AQSQID: 470090101

Site Name: Look Rock - Gsmnp

Location: Maryville (Look Rock Tower), TN

Reporting: True, Located: True

Current AQI: 54.0

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
April 7, 2020, 11 a.m. N/A 0.1 ppb (0) 3.7 ppb (3) N/A 3.6 ppb (3) N/A 48.0 ppb (37) 0.2 ppb (2) N/A 14.0 μg/m3 (54) 54.0
 
April 7, 2020, 10 a.m. N/A 0.1 ppb (0) 3.9 ppb (4) N/A 3.8 ppb (4) N/A 49.0 ppb (38) 0.2 ppb (2) N/A 13.0 μg/m3 (52) 52.0
 
April 7, 2020, 9 a.m. N/A 0.1 ppb (0) 4.1 ppb (4) N/A 4.0 ppb (4) N/A 50.0 ppb (38) 0.19 ppb (2) N/A 12.0 μg/m3 (50) 50.0
 
April 7, 2020, 8 a.m. N/A 0.0 ppb (0) 4.0 ppb (4) N/A 3.9 ppb (4) N/A 52.0 ppb (40) 0.18 ppb (2) N/A 12.0 μg/m3 (50) 50.0
 
April 7, 2020, 7 a.m. N/A 0.1 ppb (0) 4.0 ppb (4) N/A 3.9 ppb (4) N/A 52.0 ppb (40) 0.17 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
April 7, 2020, 6 a.m. N/A 0.0 ppb (0) 3.5 ppb (3) N/A 3.4 ppb (3) N/A 53.0 ppb (41) 0.16 ppb (2) N/A 9.0 μg/m3 (38) 41.0
 
April 7, 2020, 5 a.m. N/A 0.0 ppb (0) 3.6 ppb (3) N/A 3.5 ppb (3) N/A 52.0 ppb (40) 0.17 ppb (2) N/A 9.0 μg/m3 (38) 40.0
 
April 7, 2020, 4 a.m. N/A 0.1 ppb (0) 3.6 ppb (3) N/A 3.5 ppb (3) N/A 52.0 ppb (40) 0.17 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
April 7, 2020, 3 a.m. N/A 0.1 ppb (0) 4.1 ppb (4) N/A 4.0 ppb (4) N/A 55.0 ppb (42) 0.17 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
April 7, 2020, 2 a.m. N/A 0.0 ppb (0) 4.2 ppb (4) N/A 4.1 ppb (4) N/A 56.0 ppb (43) 0.16 ppb (2) N/A 11.0 μg/m3 (46) 46.0
 
April 7, 2020, 1 a.m. N/A 0.0 ppb (0) 4.6 ppb (4) N/A 4.5 ppb (4) N/A 56.0 ppb (43) 0.17 ppb (2) N/A 10.0 μg/m3 (42) 43.0
 
April 7, 2020, midnight N/A 0.1 ppb (0) 4.6 ppb (4) N/A 4.5 ppb (4) N/A 55.0 ppb (42) 0.17 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
April 6, 2020, 11 p.m. N/A 0.1 ppb (0) 4.6 ppb (4) N/A 4.5 ppb (4) N/A 52.0 ppb (40) 0.17 ppb (2) N/A 9.0 μg/m3 (38) 40.0
 
April 6, 2020, 10 p.m. N/A 0.1 ppb (0) 4.9 ppb (5) N/A 4.8 ppb (4) N/A 53.0 ppb (41) 0.17 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
April 6, 2020, 9 p.m. N/A 0.1 ppb (0) 4.7 ppb (4) N/A 4.6 ppb (4) N/A 54.0 ppb (42) 0.17 ppb (2) N/A 12.0 μg/m3 (50) 50.0
 
April 6, 2020, 8 p.m. N/A 0.1 ppb (0) 4.2 ppb (4) N/A 4.1 ppb (4) N/A 55.0 ppb (42) 0.17 ppb (2) N/A 13.0 μg/m3 (52) 52.0
 
April 6, 2020, 7 p.m. N/A 0.1 ppb (0) 4.3 ppb (4) N/A 4.2 ppb (4) N/A 54.0 ppb (42) 0.16 ppb (2) N/A 12.0 μg/m3 (50) 50.0
 
April 6, 2020, 6 p.m. N/A 0.1 ppb (0) 3.5 ppb (3) N/A 3.3 ppb (3) N/A 50.0 ppb (38) 0.14 ppb (2) N/A 6.0 μg/m3 (25) 38.0
 
April 6, 2020, 5 p.m. N/A 0.1 ppb (0) 3.6 ppb (3) N/A 3.5 ppb (3) N/A 49.0 ppb (38) 0.14 ppb (2) N/A 6.0 μg/m3 (25) 38.0
 
April 6, 2020, 4 p.m. N/A 0.1 ppb (0) 3.8 ppb (4) N/A 3.7 ppb (3) N/A 49.0 ppb (38) 0.15 ppb (2) N/A 7.0 μg/m3 (29) 38.0
 
April 6, 2020, 3 p.m. N/A 0.2 ppb (0) 3.8 ppb (4) N/A 3.7 ppb (3) N/A 48.0 ppb (37) 0.16 ppb (2) N/A 8.0 μg/m3 (33) 37.0
 
April 6, 2020, 2 p.m. N/A 0.2 ppb (0) 3.5 ppb (3) N/A 3.4 ppb (3) N/A 41.0 ppb (32) 0.17 ppb (2) N/A 13.0 μg/m3 (52) 52.0
 
April 6, 2020, 1 p.m. N/A 0.2 ppb (0) 5.0 ppb (5) N/A 4.8 ppb (4) N/A 48.0 ppb (37) 0.18 ppb (2) N/A 14.0 μg/m3 (54) 54.0
 
April 6, 2020, noon N/A 0.1 ppb (0) 5.0 ppb (5) N/A 4.9 ppb (5) N/A 50.0 ppb (38) 0.19 ppb (2) N/A 13.0 μg/m3 (52) 52.0
 
April 6, 2020, 11 a.m. N/A 0.1 ppb (0) 4.9 ppb (5) N/A 4.7 ppb (4) N/A 51.0 ppb (39) 0.19 ppb (2) N/A 13.0 μg/m3 (52) 52.0
 
April 6, 2020, 10 a.m. N/A 0.1 ppb (0) 4.6 ppb (4) N/A 4.5 ppb (4) N/A 51.0 ppb (39) 0.18 ppb (2) N/A 12.0 μg/m3 (50) 50.0
 
April 6, 2020, 9 a.m. N/A 0.1 ppb (0) 4.7 ppb (4) N/A 4.6 ppb (4) N/A 51.0 ppb (39) 0.19 ppb (2) N/A 13.0 μg/m3 (52) 52.0
 
April 6, 2020, 8 a.m. N/A 0.1 ppb (0) 4.5 ppb (4) N/A 4.4 ppb (4) N/A 51.0 ppb (39) 0.18 ppb (2) N/A 12.0 μg/m3 (50) 50.0
 
April 6, 2020, 7 a.m. N/A 0.1 ppb (0) 4.9 ppb (5) N/A 4.8 ppb (4) N/A 51.0 ppb (39) 0.2 ppb (2) N/A 12.0 μg/m3 (50) 50.0
 
April 6, 2020, 6 a.m. N/A 0.1 ppb (0) 4.4 ppb (4) N/A 4.3 ppb (4) N/A 51.0 ppb (39) 0.19 ppb (2) N/A 12.0 μg/m3 (50) 50.0
 
April 6, 2020, 5 a.m. N/A 0.1 ppb (0) 5.0 ppb (5) N/A 4.9 ppb (5) N/A 51.0 ppb (39) 0.2 ppb (2) N/A 12.0 μg/m3 (50) 50.0
 
April 6, 2020, 4 a.m. N/A 0.1 ppb (0) 5.0 ppb (5) N/A 4.9 ppb (5) N/A 50.0 ppb (38) 0.2 ppb (2) N/A 13.0 μg/m3 (52) 52.0
 
April 6, 2020, 3 a.m. N/A 0.1 ppb (0) 4.6 ppb (4) N/A 4.5 ppb (4) N/A 51.0 ppb (39) 0.21 ppb (2) N/A 14.0 μg/m3 (54) 54.0
 
April 6, 2020, 2 a.m. N/A 0.0 ppb (0) 4.3 ppb (4) N/A 4.2 ppb (4) N/A 54.0 ppb (42) 0.19 ppb (2) N/A 13.0 μg/m3 (52) 52.0
 
April 6, 2020, 1 a.m. N/A 0.0 ppb (0) 4.9 ppb (5) N/A 4.8 ppb (4) N/A 56.0 ppb (43) 0.18 ppb (2) N/A 13.0 μg/m3 (52) 52.0
 
April 6, 2020, midnight N/A 0.1 ppb (0) 5.0 ppb (5) N/A 4.9 ppb (5) N/A 56.0 ppb (43) 0.17 ppb (2) N/A 10.0 μg/m3 (42) 43.0
 
April 5, 2020, 11 p.m. N/A 0.1 ppb (0) 5.1 ppb (5) N/A 5.0 ppb (5) N/A 56.0 ppb (43) 0.16 ppb (2) N/A 9.0 μg/m3 (38) 43.0
 
April 5, 2020, 10 p.m. N/A 0.1 ppb (0) 5.3 ppb (5) N/A 5.1 ppb (5) N/A 55.0 ppb (42) 0.16 ppb (2) N/A 9.0 μg/m3 (38) 42.0
 
April 5, 2020, 9 p.m. N/A 0.1 ppb (0) 5.2 ppb (5) N/A 5.1 ppb (5) N/A 57.0 ppb (44) 0.16 ppb (2) N/A 8.0 μg/m3 (33) 44.0
 
April 5, 2020, 8 p.m. N/A 0.1 ppb (0) 4.6 ppb (4) N/A 4.5 ppb (4) N/A 57.0 ppb (44) 0.17 ppb (2) N/A 9.0 μg/m3 (38) 44.0
 
April 5, 2020, 7 p.m. N/A 0.2 ppb (0) 4.7 ppb (4) N/A 4.5 ppb (4) N/A 54.0 ppb (42) 0.18 ppb (2) N/A 11.0 μg/m3 (46) 46.0
 
April 5, 2020, 6 p.m. N/A 0.1 ppb (0) 4.0 ppb (4) N/A 3.9 ppb (4) N/A 54.0 ppb (42) 0.17 ppb (2) N/A 7.0 μg/m3 (29) 42.0
 
April 5, 2020, 5 p.m. N/A 0.2 ppb (0) 3.9 ppb (4) N/A 3.7 ppb (3) N/A 52.0 ppb (40) 0.2 ppb (2) N/A 11.0 μg/m3 (46) 46.0
 
April 5, 2020, 4 p.m. N/A 0.2 ppb (0) 4.0 ppb (4) N/A 3.8 ppb (4) N/A 49.0 ppb (38) 0.22 ppb (2) N/A 16.0 μg/m3 (59) 59.0
 
April 5, 2020, 3 p.m. N/A 0.2 ppb (0) 3.6 ppb (3) N/A 3.4 ppb (3) N/A 44.0 ppb (34) 0.2 ppb (2) N/A 13.0 μg/m3 (52) 52.0
 
April 5, 2020, 2 p.m. N/A 0.2 ppb (0) 3.8 ppb (4) N/A 3.6 ppb (3) N/A 44.0 ppb (34) 0.19 ppb (2) N/A 15.0 μg/m3 (56) 56.0
 
April 5, 2020, 1 p.m. N/A 0.2 ppb (0) 4.3 ppb (4) N/A 4.1 ppb (4) N/A 49.0 ppb (38) 0.18 ppb (2) N/A 11.0 μg/m3 (46) 46.0
 
April 5, 2020, noon N/A 0.1 ppb (0) 3.5 ppb (3) N/A 3.4 ppb (3) N/A 52.0 ppb (40) 0.15 ppb (2) N/A 10.0 μg/m3 (42) 42.0
 
April 5, 2020, 11 a.m. N/A 0.0 ppb (0) 3.5 ppb (3) N/A 3.4 ppb (3) N/A 53.0 ppb (41) 0.16 ppb (2) N/A 9.0 μg/m3 (38) 41.0
 
April 5, 2020, 10 a.m. N/A 0.0 ppb (0) 3.8 ppb (4) N/A 3.7 ppb (3) N/A 53.0 ppb (41) 0.16 ppb (2) N/A 8.0 μg/m3 (33) 41.0
 
April 5, 2020, 9 a.m. N/A 0.1 ppb (0) 4.8 ppb (4) N/A 4.6 ppb (4) N/A 52.0 ppb (40) 0.17 ppb (2) N/A 9.0 μg/m3 (38) 40.0
 
April 5, 2020, 8 a.m. N/A 0.1 ppb (0) 3.9 ppb (4) N/A 3.8 ppb (4) N/A 53.0 ppb (41) 0.17 ppb (2) N/A 9.0 μg/m3 (38) 41.0
 
April 5, 2020, 7 a.m. N/A 0.1 ppb (0) 4.1 ppb (4) N/A 3.9 ppb (4) N/A 54.0 ppb (42) 0.16 ppb (2) N/A 8.0 μg/m3 (33) 42.0
 
April 5, 2020, 6 a.m. N/A 0.1 ppb (0) 3.9 ppb (4) N/A 3.8 ppb (4) N/A 55.0 ppb (42) 0.16 ppb (2) N/A 9.0 μg/m3 (38) 42.0
 
April 5, 2020, 5 a.m. N/A 0.1 ppb (0) 3.6 ppb (3) N/A 3.4 ppb (3) N/A 53.0 ppb (41) 0.15 ppb (2) N/A 9.0 μg/m3 (38) 41.0
 
April 5, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 6.0 μg/m3 (25) 42.0
 
April 5, 2020, 3 a.m. N/A 0.1 ppb (0) 3.0 ppb (3) N/A 2.9 ppb (3) N/A 54.0 ppb (42) 0.14 ppb (2) N/A 6.0 μg/m3 (25) 42.0
 
April 5, 2020, 2 a.m. N/A 0.1 ppb (0) 3.1 ppb (3) N/A 3.0 ppb (3) N/A 55.0 ppb (42) 0.14 ppb (2) N/A 7.0 μg/m3 (29) 42.0
 
April 5, 2020, 1 a.m. N/A 0.1 ppb (0) 3.5 ppb (3) N/A 3.4 ppb (3) N/A 55.0 ppb (42) 0.15 ppb (2) N/A 8.0 μg/m3 (33) 42.0
 
April 5, 2020, midnight N/A 0.0 ppb (0) 3.5 ppb (3) N/A 3.4 ppb (3) N/A 55.0 ppb (42) 0.15 ppb (2) N/A 7.0 μg/m3 (29) 42.0
 
April 4, 2020, 11 p.m. N/A 0.1 ppb (0) 3.6 ppb (3) N/A 3.5 ppb (3) N/A 56.0 ppb (43) 0.14 ppb (2) N/A 7.0 μg/m3 (29) 43.0
 
April 4, 2020, 10 p.m. N/A 0.1 ppb (0) 3.7 ppb (3) N/A 3.6 ppb (3) N/A 56.0 ppb (43) 0.14 ppb (2) N/A 7.0 μg/m3 (29) 43.0
 
April 4, 2020, 9 p.m. N/A 0.2 ppb (0) 3.5 ppb (3) N/A 3.4 ppb (3) N/A 55.0 ppb (42) 0.14 ppb (2) N/A 6.0 μg/m3 (25) 42.0
 
April 4, 2020, 8 p.m. N/A 0.2 ppb (0) 3.2 ppb (3) N/A 3.1 ppb (3) N/A 53.0 ppb (41) 0.14 ppb (2) N/A 6.0 μg/m3 (25) 41.0
 
April 4, 2020, 7 p.m. N/A 0.2 ppb (0) 3.2 ppb (3) N/A 3.0 ppb (3) N/A 52.0 ppb (40) 0.15 ppb (2) N/A 5.0 μg/m3 (21) 40.0
 
April 4, 2020, 6 p.m. N/A 0.2 ppb (0) 3.1 ppb (3) N/A 3.0 ppb (3) N/A 50.0 ppb (38) 0.16 ppb (2) N/A 11.0 μg/m3 (46) 46.0
 
April 4, 2020, 5 p.m. N/A 0.2 ppb (0) 3.0 ppb (3) N/A 2.9 ppb (3) N/A 47.0 ppb (36) 0.17 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
April 4, 2020, 4 p.m. N/A 0.2 ppb (0) 2.8 ppb (3) N/A 2.6 ppb (2) N/A 45.0 ppb (35) 0.17 ppb (2) N/A 7.0 μg/m3 (29) 35.0
 
April 4, 2020, 3 p.m. N/A 0.2 ppb (0) 2.7 ppb (3) N/A 2.5 ppb (2) N/A 41.0 ppb (32) 0.17 ppb (2) N/A 12.0 μg/m3 (50) 50.0
 
April 4, 2020, 2 p.m. N/A 0.1 ppb (0) 2.5 ppb (2) N/A 2.4 ppb (2) N/A 48.0 ppb (37) 0.14 ppb (2) N/A 11.0 μg/m3 (46) 46.0
 
April 4, 2020, 1 p.m. N/A 0.1 ppb (0) 2.3 ppb (2) N/A 2.2 ppb (2) N/A 50.0 ppb (38) 0.16 ppb (2) N/A 7.0 μg/m3 (29) 38.0
 
April 4, 2020, noon N/A 0.1 ppb (0) 2.2 ppb (2) N/A 2.1 ppb (2) N/A 50.0 ppb (38) 0.16 ppb (2) N/A 8.0 μg/m3 (33) 38.0
 
April 4, 2020, 11 a.m. N/A 0.0 ppb (0) 2.2 ppb (2) N/A 2.1 ppb (2) N/A 52.0 ppb (40) 0.16 ppb (2) N/A 8.0 μg/m3 (33) 40.0
 
April 4, 2020, 10 a.m. N/A 0.1 ppb (0) 2.3 ppb (2) N/A 2.2 ppb (2) N/A 52.0 ppb (40) 0.16 ppb (2) N/A 6.0 μg/m3 (25) 40.0
 
April 4, 2020, 9 a.m. N/A 0.1 ppb (0) 2.3 ppb (2) N/A 2.2 ppb (2) N/A 53.0 ppb (41) 0.16 ppb (2) N/A 7.0 μg/m3 (29) 41.0
 
April 4, 2020, 8 a.m. N/A 0.1 ppb (0) 2.2 ppb (2) N/A 2.0 ppb (2) N/A 52.0 ppb (40) 0.15 ppb (2) N/A 7.0 μg/m3 (29) 40.0
 
April 4, 2020, 7 a.m. N/A 0.1 ppb (0) 2.3 ppb (2) N/A 2.1 ppb (2) N/A 53.0 ppb (41) 0.15 ppb (2) N/A 5.0 μg/m3 (21) 41.0
 
April 4, 2020, 6 a.m. N/A 0.1 ppb (0) 2.2 ppb (2) N/A 2.1 ppb (2) N/A 53.0 ppb (41) 0.14 ppb (2) N/A 6.0 μg/m3 (25) 41.0
 
April 4, 2020, 5 a.m. N/A 0.0 ppb (0) 2.1 ppb (2) N/A 2.0 ppb (2) N/A 55.0 ppb (42) 0.14 ppb (2) N/A 4.0 μg/m3 (17) 42.0
 
April 4, 2020, 4 a.m. N/A 0.1 ppb (0) 2.5 ppb (2) N/A 2.4 ppb (2) N/A 55.0 ppb (42) 0.15 ppb (2) N/A 6.0 μg/m3 (25) 42.0
 
April 4, 2020, 3 a.m. N/A 0.1 ppb (0) 2.6 ppb (2) N/A 2.5 ppb (2) N/A 55.0 ppb (42) 0.15 ppb (2) N/A 5.0 μg/m3 (21) 42.0
 
April 4, 2020, 2 a.m. N/A 0.0 ppb (0) 2.7 ppb (3) N/A 2.6 ppb (2) N/A 54.0 ppb (42) 0.16 ppb (2) N/A 8.0 μg/m3 (33) 42.0
 
April 4, 2020, 1 a.m. N/A 0.1 ppb (0) 2.8 ppb (3) N/A 2.7 ppb (3) N/A 54.0 ppb (42) 0.17 ppb (2) N/A 7.0 μg/m3 (29) 42.0
 
April 4, 2020, midnight N/A 0.1 ppb (0) 2.4 ppb (2) N/A 2.3 ppb (2) N/A 56.0 ppb (43) 0.16 ppb (2) N/A 6.0 μg/m3 (25) 43.0
 
April 3, 2020, 11 p.m. N/A 0.1 ppb (0) 2.8 ppb (3) N/A 2.8 ppb (3) N/A 56.0 ppb (43) 0.17 ppb (2) N/A 7.0 μg/m3 (29) 43.0
 
April 3, 2020, 10 p.m. N/A 0.1 ppb (0) 2.6 ppb (2) N/A 2.4 ppb (2) N/A 56.0 ppb (43) 0.16 ppb (2) N/A 5.0 μg/m3 (21) 43.0
 
April 3, 2020, 9 p.m. N/A 0.2 ppb (0) 2.7 ppb (3) N/A 2.6 ppb (2) N/A 56.0 ppb (43) 0.16 ppb (2) N/A 4.0 μg/m3 (17) 43.0
 
April 3, 2020, 8 p.m. N/A 0.2 ppb (0) 2.7 ppb (3) N/A 2.5 ppb (2) N/A 55.0 ppb (42) 0.16 ppb (2) N/A 7.0 μg/m3 (29) 42.0
 
April 3, 2020, 7 p.m. N/A 0.2 ppb (0) 2.6 ppb (2) N/A 2.4 ppb (2) N/A 53.0 ppb (41) 0.17 ppb (2) N/A 3.0 μg/m3 (12) 41.0
 
April 3, 2020, 6 p.m. N/A 0.2 ppb (0) 2.9 ppb (3) N/A 2.7 ppb (3) N/A 50.0 ppb (38) 0.18 ppb (2) N/A 4.0 μg/m3 (17) 38.0
 
April 3, 2020, 5 p.m. N/A 0.2 ppb (0) 2.8 ppb (3) N/A 2.6 ppb (2) N/A 45.0 ppb (35) 0.18 ppb (2) N/A 6.0 μg/m3 (25) 35.0
 
April 3, 2020, 4 p.m. N/A 0.2 ppb (0) 2.3 ppb (2) N/A 2.2 ppb (2) N/A 41.0 ppb (32) 0.18 ppb (2) N/A 6.0 μg/m3 (25) 32.0
 
April 3, 2020, 3 p.m. N/A 0.2 ppb (0) 2.0 ppb (2) N/A 1.9 ppb (2) N/A 40.0 ppb (31) 0.18 ppb (2) N/A 6.0 μg/m3 (25) 31.0
 
April 3, 2020, 2 p.m. N/A 0.2 ppb (0) 1.8 ppb (2) N/A 1.6 ppb (1) N/A 36.0 ppb (28) 0.17 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
April 3, 2020, 1 p.m. N/A 0.1 ppb (0) 2.0 ppb (2) N/A 1.9 ppb (2) N/A 41.0 ppb (32) 0.16 ppb (2) N/A 6.0 μg/m3 (25) 32.0
 
April 3, 2020, noon N/A 0.1 ppb (0) 1.7 ppb (2) N/A 1.6 ppb (1) N/A 41.0 ppb (32) 0.15 ppb (2) N/A 5.0 μg/m3 (21) 32.0
 
April 3, 2020, 11 a.m. N/A 0.1 ppb (0) 1.6 ppb (1) N/A 1.5 ppb (1) N/A 41.0 ppb (32) 0.17 ppb (2) N/A 5.0 μg/m3 (21) 32.0
 
April 3, 2020, 10 a.m. N/A 0.1 ppb (0) 1.6 ppb (1) N/A 1.5 ppb (1) N/A 42.0 ppb (32) 0.17 ppb (2) N/A 5.0 μg/m3 (21) 32.0
 
April 3, 2020, 9 a.m. N/A 0.1 ppb (0) 1.7 ppb (2) N/A 1.6 ppb (1) N/A 42.0 ppb (32) 0.17 ppb (2) N/A 4.0 μg/m3 (17) 32.0
 
April 3, 2020, 8 a.m. N/A 0.0 ppb (0) 1.8 ppb (2) N/A 1.6 ppb (1) N/A 43.0 ppb (33) 0.16 ppb (2) N/A 4.0 μg/m3 (17) 33.0
 
April 3, 2020, 7 a.m. N/A 0.1 ppb (0) 2.0 ppb (2) N/A 1.9 ppb (2) N/A 43.0 ppb (33) 0.16 ppb (2) N/A 4.0 μg/m3 (17) 33.0
 
April 3, 2020, 6 a.m. N/A 0.1 ppb (0) 2.3 ppb (2) N/A 2.2 ppb (2) N/A 43.0 ppb (33) 0.16 ppb (2) N/A 5.0 μg/m3 (21) 33.0
 
April 3, 2020, 5 a.m. N/A 0.0 ppb (0) 2.7 ppb (3) N/A 2.6 ppb (2) N/A 44.0 ppb (34) 0.17 ppb (2) N/A 4.0 μg/m3 (17) 34.0
 
April 3, 2020, 4 a.m. N/A 0.1 ppb (0) 2.2 ppb (2) N/A 2.1 ppb (2) N/A 45.0 ppb (35) 0.16 ppb (2) N/A 5.0 μg/m3 (21) 35.0
 
April 3, 2020, 3 a.m. N/A 0.1 ppb (0) 2.1 ppb (2) N/A 1.9 ppb (2) N/A 45.0 ppb (35) 0.17 ppb (2) N/A 4.0 μg/m3 (17) 35.0
 
April 3, 2020, 2 a.m. N/A 0.1 ppb (0) 2.3 ppb (2) N/A 2.2 ppb (2) N/A 45.0 ppb (35) 0.17 ppb (2) N/A 4.0 μg/m3 (17) 35.0
 
April 3, 2020, 1 a.m. N/A 0.1 ppb (0) 2.4 ppb (2) N/A 2.3 ppb (2) N/A 46.0 ppb (35) 0.17 ppb (2) N/A 6.0 μg/m3 (25) 35.0
 
April 3, 2020, midnight N/A 0.0 ppb (0) 2.7 ppb (3) N/A 2.6 ppb (2) N/A 46.0 ppb (35) 0.17 ppb (2) N/A 4.0 μg/m3 (17) 35.0
 
April 2, 2020, 11 p.m. N/A 0.1 ppb (0) 2.6 ppb (2) N/A 2.5 ppb (2) N/A 46.0 ppb (35) 0.17 ppb (2) N/A 5.0 μg/m3 (21) 35.0
 
April 2, 2020, 10 p.m. N/A 0.2 ppb (0) 2.4 ppb (2) N/A 2.3 ppb (2) N/A 46.0 ppb (35) 0.17 ppb (2) N/A 4.0 μg/m3 (17) 35.0
 
April 2, 2020, 9 p.m. N/A 0.2 ppb (0) 2.3 ppb (2) N/A 2.1 ppb (2) N/A 45.0 ppb (35) 0.17 ppb (2) N/A 5.0 μg/m3 (21) 35.0
 
April 2, 2020, 8 p.m. N/A 0.2 ppb (0) 2.1 ppb (2) N/A 1.9 ppb (2) N/A 44.0 ppb (34) 0.16 ppb (2) N/A 5.0 μg/m3 (21) 34.0
 
April 2, 2020, 7 p.m. N/A 0.2 ppb (0) 2.0 ppb (2) N/A 1.8 ppb (2) N/A 42.0 ppb (32) 0.16 ppb (2) N/A 4.0 μg/m3 (17) 32.0
 
April 2, 2020, 6 p.m. N/A 0.2 ppb (0) 2.1 ppb (2) N/A 1.9 ppb (2) N/A 41.0 ppb (32) 0.17 ppb (2) N/A 5.0 μg/m3 (21) 32.0
 
April 2, 2020, 5 p.m. N/A 0.2 ppb (0) 2.2 ppb (2) N/A 2.0 ppb (2) N/A 40.0 ppb (31) 0.17 ppb (2) N/A 4.0 μg/m3 (17) 31.0
 
April 2, 2020, 4 p.m. N/A 0.2 ppb (0) 1.9 ppb (2) N/A 1.7 ppb (2) N/A 38.0 ppb (29) 0.17 ppb (2) N/A 3.0 μg/m3 (12) 29.0
 
April 2, 2020, 3 p.m. N/A 0.2 ppb (0) 2.0 ppb (2) N/A 1.8 ppb (2) N/A 35.0 ppb (27) 0.16 ppb (2) N/A 4.0 μg/m3 (17) 27.0
 
April 2, 2020, 2 p.m. N/A 0.2 ppb (0) 2.0 ppb (2) N/A 1.8 ppb (2) N/A 35.0 ppb (27) 0.15 ppb (2) N/A 6.0 μg/m3 (25) 27.0
 
April 2, 2020, 1 p.m. N/A 0.2 ppb (0) 2.8 ppb (3) N/A 2.5 ppb (2) N/A 34.0 ppb (26) 0.17 ppb (2) N/A 5.0 μg/m3 (21) 26.0
 
April 2, 2020, noon N/A 0.2 ppb (0) 2.9 ppb (3) N/A 2.7 ppb (3) N/A 31.0 ppb (24) 0.17 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
April 2, 2020, 11 a.m. N/A 0.1 ppb (0) 2.8 ppb (3) N/A 2.7 ppb (3) N/A 32.0 ppb (25) 0.17 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
April 2, 2020, 10 a.m. N/A 0.0 ppb (0) 2.8 ppb (3) N/A 2.7 ppb (3) N/A 32.0 ppb (25) 0.17 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
April 2, 2020, 9 a.m. N/A 0.1 ppb (0) 2.8 ppb (3) N/A 2.7 ppb (3) N/A 32.0 ppb (25) 0.17 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
April 2, 2020, 8 a.m. N/A 0.1 ppb (0) 2.5 ppb (2) N/A 2.3 ppb (2) N/A 33.0 ppb (25) 0.16 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
April 2, 2020, 7 a.m. N/A 0.2 ppb (0) 2.5 ppb (2) N/A 2.3 ppb (2) N/A 33.0 ppb (25) 0.16 ppb (2) N/A 5.0 μg/m3 (21) 25.0
 
April 2, 2020, 6 a.m. N/A 0.1 ppb (0) 2.1 ppb (2) N/A 2.0 ppb (2) N/A 33.0 ppb (25) 0.15 ppb (2) N/A 5.0 μg/m3 (21) 25.0
 
April 2, 2020, 5 a.m. N/A 0.1 ppb (0) 2.2 ppb (2) N/A 2.1 ppb (2) N/A 34.0 ppb (26) 0.15 ppb (2) N/A 6.0 μg/m3 (25) 26.0
 
April 2, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 5.0 μg/m3 (21) 26.0
 
April 2, 2020, 3 a.m. N/A 0.1 ppb (0) 2.8 ppb (3) N/A 2.7 ppb (3) N/A 33.0 ppb (25) 0.16 ppb (2) N/A 5.0 μg/m3 (21) 25.0
 
April 2, 2020, 2 a.m. N/A 0.0 ppb (0) 2.8 ppb (3) N/A 2.7 ppb (3) N/A 33.0 ppb (25) 0.16 ppb (2) N/A 5.0 μg/m3 (21) 25.0
 
April 2, 2020, 1 a.m. N/A 0.1 ppb (0) 3.2 ppb (3) N/A 3.1 ppb (3) N/A 33.0 ppb (25) 0.18 ppb (2) N/A 5.0 μg/m3 (21) 25.0
 
April 2, 2020, midnight N/A 0.1 ppb (0) 2.9 ppb (3) N/A 2.8 ppb (3) N/A 34.0 ppb (26) 0.17 ppb (2) N/A 6.0 μg/m3 (25) 26.0
 
April 1, 2020, 11 p.m. N/A 0.1 ppb (0) 2.8 ppb (3) N/A 2.7 ppb (3) N/A 35.0 ppb (27) 0.17 ppb (2) N/A 5.0 μg/m3 (21) 27.0
 
April 1, 2020, 10 p.m. N/A 0.2 ppb (0) 2.9 ppb (3) N/A 2.7 ppb (3) N/A 36.0 ppb (28) 0.17 ppb (2) N/A 5.0 μg/m3 (21) 28.0
 
April 1, 2020, 9 p.m. N/A 0.3 ppb (0) 2.9 ppb (3) N/A 2.6 ppb (2) N/A 36.0 ppb (28) 0.16 ppb (2) N/A 5.0 μg/m3 (21) 28.0
 
April 1, 2020, 8 p.m. N/A 0.3 ppb (0) 2.7 ppb (3) N/A 2.4 ppb (2) N/A 35.0 ppb (27) 0.16 ppb (2) N/A 5.0 μg/m3 (21) 27.0
 
April 1, 2020, 7 p.m. N/A 0.4 ppb (0) 2.8 ppb (3) N/A 2.5 ppb (2) N/A 34.0 ppb (26) 0.18 ppb (2) N/A 4.0 μg/m3 (17) 26.0
 
April 1, 2020, 6 p.m. N/A 0.2 ppb (0) 2.5 ppb (2) N/A 2.3 ppb (2) N/A 33.0 ppb (25) 0.17 ppb (2) N/A 3.0 μg/m3 (12) 25.0
 
April 1, 2020, 5 p.m. N/A 0.3 ppb (0) 2.9 ppb (3) N/A 2.6 ppb (2) N/A 32.0 ppb (25) 0.18 ppb (2) N/A 4.0 μg/m3 (17) 25.0
 
April 1, 2020, 4 p.m. N/A 0.4 ppb (0) 3.7 ppb (3) N/A 3.3 ppb (3) N/A 32.0 ppb (25) 0.18 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
April 1, 2020, 3 p.m. N/A 0.5 ppb (0) 3.9 ppb (4) N/A 3.4 ppb (3) N/A 31.0 ppb (24) 0.18 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
April 1, 2020, 2 p.m. N/A 0.3 ppb (0) 4.4 ppb (4) N/A 4.0 ppb (4) N/A 28.0 ppb (22) 0.18 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
April 1, 2020, 1 p.m. N/A 0.2 ppb (0) 4.1 ppb (4) N/A 3.9 ppb (4) N/A 28.0 ppb (22) 0.18 ppb (2) N/A 7.0 μg/m3 (29) 29.0
 
April 1, 2020, noon N/A 0.1 ppb (0) 3.5 ppb (3) N/A 3.3 ppb (3) N/A 29.0 ppb (22) 0.17 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
April 1, 2020, 11 a.m. N/A 0.1 ppb (0) 2.9 ppb (3) N/A 2.8 ppb (3) N/A 29.0 ppb (22) 0.17 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
April 1, 2020, 10 a.m. N/A 0.1 ppb (0) 2.0 ppb (2) N/A 1.9 ppb (2) N/A 29.0 ppb (22) 0.17 ppb (2) N/A 4.0 μg/m3 (17) 22.0
 
April 1, 2020, 9 a.m. N/A 0.1 ppb (0) 1.8 ppb (2) N/A 1.7 ppb (2) N/A 30.0 ppb (23) 0.17 ppb (2) N/A 4.0 μg/m3 (17) 23.0
 
April 1, 2020, 8 a.m. N/A 0.0 ppb (0) 2.5 ppb (2) N/A 2.4 ppb (2) N/A 32.0 ppb (25) 0.16 ppb (2) N/A 5.0 μg/m3 (21) 25.0
 
April 1, 2020, 7 a.m. N/A 0.1 ppb (0) 2.9 ppb (3) N/A 2.8 ppb (3) N/A 31.0 ppb (24) 0.16 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
April 1, 2020, 6 a.m. N/A 0.0 ppb (0) 2.0 ppb (2) N/A 1.9 ppb (2) N/A 32.0 ppb (25) 0.15 ppb (2) N/A 3.0 μg/m3 (12) 25.0
 
April 1, 2020, 5 a.m. N/A 0.1 ppb (0) 2.1 ppb (2) N/A 2.0 ppb (2) N/A 31.0 ppb (24) 0.16 ppb (2) N/A 2.0 μg/m3 (8) 24.0
 
April 1, 2020, 4 a.m. N/A 0.0 ppb (0) 2.2 ppb (2) N/A 2.1 ppb (2) N/A 35.0 ppb (27) 0.16 ppb (2) N/A 2.0 μg/m3 (8) 27.0
 
April 1, 2020, 3 a.m. N/A 0.1 ppb (0) 1.8 ppb (2) N/A 1.7 ppb (2) N/A 39.0 ppb (30) 0.15 ppb (2) N/A 2.0 μg/m3 (8) 30.0
 
April 1, 2020, 2 a.m. N/A 0.0 ppb (0) 1.7 ppb (2) N/A 1.6 ppb (1) N/A 41.0 ppb (32) 0.14 ppb (2) N/A 2.0 μg/m3 (8) 32.0
 
April 1, 2020, 1 a.m. N/A 0.0 ppb (0) 2.3 ppb (2) N/A 2.2 ppb (2) N/A 41.0 ppb (32) 0.15 ppb (2) N/A 2.0 μg/m3 (8) 32.0
 
April 1, 2020, midnight N/A 0.1 ppb (0) 2.3 ppb (2) N/A 2.2 ppb (2) N/A 41.0 ppb (32) 0.14 ppb (2) N/A 3.0 μg/m3 (12) 32.0
 
March 31, 2020, 11 p.m. N/A 0.1 ppb (0) 2.5 ppb (2) N/A 2.4 ppb (2) N/A 39.0 ppb (30) 0.15 ppb (2) N/A 3.0 μg/m3 (12) 30.0
 
March 31, 2020, 10 p.m. N/A 0.2 ppb (0) 2.0 ppb (2) N/A 1.9 ppb (2) N/A 42.0 ppb (32) 0.15 ppb (2) N/A 3.0 μg/m3 (12) 32.0
 
March 31, 2020, 9 p.m. N/A 0.2 ppb (0) 2.5 ppb (2) N/A 2.3 ppb (2) N/A 41.0 ppb (32) 0.15 ppb (2) N/A 3.0 μg/m3 (12) 32.0
 
March 31, 2020, 8 p.m. N/A 0.2 ppb (0) 3.2 ppb (3) N/A 2.9 ppb (3) N/A 40.0 ppb (31) 0.15 ppb (2) N/A 3.0 μg/m3 (12) 31.0
 
March 31, 2020, 7 p.m. N/A 0.2 ppb (0) 2.3 ppb (2) N/A 2.1 ppb (2) N/A 40.0 ppb (31) 0.15 ppb (2) N/A 2.0 μg/m3 (8) 31.0
 
March 31, 2020, 6 p.m. N/A 0.2 ppb (0) 2.5 ppb (2) N/A 2.3 ppb (2) N/A 38.0 ppb (29) 0.16 ppb (2) N/A 3.0 μg/m3 (12) 29.0
 
March 31, 2020, 5 p.m. N/A 0.2 ppb (0) 2.0 ppb (2) N/A 1.8 ppb (2) N/A 41.0 ppb (32) 0.16 ppb (2) N/A 4.0 μg/m3 (17) 32.0
 
March 31, 2020, 4 p.m. N/A 0.2 ppb (0) 2.0 ppb (2) N/A 1.8 ppb (2) N/A 40.0 ppb (31) 0.15 ppb (2) N/A 2.0 μg/m3 (8) 31.0
 
March 31, 2020, 3 p.m. N/A 0.2 ppb (0) 2.3 ppb (2) N/A 2.2 ppb (2) N/A 40.0 ppb (31) 0.15 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
March 31, 2020, 2 p.m. N/A 0.1 ppb (0) 2.2 ppb (2) N/A 2.0 ppb (2) N/A N/A 0.15 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
March 31, 2020, 1 p.m. N/A 0.1 ppb (0) 1.9 ppb (2) N/A 1.8 ppb (2) N/A 41.0 ppb (32) 0.16 ppb (2) N/A 3.0 μg/m3 (12) 32.0
 
March 31, 2020, noon N/A 0.1 ppb (0) 2.2 ppb (2) N/A 2.1 ppb (2) N/A 41.0 ppb (32) 0.15 ppb (2) N/A 6.0 μg/m3 (25) 32.0