ID: 1954

AQSQID: 516500008

Site Name: Hampton

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

Updated: June 15, 2021, 11:50 a.m.

Location: Hampton (Langley Air Force Base), VA

Reporting: True, Located: True

Current AQI: 37.0

Hampton (Langley Air Force Base) VA, US: 37.103683, -76.386948

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
June 15, 2021, 10 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (28) 0.2 ppb (3) N/A 8.7 μg/m3 (37) 37.0
 
June 15, 2021, 9 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) N/A 0.2 ppb (3) N/A 11.5 μg/m3 (48) 48.0
 
June 15, 2021, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 26.0 ppb (25) 0.2 ppb (3) N/A 11.1 μg/m3 (47) 47.0
 
June 15, 2021, 7 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 27.0 ppb (25) N/A N/A 11.0 μg/m3 (46) 46.0
 
June 15, 2021, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 25.0 ppb (24) 0.2 ppb (3) N/A 9.9 μg/m3 (42) 42.0
 
June 15, 2021, 5 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 25.0 ppb (24) 0.2 ppb (3) N/A 7.5 μg/m3 (32) 32.0
 
June 15, 2021, 4 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 25.0 ppb (24) 0.1 ppb (2) N/A 6.3 μg/m3 (27) 27.0
 
June 15, 2021, 3 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 27.0 ppb (25) 0.2 ppb (3) N/A 6.5 μg/m3 (28) 28.0
 
June 15, 2021, 2 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 28.0 ppb (26) 0.2 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
June 15, 2021, 1 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (28) 0.2 ppb (3) N/A 8.2 μg/m3 (35) 35.0
 
June 15, 2021, midnight N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (28) 0.2 ppb (3) N/A 6.9 μg/m3 (29) 29.0
 
June 14, 2021, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 33.0 ppb (31) 0.2 ppb (3) N/A 5.7 μg/m3 (24) 31.0
 
June 14, 2021, 10 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 35.0 ppb (33) 0.2 ppb (3) N/A 5.5 μg/m3 (23) 33.0
 
June 14, 2021, 9 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 45.0 ppb (42) 0.2 ppb (3) N/A 6.4 μg/m3 (27) 42.0
 
June 14, 2021, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 42.0 ppb (39) 0.2 ppb (3) N/A 7.3 μg/m3 (31) 39.0
 
June 14, 2021, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 36.0 ppb (34) 0.1 ppb (2) N/A 8.1 μg/m3 (34) 34.0
 
June 14, 2021, 6 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 35.0 ppb (33) 0.1 ppb (2) N/A 8.0 μg/m3 (34) 34.0
 
June 14, 2021, 5 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 35.0 ppb (33) 0.1 ppb (2) N/A 7.8 μg/m3 (33) 33.0
 
June 14, 2021, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 38.0 ppb (36) 0.2 ppb (3) N/A 7.1 μg/m3 (30) 36.0
 
June 14, 2021, 3 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 37.0 ppb (35) 0.1 ppb (2) N/A 6.1 μg/m3 (26) 35.0
 
June 14, 2021, 2 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 37.0 ppb (35) 0.1 ppb (2) N/A 5.8 μg/m3 (25) 35.0
 
June 14, 2021, 1 p.m. N/A N/A N/A 11.0 ppb (11) N/A 2.0 ppb (3) 25.0 ppb (24) 0.2 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
June 14, 2021, noon N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 25.0 ppb (24) 0.2 ppb (3) N/A 5.4 μg/m3 (23) 24.0
 
June 14, 2021, 11 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 17.0 ppb (16) 0.2 ppb (3) N/A 5.3 μg/m3 (23) 23.0
 
June 14, 2021, 10 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 7.0 ppb (7) 0.2 ppb (3) N/A 5.0 μg/m3 (21) 21.0
 
June 14, 2021, 9 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 10.0 ppb (10) 0.2 ppb (3) N/A 4.7 μg/m3 (20) 20.0
 
June 14, 2021, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 20.0 ppb (19) 0.1 ppb (2) N/A 4.7 μg/m3 (20) 20.0
 
June 14, 2021, 7 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 24.0 ppb (23) 0.1 ppb (2) N/A 4.3 μg/m3 (18) 23.0
 
June 14, 2021, 6 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (30) 0.1 ppb (2) N/A 4.4 μg/m3 (19) 30.0
 
June 14, 2021, 5 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (32) 0.1 ppb (2) N/A 4.2 μg/m3 (18) 32.0
 
June 14, 2021, 4 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 34.0 ppb (32) 0.1 ppb (2) N/A 4.5 μg/m3 (19) 32.0
 
June 14, 2021, 3 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 33.0 ppb (31) 0.1 ppb (2) N/A 4.6 μg/m3 (20) 31.0
 
June 14, 2021, 2 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (32) 0.1 ppb (2) N/A 4.4 μg/m3 (19) 32.0
 
June 14, 2021, 1 a.m. N/A N/A N/A 13.0 ppb (13) N/A 1.0 ppb (2) 27.0 ppb (25) 0.1 ppb (2) N/A 4.4 μg/m3 (19) 25.0
 
June 14, 2021, midnight N/A N/A N/A 10.0 ppb (10) N/A 1.0 ppb (2) 32.0 ppb (30) 0.1 ppb (2) N/A 4.1 μg/m3 (18) 30.0
 
June 13, 2021, 11 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 41.0 ppb (38) 0.1 ppb (2) N/A 4.0 μg/m3 (17) 38.0
 
June 13, 2021, 10 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 41.0 ppb (38) 0.1 ppb (2) N/A 4.2 μg/m3 (18) 38.0
 
June 13, 2021, 9 p.m. N/A N/A N/A 0.0 ppb (0) N/A 1.0 ppb (2) 43.0 ppb (40) 0.1 ppb (2) N/A 4.3 μg/m3 (18) 40.0
 
June 13, 2021, 8 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 43.0 ppb (40) 0.1 ppb (2) N/A 4.8 μg/m3 (20) 40.0
 
June 13, 2021, 7 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 38.0 ppb (36) 0.1 ppb (2) N/A 6.1 μg/m3 (26) 36.0
 
June 13, 2021, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (33) 0.1 ppb (2) N/A 6.3 μg/m3 (27) 33.0
 
June 13, 2021, 5 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 36.0 ppb (34) 0.1 ppb (2) N/A 5.5 μg/m3 (23) 34.0
 
June 13, 2021, 4 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 35.0 ppb (33) 0.1 ppb (2) N/A 5.2 μg/m3 (22) 33.0
 
June 13, 2021, 3 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 33.0 ppb (31) 0.1 ppb (2) N/A 5.7 μg/m3 (24) 31.0
 
June 13, 2021, 2 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 31.0 ppb (29) 0.1 ppb (2) N/A 6.5 μg/m3 (28) 29.0
 
June 13, 2021, 1 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (28) 0.1 ppb (2) N/A 6.7 μg/m3 (28) 28.0
 
June 13, 2021, noon N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 29.0 ppb (27) 0.1 ppb (2) N/A 6.5 μg/m3 (28) 28.0
 
June 13, 2021, 11 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (25) 0.1 ppb (2) N/A 6.7 μg/m3 (28) 28.0
 
June 13, 2021, 10 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 25.0 ppb (24) 0.1 ppb (2) N/A 6.6 μg/m3 (28) 28.0
 
June 13, 2021, 9 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 25.0 ppb (24) 0.1 ppb (2) N/A 6.6 μg/m3 (28) 28.0
 
June 13, 2021, 8 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 25.0 ppb (24) 0.1 ppb (2) N/A 6.7 μg/m3 (28) 28.0
 
June 13, 2021, 7 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 25.0 ppb (24) 0.1 ppb (2) N/A 6.7 μg/m3 (28) 28.0
 
June 13, 2021, 6 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 28.0 ppb (26) 0.1 ppb (2) N/A 7.3 μg/m3 (31) 31.0
 
June 13, 2021, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (27) 0.1 ppb (2) N/A N/A 27.0
 
June 13, 2021, 4 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 28.0 ppb (26) 0.1 ppb (2) N/A 7.3 μg/m3 (31) 31.0
 
June 13, 2021, 3 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 28.0 ppb (26) 0.1 ppb (2) N/A 7.6 μg/m3 (32) 32.0
 
June 13, 2021, 2 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 28.0 ppb (26) 0.1 ppb (2) N/A 7.2 μg/m3 (31) 31.0
 
June 13, 2021, 1 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 29.0 ppb (27) 0.1 ppb (2) N/A 7.0 μg/m3 (30) 30.0
 
June 13, 2021, midnight N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 29.0 ppb (27) 0.1 ppb (2) N/A 7.0 μg/m3 (30) 30.0
 
June 12, 2021, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (30) 0.1 ppb (2) N/A 5.7 μg/m3 (24) 30.0
 
June 12, 2021, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (31) 0.1 ppb (2) N/A 5.3 μg/m3 (23) 31.0
 
June 12, 2021, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (31) 0.1 ppb (2) N/A 5.8 μg/m3 (25) 31.0
 
June 12, 2021, 8 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 33.0 ppb (31) 0.1 ppb (2) N/A 6.3 μg/m3 (27) 31.0
 
June 12, 2021, 7 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 33.0 ppb (31) 0.1 ppb (2) N/A 5.2 μg/m3 (22) 31.0
 
June 12, 2021, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (31) 0.1 ppb (2) N/A 6.6 μg/m3 (28) 31.0
 
June 12, 2021, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (33) 0.1 ppb (2) N/A 5.7 μg/m3 (24) 33.0
 
June 12, 2021, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (33) 0.1 ppb (2) N/A 4.5 μg/m3 (19) 33.0
 
June 12, 2021, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (31) 0.1 ppb (2) N/A 4.7 μg/m3 (20) 31.0
 
June 12, 2021, 2 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (27) 0.1 ppb (2) N/A 3.9 μg/m3 (17) 27.0
 
June 12, 2021, 1 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (25) 0.1 ppb (2) N/A 0.9 μg/m3 (4) 25.0
 
June 12, 2021, noon N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (25) 0.1 ppb (2) N/A 1.5 μg/m3 (7) 25.0
 
June 12, 2021, 11 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 28.0 ppb (26) 0.1 ppb (2) N/A 2.3 μg/m3 (10) 26.0
 
June 12, 2021, 10 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 28.0 ppb (26) 0.1 ppb (2) N/A 2.9 μg/m3 (13) 26.0
 
June 12, 2021, 9 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) N/A 0.1 ppb (2) N/A 2.8 μg/m3 (12) 12.0
 
June 12, 2021, 8 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 29.0 ppb (27) 0.1 ppb (2) N/A 4.5 μg/m3 (19) 27.0
 
June 12, 2021, 7 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (25) N/A N/A 8.5 μg/m3 (36) 36.0
 
June 12, 2021, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.1 ppb (2) N/A 8.9 μg/m3 (38) 38.0
 
June 12, 2021, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (28) 0.1 ppb (2) N/A N/A 28.0
 
June 12, 2021, 4 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (31) 0.1 ppb (2) N/A 6.4 μg/m3 (27) 31.0
 
June 12, 2021, 3 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (31) 0.1 ppb (2) N/A 6.5 μg/m3 (28) 31.0
 
June 12, 2021, 2 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (31) 0.1 ppb (2) N/A 6.2 μg/m3 (26) 31.0
 
June 12, 2021, 1 a.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 29.0 ppb (27) 0.1 ppb (2) N/A 6.4 μg/m3 (27) 27.0
 
June 12, 2021, midnight N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (30) 0.1 ppb (2) N/A 6.5 μg/m3 (28) 30.0
 
June 11, 2021, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (33) 0.1 ppb (2) N/A 6.0 μg/m3 (25) 33.0
 
June 11, 2021, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 38.0 ppb (36) 0.1 ppb (2) N/A 5.8 μg/m3 (25) 36.0
 
June 11, 2021, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 36.0 ppb (34) 0.1 ppb (2) N/A 5.2 μg/m3 (22) 34.0
 
June 11, 2021, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 35.0 ppb (33) 0.1 ppb (2) N/A 4.6 μg/m3 (20) 33.0
 
June 11, 2021, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 36.0 ppb (34) 0.1 ppb (2) N/A 5.6 μg/m3 (24) 34.0
 
June 11, 2021, 6 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (32) 0.1 ppb (2) N/A 5.8 μg/m3 (25) 32.0
 
June 11, 2021, 5 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (32) 0.2 ppb (3) N/A 6.7 μg/m3 (28) 32.0
 
June 11, 2021, 4 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 26.0 ppb (25) 0.2 ppb (3) N/A 7.3 μg/m3 (31) 31.0
 
June 11, 2021, 3 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 24.0 ppb (23) 0.2 ppb (3) N/A 7.2 μg/m3 (31) 31.0
 
June 11, 2021, 2 p.m. N/A N/A N/A 5.0 ppb (5) N/A 0.0 ppb (0) 20.0 ppb (19) 0.2 ppb (3) N/A 6.7 μg/m3 (28) 28.0
 
June 11, 2021, 1 p.m. N/A N/A N/A 8.0 ppb (8) N/A 0.0 ppb (0) 15.0 ppb (14) 0.2 ppb (3) N/A 6.2 μg/m3 (26) 26.0
 
June 11, 2021, noon N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 17.0 ppb (16) 0.2 ppb (3) N/A 5.5 μg/m3 (23) 23.0
 
June 11, 2021, 11 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 18.0 ppb (17) 0.1 ppb (2) N/A 5.4 μg/m3 (23) 23.0
 
June 11, 2021, 10 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 18.0 ppb (17) 0.1 ppb (2) N/A 5.5 μg/m3 (23) 23.0
 
June 11, 2021, 9 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 21.0 ppb (20) 0.1 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
June 11, 2021, 8 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 24.0 ppb (23) 0.1 ppb (2) N/A 6.1 μg/m3 (26) 26.0
 
June 11, 2021, 7 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 22.0 ppb (21) 0.2 ppb (3) N/A 6.9 μg/m3 (29) 29.0
 
June 11, 2021, 6 a.m. N/A N/A N/A 10.0 ppb (10) N/A 0.0 ppb (0) 16.0 ppb (15) 0.2 ppb (3) N/A 6.9 μg/m3 (29) 29.0
 
June 11, 2021, 5 a.m. N/A N/A N/A 7.0 ppb (7) N/A 0.0 ppb (0) 18.0 ppb (17) 0.2 ppb (3) N/A 5.8 μg/m3 (25) 25.0
 
June 11, 2021, 4 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 24.0 ppb (23) 0.2 ppb (3) N/A 5.4 μg/m3 (23) 23.0
 
June 11, 2021, 3 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 22.0 ppb (21) 0.2 ppb (3) N/A 5.2 μg/m3 (22) 22.0
 
June 11, 2021, 2 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 28.0 ppb (26) 0.2 ppb (3) N/A 5.1 μg/m3 (22) 26.0
 
June 11, 2021, 1 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (29) 0.1 ppb (2) N/A 5.5 μg/m3 (23) 29.0
 
June 11, 2021, midnight N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (32) 0.1 ppb (2) N/A 5.9 μg/m3 (25) 32.0
 
June 10, 2021, 11 p.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 35.0 ppb (33) 0.2 ppb (3) N/A 6.3 μg/m3 (27) 33.0
 
June 10, 2021, 10 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 52.0 ppb (49) 0.2 ppb (3) N/A 7.9 μg/m3 (33) 49.0
 
June 10, 2021, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 50.0 ppb (47) 0.2 ppb (3) N/A 8.5 μg/m3 (36) 47.0
 
June 10, 2021, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 44.0 ppb (41) 0.2 ppb (3) N/A 8.3 μg/m3 (35) 41.0
 
June 10, 2021, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 39.0 ppb (37) 0.2 ppb (3) N/A 8.7 μg/m3 (37) 37.0
 
June 10, 2021, 6 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 36.0 ppb (34) 0.2 ppb (3) N/A 7.3 μg/m3 (31) 34.0
 
June 10, 2021, 5 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 42.0 ppb (39) 0.1 ppb (2) N/A 7.5 μg/m3 (32) 39.0
 
June 10, 2021, 4 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 38.0 ppb (36) 0.2 ppb (3) N/A 8.2 μg/m3 (35) 36.0
 
June 10, 2021, 3 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 37.0 ppb (35) 0.2 ppb (3) N/A 7.5 μg/m3 (32) 35.0
 
June 10, 2021, 2 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (28) 0.2 ppb (3) N/A 7.2 μg/m3 (31) 31.0
 
June 10, 2021, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A 6.5 μg/m3 (28) 28.0
 
June 10, 2021, noon N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 14.0 ppb (13) 0.2 ppb (3) N/A 6.1 μg/m3 (26) 26.0
 
June 10, 2021, 11 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 12.0 ppb (12) 0.2 ppb (3) N/A 6.2 μg/m3 (26) 26.0
 
June 10, 2021, 10 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 15.0 ppb (14) 0.2 ppb (3) N/A 6.7 μg/m3 (28) 28.0
 
June 10, 2021, 9 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 14.0 ppb (13) 0.2 ppb (3) N/A 6.8 μg/m3 (29) 29.0
 
June 10, 2021, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 16.0 ppb (15) 0.2 ppb (3) N/A 6.5 μg/m3 (28) 28.0
 
June 10, 2021, 7 a.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 17.0 ppb (16) 0.2 ppb (3) N/A 6.3 μg/m3 (27) 27.0
 
June 10, 2021, 6 a.m. N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 17.0 ppb (16) 0.2 ppb (3) N/A 6.2 μg/m3 (26) 26.0
 
June 10, 2021, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 18.0 ppb (17) 0.2 ppb (3) N/A N/A 17.0
 
June 10, 2021, 4 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 22.0 ppb (21) 0.2 ppb (3) N/A 5.7 μg/m3 (24) 24.0
 
June 10, 2021, 3 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (25) 0.1 ppb (2) N/A 5.4 μg/m3 (23) 25.0
 
June 10, 2021, 2 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (30) 0.1 ppb (2) N/A 5.9 μg/m3 (25) 30.0
 
June 10, 2021, 1 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (27) 0.2 ppb (3) N/A 5.2 μg/m3 (22) 27.0
 
June 10, 2021, midnight N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (25) 0.2 ppb (3) N/A 5.1 μg/m3 (22) 25.0
 
June 9, 2021, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 28.0 ppb (26) 0.2 ppb (3) N/A 4.7 μg/m3 (20) 26.0
 
June 9, 2021, 10 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 24.0 ppb (23) 0.2 ppb (3) N/A 4.7 μg/m3 (20) 23.0
 
June 9, 2021, 9 p.m. N/A N/A N/A 7.0 ppb (7) N/A 0.0 ppb (0) 23.0 ppb (22) 0.2 ppb (3) N/A 4.6 μg/m3 (20) 22.0
 
June 9, 2021, 8 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (30) 0.2 ppb (3) N/A 4.6 μg/m3 (20) 30.0
 
June 9, 2021, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (33) 0.2 ppb (3) N/A 5.9 μg/m3 (25) 33.0
 
June 9, 2021, 6 p.m. N/A N/A N/A 4.0 ppb (4) N/A 2.0 ppb (3) 33.0 ppb (31) 0.2 ppb (3) N/A 7.9 μg/m3 (33) 33.0
 
June 9, 2021, 5 p.m. N/A N/A N/A 4.0 ppb (4) N/A 2.0 ppb (3) 34.0 ppb (32) 0.2 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
June 9, 2021, 4 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 34.0 ppb (32) 0.2 ppb (3) N/A 7.7 μg/m3 (33) 33.0
 
June 9, 2021, 3 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 31.0 ppb (29) 0.2 ppb (3) N/A 7.3 μg/m3 (31) 31.0
 
June 9, 2021, 2 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 30.0 ppb (28) 0.2 ppb (3) N/A 6.8 μg/m3 (29) 29.0
 
June 9, 2021, 1 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 24.0 ppb (23) 0.2 ppb (3) N/A 6.7 μg/m3 (28) 28.0
 
June 9, 2021, noon N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 20.0 ppb (19) 0.2 ppb (3) N/A 5.9 μg/m3 (25) 25.0
 
June 9, 2021, 11 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 15.0 ppb (14) 0.2 ppb (3) N/A 5.7 μg/m3 (24) 24.0
 
June 9, 2021, 10 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 15.0 ppb (14) 0.2 ppb (3) N/A 5.5 μg/m3 (23) 23.0
 
June 9, 2021, 9 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) N/A 0.1 ppb (2) N/A 5.4 μg/m3 (23) 23.0
 
June 9, 2021, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 20.0 ppb (19) 0.1 ppb (2) N/A 5.2 μg/m3 (22) 22.0
 
June 9, 2021, 7 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 20.0 ppb (19) N/A N/A 5.5 μg/m3 (23) 23.0
 
June 9, 2021, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 23.0 ppb (22) 0.1 ppb (2) N/A 5.6 μg/m3 (24) 24.0
 
June 9, 2021, 5 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 24.0 ppb (23) 0.1 ppb (2) N/A 5.9 μg/m3 (25) 25.0
 
June 9, 2021, 4 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 24.0 ppb (23) 0.1 ppb (2) N/A 6.6 μg/m3 (28) 28.0
 
June 9, 2021, 3 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 25.0 ppb (24) 0.2 ppb (3) N/A 6.6 μg/m3 (28) 28.0
 
June 9, 2021, 2 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 28.0 ppb (26) 0.2 ppb (3) N/A 6.3 μg/m3 (27) 27.0
 
June 9, 2021, 1 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (28) 0.2 ppb (3) N/A 5.9 μg/m3 (25) 28.0
 
June 9, 2021, midnight N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 32.0 ppb (30) 0.1 ppb (2) N/A 5.8 μg/m3 (25) 30.0
 
June 8, 2021, 11 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 35.0 ppb (33) 0.2 ppb (3) N/A 5.9 μg/m3 (25) 33.0
 
June 8, 2021, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 35.0 ppb (33) 0.1 ppb (2) N/A 5.5 μg/m3 (23) 33.0
 
June 8, 2021, 9 p.m. N/A N/A N/A 5.0 ppb (5) N/A 2.0 ppb (3) 33.0 ppb (31) 0.1 ppb (2) N/A 5.6 μg/m3 (24) 31.0
 
June 8, 2021, 8 p.m. N/A N/A N/A 4.0 ppb (4) N/A 2.0 ppb (3) 33.0 ppb (31) 0.1 ppb (2) N/A 5.8 μg/m3 (25) 31.0
 
June 8, 2021, 7 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 32.0 ppb (30) 0.1 ppb (2) N/A 6.0 μg/m3 (25) 30.0
 
June 8, 2021, 6 p.m. N/A N/A N/A 4.0 ppb (4) N/A 2.0 ppb (3) 29.0 ppb (27) 0.1 ppb (2) N/A 5.9 μg/m3 (25) 27.0
 
June 8, 2021, 5 p.m. N/A N/A N/A 4.0 ppb (4) N/A 2.0 ppb (3) N/A 0.1 ppb (2) N/A 5.4 μg/m3 (23) 23.0
 
June 8, 2021, 4 p.m. N/A N/A N/A 5.0 ppb (5) N/A 2.0 ppb (3) 28.0 ppb (26) 0.1 ppb (2) N/A N/A 26.0
 
June 8, 2021, 3 p.m. N/A N/A N/A 4.0 ppb (4) N/A 2.0 ppb (3) 29.0 ppb (27) 0.1 ppb (2) N/A 4.9 μg/m3 (21) 27.0
 
June 8, 2021, 2 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 28.0 ppb (26) 0.1 ppb (2) N/A 4.7 μg/m3 (20) 26.0
 
June 8, 2021, 1 p.m. N/A N/A N/A 4.0 ppb (4) N/A 2.0 ppb (3) 25.0 ppb (24) 0.1 ppb (2) N/A 4.9 μg/m3 (21) 24.0
 
June 8, 2021, noon N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 22.0 ppb (21) 0.1 ppb (2) N/A 4.8 μg/m3 (20) 21.0
 
June 8, 2021, 11 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 13.0 ppb (13) 0.1 ppb (2) N/A 6.1 μg/m3 (26) 26.0