ID: 635

AQSQID: 371290002

Site Name: Castle H

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

Updated: July 28, 2021, 6:55 p.m.

Location: Castle Hayne (Holly Shelter Rd), NC

Reporting: True, Located: True

Current AQI: 38.0

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
July 28, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 8.0 μg/m3 (8) 1.0 μg/m3 (5) 39.0
 
July 28, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 8.0 μg/m3 (8) -2.0 μg/m3 (0) 38.0
 
July 28, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 9.0 μg/m3 (9) -2.0 μg/m3 (0) 38.0
 
July 28, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 8.0 μg/m3 (8) -1.0 μg/m3 (0) 34.0
 
July 28, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 8.0 μg/m3 (8) 0.0 μg/m3 (0) 25.0
 
July 28, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A 9.0 μg/m3 (9) -1.0 μg/m3 (0) 18.0
 
July 28, 2021, noon N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A 13.0 μg/m3 (13) -1.0 μg/m3 (0) 16.0
 
July 28, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A 14.0 μg/m3 (13) 1.0 μg/m3 (5) 16.0
 
July 28, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 14.0 μg/m3 (13) 0.0 μg/m3 (0) 26.0
 
July 28, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 13.0 μg/m3 (13) 1.0 μg/m3 (5) 25.0
 
July 28, 2021, 8 a.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
 
July 28, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) N/A 19.0 μg/m3 (18) 6.0 μg/m3 (25) 25.0
 
July 28, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 20.0 μg/m3 (19) 4.0 μg/m3 (17) 19.0
 
July 28, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A 23.0 μg/m3 (22) 5.0 μg/m3 (21) 22.0
 
July 28, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A 21.0 μg/m3 (20) 6.0 μg/m3 (25) 25.0
 
July 28, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A 21.0 μg/m3 (20) 6.0 μg/m3 (25) 25.0
 
July 28, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) N/A 22.0 μg/m3 (21) 4.0 μg/m3 (17) 21.0
 
July 28, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) N/A 23.0 μg/m3 (22) 4.0 μg/m3 (17) 22.0
 
July 28, 2021, midnight N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A 22.0 μg/m3 (21) 5.0 μg/m3 (21) 21.0
 
July 27, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A 21.0 μg/m3 (20) 4.0 μg/m3 (17) 20.0
 
July 27, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 20.0 μg/m3 (19) 4.0 μg/m3 (17) 23.0
 
July 27, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 19.0 μg/m3 (18) 3.0 μg/m3 (13) 27.0
 
July 27, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 14.0 μg/m3 (13) 4.0 μg/m3 (17) 32.0
 
July 27, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 16.0 μg/m3 (15) 4.0 μg/m3 (17) 36.0
 
July 27, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 22.0 μg/m3 (21) 4.0 μg/m3 (17) 33.0
 
July 27, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 24.0 μg/m3 (23) 4.0 μg/m3 (17) 29.0
 
July 27, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 14.0 μg/m3 (13) 5.0 μg/m3 (21) 26.0
 
July 27, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 15.0 μg/m3 (14) 5.0 μg/m3 (21) 26.0
 
July 27, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 20.0 μg/m3 (19) 2.0 μg/m3 (9) 26.0
 
July 27, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 17.0 μg/m3 (16) 2.0 μg/m3 (9) 25.0
 
July 27, 2021, noon N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 16.0 μg/m3 (15) 0.0 μg/m3 (0) 20.0
 
July 27, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) N/A 18.0 μg/m3 (17) 0.0 μg/m3 (0) 17.0
 
July 27, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) N/A 19.0 μg/m3 (18) 3.0 μg/m3 (13) 18.0
 
July 27, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 21.0 μg/m3 (20) 4.0 μg/m3 (17) 20.0
 
July 27, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (16) 3.0 μg/m3 (13) 16.0
 
July 27, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 19.0 μg/m3 (18) 3.0 μg/m3 (13) 18.0
 
July 27, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 21.0 μg/m3 (20) 5.0 μg/m3 (21) 21.0
 
July 27, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 25.0 μg/m3 (24) 7.0 μg/m3 (30) 30.0
 
July 27, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 27.0 μg/m3 (25) 7.0 μg/m3 (30) 30.0
 
July 27, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 28.0 μg/m3 (26) 4.0 μg/m3 (17) 26.0
 
July 27, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) N/A 30.0 μg/m3 (28) 6.0 μg/m3 (25) 28.0
 
July 27, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A 28.0 μg/m3 (26) 6.0 μg/m3 (25) 26.0
 
July 27, 2021, midnight N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A 25.0 μg/m3 (24) 4.0 μg/m3 (17) 24.0
 
July 26, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A 25.0 μg/m3 (24) 5.0 μg/m3 (21) 24.0
 
July 26, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A 24.0 μg/m3 (23) 8.0 μg/m3 (34) 34.0
 
July 26, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 31.0 μg/m3 (29) 6.0 μg/m3 (25) 29.0
 
July 26, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 26.0 μg/m3 (25) 4.0 μg/m3 (17) 25.0
 
July 26, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 23.0 μg/m3 (22) 0.0 μg/m3 (0) 22.0
 
July 26, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 18.0 μg/m3 (17) 1.0 μg/m3 (5) 22.0
 
July 26, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 15.0 μg/m3 (14) 1.0 μg/m3 (5) 23.0
 
July 26, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 12.0 μg/m3 (12) 2.0 μg/m3 (9) 25.0
 
July 26, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 11.0 μg/m3 (11) 3.0 μg/m3 (13) 25.0
 
July 26, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 12.0 μg/m3 (12) 5.0 μg/m3 (21) 21.0
 
July 26, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A 21.0 μg/m3 (20) 3.0 μg/m3 (13) 20.0
 
July 26, 2021, noon N/A N/A N/A N/A N/A N/A 7.0 ppb (7) N/A 31.0 μg/m3 (29) 1.0 μg/m3 (5) 29.0
 
July 26, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 27.0 μg/m3 (25) -2.0 μg/m3 (0) 25.0
 
July 26, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 18.0 μg/m3 (17) 0.0 μg/m3 (0) 17.0
 
July 26, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 16.0 μg/m3 (15) 0.0 μg/m3 (0) 15.0
 
July 26, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) -2.0 μg/m3 (0) 14.0
 
July 26, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 15.0 μg/m3 (14) -1.0 μg/m3 (0) 14.0
 
July 26, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 12.0 μg/m3 (12) -1.0 μg/m3 (0) 12.0
 
July 26, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 13.0 μg/m3 (13) -4.0 μg/m3 (0) 13.0
 
July 26, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 11.0 μg/m3 (11) -1.0 μg/m3 (0) 11.0
 
July 26, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 11.0 μg/m3 (11) 2.0 μg/m3 (9) 11.0
 
July 26, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 11.0 μg/m3 (11) -2.0 μg/m3 (0) 11.0
 
July 26, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A 10.0 μg/m3 (10) 1.0 μg/m3 (5) 10.0
 
July 26, 2021, midnight N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 9.0 μg/m3 (9) 2.0 μg/m3 (9) 19.0
 
July 25, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 11.0 μg/m3 (11) 2.0 μg/m3 (9) 27.0
 
July 25, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 11.0 μg/m3 (11) 0.0 μg/m3 (0) 31.0
 
July 25, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 13.0 μg/m3 (13) 3.0 μg/m3 (13) 35.0
 
July 25, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 13.0 μg/m3 (13) 5.0 μg/m3 (21) 38.0
 
July 25, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 14.0 μg/m3 (13) 3.0 μg/m3 (13) 38.0
 
July 25, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 14.0 μg/m3 (13) 3.0 μg/m3 (13) 38.0
 
July 25, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 13.0 μg/m3 (13) 4.0 μg/m3 (17) 38.0
 
July 25, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 13.0 μg/m3 (13) 4.0 μg/m3 (17) 41.0
 
July 25, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 14.0 μg/m3 (13) 2.0 μg/m3 (9) 40.0
 
July 25, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 13.0 μg/m3 (13) 2.0 μg/m3 (9) 38.0
 
July 25, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 12.0 μg/m3 (12) 2.0 μg/m3 (9) 29.0
 
July 25, 2021, noon N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A 13.0 μg/m3 (13) 3.0 μg/m3 (13) 16.0
 
July 25, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A 13.0 μg/m3 (13) 3.0 μg/m3 (13) 13.0
 
July 25, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 14.0 μg/m3 (13) 4.0 μg/m3 (17) 17.0
 
July 25, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 15.0 μg/m3 (14) 3.0 μg/m3 (13) 14.0
 
July 25, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 6.0 μg/m3 (25) 25.0
 
July 25, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 14.0 μg/m3 (13) 4.0 μg/m3 (17) 17.0
 
July 25, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 16.0 μg/m3 (15) 2.0 μg/m3 (9) 15.0
 
July 25, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 15.0 μg/m3 (14) 3.0 μg/m3 (13) 14.0
 
July 25, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 14.0 μg/m3 (13) 4.0 μg/m3 (17) 17.0
 
July 25, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 14.0 μg/m3 (13) 4.0 μg/m3 (17) 17.0
 
July 25, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) N/A 13.0 μg/m3 (13) 5.0 μg/m3 (21) 21.0
 
July 25, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A 12.0 μg/m3 (12) 4.0 μg/m3 (17) 17.0
 
July 25, 2021, midnight N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 11.0 μg/m3 (11) 4.0 μg/m3 (17) 25.0
 
July 24, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 12.0 μg/m3 (12) 6.0 μg/m3 (25) 41.0
 
July 24, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 13.0 μg/m3 (13) 6.0 μg/m3 (25) 45.0
 
July 24, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A 13.0 μg/m3 (13) 5.0 μg/m3 (21) 48.0
 
July 24, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A 14.0 μg/m3 (13) 5.0 μg/m3 (21) 48.0
 
July 24, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 15.0 μg/m3 (14) 5.0 μg/m3 (21) 47.0
 
July 24, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 14.0 μg/m3 (13) 6.0 μg/m3 (25) 49.0
 
July 24, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A 16.0 μg/m3 (15) 5.0 μg/m3 (21) 51.0
 
July 24, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A 15.0 μg/m3 (14) 5.0 μg/m3 (21) 50.0
 
July 24, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 15.0 μg/m3 (14) 6.0 μg/m3 (25) 46.0
 
July 24, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 15.0 μg/m3 (14) 6.0 μg/m3 (25) 43.0
 
July 24, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 15.0 μg/m3 (14) 3.0 μg/m3 (13) 35.0
 
July 24, 2021, noon N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 16.0 μg/m3 (15) 5.0 μg/m3 (21) 24.0
 
July 24, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A 16.0 μg/m3 (15) 4.0 μg/m3 (17) 17.0
 
July 24, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 17.0 μg/m3 (16) 3.0 μg/m3 (13) 16.0
 
July 24, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 18.0 μg/m3 (17) 6.0 μg/m3 (25) 25.0
 
July 24, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (16) 4.0 μg/m3 (17) 17.0
 
July 24, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A 17.0 μg/m3 (16) 4.0 μg/m3 (17) 17.0
 
July 24, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 18.0 μg/m3 (17) 4.0 μg/m3 (17) 17.0
 
July 24, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) N/A 19.0 μg/m3 (18) 4.0 μg/m3 (17) 18.0
 
July 24, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A 16.0 μg/m3 (15) 2.0 μg/m3 (9) 15.0
 
July 24, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 15.0 μg/m3 (14) 2.0 μg/m3 (9) 20.0
 
July 24, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 15.0 μg/m3 (14) 4.0 μg/m3 (17) 36.0
 
July 24, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A 14.0 μg/m3 (13) 5.0 μg/m3 (21) 21.0
 
July 24, 2021, midnight N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 15.0 μg/m3 (14) 6.0 μg/m3 (25) 34.0
 
July 23, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 15.0 μg/m3 (14) 5.0 μg/m3 (21) 43.0
 
July 23, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A 17.0 μg/m3 (16) 4.0 μg/m3 (17) 50.0
 
July 23, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A 16.0 μg/m3 (15) 6.0 μg/m3 (25) 55.0
 
July 23, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A 19.0 μg/m3 (18) 7.0 μg/m3 (30) 50.0
 
July 23, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A 20.0 μg/m3 (19) 11.0 μg/m3 (46) 50.0
 
July 23, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A 20.0 μg/m3 (19) 9.0 μg/m3 (38) 50.0
 
July 23, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A 22.0 μg/m3 (21) 7.0 μg/m3 (30) 48.0
 
July 23, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 24.0 μg/m3 (23) 11.0 μg/m3 (46) 47.0
 
July 23, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 24.0 μg/m3 (23) 9.0 μg/m3 (38) 44.0
 
July 23, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 25.0 μg/m3 (24) 5.0 μg/m3 (21) 40.0
 
July 23, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 23.0 μg/m3 (22) 7.0 μg/m3 (30) 34.0
 
July 23, 2021, noon N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 23.0 μg/m3 (22) 10.0 μg/m3 (42) 42.0
 
July 23, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 23.0 μg/m3 (22) 8.0 μg/m3 (34) 34.0
 
July 23, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 25.0 μg/m3 (24) 9.0 μg/m3 (38) 38.0
 
July 23, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 27.0 μg/m3 (25) 10.0 μg/m3 (42) 42.0
 
July 23, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 11.0 μg/m3 (46) 46.0
 
July 23, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 27.0 μg/m3 (25) 10.0 μg/m3 (42) 42.0
 
July 23, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 23.0 μg/m3 (22) 10.0 μg/m3 (42) 42.0
 
July 23, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 26.0 μg/m3 (25) 19.0 μg/m3 (66) 66.0
 
July 23, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 34.0 μg/m3 (32) 18.0 μg/m3 (64) 64.0
 
July 23, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 34.0 μg/m3 (32) 19.0 μg/m3 (66) 66.0
 
July 23, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 38.0 μg/m3 (36) 21.0 μg/m3 (70) 70.0
 
July 23, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A 38.0 μg/m3 (36) 22.0 μg/m3 (72) 72.0
 
July 23, 2021, midnight N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 38.0 μg/m3 (36) 24.0 μg/m3 (77) 77.0
 
July 22, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 35.0 μg/m3 (33) 17.0 μg/m3 (62) 62.0
 
July 22, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 30.0 μg/m3 (28) 15.0 μg/m3 (58) 58.0
 
July 22, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A 30.0 μg/m3 (28) 26.0 μg/m3 (81) 81.0
 
July 22, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A 38.0 μg/m3 (36) 27.0 μg/m3 (83) 83.0
 
July 22, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A 42.0 μg/m3 (39) 23.0 μg/m3 (74) 74.0
 
July 22, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A 44.0 μg/m3 (41) 28.0 μg/m3 (85) 85.0
 
July 22, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A 55.0 μg/m3 (51) 29.0 μg/m3 (87) 87.0
 
July 22, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 73.0 μg/m3 (60) 28.0 μg/m3 (85) 85.0
 
July 22, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 55.0 μg/m3 (51) 24.0 μg/m3 (77) 77.0
 
July 22, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 46.0 μg/m3 (43) 19.0 μg/m3 (66) 66.0
 
July 22, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 37.0 μg/m3 (35) 9.0 μg/m3 (38) 38.0
 
July 22, 2021, noon N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A 27.0 μg/m3 (25) 6.0 μg/m3 (25) 25.0
 
July 22, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) N/A 29.0 μg/m3 (27) 8.0 μg/m3 (34) 34.0
 
July 22, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) N/A 19.0 μg/m3 (18) 6.0 μg/m3 (25) 25.0
 
July 22, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) N/A 18.0 μg/m3 (17) 5.0 μg/m3 (21) 21.0
 
July 22, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (19) 7.0 μg/m3 (30) 30.0
 
July 22, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) N/A 17.0 μg/m3 (16) 6.0 μg/m3 (25) 25.0
 
July 22, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) N/A 18.0 μg/m3 (17) 6.0 μg/m3 (25) 25.0
 
July 22, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) N/A 21.0 μg/m3 (20) 6.0 μg/m3 (25) 25.0
 
July 22, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 34.0 μg/m3 (32) 6.0 μg/m3 (25) 32.0
 
July 22, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A 25.0 μg/m3 (24) 7.0 μg/m3 (30) 30.0
 
July 22, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) N/A 21.0 μg/m3 (20) 8.0 μg/m3 (34) 34.0
 
July 22, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) N/A 18.0 μg/m3 (17) 6.0 μg/m3 (25) 25.0
 
July 22, 2021, midnight N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A 13.0 μg/m3 (13) 5.0 μg/m3 (21) 21.0
 
July 21, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 12.0 μg/m3 (12) 4.0 μg/m3 (17) 17.0
 
July 21, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 12.0 μg/m3 (12) 0.0 μg/m3 (0) 28.0
 
July 21, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 11.0 μg/m3 (11) -2.0 μg/m3 (0) 27.0
 
July 21, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 11.0 μg/m3 (11) 0.0 μg/m3 (0) 25.0
 
July 21, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 9.0 μg/m3 (9) 4.0 μg/m3 (17) 27.0