ID: 9722

AQSQID: 113490353015

Site Name: Utah Tech. Center

Added: June 19, 2021, 5:40 a.m.

Updated: Sept. 22, 2021, noon

Location: Salt Lake City (Jordan Meadows), UT

Reporting: True, Located: True

Current AQI: 36.0

Salt Lake City (Jordan Meadows) UT, US: 40.7771, -111.945

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 15, 2021, 10 a.m. 36.7 ppb (35) 3.2 ppb (4) N/A 33.0 ppb (32) N/A 1.0 ppb (2) 13.0 ppb (13) 0.0 ppb (0) N/A 13.5 μg/m3 (54) 54.0
 
Sept. 15, 2021, 9 a.m. 26.2 ppb (25) 0.6 ppb (1) N/A 26.0 ppb (25) N/A 1.0 ppb (2) 23.0 ppb (22) 0.0 ppb (0) N/A 12.3 μg/m3 (52) 52.0
 
Sept. 15, 2021, 8 a.m. 24.6 ppb (24) 0.8 ppb (1) N/A 24.0 ppb (23) N/A 1.0 ppb (2) 25.0 ppb (24) 0.0 ppb (0) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 15, 2021, 7 a.m. 20.0 ppb (19) 0.6 ppb (1) N/A 19.0 ppb (18) N/A 1.0 ppb (2) 32.0 ppb (30) 0.0 ppb (0) N/A 13.2 μg/m3 (54) 54.0
 
Sept. 15, 2021, 6 a.m. 16.0 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 15.1 μg/m3 (58) 58.0
 
Sept. 15, 2021, 5 a.m. 18.4 ppb (18) 0.3 ppb (1) N/A 18.0 ppb (17) N/A 1.0 ppb (2) 35.0 ppb (33) 0.0 ppb (0) N/A 13.0 μg/m3 (53) 53.0
 
Sept. 15, 2021, 4 a.m. 16.7 ppb (16) 0.3 ppb (1) N/A 16.0 ppb (16) N/A 1.0 ppb (2) 35.0 ppb (33) 0.0 ppb (0) N/A 13.5 μg/m3 (54) 54.0
 
Sept. 15, 2021, 3 a.m. 22.3 ppb (22) 0.4 ppb (1) N/A 22.0 ppb (21) N/A 1.0 ppb (2) 31.0 ppb (29) 0.0 ppb (0) N/A 14.2 μg/m3 (56) 56.0
 
Sept. 15, 2021, 2 a.m. 13.2 ppb (13) 0.2 ppb (1) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 43.0 ppb (40) 0.0 ppb (0) N/A 15.2 μg/m3 (58) 58.0
 
Sept. 15, 2021, 1 a.m. 5.5 ppb (6) 0.2 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 56.0 ppb (55) 0.0 ppb (0) N/A 14.4 μg/m3 (56) 56.0
 
Sept. 15, 2021, midnight 3.0 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 62.0 ppb (74) N/A N/A 13.9 μg/m3 (55) 74.0
 
Sept. 14, 2021, 11 p.m. 3.1 ppb (3) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 63.0 ppb (78) N/A N/A 14.1 μg/m3 (56) 78.0
 
Sept. 14, 2021, 10 p.m. 3.0 ppb (3) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 65.0 ppb (84) N/A N/A 14.3 μg/m3 (56) 84.0
 
Sept. 14, 2021, 9 p.m. 3.4 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 64.0 ppb (81) N/A N/A 14.3 μg/m3 (56) 81.0
 
Sept. 14, 2021, 8 p.m. 4.6 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 64.0 ppb (81) N/A N/A 14.9 μg/m3 (57) 81.0
 
Sept. 14, 2021, 7 p.m. 5.4 ppb (6) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 63.0 ppb (78) N/A N/A 15.4 μg/m3 (58) 78.0
 
Sept. 14, 2021, 6 p.m. 7.3 ppb (7) 1.5 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 58.0 ppb (61) N/A N/A 17.9 μg/m3 (64) 64.0
 
Sept. 14, 2021, 5 p.m. 10.0 ppb (10) 2.3 ppb (3) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 52.0 ppb (49) N/A N/A 18.6 μg/m3 (65) 65.0
 
Sept. 14, 2021, 4 p.m. 15.7 ppb (15) 4.1 ppb (4) N/A 12.0 ppb (12) N/A 2.0 ppb (3) 40.0 ppb (38) 0.0 ppb (0) N/A 21.2 μg/m3 (71) 71.0
 
Sept. 14, 2021, 3 p.m. 38.4 ppb (37) 15.3 ppb (15) N/A 23.0 ppb (22) N/A 1.0 ppb (2) 24.0 ppb (23) 0.1 ppb (2) N/A 23.3 μg/m3 (75) 75.0
 
Sept. 14, 2021, 2 p.m. 84.2 ppb (84) 50.1 ppb (48) N/A 34.0 ppb (33) N/A 2.0 ppb (3) 4.0 ppb (4) 0.4 ppb (5) N/A 25.4 μg/m3 (79) 84.0
 
Sept. 14, 2021, 1 p.m. 84.1 ppb (84) 51.2 ppb (49) N/A 33.0 ppb (32) N/A 2.0 ppb (3) 1.0 ppb (1) 0.5 ppb (6) N/A 21.5 μg/m3 (71) 84.0
 
Sept. 14, 2021, noon 69.4 ppb (68) 36.4 ppb (35) N/A 33.0 ppb (32) N/A 1.0 ppb (2) 1.0 ppb (1) 0.2 ppb (3) N/A 18.8 μg/m3 (66) 68.0
 
Sept. 14, 2021, 11 a.m. 56.9 ppb (55) 24.2 ppb (23) N/A 33.0 ppb (32) N/A 1.0 ppb (2) 1.0 ppb (1) 0.1 ppb (2) N/A 18.1 μg/m3 (64) 64.0
 
Sept. 14, 2021, 10 a.m. 45.6 ppb (44) 13.0 ppb (13) N/A 32.0 ppb (31) N/A 1.0 ppb (2) 2.0 ppb (2) 0.0 ppb (0) N/A 18.8 μg/m3 (66) 66.0
 
Sept. 14, 2021, 9 a.m. 40.5 ppb (39) 8.3 ppb (8) N/A 32.0 ppb (31) N/A 1.0 ppb (2) 4.0 ppb (4) 0.0 ppb (0) N/A 23.8 μg/m3 (76) 76.0
 
Sept. 14, 2021, 8 a.m. 26.5 ppb (25) 1.2 ppb (2) N/A 25.0 ppb (24) N/A 1.0 ppb (2) 10.0 ppb (10) 0.0 ppb (0) N/A 17.7 μg/m3 (63) 63.0
 
Sept. 14, 2021, 7 a.m. 31.6 ppb (30) 1.5 ppb (2) N/A 30.0 ppb (29) N/A 1.0 ppb (2) 11.0 ppb (11) 0.0 ppb (0) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 14, 2021, 6 a.m. 40.0 ppb (38) 2.7 ppb (3) N/A 37.0 ppb (35) N/A 2.0 ppb (3) 6.0 ppb (6) 0.0 ppb (0) N/A 11.2 μg/m3 (47) 47.0
 
Sept. 14, 2021, 5 a.m. 31.2 ppb (30) 0.9 ppb (1) N/A 30.0 ppb (29) N/A 1.0 ppb (2) 12.0 ppb (12) 0.0 ppb (0) N/A 10.3 μg/m3 (43) 43.0
 
Sept. 14, 2021, 4 a.m. 25.5 ppb (25) 0.7 ppb (1) N/A 25.0 ppb (24) N/A 1.0 ppb (2) 19.0 ppb (18) 0.0 ppb (0) N/A 9.1 μg/m3 (38) 38.0
 
Sept. 14, 2021, 3 a.m. 19.7 ppb (19) 0.4 ppb (1) N/A 19.0 ppb (18) N/A 1.0 ppb (2) 32.0 ppb (30) 0.0 ppb (0) N/A 9.2 μg/m3 (39) 39.0
 
Sept. 14, 2021, 2 a.m. 17.2 ppb (17) 0.2 ppb (1) N/A 17.0 ppb (17) N/A 1.0 ppb (2) 34.0 ppb (32) 0.0 ppb (0) N/A 9.7 μg/m3 (41) 41.0
 
Sept. 14, 2021, 1 a.m. 7.2 ppb (7) 0.2 ppb (1) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 50.0 ppb (47) 0.0 ppb (0) N/A 8.5 μg/m3 (36) 47.0
 
Sept. 14, 2021, midnight 3.2 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 57.0 ppb (58) N/A N/A 8.1 μg/m3 (34) 58.0
 
Sept. 13, 2021, 11 p.m. 3.3 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 58.0 ppb (61) N/A N/A 7.1 μg/m3 (30) 61.0
 
Sept. 13, 2021, 10 p.m. 4.4 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 59.0 ppb (65) N/A N/A 6.3 μg/m3 (27) 65.0
 
Sept. 13, 2021, 9 p.m. 4.9 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 57.0 ppb (58) N/A N/A 5.4 μg/m3 (23) 58.0
 
Sept. 13, 2021, 8 p.m. 5.8 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 57.0 ppb (58) N/A N/A 5.3 μg/m3 (23) 58.0
 
Sept. 13, 2021, 7 p.m. 5.1 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 57.0 ppb (58) N/A N/A 5.6 μg/m3 (24) 58.0
 
Sept. 13, 2021, 6 p.m. 6.4 ppb (7) 1.6 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 50.0 ppb (47) 0.0 ppb (0) N/A 5.3 μg/m3 (23) 47.0
 
Sept. 13, 2021, 5 p.m. 7.0 ppb (7) 1.7 ppb (2) N/A 5.0 ppb (5) N/A 2.0 ppb (3) 44.0 ppb (41) N/A N/A 5.9 μg/m3 (25) 41.0
 
Sept. 13, 2021, 4 p.m. 14.1 ppb (14) 4.1 ppb (4) N/A 10.0 ppb (10) N/A 2.0 ppb (3) 37.0 ppb (35) N/A N/A 6.0 μg/m3 (25) 35.0
 
Sept. 13, 2021, 3 p.m. 37.1 ppb (35) 14.1 ppb (14) N/A 23.0 ppb (22) N/A 1.0 ppb (2) 20.0 ppb (19) 0.0 ppb (0) N/A 9.7 μg/m3 (41) 41.0
 
Sept. 13, 2021, 2 p.m. 51.1 ppb (49) 21.5 ppb (21) N/A 29.0 ppb (28) N/A 1.0 ppb (2) 7.0 ppb (7) 0.0 ppb (0) N/A 12.4 μg/m3 (52) 52.0
 
Sept. 13, 2021, 1 p.m. 31.7 ppb (30) 5.9 ppb (6) N/A 26.0 ppb (25) N/A 1.0 ppb (2) 9.0 ppb (9) 0.0 ppb (0) N/A 9.1 μg/m3 (38) 38.0
 
Sept. 13, 2021, noon 13.6 ppb (13) 1.0 ppb (1) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 20.0 ppb (19) N/A N/A 6.8 μg/m3 (29) 29.0
 
Sept. 13, 2021, 11 a.m. 8.0 ppb (8) 0.4 ppb (1) N/A 8.0 ppb (8) N/A N/A 26.0 ppb (25) N/A N/A 6.2 μg/m3 (26) 26.0
 
Sept. 13, 2021, 10 a.m. 14.9 ppb (15) 0.4 ppb (1) N/A 15.0 ppb (15) N/A 1.0 ppb (2) 20.0 ppb (19) N/A N/A 7.3 μg/m3 (31) 31.0
 
Sept. 13, 2021, 9 a.m. 10.8 ppb (11) 0.3 ppb (1) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 27.0 ppb (25) N/A N/A 6.9 μg/m3 (29) 29.0
 
Sept. 13, 2021, 8 a.m. 5.8 ppb (6) 0.2 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 31.0 ppb (29) N/A N/A 7.7 μg/m3 (33) 33.0
 
Sept. 13, 2021, 7 a.m. 3.4 ppb (4) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 37.0 ppb (35) N/A N/A 5.7 μg/m3 (24) 35.0
 
Sept. 13, 2021, 6 a.m. 6.6 ppb (7) 0.3 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 30.0 ppb (28) N/A N/A 6.0 μg/m3 (25) 28.0
 
Sept. 13, 2021, 5 a.m. 18.9 ppb (18) 0.4 ppb (1) N/A 19.0 ppb (18) N/A 1.0 ppb (2) 26.0 ppb (25) 0.0 ppb (0) N/A 6.5 μg/m3 (28) 28.0
 
Sept. 13, 2021, 4 a.m. 19.9 ppb (19) 0.8 ppb (1) N/A 19.0 ppb (18) N/A 1.0 ppb (2) 30.0 ppb (28) 0.0 ppb (0) N/A 6.7 μg/m3 (28) 28.0
 
Sept. 13, 2021, 3 a.m. 31.2 ppb (30) 2.0 ppb (2) N/A 29.0 ppb (28) N/A 1.0 ppb (2) 23.0 ppb (22) 0.0 ppb (0) N/A 10.3 μg/m3 (43) 43.0
 
Sept. 13, 2021, 2 a.m. 8.6 ppb (9) 0.2 ppb (1) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 46.0 ppb (43) 0.0 ppb (0) N/A 6.3 μg/m3 (27) 43.0
 
Sept. 13, 2021, 1 a.m. 5.5 ppb (6) 0.1 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 55.0 ppb (51) N/A N/A 4.9 μg/m3 (21) 51.0
 
Sept. 13, 2021, midnight 2.7 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 62.0 ppb (74) N/A N/A 4.5 μg/m3 (19) 74.0
 
Sept. 12, 2021, 11 p.m. 3.0 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 66.0 ppb (87) N/A N/A 4.8 μg/m3 (20) 87.0
 
Sept. 12, 2021, 10 p.m. 3.4 ppb (4) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 70.0 ppb (100) N/A N/A 5.2 μg/m3 (22) 100.0
 
Sept. 12, 2021, 9 p.m. 3.7 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 65.0 ppb (84) N/A N/A 4.9 μg/m3 (21) 84.0
 
Sept. 12, 2021, 8 p.m. 3.0 ppb (3) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 60.0 ppb (68) N/A N/A 5.0 μg/m3 (21) 68.0
 
Sept. 12, 2021, 7 p.m. 3.8 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 60.0 ppb (68) N/A N/A 5.3 μg/m3 (23) 68.0
 
Sept. 12, 2021, 6 p.m. 4.6 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 55.0 ppb (51) N/A N/A 5.2 μg/m3 (22) 51.0
 
Sept. 12, 2021, 5 p.m. 3.7 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 49.0 ppb (46) N/A N/A 4.9 μg/m3 (21) 46.0
 
Sept. 12, 2021, 4 p.m. 5.6 ppb (6) 1.3 ppb (2) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 43.0 ppb (40) N/A N/A 5.6 μg/m3 (24) 40.0
 
Sept. 12, 2021, 3 p.m. 8.5 ppb (9) 2.1 ppb (2) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 35.0 ppb (33) N/A N/A 7.2 μg/m3 (31) 33.0
 
Sept. 12, 2021, 2 p.m. 19.4 ppb (19) 5.1 ppb (5) N/A 14.0 ppb (14) N/A 1.0 ppb (2) 21.0 ppb (20) 0.0 ppb (0) N/A 8.7 μg/m3 (37) 37.0
 
Sept. 12, 2021, 1 p.m. 28.0 ppb (27) 5.1 ppb (5) N/A 23.0 ppb (22) N/A 1.0 ppb (2) 8.0 ppb (8) 0.0 ppb (0) N/A 8.3 μg/m3 (35) 35.0
 
Sept. 12, 2021, noon 17.6 ppb (17) 0.7 ppb (1) N/A 17.0 ppb (17) N/A 1.0 ppb (2) 14.0 ppb (13) 0.0 ppb (0) N/A 7.2 μg/m3 (31) 31.0
 
Sept. 12, 2021, 11 a.m. 22.9 ppb (22) 1.3 ppb (2) N/A 21.0 ppb (20) N/A 1.0 ppb (2) 9.0 ppb (9) N/A N/A 8.5 μg/m3 (36) 36.0
 
Sept. 12, 2021, 10 a.m. 20.4 ppb (20) 0.9 ppb (1) N/A 20.0 ppb (19) N/A 1.0 ppb (2) 13.0 ppb (13) 0.0 ppb (0) N/A 8.1 μg/m3 (34) 34.0
 
Sept. 12, 2021, 9 a.m. 24.6 ppb (24) 1.5 ppb (2) N/A 23.0 ppb (22) N/A 1.0 ppb (2) 13.0 ppb (13) 0.0 ppb (0) N/A 13.6 μg/m3 (55) 55.0
 
Sept. 12, 2021, 8 a.m. 22.8 ppb (22) 0.7 ppb (1) N/A 22.0 ppb (21) N/A 1.0 ppb (2) 16.0 ppb (15) 0.0 ppb (0) N/A 13.4 μg/m3 (54) 54.0
 
Sept. 12, 2021, 7 a.m. 19.5 ppb (19) 0.5 ppb (1) N/A 19.0 ppb (18) N/A 1.0 ppb (2) 15.0 ppb (14) 0.0 ppb (0) N/A 9.8 μg/m3 (41) 41.0
 
Sept. 12, 2021, 6 a.m. 17.8 ppb (17) 0.7 ppb (1) N/A 17.0 ppb (17) N/A 1.0 ppb (2) 18.0 ppb (17) 0.0 ppb (0) N/A 8.3 μg/m3 (35) 35.0
 
Sept. 12, 2021, 5 a.m. 18.8 ppb (18) 1.1 ppb (2) N/A 18.0 ppb (17) N/A 1.0 ppb (2) 23.0 ppb (22) 0.0 ppb (0) N/A 6.8 μg/m3 (29) 29.0
 
Sept. 12, 2021, 4 a.m. 32.3 ppb (31) 3.3 ppb (4) N/A 29.0 ppb (28) N/A 1.0 ppb (2) 10.0 ppb (10) 0.1 ppb (2) N/A 9.3 μg/m3 (39) 39.0
 
Sept. 12, 2021, 3 a.m. 20.4 ppb (20) 0.5 ppb (1) N/A 20.0 ppb (19) N/A 1.0 ppb (2) 21.0 ppb (20) 0.0 ppb (0) N/A 6.5 μg/m3 (28) 28.0
 
Sept. 12, 2021, 2 a.m. 12.9 ppb (13) 0.4 ppb (1) N/A 12.0 ppb (12) N/A 1.0 ppb (2) 36.0 ppb (34) 0.0 ppb (0) N/A 5.4 μg/m3 (23) 34.0
 
Sept. 12, 2021, 1 a.m. 8.2 ppb (8) 0.3 ppb (1) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 47.0 ppb (44) N/A N/A 5.0 μg/m3 (21) 44.0
 
Sept. 12, 2021, midnight 5.2 ppb (5) 0.4 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 55.0 ppb (51) N/A N/A 5.1 μg/m3 (22) 51.0
 
Sept. 11, 2021, 11 p.m. 4.4 ppb (5) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 58.0 ppb (61) N/A N/A 4.7 μg/m3 (20) 61.0
 
Sept. 11, 2021, 10 p.m. 3.5 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 57.0 ppb (58) N/A N/A 3.8 μg/m3 (16) 58.0
 
Sept. 11, 2021, 9 p.m. 3.8 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 54.0 ppb (50) N/A N/A 3.2 μg/m3 (14) 50.0
 
Sept. 11, 2021, 8 p.m. 12.0 ppb (12) 2.6 ppb (3) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 34.0 ppb (32) 0.0 ppb (0) N/A 12.6 μg/m3 (53) 53.0
 
Sept. 11, 2021, 7 p.m. 11.3 ppb (11) 1.3 ppb (2) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 30.0 ppb (28) 0.0 ppb (0) N/A 14.9 μg/m3 (57) 57.0
 
Sept. 11, 2021, 6 p.m. 13.2 ppb (13) 2.5 ppb (3) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 28.0 ppb (26) 0.0 ppb (0) N/A 14.9 μg/m3 (57) 57.0
 
Sept. 11, 2021, 5 p.m. 13.7 ppb (13) 2.5 ppb (3) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 24.0 ppb (23) 0.0 ppb (0) N/A 16.5 μg/m3 (61) 61.0
 
Sept. 11, 2021, 4 p.m. 8.7 ppb (9) 0.8 ppb (1) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 25.0 ppb (24) N/A N/A 16.9 μg/m3 (62) 62.0
 
Sept. 11, 2021, 3 p.m. 19.3 ppb (19) 5.1 ppb (5) N/A 14.0 ppb (14) N/A 1.0 ppb (2) 20.0 ppb (19) 0.0 ppb (0) N/A 21.4 μg/m3 (71) 71.0
 
Sept. 11, 2021, 2 p.m. 12.0 ppb (12) 2.7 ppb (3) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 20.0 ppb (19) 0.0 ppb (0) N/A 19.7 μg/m3 (67) 67.0
 
Sept. 11, 2021, 1 p.m. 23.8 ppb (23) 3.2 ppb (4) N/A 20.0 ppb (19) N/A 1.0 ppb (2) 11.0 ppb (11) 0.0 ppb (0) N/A 19.9 μg/m3 (68) 68.0
 
Sept. 11, 2021, noon 18.6 ppb (18) 1.2 ppb (2) N/A 17.0 ppb (17) N/A 1.0 ppb (2) N/A 0.0 ppb (0) N/A 21.4 μg/m3 (71) 71.0
 
Sept. 11, 2021, 11 a.m. 12.6 ppb (12) 0.7 ppb (1) N/A 12.0 ppb (12) N/A 1.0 ppb (2) N/A 0.0 ppb (0) N/A 19.0 μg/m3 (66) 66.0
 
Sept. 11, 2021, 10 a.m. 12.3 ppb (12) 0.4 ppb (1) N/A 12.0 ppb (12) N/A 1.0 ppb (2) 15.0 ppb (14) N/A N/A 17.9 μg/m3 (64) 64.0
 
Sept. 11, 2021, 9 a.m. 9.2 ppb (9) 0.3 ppb (1) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 19.0 ppb (18) N/A N/A 17.0 μg/m3 (62) 62.0
 
Sept. 11, 2021, 8 a.m. 3.8 ppb (4) 0.3 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 27.0 ppb (25) N/A N/A 14.7 μg/m3 (57) 57.0
 
Sept. 11, 2021, 7 a.m. 5.4 ppb (6) 0.2 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 27.0 ppb (25) N/A N/A 16.1 μg/m3 (60) 60.0
 
Sept. 11, 2021, 6 a.m. 6.5 ppb (7) 0.3 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 25.0 ppb (24) 0.0 ppb (0) N/A 18.4 μg/m3 (65) 65.0
 
Sept. 11, 2021, 5 a.m. 8.9 ppb (9) 0.3 ppb (1) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 33.0 ppb (31) 0.0 ppb (0) N/A 12.5 μg/m3 (52) 52.0
 
Sept. 11, 2021, 4 a.m. 17.2 ppb (17) 0.5 ppb (1) N/A 17.0 ppb (17) N/A 1.0 ppb (2) 30.0 ppb (28) 0.0 ppb (0) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 11, 2021, 3 a.m. 14.1 ppb (14) 0.4 ppb (1) N/A 14.0 ppb (14) N/A 2.0 ppb (3) 29.0 ppb (27) 0.0 ppb (0) N/A 11.8 μg/m3 (50) 50.0
 
Sept. 11, 2021, 2 a.m. 8.8 ppb (9) 0.3 ppb (1) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 40.0 ppb (38) N/A N/A 9.9 μg/m3 (42) 42.0
 
Sept. 11, 2021, 1 a.m. 6.1 ppb (6) 0.3 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 48.0 ppb (45) N/A N/A 10.6 μg/m3 (45) 45.0
 
Sept. 11, 2021, midnight 6.2 ppb (6) 0.3 ppb (1) N/A 6.0 ppb (6) N/A 1.0 ppb (2) 54.0 ppb (50) 0.0 ppb (0) N/A 9.1 μg/m3 (38) 50.0
 
Sept. 10, 2021, 11 p.m. 5.6 ppb (6) 0.6 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 58.0 ppb (61) N/A N/A 8.9 μg/m3 (38) 61.0
 
Sept. 10, 2021, 10 p.m. 5.4 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 57.0 ppb (58) N/A N/A 7.6 μg/m3 (32) 58.0
 
Sept. 10, 2021, 9 p.m. 5.7 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 53.0 ppb (50) N/A N/A 7.6 μg/m3 (32) 50.0
 
Sept. 10, 2021, 8 p.m. 5.5 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 52.0 ppb (49) N/A N/A 8.9 μg/m3 (38) 49.0
 
Sept. 10, 2021, 7 p.m. 5.8 ppb (6) 1.1 ppb (2) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 53.0 ppb (50) N/A N/A 9.2 μg/m3 (39) 50.0
 
Sept. 10, 2021, 6 p.m. 10.1 ppb (10) 1.2 ppb (2) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 45.0 ppb (42) 0.0 ppb (0) N/A 12.2 μg/m3 (52) 52.0
 
Sept. 10, 2021, 5 p.m. 20.3 ppb (20) 4.8 ppb (5) N/A 15.0 ppb (15) N/A 1.0 ppb (2) 40.0 ppb (38) 0.0 ppb (0) N/A 14.1 μg/m3 (56) 56.0
 
Sept. 10, 2021, 4 p.m. 33.9 ppb (32) 11.8 ppb (12) N/A 22.0 ppb (21) N/A 1.0 ppb (2) 29.0 ppb (27) 0.1 ppb (2) N/A 16.3 μg/m3 (60) 60.0
 
Sept. 10, 2021, 3 p.m. 44.5 ppb (42) 16.2 ppb (16) N/A 28.0 ppb (27) N/A 1.0 ppb (2) 19.0 ppb (18) 0.2 ppb (3) N/A 17.7 μg/m3 (63) 63.0
 
Sept. 10, 2021, 2 p.m. 46.8 ppb (45) 14.9 ppb (15) N/A 32.0 ppb (31) N/A 1.0 ppb (2) 14.0 ppb (13) 0.1 ppb (2) N/A 14.3 μg/m3 (56) 56.0
 
Sept. 10, 2021, 1 p.m. 71.5 ppb (70) 31.0 ppb (30) N/A 40.0 ppb (38) N/A 2.0 ppb (3) 4.0 ppb (4) 0.2 ppb (3) N/A 16.7 μg/m3 (61) 70.0
 
Sept. 10, 2021, noon 25.8 ppb (25) 0.9 ppb (1) N/A 25.0 ppb (24) N/A 1.0 ppb (2) 17.0 ppb (16) 0.0 ppb (0) N/A 14.1 μg/m3 (56) 56.0
 
Sept. 10, 2021, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 22.0 ppb (21) 0.0 ppb (0) N/A 15.5 μg/m3 (59) 59.0
 
Sept. 10, 2021, 10 a.m. 14.6 ppb (14) 0.7 ppb (1) N/A 14.0 ppb (14) N/A 1.0 ppb (2) 28.0 ppb (26) 0.0 ppb (0) N/A 15.3 μg/m3 (58) 58.0
 
Sept. 10, 2021, 9 a.m. 27.7 ppb (27) 1.5 ppb (2) N/A 26.0 ppb (25) N/A 1.0 ppb (2) 21.0 ppb (20) 0.0 ppb (0) N/A 15.9 μg/m3 (59) 59.0
 
Sept. 10, 2021, 8 a.m. 25.7 ppb (25) 0.6 ppb (1) N/A 25.0 ppb (24) N/A 1.0 ppb (2) 19.0 ppb (18) 0.0 ppb (0) N/A 16.5 μg/m3 (61) 61.0
 
Sept. 10, 2021, 7 a.m. 24.6 ppb (24) 0.2 ppb (1) N/A 24.0 ppb (23) N/A 2.0 ppb (3) 21.0 ppb (20) 0.1 ppb (2) N/A 18.7 μg/m3 (65) 65.0
 
Sept. 10, 2021, 6 a.m. 29.8 ppb (29) 0.9 ppb (1) N/A 29.0 ppb (28) N/A 2.0 ppb (3) 21.0 ppb (20) 0.1 ppb (2) N/A 18.0 μg/m3 (64) 64.0
 
Sept. 10, 2021, 5 a.m. 32.6 ppb (31) 1.2 ppb (2) N/A 31.0 ppb (30) N/A 1.0 ppb (2) 24.0 ppb (23) 0.1 ppb (2) N/A 17.0 μg/m3 (62) 62.0
 
Sept. 10, 2021, 4 a.m. 39.3 ppb (38) 1.8 ppb (2) N/A 37.0 ppb (35) N/A 1.0 ppb (2) 21.0 ppb (20) 0.1 ppb (2) N/A 17.0 μg/m3 (62) 62.0
 
Sept. 10, 2021, 3 a.m. 32.3 ppb (31) 0.6 ppb (1) N/A 32.0 ppb (31) N/A 2.0 ppb (3) 29.0 ppb (27) 0.1 ppb (2) N/A 17.8 μg/m3 (63) 63.0
 
Sept. 10, 2021, 2 a.m. 38.2 ppb (37) 0.6 ppb (1) N/A 37.0 ppb (35) N/A 2.0 ppb (3) 32.0 ppb (30) 0.2 ppb (3) N/A 22.0 μg/m3 (72) 72.0
 
Sept. 10, 2021, 1 a.m. 22.1 ppb (21) 0.3 ppb (1) N/A 22.0 ppb (21) N/A 2.0 ppb (3) 65.0 ppb (84) 0.1 ppb (2) N/A 21.3 μg/m3 (71) 84.0
 
Sept. 10, 2021, midnight 10.0 ppb (10) 0.4 ppb (1) N/A 10.0 ppb (10) N/A 2.0 ppb (3) 84.0 ppb (108) 0.0 ppb (0) N/A 20.1 μg/m3 (68) 108.0
 
Sept. 9, 2021, 11 p.m. 11.2 ppb (11) 0.9 ppb (1) N/A 10.0 ppb (10) N/A 2.0 ppb (3) 85.0 ppb (109) 0.0 ppb (0) N/A 20.5 μg/m3 (69) 109.0
 
Sept. 9, 2021, 10 p.m. 8.4 ppb (8) 0.9 ppb (1) N/A 7.0 ppb (7) N/A 2.0 ppb (3) 73.0 ppb (103) 0.0 ppb (0) N/A 18.6 μg/m3 (65) 103.0
 
Sept. 9, 2021, 9 p.m. 8.6 ppb (9) 1.2 ppb (2) N/A 7.0 ppb (7) N/A 2.0 ppb (3) 70.0 ppb (100) 0.0 ppb (0) N/A 18.7 μg/m3 (65) 100.0
 
Sept. 9, 2021, 8 p.m. 10.3 ppb (10) 1.4 ppb (2) N/A 9.0 ppb (9) N/A 2.0 ppb (3) 71.0 ppb (101) 0.0 ppb (0) N/A N/A 101.0
 
Sept. 9, 2021, 7 p.m. 14.2 ppb (14) 2.3 ppb (3) N/A 12.0 ppb (12) N/A 2.0 ppb (3) 67.0 ppb (91) 0.0 ppb (0) N/A 22.5 μg/m3 (73) 91.0
 
Sept. 9, 2021, 6 p.m. 26.4 ppb (25) 5.7 ppb (6) N/A 21.0 ppb (20) N/A 2.0 ppb (3) 54.0 ppb (50) 0.1 ppb (2) N/A 23.1 μg/m3 (75) 75.0
 
Sept. 9, 2021, 5 p.m. 27.7 ppb (27) 7.2 ppb (7) N/A 20.0 ppb (19) N/A 2.0 ppb (3) 41.0 ppb (38) 0.1 ppb (2) N/A 22.4 μg/m3 (73) 73.0
 
Sept. 9, 2021, 4 p.m. 29.8 ppb (29) 8.8 ppb (9) N/A 21.0 ppb (20) N/A 2.0 ppb (3) 35.0 ppb (33) 0.1 ppb (2) N/A 21.6 μg/m3 (71) 71.0
 
Sept. 9, 2021, 3 p.m. 45.5 ppb (43) 15.2 ppb (15) N/A 30.0 ppb (29) N/A 2.0 ppb (3) 20.0 ppb (19) 0.2 ppb (3) N/A 23.8 μg/m3 (76) 76.0
 
Sept. 9, 2021, 2 p.m. 50.8 ppb (48) 13.8 ppb (14) N/A 37.0 ppb (35) N/A 2.0 ppb (3) 12.0 ppb (12) 0.3 ppb (4) N/A 23.6 μg/m3 (76) 76.0
 
Sept. 9, 2021, 1 p.m. 37.8 ppb (36) 3.8 ppb (4) N/A 34.0 ppb (33) N/A 1.0 ppb (2) 13.0 ppb (13) 0.1 ppb (2) N/A 22.0 μg/m3 (72) 72.0
 
Sept. 9, 2021, noon 38.0 ppb (36) 2.4 ppb (3) N/A 35.0 ppb (34) N/A 1.0 ppb (2) 11.0 ppb (11) 0.1 ppb (2) N/A 22.4 μg/m3 (73) 73.0
 
Sept. 9, 2021, 11 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 27.0 ppb (25) 0.0 ppb (0) N/A 21.5 μg/m3 (71) 71.0
 
Sept. 9, 2021, 10 a.m. 18.8 ppb (18) 0.2 ppb (1) N/A 19.0 ppb (18) N/A 1.0 ppb (2) 31.0 ppb (29) 0.0 ppb (0) N/A 23.0 μg/m3 (74) 74.0
 
Sept. 9, 2021, 9 a.m. 28.4 ppb (27) 0.4 ppb (1) N/A 28.0 ppb (27) N/A 1.0 ppb (2) 21.0 ppb (20) 0.1 ppb (2) N/A 25.6 μg/m3 (80) 80.0
 
Sept. 9, 2021, 8 a.m. 34.1 ppb (33) 0.6 ppb (1) N/A 33.0 ppb (32) N/A 1.0 ppb (2) 26.0 ppb (25) 0.1 ppb (2) N/A 23.0 μg/m3 (74) 74.0
 
Sept. 9, 2021, 7 a.m. 36.1 ppb (35) 0.3 ppb (1) N/A 36.0 ppb (34) N/A 2.0 ppb (3) 28.0 ppb (26) 0.1 ppb (2) N/A 24.6 μg/m3 (78) 78.0
 
Sept. 9, 2021, 6 a.m. 31.9 ppb (31) 0.5 ppb (1) N/A 31.0 ppb (30) N/A 2.0 ppb (3) 37.0 ppb (35) 0.1 ppb (2) N/A 22.8 μg/m3 (74) 74.0
 
Sept. 9, 2021, 5 a.m. 27.7 ppb (27) 0.2 ppb (1) N/A 27.0 ppb (26) N/A 2.0 ppb (3) 48.0 ppb (45) 0.0 ppb (0) N/A 21.2 μg/m3 (71) 71.0
 
Sept. 9, 2021, 4 a.m. 33.0 ppb (32) 0.3 ppb (1) N/A 33.0 ppb (32) N/A 2.0 ppb (3) 41.0 ppb (38) 0.1 ppb (2) N/A 21.1 μg/m3 (70) 70.0
 
Sept. 9, 2021, 3 a.m. 54.8 ppb (52) 2.1 ppb (2) N/A 53.0 ppb (50) N/A 2.0 ppb (3) 15.0 ppb (14) 0.2 ppb (3) N/A 22.7 μg/m3 (74) 74.0
 
Sept. 9, 2021, 2 a.m. 31.8 ppb (30) 0.3 ppb (1) N/A 31.0 ppb (30) N/A 2.0 ppb (3) 35.0 ppb (33) 0.1 ppb (2) N/A 24.2 μg/m3 (77) 77.0
 
Sept. 9, 2021, 1 a.m. 18.4 ppb (18) 0.4 ppb (1) N/A 18.0 ppb (17) N/A 2.0 ppb (3) 59.0 ppb (65) 0.0 ppb (0) N/A 21.2 μg/m3 (71) 71.0
 
Sept. 9, 2021, midnight 8.8 ppb (9) 0.5 ppb (1) N/A 8.0 ppb (8) N/A 2.0 ppb (3) 79.0 ppb (106) 0.0 ppb (0) N/A 20.3 μg/m3 (69) 106.0
 
Sept. 8, 2021, 11 p.m. 7.0 ppb (7) 0.5 ppb (1) N/A 7.0 ppb (7) N/A 2.0 ppb (3) 86.0 ppb (109) 0.0 ppb (0) N/A 20.3 μg/m3 (69) 109.0
 
Sept. 8, 2021, 10 p.m. 6.4 ppb (7) 0.5 ppb (1) N/A 6.0 ppb (6) N/A 2.0 ppb (3) 78.0 ppb (105) 0.0 ppb (0) N/A 19.6 μg/m3 (67) 105.0
 
Sept. 8, 2021, 9 p.m. 5.2 ppb (5) 0.5 ppb (1) N/A 5.0 ppb (5) N/A 2.0 ppb (3) 84.0 ppb (108) 0.0 ppb (0) N/A 20.2 μg/m3 (69) 108.0
 
Sept. 8, 2021, 8 p.m. 6.8 ppb (7) 0.6 ppb (1) N/A 6.0 ppb (6) N/A 2.0 ppb (3) 87.0 ppb (110) 0.0 ppb (0) N/A 21.6 μg/m3 (71) 110.0
 
Sept. 8, 2021, 7 p.m. 12.3 ppb (12) 1.0 ppb (1) N/A 11.0 ppb (11) N/A 3.0 ppb (5) 93.0 ppb (113) 0.0 ppb (0) N/A 23.8 μg/m3 (76) 113.0
 
Sept. 8, 2021, 6 p.m. 15.5 ppb (15) 1.9 ppb (2) N/A 14.0 ppb (14) N/A 3.0 ppb (5) 81.0 ppb (107) 0.0 ppb (0) N/A 23.7 μg/m3 (76) 107.0
 
Sept. 8, 2021, 5 p.m. 24.5 ppb (24) 4.6 ppb (5) N/A 20.0 ppb (19) N/A 3.0 ppb (5) 60.0 ppb (68) 0.1 ppb (2) N/A 24.5 μg/m3 (78) 78.0
 
Sept. 8, 2021, 4 p.m. 33.3 ppb (32) 9.6 ppb (10) N/A 24.0 ppb (23) N/A 2.0 ppb (3) 39.0 ppb (37) 0.2 ppb (3) N/A 25.9 μg/m3 (81) 81.0
 
Sept. 8, 2021, 3 p.m. 35.6 ppb (34) 10.5 ppb (10) N/A 25.0 ppb (24) N/A 2.0 ppb (3) 30.0 ppb (28) 0.1 ppb (2) N/A 27.6 μg/m3 (84) 84.0
 
Sept. 8, 2021, 2 p.m. 51.0 ppb (49) 16.2 ppb (16) N/A 35.0 ppb (34) N/A 2.0 ppb (3) 14.0 ppb (13) 0.3 ppb (4) N/A 28.8 μg/m3 (87) 87.0
 
Sept. 8, 2021, 1 p.m. 73.9 ppb (73) 28.8 ppb (28) N/A 45.0 ppb (43) N/A 2.0 ppb (3) 3.0 ppb (3) 0.3 ppb (4) N/A 28.6 μg/m3 (86) 86.0
 
Sept. 8, 2021, noon 43.9 ppb (42) 4.9 ppb (5) N/A 39.0 ppb (37) N/A 1.0 ppb (2) 6.0 ppb (6) 0.2 ppb (3) N/A 27.1 μg/m3 (83) 83.0
 
Sept. 8, 2021, 11 a.m. 39.4 ppb (38) 4.6 ppb (5) N/A 35.0 ppb (34) N/A 1.0 ppb (2) 10.0 ppb (10) 0.1 ppb (2) N/A 27.3 μg/m3 (83) 83.0