ID: 2019

AQSQID: 560210100

Site Name: Cheyenne Ncore

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

Updated: Jan. 20, 2021, 8:31 a.m.

Location: Cheyenne (Chief Washwick Ave), WY

Reporting: True, Located: True

Current AQI: 19.0

Cheyenne (Chief Washwick Ave) WY, US: 41.18222, -104.778336

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 20, 2021, 6 a.m. 17.2 ppb (17) 0.4 ppb (1) 17.9 ppb (17) 17.0 ppb (17) 17.5 ppb (17) 0.0 ppb (0) 20.0 ppb (19) 0.11 ppb (2) 9.0 μg/m3 (9) 4.0 μg/m3 (17) 19.0
 
Jan. 20, 2021, 5 a.m. 22.8 ppb (22) 0.5 ppb (1) 24.6 ppb (24) 22.0 ppb (21) 24.0 ppb (23) 0.0 ppb (0) 14.0 ppb (13) 0.12 ppb (2) 15.0 μg/m3 (14) 2.0 μg/m3 (9) 24.0
 
Jan. 20, 2021, 4 a.m. 11.3 ppb (11) 0.1 ppb (1) 11.7 ppb (12) 11.0 ppb (11) 11.6 ppb (11) 0.0 ppb (0) 26.0 ppb (25) 0.11 ppb (2) 15.0 μg/m3 (14) 4.0 μg/m3 (17) 25.0
 
Jan. 20, 2021, 3 a.m. 10.1 ppb (10) 0.1 ppb (1) 10.2 ppb (10) 10.0 ppb (10) 10.1 ppb (10) 0.0 ppb (0) 27.0 ppb (25) 0.1 ppb (2) 12.0 μg/m3 (12) 3.0 μg/m3 (13) 25.0
 
Jan. 20, 2021, 2 a.m. 14.5 ppb (14) 0.2 ppb (1) 15.1 ppb (15) 14.0 ppb (14) 14.9 ppb (15) 0.0 ppb (0) 22.0 ppb (21) 0.13 ppb (2) 18.0 μg/m3 (17) 4.0 μg/m3 (17) 21.0
 
Jan. 20, 2021, 1 a.m. 9.2 ppb (9) 0.1 ppb (1) 9.0 ppb (9) 9.0 ppb (9) 8.9 ppb (9) 0.0 ppb (0) 28.0 ppb (26) 0.12 ppb (2) 9.0 μg/m3 (9) 4.0 μg/m3 (17) 26.0
 
Jan. 20, 2021, midnight 9.5 ppb (9) 0.1 ppb (1) 9.2 ppb (9) 9.0 ppb (9) 9.1 ppb (9) 0.0 ppb (0) 29.0 ppb (27) 0.12 ppb (2) 11.0 μg/m3 (11) 2.0 μg/m3 (9) 27.0
 
Jan. 19, 2021, 11 p.m. 4.7 ppb (5) 0.3 ppb (1) 4.0 ppb (4) 4.0 ppb (4) 3.6 ppb (4) 0.0 ppb (0) 37.0 ppb (35) 0.09 ppb (2) 8.0 μg/m3 (8) -1.0 μg/m3 (0) 35.0
 
Jan. 19, 2021, 10 p.m. 2.3 ppb (3) 0.4 ppb (1) 1.4 ppb (2) 2.0 ppb (2) 0.9 ppb (1) 0.0 ppb (0) 42.0 ppb (39) 0.08 ppb (2) 6.0 μg/m3 (6) -4.0 μg/m3 (0) 39.0
 
Jan. 19, 2021, 9 p.m. 1.0 ppb (1) 0.2 ppb (1) -0.1 ppb (0) 1.0 ppb (1) -0.3 ppb (0) 0.0 ppb (0) 44.0 ppb (41) 0.08 ppb (2) 5.0 μg/m3 (5) -3.0 μg/m3 (0) 41.0
 
Jan. 19, 2021, 8 p.m. 1.4 ppb (2) 0.4 ppb (1) 0.3 ppb (1) 1.0 ppb (1) -0.1 ppb (0) 0.0 ppb (0) 43.0 ppb (40) 0.08 ppb (2) 6.0 μg/m3 (6) -2.0 μg/m3 (0) 40.0
 
Jan. 19, 2021, 7 p.m. 1.5 ppb (2) 0.5 ppb (1) 0.4 ppb (1) 1.0 ppb (1) -0.1 ppb (0) 0.0 ppb (0) 43.0 ppb (40) 0.08 ppb (2) 5.0 μg/m3 (5) -1.0 μg/m3 (0) 40.0
 
Jan. 19, 2021, 6 p.m. 0.8 ppb (1) 0.2 ppb (1) -0.3 ppb (0) 1.0 ppb (1) -0.7 ppb (0) 0.0 ppb (0) 43.0 ppb (40) 0.08 ppb (2) 3.0 μg/m3 (3) 0.0 μg/m3 (0) 40.0
 
Jan. 19, 2021, 5 p.m. 0.8 ppb (1) 0.2 ppb (1) -0.4 ppb (0) 1.0 ppb (1) -0.7 ppb (0) 0.0 ppb (0) 42.0 ppb (39) 0.07 ppb (2) 4.0 μg/m3 (4) 1.0 μg/m3 (5) 39.0
 
Jan. 19, 2021, 4 p.m. 1.2 ppb (2) 0.3 ppb (1) 0.0 ppb (0) 1.0 ppb (1) -0.4 ppb (0) 0.0 ppb (0) 40.0 ppb (38) 0.07 ppb (2) 6.0 μg/m3 (6) 3.0 μg/m3 (13) 38.0
 
Jan. 19, 2021, 3 p.m. 2.9 ppb (3) 0.5 ppb (1) 1.7 ppb (2) 2.0 ppb (2) 1.1 ppb (2) 0.0 ppb (0) 35.0 ppb (33) 0.08 ppb (2) 7.0 μg/m3 (7) 3.0 μg/m3 (13) 33.0
 
Jan. 19, 2021, 2 p.m. 3.2 ppb (4) 0.1 ppb (1) 2.0 ppb (2) 3.0 ppb (3) 1.9 ppb (2) 0.0 ppb (0) 32.0 ppb (30) 0.08 ppb (2) 4.0 μg/m3 (4) -1.0 μg/m3 (0) 30.0
 
Jan. 19, 2021, 1 p.m. 1.3 ppb (2) 0.0 ppb (0) 0.1 ppb (1) 1.0 ppb (1) 0.1 ppb (1) 0.0 ppb (0) 36.0 ppb (34) 0.07 ppb (2) 3.0 μg/m3 (3) -1.0 μg/m3 (0) 34.0
 
Jan. 19, 2021, noon 0.9 ppb (1) -0.1 ppb (0) -0.3 ppb (0) 1.0 ppb (1) -0.4 ppb (0) 0.0 ppb (0) 37.0 ppb (35) 0.07 ppb (2) 4.0 μg/m3 (4) 0.0 μg/m3 (0) 35.0
 
Jan. 19, 2021, 11 a.m. 1.0 ppb (1) 0.0 ppb (0) -0.3 ppb (0) 1.0 ppb (1) -0.3 ppb (0) 0.0 ppb (0) 36.0 ppb (34) 0.07 ppb (2) 1.0 μg/m3 (1) 1.0 μg/m3 (5) 34.0
 
Jan. 19, 2021, 10 a.m. 0.7 ppb (1) 0.0 ppb (0) -0.6 ppb (0) 1.0 ppb (1) -0.6 ppb (0) 0.0 ppb (0) 37.0 ppb (35) 0.07 ppb (2) -2.0 μg/m3 (0) 0.0 μg/m3 (0) 35.0
 
Jan. 19, 2021, 9 a.m. 0.5 ppb (1) -0.1 ppb (0) -0.7 ppb (0) 1.0 ppb (1) -0.8 ppb (0) 0.0 ppb (0) 36.0 ppb (34) 0.07 ppb (2) -1.0 μg/m3 (0) 0.0 μg/m3 (0) 34.0
 
Jan. 19, 2021, 8 a.m. 0.5 ppb (1) -0.1 ppb (0) -0.7 ppb (0) 1.0 ppb (1) -0.7 ppb (0) 0.0 ppb (0) 37.0 ppb (35) 0.07 ppb (2) 1.0 μg/m3 (1) 0.0 μg/m3 (0) 35.0
 
Jan. 19, 2021, 7 a.m. 0.5 ppb (1) 0.0 ppb (0) -0.7 ppb (0) 1.0 ppb (1) -0.7 ppb (0) 0.0 ppb (0) 36.0 ppb (34) 0.07 ppb (2) 0.0 μg/m3 (0) 1.0 μg/m3 (5) 34.0
 
Jan. 19, 2021, 6 a.m. 0.5 ppb (1) -0.1 ppb (0) -0.6 ppb (0) 1.0 ppb (1) -0.7 ppb (0) 0.0 ppb (0) 35.0 ppb (33) 0.08 ppb (2) -1.0 μg/m3 (0) 1.0 μg/m3 (5) 33.0
 
Jan. 19, 2021, 5 a.m. 1.1 ppb (2) -0.1 ppb (0) -0.4 ppb (0) 1.0 ppb (1) -0.4 ppb (0) 0.0 ppb (0) 36.0 ppb (34) 0.1 ppb (2) 0.0 μg/m3 (0) -1.0 μg/m3 (0) 34.0
 
Jan. 19, 2021, 4 a.m. 0.9 ppb (1) -0.1 ppb (0) -0.3 ppb (0) 1.0 ppb (1) -0.3 ppb (0) 0.0 ppb (0) 36.0 ppb (34) 0.1 ppb (2) -1.0 μg/m3 (0) -2.0 μg/m3 (0) 34.0
 
Jan. 19, 2021, 3 a.m. 0.6 ppb (1) -0.1 ppb (0) -0.6 ppb (0) 1.0 ppb (1) -0.6 ppb (0) 0.0 ppb (0) 38.0 ppb (36) 0.09 ppb (2) 2.0 μg/m3 (2) -2.0 μg/m3 (0) 36.0
 
Jan. 19, 2021, 2 a.m. 0.5 ppb (1) -0.1 ppb (0) -0.7 ppb (0) 1.0 ppb (1) -0.7 ppb (0) 0.0 ppb (0) 38.0 ppb (36) 0.09 ppb (2) 4.0 μg/m3 (4) -1.0 μg/m3 (0) 36.0
 
Jan. 19, 2021, 1 a.m. 0.5 ppb (1) -0.1 ppb (0) -0.7 ppb (0) 1.0 ppb (1) -0.8 ppb (0) 0.0 ppb (0) 37.0 ppb (35) 0.08 ppb (2) 3.0 μg/m3 (3) -2.0 μg/m3 (0) 35.0
 
Jan. 19, 2021, midnight 0.4 ppb (1) -0.1 ppb (0) -0.8 ppb (0) 1.0 ppb (1) -0.8 ppb (0) 0.0 ppb (0) 36.0 ppb (34) 0.08 ppb (2) -3.0 μg/m3 (0) N/A 34.0
 
Jan. 18, 2021, 11 p.m. 0.9 ppb (1) 0.0 ppb (0) -0.3 ppb (0) 1.0 ppb (1) -0.4 ppb (0) 0.0 ppb (0) 36.0 ppb (34) 0.09 ppb (2) N/A N/A 34.0
 
Jan. 18, 2021, 10 p.m. 0.5 ppb (1) 0.0 ppb (0) -0.7 ppb (0) 0.0 ppb (0) -0.8 ppb (0) 0.0 ppb (0) 37.0 ppb (35) 0.1 ppb (2) -3.0 μg/m3 (0) -4.0 μg/m3 (0) 35.0
 
Jan. 18, 2021, 9 p.m. 0.4 ppb (1) 0.0 ppb (0) -0.9 ppb (0) 0.0 ppb (0) -1.0 ppb (0) 0.0 ppb (0) 39.0 ppb (37) 0.09 ppb (2) 2.0 μg/m3 (2) -1.0 μg/m3 (0) 37.0
 
Jan. 18, 2021, 8 p.m. 0.3 ppb (1) 0.0 ppb (0) -0.9 ppb (0) 0.0 ppb (0) -1.0 ppb (0) 0.0 ppb (0) 40.0 ppb (38) 0.09 ppb (2) 5.0 μg/m3 (5) -2.0 μg/m3 (0) 38.0
 
Jan. 18, 2021, 7 p.m. 0.4 ppb (1) 0.1 ppb (1) -0.8 ppb (0) 0.0 ppb (0) -1.0 ppb (0) 0.0 ppb (0) 39.0 ppb (37) 0.09 ppb (2) 2.0 μg/m3 (2) -1.0 μg/m3 (0) 37.0
 
Jan. 18, 2021, 6 p.m. 0.4 ppb (1) 0.1 ppb (1) -0.8 ppb (0) 0.0 ppb (0) -1.0 ppb (0) 0.0 ppb (0) 38.0 ppb (36) 0.09 ppb (2) 4.0 μg/m3 (4) 0.0 μg/m3 (0) 36.0
 
Jan. 18, 2021, 5 p.m. 0.8 ppb (1) 0.2 ppb (1) -0.5 ppb (0) 1.0 ppb (1) -0.7 ppb (0) 0.0 ppb (0) 38.0 ppb (36) 0.09 ppb (2) 3.0 μg/m3 (3) -1.0 μg/m3 (0) 36.0
 
Jan. 18, 2021, 4 p.m. 0.7 ppb (1) 0.1 ppb (1) -0.5 ppb (0) 1.0 ppb (1) -0.7 ppb (0) 0.0 ppb (0) 35.0 ppb (33) 0.09 ppb (2) N/A -4.0 μg/m3 (0) 33.0
 
Jan. 18, 2021, 3 p.m. 0.7 ppb (1) 0.0 ppb (0) -0.6 ppb (0) 1.0 ppb (1) -0.7 ppb (0) 0.0 ppb (0) 37.0 ppb (35) 0.08 ppb (2) -3.0 μg/m3 (0) -3.0 μg/m3 (0) 35.0
 
Jan. 18, 2021, 2 p.m. 0.8 ppb (1) 0.0 ppb (0) -0.5 ppb (0) 1.0 ppb (1) -0.5 ppb (0) 0.0 ppb (0) 37.0 ppb (35) 0.08 ppb (2) -4.0 μg/m3 (0) -4.0 μg/m3 (0) 35.0
 
Jan. 18, 2021, 1 p.m. 0.5 ppb (1) -0.1 ppb (0) -0.7 ppb (0) 1.0 ppb (1) -0.7 ppb (0) 0.0 ppb (0) 34.0 ppb (32) 0.08 ppb (2) N/A N/A 32.0
 
Jan. 18, 2021, noon 0.4 ppb (1) -0.1 ppb (0) -0.9 ppb (0) 0.0 ppb (0) -0.8 ppb (0) 0.0 ppb (0) 34.0 ppb (32) 0.08 ppb (2) -4.0 μg/m3 (0) -4.0 μg/m3 (0) 32.0
 
Jan. 18, 2021, 11 a.m. 0.3 ppb (1) -0.1 ppb (0) -1.0 ppb (0) 0.0 ppb (0) -0.9 ppb (0) 0.0 ppb (0) 36.0 ppb (34) 0.08 ppb (2) 1.0 μg/m3 (1) -1.0 μg/m3 (0) 34.0
 
Jan. 18, 2021, 10 a.m. 0.5 ppb (1) -0.1 ppb (0) -0.7 ppb (0) 1.0 ppb (1) -0.7 ppb (0) 0.0 ppb (0) 36.0 ppb (34) 0.09 ppb (2) 0.0 μg/m3 (0) -2.0 μg/m3 (0) 34.0
 
Jan. 18, 2021, 9 a.m. 0.2 ppb (1) -0.1 ppb (0) -0.9 ppb (0) 0.0 ppb (0) -0.9 ppb (0) 0.0 ppb (0) 41.0 ppb (38) 0.1 ppb (2) 1.0 μg/m3 (1) -1.0 μg/m3 (0) 38.0
 
Jan. 18, 2021, 8 a.m. 0.3 ppb (1) -0.1 ppb (0) -0.7 ppb (0) 0.0 ppb (0) -0.7 ppb (0) 0.0 ppb (0) 42.0 ppb (39) 0.12 ppb (2) 5.0 μg/m3 (5) 1.0 μg/m3 (5) 39.0
 
Jan. 18, 2021, 7 a.m. 1.0 ppb (1) -0.1 ppb (0) -0.2 ppb (0) 1.0 ppb (1) -0.2 ppb (0) 0.0 ppb (0) 35.0 ppb (33) 0.07 ppb (2) 8.0 μg/m3 (8) 0.0 μg/m3 (0) 33.0
 
Jan. 18, 2021, 6 a.m. 0.6 ppb (1) -0.1 ppb (0) -0.5 ppb (0) 1.0 ppb (1) -0.5 ppb (0) 0.0 ppb (0) 36.0 ppb (34) 0.07 ppb (2) 4.0 μg/m3 (4) 1.0 μg/m3 (5) 34.0
 
Jan. 18, 2021, 5 a.m. 0.4 ppb (1) -0.1 ppb (0) -0.7 ppb (0) 1.0 ppb (1) -0.7 ppb (0) 0.0 ppb (0) 40.0 ppb (38) 0.08 ppb (2) 6.0 μg/m3 (6) 4.0 μg/m3 (17) 38.0
 
Jan. 18, 2021, 4 a.m. 0.5 ppb (1) -0.1 ppb (0) -0.7 ppb (0) 1.0 ppb (1) -0.7 ppb (0) 0.0 ppb (0) 40.0 ppb (38) 0.08 ppb (2) 4.0 μg/m3 (4) 2.0 μg/m3 (9) 38.0
 
Jan. 18, 2021, 3 a.m. 0.6 ppb (1) -0.1 ppb (0) -0.6 ppb (0) 1.0 ppb (1) -0.6 ppb (0) 0.0 ppb (0) 40.0 ppb (38) 0.08 ppb (2) 5.0 μg/m3 (5) -1.0 μg/m3 (0) 38.0
 
Jan. 18, 2021, 2 a.m. 0.6 ppb (1) -0.1 ppb (0) -0.6 ppb (0) 1.0 ppb (1) -0.6 ppb (0) 0.0 ppb (0) 41.0 ppb (38) 0.08 ppb (2) 3.0 μg/m3 (3) -4.0 μg/m3 (0) 38.0
 
Jan. 18, 2021, 1 a.m. 0.7 ppb (1) 0.0 ppb (0) -0.5 ppb (0) 1.0 ppb (1) -0.6 ppb (0) 0.0 ppb (0) 42.0 ppb (39) 0.08 ppb (2) 4.0 μg/m3 (4) -3.0 μg/m3 (0) 39.0
 
Jan. 18, 2021, midnight 0.6 ppb (1) -0.1 ppb (0) -0.6 ppb (0) 1.0 ppb (1) -0.5 ppb (0) 0.0 ppb (0) 42.0 ppb (39) 0.08 ppb (2) 3.0 μg/m3 (3) 0.0 μg/m3 (0) 39.0
 
Jan. 17, 2021, 11 p.m. 0.6 ppb (1) -0.1 ppb (0) -0.6 ppb (0) 1.0 ppb (1) -0.6 ppb (0) 0.0 ppb (0) 42.0 ppb (39) 0.08 ppb (2) 5.0 μg/m3 (5) 0.0 μg/m3 (0) 39.0
 
Jan. 17, 2021, 10 p.m. 0.6 ppb (1) 0.0 ppb (0) -0.6 ppb (0) 1.0 ppb (1) -0.6 ppb (0) 0.0 ppb (0) 42.0 ppb (39) 0.09 ppb (2) 6.0 μg/m3 (6) 0.0 μg/m3 (0) 39.0
 
Jan. 17, 2021, 9 p.m. 0.6 ppb (1) 0.0 ppb (0) -0.6 ppb (0) 1.0 ppb (1) -0.7 ppb (0) 0.0 ppb (0) 43.0 ppb (40) 0.09 ppb (2) 7.0 μg/m3 (7) 2.0 μg/m3 (9) 40.0
 
Jan. 17, 2021, 8 p.m. 0.8 ppb (1) 0.0 ppb (0) -0.4 ppb (0) 1.0 ppb (1) -0.4 ppb (0) 0.0 ppb (0) 42.0 ppb (39) 0.09 ppb (2) 3.0 μg/m3 (3) 0.0 μg/m3 (0) 39.0
 
Jan. 17, 2021, 7 p.m. 0.8 ppb (1) 0.1 ppb (1) -0.4 ppb (0) 1.0 ppb (1) -0.5 ppb (0) 0.0 ppb (0) 42.0 ppb (39) 0.09 ppb (2) 5.0 μg/m3 (5) 0.0 μg/m3 (0) 39.0
 
Jan. 17, 2021, 6 p.m. 0.6 ppb (1) 0.0 ppb (0) -0.5 ppb (0) 1.0 ppb (1) -0.6 ppb (0) 0.0 ppb (0) 42.0 ppb (39) 0.09 ppb (2) 5.0 μg/m3 (5) -1.0 μg/m3 (0) 39.0
 
Jan. 17, 2021, 5 p.m. 0.9 ppb (1) 0.1 ppb (1) -0.3 ppb (0) 1.0 ppb (1) -0.4 ppb (0) 0.0 ppb (0) 41.0 ppb (38) 0.09 ppb (2) 7.0 μg/m3 (7) 0.0 μg/m3 (0) 38.0
 
Jan. 17, 2021, 4 p.m. 0.7 ppb (1) 0.1 ppb (1) -0.4 ppb (0) 1.0 ppb (1) -0.5 ppb (0) 0.0 ppb (0) 40.0 ppb (38) 0.09 ppb (2) 6.0 μg/m3 (6) 2.0 μg/m3 (9) 38.0
 
Jan. 17, 2021, 3 p.m. 0.9 ppb (1) 0.0 ppb (0) -0.3 ppb (0) 1.0 ppb (1) -0.4 ppb (0) 0.0 ppb (0) 39.0 ppb (37) 0.09 ppb (2) 2.0 μg/m3 (2) 3.0 μg/m3 (13) 37.0
 
Jan. 17, 2021, 2 p.m. 1.2 ppb (2) 0.0 ppb (0) 0.1 ppb (1) 1.0 ppb (1) 0.0 ppb (0) 0.0 ppb (0) 37.0 ppb (35) 0.09 ppb (2) 3.0 μg/m3 (3) 3.0 μg/m3 (13) 35.0
 
Jan. 17, 2021, 1 p.m. 1.5 ppb (2) 0.0 ppb (0) 0.3 ppb (1) 1.0 ppb (1) 0.3 ppb (1) 0.0 ppb (0) 35.0 ppb (33) 0.09 ppb (2) 4.0 μg/m3 (4) 0.0 μg/m3 (0) 33.0
 
Jan. 17, 2021, noon 1.0 ppb (1) 0.0 ppb (0) -0.2 ppb (0) 1.0 ppb (1) -0.2 ppb (0) 0.0 ppb (0) 34.0 ppb (32) 0.08 ppb (2) 4.0 μg/m3 (4) -1.0 μg/m3 (0) 32.0
 
Jan. 17, 2021, 11 a.m. 0.7 ppb (1) -0.1 ppb (0) -0.4 ppb (0) 1.0 ppb (1) -0.4 ppb (0) 0.0 ppb (0) 35.0 ppb (33) 0.08 ppb (2) 3.0 μg/m3 (3) -1.0 μg/m3 (0) 33.0
 
Jan. 17, 2021, 10 a.m. 0.7 ppb (1) -0.1 ppb (0) -0.5 ppb (0) 1.0 ppb (1) -0.5 ppb (0) 0.0 ppb (0) 36.0 ppb (34) 0.08 ppb (2) 4.0 μg/m3 (4) -2.0 μg/m3 (0) 34.0
 
Jan. 17, 2021, 9 a.m. 0.7 ppb (1) -0.1 ppb (0) -0.5 ppb (0) 1.0 ppb (1) -0.5 ppb (0) 0.0 ppb (0) 34.0 ppb (32) 0.07 ppb (2) 1.0 μg/m3 (1) 0.0 μg/m3 (0) 32.0
 
Jan. 17, 2021, 8 a.m. 0.6 ppb (1) -0.1 ppb (0) -0.6 ppb (0) 1.0 ppb (1) -0.6 ppb (0) 0.0 ppb (0) 35.0 ppb (33) 0.07 ppb (2) 3.0 μg/m3 (3) 3.0 μg/m3 (13) 33.0
 
Jan. 17, 2021, 7 a.m. 0.5 ppb (1) 0.0 ppb (0) -0.8 ppb (0) 0.0 ppb (0) -0.8 ppb (0) 0.0 ppb (0) 37.0 ppb (35) 0.07 ppb (2) 2.0 μg/m3 (2) 2.0 μg/m3 (9) 35.0
 
Jan. 17, 2021, 6 a.m. 0.4 ppb (1) -0.1 ppb (0) -0.8 ppb (0) 1.0 ppb (1) -0.8 ppb (0) 0.0 ppb (0) 37.0 ppb (35) 0.08 ppb (2) 3.0 μg/m3 (3) 0.0 μg/m3 (0) 35.0
 
Jan. 17, 2021, 5 a.m. 0.8 ppb (1) -0.1 ppb (0) -0.4 ppb (0) 1.0 ppb (1) -0.3 ppb (0) 0.0 ppb (0) 37.0 ppb (35) 0.08 ppb (2) 3.0 μg/m3 (3) 0.0 μg/m3 (0) 35.0
 
Jan. 17, 2021, 4 a.m. 0.6 ppb (1) -0.1 ppb (0) -0.6 ppb (0) 1.0 ppb (1) -0.7 ppb (0) 0.0 ppb (0) 38.0 ppb (36) 0.08 ppb (2) 6.0 μg/m3 (6) 0.0 μg/m3 (0) 36.0
 
Jan. 17, 2021, 3 a.m. 0.7 ppb (1) -0.1 ppb (0) -0.5 ppb (0) 1.0 ppb (1) -0.5 ppb (0) 0.0 ppb (0) 37.0 ppb (35) 0.08 ppb (2) 3.0 μg/m3 (3) 1.0 μg/m3 (5) 35.0
 
Jan. 17, 2021, 2 a.m. 0.9 ppb (1) -0.1 ppb (0) -0.3 ppb (0) 1.0 ppb (1) -0.3 ppb (0) 0.0 ppb (0) 37.0 ppb (35) 0.07 ppb (2) 3.0 μg/m3 (3) 1.0 μg/m3 (5) 35.0
 
Jan. 17, 2021, 1 a.m. 1.3 ppb (2) -0.1 ppb (0) 0.2 ppb (1) 1.0 ppb (1) 0.2 ppb (1) 0.0 ppb (0) 36.0 ppb (34) 0.07 ppb (2) 4.0 μg/m3 (4) 0.0 μg/m3 (0) 34.0
 
Jan. 17, 2021, midnight 1.4 ppb (2) -0.1 ppb (0) 0.3 ppb (1) 1.0 ppb (1) 0.3 ppb (1) 0.0 ppb (0) 38.0 ppb (36) 0.07 ppb (2) 1.0 μg/m3 (1) N/A 36.0
 
Jan. 16, 2021, 11 p.m. 0.9 ppb (1) 0.0 ppb (0) -0.2 ppb (0) 1.0 ppb (1) -0.3 ppb (0) 0.0 ppb (0) 40.0 ppb (38) 0.08 ppb (2) -4.0 μg/m3 (0) N/A 38.0
 
Jan. 16, 2021, 10 p.m. 0.5 ppb (1) 0.0 ppb (0) -0.7 ppb (0) 0.0 ppb (0) -0.7 ppb (0) 0.0 ppb (0) 41.0 ppb (38) 0.07 ppb (2) N/A N/A 38.0
 
Jan. 16, 2021, 9 p.m. 0.4 ppb (1) 0.0 ppb (0) -0.8 ppb (0) 0.0 ppb (0) -0.9 ppb (0) 0.0 ppb (0) 41.0 ppb (38) 0.07 ppb (2) -2.0 μg/m3 (0) N/A 38.0
 
Jan. 16, 2021, 8 p.m. 0.4 ppb (1) 0.0 ppb (0) -0.7 ppb (0) 0.0 ppb (0) -0.8 ppb (0) 0.0 ppb (0) 42.0 ppb (39) 0.07 ppb (2) 7.0 μg/m3 (7) 0.0 μg/m3 (0) 39.0
 
Jan. 16, 2021, 7 p.m. 0.4 ppb (1) 0.0 ppb (0) -0.8 ppb (0) 0.0 ppb (0) -0.9 ppb (0) 0.0 ppb (0) 42.0 ppb (39) 0.08 ppb (2) 8.0 μg/m3 (8) -2.0 μg/m3 (0) 39.0
 
Jan. 16, 2021, 6 p.m. 0.4 ppb (1) 0.0 ppb (0) -0.8 ppb (0) 0.0 ppb (0) -0.9 ppb (0) 0.0 ppb (0) 40.0 ppb (38) 0.07 ppb (2) 2.0 μg/m3 (2) 1.0 μg/m3 (5) 38.0
 
Jan. 16, 2021, 5 p.m. 0.3 ppb (1) 0.0 ppb (0) -1.0 ppb (0) 0.0 ppb (0) -1.0 ppb (0) 0.0 ppb (0) 41.0 ppb (38) 0.07 ppb (2) 2.0 μg/m3 (2) 4.0 μg/m3 (17) 38.0
 
Jan. 16, 2021, 4 p.m. 0.3 ppb (1) 0.0 ppb (0) -0.9 ppb (0) 0.0 ppb (0) -1.0 ppb (0) 0.0 ppb (0) 38.0 ppb (36) 0.06 ppb (2) -2.0 μg/m3 (0) -2.0 μg/m3 (0) 36.0
 
Jan. 16, 2021, 3 p.m. 0.4 ppb (1) 0.0 ppb (0) -0.8 ppb (0) 0.0 ppb (0) -0.9 ppb (0) 0.0 ppb (0) 39.0 ppb (37) 0.06 ppb (2) -4.0 μg/m3 (0) -4.0 μg/m3 (0) 37.0
 
Jan. 16, 2021, 2 p.m. 0.7 ppb (1) -0.1 ppb (0) -0.5 ppb (0) 1.0 ppb (1) -0.5 ppb (0) 0.0 ppb (0) 37.0 ppb (35) 0.06 ppb (2) -2.0 μg/m3 (0) -2.0 μg/m3 (0) 35.0
 
Jan. 16, 2021, 1 p.m. 0.7 ppb (1) 0.0 ppb (0) -0.6 ppb (0) 1.0 ppb (1) -0.6 ppb (0) 0.0 ppb (0) 37.0 ppb (35) 0.06 ppb (2) -4.0 μg/m3 (0) -4.0 μg/m3 (0) 35.0
 
Jan. 16, 2021, noon 0.5 ppb (1) 0.0 ppb (0) -0.8 ppb (0) 1.0 ppb (1) -0.8 ppb (0) 0.0 ppb (0) 38.0 ppb (36) 0.06 ppb (2) 0.0 μg/m3 (0) -3.0 μg/m3 (0) 36.0
 
Jan. 16, 2021, 11 a.m. 0.4 ppb (1) -0.1 ppb (0) -0.8 ppb (0) 0.0 ppb (0) -0.8 ppb (0) 0.0 ppb (0) 39.0 ppb (37) 0.06 ppb (2) 6.0 μg/m3 (6) 0.0 μg/m3 (0) 37.0
 
Jan. 16, 2021, 10 a.m. 1.1 ppb (2) -0.1 ppb (0) 0.0 ppb (0) 1.0 ppb (1) 0.0 ppb (0) 0.0 ppb (0) 39.0 ppb (37) 0.07 ppb (2) 7.0 μg/m3 (7) 1.0 μg/m3 (5) 37.0
 
Jan. 16, 2021, 9 a.m. 1.1 ppb (2) -0.1 ppb (0) 0.1 ppb (1) 1.0 ppb (1) 0.1 ppb (1) 0.0 ppb (0) 34.0 ppb (32) 0.07 ppb (2) 1.0 μg/m3 (1) 1.0 μg/m3 (5) 32.0
 
Jan. 16, 2021, 8 a.m. 0.4 ppb (1) -0.1 ppb (0) -0.9 ppb (0) 0.0 ppb (0) -0.9 ppb (0) 0.0 ppb (0) 37.0 ppb (35) 0.07 ppb (2) 4.0 μg/m3 (4) 1.0 μg/m3 (5) 35.0
 
Jan. 16, 2021, 7 a.m. 0.5 ppb (1) -0.1 ppb (0) -0.8 ppb (0) 1.0 ppb (1) -0.7 ppb (0) 0.0 ppb (0) 40.0 ppb (38) 0.07 ppb (2) 6.0 μg/m3 (6) 1.0 μg/m3 (5) 38.0
 
Jan. 16, 2021, 6 a.m. 0.5 ppb (1) -0.1 ppb (0) -0.7 ppb (0) 1.0 ppb (1) -0.7 ppb (0) 0.0 ppb (0) 41.0 ppb (38) 0.07 ppb (2) 5.0 μg/m3 (5) 3.0 μg/m3 (13) 38.0
 
Jan. 16, 2021, 5 a.m. 1.3 ppb (2) -0.1 ppb (0) 0.1 ppb (1) 1.0 ppb (1) 0.1 ppb (1) 0.0 ppb (0) 40.0 ppb (38) 0.08 ppb (2) 5.0 μg/m3 (5) 4.0 μg/m3 (17) 38.0
 
Jan. 16, 2021, 4 a.m. 1.9 ppb (2) -0.1 ppb (0) 0.8 ppb (1) 2.0 ppb (2) 0.8 ppb (1) 0.0 ppb (0) 39.0 ppb (37) 0.08 ppb (2) 0.0 μg/m3 (0) -2.0 μg/m3 (0) 37.0
 
Jan. 16, 2021, 3 a.m. 1.1 ppb (2) -0.1 ppb (0) -0.1 ppb (0) 1.0 ppb (1) -0.1 ppb (0) 0.0 ppb (0) 40.0 ppb (38) 0.08 ppb (2) 2.0 μg/m3 (2) -1.0 μg/m3 (0) 38.0
 
Jan. 16, 2021, 2 a.m. 0.8 ppb (1) -0.1 ppb (0) -0.4 ppb (0) 1.0 ppb (1) -0.4 ppb (0) 0.0 ppb (0) 42.0 ppb (39) 0.08 ppb (2) 5.0 μg/m3 (5) 3.0 μg/m3 (13) 39.0
 
Jan. 16, 2021, 1 a.m. 0.6 ppb (1) -0.1 ppb (0) -0.6 ppb (0) 1.0 ppb (1) -0.6 ppb (0) 0.0 ppb (0) 43.0 ppb (40) 0.08 ppb (2) 3.0 μg/m3 (3) 4.0 μg/m3 (17) 40.0
 
Jan. 16, 2021, midnight 0.5 ppb (1) -0.1 ppb (0) -0.7 ppb (0) 1.0 ppb (1) -0.7 ppb (0) 0.0 ppb (0) 43.0 ppb (40) 0.08 ppb (2) 2.0 μg/m3 (2) 1.0 μg/m3 (5) 40.0
 
Jan. 15, 2021, 11 p.m. 0.6 ppb (1) 0.0 ppb (0) -0.6 ppb (0) 1.0 ppb (1) -0.6 ppb (0) 0.0 ppb (0) 43.0 ppb (40) 0.08 ppb (2) 7.0 μg/m3 (7) -2.0 μg/m3 (0) 40.0
 
Jan. 15, 2021, 10 p.m. 0.4 ppb (1) 0.0 ppb (0) -0.8 ppb (0) 0.0 ppb (0) -0.8 ppb (0) 0.0 ppb (0) 44.0 ppb (41) 0.08 ppb (2) 9.0 μg/m3 (9) -4.0 μg/m3 (0) 41.0
 
Jan. 15, 2021, 9 p.m. 0.3 ppb (1) 0.0 ppb (0) -0.9 ppb (0) 0.0 ppb (0) -1.0 ppb (0) 0.0 ppb (0) 45.0 ppb (42) 0.09 ppb (2) 16.0 μg/m3 (15) 0.0 μg/m3 (0) 42.0
 
Jan. 15, 2021, 8 p.m. 0.3 ppb (1) 0.0 ppb (0) -0.9 ppb (0) 0.0 ppb (0) -1.0 ppb (0) 0.0 ppb (0) 45.0 ppb (42) 0.09 ppb (2) 11.0 μg/m3 (11) 7.0 μg/m3 (30) 42.0
 
Jan. 15, 2021, 7 p.m. 0.4 ppb (1) 0.0 ppb (0) -0.8 ppb (0) 0.0 ppb (0) -0.9 ppb (0) 0.0 ppb (0) 44.0 ppb (41) 0.1 ppb (2) 14.0 μg/m3 (13) 14.0 μg/m3 (55) 55.0
 
Jan. 15, 2021, 6 p.m. 0.5 ppb (1) 0.1 ppb (1) -0.7 ppb (0) 0.0 ppb (0) -0.9 ppb (0) 0.0 ppb (0) 45.0 ppb (42) 0.11 ppb (2) 21.0 μg/m3 (20) 11.0 μg/m3 (46) 46.0
 
Jan. 15, 2021, 5 p.m. 0.5 ppb (1) 0.0 ppb (0) -0.7 ppb (0) 0.0 ppb (0) -0.9 ppb (0) 0.0 ppb (0) 44.0 ppb (41) 0.11 ppb (2) 26.0 μg/m3 (25) 12.0 μg/m3 (50) 50.0
 
Jan. 15, 2021, 4 p.m. 0.6 ppb (1) 0.1 ppb (1) -0.6 ppb (0) 1.0 ppb (1) -0.7 ppb (0) 0.0 ppb (0) 43.0 ppb (40) 0.11 ppb (2) 10.0 μg/m3 (10) 1.0 μg/m3 (5) 40.0
 
Jan. 15, 2021, 3 p.m. 0.8 ppb (1) 0.1 ppb (1) -0.4 ppb (0) 1.0 ppb (1) -0.5 ppb (0) 0.0 ppb (0) 42.0 ppb (39) 0.11 ppb (2) 9.0 μg/m3 (9) -2.0 μg/m3 (0) 39.0
 
Jan. 15, 2021, 2 p.m. 0.6 ppb (1) 0.0 ppb (0) -0.6 ppb (0) 1.0 ppb (1) -0.6 ppb (0) 0.0 ppb (0) 41.0 ppb (38) 0.1 ppb (2) 6.0 μg/m3 (6) 0.0 μg/m3 (0) 38.0
 
Jan. 15, 2021, 1 p.m. 0.4 ppb (1) -0.1 ppb (0) -0.8 ppb (0) 0.0 ppb (0) -0.8 ppb (0) 0.0 ppb (0) 40.0 ppb (38) 0.1 ppb (2) 4.0 μg/m3 (4) 0.0 μg/m3 (0) 38.0
 
Jan. 15, 2021, noon 0.4 ppb (1) -0.1 ppb (0) -0.9 ppb (0) 0.0 ppb (0) -0.9 ppb (0) 0.0 ppb (0) 40.0 ppb (38) 0.1 ppb (2) 6.0 μg/m3 (6) -1.0 μg/m3 (0) 38.0
 
Jan. 15, 2021, 11 a.m. 0.3 ppb (1) -0.1 ppb (0) -1.0 ppb (0) 0.0 ppb (0) -1.0 ppb (0) 0.0 ppb (0) 41.0 ppb (38) 0.1 ppb (2) 6.0 μg/m3 (6) -1.0 μg/m3 (0) 38.0
 
Jan. 15, 2021, 10 a.m. 0.3 ppb (1) -0.1 ppb (0) -0.9 ppb (0) 0.0 ppb (0) -0.9 ppb (0) 0.0 ppb (0) 41.0 ppb (38) 0.12 ppb (2) 2.0 μg/m3 (2) -1.0 μg/m3 (0) 38.0
 
Jan. 15, 2021, 9 a.m. 0.3 ppb (1) -0.1 ppb (0) -0.9 ppb (0) 0.0 ppb (0) -0.9 ppb (0) 0.0 ppb (0) 41.0 ppb (38) 0.11 ppb (2) 1.0 μg/m3 (1) -1.0 μg/m3 (0) 38.0
 
Jan. 15, 2021, 8 a.m. 0.3 ppb (1) 0.0 ppb (0) -0.9 ppb (0) 0.0 ppb (0) -0.9 ppb (0) 0.0 ppb (0) 40.0 ppb (38) 0.14 ppb (2) 3.0 μg/m3 (3) 0.0 μg/m3 (0) 38.0
 
Jan. 15, 2021, 7 a.m. 0.3 ppb (1) -0.1 ppb (0) -0.9 ppb (0) 0.0 ppb (0) -0.9 ppb (0) 0.0 ppb (0) 40.0 ppb (38) 0.11 ppb (2) 5.0 μg/m3 (5) 0.0 μg/m3 (0) 38.0
 
Jan. 15, 2021, 6 a.m. 0.3 ppb (1) -0.1 ppb (0) -0.9 ppb (0) 0.0 ppb (0) -0.9 ppb (0) 0.0 ppb (0) 40.0 ppb (38) 0.1 ppb (2) 4.0 μg/m3 (4) -2.0 μg/m3 (0) 38.0
 
Jan. 15, 2021, 5 a.m. 0.3 ppb (1) -0.1 ppb (0) -1.0 ppb (0) 0.0 ppb (0) -1.0 ppb (0) 0.0 ppb (0) 40.0 ppb (38) 0.1 ppb (2) 2.0 μg/m3 (2) -3.0 μg/m3 (0) 38.0
 
Jan. 15, 2021, 4 a.m. 0.3 ppb (1) -0.1 ppb (0) -1.0 ppb (0) 0.0 ppb (0) -1.0 ppb (0) 0.0 ppb (0) 39.0 ppb (37) 0.1 ppb (2) 5.0 μg/m3 (5) 0.0 μg/m3 (0) 37.0
 
Jan. 15, 2021, 3 a.m. 0.3 ppb (1) -0.1 ppb (0) -1.0 ppb (0) 0.0 ppb (0) -1.0 ppb (0) 0.0 ppb (0) 40.0 ppb (38) 0.1 ppb (2) 5.0 μg/m3 (5) 1.0 μg/m3 (5) 38.0
 
Jan. 15, 2021, 2 a.m. 0.3 ppb (1) -0.1 ppb (0) -1.0 ppb (0) 0.0 ppb (0) -1.0 ppb (0) 0.0 ppb (0) 40.0 ppb (38) 0.11 ppb (2) 6.0 μg/m3 (6) 0.0 μg/m3 (0) 38.0
 
Jan. 15, 2021, 1 a.m. 0.3 ppb (1) -0.1 ppb (0) -1.0 ppb (0) 0.0 ppb (0) -1.0 ppb (0) 0.0 ppb (0) 41.0 ppb (38) 0.1 ppb (2) 5.0 μg/m3 (5) -1.0 μg/m3 (0) 38.0
 
Jan. 15, 2021, midnight 0.4 ppb (1) 0.0 ppb (0) -0.9 ppb (0) 0.0 ppb (0) -0.9 ppb (0) 0.0 ppb (0) 41.0 ppb (38) 0.11 ppb (2) 6.0 μg/m3 (6) -1.0 μg/m3 (0) 38.0
 
Jan. 14, 2021, 11 p.m. 0.3 ppb (1) 0.0 ppb (0) -0.9 ppb (0) 0.0 ppb (0) -1.0 ppb (0) 0.0 ppb (0) 41.0 ppb (38) 0.1 ppb (2) 5.0 μg/m3 (5) 0.0 μg/m3 (0) 38.0
 
Jan. 14, 2021, 10 p.m. 0.4 ppb (1) 0.0 ppb (0) -0.9 ppb (0) 0.0 ppb (0) -1.0 ppb (0) 0.0 ppb (0) 40.0 ppb (38) 0.1 ppb (2) 5.0 μg/m3 (5) -2.0 μg/m3 (0) 38.0
 
Jan. 14, 2021, 9 p.m. 0.2 ppb (1) 0.0 ppb (0) -1.0 ppb (0) 0.0 ppb (0) -1.1 ppb (0) 0.0 ppb (0) 40.0 ppb (38) 0.11 ppb (2) 8.0 μg/m3 (8) -2.0 μg/m3 (0) 38.0
 
Jan. 14, 2021, 8 p.m. 0.3 ppb (1) 0.0 ppb (0) -0.9 ppb (0) 0.0 ppb (0) -1.0 ppb (0) 0.0 ppb (0) 40.0 ppb (38) 0.11 ppb (2) 14.0 μg/m3 (13) 0.0 μg/m3 (0) 38.0
 
Jan. 14, 2021, 7 p.m. 0.8 ppb (1) 0.2 ppb (1) -0.4 ppb (0) 1.0 ppb (1) -0.7 ppb (0) 0.0 ppb (0) 40.0 ppb (38) 0.11 ppb (2) 12.0 μg/m3 (12) -2.0 μg/m3 (0) 38.0
 
Jan. 14, 2021, 6 p.m. 0.9 ppb (1) 0.2 ppb (1) -0.4 ppb (0) 1.0 ppb (1) -0.7 ppb (0) 0.0 ppb (0) 40.0 ppb (38) 0.11 ppb (2) 8.0 μg/m3 (8) -2.0 μg/m3 (0) 38.0
 
Jan. 14, 2021, 5 p.m. 1.3 ppb (2) 0.5 ppb (1) 0.0 ppb (0) 1.0 ppb (1) -0.5 ppb (0) 0.0 ppb (0) 40.0 ppb (38) 0.11 ppb (2) 11.0 μg/m3 (11) 0.0 μg/m3 (0) 38.0
 
Jan. 14, 2021, 4 p.m. 3.6 ppb (4) 1.3 ppb (2) 2.4 ppb (3) 2.0 ppb (2) 1.2 ppb (2) 0.0 ppb (0) 38.0 ppb (36) 0.12 ppb (2) 13.0 μg/m3 (13) 1.0 μg/m3 (5) 36.0
 
Jan. 14, 2021, 3 p.m. 3.5 ppb (4) 1.2 ppb (2) 2.1 ppb (2) 2.0 ppb (2) 0.9 ppb (1) 0.0 ppb (0) 38.0 ppb (36) 0.11 ppb (2) 11.0 μg/m3 (11) 1.0 μg/m3 (5) 36.0
 
Jan. 14, 2021, 2 p.m. 1.8 ppb (2) 0.4 ppb (1) 0.4 ppb (1) 1.0 ppb (1) 0.0 ppb (0) 0.0 ppb (0) 39.0 ppb (37) 0.1 ppb (2) 6.0 μg/m3 (6) 3.0 μg/m3 (13) 37.0
 
Jan. 14, 2021, 1 p.m. 1.1 ppb (2) 0.2 ppb (1) -0.1 ppb (0) 1.0 ppb (1) -0.4 ppb (0) 0.0 ppb (0) 39.0 ppb (37) 0.1 ppb (2) 5.0 μg/m3 (5) 3.0 μg/m3 (13) 37.0
 
Jan. 14, 2021, noon 0.7 ppb (1) 0.1 ppb (1) -0.5 ppb (0) 1.0 ppb (1) -0.7 ppb (0) 0.0 ppb (0) 40.0 ppb (38) 0.1 ppb (2) 6.0 μg/m3 (6) 1.0 μg/m3 (5) 38.0
 
Jan. 14, 2021, 11 a.m. 0.4 ppb (1) -0.1 ppb (0) -0.9 ppb (0) 0.0 ppb (0) -0.9 ppb (0) 0.0 ppb (0) 40.0 ppb (38) 0.1 ppb (2) 4.0 μg/m3 (4) -1.0 μg/m3 (0) 38.0
 
Jan. 14, 2021, 10 a.m. 0.3 ppb (1) 0.0 ppb (0) -0.9 ppb (0) 0.0 ppb (0) -1.0 ppb (0) 0.0 ppb (0) 41.0 ppb (38) 0.1 ppb (2) 6.0 μg/m3 (6) -2.0 μg/m3 (0) 38.0
 
Jan. 14, 2021, 9 a.m. 0.3 ppb (1) 0.0 ppb (0) -0.9 ppb (0) 0.0 ppb (0) -1.0 ppb (0) 0.0 ppb (0) 42.0 ppb (39) 0.1 ppb (2) 5.0 μg/m3 (5) N/A 39.0
 
Jan. 14, 2021, 8 a.m. 0.3 ppb (1) -0.1 ppb (0) -1.0 ppb (0) 0.0 ppb (0) -1.0 ppb (0) 0.0 ppb (0) 43.0 ppb (40) 0.1 ppb (2) 0.0 μg/m3 (0) N/A 40.0
 
Jan. 14, 2021, 7 a.m. 0.2 ppb (1) -0.1 ppb (0) -1.1 ppb (0) 0.0 ppb (0) -1.1 ppb (0) 0.0 ppb (0) 44.0 ppb (41) 0.09 ppb (2) 6.0 μg/m3 (6) -4.0 μg/m3 (0) 41.0
 
Jan. 14, 2021, 6 a.m. 0.5 ppb (1) 0.0 ppb (0) -0.8 ppb (0) 0.0 ppb (0) -0.9 ppb (0) 0.0 ppb (0) 47.0 ppb (44) 0.09 ppb (2) 11.0 μg/m3 (11) 3.0 μg/m3 (13) 44.0
 
Jan. 14, 2021, 5 a.m. 0.2 ppb (1) -0.1 ppb (0) -1.1 ppb (0) 0.0 ppb (0) -1.0 ppb (0) 0.0 ppb (0) 50.0 ppb (47) 0.07 ppb (2) 10.0 μg/m3 (10) 8.0 μg/m3 (34) 47.0
 
Jan. 14, 2021, 4 a.m. 0.6 ppb (1) 0.0 ppb (0) -0.6 ppb (0) 1.0 ppb (1) -0.7 ppb (0) 0.0 ppb (0) 46.0 ppb (43) 0.07 ppb (2) 72.0 μg/m3 (60) 28.0 μg/m3 (85) 85.0
 
Jan. 14, 2021, 3 a.m. 0.9 ppb (1) 0.2 ppb (1) -0.3 ppb (0) 1.0 ppb (1) -0.6 ppb (0) 1.0 ppb (2) 42.0 ppb (39) 0.07 ppb (2) N/A 24.0 μg/m3 (77) 77.0
 
Jan. 14, 2021, 2 a.m. 0.5 ppb (1) -0.1 ppb (0) -0.8 ppb (0) 1.0 ppb (1) -0.8 ppb (0) 0.0 ppb (0) 39.0 ppb (37) 0.06 ppb (2) 8.0 μg/m3 (8) 2.0 μg/m3 (9) 37.0
 
Jan. 14, 2021, 1 a.m. 0.5 ppb (1) -0.1 ppb (0) -0.8 ppb (0) 1.0 ppb (1) -0.8 ppb (0) 0.0 ppb (0) 39.0 ppb (37) 0.06 ppb (2) 7.0 μg/m3 (7) 0.0 μg/m3 (0) 37.0
 
Jan. 14, 2021, midnight 0.7 ppb (1) -0.1 ppb (0) -0.5 ppb (0) 1.0 ppb (1) -0.5 ppb (0) 0.0 ppb (0) 38.0 ppb (36) 0.05 ppb (2) 6.0 μg/m3 (6) 1.0 μg/m3 (5) 36.0
 
Jan. 13, 2021, 11 p.m. 1.0 ppb (1) 0.1 ppb (1) -0.2 ppb (0) 1.0 ppb (1) -0.4 ppb (0) 0.0 ppb (0) 38.0 ppb (36) 0.05 ppb (2) N/A 15.0 μg/m3 (58) 58.0
 
Jan. 13, 2021, 10 p.m. 0.9 ppb (1) 0.2 ppb (1) -0.3 ppb (0) 1.0 ppb (1) -0.6 ppb (0) 0.0 ppb (0) 39.0 ppb (37) 0.06 ppb (2) 61.0 μg/m3 (54) 0.0 μg/m3 (0) 54.0
 
Jan. 13, 2021, 9 p.m. 1.3 ppb (2) 0.0 ppb (0) -0.1 ppb (0) 1.0 ppb (1) -0.1 ppb (0) 0.0 ppb (0) 39.0 ppb (37) 0.06 ppb (2) 6.0 μg/m3 (6) 1.0 μg/m3 (5) 37.0
 
Jan. 13, 2021, 8 p.m. 0.6 ppb (1) 0.0 ppb (0) -0.6 ppb (0) 1.0 ppb (1) -0.7 ppb (0) 0.0 ppb (0) 40.0 ppb (38) 0.06 ppb (2) 12.0 μg/m3 (12) 2.0 μg/m3 (9) 38.0
 
Jan. 13, 2021, 7 p.m. 0.5 ppb (1) 0.0 ppb (0) -0.7 ppb (0) 0.0 ppb (0) -0.8 ppb (0) 0.0 ppb (0) 39.0 ppb (37) 0.06 ppb (2) 29.0 μg/m3 (27) 5.0 μg/m3 (21) 37.0
 
Jan. 13, 2021, 6 p.m. 0.5 ppb (1) 0.0 ppb (0) -0.7 ppb (0) 0.0 ppb (0) -0.8 ppb (0) 0.0 ppb (0) 39.0 ppb (37) 0.06 ppb (2) 59.0 μg/m3 (53) 10.0 μg/m3 (42) 53.0
 
Jan. 13, 2021, 5 p.m. 0.6 ppb (1) 0.0 ppb (0) -0.6 ppb (0) 1.0 ppb (1) -0.7 ppb (0) 0.0 ppb (0) 40.0 ppb (38) 0.07 ppb (2) 35.0 μg/m3 (33) 13.0 μg/m3 (53) 53.0
 
Jan. 13, 2021, 4 p.m. 0.5 ppb (1) 0.0 ppb (0) -0.7 ppb (0) 0.0 ppb (0) -0.8 ppb (0) 0.0 ppb (0) 42.0 ppb (39) 0.07 ppb (2) 38.0 μg/m3 (36) 16.0 μg/m3 (60) 60.0
 
Jan. 13, 2021, 3 p.m. 0.6 ppb (1) 0.0 ppb (0) -0.6 ppb (0) 1.0 ppb (1) -0.6 ppb (0) 0.0 ppb (0) 43.0 ppb (40) 0.07 ppb (2) 93.0 μg/m3 (70) 6.0 μg/m3 (25) 70.0
 
Jan. 13, 2021, 2 p.m. 1.2 ppb (2) 0.2 ppb (1) -0.1 ppb (0) 1.0 ppb (1) -0.3 ppb (0) 0.0 ppb (0) 43.0 ppb (40) 0.07 ppb (2) 16.0 μg/m3 (15) 3.0 μg/m3 (13) 40.0
 
Jan. 13, 2021, 1 p.m. 0.8 ppb (1) 0.1 ppb (1) -0.5 ppb (0) 1.0 ppb (1) -0.6 ppb (0) 0.0 ppb (0) 44.0 ppb (41) 0.08 ppb (2) 13.0 μg/m3 (13) -1.0 μg/m3 (0) 41.0
 
Jan. 13, 2021, noon 0.4 ppb (1) -0.1 ppb (0) -0.8 ppb (0) 0.0 ppb (0) -0.8 ppb (0) 0.0 ppb (0) 44.0 ppb (41) 0.07 ppb (2) 8.0 μg/m3 (8) -4.0 μg/m3 (0) 41.0
 
Jan. 13, 2021, 11 a.m. 0.3 ppb (1) -0.1 ppb (0) -0.9 ppb (0) 0.0 ppb (0) -0.9 ppb (0) 0.0 ppb (0) 44.0 ppb (41) 0.08 ppb (2) 10.0 μg/m3 (10) -3.0 μg/m3 (0) 41.0
 
Jan. 13, 2021, 10 a.m. 0.3 ppb (1) -0.1 ppb (0) -0.9 ppb (0) 0.0 ppb (0) -0.9 ppb (0) 0.0 ppb (0) 45.0 ppb (42) 0.08 ppb (2) 10.0 μg/m3 (10) 0.0 μg/m3 (0) 42.0
 
Jan. 13, 2021, 9 a.m. 0.4 ppb (1) -0.1 ppb (0) -0.9 ppb (0) 0.0 ppb (0) -0.9 ppb (0) 0.0 ppb (0) 45.0 ppb (42) 0.08 ppb (2) 6.0 μg/m3 (6) 0.0 μg/m3 (0) 42.0
 
Jan. 13, 2021, 8 a.m. 0.6 ppb (1) -0.1 ppb (0) -0.7 ppb (0) 1.0 ppb (1) -0.7 ppb (0) 0.0 ppb (0) 45.0 ppb (42) 0.09 ppb (2) 4.0 μg/m3 (4) -1.0 μg/m3 (0) 42.0
 
Jan. 13, 2021, 7 a.m. 0.4 ppb (1) -0.1 ppb (0) -0.8 ppb (0) 0.0 ppb (0) -0.8 ppb (0) 0.0 ppb (0) 45.0 ppb (42) 0.09 ppb (2) 7.0 μg/m3 (7) -1.0 μg/m3 (0) 42.0