AQSQID: 100032004

Site Name: Mlk

Location: Wilmington (Justison Landing), DE

Reporting: True, Located: True

Current AQI: 58.0

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
March 30, 2020, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 18.0 ppb (14) 0.28 ppb (3) N/A 15.8 μg/m3 (58) 58.0
 
March 30, 2020, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 16.0 ppb (12) 0.3 ppb (3) N/A 17.5 μg/m3 (62) 62.0
 
March 30, 2020, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 14.0 ppb (11) 0.32 ppb (4) N/A 18.2 μg/m3 (63) 63.0
 
March 30, 2020, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 13.0 ppb (10) 0.34 ppb (4) N/A 17.2 μg/m3 (61) 61.0
 
March 29, 2020, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 19.0 ppb (15) 0.28 ppb (3) N/A 15.7 μg/m3 (58) 58.0
 
March 29, 2020, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 16.0 ppb (12) 0.28 ppb (3) N/A 18.9 μg/m3 (65) 65.0
 
March 29, 2020, 9 p.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 16.2 μg/m3 (59) 59.0
 
March 29, 2020, 8 p.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 13.7 μg/m3 (54) 54.0
 
March 29, 2020, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.23 ppb (3) N/A 12.2 μg/m3 (50) 50.0
 
March 29, 2020, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.23 ppb (3) N/A 10.4 μg/m3 (43) 43.0
 
March 29, 2020, 5 p.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 11.7 μg/m3 (49) 49.0
 
March 29, 2020, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.23 ppb (3) N/A 11.9 μg/m3 (50) 50.0
 
March 29, 2020, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.22 ppb (2) N/A 10.6 μg/m3 (44) 44.0
 
March 29, 2020, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.22 ppb (2) N/A 9.5 μg/m3 (40) 40.0
 
March 29, 2020, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.19 ppb (2) N/A 6.8 μg/m3 (28) 28.0
 
March 29, 2020, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.17 ppb (2) N/A 6.5 μg/m3 (27) 29.0
 
March 29, 2020, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.19 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
March 29, 2020, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.18 ppb (2) N/A 8.5 μg/m3 (35) 35.0
 
March 29, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.19 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
March 29, 2020, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.22 ppb (2) N/A 8.9 μg/m3 (37) 37.0
 
March 29, 2020, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.23 ppb (3) N/A 6.6 μg/m3 (28) 28.0
 
March 29, 2020, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.23 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
March 29, 2020, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.23 ppb (3) N/A 8.3 μg/m3 (35) 35.0
 
March 29, 2020, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.24 ppb (3) N/A 10.7 μg/m3 (45) 45.0
 
March 29, 2020, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (19) 0.27 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
March 29, 2020, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.23 ppb (3) N/A 7.2 μg/m3 (30) 30.0
 
March 29, 2020, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.25 ppb (3) N/A 6.9 μg/m3 (29) 29.0
 
March 29, 2020, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.25 ppb (3) N/A 9.3 μg/m3 (39) 39.0
 
March 28, 2020, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.25 ppb (3) N/A 7.7 μg/m3 (32) 32.0
 
March 28, 2020, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.24 ppb (3) N/A 5.7 μg/m3 (24) 27.0
 
March 28, 2020, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.23 ppb (3) N/A 4.7 μg/m3 (20) 29.0
 
March 28, 2020, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.22 ppb (2) N/A 5.0 μg/m3 (21) 30.0
 
March 28, 2020, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.22 ppb (2) N/A 5.6 μg/m3 (23) 31.0
 
March 28, 2020, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 43.0 ppb (33) 0.21 ppb (2) N/A 5.1 μg/m3 (21) 33.0
 
March 28, 2020, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.21 ppb (2) N/A 5.5 μg/m3 (23) 31.0
 
March 28, 2020, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.21 ppb (2) N/A 6.3 μg/m3 (26) 30.0
 
March 28, 2020, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.22 ppb (2) N/A 8.3 μg/m3 (35) 35.0
 
March 28, 2020, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.23 ppb (3) N/A 9.2 μg/m3 (38) 38.0
 
March 28, 2020, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (18) 0.3 ppb (3) N/A 14.0 μg/m3 (54) 54.0
 
March 28, 2020, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (18) 0.24 ppb (3) N/A 14.1 μg/m3 (54) 54.0
 
March 28, 2020, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (18) 0.27 ppb (3) N/A 15.7 μg/m3 (58) 58.0
 
March 28, 2020, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (19) 0.26 ppb (3) N/A 15.3 μg/m3 (57) 57.0
 
March 28, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (19) 0.26 ppb (3) N/A 16.1 μg/m3 (59) 59.0
 
March 28, 2020, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.28 ppb (3) N/A 12.0 μg/m3 (50) 50.0
 
March 28, 2020, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.2 ppb (2) N/A 5.6 μg/m3 (23) 26.0
 
March 28, 2020, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.18 ppb (2) N/A 4.9 μg/m3 (20) 30.0
 
March 28, 2020, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.2 ppb (2) N/A 5.8 μg/m3 (24) 31.0
 
March 28, 2020, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.24 ppb (3) N/A 7.7 μg/m3 (32) 32.0
 
March 28, 2020, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.33 ppb (4) N/A 10.3 μg/m3 (43) 43.0
 
March 28, 2020, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.27 ppb (3) N/A 9.2 μg/m3 (38) 38.0
 
March 28, 2020, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.27 ppb (3) N/A 8.3 μg/m3 (35) 35.0
 
March 28, 2020, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.28 ppb (3) N/A 7.3 μg/m3 (30) 30.0
 
March 27, 2020, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.23 ppb (3) N/A 5.8 μg/m3 (24) 31.0
 
March 27, 2020, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 44.0 ppb (34) 0.21 ppb (2) N/A 5.2 μg/m3 (22) 34.0
 
March 27, 2020, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 46.0 ppb (35) 0.21 ppb (2) N/A 5.2 μg/m3 (22) 35.0
 
March 27, 2020, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 46.0 ppb (35) 0.21 ppb (2) N/A 5.7 μg/m3 (24) 35.0
 
March 27, 2020, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 43.0 ppb (33) 0.23 ppb (3) N/A 8.6 μg/m3 (36) 36.0
 
March 27, 2020, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 43.0 ppb (33) 0.22 ppb (2) N/A 8.2 μg/m3 (34) 34.0
 
March 27, 2020, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (32) 0.22 ppb (2) N/A 7.5 μg/m3 (31) 32.0
 
March 27, 2020, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 42.0 ppb (32) N/A N/A 7.2 μg/m3 (30) 32.0
 
March 27, 2020, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.24 ppb (3) N/A 8.8 μg/m3 (37) 37.0
 
March 27, 2020, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.26 ppb (3) N/A 9.4 μg/m3 (39) 39.0
 
March 27, 2020, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (15) 0.3 ppb (3) N/A 11.2 μg/m3 (47) 47.0
 
March 27, 2020, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 15.0 ppb (12) 0.28 ppb (3) N/A 11.0 μg/m3 (46) 46.0
 
March 27, 2020, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 10.0 ppb (8) 0.28 ppb (3) N/A 11.1 μg/m3 (46) 46.0
 
March 27, 2020, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 17.0 ppb (13) 0.23 ppb (3) N/A 10.9 μg/m3 (45) 45.0
 
March 27, 2020, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 12.0 ppb (9) 0.23 ppb (3) N/A 10.2 μg/m3 (42) 42.0
 
March 27, 2020, 8 a.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 9.3 μg/m3 (39) 39.0
 
March 27, 2020, 7 a.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 9.0 μg/m3 (38) 38.0
 
March 27, 2020, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 25.0 ppb (19) 0.2 ppb (2) N/A 8.4 μg/m3 (35) 35.0
 
March 27, 2020, 5 a.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 8.5 μg/m3 (35) 35.0
 
March 27, 2020, 4 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 33.0 ppb (25) 0.21 ppb (2) N/A 8.4 μg/m3 (35) 35.0
 
March 27, 2020, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 31.0 ppb (24) 0.22 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
March 27, 2020, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.23 ppb (3) N/A 9.1 μg/m3 (38) 38.0
 
March 27, 2020, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 37.0 ppb (28) 0.21 ppb (2) N/A 8.6 μg/m3 (36) 36.0
 
March 27, 2020, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (32) 0.2 ppb (2) N/A 7.8 μg/m3 (32) 32.0
 
March 26, 2020, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 43.0 ppb (33) 0.21 ppb (2) N/A 7.6 μg/m3 (32) 33.0
 
March 26, 2020, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 46.0 ppb (35) 0.2 ppb (2) N/A 6.8 μg/m3 (28) 35.0
 
March 26, 2020, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 49.0 ppb (38) 0.19 ppb (2) N/A 5.8 μg/m3 (24) 38.0
 
March 26, 2020, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 46.0 ppb (35) 0.2 ppb (2) N/A 10.2 μg/m3 (42) 42.0
 
March 26, 2020, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 45.0 ppb (35) 0.2 ppb (2) N/A 10.7 μg/m3 (45) 45.0
 
March 26, 2020, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 44.0 ppb (34) 0.2 ppb (2) N/A 9.2 μg/m3 (38) 38.0
 
March 26, 2020, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 37.0 ppb (28) 0.21 ppb (2) N/A 10.2 μg/m3 (42) 42.0
 
March 26, 2020, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.22 ppb (2) N/A 11.0 μg/m3 (46) 46.0
 
March 26, 2020, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 33.0 ppb (25) 0.22 ppb (2) N/A 9.9 μg/m3 (41) 41.0
 
March 26, 2020, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 23.0 ppb (18) 0.28 ppb (3) N/A 11.8 μg/m3 (49) 49.0
 
March 26, 2020, 1 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 20.0 ppb (15) 0.28 ppb (3) N/A 12.2 μg/m3 (50) 50.0
 
March 26, 2020, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 11.0 ppb (8) 0.4 ppb (4) N/A 11.7 μg/m3 (49) 49.0
 
March 26, 2020, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 7.0 ppb (5) 0.41 ppb (5) N/A 10.2 μg/m3 (42) 42.0
 
March 26, 2020, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 7.0 ppb (5) 0.33 ppb (4) N/A 9.7 μg/m3 (40) 40.0
 
March 26, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 13.0 ppb (10) 0.29 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
March 26, 2020, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 15.0 ppb (12) 0.25 ppb (3) N/A 9.0 μg/m3 (38) 38.0
 
March 26, 2020, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 14.0 ppb (11) 0.25 ppb (3) N/A 8.3 μg/m3 (35) 35.0
 
March 26, 2020, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 21.0 ppb (16) 0.24 ppb (3) N/A 7.9 μg/m3 (33) 33.0
 
March 26, 2020, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (18) 0.23 ppb (3) N/A 7.2 μg/m3 (30) 30.0
 
March 26, 2020, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.22 ppb (2) N/A 7.5 μg/m3 (31) 31.0
 
March 26, 2020, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (19) 0.24 ppb (3) N/A 7.4 μg/m3 (31) 31.0
 
March 26, 2020, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.27 ppb (3) N/A 7.0 μg/m3 (29) 29.0
 
March 26, 2020, 1 a.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 6.5 μg/m3 (27) 27.0
 
March 26, 2020, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.24 ppb (3) N/A 7.5 μg/m3 (31) 31.0
 
March 25, 2020, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.25 ppb (3) N/A 8.3 μg/m3 (35) 35.0
 
March 25, 2020, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.23 ppb (3) N/A 6.7 μg/m3 (28) 28.0
 
March 25, 2020, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.21 ppb (2) N/A 5.8 μg/m3 (24) 28.0
 
March 25, 2020, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.22 ppb (2) N/A 6.0 μg/m3 (25) 26.0
 
March 25, 2020, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.21 ppb (2) N/A 5.6 μg/m3 (23) 27.0
 
March 25, 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
 
March 25, 2020, 5 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 5.2 μg/m3 (22) 28.0
 
March 25, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) 0.2 ppb (2) N/A 4.6 μg/m3 (19) 28.0
 
March 25, 2020, 3 p.m. 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
 
March 25, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) 0.2 ppb (2) N/A 4.7 μg/m3 (20) 25.0
 
March 25, 2020, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 0.21 ppb (2) N/A 4.8 μg/m3 (20) 20.0
 
March 25, 2020, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.22 ppb (2) N/A 5.2 μg/m3 (22) 22.0
 
March 25, 2020, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (19) 0.22 ppb (2) N/A 5.3 μg/m3 (22) 22.0
 
March 25, 2020, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.22 ppb (2) N/A 5.7 μg/m3 (24) 24.0
 
March 25, 2020, 9 a.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 4.2 μg/m3 (18) 24.0
 
March 25, 2020, 8 a.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 3.7 μg/m3 (15) 25.0
 
March 25, 2020, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.2 ppb (2) N/A 4.0 μg/m3 (17) 25.0
 
March 25, 2020, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.19 ppb (2) N/A 4.4 μg/m3 (18) 25.0
 
March 25, 2020, 5 a.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 4.8 μg/m3 (20) 24.0
 
March 25, 2020, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.21 ppb (2) N/A 5.5 μg/m3 (23) 24.0
 
March 25, 2020, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.22 ppb (2) N/A 5.4 μg/m3 (23) 23.0
 
March 25, 2020, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (19) 0.23 ppb (3) N/A 5.1 μg/m3 (21) 21.0
 
March 25, 2020, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 19.0 ppb (15) 0.35 ppb (4) N/A 6.5 μg/m3 (27) 27.0
 
March 25, 2020, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (19) 0.29 ppb (3) N/A 6.2 μg/m3 (26) 26.0
 
March 24, 2020, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.22 ppb (2) N/A 4.0 μg/m3 (17) 28.0
 
March 24, 2020, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.2 ppb (2) N/A 3.5 μg/m3 (15) 30.0
 
March 24, 2020, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.2 ppb (2) N/A 3.3 μg/m3 (14) 30.0
 
March 24, 2020, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.2 ppb (2) N/A 3.3 μg/m3 (14) 30.0
 
March 24, 2020, 7 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 3.3 μg/m3 (14) 28.0
 
March 24, 2020, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.19 ppb (2) N/A 3.1 μg/m3 (13) 28.0
 
March 24, 2020, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.2 ppb (2) N/A 3.0 μg/m3 (12) 28.0
 
March 24, 2020, 4 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 3.2 μg/m3 (13) 25.0
 
March 24, 2020, 3 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 2.6 μg/m3 (11) 23.0
 
March 24, 2020, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.21 ppb (2) N/A 2.6 μg/m3 (11) 20.0
 
March 24, 2020, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (18) 0.21 ppb (2) N/A 2.9 μg/m3 (12) 18.0
 
March 24, 2020, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (18) 0.22 ppb (2) N/A 3.2 μg/m3 (13) 18.0
 
March 24, 2020, 11 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 4.2 μg/m3 (18) 18.0
 
March 24, 2020, 10 a.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 5.7 μg/m3 (24) 24.0
 
March 24, 2020, 9 a.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
 
March 24, 2020, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (19) 0.19 ppb (2) N/A 8.1 μg/m3 (34) 34.0
 
March 24, 2020, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (17) 0.2 ppb (2) N/A 11.1 μg/m3 (46) 46.0
 
March 24, 2020, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 18.0 ppb (14) 0.22 ppb (2) N/A 12.5 μg/m3 (51) 51.0
 
March 24, 2020, 5 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 10.4 μg/m3 (43) 43.0
 
March 24, 2020, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (18) 0.22 ppb (2) N/A 8.5 μg/m3 (35) 35.0
 
March 24, 2020, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 21.0 ppb (16) 0.23 ppb (3) N/A 7.6 μg/m3 (32) 32.0
 
March 24, 2020, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (15) 0.24 ppb (3) N/A 4.2 μg/m3 (18) 18.0
 
March 24, 2020, 1 a.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 3.8 μg/m3 (16) 17.0
 
March 24, 2020, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (18) 0.25 ppb (3) N/A 3.1 μg/m3 (13) 18.0
 
March 23, 2020, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.23 ppb (3) N/A 1.7 μg/m3 (7) 23.0
 
March 23, 2020, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.23 ppb (3) N/A 1.2 μg/m3 (5) 25.0
 
March 23, 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 1.5 μg/m3 (6) 23.0
 
March 23, 2020, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.28 ppb (3) N/A 1.8 μg/m3 (8) 23.0
 
March 23, 2020, 7 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 2.1 μg/m3 (9) 23.0
 
March 23, 2020, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.25 ppb (3) N/A 1.6 μg/m3 (7) 25.0
 
March 23, 2020, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.23 ppb (3) N/A 1.4 μg/m3 (6) 27.0
 
March 23, 2020, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.22 ppb (2) N/A 1.8 μg/m3 (8) 26.0
 
March 23, 2020, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.21 ppb (2) N/A 2.6 μg/m3 (11) 25.0
 
March 23, 2020, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.22 ppb (2) N/A 3.1 μg/m3 (13) 26.0
 
March 23, 2020, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.21 ppb (2) N/A 3.8 μg/m3 (16) 25.0
 
March 23, 2020, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.23 ppb (3) N/A 4.8 μg/m3 (20) 22.0
 
March 23, 2020, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.22 ppb (2) N/A 5.5 μg/m3 (23) 23.0
 
March 23, 2020, 10 a.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 5.8 μg/m3 (24) 26.0
 
March 23, 2020, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.19 ppb (2) N/A 6.1 μg/m3 (25) 26.0
 
March 23, 2020, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.19 ppb (2) N/A 6.3 μg/m3 (26) 28.0
 
March 23, 2020, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.19 ppb (2) N/A 6.9 μg/m3 (29) 29.0
 
March 23, 2020, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.19 ppb (2) N/A 6.9 μg/m3 (29) 29.0
 
March 23, 2020, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.19 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
March 23, 2020, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.19 ppb (2) N/A 7.1 μg/m3 (30) 30.0