ID: 861

AQSQID: 490353006

Site Name: Hawthorne

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

Updated: Feb. 25, 2021, 1:32 a.m.

Location: Salt Lake City (Liberty Wells), UT

Reporting: True, Located: True

Current AQI: 42.0

Salt Lake City (Liberty Wells) UT, US: 40.733501, -111.871696

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Feb. 18, 2021, midnight 12.2 ppb (12) 1.3 ppb (2) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 34.0 ppb (32) 0.2 ppb (3) N/A 2.9 μg/m3 (13) 32.0
 
Feb. 17, 2021, 11 p.m. 5.9 ppb (6) 1.2 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 41.0 ppb (38) 0.1 ppb (2) N/A 1.2 μg/m3 (5) 38.0
 
Feb. 17, 2021, 10 p.m. 4.3 ppb (5) 1.1 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 42.0 ppb (39) 0.1 ppb (2) N/A 0.6 μg/m3 (3) 39.0
 
Feb. 17, 2021, 9 p.m. 5.3 ppb (5) 1.3 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 41.0 ppb (38) 0.1 ppb (2) N/A 0.9 μg/m3 (4) 38.0
 
Feb. 17, 2021, 8 p.m. 4.9 ppb (5) 1.7 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 41.0 ppb (38) 0.1 ppb (2) N/A 0.8 μg/m3 (4) 38.0
 
Feb. 17, 2021, 7 p.m. 9.7 ppb (10) 2.9 ppb (3) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 38.0 ppb (36) 0.1 ppb (2) N/A 0.9 μg/m3 (4) 36.0
 
Feb. 17, 2021, 6 p.m. 6.6 ppb (7) 1.9 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 39.0 ppb (37) 0.1 ppb (2) N/A 0.7 μg/m3 (3) 37.0
 
Feb. 17, 2021, 5 p.m. 11.5 ppb (11) 3.3 ppb (4) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 35.0 ppb (33) 0.1 ppb (2) N/A 1.3 μg/m3 (6) 33.0
 
Feb. 17, 2021, 4 p.m. 16.9 ppb (16) 4.4 ppb (5) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 31.0 ppb (29) 0.2 ppb (3) N/A 1.7 μg/m3 (8) 29.0
 
Feb. 17, 2021, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (30) 0.2 ppb (3) N/A 0.9 μg/m3 (4) 30.0
 
Feb. 17, 2021, 2 p.m. 11.2 ppb (11) 0.8 ppb (1) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 33.0 ppb (31) 0.1 ppb (2) N/A 0.2 μg/m3 (1) 31.0
 
Feb. 17, 2021, 1 p.m. 11.5 ppb (11) N/A N/A 11.0 ppb (11) N/A 0.0 ppb (0) 31.0 ppb (29) 0.1 ppb (2) N/A 0.1 μg/m3 (1) 29.0
 
Feb. 17, 2021, noon 5.4 ppb (6) -0.1 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 37.0 ppb (35) 0.1 ppb (2) N/A 0.0 μg/m3 (0) 35.0
 
Feb. 17, 2021, 11 a.m. 6.4 ppb (7) -0.2 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.1 ppb (2) N/A 0.0 μg/m3 (0) 7.0
 
Feb. 17, 2021, 10 a.m. 6.7 ppb (7) -0.3 ppb (0) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 36.0 ppb (34) 0.1 ppb (2) N/A 0.2 μg/m3 (1) 34.0
 
Feb. 17, 2021, 9 a.m. 9.5 ppb (9) -0.3 ppb (0) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 27.0 ppb (25) 0.1 ppb (2) N/A 0.9 μg/m3 (4) 25.0
 
Feb. 17, 2021, 8 a.m. 6.9 ppb (7) -0.2 ppb (0) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 35.0 ppb (33) 0.1 ppb (2) N/A 0.4 μg/m3 (2) 33.0
 
Feb. 17, 2021, 7 a.m. 5.3 ppb (5) -0.1 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 38.0 ppb (36) 0.1 ppb (2) N/A 0.0 μg/m3 (0) 36.0
 
Feb. 17, 2021, 6 a.m. 4.7 ppb (5) -0.1 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 39.0 ppb (37) 0.1 ppb (2) N/A 0.0 μg/m3 (0) 37.0
 
Feb. 17, 2021, 5 a.m. 8.4 ppb (8) -0.1 ppb (0) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 35.0 ppb (33) 0.1 ppb (2) N/A 1.2 μg/m3 (5) 33.0
 
Feb. 17, 2021, 4 a.m. 13.0 ppb (13) 0.0 ppb (0) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 28.0 ppb (26) 0.1 ppb (2) N/A 1.7 μg/m3 (8) 26.0
 
Feb. 17, 2021, 3 a.m. 10.2 ppb (10) -0.1 ppb (0) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 31.0 ppb (29) 0.1 ppb (2) N/A 1.1 μg/m3 (5) 29.0
 
Feb. 17, 2021, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (26) 0.2 ppb (3) N/A 1.4 μg/m3 (6) 26.0
 
Feb. 17, 2021, 1 a.m. 10.3 ppb (10) 0.0 ppb (0) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 31.0 ppb (29) 0.1 ppb (2) N/A 1.2 μg/m3 (5) 29.0
 
Feb. 17, 2021, midnight 7.0 ppb (7) 0.5 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 36.0 ppb (34) 0.1 ppb (2) N/A 0.5 μg/m3 (3) 34.0
 
Feb. 16, 2021, 11 p.m. 10.5 ppb (10) 1.2 ppb (2) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 32.0 ppb (30) 0.1 ppb (2) N/A 1.2 μg/m3 (5) 30.0
 
Feb. 16, 2021, 10 p.m. 3.9 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 39.0 ppb (37) 0.1 ppb (2) N/A 1.1 μg/m3 (5) 37.0
 
Feb. 16, 2021, 9 p.m. 5.2 ppb (5) 1.6 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 39.0 ppb (37) 0.1 ppb (2) N/A 0.6 μg/m3 (3) 37.0
 
Feb. 16, 2021, 8 p.m. 7.0 ppb (7) 2.3 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 37.0 ppb (35) 0.1 ppb (2) N/A 2.0 μg/m3 (9) 35.0
 
Feb. 16, 2021, 7 p.m. 12.7 ppb (12) 4.3 ppb (5) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 34.0 ppb (32) 0.1 ppb (2) N/A 1.2 μg/m3 (5) 32.0
 
Feb. 16, 2021, 6 p.m. 10.9 ppb (11) 2.5 ppb (3) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 34.0 ppb (32) 0.1 ppb (2) N/A 1.2 μg/m3 (5) 32.0
 
Feb. 16, 2021, 5 p.m. 17.4 ppb (17) 4.1 ppb (4) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 30.0 ppb (28) 0.1 ppb (2) N/A 1.4 μg/m3 (6) 28.0
 
Feb. 16, 2021, 4 p.m. 22.4 ppb (22) 4.5 ppb (5) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 26.0 ppb (25) 0.2 ppb (3) N/A 1.9 μg/m3 (8) 25.0
 
Feb. 16, 2021, 3 p.m. 25.6 ppb (25) 4.4 ppb (5) N/A 21.0 ppb (20) N/A 0.0 ppb (0) 22.0 ppb (21) 0.3 ppb (4) N/A 1.8 μg/m3 (8) 25.0
 
Feb. 16, 2021, 2 p.m. 16.6 ppb (16) N/A N/A 15.0 ppb (15) N/A 0.0 ppb (0) 27.0 ppb (25) 0.1 ppb (2) N/A 0.7 μg/m3 (3) 25.0
 
Feb. 16, 2021, 1 p.m. 15.2 ppb (15) N/A N/A 15.0 ppb (15) N/A 0.0 ppb (0) 27.0 ppb (25) 0.1 ppb (2) N/A 0.9 μg/m3 (4) 25.0
 
Feb. 16, 2021, noon 13.2 ppb (13) 0.4 ppb (1) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 28.0 ppb (26) 0.1 ppb (2) N/A 0.6 μg/m3 (3) 26.0
 
Feb. 16, 2021, 11 a.m. 13.1 ppb (13) 0.0 ppb (0) N/A 13.0 ppb (13) N/A N/A 27.0 ppb (25) 0.1 ppb (2) N/A 0.2 μg/m3 (1) 25.0
 
Feb. 16, 2021, 10 a.m. 9.1 ppb (9) 0.0 ppb (0) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 33.0 ppb (31) 0.0 ppb (0) N/A 0.0 μg/m3 (0) 31.0
 
Feb. 16, 2021, 9 a.m. 8.9 ppb (9) -0.2 ppb (0) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 27.0 ppb (25) 0.1 ppb (2) N/A 0.0 μg/m3 (0) 25.0
 
Feb. 16, 2021, 8 a.m. 8.4 ppb (8) -0.2 ppb (0) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 34.0 ppb (32) 0.1 ppb (2) N/A -0.1 μg/m3 (0) 32.0
 
Feb. 16, 2021, 7 a.m. 6.6 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 36.0 ppb (34) 0.0 ppb (0) N/A N/A 34.0
 
Feb. 16, 2021, 6 a.m. 13.8 ppb (14) 0.4 ppb (1) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 28.0 ppb (26) 0.1 ppb (2) N/A 2.1 μg/m3 (9) 26.0
 
Feb. 16, 2021, 5 a.m. 15.1 ppb (15) 0.5 ppb (1) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 25.0 ppb (24) 0.2 ppb (3) N/A 2.9 μg/m3 (13) 24.0
 
Feb. 16, 2021, 4 a.m. 20.3 ppb (20) 0.7 ppb (1) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 20.0 ppb (19) 0.2 ppb (3) N/A 6.5 μg/m3 (28) 28.0
 
Feb. 16, 2021, 3 a.m. N/A 51.1 ppb (49) N/A N/A N/A 0.0 ppb (0) 14.0 ppb (13) 0.3 ppb (4) N/A 4.7 μg/m3 (20) 49.0
 
Feb. 16, 2021, 2 a.m. 26.7 ppb (26) 19.5 ppb (19) N/A 25.0 ppb (24) N/A 0.0 ppb (0) 17.0 ppb (16) 0.3 ppb (4) N/A 3.6 μg/m3 (16) 26.0
 
Feb. 16, 2021, 1 a.m. 23.6 ppb (23) 1.9 ppb (2) N/A 22.0 ppb (21) N/A 0.0 ppb (0) 19.0 ppb (18) 0.2 ppb (3) N/A 4.6 μg/m3 (20) 23.0
 
Feb. 16, 2021, midnight 15.6 ppb (15) 1.1 ppb (2) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 28.0 ppb (26) 0.1 ppb (2) N/A 1.5 μg/m3 (7) 26.0
 
Feb. 15, 2021, 11 p.m. 12.8 ppb (13) 0.6 ppb (1) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 31.0 ppb (29) 0.1 ppb (2) N/A 2.7 μg/m3 (12) 29.0
 
Feb. 15, 2021, 10 p.m. 12.9 ppb (13) 1.6 ppb (2) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 32.0 ppb (30) 0.1 ppb (2) N/A 2.2 μg/m3 (10) 30.0
 
Feb. 15, 2021, 9 p.m. 7.3 ppb (7) 0.8 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 37.0 ppb (35) 0.1 ppb (2) N/A 1.3 μg/m3 (6) 35.0
 
Feb. 15, 2021, 8 p.m. 7.0 ppb (7) 1.2 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 38.0 ppb (36) 0.1 ppb (2) N/A 1.7 μg/m3 (8) 36.0
 
Feb. 15, 2021, 7 p.m. 7.6 ppb (8) 1.8 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 38.0 ppb (36) 0.1 ppb (2) N/A 1.6 μg/m3 (7) 36.0
 
Feb. 15, 2021, 6 p.m. 10.0 ppb (10) 2.3 ppb (3) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 35.0 ppb (33) 0.1 ppb (2) N/A 2.2 μg/m3 (10) 33.0
 
Feb. 15, 2021, 5 p.m. 11.8 ppb (12) 2.4 ppb (3) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 33.0 ppb (31) 0.1 ppb (2) N/A 2.3 μg/m3 (10) 31.0
 
Feb. 15, 2021, 4 p.m. 14.6 ppb (14) 2.8 ppb (3) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 29.0 ppb (27) 0.1 ppb (2) N/A 3.3 μg/m3 (14) 27.0
 
Feb. 15, 2021, 3 p.m. 20.0 ppb (19) 3.5 ppb (4) N/A 16.0 ppb (16) N/A 0.0 ppb (0) 23.0 ppb (22) 0.2 ppb (3) N/A 2.7 μg/m3 (12) 22.0
 
Feb. 15, 2021, 2 p.m. 16.0 ppb (16) 1.3 ppb (2) N/A 15.0 ppb (15) N/A 0.0 ppb (0) 24.0 ppb (23) 0.2 ppb (3) N/A 2.8 μg/m3 (12) 23.0
 
Feb. 15, 2021, 1 p.m. 15.7 ppb (15) 0.8 ppb (1) N/A 15.0 ppb (15) N/A 0.0 ppb (0) 22.0 ppb (21) 0.1 ppb (2) N/A 4.1 μg/m3 (18) 21.0
 
Feb. 15, 2021, noon 21.3 ppb (21) 1.2 ppb (2) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 17.0 ppb (16) 0.2 ppb (3) N/A 1.7 μg/m3 (8) 21.0
 
Feb. 15, 2021, 11 a.m. 22.4 ppb (22) 0.7 ppb (1) N/A 22.0 ppb (21) N/A 0.0 ppb (0) 15.0 ppb (14) N/A N/A 1.5 μg/m3 (7) 22.0
 
Feb. 15, 2021, 10 a.m. 10.6 ppb (10) 0.0 ppb (0) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 28.0 ppb (26) 0.1 ppb (2) N/A 1.1 μg/m3 (5) 26.0
 
Feb. 15, 2021, 9 a.m. 8.4 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 25.0 ppb (24) 0.1 ppb (2) N/A 1.0 μg/m3 (5) 24.0
 
Feb. 15, 2021, 8 a.m. 7.0 ppb (7) 0.1 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 32.0 ppb (30) 0.1 ppb (2) N/A 1.3 μg/m3 (6) 30.0
 
Feb. 15, 2021, 7 a.m. 9.3 ppb (9) 0.2 ppb (1) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 28.0 ppb (26) 0.1 ppb (2) N/A 2.0 μg/m3 (9) 26.0
 
Feb. 15, 2021, 6 a.m. 14.0 ppb (14) 0.8 ppb (1) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 25.0 ppb (24) 0.1 ppb (2) N/A 3.0 μg/m3 (13) 24.0
 
Feb. 15, 2021, 5 a.m. 16.8 ppb (16) 0.7 ppb (1) N/A 16.0 ppb (16) N/A 0.0 ppb (0) 21.0 ppb (20) 0.2 ppb (3) N/A 3.9 μg/m3 (17) 20.0
 
Feb. 15, 2021, 4 a.m. 17.7 ppb (17) 0.9 ppb (1) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 22.0 ppb (21) 0.2 ppb (3) N/A 4.7 μg/m3 (20) 21.0
 
Feb. 15, 2021, 3 a.m. 13.0 ppb (13) 0.9 ppb (1) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 27.0 ppb (25) 0.1 ppb (2) N/A 3.5 μg/m3 (15) 25.0
 
Feb. 15, 2021, 2 a.m. 19.9 ppb (19) 1.6 ppb (2) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 21.0 ppb (20) 0.2 ppb (3) N/A 6.8 μg/m3 (29) 29.0
 
Feb. 15, 2021, 1 a.m. 10.9 ppb (11) 0.8 ppb (1) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 31.0 ppb (29) 0.1 ppb (2) N/A 4.7 μg/m3 (20) 29.0
 
Feb. 15, 2021, midnight 4.0 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 39.0 ppb (37) 0.1 ppb (2) N/A 3.6 μg/m3 (16) 37.0
 
Feb. 14, 2021, 11 p.m. 6.5 ppb (7) 0.8 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 35.0 ppb (33) 0.1 ppb (2) N/A 4.8 μg/m3 (20) 33.0
 
Feb. 14, 2021, 10 p.m. 5.6 ppb (6) 0.5 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 35.0 ppb (33) 0.1 ppb (2) N/A 4.6 μg/m3 (20) 33.0
 
Feb. 14, 2021, 9 p.m. 6.4 ppb (7) 1.5 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 34.0 ppb (32) 0.1 ppb (2) N/A 4.5 μg/m3 (19) 32.0
 
Feb. 14, 2021, 8 p.m. 7.9 ppb (8) 2.5 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 35.0 ppb (33) 0.1 ppb (2) N/A 4.3 μg/m3 (18) 33.0
 
Feb. 14, 2021, 7 p.m. 7.6 ppb (8) 2.4 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 34.0 ppb (32) 0.1 ppb (2) N/A 4.3 μg/m3 (18) 32.0
 
Feb. 14, 2021, 6 p.m. 8.1 ppb (8) 2.2 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 33.0 ppb (31) 0.1 ppb (2) N/A 4.5 μg/m3 (19) 31.0
 
Feb. 14, 2021, 5 p.m. 4.0 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 37.0 ppb (35) 0.1 ppb (2) N/A 2.9 μg/m3 (13) 35.0
 
Feb. 14, 2021, 4 p.m. 3.1 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (36) 0.1 ppb (2) N/A 3.3 μg/m3 (14) 36.0
 
Feb. 14, 2021, 3 p.m. 3.3 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 38.0 ppb (36) 0.1 ppb (2) N/A 3.1 μg/m3 (13) 36.0
 
Feb. 14, 2021, 2 p.m. 2.6 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 38.0 ppb (36) 0.1 ppb (2) N/A 4.4 μg/m3 (19) 36.0
 
Feb. 14, 2021, 1 p.m. 2.5 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (35) 0.1 ppb (2) N/A 4.7 μg/m3 (20) 35.0
 
Feb. 14, 2021, noon 3.0 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 36.0 ppb (34) 0.1 ppb (2) N/A 5.0 μg/m3 (21) 34.0
 
Feb. 14, 2021, 11 a.m. N/A 131.6 ppb (107) N/A N/A N/A 1.0 ppb (2) 34.0 ppb (32) 0.1 ppb (2) N/A 5.7 μg/m3 (24) 107.0
 
Feb. 14, 2021, 10 a.m. 3.6 ppb (4) -0.1 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 33.0 ppb (31) 0.1 ppb (2) N/A 6.1 μg/m3 (26) 31.0
 
Feb. 14, 2021, 9 a.m. 4.1 ppb (4) -0.1 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 27.0 ppb (25) 0.1 ppb (2) N/A 5.5 μg/m3 (23) 25.0
 
Feb. 14, 2021, 8 a.m. 4.0 ppb (4) -0.1 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (29) 0.1 ppb (2) N/A 2.1 μg/m3 (9) 29.0
 
Feb. 14, 2021, 7 a.m. 3.7 ppb (4) -0.3 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 31.0 ppb (29) 0.1 ppb (2) N/A 1.6 μg/m3 (7) 29.0
 
Feb. 14, 2021, 6 a.m. 4.2 ppb (4) -0.2 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 32.0 ppb (30) 0.1 ppb (2) N/A 1.2 μg/m3 (5) 30.0
 
Feb. 14, 2021, 5 a.m. 5.9 ppb (6) 0.1 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 30.0 ppb (28) 0.1 ppb (2) N/A 1.7 μg/m3 (8) 28.0
 
Feb. 14, 2021, 4 a.m. 4.3 ppb (5) -0.1 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 31.0 ppb (29) 0.0 ppb (0) N/A 1.8 μg/m3 (8) 29.0
 
Feb. 14, 2021, 3 a.m. 6.6 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 26.0 ppb (25) 0.0 ppb (0) N/A 2.2 μg/m3 (10) 25.0
 
Feb. 14, 2021, 2 a.m. 13.3 ppb (13) 0.2 ppb (1) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 16.0 ppb (15) 0.1 ppb (2) N/A 3.9 μg/m3 (17) 17.0
 
Feb. 14, 2021, 1 a.m. 14.3 ppb (14) 0.3 ppb (1) N/A 14.0 ppb (14) N/A 1.0 ppb (2) 15.0 ppb (14) 0.1 ppb (2) N/A 2.8 μg/m3 (12) 14.0
 
Feb. 14, 2021, midnight 13.8 ppb (14) 0.8 ppb (1) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 18.0 ppb (17) 0.1 ppb (2) N/A 2.4 μg/m3 (10) 17.0
 
Feb. 13, 2021, 11 p.m. 10.8 ppb (11) 1.1 ppb (2) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 22.0 ppb (21) 0.1 ppb (2) N/A 1.9 μg/m3 (8) 21.0
 
Feb. 13, 2021, 10 p.m. 11.5 ppb (11) 1.4 ppb (2) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 24.0 ppb (23) 0.1 ppb (2) N/A 1.6 μg/m3 (7) 23.0
 
Feb. 13, 2021, 9 p.m. 9.6 ppb (10) 1.4 ppb (2) N/A 8.0 ppb (8) N/A 1.0 ppb (2) 24.0 ppb (23) 0.1 ppb (2) N/A 2.0 μg/m3 (9) 23.0
 
Feb. 13, 2021, 8 p.m. 8.6 ppb (9) 1.1 ppb (2) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 26.0 ppb (25) 0.1 ppb (2) N/A 1.5 μg/m3 (7) 25.0
 
Feb. 13, 2021, 7 p.m. 11.8 ppb (12) 1.8 ppb (2) N/A 10.0 ppb (10) N/A 1.0 ppb (2) 23.0 ppb (22) 0.1 ppb (2) N/A 2.3 μg/m3 (10) 22.0
 
Feb. 13, 2021, 6 p.m. 13.3 ppb (13) 2.5 ppb (3) N/A 11.0 ppb (11) N/A 1.0 ppb (2) 20.0 ppb (19) 0.2 ppb (3) N/A 3.7 μg/m3 (16) 19.0
 
Feb. 13, 2021, 5 p.m. 10.4 ppb (10) 1.5 ppb (2) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 25.0 ppb (24) 0.1 ppb (2) N/A 1.7 μg/m3 (8) 24.0
 
Feb. 13, 2021, 4 p.m. 7.7 ppb (8) 0.6 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 27.0 ppb (25) 0.1 ppb (2) N/A 1.1 μg/m3 (5) 25.0
 
Feb. 13, 2021, 3 p.m. 11.7 ppb (12) 1.2 ppb (2) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 21.0 ppb (20) 0.1 ppb (2) N/A 1.5 μg/m3 (7) 20.0
 
Feb. 13, 2021, 2 p.m. 17.0 ppb (17) 1.8 ppb (2) N/A 15.0 ppb (15) N/A 0.0 ppb (0) 17.0 ppb (16) 0.1 ppb (2) N/A 1.8 μg/m3 (8) 17.0
 
Feb. 13, 2021, 1 p.m. 29.5 ppb (28) 3.8 ppb (4) N/A 26.0 ppb (25) N/A 0.0 ppb (0) 4.0 ppb (4) 0.2 ppb (3) N/A 3.5 μg/m3 (15) 28.0
 
Feb. 13, 2021, noon 21.8 ppb (21) 10.7 ppb (11) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 8.0 ppb (8) 0.2 ppb (3) N/A 2.0 μg/m3 (9) 21.0
 
Feb. 13, 2021, 11 a.m. N/A 87.3 ppb (87) N/A N/A N/A 0.0 ppb (0) 9.0 ppb (9) 0.2 ppb (3) N/A 3.4 μg/m3 (15) 87.0
 
Feb. 13, 2021, 10 a.m. 15.5 ppb (15) 0.7 ppb (1) N/A 15.0 ppb (15) N/A 0.0 ppb (0) 13.0 ppb (13) 0.1 ppb (2) N/A 2.2 μg/m3 (10) 15.0
 
Feb. 13, 2021, 9 a.m. 7.8 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 19.0 ppb (18) 0.0 ppb (0) N/A 0.2 μg/m3 (1) 18.0
 
Feb. 13, 2021, 8 a.m. 14.4 ppb (14) 0.6 ppb (1) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 17.0 ppb (16) 0.1 ppb (2) N/A 1.4 μg/m3 (6) 16.0
 
Feb. 13, 2021, 7 a.m. 28.7 ppb (28) 3.2 ppb (4) N/A 25.0 ppb (24) N/A 0.0 ppb (0) 3.0 ppb (3) 0.3 ppb (4) N/A 5.5 μg/m3 (23) 28.0
 
Feb. 13, 2021, 6 a.m. 35.3 ppb (34) 8.1 ppb (8) N/A 27.0 ppb (26) N/A 0.0 ppb (0) 2.0 ppb (2) 0.4 ppb (5) N/A 6.1 μg/m3 (26) 34.0
 
Feb. 13, 2021, 5 a.m. 25.4 ppb (24) 2.6 ppb (3) N/A 23.0 ppb (22) N/A 0.0 ppb (0) 8.0 ppb (8) 0.3 ppb (4) N/A 4.0 μg/m3 (17) 24.0
 
Feb. 13, 2021, 4 a.m. 17.8 ppb (17) 1.3 ppb (2) N/A 16.0 ppb (16) N/A 0.0 ppb (0) 17.0 ppb (16) 0.2 ppb (3) N/A 2.5 μg/m3 (11) 17.0
 
Feb. 13, 2021, 3 a.m. 26.5 ppb (25) 1.7 ppb (2) N/A 25.0 ppb (24) N/A 0.0 ppb (0) 10.0 ppb (10) 0.2 ppb (3) N/A 4.9 μg/m3 (21) 25.0
 
Feb. 13, 2021, 2 a.m. 23.9 ppb (23) 1.7 ppb (2) N/A 22.0 ppb (21) N/A 0.0 ppb (0) 13.0 ppb (13) 0.2 ppb (3) N/A 2.8 μg/m3 (12) 23.0
 
Feb. 13, 2021, 1 a.m. 11.4 ppb (11) 0.1 ppb (1) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 26.0 ppb (25) 0.1 ppb (2) N/A 1.1 μg/m3 (5) 25.0
 
Feb. 13, 2021, midnight 5.3 ppb (5) 0.1 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 33.0 ppb (31) 0.1 ppb (2) N/A 0.7 μg/m3 (3) 31.0
 
Feb. 12, 2021, 11 p.m. 4.2 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 33.0 ppb (31) 0.0 ppb (0) N/A 0.5 μg/m3 (3) 31.0
 
Feb. 12, 2021, 10 p.m. 3.4 ppb (4) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (31) 0.0 ppb (0) N/A 0.4 μg/m3 (2) 31.0
 
Feb. 12, 2021, 9 p.m. 2.8 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 34.0 ppb (32) 0.0 ppb (0) N/A 0.1 μg/m3 (1) 32.0
 
Feb. 12, 2021, 8 p.m. 3.2 ppb (4) 0.4 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (30) 0.0 ppb (0) N/A 0.1 μg/m3 (1) 30.0
 
Feb. 12, 2021, 7 p.m. 7.0 ppb (7) 1.2 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 30.0 ppb (28) 0.0 ppb (0) N/A 1.3 μg/m3 (6) 28.0
 
Feb. 12, 2021, 6 p.m. 12.1 ppb (12) 2.4 ppb (3) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 28.0 ppb (26) 0.0 ppb (0) N/A 1.7 μg/m3 (8) 26.0
 
Feb. 12, 2021, 5 p.m. 19.4 ppb (19) 4.2 ppb (4) N/A 15.0 ppb (15) N/A 0.0 ppb (0) 24.0 ppb (23) 0.1 ppb (2) N/A 2.6 μg/m3 (11) 23.0
 
Feb. 12, 2021, 4 p.m. 27.1 ppb (26) 4.7 ppb (5) N/A 22.0 ppb (21) N/A N/A 16.0 ppb (15) 0.2 ppb (3) N/A 3.6 μg/m3 (16) 26.0
 
Feb. 12, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.1 μg/m3 (13) 13.0
 
Feb. 12, 2021, 2 p.m. 18.7 ppb (18) 2.9 ppb (3) N/A 16.0 ppb (16) N/A 0.0 ppb (0) 21.0 ppb (20) 0.1 ppb (2) N/A 1.9 μg/m3 (8) 20.0
 
Feb. 12, 2021, 1 p.m. 8.7 ppb (9) 0.2 ppb (1) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 30.0 ppb (28) 0.1 ppb (2) N/A 0.8 μg/m3 (4) 28.0
 
Feb. 12, 2021, noon 5.2 ppb (5) -0.2 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 34.0 ppb (32) 0.1 ppb (2) N/A 0.9 μg/m3 (4) 32.0
 
Feb. 12, 2021, 11 a.m. 5.2 ppb (5) -0.2 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 34.0 ppb (32) 0.1 ppb (2) N/A 1.4 μg/m3 (6) 32.0
 
Feb. 12, 2021, 10 a.m. 6.6 ppb (7) -0.2 ppb (0) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 31.0 ppb (29) 0.0 ppb (0) N/A 1.7 μg/m3 (8) 29.0
 
Feb. 12, 2021, 9 a.m. 4.6 ppb (5) -0.1 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 29.0 ppb (27) 0.0 ppb (0) N/A 1.1 μg/m3 (5) 27.0
 
Feb. 12, 2021, 8 a.m. 5.4 ppb (6) -0.2 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 33.0 ppb (31) 0.0 ppb (0) N/A 1.2 μg/m3 (5) 31.0
 
Feb. 12, 2021, 7 a.m. 9.2 ppb (9) -0.2 ppb (0) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 31.0 ppb (29) 0.1 ppb (2) N/A 1.2 μg/m3 (5) 29.0
 
Feb. 12, 2021, 6 a.m. 20.8 ppb (20) 0.5 ppb (1) N/A 20.0 ppb (19) N/A 1.0 ppb (2) 16.0 ppb (15) 0.1 ppb (2) N/A 1.9 μg/m3 (8) 20.0
 
Feb. 12, 2021, 5 a.m. 13.1 ppb (13) 0.0 ppb (0) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 26.0 ppb (25) 0.1 ppb (2) N/A 1.3 μg/m3 (6) 25.0
 
Feb. 12, 2021, 4 a.m. 13.7 ppb (13) 0.0 ppb (0) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 27.0 ppb (25) 0.1 ppb (2) N/A 2.8 μg/m3 (12) 25.0
 
Feb. 12, 2021, 3 a.m. 12.6 ppb (12) -0.1 ppb (0) N/A 13.0 ppb (13) N/A 1.0 ppb (2) 28.0 ppb (26) 0.1 ppb (2) N/A 1.9 μg/m3 (8) 26.0
 
Feb. 12, 2021, 2 a.m. 8.0 ppb (8) -0.2 ppb (0) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 34.0 ppb (32) 0.1 ppb (2) N/A 1.0 μg/m3 (5) 32.0
 
Feb. 12, 2021, 1 a.m. 9.3 ppb (9) 0.0 ppb (0) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 33.0 ppb (31) 0.1 ppb (2) N/A 0.7 μg/m3 (3) 31.0
 
Feb. 12, 2021, midnight 11.9 ppb (12) 0.7 ppb (1) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 32.0 ppb (30) 0.1 ppb (2) N/A 1.5 μg/m3 (7) 30.0
 
Feb. 11, 2021, 11 p.m. 13.0 ppb (13) 1.5 ppb (2) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 32.0 ppb (30) 0.1 ppb (2) N/A 2.8 μg/m3 (12) 30.0
 
Feb. 11, 2021, 10 p.m. 10.9 ppb (11) 2.5 ppb (3) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 35.0 ppb (33) 0.1 ppb (2) N/A 2.4 μg/m3 (10) 33.0
 
Feb. 11, 2021, 9 p.m. 8.4 ppb (8) 2.0 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 37.0 ppb (35) 0.1 ppb (2) N/A 2.1 μg/m3 (9) 35.0
 
Feb. 11, 2021, 8 p.m. 5.5 ppb (6) 1.3 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 37.0 ppb (35) 0.1 ppb (2) N/A 1.6 μg/m3 (7) 35.0
 
Feb. 11, 2021, 7 p.m. 5.5 ppb (6) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 37.0 ppb (35) 0.0 ppb (0) N/A 0.7 μg/m3 (3) 35.0
 
Feb. 11, 2021, 6 p.m. 12.5 ppb (12) 3.8 ppb (4) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 33.0 ppb (31) 0.1 ppb (2) N/A 1.5 μg/m3 (7) 31.0
 
Feb. 11, 2021, 5 p.m. 20.7 ppb (20) 6.0 ppb (6) N/A 15.0 ppb (15) N/A 0.0 ppb (0) 27.0 ppb (25) 0.2 ppb (3) N/A 1.9 μg/m3 (8) 25.0
 
Feb. 11, 2021, 4 p.m. 44.9 ppb (43) 15.1 ppb (15) N/A 30.0 ppb (29) N/A 0.0 ppb (0) 10.0 ppb (10) 0.4 ppb (5) N/A 4.7 μg/m3 (20) 43.0
 
Feb. 11, 2021, 3 p.m. 62.2 ppb (60) 26.9 ppb (26) N/A 35.0 ppb (34) N/A 0.0 ppb (0) 4.0 ppb (4) 0.5 ppb (6) N/A 6.3 μg/m3 (27) 60.0
 
Feb. 11, 2021, 2 p.m. 72.3 ppb (71) 36.3 ppb (35) N/A 36.0 ppb (34) N/A 0.0 ppb (0) 2.0 ppb (2) 0.6 ppb (7) N/A 5.1 μg/m3 (22) 71.0
 
Feb. 11, 2021, 1 p.m. 82.0 ppb (81) 49.5 ppb (47) N/A 33.0 ppb (32) N/A 0.0 ppb (0) 1.0 ppb (1) 0.5 ppb (6) N/A 3.3 μg/m3 (14) 81.0
 
Feb. 11, 2021, noon 78.5 ppb (78) 48.1 ppb (46) N/A 31.0 ppb (30) N/A 0.0 ppb (0) 1.0 ppb (1) 0.5 ppb (6) N/A 4.8 μg/m3 (20) 78.0
 
Feb. 11, 2021, 11 a.m. 68.3 ppb (67) 38.7 ppb (37) N/A 30.0 ppb (29) N/A 0.0 ppb (0) 1.0 ppb (1) 0.4 ppb (5) N/A 5.3 μg/m3 (23) 67.0
 
Feb. 11, 2021, 10 a.m. 57.7 ppb (55) 28.5 ppb (27) N/A 29.0 ppb (28) N/A 0.0 ppb (0) 1.0 ppb (1) 0.4 ppb (5) N/A 5.1 μg/m3 (22) 55.0
 
Feb. 11, 2021, 9 a.m. 47.2 ppb (45) 19.5 ppb (19) N/A 28.0 ppb (27) N/A 0.0 ppb (0) 1.0 ppb (1) 0.3 ppb (4) N/A 3.8 μg/m3 (16) 45.0
 
Feb. 11, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.5 μg/m3 (19) 19.0
 
Feb. 11, 2021, 7 a.m. 40.3 ppb (39) 11.7 ppb (12) N/A 29.0 ppb (28) N/A 0.0 ppb (0) 1.0 ppb (1) 0.3 ppb (4) N/A 6.4 μg/m3 (27) 39.0
 
Feb. 11, 2021, 6 a.m. 46.2 ppb (44) 15.9 ppb (15) N/A 30.0 ppb (29) N/A 0.0 ppb (0) 1.0 ppb (1) 0.3 ppb (4) N/A 6.0 μg/m3 (25) 44.0
 
Feb. 11, 2021, 5 a.m. 46.2 ppb (44) 14.8 ppb (14) N/A 31.0 ppb (30) N/A 0.0 ppb (0) 2.0 ppb (2) 0.4 ppb (5) N/A 5.8 μg/m3 (25) 44.0
 
Feb. 11, 2021, 4 a.m. 37.5 ppb (36) 7.9 ppb (8) N/A 30.0 ppb (29) N/A 0.0 ppb (0) 5.0 ppb (5) 0.3 ppb (4) N/A 6.2 μg/m3 (26) 36.0
 
Feb. 11, 2021, 3 a.m. 29.8 ppb (29) 4.5 ppb (5) N/A 25.0 ppb (24) N/A 0.0 ppb (0) 11.0 ppb (11) 0.3 ppb (4) N/A 5.9 μg/m3 (25) 29.0
 
Feb. 11, 2021, 2 a.m. 32.1 ppb (31) 3.7 ppb (4) N/A 28.0 ppb (27) N/A 0.0 ppb (0) 9.0 ppb (9) 0.3 ppb (4) N/A 7.6 μg/m3 (32) 32.0
 
Feb. 11, 2021, 1 a.m. 32.0 ppb (31) 5.2 ppb (5) N/A 27.0 ppb (26) N/A 0.0 ppb (0) 13.0 ppb (13) 0.3 ppb (4) N/A 7.7 μg/m3 (33) 33.0