ID: 1266

AQSQID: 490110004

Site Name: Bv

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

Updated: Sept. 20, 2021, 4:58 p.m.

Location: Bountiful (Wayne Cooper), UT

Reporting: True, Located: True

Current AQI: 31.0

Bountiful (Wayne Cooper) UT, US: 40.897999, -111.885498

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 20, 2021, 3 p.m. 8.1 ppb (8) 2.6 ppb (3) N/A 5.0 ppb (5) N/A N/A 33.0 ppb (31) N/A N/A 3.0 μg/m3 (13) 31.0
 
Sept. 20, 2021, 2 p.m. 29.0 ppb (28) 9.7 ppb (10) N/A 19.0 ppb (18) N/A N/A 16.0 ppb (15) N/A N/A 3.4 μg/m3 (15) 28.0
 
Sept. 20, 2021, 1 p.m. 13.9 ppb (14) 2.8 ppb (3) N/A 11.0 ppb (11) N/A N/A 22.0 ppb (21) N/A N/A 2.3 μg/m3 (10) 21.0
 
Sept. 20, 2021, noon 4.1 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 30.0 ppb (28) N/A N/A 1.6 μg/m3 (7) 28.0
 
Sept. 20, 2021, 11 a.m. 2.4 ppb (3) 0.8 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
 
Sept. 20, 2021, 10 a.m. 2.0 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A N/A 33.0 ppb (31) N/A N/A 1.5 μg/m3 (7) 31.0
 
Sept. 20, 2021, 9 a.m. 2.1 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A N/A 34.0 ppb (32) N/A N/A 1.4 μg/m3 (6) 32.0
 
Sept. 20, 2021, 8 a.m. 2.8 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (31) N/A N/A 1.9 μg/m3 (8) 31.0
 
Sept. 20, 2021, 7 a.m. 2.5 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (31) N/A N/A 1.8 μg/m3 (8) 31.0
 
Sept. 20, 2021, 6 a.m. 3.7 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (30) N/A N/A 2.3 μg/m3 (10) 30.0
 
Sept. 20, 2021, 5 a.m. 5.4 ppb (6) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 31.0 ppb (29) N/A N/A 2.6 μg/m3 (11) 29.0
 
Sept. 20, 2021, 4 a.m. 11.0 ppb (11) 0.9 ppb (1) N/A 10.0 ppb (10) N/A N/A 28.0 ppb (26) N/A N/A 2.6 μg/m3 (11) 26.0
 
Sept. 20, 2021, 3 a.m. 6.7 ppb (7) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A 37.0 ppb (35) N/A N/A 2.9 μg/m3 (13) 35.0
 
Sept. 20, 2021, 2 a.m. 5.3 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 39.0 ppb (37) N/A N/A 2.5 μg/m3 (11) 37.0
 
Sept. 20, 2021, 1 a.m. 4.9 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A 40.0 ppb (38) N/A N/A 1.8 μg/m3 (8) 38.0
 
Sept. 20, 2021, midnight 3.8 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 43.0 ppb (40) N/A N/A 1.2 μg/m3 (5) 40.0
 
Sept. 19, 2021, 11 p.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (39) N/A N/A 1.3 μg/m3 (6) 39.0
 
Sept. 19, 2021, 10 p.m. 3.3 ppb (4) 1.1 ppb (2) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (38) N/A N/A 2.5 μg/m3 (11) 38.0
 
Sept. 19, 2021, 9 p.m. 2.9 ppb (3) 1.1 ppb (2) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (38) N/A N/A 5.2 μg/m3 (22) 38.0
 
Sept. 19, 2021, 8 p.m. 4.0 ppb (4) 1.3 ppb (2) N/A 3.0 ppb (3) N/A N/A 39.0 ppb (37) N/A N/A 8.1 μg/m3 (34) 37.0
 
Sept. 19, 2021, 7 p.m. 3.5 ppb (4) 1.4 ppb (2) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (38) N/A N/A 20.8 μg/m3 (70) 70.0
 
Sept. 19, 2021, 6 p.m. 3.3 ppb (4) 1.2 ppb (2) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (41) N/A N/A 9.0 μg/m3 (38) 41.0
 
Sept. 19, 2021, 5 p.m. 2.7 ppb (3) 1.1 ppb (2) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (42) N/A N/A 5.1 μg/m3 (22) 42.0
 
Sept. 19, 2021, 4 p.m. 2.8 ppb (3) 1.1 ppb (2) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (41) N/A N/A 4.8 μg/m3 (20) 41.0
 
Sept. 19, 2021, 3 p.m. 2.5 ppb (3) 1.0 ppb (1) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) N/A N/A 4.6 μg/m3 (20) 39.0
 
Sept. 19, 2021, 2 p.m. 2.4 ppb (3) 0.9 ppb (1) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) N/A N/A 4.8 μg/m3 (20) 39.0
 
Sept. 19, 2021, 1 p.m. 2.5 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (39) N/A N/A 4.6 μg/m3 (20) 39.0
 
Sept. 19, 2021, noon 2.3 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (40) N/A N/A 4.7 μg/m3 (20) 40.0
 
Sept. 19, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 4.6 μg/m3 (20) 41.0
 
Sept. 19, 2021, 10 a.m. 1.8 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (41) N/A N/A 4.7 μg/m3 (20) 41.0
 
Sept. 19, 2021, 9 a.m. 1.9 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (40) N/A N/A 4.5 μg/m3 (19) 40.0
 
Sept. 19, 2021, 8 a.m. 1.9 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (41) N/A N/A 4.3 μg/m3 (18) 41.0
 
Sept. 19, 2021, 7 a.m. 1.9 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (42) N/A N/A 4.2 μg/m3 (18) 42.0
 
Sept. 19, 2021, 6 a.m. 1.9 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (42) N/A N/A 3.7 μg/m3 (16) 42.0
 
Sept. 19, 2021, 5 a.m. 1.9 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (42) N/A N/A 3.5 μg/m3 (15) 42.0
 
Sept. 19, 2021, 4 a.m. 2.6 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (41) N/A N/A 3.4 μg/m3 (15) 41.0
 
Sept. 19, 2021, 3 a.m. 2.6 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (43) N/A N/A 3.0 μg/m3 (13) 43.0
 
Sept. 19, 2021, 2 a.m. 2.6 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (43) N/A N/A 3.2 μg/m3 (14) 43.0
 
Sept. 19, 2021, 1 a.m. 3.0 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (44) N/A N/A 3.2 μg/m3 (14) 44.0
 
Sept. 19, 2021, midnight 3.0 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A 48.0 ppb (45) N/A N/A 2.8 μg/m3 (12) 45.0
 
Sept. 18, 2021, 11 p.m. 2.9 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 48.0 ppb (45) N/A N/A 2.5 μg/m3 (11) 45.0
 
Sept. 18, 2021, 10 p.m. 2.8 ppb (3) 1.1 ppb (2) N/A 2.0 ppb (2) N/A N/A 48.0 ppb (45) N/A N/A 2.3 μg/m3 (10) 45.0
 
Sept. 18, 2021, 9 p.m. 3.3 ppb (4) 1.1 ppb (2) N/A 2.0 ppb (2) N/A N/A 48.0 ppb (45) N/A N/A 3.1 μg/m3 (13) 45.0
 
Sept. 18, 2021, 8 p.m. 3.4 ppb (4) 1.1 ppb (2) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (43) N/A N/A 3.4 μg/m3 (15) 43.0
 
Sept. 18, 2021, 7 p.m. 2.7 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (42) N/A N/A 3.5 μg/m3 (15) 42.0
 
Sept. 18, 2021, 6 p.m. 3.1 ppb (3) 1.2 ppb (2) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (44) N/A N/A 4.0 μg/m3 (17) 44.0
 
Sept. 18, 2021, 5 p.m. 5.3 ppb (5) 1.6 ppb (2) N/A 4.0 ppb (4) N/A N/A 43.0 ppb (40) N/A N/A 4.6 μg/m3 (20) 40.0
 
Sept. 18, 2021, 4 p.m. 4.3 ppb (5) 1.3 ppb (2) N/A 3.0 ppb (3) N/A N/A 43.0 ppb (40) N/A N/A 3.6 μg/m3 (16) 40.0
 
Sept. 18, 2021, 3 p.m. 1.8 ppb (2) 0.9 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
 
Sept. 18, 2021, 2 p.m. 1.6 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (42) N/A N/A 3.5 μg/m3 (15) 42.0
 
Sept. 18, 2021, 1 p.m. 1.5 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (43) N/A N/A 5.8 μg/m3 (25) 43.0
 
Sept. 18, 2021, noon -4.6 ppb (0) -5.8 ppb (0) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (45) N/A N/A 5.3 μg/m3 (23) 45.0
 
Sept. 18, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A 7.7 μg/m3 (33) 45.0
 
Sept. 18, 2021, 10 a.m. 2.0 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (43) N/A N/A 5.0 μg/m3 (21) 43.0
 
Sept. 18, 2021, 9 a.m. 2.4 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (43) N/A N/A 5.1 μg/m3 (22) 43.0
 
Sept. 18, 2021, 8 a.m. 2.4 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (43) N/A N/A 5.6 μg/m3 (24) 43.0
 
Sept. 18, 2021, 7 a.m. 8.1 ppb (8) 0.7 ppb (1) N/A 7.0 ppb (7) N/A N/A 42.0 ppb (39) N/A N/A 5.0 μg/m3 (21) 39.0
 
Sept. 18, 2021, 6 a.m. 15.0 ppb (15) 1.2 ppb (2) N/A 14.0 ppb (14) N/A N/A 38.0 ppb (36) N/A N/A 4.8 μg/m3 (20) 36.0
 
Sept. 18, 2021, 5 a.m. 4.6 ppb (5) 1.1 ppb (2) N/A 3.0 ppb (3) N/A N/A 50.0 ppb (47) N/A N/A 3.9 μg/m3 (17) 47.0
 
Sept. 18, 2021, 4 a.m. 17.9 ppb (17) 2.7 ppb (3) N/A 15.0 ppb (15) N/A N/A 41.0 ppb (38) N/A N/A 5.4 μg/m3 (23) 38.0
 
Sept. 18, 2021, 3 a.m. 9.7 ppb (10) 0.9 ppb (1) N/A 9.0 ppb (9) N/A N/A 47.0 ppb (44) N/A N/A 7.7 μg/m3 (33) 44.0
 
Sept. 18, 2021, 2 a.m. 10.4 ppb (10) 0.9 ppb (1) N/A 9.0 ppb (9) N/A N/A 50.0 ppb (47) N/A N/A 13.6 μg/m3 (55) 55.0
 
Sept. 18, 2021, 1 a.m. 12.5 ppb (12) 0.9 ppb (1) N/A 12.0 ppb (12) N/A N/A 53.0 ppb (50) N/A N/A 11.9 μg/m3 (50) 50.0
 
Sept. 18, 2021, midnight 8.0 ppb (8) 1.0 ppb (1) N/A 7.0 ppb (7) N/A N/A 65.0 ppb (84) N/A N/A 10.2 μg/m3 (43) 84.0
 
Sept. 17, 2021, 11 p.m. 7.0 ppb (7) 1.2 ppb (2) N/A 6.0 ppb (6) N/A N/A 71.0 ppb (101) N/A N/A 9.8 μg/m3 (41) 101.0
 
Sept. 17, 2021, 10 p.m. 10.0 ppb (10) 2.0 ppb (2) N/A 8.0 ppb (8) N/A N/A 68.0 ppb (94) N/A N/A 10.9 μg/m3 (46) 94.0
 
Sept. 17, 2021, 9 p.m. 14.6 ppb (14) 3.0 ppb (3) N/A 12.0 ppb (12) N/A N/A 66.0 ppb (87) N/A N/A 12.6 μg/m3 (53) 87.0
 
Sept. 17, 2021, 8 p.m. 21.5 ppb (21) 6.4 ppb (7) N/A 15.0 ppb (15) N/A N/A 63.0 ppb (78) N/A N/A 14.6 μg/m3 (57) 78.0
 
Sept. 17, 2021, 7 p.m. 18.0 ppb (17) 4.6 ppb (5) N/A 14.0 ppb (14) N/A N/A 55.0 ppb (51) N/A N/A 15.8 μg/m3 (59) 59.0
 
Sept. 17, 2021, 6 p.m. 21.8 ppb (21) 5.6 ppb (6) N/A 16.0 ppb (16) N/A N/A 48.0 ppb (45) N/A N/A 16.2 μg/m3 (60) 60.0
 
Sept. 17, 2021, 5 p.m. 25.0 ppb (24) 7.4 ppb (7) N/A 18.0 ppb (17) N/A N/A 37.0 ppb (35) N/A N/A 19.0 μg/m3 (66) 66.0
 
Sept. 17, 2021, 4 p.m. 52.9 ppb (50) 24.5 ppb (24) N/A 28.0 ppb (27) N/A N/A 17.0 ppb (16) N/A N/A 21.7 μg/m3 (72) 72.0
 
Sept. 17, 2021, 3 p.m. 105.0 ppb (102) 67.2 ppb (66) N/A 38.0 ppb (36) N/A N/A 6.0 ppb (6) N/A N/A 23.7 μg/m3 (76) 102.0
 
Sept. 17, 2021, 2 p.m. 57.3 ppb (55) 26.7 ppb (26) N/A 30.0 ppb (29) N/A N/A 8.0 ppb (8) N/A N/A 23.2 μg/m3 (75) 75.0
 
Sept. 17, 2021, 1 p.m. 21.1 ppb (20) 2.7 ppb (3) N/A 18.0 ppb (17) N/A N/A 18.0 ppb (17) N/A N/A 26.0 μg/m3 (81) 81.0
 
Sept. 17, 2021, noon 13.1 ppb (13) 1.2 ppb (2) N/A 12.0 ppb (12) N/A N/A 19.0 ppb (18) N/A N/A 17.6 μg/m3 (63) 63.0
 
Sept. 17, 2021, 11 a.m. 15.2 ppb (15) 0.9 ppb (1) N/A 14.0 ppb (14) N/A N/A N/A N/A N/A 15.6 μg/m3 (59) 59.0
 
Sept. 17, 2021, 10 a.m. 17.0 ppb (17) 1.0 ppb (1) N/A 16.0 ppb (16) N/A N/A 14.0 ppb (13) N/A N/A 16.9 μg/m3 (62) 62.0
 
Sept. 17, 2021, 9 a.m. 16.5 ppb (16) 0.9 ppb (1) N/A 16.0 ppb (16) N/A N/A 16.0 ppb (15) N/A N/A 17.3 μg/m3 (62) 62.0
 
Sept. 17, 2021, 8 a.m. 13.3 ppb (13) 1.0 ppb (1) N/A 12.0 ppb (12) N/A N/A 18.0 ppb (17) N/A N/A 17.6 μg/m3 (63) 63.0
 
Sept. 17, 2021, 7 a.m. 13.1 ppb (13) 0.9 ppb (1) N/A 12.0 ppb (12) N/A N/A 21.0 ppb (20) N/A N/A 17.7 μg/m3 (63) 63.0
 
Sept. 17, 2021, 6 a.m. 13.3 ppb (13) 0.9 ppb (1) N/A 12.0 ppb (12) N/A N/A 22.0 ppb (21) N/A N/A 18.7 μg/m3 (65) 65.0
 
Sept. 17, 2021, 5 a.m. 14.1 ppb (14) 0.9 ppb (1) N/A 13.0 ppb (13) N/A N/A 24.0 ppb (23) N/A N/A 16.2 μg/m3 (60) 60.0
 
Sept. 17, 2021, 4 a.m. 9.9 ppb (10) 0.8 ppb (1) N/A 9.0 ppb (9) N/A N/A 38.0 ppb (36) N/A N/A 12.3 μg/m3 (52) 52.0
 
Sept. 17, 2021, 3 a.m. 5.9 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 46.0 ppb (43) N/A N/A 12.0 μg/m3 (50) 50.0
 
Sept. 17, 2021, 2 a.m. 7.3 ppb (7) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A 44.0 ppb (41) N/A N/A 13.5 μg/m3 (54) 54.0
 
Sept. 17, 2021, 1 a.m. 13.2 ppb (13) 1.0 ppb (1) N/A 12.0 ppb (12) N/A N/A 42.0 ppb (39) N/A N/A 12.3 μg/m3 (52) 52.0
 
Sept. 17, 2021, midnight 7.7 ppb (8) 1.5 ppb (2) N/A 6.0 ppb (6) N/A N/A 51.0 ppb (48) N/A N/A 11.9 μg/m3 (50) 50.0
 
Sept. 16, 2021, 11 p.m. 5.0 ppb (5) 1.2 ppb (2) N/A 4.0 ppb (4) N/A N/A 57.0 ppb (58) N/A N/A 12.5 μg/m3 (52) 58.0
 
Sept. 16, 2021, 10 p.m. 3.8 ppb (4) 1.3 ppb (2) N/A 2.0 ppb (2) N/A N/A 56.0 ppb (55) N/A N/A 11.2 μg/m3 (47) 55.0
 
Sept. 16, 2021, 9 p.m. 3.8 ppb (4) 1.2 ppb (2) N/A 2.0 ppb (2) N/A N/A 59.0 ppb (65) N/A N/A 10.5 μg/m3 (44) 65.0
 
Sept. 16, 2021, 8 p.m. 5.1 ppb (5) 1.7 ppb (2) N/A 3.0 ppb (3) N/A N/A 61.0 ppb (71) N/A N/A 10.9 μg/m3 (46) 71.0
 
Sept. 16, 2021, 7 p.m. 5.1 ppb (5) 1.3 ppb (2) N/A 4.0 ppb (4) N/A N/A 61.0 ppb (71) N/A N/A 11.4 μg/m3 (48) 71.0
 
Sept. 16, 2021, 6 p.m. 13.5 ppb (13) 3.7 ppb (4) N/A 10.0 ppb (10) N/A N/A 49.0 ppb (46) N/A N/A 11.2 μg/m3 (47) 47.0
 
Sept. 16, 2021, 5 p.m. 17.1 ppb (17) 4.9 ppb (5) N/A 12.0 ppb (12) N/A N/A 42.0 ppb (39) N/A N/A 11.5 μg/m3 (48) 48.0
 
Sept. 16, 2021, 4 p.m. 24.3 ppb (23) 8.8 ppb (9) N/A 16.0 ppb (16) N/A N/A 24.0 ppb (23) N/A N/A 14.5 μg/m3 (57) 57.0
 
Sept. 16, 2021, 3 p.m. 25.4 ppb (24) 9.0 ppb (9) N/A 16.0 ppb (16) N/A N/A 27.0 ppb (25) N/A N/A 10.9 μg/m3 (46) 46.0
 
Sept. 16, 2021, 2 p.m. 19.8 ppb (19) 3.9 ppb (4) N/A 16.0 ppb (16) N/A N/A 26.0 ppb (25) N/A N/A 9.7 μg/m3 (41) 41.0
 
Sept. 16, 2021, 1 p.m. 19.0 ppb (18) 2.8 ppb (3) N/A 16.0 ppb (16) N/A N/A 24.0 ppb (23) N/A N/A 9.4 μg/m3 (40) 40.0
 
Sept. 16, 2021, noon 11.0 ppb (11) 0.9 ppb (1) N/A 10.0 ppb (10) N/A N/A 28.0 ppb (26) N/A N/A 9.0 μg/m3 (38) 38.0
 
Sept. 16, 2021, 11 a.m. 7.5 ppb (8) 0.8 ppb (1) N/A 7.0 ppb (7) N/A N/A 31.0 ppb (29) N/A N/A 8.3 μg/m3 (35) 35.0
 
Sept. 16, 2021, 10 a.m. 6.2 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 35.0 ppb (33) N/A N/A 8.8 μg/m3 (37) 37.0
 
Sept. 16, 2021, 9 a.m. 13.6 ppb (13) 0.9 ppb (1) N/A 13.0 ppb (13) N/A N/A 31.0 ppb (29) N/A N/A 12.9 μg/m3 (53) 53.0
 
Sept. 16, 2021, 8 a.m. 20.0 ppb (19) 1.0 ppb (1) N/A 19.0 ppb (18) N/A N/A 22.0 ppb (21) N/A N/A 12.9 μg/m3 (53) 53.0
 
Sept. 16, 2021, 7 a.m. 4.1 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 43.0 ppb (40) N/A N/A 9.2 μg/m3 (39) 40.0
 
Sept. 16, 2021, 6 a.m. 4.5 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 46.0 ppb (43) N/A N/A 9.7 μg/m3 (41) 43.0
 
Sept. 16, 2021, 5 a.m. 5.0 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 47.0 ppb (44) N/A N/A 10.1 μg/m3 (43) 44.0
 
Sept. 16, 2021, 4 a.m. 4.3 ppb (5) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 49.0 ppb (46) N/A N/A 10.0 μg/m3 (42) 46.0
 
Sept. 16, 2021, 3 a.m. 4.0 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 53.0 ppb (50) N/A N/A 10.6 μg/m3 (45) 50.0
 
Sept. 16, 2021, 2 a.m. 7.9 ppb (8) 1.1 ppb (2) N/A 7.0 ppb (7) N/A N/A 56.0 ppb (55) N/A N/A 13.1 μg/m3 (54) 55.0
 
Sept. 16, 2021, 1 a.m. 13.1 ppb (13) 0.9 ppb (1) N/A 12.0 ppb (12) N/A N/A 57.0 ppb (58) N/A N/A 13.4 μg/m3 (54) 58.0
 
Sept. 16, 2021, midnight 7.1 ppb (7) 1.2 ppb (2) N/A 6.0 ppb (6) N/A N/A 68.0 ppb (94) N/A N/A 10.7 μg/m3 (45) 94.0
 
Sept. 15, 2021, 11 p.m. 5.6 ppb (6) 1.2 ppb (2) N/A 4.0 ppb (4) N/A N/A 73.0 ppb (103) N/A N/A 10.3 μg/m3 (43) 103.0
 
Sept. 15, 2021, 10 p.m. 5.0 ppb (5) 1.2 ppb (2) N/A 4.0 ppb (4) N/A N/A 79.0 ppb (106) N/A N/A 11.2 μg/m3 (47) 106.0
 
Sept. 15, 2021, 9 p.m. 6.7 ppb (7) 1.4 ppb (2) N/A 5.0 ppb (5) N/A N/A 81.0 ppb (107) N/A N/A 12.2 μg/m3 (52) 107.0
 
Sept. 15, 2021, 8 p.m. 8.4 ppb (8) 1.7 ppb (2) N/A 7.0 ppb (7) N/A N/A 77.0 ppb (105) N/A N/A 12.6 μg/m3 (53) 105.0
 
Sept. 15, 2021, 7 p.m. 10.6 ppb (10) 2.0 ppb (2) N/A 9.0 ppb (9) N/A N/A 73.0 ppb (103) N/A N/A 13.4 μg/m3 (54) 103.0
 
Sept. 15, 2021, 6 p.m. 12.2 ppb (12) 2.8 ppb (3) N/A 9.0 ppb (9) N/A N/A 61.0 ppb (71) N/A N/A 12.9 μg/m3 (53) 71.0
 
Sept. 15, 2021, 5 p.m. 12.9 ppb (13) 3.1 ppb (3) N/A 10.0 ppb (10) N/A N/A 54.0 ppb (50) N/A N/A 12.9 μg/m3 (53) 53.0
 
Sept. 15, 2021, 4 p.m. 24.4 ppb (24) 6.7 ppb (7) N/A 18.0 ppb (17) N/A N/A 40.0 ppb (38) N/A N/A 15.8 μg/m3 (59) 59.0
 
Sept. 15, 2021, 3 p.m. 58.0 ppb (56) 23.6 ppb (23) N/A 34.0 ppb (33) N/A N/A 18.0 ppb (17) N/A N/A 17.9 μg/m3 (64) 64.0
 
Sept. 15, 2021, 2 p.m. 56.4 ppb (54) 22.1 ppb (21) N/A 34.0 ppb (33) N/A N/A 12.0 ppb (12) N/A N/A 17.1 μg/m3 (62) 62.0
 
Sept. 15, 2021, 1 p.m. 48.9 ppb (47) 17.1 ppb (17) N/A 32.0 ppb (31) N/A N/A 20.0 ppb (19) N/A N/A 14.7 μg/m3 (57) 57.0
 
Sept. 15, 2021, noon 10.7 ppb (11) 0.9 ppb (1) N/A 10.0 ppb (10) N/A N/A 32.0 ppb (30) N/A N/A 13.1 μg/m3 (54) 54.0
 
Sept. 15, 2021, 11 a.m. 7.4 ppb (7) 0.8 ppb (1) N/A 6.0 ppb (6) N/A N/A 38.0 ppb (36) N/A N/A 12.3 μg/m3 (52) 52.0
 
Sept. 15, 2021, 10 a.m. 5.6 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 38.0 ppb (36) N/A N/A 12.1 μg/m3 (51) 51.0
 
Sept. 15, 2021, 9 a.m. 5.4 ppb (6) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 38.0 ppb (36) N/A N/A 11.7 μg/m3 (49) 49.0
 
Sept. 15, 2021, 8 a.m. 5.1 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A N/A 44.0 ppb (41) N/A N/A 11.8 μg/m3 (50) 50.0
 
Sept. 15, 2021, 7 a.m. 4.7 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 46.0 ppb (43) N/A N/A 11.1 μg/m3 (47) 47.0
 
Sept. 15, 2021, 6 a.m. 5.7 ppb (6) 0.9 ppb (1) N/A 5.0 ppb (5) N/A N/A 42.0 ppb (39) N/A N/A 11.1 μg/m3 (47) 47.0
 
Sept. 15, 2021, 5 a.m. 3.8 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 54.0 ppb (50) N/A N/A 10.9 μg/m3 (46) 50.0
 
Sept. 15, 2021, 4 a.m. 2.6 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 54.0 ppb (50) N/A N/A 11.4 μg/m3 (48) 50.0
 
Sept. 15, 2021, 3 a.m. 3.7 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 51.0 ppb (48) N/A N/A 12.4 μg/m3 (52) 52.0
 
Sept. 15, 2021, 2 a.m. 5.5 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 48.0 ppb (45) N/A N/A 13.3 μg/m3 (54) 54.0
 
Sept. 15, 2021, 1 a.m. 10.6 ppb (10) 0.9 ppb (1) N/A 10.0 ppb (10) N/A N/A 58.0 ppb (61) N/A N/A 14.2 μg/m3 (56) 61.0
 
Sept. 15, 2021, midnight 4.7 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 60.0 ppb (68) N/A N/A 13.7 μg/m3 (55) 68.0
 
Sept. 14, 2021, 11 p.m. 4.1 ppb (4) 1.2 ppb (2) N/A 3.0 ppb (3) N/A N/A 63.0 ppb (78) N/A N/A 14.4 μg/m3 (56) 78.0
 
Sept. 14, 2021, 10 p.m. 2.8 ppb (3) 1.1 ppb (2) N/A 2.0 ppb (2) N/A N/A 63.0 ppb (78) N/A N/A 14.3 μg/m3 (56) 78.0
 
Sept. 14, 2021, 9 p.m. 3.8 ppb (4) 1.5 ppb (2) N/A 2.0 ppb (2) N/A N/A 65.0 ppb (84) N/A N/A 14.9 μg/m3 (57) 84.0
 
Sept. 14, 2021, 8 p.m. 4.2 ppb (4) 1.2 ppb (2) N/A 3.0 ppb (3) N/A N/A 68.0 ppb (94) N/A N/A 16.5 μg/m3 (61) 94.0
 
Sept. 14, 2021, 7 p.m. 5.8 ppb (6) 1.4 ppb (2) N/A 4.0 ppb (4) N/A N/A 64.0 ppb (81) N/A N/A 15.5 μg/m3 (59) 81.0
 
Sept. 14, 2021, 6 p.m. 10.0 ppb (10) 2.4 ppb (3) N/A 7.0 ppb (7) N/A N/A 53.0 ppb (50) N/A N/A 17.9 μg/m3 (64) 64.0
 
Sept. 14, 2021, 5 p.m. 19.9 ppb (19) 5.5 ppb (6) N/A 14.0 ppb (14) N/A N/A 43.0 ppb (40) N/A N/A 21.0 μg/m3 (70) 70.0
 
Sept. 14, 2021, 4 p.m. 20.4 ppb (20) 5.5 ppb (6) N/A 15.0 ppb (15) N/A N/A 42.0 ppb (39) N/A N/A 21.7 μg/m3 (72) 72.0
 
Sept. 14, 2021, 3 p.m. 33.0 ppb (32) 9.9 ppb (10) N/A 23.0 ppb (22) N/A N/A 28.0 ppb (26) N/A N/A 18.8 μg/m3 (66) 66.0
 
Sept. 14, 2021, 2 p.m. 30.6 ppb (29) 7.6 ppb (8) N/A 23.0 ppb (22) N/A N/A 19.0 ppb (18) N/A N/A 14.8 μg/m3 (57) 57.0
 
Sept. 14, 2021, 1 p.m. 33.6 ppb (32) 7.2 ppb (7) N/A 26.0 ppb (25) N/A N/A 12.0 ppb (12) N/A N/A 12.7 μg/m3 (53) 53.0
 
Sept. 14, 2021, noon 15.5 ppb (15) 1.3 ppb (2) N/A 14.0 ppb (14) N/A N/A 21.0 ppb (20) N/A N/A 11.5 μg/m3 (48) 48.0
 
Sept. 14, 2021, 11 a.m. 12.7 ppb (12) 0.9 ppb (1) N/A 12.0 ppb (12) N/A N/A 21.0 ppb (20) N/A N/A 11.5 μg/m3 (48) 48.0
 
Sept. 14, 2021, 10 a.m. 20.3 ppb (20) 0.9 ppb (1) N/A 19.0 ppb (18) N/A N/A 17.0 ppb (16) N/A N/A 13.7 μg/m3 (55) 55.0
 
Sept. 14, 2021, 9 a.m. 16.6 ppb (16) 0.9 ppb (1) N/A 16.0 ppb (16) N/A N/A 22.0 ppb (21) N/A N/A 11.9 μg/m3 (50) 50.0
 
Sept. 14, 2021, 8 a.m. 8.4 ppb (8) 0.9 ppb (1) N/A 7.0 ppb (7) N/A N/A 35.0 ppb (33) N/A N/A 8.8 μg/m3 (37) 37.0
 
Sept. 14, 2021, 7 a.m. 12.4 ppb (12) 0.8 ppb (1) N/A 12.0 ppb (12) N/A N/A 28.0 ppb (26) N/A N/A 11.2 μg/m3 (47) 47.0
 
Sept. 14, 2021, 6 a.m. 10.1 ppb (10) 0.9 ppb (1) N/A 9.0 ppb (9) N/A N/A 33.0 ppb (31) N/A N/A 10.3 μg/m3 (43) 43.0
 
Sept. 14, 2021, 5 a.m. 3.6 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 46.0 ppb (43) N/A N/A 7.8 μg/m3 (33) 43.0
 
Sept. 14, 2021, 4 a.m. 3.4 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 48.0 ppb (45) N/A N/A 7.7 μg/m3 (33) 45.0
 
Sept. 14, 2021, 3 a.m. 4.7 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A N/A 45.0 ppb (42) N/A N/A 8.7 μg/m3 (37) 42.0
 
Sept. 14, 2021, 2 a.m. 5.8 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 45.0 ppb (42) N/A N/A 8.8 μg/m3 (37) 42.0
 
Sept. 14, 2021, 1 a.m. 7.4 ppb (7) 0.9 ppb (1) N/A 6.0 ppb (6) N/A N/A 48.0 ppb (45) N/A N/A 8.2 μg/m3 (35) 45.0
 
Sept. 14, 2021, midnight 5.2 ppb (5) 1.1 ppb (2) N/A 4.0 ppb (4) N/A N/A 55.0 ppb (51) N/A N/A 7.4 μg/m3 (31) 51.0
 
Sept. 13, 2021, 11 p.m. 5.1 ppb (5) 1.2 ppb (2) N/A 4.0 ppb (4) N/A N/A 55.0 ppb (51) N/A N/A 7.5 μg/m3 (32) 51.0
 
Sept. 13, 2021, 10 p.m. 4.8 ppb (5) 1.4 ppb (2) N/A 3.0 ppb (3) N/A N/A 57.0 ppb (58) N/A N/A 6.2 μg/m3 (26) 58.0
 
Sept. 13, 2021, 9 p.m. 3.3 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A N/A 59.0 ppb (65) N/A N/A 5.2 μg/m3 (22) 65.0
 
Sept. 13, 2021, 8 p.m. 9.0 ppb (9) 2.8 ppb (3) N/A 6.0 ppb (6) N/A N/A 54.0 ppb (50) N/A N/A 5.9 μg/m3 (25) 50.0
 
Sept. 13, 2021, 7 p.m. 6.2 ppb (6) 1.6 ppb (2) N/A 5.0 ppb (5) N/A N/A 57.0 ppb (58) N/A N/A 5.2 μg/m3 (22) 58.0
 
Sept. 13, 2021, 6 p.m. 6.7 ppb (7) 2.0 ppb (2) N/A 5.0 ppb (5) N/A N/A 49.0 ppb (46) N/A N/A 5.4 μg/m3 (23) 46.0
 
Sept. 13, 2021, 5 p.m. 8.2 ppb (8) 2.3 ppb (3) N/A 6.0 ppb (6) N/A N/A 44.0 ppb (41) N/A N/A 5.8 μg/m3 (25) 41.0
 
Sept. 13, 2021, 4 p.m. 20.4 ppb (20) 6.3 ppb (6) N/A 14.0 ppb (14) N/A N/A 35.0 ppb (33) N/A N/A 7.5 μg/m3 (32) 33.0