AQSQID: 560090010

Site Name: Converse County Long-Term

Location: Douglas (Highland Loop Rd), WY

Reporting: True, Located: True

Current AQI: 29.0

Douglas (Highland Loop Rd) WY, US: 43.1, -105.5

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
April 9, 2020, 2 p.m. 1.1 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (29) 0.06 ppb (1) 5.0 μg/m3 (5) N/A 29.0
 
April 9, 2020, 1 p.m. 13.8 ppb (13) 2.9 ppb (3) N/A 11.0 ppb (10) N/A N/A 27.0 ppb (21) 0.09 ppb (1) 8.0 μg/m3 (7) N/A 21.0
 
April 9, 2020, noon 7.0 ppb (6) 1.4 ppb (1) N/A 6.0 ppb (6) N/A N/A 31.0 ppb (24) 0.07 ppb (1) 13.0 μg/m3 (12) N/A 24.0
 
April 9, 2020, 11 a.m. 1.8 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (25) 0.07 ppb (1) 8.0 μg/m3 (7) N/A 25.0
 
April 9, 2020, 10 a.m. 1.5 ppb (1) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (26) N/A 11.0 μg/m3 (10) N/A 26.0
 
April 9, 2020, 9 a.m. 3.7 ppb (3) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 35.0 ppb (27) N/A 11.0 μg/m3 (10) N/A 27.0
 
April 9, 2020, 8 a.m. 2.3 ppb (2) -0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (27) 0.08 ppb (1) 10.0 μg/m3 (9) N/A 27.0
 
April 9, 2020, 7 a.m. 2.3 ppb (2) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 38.0 ppb (29) 0.06 ppb (1) 10.0 μg/m3 (9) N/A 29.0
 
April 9, 2020, 6 a.m. 3.1 ppb (3) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (27) 0.06 ppb (1) 25.0 μg/m3 (23) N/A 27.0
 
April 9, 2020, 5 a.m. 3.3 ppb (3) -0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (28) 0.07 ppb (1) 37.0 μg/m3 (34) N/A 34.0
 
April 9, 2020, 4 a.m. 1.7 ppb (2) -0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (29) 0.07 ppb (1) 12.0 μg/m3 (11) N/A 29.0
 
April 9, 2020, 3 a.m. 1.2 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (29) 0.08 ppb (1) 7.0 μg/m3 (6) N/A 29.0
 
April 9, 2020, 2 a.m. 0.7 ppb (1) -0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (33) 0.09 ppb (1) 8.0 μg/m3 (7) N/A 33.0
 
April 9, 2020, 1 a.m. 0.8 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) 0.09 ppb (1) 7.0 μg/m3 (6) N/A 35.0
 
April 9, 2020, midnight 0.6 ppb (1) -0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) 0.08 ppb (1) 7.0 μg/m3 (6) N/A 35.0
 
April 8, 2020, 11 p.m. 0.6 ppb (1) -0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) 0.08 ppb (1) 7.0 μg/m3 (6) N/A 35.0
 
April 8, 2020, 10 p.m. 0.9 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) 0.08 ppb (1) 6.0 μg/m3 (5) N/A 35.0
 
April 8, 2020, 9 p.m. 0.9 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) 0.09 ppb (1) 8.0 μg/m3 (7) N/A 36.0
 
April 8, 2020, 8 p.m. 1.0 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) 0.1 ppb (1) 7.0 μg/m3 (6) N/A 36.0
 
April 8, 2020, 7 p.m. 0.9 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) 0.11 ppb (1) 6.0 μg/m3 (5) N/A 37.0
 
April 8, 2020, 6 p.m. 1.1 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) 0.1 ppb (1) 10.0 μg/m3 (9) N/A 35.0
 
April 8, 2020, 5 p.m. 1.3 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) 0.09 ppb (1) 13.0 μg/m3 (12) N/A 35.0
 
April 8, 2020, 4 p.m. 1.4 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) 0.08 ppb (1) 10.0 μg/m3 (9) N/A 35.0
 
April 8, 2020, 3 p.m. 1.2 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (32) 0.07 ppb (1) 15.0 μg/m3 (14) N/A 32.0
 
April 8, 2020, 2 p.m. 0.7 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (31) 0.07 ppb (1) 7.0 μg/m3 (6) N/A 31.0
 
April 8, 2020, 1 p.m. 1.0 ppb (1) -0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 36.0 ppb (28) 0.06 ppb (1) 10.0 μg/m3 (9) N/A 28.0
 
April 8, 2020, noon 2.0 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 30.0 ppb (23) 0.05 ppb (1) 3.0 μg/m3 (3) N/A 23.0
 
April 8, 2020, 11 a.m. 5.2 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 27.0 ppb (21) 0.06 ppb (1) 1.0 μg/m3 (1) N/A 21.0
 
April 8, 2020, 10 a.m. 0.5 ppb (0) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 31.0 ppb (24) N/A 1.0 μg/m3 (1) N/A 24.0
 
April 8, 2020, 9 a.m. 0.7 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 35.0 ppb (27) N/A 2.0 μg/m3 (2) N/A 27.0
 
April 8, 2020, 8 a.m. 0.4 ppb (0) -0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A 35.0 ppb (27) 0.06 ppb (1) 3.0 μg/m3 (3) N/A 27.0
 
April 8, 2020, 7 a.m. 1.3 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 35.0 ppb (27) 0.12 ppb (1) 3.0 μg/m3 (3) N/A 27.0
 
April 8, 2020, 6 a.m. 11.4 ppb (11) 4.1 ppb (4) N/A 7.0 ppb (6) N/A N/A 31.0 ppb (24) 0.1 ppb (1) 6.0 μg/m3 (5) N/A 24.0
 
April 8, 2020, 5 a.m. 3.4 ppb (3) 0.7 ppb (1) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (27) 0.11 ppb (1) 5.0 μg/m3 (5) N/A 27.0
 
April 8, 2020, 4 a.m. 1.1 ppb (1) -0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (30) 0.12 ppb (1) 0.0 μg/m3 (0) N/A 30.0
 
April 8, 2020, 3 a.m. 16.5 ppb (15) 5.9 ppb (5) N/A 11.0 ppb (10) N/A N/A 32.0 ppb (25) 0.11 ppb (1) 4.0 μg/m3 (4) N/A 25.0
 
April 8, 2020, 2 a.m. 3.8 ppb (4) 1.5 ppb (1) N/A 2.0 ppb (2) N/A N/A 41.0 ppb (32) 0.09 ppb (1) 6.0 μg/m3 (5) N/A 32.0
 
April 8, 2020, 1 a.m. 2.2 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (35) 0.11 ppb (1) 6.0 μg/m3 (5) N/A 35.0
 
April 8, 2020, midnight 3.2 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 47.0 ppb (36) 0.1 ppb (1) 7.0 μg/m3 (6) N/A 36.0
 
April 7, 2020, 11 p.m. 1.1 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) 0.09 ppb (1) 11.0 μg/m3 (10) N/A 35.0
 
April 7, 2020, 10 p.m. 0.7 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (34) 0.08 ppb (1) 10.0 μg/m3 (9) N/A 34.0
 
April 7, 2020, 9 p.m. 0.8 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (34) 0.09 ppb (1) 18.0 μg/m3 (16) N/A 34.0
 
April 7, 2020, 8 p.m. 1.1 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (33) 0.1 ppb (1) 7.0 μg/m3 (6) N/A 33.0
 
April 7, 2020, 7 p.m. 0.8 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (32) 0.1 ppb (1) 13.0 μg/m3 (12) N/A 32.0
 
April 7, 2020, 6 p.m. 0.6 ppb (1) -0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (32) 0.1 ppb (1) 9.0 μg/m3 (8) N/A 32.0
 
April 7, 2020, 5 p.m. 0.8 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (32) 0.09 ppb (1) 13.0 μg/m3 (12) N/A 32.0
 
April 7, 2020, 4 p.m. 0.8 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (32) 0.07 ppb (1) N/A N/A 32.0
 
April 7, 2020, 3 p.m. 0.8 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (32) 0.07 ppb (1) 12.0 μg/m3 (11) N/A 32.0
 
April 7, 2020, 2 p.m. 0.8 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 39.0 ppb (30) 0.06 ppb (1) 16.0 μg/m3 (15) N/A 30.0
 
April 7, 2020, 1 p.m. 0.4 ppb (0) -0.6 ppb (0) N/A 1.0 ppb (1) N/A N/A 39.0 ppb (30) 0.05 ppb (1) 26.0 μg/m3 (24) N/A 30.0
 
April 7, 2020, noon 0.5 ppb (0) -0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (31) 0.06 ppb (1) 8.0 μg/m3 (7) N/A 31.0
 
April 7, 2020, 11 a.m. 0.7 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (31) 0.06 ppb (1) 8.0 μg/m3 (7) N/A 31.0
 
April 7, 2020, 10 a.m. 0.5 ppb (0) -0.6 ppb (0) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (32) N/A 5.0 μg/m3 (5) N/A 32.0
 
April 7, 2020, 9 a.m. 0.9 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (32) N/A 4.0 μg/m3 (4) N/A 32.0
 
April 7, 2020, 8 a.m. 0.6 ppb (1) -0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (32) 0.06 ppb (1) 6.0 μg/m3 (5) N/A 32.0
 
April 7, 2020, 7 a.m. 0.6 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (34) 0.06 ppb (1) 8.0 μg/m3 (7) N/A 34.0
 
April 7, 2020, 6 a.m. 0.6 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (32) N/A 9.0 μg/m3 (8) N/A 32.0
 
April 7, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) N/A 4.0
 
April 7, 2020, 4 a.m. 0.5 ppb (0) -0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (34) 0.06 ppb (1) 6.0 μg/m3 (5) N/A 34.0
 
April 7, 2020, 3 a.m. 0.5 ppb (0) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 45.0 ppb (35) 0.06 ppb (1) 10.0 μg/m3 (9) N/A 35.0
 
April 7, 2020, 2 a.m. 0.6 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) 0.06 ppb (1) 12.0 μg/m3 (11) N/A 37.0
 
April 7, 2020, 1 a.m. 1.7 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 48.0 ppb (37) 0.07 ppb (1) 6.0 μg/m3 (5) N/A 37.0
 
April 7, 2020, midnight 1.3 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 50.0 ppb (38) 0.08 ppb (1) 9.0 μg/m3 (8) N/A 38.0
 
April 6, 2020, 11 p.m. 0.5 ppb (0) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 50.0 ppb (38) 0.07 ppb (1) 7.0 μg/m3 (6) N/A 38.0
 
April 6, 2020, 10 p.m. 0.6 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (38) 0.07 ppb (1) 6.0 μg/m3 (5) N/A 38.0
 
April 6, 2020, 9 p.m. 0.9 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) 0.07 ppb (1) 9.0 μg/m3 (8) N/A 37.0
 
April 6, 2020, 8 p.m. 0.8 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) 0.06 ppb (1) 12.0 μg/m3 (11) N/A 35.0
 
April 6, 2020, 7 p.m. 0.6 ppb (1) -0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (33) 0.06 ppb (1) 14.0 μg/m3 (13) N/A 33.0
 
April 6, 2020, 6 p.m. 1.3 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (33) 0.06 ppb (1) 15.0 μg/m3 (14) N/A 33.0
 
April 6, 2020, 5 p.m. 1.6 ppb (1) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (32) 0.06 ppb (1) 14.0 μg/m3 (13) N/A 32.0
 
April 6, 2020, 4 p.m. 3.1 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 40.0 ppb (31) 0.06 ppb (1) 6.0 μg/m3 (5) N/A 31.0
 
April 6, 2020, 3 p.m. 4.2 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A N/A 33.0 ppb (25) 0.05 ppb (1) 12.0 μg/m3 (11) N/A 25.0
 
April 6, 2020, 2 p.m. 8.8 ppb (8) 2.8 ppb (3) N/A 6.0 ppb (6) N/A N/A 31.0 ppb (24) 0.07 ppb (1) 5.0 μg/m3 (5) N/A 24.0
 
April 6, 2020, 1 p.m. 1.6 ppb (1) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (28) 0.05 ppb (1) 4.0 μg/m3 (4) N/A 28.0
 
April 6, 2020, noon 1.4 ppb (1) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (26) 0.05 ppb (1) 3.0 μg/m3 (3) N/A 26.0
 
April 6, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) N/A 4.0
 
April 6, 2020, 10 a.m. 1.5 ppb (1) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (27) N/A 3.0 μg/m3 (3) N/A 27.0
 
April 6, 2020, 9 a.m. 1.3 ppb (1) -0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (28) N/A 5.0 μg/m3 (5) N/A 28.0
 
April 6, 2020, 8 a.m. 1.9 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (27) 0.03 ppb (0) 6.0 μg/m3 (5) N/A 27.0
 
April 6, 2020, 7 a.m. 3.1 ppb (3) -0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 34.0 ppb (26) 0.04 ppb (0) 1.0 μg/m3 (1) N/A 26.0
 
April 6, 2020, 6 a.m. 1.7 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (28) 0.03 ppb (0) 2.0 μg/m3 (2) N/A 28.0
 
April 6, 2020, 5 a.m. 0.6 ppb (1) -0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 41.0 ppb (32) 0.03 ppb (0) 2.0 μg/m3 (2) N/A 32.0
 
April 6, 2020, 4 a.m. 0.7 ppb (1) -0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (34) 0.02 ppb (0) 1.0 μg/m3 (1) N/A 34.0
 
April 6, 2020, 3 a.m. 1.6 ppb (1) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (34) 0.03 ppb (0) 1.0 μg/m3 (1) N/A 34.0
 
April 6, 2020, 2 a.m. 2.3 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) 0.03 ppb (0) 5.0 μg/m3 (5) N/A 35.0
 
April 6, 2020, 1 a.m. 1.0 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 48.0 ppb (37) 0.05 ppb (1) 10.0 μg/m3 (9) N/A 37.0
 
April 6, 2020, midnight 0.7 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 51.0 ppb (39) 0.05 ppb (1) 8.0 μg/m3 (7) N/A 39.0
 
April 5, 2020, 11 p.m. 0.9 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 51.0 ppb (39) 0.06 ppb (1) 5.0 μg/m3 (5) N/A 39.0
 
April 5, 2020, 10 p.m. 0.7 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 50.0 ppb (38) 0.05 ppb (1) 9.0 μg/m3 (8) N/A 38.0
 
April 5, 2020, 9 p.m. 0.9 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (38) 0.06 ppb (1) 10.0 μg/m3 (9) N/A 38.0
 
April 5, 2020, 8 p.m. 0.7 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (38) 0.06 ppb (1) 7.0 μg/m3 (6) N/A 38.0
 
April 5, 2020, 7 p.m. 0.9 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 47.0 ppb (36) 0.06 ppb (1) 8.0 μg/m3 (7) N/A 36.0
 
April 5, 2020, 6 p.m. 2.0 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (34) 0.06 ppb (1) 12.0 μg/m3 (11) N/A 34.0
 
April 5, 2020, 5 p.m. 2.9 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (29) 0.06 ppb (1) 9.0 μg/m3 (8) N/A 29.0
 
April 5, 2020, 4 p.m. 1.7 ppb (2) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (28) 0.07 ppb (1) 6.0 μg/m3 (5) N/A 28.0
 
April 5, 2020, 3 p.m. 2.6 ppb (2) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (25) 0.05 ppb (1) 7.0 μg/m3 (6) N/A 25.0
 
April 5, 2020, 2 p.m. 2.2 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (25) 0.04 ppb (0) 5.0 μg/m3 (5) N/A 25.0
 
April 5, 2020, 1 p.m. 2.5 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 33.0 ppb (25) 0.04 ppb (0) 4.0 μg/m3 (4) N/A 25.0
 
April 5, 2020, noon 4.0 ppb (4) -0.3 ppb (0) N/A 4.0 ppb (4) N/A N/A 32.0 ppb (25) 0.04 ppb (0) 4.0 μg/m3 (4) N/A 25.0
 
April 5, 2020, 11 a.m. 3.1 ppb (3) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (25) 0.06 ppb (1) 4.0 μg/m3 (4) N/A 25.0
 
April 5, 2020, 10 a.m. 1.3 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 34.0 ppb (26) N/A 2.0 μg/m3 (2) N/A 26.0
 
April 5, 2020, 9 a.m. 0.7 ppb (1) -0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 34.0 ppb (26) N/A 0.0 μg/m3 (0) N/A 26.0
 
April 5, 2020, 8 a.m. 2.8 ppb (3) -0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 34.0 ppb (26) 0.04 ppb (0) 3.0 μg/m3 (3) N/A 26.0
 
April 5, 2020, 7 a.m. 2.8 ppb (3) -0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 34.0 ppb (26) 0.04 ppb (0) 6.0 μg/m3 (5) N/A 26.0
 
April 5, 2020, 6 a.m. 2.5 ppb (2) -0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 34.0 ppb (26) 0.04 ppb (0) 5.0 μg/m3 (5) N/A 26.0
 
April 5, 2020, 5 a.m. 1.5 ppb (1) -0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (29) 0.04 ppb (0) 7.0 μg/m3 (6) N/A 29.0
 
April 5, 2020, 4 a.m. 2.2 ppb (2) -0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 42.0 ppb (32) 0.05 ppb (1) 6.0 μg/m3 (5) N/A 32.0
 
April 5, 2020, 3 a.m. 0.5 ppb (0) -0.5 ppb (0) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (38) 0.06 ppb (1) 6.0 μg/m3 (5) N/A 38.0
 
April 5, 2020, 2 a.m. 0.9 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 50.0 ppb (38) 0.08 ppb (1) 7.0 μg/m3 (6) N/A 38.0
 
April 5, 2020, 1 a.m. 0.9 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) 0.07 ppb (1) 9.0 μg/m3 (8) N/A 35.0
 
April 5, 2020, midnight 0.9 ppb (1) -0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 49.0 ppb (38) 0.07 ppb (1) 11.0 μg/m3 (10) N/A 38.0
 
April 4, 2020, 11 p.m. 1.4 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 52.0 ppb (40) 0.07 ppb (1) 12.0 μg/m3 (11) N/A 40.0
 
April 4, 2020, 10 p.m. 1.6 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 52.0 ppb (40) 0.07 ppb (1) 13.0 μg/m3 (12) N/A 40.0
 
April 4, 2020, 9 p.m. 1.4 ppb (1) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 51.0 ppb (39) 0.08 ppb (1) 6.0 μg/m3 (5) N/A 39.0
 
April 4, 2020, 8 p.m. 1.9 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 50.0 ppb (38) 0.09 ppb (1) 7.0 μg/m3 (6) N/A 38.0
 
April 4, 2020, 7 p.m. 2.5 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A N/A 48.0 ppb (37) 0.1 ppb (1) 9.0 μg/m3 (8) N/A 37.0
 
April 4, 2020, 6 p.m. 2.7 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) 0.08 ppb (1) 5.0 μg/m3 (5) N/A 35.0
 
April 4, 2020, 5 p.m. 4.1 ppb (4) 1.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 41.0 ppb (32) 0.07 ppb (1) 7.0 μg/m3 (6) N/A 32.0
 
April 4, 2020, 4 p.m. 4.4 ppb (4) 1.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (28) 0.06 ppb (1) 5.0 μg/m3 (5) N/A 28.0
 
April 4, 2020, 3 p.m. 4.9 ppb (5) 1.8 ppb (2) N/A 3.0 ppb (3) N/A N/A 30.0 ppb (23) 0.06 ppb (1) 5.0 μg/m3 (5) N/A 23.0
 
April 4, 2020, 2 p.m. 2.6 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 31.0 ppb (24) 0.06 ppb (1) 9.0 μg/m3 (8) N/A 24.0
 
April 4, 2020, 1 p.m. 2.2 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 32.0 ppb (25) 0.05 ppb (1) 3.0 μg/m3 (3) N/A 25.0
 
April 4, 2020, noon 1.9 ppb (2) -0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (25) 0.05 ppb (1) 2.0 μg/m3 (2) N/A 25.0
 
April 4, 2020, 11 a.m. 1.5 ppb (1) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (27) 0.07 ppb (1) 6.0 μg/m3 (5) N/A 27.0
 
April 4, 2020, 10 a.m. 1.9 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 36.0 ppb (28) N/A 6.0 μg/m3 (5) N/A 28.0
 
April 4, 2020, 9 a.m. 1.9 ppb (2) -0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (27) N/A 5.0 μg/m3 (5) N/A 27.0
 
April 4, 2020, 8 a.m. 1.8 ppb (2) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (29) 0.03 ppb (0) 4.0 μg/m3 (4) N/A 29.0
 
April 4, 2020, 7 a.m. 2.4 ppb (2) -0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 38.0 ppb (29) 0.04 ppb (0) 3.0 μg/m3 (3) N/A 29.0
 
April 4, 2020, 6 a.m. 2.3 ppb (2) -0.4 ppb (0) N/A 3.0 ppb (3) N/A N/A 37.0 ppb (28) 0.04 ppb (0) 6.0 μg/m3 (5) N/A 28.0
 
April 4, 2020, 5 a.m. 3.4 ppb (3) -0.4 ppb (0) N/A 4.0 ppb (4) N/A N/A 36.0 ppb (28) 0.03 ppb (0) 6.0 μg/m3 (5) N/A 28.0
 
April 4, 2020, 4 a.m. 7.9 ppb (7) -0.3 ppb (0) N/A 8.0 ppb (7) N/A N/A 30.0 ppb (23) 0.04 ppb (0) 3.0 μg/m3 (3) N/A 23.0
 
April 4, 2020, 3 a.m. 1.0 ppb (1) -0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (32) 0.06 ppb (1) 4.0 μg/m3 (4) N/A 32.0
 
April 4, 2020, 2 a.m. 1.1 ppb (1) -0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 46.0 ppb (35) 0.06 ppb (1) 4.0 μg/m3 (4) N/A 35.0
 
April 4, 2020, 1 a.m. 2.3 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) 0.06 ppb (1) 5.0 μg/m3 (5) N/A 35.0
 
April 4, 2020, midnight 13.4 ppb (12) 8.7 ppb (8) N/A 5.0 ppb (5) N/A N/A 44.0 ppb (34) 0.07 ppb (1) 5.0 μg/m3 (5) N/A 34.0
 
April 3, 2020, 11 p.m. 17.9 ppb (17) 13.1 ppb (12) N/A 5.0 ppb (5) N/A N/A 44.0 ppb (34) 0.07 ppb (1) 3.0 μg/m3 (3) N/A 34.0
 
April 3, 2020, 10 p.m. 4.8 ppb (4) 2.8 ppb (3) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (35) 0.06 ppb (1) 3.0 μg/m3 (3) N/A 35.0
 
April 3, 2020, 9 p.m. 4.4 ppb (4) 2.0 ppb (2) N/A 2.0 ppb (2) N/A N/A 46.0 ppb (35) 0.06 ppb (1) 3.0 μg/m3 (3) N/A 35.0
 
April 3, 2020, 8 p.m. 1.9 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 45.0 ppb (35) 0.06 ppb (1) 5.0 μg/m3 (5) N/A 35.0
 
April 3, 2020, 7 p.m. 2.1 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A N/A 44.0 ppb (34) 0.07 ppb (1) 3.0 μg/m3 (3) N/A 34.0
 
April 3, 2020, 6 p.m. 8.1 ppb (8) 5.0 ppb (5) N/A 3.0 ppb (3) N/A N/A 42.0 ppb (32) 0.08 ppb (1) 4.0 μg/m3 (4) N/A 32.0
 
April 3, 2020, 5 p.m. 4.0 ppb (4) 1.7 ppb (2) N/A 2.0 ppb (2) N/A N/A 39.0 ppb (30) 0.08 ppb (1) 3.0 μg/m3 (3) N/A 30.0
 
April 3, 2020, 4 p.m. 2.2 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (28) 0.08 ppb (1) 3.0 μg/m3 (3) N/A 28.0
 
April 3, 2020, 3 p.m. 3.3 ppb (3) 1.1 ppb (1) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (28) 0.08 ppb (1) 3.0 μg/m3 (3) N/A 28.0
 
April 3, 2020, 2 p.m. 1.0 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (28) 0.08 ppb (1) 0.0 μg/m3 (0) N/A 28.0
 
April 3, 2020, 1 p.m. 3.4 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A N/A 35.0 ppb (27) 0.09 ppb (1) 4.0 μg/m3 (4) N/A 27.0
 
April 3, 2020, noon 5.6 ppb (5) 0.8 ppb (1) N/A 5.0 ppb (5) N/A N/A 33.0 ppb (25) 0.12 ppb (1) 5.0 μg/m3 (5) N/A 25.0
 
April 3, 2020, 11 a.m. 3.0 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A N/A 34.0 ppb (26) 0.13 ppb (1) 4.0 μg/m3 (4) N/A 26.0
 
April 3, 2020, 10 a.m. 0.8 ppb (1) -0.4 ppb (0) N/A 1.0 ppb (1) N/A N/A 36.0 ppb (28) N/A 3.0 μg/m3 (3) N/A 28.0
 
April 3, 2020, 9 a.m. 2.0 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A N/A 35.0 ppb (27) N/A 1.0 μg/m3 (1) N/A 27.0
 
April 3, 2020, 8 a.m. 1.1 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 37.0 ppb (28) 0.08 ppb (1) 1.0 μg/m3 (1) N/A 28.0
 
April 3, 2020, 7 a.m. 5.1 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 34.0 ppb (26) 0.11 ppb (1) 2.0 μg/m3 (2) N/A 26.0
 
April 3, 2020, 6 a.m. 7.1 ppb (7) 0.7 ppb (1) N/A 6.0 ppb (6) N/A N/A 36.0 ppb (28) 0.14 ppb (2) 3.0 μg/m3 (3) N/A 28.0
 
April 3, 2020, 5 a.m. 1.5 ppb (1) -0.2 ppb (0) N/A 2.0 ppb (2) N/A N/A 43.0 ppb (33) 0.1 ppb (1) 5.0 μg/m3 (5) N/A 33.0
 
April 3, 2020, 4 a.m. 1.7 ppb (2) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (32) 0.1 ppb (1) 8.0 μg/m3 (7) N/A 32.0
 
April 3, 2020, 3 a.m. 1.4 ppb (1) -0.3 ppb (0) N/A 2.0 ppb (2) N/A N/A 42.0 ppb (32) 0.1 ppb (1) 8.0 μg/m3 (7) N/A 32.0
 
April 3, 2020, 2 a.m. 1.1 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (33) 0.1 ppb (1) 4.0 μg/m3 (4) N/A 33.0
 
April 3, 2020, 1 a.m. 1.1 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (32) 0.1 ppb (1) 3.0 μg/m3 (3) N/A 32.0
 
April 3, 2020, midnight 1.0 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (33) 0.1 ppb (1) 5.0 μg/m3 (5) N/A 33.0
 
April 2, 2020, 11 p.m. 1.0 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 44.0 ppb (34) 0.11 ppb (1) 6.0 μg/m3 (5) N/A 34.0
 
April 2, 2020, 10 p.m. 1.4 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 43.0 ppb (33) 0.11 ppb (1) 4.0 μg/m3 (4) N/A 33.0
 
April 2, 2020, 9 p.m. 0.9 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (32) 0.12 ppb (1) 3.0 μg/m3 (3) N/A 32.0
 
April 2, 2020, 8 p.m. 1.0 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 40.0 ppb (31) 0.12 ppb (1) 3.0 μg/m3 (3) N/A 31.0
 
April 2, 2020, 7 p.m. 1.2 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 38.0 ppb (29) 0.12 ppb (1) 2.0 μg/m3 (2) N/A 29.0
 
April 2, 2020, 6 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 36.0 ppb (28) 0.12 ppb (1) 4.0 μg/m3 (4) N/A 28.0
 
April 2, 2020, 5 p.m. 0.8 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A N/A 35.0 ppb (27) 0.13 ppb (1) 5.0 μg/m3 (5) N/A 27.0
 
April 2, 2020, 4 p.m. 1.5 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A N/A 33.0 ppb (25) 0.12 ppb (1) 8.0 μg/m3 (7) N/A 25.0
 
April 2, 2020, 3 p.m. 1.1 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A N/A 32.0 ppb (25) 0.12 ppb (1) 10.0 μg/m3 (9) N/A 25.0