AQSQID: 300930005

Site Name: Butte Greely School

Location: Butte-Silver Bow, MT

Reporting: True, Located: True

Current AQI: 5.0

Butte-Silver Bow MT, US: 46.002399, -112.500893

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 20, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) -2.6 μg/m3 (0) 5.0
 
May 20, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) -0.9 μg/m3 (0) 6.0
 
May 19, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) -1.1 μg/m3 (0) 4.0
 
May 19, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) -0.1 μg/m3 (0) 4.0
 
May 19, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) -0.4 μg/m3 (0) 3.0
 
May 19, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) -0.1 μg/m3 (0) 3.0
 
May 19, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 1.3 μg/m3 (5) 5.0
 
May 19, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) -0.1 μg/m3 (0) 5.0
 
May 19, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) -0.4 μg/m3 (0) 7.0
 
May 19, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) -2.3 μg/m3 (0) 5.0
 
May 19, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) -3.5 μg/m3 (0) 3.0
 
May 19, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) -1.3 μg/m3 (0) 5.0
 
May 19, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) -1.6 μg/m3 (0) 4.0
 
May 19, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) -2.3 μg/m3 (0) 5.0
 
May 19, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) -4.0 μg/m3 (0) 3.0
 
May 19, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (1) -2.3 μg/m3 (0) 1.0
 
May 19, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 0.0 μg/m3 (0) -0.4 μg/m3 (0) N/A
May 19, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (1) -1.5 μg/m3 (0) 1.0
 
May 19, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) -4.0 μg/m3 (0) 3.0
 
May 19, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) -3.0 μg/m3 (0) 3.0
 
May 19, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) -0.8 μg/m3 (0) 5.0
 
May 19, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 2.0 μg/m3 (8) 8.0
 
May 19, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 6.4 μg/m3 (27) 27.0
 
May 19, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 1.3 μg/m3 (5) 6.0
 
May 19, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) -1.3 μg/m3 (0) 5.0
 
May 19, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) -0.6 μg/m3 (0) 3.0
 
May 18, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (1) -1.5 μg/m3 (0) 1.0
 
May 18, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) -1.1 μg/m3 (0) 3.0
 
May 18, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) -0.8 μg/m3 (0) 5.0
 
May 18, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 0.3 μg/m3 (1) 5.0
 
May 18, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 1.8 μg/m3 (8) 8.0
 
May 18, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 3.4 μg/m3 (14) 14.0
 
May 18, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) 3.0 μg/m3 (12) 12.0
 
May 18, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) -1.6 μg/m3 (0) 3.0
 
May 18, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) -4.0 μg/m3 (0) 5.0
 
May 18, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) -1.8 μg/m3 (0) 4.0
 
May 18, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) -3.0 μg/m3 (0) 3.0
 
May 18, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) -2.1 μg/m3 (0) 4.0
 
May 18, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 0.0 μg/m3 (0) 3.0
 
May 18, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) -0.3 μg/m3 (0) 3.0
 
May 18, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) -2.0 μg/m3 (0) 3.0
 
May 18, 2019, 8 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
 
May 18, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) N/A 5.0
 
May 18, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) -1.8 μg/m3 (0) 4.0
 
May 18, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 0.5 μg/m3 (2) 3.0
 
May 18, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) -0.8 μg/m3 (0) 3.0
 
May 18, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) -0.4 μg/m3 (0) 3.0
 
May 18, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (1) 0.6 μg/m3 (2) 2.0
 
May 18, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 0.8 μg/m3 (3) 3.0
 
May 18, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (1) -0.3 μg/m3 (0) 1.0
 
May 17, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (1) -2.5 μg/m3 (0) 1.0
 
May 17, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) -1.7 μg/m3 (0) 2.0
 
May 17, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) -0.1 μg/m3 (0) 5.0
 
May 17, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) -0.1 μg/m3 (0) 4.0
 
May 17, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) -0.8 μg/m3 (0) 2.0
 
May 17, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) -1.1 μg/m3 (0) 3.0
 
May 17, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) -2.0 μg/m3 (0) 4.0
 
May 17, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A -0.5 μg/m3 (0) N/A
May 17, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 2.5 μg/m3 (10) 10.0
 
May 17, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 5.2 μg/m3 (22) 22.0
 
May 17, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 5.9 μg/m3 (25) 25.0
 
May 17, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 4.5 μg/m3 (19) 19.0
 
May 17, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 2.3 μg/m3 (10) 10.0
 
May 17, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 0.3 μg/m3 (1) 5.0
 
May 17, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) -0.8 μg/m3 (0) 4.0
 
May 17, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) -2.0 μg/m3 (0) 5.0
 
May 17, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) -0.3 μg/m3 (0) 7.0
 
May 17, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 1.6 μg/m3 (7) 8.0
 
May 17, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 2.3 μg/m3 (10) 10.0
 
May 17, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 3.5 μg/m3 (15) 15.0
 
May 17, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 2.3 μg/m3 (10) 10.0
 
May 17, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 1.1 μg/m3 (5) 11.0
 
May 17, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 1.1 μg/m3 (5) 11.0
 
May 17, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) -0.3 μg/m3 (0) 8.0
 
May 16, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) -0.3 μg/m3 (0) 8.0
 
May 16, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 1.1 μg/m3 (5) 18.0
 
May 16, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 1.8 μg/m3 (8) 19.0
 
May 16, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) 5.2 μg/m3 (22) 22.0
 
May 16, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 5.9 μg/m3 (25) 25.0
 
May 16, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 2.3 μg/m3 (10) 15.0
 
May 16, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 1.1 μg/m3 (5) 9.0
 
May 16, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 1.3 μg/m3 (5) 7.0
 
May 16, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 1.8 μg/m3 (8) 12.0
 
May 16, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 2.3 μg/m3 (10) 12.0
 
May 16, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 2.5 μg/m3 (10) 10.0
 
May 16, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 1.1 μg/m3 (5) 6.0
 
May 16, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) -0.1 μg/m3 (0) 8.0
 
May 16, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 3.0 μg/m3 (12) 12.0
 
May 16, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 5.7 μg/m3 (24) 24.0
 
May 16, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 1.1 μg/m3 (5) 7.0
 
May 16, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) -2.0 μg/m3 (0) 7.0
 
May 16, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 0.1 μg/m3 (0) 8.0
 
May 16, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 1.1 μg/m3 (5) 10.0
 
May 16, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 1.6 μg/m3 (7) 7.0
 
May 16, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 1.8 μg/m3 (8) 8.0
 
May 16, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 0.1 μg/m3 (0) 9.0
 
May 16, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 0.3 μg/m3 (1) 13.0
 
May 16, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 3.5 μg/m3 (15) 17.0
 
May 15, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (20) 1.6 μg/m3 (7) 20.0
 
May 15, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (23) 0.3 μg/m3 (1) 23.0
 
May 15, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.1 μg/m3 (5) 5.0
 
May 15, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.3 μg/m3 (1) 1.0
 
May 15, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 2.5 μg/m3 (10) 11.0
 
May 15, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 8.3 μg/m3 (35) 35.0
 
May 15, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 6.4 μg/m3 (27) 27.0
 
May 15, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (25) 2.8 μg/m3 (12) 25.0
 
May 15, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (31) 5.7 μg/m3 (24) 31.0
 
May 15, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 46.0 μg/m3 (42) 2.8 μg/m3 (12) 42.0
 
May 15, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (21) 2.5 μg/m3 (10) 21.0
 
May 15, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (24) 3.5 μg/m3 (15) 24.0
 
May 15, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 2.0 μg/m3 (8) 17.0
 
May 15, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) -0.8 μg/m3 (0) 11.0
 
May 15, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) -2.5 μg/m3 (0) 13.0
 
May 15, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) -0.1 μg/m3 (0) 12.0
 
May 15, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 1.8 μg/m3 (8) 9.0
 
May 15, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (29) 4.0 μg/m3 (17) 29.0
 
May 15, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 57.0 μg/m3 (51) 7.1 μg/m3 (30) 51.0
 
May 15, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 63.0 μg/m3 (54) 11.4 μg/m3 (48) 54.0
 
May 15, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 105.0 μg/m3 (75) 8.6 μg/m3 (36) 75.0
 
May 15, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (24) 0.8 μg/m3 (3) 24.0
 
May 15, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 40.0 μg/m3 (36) -0.5 μg/m3 (0) 36.0
 
May 15, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (23) 0.6 μg/m3 (2) 23.0
 
May 14, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 38.0 μg/m3 (35) 0.8 μg/m3 (3) 35.0
 
May 14, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 2.8 μg/m3 (12) 15.0
 
May 14, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 3.0 μg/m3 (12) 19.0
 
May 14, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (24) 2.5 μg/m3 (10) 24.0
 
May 14, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (27) 5.2 μg/m3 (22) 27.0
 
May 14, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (25) 7.8 μg/m3 (32) 32.0
 
May 14, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (29) 7.1 μg/m3 (30) 30.0
 
May 14, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 39.0 μg/m3 (35) 8.1 μg/m3 (34) 35.0
 
May 14, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 91.0 μg/m3 (68) 9.5 μg/m3 (40) 68.0
 
May 14, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 61.0 μg/m3 (53) 5.4 μg/m3 (23) 53.0
 
May 14, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 40.0 μg/m3 (36) 3.3 μg/m3 (14) 36.0
 
May 14, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (22) 1.3 μg/m3 (5) 22.0
 
May 14, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) -0.3 μg/m3 (0) 16.0
 
May 14, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) -1.5 μg/m3 (0) 7.0
 
May 14, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) -1.0 μg/m3 (0) 8.0
 
May 14, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) -1.7 μg/m3 (0) 16.0
 
May 14, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) -1.5 μg/m3 (0) 9.0
 
May 14, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 1.9 μg/m3 (8) 11.0
 
May 14, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) 1.4 μg/m3 (6) 16.0
 
May 14, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 1.4 μg/m3 (6) 18.0
 
May 14, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (25) 0.2 μg/m3 (1) 25.0
 
May 14, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (21) 0.2 μg/m3 (1) 21.0
 
May 14, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 43.0 μg/m3 (39) 3.6 μg/m3 (15) 39.0
 
May 14, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (29) 4.4 μg/m3 (18) 29.0
 
May 13, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 5.8 μg/m3 (24) 25.0
 
May 13, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (24) 5.1 μg/m3 (21) 24.0
 
May 13, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 37.0 μg/m3 (34) 3.6 μg/m3 (15) 34.0
 
May 13, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 42.0 μg/m3 (38) 8.8 μg/m3 (37) 38.0
 
May 13, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (25) 7.2 μg/m3 (30) 30.0
 
May 13, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 3.3 μg/m3 (14) 14.0
 
May 13, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) 5.5 μg/m3 (23) 23.0
 
May 13, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (24) 6.9 μg/m3 (29) 29.0
 
May 13, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 103.0 μg/m3 (74) 8.8 μg/m3 (37) 74.0
 
May 13, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 57.0 μg/m3 (51) 7.1 μg/m3 (30) 51.0
 
May 13, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (22) 3.5 μg/m3 (15) 22.0
 
May 13, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 5.9 μg/m3 (25) 25.0
 
May 13, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (23) 4.9 μg/m3 (20) 23.0
 
May 13, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 1.8 μg/m3 (8) 12.0
 
May 13, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 3.7 μg/m3 (15) 15.0
 
May 13, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 4.5 μg/m3 (19) 19.0
 
May 13, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 4.5 μg/m3 (19) 19.0
 
May 13, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (26) 2.6 μg/m3 (11) 26.0
 
May 13, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) -0.3 μg/m3 (0) 17.0
 
May 13, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 2.1 μg/m3 (9) 18.0
 
May 13, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (24) 2.9 μg/m3 (12) 24.0
 
May 13, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (25) 0.2 μg/m3 (1) 25.0