AQSQID: 470090101

Site Name: Look Rock - Gsmnp

Location: Maryville (Look Rock Tower), TN

Reporting: True, Located: True

Current AQI: 21.0

Maryville (Look Rock Tower) TN, US: 35.6322, -83.9422

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 20, 2020, 7 p.m. N/A 0.2 ppb (0) 3.0 ppb (3) N/A 2.8 ppb (3) N/A 27.0 ppb (21) 0.15 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 20, 2020, 6 p.m. N/A 0.2 ppb (0) 3.2 ppb (3) N/A 2.9 ppb (3) N/A 26.0 ppb (20) 0.15 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 20, 2020, 5 p.m. N/A 0.4 ppb (0) 3.3 ppb (3) N/A 3.0 ppb (3) N/A 26.0 ppb (20) 0.15 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 20, 2020, 4 p.m. N/A 0.3 ppb (0) 3.1 ppb (3) N/A 2.7 ppb (3) N/A 27.0 ppb (21) 0.16 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2020, 3 p.m. N/A 0.2 ppb (0) 2.9 ppb (3) N/A 2.7 ppb (3) N/A 28.0 ppb (22) 0.16 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 20, 2020, 2 p.m. N/A 0.2 ppb (0) 3.3 ppb (3) N/A 3.1 ppb (3) N/A 27.0 ppb (21) 0.16 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 20, 2020, 1 p.m. N/A 0.0 ppb (0) 3.6 ppb (3) N/A 3.5 ppb (3) N/A 26.0 ppb (20) 0.16 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 20, 2020, noon N/A 0.0 ppb (0) 3.5 ppb (3) N/A 3.5 ppb (3) N/A 25.0 ppb (19) 0.15 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 20, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 20, 2020, 10 a.m. N/A 0.0 ppb (0) 3.0 ppb (3) N/A 3.0 ppb (3) N/A 28.0 ppb (22) 0.17 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 20, 2020, 9 a.m. N/A 0.0 ppb (0) 2.6 ppb (2) N/A 2.6 ppb (2) N/A 29.0 ppb (22) 0.17 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 20, 2020, 8 a.m. N/A 0.0 ppb (0) 2.7 ppb (3) N/A 2.7 ppb (3) N/A 30.0 ppb (23) 0.16 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 20, 2020, 7 a.m. N/A 0.0 ppb (0) 3.3 ppb (3) N/A 3.3 ppb (3) N/A 29.0 ppb (22) 0.16 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 20, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 7.0 μg/m3 (29) 29.0
 
Jan. 20, 2020, 4 a.m. N/A 0.0 ppb (0) 3.2 ppb (3) N/A 3.2 ppb (3) N/A 29.0 ppb (22) 0.14 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 20, 2020, 3 a.m. N/A 0.0 ppb (0) 2.8 ppb (3) N/A 2.9 ppb (3) N/A 30.0 ppb (23) 0.13 ppb (1) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2020, 2 a.m. N/A 0.0 ppb (0) 2.7 ppb (3) N/A 2.7 ppb (3) N/A 29.0 ppb (22) 0.13 ppb (1) N/A 5.0 μg/m3 (21) 22.0
 
Jan. 20, 2020, 1 a.m. N/A 0.0 ppb (0) 2.6 ppb (2) N/A 2.7 ppb (3) N/A 29.0 ppb (22) 0.13 ppb (1) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2020, midnight N/A 0.0 ppb (0) 2.3 ppb (2) N/A 2.3 ppb (2) N/A 30.0 ppb (23) 0.13 ppb (1) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 19, 2020, 11 p.m. N/A 0.0 ppb (0) 2.2 ppb (2) N/A 2.2 ppb (2) N/A 32.0 ppb (25) 0.12 ppb (1) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 19, 2020, 10 p.m. N/A 0.0 ppb (0) 1.5 ppb (1) N/A 1.5 ppb (1) N/A 35.0 ppb (27) 0.13 ppb (1) N/A 5.0 μg/m3 (21) 27.0
 
Jan. 19, 2020, 9 p.m. N/A 0.1 ppb (0) 1.6 ppb (1) N/A 1.5 ppb (1) N/A 36.0 ppb (28) 0.12 ppb (1) N/A 6.0 μg/m3 (25) 28.0
 
Jan. 19, 2020, 8 p.m. N/A 0.1 ppb (0) 1.4 ppb (1) N/A 1.3 ppb (1) N/A 36.0 ppb (28) 0.12 ppb (1) N/A 5.0 μg/m3 (21) 28.0
 
Jan. 19, 2020, 7 p.m. N/A 0.1 ppb (0) 1.4 ppb (1) N/A 1.3 ppb (1) N/A 36.0 ppb (28) 0.12 ppb (1) N/A 5.0 μg/m3 (21) 28.0
 
Jan. 19, 2020, 6 p.m. N/A 0.2 ppb (0) 1.4 ppb (1) N/A 1.3 ppb (1) N/A 35.0 ppb (27) 0.12 ppb (1) N/A 4.0 μg/m3 (17) 27.0
 
Jan. 19, 2020, 5 p.m. N/A 0.2 ppb (0) 1.4 ppb (1) N/A 1.3 ppb (1) N/A 34.0 ppb (26) 0.12 ppb (1) N/A 4.0 μg/m3 (17) 26.0
 
Jan. 19, 2020, 4 p.m. N/A 0.1 ppb (0) 1.4 ppb (1) N/A 1.2 ppb (1) N/A 34.0 ppb (26) 0.12 ppb (1) N/A 4.0 μg/m3 (17) 26.0
 
Jan. 19, 2020, 3 p.m. N/A 0.2 ppb (0) 1.4 ppb (1) N/A 1.2 ppb (1) N/A 33.0 ppb (25) 0.12 ppb (1) N/A 4.0 μg/m3 (17) 25.0
 
Jan. 19, 2020, 2 p.m. N/A 0.0 ppb (0) 1.3 ppb (1) N/A 1.2 ppb (1) N/A 31.0 ppb (24) 0.12 ppb (1) N/A 4.0 μg/m3 (17) 24.0
 
Jan. 19, 2020, 1 p.m. N/A 0.0 ppb (0) 1.2 ppb (1) N/A 1.2 ppb (1) N/A 31.0 ppb (24) 0.12 ppb (1) N/A 3.0 μg/m3 (12) 24.0
 
Jan. 19, 2020, noon N/A 0.0 ppb (0) 1.0 ppb (1) N/A 1.1 ppb (1) N/A 32.0 ppb (25) 0.12 ppb (1) N/A 3.0 μg/m3 (12) 25.0
 
Jan. 19, 2020, 11 a.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A 0.9 ppb (1) N/A 33.0 ppb (25) 0.12 ppb (1) N/A 1.0 μg/m3 (4) 25.0
 
Jan. 19, 2020, 10 a.m. N/A 0.0 ppb (0) 0.8 ppb (1) N/A 0.8 ppb (1) N/A 33.0 ppb (25) 0.11 ppb (1) N/A 1.0 μg/m3 (4) 25.0
 
Jan. 19, 2020, 9 a.m. N/A 0.0 ppb (0) 0.8 ppb (1) N/A 0.9 ppb (1) N/A 29.0 ppb (22) 0.13 ppb (1) N/A 2.0 μg/m3 (8) 22.0
 
Jan. 19, 2020, 8 a.m. N/A 0.0 ppb (0) 1.3 ppb (1) N/A 1.4 ppb (1) N/A 25.0 ppb (19) 0.15 ppb (2) N/A 2.0 μg/m3 (8) 19.0
 
Jan. 19, 2020, 7 a.m. N/A 0.0 ppb (0) 1.4 ppb (1) N/A 1.5 ppb (1) N/A 26.0 ppb (20) 0.15 ppb (2) N/A 2.0 μg/m3 (8) 20.0
 
Jan. 19, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 1.0 μg/m3 (4) 22.0
 
Jan. 19, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 4.0 μg/m3 (17) 25.0
 
Jan. 19, 2020, 4 a.m. N/A 0.0 ppb (0) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 35.0 ppb (27) 0.15 ppb (2) N/A 3.0 μg/m3 (12) 27.0
 
Jan. 19, 2020, 3 a.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A 1.0 ppb (1) N/A 33.0 ppb (25) 0.15 ppb (2) N/A 3.0 μg/m3 (12) 25.0
 
Jan. 19, 2020, 2 a.m. N/A 0.0 ppb (0) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 34.0 ppb (26) 0.15 ppb (2) N/A 3.0 μg/m3 (12) 26.0
 
Jan. 19, 2020, 1 a.m. N/A 0.0 ppb (0) 0.8 ppb (1) N/A 0.9 ppb (1) N/A 33.0 ppb (25) 0.15 ppb (2) N/A 3.0 μg/m3 (12) 25.0
 
Jan. 19, 2020, midnight N/A 0.0 ppb (0) 0.9 ppb (1) N/A 1.0 ppb (1) N/A 34.0 ppb (26) 0.15 ppb (2) N/A 2.0 μg/m3 (8) 26.0
 
Jan. 18, 2020, 11 p.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A 1.0 ppb (1) N/A 34.0 ppb (26) 0.14 ppb (2) N/A 2.0 μg/m3 (8) 26.0
 
Jan. 18, 2020, 10 p.m. N/A 0.0 ppb (0) 1.2 ppb (1) N/A 1.2 ppb (1) N/A 33.0 ppb (25) 0.14 ppb (2) N/A 4.0 μg/m3 (17) 25.0
 
Jan. 18, 2020, 9 p.m. N/A 0.0 ppb (0) 0.7 ppb (1) N/A 0.7 ppb (1) N/A 37.0 ppb (28) 0.14 ppb (2) N/A 3.0 μg/m3 (12) 28.0
 
Jan. 18, 2020, 8 p.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A 0.7 ppb (1) N/A 37.0 ppb (28) 0.13 ppb (1) N/A 2.0 μg/m3 (8) 28.0
 
Jan. 18, 2020, 7 p.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A 0.7 ppb (1) N/A 38.0 ppb (29) 0.13 ppb (1) N/A 4.0 μg/m3 (17) 29.0
 
Jan. 18, 2020, 6 p.m. N/A 0.0 ppb (0) 0.7 ppb (1) N/A 0.7 ppb (1) N/A 39.0 ppb (30) 0.13 ppb (1) N/A 2.0 μg/m3 (8) 30.0
 
Jan. 18, 2020, 5 p.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A 0.7 ppb (1) N/A 38.0 ppb (29) 0.12 ppb (1) N/A 1.0 μg/m3 (4) 29.0
 
Jan. 18, 2020, 4 p.m. N/A 0.0 ppb (0) 0.8 ppb (1) N/A 0.9 ppb (1) N/A 38.0 ppb (29) 0.15 ppb (2) N/A 3.0 μg/m3 (12) 29.0
 
Jan. 18, 2020, 3 p.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A 0.9 ppb (1) N/A 39.0 ppb (30) 0.15 ppb (2) N/A 5.0 μg/m3 (21) 30.0
 
Jan. 18, 2020, 2 p.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A 1.0 ppb (1) N/A 40.0 ppb (31) 0.15 ppb (2) N/A 5.0 μg/m3 (21) 31.0
 
Jan. 18, 2020, 1 p.m. N/A 0.0 ppb (0) 1.1 ppb (1) N/A 1.2 ppb (1) N/A 40.0 ppb (31) 0.15 ppb (2) N/A 5.0 μg/m3 (21) 31.0
 
Jan. 18, 2020, noon N/A 0.0 ppb (0) 1.2 ppb (1) N/A 1.2 ppb (1) N/A 41.0 ppb (32) 0.14 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 18, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 18, 2020, 10 a.m. N/A 0.0 ppb (0) 1.5 ppb (1) N/A 1.6 ppb (1) N/A 41.0 ppb (32) 0.13 ppb (1) N/A 7.0 μg/m3 (29) 32.0
 
Jan. 18, 2020, 9 a.m. N/A 0.0 ppb (0) 1.8 ppb (2) N/A 1.9 ppb (2) N/A 40.0 ppb (31) 0.13 ppb (1) N/A 6.0 μg/m3 (25) 31.0
 
Jan. 18, 2020, 8 a.m. N/A 0.0 ppb (0) 1.8 ppb (2) N/A 1.9 ppb (2) N/A 40.0 ppb (31) 0.12 ppb (1) N/A 4.0 μg/m3 (17) 31.0
 
Jan. 18, 2020, 7 a.m. N/A 0.0 ppb (0) 1.5 ppb (1) N/A 1.5 ppb (1) N/A 41.0 ppb (32) 0.12 ppb (1) N/A 5.0 μg/m3 (21) 32.0
 
Jan. 18, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 1.0 μg/m3 (4) 31.0
 
Jan. 18, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 3.0 μg/m3 (12) 30.0
 
Jan. 18, 2020, 4 a.m. N/A 0.0 ppb (0) 1.7 ppb (2) N/A 1.7 ppb (2) N/A 35.0 ppb (27) 0.13 ppb (1) N/A 3.0 μg/m3 (12) 27.0
 
Jan. 18, 2020, 3 a.m. N/A 0.1 ppb (0) 1.9 ppb (2) N/A 1.8 ppb (2) N/A 35.0 ppb (27) 0.13 ppb (1) N/A 4.0 μg/m3 (17) 27.0
 
Jan. 18, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 18, 2020, 1 a.m. N/A 0.0 ppb (0) 2.0 ppb (2) N/A 2.0 ppb (2) N/A 31.0 ppb (24) 0.14 ppb (2) N/A 4.0 μg/m3 (17) 24.0
 
Jan. 18, 2020, midnight N/A 0.0 ppb (0) 1.9 ppb (2) N/A 1.9 ppb (2) N/A 31.0 ppb (24) 0.14 ppb (2) N/A 4.0 μg/m3 (17) 24.0
 
Jan. 17, 2020, 11 p.m. N/A 0.0 ppb (0) 1.8 ppb (2) N/A 1.8 ppb (2) N/A 30.0 ppb (23) 0.14 ppb (2) N/A 4.0 μg/m3 (17) 23.0
 
Jan. 17, 2020, 10 p.m. N/A 0.0 ppb (0) 1.7 ppb (2) N/A 1.7 ppb (2) N/A 30.0 ppb (23) 0.15 ppb (2) N/A 5.0 μg/m3 (21) 23.0
 
Jan. 17, 2020, 9 p.m. N/A 0.0 ppb (0) 2.2 ppb (2) N/A 2.1 ppb (2) N/A 30.0 ppb (23) 0.15 ppb (2) N/A 5.0 μg/m3 (21) 23.0
 
Jan. 17, 2020, 8 p.m. N/A 0.1 ppb (0) 2.4 ppb (2) N/A 2.3 ppb (2) N/A 31.0 ppb (24) 0.15 ppb (2) N/A 4.0 μg/m3 (17) 24.0
 
Jan. 17, 2020, 7 p.m. N/A 0.2 ppb (0) 2.5 ppb (2) N/A 2.3 ppb (2) N/A 30.0 ppb (23) 0.15 ppb (2) N/A 4.0 μg/m3 (17) 23.0
 
Jan. 17, 2020, 6 p.m. N/A 0.2 ppb (0) 2.5 ppb (2) N/A 2.3 ppb (2) N/A 32.0 ppb (25) 0.15 ppb (2) N/A 4.0 μg/m3 (17) 25.0
 
Jan. 17, 2020, 5 p.m. N/A 0.3 ppb (0) 2.6 ppb (2) N/A 2.3 ppb (2) N/A 32.0 ppb (25) 0.14 ppb (2) N/A 3.0 μg/m3 (12) 25.0
 
Jan. 17, 2020, 4 p.m. N/A 0.2 ppb (0) 2.5 ppb (2) N/A 2.2 ppb (2) N/A 33.0 ppb (25) 0.12 ppb (1) N/A 4.0 μg/m3 (17) 25.0
 
Jan. 17, 2020, 3 p.m. N/A 0.2 ppb (0) 2.1 ppb (2) N/A 1.9 ppb (2) N/A 35.0 ppb (27) 0.12 ppb (1) N/A 6.0 μg/m3 (25) 27.0
 
Jan. 17, 2020, 2 p.m. N/A 0.0 ppb (0) 1.7 ppb (2) N/A 1.6 ppb (1) N/A 36.0 ppb (28) 0.12 ppb (1) N/A 4.0 μg/m3 (17) 28.0
 
Jan. 17, 2020, 1 p.m. N/A 0.0 ppb (0) 1.6 ppb (1) N/A 1.6 ppb (1) N/A 37.0 ppb (28) 0.12 ppb (1) N/A 3.0 μg/m3 (12) 28.0
 
Jan. 17, 2020, noon N/A 0.0 ppb (0) 1.9 ppb (2) N/A 1.9 ppb (2) N/A 35.0 ppb (27) 0.12 ppb (1) N/A 3.0 μg/m3 (12) 27.0
 
Jan. 17, 2020, 11 a.m. N/A 0.0 ppb (0) 2.0 ppb (2) N/A 1.9 ppb (2) N/A 33.0 ppb (25) 0.12 ppb (1) N/A 4.0 μg/m3 (17) 25.0
 
Jan. 17, 2020, 10 a.m. N/A 0.0 ppb (0) 2.1 ppb (2) N/A 2.2 ppb (2) N/A 30.0 ppb (23) 0.14 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2020, 9 a.m. N/A 0.0 ppb (0) 2.3 ppb (2) N/A 2.3 ppb (2) N/A 30.0 ppb (23) 0.13 ppb (1) N/A 5.0 μg/m3 (21) 23.0
 
Jan. 17, 2020, 8 a.m. N/A 0.0 ppb (0) 2.3 ppb (2) N/A 2.3 ppb (2) N/A 31.0 ppb (24) 0.13 ppb (1) N/A 5.0 μg/m3 (21) 24.0
 
Jan. 17, 2020, 7 a.m. N/A 0.0 ppb (0) 2.2 ppb (2) N/A 2.2 ppb (2) N/A 32.0 ppb (25) 0.13 ppb (1) N/A 4.0 μg/m3 (17) 25.0
 
Jan. 17, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 4.0 μg/m3 (17) 25.0
 
Jan. 17, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 3.0 μg/m3 (12) 26.0
 
Jan. 17, 2020, 4 a.m. N/A 0.0 ppb (0) 2.4 ppb (2) N/A 2.4 ppb (2) N/A 35.0 ppb (27) 0.13 ppb (1) N/A 4.0 μg/m3 (17) 27.0
 
Jan. 17, 2020, 3 a.m. N/A 0.0 ppb (0) 3.0 ppb (3) N/A 3.0 ppb (3) N/A 34.0 ppb (26) 0.14 ppb (2) N/A 5.0 μg/m3 (21) 26.0
 
Jan. 17, 2020, 2 a.m. N/A 0.0 ppb (0) 3.7 ppb (3) N/A 3.7 ppb (3) N/A 34.0 ppb (26) 0.15 ppb (2) N/A 4.0 μg/m3 (17) 26.0
 
Jan. 17, 2020, 1 a.m. N/A 0.0 ppb (0) 2.4 ppb (2) N/A 2.4 ppb (2) N/A 36.0 ppb (28) 0.14 ppb (2) N/A 3.0 μg/m3 (12) 28.0
 
Jan. 17, 2020, midnight N/A 0.0 ppb (0) 1.9 ppb (2) N/A 1.9 ppb (2) N/A 38.0 ppb (29) 0.13 ppb (1) N/A 4.0 μg/m3 (17) 29.0
 
Jan. 16, 2020, 11 p.m. N/A 0.0 ppb (0) 1.8 ppb (2) N/A 1.8 ppb (2) N/A 39.0 ppb (30) 0.13 ppb (1) N/A 4.0 μg/m3 (17) 30.0
 
Jan. 16, 2020, 10 p.m. N/A 0.0 ppb (0) 1.5 ppb (1) N/A 1.4 ppb (1) N/A 39.0 ppb (30) 0.12 ppb (1) N/A 3.0 μg/m3 (12) 30.0
 
Jan. 16, 2020, 9 p.m. N/A 0.0 ppb (0) 1.5 ppb (1) N/A 1.5 ppb (1) N/A 38.0 ppb (29) 0.12 ppb (1) N/A 4.0 μg/m3 (17) 29.0
 
Jan. 16, 2020, 8 p.m. N/A 0.1 ppb (0) 1.9 ppb (2) N/A 1.7 ppb (2) N/A 37.0 ppb (28) 0.13 ppb (1) N/A 3.0 μg/m3 (12) 28.0
 
Jan. 16, 2020, 7 p.m. N/A 0.2 ppb (0) 2.2 ppb (2) N/A 2.0 ppb (2) N/A 36.0 ppb (28) 0.14 ppb (2) N/A 5.0 μg/m3 (21) 28.0
 
Jan. 16, 2020, 6 p.m. N/A 0.2 ppb (0) 2.2 ppb (2) N/A 2.0 ppb (2) N/A 35.0 ppb (27) 0.14 ppb (2) N/A 3.0 μg/m3 (12) 27.0
 
Jan. 16, 2020, 5 p.m. N/A 0.2 ppb (0) 2.3 ppb (2) N/A 2.0 ppb (2) N/A 33.0 ppb (25) 0.14 ppb (2) N/A 5.0 μg/m3 (21) 25.0
 
Jan. 16, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2020, 3 p.m. N/A 0.2 ppb (0) 2.9 ppb (3) N/A 2.7 ppb (3) N/A 30.0 ppb (23) 0.16 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 16, 2020, 2 p.m. N/A 0.1 ppb (0) 2.8 ppb (3) N/A 2.6 ppb (2) N/A 29.0 ppb (22) 0.16 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 16, 2020, 1 p.m. N/A 0.0 ppb (0) 2.6 ppb (2) N/A 2.5 ppb (2) N/A 30.0 ppb (23) 0.16 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 16, 2020, noon N/A 0.0 ppb (0) 2.2 ppb (2) N/A 2.3 ppb (2) N/A 30.0 ppb (23) 0.15 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
Jan. 16, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 8.0 μg/m3 (33) 33.0
 
Jan. 16, 2020, 10 a.m. N/A 0.0 ppb (0) 1.8 ppb (2) N/A 1.8 ppb (2) N/A 30.0 ppb (23) 0.15 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 16, 2020, 9 a.m. N/A 0.0 ppb (0) 1.7 ppb (2) N/A 1.7 ppb (2) N/A 30.0 ppb (23) 0.15 ppb (2) N/A 5.0 μg/m3 (21) 23.0
 
Jan. 16, 2020, 8 a.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A 1.0 ppb (1) N/A 26.0 ppb (20) 0.15 ppb (2) N/A 2.0 μg/m3 (8) 20.0
 
Jan. 16, 2020, 7 a.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A 0.9 ppb (1) N/A 27.0 ppb (21) 0.15 ppb (2) N/A 3.0 μg/m3 (12) 21.0
 
Jan. 16, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (12) 12.0
 
Jan. 16, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A N/A 4.0 μg/m3 (17) 18.0
 
Jan. 16, 2020, 4 a.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A 0.7 ppb (1) N/A 22.0 ppb (17) 0.14 ppb (2) N/A 3.0 μg/m3 (12) 17.0
 
Jan. 16, 2020, 3 a.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A 0.6 ppb (1) N/A 23.0 ppb (18) 0.13 ppb (1) N/A 3.0 μg/m3 (12) 18.0
 
Jan. 16, 2020, 2 a.m. N/A 0.0 ppb (0) 0.8 ppb (1) N/A 0.9 ppb (1) N/A 24.0 ppb (18) 0.13 ppb (1) N/A 4.0 μg/m3 (17) 18.0
 
Jan. 16, 2020, 1 a.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A 0.9 ppb (1) N/A 25.0 ppb (19) 0.13 ppb (1) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 16, 2020, midnight N/A 0.0 ppb (0) 1.0 ppb (1) N/A 1.1 ppb (1) N/A 26.0 ppb (20) 0.13 ppb (1) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 15, 2020, 11 p.m. N/A 0.0 ppb (0) 0.8 ppb (1) N/A 0.9 ppb (1) N/A 26.0 ppb (20) 0.12 ppb (1) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 15, 2020, 10 p.m. N/A 0.0 ppb (0) 0.8 ppb (1) N/A 0.9 ppb (1) N/A 27.0 ppb (21) 0.13 ppb (1) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 15, 2020, 9 p.m. N/A 0.0 ppb (0) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 29.0 ppb (22) 0.13 ppb (1) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 15, 2020, 8 p.m. N/A 0.0 ppb (0) 0.7 ppb (1) N/A 0.8 ppb (1) N/A 29.0 ppb (22) 0.13 ppb (1) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 15, 2020, 7 p.m. N/A 0.0 ppb (0) 0.5 ppb (0) N/A 0.6 ppb (1) N/A 28.0 ppb (22) 0.13 ppb (1) N/A 4.0 μg/m3 (17) 22.0
 
Jan. 15, 2020, 6 p.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A 0.5 ppb (0) N/A 28.0 ppb (22) 0.12 ppb (1) N/A 3.0 μg/m3 (12) 22.0
 
Jan. 15, 2020, 5 p.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A 0.4 ppb (0) N/A 29.0 ppb (22) 0.12 ppb (1) N/A 2.0 μg/m3 (8) 22.0
 
Jan. 15, 2020, 4 p.m. N/A 0.0 ppb (0) 0.2 ppb (0) N/A 0.3 ppb (0) N/A 30.0 ppb (23) 0.13 ppb (1) N/A 3.0 μg/m3 (12) 23.0
 
Jan. 15, 2020, 3 p.m. N/A 0.0 ppb (0) 0.2 ppb (0) N/A 0.3 ppb (0) N/A 29.0 ppb (22) 0.13 ppb (1) N/A 3.0 μg/m3 (12) 22.0
 
Jan. 15, 2020, 2 p.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A 0.3 ppb (0) N/A 29.0 ppb (22) 0.13 ppb (1) N/A 4.0 μg/m3 (17) 22.0
 
Jan. 15, 2020, 1 p.m. N/A 0.0 ppb (0) 0.2 ppb (0) N/A 0.3 ppb (0) N/A 31.0 ppb (24) 0.13 ppb (1) N/A 2.0 μg/m3 (8) 24.0
 
Jan. 15, 2020, noon N/A 0.0 ppb (0) 0.3 ppb (0) N/A 0.3 ppb (0) N/A 28.0 ppb (22) 0.13 ppb (1) N/A 3.0 μg/m3 (12) 22.0
 
Jan. 15, 2020, 11 a.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A 0.4 ppb (0) N/A 35.0 ppb (27) 0.12 ppb (1) N/A 3.0 μg/m3 (12) 27.0
 
Jan. 15, 2020, 10 a.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A 0.4 ppb (0) N/A 35.0 ppb (27) 0.11 ppb (1) N/A 4.0 μg/m3 (17) 27.0
 
Jan. 15, 2020, 9 a.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A 0.4 ppb (0) N/A 32.0 ppb (25) 0.11 ppb (1) N/A 1.0 μg/m3 (4) 25.0
 
Jan. 14, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 3.0 μg/m3 (12) 27.0
 
Jan. 14, 2020, 10 p.m. N/A 0.0 ppb (0) 0.5 ppb (0) N/A 0.6 ppb (1) N/A 34.0 ppb (26) 0.11 ppb (1) N/A 3.0 μg/m3 (12) 26.0
 
Jan. 14, 2020, 9 p.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A 0.6 ppb (1) N/A 32.0 ppb (25) 0.11 ppb (1) N/A 2.0 μg/m3 (8) 25.0
 
Jan. 14, 2020, 8 p.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A 0.6 ppb (1) N/A 32.0 ppb (25) 0.11 ppb (1) N/A 3.0 μg/m3 (12) 25.0
 
Jan. 14, 2020, 7 p.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A 0.6 ppb (1) N/A 33.0 ppb (25) 0.11 ppb (1) N/A 3.0 μg/m3 (12) 25.0
 
Jan. 14, 2020, 6 p.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A 0.6 ppb (1) N/A 36.0 ppb (28) 0.11 ppb (1) N/A 4.0 μg/m3 (17) 28.0
 
Jan. 14, 2020, 5 p.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A 0.6 ppb (1) N/A 37.0 ppb (28) 0.11 ppb (1) N/A 2.0 μg/m3 (8) 28.0
 
Jan. 14, 2020, 4 p.m. N/A 0.0 ppb (0) 0.5 ppb (0) N/A 0.5 ppb (0) N/A 38.0 ppb (29) 0.12 ppb (1) N/A 2.0 μg/m3 (8) 29.0
 
Jan. 14, 2020, 3 p.m. N/A 0.0 ppb (0) 0.5 ppb (0) N/A 0.5 ppb (0) N/A 39.0 ppb (30) 0.12 ppb (1) N/A 4.0 μg/m3 (17) 30.0
 
Jan. 14, 2020, 2 p.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A 0.6 ppb (1) N/A 40.0 ppb (31) 0.12 ppb (1) N/A 2.0 μg/m3 (8) 31.0
 
Jan. 14, 2020, 1 p.m. N/A 0.0 ppb (0) 1.1 ppb (1) N/A 1.1 ppb (1) N/A 37.0 ppb (28) 0.12 ppb (1) N/A 2.0 μg/m3 (8) 28.0
 
Jan. 14, 2020, noon N/A 0.0 ppb (0) 0.8 ppb (1) N/A 0.9 ppb (1) N/A 38.0 ppb (29) 0.11 ppb (1) N/A 5.0 μg/m3 (21) 29.0
 
Jan. 14, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 5.0 μg/m3 (21) 24.0
 
Jan. 14, 2020, 10 a.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A 0.5 ppb (0) N/A 32.0 ppb (25) 0.11 ppb (1) N/A 4.0 μg/m3 (17) 25.0
 
Jan. 14, 2020, 9 a.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A 0.6 ppb (1) N/A 32.0 ppb (25) 0.11 ppb (1) N/A 2.0 μg/m3 (8) 25.0
 
Jan. 14, 2020, 8 a.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A 0.6 ppb (1) N/A 34.0 ppb (26) 0.11 ppb (1) N/A 2.0 μg/m3 (8) 26.0
 
Jan. 14, 2020, 7 a.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A 0.7 ppb (1) N/A 30.0 ppb (23) 0.12 ppb (1) N/A 2.0 μg/m3 (8) 23.0
 
Jan. 14, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 1.0 μg/m3 (4) 21.0
 
Jan. 14, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 14, 2020, 4 a.m. N/A 0.0 ppb (0) 0.7 ppb (1) N/A 0.7 ppb (1) N/A 26.0 ppb (20) 0.13 ppb (1) N/A 5.0 μg/m3 (21) 21.0
 
Jan. 14, 2020, 3 a.m. N/A 0.0 ppb (0) 0.8 ppb (1) N/A 0.8 ppb (1) N/A 28.0 ppb (22) 0.13 ppb (1) N/A 4.0 μg/m3 (17) 22.0
 
Jan. 14, 2020, 2 a.m. N/A 0.0 ppb (0) 1.1 ppb (1) N/A 1.1 ppb (1) N/A 29.0 ppb (22) 0.14 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 14, 2020, 1 a.m. N/A 0.0 ppb (0) 1.3 ppb (1) N/A 1.3 ppb (1) N/A 31.0 ppb (24) 0.14 ppb (2) N/A 5.0 μg/m3 (21) 24.0
 
Jan. 14, 2020, midnight N/A 0.0 ppb (0) 1.3 ppb (1) N/A 1.3 ppb (1) N/A 32.0 ppb (25) 0.14 ppb (2) N/A 5.0 μg/m3 (21) 25.0
 
Jan. 13, 2020, 11 p.m. N/A 0.0 ppb (0) 1.1 ppb (1) N/A 1.1 ppb (1) N/A 33.0 ppb (25) 0.13 ppb (1) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 13, 2020, 10 p.m. N/A 0.0 ppb (0) 1.3 ppb (1) N/A 1.3 ppb (1) N/A 32.0 ppb (25) 0.15 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 13, 2020, 9 p.m. N/A 0.0 ppb (0) 1.4 ppb (1) N/A 1.3 ppb (1) N/A 30.0 ppb (23) 0.16 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 13, 2020, 8 p.m. N/A 0.0 ppb (0) 1.5 ppb (1) N/A 1.5 ppb (1) N/A 28.0 ppb (22) 0.16 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Jan. 13, 2020, 7 p.m. N/A 0.0 ppb (0) 1.5 ppb (1) N/A 1.4 ppb (1) N/A 30.0 ppb (23) 0.16 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 13, 2020, 6 p.m. N/A 0.0 ppb (0) 1.4 ppb (1) N/A 1.3 ppb (1) N/A 30.0 ppb (23) 0.15 ppb (2) N/A 5.0 μg/m3 (21) 23.0
 
Jan. 13, 2020, 5 p.m. N/A 0.1 ppb (0) 1.3 ppb (1) N/A 1.2 ppb (1) N/A 29.0 ppb (22) 0.14 ppb (2) N/A 5.0 μg/m3 (21) 22.0
 
Jan. 13, 2020, 4 p.m. N/A 0.0 ppb (0) 1.3 ppb (1) N/A 1.2 ppb (1) N/A 31.0 ppb (24) 0.14 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 13, 2020, 3 p.m. N/A 0.0 ppb (0) 1.3 ppb (1) N/A 1.2 ppb (1) N/A 33.0 ppb (25) 0.14 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
Jan. 13, 2020, 2 p.m. N/A 0.0 ppb (0) 1.3 ppb (1) N/A 1.3 ppb (1) N/A 36.0 ppb (28) 0.14 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
Jan. 13, 2020, 1 p.m. N/A 0.0 ppb (0) 1.2 ppb (1) N/A 1.2 ppb (1) N/A 36.0 ppb (28) 0.14 ppb (2) N/A 6.0 μg/m3 (25) 28.0
 
Jan. 13, 2020, noon N/A 0.0 ppb (0) 1.2 ppb (1) N/A 1.2 ppb (1) N/A 38.0 ppb (29) 0.14 ppb (2) N/A 6.0 μg/m3 (25) 29.0
 
Jan. 13, 2020, 11 a.m. N/A 0.0 ppb (0) 1.1 ppb (1) N/A 1.1 ppb (1) N/A 38.0 ppb (29) 0.13 ppb (1) N/A 7.0 μg/m3 (29) 29.0