ID: 2795

AQSQID: 490353010

Site Name: Rose Park

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

Updated: May 12, 2021, 3:44 a.m.

Location: Salt Lake City (Rose Park), UT

Reporting: True, Located: True

Current AQI: 40.0

Salt Lake City (Rose Park) UT, US: 40.7955, -111.9309

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 12, 2021, 2 a.m. 5.1 ppb (5) 0.3 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 43.0 ppb (40) 0.0 ppb (0) N/A 2.3 μg/m3 (10) 40.0
 
May 12, 2021, 1 a.m. 2.1 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 49.0 ppb (46) 0.0 ppb (0) N/A 1.8 μg/m3 (8) 46.0
 
May 12, 2021, midnight 1.5 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 50.0 ppb (47) 0.0 ppb (0) N/A 1.5 μg/m3 (7) 47.0
 
May 11, 2021, 11 p.m. 1.3 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 52.0 ppb (49) 0.0 ppb (0) N/A 1.6 μg/m3 (7) 49.0
 
May 11, 2021, 10 p.m. 1.6 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 51.0 ppb (48) 0.0 ppb (0) N/A 1.9 μg/m3 (8) 48.0
 
May 11, 2021, 9 p.m. 1.5 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 51.0 ppb (48) 0.0 ppb (0) N/A 2.1 μg/m3 (9) 48.0
 
May 11, 2021, 8 p.m. 1.7 ppb (2) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 51.0 ppb (48) 0.0 ppb (0) N/A 2.4 μg/m3 (10) 48.0
 
May 11, 2021, 7 p.m. 1.9 ppb (2) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 50.0 ppb (47) 0.0 ppb (0) N/A 2.5 μg/m3 (11) 47.0
 
May 11, 2021, 6 p.m. 1.8 ppb (2) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 49.0 ppb (46) 0.0 ppb (0) N/A 2.2 μg/m3 (10) 46.0
 
May 11, 2021, 5 p.m. 1.6 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 47.0 ppb (44) 0.0 ppb (0) N/A 3.0 μg/m3 (13) 44.0
 
May 11, 2021, 4 p.m. 2.7 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 47.0 ppb (44) 0.0 ppb (0) N/A 3.3 μg/m3 (14) 44.0
 
May 11, 2021, 3 p.m. 12.3 ppb (12) 4.0 ppb (4) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 40.0 ppb (38) 0.0 ppb (0) N/A 6.5 μg/m3 (28) 38.0
 
May 11, 2021, 2 p.m. 16.7 ppb (16) 5.8 ppb (6) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 31.0 ppb (29) 0.1 ppb (2) N/A 7.8 μg/m3 (33) 33.0
 
May 11, 2021, 1 p.m. 37.9 ppb (36) 15.0 ppb (15) N/A 23.0 ppb (22) N/A 0.0 ppb (0) 14.0 ppb (13) 0.2 ppb (3) N/A 9.2 μg/m3 (39) 39.0
 
May 11, 2021, noon 27.6 ppb (27) 5.4 ppb (6) N/A 22.0 ppb (21) N/A 0.0 ppb (0) 9.0 ppb (9) 0.1 ppb (2) N/A 5.5 μg/m3 (23) 27.0
 
May 11, 2021, 11 a.m. 11.7 ppb (12) 0.5 ppb (1) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 4.3 μg/m3 (18) 20.0
 
May 11, 2021, 10 a.m. 7.7 ppb (8) 0.4 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 27.0 ppb (25) 0.0 ppb (0) N/A 3.3 μg/m3 (14) 25.0
 
May 11, 2021, 9 a.m. 4.5 ppb (5) 0.2 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 32.0 ppb (30) 0.0 ppb (0) N/A 3.1 μg/m3 (13) 30.0
 
May 11, 2021, 8 a.m. 3.9 ppb (4) 0.4 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 34.0 ppb (32) 0.0 ppb (0) N/A 3.1 μg/m3 (13) 32.0
 
May 11, 2021, 7 a.m. 2.8 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 38.0 ppb (36) 0.0 ppb (0) N/A 3.0 μg/m3 (13) 36.0
 
May 11, 2021, 6 a.m. 3.0 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 37.0 ppb (35) 0.0 ppb (0) N/A 2.9 μg/m3 (13) 35.0
 
May 11, 2021, 5 a.m. 3.5 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 39.0 ppb (37) 0.0 ppb (0) N/A 3.6 μg/m3 (16) 37.0
 
May 11, 2021, 4 a.m. 5.3 ppb (5) 0.3 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 41.0 ppb (38) 0.0 ppb (0) N/A 3.2 μg/m3 (14) 38.0
 
May 11, 2021, 3 a.m. 6.2 ppb (6) 0.2 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 43.0 ppb (40) 0.0 ppb (0) N/A 2.8 μg/m3 (12) 40.0
 
May 11, 2021, 2 a.m. 3.5 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 45.0 ppb (42) 0.0 ppb (0) N/A 2.5 μg/m3 (11) 42.0
 
May 11, 2021, 1 a.m. 1.7 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 50.0 ppb (47) 0.0 ppb (0) N/A 1.7 μg/m3 (8) 47.0
 
May 11, 2021, midnight 1.3 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 51.0 ppb (48) 0.0 ppb (0) N/A 1.8 μg/m3 (8) 48.0
 
May 10, 2021, 11 p.m. 1.1 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 51.0 ppb (48) 0.0 ppb (0) N/A 1.8 μg/m3 (8) 48.0
 
May 10, 2021, 10 p.m. 1.1 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 50.0 ppb (47) 0.0 ppb (0) N/A 1.7 μg/m3 (8) 47.0
 
May 10, 2021, 9 p.m. 1.3 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 50.0 ppb (47) 0.0 ppb (0) N/A 1.8 μg/m3 (8) 47.0
 
May 10, 2021, 8 p.m. 1.7 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 52.0 ppb (49) 0.0 ppb (0) N/A 2.6 μg/m3 (11) 49.0
 
May 10, 2021, 7 p.m. 2.1 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 51.0 ppb (48) 0.0 ppb (0) N/A 3.5 μg/m3 (15) 48.0
 
May 10, 2021, 6 p.m. 4.1 ppb (4) 1.2 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 48.0 ppb (45) 0.0 ppb (0) N/A 7.7 μg/m3 (33) 45.0
 
May 10, 2021, 5 p.m. 7.5 ppb (8) 2.2 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 44.0 ppb (41) 0.0 ppb (0) N/A 5.6 μg/m3 (24) 41.0
 
May 10, 2021, 4 p.m. 11.0 ppb (11) 3.8 ppb (4) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 41.0 ppb (38) 0.0 ppb (0) N/A 8.9 μg/m3 (38) 38.0
 
May 10, 2021, 3 p.m. 6.5 ppb (7) 1.6 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 41.0 ppb (38) 0.0 ppb (0) N/A 3.9 μg/m3 (17) 38.0
 
May 10, 2021, 2 p.m. 8.7 ppb (9) 1.2 ppb (2) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 38.0 ppb (36) 0.0 ppb (0) N/A 4.3 μg/m3 (18) 36.0
 
May 10, 2021, 1 p.m. 11.3 ppb (11) 0.7 ppb (1) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 32.0 ppb (30) 0.0 ppb (0) N/A 4.4 μg/m3 (19) 30.0
 
May 10, 2021, noon 5.7 ppb (6) 0.6 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 36.0 ppb (34) 0.0 ppb (0) N/A 3.5 μg/m3 (15) 34.0
 
May 10, 2021, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 42.0 ppb (39) 0.0 ppb (0) N/A 3.3 μg/m3 (14) 39.0
 
May 10, 2021, 10 a.m. 1.6 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 44.0 ppb (41) 0.0 ppb (0) N/A 3.0 μg/m3 (13) 41.0
 
May 10, 2021, 9 a.m. 4.9 ppb (5) 0.3 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 36.0 ppb (34) 0.0 ppb (0) N/A 2.8 μg/m3 (12) 34.0
 
May 10, 2021, 8 a.m. 11.0 ppb (11) 0.7 ppb (1) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 20.0 ppb (19) 0.0 ppb (0) N/A 3.7 μg/m3 (16) 19.0
 
May 10, 2021, 7 a.m. 10.8 ppb (11) 0.3 ppb (1) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 23.0 ppb (22) 0.0 ppb (0) N/A 3.8 μg/m3 (16) 22.0
 
May 10, 2021, 6 a.m. 13.1 ppb (13) 0.4 ppb (1) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 21.0 ppb (20) 0.0 ppb (0) N/A 4.6 μg/m3 (20) 20.0
 
May 10, 2021, 5 a.m. 7.8 ppb (8) 0.3 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 30.0 ppb (28) 0.0 ppb (0) N/A 3.0 μg/m3 (13) 28.0
 
May 10, 2021, 4 a.m. 6.9 ppb (7) 0.3 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 33.0 ppb (31) 0.0 ppb (0) N/A 3.7 μg/m3 (16) 31.0
 
May 10, 2021, 3 a.m. 5.1 ppb (5) 0.2 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 36.0 ppb (34) 0.0 ppb (0) N/A 2.9 μg/m3 (13) 34.0
 
May 10, 2021, 2 a.m. 2.7 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 39.0 ppb (37) 0.0 ppb (0) N/A 2.4 μg/m3 (10) 37.0
 
May 10, 2021, 1 a.m. 1.8 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 42.0 ppb (39) 0.0 ppb (0) N/A 2.5 μg/m3 (11) 39.0
 
May 10, 2021, midnight 0.8 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (40) 0.0 ppb (0) N/A 2.4 μg/m3 (10) 40.0
 
May 9, 2021, 11 p.m. 0.9 ppb (1) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (40) 0.0 ppb (0) N/A 2.2 μg/m3 (10) 40.0
 
May 9, 2021, 10 p.m. 1.0 ppb (1) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (40) 0.0 ppb (0) N/A 2.0 μg/m3 (9) 40.0
 
May 9, 2021, 9 p.m. 0.9 ppb (1) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 44.0 ppb (41) 0.0 ppb (0) N/A 1.8 μg/m3 (8) 41.0
 
May 9, 2021, 8 p.m. 1.2 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 46.0 ppb (43) 0.0 ppb (0) N/A 1.7 μg/m3 (8) 43.0
 
May 9, 2021, 7 p.m. 1.3 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 49.0 ppb (46) 0.0 ppb (0) N/A 1.7 μg/m3 (8) 46.0
 
May 9, 2021, 6 p.m. 1.5 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 51.0 ppb (48) 0.0 ppb (0) N/A 1.8 μg/m3 (8) 48.0
 
May 9, 2021, 5 p.m. 2.3 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 52.0 ppb (49) 0.0 ppb (0) N/A 1.8 μg/m3 (8) 49.0
 
May 9, 2021, 4 p.m. 3.9 ppb (4) 1.2 ppb (2) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 50.0 ppb (47) 0.0 ppb (0) N/A 1.9 μg/m3 (8) 47.0
 
May 9, 2021, 3 p.m. 5.9 ppb (6) 1.7 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 48.0 ppb (45) 0.0 ppb (0) N/A 2.1 μg/m3 (9) 45.0
 
May 9, 2021, 2 p.m. 5.6 ppb (6) 1.4 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 46.0 ppb (43) 0.1 ppb (2) N/A 4.3 μg/m3 (18) 43.0
 
May 9, 2021, 1 p.m. 16.4 ppb (16) 3.5 ppb (4) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 29.0 ppb (27) 0.1 ppb (2) N/A 3.0 μg/m3 (13) 27.0
 
May 9, 2021, noon 19.6 ppb (19) 1.7 ppb (2) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 19.0 ppb (18) 0.2 ppb (3) N/A 4.0 μg/m3 (17) 19.0
 
May 9, 2021, 11 a.m. 17.6 ppb (17) 0.8 ppb (1) N/A 17.0 ppb (17) N/A 0.0 ppb (0) N/A 0.1 ppb (2) N/A 3.5 μg/m3 (15) 17.0
 
May 9, 2021, 10 a.m. 17.3 ppb (17) 0.9 ppb (1) N/A 16.0 ppb (16) N/A 0.0 ppb (0) 17.0 ppb (16) 0.2 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
May 9, 2021, 9 a.m. 10.5 ppb (10) 0.6 ppb (1) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 25.0 ppb (24) 0.1 ppb (2) N/A 3.4 μg/m3 (15) 24.0
 
May 9, 2021, 8 a.m. 7.2 ppb (7) 0.7 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 31.0 ppb (29) 0.1 ppb (2) N/A 3.4 μg/m3 (15) 29.0
 
May 9, 2021, 7 a.m. 3.3 ppb (4) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 38.0 ppb (36) 0.0 ppb (0) N/A 3.0 μg/m3 (13) 36.0
 
May 9, 2021, 6 a.m. 4.2 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 39.0 ppb (37) 0.0 ppb (0) N/A 2.9 μg/m3 (13) 37.0
 
May 9, 2021, 5 a.m. 10.0 ppb (10) 0.5 ppb (1) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 33.0 ppb (31) 0.1 ppb (2) N/A 3.4 μg/m3 (15) 31.0
 
May 9, 2021, 4 a.m. 14.8 ppb (14) 0.6 ppb (1) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 30.0 ppb (28) 0.2 ppb (3) N/A 5.2 μg/m3 (22) 28.0
 
May 9, 2021, 3 a.m. 14.7 ppb (14) 0.7 ppb (1) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 29.0 ppb (27) 0.2 ppb (3) N/A 9.3 μg/m3 (39) 39.0
 
May 9, 2021, 2 a.m. 3.6 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 45.0 ppb (42) 0.1 ppb (2) N/A 2.9 μg/m3 (13) 42.0
 
May 9, 2021, 1 a.m. 1.3 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 51.0 ppb (48) 0.0 ppb (0) N/A 1.1 μg/m3 (5) 48.0
 
May 9, 2021, midnight 1.1 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 51.0 ppb (48) 0.0 ppb (0) N/A 1.1 μg/m3 (5) 48.0
 
May 8, 2021, 11 p.m. 1.0 ppb (1) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 50.0 ppb (47) 0.0 ppb (0) N/A 1.1 μg/m3 (5) 47.0
 
May 8, 2021, 10 p.m. 1.2 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 50.0 ppb (47) 0.0 ppb (0) N/A 1.1 μg/m3 (5) 47.0
 
May 8, 2021, 9 p.m. 0.9 ppb (1) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 50.0 ppb (47) 0.0 ppb (0) N/A 1.2 μg/m3 (5) 47.0
 
May 8, 2021, 8 p.m. 1.1 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 49.0 ppb (46) 0.0 ppb (0) N/A 1.3 μg/m3 (6) 46.0
 
May 8, 2021, 7 p.m. 1.1 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 48.0 ppb (45) 0.0 ppb (0) N/A 1.3 μg/m3 (6) 45.0
 
May 8, 2021, 6 p.m. 1.4 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 47.0 ppb (44) 0.0 ppb (0) N/A 1.4 μg/m3 (6) 44.0
 
May 8, 2021, 5 p.m. 1.0 ppb (1) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 47.0 ppb (44) 0.0 ppb (0) N/A 1.4 μg/m3 (6) 44.0
 
May 8, 2021, 4 p.m. 2.0 ppb (2) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 45.0 ppb (42) 0.0 ppb (0) N/A 1.6 μg/m3 (7) 42.0
 
May 8, 2021, 3 p.m. 1.5 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 46.0 ppb (43) 0.0 ppb (0) N/A 1.4 μg/m3 (6) 43.0
 
May 8, 2021, 2 p.m. 2.4 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 43.0 ppb (40) 0.0 ppb (0) N/A 1.1 μg/m3 (5) 40.0
 
May 8, 2021, 1 p.m. 2.9 ppb (3) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 41.0 ppb (38) 0.0 ppb (0) N/A 1.3 μg/m3 (6) 38.0
 
May 8, 2021, noon 3.1 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 40.0 ppb (38) 0.0 ppb (0) N/A 1.2 μg/m3 (5) 38.0
 
May 8, 2021, 11 a.m. 1.9 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (39) 0.0 ppb (0) N/A 1.4 μg/m3 (6) 39.0
 
May 8, 2021, 10 a.m. 1.8 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 42.0 ppb (39) 0.0 ppb (0) N/A 1.6 μg/m3 (7) 39.0
 
May 8, 2021, 9 a.m. 2.1 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 41.0 ppb (38) 0.0 ppb (0) N/A 1.9 μg/m3 (8) 38.0
 
May 8, 2021, 8 a.m. 2.7 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 38.0 ppb (36) 0.0 ppb (0) N/A 2.5 μg/m3 (11) 36.0
 
May 8, 2021, 7 a.m. 6.3 ppb (6) 0.4 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 38.0 ppb (36) 0.0 ppb (0) N/A 2.8 μg/m3 (12) 36.0
 
May 8, 2021, 6 a.m. 5.9 ppb (6) 0.4 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 41.0 ppb (38) 0.0 ppb (0) N/A 2.8 μg/m3 (12) 38.0
 
May 8, 2021, 5 a.m. 4.3 ppb (5) 0.3 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 48.0 ppb (45) 0.0 ppb (0) N/A 2.4 μg/m3 (10) 45.0
 
May 8, 2021, 4 a.m. 1.8 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 50.0 ppb (47) N/A N/A 2.8 μg/m3 (12) 47.0
 
May 8, 2021, 3 a.m. 4.1 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 48.0 ppb (45) 0.0 ppb (0) N/A 2.9 μg/m3 (13) 45.0
 
May 8, 2021, 2 a.m. 3.9 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 46.0 ppb (43) 0.0 ppb (0) N/A 7.2 μg/m3 (31) 43.0
 
May 8, 2021, 1 a.m. 2.8 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 43.0 ppb (40) 0.0 ppb (0) N/A 6.8 μg/m3 (29) 40.0
 
May 8, 2021, midnight 2.1 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 48.0 ppb (45) N/A N/A N/A 45.0
 
May 7, 2021, 11 p.m. 1.8 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 53.0 ppb (50) 0.0 ppb (0) N/A 6.6 μg/m3 (28) 50.0
 
May 7, 2021, 10 p.m. 2.8 ppb (3) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 50.0 ppb (47) 0.0 ppb (0) N/A 5.9 μg/m3 (25) 47.0
 
May 7, 2021, 9 p.m. 2.9 ppb (3) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 49.0 ppb (46) 0.0 ppb (0) N/A 10.5 μg/m3 (44) 46.0
 
May 7, 2021, 8 p.m. 2.9 ppb (3) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 52.0 ppb (49) 0.0 ppb (0) N/A 8.5 μg/m3 (36) 49.0
 
May 7, 2021, 7 p.m. 2.1 ppb (2) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 54.0 ppb (50) 0.0 ppb (0) N/A 10.4 μg/m3 (44) 50.0
 
May 7, 2021, 6 p.m. 2.4 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 54.0 ppb (50) 0.0 ppb (0) N/A 6.8 μg/m3 (29) 50.0
 
May 7, 2021, 5 p.m. 3.8 ppb (4) 1.4 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 55.0 ppb (51) 0.0 ppb (0) N/A 8.4 μg/m3 (36) 51.0
 
May 7, 2021, 4 p.m. 3.9 ppb (4) 1.1 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 53.0 ppb (50) 0.0 ppb (0) N/A 7.8 μg/m3 (33) 50.0
 
May 7, 2021, 3 p.m. 6.0 ppb (6) 1.4 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 50.0 ppb (47) 0.0 ppb (0) N/A 7.4 μg/m3 (31) 47.0
 
May 7, 2021, 2 p.m. 16.1 ppb (16) 4.1 ppb (4) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 40.0 ppb (38) 0.0 ppb (0) N/A 7.0 μg/m3 (30) 38.0
 
May 7, 2021, 1 p.m. 13.7 ppb (13) 2.0 ppb (2) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 39.0 ppb (37) 0.0 ppb (0) N/A 5.3 μg/m3 (23) 37.0
 
May 7, 2021, noon 8.1 ppb (8) 0.4 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 43.0 ppb (40) 0.0 ppb (0) N/A 4.3 μg/m3 (18) 40.0
 
May 7, 2021, 11 a.m. 6.9 ppb (7) 0.3 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 44.0 ppb (41) 0.0 ppb (0) N/A 4.1 μg/m3 (18) 41.0
 
May 7, 2021, 10 a.m. 7.2 ppb (7) 0.3 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 43.0 ppb (40) 0.0 ppb (0) N/A 3.9 μg/m3 (17) 40.0
 
May 7, 2021, 9 a.m. 6.0 ppb (6) 0.2 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 42.0 ppb (39) 0.0 ppb (0) N/A 3.6 μg/m3 (16) 39.0
 
May 7, 2021, 8 a.m. 8.1 ppb (8) 0.4 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 38.0 ppb (36) 0.0 ppb (0) N/A 3.2 μg/m3 (14) 36.0
 
May 7, 2021, 7 a.m. 9.8 ppb (10) 0.3 ppb (1) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 35.0 ppb (33) 0.0 ppb (0) N/A 3.5 μg/m3 (15) 33.0
 
May 7, 2021, 6 a.m. 8.5 ppb (9) 0.3 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 38.0 ppb (36) 0.0 ppb (0) N/A 3.0 μg/m3 (13) 36.0
 
May 7, 2021, 5 a.m. 17.0 ppb (17) 0.4 ppb (1) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 30.0 ppb (28) 0.1 ppb (2) N/A 3.9 μg/m3 (17) 28.0
 
May 7, 2021, 4 a.m. 21.8 ppb (21) 0.6 ppb (1) N/A 21.0 ppb (20) N/A 0.0 ppb (0) 28.0 ppb (26) 0.2 ppb (3) N/A 4.8 μg/m3 (20) 26.0
 
May 7, 2021, 3 a.m. 33.1 ppb (32) 0.9 ppb (1) N/A 32.0 ppb (31) N/A 0.0 ppb (0) 20.0 ppb (19) 0.2 ppb (3) N/A 7.4 μg/m3 (31) 32.0
 
May 7, 2021, 2 a.m. 15.8 ppb (15) 0.5 ppb (1) N/A 15.0 ppb (15) N/A 1.0 ppb (2) 42.0 ppb (39) 0.4 ppb (5) N/A 10.1 μg/m3 (43) 43.0
 
May 7, 2021, 1 a.m. 6.3 ppb (6) 0.4 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 62.0 ppb (74) 0.1 ppb (2) N/A 11.3 μg/m3 (48) 74.0
 
May 7, 2021, midnight 2.8 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 69.0 ppb (97) 0.0 ppb (0) N/A 4.9 μg/m3 (21) 97.0
 
May 6, 2021, 11 p.m. 3.2 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 68.0 ppb (94) 0.0 ppb (0) N/A 5.1 μg/m3 (22) 94.0
 
May 6, 2021, 10 p.m. 4.7 ppb (5) 1.1 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 68.0 ppb (94) 0.0 ppb (0) N/A 6.7 μg/m3 (28) 94.0
 
May 6, 2021, 9 p.m. 3.4 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 62.0 ppb (74) 0.0 ppb (0) N/A 5.7 μg/m3 (24) 74.0
 
May 6, 2021, 8 p.m. 3.3 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 60.0 ppb (68) 0.0 ppb (0) N/A 5.1 μg/m3 (22) 68.0
 
May 6, 2021, 7 p.m. 7.5 ppb (8) 1.7 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 60.0 ppb (68) 0.0 ppb (0) N/A 7.1 μg/m3 (30) 68.0
 
May 6, 2021, 6 p.m. 14.2 ppb (14) 3.6 ppb (4) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 55.0 ppb (51) 0.1 ppb (2) N/A 8.3 μg/m3 (35) 51.0
 
May 6, 2021, 5 p.m. 18.8 ppb (18) 5.3 ppb (5) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 48.0 ppb (45) 0.1 ppb (2) N/A 8.5 μg/m3 (36) 45.0
 
May 6, 2021, 4 p.m. 24.3 ppb (23) 7.6 ppb (8) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 42.0 ppb (39) 0.2 ppb (3) N/A 9.4 μg/m3 (40) 40.0
 
May 6, 2021, 3 p.m. 39.4 ppb (38) 13.6 ppb (13) N/A 26.0 ppb (25) N/A 2.0 ppb (3) 33.0 ppb (31) 0.2 ppb (3) N/A 13.0 μg/m3 (53) 53.0
 
May 6, 2021, 2 p.m. 28.3 ppb (27) 8.3 ppb (8) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 33.0 ppb (31) 0.2 ppb (3) N/A 10.7 μg/m3 (45) 45.0
 
May 6, 2021, 1 p.m. 26.8 ppb (26) 5.0 ppb (5) N/A 22.0 ppb (21) N/A 0.0 ppb (0) 26.0 ppb (25) 0.2 ppb (3) N/A 9.4 μg/m3 (40) 40.0
 
May 6, 2021, noon 34.5 ppb (33) 4.0 ppb (4) N/A 31.0 ppb (30) N/A 0.0 ppb (0) 10.0 ppb (10) 0.3 ppb (4) N/A 11.2 μg/m3 (47) 47.0
 
May 6, 2021, 11 a.m. 26.7 ppb (26) 0.9 ppb (1) N/A 26.0 ppb (25) N/A 0.0 ppb (0) 17.0 ppb (16) 0.1 ppb (2) N/A 9.5 μg/m3 (40) 40.0
 
May 6, 2021, 10 a.m. 18.0 ppb (17) 0.7 ppb (1) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 20.0 ppb (19) 0.1 ppb (2) N/A 8.1 μg/m3 (34) 34.0
 
May 6, 2021, 9 a.m. 14.3 ppb (14) 0.5 ppb (1) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 28.0 ppb (26) 0.1 ppb (2) N/A 7.3 μg/m3 (31) 31.0
 
May 6, 2021, 8 a.m. 12.4 ppb (12) 0.5 ppb (1) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 29.0 ppb (27) 0.1 ppb (2) N/A 7.4 μg/m3 (31) 31.0
 
May 6, 2021, 7 a.m. 12.9 ppb (13) 0.4 ppb (1) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 37.0 ppb (35) 0.1 ppb (2) N/A 6.6 μg/m3 (28) 35.0
 
May 6, 2021, 6 a.m. 16.1 ppb (16) 0.5 ppb (1) N/A 16.0 ppb (16) N/A 0.0 ppb (0) 33.0 ppb (31) 0.1 ppb (2) N/A 7.1 μg/m3 (30) 31.0
 
May 6, 2021, 5 a.m. 26.5 ppb (25) 1.0 ppb (1) N/A 26.0 ppb (25) N/A 0.0 ppb (0) 15.0 ppb (14) 0.1 ppb (2) N/A 8.7 μg/m3 (37) 37.0
 
May 6, 2021, 4 a.m. 17.3 ppb (17) 0.5 ppb (1) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 28.0 ppb (26) 0.1 ppb (2) N/A 7.4 μg/m3 (31) 31.0
 
May 6, 2021, 3 a.m. 16.0 ppb (16) 0.4 ppb (1) N/A 16.0 ppb (16) N/A 0.0 ppb (0) 34.0 ppb (32) 0.1 ppb (2) N/A 6.1 μg/m3 (26) 32.0
 
May 6, 2021, 2 a.m. 6.6 ppb (7) 0.2 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 49.0 ppb (46) 0.0 ppb (0) N/A 4.4 μg/m3 (19) 46.0
 
May 6, 2021, 1 a.m. 1.8 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 56.0 ppb (55) 0.0 ppb (0) N/A 3.7 μg/m3 (16) 55.0
 
May 6, 2021, midnight 1.4 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 57.0 ppb (58) 0.0 ppb (0) N/A 3.7 μg/m3 (16) 58.0
 
May 5, 2021, 11 p.m. 1.4 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 56.0 ppb (55) 0.0 ppb (0) N/A 3.5 μg/m3 (15) 55.0
 
May 5, 2021, 10 p.m. 1.8 ppb (2) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 56.0 ppb (55) 0.0 ppb (0) N/A 4.3 μg/m3 (18) 55.0
 
May 5, 2021, 9 p.m. 1.8 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 56.0 ppb (55) 0.0 ppb (0) N/A 4.7 μg/m3 (20) 55.0
 
May 5, 2021, 8 p.m. 1.5 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 54.0 ppb (50) 0.0 ppb (0) N/A 4.6 μg/m3 (20) 50.0
 
May 5, 2021, 7 p.m. 1.7 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 52.0 ppb (49) 0.0 ppb (0) N/A 4.0 μg/m3 (17) 49.0
 
May 5, 2021, 6 p.m. 1.6 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 50.0 ppb (47) 0.0 ppb (0) N/A 3.9 μg/m3 (17) 47.0
 
May 5, 2021, 5 p.m. 1.8 ppb (2) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 49.0 ppb (46) 0.0 ppb (0) N/A 3.6 μg/m3 (16) 46.0
 
May 5, 2021, 4 p.m. 2.3 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 46.0 ppb (43) 0.0 ppb (0) N/A 3.2 μg/m3 (14) 43.0
 
May 5, 2021, 3 p.m. 6.9 ppb (7) 2.1 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 39.0 ppb (37) 0.0 ppb (0) N/A 4.2 μg/m3 (18) 37.0
 
May 5, 2021, 2 p.m. 18.8 ppb (18) 6.2 ppb (6) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 28.0 ppb (26) 0.0 ppb (0) N/A 7.3 μg/m3 (31) 31.0
 
May 5, 2021, 1 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 9.0 ppb (9) 0.3 ppb (4) N/A 10.7 μg/m3 (45) 45.0
 
May 5, 2021, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 3.0 ppb (3) 0.3 ppb (4) N/A 9.6 μg/m3 (40) 40.0
 
May 5, 2021, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 7.0 ppb (7) 0.1 ppb (2) N/A 7.5 μg/m3 (32) 32.0
 
May 5, 2021, 10 a.m. 20.9 ppb (20) 0.8 ppb (1) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 11.0 ppb (11) 0.1 ppb (2) N/A 7.0 μg/m3 (30) 30.0
 
May 5, 2021, 9 a.m. 16.7 ppb (16) 0.6 ppb (1) N/A 16.0 ppb (16) N/A 0.0 ppb (0) 15.0 ppb (14) 0.0 ppb (0) N/A 5.9 μg/m3 (25) 25.0
 
May 5, 2021, 8 a.m. 13.9 ppb (14) 0.7 ppb (1) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 17.0 ppb (16) 0.0 ppb (0) N/A 5.0 μg/m3 (21) 21.0
 
May 5, 2021, 7 a.m. 10.3 ppb (10) 0.5 ppb (1) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 24.0 ppb (23) 0.0 ppb (0) N/A 4.2 μg/m3 (18) 23.0
 
May 5, 2021, 6 a.m. 8.2 ppb (8) 0.4 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 28.0 ppb (26) 0.0 ppb (0) N/A 3.3 μg/m3 (14) 26.0
 
May 5, 2021, 5 a.m. 6.2 ppb (6) 0.3 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 32.0 ppb (30) 0.0 ppb (0) N/A 2.7 μg/m3 (12) 30.0
 
May 5, 2021, 4 a.m. 7.6 ppb (8) 0.2 ppb (1) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 38.0 ppb (36) 0.0 ppb (0) N/A 2.5 μg/m3 (11) 36.0
 
May 5, 2021, 3 a.m. 6.1 ppb (6) 0.2 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 40.0 ppb (38) 0.0 ppb (0) N/A 2.4 μg/m3 (10) 38.0