AQSQID: 360337003

Site Name: St Regis Mohawk-Ny

Location: Franklin Co, NY

Reporting: True, Located: True

Current AQI: 7.0

Franklin Co NY, US: 44.980598, -74.695297

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 23, 2019, 3 p.m. 0.1 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 3.0 ppb (4) 4.0 ppb (3) N/A N/A 1.6 μg/m3 (7) 7.0
 
March 23, 2019, 2 p.m. 0.1 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 11.0 μg/m3 (46) 46.0
 
March 23, 2019, 1 p.m. 0.1 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 2.4 μg/m3 (10) 10.0
 
March 23, 2019, noon 0.1 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 12.5 μg/m3 (51) 51.0
 
March 23, 2019, 11 a.m. 0.1 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 1.5 μg/m3 (6) 6.0
 
March 23, 2019, 10 a.m. 0.1 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 3.0 ppb (4) 4.0 ppb (3) N/A N/A 11.8 μg/m3 (49) 49.0
 
March 23, 2019, 9 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 3.0 ppb (4) 4.0 ppb (3) N/A N/A 2.7 μg/m3 (11) 11.0
 
March 23, 2019, 8 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 3.0 ppb (4) 4.0 ppb (3) N/A N/A 11.3 μg/m3 (47) 47.0
 
March 23, 2019, 7 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 3.0 ppb (4) 4.0 ppb (3) N/A N/A 2.3 μg/m3 (10) 10.0
 
March 23, 2019, 6 a.m. 0.1 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 3.0 ppb (4) 4.0 ppb (3) N/A N/A 10.7 μg/m3 (45) 45.0
 
March 23, 2019, 5 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 3.0 ppb (4) 4.0 ppb (3) N/A N/A 2.9 μg/m3 (12) 12.0
 
March 23, 2019, 4 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 3.0 ppb (4) 4.0 ppb (3) N/A N/A 10.0 μg/m3 (42) 42.0
 
March 23, 2019, 3 a.m. 0.1 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 3.0 ppb (4) 4.0 ppb (3) N/A N/A 2.3 μg/m3 (10) 10.0
 
March 23, 2019, 2 a.m. 0.1 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 3.0 ppb (4) 3.0 ppb (2) N/A N/A 8.5 μg/m3 (35) 35.0
 
March 23, 2019, 1 a.m. 0.1 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 3.0 ppb (4) 3.0 ppb (2) N/A N/A 1.8 μg/m3 (8) 8.0
 
March 23, 2019, midnight 0.1 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 3.0 ppb (4) 3.0 ppb (2) N/A N/A 9.3 μg/m3 (39) 39.0
 
March 22, 2019, 11 p.m. 0.1 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 3.0 ppb (2) N/A N/A 1.3 μg/m3 (5) 5.0
 
March 22, 2019, 10 p.m. 0.1 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 3.0 ppb (2) N/A N/A 9.8 μg/m3 (41) 41.0
 
March 22, 2019, 9 p.m. 0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 1.3 μg/m3 (5) 5.0
 
March 22, 2019, 8 p.m. 0.3 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 8.5 μg/m3 (35) 35.0
 
March 22, 2019, 7 p.m. 0.5 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 1.1 μg/m3 (5) 5.0
 
March 22, 2019, 6 p.m. 0.5 ppb (0) 0.1 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 8.3 μg/m3 (35) 35.0
 
March 22, 2019, 5 p.m. 0.3 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 1.3 μg/m3 (5) 5.0
 
March 22, 2019, 4 p.m. 0.4 ppb (0) 0.1 ppb (0) N/A 0.0 ppb (0) N/A 3.0 ppb (4) 4.0 ppb (3) N/A N/A 10.2 μg/m3 (42) 42.0
 
March 22, 2019, 3 p.m. 0.5 ppb (0) 0.1 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 0.6 μg/m3 (2) 3.0
 
March 22, 2019, 2 p.m. 0.3 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 3.0 ppb (4) 4.0 ppb (3) N/A N/A 8.0 μg/m3 (33) 33.0
 
March 22, 2019, 1 p.m. 0.4 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 3.0 ppb (2) N/A N/A 0.6 μg/m3 (2) 3.0
 
March 22, 2019, noon 0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 3.0 ppb (2) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 22, 2019, 11 a.m. 0.1 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 3.0 ppb (2) N/A N/A 0.6 μg/m3 (2) 3.0
 
March 22, 2019, 10 a.m. 0.3 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 3.0 ppb (2) N/A N/A 8.2 μg/m3 (34) 34.0
 
March 22, 2019, 9 a.m. 0.1 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 0.6 μg/m3 (2) 3.0
 
March 22, 2019, 8 a.m. 0.4 ppb (0) 0.1 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 3.0 ppb (2) N/A N/A 6.9 μg/m3 (29) 29.0
 
March 22, 2019, 7 a.m. 0.4 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 3.0 ppb (2) N/A N/A 0.6 μg/m3 (2) 3.0
 
March 22, 2019, 6 a.m. 0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 3.0 ppb (2) N/A N/A 7.8 μg/m3 (32) 32.0
 
March 22, 2019, 5 a.m. 0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 0.6 μg/m3 (2) 3.0
 
March 22, 2019, 4 a.m. 0.3 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 6.5 μg/m3 (27) 27.0
 
March 22, 2019, 3 a.m. 0.3 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 0.7 μg/m3 (3) 3.0
 
March 22, 2019, 2 a.m. 0.3 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 6.5 μg/m3 (27) 27.0
 
March 22, 2019, 1 a.m. 0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 1.5 μg/m3 (6) 6.0
 
March 22, 2019, midnight 0.5 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 15.5 μg/m3 (57) 57.0
 
March 21, 2019, 11 p.m. 0.4 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 3.0 ppb (4) 4.0 ppb (3) N/A N/A 7.2 μg/m3 (30) 30.0
 
March 21, 2019, 10 p.m. 0.7 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 18.1 μg/m3 (63) 63.0
 
March 21, 2019, 9 p.m. 0.7 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 7.2 μg/m3 (30) 30.0
 
March 21, 2019, 8 p.m. 0.3 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 5.0 ppb (4) N/A N/A 13.9 μg/m3 (54) 54.0
 
March 21, 2019, 7 p.m. 0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 5.0 ppb (4) N/A N/A 4.6 μg/m3 (19) 19.0
 
March 21, 2019, 6 p.m. 1.8 ppb (2) 1.7 ppb (2) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 5.0 ppb (4) N/A N/A 14.1 μg/m3 (54) 54.0
 
March 21, 2019, 5 p.m. 0.9 ppb (1) 0.8 ppb (1) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 5.0 ppb (4) N/A N/A 2.5 μg/m3 (10) 10.0
 
March 21, 2019, 4 p.m. 0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 5.0 ppb (4) N/A N/A 9.4 μg/m3 (39) 39.0
 
March 21, 2019, 3 p.m. 0.3 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 5.0 ppb (4) N/A N/A 2.1 μg/m3 (9) 9.0
 
March 21, 2019, 2 p.m. 0.5 ppb (0) 0.1 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 21, 2019, 1 p.m. 0.4 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 3.5 μg/m3 (15) 15.0
 
March 21, 2019, noon 0.3 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 5.0 ppb (4) N/A N/A 13.6 μg/m3 (53) 53.0
 
March 21, 2019, 11 a.m. 0.6 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 5.0 μg/m3 (21) 21.0
 
March 21, 2019, 10 a.m. 0.6 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 3.0 ppb (2) N/A N/A 15.3 μg/m3 (57) 57.0
 
March 21, 2019, 9 a.m. 0.9 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 2.0 ppb (2) N/A N/A 6.7 μg/m3 (28) 28.0
 
March 21, 2019, 8 a.m. 0.7 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 3.0 ppb (4) 3.0 ppb (2) N/A N/A 21.3 μg/m3 (70) 70.0
 
March 21, 2019, 7 a.m. 0.8 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 3.0 ppb (4) 2.0 ppb (2) N/A N/A 4.7 μg/m3 (20) 20.0
 
March 21, 2019, 6 a.m. 0.7 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 3.0 ppb (4) 3.0 ppb (2) N/A N/A 15.7 μg/m3 (58) 58.0
 
March 21, 2019, 5 a.m. 0.6 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 3.0 ppb (2) N/A N/A 8.5 μg/m3 (35) 35.0
 
March 21, 2019, 4 a.m. 0.5 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 15.8 μg/m3 (58) 58.0
 
March 21, 2019, 3 a.m. 0.6 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 5.9 μg/m3 (25) 25.0
 
March 21, 2019, 2 a.m. 0.6 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 3.0 ppb (4) 4.0 ppb (3) N/A N/A 18.9 μg/m3 (65) 65.0
 
March 21, 2019, 1 a.m. 0.6 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 4.7 μg/m3 (20) 20.0
 
March 21, 2019, midnight 0.8 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 3.0 ppb (4) 4.0 ppb (3) N/A N/A 20.0 μg/m3 (67) 67.0
 
March 20, 2019, 11 p.m. 0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 5.0 ppb (4) N/A N/A 4.8 μg/m3 (20) 20.0
 
March 20, 2019, 10 p.m. 0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 5.0 ppb (4) N/A N/A 16.6 μg/m3 (60) 60.0
 
March 20, 2019, 9 p.m. 0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 5.0 ppb (4) N/A N/A 4.0 μg/m3 (17) 17.0
 
March 20, 2019, 8 p.m. 0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 5.0 ppb (4) N/A N/A 12.9 μg/m3 (52) 52.0
 
March 20, 2019, 7 p.m. 0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 11.0 ppb (8) N/A N/A 3.2 μg/m3 (13) 13.0
 
March 20, 2019, 6 p.m. 0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 36.0 ppb (28) N/A N/A 13.1 μg/m3 (52) 52.0
 
March 20, 2019, 5 p.m. 0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 9.0 ppb (7) N/A N/A 3.1 μg/m3 (13) 13.0
 
March 20, 2019, 4 p.m. 0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 0.0 ppb (0) N/A N/A 11.1 μg/m3 (46) 46.0
 
March 20, 2019, 3 p.m. 0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 5.0 ppb (4) N/A N/A 1.9 μg/m3 (8) 8.0
 
March 20, 2019, 2 p.m. 0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 5.0 ppb (4) N/A N/A 9.8 μg/m3 (41) 41.0
 
March 20, 2019, 1 p.m. 0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 5.0 ppb (4) N/A N/A 2.0 μg/m3 (8) 8.0
 
March 20, 2019, noon 0.3 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 11.1 μg/m3 (46) 46.0
 
March 20, 2019, 11 a.m. 0.4 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 1.5 μg/m3 (6) 6.0
 
March 20, 2019, 10 a.m. 0.4 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 10.4 μg/m3 (43) 43.0
 
March 20, 2019, 9 a.m. 0.4 ppb (0) 0.1 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 1.4 μg/m3 (6) 6.0
 
March 20, 2019, 8 a.m. 0.3 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 10.5 μg/m3 (44) 44.0
 
March 20, 2019, 7 a.m. 0.1 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 0.8 μg/m3 (3) 3.0
 
March 20, 2019, 6 a.m. 0.1 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 10.7 μg/m3 (45) 45.0
 
March 20, 2019, 5 a.m. 0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 1.8 μg/m3 (8) 8.0
 
March 20, 2019, 4 a.m. 0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 9.3 μg/m3 (39) 39.0
 
March 20, 2019, 3 a.m. 0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 2.7 μg/m3 (11) 11.0
 
March 20, 2019, 2 a.m. 0.3 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 10.9 μg/m3 (45) 45.0
 
March 20, 2019, 1 a.m. 0.3 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 1.7 μg/m3 (7) 7.0
 
March 20, 2019, midnight 0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 11.3 μg/m3 (47) 47.0
 
March 19, 2019, 11 p.m. 0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 5.0 ppb (4) N/A N/A 1.7 μg/m3 (7) 7.0
 
March 19, 2019, 10 p.m. 0.1 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 5.0 ppb (4) N/A N/A 10.1 μg/m3 (42) 42.0
 
March 19, 2019, 9 p.m. 0.1 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 5.0 ppb (4) N/A N/A 0.8 μg/m3 (3) 4.0
 
March 19, 2019, 8 p.m. 0.1 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 5.0 ppb (4) N/A N/A 8.8 μg/m3 (37) 37.0
 
March 19, 2019, 7 p.m. 0.1 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 5.0 ppb (4) N/A N/A 0.9 μg/m3 (4) 4.0
 
March 19, 2019, 6 p.m. 0.1 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 5.0 ppb (4) N/A N/A 8.5 μg/m3 (35) 35.0
 
March 19, 2019, 5 p.m. 0.1 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 5.0 ppb (4) N/A N/A 1.4 μg/m3 (6) 6.0
 
March 19, 2019, 4 p.m. 0.2 ppb (0) 0.1 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 8.3 μg/m3 (35) 35.0
 
March 19, 2019, 3 p.m. 0.2 ppb (0) 0.1 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 0.7 μg/m3 (3) 3.0
 
March 19, 2019, 2 p.m. 0.5 ppb (0) 0.2 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 11.8 μg/m3 (49) 49.0
 
March 19, 2019, 1 p.m. 0.7 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 3.0 ppb (2) N/A N/A 4.0 μg/m3 (17) 17.0
 
March 19, 2019, noon 1.1 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 2.0 ppb (2) N/A N/A 14.8 μg/m3 (56) 56.0
 
March 19, 2019, 11 a.m. 2.0 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 2.0 ppb (3) 1.0 ppb (1) N/A N/A 6.7 μg/m3 (28) 28.0
 
March 19, 2019, 10 a.m. 1.5 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 2.0 ppb (2) N/A N/A 17.1 μg/m3 (61) 61.0
 
March 19, 2019, 9 a.m. 1.3 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 2.0 ppb (2) N/A N/A 4.0 μg/m3 (17) 17.0
 
March 19, 2019, 8 a.m. 1.1 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 2.0 ppb (2) N/A N/A 14.6 μg/m3 (56) 56.0
 
March 19, 2019, 7 a.m. 0.7 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 3.0 ppb (2) N/A N/A 2.2 μg/m3 (9) 9.0
 
March 19, 2019, 6 a.m. 0.6 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 3.0 ppb (2) N/A N/A 13.8 μg/m3 (54) 54.0
 
March 19, 2019, 5 a.m. 0.3 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 1.9 μg/m3 (8) 8.0
 
March 19, 2019, 4 a.m. 0.5 ppb (0) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 11.6 μg/m3 (48) 48.0
 
March 19, 2019, 3 a.m. 0.7 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 3.0 ppb (2) N/A N/A 2.2 μg/m3 (9) 9.0
 
March 19, 2019, 2 a.m. 0.3 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 12.8 μg/m3 (52) 52.0
 
March 19, 2019, 1 a.m. 0.3 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 1.7 μg/m3 (7) 7.0
 
March 19, 2019, midnight 0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 10.7 μg/m3 (45) 45.0
 
March 18, 2019, 11 p.m. 0.1 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 5.0 ppb (4) N/A N/A 2.1 μg/m3 (9) 9.0
 
March 18, 2019, 10 p.m. 0.1 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 5.0 ppb (4) N/A N/A 9.9 μg/m3 (41) 41.0
 
March 18, 2019, 9 p.m. 0.1 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 5.0 ppb (4) N/A N/A 0.9 μg/m3 (4) 4.0
 
March 18, 2019, 8 p.m. 0.1 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 5.0 ppb (4) N/A N/A 8.6 μg/m3 (36) 36.0
 
March 18, 2019, 7 p.m. 19.5 ppb (18) 12.1 ppb (11) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 5.0 ppb (4) N/A N/A 1.3 μg/m3 (5) 18.0
 
March 18, 2019, 6 p.m. 33.2 ppb (31) 13.8 ppb (13) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 5.0 ppb (4) N/A N/A 7.5 μg/m3 (31) 31.0
 
March 18, 2019, 5 p.m. 39.4 ppb (36) 13.6 ppb (13) N/A N/A N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 0.7 μg/m3 (3) 36.0
 
March 18, 2019, 4 p.m. 39.9 ppb (37) 13.8 ppb (13) N/A N/A N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 8.3 μg/m3 (35) 37.0
 
March 18, 2019, 3 p.m. 14.8 ppb (14) 5.5 ppb (5) N/A 5.0 ppb (5) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 0.9 μg/m3 (4) 14.0
 
March 18, 2019, 2 p.m. 0.1 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 8.2 μg/m3 (34) 34.0
 
March 18, 2019, 1 p.m. 0.3 ppb (0) 0.1 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 1.4 μg/m3 (6) 6.0
 
March 18, 2019, noon 0.4 ppb (0) 0.1 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 3.0 ppb (2) N/A N/A 11.1 μg/m3 (46) 46.0
 
March 18, 2019, 11 a.m. 0.7 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 2.0 ppb (3) 3.0 ppb (2) N/A N/A 2.3 μg/m3 (10) 10.0
 
March 18, 2019, 10 a.m. 0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 11.6 μg/m3 (48) 48.0
 
March 18, 2019, 9 a.m. 0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 1.9 μg/m3 (8) 8.0
 
March 18, 2019, 8 a.m. 0.3 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 10.4 μg/m3 (43) 43.0
 
March 18, 2019, 7 a.m. 0.3 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 1.2 μg/m3 (5) 5.0
 
March 18, 2019, 6 a.m. 0.2 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 9.9 μg/m3 (41) 41.0
 
March 18, 2019, 5 a.m. 0.1 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 1.1 μg/m3 (5) 5.0
 
March 18, 2019, 4 a.m. 0.0 ppb (0) -0.1 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 10.4 μg/m3 (43) 43.0
 
March 18, 2019, 3 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 1.5 μg/m3 (6) 6.0
 
March 18, 2019, 2 a.m. 0.0 ppb (0) -0.1 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 9.5 μg/m3 (40) 40.0
 
March 18, 2019, 1 a.m. 0.0 ppb (0) -0.1 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 1.2 μg/m3 (5) 5.0
 
March 18, 2019, midnight 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 9.4 μg/m3 (39) 39.0
 
March 17, 2019, 11 p.m. -0.1 ppb (0) -0.1 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 1.7 μg/m3 (7) 7.0
 
March 17, 2019, 10 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 9.5 μg/m3 (40) 40.0
 
March 17, 2019, 9 p.m. -0.1 ppb (0) -0.1 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 1.2 μg/m3 (5) 5.0
 
March 17, 2019, 8 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 7.4 μg/m3 (31) 31.0
 
March 17, 2019, 7 p.m. -0.1 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 0.8 μg/m3 (3) 3.0
 
March 17, 2019, 6 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 6.4 μg/m3 (27) 27.0
 
March 17, 2019, 5 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 0.7 μg/m3 (3) 3.0
 
March 17, 2019, 4 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 8.1 μg/m3 (34) 34.0
 
March 17, 2019, 3 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 0.6 μg/m3 (2) 3.0
 
March 17, 2019, 2 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 7.3 μg/m3 (30) 30.0
 
March 17, 2019, 1 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 0.9 μg/m3 (4) 4.0
 
March 17, 2019, noon 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 9.7 μg/m3 (40) 40.0
 
March 17, 2019, 11 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 1.1 μg/m3 (5) 5.0
 
March 17, 2019, 10 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 10.9 μg/m3 (45) 45.0
 
March 17, 2019, 9 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 1.2 μg/m3 (5) 5.0
 
March 17, 2019, 8 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 17, 2019, 7 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 0.7 μg/m3 (3) 3.0
 
March 17, 2019, 6 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 9.6 μg/m3 (40) 40.0
 
March 17, 2019, 5 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 1.2 μg/m3 (5) 5.0
 
March 17, 2019, 4 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 9.6 μg/m3 (40) 40.0
 
March 17, 2019, 3 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 1.2 μg/m3 (5) 5.0
 
March 17, 2019, 2 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 9.8 μg/m3 (41) 41.0
 
March 17, 2019, 1 a.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 1.6 μg/m3 (7) 7.0
 
March 17, 2019, midnight 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 11.0 μg/m3 (46) 46.0
 
March 16, 2019, 11 p.m. 0.0 ppb (0) -0.1 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 2.2 μg/m3 (9) 9.0
 
March 16, 2019, 10 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 10.0 μg/m3 (42) 42.0
 
March 16, 2019, 9 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 1.9 μg/m3 (8) 8.0
 
March 16, 2019, 8 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 9.8 μg/m3 (41) 41.0
 
March 16, 2019, 7 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 1.0 μg/m3 (4) 4.0
 
March 16, 2019, 6 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 7.2 μg/m3 (30) 30.0
 
March 16, 2019, 5 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 1.5 μg/m3 (6) 6.0
 
March 16, 2019, 4 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 ppb (3) 4.0 ppb (3) N/A N/A 9.1 μg/m3 (38) 38.0