ID: 2795

AQSQID: 490353010

Site Name: Rose Park

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

Updated: June 15, 2021, 8:50 a.m.

Location: Salt Lake City (Rose Park), UT

Reporting: True, Located: True

Current AQI: 35.0

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
June 8, 2021, 7 a.m. 3.1 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 46.0 ppb (43) 0.0 ppb (0) N/A 4.5 μg/m3 (19) 43.0
 
June 8, 2021, 6 a.m. 4.5 ppb (5) 0.2 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 45.0 ppb (42) 0.0 ppb (0) N/A 6.0 μg/m3 (25) 42.0
 
June 8, 2021, 5 a.m. 3.9 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 45.0 ppb (42) 0.0 ppb (0) N/A 9.0 μg/m3 (38) 42.0
 
June 8, 2021, 4 a.m. 3.5 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 46.0 ppb (43) 0.0 ppb (0) N/A 9.3 μg/m3 (39) 43.0
 
June 8, 2021, 3 a.m. 3.4 ppb (4) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 44.0 ppb (41) 0.0 ppb (0) N/A 9.8 μg/m3 (41) 41.0
 
June 8, 2021, 2 a.m. 5.4 ppb (6) 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 12.2 μg/m3 (52) 52.0
 
June 8, 2021, 1 a.m. 5.1 ppb (5) 0.3 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 47.0 ppb (44) 0.0 ppb (0) N/A 9.3 μg/m3 (39) 44.0
 
June 8, 2021, midnight 4.4 ppb (5) 0.4 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 54.0 ppb (50) 0.0 ppb (0) N/A 7.9 μg/m3 (33) 50.0
 
June 7, 2021, 11 p.m. 5.0 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 63.0 ppb (78) 0.0 ppb (0) N/A 8.3 μg/m3 (35) 78.0
 
June 7, 2021, 10 p.m. 4.0 ppb (4) 0.5 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 71.0 ppb (101) 0.0 ppb (0) N/A 8.2 μg/m3 (35) 101.0
 
June 7, 2021, 9 p.m. 3.8 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) N/A N/A N/A 8.1 μg/m3 (34) 34.0
 
June 7, 2021, 8 p.m. 4.7 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) N/A 0.0 ppb (0) N/A 9.2 μg/m3 (39) 39.0
 
June 7, 2021, 7 p.m. 4.7 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) N/A 0.0 ppb (0) N/A 7.8 μg/m3 (33) 33.0
 
June 7, 2021, 6 p.m. 3.8 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) N/A 0.0 ppb (0) N/A 7.4 μg/m3 (31) 31.0
 
June 7, 2021, 5 p.m. 3.6 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 54.0 ppb (50) 0.0 ppb (0) N/A 6.1 μg/m3 (26) 50.0
 
June 7, 2021, 4 p.m. 4.6 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 52.0 ppb (49) 0.0 ppb (0) N/A 6.2 μg/m3 (26) 49.0
 
June 7, 2021, 3 p.m. 4.4 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 46.0 ppb (43) 0.0 ppb (0) N/A 5.4 μg/m3 (23) 43.0
 
June 7, 2021, 2 p.m. 5.9 ppb (6) 1.4 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 39.0 ppb (37) 0.0 ppb (0) N/A 5.8 μg/m3 (25) 37.0
 
June 7, 2021, 1 p.m. 6.2 ppb (6) 1.1 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 36.0 ppb (34) 0.0 ppb (0) N/A 5.5 μg/m3 (23) 34.0
 
June 7, 2021, noon 7.9 ppb (8) 0.7 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 33.0 ppb (31) 0.0 ppb (0) N/A 5.4 μg/m3 (23) 31.0
 
June 7, 2021, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (33) 0.0 ppb (0) N/A 6.3 μg/m3 (27) 33.0
 
June 7, 2021, 10 a.m. 3.9 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 45.0 ppb (42) 0.0 ppb (0) N/A 13.6 μg/m3 (55) 55.0
 
June 7, 2021, 9 a.m. 3.1 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 47.0 ppb (44) 0.0 ppb (0) N/A 15.0 μg/m3 (58) 58.0
 
June 7, 2021, 8 a.m. 2.2 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 49.0 ppb (46) 0.0 ppb (0) N/A 23.5 μg/m3 (75) 75.0
 
June 7, 2021, 7 a.m. 2.4 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 49.0 ppb (46) 0.0 ppb (0) N/A 49.5 μg/m3 (136) 136.0
 
June 7, 2021, 6 a.m. 3.7 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 48.0 ppb (45) 0.0 ppb (0) N/A 46.5 μg/m3 (129) 129.0
 
June 7, 2021, 5 a.m. 4.5 ppb (5) 0.2 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 48.0 ppb (45) 0.0 ppb (0) N/A 30.1 μg/m3 (89) 89.0
 
June 7, 2021, 4 a.m. 18.0 ppb (17) 0.3 ppb (1) N/A 18.0 ppb (17) N/A 1.0 ppb (2) 35.0 ppb (33) 0.1 ppb (2) N/A 15.6 μg/m3 (59) 59.0
 
June 7, 2021, 3 a.m. 17.3 ppb (17) 0.5 ppb (1) N/A 17.0 ppb (17) N/A 1.0 ppb (2) 37.0 ppb (35) 0.1 ppb (2) N/A 10.3 μg/m3 (43) 43.0
 
June 7, 2021, 2 a.m. 7.7 ppb (8) 0.3 ppb (1) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 56.0 ppb (55) 0.0 ppb (0) N/A 8.6 μg/m3 (36) 55.0
 
June 7, 2021, 1 a.m. 4.3 ppb (5) 0.4 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 68.0 ppb (94) 0.0 ppb (0) N/A 7.5 μg/m3 (32) 94.0
 
June 7, 2021, midnight 4.8 ppb (5) 0.5 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 72.0 ppb (102) 0.0 ppb (0) N/A 7.7 μg/m3 (33) 102.0
 
June 6, 2021, 11 p.m. 5.8 ppb (6) 0.7 ppb (1) N/A 5.0 ppb (5) N/A 2.0 ppb (3) 72.0 ppb (102) 0.0 ppb (0) N/A 6.8 μg/m3 (29) 102.0
 
June 6, 2021, 10 p.m. 3.0 ppb (3) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 67.0 ppb (91) 0.0 ppb (0) N/A 5.9 μg/m3 (25) 91.0
 
June 6, 2021, 9 p.m. 2.2 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 63.0 ppb (78) 0.0 ppb (0) N/A 5.8 μg/m3 (25) 78.0
 
June 6, 2021, 8 p.m. 2.3 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 63.0 ppb (78) 0.0 ppb (0) N/A 6.0 μg/m3 (25) 78.0
 
June 6, 2021, 7 p.m. 2.0 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 61.0 ppb (71) 0.0 ppb (0) N/A 5.8 μg/m3 (25) 71.0
 
June 6, 2021, 6 p.m. 1.7 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 58.0 ppb (61) 0.0 ppb (0) N/A 5.7 μg/m3 (24) 61.0
 
June 6, 2021, 5 p.m. 1.7 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 56.0 ppb (55) 0.0 ppb (0) N/A 6.0 μg/m3 (25) 55.0
 
June 6, 2021, 4 p.m. 2.4 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 52.0 ppb (49) 0.0 ppb (0) N/A 6.0 μg/m3 (25) 49.0
 
June 6, 2021, 3 p.m. 2.3 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 50.0 ppb (47) 0.0 ppb (0) N/A 5.7 μg/m3 (24) 47.0
 
June 6, 2021, 2 p.m. 2.3 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 48.0 ppb (45) 0.0 ppb (0) N/A 5.9 μg/m3 (25) 45.0
 
June 6, 2021, 1 p.m. 4.4 ppb (5) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 41.0 ppb (38) 0.0 ppb (0) N/A 6.7 μg/m3 (28) 38.0
 
June 6, 2021, noon 5.0 ppb (5) 0.3 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 36.0 ppb (34) 0.0 ppb (0) N/A 6.8 μg/m3 (29) 34.0
 
June 6, 2021, 11 a.m. 3.1 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.0 ppb (0) N/A 6.6 μg/m3 (28) 28.0
 
June 6, 2021, 10 a.m. 2.4 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 41.0 ppb (38) 0.0 ppb (0) N/A 6.8 μg/m3 (29) 38.0
 
June 6, 2021, 9 a.m. 3.0 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 39.0 ppb (37) N/A N/A 6.8 μg/m3 (29) 37.0
 
June 6, 2021, 8 a.m. 8.5 ppb (9) 0.5 ppb (1) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 29.0 ppb (27) 0.0 ppb (0) N/A 7.0 μg/m3 (30) 30.0
 
June 6, 2021, 7 a.m. 9.5 ppb (9) 0.4 ppb (1) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 20.0 ppb (19) 0.0 ppb (0) N/A 7.0 μg/m3 (30) 30.0
 
June 6, 2021, 6 a.m. 8.7 ppb (9) 0.5 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 25.0 ppb (24) 0.0 ppb (0) N/A 8.2 μg/m3 (35) 35.0
 
June 6, 2021, 5 a.m. 8.3 ppb (8) 0.4 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 29.0 ppb (27) 0.0 ppb (0) N/A 4.9 μg/m3 (21) 27.0
 
June 6, 2021, 4 a.m. 12.6 ppb (12) 0.5 ppb (1) N/A 12.0 ppb (12) N/A 1.0 ppb (2) 28.0 ppb (26) 0.0 ppb (0) N/A 6.8 μg/m3 (29) 29.0
 
June 6, 2021, 3 a.m. 10.7 ppb (11) 0.4 ppb (1) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 33.0 ppb (31) N/A N/A 15.9 μg/m3 (59) 59.0
 
June 6, 2021, 2 a.m. 3.1 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 46.0 ppb (43) 0.0 ppb (0) N/A 30.2 μg/m3 (90) 90.0
 
June 6, 2021, 1 a.m. 2.6 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 47.0 ppb (44) 0.0 ppb (0) N/A 6.4 μg/m3 (27) 44.0
 
June 6, 2021, midnight 1.3 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 50.0 ppb (47) 0.0 ppb (0) N/A 6.6 μg/m3 (28) 47.0
 
June 5, 2021, 11 p.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) N/A N/A 5.5 μg/m3 (23) 48.0
 
June 5, 2021, 10 p.m. 1.8 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 53.0 ppb (50) N/A N/A 5.2 μg/m3 (22) 50.0
 
June 5, 2021, 9 p.m. 2.8 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 68.0 ppb (94) N/A N/A 6.6 μg/m3 (28) 94.0
 
June 5, 2021, 8 p.m. 2.9 ppb (3) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 71.0 ppb (101) N/A N/A 6.8 μg/m3 (29) 101.0
 
June 5, 2021, 7 p.m. 3.0 ppb (3) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 67.0 ppb (91) N/A N/A 6.7 μg/m3 (28) 91.0
 
June 5, 2021, 6 p.m. 3.4 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 64.0 ppb (81) N/A N/A 7.2 μg/m3 (31) 81.0
 
June 5, 2021, 5 p.m. 3.8 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 58.0 ppb (61) 0.0 ppb (0) N/A 6.8 μg/m3 (29) 61.0
 
June 5, 2021, 4 p.m. 6.1 ppb (6) 1.2 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 54.0 ppb (50) N/A N/A 7.6 μg/m3 (32) 50.0
 
June 5, 2021, 3 p.m. 11.8 ppb (12) 2.6 ppb (3) N/A 9.0 ppb (9) N/A 2.0 ppb (3) 46.0 ppb (43) 0.0 ppb (0) N/A 8.2 μg/m3 (35) 43.0
 
June 5, 2021, 2 p.m. 19.6 ppb (19) 5.5 ppb (6) N/A 14.0 ppb (14) N/A 1.0 ppb (2) 32.0 ppb (30) 0.0 ppb (0) N/A 9.3 μg/m3 (39) 39.0
 
June 5, 2021, 1 p.m. 21.1 ppb (20) 5.6 ppb (6) N/A 16.0 ppb (16) N/A 1.0 ppb (2) 20.0 ppb (19) 0.0 ppb (0) N/A 9.4 μg/m3 (40) 40.0
 
June 5, 2021, noon 14.7 ppb (14) 1.6 ppb (2) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 19.0 ppb (18) 0.0 ppb (0) N/A 8.2 μg/m3 (35) 35.0
 
June 5, 2021, 11 a.m. 7.3 ppb (7) 0.3 ppb (1) N/A 7.0 ppb (7) N/A N/A 28.0 ppb (26) N/A N/A 6.5 μg/m3 (28) 28.0
 
June 5, 2021, 10 a.m. 7.3 ppb (7) 0.3 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 6.1 μg/m3 (26) 31.0
 
June 5, 2021, 9 a.m. 7.8 ppb (8) 0.3 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 32.0 ppb (30) N/A N/A 7.4 μg/m3 (31) 31.0
 
June 5, 2021, 8 a.m. 4.6 ppb (5) 0.3 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 38.0 ppb (36) N/A N/A 5.6 μg/m3 (24) 36.0
 
June 5, 2021, 7 a.m. 8.1 ppb (8) 0.2 ppb (1) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 37.0 ppb (35) N/A N/A 5.5 μg/m3 (23) 35.0
 
June 5, 2021, 6 a.m. 6.4 ppb (7) 0.2 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 37.0 ppb (35) N/A N/A 5.0 μg/m3 (21) 35.0
 
June 5, 2021, 5 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) N/A N/A 4.8 μg/m3 (20) 40.0
 
June 5, 2021, 4 a.m. 2.3 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 46.0 ppb (43) N/A N/A 8.1 μg/m3 (34) 43.0
 
June 5, 2021, 3 a.m. 2.4 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 46.0 ppb (43) N/A N/A 10.8 μg/m3 (46) 46.0
 
June 5, 2021, 2 a.m. 6.1 ppb (6) 0.3 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 41.0 ppb (38) 0.0 ppb (0) N/A 5.9 μg/m3 (25) 38.0
 
June 5, 2021, 1 a.m. 2.3 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 51.0 ppb (48) 0.0 ppb (0) N/A 3.7 μg/m3 (16) 48.0
 
June 5, 2021, midnight 2.0 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 58.0 ppb (61) 0.0 ppb (0) N/A 4.3 μg/m3 (18) 61.0
 
June 4, 2021, 11 p.m. 2.2 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 66.0 ppb (87) 0.0 ppb (0) N/A 4.0 μg/m3 (17) 87.0
 
June 4, 2021, 10 p.m. 2.2 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 70.0 ppb (100) N/A N/A 4.0 μg/m3 (17) 100.0
 
June 4, 2021, 9 p.m. 2.3 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 68.0 ppb (94) 0.0 ppb (0) N/A 3.7 μg/m3 (16) 94.0
 
June 4, 2021, 8 p.m. 4.4 ppb (5) 0.5 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 85.0 ppb (109) 0.0 ppb (0) N/A 6.4 μg/m3 (27) 109.0
 
June 4, 2021, 7 p.m. 6.4 ppb (7) 0.8 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 86.0 ppb (109) 0.0 ppb (0) N/A 8.1 μg/m3 (34) 109.0
 
June 4, 2021, 6 p.m. 8.4 ppb (8) 1.2 ppb (2) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 77.0 ppb (105) 0.0 ppb (0) N/A 9.2 μg/m3 (39) 105.0
 
June 4, 2021, 5 p.m. 13.4 ppb (13) 2.3 ppb (3) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 69.0 ppb (97) 0.0 ppb (0) N/A 10.8 μg/m3 (46) 97.0
 
June 4, 2021, 4 p.m. 18.2 ppb (18) 3.7 ppb (4) N/A 15.0 ppb (15) N/A 2.0 ppb (3) 57.0 ppb (58) 0.0 ppb (0) N/A 14.0 μg/m3 (55) 58.0
 
June 4, 2021, 3 p.m. 15.0 ppb (15) 3.5 ppb (4) N/A 12.0 ppb (12) N/A 1.0 ppb (2) 47.0 ppb (44) 0.0 ppb (0) N/A 9.1 μg/m3 (38) 44.0
 
June 4, 2021, 2 p.m. 24.9 ppb (24) 6.9 ppb (7) N/A 18.0 ppb (17) N/A 1.0 ppb (2) 33.0 ppb (31) 0.0 ppb (0) N/A 11.1 μg/m3 (47) 47.0
 
June 4, 2021, 1 p.m. 34.8 ppb (33) 9.2 ppb (9) N/A 26.0 ppb (25) N/A 1.0 ppb (2) 20.0 ppb (19) 0.1 ppb (2) N/A 14.0 μg/m3 (55) 55.0
 
June 4, 2021, noon 28.0 ppb (27) 3.0 ppb (3) N/A 25.0 ppb (24) N/A 1.0 ppb (2) 16.0 ppb (15) 0.0 ppb (0) N/A 12.1 μg/m3 (51) 51.0
 
June 4, 2021, 11 a.m. 30.3 ppb (29) 1.5 ppb (2) N/A 29.0 ppb (28) N/A 1.0 ppb (2) 4.0 ppb (4) 0.0 ppb (0) N/A 15.8 μg/m3 (59) 59.0
 
June 4, 2021, 10 a.m. 28.7 ppb (28) 1.0 ppb (1) N/A 28.0 ppb (27) N/A 1.0 ppb (2) 7.0 ppb (7) 0.0 ppb (0) N/A 16.2 μg/m3 (60) 60.0
 
June 4, 2021, 9 a.m. 20.1 ppb (19) 0.5 ppb (1) N/A 20.0 ppb (19) N/A 1.0 ppb (2) 17.0 ppb (16) 0.0 ppb (0) N/A 13.5 μg/m3 (54) 54.0
 
June 4, 2021, 8 a.m. 18.4 ppb (18) 0.7 ppb (1) N/A 18.0 ppb (17) N/A 1.0 ppb (2) 23.0 ppb (22) 0.0 ppb (0) N/A 11.3 μg/m3 (48) 48.0
 
June 4, 2021, 7 a.m. 17.2 ppb (17) 0.5 ppb (1) N/A 17.0 ppb (17) N/A 1.0 ppb (2) 27.0 ppb (25) 0.0 ppb (0) N/A 11.1 μg/m3 (47) 47.0
 
June 4, 2021, 6 a.m. 21.3 ppb (21) 0.6 ppb (1) N/A 21.0 ppb (20) N/A 0.0 ppb (0) 24.0 ppb (23) 0.0 ppb (0) N/A 12.2 μg/m3 (52) 52.0
 
June 4, 2021, 5 a.m. 16.2 ppb (16) 0.4 ppb (1) N/A 16.0 ppb (16) N/A 1.0 ppb (2) 33.0 ppb (31) 0.0 ppb (0) N/A 10.1 μg/m3 (43) 43.0
 
June 4, 2021, 4 a.m. 25.5 ppb (25) 0.6 ppb (1) N/A 25.0 ppb (24) N/A 1.0 ppb (2) 26.0 ppb (25) 0.1 ppb (2) N/A 10.7 μg/m3 (45) 45.0
 
June 4, 2021, 3 a.m. 17.7 ppb (17) 0.4 ppb (1) N/A 17.0 ppb (17) N/A 1.0 ppb (2) 36.0 ppb (34) 0.0 ppb (0) N/A 8.2 μg/m3 (35) 35.0
 
June 4, 2021, 2 a.m. 6.2 ppb (6) 0.2 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 59.0 ppb (65) 0.0 ppb (0) N/A 5.6 μg/m3 (24) 65.0
 
June 4, 2021, 1 a.m. 3.1 ppb (3) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 64.0 ppb (81) 0.0 ppb (0) N/A 4.7 μg/m3 (20) 81.0
 
June 4, 2021, midnight 2.2 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 67.0 ppb (91) 0.0 ppb (0) N/A 4.3 μg/m3 (18) 91.0
 
June 3, 2021, 11 p.m. 2.5 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 69.0 ppb (97) 0.0 ppb (0) N/A 4.2 μg/m3 (18) 97.0
 
June 3, 2021, 10 p.m. 2.5 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 67.0 ppb (91) 0.0 ppb (0) N/A 4.3 μg/m3 (18) 91.0
 
June 3, 2021, 9 p.m. 2.8 ppb (3) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 67.0 ppb (91) N/A N/A 5.8 μg/m3 (25) 91.0
 
June 3, 2021, 8 p.m. 3.0 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 67.0 ppb (91) N/A N/A 4.9 μg/m3 (21) 91.0
 
June 3, 2021, 7 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 5.8 μg/m3 (25) 25.0
 
June 3, 2021, 6 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) N/A N/A N/A 8.6 μg/m3 (36) 36.0
 
June 3, 2021, 5 p.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 62.0 ppb (74) 0.0 ppb (0) N/A 10.5 μg/m3 (44) 74.0
 
June 3, 2021, 4 p.m. 19.4 ppb (19) 4.3 ppb (5) N/A 15.0 ppb (15) N/A 1.0 ppb (2) 56.0 ppb (55) 0.0 ppb (0) N/A 9.1 μg/m3 (38) 55.0
 
June 3, 2021, 3 p.m. 35.3 ppb (34) 10.2 ppb (10) N/A 25.0 ppb (24) N/A 2.0 ppb (3) 39.0 ppb (37) 0.1 ppb (2) N/A 12.8 μg/m3 (53) 53.0
 
June 3, 2021, 2 p.m. 51.3 ppb (49) 20.5 ppb (20) N/A 31.0 ppb (30) N/A 1.0 ppb (2) 22.0 ppb (21) 0.2 ppb (3) N/A 18.9 μg/m3 (66) 66.0
 
June 3, 2021, 1 p.m. 66.8 ppb (65) 30.7 ppb (29) N/A 36.0 ppb (34) N/A 1.0 ppb (2) 10.0 ppb (10) 0.3 ppb (4) N/A 24.9 μg/m3 (78) 78.0
 
June 3, 2021, noon 38.5 ppb (37) 11.0 ppb (11) N/A 28.0 ppb (27) N/A 1.0 ppb (2) 5.0 ppb (5) 0.1 ppb (2) N/A 19.9 μg/m3 (68) 68.0
 
June 3, 2021, 11 a.m. 31.4 ppb (30) 3.3 ppb (4) N/A 28.0 ppb (27) N/A 1.0 ppb (2) 4.0 ppb (4) 0.0 ppb (0) N/A 17.6 μg/m3 (63) 63.0
 
June 3, 2021, 10 a.m. 26.8 ppb (26) 1.0 ppb (1) N/A 26.0 ppb (25) N/A 1.0 ppb (2) 6.0 ppb (6) 0.0 ppb (0) N/A 17.3 μg/m3 (62) 62.0
 
June 3, 2021, 9 a.m. 26.7 ppb (26) 0.9 ppb (1) N/A 26.0 ppb (25) N/A 1.0 ppb (2) 7.0 ppb (7) 0.0 ppb (0) N/A 16.9 μg/m3 (62) 62.0
 
June 3, 2021, 8 a.m. 26.4 ppb (25) 1.1 ppb (2) N/A 26.0 ppb (25) N/A 0.0 ppb (0) 8.0 ppb (8) 0.0 ppb (0) N/A 15.2 μg/m3 (58) 58.0
 
June 3, 2021, 7 a.m. 20.6 ppb (20) 0.7 ppb (1) N/A 20.0 ppb (19) N/A 1.0 ppb (2) 15.0 ppb (14) 0.0 ppb (0) N/A 11.0 μg/m3 (46) 46.0
 
June 3, 2021, 6 a.m. 20.3 ppb (20) 0.5 ppb (1) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 18.0 ppb (17) 0.0 ppb (0) N/A 9.3 μg/m3 (39) 39.0
 
June 3, 2021, 5 a.m. 17.1 ppb (17) 0.4 ppb (1) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 27.0 ppb (25) 0.0 ppb (0) N/A 7.6 μg/m3 (32) 32.0
 
June 3, 2021, 4 a.m. 15.2 ppb (15) 0.3 ppb (1) N/A 15.0 ppb (15) N/A 1.0 ppb (2) 36.0 ppb (34) 0.0 ppb (0) N/A 6.1 μg/m3 (26) 34.0
 
June 3, 2021, 3 a.m. 16.2 ppb (16) 0.4 ppb (1) N/A 16.0 ppb (16) N/A 1.0 ppb (2) 38.0 ppb (36) 0.0 ppb (0) N/A 7.3 μg/m3 (31) 36.0
 
June 3, 2021, 2 a.m. 6.6 ppb (7) 0.3 ppb (1) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 54.0 ppb (50) 0.0 ppb (0) N/A 4.8 μg/m3 (20) 50.0
 
June 3, 2021, 1 a.m. 2.3 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 64.0 ppb (81) N/A N/A 4.6 μg/m3 (20) 81.0
 
June 3, 2021, midnight 1.9 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 66.0 ppb (87) N/A N/A 3.8 μg/m3 (16) 87.0
 
June 2, 2021, 11 p.m. 1.6 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 62.0 ppb (74) N/A N/A 2.9 μg/m3 (13) 74.0
 
June 2, 2021, 10 p.m. 1.7 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 60.0 ppb (68) N/A N/A 3.0 μg/m3 (13) 68.0
 
June 2, 2021, 9 p.m. 2.1 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) N/A N/A N/A 3.6 μg/m3 (16) 16.0
 
June 2, 2021, 8 p.m. 2.1 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 3.6 μg/m3 (16) 16.0
 
June 2, 2021, 7 p.m. 3.2 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 70.0 ppb (100) N/A N/A 4.2 μg/m3 (18) 100.0
 
June 2, 2021, 6 p.m. 4.1 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 68.0 ppb (94) 0.1 ppb (2) N/A 4.6 μg/m3 (20) 94.0
 
June 2, 2021, 5 p.m. 7.6 ppb (8) 1.3 ppb (2) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 63.0 ppb (78) 0.1 ppb (2) N/A 5.9 μg/m3 (25) 78.0
 
June 2, 2021, 4 p.m. 23.7 ppb (23) 5.6 ppb (6) N/A 18.0 ppb (17) N/A 3.0 ppb (5) 52.0 ppb (49) 0.2 ppb (3) N/A 8.3 μg/m3 (35) 49.0
 
June 2, 2021, 3 p.m. 39.4 ppb (38) 12.4 ppb (12) N/A 27.0 ppb (26) N/A 3.0 ppb (5) 34.0 ppb (32) 0.3 ppb (4) N/A 14.5 μg/m3 (57) 57.0
 
June 2, 2021, 2 p.m. 20.8 ppb (20) 5.8 ppb (6) N/A 15.0 ppb (15) N/A 1.0 ppb (2) 34.0 ppb (32) 0.2 ppb (3) N/A 7.2 μg/m3 (31) 32.0
 
June 2, 2021, 1 p.m. 20.3 ppb (20) 4.4 ppb (5) N/A 16.0 ppb (16) N/A 1.0 ppb (2) 29.0 ppb (27) 0.2 ppb (3) N/A 7.1 μg/m3 (30) 30.0
 
June 2, 2021, noon 17.3 ppb (17) 1.1 ppb (2) N/A 16.0 ppb (16) N/A 0.0 ppb (0) 29.0 ppb (27) 0.2 ppb (3) N/A 6.4 μg/m3 (27) 27.0
 
June 2, 2021, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 26.0 ppb (25) 0.2 ppb (3) N/A 6.5 μg/m3 (28) 28.0
 
June 2, 2021, 10 a.m. 29.4 ppb (28) 1.5 ppb (2) N/A 28.0 ppb (27) N/A 0.0 ppb (0) 9.0 ppb (9) 0.2 ppb (3) N/A 9.6 μg/m3 (40) 40.0
 
June 2, 2021, 9 a.m. 27.4 ppb (26) 1.1 ppb (2) N/A 26.0 ppb (25) N/A 1.0 ppb (2) 6.0 ppb (6) 0.2 ppb (3) N/A 10.3 μg/m3 (43) 43.0
 
June 2, 2021, 8 a.m. 26.8 ppb (26) 1.0 ppb (1) N/A 26.0 ppb (25) N/A 0.0 ppb (0) 6.0 ppb (6) 0.2 ppb (3) N/A 11.4 μg/m3 (48) 48.0
 
June 2, 2021, 7 a.m. 30.4 ppb (29) 0.9 ppb (1) N/A 30.0 ppb (29) N/A 1.0 ppb (2) 5.0 ppb (5) 0.2 ppb (3) N/A 10.3 μg/m3 (43) 43.0
 
June 2, 2021, 6 a.m. 28.8 ppb (28) 0.6 ppb (1) N/A 28.0 ppb (27) N/A 1.0 ppb (2) 8.0 ppb (8) 0.2 ppb (3) N/A 8.7 μg/m3 (37) 37.0
 
June 2, 2021, 5 a.m. 22.8 ppb (22) 0.5 ppb (1) N/A 22.0 ppb (21) N/A 0.0 ppb (0) 15.0 ppb (14) 0.2 ppb (3) N/A 6.5 μg/m3 (28) 28.0
 
June 2, 2021, 4 a.m. 25.2 ppb (24) 0.7 ppb (1) N/A 25.0 ppb (24) N/A 0.0 ppb (0) 13.0 ppb (13) 0.3 ppb (4) N/A 6.9 μg/m3 (29) 29.0
 
June 2, 2021, 3 a.m. 16.1 ppb (16) 0.4 ppb (1) N/A 16.0 ppb (16) N/A 0.0 ppb (0) 23.0 ppb (22) 0.2 ppb (3) N/A 7.7 μg/m3 (33) 33.0
 
June 2, 2021, 2 a.m. 7.8 ppb (8) 0.4 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 39.0 ppb (37) 0.1 ppb (2) N/A 6.9 μg/m3 (29) 37.0
 
June 2, 2021, 1 a.m. 1.4 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 51.0 ppb (48) 0.0 ppb (0) N/A 2.1 μg/m3 (9) 48.0
 
June 2, 2021, midnight 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
 
June 1, 2021, 11 p.m. 1.5 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 56.0 ppb (55) 0.0 ppb (0) N/A 2.7 μg/m3 (12) 55.0
 
June 1, 2021, 10 p.m. 1.4 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 59.0 ppb (65) 0.0 ppb (0) N/A 5.0 μg/m3 (21) 65.0
 
June 1, 2021, 9 p.m. 1.4 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 59.0 ppb (65) 0.0 ppb (0) N/A 3.9 μg/m3 (17) 65.0
 
June 1, 2021, 8 p.m. 1.9 ppb (2) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 61.0 ppb (71) 0.1 ppb (2) N/A 2.9 μg/m3 (13) 71.0
 
June 1, 2021, 7 p.m. 2.5 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 67.0 ppb (91) 0.0 ppb (0) N/A 4.1 μg/m3 (18) 91.0
 
June 1, 2021, 6 p.m. 5.5 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 64.0 ppb (81) 0.0 ppb (0) N/A 5.1 μg/m3 (22) 81.0
 
June 1, 2021, 5 p.m. 10.1 ppb (10) 2.3 ppb (3) N/A 8.0 ppb (8) N/A 2.0 ppb (3) 56.0 ppb (55) 0.0 ppb (0) N/A 5.8 μg/m3 (25) 55.0
 
June 1, 2021, 4 p.m. 19.2 ppb (19) 4.8 ppb (5) N/A 14.0 ppb (14) N/A 2.0 ppb (3) 47.0 ppb (44) 0.0 ppb (0) N/A 7.8 μg/m3 (33) 44.0
 
June 1, 2021, 3 p.m. 27.3 ppb (26) 7.8 ppb (8) N/A 20.0 ppb (19) N/A 1.0 ppb (2) 38.0 ppb (36) 0.1 ppb (2) N/A 9.7 μg/m3 (41) 41.0
 
June 1, 2021, 2 p.m. 30.4 ppb (29) 9.8 ppb (10) N/A 21.0 ppb (20) N/A 1.0 ppb (2) 28.0 ppb (26) 0.1 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
June 1, 2021, 1 p.m. 27.3 ppb (26) 7.9 ppb (8) N/A 19.0 ppb (18) N/A 1.0 ppb (2) 20.0 ppb (19) 0.1 ppb (2) N/A 9.3 μg/m3 (39) 39.0
 
June 1, 2021, noon 23.4 ppb (23) 3.7 ppb (4) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 13.0 ppb (13) 0.1 ppb (2) N/A 9.3 μg/m3 (39) 39.0
 
June 1, 2021, 11 a.m. 17.3 ppb (17) 0.5 ppb (1) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 7.7 μg/m3 (33) 33.0
 
June 1, 2021, 10 a.m. 14.8 ppb (14) 0.4 ppb (1) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 28.0 ppb (26) 0.0 ppb (0) N/A 5.8 μg/m3 (25) 26.0
 
June 1, 2021, 9 a.m. 18.5 ppb (18) 0.6 ppb (1) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 20.0 ppb (19) 0.0 ppb (0) N/A 7.3 μg/m3 (31) 31.0
 
June 1, 2021, 8 a.m. 22.9 ppb (22) 0.9 ppb (1) N/A 22.0 ppb (21) N/A 1.0 ppb (2) 11.0 ppb (11) 0.1 ppb (2) N/A 8.8 μg/m3 (37) 37.0