AQSQID: 370630099

Site Name: Burdens Creek

Location: Durham Co, NC

Reporting: True, Located: True

Current AQI: 43.0

Durham Co NC, US: 35.889402, -78.8747

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Nov. 19, 2019, 9 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 19.0 ppb (15) 0.17 ppb (2) 14.0 μg/m3 (13) 10.3 μg/m3 (43) 43.0
 
Nov. 19, 2019, 8 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 21.0 ppb (16) N/A 14.0 μg/m3 (13) 9.9 μg/m3 (41) 41.0
 
Nov. 19, 2019, 7 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 17.0 ppb (13) 0.17 ppb (2) 16.0 μg/m3 (15) 10.8 μg/m3 (45) 45.0
 
Nov. 19, 2019, 6 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 12.0 ppb (9) 0.18 ppb (2) 18.0 μg/m3 (16) 11.9 μg/m3 (50) 50.0
 
Nov. 19, 2019, 5 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 9.0 ppb (7) 0.19 ppb (2) 16.0 μg/m3 (15) 10.7 μg/m3 (45) 45.0
 
Nov. 19, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) 0.19 ppb (2) 15.0 μg/m3 (14) 10.2 μg/m3 (42) 42.0
 
Nov. 19, 2019, 3 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 10.0 ppb (8) 0.2 ppb (2) 15.0 μg/m3 (14) 11.2 μg/m3 (47) 47.0
 
Nov. 19, 2019, 2 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 9.0 ppb (7) 0.21 ppb (2) 16.0 μg/m3 (15) 11.8 μg/m3 (49) 49.0
 
Nov. 19, 2019, 1 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 7.0 ppb (5) 0.23 ppb (3) 16.0 μg/m3 (15) 12.7 μg/m3 (51) 51.0
 
Nov. 19, 2019, midnight N/A N/A N/A 13.0 ppb (12) N/A N/A 3.0 ppb (2) 0.28 ppb (3) 15.0 μg/m3 (14) 11.9 μg/m3 (50) 50.0
 
Nov. 18, 2019, 11 p.m. N/A N/A N/A 15.0 ppb (14) N/A N/A 2.0 ppb (2) 0.31 ppb (3) 15.0 μg/m3 (14) 11.3 μg/m3 (47) 47.0
 
Nov. 18, 2019, 10 p.m. N/A N/A N/A 15.0 ppb (14) N/A N/A 3.0 ppb (2) 0.29 ppb (3) 13.0 μg/m3 (12) 9.8 μg/m3 (41) 41.0
 
Nov. 18, 2019, 9 p.m. N/A N/A N/A 13.0 ppb (12) N/A N/A 9.0 ppb (7) 0.25 ppb (3) 12.0 μg/m3 (11) 8.4 μg/m3 (35) 35.0
 
Nov. 18, 2019, 8 p.m. N/A N/A N/A 8.0 ppb (7) N/A N/A 15.0 ppb (12) 0.22 ppb (2) 10.0 μg/m3 (9) 6.7 μg/m3 (28) 28.0
 
Nov. 18, 2019, 7 p.m. N/A N/A N/A 8.0 ppb (7) N/A N/A 16.0 ppb (12) 0.21 ppb (2) 10.0 μg/m3 (9) 6.6 μg/m3 (28) 28.0
 
Nov. 18, 2019, 6 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 18.0 ppb (14) 0.19 ppb (2) 13.0 μg/m3 (12) 9.2 μg/m3 (38) 38.0
 
Nov. 18, 2019, 5 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 18.0 ppb (14) 0.2 ppb (2) 15.0 μg/m3 (14) 10.4 μg/m3 (43) 43.0
 
Nov. 18, 2019, 4 p.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 19.0 ppb (15) 0.19 ppb (2) 19.0 μg/m3 (17) 10.6 μg/m3 (44) 44.0
 
Nov. 18, 2019, 3 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 21.0 ppb (16) 0.18 ppb (2) 16.0 μg/m3 (15) 9.6 μg/m3 (40) 40.0
 
Nov. 18, 2019, 2 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 21.0 ppb (16) 0.19 ppb (2) 18.0 μg/m3 (16) 10.6 μg/m3 (44) 44.0
 
Nov. 18, 2019, 1 p.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 20.0 ppb (15) 0.19 ppb (2) 19.0 μg/m3 (17) 10.8 μg/m3 (45) 45.0
 
Nov. 18, 2019, noon N/A N/A N/A 7.0 ppb (6) N/A N/A 19.0 ppb (15) 0.19 ppb (2) 17.0 μg/m3 (15) 10.0 μg/m3 (42) 42.0
 
Nov. 18, 2019, 11 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 22.0 ppb (17) 0.17 ppb (2) 15.0 μg/m3 (14) 8.8 μg/m3 (37) 37.0
 
Nov. 18, 2019, 10 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.17 ppb (2) 15.0 μg/m3 (14) 8.2 μg/m3 (34) 34.0
 
Nov. 18, 2019, 9 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 25.0 ppb (19) 0.15 ppb (2) 14.0 μg/m3 (13) 7.8 μg/m3 (32) 32.0
 
Nov. 18, 2019, 8 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 26.0 ppb (20) N/A 13.0 μg/m3 (12) 7.1 μg/m3 (30) 30.0
 
Nov. 18, 2019, 7 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 26.0 ppb (20) 0.15 ppb (2) 14.0 μg/m3 (13) 7.0 μg/m3 (29) 29.0
 
Nov. 18, 2019, 6 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 27.0 ppb (21) 0.15 ppb (2) 14.0 μg/m3 (13) 6.3 μg/m3 (26) 26.0
 
Nov. 18, 2019, 5 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 28.0 ppb (22) 0.15 ppb (2) 12.0 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
Nov. 18, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) 0.15 ppb (2) 12.0 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
Nov. 18, 2019, 3 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 29.0 ppb (22) 0.15 ppb (2) 11.0 μg/m3 (10) 5.6 μg/m3 (23) 23.0
 
Nov. 18, 2019, 2 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 28.0 ppb (22) 0.15 ppb (2) 11.0 μg/m3 (10) 5.5 μg/m3 (23) 23.0
 
Nov. 18, 2019, 1 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 28.0 ppb (22) 0.16 ppb (2) 11.0 μg/m3 (10) 5.4 μg/m3 (23) 23.0
 
Nov. 18, 2019, midnight N/A N/A N/A 5.0 ppb (5) N/A N/A 29.0 ppb (22) 0.16 ppb (2) 11.0 μg/m3 (10) 5.2 μg/m3 (22) 22.0
 
Nov. 17, 2019, 11 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 29.0 ppb (22) 0.16 ppb (2) 11.0 μg/m3 (10) 5.0 μg/m3 (21) 22.0
 
Nov. 17, 2019, 10 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 30.0 ppb (23) 0.15 ppb (2) 10.0 μg/m3 (9) 5.0 μg/m3 (21) 23.0
 
Nov. 17, 2019, 9 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 32.0 ppb (25) 0.15 ppb (2) 10.0 μg/m3 (9) 4.6 μg/m3 (19) 25.0
 
Nov. 17, 2019, 8 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 33.0 ppb (25) 0.15 ppb (2) 11.0 μg/m3 (10) 4.5 μg/m3 (19) 25.0
 
Nov. 17, 2019, 7 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 33.0 ppb (25) 0.15 ppb (2) 10.0 μg/m3 (9) 4.5 μg/m3 (19) 25.0
 
Nov. 17, 2019, 6 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 34.0 ppb (26) 0.15 ppb (2) 10.0 μg/m3 (9) 4.4 μg/m3 (18) 26.0
 
Nov. 17, 2019, 5 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 33.0 ppb (25) 0.15 ppb (2) 10.0 μg/m3 (9) 4.6 μg/m3 (19) 25.0
 
Nov. 17, 2019, 4 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 32.0 ppb (25) 0.15 ppb (2) 12.0 μg/m3 (11) 4.8 μg/m3 (20) 25.0
 
Nov. 17, 2019, 3 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 31.0 ppb (24) 0.15 ppb (2) 12.0 μg/m3 (11) 5.4 μg/m3 (23) 24.0
 
Nov. 17, 2019, 2 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 30.0 ppb (23) 0.15 ppb (2) 12.0 μg/m3 (11) 5.7 μg/m3 (24) 24.0
 
Nov. 17, 2019, 1 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 30.0 ppb (23) 0.15 ppb (2) 12.0 μg/m3 (11) 5.7 μg/m3 (24) 24.0
 
Nov. 17, 2019, noon N/A N/A N/A 4.0 ppb (4) N/A N/A 30.0 ppb (23) 0.14 ppb (2) 14.0 μg/m3 (13) 5.6 μg/m3 (23) 23.0
 
Nov. 17, 2019, 11 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 31.0 ppb (24) 0.14 ppb (2) 14.0 μg/m3 (13) 5.4 μg/m3 (23) 24.0
 
Nov. 17, 2019, 10 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A N/A 0.14 ppb (2) 14.0 μg/m3 (13) 5.5 μg/m3 (23) 23.0
 
Nov. 17, 2019, 9 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A 0.14 ppb (2) 14.0 μg/m3 (13) 5.6 μg/m3 (23) 23.0
 
Nov. 17, 2019, 8 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 32.0 ppb (25) N/A 15.0 μg/m3 (14) 5.8 μg/m3 (24) 25.0
 
Nov. 17, 2019, 7 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 33.0 ppb (25) 0.14 ppb (2) 14.0 μg/m3 (13) 6.0 μg/m3 (25) 25.0
 
Nov. 17, 2019, 6 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 35.0 ppb (27) 0.13 ppb (1) 15.0 μg/m3 (14) 6.0 μg/m3 (25) 27.0
 
Nov. 17, 2019, 5 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 35.0 ppb (27) 0.13 ppb (1) 16.0 μg/m3 (15) 6.1 μg/m3 (25) 27.0
 
Nov. 17, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) 0.13 ppb (1) 15.0 μg/m3 (14) 6.6 μg/m3 (28) 28.0
 
Nov. 17, 2019, 3 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 35.0 ppb (27) 0.14 ppb (2) 15.0 μg/m3 (14) 6.6 μg/m3 (28) 28.0
 
Nov. 17, 2019, 2 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 34.0 ppb (26) 0.14 ppb (2) 14.0 μg/m3 (13) 7.0 μg/m3 (29) 29.0
 
Nov. 17, 2019, 1 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 33.0 ppb (25) 0.14 ppb (2) 14.0 μg/m3 (13) 7.2 μg/m3 (30) 30.0
 
Nov. 17, 2019, midnight N/A N/A N/A 4.0 ppb (4) N/A N/A 33.0 ppb (25) 0.14 ppb (2) 15.0 μg/m3 (14) 7.3 μg/m3 (30) 30.0
 
Nov. 16, 2019, 11 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 34.0 ppb (26) 0.15 ppb (2) 15.0 μg/m3 (14) 7.5 μg/m3 (31) 31.0
 
Nov. 16, 2019, 10 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 32.0 ppb (25) 0.16 ppb (2) 16.0 μg/m3 (15) 8.2 μg/m3 (34) 34.0
 
Nov. 16, 2019, 9 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 32.0 ppb (25) 0.16 ppb (2) 16.0 μg/m3 (15) 8.5 μg/m3 (35) 35.0
 
Nov. 16, 2019, 8 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 32.0 ppb (25) 0.16 ppb (2) 17.0 μg/m3 (15) 9.0 μg/m3 (38) 38.0
 
Nov. 16, 2019, 7 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 32.0 ppb (25) 0.17 ppb (2) 17.0 μg/m3 (15) 9.8 μg/m3 (41) 41.0
 
Nov. 16, 2019, 6 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 31.0 ppb (24) 0.17 ppb (2) 16.0 μg/m3 (15) 10.6 μg/m3 (44) 44.0
 
Nov. 16, 2019, 5 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 30.0 ppb (23) 0.18 ppb (2) 18.0 μg/m3 (16) 11.8 μg/m3 (49) 49.0
 
Nov. 16, 2019, 4 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 28.0 ppb (22) 0.19 ppb (2) 19.0 μg/m3 (17) 12.4 μg/m3 (51) 51.0
 
Nov. 16, 2019, 3 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 25.0 ppb (19) 0.19 ppb (2) 19.0 μg/m3 (17) 13.1 μg/m3 (52) 52.0
 
Nov. 16, 2019, 2 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 24.0 ppb (18) 0.2 ppb (2) 20.0 μg/m3 (18) 13.6 μg/m3 (53) 53.0
 
Nov. 16, 2019, 1 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 24.0 ppb (18) 0.2 ppb (2) 20.0 μg/m3 (18) 12.5 μg/m3 (51) 51.0
 
Nov. 16, 2019, noon N/A N/A N/A 5.0 ppb (5) N/A N/A 25.0 ppb (19) 0.2 ppb (2) 18.0 μg/m3 (16) 11.5 μg/m3 (48) 48.0
 
Nov. 16, 2019, 11 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 26.0 ppb (20) 0.2 ppb (2) 21.0 μg/m3 (19) 13.2 μg/m3 (53) 53.0
 
Nov. 16, 2019, 10 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A N/A 0.21 ppb (2) 22.0 μg/m3 (20) 14.6 μg/m3 (56) 56.0
 
Nov. 16, 2019, 9 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 27.0 ppb (21) 0.21 ppb (2) 22.0 μg/m3 (20) 13.6 μg/m3 (53) 53.0
 
Nov. 16, 2019, 8 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 26.0 ppb (20) N/A 21.0 μg/m3 (19) 13.3 μg/m3 (53) 53.0
 
Nov. 16, 2019, 7 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 24.0 ppb (18) 0.22 ppb (2) 21.0 μg/m3 (19) 13.6 μg/m3 (53) 53.0
 
Nov. 16, 2019, 6 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 22.0 ppb (17) 0.22 ppb (2) 21.0 μg/m3 (19) 14.1 μg/m3 (54) 54.0
 
Nov. 16, 2019, 5 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 22.0 ppb (17) 0.22 ppb (2) 21.0 μg/m3 (19) 14.3 μg/m3 (55) 55.0
 
Nov. 16, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) 0.25 ppb (3) 20.0 μg/m3 (18) 13.9 μg/m3 (54) 54.0
 
Nov. 16, 2019, 3 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 20.0 ppb (15) 0.25 ppb (3) 20.0 μg/m3 (18) 13.2 μg/m3 (53) 53.0
 
Nov. 16, 2019, 2 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 25.0 ppb (19) 0.23 ppb (3) 17.0 μg/m3 (15) 11.4 μg/m3 (48) 48.0
 
Nov. 16, 2019, 1 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 22.0 ppb (17) 0.25 ppb (3) 17.0 μg/m3 (15) 11.9 μg/m3 (50) 50.0
 
Nov. 16, 2019, midnight N/A N/A N/A 6.0 ppb (6) N/A N/A 23.0 ppb (18) 0.24 ppb (3) 16.0 μg/m3 (15) 11.0 μg/m3 (46) 46.0
 
Nov. 15, 2019, 11 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 24.0 ppb (18) 0.23 ppb (3) 16.0 μg/m3 (15) 10.7 μg/m3 (45) 45.0
 
Nov. 15, 2019, 10 p.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 17.0 ppb (13) 0.26 ppb (3) 16.0 μg/m3 (15) 11.1 μg/m3 (46) 46.0
 
Nov. 15, 2019, 9 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 16.0 ppb (12) 0.26 ppb (3) 16.0 μg/m3 (15) 12.1 μg/m3 (50) 50.0
 
Nov. 15, 2019, 8 p.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 15.0 ppb (12) 0.27 ppb (3) 18.0 μg/m3 (16) 12.7 μg/m3 (51) 51.0
 
Nov. 15, 2019, 7 p.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 15.0 ppb (12) 0.26 ppb (3) 18.0 μg/m3 (16) 12.5 μg/m3 (51) 51.0
 
Nov. 15, 2019, 6 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 16.0 ppb (12) 0.25 ppb (3) 17.0 μg/m3 (15) 12.3 μg/m3 (51) 51.0
 
Nov. 15, 2019, 5 p.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 16.0 ppb (12) 0.23 ppb (3) 26.0 μg/m3 (24) 19.9 μg/m3 (67) 67.0
 
Nov. 15, 2019, 4 p.m. N/A N/A N/A 9.0 ppb (8) N/A N/A 13.0 ppb (10) 0.17 ppb (2) 22.0 μg/m3 (20) 15.3 μg/m3 (57) 57.0
 
Nov. 15, 2019, 3 p.m. N/A N/A N/A 11.0 ppb (10) N/A N/A 10.0 ppb (8) 0.17 ppb (2) 21.0 μg/m3 (19) 14.1 μg/m3 (54) 54.0
 
Nov. 15, 2019, 2 p.m. N/A N/A N/A 11.0 ppb (10) N/A N/A 10.0 ppb (8) 0.18 ppb (2) 23.0 μg/m3 (21) 15.4 μg/m3 (57) 57.0
 
Nov. 15, 2019, 1 p.m. N/A N/A N/A 11.0 ppb (10) N/A N/A 10.0 ppb (8) 0.18 ppb (2) 21.0 μg/m3 (19) 16.2 μg/m3 (59) 59.0
 
Nov. 15, 2019, noon N/A N/A N/A 10.0 ppb (9) N/A N/A 10.0 ppb (8) 0.19 ppb (2) 21.0 μg/m3 (19) 17.3 μg/m3 (61) 61.0
 
Nov. 15, 2019, 11 a.m. N/A N/A N/A 8.0 ppb (7) N/A N/A 11.0 ppb (8) 0.17 ppb (2) 22.0 μg/m3 (20) 17.5 μg/m3 (62) 62.0
 
Nov. 15, 2019, 10 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A N/A 0.14 ppb (2) 23.0 μg/m3 (21) 18.8 μg/m3 (64) 64.0
 
Nov. 15, 2019, 9 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 13.0 ppb (10) 0.13 ppb (1) 21.0 μg/m3 (19) 17.5 μg/m3 (62) 62.0
 
Nov. 15, 2019, 8 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 13.0 ppb (10) N/A 19.0 μg/m3 (17) 16.2 μg/m3 (59) 59.0
 
Nov. 15, 2019, 7 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 16.0 ppb (12) N/A 17.0 μg/m3 (15) 14.2 μg/m3 (55) 55.0
 
Nov. 15, 2019, 6 a.m. N/A N/A N/A 9.0 ppb (8) N/A N/A 17.0 ppb (13) 0.15 ppb (2) 15.0 μg/m3 (14) 11.6 μg/m3 (48) 48.0
 
Nov. 15, 2019, 5 a.m. N/A N/A N/A 9.0 ppb (8) N/A N/A 18.0 ppb (14) 0.18 ppb (2) 12.0 μg/m3 (11) 9.2 μg/m3 (38) 38.0
 
Nov. 15, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) 0.14 ppb (2) 10.0 μg/m3 (9) 7.3 μg/m3 (30) 30.0
 
Nov. 15, 2019, 3 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 25.0 ppb (19) 0.13 ppb (1) 12.0 μg/m3 (11) 8.9 μg/m3 (37) 37.0
 
Nov. 15, 2019, 2 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 23.0 ppb (18) 0.13 ppb (1) 16.0 μg/m3 (15) 10.9 μg/m3 (45) 45.0
 
Nov. 15, 2019, 1 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 20.0 ppb (15) 0.14 ppb (2) 17.0 μg/m3 (15) 11.5 μg/m3 (48) 48.0
 
Nov. 15, 2019, midnight N/A N/A N/A 10.0 ppb (9) N/A N/A 18.0 ppb (14) 0.18 ppb (2) 18.0 μg/m3 (16) 11.3 μg/m3 (47) 47.0
 
Nov. 14, 2019, 11 p.m. N/A N/A N/A 15.0 ppb (14) N/A N/A 15.0 ppb (12) 0.19 ppb (2) 21.0 μg/m3 (19) 9.0 μg/m3 (38) 38.0
 
Nov. 14, 2019, 10 p.m. N/A N/A N/A 22.0 ppb (20) N/A N/A 11.0 ppb (8) 0.18 ppb (2) 26.0 μg/m3 (24) 9.0 μg/m3 (38) 38.0
 
Nov. 14, 2019, 9 p.m. N/A N/A N/A 14.0 ppb (13) N/A N/A 19.0 ppb (15) 0.11 ppb (1) 23.0 μg/m3 (21) 8.0 μg/m3 (33) 33.0
 
Nov. 14, 2019, 8 p.m. N/A N/A N/A 10.0 ppb (9) N/A N/A 25.0 ppb (19) 0.08 ppb (1) 17.0 μg/m3 (15) 7.6 μg/m3 (32) 32.0
 
Nov. 14, 2019, 7 p.m. N/A N/A N/A 9.0 ppb (8) N/A N/A 25.0 ppb (19) 0.1 ppb (1) 18.0 μg/m3 (16) 8.1 μg/m3 (34) 34.0
 
Nov. 14, 2019, 6 p.m. N/A N/A N/A 9.0 ppb (8) N/A N/A 25.0 ppb (19) 0.13 ppb (1) 15.0 μg/m3 (14) 8.1 μg/m3 (34) 34.0
 
Nov. 14, 2019, 5 p.m. N/A N/A N/A 8.0 ppb (7) N/A N/A 26.0 ppb (20) 0.15 ppb (2) 16.0 μg/m3 (15) 8.1 μg/m3 (34) 34.0
 
Nov. 14, 2019, 4 p.m. N/A N/A N/A 8.0 ppb (7) N/A N/A 26.0 ppb (20) 0.14 ppb (2) 16.0 μg/m3 (15) 7.6 μg/m3 (32) 32.0
 
Nov. 14, 2019, 3 p.m. N/A N/A N/A 12.0 ppb (11) N/A N/A 19.0 ppb (15) 0.22 ppb (2) 17.0 μg/m3 (15) 9.2 μg/m3 (38) 38.0
 
Nov. 14, 2019, 2 p.m. N/A N/A N/A 17.0 ppb (16) N/A N/A 8.0 ppb (6) 0.39 ppb (4) 20.0 μg/m3 (18) 12.9 μg/m3 (52) 52.0
 
Nov. 14, 2019, 1 p.m. N/A N/A N/A 16.0 ppb (15) N/A N/A 3.0 ppb (2) 0.43 ppb (5) 19.0 μg/m3 (17) 12.3 μg/m3 (51) 51.0
 
Nov. 14, 2019, noon N/A N/A N/A 16.0 ppb (15) N/A N/A 1.0 ppb (1) 0.35 ppb (4) 17.0 μg/m3 (15) 11.9 μg/m3 (50) 50.0
 
Nov. 14, 2019, 11 a.m. N/A N/A N/A 17.0 ppb (16) N/A N/A 0.0 ppb (0) 0.37 ppb (4) 18.0 μg/m3 (16) 12.0 μg/m3 (50) 50.0
 
Nov. 14, 2019, 10 a.m. N/A N/A N/A 15.0 ppb (14) N/A N/A N/A 0.38 ppb (4) 18.0 μg/m3 (16) 12.3 μg/m3 (51) 51.0
 
Nov. 14, 2019, 9 a.m. N/A N/A N/A 16.0 ppb (15) N/A N/A 0.0 ppb (0) 0.37 ppb (4) 16.0 μg/m3 (15) 11.3 μg/m3 (47) 47.0
 
Nov. 14, 2019, 8 a.m. N/A N/A N/A 15.0 ppb (14) N/A N/A 0.0 ppb (0) N/A 16.0 μg/m3 (15) 10.7 μg/m3 (45) 45.0
 
Nov. 14, 2019, 7 a.m. N/A N/A N/A 17.0 ppb (16) N/A N/A 0.0 ppb (0) 0.39 ppb (4) 15.0 μg/m3 (14) 9.2 μg/m3 (38) 38.0
 
Nov. 14, 2019, 6 a.m. N/A N/A N/A 17.0 ppb (16) N/A N/A 1.0 ppb (1) 0.42 ppb (5) 15.0 μg/m3 (14) 8.7 μg/m3 (36) 36.0
 
Nov. 14, 2019, 5 a.m. N/A N/A N/A 18.0 ppb (17) N/A N/A 1.0 ppb (1) 0.43 ppb (5) 13.0 μg/m3 (12) 8.2 μg/m3 (34) 34.0
 
Nov. 14, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) 0.45 ppb (5) 12.0 μg/m3 (11) 7.1 μg/m3 (30) 30.0
 
Nov. 14, 2019, 3 a.m. N/A N/A N/A 21.0 ppb (19) N/A N/A 0.0 ppb (0) 0.52 ppb (6) 12.0 μg/m3 (11) 6.3 μg/m3 (26) 26.0
 
Nov. 14, 2019, 2 a.m. N/A N/A N/A 21.0 ppb (19) N/A N/A 0.0 ppb (0) 0.5 ppb (6) 11.0 μg/m3 (10) 5.5 μg/m3 (23) 23.0
 
Nov. 14, 2019, 1 a.m. N/A N/A N/A 24.0 ppb (22) N/A N/A 0.0 ppb (0) 0.44 ppb (5) 10.0 μg/m3 (9) 5.2 μg/m3 (22) 22.0
 
Nov. 14, 2019, midnight N/A N/A N/A 23.0 ppb (21) N/A N/A 4.0 ppb (3) 0.32 ppb (4) 10.0 μg/m3 (9) 4.9 μg/m3 (20) 21.0
 
Nov. 13, 2019, 11 p.m. N/A N/A N/A 18.0 ppb (17) N/A N/A 13.0 ppb (10) 0.23 ppb (3) 10.0 μg/m3 (9) 4.6 μg/m3 (19) 19.0
 
Nov. 13, 2019, 10 p.m. N/A N/A N/A 12.0 ppb (11) N/A N/A 25.0 ppb (19) 0.09 ppb (1) 8.0 μg/m3 (7) 4.0 μg/m3 (17) 19.0
 
Nov. 13, 2019, 9 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 35.0 ppb (27) 0.03 ppb (0) 7.0 μg/m3 (6) 3.8 μg/m3 (16) 27.0
 
Nov. 13, 2019, 8 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 37.0 ppb (28) 0.05 ppb (1) 6.0 μg/m3 (5) 3.7 μg/m3 (15) 28.0
 
Nov. 13, 2019, 7 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 37.0 ppb (28) 0.06 ppb (1) 6.0 μg/m3 (5) 3.7 μg/m3 (15) 28.0
 
Nov. 13, 2019, 6 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 36.0 ppb (28) 0.07 ppb (1) 6.0 μg/m3 (5) 3.6 μg/m3 (15) 28.0
 
Nov. 13, 2019, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 35.0 ppb (27) N/A 6.0 μg/m3 (5) 3.5 μg/m3 (15) 27.0
 
Nov. 13, 2019, 4 p.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 33.0 ppb (25) 0.13 ppb (1) 7.0 μg/m3 (6) 3.6 μg/m3 (15) 25.0
 
Nov. 13, 2019, 3 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 31.0 ppb (24) 0.14 ppb (2) 7.0 μg/m3 (6) 3.8 μg/m3 (16) 24.0
 
Nov. 13, 2019, 2 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 29.0 ppb (22) 0.17 ppb (2) 9.0 μg/m3 (8) 4.1 μg/m3 (17) 22.0
 
Nov. 13, 2019, 1 p.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 26.0 ppb (20) 0.18 ppb (2) 8.0 μg/m3 (7) 4.1 μg/m3 (17) 20.0
 
Nov. 13, 2019, noon N/A N/A N/A 10.0 ppb (9) N/A N/A 23.0 ppb (18) 0.26 ppb (3) 8.0 μg/m3 (7) 4.0 μg/m3 (17) 18.0
 
Nov. 13, 2019, 11 a.m. N/A N/A N/A 10.0 ppb (9) N/A N/A 22.0 ppb (17) 0.26 ppb (3) 7.0 μg/m3 (6) 3.8 μg/m3 (16) 17.0
 
Nov. 13, 2019, 10 a.m. N/A N/A N/A 7.0 ppb (6) N/A N/A N/A 0.2 ppb (2) 6.0 μg/m3 (5) 3.6 μg/m3 (15) 15.0
 
Nov. 13, 2019, 9 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 28.0 ppb (22) 0.17 ppb (2) 6.0 μg/m3 (5) 3.6 μg/m3 (15) 22.0
 
Nov. 13, 2019, 8 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 29.0 ppb (22) N/A 6.0 μg/m3 (5) 3.3 μg/m3 (14) 22.0
 
Nov. 13, 2019, 7 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 30.0 ppb (23) 0.21 ppb (2) 5.0 μg/m3 (5) 3.3 μg/m3 (14) 23.0
 
Nov. 13, 2019, 6 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 31.0 ppb (24) 0.2 ppb (2) 6.0 μg/m3 (5) 3.3 μg/m3 (14) 24.0
 
Nov. 13, 2019, 5 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 32.0 ppb (25) 0.23 ppb (3) 6.0 μg/m3 (5) 3.5 μg/m3 (15) 25.0
 
Nov. 13, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) 0.22 ppb (2) 7.0 μg/m3 (6) 3.2 μg/m3 (13) 24.0
 
Nov. 13, 2019, 3 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 29.0 ppb (22) 0.18 ppb (2) 6.0 μg/m3 (5) 3.3 μg/m3 (14) 22.0
 
Nov. 13, 2019, 2 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 31.0 ppb (24) 0.18 ppb (2) 8.0 μg/m3 (7) 3.4 μg/m3 (14) 24.0
 
Nov. 13, 2019, 1 a.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 30.0 ppb (23) 0.15 ppb (2) 8.0 μg/m3 (7) 3.9 μg/m3 (16) 23.0
 
Nov. 13, 2019, midnight N/A N/A N/A 5.0 ppb (5) N/A N/A 28.0 ppb (22) 0.16 ppb (2) 7.0 μg/m3 (6) 3.9 μg/m3 (16) 22.0
 
Nov. 12, 2019, 11 p.m. N/A N/A N/A 8.0 ppb (7) N/A N/A 17.0 ppb (13) 0.21 ppb (2) 9.0 μg/m3 (8) 4.9 μg/m3 (20) 20.0
 
Nov. 12, 2019, 10 p.m. N/A N/A N/A 9.0 ppb (8) N/A N/A 11.0 ppb (8) 0.22 ppb (2) 8.0 μg/m3 (7) 5.0 μg/m3 (21) 21.0
 
Nov. 12, 2019, 9 p.m. N/A N/A N/A 8.0 ppb (7) N/A N/A 14.0 ppb (11) 0.2 ppb (2) 7.0 μg/m3 (6) 4.4 μg/m3 (18) 18.0
 
Nov. 12, 2019, 8 p.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 15.0 ppb (12) 0.18 ppb (2) 7.0 μg/m3 (6) 3.7 μg/m3 (15) 15.0
 
Nov. 12, 2019, 7 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 17.0 ppb (13) 0.17 ppb (2) 4.0 μg/m3 (4) 2.6 μg/m3 (11) 13.0
 
Nov. 12, 2019, 6 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 19.0 ppb (15) 0.17 ppb (2) 4.0 μg/m3 (4) 2.2 μg/m3 (9) 15.0
 
Nov. 12, 2019, 5 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 16.0 ppb (12) 0.19 ppb (2) 4.0 μg/m3 (4) 1.8 μg/m3 (8) 12.0
 
Nov. 12, 2019, 4 p.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 16.0 ppb (12) 0.17 ppb (2) 5.0 μg/m3 (5) 1.6 μg/m3 (7) 12.0
 
Nov. 12, 2019, 3 p.m. N/A N/A N/A 4.0 ppb (4) N/A N/A 14.0 ppb (11) 0.18 ppb (2) 4.0 μg/m3 (4) 1.9 μg/m3 (8) 11.0
 
Nov. 12, 2019, 2 p.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 17.0 ppb (13) 0.21 ppb (2) 19.0 μg/m3 (17) 13.2 μg/m3 (53) 53.0
 
Nov. 12, 2019, 1 p.m. N/A N/A N/A 7.0 ppb (6) N/A N/A 18.0 ppb (14) 0.22 ppb (2) 25.0 μg/m3 (23) 18.1 μg/m3 (63) 63.0
 
Nov. 12, 2019, noon N/A N/A N/A 6.0 ppb (6) N/A N/A 18.0 ppb (14) 0.2 ppb (2) 24.0 μg/m3 (22) 16.8 μg/m3 (60) 60.0
 
Nov. 12, 2019, 11 a.m. N/A N/A N/A 6.0 ppb (6) N/A N/A 25.0 ppb (19) 0.2 ppb (2) 22.0 μg/m3 (20) 15.7 μg/m3 (58) 58.0
 
Nov. 9, 2019, 11 a.m. N/A N/A N/A 12.0 ppb (11) N/A N/A 6.0 ppb (5) 0.27 ppb (3) 13.0 μg/m3 (12) 7.8 μg/m3 (32) 32.0