ID: 2646

AQSQID: 490471004

Site Name: Vernal #4

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

Updated: May 26, 2022, 8:20 a.m.

Location: Vernal (1700 W St), UT

Reporting: True, Located: True

Current AQI: 38.0

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
May 26, 2022, 6 a.m. 1.5 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (38) N/A N/A 3.2 μg/m3 (14) 38.0
 
May 26, 2022, 5 a.m. 2.1 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (38) N/A N/A 3.7 μg/m3 (16) 38.0
 
May 26, 2022, 4 a.m. 2.3 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (39) N/A N/A 4.2 μg/m3 (18) 39.0
 
May 26, 2022, 3 a.m. 3.2 ppb (4) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (38) N/A N/A 4.4 μg/m3 (19) 38.0
 
May 26, 2022, 2 a.m. 4.8 ppb (5) 0.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 44.0 ppb (41) N/A N/A 5.5 μg/m3 (23) 41.0
 
May 26, 2022, 1 a.m. 2.9 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A N/A 55.0 ppb (51) N/A N/A 3.9 μg/m3 (17) 51.0
 
May 26, 2022, midnight 2.3 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 57.0 ppb (58) N/A N/A 3.3 μg/m3 (14) 58.0
 
May 25, 2022, 11 p.m. 2.2 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 58.0 ppb (61) N/A N/A 3.3 μg/m3 (14) 61.0
 
May 25, 2022, 10 p.m. 1.7 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 59.0 ppb (65) N/A N/A 3.2 μg/m3 (14) 65.0
 
May 25, 2022, 10 p.m. 1.7 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 59.0 ppb (65) N/A N/A 3.2 μg/m3 (14) 65.0
 
May 25, 2022, 9 p.m. 2.1 ppb (2) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 59.0 ppb (65) N/A N/A 3.3 μg/m3 (14) 65.0
 
May 25, 2022, 8 p.m. 1.9 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 59.0 ppb (65) N/A N/A 3.6 μg/m3 (16) 65.0
 
May 25, 2022, 8 p.m. 1.9 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 59.0 ppb (65) N/A N/A 3.6 μg/m3 (16) 65.0
 
May 25, 2022, 7 p.m. 2.0 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 60.0 ppb (68) N/A N/A 3.7 μg/m3 (16) 68.0
 
May 25, 2022, 7 p.m. 2.0 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 60.0 ppb (68) N/A N/A 3.7 μg/m3 (16) 68.0
 
May 25, 2022, 6 p.m. 2.4 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 59.0 ppb (65) N/A N/A 4.0 μg/m3 (17) 65.0
 
May 25, 2022, 6 p.m. 2.4 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 59.0 ppb (65) N/A N/A 4.0 μg/m3 (17) 65.0
 
May 25, 2022, 5 p.m. 2.5 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 56.0 ppb (55) N/A N/A 3.6 μg/m3 (16) 55.0
 
May 25, 2022, 5 p.m. 2.5 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 56.0 ppb (55) N/A N/A 3.6 μg/m3 (16) 55.0
 
May 25, 2022, 4 p.m. 3.4 ppb (4) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 50.0 ppb (47) N/A N/A 3.6 μg/m3 (16) 47.0
 
May 25, 2022, 3 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 46.0 ppb (43) N/A N/A 3.7 μg/m3 (16) 43.0
 
May 25, 2022, 1 p.m. 10.3 ppb (10) 2.4 ppb (3) N/A 8.0 ppb (8) N/A N/A 38.0 ppb (36) N/A N/A 5.3 μg/m3 (23) 36.0
 
May 25, 2022, 9 a.m. 2.0 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (40) N/A N/A 3.6 μg/m3 (16) 40.0
 
May 25, 2022, 5 a.m. 2.3 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (41) N/A N/A 5.4 μg/m3 (23) 41.0
 
May 25, 2022, 4 a.m. 2.9 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (41) N/A N/A 5.7 μg/m3 (24) 41.0
 
May 25, 2022, 1 a.m. 1.0 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 57.0 ppb (58) N/A N/A 6.1 μg/m3 (26) 58.0
 
May 25, 2022, midnight 0.9 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 60.0 ppb (68) N/A N/A 8.8 μg/m3 (37) 68.0
 
May 24, 2022, 9 p.m. 1.3 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 56.0 ppb (55) N/A N/A 3.0 μg/m3 (13) 55.0
 
May 24, 2022, 8 p.m. 1.1 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 57.0 ppb (58) N/A N/A 2.9 μg/m3 (13) 58.0
 
May 24, 2022, 7 p.m. 1.2 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 55.0 ppb (51) N/A N/A 4.4 μg/m3 (19) 51.0
 
May 24, 2022, 6 p.m. 1.2 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 53.0 ppb (50) N/A N/A 4.4 μg/m3 (19) 50.0
 
May 24, 2022, 5 p.m. 1.4 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 51.0 ppb (48) N/A N/A 2.2 μg/m3 (10) 48.0
 
May 24, 2022, 4 p.m. 1.6 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 50.0 ppb (47) N/A N/A 3.9 μg/m3 (17) 47.0
 
May 24, 2022, 3 p.m. 1.6 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (45) N/A N/A 2.6 μg/m3 (11) 45.0
 
May 24, 2022, 2 p.m. 2.1 ppb (2) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (42) N/A N/A 2.3 μg/m3 (10) 42.0
 
May 24, 2022, 1 p.m. 1.6 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (38) N/A N/A 4.7 μg/m3 (20) 38.0
 
May 24, 2022, noon 2.5 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (33) N/A N/A 3.1 μg/m3 (13) 33.0
 
May 24, 2022, 10 a.m. 1.7 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (36) N/A N/A 3.5 μg/m3 (15) 36.0
 
May 24, 2022, 9 a.m. 1.7 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (41) N/A N/A 2.2 μg/m3 (10) 41.0
 
May 24, 2022, 8 a.m. 1.8 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (40) N/A N/A 3.1 μg/m3 (13) 40.0
 
May 24, 2022, 6 a.m. 1.0 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (46) N/A N/A 2.6 μg/m3 (11) 46.0
 
May 24, 2022, 5 a.m. 1.1 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (42) N/A N/A 2.5 μg/m3 (11) 42.0
 
May 24, 2022, 5 a.m. 1.1 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (42) N/A N/A 2.5 μg/m3 (11) 42.0
 
May 24, 2022, 4 a.m. 1.3 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (41) N/A N/A 2.6 μg/m3 (11) 41.0
 
May 24, 2022, 4 a.m. 1.3 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (41) N/A N/A 2.6 μg/m3 (11) 41.0
 
May 24, 2022, 3 a.m. 1.0 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (44) N/A N/A 2.5 μg/m3 (11) 44.0
 
May 24, 2022, 3 a.m. 1.0 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (44) N/A N/A 2.5 μg/m3 (11) 44.0
 
May 24, 2022, 2 a.m. 1.1 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (46) N/A N/A 2.4 μg/m3 (10) 46.0
 
May 24, 2022, 2 a.m. 1.1 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (46) N/A N/A 2.4 μg/m3 (10) 46.0
 
May 24, 2022, 1 a.m. 1.1 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 51.0 ppb (48) N/A N/A 2.7 μg/m3 (12) 48.0
 
May 24, 2022, 1 a.m. 1.1 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 51.0 ppb (48) N/A N/A 2.7 μg/m3 (12) 48.0
 
May 24, 2022, midnight 0.9 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 53.0 ppb (50) N/A N/A 2.0 μg/m3 (9) 50.0
 
May 24, 2022, midnight 0.9 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 53.0 ppb (50) N/A N/A 2.0 μg/m3 (9) 50.0
 
May 23, 2022, 11 p.m. 1.5 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 52.0 ppb (49) N/A N/A 2.2 μg/m3 (10) 49.0
 
May 23, 2022, 11 p.m. 1.5 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 52.0 ppb (49) N/A N/A 2.2 μg/m3 (10) 49.0
 
May 23, 2022, 8 p.m. 0.9 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 53.0 ppb (50) N/A N/A 1.7 μg/m3 (8) 50.0
 
May 23, 2022, 7 p.m. 0.9 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 52.0 ppb (49) N/A N/A 1.6 μg/m3 (7) 49.0
 
May 23, 2022, 6 p.m. 1.0 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 50.0 ppb (47) N/A N/A 1.5 μg/m3 (7) 47.0
 
May 23, 2022, 3 p.m. 1.2 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (45) N/A N/A 1.4 μg/m3 (6) 45.0
 
May 23, 2022, 2 p.m. 1.6 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (44) N/A N/A 1.6 μg/m3 (7) 44.0
 
May 23, 2022, 11 a.m. 3.6 ppb (4) 0.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 38.0 ppb (36) N/A N/A 2.1 μg/m3 (9) 36.0
 
May 23, 2022, 10 a.m. 2.8 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 43.0 ppb (40) N/A N/A 2.2 μg/m3 (10) 40.0
 
May 23, 2022, 10 a.m. 2.8 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 43.0 ppb (40) N/A N/A 2.2 μg/m3 (10) 40.0
 
May 23, 2022, 9 a.m. 1.5 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (43) N/A N/A 2.3 μg/m3 (10) 43.0
 
May 23, 2022, 3 a.m. 1.1 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 52.0 ppb (49) N/A N/A 2.4 μg/m3 (10) 49.0
 
May 23, 2022, 2 a.m. 1.4 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 51.0 ppb (48) N/A N/A 2.3 μg/m3 (10) 48.0
 
May 23, 2022, 1 a.m. 1.5 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 50.0 ppb (47) N/A N/A 2.2 μg/m3 (10) 47.0
 
May 23, 2022, midnight 1.1 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 50.0 ppb (47) N/A N/A 2.5 μg/m3 (11) 47.0
 
May 22, 2022, 11 p.m. 1.2 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 57.0 ppb (58) N/A N/A 2.5 μg/m3 (11) 58.0
 
May 22, 2022, 9 p.m. 1.3 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 55.0 ppb (51) N/A N/A 2.2 μg/m3 (10) 51.0
 
May 22, 2022, 8 p.m. 1.1 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 55.0 ppb (51) N/A N/A 1.8 μg/m3 (8) 51.0
 
May 22, 2022, 7 p.m. 0.9 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 54.0 ppb (50) N/A N/A 1.4 μg/m3 (6) 50.0
 
May 22, 2022, 6 p.m. 1.3 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 50.0 ppb (47) N/A N/A 1.7 μg/m3 (8) 47.0
 
May 22, 2022, 5 p.m. 1.7 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (44) N/A N/A 1.8 μg/m3 (8) 44.0
 
May 22, 2022, 4 p.m. 1.9 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (41) N/A N/A 1.8 μg/m3 (8) 41.0
 
May 22, 2022, 3 p.m. 2.5 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (37) N/A N/A 3.4 μg/m3 (15) 37.0
 
May 22, 2022, 2 p.m. 2.6 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (35) N/A N/A 3.4 μg/m3 (15) 35.0
 
May 22, 2022, 1 p.m. 1.8 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A 35.0 ppb (33) N/A N/A 1.7 μg/m3 (8) 33.0
 
May 22, 2022, 1 p.m. 1.8 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A 35.0 ppb (33) N/A N/A 1.7 μg/m3 (8) 33.0
 
May 22, 2022, noon 2.5 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (31) N/A N/A 1.4 μg/m3 (6) 31.0
 
May 22, 2022, 11 a.m. 3.2 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 34.0 ppb (32) N/A N/A 1.4 μg/m3 (6) 32.0
 
May 22, 2022, 10 a.m. 2.4 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (32) N/A N/A 1.4 μg/m3 (6) 32.0
 
May 22, 2022, 9 a.m. 1.5 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 36.0 ppb (34) N/A N/A 1.3 μg/m3 (6) 34.0
 
May 22, 2022, 8 a.m. 1.8 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (33) N/A N/A 1.5 μg/m3 (7) 33.0
 
May 22, 2022, 7 a.m. 1.2 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (35) N/A N/A 1.7 μg/m3 (8) 35.0
 
May 22, 2022, 5 a.m. 1.3 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (36) N/A N/A 3.7 μg/m3 (16) 36.0
 
May 22, 2022, 3 a.m. 2.7 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (32) N/A N/A 3.0 μg/m3 (13) 32.0
 
May 22, 2022, 2 a.m. 2.5 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (39) N/A N/A 4.4 μg/m3 (19) 39.0
 
May 22, 2022, 1 a.m. 0.9 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (46) N/A N/A 1.4 μg/m3 (6) 46.0
 
May 22, 2022, midnight 0.9 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (45) N/A N/A 1.4 μg/m3 (6) 45.0
 
May 21, 2022, 11 p.m. 0.8 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (44) N/A N/A 1.4 μg/m3 (6) 44.0
 
May 21, 2022, 10 p.m. 0.8 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (43) N/A N/A 3.5 μg/m3 (15) 43.0
 
May 21, 2022, 9 p.m. 0.8 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (42) N/A N/A 2.1 μg/m3 (9) 42.0
 
May 21, 2022, 8 p.m. 0.9 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (41) N/A N/A 3.0 μg/m3 (13) 41.0
 
May 21, 2022, 7 p.m. 1.3 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (41) N/A N/A 3.5 μg/m3 (15) 41.0
 
May 21, 2022, 6 p.m. 1.0 ppb (1) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (41) N/A N/A 2.5 μg/m3 (11) 41.0
 
May 21, 2022, 5 p.m. 0.9 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (40) N/A N/A 4.7 μg/m3 (20) 40.0
 
May 21, 2022, 4 p.m. 0.9 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (40) N/A N/A 2.3 μg/m3 (10) 40.0
 
May 21, 2022, 3 p.m. 1.1 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (40) N/A N/A 2.0 μg/m3 (9) 40.0
 
May 21, 2022, 2 p.m. 1.1 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) N/A N/A 1.8 μg/m3 (8) 39.0
 
May 21, 2022, 1 p.m. 1.1 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (38) N/A N/A 2.0 μg/m3 (9) 38.0
 
May 21, 2022, 1 p.m. 1.1 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (38) N/A N/A 2.0 μg/m3 (9) 38.0
 
May 21, 2022, noon 1.3 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 39.0 ppb (37) N/A N/A 2.2 μg/m3 (10) 37.0
 
May 21, 2022, 10 a.m. 1.2 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (36) N/A N/A 2.2 μg/m3 (10) 36.0
 
May 21, 2022, 9 a.m. 1.1 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (36) N/A N/A 2.1 μg/m3 (9) 36.0
 
May 21, 2022, 8 a.m. 1.1 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (35) N/A N/A 1.6 μg/m3 (7) 35.0
 
May 21, 2022, 4 a.m. 1.1 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (36) N/A N/A 1.7 μg/m3 (8) 36.0
 
May 21, 2022, 3 a.m. 1.5 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (35) N/A N/A 3.3 μg/m3 (14) 35.0
 
May 21, 2022, 2 a.m. 1.3 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (35) N/A N/A 1.8 μg/m3 (8) 35.0
 
May 21, 2022, 1 a.m. 1.1 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (36) N/A N/A 1.6 μg/m3 (7) 36.0
 
May 21, 2022, midnight 0.9 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (38) N/A N/A 1.0 μg/m3 (5) 38.0
 
May 20, 2022, 11 p.m. 0.9 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) N/A N/A 1.0 μg/m3 (5) 39.0
 
May 20, 2022, 10 p.m. 0.9 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (40) N/A N/A 1.2 μg/m3 (5) 40.0
 
May 20, 2022, 9 p.m. 0.8 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (42) N/A N/A 1.4 μg/m3 (6) 42.0
 
May 20, 2022, 7 p.m. 1.2 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (46) N/A N/A 3.4 μg/m3 (15) 46.0
 
May 20, 2022, 6 p.m. 1.0 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 50.0 ppb (47) N/A N/A 2.9 μg/m3 (13) 47.0
 
May 20, 2022, 5 p.m. 1.0 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (45) N/A N/A 2.9 μg/m3 (13) 45.0
 
May 20, 2022, 4 p.m. 2.6 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 49.0 ppb (46) N/A N/A 4.5 μg/m3 (19) 46.0
 
May 20, 2022, 3 p.m. 3.4 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 45.0 ppb (42) N/A N/A 5.2 μg/m3 (22) 42.0
 
May 20, 2022, 2 p.m. 3.2 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 47.0 ppb (44) N/A N/A 5.7 μg/m3 (24) 44.0
 
May 20, 2022, 1 p.m. 2.7 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (44) N/A N/A 4.9 μg/m3 (21) 44.0
 
May 20, 2022, 11 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A N/A 5.0 μg/m3 (21) 47.0
 
May 20, 2022, 10 a.m. 1.4 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (45) N/A N/A 5.7 μg/m3 (24) 45.0
 
May 20, 2022, 9 a.m. 0.9 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 52.0 ppb (49) N/A N/A 5.4 μg/m3 (23) 49.0
 
May 20, 2022, 8 a.m. 0.9 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (46) N/A N/A 5.9 μg/m3 (25) 46.0
 
May 20, 2022, 7 a.m. 1.2 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) N/A N/A 7.7 μg/m3 (33) 39.0
 
May 20, 2022, 6 a.m. 1.0 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (38) N/A N/A 6.8 μg/m3 (29) 38.0
 
May 20, 2022, 5 a.m. 1.1 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (38) N/A N/A 7.5 μg/m3 (32) 38.0
 
May 20, 2022, 4 a.m. 1.2 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (36) N/A N/A 6.0 μg/m3 (25) 36.0
 
May 20, 2022, 3 a.m. 1.9 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (33) N/A N/A 4.2 μg/m3 (18) 33.0
 
May 20, 2022, 2 a.m. 1.4 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (35) N/A N/A 2.4 μg/m3 (10) 35.0
 
May 20, 2022, 1 a.m. 0.9 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (36) N/A N/A 2.5 μg/m3 (11) 36.0
 
May 20, 2022, 1 a.m. 0.9 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (36) N/A N/A 2.5 μg/m3 (11) 36.0
 
May 20, 2022, midnight 1.0 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (35) N/A N/A 4.5 μg/m3 (19) 35.0
 
May 20, 2022, midnight 1.0 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (35) N/A N/A 4.5 μg/m3 (19) 35.0
 
May 19, 2022, 11 p.m. 1.4 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (36) N/A N/A 5.4 μg/m3 (23) 36.0
 
May 19, 2022, 10 p.m. 1.2 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (38) N/A N/A 4.2 μg/m3 (18) 38.0
 
May 19, 2022, 9 p.m. 1.8 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (38) N/A N/A 3.7 μg/m3 (16) 38.0
 
May 19, 2022, 8 p.m. 2.1 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (38) N/A N/A 3.7 μg/m3 (16) 38.0
 
May 19, 2022, 7 p.m. 1.7 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) N/A N/A 4.1 μg/m3 (18) 39.0
 
May 19, 2022, 7 p.m. 1.7 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) N/A N/A 4.1 μg/m3 (18) 39.0
 
May 19, 2022, 4 p.m. 3.7 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 44.0 ppb (41) N/A N/A 3.2 μg/m3 (14) 41.0
 
May 19, 2022, 2 p.m. 3.7 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (34) N/A N/A 3.7 μg/m3 (16) 34.0
 
May 19, 2022, 6 a.m. 2.0 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (42) N/A N/A 3.9 μg/m3 (17) 42.0
 
May 19, 2022, 5 a.m. 1.6 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 50.0 ppb (47) N/A N/A 4.4 μg/m3 (19) 47.0
 
May 19, 2022, 4 a.m. 1.8 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 55.0 ppb (51) N/A N/A 4.0 μg/m3 (17) 51.0
 
May 19, 2022, 3 a.m. 2.3 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 54.0 ppb (50) N/A N/A 3.7 μg/m3 (16) 50.0
 
May 19, 2022, 2 a.m. 2.5 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 53.0 ppb (50) N/A N/A 3.6 μg/m3 (16) 50.0
 
May 19, 2022, 1 a.m. 1.9 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 51.0 ppb (48) N/A N/A 3.6 μg/m3 (16) 48.0
 
May 18, 2022, 11 p.m. 2.9 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 53.0 ppb (50) N/A N/A 2.9 μg/m3 (13) 50.0
 
May 18, 2022, 10 p.m. 2.1 ppb (2) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 55.0 ppb (51) N/A N/A 3.0 μg/m3 (13) 51.0
 
May 18, 2022, 9 p.m. 2.1 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A 54.0 ppb (50) N/A N/A 3.2 μg/m3 (14) 50.0
 
May 18, 2022, 8 p.m. 2.2 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 55.0 ppb (51) N/A N/A 3.2 μg/m3 (14) 51.0
 
May 18, 2022, 7 p.m. 2.6 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 53.0 ppb (50) N/A N/A 3.3 μg/m3 (14) 50.0
 
May 18, 2022, 5 p.m. 2.9 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 48.0 ppb (45) N/A N/A 3.5 μg/m3 (15) 45.0
 
May 18, 2022, 4 p.m. 2.8 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (41) N/A N/A 3.7 μg/m3 (16) 41.0
 
May 18, 2022, 4 p.m. 2.8 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (41) N/A N/A 3.7 μg/m3 (16) 41.0
 
May 18, 2022, 3 p.m. 8.3 ppb (8) 2.8 ppb (3) N/A 5.0 ppb (5) N/A N/A 38.0 ppb (36) N/A N/A 5.0 μg/m3 (21) 36.0
 
May 18, 2022, 3 p.m. 8.3 ppb (8) 2.8 ppb (3) N/A 5.0 ppb (5) N/A N/A 38.0 ppb (36) N/A N/A 5.0 μg/m3 (21) 36.0
 
May 18, 2022, 2 p.m. 4.5 ppb (5) 1.3 ppb (2) N/A 3.0 ppb (3) N/A N/A 39.0 ppb (37) N/A N/A 4.2 μg/m3 (18) 37.0
 
May 18, 2022, 2 p.m. 4.5 ppb (5) 1.3 ppb (2) N/A 3.0 ppb (3) N/A N/A 39.0 ppb (37) N/A N/A 4.2 μg/m3 (18) 37.0
 
May 18, 2022, 1 p.m. 4.2 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (30) N/A N/A 4.7 μg/m3 (20) 30.0
 
May 18, 2022, 1 p.m. 4.2 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (30) N/A N/A 4.7 μg/m3 (20) 30.0
 
May 18, 2022, noon 7.6 ppb (8) 0.9 ppb (1) N/A 7.0 ppb (7) N/A N/A 28.0 ppb (26) N/A N/A 5.0 μg/m3 (21) 26.0
 
May 18, 2022, noon 7.6 ppb (8) 0.9 ppb (1) N/A 7.0 ppb (7) N/A N/A 28.0 ppb (26) N/A N/A 5.0 μg/m3 (21) 26.0
 
May 18, 2022, 11 a.m. 3.1 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 29.0 ppb (27) N/A N/A 4.6 μg/m3 (20) 27.0
 
May 18, 2022, 10 a.m. 2.8 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 28.0 ppb (26) N/A N/A 4.8 μg/m3 (20) 26.0
 
May 18, 2022, 2 a.m. 3.8 ppb (4) 0.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (33) N/A N/A 4.4 μg/m3 (19) 33.0