AQSQID: 100032004

Site Name: Mlk

Location: Wilmington (Justison Landing), DE

Reporting: True, Located: True

Current AQI: 24.0

Wilmington (Justison Landing) DE, US: 39.7394, -75.5581

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 27, 2020, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 4.0 ppb (3) 0.31 ppb (3) N/A 5.8 μg/m3 (24) 24.0
 
Jan. 27, 2020, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 12.0 ppb (9) N/A N/A 5.1 μg/m3 (21) 21.0
 
Jan. 27, 2020, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 17.0 ppb (13) 0.21 ppb (2) N/A 3.9 μg/m3 (16) 16.0
 
Jan. 27, 2020, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (15) 0.19 ppb (2) N/A 3.8 μg/m3 (16) 16.0
 
Jan. 27, 2020, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (15) 0.21 ppb (2) N/A 5.1 μg/m3 (21) 21.0
 
Jan. 26, 2020, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 21.0 ppb (16) 0.21 ppb (2) N/A 4.4 μg/m3 (18) 18.0
 
Jan. 26, 2020, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (15) 0.22 ppb (2) N/A 4.2 μg/m3 (18) 18.0
 
Jan. 26, 2020, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (15) 0.23 ppb (3) N/A 4.2 μg/m3 (18) 18.0
 
Jan. 26, 2020, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (17) 0.21 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
Jan. 26, 2020, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (18) 0.2 ppb (2) N/A 3.8 μg/m3 (16) 18.0
 
Jan. 26, 2020, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (18) 0.19 ppb (2) N/A 3.2 μg/m3 (13) 18.0
 
Jan. 26, 2020, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (15) 0.19 ppb (2) N/A 3.9 μg/m3 (16) 16.0
 
Jan. 26, 2020, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 21.0 ppb (16) 0.2 ppb (2) N/A 4.6 μg/m3 (19) 19.0
 
Jan. 26, 2020, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 17.0 ppb (13) 0.2 ppb (2) N/A 5.7 μg/m3 (24) 24.0
 
Jan. 26, 2020, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 13.0 ppb (10) 0.24 ppb (3) N/A 6.9 μg/m3 (29) 29.0
 
Jan. 26, 2020, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 8.0 ppb (6) 0.26 ppb (3) N/A 7.4 μg/m3 (31) 31.0
 
Jan. 26, 2020, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 6.0 ppb (5) 0.25 ppb (3) N/A 6.9 μg/m3 (29) 29.0
 
Jan. 26, 2020, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 4.0 ppb (3) 0.24 ppb (3) N/A 7.3 μg/m3 (30) 30.0
 
Jan. 26, 2020, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 2.0 ppb (2) 0.26 ppb (3) N/A 8.2 μg/m3 (34) 34.0
 
Jan. 26, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 0.0 ppb (0) 0.3 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 26, 2020, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 1.0 ppb (1) 0.3 ppb (3) N/A 9.5 μg/m3 (40) 40.0
 
Jan. 26, 2020, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 2.0 ppb (2) 0.27 ppb (3) N/A 10.2 μg/m3 (42) 42.0
 
Jan. 26, 2020, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 3.0 ppb (2) 0.3 ppb (3) N/A 10.1 μg/m3 (42) 42.0
 
Jan. 26, 2020, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 5.0 ppb (4) 0.3 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 26, 2020, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 2.0 ppb (2) 0.39 ppb (4) N/A 13.3 μg/m3 (53) 53.0
 
Jan. 26, 2020, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 6.0 ppb (5) 0.34 ppb (4) N/A 12.3 μg/m3 (51) 51.0
 
Jan. 26, 2020, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 5.0 ppb (4) 0.37 ppb (4) N/A 12.1 μg/m3 (50) 50.0
 
Jan. 26, 2020, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 10.0 ppb (8) 0.32 ppb (4) N/A 11.3 μg/m3 (47) 47.0
 
Jan. 26, 2020, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 15.0 ppb (12) 0.25 ppb (3) N/A 7.9 μg/m3 (33) 33.0
 
Jan. 25, 2020, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (15) 0.22 ppb (2) N/A 6.9 μg/m3 (29) 29.0
 
Jan. 25, 2020, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (18) 0.2 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 25, 2020, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (18) 0.2 ppb (2) N/A 7.8 μg/m3 (32) 32.0
 
Jan. 25, 2020, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.18 ppb (2) N/A 4.0 μg/m3 (17) 22.0
 
Jan. 25, 2020, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.19 ppb (2) N/A 3.1 μg/m3 (13) 23.0
 
Jan. 25, 2020, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (17) 0.24 ppb (3) N/A 4.9 μg/m3 (20) 20.0
 
Jan. 25, 2020, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (17) 0.25 ppb (3) N/A 3.2 μg/m3 (13) 17.0
 
Jan. 25, 2020, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (18) 0.29 ppb (3) N/A 2.3 μg/m3 (10) 18.0
 
Jan. 25, 2020, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (18) 0.25 ppb (3) N/A 2.1 μg/m3 (9) 18.0
 
Jan. 25, 2020, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.16 ppb (2) N/A 2.6 μg/m3 (11) 25.0
 
Jan. 25, 2020, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.15 ppb (2) N/A 3.1 μg/m3 (13) 26.0
 
Jan. 25, 2020, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.14 ppb (2) N/A 4.1 μg/m3 (17) 26.0
 
Jan. 25, 2020, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.14 ppb (2) N/A 5.7 μg/m3 (24) 25.0
 
Jan. 25, 2020, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.13 ppb (1) N/A 6.5 μg/m3 (27) 27.0
 
Jan. 25, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.15 ppb (2) N/A 7.5 μg/m3 (31) 31.0
 
Jan. 25, 2020, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.18 ppb (2) N/A 9.3 μg/m3 (39) 39.0
 
Jan. 25, 2020, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 26.0 ppb (20) 0.19 ppb (2) N/A 8.9 μg/m3 (37) 37.0
 
Jan. 25, 2020, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.19 ppb (2) N/A 7.8 μg/m3 (32) 32.0
 
Jan. 25, 2020, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.2 ppb (2) N/A 7.3 μg/m3 (30) 30.0
 
Jan. 25, 2020, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.22 ppb (2) N/A 7.7 μg/m3 (32) 32.0
 
Jan. 25, 2020, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.2 ppb (2) N/A 8.3 μg/m3 (35) 35.0
 
Jan. 25, 2020, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.2 ppb (2) N/A 8.3 μg/m3 (35) 35.0
 
Jan. 25, 2020, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.19 ppb (2) N/A 6.8 μg/m3 (28) 28.0
 
Jan. 25, 2020, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.2 ppb (2) N/A 5.1 μg/m3 (21) 23.0
 
Jan. 24, 2020, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.18 ppb (2) N/A 3.3 μg/m3 (14) 26.0
 
Jan. 24, 2020, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.21 ppb (2) N/A 3.9 μg/m3 (16) 23.0
 
Jan. 24, 2020, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 30.0 ppb (23) 0.23 ppb (3) N/A 3.7 μg/m3 (15) 23.0
 
Jan. 24, 2020, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 32.0 ppb (25) 0.19 ppb (2) N/A 4.5 μg/m3 (19) 25.0
 
Jan. 24, 2020, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 28.0 ppb (22) 0.21 ppb (2) N/A 5.3 μg/m3 (22) 22.0
 
Jan. 24, 2020, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 28.0 ppb (22) N/A N/A 7.8 μg/m3 (32) 32.0
 
Jan. 24, 2020, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 22.0 ppb (17) 0.3 ppb (3) N/A 12.9 μg/m3 (52) 52.0
 
Jan. 24, 2020, 4 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 14.0 ppb (11) 0.42 ppb (5) N/A 18.3 μg/m3 (63) 63.0
 
Jan. 24, 2020, 3 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 9.0 ppb (7) 0.51 ppb (6) N/A 21.4 μg/m3 (70) 70.0
 
Jan. 24, 2020, 2 p.m. N/A N/A N/A N/A N/A 3.0 ppb (4) 7.0 ppb (5) 0.58 ppb (6) N/A 25.6 μg/m3 (79) 79.0
 
Jan. 24, 2020, 1 p.m. N/A N/A N/A N/A N/A 3.0 ppb (4) 2.0 ppb (2) 0.79 ppb (9) N/A 29.0 μg/m3 (86) 86.0
 
Jan. 24, 2020, noon N/A N/A N/A N/A N/A 2.0 ppb (3) 1.0 ppb (1) 0.73 ppb (8) N/A 23.6 μg/m3 (75) 75.0
 
Jan. 24, 2020, 11 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 0.0 ppb (0) 0.69 ppb (8) N/A 25.0 μg/m3 (78) 78.0
 
Jan. 24, 2020, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 0.0 ppb (0) 0.74 ppb (8) N/A 23.3 μg/m3 (74) 74.0
 
Jan. 24, 2020, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 0.0 ppb (0) 0.63 ppb (7) N/A 22.6 μg/m3 (73) 73.0
 
Jan. 24, 2020, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 0.0 ppb (0) 0.53 ppb (6) N/A 21.7 μg/m3 (71) 71.0
 
Jan. 24, 2020, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 0.0 ppb (0) 0.43 ppb (5) N/A 21.1 μg/m3 (69) 69.0
 
Jan. 24, 2020, 6 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 0.0 ppb (0) 0.49 ppb (5) N/A 20.8 μg/m3 (69) 69.0
 
Jan. 24, 2020, 5 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 1.0 ppb (1) 0.8 ppb (9) N/A 23.9 μg/m3 (75) 75.0
 
Jan. 24, 2020, 4 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 1.0 ppb (1) 0.74 ppb (8) N/A 26.6 μg/m3 (81) 81.0
 
Jan. 24, 2020, 3 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 1.0 ppb (1) 0.69 ppb (8) N/A 25.9 μg/m3 (80) 80.0
 
Jan. 24, 2020, 2 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 1.0 ppb (1) 0.74 ppb (8) N/A 25.1 μg/m3 (78) 78.0
 
Jan. 24, 2020, 1 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 0.0 ppb (0) 0.52 ppb (6) N/A 21.9 μg/m3 (71) 71.0
 
Jan. 24, 2020, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) 2.0 ppb (2) 0.45 ppb (5) N/A 21.8 μg/m3 (71) 71.0
 
Jan. 23, 2020, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 1.0 ppb (1) 0.46 ppb (5) N/A 22.5 μg/m3 (72) 72.0
 
Jan. 23, 2020, 10 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 1.0 ppb (1) 0.52 ppb (6) N/A 22.6 μg/m3 (73) 73.0
 
Jan. 23, 2020, 9 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 11.0 ppb (8) 0.29 ppb (3) N/A 20.5 μg/m3 (68) 68.0
 
Jan. 23, 2020, 8 p.m. N/A N/A N/A N/A N/A 3.0 ppb (4) 9.0 ppb (7) 0.28 ppb (3) N/A 23.7 μg/m3 (75) 75.0
 
Jan. 23, 2020, 7 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 15.0 ppb (12) 0.28 ppb (3) N/A 23.5 μg/m3 (74) 74.0
 
Jan. 23, 2020, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 16.0 ppb (12) 0.3 ppb (3) N/A 24.3 μg/m3 (76) 76.0
 
Jan. 23, 2020, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 17.0 ppb (13) 0.29 ppb (3) N/A 24.4 μg/m3 (76) 76.0
 
Jan. 23, 2020, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 12.0 ppb (9) 0.35 ppb (4) N/A 25.8 μg/m3 (79) 79.0
 
Jan. 23, 2020, 3 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 7.0 ppb (5) 0.45 ppb (5) N/A 28.8 μg/m3 (86) 86.0
 
Jan. 23, 2020, 2 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 4.0 ppb (3) 0.7 ppb (8) N/A 27.5 μg/m3 (83) 83.0
 
Jan. 23, 2020, 1 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 1.0 ppb (1) 1.01 ppb (11) N/A 30.9 μg/m3 (90) 90.0
 
Jan. 23, 2020, noon N/A N/A N/A N/A N/A 2.0 ppb (3) 1.0 ppb (1) 1.03 ppb (11) N/A 26.9 μg/m3 (82) 82.0
 
Jan. 23, 2020, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 0.0 ppb (0) 0.76 ppb (8) N/A 25.2 μg/m3 (78) 78.0
 
Jan. 23, 2020, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 0.0 ppb (0) 0.55 ppb (6) N/A 25.2 μg/m3 (78) 78.0
 
Jan. 23, 2020, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 0.0 ppb (0) 0.49 ppb (5) N/A 25.1 μg/m3 (78) 78.0
 
Jan. 23, 2020, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 0.0 ppb (0) 0.41 ppb (5) N/A 21.3 μg/m3 (70) 70.0
 
Jan. 23, 2020, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 0.0 ppb (0) 0.43 ppb (5) N/A 20.0 μg/m3 (67) 67.0
 
Jan. 23, 2020, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 1.0 ppb (1) 0.41 ppb (5) N/A 18.4 μg/m3 (64) 64.0
 
Jan. 23, 2020, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 3.0 ppb (2) 0.48 ppb (5) N/A 18.3 μg/m3 (63) 63.0
 
Jan. 23, 2020, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 1.0 ppb (1) 0.92 ppb (10) N/A 21.9 μg/m3 (71) 71.0
 
Jan. 23, 2020, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 1.0 ppb (1) 0.9 ppb (10) N/A 20.2 μg/m3 (67) 67.0
 
Jan. 23, 2020, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 1.0 ppb (1) 0.86 ppb (10) N/A 19.8 μg/m3 (67) 67.0
 
Jan. 23, 2020, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 1.0 ppb (1) 0.61 ppb (7) N/A 18.1 μg/m3 (63) 63.0
 
Jan. 23, 2020, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) 12.0 ppb (9) 0.38 ppb (4) N/A 16.5 μg/m3 (60) 60.0
 
Jan. 22, 2020, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 12.0 ppb (9) 0.67 ppb (7) N/A 14.1 μg/m3 (54) 54.0
 
Jan. 22, 2020, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 19.0 ppb (15) 0.42 ppb (5) N/A 12.4 μg/m3 (51) 51.0
 
Jan. 22, 2020, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.27 ppb (3) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 22, 2020, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.2 ppb (2) N/A 8.6 μg/m3 (36) 36.0
 
Jan. 22, 2020, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.18 ppb (2) N/A 8.9 μg/m3 (37) 37.0
 
Jan. 22, 2020, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 32.0 ppb (25) 0.19 ppb (2) N/A 8.6 μg/m3 (36) 36.0
 
Jan. 22, 2020, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.19 ppb (2) N/A 8.8 μg/m3 (37) 37.0
 
Jan. 22, 2020, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 31.0 ppb (24) 0.2 ppb (2) N/A 9.1 μg/m3 (38) 38.0
 
Jan. 22, 2020, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 29.0 ppb (22) 0.2 ppb (2) N/A 9.4 μg/m3 (39) 39.0
 
Jan. 22, 2020, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 25.0 ppb (19) 0.26 ppb (3) N/A 10.7 μg/m3 (45) 45.0
 
Jan. 22, 2020, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 16.0 ppb (12) 0.35 ppb (4) N/A 11.1 μg/m3 (46) 46.0
 
Jan. 22, 2020, noon N/A N/A N/A N/A N/A 1.0 ppb (1) 8.0 ppb (6) 0.44 ppb (5) N/A 12.1 μg/m3 (50) 50.0
 
Jan. 22, 2020, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 9.0 ppb (7) 0.37 ppb (4) N/A 12.7 μg/m3 (51) 51.0
 
Jan. 22, 2020, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 14.0 ppb (11) 0.27 ppb (3) 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 0.0 ppb (0) 15.0 ppb (12) 0.23 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
Jan. 22, 2020, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 12.0 ppb (9) 0.22 ppb (2) N/A 12.0 μg/m3 (50) 50.0
 
Jan. 22, 2020, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 10.0 ppb (8) 0.26 ppb (3) N/A 12.2 μg/m3 (50) 50.0
 
Jan. 22, 2020, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 11.0 ppb (8) 0.33 ppb (4) N/A 11.7 μg/m3 (49) 49.0
 
Jan. 22, 2020, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 9.0 ppb (7) 0.3 ppb (3) N/A 11.6 μg/m3 (48) 48.0
 
Jan. 22, 2020, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 9.0 ppb (7) 0.37 ppb (4) N/A 12.9 μg/m3 (52) 52.0
 
Jan. 22, 2020, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 15.0 ppb (12) 0.35 ppb (4) N/A 11.6 μg/m3 (48) 48.0
 
Jan. 22, 2020, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 18.0 ppb (14) 0.37 ppb (4) N/A 10.7 μg/m3 (45) 45.0
 
Jan. 22, 2020, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (15) 0.27 ppb (3) N/A 9.4 μg/m3 (39) 39.0
 
Jan. 22, 2020, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 19.0 ppb (15) 0.29 ppb (3) N/A 9.1 μg/m3 (38) 38.0
 
Jan. 21, 2020, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 22.0 ppb (17) 0.28 ppb (3) N/A 5.8 μg/m3 (24) 24.0
 
Jan. 21, 2020, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 27.0 ppb (21) 0.3 ppb (3) N/A 5.5 μg/m3 (23) 23.0
 
Jan. 21, 2020, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.25 ppb (3) N/A 5.5 μg/m3 (23) 23.0
 
Jan. 21, 2020, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.22 ppb (2) N/A 5.8 μg/m3 (24) 25.0
 
Jan. 21, 2020, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.22 ppb (2) N/A 5.5 μg/m3 (23) 25.0
 
Jan. 21, 2020, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.21 ppb (2) N/A 5.5 μg/m3 (23) 26.0
 
Jan. 21, 2020, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.2 ppb (2) N/A 4.8 μg/m3 (20) 27.0
 
Jan. 21, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (2) N/A 4.9 μg/m3 (20) 20.0
 
Jan. 21, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A 0.2 ppb (2) N/A 5.9 μg/m3 (25) 25.0
 
Jan. 21, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A 0.21 ppb (2) N/A 5.8 μg/m3 (24) 24.0
 
Jan. 21, 2020, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 19.0 ppb (15) 0.29 ppb (3) N/A 5.7 μg/m3 (24) 24.0
 
Jan. 21, 2020, noon N/A N/A N/A N/A N/A 1.0 ppb (1) 11.0 ppb (8) 0.33 ppb (4) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 21, 2020, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 18.0 ppb (14) 0.25 ppb (3) N/A 4.3 μg/m3 (18) 18.0
 
Jan. 21, 2020, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 16.0 ppb (12) 0.2 ppb (2) N/A 4.3 μg/m3 (18) 18.0
 
Jan. 21, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (18) 0.17 ppb (2) N/A 4.1 μg/m3 (17) 18.0
 
Jan. 21, 2020, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.16 ppb (2) N/A 4.1 μg/m3 (17) 23.0
 
Jan. 21, 2020, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.16 ppb (2) N/A 4.1 μg/m3 (17) 24.0
 
Jan. 21, 2020, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.17 ppb (2) N/A 4.2 μg/m3 (18) 25.0
 
Jan. 21, 2020, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.19 ppb (2) N/A 5.5 μg/m3 (23) 23.0
 
Jan. 21, 2020, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.24 ppb (3) N/A 6.7 μg/m3 (28) 28.0
 
Jan. 21, 2020, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (18) 0.26 ppb (3) N/A 6.3 μg/m3 (26) 26.0
 
Jan. 21, 2020, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (18) 0.25 ppb (3) N/A 6.2 μg/m3 (26) 26.0
 
Jan. 21, 2020, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (17) 0.22 ppb (2) N/A 6.2 μg/m3 (26) 26.0
 
Jan. 21, 2020, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (18) 0.21 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2020, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 5.4 μg/m3 (23) 23.0
 
Jan. 20, 2020, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.2 ppb (2) N/A 4.9 μg/m3 (20) 24.0
 
Jan. 20, 2020, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.21 ppb (2) N/A 4.0 μg/m3 (17) 26.0
 
Jan. 20, 2020, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.2 ppb (2) N/A 3.4 μg/m3 (14) 28.0
 
Jan. 20, 2020, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.17 ppb (2) N/A 3.6 μg/m3 (15) 28.0
 
Jan. 20, 2020, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.17 ppb (2) N/A 3.7 μg/m3 (15) 28.0
 
Jan. 20, 2020, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.17 ppb (2) N/A 3.6 μg/m3 (15) 28.0
 
Jan. 20, 2020, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.17 ppb (2) N/A 3.5 μg/m3 (15) 28.0
 
Jan. 20, 2020, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.17 ppb (2) N/A 3.4 μg/m3 (14) 27.0
 
Jan. 20, 2020, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.17 ppb (2) N/A 3.4 μg/m3 (14) 26.0
 
Jan. 20, 2020, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.18 ppb (2) N/A 3.6 μg/m3 (15) 22.0
 
Jan. 20, 2020, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (18) 0.21 ppb (2) N/A 3.2 μg/m3 (13) 18.0
 
Jan. 20, 2020, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.16 ppb (2) N/A 3.1 μg/m3 (13) 25.0
 
Jan. 20, 2020, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.15 ppb (2) N/A 3.1 μg/m3 (13) 20.0
 
Jan. 20, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.14 ppb (2) N/A 3.4 μg/m3 (14) 21.0
 
Jan. 20, 2020, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (18) 0.16 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 20, 2020, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (17) 0.17 ppb (2) N/A 9.7 μg/m3 (40) 40.0
 
Jan. 20, 2020, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (17) 0.16 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
Jan. 20, 2020, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (17) 0.17 ppb (2) N/A 10.5 μg/m3 (44) 44.0