AQSQID: 370670022

Site Name: Hattieaven

Location: Winston-Salem, NC

Reporting: True, Located: True

Current AQI: 41.0

Winston-Salem NC, US: 36.1106, -80.2267

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Nov. 15, 2019, 1 p.m. 12.5 ppb (12) 2.5 ppb (2) N/A 10.0 ppb (9) N/A 2.0 ppb (3) N/A N/A 15.0 μg/m3 (14) 9.9 μg/m3 (41) 41.0
 
Nov. 15, 2019, noon 8.3 ppb (8) 1.1 ppb (1) N/A 7.0 ppb (6) N/A 1.0 ppb (1) N/A N/A 15.0 μg/m3 (14) 11.3 μg/m3 (47) 47.0
 
Nov. 15, 2019, 11 a.m. 6.4 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A 15.0 μg/m3 (14) 11.3 μg/m3 (47) 47.0
 
Nov. 15, 2019, 10 a.m. 7.1 ppb (7) 0.3 ppb (0) N/A 7.0 ppb (6) N/A 1.0 ppb (1) N/A N/A 19.0 μg/m3 (17) 14.8 μg/m3 (56) 56.0
 
Nov. 15, 2019, 9 a.m. 8.5 ppb (8) 0.1 ppb (0) N/A 8.0 ppb (7) N/A 1.0 ppb (1) N/A N/A 21.0 μg/m3 (19) 15.6 μg/m3 (58) 58.0
 
Nov. 15, 2019, 8 a.m. 9.3 ppb (9) 0.1 ppb (0) N/A 9.0 ppb (8) N/A 1.0 ppb (1) N/A N/A 21.0 μg/m3 (19) 16.6 μg/m3 (60) 60.0
 
Nov. 15, 2019, 7 a.m. 12.7 ppb (12) 0.1 ppb (0) N/A 12.0 ppb (11) N/A 1.0 ppb (1) N/A N/A 22.0 μg/m3 (20) 15.7 μg/m3 (58) 58.0
 
Nov. 15, 2019, 6 a.m. 14.1 ppb (13) 0.1 ppb (0) N/A 14.0 ppb (13) N/A 1.0 ppb (1) N/A N/A 23.0 μg/m3 (21) 17.2 μg/m3 (61) 61.0
 
Nov. 15, 2019, 5 a.m. 14.7 ppb (14) 0.1 ppb (0) N/A 14.0 ppb (13) N/A 1.0 ppb (1) N/A N/A 26.0 μg/m3 (24) 19.2 μg/m3 (65) 65.0
 
Nov. 15, 2019, 4 a.m. 17.6 ppb (16) 0.4 ppb (0) N/A 17.0 ppb (16) N/A 1.0 ppb (1) N/A N/A 24.0 μg/m3 (22) 18.7 μg/m3 (64) 64.0
 
Nov. 15, 2019, 3 a.m. 16.4 ppb (15) 0.2 ppb (0) N/A 16.0 ppb (15) N/A 1.0 ppb (1) N/A N/A 23.0 μg/m3 (21) 17.4 μg/m3 (61) 61.0
 
Nov. 15, 2019, 2 a.m. 19.1 ppb (18) 0.3 ppb (0) N/A 19.0 ppb (18) N/A 1.0 ppb (1) N/A N/A 27.0 μg/m3 (25) 19.4 μg/m3 (66) 66.0
 
Nov. 15, 2019, 1 a.m. 23.8 ppb (22) 1.3 ppb (1) N/A 22.0 ppb (20) N/A 1.0 ppb (1) N/A N/A 25.0 μg/m3 (23) 17.3 μg/m3 (61) 61.0
 
Nov. 15, 2019, midnight 31.1 ppb (29) 1.9 ppb (2) N/A 29.0 ppb (27) N/A 1.0 ppb (1) N/A N/A 22.0 μg/m3 (20) 14.5 μg/m3 (55) 55.0
 
Nov. 14, 2019, 11 p.m. 33.6 ppb (31) 2.5 ppb (2) N/A 31.0 ppb (29) N/A 1.0 ppb (1) N/A N/A 20.0 μg/m3 (18) 14.0 μg/m3 (54) 54.0
 
Nov. 14, 2019, 10 p.m. 34.0 ppb (31) 2.3 ppb (2) N/A 31.0 ppb (29) N/A 1.0 ppb (1) N/A N/A 22.0 μg/m3 (20) 14.9 μg/m3 (56) 56.0
 
Nov. 14, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 24.0 μg/m3 (22) 14.7 μg/m3 (56) 56.0
 
Nov. 14, 2019, 8 p.m. 36.4 ppb (34) 8.4 ppb (8) N/A 28.0 ppb (26) N/A 1.0 ppb (1) N/A N/A 22.0 μg/m3 (20) 14.1 μg/m3 (54) 54.0
 
Nov. 14, 2019, 7 p.m. 29.0 ppb (27) 5.4 ppb (5) N/A 23.0 ppb (21) N/A 1.0 ppb (1) N/A N/A 19.0 μg/m3 (17) 12.5 μg/m3 (51) 51.0
 
Nov. 14, 2019, 6 p.m. 19.7 ppb (18) 3.8 ppb (4) N/A 16.0 ppb (15) N/A 1.0 ppb (1) N/A N/A 16.0 μg/m3 (15) 10.7 μg/m3 (45) 45.0
 
Nov. 14, 2019, 5 p.m. 16.8 ppb (16) 2.7 ppb (3) N/A 14.0 ppb (13) N/A 1.0 ppb (1) N/A N/A 14.0 μg/m3 (13) 9.8 μg/m3 (41) 41.0
 
Nov. 14, 2019, 4 p.m. 19.2 ppb (18) 4.6 ppb (4) N/A 14.0 ppb (13) N/A 1.0 ppb (1) N/A N/A 14.0 μg/m3 (13) 10.1 μg/m3 (42) 42.0
 
Nov. 14, 2019, 3 p.m. 27.9 ppb (26) 10.0 ppb (9) N/A 18.0 ppb (17) N/A 1.0 ppb (1) N/A N/A 17.0 μg/m3 (15) 12.3 μg/m3 (51) 51.0
 
Nov. 14, 2019, 2 p.m. 47.5 ppb (44) 22.7 ppb (21) N/A 25.0 ppb (23) N/A 1.0 ppb (1) N/A N/A 22.0 μg/m3 (20) 15.3 μg/m3 (57) 57.0
 
Nov. 14, 2019, 1 p.m. 55.1 ppb (51) 30.7 ppb (28) N/A 24.0 ppb (22) N/A 1.0 ppb (1) N/A N/A 22.0 μg/m3 (20) 15.9 μg/m3 (58) 58.0
 
Nov. 14, 2019, noon 28.1 ppb (26) 12.1 ppb (11) N/A 16.0 ppb (15) N/A 1.0 ppb (1) N/A N/A 25.0 μg/m3 (23) 20.3 μg/m3 (68) 68.0
 
Nov. 14, 2019, 11 a.m. 34.3 ppb (32) 15.1 ppb (14) N/A 19.0 ppb (18) N/A 1.0 ppb (1) N/A N/A 19.0 μg/m3 (17) 14.9 μg/m3 (56) 56.0
 
Nov. 14, 2019, 10 a.m. 25.0 ppb (23) 6.4 ppb (6) N/A 18.0 ppb (17) N/A 1.0 ppb (1) N/A N/A 19.0 μg/m3 (17) 14.8 μg/m3 (56) 56.0
 
Nov. 14, 2019, 9 a.m. 21.5 ppb (20) 2.2 ppb (2) N/A 19.0 ppb (18) N/A 1.0 ppb (1) N/A N/A 19.0 μg/m3 (17) 15.3 μg/m3 (57) 57.0
 
Nov. 14, 2019, 8 a.m. 21.8 ppb (20) 3.6 ppb (3) N/A 18.0 ppb (17) N/A 1.0 ppb (1) N/A N/A 20.0 μg/m3 (18) 16.7 μg/m3 (60) 60.0
 
Nov. 14, 2019, 7 a.m. 23.9 ppb (22) 4.4 ppb (4) N/A 19.0 ppb (18) N/A 1.0 ppb (1) N/A N/A 18.0 μg/m3 (16) 15.0 μg/m3 (56) 56.0
 
Nov. 14, 2019, 6 a.m. 24.1 ppb (22) 4.0 ppb (4) N/A 20.0 ppb (19) N/A 1.0 ppb (1) N/A N/A 17.0 μg/m3 (15) 14.3 μg/m3 (55) 55.0
 
Nov. 14, 2019, 5 a.m. 21.0 ppb (19) 1.6 ppb (1) N/A 19.0 ppb (18) N/A 1.0 ppb (1) N/A N/A 18.0 μg/m3 (16) 13.7 μg/m3 (54) 54.0
 
Nov. 14, 2019, 4 a.m. 20.6 ppb (19) 1.8 ppb (2) N/A 19.0 ppb (18) N/A 1.0 ppb (1) N/A N/A 17.0 μg/m3 (15) 13.0 μg/m3 (52) 52.0
 
Nov. 14, 2019, 3 a.m. 25.4 ppb (24) 3.9 ppb (4) N/A 21.0 ppb (19) N/A 1.0 ppb (1) N/A N/A 19.0 μg/m3 (17) 14.1 μg/m3 (54) 54.0
 
Nov. 14, 2019, 2 a.m. 26.5 ppb (25) 5.6 ppb (5) N/A 21.0 ppb (19) N/A 1.0 ppb (1) N/A N/A 17.0 μg/m3 (15) 13.6 μg/m3 (53) 53.0
 
Nov. 14, 2019, 1 a.m. 36.3 ppb (34) 11.3 ppb (10) N/A 25.0 ppb (23) N/A 1.0 ppb (1) N/A N/A 16.0 μg/m3 (15) 11.7 μg/m3 (49) 49.0
 
Nov. 14, 2019, midnight 20.7 ppb (19) 1.6 ppb (1) N/A 19.0 ppb (18) N/A 1.0 ppb (1) N/A N/A 10.0 μg/m3 (9) 6.9 μg/m3 (29) 29.0
 
Nov. 13, 2019, 11 p.m. 9.3 ppb (9) -0.1 ppb (0) N/A 9.0 ppb (8) N/A 1.0 ppb (1) N/A N/A 8.0 μg/m3 (7) 5.7 μg/m3 (24) 24.0
 
Nov. 13, 2019, 10 p.m. 6.4 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A 8.0 μg/m3 (7) 5.0 μg/m3 (21) 21.0
 
Nov. 13, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 7.0 μg/m3 (6) 4.4 μg/m3 (18) 18.0
 
Nov. 13, 2019, 8 p.m. 3.1 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A 7.0 μg/m3 (6) 4.0 μg/m3 (17) 17.0
 
Nov. 13, 2019, 7 p.m. 2.0 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A 6.0 μg/m3 (5) 3.7 μg/m3 (15) 15.0
 
Nov. 13, 2019, 6 p.m. 1.8 ppb (2) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 6.0 μg/m3 (5) 3.5 μg/m3 (15) 15.0
 
Nov. 13, 2019, 5 p.m. 1.7 ppb (2) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 4.0 μg/m3 (4) 3.3 μg/m3 (14) 14.0
 
Nov. 13, 2019, 4 p.m. 2.8 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A 5.0 μg/m3 (5) 3.3 μg/m3 (14) 14.0
 
Nov. 13, 2019, 3 p.m. 3.9 ppb (4) 1.4 ppb (1) N/A 3.0 ppb (3) N/A 2.0 ppb (3) N/A N/A 5.0 μg/m3 (5) 3.2 μg/m3 (13) 13.0
 
Nov. 13, 2019, 2 p.m. 2.6 ppb (2) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A 5.0 μg/m3 (5) 3.3 μg/m3 (14) 14.0
 
Nov. 13, 2019, 1 p.m. 2.7 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A 6.0 μg/m3 (5) 3.6 μg/m3 (15) 15.0
 
Nov. 13, 2019, noon 6.2 ppb (6) 0.9 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A 7.0 μg/m3 (6) 4.3 μg/m3 (18) 18.0
 
Nov. 13, 2019, 11 a.m. 4.9 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A 7.0 μg/m3 (6) 5.0 μg/m3 (21) 21.0
 
Nov. 13, 2019, 10 a.m. 3.1 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A 8.0 μg/m3 (7) 5.8 μg/m3 (24) 24.0
 
Nov. 13, 2019, 9 a.m. 3.4 ppb (3) -0.1 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A 8.0 μg/m3 (7) 6.2 μg/m3 (26) 26.0
 
Nov. 13, 2019, 8 a.m. 4.3 ppb (4) -0.1 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A 7.0 μg/m3 (6) 5.2 μg/m3 (22) 22.0
 
Nov. 13, 2019, 7 a.m. 3.2 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A 7.0 μg/m3 (6) 5.0 μg/m3 (21) 21.0
 
Nov. 13, 2019, 6 a.m. 2.1 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A 7.0 μg/m3 (6) 4.6 μg/m3 (19) 19.0
 
Nov. 13, 2019, 5 a.m. 1.8 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A 6.0 μg/m3 (5) 4.2 μg/m3 (18) 18.0
 
Nov. 13, 2019, 4 a.m. 1.4 ppb (1) -0.1 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A 6.0 μg/m3 (5) 4.2 μg/m3 (18) 18.0
 
Nov. 13, 2019, 3 a.m. 2.4 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A 7.0 μg/m3 (6) 4.2 μg/m3 (18) 18.0
 
Nov. 13, 2019, 2 a.m. 2.1 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A 6.0 μg/m3 (5) 3.8 μg/m3 (16) 16.0
 
Nov. 13, 2019, 1 a.m. 2.5 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A 5.0 μg/m3 (5) 3.3 μg/m3 (14) 14.0
 
Nov. 13, 2019, midnight 3.0 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A 5.0 μg/m3 (5) 3.0 μg/m3 (12) 12.0
 
Nov. 12, 2019, 11 p.m. 4.1 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A 6.0 μg/m3 (5) 3.0 μg/m3 (12) 12.0
 
Nov. 12, 2019, 10 p.m. 3.4 ppb (3) -0.5 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A 8.0 μg/m3 (7) 3.2 μg/m3 (13) 13.0
 
Nov. 12, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 7.0 μg/m3 (6) 3.4 μg/m3 (14) 14.0
 
Nov. 12, 2019, 8 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 7.0 μg/m3 (6) 3.2 μg/m3 (13) 13.0
 
Nov. 12, 2019, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 7.0 μg/m3 (6) 3.2 μg/m3 (13) 13.0
 
Nov. 12, 2019, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 7.0 μg/m3 (6) 3.2 μg/m3 (13) 13.0
 
Nov. 12, 2019, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 5.0 μg/m3 (5) 2.8 μg/m3 (12) 12.0
 
Nov. 12, 2019, 4 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 5.0 μg/m3 (5) 2.1 μg/m3 (9) 9.0
 
Nov. 12, 2019, 3 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 4.0 μg/m3 (4) 1.6 μg/m3 (7) 7.0
 
Nov. 12, 2019, 2 p.m. 5.4 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A 4.0 μg/m3 (4) 1.2 μg/m3 (5) 5.0
 
Nov. 12, 2019, 1 p.m. 6.1 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A 3.0 μg/m3 (3) 1.0 μg/m3 (4) 6.0
 
Nov. 12, 2019, noon 8.0 ppb (7) 0.2 ppb (0) N/A 8.0 ppb (7) N/A 1.0 ppb (1) N/A N/A 11.0 μg/m3 (10) 7.5 μg/m3 (31) 31.0
 
Nov. 12, 2019, 11 a.m. 10.9 ppb (10) 0.1 ppb (0) N/A 11.0 ppb (10) N/A 1.0 ppb (1) N/A N/A 18.0 μg/m3 (16) 13.3 μg/m3 (53) 53.0
 
Nov. 12, 2019, 10 a.m. 6.8 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 1.0 ppb (1) N/A N/A 16.0 μg/m3 (15) 12.6 μg/m3 (51) 51.0
 
Nov. 12, 2019, 9 a.m. 5.7 ppb (5) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A 16.0 μg/m3 (15) 12.2 μg/m3 (50) 50.0
 
Nov. 12, 2019, 8 a.m. 4.5 ppb (4) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A 16.0 μg/m3 (15) 12.2 μg/m3 (50) 50.0
 
Nov. 12, 2019, 7 a.m. 4.0 ppb (4) -0.1 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A 17.0 μg/m3 (15) 11.9 μg/m3 (50) 50.0
 
Nov. 12, 2019, 6 a.m. 4.2 ppb (4) -0.1 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A 17.0 μg/m3 (15) 11.9 μg/m3 (50) 50.0
 
Nov. 12, 2019, 5 a.m. 4.9 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A 17.0 μg/m3 (15) 12.1 μg/m3 (50) 50.0
 
Nov. 12, 2019, 4 a.m. 5.7 ppb (5) -0.1 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A 18.0 μg/m3 (16) 12.5 μg/m3 (51) 51.0
 
Nov. 12, 2019, 3 a.m. 6.1 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A 19.0 μg/m3 (17) 12.5 μg/m3 (51) 51.0
 
Nov. 12, 2019, 2 a.m. 6.3 ppb (6) -0.1 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A 17.0 μg/m3 (15) 11.5 μg/m3 (48) 48.0
 
Nov. 12, 2019, 1 a.m. 9.2 ppb (9) -0.1 ppb (0) N/A 9.0 ppb (8) N/A 1.0 ppb (1) N/A N/A 18.0 μg/m3 (16) 11.5 μg/m3 (48) 48.0
 
Nov. 12, 2019, midnight 11.5 ppb (11) 0.3 ppb (0) N/A 11.0 ppb (10) N/A 1.0 ppb (1) N/A N/A 16.0 μg/m3 (15) 9.9 μg/m3 (41) 41.0
 
Nov. 11, 2019, 11 p.m. 12.2 ppb (11) 0.0 ppb (0) N/A 12.0 ppb (11) N/A 1.0 ppb (1) N/A N/A 16.0 μg/m3 (15) 9.2 μg/m3 (38) 38.0
 
Nov. 11, 2019, 10 p.m. 10.9 ppb (10) -0.3 ppb (0) N/A 11.0 ppb (10) N/A 1.0 ppb (1) N/A N/A 16.0 μg/m3 (15) 8.2 μg/m3 (34) 34.0
 
Nov. 11, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 19.0 μg/m3 (17) 8.0 μg/m3 (33) 33.0
 
Nov. 11, 2019, 8 p.m. 4.0 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A 13.0 μg/m3 (12) 7.8 μg/m3 (32) 32.0
 
Nov. 11, 2019, 7 p.m. 3.3 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A 14.0 μg/m3 (13) 8.2 μg/m3 (34) 34.0
 
Nov. 11, 2019, 6 p.m. 3.7 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A 15.0 μg/m3 (14) 8.8 μg/m3 (37) 37.0
 
Nov. 11, 2019, 5 p.m. 4.4 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A 16.0 μg/m3 (15) 11.2 μg/m3 (47) 47.0
 
Nov. 11, 2019, 4 p.m. 12.9 ppb (12) 3.5 ppb (3) N/A 9.0 ppb (8) N/A 4.0 ppb (6) N/A N/A 20.0 μg/m3 (18) 13.6 μg/m3 (53) 53.0
 
Nov. 11, 2019, 3 p.m. 12.8 ppb (12) 3.6 ppb (3) N/A 9.0 ppb (8) N/A 1.0 ppb (1) N/A N/A 22.0 μg/m3 (20) 16.1 μg/m3 (59) 59.0
 
Nov. 11, 2019, 2 p.m. 19.9 ppb (18) 6.5 ppb (6) N/A 13.0 ppb (12) N/A 1.0 ppb (1) N/A N/A 22.0 μg/m3 (20) 16.9 μg/m3 (60) 60.0
 
Nov. 11, 2019, 1 p.m. 15.8 ppb (15) 3.9 ppb (4) N/A 12.0 ppb (11) N/A 1.0 ppb (1) N/A N/A 23.0 μg/m3 (21) 17.4 μg/m3 (61) 61.0
 
Nov. 11, 2019, noon 27.9 ppb (26) 10.1 ppb (9) N/A 18.0 ppb (17) N/A 1.0 ppb (1) N/A N/A 23.0 μg/m3 (21) 18.0 μg/m3 (63) 63.0
 
Nov. 11, 2019, 11 a.m. 25.4 ppb (24) 5.5 ppb (5) N/A 20.0 ppb (19) N/A 1.0 ppb (1) N/A N/A 23.0 μg/m3 (21) 18.3 μg/m3 (63) 63.0
 
Nov. 11, 2019, 10 a.m. 11.8 ppb (11) 0.2 ppb (0) N/A 11.0 ppb (10) N/A 1.0 ppb (1) N/A N/A 21.0 μg/m3 (19) 17.7 μg/m3 (62) 62.0
 
Nov. 11, 2019, 9 a.m. 13.6 ppb (13) 0.3 ppb (0) N/A 13.0 ppb (12) N/A 1.0 ppb (1) N/A N/A 21.0 μg/m3 (19) 17.4 μg/m3 (61) 61.0
 
Nov. 11, 2019, 8 a.m. 13.0 ppb (12) 0.0 ppb (0) N/A 13.0 ppb (12) N/A 1.0 ppb (1) N/A N/A 21.0 μg/m3 (19) 16.9 μg/m3 (60) 60.0
 
Nov. 11, 2019, 7 a.m. 11.6 ppb (11) 0.0 ppb (0) N/A 11.0 ppb (10) N/A 1.0 ppb (1) N/A N/A 20.0 μg/m3 (18) 16.3 μg/m3 (59) 59.0
 
Nov. 11, 2019, 6 a.m. 11.5 ppb (11) 0.0 ppb (0) N/A 11.0 ppb (10) N/A 1.0 ppb (1) N/A N/A 20.0 μg/m3 (18) 16.5 μg/m3 (60) 60.0
 
Nov. 11, 2019, 5 a.m. 9.7 ppb (9) 0.0 ppb (0) N/A 10.0 ppb (9) N/A 1.0 ppb (1) N/A N/A 19.0 μg/m3 (17) 15.1 μg/m3 (57) 57.0
 
Nov. 11, 2019, 4 a.m. 10.2 ppb (9) 0.0 ppb (0) N/A 10.0 ppb (9) N/A 1.0 ppb (1) N/A N/A 18.0 μg/m3 (16) 14.2 μg/m3 (55) 55.0
 
Nov. 11, 2019, 3 a.m. 7.6 ppb (7) 0.0 ppb (0) N/A 8.0 ppb (7) N/A 1.0 ppb (1) N/A N/A 19.0 μg/m3 (17) 13.9 μg/m3 (54) 54.0
 
Nov. 11, 2019, 2 a.m. 10.0 ppb (9) 0.0 ppb (0) N/A 10.0 ppb (9) N/A 1.0 ppb (1) N/A N/A 19.0 μg/m3 (17) 13.6 μg/m3 (53) 53.0
 
Nov. 11, 2019, 1 a.m. 10.4 ppb (10) 0.0 ppb (0) N/A 10.0 ppb (9) N/A 1.0 ppb (1) N/A N/A 19.0 μg/m3 (17) 13.7 μg/m3 (54) 54.0
 
Nov. 11, 2019, midnight 14.4 ppb (13) -0.1 ppb (0) N/A 14.0 ppb (13) N/A 1.0 ppb (1) N/A N/A 19.0 μg/m3 (17) 12.5 μg/m3 (51) 51.0
 
Nov. 10, 2019, 11 p.m. 16.3 ppb (15) -0.1 ppb (0) N/A 16.0 ppb (15) N/A 1.0 ppb (1) N/A N/A 16.0 μg/m3 (15) 11.0 μg/m3 (46) 46.0
 
Nov. 10, 2019, 10 p.m. 8.1 ppb (8) -0.1 ppb (0) N/A 8.0 ppb (7) N/A 1.0 ppb (1) N/A N/A 14.0 μg/m3 (13) 9.8 μg/m3 (41) 41.0
 
Nov. 10, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 14.0 μg/m3 (13) 8.6 μg/m3 (36) 36.0
 
Nov. 10, 2019, 8 p.m. 2.9 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A 12.0 μg/m3 (11) 8.0 μg/m3 (33) 33.0
 
Nov. 10, 2019, 7 p.m. 3.8 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A 13.0 μg/m3 (12) 9.1 μg/m3 (38) 38.0
 
Nov. 10, 2019, 6 p.m. 4.2 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A 14.0 μg/m3 (13) 10.0 μg/m3 (42) 42.0
 
Nov. 10, 2019, 5 p.m. 3.3 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A 17.0 μg/m3 (15) 13.2 μg/m3 (53) 53.0
 
Nov. 10, 2019, 4 p.m. 4.3 ppb (4) 0.7 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A 20.0 μg/m3 (18) 15.3 μg/m3 (57) 57.0
 
Nov. 10, 2019, 3 p.m. 4.9 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A 20.0 μg/m3 (18) 15.9 μg/m3 (58) 58.0
 
Nov. 10, 2019, 2 p.m. 6.7 ppb (6) 1.4 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A 24.0 μg/m3 (22) 19.1 μg/m3 (65) 65.0
 
Nov. 10, 2019, 1 p.m. 9.2 ppb (9) 2.2 ppb (2) N/A 7.0 ppb (6) N/A 1.0 ppb (1) N/A N/A 29.0 μg/m3 (26) 25.3 μg/m3 (78) 78.0
 
Nov. 10, 2019, noon 23.9 ppb (22) 10.0 ppb (9) N/A 14.0 ppb (13) N/A 1.0 ppb (1) N/A N/A 33.0 μg/m3 (30) 28.9 μg/m3 (86) 86.0
 
Nov. 10, 2019, 11 a.m. 24.5 ppb (23) 8.2 ppb (8) N/A 16.0 ppb (15) N/A 1.0 ppb (1) N/A N/A 33.0 μg/m3 (30) 29.6 μg/m3 (87) 87.0
 
Nov. 10, 2019, 10 a.m. 19.2 ppb (18) 4.0 ppb (4) N/A 15.0 ppb (14) N/A 1.0 ppb (1) N/A N/A 28.0 μg/m3 (25) 24.9 μg/m3 (77) 77.0
 
Nov. 10, 2019, 9 a.m. 20.1 ppb (19) 3.3 ppb (3) N/A 17.0 ppb (16) N/A 1.0 ppb (1) N/A N/A 29.0 μg/m3 (26) 25.7 μg/m3 (79) 79.0
 
Nov. 10, 2019, 8 a.m. 25.3 ppb (23) 8.1 ppb (8) N/A 17.0 ppb (16) N/A 1.0 ppb (1) N/A N/A 34.0 μg/m3 (31) 30.1 μg/m3 (89) 89.0
 
Nov. 10, 2019, 7 a.m. 29.0 ppb (27) 11.7 ppb (11) N/A 17.0 ppb (16) N/A 1.0 ppb (1) N/A N/A 31.0 μg/m3 (28) 27.2 μg/m3 (82) 82.0
 
Nov. 10, 2019, 6 a.m. 31.8 ppb (29) 12.0 ppb (11) N/A 19.0 ppb (18) N/A 1.0 ppb (1) N/A N/A 28.0 μg/m3 (25) 23.6 μg/m3 (75) 75.0
 
Nov. 10, 2019, 5 a.m. 39.5 ppb (37) 18.4 ppb (17) N/A 21.0 ppb (19) N/A 1.0 ppb (1) N/A N/A 25.0 μg/m3 (23) 21.4 μg/m3 (70) 70.0
 
Nov. 10, 2019, 4 a.m. 43.9 ppb (41) 22.0 ppb (20) N/A 22.0 ppb (20) N/A 1.0 ppb (1) N/A N/A 23.0 μg/m3 (21) 18.6 μg/m3 (64) 64.0
 
Nov. 10, 2019, 3 a.m. 48.1 ppb (45) 24.9 ppb (23) N/A 23.0 ppb (21) N/A 1.0 ppb (1) N/A N/A 23.0 μg/m3 (21) 18.2 μg/m3 (63) 63.0
 
Nov. 10, 2019, 2 a.m. 36.3 ppb (34) 10.3 ppb (10) N/A 26.0 ppb (24) N/A 1.0 ppb (1) N/A N/A 22.0 μg/m3 (20) 16.1 μg/m3 (59) 59.0
 
Nov. 10, 2019, 1 a.m. 36.3 ppb (34) 9.3 ppb (9) N/A 27.0 ppb (25) N/A 1.0 ppb (1) N/A N/A 20.0 μg/m3 (18) 15.2 μg/m3 (57) 57.0
 
Nov. 10, 2019, midnight 29.1 ppb (27) 2.1 ppb (2) N/A 27.0 ppb (25) N/A 1.0 ppb (1) N/A N/A 16.0 μg/m3 (15) 12.7 μg/m3 (51) 51.0
 
Nov. 9, 2019, 11 p.m. 14.0 ppb (13) 0.0 ppb (0) N/A 14.0 ppb (13) N/A 1.0 ppb (1) N/A N/A 15.0 μg/m3 (14) 10.8 μg/m3 (45) 45.0
 
Nov. 9, 2019, 10 p.m. 5.4 ppb (5) -0.5 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A 12.0 μg/m3 (11) 8.7 μg/m3 (36) 36.0
 
Nov. 9, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 12.0 μg/m3 (11) 8.3 μg/m3 (35) 35.0
 
Nov. 9, 2019, 8 p.m. 3.2 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A 12.0 μg/m3 (11) 8.2 μg/m3 (34) 34.0
 
Nov. 9, 2019, 7 p.m. 4.5 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A 11.0 μg/m3 (10) 7.9 μg/m3 (33) 33.0
 
Nov. 9, 2019, 6 p.m. 4.7 ppb (4) 1.1 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A 11.0 μg/m3 (10) 7.4 μg/m3 (31) 31.0
 
Nov. 9, 2019, 5 p.m. 3.7 ppb (3) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) N/A N/A 10.0 μg/m3 (9) 6.4 μg/m3 (27) 27.0
 
Nov. 9, 2019, 4 p.m. 2.8 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A 9.0 μg/m3 (8) 5.2 μg/m3 (22) 22.0
 
Nov. 9, 2019, 3 p.m. 2.9 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A 8.0 μg/m3 (7) 4.6 μg/m3 (19) 19.0
 
Nov. 9, 2019, 2 p.m. 3.1 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A 8.0 μg/m3 (7) 5.0 μg/m3 (21) 21.0
 
Nov. 9, 2019, 1 p.m. 4.8 ppb (4) 1.2 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A 12.0 μg/m3 (11) 8.8 μg/m3 (37) 37.0
 
Nov. 9, 2019, noon 6.4 ppb (6) 0.7 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A 14.0 μg/m3 (13) 10.1 μg/m3 (42) 42.0
 
Nov. 9, 2019, 11 a.m. 3.8 ppb (4) -0.1 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A 11.0 μg/m3 (10) 7.6 μg/m3 (32) 32.0
 
Nov. 9, 2019, 10 a.m. 4.1 ppb (4) -0.1 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A 10.0 μg/m3 (9) 7.5 μg/m3 (31) 31.0
 
Nov. 9, 2019, 9 a.m. 4.2 ppb (4) -0.1 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A 10.0 μg/m3 (9) 7.4 μg/m3 (31) 31.0
 
Nov. 9, 2019, 8 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A 11.0 μg/m3 (10) 7.6 μg/m3 (32) 32.0
 
Nov. 9, 2019, 7 a.m. 4.1 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A 11.0 μg/m3 (10) 7.2 μg/m3 (30) 30.0
 
Nov. 9, 2019, 6 a.m. 4.7 ppb (4) 0.1 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A 11.0 μg/m3 (10) 7.6 μg/m3 (32) 32.0
 
Nov. 9, 2019, 5 a.m. 5.3 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A 10.0 μg/m3 (9) 7.0 μg/m3 (29) 29.0
 
Nov. 9, 2019, 4 a.m. 6.6 ppb (6) 0.2 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A 9.0 μg/m3 (8) 6.5 μg/m3 (27) 27.0
 
Nov. 9, 2019, 3 a.m. 4.4 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A 10.0 μg/m3 (9) 6.8 μg/m3 (28) 28.0
 
Nov. 9, 2019, 2 a.m. 4.1 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A 10.0 μg/m3 (9) 6.6 μg/m3 (28) 28.0
 
Nov. 9, 2019, 1 a.m. 4.9 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) N/A N/A 10.0 μg/m3 (9) 6.7 μg/m3 (28) 28.0
 
Nov. 9, 2019, midnight 5.4 ppb (5) -0.1 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A 9.0 μg/m3 (8) 6.2 μg/m3 (26) 26.0
 
Nov. 8, 2019, 11 p.m. 5.8 ppb (5) -0.2 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A N/A 10.0 μg/m3 (9) 6.7 μg/m3 (28) 28.0
 
Nov. 8, 2019, 10 p.m. -5.0 ppb (0) -7.8 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A N/A 10.0 μg/m3 (9) 5.2 μg/m3 (22) 22.0
 
Nov. 8, 2019, 9 p.m. N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 9.0 μg/m3 (8) 4.9 μg/m3 (20) 20.0
 
Nov. 8, 2019, 8 p.m. 1.3 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 9.0 μg/m3 (8) 5.0 μg/m3 (21) 21.0
 
Nov. 8, 2019, 7 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 9.0 μg/m3 (8) 5.0 μg/m3 (21) 21.0
 
Nov. 8, 2019, 6 p.m. 1.1 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 9.0 μg/m3 (8) 5.2 μg/m3 (22) 22.0
 
Nov. 8, 2019, 5 p.m. 2.1 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A N/A 9.0 μg/m3 (8) 5.3 μg/m3 (22) 22.0
 
Nov. 8, 2019, 4 p.m. 1.3 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A N/A 10.0 μg/m3 (9) 5.4 μg/m3 (23) 23.0
 
Nov. 8, 2019, 3 p.m. 1.4 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A N/A 7.0 μg/m3 (6) 4.2 μg/m3 (18) 18.0
 
Nov. 8, 2019, 2 p.m. 2.2 ppb (2) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A 4.0 μg/m3 (4) 2.4 μg/m3 (10) 10.0