ID: 2646

AQSQID: 490471004

Site Name: Vernal #4

Added: April 21, 2020, 6:24 p.m.

Updated: July 15, 2020, 5:36 p.m.

Location: Vernal (1700 W St), UT

Reporting: True, Located: True

Current AQI: 34.0

Vernal (1700 W St) UT, US: 40.464722, -109.56083

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 15, 2020, 4 p.m. 2.2 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (34) N/A N/A 4.1 μg/m3 (17) 34.0
 
July 15, 2020, 3 p.m. 2.2 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (33) N/A N/A 4.6 μg/m3 (19) 33.0
 
July 15, 2020, 2 p.m. 1.4 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (28) N/A N/A 9.9 μg/m3 (41) 41.0
 
July 15, 2020, 1 p.m. 2.6 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (23) N/A N/A 3.4 μg/m3 (14) 23.0
 
July 15, 2020, noon 1.9 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 31.0 ppb (24) N/A N/A 2.5 μg/m3 (10) 24.0
 
July 15, 2020, 11 a.m. 2.0 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (26) N/A N/A 12.6 μg/m3 (51) 51.0
 
July 15, 2020, 10 a.m. 1.7 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (30) N/A N/A 2.2 μg/m3 (9) 30.0
 
July 15, 2020, 9 a.m. 1.2 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (32) N/A N/A 2.4 μg/m3 (10) 32.0
 
July 15, 2020, 8 a.m. 0.7 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) N/A N/A 2.2 μg/m3 (9) 35.0
 
July 15, 2020, 7 a.m. 0.8 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (34) N/A N/A 2.6 μg/m3 (11) 34.0
 
July 15, 2020, 6 a.m. 0.7 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) N/A N/A 2.8 μg/m3 (12) 35.0
 
July 15, 2020, 5 a.m. 0.8 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (33) N/A N/A 4.3 μg/m3 (18) 33.0
 
July 15, 2020, 4 a.m. 2.2 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (32) N/A N/A 4.7 μg/m3 (20) 32.0
 
July 15, 2020, 3 a.m. 1.3 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (34) N/A N/A 6.0 μg/m3 (25) 34.0
 
July 15, 2020, 2 a.m. 1.6 ppb (1) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (36) N/A N/A 5.7 μg/m3 (24) 36.0
 
July 15, 2020, 1 a.m. 0.9 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 50.0 ppb (38) N/A N/A 26.5 μg/m3 (81) 81.0
 
July 15, 2020, midnight 0.6 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) N/A N/A 30.7 μg/m3 (90) 90.0
 
July 14, 2020, 11 p.m. 0.7 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) N/A N/A 9.0 μg/m3 (38) 38.0
 
July 14, 2020, 10 p.m. 0.9 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) N/A N/A 10.8 μg/m3 (45) 45.0
 
July 14, 2020, 9 p.m. 1.1 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) N/A N/A 9.0 μg/m3 (38) 38.0
 
July 14, 2020, 8 p.m. 1.2 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
July 14, 2020, 7 p.m. 1.4 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 7.0 μg/m3 (29) 29.0
 
July 14, 2020, 6 p.m. 1.8 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) N/A N/A 6.1 μg/m3 (25) 35.0
 
July 14, 2020, 5 p.m. 1.9 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 48.0 ppb (37) N/A N/A 7.1 μg/m3 (30) 37.0
 
July 14, 2020, 4 p.m. 2.2 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (35) N/A N/A 8.4 μg/m3 (35) 35.0
 
July 14, 2020, 3 p.m. 1.1 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 36.0 ppb (28) N/A N/A 8.7 μg/m3 (36) 36.0
 
July 14, 2020, 2 p.m. 1.4 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 33.0 ppb (25) N/A N/A 24.6 μg/m3 (77) 77.0
 
July 14, 2020, 1 p.m. 3.5 ppb (3) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 29.0 ppb (22) N/A N/A 6.4 μg/m3 (27) 27.0
 
July 14, 2020, noon 1.6 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 30.0 ppb (23) N/A N/A 4.4 μg/m3 (18) 23.0
 
July 14, 2020, 11 a.m. 1.6 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 30.0 ppb (23) N/A N/A 13.2 μg/m3 (53) 53.0
 
July 14, 2020, 10 a.m. 1.5 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 30.0 ppb (23) N/A N/A 3.7 μg/m3 (15) 23.0
 
July 14, 2020, 9 a.m. 1.3 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 31.0 ppb (24) N/A N/A 3.8 μg/m3 (16) 24.0
 
July 14, 2020, 8 a.m. 1.8 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (23) N/A N/A 4.4 μg/m3 (18) 23.0
 
July 14, 2020, 7 a.m. 2.4 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 32.0 ppb (25) N/A N/A 3.9 μg/m3 (16) 25.0
 
July 14, 2020, 6 a.m. 2.4 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (23) N/A N/A 3.8 μg/m3 (16) 23.0
 
July 14, 2020, 5 a.m. 1.4 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 36.0 ppb (28) N/A N/A 3.2 μg/m3 (13) 28.0
 
July 14, 2020, 4 a.m. 2.2 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (30) N/A N/A 3.9 μg/m3 (16) 30.0
 
July 14, 2020, 3 a.m. 1.8 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (35) N/A N/A 3.4 μg/m3 (14) 35.0
 
July 14, 2020, 2 a.m. 1.7 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (35) N/A N/A 3.2 μg/m3 (13) 35.0
 
July 14, 2020, 1 a.m. 0.5 ppb (0) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 50.0 ppb (38) N/A N/A 2.9 μg/m3 (12) 38.0
 
July 14, 2020, midnight 0.5 ppb (0) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 50.0 ppb (38) N/A N/A 2.7 μg/m3 (11) 38.0
 
July 13, 2020, 11 p.m. 0.8 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 50.0 ppb (38) N/A N/A 3.1 μg/m3 (13) 38.0
 
July 13, 2020, 10 p.m. 0.9 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 51.0 ppb (39) N/A N/A 3.5 μg/m3 (15) 39.0
 
July 13, 2020, 9 p.m. 0.7 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (38) N/A N/A 3.9 μg/m3 (16) 38.0
 
July 13, 2020, 8 p.m. 1.0 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (38) N/A N/A 3.0 μg/m3 (12) 38.0
 
July 13, 2020, 7 p.m. 1.4 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (38) N/A N/A 3.1 μg/m3 (13) 38.0
 
July 13, 2020, 6 p.m. 1.5 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) N/A N/A 3.1 μg/m3 (13) 36.0
 
July 13, 2020, 5 p.m. 1.7 ppb (2) 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (32) N/A N/A 3.2 μg/m3 (13) 32.0
 
July 13, 2020, 4 p.m. 3.9 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 41.0 ppb (32) N/A N/A 3.1 μg/m3 (13) 32.0
 
July 13, 2020, 3 p.m. 2.3 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (32) N/A N/A 3.2 μg/m3 (13) 32.0
 
July 13, 2020, 2 p.m. 2.0 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (25) N/A N/A 13.2 μg/m3 (53) 53.0
 
July 13, 2020, 1 p.m. 2.7 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 27.0 ppb (21) N/A N/A 3.1 μg/m3 (13) 21.0
 
July 13, 2020, noon 4.0 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 25.0 ppb (19) N/A N/A 3.7 μg/m3 (15) 19.0
 
July 13, 2020, 11 a.m. 2.1 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (25) N/A N/A 19.1 μg/m3 (65) 65.0
 
July 13, 2020, 10 a.m. 1.4 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 34.0 ppb (26) N/A N/A 12.1 μg/m3 (50) 50.0
 
July 13, 2020, 9 a.m. 1.1 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (29) N/A N/A 2.2 μg/m3 (9) 29.0
 
July 13, 2020, 8 a.m. 1.5 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 34.0 ppb (26) N/A N/A 1.6 μg/m3 (7) 26.0
 
July 13, 2020, 7 a.m. 1.1 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (29) N/A N/A 1.6 μg/m3 (7) 29.0
 
July 13, 2020, 6 a.m. 1.1 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (29) N/A N/A 1.8 μg/m3 (8) 29.0
 
July 13, 2020, 5 a.m. 2.4 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (27) N/A N/A 1.8 μg/m3 (8) 27.0
 
July 13, 2020, 4 a.m. 2.7 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (27) N/A N/A 2.1 μg/m3 (9) 27.0
 
July 13, 2020, 3 a.m. 3.5 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (28) N/A N/A 2.2 μg/m3 (9) 28.0
 
July 13, 2020, 2 a.m. 3.3 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 2.0 μg/m3 (8) 8.0
 
July 13, 2020, 1 a.m. 3.1 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 88.0 ppb (69) N/A N/A 1.9 μg/m3 (8) 69.0
 
July 13, 2020, midnight 2.8 ppb (3) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 1.7 μg/m3 (7) 7.0
 
July 12, 2020, 11 p.m. 2.2 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 1.2 μg/m3 (5) 5.0
 
July 12, 2020, 10 p.m. 2.5 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 20.0 ppb (15) N/A N/A 1.3 μg/m3 (5) 15.0
 
July 12, 2020, 9 p.m. 2.1 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 2.9 μg/m3 (12) 12.0
 
July 12, 2020, 8 p.m. 1.4 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 4.2 μg/m3 (18) 18.0
 
July 12, 2020, 7 p.m. 1.7 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
July 12, 2020, 6 p.m. 2.3 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 6.4 μg/m3 (27) 27.0
 
July 12, 2020, 5 p.m. 2.5 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 3.5 μg/m3 (15) 15.0
 
July 12, 2020, 4 p.m. 2.9 ppb (3) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 22.0 ppb (17) N/A N/A 5.5 μg/m3 (23) 23.0
 
July 12, 2020, 3 p.m. 2.6 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 88.0 ppb (69) N/A N/A 6.6 μg/m3 (28) 69.0
 
July 12, 2020, 2 p.m. 2.2 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 74.0 ppb (57) N/A N/A 5.0 μg/m3 (21) 57.0
 
July 12, 2020, 1 p.m. 1.2 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 4.2 μg/m3 (18) 18.0
 
July 12, 2020, noon 1.1 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 4.4 μg/m3 (18) 18.0
 
July 12, 2020, 11 a.m. 0.9 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
July 12, 2020, 10 a.m. 0.9 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 65.0 ppb (50) N/A N/A 2.6 μg/m3 (11) 50.0
 
July 12, 2020, 9 a.m. 1.0 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (32) N/A N/A 3.4 μg/m3 (14) 32.0
 
July 12, 2020, 8 a.m. 2.6 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (28) N/A N/A 7.5 μg/m3 (31) 31.0
 
July 12, 2020, 7 a.m. 1.1 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) N/A N/A 4.4 μg/m3 (18) 37.0
 
July 12, 2020, 6 a.m. 1.2 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) N/A N/A 3.2 μg/m3 (13) 37.0
 
July 12, 2020, 5 a.m. 1.0 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) N/A N/A 4.1 μg/m3 (17) 35.0
 
July 12, 2020, 4 a.m. 1.3 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (28) N/A N/A 5.9 μg/m3 (25) 28.0
 
July 12, 2020, 3 a.m. 2.4 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (32) N/A N/A 5.5 μg/m3 (23) 32.0
 
July 12, 2020, 2 a.m. 1.9 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 57.0 ppb (44) N/A N/A 4.3 μg/m3 (18) 44.0
 
July 12, 2020, 1 a.m. 1.3 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (38) N/A N/A 4.5 μg/m3 (19) 38.0
 
July 12, 2020, midnight 1.2 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 52.0 ppb (40) N/A N/A 25.9 μg/m3 (80) 80.0
 
July 11, 2020, 11 p.m. 1.2 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 56.0 ppb (43) N/A N/A 11.0 μg/m3 (46) 46.0
 
July 11, 2020, 10 p.m. 1.7 ppb (2) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 55.0 ppb (42) N/A N/A 23.6 μg/m3 (75) 75.0
 
July 11, 2020, 9 p.m. 1.3 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 60.0 ppb (46) N/A N/A 28.4 μg/m3 (85) 85.0
 
July 11, 2020, 8 p.m. 1.4 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 60.0 ppb (46) N/A N/A 11.1 μg/m3 (46) 46.0
 
July 11, 2020, 7 p.m. 1.2 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 57.0 ppb (44) N/A N/A 11.3 μg/m3 (47) 47.0
 
July 11, 2020, 6 p.m. 1.4 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 56.0 ppb (43) N/A N/A 4.7 μg/m3 (20) 43.0
 
July 11, 2020, 5 p.m. 1.7 ppb (2) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 52.0 ppb (40) N/A N/A 3.9 μg/m3 (16) 40.0
 
July 11, 2020, 4 p.m. 2.1 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 49.0 ppb (38) N/A N/A 4.1 μg/m3 (17) 38.0
 
July 11, 2020, 3 p.m. 2.4 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (36) N/A N/A 4.0 μg/m3 (17) 36.0
 
July 11, 2020, 2 p.m. 1.2 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (33) N/A N/A 3.7 μg/m3 (15) 33.0
 
July 11, 2020, 1 p.m. 0.9 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 3.9 μg/m3 (16) 16.0
 
July 11, 2020, noon 0.9 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 3.4 μg/m3 (14) 14.0
 
July 11, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.4 μg/m3 (14) 14.0
 
July 11, 2020, 10 a.m. 0.7 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 3.4 μg/m3 (14) 14.0
 
July 11, 2020, 9 a.m. 0.9 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 3.5 μg/m3 (15) 15.0
 
July 11, 2020, 8 a.m. 1.5 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 4.1 μg/m3 (17) 17.0
 
July 11, 2020, 7 a.m. 2.0 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
July 11, 2020, 6 a.m. 2.6 ppb (2) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 17.0 ppb (13) N/A N/A 8.4 μg/m3 (35) 35.0
 
July 11, 2020, 5 a.m. 4.4 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A N/A 38.0 ppb (29) N/A N/A 6.6 μg/m3 (28) 29.0
 
July 11, 2020, 4 a.m. 6.1 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A N/A 36.0 ppb (28) N/A N/A 8.1 μg/m3 (34) 34.0
 
July 11, 2020, 3 a.m. 5.7 ppb (5) 0.1 ppb (0) N/A 6.0 ppb (6) N/A N/A 37.0 ppb (28) N/A N/A 8.6 μg/m3 (36) 36.0
 
July 11, 2020, 2 a.m. 2.7 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (34) N/A N/A 5.7 μg/m3 (24) 34.0
 
July 11, 2020, 1 a.m. 3.6 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 45.0 ppb (35) N/A N/A 5.4 μg/m3 (23) 35.0
 
July 11, 2020, midnight 2.2 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 52.0 ppb (40) N/A N/A 5.2 μg/m3 (22) 40.0
 
July 10, 2020, 11 p.m. 1.4 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 57.0 ppb (44) N/A N/A 6.2 μg/m3 (26) 44.0
 
July 10, 2020, 10 p.m. 1.1 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 58.0 ppb (45) N/A N/A 7.7 μg/m3 (32) 45.0
 
July 10, 2020, 9 p.m. 1.2 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 60.0 ppb (46) N/A N/A 10.8 μg/m3 (45) 46.0
 
July 10, 2020, 8 p.m. 1.2 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 63.0 ppb (48) N/A N/A 11.3 μg/m3 (47) 48.0
 
July 10, 2020, 7 p.m. 1.6 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 65.0 ppb (50) N/A N/A 13.0 μg/m3 (52) 52.0
 
July 10, 2020, 6 p.m. 2.3 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 62.0 ppb (48) N/A N/A 9.4 μg/m3 (39) 48.0
 
July 10, 2020, 5 p.m. 3.9 ppb (4) 0.5 ppb (0) N/A 3.0 ppb (3) N/A N/A 61.0 ppb (47) N/A N/A 8.1 μg/m3 (34) 47.0
 
July 10, 2020, 4 p.m. 3.9 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 56.0 ppb (43) N/A N/A 7.9 μg/m3 (33) 43.0
 
July 10, 2020, 3 p.m. 3.6 ppb (3) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 49.0 ppb (38) N/A N/A 8.7 μg/m3 (36) 38.0
 
July 10, 2020, 2 p.m. 8.5 ppb (8) 2.0 ppb (2) N/A 7.0 ppb (6) N/A N/A 43.0 ppb (33) N/A N/A 7.3 μg/m3 (30) 33.0
 
July 10, 2020, 1 p.m. 3.2 ppb (3) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 47.0 ppb (36) N/A N/A 6.0 μg/m3 (25) 36.0
 
July 10, 2020, noon 0.9 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 54.0 ppb (42) N/A N/A 5.7 μg/m3 (24) 42.0
 
July 10, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A N/A 5.3 μg/m3 (22) 45.0
 
July 10, 2020, 10 a.m. 0.5 ppb (0) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 58.0 ppb (45) N/A N/A 5.2 μg/m3 (22) 45.0
 
July 10, 2020, 9 a.m. 0.6 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 57.0 ppb (44) N/A N/A 5.0 μg/m3 (21) 44.0
 
July 10, 2020, 8 a.m. 0.7 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 57.0 ppb (44) N/A N/A 5.8 μg/m3 (24) 44.0
 
July 10, 2020, 7 a.m. 1.3 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 53.0 ppb (41) N/A N/A 7.5 μg/m3 (31) 41.0
 
July 10, 2020, 6 a.m. 1.0 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 53.0 ppb (41) N/A N/A 12.1 μg/m3 (50) 50.0
 
July 10, 2020, 5 a.m. 1.2 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 57.0 ppb (44) N/A N/A 8.3 μg/m3 (35) 44.0
 
July 10, 2020, 4 a.m. 1.2 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 56.0 ppb (43) N/A N/A 9.0 μg/m3 (38) 43.0
 
July 10, 2020, 3 a.m. 2.9 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 55.0 ppb (42) N/A N/A 11.5 μg/m3 (48) 48.0
 
July 10, 2020, 2 a.m. 3.2 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A N/A 58.0 ppb (45) N/A N/A 11.7 μg/m3 (49) 49.0
 
July 10, 2020, 1 a.m. 1.9 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 62.0 ppb (48) N/A N/A 13.7 μg/m3 (54) 54.0
 
July 10, 2020, midnight 1.7 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 64.0 ppb (49) N/A N/A 17.3 μg/m3 (61) 61.0
 
July 9, 2020, 11 p.m. 2.1 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 66.0 ppb (51) N/A N/A 18.0 μg/m3 (63) 63.0
 
July 9, 2020, 10 p.m. 1.5 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 67.0 ppb (52) N/A N/A 9.1 μg/m3 (38) 52.0
 
July 9, 2020, 9 p.m. 1.6 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 63.0 ppb (48) N/A N/A 6.5 μg/m3 (27) 48.0
 
July 9, 2020, 8 p.m. 1.9 ppb (2) 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 63.0 ppb (48) N/A N/A 7.6 μg/m3 (32) 48.0
 
July 9, 2020, 7 p.m. 1.8 ppb (2) 0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 60.0 ppb (46) N/A N/A 9.9 μg/m3 (41) 46.0
 
July 9, 2020, 6 p.m. 1.7 ppb (2) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 56.0 ppb (43) N/A N/A 8.0 μg/m3 (33) 43.0
 
July 9, 2020, 5 p.m. 1.4 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 58.0 ppb (45) N/A N/A 8.4 μg/m3 (35) 45.0
 
July 9, 2020, 4 p.m. 2.0 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 55.0 ppb (42) N/A N/A 8.9 μg/m3 (37) 42.0
 
July 9, 2020, 3 p.m. 1.0 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 51.0 ppb (39) N/A N/A 8.0 μg/m3 (33) 39.0
 
July 9, 2020, 2 p.m. 1.0 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (32) N/A N/A 7.3 μg/m3 (30) 32.0
 
July 9, 2020, 1 p.m. 1.5 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (31) N/A N/A 6.6 μg/m3 (28) 31.0
 
July 9, 2020, noon 1.4 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 39.0 ppb (30) N/A N/A 6.7 μg/m3 (28) 30.0
 
July 9, 2020, 11 a.m. 1.3 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (29) N/A N/A 6.8 μg/m3 (28) 29.0
 
July 9, 2020, 10 a.m. 1.5 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 36.0 ppb (28) N/A N/A 7.0 μg/m3 (29) 29.0
 
July 9, 2020, 9 a.m. 1.5 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (31) N/A N/A 7.6 μg/m3 (32) 32.0
 
July 9, 2020, 8 a.m. 1.5 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) N/A N/A 8.3 μg/m3 (35) 35.0
 
July 9, 2020, 7 a.m. 1.1 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 51.0 ppb (39) N/A N/A 8.0 μg/m3 (33) 39.0
 
July 9, 2020, 6 a.m. 0.9 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 54.0 ppb (42) N/A N/A 6.8 μg/m3 (28) 42.0
 
July 9, 2020, 5 a.m. 1.1 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 55.0 ppb (42) N/A N/A 7.0 μg/m3 (29) 42.0
 
July 9, 2020, 4 a.m. 1.9 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 52.0 ppb (40) N/A N/A 7.2 μg/m3 (30) 40.0
 
July 9, 2020, 3 a.m. 1.4 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 52.0 ppb (40) N/A N/A 7.5 μg/m3 (31) 40.0
 
July 9, 2020, 2 a.m. 1.3 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 57.0 ppb (44) N/A N/A 6.2 μg/m3 (26) 44.0
 
July 9, 2020, 1 a.m. 1.2 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 62.0 ppb (48) N/A N/A 5.5 μg/m3 (23) 48.0
 
July 9, 2020, midnight 1.0 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 62.0 ppb (48) N/A N/A 5.7 μg/m3 (24) 48.0
 
July 8, 2020, 11 p.m. 1.3 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 61.0 ppb (47) N/A N/A 5.7 μg/m3 (24) 47.0
 
July 8, 2020, 10 p.m. 0.9 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 59.0 ppb (45) N/A N/A 6.3 μg/m3 (26) 45.0
 
July 8, 2020, 9 p.m. 1.2 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 59.0 ppb (45) N/A N/A 7.8 μg/m3 (32) 45.0
 
July 8, 2020, 8 p.m. 1.4 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 59.0 ppb (45) N/A N/A 8.5 μg/m3 (35) 45.0
 
July 8, 2020, 7 p.m. 1.5 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 57.0 ppb (44) N/A N/A 8.9 μg/m3 (37) 44.0
 
July 8, 2020, 6 p.m. 1.9 ppb (2) 0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A 52.0 ppb (40) N/A N/A 8.9 μg/m3 (37) 40.0
 
July 8, 2020, 5 p.m. 2.2 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 52.0 ppb (40) N/A N/A 8.9 μg/m3 (37) 40.0