AQSQID: 100051002

Site Name: Seaford

Location: Seaford (Hurley Heights), DE

Reporting: True, Located: True

Current AQI: 23.0

Seaford (Hurley Heights) DE, US: 38.6444, -75.6131

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 27, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 3.6 μg/m3 (15) 23.0
 
Jan. 27, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 3.4 μg/m3 (14) 22.0
 
Jan. 27, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 3.8 μg/m3 (16) 18.0
 
Jan. 27, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 3.6 μg/m3 (15) 17.0
 
Jan. 27, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 3.5 μg/m3 (15) 18.0
 
Jan. 27, 2020, midnight N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 3.3 μg/m3 (14) 18.0
 
Jan. 26, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 2.8 μg/m3 (12) 20.0
 
Jan. 26, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 2.3 μg/m3 (10) 22.0
 
Jan. 26, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 2.0 μg/m3 (8) 24.0
 
Jan. 26, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 2.4 μg/m3 (10) 23.0
 
Jan. 26, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 2.4 μg/m3 (10) 23.0
 
Jan. 26, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 2.7 μg/m3 (11) 23.0
 
Jan. 26, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 2.8 μg/m3 (12) 22.0
 
Jan. 26, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 4.1 μg/m3 (17) 18.0
 
Jan. 26, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 4.5 μg/m3 (19) 19.0
 
Jan. 26, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 5.1 μg/m3 (21) 21.0
 
Jan. 26, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 4.9 μg/m3 (20) 20.0
 
Jan. 26, 2020, noon N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 4.5 μg/m3 (19) 19.0
 
Jan. 26, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 5.4 μg/m3 (23) 23.0
 
Jan. 26, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 4.8 μg/m3 (20) 20.0
 
Jan. 26, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 4.6 μg/m3 (19) 19.0
 
Jan. 26, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 4.5 μg/m3 (19) 19.0
 
Jan. 26, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 4.3 μg/m3 (18) 18.0
 
Jan. 26, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 4.9 μg/m3 (20) 20.0
 
Jan. 26, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 26, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 6.5 μg/m3 (27) 27.0
 
Jan. 26, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 5.4 μg/m3 (23) 23.0
 
Jan. 26, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 26, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 4.2 μg/m3 (18) 18.0
 
Jan. 26, 2020, midnight N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 3.9 μg/m3 (16) 19.0
 
Jan. 25, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 4.2 μg/m3 (18) 21.0
 
Jan. 25, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 4.4 μg/m3 (18) 22.0
 
Jan. 25, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 4.2 μg/m3 (18) 25.0
 
Jan. 25, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 4.0 μg/m3 (17) 25.0
 
Jan. 25, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 3.2 μg/m3 (13) 25.0
 
Jan. 25, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 2.9 μg/m3 (12) 25.0
 
Jan. 25, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 1.3 μg/m3 (5) 29.0
 
Jan. 25, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 1.6 μg/m3 (7) 27.0
 
Jan. 25, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 1.6 μg/m3 (7) 23.0
 
Jan. 25, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 0.7 μg/m3 (3) 25.0
 
Jan. 25, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 2.1 μg/m3 (9) 28.0
 
Jan. 25, 2020, noon N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 2.3 μg/m3 (10) 29.0
 
Jan. 25, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 2.9 μg/m3 (12) 28.0
 
Jan. 25, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 5.3 μg/m3 (22) 28.0
 
Jan. 25, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 6.9 μg/m3 (29) 29.0
 
Jan. 25, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 25, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 7.1 μg/m3 (30) 30.0
 
Jan. 25, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 7.2 μg/m3 (30) 30.0
 
Jan. 25, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 6.9 μg/m3 (29) 29.0
 
Jan. 25, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 25, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 6.7 μg/m3 (28) 29.0
 
Jan. 25, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 6.1 μg/m3 (25) 30.0
 
Jan. 25, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 5.6 μg/m3 (23) 29.0
 
Jan. 25, 2020, midnight N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 5.2 μg/m3 (22) 29.0
 
Jan. 24, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 5.2 μg/m3 (22) 28.0
 
Jan. 24, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 4.7 μg/m3 (20) 29.0
 
Jan. 24, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 4.2 μg/m3 (18) 30.0
 
Jan. 24, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 4.2 μg/m3 (18) 29.0
 
Jan. 24, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 4.0 μg/m3 (17) 30.0
 
Jan. 24, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 4.3 μg/m3 (18) 29.0
 
Jan. 24, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 3.9 μg/m3 (16) 28.0
 
Jan. 24, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 5.5 μg/m3 (23) 25.0
 
Jan. 24, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 8.3 μg/m3 (35) 35.0
 
Jan. 24, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 11.9 μg/m3 (50) 50.0
 
Jan. 24, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A N/A 15.3 μg/m3 (57) 57.0
 
Jan. 24, 2020, noon N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A N/A 16.9 μg/m3 (60) 60.0
 
Jan. 24, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A N/A 16.8 μg/m3 (60) 60.0
 
Jan. 24, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A N/A 17.5 μg/m3 (62) 62.0
 
Jan. 24, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A N/A 19.3 μg/m3 (66) 66.0
 
Jan. 24, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A N/A 20.0 μg/m3 (67) 67.0
 
Jan. 24, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A N/A 20.5 μg/m3 (68) 68.0
 
Jan. 24, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 18.9 μg/m3 (65) 65.0
 
Jan. 24, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A N/A 17.5 μg/m3 (62) 62.0
 
Jan. 24, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 17.0 μg/m3 (61) 61.0
 
Jan. 24, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A N/A 16.6 μg/m3 (60) 60.0
 
Jan. 24, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 15.3 μg/m3 (57) 57.0
 
Jan. 24, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 13.9 μg/m3 (54) 54.0
 
Jan. 24, 2020, midnight N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 14.1 μg/m3 (54) 54.0
 
Jan. 23, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 13.3 μg/m3 (53) 53.0
 
Jan. 23, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 13.4 μg/m3 (53) 53.0
 
Jan. 23, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 12.8 μg/m3 (52) 52.0
 
Jan. 23, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 13.3 μg/m3 (53) 53.0
 
Jan. 23, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.3 μg/m3 (53) 53.0
 
Jan. 23, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 15.2 μg/m3 (57) 57.0
 
Jan. 23, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 14.7 μg/m3 (56) 56.0
 
Jan. 23, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 14.2 μg/m3 (55) 55.0
 
Jan. 23, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 15.6 μg/m3 (58) 58.0
 
Jan. 23, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 15.4 μg/m3 (57) 57.0
 
Jan. 23, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A N/A 18.8 μg/m3 (64) 64.0
 
Jan. 23, 2020, noon N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 19.6 μg/m3 (66) 66.0
 
Jan. 23, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 22.9 μg/m3 (73) 73.0
 
Jan. 23, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 17.7 μg/m3 (62) 62.0
 
Jan. 23, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 16.7 μg/m3 (60) 60.0
 
Jan. 23, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (2) N/A N/A 15.8 μg/m3 (58) 58.0
 
Jan. 23, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 17.4 μg/m3 (61) 61.0
 
Jan. 23, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 16.3 μg/m3 (59) 59.0
 
Jan. 23, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 21.1 μg/m3 (69) 69.0
 
Jan. 23, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 18.6 μg/m3 (64) 64.0
 
Jan. 23, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 15.3 μg/m3 (57) 57.0
 
Jan. 23, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A N/A 12.7 μg/m3 (51) 51.0
 
Jan. 23, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A N/A 12.2 μg/m3 (50) 50.0
 
Jan. 23, 2020, midnight N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 12.2 μg/m3 (50) 50.0
 
Jan. 22, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 11.3 μg/m3 (47) 47.0
 
Jan. 22, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 8.5 μg/m3 (35) 35.0
 
Jan. 22, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 8.9 μg/m3 (37) 37.0
 
Jan. 22, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 8.9 μg/m3 (37) 37.0
 
Jan. 22, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 22, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 22, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 22, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 8.8 μg/m3 (37) 37.0
 
Jan. 22, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 9.7 μg/m3 (40) 40.0
 
Jan. 22, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 11.4 μg/m3 (48) 48.0
 
Jan. 22, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 11.4 μg/m3 (48) 48.0
 
Jan. 22, 2020, noon N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A N/A 12.0 μg/m3 (50) 50.0
 
Jan. 22, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A N/A 12.0 μg/m3 (50) 50.0
 
Jan. 22, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 12.0 μg/m3 (50) 50.0
 
Jan. 22, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 12.0 μg/m3 (50) 50.0
 
Jan. 22, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 11.6 μg/m3 (48) 48.0
 
Jan. 22, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 11.3 μg/m3 (47) 47.0
 
Jan. 22, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 10.2 μg/m3 (42) 42.0
 
Jan. 22, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 8.8 μg/m3 (37) 37.0
 
Jan. 22, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 8.4 μg/m3 (35) 35.0
 
Jan. 22, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 8.5 μg/m3 (35) 35.0
 
Jan. 22, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 8.2 μg/m3 (34) 34.0
 
Jan. 22, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 7.9 μg/m3 (33) 33.0
 
Jan. 22, 2020, midnight N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 8.1 μg/m3 (34) 34.0
 
Jan. 21, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 7.4 μg/m3 (31) 31.0
 
Jan. 21, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 21, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 6.7 μg/m3 (28) 28.0
 
Jan. 21, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 5.9 μg/m3 (25) 28.0
 
Jan. 21, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 5.6 μg/m3 (23) 29.0
 
Jan. 21, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 5.1 μg/m3 (21) 29.0
 
Jan. 21, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 4.9 μg/m3 (20) 29.0
 
Jan. 21, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 4.7 μg/m3 (20) 29.0
 
Jan. 21, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 4.5 μg/m3 (19) 28.0
 
Jan. 21, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 4.4 μg/m3 (18) 28.0
 
Jan. 21, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 4.2 μg/m3 (18) 25.0
 
Jan. 21, 2020, noon N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 4.2 μg/m3 (18) 25.0
 
Jan. 21, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 4.4 μg/m3 (18) 24.0
 
Jan. 21, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 4.3 μg/m3 (18) 24.0
 
Jan. 21, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 4.1 μg/m3 (17) 23.0
 
Jan. 21, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 3.6 μg/m3 (15) 25.0
 
Jan. 21, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 3.5 μg/m3 (15) 27.0
 
Jan. 21, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 3.8 μg/m3 (16) 27.0
 
Jan. 21, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 4.4 μg/m3 (18) 25.0
 
Jan. 21, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 4.3 μg/m3 (18) 26.0
 
Jan. 21, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 4.4 μg/m3 (18) 26.0
 
Jan. 21, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 4.4 μg/m3 (18) 23.0
 
Jan. 21, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 4.3 μg/m3 (18) 24.0
 
Jan. 21, 2020, midnight N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 4.5 μg/m3 (19) 27.0
 
Jan. 20, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 4.0 μg/m3 (17) 28.0
 
Jan. 20, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 3.9 μg/m3 (16) 29.0
 
Jan. 20, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 3.7 μg/m3 (15) 30.0
 
Jan. 20, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 3.7 μg/m3 (15) 31.0
 
Jan. 20, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 3.9 μg/m3 (16) 31.0
 
Jan. 20, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 3.8 μg/m3 (16) 31.0
 
Jan. 20, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 3.7 μg/m3 (15) 30.0
 
Jan. 20, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 3.6 μg/m3 (15) 30.0
 
Jan. 20, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 3.6 μg/m3 (15) 29.0
 
Jan. 20, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 3.8 μg/m3 (16) 28.0
 
Jan. 20, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 4.7 μg/m3 (20) 25.0
 
Jan. 20, 2020, noon N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 6.4 μg/m3 (27) 27.0
 
Jan. 20, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 8.5 μg/m3 (35) 35.0
 
Jan. 20, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 20, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 8.7 μg/m3 (36) 36.0
 
Jan. 20, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A N/A 9.1 μg/m3 (38) 38.0
 
Jan. 20, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 8.9 μg/m3 (37) 37.0
 
Jan. 20, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 9.4 μg/m3 (39) 39.0