AQSQID: 490353010

Site Name: Rose Park

Location: Salt Lake City (Rose Park), UT

Reporting: True, Located: True

Current AQI: 43.0

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
April 8, 2020, 3 p.m. 46.7 ppb (43) 22.8 ppb (21) N/A 24.0 ppb (22) N/A 2.0 ppb (3) 17.0 ppb (13) 0.0 ppb (0) N/A 8.9 μg/m3 (37) 43.0
 
April 8, 2020, 2 p.m. 107.1 ppb (101) 73.1 ppb (70) N/A 34.0 ppb (31) N/A 2.0 ppb (3) 5.0 ppb (4) 0.3 ppb (3) N/A 16.7 μg/m3 (60) 101.0
 
April 8, 2020, 1 p.m. 79.6 ppb (77) 50.3 ppb (47) N/A 30.0 ppb (28) N/A 1.0 ppb (1) 1.0 ppb (1) 0.3 ppb (3) N/A 11.6 μg/m3 (48) 77.0
 
April 8, 2020, noon 64.2 ppb (61) 33.1 ppb (31) N/A 31.0 ppb (29) N/A 0.0 ppb (0) 0.0 ppb (0) 0.2 ppb (2) N/A 11.2 μg/m3 (47) 61.0
 
April 8, 2020, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 0.0 ppb (0) 0.1 ppb (1) N/A 11.0 μg/m3 (46) 46.0
 
April 8, 2020, 10 a.m. 27.5 ppb (25) 2.3 ppb (2) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 3.0 ppb (2) 0.0 ppb (0) N/A 8.1 μg/m3 (34) 34.0
 
April 8, 2020, 9 a.m. 27.8 ppb (26) 2.1 ppb (2) N/A 26.0 ppb (24) N/A 0.0 ppb (0) 3.0 ppb (2) 0.0 ppb (0) N/A 8.5 μg/m3 (35) 35.0
 
April 8, 2020, 8 a.m. 26.8 ppb (25) 1.1 ppb (1) N/A 26.0 ppb (24) N/A 0.0 ppb (0) 4.0 ppb (3) 0.0 ppb (0) N/A 9.3 μg/m3 (39) 39.0
 
April 8, 2020, 7 a.m. 32.7 ppb (30) 4.1 ppb (4) N/A 29.0 ppb (27) N/A 0.0 ppb (0) 3.0 ppb (2) 0.1 ppb (1) N/A 11.8 μg/m3 (49) 49.0
 
April 8, 2020, 6 a.m. 39.2 ppb (36) 7.8 ppb (7) N/A 31.0 ppb (29) N/A 0.0 ppb (0) 1.0 ppb (1) 0.2 ppb (2) N/A 15.1 μg/m3 (57) 57.0
 
April 8, 2020, 5 a.m. 35.1 ppb (32) 3.6 ppb (3) N/A 31.0 ppb (29) N/A 0.0 ppb (0) 1.0 ppb (1) 0.0 ppb (0) N/A 9.4 μg/m3 (39) 39.0
 
April 8, 2020, 4 a.m. 33.4 ppb (31) 1.3 ppb (1) N/A 32.0 ppb (30) N/A 0.0 ppb (0) 5.0 ppb (4) 0.0 ppb (0) N/A 8.6 μg/m3 (36) 36.0
 
April 8, 2020, 3 a.m. 23.2 ppb (21) 0.8 ppb (1) N/A 22.0 ppb (20) N/A 0.0 ppb (0) 13.0 ppb (10) 0.0 ppb (0) N/A 6.2 μg/m3 (26) 26.0
 
April 8, 2020, 2 a.m. 7.6 ppb (7) 0.1 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 28.0 ppb (22) 0.0 ppb (0) N/A 4.9 μg/m3 (20) 22.0
 
April 8, 2020, 1 a.m. 2.2 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (28) 0.0 ppb (0) N/A 3.4 μg/m3 (14) 28.0
 
April 8, 2020, midnight 1.3 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (30) 0.0 ppb (0) N/A 3.4 μg/m3 (14) 30.0
 
April 7, 2020, 11 p.m. 1.5 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (33) 0.0 ppb (0) N/A 4.3 μg/m3 (18) 33.0
 
April 7, 2020, 10 p.m. 2.2 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 44.0 ppb (34) 0.0 ppb (0) N/A 5.3 μg/m3 (22) 34.0
 
April 7, 2020, 9 p.m. 2.8 ppb (3) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 43.0 ppb (33) 0.0 ppb (0) N/A 5.4 μg/m3 (23) 33.0
 
April 7, 2020, 8 p.m. 3.2 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 42.0 ppb (32) 0.0 ppb (0) N/A 5.3 μg/m3 (22) 32.0
 
April 7, 2020, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 42.0 ppb (32) 0.0 ppb (0) N/A 4.8 μg/m3 (20) 32.0
 
April 7, 2020, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (32) 0.0 ppb (0) N/A 4.8 μg/m3 (20) 32.0
 
April 7, 2020, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.0 ppb (0) N/A 4.3 μg/m3 (18) 31.0
 
April 7, 2020, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.0 ppb (0) N/A 4.9 μg/m3 (20) 29.0
 
April 7, 2020, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.0 ppb (0) N/A N/A 23.0
 
April 7, 2020, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (18) 0.0 ppb (0) N/A 6.6 μg/m3 (28) 28.0
 
April 7, 2020, 1 p.m. 12.3 ppb (11) 0.7 ppb (1) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 25.0 ppb (19) 0.0 ppb (0) N/A 5.8 μg/m3 (24) 24.0
 
April 7, 2020, noon 23.3 ppb (22) 1.8 ppb (2) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 15.0 ppb (12) 0.0 ppb (0) N/A 6.8 μg/m3 (28) 28.0
 
April 7, 2020, 11 a.m. 15.5 ppb (14) 0.8 ppb (1) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A 6.4 μg/m3 (27) 27.0
 
April 7, 2020, 10 a.m. 13.6 ppb (13) 0.3 ppb (0) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 23.0 ppb (18) 0.0 ppb (0) N/A 5.8 μg/m3 (24) 24.0
 
April 7, 2020, 9 a.m. 8.3 ppb (8) 0.2 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 30.0 ppb (23) 0.0 ppb (0) N/A 5.5 μg/m3 (23) 23.0
 
April 7, 2020, 8 a.m. 6.1 ppb (6) 0.1 ppb (0) N/A 6.0 ppb (6) N/A 1.0 ppb (1) 33.0 ppb (25) 0.0 ppb (0) N/A 5.8 μg/m3 (24) 25.0
 
April 7, 2020, 7 a.m. 4.6 ppb (4) 0.1 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 36.0 ppb (28) 0.0 ppb (0) N/A 6.1 μg/m3 (25) 28.0
 
April 7, 2020, 6 a.m. 3.6 ppb (3) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 39.0 ppb (30) 0.0 ppb (0) N/A 5.8 μg/m3 (24) 30.0
 
April 7, 2020, 5 a.m. 5.8 ppb (5) 0.1 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 36.0 ppb (28) 0.0 ppb (0) N/A 6.5 μg/m3 (27) 28.0
 
April 7, 2020, 4 a.m. 3.7 ppb (3) 0.1 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 39.0 ppb (30) 0.0 ppb (0) N/A 6.2 μg/m3 (26) 30.0
 
April 7, 2020, 3 a.m. 5.1 ppb (5) 0.1 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 38.0 ppb (29) 0.0 ppb (0) N/A 6.6 μg/m3 (28) 29.0
 
April 7, 2020, 2 a.m. 4.9 ppb (5) 0.2 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 38.0 ppb (29) 0.0 ppb (0) N/A 6.2 μg/m3 (26) 29.0
 
April 7, 2020, 1 a.m. 2.4 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 41.0 ppb (32) 0.0 ppb (0) N/A 6.8 μg/m3 (28) 32.0
 
April 7, 2020, midnight 3.8 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 36.0 ppb (28) 0.0 ppb (0) N/A 5.6 μg/m3 (23) 28.0
 
April 6, 2020, 11 p.m. 3.2 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 40.0 ppb (31) 0.0 ppb (0) N/A 5.2 μg/m3 (22) 31.0
 
April 6, 2020, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 42.0 ppb (32) 0.0 ppb (0) N/A 5.9 μg/m3 (25) 32.0
 
April 6, 2020, 9 p.m. 2.7 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 42.0 ppb (32) 0.0 ppb (0) N/A 5.8 μg/m3 (24) 32.0
 
April 6, 2020, 8 p.m. 2.5 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 42.0 ppb (32) 0.0 ppb (0) N/A 6.1 μg/m3 (25) 32.0
 
April 6, 2020, 7 p.m. 3.8 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 40.0 ppb (31) 0.0 ppb (0) N/A 5.4 μg/m3 (23) 31.0
 
April 6, 2020, 6 p.m. 4.1 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 39.0 ppb (30) 0.0 ppb (0) N/A 5.3 μg/m3 (22) 30.0
 
April 6, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) 0.0 ppb (0) N/A 4.9 μg/m3 (20) 30.0
 
April 6, 2020, 4 p.m. 4.4 ppb (4) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A 37.0 ppb (28) 0.0 ppb (0) N/A 4.8 μg/m3 (20) 28.0
 
April 6, 2020, 3 p.m. 7.3 ppb (7) 1.2 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 34.0 ppb (26) 0.0 ppb (0) N/A 4.9 μg/m3 (20) 26.0
 
April 6, 2020, 2 p.m. 15.1 ppb (14) 1.8 ppb (2) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 26.0 ppb (20) 0.0 ppb (0) N/A 5.3 μg/m3 (22) 22.0
 
April 6, 2020, 1 p.m. 13.3 ppb (12) 0.7 ppb (1) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 26.0 ppb (20) 0.0 ppb (0) N/A 4.7 μg/m3 (20) 20.0
 
April 6, 2020, noon 6.1 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 33.0 ppb (25) 0.0 ppb (0) N/A 3.9 μg/m3 (16) 25.0
 
April 6, 2020, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.0 ppb (0) N/A 3.7 μg/m3 (15) 28.0
 
April 6, 2020, 10 a.m. 1.5 ppb (1) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (30) 0.0 ppb (0) N/A 3.7 μg/m3 (15) 30.0
 
April 6, 2020, 9 a.m. 2.3 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 40.0 ppb (31) 0.0 ppb (0) N/A 3.9 μg/m3 (16) 31.0
 
April 6, 2020, 8 a.m. 2.7 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 41.0 ppb (32) 0.0 ppb (0) N/A 4.5 μg/m3 (19) 32.0
 
April 6, 2020, 7 a.m. 2.8 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 42.0 ppb (32) 0.0 ppb (0) N/A 4.8 μg/m3 (20) 32.0
 
April 6, 2020, 6 a.m. 2.4 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 44.0 ppb (34) 0.0 ppb (0) N/A 4.7 μg/m3 (20) 34.0
 
April 6, 2020, 5 a.m. 2.2 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 45.0 ppb (35) 0.0 ppb (0) N/A 5.2 μg/m3 (22) 35.0
 
April 6, 2020, 4 a.m. 3.1 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 44.0 ppb (34) 0.0 ppb (0) N/A 6.1 μg/m3 (25) 34.0
 
April 6, 2020, 3 a.m. 3.6 ppb (3) 0.2 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 44.0 ppb (34) 0.0 ppb (0) N/A 6.6 μg/m3 (28) 34.0
 
April 6, 2020, 2 a.m. 4.2 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 44.0 ppb (34) 0.0 ppb (0) N/A 8.0 μg/m3 (33) 34.0
 
April 6, 2020, 1 a.m. 3.2 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 45.0 ppb (35) 0.0 ppb (0) N/A 8.7 μg/m3 (36) 36.0
 
April 6, 2020, midnight 1.9 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 45.0 ppb (35) 0.0 ppb (0) N/A 8.5 μg/m3 (35) 35.0
 
April 5, 2020, 11 p.m. 1.8 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 45.0 ppb (35) 0.0 ppb (0) N/A 8.4 μg/m3 (35) 35.0
 
April 5, 2020, 10 p.m. 2.2 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 45.0 ppb (35) 0.0 ppb (0) N/A 6.8 μg/m3 (28) 35.0
 
April 5, 2020, 9 p.m. 3.0 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 43.0 ppb (33) 0.0 ppb (0) N/A 5.4 μg/m3 (23) 33.0
 
April 5, 2020, 8 p.m. 1.9 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 44.0 ppb (34) 0.0 ppb (0) N/A 5.5 μg/m3 (23) 34.0
 
April 5, 2020, 7 p.m. 2.1 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 45.0 ppb (35) 0.0 ppb (0) N/A 5.0 μg/m3 (21) 35.0
 
April 5, 2020, 6 p.m. 2.4 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 45.0 ppb (35) 0.0 ppb (0) N/A 4.9 μg/m3 (20) 35.0
 
April 5, 2020, 5 p.m. 3.3 ppb (3) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 44.0 ppb (34) 0.0 ppb (0) N/A 4.7 μg/m3 (20) 34.0
 
April 5, 2020, 4 p.m. 12.4 ppb (11) 3.6 ppb (3) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 31.0 ppb (24) 0.0 ppb (0) N/A 5.1 μg/m3 (21) 24.0
 
April 5, 2020, 3 p.m. 13.0 ppb (12) 3.2 ppb (3) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 22.0 ppb (17) 0.0 ppb (0) N/A 5.2 μg/m3 (22) 22.0
 
April 5, 2020, 2 p.m. 11.5 ppb (11) 1.4 ppb (1) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 18.0 ppb (14) 0.0 ppb (0) N/A 5.2 μg/m3 (22) 22.0
 
April 5, 2020, 1 p.m. 13.8 ppb (13) 0.6 ppb (1) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 20.0 ppb (15) 0.0 ppb (0) N/A 4.3 μg/m3 (18) 18.0
 
April 5, 2020, noon 12.9 ppb (12) 0.6 ppb (1) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 21.0 ppb (16) 0.0 ppb (0) N/A 3.9 μg/m3 (16) 16.0
 
April 5, 2020, 11 a.m. 7.3 ppb (7) 0.4 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A 0.0 ppb (0) N/A 3.7 μg/m3 (15) 15.0
 
April 5, 2020, 10 a.m. 5.4 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 31.0 ppb (24) 0.0 ppb (0) N/A 3.9 μg/m3 (16) 24.0
 
April 5, 2020, 9 a.m. 5.6 ppb (5) 0.3 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 34.0 ppb (26) 0.0 ppb (0) N/A 3.7 μg/m3 (15) 26.0
 
April 5, 2020, 8 a.m. 2.4 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 40.0 ppb (31) 0.0 ppb (0) N/A 4.0 μg/m3 (17) 31.0
 
April 5, 2020, 7 a.m. 2.7 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 41.0 ppb (32) 0.0 ppb (0) N/A 3.8 μg/m3 (16) 32.0
 
April 5, 2020, 6 a.m. 6.4 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 38.0 ppb (29) 0.0 ppb (0) N/A 4.3 μg/m3 (18) 29.0
 
April 5, 2020, 5 a.m. 18.7 ppb (17) 0.9 ppb (1) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 27.0 ppb (21) 0.1 ppb (1) N/A 8.8 μg/m3 (37) 37.0
 
April 5, 2020, 4 a.m. 37.3 ppb (35) 3.4 ppb (3) N/A 34.0 ppb (31) N/A 0.0 ppb (0) 7.0 ppb (5) 0.4 ppb (4) N/A 28.0 μg/m3 (84) 84.0
 
April 5, 2020, 3 a.m. 20.6 ppb (19) 0.9 ppb (1) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 21.0 ppb (16) 0.2 ppb (2) N/A 16.3 μg/m3 (59) 59.0
 
April 5, 2020, 2 a.m. 13.5 ppb (12) 0.5 ppb (0) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 33.0 ppb (25) 0.1 ppb (1) N/A 14.1 μg/m3 (54) 54.0
 
April 5, 2020, 1 a.m. 7.1 ppb (7) 0.4 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 44.0 ppb (34) 0.0 ppb (0) N/A 7.5 μg/m3 (31) 34.0
 
April 5, 2020, midnight 4.3 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 49.0 ppb (38) 0.0 ppb (0) N/A 8.4 μg/m3 (35) 38.0
 
April 4, 2020, 11 p.m. 3.7 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 50.0 ppb (38) 0.0 ppb (0) N/A 8.8 μg/m3 (37) 38.0
 
April 4, 2020, 10 p.m. 4.3 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 49.0 ppb (38) 0.0 ppb (0) N/A 9.0 μg/m3 (38) 38.0
 
April 4, 2020, 9 p.m. 4.5 ppb (4) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 47.0 ppb (36) 0.0 ppb (0) N/A 8.3 μg/m3 (35) 36.0
 
April 4, 2020, 8 p.m. 4.2 ppb (4) 1.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 45.0 ppb (35) 0.0 ppb (0) N/A 5.4 μg/m3 (23) 35.0
 
April 4, 2020, 7 p.m. 4.5 ppb (4) 1.3 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 43.0 ppb (33) 0.0 ppb (0) N/A 4.6 μg/m3 (19) 33.0
 
April 4, 2020, 6 p.m. 5.7 ppb (5) 1.7 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 42.0 ppb (32) 0.0 ppb (0) N/A 4.9 μg/m3 (20) 32.0
 
April 4, 2020, 5 p.m. 9.9 ppb (9) 3.3 ppb (3) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 40.0 ppb (31) 0.0 ppb (0) N/A 5.0 μg/m3 (21) 31.0
 
April 4, 2020, 4 p.m. 15.0 ppb (14) 5.3 ppb (5) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 36.0 ppb (28) 0.0 ppb (0) N/A 5.1 μg/m3 (21) 28.0
 
April 4, 2020, 3 p.m. 27.4 ppb (25) 10.4 ppb (10) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 26.0 ppb (20) 0.1 ppb (1) N/A 6.7 μg/m3 (28) 28.0
 
April 4, 2020, 2 p.m. 46.7 ppb (43) 19.4 ppb (18) N/A 27.0 ppb (25) N/A 0.0 ppb (0) 14.0 ppb (11) 0.1 ppb (1) N/A 7.4 μg/m3 (31) 43.0
 
April 4, 2020, 1 p.m. 76.8 ppb (74) 37.9 ppb (35) N/A 39.0 ppb (36) N/A 1.0 ppb (1) 1.0 ppb (1) 0.4 ppb (4) N/A 7.3 μg/m3 (30) 74.0
 
April 4, 2020, noon 55.7 ppb (52) 18.5 ppb (17) N/A 37.0 ppb (34) N/A 0.0 ppb (0) 0.0 ppb (0) 0.3 ppb (3) N/A 5.4 μg/m3 (23) 52.0
 
April 4, 2020, 11 a.m. 44.4 ppb (41) 9.1 ppb (8) N/A 35.0 ppb (32) N/A N/A 0.0 ppb (0) 0.2 ppb (2) N/A 5.4 μg/m3 (23) 41.0
 
April 4, 2020, 10 a.m. 32.7 ppb (30) 2.6 ppb (2) N/A 30.0 ppb (28) N/A 0.0 ppb (0) 4.0 ppb (3) 0.1 ppb (1) N/A 5.1 μg/m3 (21) 30.0
 
April 4, 2020, 9 a.m. 29.2 ppb (27) 1.7 ppb (2) N/A 27.0 ppb (25) N/A 0.0 ppb (0) 9.0 ppb (7) 0.1 ppb (1) N/A 5.1 μg/m3 (21) 27.0
 
April 4, 2020, 8 a.m. 32.3 ppb (30) 2.8 ppb (3) N/A 29.0 ppb (27) N/A 0.0 ppb (0) 6.0 ppb (5) 0.1 ppb (1) N/A 5.9 μg/m3 (25) 30.0
 
April 4, 2020, 7 a.m. 21.1 ppb (20) 0.7 ppb (1) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 18.0 ppb (14) 0.1 ppb (1) N/A 5.0 μg/m3 (21) 21.0
 
April 4, 2020, 6 a.m. 27.6 ppb (26) 1.4 ppb (1) N/A 26.0 ppb (24) N/A 0.0 ppb (0) 13.0 ppb (10) 0.2 ppb (2) N/A 7.3 μg/m3 (30) 30.0
 
April 4, 2020, 5 a.m. 25.9 ppb (24) 1.4 ppb (1) N/A 24.0 ppb (22) N/A 0.0 ppb (0) 16.0 ppb (12) 0.2 ppb (2) N/A 8.8 μg/m3 (37) 37.0
 
April 4, 2020, 4 a.m. 20.3 ppb (19) 0.8 ppb (1) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 21.0 ppb (16) 0.1 ppb (1) N/A 6.8 μg/m3 (28) 28.0
 
April 4, 2020, 3 a.m. 11.4 ppb (11) 0.3 ppb (0) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 31.0 ppb (24) 0.0 ppb (0) N/A 4.9 μg/m3 (20) 24.0
 
April 4, 2020, 2 a.m. 5.2 ppb (5) 0.2 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 39.0 ppb (30) 0.0 ppb (0) N/A 2.7 μg/m3 (11) 30.0
 
April 4, 2020, 1 a.m. 2.8 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 44.0 ppb (34) 0.0 ppb (0) N/A 2.0 μg/m3 (8) 34.0
 
April 4, 2020, midnight 2.6 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 46.0 ppb (35) 0.0 ppb (0) N/A 1.7 μg/m3 (7) 35.0
 
April 3, 2020, 11 p.m. 2.1 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 46.0 ppb (35) 0.0 ppb (0) N/A 1.6 μg/m3 (7) 35.0
 
April 3, 2020, 10 p.m. 2.7 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 45.0 ppb (35) 0.0 ppb (0) N/A 2.3 μg/m3 (10) 35.0
 
April 3, 2020, 9 p.m. 4.3 ppb (4) 1.4 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 44.0 ppb (34) 0.0 ppb (0) N/A 2.5 μg/m3 (10) 34.0
 
April 3, 2020, 8 p.m. 5.0 ppb (5) 1.7 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 45.0 ppb (35) 0.0 ppb (0) N/A 2.5 μg/m3 (10) 35.0
 
April 3, 2020, 7 p.m. 5.2 ppb (5) 1.9 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 44.0 ppb (34) 0.0 ppb (0) N/A 2.1 μg/m3 (9) 34.0
 
April 3, 2020, 6 p.m. 6.1 ppb (6) 2.2 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 43.0 ppb (33) 0.0 ppb (0) N/A 1.8 μg/m3 (8) 33.0
 
April 3, 2020, 5 p.m. 7.6 ppb (7) 2.9 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 41.0 ppb (32) 0.0 ppb (0) N/A 1.8 μg/m3 (8) 32.0
 
April 3, 2020, 4 p.m. 10.5 ppb (10) 3.8 ppb (4) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 38.0 ppb (29) 0.0 ppb (0) N/A 1.9 μg/m3 (8) 29.0
 
April 3, 2020, 3 p.m. 12.2 ppb (11) 4.1 ppb (4) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 36.0 ppb (28) 0.0 ppb (0) N/A 1.9 μg/m3 (8) 28.0
 
April 3, 2020, 2 p.m. 39.2 ppb (36) 14.1 ppb (13) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 20.0 ppb (15) 0.2 ppb (2) N/A 3.5 μg/m3 (15) 36.0
 
April 3, 2020, 1 p.m. 66.6 ppb (63) 27.3 ppb (25) N/A 39.0 ppb (36) N/A 0.0 ppb (0) 3.0 ppb (2) 0.4 ppb (4) N/A 3.8 μg/m3 (16) 63.0
 
April 3, 2020, noon 69.4 ppb (66) 29.3 ppb (27) N/A 40.0 ppb (37) N/A 0.0 ppb (0) 0.0 ppb (0) 0.5 ppb (6) N/A 3.6 μg/m3 (15) 66.0
 
April 3, 2020, 11 a.m. 51.3 ppb (48) 13.3 ppb (12) N/A 38.0 ppb (35) N/A 0.0 ppb (0) 1.0 ppb (1) 0.3 ppb (3) N/A 3.6 μg/m3 (15) 48.0
 
April 3, 2020, 10 a.m. 40.4 ppb (37) 6.2 ppb (6) N/A 34.0 ppb (31) N/A 0.0 ppb (0) 3.0 ppb (2) 0.1 ppb (1) N/A 3.2 μg/m3 (13) 37.0
 
April 3, 2020, 9 a.m. 18.0 ppb (17) 1.1 ppb (1) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 20.0 ppb (15) 0.1 ppb (1) N/A 2.4 μg/m3 (10) 17.0
 
April 3, 2020, 8 a.m. 9.9 ppb (9) 0.8 ppb (1) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 31.0 ppb (24) 0.0 ppb (0) N/A 1.4 μg/m3 (6) 24.0
 
April 3, 2020, 7 a.m. 16.6 ppb (15) 1.7 ppb (2) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 26.0 ppb (20) 0.0 ppb (0) N/A 3.6 μg/m3 (15) 20.0
 
April 3, 2020, 6 a.m. 13.6 ppb (13) 0.6 ppb (1) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 25.0 ppb (19) 0.0 ppb (0) N/A 1.4 μg/m3 (6) 19.0
 
April 3, 2020, 5 a.m. 19.5 ppb (18) 1.1 ppb (1) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 20.0 ppb (15) 0.1 ppb (1) N/A 4.3 μg/m3 (18) 18.0
 
April 3, 2020, 4 a.m. 32.7 ppb (30) 2.3 ppb (2) N/A 30.0 ppb (28) N/A 0.0 ppb (0) 8.0 ppb (6) 0.1 ppb (1) N/A 12.8 μg/m3 (52) 52.0
 
April 3, 2020, 3 a.m. 17.2 ppb (16) 0.8 ppb (1) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 22.0 ppb (17) 0.1 ppb (1) N/A 3.8 μg/m3 (16) 17.0
 
April 3, 2020, 2 a.m. 4.3 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 38.0 ppb (29) 0.0 ppb (0) N/A 0.6 μg/m3 (2) 29.0
 
April 3, 2020, 1 a.m. 1.4 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (33) 0.0 ppb (0) N/A 0.3 μg/m3 (1) 33.0
 
April 3, 2020, midnight 0.9 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 46.0 ppb (35) 0.0 ppb (0) N/A 0.4 μg/m3 (2) 35.0
 
April 2, 2020, 11 p.m. 1.0 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 45.0 ppb (35) 0.0 ppb (0) N/A 0.4 μg/m3 (2) 35.0
 
April 2, 2020, 10 p.m. 0.9 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (33) 0.0 ppb (0) N/A 0.5 μg/m3 (2) 33.0
 
April 2, 2020, 9 p.m. 1.2 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (32) 0.0 ppb (0) N/A 0.8 μg/m3 (3) 32.0
 
April 2, 2020, 8 p.m. 3.4 ppb (3) 1.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 41.0 ppb (32) 0.0 ppb (0) N/A 1.2 μg/m3 (5) 32.0
 
April 2, 2020, 7 p.m. 1.9 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 40.0 ppb (31) 0.0 ppb (0) N/A 1.0 μg/m3 (4) 31.0
 
April 2, 2020, 6 p.m. 1.5 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 40.0 ppb (31) 0.0 ppb (0) N/A 1.0 μg/m3 (4) 31.0
 
April 2, 2020, 5 p.m. 1.8 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (30) 0.0 ppb (0) N/A 1.2 μg/m3 (5) 30.0
 
April 2, 2020, 4 p.m. 2.1 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (29) 0.0 ppb (0) N/A 1.2 μg/m3 (5) 29.0
 
April 2, 2020, 3 p.m. 2.2 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (28) 0.0 ppb (0) N/A 1.1 μg/m3 (5) 28.0
 
April 2, 2020, 2 p.m. 12.3 ppb (11) 2.7 ppb (3) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 31.0 ppb (24) 0.0 ppb (0) N/A 2.0 μg/m3 (8) 24.0
 
April 2, 2020, 1 p.m. 12.2 ppb (11) 0.9 ppb (1) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 28.0 ppb (22) 0.0 ppb (0) N/A 2.1 μg/m3 (9) 22.0
 
April 2, 2020, noon 16.2 ppb (15) 0.9 ppb (1) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 25.0 ppb (19) 0.0 ppb (0) N/A 5.5 μg/m3 (23) 23.0
 
April 2, 2020, 11 a.m. 6.8 ppb (6) 0.7 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 35.0 ppb (27) 0.0 ppb (0) N/A 4.0 μg/m3 (17) 27.0
 
April 2, 2020, 10 a.m. 5.8 ppb (5) 0.2 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 36.0 ppb (28) 0.0 ppb (0) N/A 2.6 μg/m3 (11) 28.0
 
April 2, 2020, 9 a.m. 6.8 ppb (6) 0.4 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 37.0 ppb (28) 0.0 ppb (0) N/A 3.2 μg/m3 (13) 28.0
 
April 2, 2020, 8 a.m. 4.2 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 40.0 ppb (31) 0.0 ppb (0) N/A 2.6 μg/m3 (11) 31.0
 
April 2, 2020, 7 a.m. 1.8 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 1.7 μg/m3 (7) 31.0
 
April 2, 2020, 6 a.m. 1.8 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 1.3 μg/m3 (5) 29.0
 
April 2, 2020, 5 a.m. 2.2 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 1.3 μg/m3 (5) 30.0
 
April 2, 2020, 4 a.m. 2.5 ppb (2) 0.1 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 39.0 ppb (30) 0.0 ppb (0) N/A 1.1 μg/m3 (5) 30.0
 
April 2, 2020, 3 a.m. 1.2 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 1.0 μg/m3 (4) 30.0
 
April 2, 2020, 2 a.m. 2.8 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 39.0 ppb (30) 0.0 ppb (0) N/A 1.4 μg/m3 (6) 30.0
 
April 2, 2020, 1 a.m. 2.0 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (28) 0.0 ppb (0) N/A 2.0 μg/m3 (8) 28.0
 
April 2, 2020, midnight 2.3 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (28) 0.0 ppb (0) N/A 3.3 μg/m3 (14) 28.0
 
April 1, 2020, 11 p.m. 2.5 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 41.0 ppb (32) 0.0 ppb (0) N/A 4.2 μg/m3 (18) 32.0
 
April 1, 2020, 10 p.m. 1.9 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 2.9 μg/m3 (12) 30.0
 
April 1, 2020, 9 p.m. 2.3 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 4.4 μg/m3 (18) 31.0
 
April 1, 2020, 8 p.m. 2.6 ppb (2) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 4.3 μg/m3 (18) 31.0
 
April 1, 2020, 7 p.m. 3.0 ppb (3) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 39.0 ppb (30) 0.0 ppb (0) N/A 8.0 μg/m3 (33) 33.0
 
April 1, 2020, 6 p.m. 6.0 ppb (6) 1.4 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 40.0 ppb (31) 0.0 ppb (0) N/A 17.9 μg/m3 (63) 63.0
 
April 1, 2020, 5 p.m. 12.3 ppb (11) 3.8 ppb (4) N/A 9.0 ppb (8) N/A 1.0 ppb (1) 33.0 ppb (25) 0.0 ppb (0) N/A 13.9 μg/m3 (54) 54.0
 
April 1, 2020, 4 p.m. 22.9 ppb (21) 10.0 ppb (9) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 23.0 ppb (18) 0.0 ppb (0) N/A 3.4 μg/m3 (14) 21.0