ID: 635

AQSQID: 371290002

Site Name: Castle H

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

Updated: Jan. 21, 2021, 10:31 a.m.

Location: Castle Hayne (Holly Shelter Rd), NC

Reporting: True, Located: True

Current AQI: 34.0

Castle Hayne (Holly Shelter Rd) NC, US: 34.364167, -77.838611

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 21, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.2 μg/m3 (10) 8.0 μg/m3 (34) 34.0
 
Jan. 21, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.6 μg/m3 (9) 9.0 μg/m3 (38) 38.0
 
Jan. 21, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.9 μg/m3 (10) 7.0 μg/m3 (30) 30.0
 
Jan. 21, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.5 μg/m3 (10) 5.0 μg/m3 (21) 21.0
 
Jan. 21, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.4 μg/m3 (10) 6.0 μg/m3 (25) 25.0
 
Jan. 21, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.5 μg/m3 (10) 9.0 μg/m3 (38) 38.0
 
Jan. 21, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.5 μg/m3 (11) 8.0 μg/m3 (34) 34.0
 
Jan. 21, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.4 μg/m3 (11) 8.0 μg/m3 (34) 34.0
 
Jan. 21, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.9 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
Jan. 21, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 10.6 μg/m3 (10) 8.0 μg/m3 (34) 34.0
 
Jan. 20, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.4 μg/m3 (12) 10.0 μg/m3 (42) 42.0
 
Jan. 20, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.9 μg/m3 (15) 8.0 μg/m3 (34) 34.0
 
Jan. 20, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.7 μg/m3 (22) 8.0 μg/m3 (34) 34.0
 
Jan. 20, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.8 μg/m3 (29) 8.0 μg/m3 (34) 34.0
 
Jan. 20, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.8 μg/m3 (19) 10.0 μg/m3 (42) 42.0
 
Jan. 20, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.6 μg/m3 (29) 6.0 μg/m3 (25) 29.0
 
Jan. 20, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (24) 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.9 μg/m3 (22) 10.0 μg/m3 (42) 42.0
 
Jan. 20, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.8 μg/m3 (26) 12.0 μg/m3 (50) 50.0
 
Jan. 20, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.1 μg/m3 (24) 12.0 μg/m3 (50) 50.0
 
Jan. 20, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.1 μg/m3 (21) 16.0 μg/m3 (60) 60.0
 
Jan. 20, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 19.7 μg/m3 (19) 10.0 μg/m3 (42) 42.0
 
Jan. 20, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.1 μg/m3 (16) 11.0 μg/m3 (46) 46.0
 
Jan. 20, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.7 μg/m3 (16) 10.0 μg/m3 (42) 42.0
 
Jan. 20, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.3 μg/m3 (16) 8.0 μg/m3 (34) 34.0
 
Jan. 20, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.7 μg/m3 (16) 5.0 μg/m3 (21) 21.0
 
Jan. 20, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.3 μg/m3 (14) 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.3 μg/m3 (11) 5.0 μg/m3 (21) 21.0
 
Jan. 20, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.4 μg/m3 (10) 4.0 μg/m3 (17) 17.0
 
Jan. 20, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.7 μg/m3 (10) 7.0 μg/m3 (30) 30.0
 
Jan. 20, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.4 μg/m3 (10) 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 4.0 μg/m3 (17) 17.0
 
Jan. 20, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 8.5 μg/m3 (8) 5.0 μg/m3 (21) 21.0
 
Jan. 19, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.4 μg/m3 (7) 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.3 μg/m3 (8) 2.0 μg/m3 (9) 9.0
 
Jan. 19, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.7 μg/m3 (8) 3.0 μg/m3 (13) 13.0
 
Jan. 19, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.6 μg/m3 (8) 2.0 μg/m3 (9) 9.0
 
Jan. 19, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.4 μg/m3 (5) 0.0 μg/m3 (0) 5.0
 
Jan. 19, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 0.0
Jan. 19, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.6 μg/m3 (8) 4.0 μg/m3 (17) 17.0
 
Jan. 19, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.5 μg/m3 (10) 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.7 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.1 μg/m3 (9) 5.0 μg/m3 (21) 21.0
 
Jan. 19, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 8.5 μg/m3 (8) 4.0 μg/m3 (17) 17.0
 
Jan. 19, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.9 μg/m3 (8) 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.2 μg/m3 (8) 8.0 μg/m3 (34) 34.0
 
Jan. 19, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.3 μg/m3 (9) 7.0 μg/m3 (30) 30.0
 
Jan. 19, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.4 μg/m3 (8) 8.0 μg/m3 (34) 34.0
 
Jan. 19, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.4 μg/m3 (9) 9.0 μg/m3 (38) 38.0
 
Jan. 19, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.3 μg/m3 (10) 9.0 μg/m3 (38) 38.0
 
Jan. 19, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.7 μg/m3 (10) 9.0 μg/m3 (38) 38.0
 
Jan. 19, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.5 μg/m3 (11) 7.0 μg/m3 (30) 30.0
 
Jan. 19, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (10) 4.0 μg/m3 (17) 17.0
 
Jan. 19, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.9 μg/m3 (9) 5.0 μg/m3 (21) 21.0
 
Jan. 19, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.3 μg/m3 (8) 3.0 μg/m3 (13) 13.0
 
Jan. 19, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 7.3 μg/m3 (7) 4.0 μg/m3 (17) 17.0
 
Jan. 18, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.3 μg/m3 (7) 5.0 μg/m3 (21) 21.0
 
Jan. 18, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.5 μg/m3 (10) 7.0 μg/m3 (30) 30.0
 
Jan. 18, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.7 μg/m3 (10) 5.0 μg/m3 (21) 21.0
 
Jan. 18, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.1 μg/m3 (16) 2.0 μg/m3 (9) 16.0
 
Jan. 18, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.3 μg/m3 (10) 2.0 μg/m3 (9) 10.0
 
Jan. 18, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.1 μg/m3 (10) 3.0 μg/m3 (13) 13.0
 
Jan. 18, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (11) 4.0 μg/m3 (17) 17.0
 
Jan. 18, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 6.0 μg/m3 (25) 25.0
 
Jan. 18, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.2 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
Jan. 18, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.2 μg/m3 (13) 5.0 μg/m3 (21) 21.0
 
Jan. 18, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.9 μg/m3 (12) 6.0 μg/m3 (25) 25.0
 
Jan. 18, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 12.6 μg/m3 (12) 6.0 μg/m3 (25) 25.0
 
Jan. 18, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.9 μg/m3 (10) 7.0 μg/m3 (30) 30.0
 
Jan. 18, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.8 μg/m3 (9) 4.0 μg/m3 (17) 17.0
 
Jan. 18, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.8 μg/m3 (8) 4.0 μg/m3 (17) 17.0
 
Jan. 18, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.3 μg/m3 (8) 4.0 μg/m3 (17) 17.0
 
Jan. 18, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (7) 6.0 μg/m3 (25) 25.0
 
Jan. 18, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.7 μg/m3 (8) 7.0 μg/m3 (30) 30.0
 
Jan. 18, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.2 μg/m3 (8) 6.0 μg/m3 (25) 25.0
 
Jan. 18, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.1 μg/m3 (8) 8.0 μg/m3 (34) 34.0
 
Jan. 18, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.4 μg/m3 (9) 9.0 μg/m3 (38) 38.0
 
Jan. 18, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.1 μg/m3 (10) 8.0 μg/m3 (34) 34.0
 
Jan. 18, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.5 μg/m3 (9) 7.0 μg/m3 (30) 30.0
 
Jan. 18, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 8.3 μg/m3 (8) 7.0 μg/m3 (30) 30.0
 
Jan. 17, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.1 μg/m3 (7) 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.4 μg/m3 (6) 7.0 μg/m3 (30) 30.0
 
Jan. 17, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.5 μg/m3 (7) 4.0 μg/m3 (17) 17.0
 
Jan. 17, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.3 μg/m3 (6) 5.0 μg/m3 (21) 21.0
 
Jan. 17, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.8 μg/m3 (6) 3.0 μg/m3 (13) 13.0
 
Jan. 17, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.3 μg/m3 (6) 2.0 μg/m3 (9) 9.0
 
Jan. 17, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.1 μg/m3 (6) 5.0 μg/m3 (21) 21.0
 
Jan. 17, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.6 μg/m3 (6) 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.9 μg/m3 (7) 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.5 μg/m3 (7) 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.5 μg/m3 (7) 5.0 μg/m3 (21) 21.0
 
Jan. 17, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 7.7 μg/m3 (8) 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.9 μg/m3 (7) 5.0 μg/m3 (21) 21.0
 
Jan. 17, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (7) 2.0 μg/m3 (9) 9.0
 
Jan. 17, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.7 μg/m3 (7) 3.0 μg/m3 (13) 13.0
 
Jan. 17, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.6 μg/m3 (7) 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.2 μg/m3 (7) 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.7 μg/m3 (8) 5.0 μg/m3 (21) 21.0
 
Jan. 17, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.6 μg/m3 (7) 7.0 μg/m3 (30) 30.0
 
Jan. 17, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.9 μg/m3 (7) 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (8) 4.0 μg/m3 (17) 17.0
 
Jan. 17, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.2 μg/m3 (9) 4.0 μg/m3 (17) 17.0
 
Jan. 17, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.5 μg/m3 (9) 4.0 μg/m3 (17) 17.0
 
Jan. 17, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 10.4 μg/m3 (10) 7.0 μg/m3 (30) 30.0
 
Jan. 16, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (13) 10.0 μg/m3 (42) 42.0
 
Jan. 16, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.9 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.8 μg/m3 (18) 4.0 μg/m3 (17) 18.0
 
Jan. 16, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.4 μg/m3 (17) 5.0 μg/m3 (21) 21.0
 
Jan. 16, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.8 μg/m3 (18) 7.0 μg/m3 (30) 30.0
 
Jan. 16, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.6 μg/m3 (20) 4.0 μg/m3 (17) 20.0
 
Jan. 16, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.1 μg/m3 (18) 3.0 μg/m3 (13) 18.0
 
Jan. 16, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.5 μg/m3 (17) 4.0 μg/m3 (17) 17.0
 
Jan. 16, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.2 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.9 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.3 μg/m3 (11) 7.0 μg/m3 (30) 30.0
 
Jan. 16, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 10.1 μg/m3 (10) 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.9 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.9 μg/m3 (8) 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.2 μg/m3 (8) 4.0 μg/m3 (17) 17.0
 
Jan. 16, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.1 μg/m3 (7) 3.0 μg/m3 (13) 13.0
 
Jan. 16, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.5 μg/m3 (6) 5.0 μg/m3 (21) 21.0
 
Jan. 16, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.8 μg/m3 (7) 5.0 μg/m3 (21) 21.0
 
Jan. 16, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.7 μg/m3 (7) 2.0 μg/m3 (9) 9.0
 
Jan. 16, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.1 μg/m3 (6) 4.0 μg/m3 (17) 17.0
 
Jan. 16, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.1 μg/m3 (7) 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.6 μg/m3 (8) 5.0 μg/m3 (21) 21.0
 
Jan. 16, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.7 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 11.4 μg/m3 (11) 7.0 μg/m3 (30) 30.0
 
Jan. 15, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.9 μg/m3 (11) 7.0 μg/m3 (30) 30.0
 
Jan. 15, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.2 μg/m3 (11) 7.0 μg/m3 (30) 30.0
 
Jan. 15, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.6 μg/m3 (9) 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.5 μg/m3 (11) 4.0 μg/m3 (17) 17.0
 
Jan. 15, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.7 μg/m3 (11) 4.0 μg/m3 (17) 17.0
 
Jan. 15, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.9 μg/m3 (12) 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.5 μg/m3 (11) 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.8 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
Jan. 15, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.4 μg/m3 (13) 8.0 μg/m3 (34) 34.0
 
Jan. 15, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.9 μg/m3 (15) 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.1 μg/m3 (10) 9.0 μg/m3 (38) 38.0
 
Jan. 15, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 10.3 μg/m3 (10) 6.0 μg/m3 (25) 25.0
 
Jan. 15, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.1 μg/m3 (10) 9.0 μg/m3 (38) 38.0
 
Jan. 15, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.8 μg/m3 (10) 7.0 μg/m3 (30) 30.0
 
Jan. 15, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.6 μg/m3 (10) 7.0 μg/m3 (30) 30.0
 
Jan. 15, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.9 μg/m3 (12) 9.0 μg/m3 (38) 38.0
 
Jan. 15, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.3 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
Jan. 15, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.5 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
Jan. 15, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.2 μg/m3 (11) 8.0 μg/m3 (34) 34.0
 
Jan. 15, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.2 μg/m3 (12) 10.0 μg/m3 (42) 42.0
 
Jan. 15, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.3 μg/m3 (13) 9.0 μg/m3 (38) 38.0
 
Jan. 15, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.4 μg/m3 (14) 11.0 μg/m3 (46) 46.0
 
Jan. 15, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.4 μg/m3 (14) 9.0 μg/m3 (38) 38.0
 
Jan. 15, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 12.8 μg/m3 (12) 12.0 μg/m3 (50) 50.0
 
Jan. 14, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (13) 11.0 μg/m3 (46) 46.0
 
Jan. 14, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.2 μg/m3 (12) 6.0 μg/m3 (25) 25.0
 
Jan. 14, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.8 μg/m3 (11) 5.0 μg/m3 (21) 21.0
 
Jan. 14, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.1 μg/m3 (14) 8.0 μg/m3 (34) 34.0
 
Jan. 14, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.1 μg/m3 (14) 10.0 μg/m3 (42) 42.0
 
Jan. 14, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (53) 53.0
 
Jan. 14, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 14, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 14, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 14, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
Jan. 14, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (55) 55.0
 
Jan. 14, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 14, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 14, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 14, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (30) 30.0