ID: 273

AQSQID: 100031007

Site Name: Lums 2

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

Updated: March 6, 2021, 4:32 a.m.

Location: Bear (Red Lion Rd), DE

Reporting: True, Located: True

Current AQI: 36.0

Bear (Red Lion Rd) DE, US: 39.5511, -75.7308

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Feb. 27, 2021, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 42.0 ppb (39) N/A N/A 4.4 μg/m3 (19) 39.0
 
Feb. 27, 2021, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 43.0 ppb (40) N/A N/A 4.1 μg/m3 (18) 40.0
 
Feb. 27, 2021, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 41.0 ppb (38) N/A N/A 4.2 μg/m3 (18) 38.0
 
Feb. 27, 2021, midnight N/A N/A N/A N/A N/A 1.0 ppb (2) 41.0 ppb (38) N/A N/A 4.2 μg/m3 (18) 38.0
 
Feb. 26, 2021, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 42.0 ppb (39) N/A N/A 3.8 μg/m3 (16) 39.0
 
Feb. 26, 2021, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 43.0 ppb (40) N/A N/A 3.8 μg/m3 (16) 40.0
 
Feb. 26, 2021, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 44.0 ppb (41) N/A N/A 3.5 μg/m3 (15) 41.0
 
Feb. 26, 2021, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 45.0 ppb (42) N/A N/A 4.2 μg/m3 (18) 42.0
 
Feb. 26, 2021, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 44.0 ppb (41) N/A N/A 5.0 μg/m3 (21) 41.0
 
Feb. 26, 2021, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 44.0 ppb (41) N/A N/A 5.1 μg/m3 (22) 41.0
 
Feb. 26, 2021, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 5.3 μg/m3 (23) 23.0
 
Feb. 26, 2021, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 42.0 ppb (39) N/A N/A 5.5 μg/m3 (23) 39.0
 
Feb. 26, 2021, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 5.3 μg/m3 (23) 23.0
 
Feb. 26, 2021, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 4.7 μg/m3 (20) 20.0
 
Feb. 26, 2021, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 7.2 μg/m3 (31) 31.0
 
Feb. 26, 2021, noon N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 7.9 μg/m3 (33) 33.0
 
Feb. 26, 2021, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 7.8 μg/m3 (33) 33.0
 
Feb. 26, 2021, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 6.5 μg/m3 (28) 28.0
 
Feb. 26, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Feb. 26, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 5.6 μg/m3 (24) 24.0
 
Feb. 26, 2021, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 5.6 μg/m3 (24) 24.0
 
Feb. 26, 2021, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 5.9 μg/m3 (25) 25.0
 
Feb. 26, 2021, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.9 μg/m3 (21) 21.0
 
Feb. 26, 2021, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 5.7 μg/m3 (24) 24.0
 
Feb. 26, 2021, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 5.1 μg/m3 (22) 22.0
 
Feb. 26, 2021, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 5.2 μg/m3 (22) 22.0
 
Feb. 26, 2021, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Feb. 26, 2021, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 5.2 μg/m3 (22) 22.0
 
Feb. 25, 2021, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 5.2 μg/m3 (22) 22.0
 
Feb. 25, 2021, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Feb. 25, 2021, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 4.6 μg/m3 (20) 20.0
 
Feb. 25, 2021, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 4.9 μg/m3 (21) 21.0
 
Feb. 25, 2021, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Feb. 25, 2021, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 5.8 μg/m3 (25) 25.0
 
Feb. 25, 2021, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 5.3 μg/m3 (23) 23.0
 
Feb. 25, 2021, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.7 μg/m3 (20) 20.0
 
Feb. 25, 2021, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.1 μg/m3 (18) 18.0
 
Feb. 25, 2021, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 3.5 μg/m3 (15) 15.0
 
Feb. 25, 2021, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 3.3 μg/m3 (14) 14.0
 
Feb. 25, 2021, noon N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.9 μg/m3 (21) 21.0
 
Feb. 25, 2021, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 7.8 μg/m3 (33) 33.0
 
Feb. 25, 2021, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 8.6 μg/m3 (36) 36.0
 
Feb. 25, 2021, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 7.5 μg/m3 (32) 32.0
 
Feb. 25, 2021, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 5.5 μg/m3 (23) 23.0
 
Feb. 25, 2021, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 4.7 μg/m3 (20) 20.0
 
Feb. 25, 2021, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 5.1 μg/m3 (22) 22.0
 
Feb. 25, 2021, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 5.2 μg/m3 (22) 22.0
 
Feb. 25, 2021, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.7 μg/m3 (20) 20.0
 
Feb. 25, 2021, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.7 μg/m3 (20) 20.0
 
Feb. 25, 2021, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 4.5 μg/m3 (19) 19.0
 
Feb. 25, 2021, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 4.6 μg/m3 (20) 20.0
 
Feb. 25, 2021, midnight N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 4.5 μg/m3 (19) 19.0
 
Feb. 24, 2021, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 4.1 μg/m3 (18) 18.0
 
Feb. 24, 2021, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 3.9 μg/m3 (17) 17.0
 
Feb. 24, 2021, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 3.5 μg/m3 (15) 15.0
 
Feb. 24, 2021, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 3.2 μg/m3 (14) 14.0
 
Feb. 24, 2021, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 3.5 μg/m3 (15) 15.0
 
Feb. 24, 2021, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A N/A 2.0
 
Feb. 24, 2021, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A N/A 2.0
 
Feb. 24, 2021, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 5.4 μg/m3 (23) 23.0
 
Feb. 24, 2021, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 6.6 μg/m3 (28) 28.0
 
Feb. 24, 2021, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 7.0 μg/m3 (30) 30.0
 
Feb. 24, 2021, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 7.1 μg/m3 (30) 30.0
 
Feb. 24, 2021, noon N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 5.6 μg/m3 (24) 24.0
 
Feb. 24, 2021, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Feb. 24, 2021, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.8 μg/m3 (20) 20.0
 
Feb. 24, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.7 μg/m3 (20) 20.0
 
Feb. 24, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.7 μg/m3 (20) 20.0
 
Feb. 24, 2021, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.5 μg/m3 (19) 19.0
 
Feb. 24, 2021, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.5 μg/m3 (19) 19.0
 
Feb. 24, 2021, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.7 μg/m3 (20) 20.0
 
Feb. 24, 2021, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 4.8 μg/m3 (20) 20.0
 
Feb. 24, 2021, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Feb. 24, 2021, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 8.0 μg/m3 (34) 34.0
 
Feb. 24, 2021, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 9.7 μg/m3 (41) 41.0
 
Feb. 24, 2021, midnight N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 11.8 μg/m3 (50) 50.0
 
Feb. 23, 2021, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 6.7 μg/m3 (28) 28.0
 
Feb. 23, 2021, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 5.8 μg/m3 (25) 25.0
 
Feb. 23, 2021, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 5.3 μg/m3 (23) 23.0
 
Feb. 23, 2021, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 5.6 μg/m3 (24) 24.0
 
Feb. 23, 2021, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 6.3 μg/m3 (27) 27.0
 
Feb. 23, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.3 μg/m3 (27) 27.0
 
Feb. 23, 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
 
Feb. 23, 2021, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 7.5 μg/m3 (32) 32.0
 
Feb. 23, 2021, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Feb. 23, 2021, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 9.7 μg/m3 (41) 41.0
 
Feb. 23, 2021, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 11.1 μg/m3 (47) 47.0
 
Feb. 23, 2021, noon N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 11.6 μg/m3 (49) 49.0
 
Feb. 23, 2021, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 10.5 μg/m3 (44) 44.0
 
Feb. 23, 2021, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 10.6 μg/m3 (45) 45.0
 
Feb. 23, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
Feb. 23, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 10.9 μg/m3 (46) 46.0
 
Feb. 23, 2021, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 12.5 μg/m3 (52) 52.0
 
Feb. 23, 2021, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 14.1 μg/m3 (56) 56.0
 
Feb. 23, 2021, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 14.4 μg/m3 (56) 56.0
 
Feb. 23, 2021, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 14.5 μg/m3 (57) 57.0
 
Feb. 23, 2021, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 14.3 μg/m3 (56) 56.0
 
Feb. 23, 2021, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 14.7 μg/m3 (57) 57.0
 
Feb. 23, 2021, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 13.9 μg/m3 (55) 55.0
 
Feb. 23, 2021, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 12.6 μg/m3 (53) 53.0
 
Feb. 22, 2021, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 9.8 μg/m3 (41) 41.0
 
Feb. 22, 2021, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 7.6 μg/m3 (32) 32.0
 
Feb. 22, 2021, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 7.1 μg/m3 (30) 30.0
 
Feb. 22, 2021, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 7.1 μg/m3 (30) 30.0
 
Feb. 22, 2021, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 7.5 μg/m3 (32) 32.0
 
Feb. 22, 2021, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 8.4 μg/m3 (36) 36.0
 
Feb. 22, 2021, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A 9.6 μg/m3 (40) 40.0
 
Feb. 22, 2021, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Feb. 22, 2021, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 8.9 μg/m3 (38) 38.0
 
Feb. 22, 2021, 2 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 10.7 μg/m3 (45) 45.0
 
Feb. 22, 2021, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
Feb. 22, 2021, noon N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 12.8 μg/m3 (53) 53.0
 
Feb. 22, 2021, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 11.3 μg/m3 (48) 48.0
 
Feb. 22, 2021, 10 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 11.3 μg/m3 (48) 48.0
 
Feb. 22, 2021, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 12.2 μg/m3 (52) 52.0
 
Feb. 22, 2021, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 12.1 μg/m3 (51) 51.0
 
Feb. 22, 2021, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 11.9 μg/m3 (50) 50.0
 
Feb. 22, 2021, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 12.5 μg/m3 (52) 52.0
 
Feb. 22, 2021, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 12.3 μg/m3 (52) 52.0
 
Feb. 22, 2021, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 39.0 ppb (37) N/A N/A 12.9 μg/m3 (53) 53.0
 
Feb. 22, 2021, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 36.0 ppb (34) N/A N/A 14.4 μg/m3 (56) 56.0
 
Feb. 22, 2021, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 14.3 μg/m3 (56) 56.0
 
Feb. 22, 2021, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 31.0 ppb (29) N/A N/A 13.8 μg/m3 (55) 55.0
 
Feb. 22, 2021, midnight N/A N/A N/A N/A N/A 1.0 ppb (2) 30.0 ppb (28) N/A N/A 13.5 μg/m3 (54) 54.0
 
Feb. 21, 2021, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 40.0 ppb (38) N/A N/A 12.7 μg/m3 (53) 53.0
 
Feb. 21, 2021, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 47.0 ppb (44) N/A N/A 11.2 μg/m3 (47) 47.0
 
Feb. 21, 2021, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 51.0 ppb (48) N/A N/A 10.2 μg/m3 (43) 48.0
 
Feb. 21, 2021, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 51.0 ppb (48) N/A N/A 10.4 μg/m3 (44) 48.0
 
Feb. 21, 2021, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 51.0 ppb (48) N/A N/A 11.7 μg/m3 (49) 49.0
 
Feb. 21, 2021, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 51.0 ppb (48) N/A N/A 13.3 μg/m3 (54) 54.0
 
Feb. 21, 2021, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 49.0 ppb (46) N/A N/A 13.5 μg/m3 (54) 54.0
 
Feb. 21, 2021, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 47.0 ppb (44) N/A N/A 12.3 μg/m3 (52) 52.0
 
Feb. 21, 2021, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 46.0 ppb (43) N/A N/A 13.3 μg/m3 (54) 54.0
 
Feb. 21, 2021, 2 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 44.0 ppb (41) N/A N/A 17.8 μg/m3 (63) 63.0
 
Feb. 21, 2021, 1 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 41.0 ppb (38) N/A N/A 21.5 μg/m3 (71) 71.0
 
Feb. 21, 2021, noon N/A N/A N/A N/A N/A 2.0 ppb (3) 40.0 ppb (38) N/A N/A 22.9 μg/m3 (74) 74.0
 
Feb. 21, 2021, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 40.0 ppb (38) N/A N/A 23.4 μg/m3 (75) 75.0
 
Feb. 21, 2021, 10 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 40.0 ppb (38) N/A N/A 23.4 μg/m3 (75) 75.0
 
Feb. 21, 2021, 9 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 41.0 ppb (38) N/A N/A 23.6 μg/m3 (76) 76.0
 
Feb. 21, 2021, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 42.0 ppb (39) N/A N/A 23.3 μg/m3 (75) 75.0
 
Feb. 21, 2021, 7 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 42.0 ppb (39) N/A N/A 22.8 μg/m3 (74) 74.0
 
Feb. 21, 2021, 6 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 42.0 ppb (39) N/A N/A 22.9 μg/m3 (74) 74.0
 
Feb. 21, 2021, 5 a.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 42.0 ppb (39) N/A N/A 22.4 μg/m3 (73) 73.0
 
Feb. 21, 2021, 4 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 43.0 ppb (40) N/A N/A 19.8 μg/m3 (68) 68.0
 
Feb. 21, 2021, 3 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 44.0 ppb (41) N/A N/A 19.3 μg/m3 (67) 67.0
 
Feb. 21, 2021, 2 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 44.0 ppb (41) N/A N/A 17.6 μg/m3 (63) 63.0
 
Feb. 21, 2021, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 44.0 ppb (41) N/A N/A 17.9 μg/m3 (64) 64.0
 
Feb. 21, 2021, midnight N/A N/A N/A N/A N/A 1.0 ppb (2) 44.0 ppb (41) N/A N/A 17.5 μg/m3 (63) 63.0
 
Feb. 20, 2021, 11 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 45.0 ppb (42) N/A N/A 17.8 μg/m3 (63) 63.0
 
Feb. 20, 2021, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 47.0 ppb (44) N/A N/A 18.7 μg/m3 (65) 65.0
 
Feb. 20, 2021, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 50.0 ppb (47) N/A N/A 19.3 μg/m3 (67) 67.0
 
Feb. 20, 2021, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 51.0 ppb (48) N/A N/A 16.4 μg/m3 (61) 61.0
 
Feb. 20, 2021, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 52.0 ppb (49) N/A N/A 14.3 μg/m3 (56) 56.0
 
Feb. 20, 2021, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 51.0 ppb (48) N/A N/A 14.1 μg/m3 (56) 56.0
 
Feb. 20, 2021, 5 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 50.0 ppb (47) N/A N/A 17.1 μg/m3 (62) 62.0
 
Feb. 20, 2021, 4 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 48.0 ppb (45) N/A N/A 16.0 μg/m3 (60) 60.0
 
Feb. 20, 2021, 3 p.m. N/A N/A N/A N/A N/A 2.0 ppb (3) 48.0 ppb (45) N/A N/A 15.4 μg/m3 (58) 58.0
 
Feb. 20, 2021, 2 p.m. N/A N/A N/A N/A N/A 3.0 ppb (5) 47.0 ppb (44) N/A N/A 15.6 μg/m3 (59) 59.0
 
Feb. 20, 2021, 1 p.m. N/A N/A N/A N/A N/A 3.0 ppb (5) 42.0 ppb (39) N/A N/A 14.9 μg/m3 (57) 57.0
 
Feb. 20, 2021, noon N/A N/A N/A N/A N/A 2.0 ppb (3) 37.0 ppb (35) N/A N/A 16.1 μg/m3 (60) 60.0
 
Feb. 20, 2021, 11 a.m. N/A N/A N/A N/A N/A 3.0 ppb (5) 35.0 ppb (33) N/A N/A 15.8 μg/m3 (59) 59.0
 
Feb. 20, 2021, 10 a.m. N/A N/A N/A N/A N/A 4.0 ppb (6) 34.0 ppb (32) N/A N/A 14.5 μg/m3 (57) 57.0
 
Feb. 20, 2021, 9 a.m. N/A N/A N/A N/A N/A 3.0 ppb (5) 36.0 ppb (34) N/A N/A 13.4 μg/m3 (54) 54.0
 
Feb. 20, 2021, 8 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 39.0 ppb (37) N/A N/A 12.5 μg/m3 (52) 52.0
 
Feb. 20, 2021, 7 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 40.0 ppb (38) N/A N/A 11.9 μg/m3 (50) 50.0
 
Feb. 20, 2021, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 38.0 ppb (36) N/A N/A 10.8 μg/m3 (46) 46.0
 
Feb. 20, 2021, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 13.3 μg/m3 (54) 54.0
 
Feb. 20, 2021, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 16.7 μg/m3 (61) 61.0