AQSQID: 490494001

Site Name: Lindon - Provo

Location: Lindon, UT

Reporting: True, Located: True

Current AQI: 18.0

Lindon UT, US: 40.3414, -111.7136

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 21, 2019, 8 a.m. 19.0 ppb (18) 1.0 ppb (1) N/A 18.0 ppb (17) N/A N/A 11.0 ppb (8) 0.2 ppb (2) 6.0 μg/m3 (5) 3.6 μg/m3 (15) 18.0
 
Jan. 21, 2019, 7 a.m. 20.0 ppb (19) 1.0 ppb (1) N/A 19.0 ppb (18) N/A N/A 12.0 ppb (9) 0.2 ppb (2) 7.0 μg/m3 (6) 3.9 μg/m3 (16) 19.0
 
Jan. 21, 2019, 6 a.m. 15.0 ppb (14) 1.0 ppb (1) N/A 15.0 ppb (14) N/A N/A 15.0 ppb (12) 0.2 ppb (2) 7.0 μg/m3 (6) 3.5 μg/m3 (15) 15.0
 
Jan. 21, 2019, 5 a.m. 17.0 ppb (16) 1.0 ppb (1) N/A 16.0 ppb (15) N/A N/A 15.0 ppb (12) 0.2 ppb (2) 6.0 μg/m3 (5) 3.2 μg/m3 (13) 16.0
 
Jan. 21, 2019, 4 a.m. 24.0 ppb (22) 2.0 ppb (2) N/A 23.0 ppb (21) N/A N/A 8.0 ppb (6) 0.3 ppb (3) 10.0 μg/m3 (9) 5.0 μg/m3 (21) 22.0
 
Jan. 21, 2019, 3 a.m. 25.0 ppb (23) 2.0 ppb (2) N/A 23.0 ppb (21) N/A N/A 8.0 ppb (6) 0.3 ppb (3) 15.0 μg/m3 (14) 6.8 μg/m3 (28) 28.0
 
Jan. 21, 2019, 2 a.m. 22.0 ppb (20) 1.0 ppb (1) N/A 21.0 ppb (19) N/A N/A 11.0 ppb (8) 0.3 ppb (3) 14.0 μg/m3 (13) 5.4 μg/m3 (23) 23.0
 
Jan. 21, 2019, 1 a.m. 14.0 ppb (13) 1.0 ppb (1) N/A 14.0 ppb (13) N/A N/A 17.0 ppb (13) 0.1 ppb (1) 12.0 μg/m3 (11) 3.7 μg/m3 (15) 15.0
 
Jan. 21, 2019, midnight 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 31.0 ppb (24) 0.0 ppb (0) 4.0 μg/m3 (4) 1.3 μg/m3 (5) 24.0
 
Jan. 20, 2019, 11 p.m. 14.0 ppb (13) 2.0 ppb (2) N/A 13.0 ppb (12) N/A N/A 18.0 ppb (14) 0.2 ppb (2) 15.0 μg/m3 (14) 5.1 μg/m3 (21) 21.0
 
Jan. 20, 2019, 10 p.m. 8.0 ppb (7) 2.0 ppb (2) N/A 7.0 ppb (6) N/A N/A 26.0 ppb (20) 0.1 ppb (1) 7.0 μg/m3 (6) 2.9 μg/m3 (12) 20.0
 
Jan. 20, 2019, 9 p.m. 10.0 ppb (9) 2.0 ppb (2) N/A 8.0 ppb (7) N/A N/A 25.0 ppb (19) 0.1 ppb (1) 10.0 μg/m3 (9) 4.3 μg/m3 (18) 19.0
 
Jan. 20, 2019, 8 p.m. 11.0 ppb (10) 3.0 ppb (3) N/A 8.0 ppb (7) N/A N/A 24.0 ppb (18) 0.1 ppb (1) 10.0 μg/m3 (9) 3.9 μg/m3 (16) 18.0
 
Jan. 20, 2019, 7 p.m. 12.0 ppb (11) 4.0 ppb (4) N/A 8.0 ppb (7) N/A N/A 24.0 ppb (18) 0.1 ppb (1) 11.0 μg/m3 (10) 4.4 μg/m3 (18) 18.0
 
Jan. 20, 2019, 6 p.m. 13.0 ppb (12) 5.0 ppb (5) N/A 9.0 ppb (8) N/A N/A 22.0 ppb (17) 0.1 ppb (1) 9.0 μg/m3 (8) 4.7 μg/m3 (20) 20.0
 
Jan. 20, 2019, 5 p.m. 18.0 ppb (17) 6.0 ppb (6) N/A 12.0 ppb (11) N/A N/A 18.0 ppb (14) 0.2 ppb (2) 9.0 μg/m3 (8) 4.6 μg/m3 (19) 19.0
 
Jan. 20, 2019, 4 p.m. 22.0 ppb (20) 7.0 ppb (6) N/A 14.0 ppb (13) N/A N/A 12.0 ppb (9) 0.2 ppb (2) 8.0 μg/m3 (7) 4.4 μg/m3 (18) 20.0
 
Jan. 20, 2019, 3 p.m. 30.0 ppb (28) 11.0 ppb (10) N/A 19.0 ppb (18) N/A N/A 5.0 ppb (4) 0.3 ppb (3) 7.0 μg/m3 (6) 3.4 μg/m3 (14) 28.0
 
Jan. 20, 2019, 2 p.m. 26.0 ppb (24) 5.0 ppb (5) N/A 21.0 ppb (19) N/A N/A 3.0 ppb (2) 0.1 ppb (1) 4.0 μg/m3 (4) 2.2 μg/m3 (9) 24.0
 
Jan. 20, 2019, 1 p.m. 21.0 ppb (19) 2.0 ppb (2) N/A 18.0 ppb (17) N/A N/A 5.0 ppb (4) 0.1 ppb (1) 4.0 μg/m3 (4) 2.3 μg/m3 (10) 19.0
 
Jan. 20, 2019, noon 18.0 ppb (17) 1.0 ppb (1) N/A 16.0 ppb (15) N/A N/A 7.0 ppb (5) 0.1 ppb (1) 4.0 μg/m3 (4) 2.5 μg/m3 (10) 17.0
 
Jan. 20, 2019, 11 a.m. 19.0 ppb (18) 2.0 ppb (2) N/A 17.0 ppb (16) N/A N/A 6.0 ppb (5) 0.2 ppb (2) 7.0 μg/m3 (6) 4.3 μg/m3 (18) 18.0
 
Jan. 20, 2019, 10 a.m. 23.0 ppb (21) 2.0 ppb (2) N/A 21.0 ppb (19) N/A N/A 4.0 ppb (3) 0.2 ppb (2) 15.0 μg/m3 (14) 8.9 μg/m3 (37) 37.0
 
Jan. 20, 2019, 9 a.m. 20.0 ppb (19) 1.0 ppb (1) N/A 19.0 ppb (18) N/A N/A 8.0 ppb (6) 0.2 ppb (2) 12.0 μg/m3 (11) 6.3 μg/m3 (26) 26.0
 
Jan. 20, 2019, 8 a.m. 18.0 ppb (17) 1.0 ppb (1) N/A 17.0 ppb (16) N/A N/A 14.0 ppb (11) 0.2 ppb (2) 12.0 μg/m3 (11) 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2019, 7 a.m. 19.0 ppb (18) 1.0 ppb (1) N/A 18.0 ppb (17) N/A N/A 11.0 ppb (8) 0.2 ppb (2) 13.0 μg/m3 (12) 6.5 μg/m3 (27) 27.0
 
Jan. 20, 2019, 6 a.m. 22.0 ppb (20) 2.0 ppb (2) N/A 21.0 ppb (19) N/A N/A 12.0 ppb (9) 0.2 ppb (2) 15.0 μg/m3 (14) 7.1 μg/m3 (30) 30.0
 
Jan. 20, 2019, 5 a.m. 30.0 ppb (28) 3.0 ppb (3) N/A 27.0 ppb (25) N/A N/A 5.0 ppb (4) 0.3 ppb (3) 20.0 μg/m3 (18) 9.0 μg/m3 (38) 38.0
 
Jan. 20, 2019, 4 a.m. 29.0 ppb (27) 2.0 ppb (2) N/A 27.0 ppb (25) N/A N/A 4.0 ppb (3) 0.3 ppb (3) 20.0 μg/m3 (18) 9.2 μg/m3 (38) 38.0
 
Jan. 20, 2019, 3 a.m. 32.0 ppb (30) 3.0 ppb (3) N/A 29.0 ppb (27) N/A N/A 3.0 ppb (2) 0.3 ppb (3) 21.0 μg/m3 (19) 8.3 μg/m3 (35) 35.0
 
Jan. 20, 2019, 2 a.m. 23.0 ppb (21) 1.0 ppb (1) N/A 22.0 ppb (20) N/A N/A 12.0 ppb (9) 0.2 ppb (2) 16.0 μg/m3 (15) 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2019, 1 a.m. 19.0 ppb (18) 0.0 ppb (0) N/A 19.0 ppb (18) N/A N/A 17.0 ppb (13) 0.2 ppb (2) 14.0 μg/m3 (13) 5.1 μg/m3 (21) 21.0
 
Jan. 20, 2019, midnight 16.0 ppb (15) 1.0 ppb (1) N/A 16.0 ppb (15) N/A N/A 22.0 ppb (17) 0.1 ppb (1) 10.0 μg/m3 (9) 3.2 μg/m3 (13) 17.0
 
Jan. 19, 2019, 11 p.m. 12.0 ppb (11) 2.0 ppb (2) N/A 11.0 ppb (10) N/A N/A 27.0 ppb (21) 0.1 ppb (1) 9.0 μg/m3 (8) 2.7 μg/m3 (11) 21.0
 
Jan. 19, 2019, 10 p.m. 11.0 ppb (10) 3.0 ppb (3) N/A 9.0 ppb (8) N/A N/A 30.0 ppb (23) 0.1 ppb (1) 10.0 μg/m3 (9) 2.9 μg/m3 (12) 23.0
 
Jan. 19, 2019, 9 p.m. 17.0 ppb (16) 6.0 ppb (6) N/A 11.0 ppb (10) N/A N/A 26.0 ppb (20) 0.1 ppb (1) 13.0 μg/m3 (12) 4.3 μg/m3 (18) 20.0
 
Jan. 19, 2019, 8 p.m. 18.0 ppb (17) 6.0 ppb (6) N/A 12.0 ppb (11) N/A N/A 25.0 ppb (19) 0.1 ppb (1) 13.0 μg/m3 (12) 4.2 μg/m3 (18) 19.0
 
Jan. 19, 2019, 7 p.m. 15.0 ppb (14) 5.0 ppb (5) N/A 11.0 ppb (10) N/A N/A 27.0 ppb (21) 0.2 ppb (2) 13.0 μg/m3 (12) 4.7 μg/m3 (20) 21.0
 
Jan. 19, 2019, 6 p.m. 11.0 ppb (10) 3.0 ppb (3) N/A 8.0 ppb (7) N/A N/A 29.0 ppb (22) 0.1 ppb (1) 9.0 μg/m3 (8) 3.8 μg/m3 (16) 22.0
 
Jan. 19, 2019, 5 p.m. 17.0 ppb (16) 5.0 ppb (5) N/A 12.0 ppb (11) N/A N/A 24.0 ppb (18) 0.1 ppb (1) 10.0 μg/m3 (9) 5.0 μg/m3 (21) 21.0
 
Jan. 19, 2019, 4 p.m. 19.0 ppb (18) 5.0 ppb (5) N/A 14.0 ppb (13) N/A N/A 21.0 ppb (16) 0.1 ppb (1) 8.0 μg/m3 (7) 4.4 μg/m3 (18) 18.0
 
Jan. 19, 2019, 3 p.m. 19.0 ppb (18) 3.0 ppb (3) N/A 16.0 ppb (15) N/A N/A 14.0 ppb (11) 0.1 ppb (1) 8.0 μg/m3 (7) 4.6 μg/m3 (19) 19.0
 
Jan. 19, 2019, 2 p.m. 24.0 ppb (22) 2.0 ppb (2) N/A 23.0 ppb (21) N/A N/A 6.0 ppb (5) 0.2 ppb (2) 7.0 μg/m3 (6) 4.0 μg/m3 (17) 22.0
 
Jan. 19, 2019, 1 p.m. 24.0 ppb (22) 1.0 ppb (1) N/A 23.0 ppb (21) N/A N/A 6.0 ppb (5) 0.2 ppb (2) 5.0 μg/m3 (5) 2.8 μg/m3 (12) 22.0
 
Jan. 19, 2019, noon 20.0 ppb (19) 1.0 ppb (1) N/A 19.0 ppb (18) N/A N/A 9.0 ppb (7) 0.2 ppb (2) 5.0 μg/m3 (5) 3.1 μg/m3 (13) 19.0
 
Jan. 19, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) 0.1 ppb (1) 4.0 μg/m3 (4) 3.1 μg/m3 (13) 13.0
 
Jan. 19, 2019, 10 a.m. 18.0 ppb (17) 1.0 ppb (1) N/A 17.0 ppb (16) N/A N/A 10.0 ppb (8) 0.1 ppb (1) 3.0 μg/m3 (3) 2.0 μg/m3 (8) 17.0
 
Jan. 19, 2019, 9 a.m. 13.0 ppb (12) 1.0 ppb (1) N/A 13.0 ppb (12) N/A N/A 14.0 ppb (11) 0.1 ppb (1) 3.0 μg/m3 (3) 2.0 μg/m3 (8) 12.0
 
Jan. 19, 2019, 8 a.m. 8.0 ppb (7) 0.0 ppb (0) N/A 8.0 ppb (7) N/A N/A 23.0 ppb (18) 0.1 ppb (1) 4.0 μg/m3 (4) 2.3 μg/m3 (10) 18.0
 
Jan. 19, 2019, 7 a.m. 15.0 ppb (14) 1.0 ppb (1) N/A 14.0 ppb (13) N/A N/A 15.0 ppb (12) 0.2 ppb (2) 6.0 μg/m3 (5) 3.9 μg/m3 (16) 16.0
 
Jan. 19, 2019, 6 a.m. 17.0 ppb (16) 1.0 ppb (1) N/A 16.0 ppb (15) N/A N/A 15.0 ppb (12) 0.2 ppb (2) 10.0 μg/m3 (9) 7.8 μg/m3 (32) 32.0
 
Jan. 19, 2019, 5 a.m. 22.0 ppb (20) 1.0 ppb (1) N/A 21.0 ppb (19) N/A N/A 9.0 ppb (7) 0.2 ppb (2) 8.0 μg/m3 (7) 5.1 μg/m3 (21) 21.0
 
Jan. 19, 2019, 4 a.m. 18.0 ppb (17) 1.0 ppb (1) N/A 17.0 ppb (16) N/A N/A 11.0 ppb (8) 0.2 ppb (2) 6.0 μg/m3 (5) 3.6 μg/m3 (15) 17.0
 
Jan. 19, 2019, 3 a.m. 21.0 ppb (19) 1.0 ppb (1) N/A 20.0 ppb (19) N/A N/A 10.0 ppb (8) 0.2 ppb (2) 6.0 μg/m3 (5) 3.2 μg/m3 (13) 19.0
 
Jan. 19, 2019, 2 a.m. 23.0 ppb (21) 1.0 ppb (1) N/A 22.0 ppb (20) N/A N/A 12.0 ppb (9) 0.2 ppb (2) 9.0 μg/m3 (8) 4.6 μg/m3 (19) 21.0
 
Jan. 19, 2019, 1 a.m. 10.0 ppb (9) 0.0 ppb (0) N/A 10.0 ppb (9) N/A N/A 27.0 ppb (21) 0.1 ppb (1) 5.0 μg/m3 (5) 2.2 μg/m3 (9) 21.0
 
Jan. 19, 2019, midnight 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A 33.0 ppb (25) 0.1 ppb (1) 3.0 μg/m3 (3) 1.4 μg/m3 (6) 25.0
 
Jan. 18, 2019, 11 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 35.0 ppb (27) 0.1 ppb (1) 2.0 μg/m3 (2) 1.0 μg/m3 (4) 27.0
 
Jan. 18, 2019, 10 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (29) 0.0 ppb (0) 1.0 μg/m3 (1) 0.7 μg/m3 (3) 29.0
 
Jan. 18, 2019, 9 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (29) 0.0 ppb (0) 2.0 μg/m3 (2) 0.7 μg/m3 (3) 29.0
 
Jan. 18, 2019, 8 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 38.0 ppb (29) 0.0 ppb (0) 2.0 μg/m3 (2) 0.9 μg/m3 (4) 29.0
 
Jan. 18, 2019, 7 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 38.0 ppb (29) 0.0 ppb (0) 3.0 μg/m3 (3) 1.4 μg/m3 (6) 29.0
 
Jan. 18, 2019, 6 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 38.0 ppb (29) 0.0 ppb (0) 3.0 μg/m3 (3) 1.2 μg/m3 (5) 29.0
 
Jan. 18, 2019, 5 p.m. 19.0 ppb (18) 5.0 ppb (5) N/A 15.0 ppb (14) N/A N/A 29.0 ppb (22) 0.1 ppb (1) 8.0 μg/m3 (7) 2.7 μg/m3 (11) 22.0
 
Jan. 18, 2019, 4 p.m. 12.0 ppb (11) 3.0 ppb (3) N/A 10.0 ppb (9) N/A N/A 32.0 ppb (25) 0.1 ppb (1) 8.0 μg/m3 (7) 2.6 μg/m3 (11) 25.0
 
Jan. 18, 2019, 3 p.m. 25.0 ppb (23) 5.0 ppb (5) N/A 20.0 ppb (19) N/A N/A 20.0 ppb (15) 0.2 ppb (2) 14.0 μg/m3 (13) 4.2 μg/m3 (18) 23.0
 
Jan. 18, 2019, 2 p.m. 27.0 ppb (25) 3.0 ppb (3) N/A 24.0 ppb (22) N/A N/A 17.0 ppb (13) 0.2 ppb (2) 20.0 μg/m3 (18) 5.2 μg/m3 (22) 25.0
 
Jan. 18, 2019, 1 p.m. 14.0 ppb (13) 0.0 ppb (0) N/A 14.0 ppb (13) N/A N/A 26.0 ppb (20) 0.1 ppb (1) 20.0 μg/m3 (18) 6.5 μg/m3 (27) 27.0
 
Jan. 18, 2019, noon 20.0 ppb (19) 1.0 ppb (1) N/A 19.0 ppb (18) N/A N/A 17.0 ppb (13) 0.1 ppb (1) 41.0 μg/m3 (37) 10.4 μg/m3 (43) 43.0
 
Jan. 18, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) 0.1 ppb (1) 30.0 μg/m3 (27) 4.9 μg/m3 (20) 27.0
 
Jan. 18, 2019, 10 a.m. 8.0 ppb (7) 0.0 ppb (0) N/A 8.0 ppb (7) N/A N/A 26.0 ppb (20) 0.1 ppb (1) 16.0 μg/m3 (15) 2.3 μg/m3 (10) 20.0
 
Jan. 18, 2019, 9 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A N/A 29.0 ppb (22) 0.1 ppb (1) 17.0 μg/m3 (15) 2.6 μg/m3 (11) 22.0
 
Jan. 18, 2019, 8 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A 32.0 ppb (25) 0.1 ppb (1) 18.0 μg/m3 (16) 2.4 μg/m3 (10) 25.0
 
Jan. 18, 2019, 7 a.m. 11.0 ppb (10) 0.0 ppb (0) N/A 11.0 ppb (10) N/A N/A 25.0 ppb (19) 0.1 ppb (1) 16.0 μg/m3 (15) 1.7 μg/m3 (7) 19.0
 
Jan. 18, 2019, 6 a.m. 9.0 ppb (8) 0.0 ppb (0) N/A 9.0 ppb (8) N/A N/A 26.0 ppb (20) 0.1 ppb (1) 19.0 μg/m3 (17) 2.4 μg/m3 (10) 20.0
 
Jan. 18, 2019, 5 a.m. 10.0 ppb (9) 0.0 ppb (0) N/A 10.0 ppb (9) N/A N/A 27.0 ppb (21) 0.1 ppb (1) 24.0 μg/m3 (22) 2.4 μg/m3 (10) 22.0
 
Jan. 18, 2019, 4 a.m. 10.0 ppb (9) 0.0 ppb (0) N/A 10.0 ppb (9) N/A N/A 28.0 ppb (22) 0.1 ppb (1) 23.0 μg/m3 (21) 2.1 μg/m3 (9) 22.0
 
Jan. 18, 2019, 3 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A 34.0 ppb (26) 0.1 ppb (1) 10.0 μg/m3 (9) 0.9 μg/m3 (4) 26.0
 
Jan. 18, 2019, 2 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A N/A 32.0 ppb (25) 0.1 ppb (1) 24.0 μg/m3 (22) 1.7 μg/m3 (7) 25.0
 
Jan. 18, 2019, 1 a.m. 10.0 ppb (9) 1.0 ppb (1) N/A 9.0 ppb (8) N/A N/A 29.0 ppb (22) 0.1 ppb (1) 41.0 μg/m3 (37) 2.5 μg/m3 (10) 37.0
 
Jan. 18, 2019, midnight 8.0 ppb (7) 0.0 ppb (0) N/A 8.0 ppb (7) N/A N/A 29.0 ppb (22) 0.1 ppb (1) 33.0 μg/m3 (30) 1.7 μg/m3 (7) 30.0
 
Jan. 17, 2019, 11 p.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 31.0 ppb (24) 0.0 ppb (0) 21.0 μg/m3 (19) 1.0 μg/m3 (4) 24.0
 
Jan. 17, 2019, 10 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 33.0 ppb (25) 0.0 ppb (0) 17.0 μg/m3 (15) 0.9 μg/m3 (4) 25.0
 
Jan. 17, 2019, 9 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (26) 0.0 ppb (0) 1.0 μg/m3 (1) 0.5 μg/m3 (2) 26.0
 
Jan. 17, 2019, 8 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (27) 0.1 ppb (1) 1.0 μg/m3 (1) 0.6 μg/m3 (2) 27.0
 
Jan. 17, 2019, 7 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (27) 0.1 ppb (1) 1.0 μg/m3 (1) N/A 27.0
 
Jan. 17, 2019, 6 p.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (27) 0.0 ppb (0) 1.0 μg/m3 (1) 0.9 μg/m3 (4) 27.0
 
Jan. 17, 2019, 5 p.m. 9.0 ppb (8) 1.0 ppb (1) N/A 9.0 ppb (8) N/A N/A 29.0 ppb (22) 0.1 ppb (1) 1.0 μg/m3 (1) 1.0 μg/m3 (4) 22.0
 
Jan. 17, 2019, 4 p.m. 40.0 ppb (37) 10.0 ppb (9) N/A 29.0 ppb (27) N/A N/A 9.0 ppb (7) 0.3 ppb (3) 3.0 μg/m3 (3) 2.1 μg/m3 (9) 37.0
 
Jan. 17, 2019, 3 p.m. 24.0 ppb (22) 3.0 ppb (3) N/A 21.0 ppb (19) N/A N/A 17.0 ppb (13) 0.2 ppb (2) 3.0 μg/m3 (3) 1.8 μg/m3 (8) 22.0
 
Jan. 17, 2019, 2 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (30) 0.0 ppb (0) 0.0 μg/m3 (0) 0.6 μg/m3 (2) 30.0
 
Jan. 17, 2019, 1 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (32) 0.0 ppb (0) 0.0 μg/m3 (0) 0.6 μg/m3 (2) 32.0
 
Jan. 17, 2019, noon 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (31) 0.0 ppb (0) 0.0 μg/m3 (0) 0.6 μg/m3 (2) 31.0
 
Jan. 17, 2019, 11 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 30.0 ppb (23) 0.0 ppb (0) 0.0 μg/m3 (0) 0.7 μg/m3 (3) 23.0
 
Jan. 17, 2019, 10 a.m. 9.0 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (7) N/A N/A 22.0 ppb (17) 0.1 ppb (1) 1.0 μg/m3 (1) 1.0 μg/m3 (4) 17.0
 
Jan. 17, 2019, 9 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 30.0 ppb (23) 0.1 ppb (1) 0.0 μg/m3 (0) 0.6 μg/m3 (2) 23.0
 
Jan. 17, 2019, 8 a.m. 8.0 ppb (7) 0.0 ppb (0) N/A 8.0 ppb (7) N/A N/A 25.0 ppb (19) 0.1 ppb (1) 0.0 μg/m3 (0) 0.7 μg/m3 (3) 19.0
 
Jan. 17, 2019, 7 a.m. 10.0 ppb (9) 0.0 ppb (0) N/A 10.0 ppb (9) N/A N/A 24.0 ppb (18) 0.1 ppb (1) 1.0 μg/m3 (1) 1.1 μg/m3 (5) 18.0
 
Jan. 17, 2019, 6 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (26) 0.1 ppb (1) 0.0 μg/m3 (0) 0.8 μg/m3 (3) 26.0
 
Jan. 17, 2019, 5 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (28) 0.0 ppb (0) 0.0 μg/m3 (0) 0.6 μg/m3 (2) 28.0
 
Jan. 17, 2019, 4 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (28) 0.0 ppb (0) 0.0 μg/m3 (0) 0.6 μg/m3 (2) 28.0
 
Jan. 17, 2019, 3 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 33.0 ppb (25) 0.1 ppb (1) 0.0 μg/m3 (0) 0.9 μg/m3 (4) 25.0
 
Jan. 17, 2019, 2 a.m. 12.0 ppb (11) 1.0 ppb (1) N/A 12.0 ppb (11) N/A N/A 25.0 ppb (19) 0.1 ppb (1) 0.0 μg/m3 (0) 1.1 μg/m3 (5) 19.0
 
Jan. 17, 2019, 1 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A 29.0 ppb (22) 0.1 ppb (1) 1.0 μg/m3 (1) 1.7 μg/m3 (7) 22.0
 
Jan. 17, 2019, midnight 7.0 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A N/A 29.0 ppb (22) 0.1 ppb (1) 1.0 μg/m3 (1) 0.9 μg/m3 (4) 22.0
 
Jan. 16, 2019, 11 p.m. 7.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 31.0 ppb (24) 0.1 ppb (1) 1.0 μg/m3 (1) 0.8 μg/m3 (3) 24.0
 
Jan. 16, 2019, 10 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 33.0 ppb (25) 0.0 ppb (0) 0.0 μg/m3 (0) 0.6 μg/m3 (2) 25.0
 
Jan. 16, 2019, 9 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 32.0 ppb (25) 0.1 ppb (1) 0.0 μg/m3 (0) 0.6 μg/m3 (2) 25.0
 
Jan. 16, 2019, 8 p.m. 6.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 31.0 ppb (24) 0.1 ppb (1) 0.0 μg/m3 (0) 0.8 μg/m3 (3) 24.0
 
Jan. 16, 2019, 7 p.m. 7.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 29.0 ppb (22) 0.1 ppb (1) 1.0 μg/m3 (1) 1.1 μg/m3 (5) 22.0
 
Jan. 16, 2019, 6 p.m. 6.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 28.0 ppb (22) 0.1 ppb (1) 1.0 μg/m3 (1) 1.2 μg/m3 (5) 22.0
 
Jan. 16, 2019, 5 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (22) 0.1 ppb (1) 0.0 μg/m3 (0) 0.5 μg/m3 (2) 22.0
 
Jan. 16, 2019, 4 p.m. 6.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A N/A 27.0 ppb (21) 0.1 ppb (1) 1.0 μg/m3 (1) 0.8 μg/m3 (3) 21.0
 
Jan. 16, 2019, 3 p.m. 8.0 ppb (7) 1.0 ppb (1) N/A 8.0 ppb (7) N/A N/A 26.0 ppb (20) 0.1 ppb (1) 0.0 μg/m3 (0) 0.8 μg/m3 (3) 20.0
 
Jan. 16, 2019, 2 p.m. 10.0 ppb (9) 1.0 ppb (1) N/A 10.0 ppb (9) N/A N/A 23.0 ppb (18) 0.1 ppb (1) 0.0 μg/m3 (0) 0.6 μg/m3 (2) 18.0
 
Jan. 16, 2019, 1 p.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 28.0 ppb (22) 0.0 ppb (0) 0.0 μg/m3 (0) 0.5 μg/m3 (2) 22.0
 
Jan. 16, 2019, noon 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 27.0 ppb (21) 0.0 ppb (0) 0.0 μg/m3 (0) 0.8 μg/m3 (3) 21.0
 
Jan. 16, 2019, 11 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A N/A 27.0 ppb (21) 0.0 ppb (0) 1.0 μg/m3 (1) 1.0 μg/m3 (4) 21.0
 
Jan. 16, 2019, 10 a.m. 12.0 ppb (11) 0.0 ppb (0) N/A 11.0 ppb (10) N/A N/A 20.0 ppb (15) 0.1 ppb (1) 1.0 μg/m3 (1) 1.4 μg/m3 (6) 15.0
 
Jan. 16, 2019, 9 a.m. 9.0 ppb (8) 0.0 ppb (0) N/A 9.0 ppb (8) N/A N/A 28.0 ppb (22) 0.1 ppb (1) 1.0 μg/m3 (1) 1.0 μg/m3 (4) 22.0
 
Jan. 16, 2019, 8 a.m. 23.0 ppb (21) 1.0 ppb (1) N/A 22.0 ppb (20) N/A N/A 10.0 ppb (8) 0.2 ppb (2) 8.0 μg/m3 (7) 10.8 μg/m3 (45) 45.0
 
Jan. 16, 2019, 7 a.m. 34.0 ppb (31) 3.0 ppb (3) N/A 31.0 ppb (29) N/A N/A 2.0 ppb (2) 0.3 ppb (3) 15.0 μg/m3 (14) 17.2 μg/m3 (61) 61.0
 
Jan. 16, 2019, 6 a.m. 52.0 ppb (48) 17.0 ppb (16) N/A 35.0 ppb (32) N/A N/A 1.0 ppb (1) 0.5 ppb (6) 17.0 μg/m3 (15) 18.0 μg/m3 (63) 63.0
 
Jan. 16, 2019, 5 a.m. 62.0 ppb (59) 26.0 ppb (24) N/A 36.0 ppb (33) N/A N/A 0.0 ppb (0) 0.6 ppb (7) 20.0 μg/m3 (18) 20.8 μg/m3 (69) 69.0
 
Jan. 16, 2019, 4 a.m. 57.0 ppb (53) 22.0 ppb (20) N/A 35.0 ppb (32) N/A N/A 1.0 ppb (1) 0.5 ppb (6) 20.0 μg/m3 (18) 22.1 μg/m3 (71) 71.0
 
Jan. 16, 2019, 3 a.m. 56.0 ppb (52) 19.0 ppb (18) N/A 37.0 ppb (34) N/A N/A 1.0 ppb (1) 0.5 ppb (6) 22.0 μg/m3 (20) 24.4 μg/m3 (76) 76.0
 
Jan. 16, 2019, 2 a.m. 58.0 ppb (54) 19.0 ppb (18) N/A 38.0 ppb (35) N/A N/A 0.0 ppb (0) 0.5 ppb (6) 18.0 μg/m3 (16) 19.6 μg/m3 (66) 66.0
 
Jan. 16, 2019, 1 a.m. 49.0 ppb (45) 12.0 ppb (11) N/A 37.0 ppb (34) N/A N/A 1.0 ppb (1) 0.4 ppb (4) 20.0 μg/m3 (18) 20.1 μg/m3 (67) 67.0
 
Jan. 16, 2019, midnight 44.0 ppb (41) 9.0 ppb (8) N/A 36.0 ppb (33) N/A N/A 2.0 ppb (2) 0.3 ppb (3) 25.0 μg/m3 (23) 21.7 μg/m3 (71) 71.0
 
Jan. 15, 2019, 11 p.m. 34.0 ppb (31) 4.0 ppb (4) N/A 29.0 ppb (27) N/A N/A 11.0 ppb (8) 0.2 ppb (2) 22.0 μg/m3 (20) 16.9 μg/m3 (60) 60.0
 
Jan. 15, 2019, 10 p.m. 34.0 ppb (31) 9.0 ppb (8) N/A 25.0 ppb (23) N/A N/A 16.0 ppb (12) 0.2 ppb (2) 21.0 μg/m3 (19) 16.5 μg/m3 (60) 60.0
 
Jan. 15, 2019, 9 p.m. 25.0 ppb (23) 6.0 ppb (6) N/A 19.0 ppb (18) N/A N/A 23.0 ppb (18) 0.2 ppb (2) 19.0 μg/m3 (17) 14.4 μg/m3 (55) 55.0
 
Jan. 15, 2019, 8 p.m. 21.0 ppb (19) 3.0 ppb (3) N/A 18.0 ppb (17) N/A N/A 24.0 ppb (18) 0.2 ppb (2) 18.0 μg/m3 (16) 13.7 μg/m3 (54) 54.0
 
Jan. 15, 2019, 7 p.m. 21.0 ppb (19) 3.0 ppb (3) N/A 17.0 ppb (16) N/A N/A 26.0 ppb (20) 0.1 ppb (1) 17.0 μg/m3 (15) 13.3 μg/m3 (53) 53.0
 
Jan. 15, 2019, 6 p.m. 43.0 ppb (40) 15.0 ppb (14) N/A 27.0 ppb (25) N/A N/A 14.0 ppb (11) 0.3 ppb (3) 26.0 μg/m3 (24) 21.5 μg/m3 (70) 70.0
 
Jan. 15, 2019, 5 p.m. 63.0 ppb (60) 28.0 ppb (26) N/A 35.0 ppb (32) N/A N/A 6.0 ppb (5) 0.5 ppb (6) 32.0 μg/m3 (29) 27.2 μg/m3 (82) 82.0
 
Jan. 15, 2019, 4 p.m. 95.0 ppb (94) 58.0 ppb (54) N/A 37.0 ppb (34) N/A N/A 3.0 ppb (2) 0.7 ppb (8) 38.0 μg/m3 (35) 30.8 μg/m3 (90) 94.0
 
Jan. 15, 2019, 3 p.m. 91.0 ppb (89) 53.0 ppb (49) N/A 37.0 ppb (34) N/A N/A 1.0 ppb (1) 0.7 ppb (8) 36.0 μg/m3 (33) 29.2 μg/m3 (87) 89.0
 
Jan. 15, 2019, 2 p.m. 107.0 ppb (101) 68.0 ppb (65) N/A 39.0 ppb (36) N/A N/A 1.0 ppb (1) 0.8 ppb (9) 41.0 μg/m3 (37) 31.2 μg/m3 (91) 101.0
 
Jan. 15, 2019, 1 p.m. 66.0 ppb (63) 31.0 ppb (29) N/A 36.0 ppb (33) N/A N/A 1.0 ppb (1) 0.6 ppb (7) 36.0 μg/m3 (33) 26.8 μg/m3 (81) 81.0
 
Jan. 15, 2019, noon 60.0 ppb (56) 25.0 ppb (23) N/A 35.0 ppb (32) N/A N/A 1.0 ppb (1) 0.5 ppb (6) 37.0 μg/m3 (34) 26.7 μg/m3 (81) 81.0
 
Jan. 15, 2019, 11 a.m. 46.0 ppb (43) 12.0 ppb (11) N/A 35.0 ppb (32) N/A N/A 1.0 ppb (1) 0.4 ppb (4) 36.0 μg/m3 (33) 26.0 μg/m3 (80) 80.0
 
Jan. 15, 2019, 10 a.m. 41.0 ppb (38) 7.0 ppb (6) N/A 34.0 ppb (31) N/A N/A 1.0 ppb (1) 0.3 ppb (3) 33.0 μg/m3 (30) 24.9 μg/m3 (77) 77.0
 
Jan. 15, 2019, 9 a.m. 44.0 ppb (41) 10.0 ppb (9) N/A 34.0 ppb (31) N/A N/A 1.0 ppb (1) 0.3 ppb (3) 31.0 μg/m3 (28) 23.5 μg/m3 (74) 74.0
 
Jan. 15, 2019, 8 a.m. 45.0 ppb (42) 10.0 ppb (9) N/A 35.0 ppb (32) N/A N/A 1.0 ppb (1) 0.4 ppb (4) 31.0 μg/m3 (28) 23.5 μg/m3 (74) 74.0
 
Jan. 15, 2019, 7 a.m. 51.0 ppb (47) 16.0 ppb (15) N/A 34.0 ppb (31) N/A N/A 1.0 ppb (1) 0.4 ppb (4) 28.0 μg/m3 (25) 23.5 μg/m3 (74) 74.0
 
Jan. 15, 2019, 6 a.m. 47.0 ppb (44) 14.0 ppb (13) N/A 33.0 ppb (31) N/A N/A 1.0 ppb (1) 0.4 ppb (4) 30.0 μg/m3 (27) 25.3 μg/m3 (78) 78.0
 
Jan. 15, 2019, 5 a.m. 53.0 ppb (49) 18.0 ppb (17) N/A 35.0 ppb (32) N/A N/A 1.0 ppb (1) 0.4 ppb (4) 34.0 μg/m3 (31) 24.8 μg/m3 (77) 77.0
 
Jan. 15, 2019, 4 a.m. 63.0 ppb (60) 27.0 ppb (25) N/A 37.0 ppb (34) N/A N/A 1.0 ppb (1) 0.5 ppb (6) 38.0 μg/m3 (35) 25.4 μg/m3 (79) 79.0
 
Jan. 15, 2019, 3 a.m. 64.0 ppb (61) 25.0 ppb (23) N/A 39.0 ppb (36) N/A N/A 1.0 ppb (1) 0.6 ppb (7) 41.0 μg/m3 (37) 25.9 μg/m3 (80) 80.0
 
Jan. 15, 2019, 2 a.m. 59.0 ppb (55) 18.0 ppb (17) N/A 41.0 ppb (38) N/A N/A 1.0 ppb (1) 0.5 ppb (6) 41.0 μg/m3 (37) 25.4 μg/m3 (79) 79.0
 
Jan. 15, 2019, 1 a.m. 53.0 ppb (49) 13.0 ppb (12) N/A 41.0 ppb (38) N/A N/A 1.0 ppb (1) 0.5 ppb (6) 42.0 μg/m3 (38) 26.0 μg/m3 (80) 80.0
 
Jan. 15, 2019, midnight 39.0 ppb (36) 4.0 ppb (4) N/A 35.0 ppb (32) N/A N/A 7.0 ppb (5) 0.3 ppb (3) 32.0 μg/m3 (29) 21.6 μg/m3 (70) 70.0
 
Jan. 14, 2019, 11 p.m. 27.0 ppb (25) 4.0 ppb (4) N/A 23.0 ppb (21) N/A N/A 21.0 ppb (16) 0.2 ppb (2) 24.0 μg/m3 (22) 20.1 μg/m3 (67) 67.0
 
Jan. 14, 2019, 10 p.m. 25.0 ppb (23) 6.0 ppb (6) N/A 18.0 ppb (17) N/A N/A 25.0 ppb (19) 0.2 ppb (2) 20.0 μg/m3 (18) 21.9 μg/m3 (71) 71.0
 
Jan. 14, 2019, 9 p.m. 24.0 ppb (22) 8.0 ppb (7) N/A 16.0 ppb (15) N/A N/A 26.0 ppb (20) 0.2 ppb (2) 11.0 μg/m3 (10) 24.2 μg/m3 (76) 76.0
 
Jan. 14, 2019, 8 p.m. 24.0 ppb (22) 9.0 ppb (8) N/A 15.0 ppb (14) N/A N/A 25.0 ppb (19) 0.2 ppb (2) 9.0 μg/m3 (8) 25.0 μg/m3 (78) 78.0
 
Jan. 14, 2019, 7 p.m. 26.0 ppb (24) 10.0 ppb (9) N/A 16.0 ppb (15) N/A N/A 24.0 ppb (18) 0.2 ppb (2) 9.0 μg/m3 (8) 25.9 μg/m3 (80) 80.0
 
Jan. 14, 2019, 6 p.m. 25.0 ppb (23) 9.0 ppb (8) N/A 16.0 ppb (15) N/A N/A 25.0 ppb (19) 0.2 ppb (2) 15.0 μg/m3 (14) 25.4 μg/m3 (79) 79.0
 
Jan. 14, 2019, 5 p.m. 23.0 ppb (21) 8.0 ppb (7) N/A 15.0 ppb (14) N/A N/A 23.0 ppb (18) 0.2 ppb (2) 16.0 μg/m3 (15) 26.3 μg/m3 (80) 80.0
 
Jan. 14, 2019, 4 p.m. 22.0 ppb (20) 6.0 ppb (6) N/A 17.0 ppb (16) N/A N/A 21.0 ppb (16) 0.2 ppb (2) 11.0 μg/m3 (10) 22.5 μg/m3 (72) 72.0
 
Jan. 14, 2019, 3 p.m. 38.0 ppb (35) 12.0 ppb (11) N/A 26.0 ppb (24) N/A N/A 12.0 ppb (9) 0.5 ppb (6) 7.0 μg/m3 (6) 18.9 μg/m3 (65) 65.0
 
Jan. 14, 2019, 2 p.m. 39.0 ppb (36) 9.0 ppb (8) N/A 31.0 ppb (29) N/A N/A 3.0 ppb (2) 0.4 ppb (4) 6.0 μg/m3 (5) 21.2 μg/m3 (70) 70.0
 
Jan. 14, 2019, 1 p.m. 32.0 ppb (30) 3.0 ppb (3) N/A 29.0 ppb (27) N/A N/A 5.0 ppb (4) 0.3 ppb (3) 3.0 μg/m3 (3) 14.0 μg/m3 (54) 54.0
 
Jan. 14, 2019, noon 24.0 ppb (22) 2.0 ppb (2) N/A 22.0 ppb (20) N/A N/A 10.0 ppb (8) 0.2 ppb (2) 2.0 μg/m3 (2) 11.4 μg/m3 (48) 48.0
 
Jan. 14, 2019, 11 a.m. 14.0 ppb (13) 1.0 ppb (1) N/A 13.0 ppb (12) N/A N/A 21.0 ppb (16) N/A 2.0 μg/m3 (2) 8.9 μg/m3 (37) 37.0
 
Jan. 14, 2019, 10 a.m. 10.0 ppb (9) 0.0 ppb (0) N/A 9.0 ppb (8) N/A N/A 30.0 ppb (23) 0.1 ppb (1) 2.0 μg/m3 (2) 7.0 μg/m3 (29) 29.0
 
Jan. 14, 2019, 9 a.m. 18.0 ppb (17) 1.0 ppb (1) N/A 18.0 ppb (17) N/A N/A 15.0 ppb (12) 0.2 ppb (2) 3.0 μg/m3 (3) 10.7 μg/m3 (45) 45.0