AQSQID: 490353006

Site Name: Hawthorne

Location: Salt Lake City, UT

Reporting: True, Located: True

Current AQI: 24.0

Salt Lake City UT, US: 40.733501, -111.871696

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 23, 2019, 5 a.m. 11.0 ppb (10) 1.0 ppb (1) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 31.0 ppb (24) 0.0 ppb (0) N/A 3.3 μg/m3 (14) 24.0
 
Sept. 23, 2019, 4 a.m. 14.0 ppb (13) 1.0 ppb (1) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 28.0 ppb (22) 0.1 ppb (1) N/A 3.8 μg/m3 (16) 22.0
 
Sept. 23, 2019, 3 a.m. 8.0 ppb (7) 1.0 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 36.0 ppb (28) 0.0 ppb (0) N/A 3.9 μg/m3 (16) 28.0
 
Sept. 23, 2019, 2 a.m. 5.0 ppb (5) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 38.0 ppb (29) 0.0 ppb (0) N/A 3.7 μg/m3 (15) 29.0
 
Sept. 23, 2019, 1 a.m. 12.0 ppb (11) 1.0 ppb (1) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 32.0 ppb (25) 0.1 ppb (1) N/A 3.1 μg/m3 (13) 25.0
 
Sept. 23, 2019, midnight 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 43.0 ppb (33) 0.0 ppb (0) N/A 1.7 μg/m3 (7) 33.0
 
Sept. 22, 2019, 11 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 47.0 ppb (36) 0.0 ppb (0) N/A 1.5 μg/m3 (6) 36.0
 
Sept. 22, 2019, 10 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 46.0 ppb (35) 0.0 ppb (0) N/A 1.5 μg/m3 (6) 35.0
 
Sept. 22, 2019, 9 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 45.0 ppb (35) 0.0 ppb (0) N/A 1.5 μg/m3 (6) 35.0
 
Sept. 22, 2019, 8 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 44.0 ppb (34) 0.0 ppb (0) N/A 1.5 μg/m3 (6) 34.0
 
Sept. 22, 2019, 7 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 44.0 ppb (34) 0.0 ppb (0) N/A 1.5 μg/m3 (6) 34.0
 
Sept. 22, 2019, 6 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 42.0 ppb (32) 0.0 ppb (0) N/A 1.6 μg/m3 (7) 32.0
 
Sept. 22, 2019, 5 p.m. 7.0 ppb (6) 3.0 ppb (3) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 35.0 ppb (27) 0.0 ppb (0) N/A 1.7 μg/m3 (7) 27.0
 
Sept. 22, 2019, 4 p.m. 7.0 ppb (6) 3.0 ppb (3) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 32.0 ppb (25) 0.0 ppb (0) N/A 1.8 μg/m3 (8) 25.0
 
Sept. 22, 2019, 3 p.m. 12.0 ppb (11) 5.0 ppb (5) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 24.0 ppb (18) 0.0 ppb (0) N/A 2.2 μg/m3 (9) 18.0
 
Sept. 22, 2019, 2 p.m. 18.0 ppb (17) 7.0 ppb (6) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 16.0 ppb (12) 0.1 ppb (1) N/A 3.1 μg/m3 (13) 17.0
 
Sept. 22, 2019, 1 p.m. 24.0 ppb (22) 7.0 ppb (6) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 7.0 ppb (5) 0.1 ppb (1) N/A 3.7 μg/m3 (15) 22.0
 
Sept. 22, 2019, noon 19.0 ppb (18) 3.0 ppb (3) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 8.0 ppb (6) 0.1 ppb (1) N/A 3.5 μg/m3 (15) 18.0
 
Sept. 22, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 13.0 ppb (10) 0.0 ppb (0) N/A 3.2 μg/m3 (13) 13.0
 
Sept. 22, 2019, 10 a.m. 12.0 ppb (11) 2.0 ppb (2) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 14.0 ppb (11) 0.0 ppb (0) N/A 3.8 μg/m3 (16) 16.0
 
Sept. 22, 2019, 9 a.m. 11.0 ppb (10) 1.0 ppb (1) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 14.0 ppb (11) 0.0 ppb (0) N/A 3.2 μg/m3 (13) 13.0
 
Sept. 22, 2019, 8 a.m. 13.0 ppb (12) 1.0 ppb (1) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 13.0 ppb (10) 0.0 ppb (0) N/A 3.0 μg/m3 (12) 12.0
 
Sept. 22, 2019, 7 a.m. 19.0 ppb (18) 3.0 ppb (3) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 10.0 ppb (8) 0.2 ppb (2) N/A 3.5 μg/m3 (15) 18.0
 
Sept. 22, 2019, 6 a.m. 14.0 ppb (13) 2.0 ppb (2) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 15.0 ppb (12) 0.1 ppb (1) N/A 3.5 μg/m3 (15) 15.0
 
Sept. 22, 2019, 5 a.m. 7.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 25.0 ppb (19) 0.0 ppb (0) N/A 3.4 μg/m3 (14) 19.0
 
Sept. 22, 2019, 4 a.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 26.0 ppb (20) 0.0 ppb (0) N/A 3.6 μg/m3 (15) 20.0
 
Sept. 22, 2019, 3 a.m. 6.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 26.0 ppb (20) 0.0 ppb (0) N/A 3.6 μg/m3 (15) 20.0
 
Sept. 22, 2019, 2 a.m. 10.0 ppb (9) 1.0 ppb (1) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 24.0 ppb (18) 0.0 ppb (0) N/A 4.2 μg/m3 (18) 18.0
 
Sept. 22, 2019, 1 a.m. 9.0 ppb (8) 1.0 ppb (1) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 27.0 ppb (21) 0.0 ppb (0) N/A 3.9 μg/m3 (16) 21.0
 
Sept. 22, 2019, midnight 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (30) 0.0 ppb (0) N/A 2.3 μg/m3 (10) 30.0
 
Sept. 21, 2019, 11 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (32) 0.0 ppb (0) N/A 1.9 μg/m3 (8) 32.0
 
Sept. 21, 2019, 10 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 42.0 ppb (32) 0.0 ppb (0) N/A 1.8 μg/m3 (8) 32.0
 
Sept. 21, 2019, 9 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 41.0 ppb (32) 0.0 ppb (0) N/A 1.7 μg/m3 (7) 32.0
 
Sept. 21, 2019, 8 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (32) 0.0 ppb (0) N/A 1.7 μg/m3 (7) 32.0
 
Sept. 21, 2019, 7 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 41.0 ppb (32) 0.0 ppb (0) N/A 2.0 μg/m3 (8) 32.0
 
Sept. 21, 2019, 6 p.m. 5.0 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 38.0 ppb (29) 0.0 ppb (0) N/A 2.0 μg/m3 (8) 29.0
 
Sept. 21, 2019, 5 p.m. 6.0 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 35.0 ppb (27) 0.0 ppb (0) N/A 2.2 μg/m3 (9) 27.0
 
Sept. 21, 2019, 4 p.m. 9.0 ppb (8) 4.0 ppb (4) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 29.0 ppb (22) 0.0 ppb (0) N/A 2.6 μg/m3 (11) 22.0
 
Sept. 21, 2019, 3 p.m. 13.0 ppb (12) 6.0 ppb (6) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 19.0 ppb (15) 0.0 ppb (0) N/A 3.3 μg/m3 (14) 15.0
 
Sept. 21, 2019, 2 p.m. 24.0 ppb (22) 13.0 ppb (12) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 9.0 ppb (7) 0.1 ppb (1) N/A 5.0 μg/m3 (21) 22.0
 
Sept. 21, 2019, 1 p.m. 28.0 ppb (26) 12.0 ppb (11) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 2.0 ppb (2) 0.2 ppb (2) N/A 5.6 μg/m3 (23) 26.0
 
Sept. 21, 2019, noon 19.0 ppb (18) 5.0 ppb (5) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 3.0 ppb (2) 0.1 ppb (1) N/A 5.4 μg/m3 (23) 23.0
 
Sept. 21, 2019, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 5.0 ppb (4) 0.0 ppb (0) N/A 5.4 μg/m3 (23) 23.0
 
Sept. 21, 2019, 10 a.m. 11.0 ppb (10) 1.0 ppb (1) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 7.0 ppb (5) 0.0 ppb (0) N/A 5.2 μg/m3 (22) 22.0
 
Sept. 21, 2019, 9 a.m. 12.0 ppb (11) 1.0 ppb (1) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 9.0 ppb (7) 0.0 ppb (0) N/A 5.2 μg/m3 (22) 22.0
 
Sept. 21, 2019, 8 a.m. 19.0 ppb (18) 4.0 ppb (4) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 4.0 ppb (3) 0.1 ppb (1) N/A 5.6 μg/m3 (23) 23.0
 
Sept. 21, 2019, 7 a.m. 11.0 ppb (10) 2.0 ppb (2) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 15.0 ppb (12) 0.0 ppb (0) N/A 4.6 μg/m3 (19) 19.0
 
Sept. 21, 2019, 6 a.m. 19.0 ppb (18) 3.0 ppb (3) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 8.0 ppb (6) 0.1 ppb (1) N/A 4.1 μg/m3 (17) 18.0
 
Sept. 21, 2019, 5 a.m. 10.0 ppb (9) 2.0 ppb (2) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 16.0 ppb (12) 0.0 ppb (0) N/A 4.2 μg/m3 (18) 18.0
 
Sept. 21, 2019, 4 a.m. 9.0 ppb (8) 1.0 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 20.0 ppb (15) 0.0 ppb (0) N/A 3.6 μg/m3 (15) 15.0
 
Sept. 21, 2019, 3 a.m. 8.0 ppb (7) 1.0 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 19.0 ppb (15) 0.0 ppb (0) N/A 3.6 μg/m3 (15) 15.0
 
Sept. 21, 2019, 2 a.m. 27.0 ppb (25) 7.0 ppb (6) N/A 21.0 ppb (19) N/A 1.0 ppb (1) 8.0 ppb (6) 0.2 ppb (2) N/A 4.3 μg/m3 (18) 25.0
 
Sept. 21, 2019, 1 a.m. 14.0 ppb (13) 1.0 ppb (1) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 26.0 ppb (20) 0.1 ppb (1) N/A 3.0 μg/m3 (12) 20.0
 
Sept. 21, 2019, midnight 14.0 ppb (13) 3.0 ppb (3) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 33.0 ppb (25) 0.1 ppb (1) N/A 2.5 μg/m3 (10) 25.0
 
Sept. 20, 2019, 11 p.m. 7.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 41.0 ppb (32) 0.0 ppb (0) N/A 1.9 μg/m3 (8) 32.0
 
Sept. 20, 2019, 10 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 44.0 ppb (34) 0.0 ppb (0) N/A 1.6 μg/m3 (7) 34.0
 
Sept. 20, 2019, 9 p.m. 7.0 ppb (6) 3.0 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 42.0 ppb (32) 0.0 ppb (0) N/A 2.7 μg/m3 (11) 32.0
 
Sept. 20, 2019, 8 p.m. 11.0 ppb (10) 3.0 ppb (3) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 34.0 ppb (26) 0.0 ppb (0) N/A 3.2 μg/m3 (13) 26.0
 
Sept. 20, 2019, 7 p.m. 8.0 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 38.0 ppb (29) 0.0 ppb (0) N/A 2.0 μg/m3 (8) 29.0
 
Sept. 20, 2019, 6 p.m. 10.0 ppb (9) 3.0 ppb (3) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 38.0 ppb (29) 0.0 ppb (0) N/A 2.6 μg/m3 (11) 29.0
 
Sept. 20, 2019, 5 p.m. 7.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 40.0 ppb (31) 0.0 ppb (0) N/A 2.4 μg/m3 (10) 31.0
 
Sept. 20, 2019, 4 p.m. 6.0 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 42.0 ppb (32) 0.0 ppb (0) N/A 2.5 μg/m3 (10) 32.0
 
Sept. 20, 2019, 3 p.m. 12.0 ppb (11) 3.0 ppb (3) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 33.0 ppb (25) 0.0 ppb (0) N/A 4.2 μg/m3 (18) 25.0
 
Sept. 20, 2019, 2 p.m. 14.0 ppb (13) 2.0 ppb (2) N/A 12.0 ppb (11) N/A 1.0 ppb (1) 29.0 ppb (22) 0.0 ppb (0) N/A 4.7 μg/m3 (20) 22.0
 
Sept. 20, 2019, 1 p.m. 11.0 ppb (10) 1.0 ppb (1) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 36.0 ppb (28) 0.0 ppb (0) N/A 4.2 μg/m3 (18) 28.0
 
Sept. 20, 2019, noon 9.0 ppb (8) 1.0 ppb (1) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 28.0 ppb (22) 0.0 ppb (0) N/A 4.2 μg/m3 (18) 22.0
 
Sept. 20, 2019, 11 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 30.0 ppb (23) 0.0 ppb (0) N/A 4.1 μg/m3 (17) 23.0
 
Sept. 20, 2019, 10 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 35.0 ppb (27) 0.0 ppb (0) N/A 3.8 μg/m3 (16) 27.0
 
Sept. 20, 2019, 9 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (28) 0.0 ppb (0) N/A 3.9 μg/m3 (16) 28.0
 
Sept. 20, 2019, 8 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 35.0 ppb (27) 0.0 ppb (0) N/A 4.4 μg/m3 (18) 27.0
 
Sept. 20, 2019, 7 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 32.0 ppb (25) 0.0 ppb (0) N/A 4.0 μg/m3 (17) 25.0
 
Sept. 20, 2019, 6 a.m. 10.0 ppb (9) 1.0 ppb (1) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 26.0 ppb (20) 0.0 ppb (0) N/A 3.9 μg/m3 (16) 20.0
 
Sept. 20, 2019, 5 a.m. 12.0 ppb (11) 1.0 ppb (1) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 24.0 ppb (18) 0.0 ppb (0) N/A 4.7 μg/m3 (20) 20.0
 
Sept. 20, 2019, 4 a.m. 12.0 ppb (11) 1.0 ppb (1) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 32.0 ppb (25) 0.0 ppb (0) N/A 4.1 μg/m3 (17) 25.0
 
Sept. 20, 2019, 3 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 43.0 ppb (33) 0.0 ppb (0) N/A 3.7 μg/m3 (15) 33.0
 
Sept. 20, 2019, 2 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 43.0 ppb (33) 0.0 ppb (0) N/A 4.1 μg/m3 (17) 33.0
 
Sept. 20, 2019, 1 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 44.0 ppb (34) 0.0 ppb (0) N/A 4.1 μg/m3 (17) 34.0
 
Sept. 20, 2019, midnight 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 44.0 ppb (34) 0.0 ppb (0) N/A 3.9 μg/m3 (16) 34.0
 
Sept. 19, 2019, 11 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 41.0 ppb (32) 0.0 ppb (0) N/A 3.7 μg/m3 (15) 32.0
 
Sept. 19, 2019, 10 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 46.0 ppb (35) 0.0 ppb (0) N/A 3.5 μg/m3 (15) 35.0
 
Sept. 19, 2019, 9 p.m. 6.0 ppb (6) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 51.0 ppb (39) 0.0 ppb (0) N/A 3.7 μg/m3 (15) 39.0
 
Sept. 19, 2019, 8 p.m. 7.0 ppb (6) 2.0 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 51.0 ppb (39) 0.0 ppb (0) N/A 3.6 μg/m3 (15) 39.0
 
Sept. 19, 2019, 7 p.m. 10.0 ppb (9) 3.0 ppb (3) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 43.0 ppb (33) 0.0 ppb (0) N/A 4.0 μg/m3 (17) 33.0
 
Sept. 19, 2019, 6 p.m. 18.0 ppb (17) 6.0 ppb (6) N/A 12.0 ppb (11) N/A 1.0 ppb (1) 36.0 ppb (28) 0.1 ppb (1) N/A 4.4 μg/m3 (18) 28.0
 
Sept. 19, 2019, 5 p.m. 22.0 ppb (20) 8.0 ppb (7) N/A 14.0 ppb (13) N/A 1.0 ppb (1) 32.0 ppb (25) 0.1 ppb (1) N/A 4.8 μg/m3 (20) 25.0
 
Sept. 19, 2019, 4 p.m. 21.0 ppb (19) 9.0 ppb (8) N/A 13.0 ppb (12) N/A 1.0 ppb (1) 28.0 ppb (22) 0.1 ppb (1) N/A 5.1 μg/m3 (21) 22.0
 
Sept. 19, 2019, 3 p.m. 26.0 ppb (24) 11.0 ppb (10) N/A 15.0 ppb (14) N/A 1.0 ppb (1) 21.0 ppb (16) 0.1 ppb (1) N/A 5.4 μg/m3 (23) 24.0
 
Sept. 19, 2019, 2 p.m. 42.0 ppb (39) 20.0 ppb (19) N/A 21.0 ppb (19) N/A 1.0 ppb (1) 10.0 ppb (8) 0.3 ppb (3) N/A 7.3 μg/m3 (30) 39.0
 
Sept. 19, 2019, 1 p.m. 40.0 ppb (37) 18.0 ppb (17) N/A 22.0 ppb (20) N/A 1.0 ppb (1) 2.0 ppb (2) 0.3 ppb (3) N/A 8.1 μg/m3 (34) 37.0
 
Sept. 19, 2019, noon 21.0 ppb (19) 3.0 ppb (3) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 7.0 ppb (5) 0.2 ppb (2) N/A 7.1 μg/m3 (30) 30.0
 
Sept. 19, 2019, 11 a.m. 10.0 ppb (9) 1.0 ppb (1) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 20.0 ppb (15) 0.0 ppb (0) N/A 6.7 μg/m3 (28) 28.0
 
Sept. 19, 2019, 10 a.m. 8.0 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 26.0 ppb (20) 0.0 ppb (0) N/A 6.8 μg/m3 (28) 28.0
 
Sept. 19, 2019, 9 a.m. 8.0 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 29.0 ppb (22) 0.0 ppb (0) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 19, 2019, 8 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 40.0 ppb (31) 0.0 ppb (0) N/A 4.1 μg/m3 (17) 31.0
 
Sept. 19, 2019, 7 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 50.0 ppb (38) 0.0 ppb (0) N/A 3.1 μg/m3 (13) 38.0
 
Sept. 19, 2019, 6 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 49.0 ppb (38) 0.0 ppb (0) N/A 2.4 μg/m3 (10) 38.0
 
Sept. 19, 2019, 5 a.m. 8.0 ppb (7) 1.0 ppb (1) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 44.0 ppb (34) 0.0 ppb (0) N/A 3.0 μg/m3 (12) 34.0
 
Sept. 19, 2019, 4 a.m. 16.0 ppb (15) 1.0 ppb (1) N/A 15.0 ppb (14) N/A 1.0 ppb (1) 31.0 ppb (24) 0.0 ppb (0) N/A 3.9 μg/m3 (16) 24.0
 
Sept. 19, 2019, 3 a.m. 21.0 ppb (19) 2.0 ppb (2) N/A 19.0 ppb (18) N/A 1.0 ppb (1) 27.0 ppb (21) 0.1 ppb (1) N/A 4.7 μg/m3 (20) 21.0
 
Sept. 19, 2019, 2 a.m. 29.0 ppb (27) 3.0 ppb (3) N/A 26.0 ppb (24) N/A 1.0 ppb (1) 20.0 ppb (15) 0.2 ppb (2) N/A 4.3 μg/m3 (18) 27.0
 
Sept. 19, 2019, 1 a.m. 20.0 ppb (19) 2.0 ppb (2) N/A 18.0 ppb (17) N/A 1.0 ppb (1) 36.0 ppb (28) 0.1 ppb (1) N/A 2.8 μg/m3 (12) 28.0
 
Sept. 19, 2019, midnight 8.0 ppb (7) 2.0 ppb (2) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 50.0 ppb (38) 0.0 ppb (0) N/A 2.2 μg/m3 (9) 38.0
 
Sept. 18, 2019, 11 p.m. 6.0 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 54.0 ppb (42) 0.0 ppb (0) N/A 2.0 μg/m3 (8) 42.0
 
Sept. 18, 2019, 10 p.m. 7.0 ppb (6) 2.0 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 55.0 ppb (42) 0.0 ppb (0) N/A 2.0 μg/m3 (8) 42.0
 
Sept. 18, 2019, 9 p.m. 6.0 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 56.0 ppb (43) 0.0 ppb (0) N/A 2.3 μg/m3 (10) 43.0
 
Sept. 18, 2019, 8 p.m. 5.0 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 54.0 ppb (42) 0.0 ppb (0) N/A 2.4 μg/m3 (10) 42.0
 
Sept. 18, 2019, 7 p.m. 5.0 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 53.0 ppb (41) 0.0 ppb (0) N/A 2.6 μg/m3 (11) 41.0
 
Sept. 18, 2019, 6 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 53.0 ppb (41) 0.0 ppb (0) N/A 2.8 μg/m3 (12) 41.0
 
Sept. 18, 2019, 5 p.m. 13.0 ppb (12) 5.0 ppb (5) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 42.0 ppb (32) 0.0 ppb (0) N/A 4.4 μg/m3 (18) 32.0
 
Sept. 18, 2019, 4 p.m. 25.0 ppb (23) 10.0 ppb (9) N/A 15.0 ppb (14) N/A 1.0 ppb (1) 30.0 ppb (23) 0.1 ppb (1) N/A 5.3 μg/m3 (22) 23.0
 
Sept. 18, 2019, 3 p.m. 31.0 ppb (29) 13.0 ppb (12) N/A 18.0 ppb (17) N/A 1.0 ppb (1) 22.0 ppb (17) 0.2 ppb (2) N/A 5.5 μg/m3 (23) 29.0
 
Sept. 18, 2019, 2 p.m. 52.0 ppb (48) 25.0 ppb (23) N/A 27.0 ppb (25) N/A 1.0 ppb (1) 11.0 ppb (8) 0.4 ppb (4) N/A 6.7 μg/m3 (28) 48.0
 
Sept. 18, 2019, 1 p.m. 47.0 ppb (44) 19.0 ppb (18) N/A 28.0 ppb (26) N/A 0.0 ppb (0) 3.0 ppb (2) 0.4 ppb (4) N/A 7.2 μg/m3 (30) 44.0
 
Sept. 18, 2019, noon 24.0 ppb (22) 4.0 ppb (4) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 8.0 ppb (6) 0.2 ppb (2) N/A 6.2 μg/m3 (26) 26.0
 
Sept. 18, 2019, 11 a.m. 15.0 ppb (14) 2.0 ppb (2) N/A 13.0 ppb (12) N/A 0.0 ppb (0) N/A 0.0 ppb (0) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 18, 2019, 10 a.m. 10.0 ppb (9) 1.0 ppb (1) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 23.0 ppb (18) 0.0 ppb (0) N/A 5.8 μg/m3 (24) 24.0
 
Sept. 18, 2019, 9 a.m. 16.0 ppb (15) 1.0 ppb (1) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 14.0 ppb (11) 0.0 ppb (0) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 18, 2019, 8 a.m. 13.0 ppb (12) 1.0 ppb (1) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 19.0 ppb (15) 0.0 ppb (0) N/A 5.5 μg/m3 (23) 23.0
 
Sept. 18, 2019, 7 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 40.0 ppb (31) 0.0 ppb (0) N/A 5.0 μg/m3 (21) 31.0
 
Sept. 18, 2019, 6 a.m. 9.0 ppb (8) 1.0 ppb (1) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 30.0 ppb (23) 0.0 ppb (0) N/A 4.7 μg/m3 (20) 23.0
 
Sept. 18, 2019, 5 a.m. 11.0 ppb (10) 1.0 ppb (1) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 28.0 ppb (22) 0.0 ppb (0) N/A 4.9 μg/m3 (20) 22.0
 
Sept. 18, 2019, 4 a.m. 12.0 ppb (11) 1.0 ppb (1) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 28.0 ppb (22) 0.0 ppb (0) N/A 6.0 μg/m3 (25) 25.0
 
Sept. 18, 2019, 3 a.m. 9.0 ppb (8) 1.0 ppb (1) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 31.0 ppb (24) 0.0 ppb (0) N/A 5.4 μg/m3 (23) 24.0
 
Sept. 18, 2019, 2 a.m. 15.0 ppb (14) 1.0 ppb (1) N/A 14.0 ppb (13) N/A 1.0 ppb (1) 24.0 ppb (18) 0.1 ppb (1) N/A 5.1 μg/m3 (21) 21.0
 
Sept. 18, 2019, 1 a.m. 11.0 ppb (10) 1.0 ppb (1) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 33.0 ppb (25) 0.0 ppb (0) N/A 4.3 μg/m3 (18) 25.0
 
Sept. 18, 2019, midnight 7.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 39.0 ppb (30) 0.0 ppb (0) N/A 3.9 μg/m3 (16) 30.0
 
Sept. 17, 2019, 11 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 44.0 ppb (34) 0.0 ppb (0) N/A 3.8 μg/m3 (16) 34.0
 
Sept. 17, 2019, 10 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 47.0 ppb (36) 0.0 ppb (0) N/A 4.3 μg/m3 (18) 36.0
 
Sept. 17, 2019, 9 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 49.0 ppb (38) 0.0 ppb (0) N/A 4.8 μg/m3 (20) 38.0
 
Sept. 17, 2019, 8 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 49.0 ppb (38) 0.0 ppb (0) N/A 4.8 μg/m3 (20) 38.0
 
Sept. 17, 2019, 7 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 50.0 ppb (38) 0.0 ppb (0) N/A 5.1 μg/m3 (21) 38.0
 
Sept. 17, 2019, 6 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 51.0 ppb (39) 0.0 ppb (0) N/A 6.0 μg/m3 (25) 39.0
 
Sept. 17, 2019, 5 p.m. 5.0 ppb (5) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 50.0 ppb (38) 0.0 ppb (0) N/A 7.2 μg/m3 (30) 38.0
 
Sept. 17, 2019, 4 p.m. 14.0 ppb (13) 5.0 ppb (5) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 42.0 ppb (32) 0.0 ppb (0) N/A 9.3 μg/m3 (39) 39.0
 
Sept. 17, 2019, 3 p.m. 22.0 ppb (20) 6.0 ppb (6) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 35.0 ppb (27) 0.0 ppb (0) N/A 9.6 μg/m3 (40) 40.0
 
Sept. 17, 2019, 2 p.m. 15.0 ppb (14) 2.0 ppb (2) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 34.0 ppb (26) 0.1 ppb (1) N/A 8.8 μg/m3 (37) 37.0
 
Sept. 17, 2019, 1 p.m. 6.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 40.0 ppb (31) 0.0 ppb (0) N/A 6.7 μg/m3 (28) 31.0
 
Sept. 17, 2019, noon 6.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 29.0 ppb (22) 0.0 ppb (0) N/A 6.2 μg/m3 (26) 26.0
 
Sept. 17, 2019, 11 a.m. 6.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 28.0 ppb (22) 0.0 ppb (0) N/A 7.2 μg/m3 (30) 30.0
 
Sept. 17, 2019, 10 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (28) 0.0 ppb (0) N/A 9.9 μg/m3 (41) 41.0
 
Sept. 17, 2019, 9 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 41.0 ppb (32) 0.0 ppb (0) N/A 9.4 μg/m3 (39) 39.0
 
Sept. 17, 2019, 8 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (32) 0.0 ppb (0) N/A 9.7 μg/m3 (40) 40.0
 
Sept. 17, 2019, 7 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 44.0 ppb (34) 0.0 ppb (0) N/A 5.7 μg/m3 (24) 34.0
 
Sept. 17, 2019, 6 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 46.0 ppb (35) 0.0 ppb (0) N/A 3.5 μg/m3 (15) 35.0
 
Sept. 17, 2019, 5 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 48.0 ppb (37) 0.0 ppb (0) N/A 3.7 μg/m3 (15) 37.0
 
Sept. 17, 2019, 4 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 47.0 ppb (36) 0.0 ppb (0) N/A 4.2 μg/m3 (18) 36.0
 
Sept. 17, 2019, 3 a.m. 6.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 44.0 ppb (34) 0.0 ppb (0) N/A 4.4 μg/m3 (18) 34.0
 
Sept. 17, 2019, 2 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 47.0 ppb (36) 0.0 ppb (0) N/A 4.1 μg/m3 (17) 36.0
 
Sept. 17, 2019, 1 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 48.0 ppb (37) 0.0 ppb (0) N/A 5.3 μg/m3 (22) 37.0
 
Sept. 17, 2019, midnight 6.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 49.0 ppb (38) 0.0 ppb (0) N/A 4.1 μg/m3 (17) 38.0
 
Sept. 16, 2019, 11 p.m. 7.0 ppb (6) 2.0 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 50.0 ppb (38) 0.0 ppb (0) N/A 3.6 μg/m3 (15) 38.0
 
Sept. 16, 2019, 10 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 52.0 ppb (40) 0.0 ppb (0) N/A 3.4 μg/m3 (14) 40.0
 
Sept. 16, 2019, 9 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 51.0 ppb (39) 0.0 ppb (0) N/A 3.9 μg/m3 (16) 39.0
 
Sept. 16, 2019, 8 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 50.0 ppb (38) 0.0 ppb (0) N/A 4.1 μg/m3 (17) 38.0
 
Sept. 16, 2019, 7 p.m. 5.0 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 50.0 ppb (38) 0.0 ppb (0) N/A 3.9 μg/m3 (16) 38.0
 
Sept. 16, 2019, 6 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 50.0 ppb (38) 0.0 ppb (0) N/A 4.1 μg/m3 (17) 38.0
 
Sept. 16, 2019, 5 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 48.0 ppb (37) 0.0 ppb (0) N/A 3.5 μg/m3 (15) 37.0
 
Sept. 16, 2019, 4 p.m. 10.0 ppb (9) 3.0 ppb (3) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 43.0 ppb (33) 0.0 ppb (0) N/A 2.6 μg/m3 (11) 33.0
 
Sept. 16, 2019, 3 p.m. 26.0 ppb (24) 9.0 ppb (8) N/A 17.0 ppb (16) N/A 1.0 ppb (1) 26.0 ppb (20) 0.1 ppb (1) N/A 2.8 μg/m3 (12) 24.0
 
Sept. 16, 2019, 2 p.m. 47.0 ppb (44) 19.0 ppb (18) N/A 28.0 ppb (26) N/A 1.0 ppb (1) 7.0 ppb (5) 0.4 ppb (4) N/A 7.3 μg/m3 (30) 44.0
 
Sept. 16, 2019, 1 p.m. 41.0 ppb (38) 10.0 ppb (9) N/A 32.0 ppb (30) N/A 1.0 ppb (1) 9.0 ppb (7) 0.3 ppb (3) N/A 6.1 μg/m3 (25) 38.0
 
Sept. 16, 2019, noon 25.0 ppb (23) 5.0 ppb (5) N/A 20.0 ppb (19) N/A 1.0 ppb (1) 19.0 ppb (15) 0.1 ppb (1) N/A 5.9 μg/m3 (25) 25.0
 
Sept. 16, 2019, 11 a.m. 10.0 ppb (9) 1.0 ppb (1) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 5.7 μg/m3 (24) 24.0
 
Sept. 16, 2019, 10 a.m. 8.0 ppb (7) 1.0 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 33.0 ppb (25) 0.0 ppb (0) N/A 5.7 μg/m3 (24) 25.0
 
Sept. 16, 2019, 9 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 30.0 ppb (23) 0.0 ppb (0) N/A 5.9 μg/m3 (25) 25.0
 
Sept. 16, 2019, 8 a.m. 8.0 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 29.0 ppb (22) 0.0 ppb (0) N/A 5.3 μg/m3 (22) 22.0
 
Sept. 16, 2019, 7 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 45.0 ppb (35) 0.0 ppb (0) N/A 4.3 μg/m3 (18) 35.0
 
Sept. 16, 2019, 6 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 42.0 ppb (32) 0.0 ppb (0) N/A 4.6 μg/m3 (19) 32.0