AQSQID: 490353006

Site Name: Hawthorne

Location: Salt Lake City, UT

Reporting: True, Located: True

Current AQI: 45.0

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
May 24, 2019, 1 a.m. 9.0 ppb (8) 1.0 ppb (1) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 59.0 ppb (45) 0.2 ppb (2) N/A 2.1 μg/m3 (9) 45.0
 
May 24, 2019, midnight 11.0 ppb (10) 2.0 ppb (2) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 57.0 ppb (44) 0.2 ppb (2) N/A 2.2 μg/m3 (9) 44.0
 
May 23, 2019, 11 p.m. 7.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 57.0 ppb (44) 0.1 ppb (1) N/A 2.0 μg/m3 (8) 44.0
 
May 23, 2019, 10 p.m. 8.0 ppb (7) 2.0 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 53.0 ppb (41) 0.1 ppb (1) N/A 2.1 μg/m3 (9) 41.0
 
May 23, 2019, 9 p.m. 13.0 ppb (12) 3.0 ppb (3) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 47.0 ppb (36) 0.2 ppb (2) N/A 2.8 μg/m3 (12) 36.0
 
May 23, 2019, 8 p.m. 11.0 ppb (10) 2.0 ppb (2) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 54.0 ppb (42) 0.1 ppb (1) N/A 2.6 μg/m3 (11) 42.0
 
May 23, 2019, 7 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 49.0 ppb (38) 0.1 ppb (1) N/A 1.6 μg/m3 (7) 38.0
 
May 23, 2019, 6 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (33) 0.1 ppb (1) N/A 1.5 μg/m3 (6) 33.0
 
May 23, 2019, 5 p.m. 3.0 ppb (3) 2.0 ppb (2) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (32) 0.1 ppb (1) N/A 1.5 μg/m3 (6) 32.0
 
May 23, 2019, 4 p.m. 4.0 ppb (4) 2.0 ppb (2) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (31) 0.1 ppb (1) N/A 1.5 μg/m3 (6) 31.0
 
May 23, 2019, 3 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (32) 0.1 ppb (1) N/A 1.5 μg/m3 (6) 32.0
 
May 23, 2019, 2 p.m. 5.0 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (31) 0.1 ppb (1) N/A 1.5 μg/m3 (6) 31.0
 
May 23, 2019, 1 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 40.0 ppb (31) 0.1 ppb (1) N/A 1.5 μg/m3 (6) 31.0
 
May 23, 2019, noon 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 43.0 ppb (33) 0.1 ppb (1) N/A 1.7 μg/m3 (7) 33.0
 
May 23, 2019, 11 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 44.0 ppb (34) 0.1 ppb (1) N/A 1.8 μg/m3 (8) 34.0
 
May 23, 2019, 10 a.m. 2.0 ppb (2) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 45.0 ppb (35) 0.1 ppb (1) N/A 1.8 μg/m3 (8) 35.0
 
May 23, 2019, 9 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 45.0 ppb (35) 0.0 ppb (0) N/A 1.8 μg/m3 (8) 35.0
 
May 23, 2019, 8 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 1.0 ppb (1) 43.0 ppb (33) 0.0 ppb (0) N/A 1.8 μg/m3 (8) 33.0
 
May 23, 2019, 7 a.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 39.0 ppb (30) 0.1 ppb (1) N/A 1.6 μg/m3 (7) 30.0
 
May 23, 2019, 6 a.m. 8.0 ppb (7) 1.0 ppb (1) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 26.0 ppb (20) 0.1 ppb (1) N/A 1.5 μg/m3 (6) 20.0
 
May 23, 2019, 5 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 36.0 ppb (28) 0.1 ppb (1) N/A 1.2 μg/m3 (5) 28.0
 
May 23, 2019, 4 a.m. 17.0 ppb (16) 1.0 ppb (1) N/A 16.0 ppb (15) N/A 1.0 ppb (1) 16.0 ppb (12) 0.2 ppb (2) N/A 3.6 μg/m3 (15) 16.0
 
May 23, 2019, 3 a.m. 14.0 ppb (13) 1.0 ppb (1) N/A 13.0 ppb (12) N/A 1.0 ppb (1) 19.0 ppb (15) 0.2 ppb (2) N/A 3.7 μg/m3 (15) 15.0
 
May 23, 2019, 2 a.m. 14.0 ppb (13) 2.0 ppb (2) N/A 12.0 ppb (11) N/A 1.0 ppb (1) 24.0 ppb (18) 0.2 ppb (2) N/A 3.3 μg/m3 (14) 18.0
 
May 23, 2019, 1 a.m. 13.0 ppb (12) 2.0 ppb (2) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 27.0 ppb (21) 0.2 ppb (2) N/A 3.0 μg/m3 (12) 21.0
 
May 23, 2019, midnight 12.0 ppb (11) 3.0 ppb (3) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 29.0 ppb (22) 0.2 ppb (2) N/A 2.3 μg/m3 (10) 22.0
 
May 22, 2019, 11 p.m. 14.0 ppb (13) 4.0 ppb (4) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 31.0 ppb (24) 0.2 ppb (2) N/A 2.0 μg/m3 (8) 24.0
 
May 22, 2019, 10 p.m. 13.0 ppb (12) 4.0 ppb (4) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 32.0 ppb (25) 0.1 ppb (1) N/A 1.6 μg/m3 (7) 25.0
 
May 22, 2019, 9 p.m. 13.0 ppb (12) 5.0 ppb (5) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 33.0 ppb (25) 0.2 ppb (2) N/A 1.7 μg/m3 (7) 25.0
 
May 22, 2019, 8 p.m. 14.0 ppb (13) 3.0 ppb (3) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 31.0 ppb (24) 0.2 ppb (2) N/A 1.9 μg/m3 (8) 24.0
 
May 22, 2019, 7 p.m. 15.0 ppb (14) 4.0 ppb (4) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 32.0 ppb (25) 0.2 ppb (2) N/A 3.0 μg/m3 (12) 25.0
 
May 22, 2019, 6 p.m. 12.0 ppb (11) 3.0 ppb (3) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 37.0 ppb (28) 0.1 ppb (1) N/A 1.9 μg/m3 (8) 28.0
 
May 22, 2019, 5 p.m. 17.0 ppb (16) 6.0 ppb (6) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 37.0 ppb (28) 0.2 ppb (2) N/A 2.0 μg/m3 (8) 28.0
 
May 22, 2019, 4 p.m. 12.0 ppb (11) 4.0 ppb (4) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 37.0 ppb (28) 0.1 ppb (1) N/A 2.1 μg/m3 (9) 28.0
 
May 22, 2019, 3 p.m. 6.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 40.0 ppb (31) 0.1 ppb (1) N/A 1.8 μg/m3 (8) 31.0
 
May 22, 2019, 2 p.m. 10.0 ppb (9) 2.0 ppb (2) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 36.0 ppb (28) 0.1 ppb (1) N/A 2.2 μg/m3 (9) 28.0
 
May 22, 2019, 1 p.m. 13.0 ppb (12) 2.0 ppb (2) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 31.0 ppb (24) 0.2 ppb (2) N/A 2.7 μg/m3 (11) 24.0
 
May 22, 2019, noon 11.0 ppb (10) 2.0 ppb (2) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 31.0 ppb (24) 0.1 ppb (1) N/A 3.1 μg/m3 (13) 24.0
 
May 22, 2019, 11 a.m. 11.0 ppb (10) 1.0 ppb (1) N/A 10.0 ppb (9) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 4.6 μg/m3 (19) 19.0
 
May 22, 2019, 10 a.m. 9.0 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 26.0 ppb (20) 0.1 ppb (1) N/A 4.4 μg/m3 (18) 20.0
 
May 22, 2019, 9 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 29.0 ppb (22) 0.1 ppb (1) N/A 4.2 μg/m3 (18) 22.0
 
May 22, 2019, 8 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 26.0 ppb (20) 0.1 ppb (1) N/A 3.5 μg/m3 (15) 20.0
 
May 22, 2019, 7 a.m. 9.0 ppb (8) 0.0 ppb (0) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 24.0 ppb (18) 0.1 ppb (1) N/A 3.1 μg/m3 (13) 18.0
 
May 22, 2019, 6 a.m. 15.0 ppb (14) 1.0 ppb (1) N/A 14.0 ppb (13) N/A 1.0 ppb (1) 16.0 ppb (12) 0.2 ppb (2) N/A 2.6 μg/m3 (11) 14.0
 
May 22, 2019, 5 a.m. 20.0 ppb (19) 1.0 ppb (1) N/A 19.0 ppb (18) N/A 1.0 ppb (1) 13.0 ppb (10) 0.3 ppb (3) N/A 3.2 μg/m3 (13) 19.0
 
May 22, 2019, 4 a.m. 22.0 ppb (20) 2.0 ppb (2) N/A 20.0 ppb (19) N/A 1.0 ppb (1) 15.0 ppb (12) 0.3 ppb (3) N/A 3.0 μg/m3 (12) 20.0
 
May 22, 2019, 3 a.m. 17.0 ppb (16) 1.0 ppb (1) N/A 16.0 ppb (15) N/A 1.0 ppb (1) 24.0 ppb (18) 0.2 ppb (2) N/A 2.6 μg/m3 (11) 18.0
 
May 22, 2019, 2 a.m. 11.0 ppb (10) 1.0 ppb (1) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 39.0 ppb (30) 0.2 ppb (2) N/A 2.0 μg/m3 (8) 30.0
 
May 22, 2019, 1 a.m. 9.0 ppb (8) 1.0 ppb (1) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 44.0 ppb (34) 0.2 ppb (2) N/A 1.9 μg/m3 (8) 34.0
 
May 22, 2019, midnight 12.0 ppb (11) 2.0 ppb (2) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 43.0 ppb (33) 0.2 ppb (2) N/A 2.1 μg/m3 (9) 33.0
 
May 21, 2019, 11 p.m. 14.0 ppb (13) 3.0 ppb (3) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 41.0 ppb (32) 0.2 ppb (2) N/A 2.2 μg/m3 (9) 32.0
 
May 21, 2019, 10 p.m. 7.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 48.0 ppb (37) 0.1 ppb (1) N/A 2.4 μg/m3 (10) 37.0
 
May 21, 2019, 9 p.m. 10.0 ppb (9) 1.0 ppb (1) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 45.0 ppb (35) 0.1 ppb (1) N/A 2.8 μg/m3 (12) 35.0
 
May 21, 2019, 8 p.m. 7.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 43.0 ppb (33) 0.1 ppb (1) N/A 3.2 μg/m3 (13) 33.0
 
May 21, 2019, 7 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 42.0 ppb (32) 0.1 ppb (1) N/A 3.4 μg/m3 (14) 32.0
 
May 21, 2019, 6 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 40.0 ppb (31) 0.1 ppb (1) N/A 2.5 μg/m3 (10) 31.0
 
May 21, 2019, 5 p.m. 6.0 ppb (6) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 45.0 ppb (35) 0.1 ppb (1) N/A 1.8 μg/m3 (8) 35.0
 
May 21, 2019, 4 p.m. 6.0 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 46.0 ppb (35) 0.1 ppb (1) N/A 1.6 μg/m3 (7) 35.0
 
May 21, 2019, 3 p.m. 10.0 ppb (9) 4.0 ppb (4) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 41.0 ppb (32) 0.1 ppb (1) N/A 2.1 μg/m3 (9) 32.0
 
May 21, 2019, 2 p.m. 14.0 ppb (13) 3.0 ppb (3) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 31.0 ppb (24) 0.2 ppb (2) N/A 2.8 μg/m3 (12) 24.0
 
May 21, 2019, 1 p.m. 22.0 ppb (20) 7.0 ppb (6) N/A 14.0 ppb (13) N/A 1.0 ppb (1) 26.0 ppb (20) 0.2 ppb (2) N/A 4.1 μg/m3 (17) 20.0
 
May 21, 2019, noon 19.0 ppb (18) 3.0 ppb (3) N/A 16.0 ppb (15) N/A 1.0 ppb (1) 23.0 ppb (18) 0.2 ppb (2) N/A 3.3 μg/m3 (14) 18.0
 
May 21, 2019, 11 a.m. 11.0 ppb (10) 1.0 ppb (1) N/A 10.0 ppb (9) N/A N/A 23.0 ppb (18) 0.1 ppb (1) N/A 3.2 μg/m3 (13) 18.0
 
May 21, 2019, 10 a.m. 7.0 ppb (6) 1.0 ppb (1) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 26.0 ppb (20) 0.1 ppb (1) N/A 3.2 μg/m3 (13) 20.0
 
May 21, 2019, 9 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 37.0 ppb (28) 0.1 ppb (1) N/A 3.3 μg/m3 (14) 28.0
 
May 21, 2019, 8 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 44.0 ppb (34) 0.1 ppb (1) N/A 3.3 μg/m3 (14) 34.0
 
May 21, 2019, 7 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 37.0 ppb (28) 0.1 ppb (1) N/A 2.5 μg/m3 (10) 28.0
 
May 21, 2019, 6 a.m. 8.0 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 33.0 ppb (25) 0.1 ppb (1) N/A 2.2 μg/m3 (9) 25.0
 
May 21, 2019, 5 a.m. 10.0 ppb (9) 1.0 ppb (1) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 34.0 ppb (26) 0.1 ppb (1) N/A 2.5 μg/m3 (10) 26.0
 
May 21, 2019, 4 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 41.0 ppb (32) 0.1 ppb (1) N/A 2.5 μg/m3 (10) 32.0
 
May 21, 2019, 3 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 44.0 ppb (34) 0.1 ppb (1) N/A 2.3 μg/m3 (10) 34.0
 
May 21, 2019, 2 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 46.0 ppb (35) 0.1 ppb (1) N/A 2.0 μg/m3 (8) 35.0
 
May 21, 2019, 1 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 50.0 ppb (38) 0.1 ppb (1) N/A 1.7 μg/m3 (7) 38.0
 
May 21, 2019, midnight 3.0 ppb (3) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 51.0 ppb (39) 0.1 ppb (1) N/A 1.7 μg/m3 (7) 39.0
 
May 20, 2019, 11 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 53.0 ppb (41) 0.1 ppb (1) N/A 1.7 μg/m3 (7) 41.0
 
May 20, 2019, 10 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 57.0 ppb (44) 0.1 ppb (1) N/A 1.7 μg/m3 (7) 44.0
 
May 20, 2019, 9 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 56.0 ppb (43) 0.1 ppb (1) N/A 1.8 μg/m3 (8) 43.0
 
May 20, 2019, 8 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 50.0 ppb (38) 0.1 ppb (1) N/A 2.0 μg/m3 (8) 38.0
 
May 20, 2019, 7 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 51.0 ppb (39) 0.1 ppb (1) N/A 2.1 μg/m3 (9) 39.0
 
May 20, 2019, 6 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 59.0 ppb (45) 0.1 ppb (1) N/A 1.8 μg/m3 (8) 45.0
 
May 20, 2019, 5 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 59.0 ppb (45) 0.1 ppb (1) N/A 1.7 μg/m3 (7) 45.0
 
May 20, 2019, 4 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) 0.1 ppb (1) N/A 1.8 μg/m3 (8) 42.0
 
May 20, 2019, 3 p.m. 15.0 ppb (14) 5.0 ppb (5) N/A 10.0 ppb (9) N/A 1.0 ppb (1) 41.0 ppb (32) 0.2 ppb (2) N/A 2.2 μg/m3 (9) 32.0
 
May 20, 2019, 2 p.m. 15.0 ppb (14) 4.0 ppb (4) N/A 11.0 ppb (10) N/A 1.0 ppb (1) 38.0 ppb (29) 0.2 ppb (2) N/A 2.1 μg/m3 (9) 29.0
 
May 20, 2019, 1 p.m. 11.0 ppb (10) 2.0 ppb (2) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 34.0 ppb (26) 0.2 ppb (2) N/A 2.2 μg/m3 (9) 26.0
 
May 20, 2019, noon 14.0 ppb (13) 2.0 ppb (2) N/A 12.0 ppb (11) N/A 1.0 ppb (1) 28.0 ppb (22) 0.2 ppb (2) N/A 3.1 μg/m3 (13) 22.0
 
May 20, 2019, 11 a.m. 8.0 ppb (7) 1.0 ppb (1) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 34.0 ppb (26) N/A N/A 2.7 μg/m3 (11) 26.0
 
May 20, 2019, 10 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 40.0 ppb (31) 0.1 ppb (1) N/A 2.8 μg/m3 (12) 31.0
 
May 20, 2019, 9 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 40.0 ppb (31) 0.1 ppb (1) N/A 2.9 μg/m3 (12) 31.0
 
May 20, 2019, 8 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 50.0 ppb (38) 0.1 ppb (1) N/A 3.1 μg/m3 (13) 38.0
 
May 20, 2019, 7 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 51.0 ppb (39) 0.1 ppb (1) N/A 2.6 μg/m3 (11) 39.0
 
May 20, 2019, 6 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 55.0 ppb (42) 0.1 ppb (1) N/A 1.7 μg/m3 (7) 42.0
 
May 20, 2019, 5 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 53.0 ppb (41) 0.1 ppb (1) N/A 1.7 μg/m3 (7) 41.0
 
May 20, 2019, 4 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 56.0 ppb (43) 0.1 ppb (1) N/A 1.8 μg/m3 (8) 43.0
 
May 20, 2019, 3 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 58.0 ppb (45) 0.1 ppb (1) N/A 1.9 μg/m3 (8) 45.0
 
May 20, 2019, 2 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 57.0 ppb (44) 0.1 ppb (1) N/A 2.2 μg/m3 (9) 44.0
 
May 20, 2019, 1 a.m. 4.0 ppb (4) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 54.0 ppb (42) 0.1 ppb (1) N/A 2.5 μg/m3 (10) 42.0
 
May 20, 2019, midnight 4.0 ppb (4) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 56.0 ppb (43) 0.1 ppb (1) N/A 2.8 μg/m3 (12) 43.0
 
May 19, 2019, 11 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 56.0 ppb (43) 0.1 ppb (1) N/A 2.7 μg/m3 (11) 43.0
 
May 19, 2019, 10 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 57.0 ppb (44) 0.1 ppb (1) N/A 3.0 μg/m3 (12) 44.0
 
May 19, 2019, 9 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 57.0 ppb (44) 0.1 ppb (1) N/A 3.7 μg/m3 (15) 44.0
 
May 19, 2019, 8 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 58.0 ppb (45) 0.1 ppb (1) N/A 2.3 μg/m3 (10) 45.0
 
May 19, 2019, 7 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 55.0 ppb (42) 0.1 ppb (1) N/A 1.8 μg/m3 (8) 42.0
 
May 19, 2019, 6 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 53.0 ppb (41) 0.1 ppb (1) N/A 1.7 μg/m3 (7) 41.0
 
May 19, 2019, 5 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 53.0 ppb (41) 0.1 ppb (1) N/A 1.7 μg/m3 (7) 41.0
 
May 19, 2019, 4 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) 0.1 ppb (1) N/A 1.7 μg/m3 (7) 36.0
 
May 19, 2019, 3 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 44.0 ppb (34) 0.1 ppb (1) N/A 1.7 μg/m3 (7) 34.0
 
May 19, 2019, 2 p.m. 2.0 ppb (2) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 43.0 ppb (33) 0.1 ppb (1) N/A 2.1 μg/m3 (9) 33.0
 
May 19, 2019, 1 p.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 43.0 ppb (33) 0.1 ppb (1) N/A 2.7 μg/m3 (11) 33.0
 
May 19, 2019, noon 7.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 30.0 ppb (23) 0.1 ppb (1) N/A 3.1 μg/m3 (13) 23.0
 
May 19, 2019, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 29.0 ppb (22) 0.1 ppb (1) N/A 3.1 μg/m3 (13) 22.0
 
May 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) 0.1 ppb (1) N/A 3.4 μg/m3 (14) 20.0
 
May 19, 2019, 9 a.m. 7.0 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 28.0 ppb (22) 0.1 ppb (1) N/A 3.3 μg/m3 (14) 22.0
 
May 19, 2019, 8 a.m. 6.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 29.0 ppb (22) 0.1 ppb (1) N/A 3.1 μg/m3 (13) 22.0
 
May 19, 2019, 7 a.m. 6.0 ppb (6) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 32.0 ppb (25) 0.1 ppb (1) N/A 2.8 μg/m3 (12) 25.0
 
May 19, 2019, 6 a.m. 14.0 ppb (13) 1.0 ppb (1) N/A 13.0 ppb (12) N/A 1.0 ppb (1) 18.0 ppb (14) 0.2 ppb (2) N/A 3.7 μg/m3 (15) 15.0
 
May 19, 2019, 5 a.m. 9.0 ppb (8) 1.0 ppb (1) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 26.0 ppb (20) 0.2 ppb (2) N/A 3.0 μg/m3 (12) 20.0
 
May 19, 2019, 4 a.m. 6.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 31.0 ppb (24) 0.1 ppb (1) N/A 3.0 μg/m3 (12) 24.0
 
May 19, 2019, 3 a.m. 10.0 ppb (9) 1.0 ppb (1) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 28.0 ppb (22) 0.2 ppb (2) N/A 3.2 μg/m3 (13) 22.0
 
May 19, 2019, 2 a.m. 10.0 ppb (9) 1.0 ppb (1) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 35.0 ppb (27) 0.2 ppb (2) N/A 2.7 μg/m3 (11) 27.0
 
May 19, 2019, 1 a.m. 6.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 42.0 ppb (32) 0.1 ppb (1) N/A 1.9 μg/m3 (8) 32.0
 
May 19, 2019, midnight 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 44.0 ppb (34) 0.1 ppb (1) N/A 1.9 μg/m3 (8) 34.0
 
May 18, 2019, 11 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 44.0 ppb (34) 0.1 ppb (1) N/A 1.7 μg/m3 (7) 34.0
 
May 18, 2019, 10 p.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 45.0 ppb (35) 0.1 ppb (1) N/A 1.7 μg/m3 (7) 35.0
 
May 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) 43.0 ppb (33) 0.1 ppb (1) N/A 1.7 μg/m3 (7) 33.0
 
May 18, 2019, 8 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 44.0 ppb (34) 0.1 ppb (1) N/A 1.7 μg/m3 (7) 34.0
 
May 18, 2019, 7 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 42.0 ppb (32) 0.1 ppb (1) N/A 1.7 μg/m3 (7) 32.0
 
May 18, 2019, 6 p.m. 6.0 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 40.0 ppb (31) 0.1 ppb (1) N/A 2.0 μg/m3 (8) 31.0
 
May 18, 2019, 5 p.m. 5.0 ppb (5) 2.0 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 40.0 ppb (31) 0.1 ppb (1) N/A 2.0 μg/m3 (8) 31.0
 
May 18, 2019, 4 p.m. 6.0 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 38.0 ppb (29) 0.1 ppb (1) N/A 1.9 μg/m3 (8) 29.0
 
May 18, 2019, 3 p.m. 6.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 35.0 ppb (27) 0.1 ppb (1) N/A 1.8 μg/m3 (8) 27.0
 
May 18, 2019, 2 p.m. 6.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 34.0 ppb (26) 0.1 ppb (1) N/A 1.8 μg/m3 (8) 26.0
 
May 18, 2019, 1 p.m. 8.0 ppb (7) 2.0 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 33.0 ppb (25) 0.1 ppb (1) N/A 1.7 μg/m3 (7) 25.0
 
May 18, 2019, noon 6.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 33.0 ppb (25) 0.1 ppb (1) N/A 1.7 μg/m3 (7) 25.0
 
May 18, 2019, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 36.0 ppb (28) 0.1 ppb (1) N/A 1.8 μg/m3 (8) 28.0
 
May 18, 2019, 10 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 37.0 ppb (28) 0.1 ppb (1) N/A 1.9 μg/m3 (8) 28.0
 
May 18, 2019, 9 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) 0.1 ppb (1) N/A 1.8 μg/m3 (8) 27.0
 
May 18, 2019, 8 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 34.0 ppb (26) 0.1 ppb (1) N/A 2.2 μg/m3 (9) 26.0
 
May 18, 2019, 7 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 38.0 ppb (29) 0.1 ppb (1) N/A 2.1 μg/m3 (9) 29.0
 
May 18, 2019, 6 a.m. 7.0 ppb (6) 1.0 ppb (1) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 30.0 ppb (23) 0.1 ppb (1) N/A 2.1 μg/m3 (9) 23.0
 
May 18, 2019, 5 a.m. 7.0 ppb (6) 1.0 ppb (1) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 35.0 ppb (27) 0.1 ppb (1) N/A 2.1 μg/m3 (9) 27.0
 
May 18, 2019, 4 a.m. 8.0 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 36.0 ppb (28) 0.1 ppb (1) N/A 2.5 μg/m3 (10) 28.0
 
May 18, 2019, 3 a.m. 6.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 37.0 ppb (28) 0.1 ppb (1) N/A 2.7 μg/m3 (11) 28.0
 
May 18, 2019, 2 a.m. 10.0 ppb (9) 2.0 ppb (2) N/A 8.0 ppb (7) N/A 1.0 ppb (1) 35.0 ppb (27) 0.2 ppb (2) N/A 3.2 μg/m3 (13) 27.0
 
May 18, 2019, 1 a.m. 7.0 ppb (6) 1.0 ppb (1) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 38.0 ppb (29) 0.2 ppb (2) N/A 2.4 μg/m3 (10) 29.0
 
May 18, 2019, midnight 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 47.0 ppb (36) 0.1 ppb (1) N/A 1.6 μg/m3 (7) 36.0
 
May 17, 2019, 11 p.m. 7.0 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 45.0 ppb (35) 0.1 ppb (1) N/A 1.7 μg/m3 (7) 35.0
 
May 17, 2019, 10 p.m. 7.0 ppb (6) 3.0 ppb (3) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 43.0 ppb (33) 0.1 ppb (1) N/A 1.6 μg/m3 (7) 33.0
 
May 17, 2019, 9 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 45.0 ppb (35) 0.1 ppb (1) N/A 1.4 μg/m3 (6) 35.0
 
May 17, 2019, 8 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 46.0 ppb (35) 0.1 ppb (1) N/A 1.4 μg/m3 (6) 35.0
 
May 17, 2019, 7 p.m. 8.0 ppb (7) 3.0 ppb (3) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 48.0 ppb (37) 0.1 ppb (1) N/A 1.6 μg/m3 (7) 37.0
 
May 17, 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) 0.1 ppb (1) N/A 1.4 μg/m3 (6) 38.0
 
May 17, 2019, 5 p.m. 6.0 ppb (6) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 52.0 ppb (40) 0.1 ppb (1) N/A 1.9 μg/m3 (8) 40.0
 
May 17, 2019, 4 p.m. 9.0 ppb (8) 1.0 ppb (1) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 50.0 ppb (38) 0.1 ppb (1) N/A 2.8 μg/m3 (12) 38.0
 
May 17, 2019, 3 p.m. 8.0 ppb (7) 1.0 ppb (1) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 49.0 ppb (38) 0.1 ppb (1) N/A 3.4 μg/m3 (14) 38.0
 
May 17, 2019, 2 p.m. 6.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 51.0 ppb (39) 0.1 ppb (1) N/A 3.9 μg/m3 (16) 39.0
 
May 17, 2019, 1 p.m. 6.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 50.0 ppb (38) 0.1 ppb (1) N/A 3.7 μg/m3 (15) 38.0
 
May 17, 2019, noon 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 48.0 ppb (37) 0.1 ppb (1) N/A 3.6 μg/m3 (15) 37.0
 
May 17, 2019, 11 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 48.0 ppb (37) 0.1 ppb (1) N/A 3.9 μg/m3 (16) 37.0
 
May 17, 2019, 10 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 52.0 ppb (40) 0.1 ppb (1) N/A 4.0 μg/m3 (17) 40.0
 
May 17, 2019, 9 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 45.0 ppb (35) 0.1 ppb (1) N/A 4.4 μg/m3 (18) 35.0
 
May 17, 2019, 8 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 50.0 ppb (38) 0.1 ppb (1) N/A 4.5 μg/m3 (19) 38.0
 
May 17, 2019, 7 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 57.0 ppb (44) 0.1 ppb (1) N/A 4.2 μg/m3 (18) 44.0
 
May 17, 2019, 6 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 63.0 ppb (48) 0.1 ppb (1) N/A 4.1 μg/m3 (17) 48.0
 
May 17, 2019, 5 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 55.0 ppb (42) 0.1 ppb (1) N/A 4.5 μg/m3 (19) 42.0
 
May 17, 2019, 4 a.m. 5.0 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 37.0 ppb (28) 0.1 ppb (1) N/A 6.5 μg/m3 (27) 28.0
 
May 17, 2019, 3 a.m. 6.0 ppb (6) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 35.0 ppb (27) 0.1 ppb (1) N/A 4.7 μg/m3 (20) 27.0
 
May 17, 2019, 2 a.m. 8.0 ppb (7) 1.0 ppb (1) N/A 7.0 ppb (6) N/A 1.0 ppb (1) 35.0 ppb (27) 0.1 ppb (1) N/A 2.4 μg/m3 (10) 27.0