AQSQID: 370630015

Site Name: Durham Armory

Location: Durham, NC

Reporting: True, Located: True

Current AQI: 50.0

Durham NC, US: 35.9919, -78.8964

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 16, 2019, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 55.0 ppb (42) N/A 17.0 μg/m3 (15) 12.0 μg/m3 (50) 50.0
 
July 16, 2019, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 57.0 ppb (44) N/A 22.0 μg/m3 (20) N/A 44.0
 
July 16, 2019, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 61.0 ppb (47) N/A 19.0 μg/m3 (17) N/A 47.0
 
July 16, 2019, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 57.0 ppb (44) N/A 21.0 μg/m3 (19) N/A 44.0
 
July 16, 2019, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 42.0 ppb (32) N/A 11.0 μg/m3 (10) N/A 32.0
 
July 16, 2019, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (22) N/A 11.0 μg/m3 (10) N/A 22.0
 
July 16, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 8.0 ppb (6) N/A 12.0 μg/m3 (11) 13.0 μg/m3 (52) 52.0
 
July 16, 2019, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 6.0 ppb (5) N/A 20.0 μg/m3 (18) 11.0 μg/m3 (46) 46.0
 
July 16, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 10.0 ppb (8) N/A 18.0 μg/m3 (16) 13.0 μg/m3 (52) 52.0
 
July 16, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A
July 16, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 20.0 μg/m3 (18) 13.0 μg/m3 (52) 52.0
 
July 16, 2019, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 14.0 ppb (11) N/A 10.0 μg/m3 (9) 10.0 μg/m3 (42) 42.0
 
July 16, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (15) N/A 15.0 μg/m3 (14) 11.0 μg/m3 (46) 46.0
 
July 16, 2019, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (19) N/A 17.0 μg/m3 (15) 9.0 μg/m3 (38) 38.0
 
July 16, 2019, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 34.0 ppb (26) N/A 7.0 μg/m3 (6) 8.0 μg/m3 (33) 33.0
 
July 16, 2019, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 43.0 ppb (33) N/A 17.0 μg/m3 (15) 6.0 μg/m3 (25) 33.0
 
July 16, 2019, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 51.0 ppb (39) N/A 20.0 μg/m3 (18) 15.0 μg/m3 (56) 56.0
 
July 16, 2019, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 51.0 ppb (39) N/A 26.0 μg/m3 (24) 12.0 μg/m3 (50) 50.0
 
July 15, 2019, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 49.0 ppb (38) N/A 18.0 μg/m3 (16) 9.0 μg/m3 (38) 38.0
 
July 15, 2019, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 49.0 ppb (38) N/A 20.0 μg/m3 (18) 9.0 μg/m3 (38) 38.0
 
July 15, 2019, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 53.0 ppb (41) N/A N/A N/A 41.0
 
July 15, 2019, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 57.0 ppb (44) N/A N/A N/A 44.0
 
July 15, 2019, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 57.0 ppb (44) N/A N/A N/A 44.0
 
July 15, 2019, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 56.0 ppb (43) N/A 11.0 μg/m3 (10) 9.0 μg/m3 (38) 43.0
 
July 15, 2019, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 55.0 ppb (42) N/A 18.0 μg/m3 (16) 11.0 μg/m3 (46) 46.0
 
July 15, 2019, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 53.0 ppb (41) N/A 16.0 μg/m3 (15) 12.0 μg/m3 (50) 50.0
 
July 15, 2019, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 50.0 ppb (38) N/A 18.0 μg/m3 (16) 10.0 μg/m3 (42) 42.0
 
July 15, 2019, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 46.0 ppb (35) N/A 13.0 μg/m3 (12) 11.0 μg/m3 (46) 46.0
 
July 15, 2019, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 40.0 ppb (31) N/A 21.0 μg/m3 (19) 12.0 μg/m3 (50) 50.0
 
July 15, 2019, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (22) N/A 15.0 μg/m3 (14) 11.0 μg/m3 (46) 46.0
 
July 15, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (17) N/A 17.0 μg/m3 (15) 10.0 μg/m3 (42) 42.0
 
July 15, 2019, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 6.0 ppb (5) N/A 13.0 μg/m3 (12) 8.0 μg/m3 (33) 33.0
 
July 15, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 8.0 ppb (6) N/A 12.0 μg/m3 (11) 15.0 μg/m3 (56) 56.0
 
July 15, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 15.0 μg/m3 (14) 12.0 μg/m3 (50) 50.0
 
July 15, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 13.0 μg/m3 (12) N/A 15.0
 
July 15, 2019, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 15.0 ppb (12) N/A 14.0 μg/m3 (13) N/A 13.0
 
July 15, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 14.0 ppb (11) N/A 7.0 μg/m3 (6) N/A 11.0
 
July 15, 2019, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 16.0 ppb (12) N/A 24.0 μg/m3 (22) N/A 22.0
 
July 15, 2019, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (15) N/A 15.0 μg/m3 (14) 14.0 μg/m3 (54) 54.0
 
July 15, 2019, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 26.0 ppb (20) N/A 16.0 μg/m3 (15) 15.0 μg/m3 (56) 56.0
 
July 15, 2019, 1 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 34.0 ppb (26) N/A 21.0 μg/m3 (19) 12.0 μg/m3 (50) 50.0
 
July 15, 2019, midnight N/A N/A N/A N/A N/A 1.0 ppb (1) 41.0 ppb (32) N/A 24.0 μg/m3 (22) 14.0 μg/m3 (54) 54.0
 
July 14, 2019, 10 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 63.0 ppb (48) N/A 15.0 μg/m3 (14) 8.0 μg/m3 (33) 48.0
 
July 14, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 63.0 ppb (48) N/A 16.0 μg/m3 (15) 6.0 μg/m3 (25) 48.0
 
July 14, 2019, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 61.0 ppb (47) N/A 10.0 μg/m3 (9) 7.0 μg/m3 (29) 47.0
 
July 14, 2019, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 54.0 ppb (42) N/A 11.0 μg/m3 (10) 10.0 μg/m3 (42) 42.0
 
July 14, 2019, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 51.0 ppb (39) N/A 10.0 μg/m3 (9) 7.0 μg/m3 (29) 39.0
 
July 14, 2019, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 52.0 ppb (40) N/A 11.0 μg/m3 (10) 11.0 μg/m3 (46) 46.0
 
July 14, 2019, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 51.0 ppb (39) N/A 12.0 μg/m3 (11) 6.0 μg/m3 (25) 39.0
 
July 14, 2019, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 54.0 ppb (42) N/A 15.0 μg/m3 (14) 5.0 μg/m3 (21) 42.0
 
July 14, 2019, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 53.0 ppb (41) N/A 17.0 μg/m3 (15) 6.0 μg/m3 (25) 41.0
 
July 14, 2019, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (25) N/A 13.0 μg/m3 (12) 7.0 μg/m3 (29) 29.0
 
July 14, 2019, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (18) N/A 12.0 μg/m3 (11) 5.0 μg/m3 (21) 21.0
 
July 14, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 12.0 ppb (9) N/A 7.0 μg/m3 (6) 6.0 μg/m3 (25) 25.0
 
July 14, 2019, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 9.0 ppb (7) N/A 12.0 μg/m3 (11) 8.0 μg/m3 (33) 33.0
 
July 14, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 13.0 ppb (10) N/A 14.0 μg/m3 (13) 9.0 μg/m3 (38) 38.0
 
July 14, 2019, 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 (8) 8.0 μg/m3 (33) 33.0
 
July 14, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 17.0 μg/m3 (15) 8.0 μg/m3 (33) 33.0
 
July 14, 2019, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (17) N/A 9.0 μg/m3 (8) 6.0 μg/m3 (25) 25.0
 
July 14, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (18) N/A 9.0 μg/m3 (8) 9.0 μg/m3 (38) 38.0
 
July 14, 2019, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (19) N/A 9.0 μg/m3 (8) 11.0 μg/m3 (46) 46.0
 
July 14, 2019, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (22) N/A 17.0 μg/m3 (15) 10.0 μg/m3 (42) 42.0
 
July 14, 2019, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 27.0 ppb (21) N/A 17.0 μg/m3 (15) 9.0 μg/m3 (38) 38.0
 
July 14, 2019, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (18) N/A 9.0 μg/m3 (8) 10.0 μg/m3 (42) 42.0
 
July 14, 2019, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 34.0 ppb (26) N/A 17.0 μg/m3 (15) 9.0 μg/m3 (38) 38.0
 
July 13, 2019, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 44.0 ppb (34) N/A 9.0 μg/m3 (8) 6.0 μg/m3 (25) 34.0
 
July 13, 2019, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 55.0 ppb (42) N/A 13.0 μg/m3 (12) 9.0 μg/m3 (38) 42.0
 
July 13, 2019, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 60.0 ppb (46) N/A 15.0 μg/m3 (14) 9.0 μg/m3 (38) 46.0
 
July 13, 2019, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 58.0 ppb (45) N/A 15.0 μg/m3 (14) 11.0 μg/m3 (46) 46.0
 
July 13, 2019, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 54.0 ppb (42) N/A 7.0 μg/m3 (6) 8.0 μg/m3 (33) 42.0
 
July 13, 2019, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 51.0 ppb (39) N/A 16.0 μg/m3 (15) 9.0 μg/m3 (38) 39.0
 
July 13, 2019, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 49.0 ppb (38) N/A 16.0 μg/m3 (15) 8.0 μg/m3 (33) 38.0
 
July 13, 2019, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 48.0 ppb (37) N/A 13.0 μg/m3 (12) 10.0 μg/m3 (42) 42.0
 
July 13, 2019, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 49.0 ppb (38) N/A 19.0 μg/m3 (17) 8.0 μg/m3 (33) 38.0
 
July 13, 2019, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 40.0 ppb (31) N/A 11.0 μg/m3 (10) 9.0 μg/m3 (38) 38.0
 
July 13, 2019, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (24) N/A 10.0 μg/m3 (9) 7.0 μg/m3 (29) 29.0
 
July 13, 2019, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (17) N/A 4.0 μg/m3 (4) 8.0 μg/m3 (33) 33.0
 
July 13, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 13.0 ppb (10) N/A 6.0 μg/m3 (5) 7.0 μg/m3 (29) 29.0
 
July 13, 2019, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 8.0 ppb (6) N/A 9.0 μg/m3 (8) 5.0 μg/m3 (21) 21.0
 
July 13, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 13.0 ppb (10) N/A 10.0 μg/m3 (9) 3.0 μg/m3 (12) 12.0
 
July 13, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 11.0 μg/m3 (10) 6.0 μg/m3 (25) 25.0
 
July 13, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 6.0 μg/m3 (5) 7.0 μg/m3 (29) 29.0
 
July 13, 2019, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (18) N/A 8.0 μg/m3 (7) 5.0 μg/m3 (21) 21.0
 
July 13, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 26.0 ppb (20) N/A 11.0 μg/m3 (10) 4.0 μg/m3 (17) 20.0
 
July 13, 2019, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 27.0 ppb (21) N/A 10.0 μg/m3 (9) 8.0 μg/m3 (33) 33.0
 
July 13, 2019, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (22) N/A 6.0 μg/m3 (5) 8.0 μg/m3 (33) 33.0
 
July 13, 2019, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (23) N/A 5.0 μg/m3 (5) 8.0 μg/m3 (33) 33.0
 
July 13, 2019, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (24) N/A 16.0 μg/m3 (15) 7.0 μg/m3 (29) 29.0
 
July 13, 2019, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 39.0 ppb (30) N/A 13.0 μg/m3 (12) 8.0 μg/m3 (33) 33.0
 
July 12, 2019, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (32) N/A 14.0 μg/m3 (13) 9.0 μg/m3 (38) 38.0
 
July 12, 2019, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 45.0 ppb (35) N/A 16.0 μg/m3 (15) 10.0 μg/m3 (42) 42.0
 
July 12, 2019, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 51.0 ppb (39) N/A 7.0 μg/m3 (6) 9.0 μg/m3 (38) 39.0
 
July 12, 2019, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 56.0 ppb (43) N/A 9.0 μg/m3 (8) 8.0 μg/m3 (33) 43.0
 
July 12, 2019, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 55.0 ppb (42) N/A 9.0 μg/m3 (8) 10.0 μg/m3 (42) 42.0
 
July 12, 2019, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 48.0 ppb (37) N/A 13.0 μg/m3 (12) 6.0 μg/m3 (25) 37.0
 
July 12, 2019, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 43.0 ppb (33) N/A 13.0 μg/m3 (12) 5.0 μg/m3 (21) 33.0
 
July 12, 2019, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 40.0 ppb (31) N/A 9.0 μg/m3 (8) 4.0 μg/m3 (17) 31.0
 
July 12, 2019, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (27) N/A 12.0 μg/m3 (11) 3.0 μg/m3 (12) 27.0
 
July 12, 2019, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (22) N/A 12.0 μg/m3 (11) 2.0 μg/m3 (8) 22.0
 
July 12, 2019, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 26.0 ppb (20) N/A 5.0 μg/m3 (5) 5.0 μg/m3 (21) 21.0
 
July 12, 2019, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (15) N/A 6.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
July 12, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 19.0 ppb (15) N/A 8.0 μg/m3 (7) 5.0 μg/m3 (21) 21.0
 
July 12, 2019, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 18.0 ppb (14) N/A 5.0 μg/m3 (5) 5.0 μg/m3 (21) 21.0
 
July 12, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 19.0 ppb (15) N/A 5.0 μg/m3 (5) 3.0 μg/m3 (12) 15.0
 
July 12, 2019, 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 (7) 1.0 μg/m3 (4) 7.0
 
July 12, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 8.0 μg/m3 (7) 2.0 μg/m3 (8) 22.0
 
July 12, 2019, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 21.0 ppb (16) N/A 12.0 μg/m3 (11) 5.0 μg/m3 (21) 21.0
 
July 12, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 16.0 ppb (12) N/A 10.0 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
July 12, 2019, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 15.0 ppb (12) N/A 7.0 μg/m3 (6) 5.0 μg/m3 (21) 21.0
 
July 12, 2019, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 15.0 ppb (12) N/A 8.0 μg/m3 (7) 4.0 μg/m3 (17) 17.0
 
July 12, 2019, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 14.0 ppb (11) N/A 8.0 μg/m3 (7) 6.0 μg/m3 (25) 25.0
 
July 12, 2019, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 18.0 ppb (14) N/A 14.0 μg/m3 (13) 5.0 μg/m3 (21) 21.0
 
July 12, 2019, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (23) N/A 13.0 μg/m3 (12) 8.0 μg/m3 (33) 33.0
 
July 11, 2019, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 40.0 ppb (31) N/A 11.0 μg/m3 (10) 12.0 μg/m3 (50) 50.0
 
July 11, 2019, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 39.0 ppb (30) N/A 16.0 μg/m3 (15) 6.0 μg/m3 (25) 30.0
 
July 11, 2019, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 38.0 ppb (29) N/A 10.0 μg/m3 (9) 7.0 μg/m3 (29) 29.0
 
July 11, 2019, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 38.0 ppb (29) N/A 12.0 μg/m3 (11) 8.0 μg/m3 (33) 33.0
 
July 11, 2019, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 38.0 ppb (29) N/A 17.0 μg/m3 (15) 4.0 μg/m3 (17) 29.0
 
July 11, 2019, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 37.0 ppb (28) N/A 10.0 μg/m3 (9) 5.0 μg/m3 (21) 28.0
 
July 11, 2019, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 38.0 ppb (29) N/A 11.0 μg/m3 (10) 8.0 μg/m3 (33) 33.0
 
July 11, 2019, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 37.0 ppb (28) N/A 15.0 μg/m3 (14) 6.0 μg/m3 (25) 28.0
 
July 11, 2019, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 37.0 ppb (28) N/A 14.0 μg/m3 (13) 7.0 μg/m3 (29) 29.0
 
July 11, 2019, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (25) N/A 13.0 μg/m3 (12) 4.0 μg/m3 (17) 25.0
 
July 11, 2019, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (18) N/A 15.0 μg/m3 (14) 4.0 μg/m3 (17) 18.0
 
July 11, 2019, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (15) N/A 18.0 μg/m3 (16) 6.0 μg/m3 (25) 25.0
 
July 11, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 18.0 ppb (14) N/A 17.0 μg/m3 (15) 8.0 μg/m3 (33) 33.0
 
July 11, 2019, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 19.0 ppb (15) N/A 11.0 μg/m3 (10) 8.0 μg/m3 (33) 33.0
 
July 11, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (15) N/A 6.0 μg/m3 (5) 5.0 μg/m3 (21) 21.0
 
July 11, 2019, 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 (8) 2.0 μg/m3 (8) 8.0
 
July 11, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 3.0 μg/m3 (3) 2.0 μg/m3 (8) 19.0
 
July 11, 2019, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (18) N/A 6.0 μg/m3 (5) 4.0 μg/m3 (17) 18.0
 
July 11, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 26.0 ppb (20) N/A 9.0 μg/m3 (8) 5.0 μg/m3 (21) 21.0
 
July 11, 2019, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (22) N/A 7.0 μg/m3 (6) 5.0 μg/m3 (21) 22.0
 
July 11, 2019, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (22) N/A 11.0 μg/m3 (10) 5.0 μg/m3 (21) 22.0
 
July 11, 2019, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (24) N/A 16.0 μg/m3 (15) 7.0 μg/m3 (29) 29.0
 
July 11, 2019, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 37.0 ppb (28) N/A 14.0 μg/m3 (13) 8.0 μg/m3 (33) 33.0
 
July 11, 2019, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 46.0 ppb (35) N/A 17.0 μg/m3 (15) 10.0 μg/m3 (42) 42.0
 
July 10, 2019, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 51.0 ppb (39) N/A 17.0 μg/m3 (15) 6.0 μg/m3 (25) 39.0
 
July 10, 2019, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 57.0 ppb (44) N/A 16.0 μg/m3 (15) 7.0 μg/m3 (29) 44.0
 
July 10, 2019, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 61.0 ppb (47) N/A 14.0 μg/m3 (13) 10.0 μg/m3 (42) 47.0
 
July 10, 2019, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 61.0 ppb (47) N/A 16.0 μg/m3 (15) 10.0 μg/m3 (42) 47.0
 
July 10, 2019, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 60.0 ppb (46) N/A 23.0 μg/m3 (21) 10.0 μg/m3 (42) 46.0
 
July 10, 2019, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 56.0 ppb (43) N/A 17.0 μg/m3 (15) 8.0 μg/m3 (33) 43.0
 
July 10, 2019, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 54.0 ppb (42) N/A 14.0 μg/m3 (13) 7.0 μg/m3 (29) 42.0
 
July 10, 2019, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 52.0 ppb (40) N/A 18.0 μg/m3 (16) 7.0 μg/m3 (29) 40.0
 
July 10, 2019, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 46.0 ppb (35) N/A 14.0 μg/m3 (13) 9.0 μg/m3 (38) 38.0
 
July 10, 2019, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (32) N/A 25.0 μg/m3 (23) 7.0 μg/m3 (29) 32.0
 
July 10, 2019, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (23) N/A 13.0 μg/m3 (12) 6.0 μg/m3 (25) 25.0
 
July 10, 2019, noon N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 16.0 μg/m3 (15) 9.0 μg/m3 (38) 38.0
 
July 10, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 19.0 ppb (15) N/A 9.0 μg/m3 (8) 7.0 μg/m3 (29) 29.0
 
July 10, 2019, 10 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 15.0 ppb (12) N/A 11.0 μg/m3 (10) 3.0 μg/m3 (12) 12.0
 
July 10, 2019, 9 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 19.0 ppb (15) N/A 13.0 μg/m3 (12) 5.0 μg/m3 (21) 21.0
 
July 10, 2019, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 12.0 μg/m3 (11) 7.0 μg/m3 (29) 29.0
 
July 10, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 12.0 μg/m3 (11) 7.0 μg/m3 (29) 29.0
 
July 10, 2019, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 19.0 ppb (15) N/A 18.0 μg/m3 (16) 7.0 μg/m3 (29) 29.0
 
July 10, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 12.0 ppb (9) N/A 13.0 μg/m3 (12) 5.0 μg/m3 (21) 21.0
 
July 10, 2019, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 12.0 ppb (9) N/A 19.0 μg/m3 (17) 6.0 μg/m3 (25) 25.0
 
July 10, 2019, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 8.0 ppb (6) N/A 15.0 μg/m3 (14) 7.0 μg/m3 (29) 29.0
 
July 10, 2019, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 7.0 ppb (5) N/A 16.0 μg/m3 (15) 8.0 μg/m3 (33) 33.0
 
July 10, 2019, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 18.0 ppb (14) N/A 13.0 μg/m3 (12) 9.0 μg/m3 (38) 38.0
 
July 10, 2019, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (22) N/A 10.0 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
July 9, 2019, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 34.0 ppb (26) N/A 7.0 μg/m3 (6) 4.0 μg/m3 (17) 26.0
 
July 9, 2019, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 36.0 ppb (28) N/A 11.0 μg/m3 (10) 4.0 μg/m3 (17) 28.0
 
July 9, 2019, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 38.0 ppb (29) N/A 7.0 μg/m3 (6) 2.0 μg/m3 (8) 29.0
 
July 9, 2019, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 38.0 ppb (29) N/A 7.0 μg/m3 (6) 1.0 μg/m3 (4) 29.0
 
July 9, 2019, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 38.0 ppb (29) N/A 7.0 μg/m3 (6) 5.0 μg/m3 (21) 29.0
 
July 9, 2019, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 40.0 ppb (31) N/A 8.0 μg/m3 (7) 8.0 μg/m3 (33) 33.0
 
July 9, 2019, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (32) N/A 11.0 μg/m3 (10) 4.0 μg/m3 (17) 32.0