ID: 1633

AQSQID: 370630015

Site Name: Durham Armory

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

Updated: May 12, 2021, 5:45 a.m.

Location: Durham (Stadium Dr), NC

Reporting: True, Located: True

Current AQI: 34.0

Durham (Stadium Dr) NC, US: 36.032955, -78.904037

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 12, 2021, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 6.0 ppb (6) N/A 15.0 μg/m3 (14) 8.0 μg/m3 (34) 34.0
 
May 12, 2021, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 8.0 ppb (8) N/A 16.0 μg/m3 (15) 15.0 μg/m3 (58) 58.0
 
May 12, 2021, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 11.0 ppb (11) N/A 15.0 μg/m3 (14) 8.0 μg/m3 (34) 34.0
 
May 12, 2021, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 13.0 ppb (13) N/A 12.0 μg/m3 (12) 8.0 μg/m3 (34) 34.0
 
May 12, 2021, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (28) N/A 16.0 μg/m3 (15) 7.0 μg/m3 (30) 30.0
 
May 11, 2021, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 43.0 ppb (40) N/A 18.0 μg/m3 (17) 7.0 μg/m3 (30) 40.0
 
May 11, 2021, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 50.0 ppb (47) N/A 15.0 μg/m3 (14) 5.0 μg/m3 (21) 47.0
 
May 11, 2021, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 50.0 ppb (47) N/A 11.0 μg/m3 (11) 4.0 μg/m3 (17) 47.0
 
May 11, 2021, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 48.0 ppb (45) N/A 11.0 μg/m3 (11) 3.0 μg/m3 (13) 45.0
 
May 11, 2021, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 47.0 ppb (44) N/A 13.0 μg/m3 (13) 4.0 μg/m3 (17) 44.0
 
May 11, 2021, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 47.0 ppb (44) N/A 10.0 μg/m3 (10) 4.0 μg/m3 (17) 44.0
 
May 11, 2021, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 45.0 ppb (42) N/A 12.0 μg/m3 (12) 5.0 μg/m3 (21) 42.0
 
May 11, 2021, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (38) N/A 16.0 μg/m3 (15) 6.0 μg/m3 (25) 38.0
 
May 11, 2021, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 39.0 ppb (37) N/A 11.0 μg/m3 (11) 5.0 μg/m3 (21) 37.0
 
May 11, 2021, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 37.0 ppb (35) N/A 9.0 μg/m3 (9) 5.0 μg/m3 (21) 35.0
 
May 11, 2021, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (28) N/A 10.0 μg/m3 (10) 3.0 μg/m3 (13) 28.0
 
May 11, 2021, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 21.0 ppb (20) N/A 10.0 μg/m3 (10) 4.0 μg/m3 (17) 20.0
 
May 11, 2021, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 19.0 ppb (18) N/A 7.0 μg/m3 (7) 5.0 μg/m3 (21) 21.0
 
May 11, 2021, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 18.0 ppb (17) N/A 10.0 μg/m3 (10) 6.0 μg/m3 (25) 25.0
 
May 11, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 19.0 ppb (18) N/A 11.0 μg/m3 (11) 2.0 μg/m3 (9) 18.0
 
May 11, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 8.0 μg/m3 (8) 5.0 μg/m3 (21) 21.0
 
May 11, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A 8.0 μg/m3 (8) 6.0 μg/m3 (25) 25.0
 
May 11, 2021, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 18.0 ppb (17) N/A 12.0 μg/m3 (12) 4.0 μg/m3 (17) 17.0
 
May 11, 2021, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 21.0 ppb (20) N/A 16.0 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
May 11, 2021, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (23) N/A 13.0 μg/m3 (13) 5.0 μg/m3 (21) 23.0
 
May 11, 2021, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (21) N/A 14.0 μg/m3 (13) 7.0 μg/m3 (30) 30.0
 
May 11, 2021, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (21) N/A 12.0 μg/m3 (12) 6.0 μg/m3 (25) 25.0
 
May 11, 2021, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (19) N/A 9.0 μg/m3 (9) 7.0 μg/m3 (30) 30.0
 
May 11, 2021, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (22) N/A 17.0 μg/m3 (16) 7.0 μg/m3 (30) 30.0
 
May 10, 2021, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (24) N/A 12.0 μg/m3 (12) 6.0 μg/m3 (25) 25.0
 
May 10, 2021, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (28) N/A 11.0 μg/m3 (11) 4.0 μg/m3 (17) 28.0
 
May 10, 2021, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 38.0 ppb (36) N/A 15.0 μg/m3 (14) 7.0 μg/m3 (30) 36.0
 
May 10, 2021, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 43.0 ppb (40) N/A 12.0 μg/m3 (12) 8.0 μg/m3 (34) 40.0
 
May 10, 2021, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 45.0 ppb (42) N/A 13.0 μg/m3 (13) 7.0 μg/m3 (30) 42.0
 
May 10, 2021, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 44.0 ppb (41) N/A 15.0 μg/m3 (14) 10.0 μg/m3 (42) 42.0
 
May 10, 2021, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 43.0 ppb (40) N/A 15.0 μg/m3 (14) 11.0 μg/m3 (46) 46.0
 
May 10, 2021, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 38.0 ppb (36) N/A N/A N/A 36.0
 
May 10, 2021, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 37.0 ppb (35) N/A N/A N/A 35.0
 
May 10, 2021, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A N/A 31.0
 
May 10, 2021, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (26) N/A 20.0 μg/m3 (19) 10.0 μg/m3 (42) 42.0
 
May 10, 2021, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (27) N/A 14.0 μg/m3 (13) 8.0 μg/m3 (34) 34.0
 
May 10, 2021, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (28) N/A 13.0 μg/m3 (13) 6.0 μg/m3 (25) 28.0
 
May 10, 2021, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 34.0 ppb (32) N/A 13.0 μg/m3 (13) 7.0 μg/m3 (30) 32.0
 
May 10, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (33) N/A 13.0 μg/m3 (13) 7.0 μg/m3 (30) 33.0
 
May 10, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 17.0 μg/m3 (16) 8.0 μg/m3 (34) 34.0
 
May 10, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A 16.0 μg/m3 (15) 9.0 μg/m3 (38) 48.0
 
May 10, 2021, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 53.0 ppb (50) N/A 16.0 μg/m3 (15) 10.0 μg/m3 (42) 50.0
 
May 10, 2021, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 54.0 ppb (50) N/A 18.0 μg/m3 (17) 12.0 μg/m3 (50) 50.0
 
May 10, 2021, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 55.0 ppb (51) N/A 19.0 μg/m3 (18) 10.0 μg/m3 (42) 51.0
 
May 10, 2021, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 55.0 ppb (51) N/A 19.0 μg/m3 (18) 9.0 μg/m3 (38) 51.0
 
May 10, 2021, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 54.0 ppb (50) N/A 18.0 μg/m3 (17) 9.0 μg/m3 (38) 50.0
 
May 10, 2021, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 54.0 ppb (50) N/A 20.0 μg/m3 (19) 11.0 μg/m3 (46) 50.0
 
May 10, 2021, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 54.0 ppb (50) N/A 19.0 μg/m3 (18) 6.0 μg/m3 (25) 50.0
 
May 9, 2021, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 57.0 ppb (58) N/A 19.0 μg/m3 (18) 6.0 μg/m3 (25) 58.0
 
May 9, 2021, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 57.0 ppb (58) N/A 19.0 μg/m3 (18) 7.0 μg/m3 (30) 58.0
 
May 9, 2021, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 57.0 ppb (58) N/A 20.0 μg/m3 (19) 7.0 μg/m3 (30) 58.0
 
May 9, 2021, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 56.0 ppb (55) N/A 19.0 μg/m3 (18) 5.0 μg/m3 (21) 55.0
 
May 9, 2021, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 54.0 ppb (50) N/A 17.0 μg/m3 (16) 7.0 μg/m3 (30) 50.0
 
May 9, 2021, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 50.0 ppb (47) N/A 15.0 μg/m3 (14) 8.0 μg/m3 (34) 47.0
 
May 9, 2021, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 47.0 ppb (44) N/A 17.0 μg/m3 (16) 5.0 μg/m3 (21) 44.0
 
May 9, 2021, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 45.0 ppb (42) N/A 5.0 μg/m3 (5) 2.0 μg/m3 (9) 42.0
 
May 9, 2021, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 43.0 ppb (40) N/A 6.0 μg/m3 (6) 4.0 μg/m3 (17) 40.0
 
May 9, 2021, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 40.0 ppb (38) N/A 6.0 μg/m3 (6) 4.0 μg/m3 (17) 38.0
 
May 9, 2021, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 39.0 ppb (37) N/A 6.0 μg/m3 (6) 5.0 μg/m3 (21) 37.0
 
May 9, 2021, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 36.0 ppb (34) N/A 8.0 μg/m3 (8) 7.0 μg/m3 (30) 34.0
 
May 9, 2021, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (30) N/A 10.0 μg/m3 (10) 6.0 μg/m3 (25) 30.0
 
May 9, 2021, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (29) N/A 8.0 μg/m3 (8) 5.0 μg/m3 (21) 29.0
 
May 9, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 36.0 ppb (34) N/A 10.0 μg/m3 (10) 4.0 μg/m3 (17) 34.0
 
May 9, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 8.0 μg/m3 (8) 5.0 μg/m3 (21) 21.0
 
May 9, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 11.0 μg/m3 (11) 7.0 μg/m3 (30) 30.0
 
May 9, 2021, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (24) N/A 15.0 μg/m3 (14) 11.0 μg/m3 (46) 46.0
 
May 9, 2021, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 12.0 ppb (12) N/A 13.0 μg/m3 (13) 9.0 μg/m3 (38) 38.0
 
May 9, 2021, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 11.0 ppb (11) N/A 11.0 μg/m3 (11) 8.0 μg/m3 (34) 34.0
 
May 9, 2021, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 15.0 ppb (14) N/A 14.0 μg/m3 (13) 6.0 μg/m3 (25) 25.0
 
May 9, 2021, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (24) N/A 16.0 μg/m3 (15) 8.0 μg/m3 (34) 34.0
 
May 9, 2021, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 18.0 ppb (17) N/A 28.0 μg/m3 (26) 17.0 μg/m3 (62) 62.0
 
May 9, 2021, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 19.0 ppb (18) N/A 9.0 μg/m3 (9) 5.0 μg/m3 (21) 21.0
 
May 8, 2021, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 43.0 ppb (40) N/A 12.0 μg/m3 (12) 4.0 μg/m3 (17) 40.0
 
May 8, 2021, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 48.0 ppb (45) N/A 11.0 μg/m3 (11) 4.0 μg/m3 (17) 45.0
 
May 8, 2021, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 49.0 ppb (46) N/A 13.0 μg/m3 (13) 3.0 μg/m3 (13) 46.0
 
May 8, 2021, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 49.0 ppb (46) N/A 13.0 μg/m3 (13) 3.0 μg/m3 (13) 46.0
 
May 8, 2021, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 49.0 ppb (46) N/A 20.0 μg/m3 (19) 4.0 μg/m3 (17) 46.0
 
May 8, 2021, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 50.0 ppb (47) N/A 19.0 μg/m3 (18) 5.0 μg/m3 (21) 47.0
 
May 8, 2021, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 49.0 ppb (46) N/A 18.0 μg/m3 (17) 5.0 μg/m3 (21) 46.0
 
May 8, 2021, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 49.0 ppb (46) N/A 20.0 μg/m3 (19) 6.0 μg/m3 (25) 46.0
 
May 8, 2021, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 46.0 ppb (43) N/A 14.0 μg/m3 (13) 6.0 μg/m3 (25) 43.0
 
May 8, 2021, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (38) N/A 13.0 μg/m3 (13) 8.0 μg/m3 (34) 38.0
 
May 8, 2021, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 34.0 ppb (32) N/A 13.0 μg/m3 (13) 7.0 μg/m3 (30) 32.0
 
May 8, 2021, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 11.0 ppb (11) N/A 12.0 μg/m3 (12) 6.0 μg/m3 (25) 25.0
 
May 8, 2021, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 8.0 ppb (8) N/A 14.0 μg/m3 (13) 7.0 μg/m3 (30) 30.0
 
May 8, 2021, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 6.0 ppb (6) N/A 9.0 μg/m3 (9) 3.0 μg/m3 (13) 13.0
 
May 8, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 5.0 ppb (5) N/A 11.0 μg/m3 (11) 3.0 μg/m3 (13) 13.0
 
May 8, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 9.0 μg/m3 (9) 5.0 μg/m3 (21) 21.0
 
May 8, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 10.0 μg/m3 (10) 6.0 μg/m3 (25) 25.0
 
May 8, 2021, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 1.0 ppb (1) N/A 10.0 μg/m3 (10) 6.0 μg/m3 (25) 25.0
 
May 8, 2021, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 0.0 ppb (0) N/A 11.0 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
May 8, 2021, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 2.0 ppb (2) N/A 15.0 μg/m3 (14) 8.0 μg/m3 (34) 34.0
 
May 8, 2021, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 3.0 ppb (3) N/A 15.0 μg/m3 (14) 8.0 μg/m3 (34) 34.0
 
May 8, 2021, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 3.0 ppb (3) N/A 8.0 μg/m3 (8) 5.0 μg/m3 (21) 21.0
 
May 8, 2021, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 5.0 ppb (5) N/A 16.0 μg/m3 (15) 8.0 μg/m3 (34) 34.0
 
May 8, 2021, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 8.0 ppb (8) N/A 17.0 μg/m3 (16) 6.0 μg/m3 (25) 25.0
 
May 7, 2021, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (27) N/A 13.0 μg/m3 (13) 4.0 μg/m3 (17) 27.0
 
May 7, 2021, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 38.0 ppb (36) N/A 5.0 μg/m3 (5) 4.0 μg/m3 (17) 36.0
 
May 7, 2021, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 37.0 ppb (35) N/A 6.0 μg/m3 (6) 4.0 μg/m3 (17) 35.0
 
May 7, 2021, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 40.0 ppb (38) N/A 7.0 μg/m3 (7) 4.0 μg/m3 (17) 38.0
 
May 7, 2021, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 40.0 ppb (38) N/A 11.0 μg/m3 (11) 4.0 μg/m3 (17) 38.0
 
May 7, 2021, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 38.0 ppb (36) N/A 8.0 μg/m3 (8) 5.0 μg/m3 (21) 36.0
 
May 7, 2021, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 42.0 ppb (39) N/A 5.0 μg/m3 (5) 4.0 μg/m3 (17) 39.0
 
May 7, 2021, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 43.0 ppb (40) N/A 5.0 μg/m3 (5) 1.0 μg/m3 (5) 40.0
 
May 7, 2021, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 36.0 ppb (34) N/A 7.0 μg/m3 (7) 3.0 μg/m3 (13) 34.0
 
May 7, 2021, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (27) N/A 7.0 μg/m3 (7) 8.0 μg/m3 (34) 34.0
 
May 7, 2021, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (28) N/A 12.0 μg/m3 (12) 13.0 μg/m3 (53) 53.0
 
May 7, 2021, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (22) N/A 15.0 μg/m3 (14) 12.0 μg/m3 (50) 50.0
 
May 7, 2021, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 8.0 ppb (8) N/A 17.0 μg/m3 (16) 9.0 μg/m3 (38) 38.0
 
May 7, 2021, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 5.0 ppb (5) N/A 16.0 μg/m3 (15) 8.0 μg/m3 (34) 34.0
 
May 7, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 2.0 ppb (2) N/A 11.0 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
May 7, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 13.0 μg/m3 (13) 10.0 μg/m3 (42) 42.0
 
May 7, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A 13.0 μg/m3 (13) 10.0 μg/m3 (42) 42.0
 
May 7, 2021, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 1.0 ppb (1) N/A 16.0 μg/m3 (15) 13.0 μg/m3 (53) 53.0
 
May 7, 2021, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 2.0 ppb (2) N/A 10.0 μg/m3 (10) 11.0 μg/m3 (46) 46.0
 
May 7, 2021, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 3.0 ppb (3) N/A 15.0 μg/m3 (14) 14.0 μg/m3 (55) 55.0
 
May 7, 2021, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 4.0 ppb (4) N/A 15.0 μg/m3 (14) 13.0 μg/m3 (53) 53.0
 
May 7, 2021, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 5.0 ppb (5) N/A 14.0 μg/m3 (13) 7.0 μg/m3 (30) 30.0
 
May 7, 2021, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 8.0 ppb (8) N/A 15.0 μg/m3 (14) 6.0 μg/m3 (25) 25.0
 
May 7, 2021, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (26) N/A 10.0 μg/m3 (10) 6.0 μg/m3 (25) 26.0
 
May 6, 2021, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 37.0 ppb (35) N/A 13.0 μg/m3 (13) 4.0 μg/m3 (17) 35.0
 
May 6, 2021, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 44.0 ppb (41) N/A 9.0 μg/m3 (9) 5.0 μg/m3 (21) 41.0
 
May 6, 2021, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 44.0 ppb (41) N/A 14.0 μg/m3 (13) 5.0 μg/m3 (21) 41.0
 
May 6, 2021, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 44.0 ppb (41) N/A 15.0 μg/m3 (14) 6.0 μg/m3 (25) 41.0
 
May 6, 2021, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 42.0 ppb (39) N/A 11.0 μg/m3 (11) 5.0 μg/m3 (21) 39.0
 
May 6, 2021, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (38) N/A 9.0 μg/m3 (9) 6.0 μg/m3 (25) 38.0
 
May 6, 2021, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 37.0 ppb (35) N/A 11.0 μg/m3 (11) 4.0 μg/m3 (17) 35.0
 
May 6, 2021, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (33) N/A 9.0 μg/m3 (9) 3.0 μg/m3 (13) 33.0
 
May 6, 2021, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (30) N/A 9.0 μg/m3 (9) 5.0 μg/m3 (21) 30.0
 
May 6, 2021, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 26.0 ppb (25) N/A 11.0 μg/m3 (11) 3.0 μg/m3 (13) 25.0
 
May 6, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 14.0 μg/m3 (13) 4.0 μg/m3 (17) 24.0
 
May 6, 2021, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (26) N/A 9.0 μg/m3 (9) 4.0 μg/m3 (17) 26.0
 
May 6, 2021, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 27.0 ppb (25) N/A 9.0 μg/m3 (9) 5.0 μg/m3 (21) 25.0
 
May 6, 2021, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 27.0 ppb (25) N/A 12.0 μg/m3 (12) 4.0 μg/m3 (17) 25.0
 
May 6, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (29) N/A 8.0 μg/m3 (8) 4.0 μg/m3 (17) 29.0
 
May 6, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 8.0 μg/m3 (8) 0.0 μg/m3 (0) 8.0
 
May 6, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 5.0 μg/m3 (5) 2.0 μg/m3 (9) 31.0
 
May 6, 2021, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (33) N/A 5.0 μg/m3 (5) 3.0 μg/m3 (13) 33.0
 
May 6, 2021, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 36.0 ppb (34) N/A 8.0 μg/m3 (8) 0.0 μg/m3 (0) 34.0
 
May 6, 2021, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 34.0 ppb (32) N/A 9.0 μg/m3 (9) -1.0 μg/m3 (0) 32.0
 
May 6, 2021, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (33) N/A 11.0 μg/m3 (11) 3.0 μg/m3 (13) 33.0
 
May 6, 2021, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 39.0 ppb (37) N/A 6.0 μg/m3 (6) 2.0 μg/m3 (9) 37.0
 
May 6, 2021, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 38.0 ppb (36) N/A 6.0 μg/m3 (6) 2.0 μg/m3 (9) 36.0
 
May 6, 2021, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 38.0 ppb (36) N/A 8.0 μg/m3 (8) 3.0 μg/m3 (13) 36.0
 
May 5, 2021, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (38) N/A 13.0 μg/m3 (13) 3.0 μg/m3 (13) 38.0
 
May 5, 2021, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 46.0 ppb (43) N/A 10.0 μg/m3 (10) 4.0 μg/m3 (17) 43.0
 
May 5, 2021, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 49.0 ppb (46) N/A 10.0 μg/m3 (10) 2.0 μg/m3 (9) 46.0
 
May 5, 2021, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 50.0 ppb (47) N/A 8.0 μg/m3 (8) 3.0 μg/m3 (13) 47.0
 
May 5, 2021, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 49.0 ppb (46) N/A 10.0 μg/m3 (10) 5.0 μg/m3 (21) 46.0
 
May 5, 2021, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 49.0 ppb (46) N/A 15.0 μg/m3 (14) 7.0 μg/m3 (30) 46.0
 
May 5, 2021, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 48.0 ppb (45) N/A 14.0 μg/m3 (13) 3.0 μg/m3 (13) 45.0
 
May 5, 2021, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 40.0 ppb (38) N/A 13.0 μg/m3 (13) 4.0 μg/m3 (17) 38.0
 
May 5, 2021, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (33) N/A 11.0 μg/m3 (11) 5.0 μg/m3 (21) 33.0
 
May 5, 2021, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (26) N/A 6.0 μg/m3 (6) 4.0 μg/m3 (17) 26.0
 
May 5, 2021, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (24) N/A 17.0 μg/m3 (16) 6.0 μg/m3 (25) 25.0
 
May 5, 2021, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (21) N/A 13.0 μg/m3 (13) 9.0 μg/m3 (38) 38.0
 
May 5, 2021, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 18.0 ppb (17) N/A 12.0 μg/m3 (12) 6.0 μg/m3 (25) 25.0
 
May 5, 2021, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 15.0 ppb (14) N/A 14.0 μg/m3 (13) 5.0 μg/m3 (21) 21.0
 
May 5, 2021, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 18.0 ppb (17) N/A 12.0 μg/m3 (12) 3.0 μg/m3 (13) 17.0
 
May 5, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 10.0 μg/m3 (10) 5.0 μg/m3 (21) 21.0
 
May 5, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 12.0 μg/m3 (12) 6.0 μg/m3 (25) 25.0
 
May 5, 2021, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 21.0 ppb (20) N/A 10.0 μg/m3 (10) 4.0 μg/m3 (17) 20.0
 
May 5, 2021, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 19.0 ppb (18) N/A 14.0 μg/m3 (13) 6.0 μg/m3 (25) 25.0