ID: 1954

AQSQID: 516500008

Site Name: Hampton

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

Updated: Jan. 16, 2021, 4:31 p.m.

Location: Hampton (Langley Air Force Base), VA

Reporting: True, Located: True

Current AQI: 36.0

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
Jan. 16, 2021, 3 p.m. N/A N/A N/A 5.0 ppb (5) N/A 2.0 ppb (3) 25.0 ppb (24) 0.3 ppb (4) N/A 8.4 μg/m3 (36) 36.0
 
Jan. 16, 2021, 2 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 25.0 ppb (24) 0.3 ppb (4) N/A 9.2 μg/m3 (39) 39.0
 
Jan. 16, 2021, 1 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 23.0 ppb (22) 0.3 ppb (4) N/A 8.4 μg/m3 (36) 36.0
 
Jan. 16, 2021, noon N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 23.0 ppb (22) 0.3 ppb (4) N/A 6.7 μg/m3 (28) 28.0
 
Jan. 16, 2021, 11 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 24.0 ppb (23) 0.3 ppb (4) N/A 5.0 μg/m3 (21) 23.0
 
Jan. 16, 2021, 10 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 25.0 ppb (24) 0.2 ppb (3) N/A 3.8 μg/m3 (16) 24.0
 
Jan. 16, 2021, 9 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) N/A 0.2 ppb (3) N/A 2.8 μg/m3 (12) 12.0
 
Jan. 16, 2021, 8 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 30.0 ppb (28) 0.2 ppb (3) N/A 3.4 μg/m3 (15) 28.0
 
Jan. 16, 2021, 7 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 2.8 μg/m3 (12) 32.0
 
Jan. 16, 2021, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 37.0 ppb (35) 0.2 ppb (3) N/A 4.1 μg/m3 (18) 35.0
 
Jan. 16, 2021, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 39.0 ppb (37) 0.2 ppb (3) N/A 8.1 μg/m3 (34) 37.0
 
Jan. 16, 2021, 4 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 27.0 ppb (25) 0.3 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 16, 2021, 3 a.m. N/A N/A N/A 9.0 ppb (9) N/A 1.0 ppb (2) 12.0 ppb (12) 0.3 ppb (4) N/A 11.2 μg/m3 (47) 47.0
 
Jan. 16, 2021, 2 a.m. N/A N/A N/A 11.0 ppb (11) N/A 1.0 ppb (2) 13.0 ppb (13) 0.3 ppb (4) N/A 13.7 μg/m3 (55) 55.0
 
Jan. 16, 2021, 1 a.m. N/A N/A N/A 10.0 ppb (10) N/A 1.0 ppb (2) 11.0 ppb (11) 0.3 ppb (4) N/A 15.1 μg/m3 (58) 58.0
 
Jan. 16, 2021, midnight N/A N/A N/A 10.0 ppb (10) N/A 1.0 ppb (2) 19.0 ppb (18) 0.3 ppb (4) N/A 14.9 μg/m3 (57) 57.0
 
Jan. 15, 2021, 11 p.m. N/A N/A N/A 11.0 ppb (11) N/A 1.0 ppb (2) 24.0 ppb (23) 0.2 ppb (3) N/A 14.0 μg/m3 (55) 55.0
 
Jan. 15, 2021, 10 p.m. N/A N/A N/A 8.0 ppb (8) N/A 2.0 ppb (3) 34.0 ppb (32) 0.2 ppb (3) N/A 12.9 μg/m3 (53) 53.0
 
Jan. 15, 2021, 9 p.m. N/A N/A N/A 5.0 ppb (5) N/A 2.0 ppb (3) 39.0 ppb (37) 0.2 ppb (3) N/A 8.4 μg/m3 (36) 37.0
 
Jan. 15, 2021, 8 p.m. N/A N/A N/A 4.0 ppb (4) N/A 2.0 ppb (3) 41.0 ppb (38) 0.2 ppb (3) N/A 1.0 μg/m3 (5) 38.0
 
Jan. 15, 2021, 7 p.m. N/A N/A N/A 4.0 ppb (4) N/A 2.0 ppb (3) 41.0 ppb (38) 0.2 ppb (3) N/A -3.1 μg/m3 (0) 38.0
 
Jan. 15, 2021, 6 p.m. N/A N/A N/A 4.0 ppb (4) N/A 2.0 ppb (3) 35.0 ppb (33) 0.2 ppb (3) N/A -1.3 μg/m3 (0) 33.0
 
Jan. 15, 2021, 5 p.m. N/A N/A N/A 7.0 ppb (7) N/A 2.0 ppb (3) 27.0 ppb (25) 0.2 ppb (3) N/A 2.4 μg/m3 (10) 25.0
 
Jan. 15, 2021, 4 p.m. N/A N/A N/A 9.0 ppb (9) N/A 2.0 ppb (3) 21.0 ppb (20) 0.2 ppb (3) N/A 7.5 μg/m3 (32) 32.0
 
Jan. 15, 2021, 3 p.m. N/A N/A N/A 12.0 ppb (12) N/A 2.0 ppb (3) 16.0 ppb (15) 0.3 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 15, 2021, 2 p.m. N/A N/A N/A 12.0 ppb (12) N/A 1.0 ppb (2) 13.0 ppb (13) 0.3 ppb (4) N/A 13.2 μg/m3 (54) 54.0
 
Jan. 15, 2021, 1 p.m. N/A N/A N/A 16.0 ppb (16) N/A 1.0 ppb (2) 7.0 ppb (7) 0.4 ppb (5) N/A 14.8 μg/m3 (57) 57.0
 
Jan. 15, 2021, noon N/A N/A N/A 20.0 ppb (19) N/A 1.0 ppb (2) 1.0 ppb (1) 0.4 ppb (5) N/A 14.7 μg/m3 (57) 57.0
 
Jan. 15, 2021, 11 a.m. N/A N/A N/A 23.0 ppb (22) N/A 1.0 ppb (2) -1.0 ppb (0) 0.4 ppb (5) N/A 16.1 μg/m3 (60) 60.0
 
Jan. 15, 2021, 10 a.m. N/A N/A N/A 15.0 ppb (15) N/A 1.0 ppb (2) -1.0 ppb (0) 0.6 ppb (7) N/A 17.1 μg/m3 (62) 62.0
 
Jan. 15, 2021, 9 a.m. N/A N/A N/A 16.0 ppb (16) N/A 1.0 ppb (2) -1.0 ppb (0) 0.6 ppb (7) N/A 16.6 μg/m3 (61) 61.0
 
Jan. 15, 2021, 8 a.m. N/A N/A N/A 17.0 ppb (17) N/A 1.0 ppb (2) -1.0 ppb (0) 0.5 ppb (6) N/A 16.3 μg/m3 (60) 60.0
 
Jan. 15, 2021, 7 a.m. N/A N/A N/A 21.0 ppb (20) N/A 1.0 ppb (2) 0.0 ppb (0) 0.5 ppb (6) N/A 15.3 μg/m3 (58) 58.0
 
Jan. 15, 2021, 6 a.m. N/A N/A N/A 19.0 ppb (18) N/A 1.0 ppb (2) 0.0 ppb (0) 0.5 ppb (6) N/A 13.3 μg/m3 (54) 54.0
 
Jan. 15, 2021, 5 a.m. N/A N/A N/A 17.0 ppb (17) N/A 1.0 ppb (2) 1.0 ppb (1) 0.4 ppb (5) N/A 12.2 μg/m3 (52) 52.0
 
Jan. 15, 2021, 4 a.m. N/A N/A N/A 11.0 ppb (11) N/A 1.0 ppb (2) 7.0 ppb (7) 0.3 ppb (4) N/A 12.4 μg/m3 (52) 52.0
 
Jan. 15, 2021, 3 a.m. N/A N/A N/A 10.0 ppb (10) N/A 1.0 ppb (2) 13.0 ppb (13) 0.3 ppb (4) N/A 12.3 μg/m3 (52) 52.0
 
Jan. 15, 2021, 2 a.m. N/A N/A N/A 10.0 ppb (10) N/A 1.0 ppb (2) 14.0 ppb (13) 0.3 ppb (4) N/A 14.2 μg/m3 (56) 56.0
 
Jan. 15, 2021, 1 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 22.0 ppb (21) 0.2 ppb (3) N/A 15.7 μg/m3 (59) 59.0
 
Jan. 15, 2021, midnight N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 29.0 ppb (27) 0.2 ppb (3) N/A 21.1 μg/m3 (70) 70.0
 
Jan. 14, 2021, 11 p.m. N/A N/A N/A 4.0 ppb (4) N/A 2.0 ppb (3) 31.0 ppb (29) 0.2 ppb (3) N/A 22.6 μg/m3 (74) 74.0
 
Jan. 14, 2021, 10 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 32.0 ppb (30) 0.2 ppb (3) N/A 14.4 μg/m3 (56) 56.0
 
Jan. 14, 2021, 9 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 35.0 ppb (33) 0.2 ppb (3) N/A 3.0 μg/m3 (13) 33.0
 
Jan. 14, 2021, 8 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 35.0 ppb (33) 0.2 ppb (3) N/A -4.0 μg/m3 (0) 33.0
 
Jan. 14, 2021, 7 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 34.0 ppb (32) 0.2 ppb (3) N/A -4.6 μg/m3 (0) 32.0
 
Jan. 14, 2021, 6 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 33.0 ppb (31) 0.2 ppb (3) N/A 0.1 μg/m3 (1) 31.0
 
Jan. 14, 2021, 5 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 26.0 ppb (25) 0.2 ppb (3) N/A 4.8 μg/m3 (20) 25.0
 
Jan. 14, 2021, 4 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 25.0 ppb (24) 0.2 ppb (3) N/A 7.4 μg/m3 (31) 31.0
 
Jan. 14, 2021, 3 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 22.0 ppb (21) 0.2 ppb (3) N/A 7.6 μg/m3 (32) 32.0
 
Jan. 14, 2021, 2 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 19.0 ppb (18) 0.3 ppb (4) N/A 8.7 μg/m3 (37) 37.0
 
Jan. 14, 2021, 1 p.m. N/A N/A N/A 15.0 ppb (15) N/A 1.0 ppb (2) 7.0 ppb (7) 0.4 ppb (5) N/A 9.3 μg/m3 (39) 39.0
 
Jan. 14, 2021, noon N/A N/A N/A 19.0 ppb (18) N/A 1.0 ppb (2) 2.0 ppb (2) 0.4 ppb (5) N/A 9.9 μg/m3 (42) 42.0
 
Jan. 14, 2021, 11 a.m. N/A N/A N/A 15.0 ppb (15) N/A 1.0 ppb (2) 6.0 ppb (6) 0.3 ppb (4) N/A 10.2 μg/m3 (43) 43.0
 
Jan. 14, 2021, 10 a.m. N/A N/A N/A 8.0 ppb (8) N/A 1.0 ppb (2) 15.0 ppb (14) 0.2 ppb (3) N/A 7.5 μg/m3 (32) 32.0
 
Jan. 14, 2021, 9 a.m. N/A N/A N/A 10.0 ppb (10) N/A 1.0 ppb (2) 18.0 ppb (17) 0.2 ppb (3) N/A 6.1 μg/m3 (26) 26.0
 
Jan. 14, 2021, 8 a.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 18.0 ppb (17) 0.2 ppb (3) N/A 6.8 μg/m3 (29) 29.0
 
Jan. 14, 2021, 7 a.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 18.0 ppb (17) 0.2 ppb (3) N/A 7.1 μg/m3 (30) 30.0
 
Jan. 14, 2021, 6 a.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 21.0 ppb (20) 0.2 ppb (3) N/A 6.6 μg/m3 (28) 28.0
 
Jan. 14, 2021, 5 a.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 20.0 ppb (19) 0.2 ppb (3) N/A 7.2 μg/m3 (31) 31.0
 
Jan. 14, 2021, 4 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 23.0 ppb (22) 0.2 ppb (3) N/A 6.3 μg/m3 (27) 27.0
 
Jan. 14, 2021, 3 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 27.0 ppb (25) 0.2 ppb (3) N/A 7.3 μg/m3 (31) 31.0
 
Jan. 14, 2021, 2 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 26.0 ppb (25) 0.2 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 14, 2021, 1 a.m. N/A N/A N/A 10.0 ppb (10) N/A 1.0 ppb (2) 22.0 ppb (21) 0.3 ppb (4) N/A 12.5 μg/m3 (52) 52.0
 
Jan. 14, 2021, midnight N/A N/A N/A 21.0 ppb (20) N/A 1.0 ppb (2) 10.0 ppb (10) 0.5 ppb (6) N/A 15.6 μg/m3 (59) 59.0
 
Jan. 13, 2021, 11 p.m. N/A N/A N/A 13.0 ppb (13) N/A 1.0 ppb (2) 18.0 ppb (17) 0.3 ppb (4) N/A 14.8 μg/m3 (57) 57.0
 
Jan. 13, 2021, 10 p.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 29.0 ppb (27) 0.2 ppb (3) N/A 7.2 μg/m3 (31) 31.0
 
Jan. 13, 2021, 9 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 33.0 ppb (31) 0.2 ppb (3) N/A -0.4 μg/m3 (0) 31.0
 
Jan. 13, 2021, 7 p.m. N/A N/A N/A 4.0 ppb (4) N/A 2.0 ppb (3) 32.0 ppb (30) 0.1 ppb (2) N/A -4.9 μg/m3 (0) 30.0
 
Jan. 13, 2021, 6 p.m. N/A N/A N/A 5.0 ppb (5) N/A 2.0 ppb (3) 30.0 ppb (28) 0.2 ppb (3) N/A -2.9 μg/m3 (0) 28.0
 
Jan. 13, 2021, 5 p.m. N/A N/A N/A 5.0 ppb (5) N/A 2.0 ppb (3) 32.0 ppb (30) 0.2 ppb (3) N/A -0.5 μg/m3 (0) 30.0
 
Jan. 13, 2021, 4 p.m. N/A N/A N/A 7.0 ppb (7) N/A 2.0 ppb (3) 26.0 ppb (25) 0.2 ppb (3) N/A 6.9 μg/m3 (29) 29.0
 
Jan. 13, 2021, 3 p.m. N/A N/A N/A 10.0 ppb (10) N/A 1.0 ppb (2) 14.0 ppb (13) 0.3 ppb (4) N/A 13.7 μg/m3 (55) 55.0
 
Jan. 13, 2021, 2 p.m. N/A N/A N/A 16.0 ppb (16) N/A 1.0 ppb (2) 7.0 ppb (7) 0.5 ppb (6) N/A 13.3 μg/m3 (54) 54.0
 
Jan. 13, 2021, 1 p.m. N/A N/A N/A 15.0 ppb (15) N/A 1.0 ppb (2) 0.0 ppb (0) 0.5 ppb (6) N/A 12.4 μg/m3 (52) 52.0
 
Jan. 13, 2021, noon N/A N/A N/A 18.0 ppb (17) N/A 1.0 ppb (2) 0.0 ppb (0) 0.5 ppb (6) N/A 14.7 μg/m3 (57) 57.0
 
Jan. 13, 2021, 11 a.m. N/A N/A N/A 19.0 ppb (18) N/A 1.0 ppb (2) -1.0 ppb (0) 0.5 ppb (6) N/A 15.9 μg/m3 (59) 59.0
 
Jan. 13, 2021, 10 a.m. N/A N/A N/A 16.0 ppb (16) N/A 1.0 ppb (2) -1.0 ppb (0) 0.6 ppb (7) N/A 15.6 μg/m3 (59) 59.0
 
Jan. 13, 2021, 9 a.m. N/A N/A N/A 14.0 ppb (14) N/A 1.0 ppb (2) N/A 0.6 ppb (7) N/A 15.5 μg/m3 (59) 59.0
 
Jan. 13, 2021, 8 a.m. N/A N/A N/A 13.0 ppb (13) N/A N/A -1.0 ppb (0) 0.5 ppb (6) N/A 18.6 μg/m3 (65) 65.0
 
Jan. 13, 2021, 7 a.m. N/A N/A N/A 14.0 ppb (14) N/A 1.0 ppb (2) -1.0 ppb (0) N/A N/A 19.9 μg/m3 (68) 68.0
 
Jan. 13, 2021, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 0.0 ppb (0) 0.5 ppb (6) N/A 20.5 μg/m3 (69) 69.0
 
Jan. 13, 2021, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 0.0 ppb (0) 0.5 ppb (6) N/A 19.5 μg/m3 (67) 67.0
 
Jan. 13, 2021, 4 a.m. N/A N/A N/A 19.0 ppb (18) N/A 1.0 ppb (2) 0.0 ppb (0) 0.5 ppb (6) N/A 17.5 μg/m3 (63) 63.0
 
Jan. 13, 2021, 3 a.m. N/A N/A N/A 19.0 ppb (18) N/A 1.0 ppb (2) 2.0 ppb (2) 0.4 ppb (5) N/A 15.8 μg/m3 (59) 59.0
 
Jan. 13, 2021, 2 a.m. N/A N/A N/A 18.0 ppb (17) N/A 1.0 ppb (2) 2.0 ppb (2) 0.4 ppb (5) N/A 17.4 μg/m3 (63) 63.0
 
Jan. 13, 2021, 1 a.m. N/A N/A N/A 15.0 ppb (15) N/A 1.0 ppb (2) 6.0 ppb (6) 0.4 ppb (5) N/A 18.4 μg/m3 (65) 65.0
 
Jan. 13, 2021, midnight N/A N/A N/A 9.0 ppb (9) N/A 1.0 ppb (2) 19.0 ppb (18) 0.3 ppb (4) N/A 18.2 μg/m3 (64) 64.0
 
Jan. 12, 2021, 11 p.m. N/A N/A N/A 10.0 ppb (10) N/A 1.0 ppb (2) 18.0 ppb (17) 0.2 ppb (3) N/A 19.1 μg/m3 (66) 66.0
 
Jan. 12, 2021, 10 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 28.0 ppb (26) 0.2 ppb (3) N/A 15.1 μg/m3 (58) 58.0
 
Jan. 12, 2021, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 32.0 ppb (30) 0.1 ppb (2) N/A 5.2 μg/m3 (22) 30.0
 
Jan. 12, 2021, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 34.0 ppb (32) 0.1 ppb (2) N/A 0.0 μg/m3 (0) 32.0
 
Jan. 12, 2021, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A 2.0 ppb (3) 34.0 ppb (32) 0.1 ppb (2) N/A -0.8 μg/m3 (0) 32.0
 
Jan. 12, 2021, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A 2.0 ppb (3) 32.0 ppb (30) 0.1 ppb (2) N/A 2.5 μg/m3 (11) 30.0
 
Jan. 12, 2021, 5 p.m. N/A N/A N/A 3.0 ppb (3) N/A 2.0 ppb (3) 29.0 ppb (27) 0.2 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Jan. 12, 2021, 4 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 8.0 μg/m3 (34) 34.0
 
Jan. 12, 2021, 3 p.m. N/A N/A N/A 4.0 ppb (4) N/A 2.0 ppb (3) 24.0 ppb (23) 0.2 ppb (3) N/A 7.5 μg/m3 (32) 32.0
 
Jan. 12, 2021, 2 p.m. N/A N/A N/A 6.0 ppb (6) N/A 2.0 ppb (3) 21.0 ppb (20) 0.2 ppb (3) N/A 6.7 μg/m3 (28) 28.0
 
Jan. 12, 2021, 1 p.m. N/A N/A N/A 11.0 ppb (11) N/A 1.0 ppb (2) 8.0 ppb (8) 0.3 ppb (4) N/A 7.8 μg/m3 (33) 33.0
 
Jan. 12, 2021, noon N/A N/A N/A 12.0 ppb (12) N/A 1.0 ppb (2) 9.0 ppb (9) 0.2 ppb (3) N/A 7.2 μg/m3 (31) 31.0
 
Jan. 12, 2021, 11 a.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 17.0 ppb (16) 0.2 ppb (3) N/A 6.2 μg/m3 (26) 26.0
 
Jan. 12, 2021, 10 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 20.0 ppb (19) 0.2 ppb (3) N/A 8.0 μg/m3 (34) 34.0
 
Jan. 12, 2021, 9 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 23.0 ppb (22) 0.2 ppb (3) N/A 7.2 μg/m3 (31) 31.0
 
Jan. 12, 2021, 8 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 23.0 ppb (22) 0.2 ppb (3) N/A 7.7 μg/m3 (33) 33.0
 
Jan. 12, 2021, 7 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 23.0 ppb (22) 0.2 ppb (3) N/A 7.4 μg/m3 (31) 31.0
 
Jan. 12, 2021, 6 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 25.0 ppb (24) 0.1 ppb (2) N/A 7.4 μg/m3 (31) 31.0
 
Jan. 12, 2021, 5 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 27.0 ppb (25) 0.2 ppb (3) N/A 7.0 μg/m3 (30) 30.0
 
Jan. 12, 2021, 4 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 26.0 ppb (25) 0.2 ppb (3) N/A 6.6 μg/m3 (28) 28.0
 
Jan. 12, 2021, 3 a.m. N/A N/A N/A 5.0 ppb (5) N/A 2.0 ppb (3) 26.0 ppb (25) 0.2 ppb (3) N/A 5.6 μg/m3 (24) 25.0
 
Jan. 12, 2021, 2 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 28.0 ppb (26) 0.2 ppb (3) N/A 5.8 μg/m3 (25) 26.0
 
Jan. 12, 2021, 1 a.m. N/A N/A N/A 6.0 ppb (6) N/A 2.0 ppb (3) 26.0 ppb (25) 0.2 ppb (3) N/A 8.2 μg/m3 (35) 35.0
 
Jan. 12, 2021, midnight N/A N/A N/A 14.0 ppb (14) N/A 2.0 ppb (3) 18.0 ppb (17) 0.2 ppb (3) N/A 8.6 μg/m3 (36) 36.0
 
Jan. 11, 2021, 11 p.m. N/A N/A N/A 13.0 ppb (13) N/A 2.0 ppb (3) 17.0 ppb (16) 0.2 ppb (3) N/A 7.1 μg/m3 (30) 30.0
 
Jan. 11, 2021, 10 p.m. N/A N/A N/A 10.0 ppb (10) N/A 1.0 ppb (2) 22.0 ppb (21) 0.2 ppb (3) N/A 6.7 μg/m3 (28) 28.0
 
Jan. 11, 2021, 9 p.m. N/A N/A N/A 8.0 ppb (8) N/A 1.0 ppb (2) 25.0 ppb (24) 0.2 ppb (3) N/A 4.4 μg/m3 (19) 24.0
 
Jan. 11, 2021, 8 p.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 26.0 ppb (25) 0.2 ppb (3) N/A 4.8 μg/m3 (20) 25.0
 
Jan. 11, 2021, 7 p.m. N/A N/A N/A 8.0 ppb (8) N/A 2.0 ppb (3) 26.0 ppb (25) 0.2 ppb (3) N/A 3.3 μg/m3 (14) 25.0
 
Jan. 11, 2021, 6 p.m. N/A N/A N/A 7.0 ppb (7) N/A 2.0 ppb (3) 27.0 ppb (25) N/A N/A 2.7 μg/m3 (12) 25.0
 
Jan. 11, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.9 μg/m3 (29) 29.0
 
Jan. 11, 2021, 4 p.m. N/A N/A N/A 9.0 ppb (9) N/A N/A N/A 0.3 ppb (4) N/A 7.0 μg/m3 (30) 30.0
 
Jan. 11, 2021, 3 p.m. N/A N/A N/A 12.0 ppb (12) N/A 1.0 ppb (2) 17.0 ppb (16) 0.4 ppb (5) N/A 7.8 μg/m3 (33) 33.0
 
Jan. 11, 2021, 2 p.m. N/A N/A N/A 19.0 ppb (18) N/A 1.0 ppb (2) 9.0 ppb (9) 0.5 ppb (6) N/A 10.3 μg/m3 (43) 43.0
 
Jan. 11, 2021, 1 p.m. N/A N/A N/A 23.0 ppb (22) N/A 1.0 ppb (2) 1.0 ppb (1) 0.6 ppb (7) N/A 11.4 μg/m3 (48) 48.0
 
Jan. 11, 2021, noon N/A N/A N/A 19.0 ppb (18) N/A 1.0 ppb (2) -1.0 ppb (0) 0.7 ppb (8) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 11, 2021, 11 a.m. N/A N/A N/A 18.0 ppb (17) N/A 1.0 ppb (2) 0.0 ppb (0) 0.6 ppb (7) N/A 12.8 μg/m3 (53) 53.0
 
Jan. 11, 2021, 10 a.m. N/A N/A N/A 16.0 ppb (16) N/A 1.0 ppb (2) 0.0 ppb (0) 0.5 ppb (6) N/A 14.7 μg/m3 (57) 57.0
 
Jan. 11, 2021, 9 a.m. N/A N/A N/A 16.0 ppb (16) N/A 1.0 ppb (2) 0.0 ppb (0) 0.5 ppb (6) N/A 15.6 μg/m3 (59) 59.0
 
Jan. 11, 2021, 8 a.m. N/A N/A N/A 16.0 ppb (16) N/A 1.0 ppb (2) 0.0 ppb (0) 0.5 ppb (6) N/A 16.3 μg/m3 (60) 60.0
 
Jan. 11, 2021, 7 a.m. N/A N/A N/A 16.0 ppb (16) N/A 1.0 ppb (2) 0.0 ppb (0) 0.6 ppb (7) N/A 19.3 μg/m3 (67) 67.0
 
Jan. 11, 2021, 6 a.m. N/A N/A N/A 17.0 ppb (17) N/A 1.0 ppb (2) 0.0 ppb (0) 0.6 ppb (7) N/A 22.0 μg/m3 (72) 72.0
 
Jan. 11, 2021, 5 a.m. N/A N/A N/A 18.0 ppb (17) N/A 1.0 ppb (2) 0.0 ppb (0) 0.6 ppb (7) N/A 16.4 μg/m3 (61) 61.0
 
Jan. 11, 2021, 4 a.m. N/A N/A N/A 20.0 ppb (19) N/A 1.0 ppb (2) 0.0 ppb (0) 0.5 ppb (6) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 11, 2021, 3 a.m. N/A N/A N/A 14.0 ppb (14) N/A 1.0 ppb (2) 8.0 ppb (8) 0.4 ppb (5) N/A 10.1 μg/m3 (43) 43.0
 
Jan. 11, 2021, 2 a.m. N/A N/A N/A 9.0 ppb (9) N/A 1.0 ppb (2) 12.0 ppb (12) 0.4 ppb (5) N/A 10.5 μg/m3 (44) 44.0
 
Jan. 11, 2021, 1 a.m. N/A N/A N/A 8.0 ppb (8) N/A 1.0 ppb (2) 20.0 ppb (19) 0.4 ppb (5) N/A 10.3 μg/m3 (43) 43.0
 
Jan. 11, 2021, midnight N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 24.0 ppb (23) 0.3 ppb (4) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 10, 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 14.7 μg/m3 (57) 57.0
 
Jan. 10, 2021, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 35.0 ppb (33) 0.2 ppb (3) N/A 12.5 μg/m3 (52) 52.0
 
Jan. 10, 2021, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A 2.0 ppb (3) 36.0 ppb (34) 0.2 ppb (3) N/A 5.1 μg/m3 (22) 34.0
 
Jan. 10, 2021, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A 2.0 ppb (3) 37.0 ppb (35) 0.2 ppb (3) N/A -0.7 μg/m3 (0) 35.0
 
Jan. 10, 2021, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A 2.0 ppb (3) 36.0 ppb (34) 0.2 ppb (3) N/A -4.2 μg/m3 (0) 34.0
 
Jan. 10, 2021, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A 2.0 ppb (3) 36.0 ppb (34) 0.2 ppb (3) N/A -1.7 μg/m3 (0) 34.0
 
Jan. 10, 2021, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A 2.0 ppb (3) 35.0 ppb (33) 0.2 ppb (3) N/A 1.2 μg/m3 (5) 33.0
 
Jan. 10, 2021, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A 2.0 ppb (3) 33.0 ppb (31) 0.2 ppb (3) N/A 4.9 μg/m3 (21) 31.0
 
Jan. 10, 2021, 3 p.m. N/A N/A N/A 2.0 ppb (2) N/A 2.0 ppb (3) 32.0 ppb (30) 0.2 ppb (3) N/A 5.4 μg/m3 (23) 30.0
 
Jan. 10, 2021, 2 p.m. N/A N/A N/A 3.0 ppb (3) N/A 2.0 ppb (3) 30.0 ppb (28) 0.2 ppb (3) N/A 5.4 μg/m3 (23) 28.0
 
Jan. 10, 2021, 1 p.m. N/A N/A N/A 4.0 ppb (4) N/A 2.0 ppb (3) 24.0 ppb (23) 0.3 ppb (4) N/A 6.7 μg/m3 (28) 28.0
 
Jan. 10, 2021, noon N/A N/A N/A 5.0 ppb (5) N/A 2.0 ppb (3) 22.0 ppb (21) 0.3 ppb (4) N/A 9.6 μg/m3 (40) 40.0
 
Jan. 10, 2021, 11 a.m. N/A N/A N/A 4.0 ppb (4) N/A 2.0 ppb (3) 24.0 ppb (23) 0.3 ppb (4) N/A 6.2 μg/m3 (26) 26.0
 
Jan. 10, 2021, 10 a.m. N/A N/A N/A 3.0 ppb (3) N/A 2.0 ppb (3) 26.0 ppb (25) 0.2 ppb (3) N/A 5.5 μg/m3 (23) 25.0
 
Jan. 10, 2021, 9 a.m. N/A N/A N/A 2.0 ppb (2) N/A 2.0 ppb (3) N/A 0.2 ppb (3) N/A 7.4 μg/m3 (31) 31.0
 
Jan. 10, 2021, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 27.0 ppb (25) 0.2 ppb (3) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 10, 2021, 7 a.m. N/A N/A N/A 2.0 ppb (2) N/A 2.0 ppb (3) 29.0 ppb (27) N/A N/A 6.2 μg/m3 (26) 27.0
 
Jan. 10, 2021, 6 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 31.0 ppb (29) 0.2 ppb (3) N/A 5.3 μg/m3 (23) 29.0
 
Jan. 10, 2021, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 32.0 ppb (30) 0.2 ppb (3) N/A 3.4 μg/m3 (15) 30.0
 
Jan. 10, 2021, 4 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 32.0 ppb (30) 0.2 ppb (3) N/A 2.4 μg/m3 (10) 30.0
 
Jan. 10, 2021, 3 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 32.0 ppb (30) 0.2 ppb (3) N/A 4.0 μg/m3 (17) 30.0
 
Jan. 10, 2021, 2 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 32.0 ppb (30) 0.2 ppb (3) N/A 6.6 μg/m3 (28) 30.0
 
Jan. 10, 2021, 1 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 30.0 ppb (28) 0.2 ppb (3) N/A 6.5 μg/m3 (28) 28.0
 
Jan. 10, 2021, midnight N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 29.0 ppb (27) 0.2 ppb (3) N/A 7.2 μg/m3 (31) 31.0
 
Jan. 9, 2021, 11 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 33.0 ppb (31) 0.2 ppb (3) N/A 7.3 μg/m3 (31) 31.0
 
Jan. 9, 2021, 10 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 32.0 ppb (30) 0.2 ppb (3) N/A 7.1 μg/m3 (30) 30.0
 
Jan. 9, 2021, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 35.0 ppb (33) 0.2 ppb (3) N/A 4.2 μg/m3 (18) 33.0
 
Jan. 9, 2021, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 35.0 ppb (33) 0.2 ppb (3) N/A 0.3 μg/m3 (2) 33.0
 
Jan. 9, 2021, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 34.0 ppb (32) 0.2 ppb (3) N/A -1.6 μg/m3 (0) 32.0
 
Jan. 9, 2021, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 34.0 ppb (32) 0.2 ppb (3) N/A -0.2 μg/m3 (0) 32.0
 
Jan. 9, 2021, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A 2.0 ppb (3) 33.0 ppb (31) 0.2 ppb (3) N/A 0.2 μg/m3 (1) 31.0
 
Jan. 9, 2021, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 32.0 ppb (30) 0.2 ppb (3) N/A 4.0 μg/m3 (17) 30.0
 
Jan. 9, 2021, 3 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 31.0 ppb (29) 0.2 ppb (3) N/A 5.2 μg/m3 (22) 29.0