AQSQID: 530090013

Site Name: Cheeka Peak

Location: Wa'atch, WA

Reporting: True, Located: True

Current AQI: 26.0

Wa'atch WA, US: 48.2867, -124.6203

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 23, 2019, 7 a.m. N/A 0.0 ppb (0) 0.2 ppb (0) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.07 ppb (1) N/A 2.2 μg/m3 (9) 26.0
 
May 23, 2019, 6 a.m. N/A 0.0 ppb (0) 0.5 ppb (0) N/A N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 0.9 μg/m3 (4) 23.0
 
May 23, 2019, 5 a.m. N/A 0.0 ppb (0) 0.2 ppb (0) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.08 ppb (1) N/A 1.4 μg/m3 (6) 22.0
 
May 23, 2019, 4 a.m. N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.08 ppb (1) N/A 1.8 μg/m3 (8) 28.0
 
May 23, 2019, 3 a.m. N/A 0.0 ppb (0) 0.1 ppb (0) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.09 ppb (1) N/A 2.1 μg/m3 (9) 27.0
 
May 23, 2019, 2 a.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A N/A 0.0 ppb (0) N/A 0.08 ppb (1) N/A 3.3 μg/m3 (14) 14.0
 
May 23, 2019, 1 a.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.07 ppb (1) N/A 3.6 μg/m3 (15) 24.0
 
May 23, 2019, midnight N/A 0.1 ppb (0) 0.6 ppb (1) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.07 ppb (1) N/A 5.1 μg/m3 (21) 26.0
 
May 22, 2019, 11 p.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.07 ppb (1) N/A 4.4 μg/m3 (18) 28.0
 
May 22, 2019, 10 p.m. N/A 0.1 ppb (0) 1.1 ppb (1) N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.06 ppb (1) N/A 6.0 μg/m3 (25) 25.0
 
May 22, 2019, 9 p.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.06 ppb (1) N/A 5.8 μg/m3 (24) 26.0
 
May 22, 2019, 8 p.m. N/A 0.1 ppb (0) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.06 ppb (1) N/A 6.9 μg/m3 (29) 29.0
 
May 22, 2019, 7 p.m. N/A 0.1 ppb (0) 0.8 ppb (1) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.08 ppb (1) N/A 6.7 μg/m3 (28) 28.0
 
May 22, 2019, 6 p.m. N/A 0.0 ppb (0) 0.5 ppb (0) N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.07 ppb (1) N/A 6.1 μg/m3 (25) 25.0
 
May 22, 2019, 5 p.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.08 ppb (1) N/A 3.9 μg/m3 (16) 21.0
 
May 22, 2019, 4 p.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.07 ppb (1) N/A 2.4 μg/m3 (10) 25.0
 
May 22, 2019, 3 p.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.07 ppb (1) N/A 2.2 μg/m3 (9) 26.0
 
May 22, 2019, 2 p.m. N/A 0.0 ppb (0) 0.1 ppb (0) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.07 ppb (1) N/A 1.8 μg/m3 (8) 27.0
 
May 22, 2019, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.07 ppb (1) N/A 1.7 μg/m3 (7) 31.0
 
May 22, 2019, noon N/A 0.0 ppb (0) 0.1 ppb (0) N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.07 ppb (1) N/A 1.7 μg/m3 (7) 31.0
 
May 22, 2019, 11 a.m. N/A 0.0 ppb (0) 0.1 ppb (0) N/A N/A N/A 41.0 ppb (32) 0.07 ppb (1) N/A 1.8 μg/m3 (8) 32.0
 
May 22, 2019, 10 a.m. N/A 0.0 ppb (0) 0.1 ppb (0) N/A N/A 0.0 ppb (0) 41.0 ppb (32) 0.08 ppb (1) N/A 2.0 μg/m3 (8) 32.0
 
May 22, 2019, 9 a.m. N/A 0.0 ppb (0) 0.1 ppb (0) N/A N/A 0.0 ppb (0) 42.0 ppb (32) 0.08 ppb (1) N/A 2.1 μg/m3 (9) 32.0
 
May 22, 2019, 8 a.m. N/A 0.0 ppb (0) 0.1 ppb (0) N/A N/A 0.0 ppb (0) 42.0 ppb (32) 0.08 ppb (1) N/A 2.0 μg/m3 (8) 32.0
 
May 22, 2019, 7 a.m. N/A 0.0 ppb (0) 0.1 ppb (0) N/A N/A 0.0 ppb (0) 42.0 ppb (32) 0.08 ppb (1) N/A 1.4 μg/m3 (6) 32.0
 
May 22, 2019, 6 a.m. N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 1.6 μg/m3 (7) 32.0
 
May 22, 2019, 5 a.m. N/A 0.0 ppb (0) 0.1 ppb (0) N/A N/A 0.0 ppb (0) 42.0 ppb (32) 0.08 ppb (1) N/A 1.5 μg/m3 (6) 32.0
 
May 22, 2019, 4 a.m. N/A 0.0 ppb (0) 0.1 ppb (0) N/A N/A 0.0 ppb (0) 44.0 ppb (34) 0.09 ppb (1) N/A 1.4 μg/m3 (6) 34.0
 
May 22, 2019, 3 a.m. N/A 0.0 ppb (0) 0.2 ppb (0) N/A N/A 0.0 ppb (0) 44.0 ppb (34) 0.08 ppb (1) N/A 1.6 μg/m3 (7) 34.0
 
May 22, 2019, 2 a.m. N/A 0.0 ppb (0) 0.2 ppb (0) N/A N/A 0.0 ppb (0) 44.0 ppb (34) 0.09 ppb (1) N/A 1.4 μg/m3 (6) 34.0
 
May 22, 2019, 1 a.m. N/A 0.0 ppb (0) 0.2 ppb (0) N/A N/A 0.0 ppb (0) 42.0 ppb (32) 0.09 ppb (1) N/A 1.5 μg/m3 (6) 32.0
 
May 22, 2019, midnight N/A 0.2 ppb (0) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.09 ppb (1) N/A 1.9 μg/m3 (8) 29.0
 
May 21, 2019, 11 p.m. N/A 0.6 ppb (1) 2.7 ppb (3) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.08 ppb (1) N/A 2.9 μg/m3 (12) 27.0
 
May 21, 2019, 10 p.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.07 ppb (1) N/A 2.9 μg/m3 (12) 28.0
 
May 21, 2019, 9 p.m. N/A 0.0 ppb (0) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 41.0 ppb (32) 0.08 ppb (1) N/A 3.1 μg/m3 (13) 32.0
 
May 21, 2019, 8 p.m. N/A 0.1 ppb (0) 0.6 ppb (1) N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.08 ppb (1) N/A 2.9 μg/m3 (12) 31.0
 
May 21, 2019, 7 p.m. N/A 0.1 ppb (0) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.08 ppb (1) N/A 3.5 μg/m3 (15) 28.0
 
May 21, 2019, 6 p.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.08 ppb (1) N/A 2.8 μg/m3 (12) 23.0
 
May 21, 2019, 5 p.m. N/A 0.0 ppb (0) 0.2 ppb (0) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.08 ppb (1) N/A 2.1 μg/m3 (9) 22.0
 
May 21, 2019, 4 p.m. N/A 0.0 ppb (0) 0.2 ppb (0) N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.08 ppb (1) N/A 2.0 μg/m3 (8) 20.0
 
May 21, 2019, 3 p.m. N/A 0.0 ppb (0) 0.1 ppb (0) N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.08 ppb (1) N/A 1.8 μg/m3 (8) 25.0
 
May 21, 2019, 2 p.m. N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.08 ppb (1) N/A 1.7 μg/m3 (7) 25.0
 
May 21, 2019, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.07 ppb (1) N/A 1.6 μg/m3 (7) 25.0
 
May 21, 2019, noon N/A 0.0 ppb (0) 0.2 ppb (0) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.08 ppb (1) N/A 1.2 μg/m3 (5) 27.0
 
May 21, 2019, 11 a.m. N/A 0.0 ppb (0) 0.2 ppb (0) N/A N/A N/A 35.0 ppb (27) 0.08 ppb (1) N/A 0.7 μg/m3 (3) 27.0
 
May 21, 2019, 10 a.m. N/A 0.0 ppb (0) 0.2 ppb (0) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.08 ppb (1) N/A 0.7 μg/m3 (3) 28.0
 
May 21, 2019, 9 a.m. N/A 0.0 ppb (0) 0.2 ppb (0) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.08 ppb (1) N/A 0.7 μg/m3 (3) 27.0
 
May 21, 2019, 8 a.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.08 ppb (1) N/A 0.6 μg/m3 (2) 27.0
 
May 21, 2019, 7 a.m. N/A 0.0 ppb (0) 0.5 ppb (0) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.08 ppb (1) N/A 0.7 μg/m3 (3) 26.0
 
May 21, 2019, 6 a.m. N/A 0.0 ppb (0) 0.5 ppb (0) N/A N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 1.7 μg/m3 (7) 28.0
 
May 21, 2019, 5 a.m. N/A 0.0 ppb (0) 0.1 ppb (0) N/A N/A 0.0 ppb (0) 41.0 ppb (32) 0.08 ppb (1) N/A 2.2 μg/m3 (9) 32.0
 
May 21, 2019, 4 a.m. N/A 0.0 ppb (0) 0.1 ppb (0) N/A N/A 0.0 ppb (0) 45.0 ppb (35) 0.08 ppb (1) N/A 2.1 μg/m3 (9) 35.0
 
May 21, 2019, 3 a.m. N/A 0.0 ppb (0) 0.1 ppb (0) N/A N/A 0.0 ppb (0) 43.0 ppb (33) 0.08 ppb (1) N/A 2.6 μg/m3 (11) 33.0
 
May 21, 2019, 2 a.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) N/A 0.08 ppb (1) N/A 3.0 μg/m3 (12) 12.0
 
May 21, 2019, 1 a.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 43.0 ppb (33) 0.08 ppb (1) N/A 3.1 μg/m3 (13) 33.0
 
May 21, 2019, midnight N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 0.0 ppb (0) 46.0 ppb (35) 0.07 ppb (1) N/A 2.8 μg/m3 (12) 35.0
 
May 20, 2019, 11 p.m. N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 0.0 ppb (0) 48.0 ppb (37) 0.07 ppb (1) N/A 2.4 μg/m3 (10) 37.0
 
May 20, 2019, 10 p.m. N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 0.0 ppb (0) 46.0 ppb (35) 0.07 ppb (1) N/A 2.6 μg/m3 (11) 35.0
 
May 20, 2019, 9 p.m. N/A 0.0 ppb (0) 0.1 ppb (0) N/A N/A 0.0 ppb (0) 46.0 ppb (35) 0.07 ppb (1) N/A 3.0 μg/m3 (12) 35.0
 
May 20, 2019, 8 p.m. N/A 0.0 ppb (0) 0.1 ppb (0) N/A N/A 0.0 ppb (0) 47.0 ppb (36) 0.08 ppb (1) N/A 3.0 μg/m3 (12) 36.0
 
May 20, 2019, 7 p.m. N/A 0.0 ppb (0) 0.1 ppb (0) N/A N/A 0.0 ppb (0) 45.0 ppb (35) 0.08 ppb (1) N/A 3.0 μg/m3 (12) 35.0
 
May 20, 2019, 6 p.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 46.0 ppb (35) 0.08 ppb (1) N/A 2.5 μg/m3 (10) 35.0
 
May 20, 2019, 5 p.m. N/A 0.1 ppb (0) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 46.0 ppb (35) 0.08 ppb (1) N/A 2.3 μg/m3 (10) 35.0
 
May 20, 2019, 4 p.m. N/A 0.1 ppb (0) 1.3 ppb (1) N/A N/A 0.0 ppb (0) 44.0 ppb (34) 0.08 ppb (1) N/A 1.8 μg/m3 (8) 34.0
 
May 20, 2019, 3 p.m. N/A 0.0 ppb (0) 0.2 ppb (0) N/A N/A 0.0 ppb (0) 44.0 ppb (34) 0.07 ppb (1) N/A 0.6 μg/m3 (2) 34.0
 
May 20, 2019, 2 p.m. N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 0.0 ppb (0) 42.0 ppb (32) 0.07 ppb (1) N/A 0.6 μg/m3 (2) 32.0
 
May 20, 2019, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (32) 0.07 ppb (1) N/A 0.6 μg/m3 (2) 32.0
 
May 20, 2019, noon N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 0.0 ppb (0) 41.0 ppb (32) 0.08 ppb (1) N/A 0.5 μg/m3 (2) 32.0
 
May 20, 2019, 11 a.m. N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A N/A 41.0 ppb (32) 0.07 ppb (1) N/A 0.6 μg/m3 (2) 32.0
 
May 20, 2019, 10 a.m. N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.07 ppb (1) N/A 0.5 μg/m3 (2) 31.0
 
May 20, 2019, 9 a.m. N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.08 ppb (1) N/A 0.5 μg/m3 (2) 31.0
 
May 20, 2019, 8 a.m. N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 0.0 ppb (0) 41.0 ppb (32) 0.07 ppb (1) N/A 0.5 μg/m3 (2) 32.0
 
May 20, 2019, 7 a.m. N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.08 ppb (1) N/A 0.5 μg/m3 (2) 31.0
 
May 20, 2019, 6 a.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 0.5 μg/m3 (2) 29.0
 
May 20, 2019, 5 a.m. N/A 0.0 ppb (0) 1.4 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.08 ppb (1) N/A 0.6 μg/m3 (2) 28.0
 
May 20, 2019, 4 a.m. N/A 0.0 ppb (0) 1.8 ppb (2) N/A N/A 0.0 ppb (0) 35.0 ppb (27) 0.08 ppb (1) N/A 0.5 μg/m3 (2) 27.0
 
May 20, 2019, 3 a.m. N/A 0.3 ppb (0) 7.4 ppb (7) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.07 ppb (1) N/A 0.6 μg/m3 (2) 23.0
 
May 20, 2019, 2 a.m. N/A 0.0 ppb (0) 0.1 ppb (0) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.07 ppb (1) N/A 0.9 μg/m3 (4) 29.0
 
May 20, 2019, 1 a.m. N/A 0.0 ppb (0) 0.2 ppb (0) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.07 ppb (1) N/A 0.9 μg/m3 (4) 29.0
 
May 20, 2019, midnight N/A 0.0 ppb (0) 0.5 ppb (0) N/A N/A 0.0 ppb (0) 41.0 ppb (32) 0.07 ppb (1) N/A 1.3 μg/m3 (5) 32.0
 
May 19, 2019, 11 p.m. N/A 0.0 ppb (0) 0.5 ppb (0) N/A N/A 0.0 ppb (0) 41.0 ppb (32) 0.07 ppb (1) N/A 1.2 μg/m3 (5) 32.0
 
May 19, 2019, 10 p.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.07 ppb (1) N/A 1.1 μg/m3 (5) 31.0
 
May 19, 2019, 9 p.m. N/A 0.0 ppb (0) 0.2 ppb (0) N/A N/A 0.0 ppb (0) 42.0 ppb (32) 0.07 ppb (1) N/A 1.0 μg/m3 (4) 32.0
 
May 19, 2019, 8 p.m. N/A 0.0 ppb (0) 0.2 ppb (0) N/A N/A 0.0 ppb (0) 41.0 ppb (32) 0.07 ppb (1) N/A 1.2 μg/m3 (5) 32.0
 
May 19, 2019, 7 p.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.07 ppb (1) N/A 1.3 μg/m3 (5) 31.0
 
May 19, 2019, 6 p.m. N/A 0.1 ppb (0) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.07 ppb (1) N/A 1.4 μg/m3 (6) 30.0
 
May 19, 2019, 5 p.m. N/A 0.1 ppb (0) 0.8 ppb (1) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.07 ppb (1) N/A 1.6 μg/m3 (7) 28.0
 
May 19, 2019, 4 p.m. N/A 0.1 ppb (0) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.08 ppb (1) N/A 1.6 μg/m3 (7) 28.0
 
May 19, 2019, 3 p.m. N/A 0.1 ppb (0) 0.8 ppb (1) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.08 ppb (1) N/A 1.7 μg/m3 (7) 28.0
 
May 19, 2019, 2 p.m. N/A 0.0 ppb (0) 0.8 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.07 ppb (1) N/A 1.6 μg/m3 (7) 29.0
 
May 19, 2019, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.07 ppb (1) N/A 1.5 μg/m3 (6) 30.0
 
May 19, 2019, noon N/A 0.0 ppb (0) 2.2 ppb (2) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.07 ppb (1) N/A 1.5 μg/m3 (6) 28.0
 
May 19, 2019, 11 a.m. N/A 0.0 ppb (0) 0.1 ppb (0) N/A N/A N/A 43.0 ppb (33) 0.07 ppb (1) N/A 1.3 μg/m3 (5) 33.0
 
May 19, 2019, 10 a.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 41.0 ppb (32) 0.07 ppb (1) N/A 1.3 μg/m3 (5) 32.0
 
May 19, 2019, 9 a.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.07 ppb (1) N/A 1.5 μg/m3 (6) 30.0
 
May 19, 2019, 8 a.m. N/A 0.0 ppb (0) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.07 ppb (1) N/A 1.9 μg/m3 (8) 28.0
 
May 19, 2019, 7 a.m. N/A 0.0 ppb (0) 4.9 ppb (5) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.07 ppb (1) N/A 2.3 μg/m3 (10) 25.0
 
May 19, 2019, 6 a.m. N/A 0.0 ppb (0) 0.5 ppb (0) N/A N/A 0.0 ppb (0) 44.0 ppb (34) N/A N/A 1.6 μg/m3 (7) 34.0
 
May 19, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 43.0 ppb (33) 0.08 ppb (1) N/A 1.5 μg/m3 (6) 33.0
 
May 19, 2019, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 44.0 ppb (34) 0.08 ppb (1) N/A 1.4 μg/m3 (6) 34.0
 
May 19, 2019, 3 a.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 43.0 ppb (33) 0.08 ppb (1) N/A 1.3 μg/m3 (5) 33.0
 
May 19, 2019, 2 a.m. N/A 0.0 ppb (0) 0.2 ppb (0) N/A N/A 0.0 ppb (0) N/A 0.07 ppb (1) N/A 1.3 μg/m3 (5) 5.0
 
May 19, 2019, 1 a.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.07 ppb (1) N/A 1.3 μg/m3 (5) 30.0
 
May 19, 2019, midnight N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.07 ppb (1) N/A 1.3 μg/m3 (5) 31.0
 
May 18, 2019, 11 p.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.06 ppb (1) N/A 1.3 μg/m3 (5) 30.0
 
May 18, 2019, 10 p.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.06 ppb (1) N/A 1.2 μg/m3 (5) 31.0
 
May 18, 2019, 9 p.m. N/A 0.0 ppb (0) 0.1 ppb (0) N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.06 ppb (1) N/A 1.1 μg/m3 (5) 31.0
 
May 18, 2019, 8 p.m. N/A 0.0 ppb (0) 0.2 ppb (0) N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.07 ppb (1) N/A 1.2 μg/m3 (5) 31.0
 
May 18, 2019, 7 p.m. N/A 0.0 ppb (0) 0.5 ppb (0) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.07 ppb (1) N/A 1.8 μg/m3 (8) 29.0
 
May 18, 2019, 6 p.m. N/A 0.0 ppb (0) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.08 ppb (1) N/A 2.2 μg/m3 (9) 26.0
 
May 18, 2019, 5 p.m. N/A 0.1 ppb (0) 1.1 ppb (1) N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.08 ppb (1) N/A 2.3 μg/m3 (10) 25.0
 
May 18, 2019, 4 p.m. N/A 0.4 ppb (0) 2.1 ppb (2) N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.08 ppb (1) N/A 2.6 μg/m3 (11) 25.0
 
May 18, 2019, 3 p.m. N/A 0.1 ppb (0) 1.5 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.08 ppb (1) N/A 2.6 μg/m3 (11) 28.0
 
May 18, 2019, 2 p.m. N/A 0.0 ppb (0) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.07 ppb (1) N/A 1.8 μg/m3 (8) 26.0
 
May 18, 2019, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.07 ppb (1) N/A 1.1 μg/m3 (5) 28.0
 
May 18, 2019, noon N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 0.0 ppb (0) 43.0 ppb (33) 0.07 ppb (1) N/A 1.4 μg/m3 (6) 33.0
 
May 18, 2019, 11 a.m. N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A N/A 42.0 ppb (32) 0.07 ppb (1) N/A 2.0 μg/m3 (8) 32.0
 
May 18, 2019, 10 a.m. N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.07 ppb (1) N/A 1.6 μg/m3 (7) 31.0
 
May 18, 2019, 9 a.m. N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.06 ppb (1) N/A 1.7 μg/m3 (7) 29.0
 
May 18, 2019, 8 a.m. N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.07 ppb (1) N/A 1.8 μg/m3 (8) 29.0
 
May 18, 2019, 7 a.m. N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.07 ppb (1) N/A 1.3 μg/m3 (5) 29.0
 
May 18, 2019, 6 a.m. N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 1.2 μg/m3 (5) 28.0
 
May 18, 2019, 5 a.m. N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.07 ppb (1) N/A 0.8 μg/m3 (3) 28.0
 
May 18, 2019, 4 a.m. N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.08 ppb (1) N/A 0.7 μg/m3 (3) 28.0
 
May 18, 2019, 3 a.m. N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.08 ppb (1) N/A 1.0 μg/m3 (4) 28.0
 
May 18, 2019, 2 a.m. N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.08 ppb (1) N/A 1.7 μg/m3 (7) 29.0
 
May 18, 2019, 1 a.m. N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.08 ppb (1) N/A 2.0 μg/m3 (8) 30.0
 
May 18, 2019, midnight N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 0.0 ppb (0) 40.0 ppb (31) 0.07 ppb (1) N/A 1.8 μg/m3 (8) 31.0
 
May 17, 2019, 11 p.m. N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 0.0 ppb (0) 41.0 ppb (32) 0.07 ppb (1) N/A 1.8 μg/m3 (8) 32.0
 
May 17, 2019, 10 p.m. N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 0.0 ppb (0) 41.0 ppb (32) 0.08 ppb (1) N/A 1.8 μg/m3 (8) 32.0
 
May 17, 2019, 9 p.m. N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 0.0 ppb (0) 41.0 ppb (32) 0.09 ppb (1) N/A 1.7 μg/m3 (7) 32.0
 
May 17, 2019, 8 p.m. N/A 0.0 ppb (0) 0.1 ppb (0) N/A N/A 0.0 ppb (0) 41.0 ppb (32) 0.08 ppb (1) N/A 1.8 μg/m3 (8) 32.0
 
May 17, 2019, 7 p.m. N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 0.0 ppb (0) 42.0 ppb (32) 0.08 ppb (1) N/A 2.2 μg/m3 (9) 32.0
 
May 17, 2019, 6 p.m. N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 0.0 ppb (0) 41.0 ppb (32) 0.08 ppb (1) N/A 2.1 μg/m3 (9) 32.0
 
May 17, 2019, 5 p.m. N/A 0.0 ppb (0) 0.2 ppb (0) N/A N/A 0.0 ppb (0) 41.0 ppb (32) 0.08 ppb (1) N/A 2.1 μg/m3 (9) 32.0
 
May 17, 2019, 4 p.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.08 ppb (1) N/A 2.1 μg/m3 (9) 30.0
 
May 17, 2019, 3 p.m. N/A 0.0 ppb (0) 0.2 ppb (0) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.07 ppb (1) N/A 1.7 μg/m3 (7) 29.0
 
May 17, 2019, 2 p.m. N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.08 ppb (1) N/A 0.7 μg/m3 (3) 28.0
 
May 17, 2019, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.07 ppb (1) N/A 1.1 μg/m3 (5) 29.0
 
May 17, 2019, noon N/A 0.0 ppb (0) 0.1 ppb (0) N/A N/A 0.0 ppb (0) 38.0 ppb (29) 0.07 ppb (1) N/A 0.9 μg/m3 (4) 29.0
 
May 17, 2019, 11 a.m. N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A N/A 37.0 ppb (28) 0.07 ppb (1) N/A 0.6 μg/m3 (2) 28.0
 
May 17, 2019, 10 a.m. N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.08 ppb (1) N/A 0.6 μg/m3 (2) 28.0
 
May 17, 2019, 9 a.m. N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A N/A 36.0 ppb (28) 0.07 ppb (1) N/A 0.5 μg/m3 (2) 28.0
 
May 17, 2019, 8 a.m. N/A 0.0 ppb (0) 0.1 ppb (0) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.08 ppb (1) N/A 0.5 μg/m3 (2) 28.0
 
May 17, 2019, 7 a.m. N/A 0.0 ppb (0) 0.2 ppb (0) N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.08 ppb (1) N/A 0.6 μg/m3 (2) 28.0
 
May 17, 2019, 6 a.m. N/A 0.0 ppb (0) 0.2 ppb (0) N/A N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 0.5 μg/m3 (2) 27.0
 
May 17, 2019, 5 a.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A N/A 34.0 ppb (26) 0.08 ppb (1) N/A 0.5 μg/m3 (2) 26.0
 
May 17, 2019, 4 a.m. N/A 0.0 ppb (0) 0.2 ppb (0) N/A N/A N/A 34.0 ppb (26) 0.08 ppb (1) N/A 0.5 μg/m3 (2) 26.0
 
May 17, 2019, 3 a.m. N/A 0.0 ppb (0) 1.2 ppb (1) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.07 ppb (1) N/A 0.5 μg/m3 (2) 24.0
 
May 17, 2019, 2 a.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A N/A 0.0 ppb (0) N/A 0.06 ppb (1) N/A 0.5 μg/m3 (2) 2.0
 
May 17, 2019, 1 a.m. N/A 0.0 ppb (0) 1.1 ppb (1) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.07 ppb (1) N/A 0.6 μg/m3 (2) 22.0
 
May 17, 2019, midnight N/A 0.1 ppb (0) 1.3 ppb (1) N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.06 ppb (1) N/A 0.6 μg/m3 (2) 22.0
 
May 16, 2019, 11 p.m. N/A 0.3 ppb (0) 2.4 ppb (2) N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.07 ppb (1) N/A 0.6 μg/m3 (2) 20.0
 
May 16, 2019, 10 p.m. N/A 0.3 ppb (0) 1.9 ppb (2) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.07 ppb (1) N/A 1.1 μg/m3 (5) 21.0
 
May 16, 2019, 9 p.m. N/A N/A 1.9 ppb (2) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.07 ppb (1) N/A 1.6 μg/m3 (7) 21.0
 
May 16, 2019, 8 p.m. N/A 0.8 ppb (1) 3.1 ppb (3) N/A N/A 0.0 ppb (0) 22.0 ppb (17) 0.07 ppb (1) N/A 0.9 μg/m3 (4) 17.0
 
May 16, 2019, 7 p.m. N/A 0.2 ppb (0) 1.1 ppb (1) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.07 ppb (1) N/A 3.2 μg/m3 (13) 24.0
 
May 16, 2019, 6 p.m. N/A 0.1 ppb (0) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.07 ppb (1) N/A 2.1 μg/m3 (9) 21.0
 
May 16, 2019, 5 p.m. N/A 0.1 ppb (0) 1.3 ppb (1) N/A N/A 0.0 ppb (0) 27.0 ppb (21) 0.07 ppb (1) N/A 3.1 μg/m3 (13) 21.0
 
May 16, 2019, 4 p.m. N/A 0.0 ppb (0) 1.4 ppb (1) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.07 ppb (1) N/A 3.4 μg/m3 (14) 23.0
 
May 16, 2019, 3 p.m. N/A 0.0 ppb (0) 1.2 ppb (1) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.07 ppb (1) N/A 3.3 μg/m3 (14) 25.0
 
May 16, 2019, 2 p.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.08 ppb (1) N/A 2.8 μg/m3 (12) 24.0
 
May 16, 2019, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.08 ppb (1) N/A 1.4 μg/m3 (6) 23.0
 
May 16, 2019, noon N/A 0.0 ppb (0) 1.3 ppb (1) N/A N/A 0.0 ppb (0) 30.0 ppb (23) 0.08 ppb (1) N/A 1.5 μg/m3 (6) 23.0
 
May 16, 2019, 11 a.m. N/A 0.0 ppb (0) 1.3 ppb (1) N/A N/A N/A 31.0 ppb (24) 0.07 ppb (1) N/A 1.9 μg/m3 (8) 24.0
 
May 16, 2019, 10 a.m. N/A N/A 1.5 ppb (1) N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.08 ppb (1) N/A 2.6 μg/m3 (11) 24.0
 
May 16, 2019, 9 a.m. N/A N/A 1.1 ppb (1) N/A N/A 0.0 ppb (0) 33.0 ppb (25) 0.07 ppb (1) N/A 2.2 μg/m3 (9) 25.0
 
May 16, 2019, 8 a.m. N/A 0.0 ppb (0) 0.1 ppb (0) N/A N/A 0.0 ppb (0) 37.0 ppb (28) 0.05 ppb (1) N/A 1.0 μg/m3 (4) 28.0