ID: 120

AQSQID: 060131002

Site Name: Bethel Island

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

Updated: Sept. 21, 2021, 5:05 p.m.

Location: Oakley (Bethel Is Rd), CA

Reporting: True, Located: True

Current AQI: 17.0

Oakley (Bethel Is Rd) CA, US: 38.006311, -121.641918

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 21, 2021, 3 p.m. 17.8 ppb (17) 5.5 ppb (6) N/A 12.0 ppb (12) N/A 1.0 ppb (2) 11.0 ppb (11) 0.46 ppb (6) N/A N/A 17.0
 
Sept. 21, 2021, 2 p.m. 20.1 ppb (19) 7.3 ppb (7) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 7.0 ppb (7) 0.52 ppb (6) N/A N/A 19.0
 
Sept. 21, 2021, 1 p.m. 14.3 ppb (14) 2.7 ppb (3) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 5.0 ppb (5) 0.49 ppb (6) N/A N/A 14.0
 
Sept. 21, 2021, noon 9.1 ppb (9) 0.0 ppb (0) N/A 9.0 ppb (9) N/A N/A 9.0 ppb (9) 0.45 ppb (6) N/A N/A 9.0
 
Sept. 21, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Sept. 21, 2021, 10 a.m. 6.8 ppb (7) -0.2 ppb (0) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 14.0 ppb (13) 0.45 ppb (6) N/A N/A 13.0
 
Sept. 21, 2021, 9 a.m. 7.1 ppb (7) -0.1 ppb (0) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 22.0 ppb (21) 0.38 ppb (5) N/A N/A 21.0
 
Sept. 21, 2021, 8 a.m. 6.6 ppb (7) -0.2 ppb (0) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 23.0 ppb (22) 0.29 ppb (4) N/A N/A 22.0
 
Sept. 21, 2021, 7 a.m. 6.2 ppb (6) -0.2 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 25.0 ppb (24) 0.27 ppb (4) N/A N/A 24.0
 
Sept. 21, 2021, 6 a.m. 4.4 ppb (5) -0.2 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 30.0 ppb (28) 0.28 ppb (4) N/A N/A 28.0
 
Sept. 21, 2021, 5 a.m. 4.5 ppb (5) -0.1 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 33.0 ppb (31) 0.29 ppb (4) N/A N/A 31.0
 
Sept. 21, 2021, 4 a.m. 7.0 ppb (7) -0.2 ppb (0) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 30.0 ppb (28) 0.32 ppb (4) N/A N/A 28.0
 
Sept. 21, 2021, 3 a.m. 8.5 ppb (9) -0.2 ppb (0) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 35.0 ppb (33) 0.67 ppb (8) N/A N/A 33.0
 
Sept. 21, 2021, 2 a.m. 10.0 ppb (10) 0.0 ppb (0) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 38.0 ppb (36) 0.34 ppb (4) N/A N/A 36.0
 
Sept. 21, 2021, 1 a.m. 3.0 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 51.0 ppb (48) 0.23 ppb (3) N/A N/A 48.0
 
Sept. 21, 2021, midnight 1.5 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 54.0 ppb (50) 0.21 ppb (3) N/A N/A 50.0
 
Sept. 20, 2021, 11 p.m. 1.2 ppb (2) -0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 52.0 ppb (49) 0.2 ppb (3) N/A N/A 49.0
 
Sept. 20, 2021, 10 p.m. 0.8 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 48.0 ppb (45) 0.17 ppb (3) N/A N/A 45.0
 
Sept. 20, 2021, 9 p.m. 0.9 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 45.0 ppb (42) 0.17 ppb (3) N/A N/A 42.0
 
Sept. 20, 2021, 8 p.m. 1.2 ppb (2) -0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 42.0 ppb (39) 0.17 ppb (3) N/A N/A 39.0
 
Sept. 20, 2021, 7 p.m. 0.8 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 40.0 ppb (38) 0.17 ppb (3) N/A N/A 38.0
 
Sept. 20, 2021, 6 p.m. 1.3 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (35) 0.18 ppb (3) N/A N/A 35.0
 
Sept. 20, 2021, 5 p.m. 1.3 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 34.0 ppb (32) 0.19 ppb (3) N/A N/A 32.0
 
Sept. 20, 2021, 4 p.m. 2.3 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (28) 0.22 ppb (3) N/A N/A 28.0
 
Sept. 20, 2021, 3 p.m. 3.0 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (25) 0.22 ppb (3) N/A N/A 25.0
 
Sept. 20, 2021, 2 p.m. 4.8 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 22.0 ppb (21) 0.25 ppb (3) N/A N/A 21.0
 
Sept. 20, 2021, 1 p.m. 2.8 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (25) 0.25 ppb (3) N/A N/A 25.0
 
Sept. 20, 2021, noon 1.0 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 30.0 ppb (28) 0.21 ppb (3) N/A N/A 28.0
 
Sept. 20, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Sept. 20, 2021, 10 a.m. 2.6 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 23.0 ppb (22) 0.25 ppb (3) N/A N/A 22.0
 
Sept. 20, 2021, 9 a.m. 3.2 ppb (4) -0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 23.0 ppb (22) 0.26 ppb (4) N/A N/A 22.0
 
Sept. 20, 2021, 8 a.m. 3.1 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 24.0 ppb (23) 0.26 ppb (4) N/A N/A 23.0
 
Sept. 20, 2021, 7 a.m. 3.0 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 24.0 ppb (23) 0.27 ppb (4) N/A N/A 23.0
 
Sept. 20, 2021, 6 a.m. 2.9 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 24.0 ppb (23) 0.26 ppb (4) N/A N/A 23.0
 
Sept. 20, 2021, 5 a.m. 2.6 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (24) 0.26 ppb (4) N/A N/A 24.0
 
Sept. 20, 2021, 4 a.m. 2.1 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 27.0 ppb (25) 0.25 ppb (3) N/A N/A 25.0
 
Sept. 20, 2021, 3 a.m. 1.6 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (29) 0.25 ppb (3) N/A N/A 29.0
 
Sept. 20, 2021, 2 a.m. 1.1 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (32) 0.23 ppb (3) N/A N/A 32.0
 
Sept. 20, 2021, 1 a.m. 0.9 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (38) 0.2 ppb (3) N/A N/A 38.0
 
Sept. 20, 2021, midnight 0.3 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 47.0 ppb (44) 0.18 ppb (3) N/A N/A 44.0
 
Sept. 19, 2021, 11 p.m. 0.6 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 47.0 ppb (44) 0.17 ppb (3) N/A N/A 44.0
 
Sept. 19, 2021, 10 p.m. 0.4 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 47.0 ppb (44) 0.18 ppb (3) N/A N/A 44.0
 
Sept. 19, 2021, 9 p.m. 0.6 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 44.0 ppb (41) 0.2 ppb (3) N/A N/A 41.0
 
Sept. 19, 2021, 8 p.m. 0.7 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 42.0 ppb (39) 0.2 ppb (3) N/A N/A 39.0
 
Sept. 19, 2021, 7 p.m. 0.8 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 40.0 ppb (38) 0.21 ppb (3) N/A N/A 38.0
 
Sept. 19, 2021, 6 p.m. 1.3 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 38.0 ppb (36) 0.21 ppb (3) N/A N/A 36.0
 
Sept. 19, 2021, 5 p.m. 2.8 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 34.0 ppb (32) 0.23 ppb (3) N/A N/A 32.0
 
Sept. 19, 2021, 4 p.m. 2.5 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (29) 0.23 ppb (3) N/A N/A 29.0
 
Sept. 19, 2021, 3 p.m. 2.6 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (28) 0.24 ppb (3) N/A N/A 28.0
 
Sept. 19, 2021, 2 p.m. 1.8 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 28.0 ppb (26) 0.24 ppb (3) N/A N/A 26.0
 
Sept. 19, 2021, 1 p.m. 1.3 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (25) 0.22 ppb (3) N/A N/A 25.0
 
Sept. 19, 2021, noon 0.5 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (27) 0.23 ppb (3) N/A N/A 27.0
 
Sept. 19, 2021, 11 a.m. 0.7 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 25.0 ppb (24) 0.24 ppb (3) N/A N/A 24.0
 
Sept. 19, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Sept. 19, 2021, 9 a.m. 2.0 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 17.0 ppb (16) 0.24 ppb (3) N/A N/A 16.0
 
Sept. 19, 2021, 8 a.m. 3.5 ppb (4) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 14.0 ppb (13) 0.35 ppb (4) N/A N/A 13.0
 
Sept. 19, 2021, 7 a.m. 3.8 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 13.0 ppb (13) 0.42 ppb (5) N/A N/A 13.0
 
Sept. 19, 2021, 6 a.m. 3.4 ppb (4) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 17.0 ppb (16) 0.44 ppb (5) N/A N/A 16.0
 
Sept. 19, 2021, 5 a.m. 1.3 ppb (2) -0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 21.0 ppb (20) 0.24 ppb (3) N/A N/A 20.0
 
Sept. 19, 2021, 4 a.m. 1.3 ppb (2) -0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 23.0 ppb (22) 0.25 ppb (3) N/A N/A 22.0
 
Sept. 19, 2021, 3 a.m. 1.0 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (23) 0.24 ppb (3) N/A N/A 23.0
 
Sept. 19, 2021, 2 a.m. 0.9 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 25.0 ppb (24) 0.22 ppb (3) N/A N/A 24.0
 
Sept. 19, 2021, 1 a.m. 0.6 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 25.0 ppb (24) 0.21 ppb (3) N/A N/A 24.0
 
Sept. 19, 2021, midnight 0.8 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 26.0 ppb (25) 0.23 ppb (3) N/A N/A 25.0
 
Sept. 18, 2021, 11 p.m. 1.3 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (27) 0.23 ppb (3) N/A N/A 27.0
 
Sept. 18, 2021, 10 p.m. 1.3 ppb (2) -0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 31.0 ppb (29) 0.22 ppb (3) N/A N/A 29.0
 
Sept. 18, 2021, 9 p.m. 1.7 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (30) 0.22 ppb (3) N/A N/A 30.0
 
Sept. 18, 2021, 8 p.m. 2.0 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (32) 0.23 ppb (3) N/A N/A 32.0
 
Sept. 18, 2021, 7 p.m. 1.4 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (31) 0.22 ppb (3) N/A N/A 31.0
 
Sept. 18, 2021, 6 p.m. 1.8 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (29) 0.23 ppb (3) N/A N/A 29.0
 
Sept. 18, 2021, 5 p.m. 1.3 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (27) 0.22 ppb (3) N/A N/A 27.0
 
Sept. 18, 2021, 4 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (25) 0.22 ppb (3) N/A N/A 25.0
 
Sept. 18, 2021, 3 p.m. 3.1 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (25) 0.27 ppb (4) N/A N/A 25.0
 
Sept. 18, 2021, 2 p.m. 5.2 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 16.0 ppb (15) 0.29 ppb (4) N/A N/A 15.0
 
Sept. 18, 2021, 1 p.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 16.0 ppb (15) 0.28 ppb (4) N/A N/A 15.0
 
Sept. 18, 2021, noon 3.2 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 20.0 ppb (19) 0.33 ppb (4) N/A N/A 19.0
 
Sept. 18, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Sept. 18, 2021, 10 a.m. 1.5 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (29) 0.29 ppb (4) N/A N/A 29.0
 
Sept. 18, 2021, 9 a.m. 1.8 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (31) 0.28 ppb (4) N/A N/A 31.0
 
Sept. 18, 2021, 8 a.m. 1.7 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (32) 0.28 ppb (4) N/A N/A 32.0
 
Sept. 18, 2021, 7 a.m. 2.6 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (31) 0.29 ppb (4) N/A N/A 31.0
 
Sept. 18, 2021, 6 a.m. 2.4 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (31) 0.29 ppb (4) N/A N/A 31.0
 
Sept. 18, 2021, 5 a.m. 2.7 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (30) 0.29 ppb (4) N/A N/A 30.0
 
Sept. 18, 2021, 4 a.m. 2.2 ppb (3) -0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (30) 0.3 ppb (4) N/A N/A 30.0
 
Sept. 18, 2021, 3 a.m. 1.9 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (30) 0.29 ppb (4) N/A N/A 30.0
 
Sept. 18, 2021, 2 a.m. 2.4 ppb (3) -0.3 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (29) 0.29 ppb (4) N/A N/A 29.0
 
Sept. 18, 2021, 1 a.m. 2.7 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (31) 0.3 ppb (4) N/A N/A 31.0
 
Sept. 18, 2021, midnight 3.9 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 37.0 ppb (35) 0.29 ppb (4) N/A N/A 35.0
 
Sept. 17, 2021, 11 p.m. 3.1 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 46.0 ppb (43) 0.28 ppb (4) N/A N/A 43.0
 
Sept. 17, 2021, 10 p.m. 3.1 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 51.0 ppb (48) 0.3 ppb (4) N/A N/A 48.0
 
Sept. 17, 2021, 9 p.m. 5.0 ppb (5) 0.3 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 46.0 ppb (43) 0.31 ppb (4) N/A N/A 43.0
 
Sept. 17, 2021, 8 p.m. 4.7 ppb (5) 0.4 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 42.0 ppb (39) 0.29 ppb (4) N/A N/A 39.0
 
Sept. 17, 2021, 7 p.m. 5.7 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 39.0 ppb (37) 0.29 ppb (4) N/A N/A 37.0
 
Sept. 17, 2021, 6 p.m. 5.0 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 34.0 ppb (32) 0.29 ppb (4) N/A N/A 32.0
 
Sept. 17, 2021, 5 p.m. 4.0 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (29) 0.29 ppb (4) N/A N/A 29.0
 
Sept. 17, 2021, 4 p.m. 4.0 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 28.0 ppb (26) 0.28 ppb (4) N/A N/A 26.0
 
Sept. 17, 2021, 3 p.m. 3.6 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (24) 0.28 ppb (4) N/A N/A 24.0
 
Sept. 17, 2021, 2 p.m. 3.0 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (21) 0.27 ppb (4) N/A N/A 21.0
 
Sept. 17, 2021, 1 p.m. 1.7 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 23.0 ppb (22) 0.27 ppb (4) N/A N/A 22.0
 
Sept. 17, 2021, noon 1.6 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 23.0 ppb (22) 0.26 ppb (4) N/A N/A 22.0
 
Sept. 17, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Sept. 17, 2021, 10 a.m. 1.6 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 25.0 ppb (24) 0.26 ppb (4) N/A N/A 24.0
 
Sept. 17, 2021, 9 a.m. 1.8 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (25) 0.26 ppb (4) N/A N/A 25.0
 
Sept. 17, 2021, 8 a.m. 2.0 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 25.0 ppb (24) 0.27 ppb (4) N/A N/A 24.0
 
Sept. 17, 2021, 7 a.m. 2.1 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (25) 0.27 ppb (4) N/A N/A 25.0
 
Sept. 17, 2021, 6 a.m. 2.3 ppb (3) -0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (25) 0.27 ppb (4) N/A N/A 25.0
 
Sept. 17, 2021, 5 a.m. 2.4 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (25) 0.28 ppb (4) N/A N/A 25.0
 
Sept. 17, 2021, 4 a.m. 2.6 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (27) 0.29 ppb (4) N/A N/A 27.0
 
Sept. 17, 2021, 3 a.m. 3.0 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (30) 0.29 ppb (4) N/A N/A 30.0
 
Sept. 17, 2021, 2 a.m. 2.8 ppb (3) -0.3 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (32) 0.29 ppb (4) N/A N/A 32.0
 
Sept. 17, 2021, 1 a.m. 2.4 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 38.0 ppb (36) 0.27 ppb (4) N/A N/A 36.0
 
Sept. 17, 2021, midnight 2.1 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 43.0 ppb (40) 0.27 ppb (4) N/A N/A 40.0
 
Sept. 16, 2021, 11 p.m. 2.1 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 44.0 ppb (41) 0.26 ppb (4) N/A N/A 41.0
 
Sept. 16, 2021, 10 p.m. 2.6 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 47.0 ppb (44) 0.25 ppb (3) N/A N/A 44.0
 
Sept. 16, 2021, 9 p.m. 2.8 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 52.0 ppb (49) 0.27 ppb (4) N/A N/A 49.0
 
Sept. 16, 2021, 8 p.m. 2.7 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 50.0 ppb (47) 0.26 ppb (4) N/A N/A 47.0
 
Sept. 16, 2021, 7 p.m. 3.1 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 44.0 ppb (41) 0.26 ppb (4) N/A N/A 41.0
 
Sept. 16, 2021, 6 p.m. 3.8 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 40.0 ppb (38) 0.27 ppb (4) N/A N/A 38.0
 
Sept. 16, 2021, 5 p.m. 3.9 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 37.0 ppb (35) 0.27 ppb (4) N/A N/A 35.0
 
Sept. 16, 2021, 4 p.m. 3.5 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 36.0 ppb (34) 0.28 ppb (4) N/A N/A 34.0
 
Sept. 16, 2021, 3 p.m. 3.0 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 36.0 ppb (34) 0.27 ppb (4) N/A N/A 34.0
 
Sept. 16, 2021, 2 p.m. 2.8 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 37.0 ppb (35) 0.27 ppb (4) N/A N/A 35.0
 
Sept. 16, 2021, 1 p.m. 1.7 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (37) 0.27 ppb (4) N/A N/A 37.0
 
Sept. 16, 2021, noon 1.4 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (37) 0.27 ppb (4) N/A N/A 37.0
 
Sept. 16, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Sept. 16, 2021, 10 a.m. 1.9 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (35) 0.26 ppb (4) N/A N/A 35.0
 
Sept. 16, 2021, 9 a.m. 1.6 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (36) 0.27 ppb (4) N/A N/A 36.0
 
Sept. 16, 2021, 8 a.m. 1.9 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (36) 0.26 ppb (4) N/A N/A 36.0
 
Sept. 16, 2021, 7 a.m. 1.8 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (36) 0.25 ppb (3) N/A N/A 36.0
 
Sept. 16, 2021, 6 a.m. 1.9 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (37) 0.25 ppb (3) N/A N/A 37.0
 
Sept. 16, 2021, 5 a.m. 1.8 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 41.0 ppb (38) 0.25 ppb (3) N/A N/A 38.0
 
Sept. 16, 2021, 4 a.m. 2.8 ppb (3) -0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 39.0 ppb (37) 0.25 ppb (3) N/A N/A 37.0
 
Sept. 16, 2021, 3 a.m. 3.7 ppb (4) -0.2 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 40.0 ppb (38) 0.24 ppb (3) N/A N/A 38.0
 
Sept. 16, 2021, 2 a.m. 2.1 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 43.0 ppb (40) 0.24 ppb (3) N/A N/A 40.0
 
Sept. 16, 2021, 1 a.m. 1.9 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 45.0 ppb (42) 0.23 ppb (3) N/A N/A 42.0
 
Sept. 16, 2021, midnight 1.9 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 47.0 ppb (44) 0.25 ppb (3) N/A N/A 44.0
 
Sept. 15, 2021, 11 p.m. 1.9 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 48.0 ppb (45) 0.26 ppb (4) N/A N/A 45.0
 
Sept. 15, 2021, 10 p.m. 2.2 ppb (3) -0.1 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 49.0 ppb (46) 0.26 ppb (4) N/A N/A 46.0
 
Sept. 15, 2021, 9 p.m. 2.9 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 50.0 ppb (47) 0.26 ppb (4) N/A N/A 47.0
 
Sept. 15, 2021, 8 p.m. 3.0 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 48.0 ppb (45) 0.25 ppb (3) N/A N/A 45.0
 
Sept. 15, 2021, 7 p.m. 112.5 ppb (104) 57.4 ppb (55) N/A N/A N/A 57.0 ppb (78) 28.0 ppb (26) 2.84 ppb (32) N/A N/A 104.0
 
Sept. 15, 2021, 6 p.m. 3.4 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (25) 0.2 ppb (3) N/A N/A 25.0
 
Sept. 15, 2021, 5 p.m. 5.0 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 36.0 ppb (34) 0.32 ppb (4) N/A N/A 34.0
 
Sept. 15, 2021, 4 p.m. 4.2 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (32) 0.32 ppb (4) N/A N/A 32.0
 
Sept. 15, 2021, 3 p.m. 3.8 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (28) 0.31 ppb (4) N/A N/A 28.0
 
Sept. 15, 2021, 2 p.m. 4.5 ppb (5) 0.4 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 29.0 ppb (27) 0.31 ppb (4) N/A N/A 27.0
 
Sept. 15, 2021, 1 p.m. 2.5 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (28) 0.3 ppb (4) N/A N/A 28.0
 
Sept. 15, 2021, noon 3.4 ppb (4) 0.2 ppb (1) N/A 3.0 ppb (3) N/A N/A 29.0 ppb (27) 0.29 ppb (4) N/A N/A 27.0
 
Sept. 15, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Sept. 15, 2021, 10 a.m. 3.0 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (25) 0.29 ppb (4) N/A N/A 25.0
 
Sept. 15, 2021, 9 a.m. 3.0 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 27.0 ppb (25) 0.3 ppb (4) N/A N/A 25.0
 
Sept. 15, 2021, 8 a.m. 3.8 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 28.0 ppb (26) 0.29 ppb (4) N/A N/A 26.0
 
Sept. 15, 2021, 7 a.m. 3.5 ppb (4) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (28) 0.29 ppb (4) N/A N/A 28.0
 
Sept. 15, 2021, 6 a.m. 4.2 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 28.0 ppb (26) 0.3 ppb (4) N/A N/A 26.0
 
Sept. 15, 2021, 5 a.m. 3.9 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 32.0 ppb (30) 0.31 ppb (4) N/A N/A 30.0
 
Sept. 15, 2021, 4 a.m. 3.8 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 36.0 ppb (34) 0.29 ppb (4) N/A N/A 34.0
 
Sept. 15, 2021, 3 a.m. 2.9 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 35.0 ppb (33) 0.28 ppb (4) N/A N/A 33.0
 
Sept. 15, 2021, 2 a.m. 2.9 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 39.0 ppb (37) 0.26 ppb (4) N/A N/A 37.0
 
Sept. 15, 2021, 1 a.m. 3.0 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 47.0 ppb (44) 0.25 ppb (3) N/A N/A 44.0
 
Sept. 15, 2021, midnight 3.9 ppb (4) 0.3 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 67.0 ppb (91) 0.35 ppb (4) N/A N/A 91.0
 
Sept. 14, 2021, 11 p.m. 2.9 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 67.0 ppb (91) 0.33 ppb (4) N/A N/A 91.0
 
Sept. 14, 2021, 10 p.m. 2.3 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 72.0 ppb (102) 0.33 ppb (4) N/A N/A 102.0
 
Sept. 14, 2021, 9 p.m. 3.2 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 71.0 ppb (101) 0.34 ppb (4) N/A N/A 101.0
 
Sept. 14, 2021, 8 p.m. 3.6 ppb (4) -0.1 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 65.0 ppb (84) 0.34 ppb (4) N/A N/A 84.0
 
Sept. 14, 2021, 7 p.m. 5.3 ppb (5) 0.4 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 53.0 ppb (50) 0.32 ppb (4) N/A N/A 50.0
 
Sept. 14, 2021, 6 p.m. 7.7 ppb (8) 1.3 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 36.0 ppb (34) 0.33 ppb (4) N/A N/A 34.0
 
Sept. 14, 2021, 5 p.m. 8.7 ppb (9) 2.0 ppb (2) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 26.0 ppb (25) 0.33 ppb (4) N/A N/A 25.0
 
Sept. 14, 2021, 4 p.m. 10.7 ppb (11) 2.9 ppb (3) N/A 8.0 ppb (8) N/A 2.0 ppb (3) 20.0 ppb (19) 0.34 ppb (4) N/A N/A 19.0