 3.1 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 40.0 ppb (38) 0.5 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
April 19, 2021, 11 a.m. 2.3 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 41.0 ppb (38) 0.48 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
April 19, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
April 19, 2021, 9 a.m. 1.8 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 42.0 ppb (39) 0.47 ppb (6) N/A 5.0 μg/m3 (21) 39.0
 
April 19, 2021, 8 a.m. 1.2 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 44.0 ppb (41) 0.48 ppb (6) N/A 7.0 μg/m3 (30) 41.0
 
April 19, 2021, 7 a.m. 2.2 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 42.0 ppb (39) 0.48 ppb (6) N/A 9.0 μg/m3 (38) 39.0
 
April 19, 2021, 6 a.m. 2.3 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 43.0 ppb (40) 0.48 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
April 19, 2021, 5 a.m. 2.8 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 42.0 ppb (39) 0.49 ppb (6) N/A 9.0 μg/m3 (38) 39.0
 
April 19, 2021, 4 a.m. 3.5 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 42.0 ppb (39) 0.51 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
April 19, 2021, 3 a.m. 8.0 ppb (8) 1.1 ppb (2) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 39.0 ppb (37) 0.53 ppb (6) N/A 12.0 μg/m3 (50) 50.0
 
April 19, 2021, 2 a.m. 6.3 ppb (6) 0.9 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 39.0 ppb (37) 0.55 ppb (7) N/A 8.0 μg/m3 (34) 37.0
 
April 19, 2021, 1 a.m. 7.6 ppb (8) 1.8 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 38.0 ppb (36) 0.56 ppb (7) N/A 8.0 μg/m3 (34) 36.0
 
April 19, 2021, midnight 8.1 ppb (8) 2.5 ppb (3) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 36.0 ppb (34) 0.55 ppb (7) N/A 10.0 μg/m3 (42) 42.0
 
April 18, 2021, 11 p.m. 4.4 ppb (5) 1.6 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 36.0 ppb (34) 0.55 ppb (7) N/A 9.0 μg/m3 (38) 38.0
 
April 18, 2021, 10 p.m. 6.0 ppb (6) 1.9 ppb (2) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 41.0 ppb (38) 0.57 ppb (7) N/A 6.0 μg/m3 (25) 38.0
 
April 18, 2021, 9 p.m. 7.9 ppb (8) 2.4 ppb (3) N/A 6.0 ppb (6) N/A 2.0 ppb (3) 40.0 ppb (38) 0.58 ppb (7) N/A 9.0 μg/m3 (38) 38.0
 
April 18, 2021, 8 p.m. 16.2 ppb (16) 5.2 ppb (5) N/A 11.0 ppb (11) N/A 2.0 ppb (3) 35.0 ppb (33) 0.67 ppb (8) N/A 15.0 μg/m3 (58) 58.0
 
April 18, 2021, 7 p.m. 23.8 ppb (23) 8.5 ppb (9) N/A 15.0 ppb (15) N/A 2.0 ppb (3) 29.0 ppb (27) 0.76 ppb (10) N/A 16.0 μg/m3 (60) 60.0
 
April 18, 2021, 6 p.m. 8.8 ppb (9) 2.6 ppb (3) N/A 6.0 ppb (6) N/A 2.0 ppb (3) 36.0 ppb (34) 0.57 ppb (7) N/A 8.0 μg/m3 (34) 34.0
 
April 18, 2021, 5 p.m. 14.2 ppb (14) 5.1 ppb (5) N/A 9.0 ppb (9) N/A 2.0 ppb (3) 26.0 ppb (25) 0.66 ppb (8) N/A 16.0 μg/m3 (60) 60.0
 
April 18, 2021, 4 p.m. 18.9 ppb (18) 7.5 ppb (8) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 21.0 ppb (20) 0.73 ppb (8) N/A 18.0 μg/m3 (64) 64.0
 
April 18, 2021, 3 p.m. 18.8 ppb (18) 7.0 ppb (7) N/A 12.0 ppb (12) N/A 1.0 ppb (2) 19.0 ppb (18) 0.67 ppb (8) N/A 14.0 μg/m3 (55) 55.0
 
April 18, 2021, 2 p.m. 10.4 ppb (10) 2.8 ppb (3) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 17.0 ppb (16) 0.59 ppb (7) N/A 8.0 μg/m3 (34) 34.0
 
April 18, 2021, 1 p.m. 8.2 ppb (8) 1.2 ppb (2) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 16.0 ppb (15) 0.56 ppb (7) N/A 6.0 μg/m3 (25) 25.0
 
April 18, 2021, noon 8.7 ppb (9) 0.8 ppb (1) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 13.0 ppb (13) 0.56 ppb (7) N/A 9.0 μg/m3 (38) 38.0
 
April 18, 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 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. 11.8 ppb (12) 0.9 ppb (1) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 16.0 ppb (15) 0.66 ppb (8) N/A 9.0 μg/m3 (38) 38.0
 
April 18, 2021, 8 a.m. 16.4 ppb (16) 1.0 ppb (1) N/A 15.0 ppb (15) N/A 1.0 ppb (2) 14.0 ppb (13) 0.71 ppb (8) N/A 13.0 μg/m3 (53) 53.0
 
April 18, 2021, 7 a.m. 11.9 ppb (12) 0.9 ppb (1) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 23.0 ppb (22) 0.64 ppb (7) N/A 11.0 μg/m3 (46) 46.0
 
April 18, 2021, 6 a.m. 6.2 ppb (6) 0.7 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 32.0 ppb (30) 0.56 ppb (7) N/A 11.0 μg/m3 (46) 46.0
 
April 18, 2021, 5 a.m. 7.0 ppb (7) 0.8 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 31.0 ppb (29) 0.53 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
April 18, 2021, 4 a.m. 5.9 ppb (6) 0.9 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 33.0 ppb (31) 0.56 ppb (7) N/A 8.0 μg/m3 (34) 34.0
 
April 18, 2021, 3 a.m. 6.0 ppb (6) 1.3 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 34.0 ppb (32) 0.6 ppb (7) N/A 12.0 μg/m3 (50) 50.0
 
April 18, 2021, 2 a.m. 10.1 ppb (10) 1.4 ppb (2) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 29.0 ppb (27) 0.65 ppb (8) N/A 13.0 μg/m3 (53) 53.0
 
April 18, 2021, 1 a.m. 8.7 ppb (9) 2.4 ppb (3) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 32.0 ppb (30) 0.63 ppb (7) N/A 12.0 μg/m3 (50) 50.0
 
April 18, 2021, midnight 6.0 ppb (6) 2.1 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 35.0 ppb (33) 0.57 ppb (7) N/A 12.0 μg/m3 (50) 50.0
 
April 17, 2021, 11 p.m. 4.9 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 36.0 ppb (34) 0.56 ppb (7) N/A 10.0 μg/m3 (42) 42.0
 
April 17, 2021, 10 p.m. 5.3 ppb (5) 2.1 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 36.0 ppb (34) 0.55 ppb (7) N/A 11.0 μg/m3 (46) 46.0
 
April 17, 2021, 9 p.m. 5.9 ppb (6) 2.2 ppb (3) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 36.0 ppb (34) 0.56 ppb (7) N/A 13.0 μg/m3 (53) 53.0
 
April 17, 2021, 8 p.m. 5.7 ppb (6) 2.3 ppb (3) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 37.0 ppb (35) 0.55 ppb (7) N/A 12.0 μg/m3 (50) 50.0
 
April 17, 2021, 7 p.m. 6.7 ppb (7) 2.7 ppb (3) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 36.0 ppb (34) 0.58 ppb (7) N/A 13.0 μg/m3 (53) 53.0
 
April 17, 2021, 6 p.m. 11.2 ppb (11) 4.2 ppb (4) N/A 7.0 ppb (7) N/A 2.0 ppb (3) 33.0 ppb (31) 0.64 ppb (7) N/A 22.0 μg/m3 (72) 72.0
 
April 17, 2021, 5 p.m. 13.8 ppb (14) 5.0 ppb (5) N/A 9.0 ppb (9) N/A 2.0 ppb (3) 31.0 ppb (29) 0.7 ppb (8) N/A 22.0 μg/m3 (72) 72.0
 
April 17, 2021, 4 p.m. 11.2 ppb (11) 3.7 ppb (4) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 32.0 ppb (30) 0.68 ppb (8) N/A 24.0 μg/m3 (77) 77.0
 
April 17, 2021, 3 p.m. 10.5 ppb (10) 2.7 ppb (3) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 32.0 ppb (30) 0.76 ppb (10) N/A 47.0 μg/m3 (130) 130.0
 
April 17, 2021, 2 p.m. 6.5 ppb (7) 1.3 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 33.0 ppb (31) 0.56 ppb (7) N/A 11.0 μg/m3 (46) 46.0
 
April 17, 2021, 1 p.m. 6.0 ppb (6) 0.6 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 33.0 ppb (31) 0.51 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
April 17, 2021, noon 3.8 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 36.0 ppb (34) 0.49 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
April 17, 2021, 11 a.m. 3.2 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 37.0 ppb (35) 0.47 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
April 17, 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 17, 2021, 9 a.m. 2.3 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 37.0 ppb (35) 0.49 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
April 17, 2021, 8 a.m. 4.0 ppb (4) 0.5 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 35.0 ppb (33) 0.5 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
April 17, 2021, 7 a.m. 4.1 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 35.0 ppb (33) 0.51 ppb (6) N/A 8.0 μg/m3 (34) 34.0
 
April 17, 2021, 6 a.m. 3.3 ppb (4) 0.9 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 37.0 ppb (35) 0.51 ppb (6) N/A 9.0 μg/m3 (38) 38.0
 
April 17, 2021, 5 a.m. 4.9 ppb (5) 1.2 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 36.0 ppb (34) 0.55 ppb (7) N/A 12.0 μg/m3 (50) 50.0
 
April 17, 2021, 4 a.m. 7.4 ppb (7) 1.1 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 33.0 ppb (31) 0.59 ppb (7) N/A 9.0 μg/m3 (38) 38.0
 
April 17, 2021, 3 a.m. 8.8 ppb (9) 1.4 ppb (2) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 32.0 ppb (30) 0.59 ppb (7) N/A 10.0 μg/m3 (42) 42.0
 
April 17, 2021, 2 a.m. 11.5 ppb (11) 2.0 ppb (2) N/A 10.0 ppb (10) N/A 2.0 ppb (3) 32.0 ppb (30) 0.57 ppb (7) N/A 9.0 μg/m3 (38) 38.0
 
April 17, 2021, 1 a.m. 6.0 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 38.0 ppb (36) 0.57 ppb (7) N/A 8.0 μg/m3 (34) 36.0
 
April 17, 2021, midnight 5.4 ppb (6) 2.2 ppb (3) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 39.0 ppb (37) 0.57 ppb (7) N/A 10.0 μg/m3 (42) 42.0
 
April 16, 2021, 11 p.m. 5.0 ppb (5) 1.9 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 40.0 ppb (38) 0.58 ppb (7) N/A 10.0 μg/m3 (42) 42.0
 
April 16, 2021, 10 p.m. 5.4 ppb (6) 2.4 ppb (3) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 39.0 ppb (37) 0.58 ppb (7) N/A 9.0 μg/m3 (38) 38.0
 
April 16, 2021, 9 p.m. 5.3 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 41.0 ppb (38) 0.54 ppb (6) N/A 8.0 μg/m3 (34) 38.0
 
April 16, 2021, 8 p.m. 6.7 ppb (7) 2.5 ppb (3) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 41.0 ppb (38) 0.54 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
April 16, 2021, 7 p.m. 8.5 ppb (9) 3.2 ppb (4) N/A 5.0 ppb (5) N/A 2.0 ppb (3) 40.0 ppb (38) 0.57 ppb (7) N/A 11.0 μg/m3 (46) 46.0
 
April 16, 2021, 6 p.m. 11.2 ppb (11) 3.6 ppb (4) N/A 8.0 ppb (8) N/A 2.0 ppb (3) 39.0 ppb (37) 0.64 ppb (7) N/A 16.0 μg/m3 (60) 60.0
 
April 16, 2021, 5 p.m. 12.4 ppb (12) 4.2 ppb (4) N/A 8.0 ppb (8) N/A 2.0 ppb (3) 36.0 ppb (34) 0.7 ppb (8) N/A 16.0 μg/m3 (60) 60.0
 
April 16, 2021, 4 p.m. 6.4 ppb (7) 2.1 ppb (2) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 38.0 ppb (36) 0.57 ppb (7) N/A 9.0 μg/m3 (38) 38.0
 
April 16, 2021, 3 p.m. 12.8 ppb (13) 3.5 ppb (4) N/A 9.0 ppb (9) N/A 2.0 ppb (3) 31.0 ppb (29) 0.62 ppb (7) N/A 11.0 μg/m3 (46) 46.0
 
April 16, 2021, 2 p.m. 40.6 ppb (39) 15.8 ppb (15) N/A 25.0 ppb (24) N/A 2.0 ppb (3) 11.0 ppb (11) 1.06 ppb (13) N/A 7.0 μg/m3 (30) 39.0
 
April 16, 2021, 1 p.m. 43.0 ppb (41) 16.4 ppb (16) N/A 27.0 ppb (26) N/A 2.0 ppb (3) 2.0 ppb (2) 1.2 ppb (14) N/A 8.0 μg/m3 (34) 41.0
 
April 16, 2021, noon 21.2 ppb (20) 4.6 ppb (5) N/A 17.0 ppb (17) N/A 2.0 ppb (3) 15.0 ppb (14) 0.76 ppb (10) N/A 9.0 μg/m3 (38) 38.0
 
April 16, 2021, 11 a.m. 10.5 ppb (10) 0.6 ppb (1) N/A 10.0 ppb (10) N/A 2.0 ppb (3) 21.0 ppb (20) 0.57 ppb (7) N/A 9.0 μg/m3 (38) 38.0
 
April 16, 2021, 10 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 16, 2021, 9 a.m. 12.9 ppb (13) 1.7 ppb (2) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 21.0 ppb (20) 0.55 ppb (7) N/A 10.0 μg/m3 (42) 42.0
 
April 16, 2021, 8 a.m. 5.9 ppb (6) 0.6 ppb (1) N/A 5.0 ppb (5) N/A 2.0 ppb (3) 30.0 ppb (28) 0.51 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
April 16, 2021, 7 a.m. 3.4 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 37.0 ppb (35) 0.5 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
April 16, 2021, 6 a.m. 3.1 ppb (3) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 38.0 ppb (36) 0.51 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
April 16, 2021, 5 a.m. 7.3 ppb (7) 0.7 ppb (1) N/A 7.0 ppb (7) N/A 2.0 ppb (3) 36.0 ppb (34) 0.58 ppb (7) N/A 17.0 μg/m3 (62) 62.0
 
April 16, 2021, 4 a.m. 9.5 ppb (9) 0.8 ppb (1) N/A 9.0 ppb (9) N/A 2.0 ppb (3) 37.0 ppb (35) 0.59 ppb (7) N/A 13.0 μg/m3 (53) 53.0
 
April 16, 2021, 3 a.m. 7.8 ppb (8) 1.2 ppb (2) N/A 7.0 ppb (7) N/A 2.0 ppb (3) 39.0 ppb (37) 0.58 ppb (7) N/A 10.0 μg/m3 (42) 42.0
 
April 16, 2021, 2 a.m. 6.5 ppb (7) 1.2 ppb (2) N/A 5.0 ppb (5) N/A 2.0 ppb (3) 42.0 ppb (39) 0.55 ppb (7) N/A 9.0 μg/m3 (38) 39.0
 
April 16, 2021, 1 a.m. 4.8 ppb (5) 1.6 ppb (2) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 45.0 ppb (42) 0.56 ppb (7) N/A 9.0 μg/m3 (38) 42.0
 
April 16, 2021, midnight 6.6 ppb (7) 2.1 ppb (2) N/A 5.0 ppb (5) N/A 2.0 ppb (3) 45.0 ppb (42) 0.56 ppb (7) N/A 9.0 μg/m3 (38) 42.0
 
April 15, 2021, 11 p.m. 5.3 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 46.0 ppb (43) 0.55 ppb (7) N/A 10.0 μg/m3 (42) 43.0
 
April 15, 2021, 10 p.m. 6.4 ppb (7) 2.1 ppb (2) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 45.0 ppb (42) 0.62 ppb (7) N/A 13.0 μg/m3 (53) 53.0
 
April 15, 2021, 9 p.m. 4.9 ppb (5) 1.3 ppb (2) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 46.0 ppb (43) 0.63 ppb (7) N/A 32.0 μg/m3 (93) 93.0
 
April 15, 2021, 8 p.m. 6.5 ppb (7) 2.0 ppb (2) N/A 5.0 ppb (5) N/A 2.0 ppb (3) 46.0 ppb (43) 0.59 ppb (7) N/A 10.0 μg/m3 (42) 43.0
 
April 15, 2021, 7 p.m. 5.9 ppb (6) 1.9 ppb (2) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 44.0 ppb (41) 0.63 ppb (7) N/A 13.0 μg/m3 (53) 53.0
 
April 15, 2021, 6 p.m. 6.1 ppb (6) 1.8 ppb (2) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 43.0 ppb (40) 0.69 ppb (8) N/A 41.0 μg/m3 (115) 115.0
 
April 15, 2021, 5 p.m. 7.1 ppb (7) 2.0 ppb (2) N/A 5.0 ppb (5) N/A 2.0 ppb (3) 42.0 ppb (39) 0.66 ppb (8) N/A 19.0 μg/m3 (66) 66.0
 
April 15, 2021, 4 p.m. 8.7 ppb (9) 2.2 ppb (3) N/A 6.0 ppb (6) N/A 2.0 ppb (3) 40.0 ppb (38) 0.76 ppb (10) N/A 39.0 μg/m3 (110) 110.0
 
April 15, 2021, 3 p.m. 8.5 ppb (9) 2.0 ppb (2) N/A 7.0 ppb (7) N/A 2.0 ppb (3) 40.0 ppb (38) 0.78 ppb (10) N/A 38.0 μg/m3 (108) 108.0
 
April 15, 2021, 2 p.m. 13.2 ppb (13) 2.5 ppb (3) N/A 11.0 ppb (11) N/A 2.0 ppb (3) 33.0 ppb (31) 0.64 ppb (7) N/A 10.0 μg/m3 (42) 42.0
 
April 15, 2021, 1 p.m. 33.0 ppb (32) 10.7 ppb (11) N/A 22.0 ppb (21) N/A 2.0 ppb (3) 19.0 ppb (18) 0.71 ppb (8) N/A 8.0 μg/m3 (34) 34.0
 
April 15, 2021, noon 12.7 ppb (12) 1.1 ppb (2) N/A 12.0 ppb (12) N/A 1.0 ppb (2) 26.0 ppb (25) 0.57 ppb (7) N/A 7.0 μg/m3 (30) 30.0
 
April 15, 2021, 11 a.m. 5.7 ppb (6) 0.4 ppb (1) N/A 5.0 ppb (5) N/A 2.0 ppb (3) 35.0 ppb (33) 0.54 ppb (6) N/A 7.0 μg/m3 (30) 33.0
 
April 15, 2021, 10 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 15, 2021, 9 a.m. 4.3 ppb (5) 0.3 ppb (1) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 38.0 ppb (36) 0.53 ppb (6) N/A 11.0 μg/m3 (46) 46.0
 
April 15, 2021, 8 a.m. 3.3 ppb (4) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 41.0 ppb (38) 0.52 ppb (6) N/A 10.0 μg/m3 (42) 42.0
 
April 15, 2021, 7 a.m. 4.9 ppb (5) 0.4 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 41.0 ppb (38) 0.52 ppb (6) N/A 14.0 μg/m3 (55) 55.0
 
April 15, 2021, 6 a.m. 5.5 ppb (6) 0.4 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 40.0 ppb (38) 0.53 ppb (6) N/A 15.0 μg/m3 (58) 58.0
 
April 15, 2021, 5 a.m. 8.7 ppb (9) 0.6 ppb (1) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 38.0 ppb (36) 0.57 ppb (7) N/A 14.0 μg/m3 (55) 55.0
 
April 15, 2021, 4 a.m. 9.0 ppb (9) 0.8 ppb (1) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 40.0 ppb (38) 0.59 ppb (7) N/A 13.0 μg/m3 (53) 53.0
 
April 15, 2021, 3 a.m. 8.5 ppb (9) 1.2 ppb (2) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 42.0 ppb (39) 0.62 ppb (7) N/A 17.0 μg/m3 (62) 62.0
 
April 15, 2021, 2 a.m. 9.5 ppb (9) 1.3 ppb (2) N/A 8.0 ppb (8) N/A 2.0 ppb (3) 41.0 ppb (38) 0.52 ppb (6) N/A 13.0 μg/m3 (53) 53.0
 
April 15, 2021, 1 a.m. 7.3 ppb (7) 1.5 ppb (2) N/A 6.0 ppb (6) N/A 2.0 ppb (3) 43.0 ppb (40) 0.53 ppb (6) N/A 14.0 μg/m3 (55) 55.0
 
April 15, 2021, midnight 4.1 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 3.0 ppb (5) 47.0 ppb (44) 0.53 ppb (6) N/A 12.0 μg/m3 (50) 50.0
 
April 14, 2021, 11 p.m. 4.1 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) 48.0 ppb (45) 0.52 ppb (6) N/A 14.0 μg/m3 (55) 55.0
 
April 14, 2021, 10 p.m. 6.8 ppb (7) 2.0 ppb (2) N/A 5.0 ppb (5) N/A 2.0 ppb (3) 48.0 ppb (45) 0.54 ppb (6) N/A 17.0 μg/m3 (62) 62.0
 
April 14, 2021, 9 p.m. 5.7 ppb (6) 1.6 ppb (2) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 48.0 ppb (45) 0.55 ppb (7) N/A 14.0 μg/m3 (55) 55.0
 
April 14, 2021, 8 p.m. 4.8 ppb (5) 1.3 ppb (2) N/A 4.0 ppb (4) N/A 2.0 ppb (3) 47.0 ppb (44) 0.54 ppb (6) N/A 14.0 μg/m3 (55) 55.0