AQSQID: 300290049

Site Name: Flathead Valley

Location: Columbia Falls, MT

Reporting: True, Located: True

Current AQI: 42.0

Columbia Falls MT, US: 48.363694, -114.189272

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Nov. 18, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 31.0 μg/m3 (28) 10.1 μg/m3 (42) 42.0
 
Nov. 18, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 7.4 μg/m3 (31) 31.0
 
Nov. 18, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 7.9 μg/m3 (33) 33.0
 
Nov. 18, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 9.6 μg/m3 (40) 40.0
 
Nov. 18, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 7.4 μg/m3 (31) 31.0
 
Nov. 18, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 2.9 μg/m3 (12) 12.0
 
Nov. 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) 6.7 μg/m3 (28) 28.0
 
Nov. 18, 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) 6.4 μg/m3 (27) 27.0
 
Nov. 18, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 3.7 μg/m3 (15) 15.0
 
Nov. 18, 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) 5.4 μg/m3 (23) 23.0
 
Nov. 18, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 1.7 μg/m3 (7) 7.0
 
Nov. 18, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 4.2 μg/m3 (18) 18.0
 
Nov. 18, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 8.2 μg/m3 (34) 34.0
 
Nov. 18, 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) 1.5 μg/m3 (6) 6.0
 
Nov. 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) -1.3 μg/m3 (0) 4.0
 
Nov. 18, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) 1.0 μg/m3 (4) 4.0
 
Nov. 18, 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) 3.4 μg/m3 (14) 14.0
 
Nov. 18, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 4.9 μg/m3 (20) 20.0
 
Nov. 18, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 3.2 μg/m3 (13) 13.0
 
Nov. 18, 2019, 3 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 (8) 8.0
 
Nov. 18, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 4.4 μg/m3 (18) 18.0
 
Nov. 18, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 3.7 μg/m3 (15) 15.0
 
Nov. 18, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 3.9 μg/m3 (16) 16.0
 
Nov. 17, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 5.2 μg/m3 (22) 22.0
 
Nov. 17, 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) 4.2 μg/m3 (18) 18.0
 
Nov. 17, 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) 2.0 μg/m3 (8) 8.0
 
Nov. 17, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) -0.6 μg/m3 (0) 5.0
 
Nov. 17, 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) 3.7 μg/m3 (15) 15.0
 
Nov. 17, 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) 9.9 μg/m3 (41) 41.0
 
Nov. 17, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 8.6 μg/m3 (36) 36.0
 
Nov. 17, 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) -0.8 μg/m3 (0) 5.0
 
Nov. 17, 2019, 3 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
 
Nov. 17, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (1) 2.2 μg/m3 (9) 9.0
 
Nov. 17, 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) 2.0 μg/m3 (8) 8.0
 
Nov. 17, 2019, noon 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 (8) 8.0
 
Nov. 17, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) 0.2 μg/m3 (1) 2.0
 
Nov. 17, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 4.4 μg/m3 (18) 18.0
 
Nov. 17, 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) 7.2 μg/m3 (30) 30.0
 
Nov. 17, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.4 μg/m3 (27) 27.0
 
Nov. 17, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (20) 4.9 μg/m3 (20) 20.0
 
Nov. 17, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 8.4 μg/m3 (35) 35.0
 
Nov. 17, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (23) 12.7 μg/m3 (51) 51.0
 
Nov. 17, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 15.7 μg/m3 (58) 58.0
 
Nov. 17, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) 4.7 μg/m3 (20) 20.0
 
Nov. 17, 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) 1.5 μg/m3 (6) 6.0
 
Nov. 17, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 0.2 μg/m3 (1) 8.0
 
Nov. 17, 2019, midnight 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
 
Nov. 16, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 2.7 μg/m3 (11) 11.0
 
Nov. 16, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 4.5 μg/m3 (19) 19.0
 
Nov. 16, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (20) 14.7 μg/m3 (56) 56.0
 
Nov. 16, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 6.9 μg/m3 (29) 29.0
 
Nov. 16, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 4.4 μg/m3 (18) 18.0
 
Nov. 16, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 2.9 μg/m3 (12) 12.0
 
Nov. 16, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 7.2 μg/m3 (30) 30.0
 
Nov. 16, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 10.6 μg/m3 (44) 44.0
 
Nov. 16, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 9.1 μg/m3 (38) 38.0
 
Nov. 16, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 8.9 μg/m3 (37) 37.0
 
Nov. 16, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 10.3 μg/m3 (43) 43.0
 
Nov. 16, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 11.8 μg/m3 (49) 49.0
 
Nov. 16, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 11.6 μg/m3 (48) 48.0
 
Nov. 16, 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) 10.3 μg/m3 (43) 43.0
 
Nov. 16, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 8.9 μg/m3 (37) 37.0
 
Nov. 16, 2019, 8 a.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
 
Nov. 16, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 4.2 μg/m3 (18) 18.0
 
Nov. 16, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (1) 3.4 μg/m3 (14) 14.0
 
Nov. 16, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (21) 16.4 μg/m3 (59) 59.0
 
Nov. 16, 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) 12.3 μg/m3 (51) 51.0
 
Nov. 16, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 12.6 μg/m3 (51) 51.0
 
Nov. 16, 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) 13.7 μg/m3 (54) 54.0
 
Nov. 16, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (21) 13.7 μg/m3 (54) 54.0
 
Nov. 16, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 17.4 μg/m3 (61) 61.0
 
Nov. 15, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (27) 14.7 μg/m3 (56) 56.0
 
Nov. 15, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (21) 12.1 μg/m3 (50) 50.0
 
Nov. 15, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 10.1 μg/m3 (42) 42.0
 
Nov. 15, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 14.7 μg/m3 (56) 56.0
 
Nov. 15, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 9.9 μg/m3 (41) 41.0
 
Nov. 15, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 12.8 μg/m3 (52) 52.0
 
Nov. 15, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 13.4 μg/m3 (53) 53.0
 
Nov. 15, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 12.8 μg/m3 (52) 52.0
 
Nov. 15, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 12.1 μg/m3 (50) 50.0
 
Nov. 15, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) 14.7 μg/m3 (56) 56.0
 
Nov. 15, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 15.7 μg/m3 (58) 58.0
 
Nov. 15, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 13.2 μg/m3 (53) 53.0
 
Nov. 15, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 14.7 μg/m3 (56) 56.0
 
Nov. 15, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (21) 20.7 μg/m3 (69) 69.0
 
Nov. 15, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 24.4 μg/m3 (76) 76.0
 
Nov. 15, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (25) 22.6 μg/m3 (73) 73.0
 
Nov. 15, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 31.0 μg/m3 (28) 25.1 μg/m3 (78) 78.0
 
Nov. 15, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (27) 30.6 μg/m3 (90) 90.0
 
Nov. 15, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (27) 31.4 μg/m3 (91) 91.0
 
Nov. 15, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (23) 22.9 μg/m3 (73) 73.0
 
Nov. 15, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 19.2 μg/m3 (65) 65.0
 
Nov. 15, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (27) 28.7 μg/m3 (86) 86.0
 
Nov. 15, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 20.4 μg/m3 (68) 68.0
 
Nov. 15, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 14.7 μg/m3 (56) 56.0
 
Nov. 14, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 15.4 μg/m3 (57) 57.0
 
Nov. 14, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 11.6 μg/m3 (48) 48.0
 
Nov. 14, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (23) 14.9 μg/m3 (56) 56.0
 
Nov. 14, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 18.6 μg/m3 (64) 64.0
 
Nov. 14, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (22) 12.3 μg/m3 (51) 51.0
 
Nov. 14, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) 12.8 μg/m3 (52) 52.0
 
Nov. 14, 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) 14.9 μg/m3 (56) 56.0
 
Nov. 14, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (23) 22.4 μg/m3 (72) 72.0
 
Nov. 14, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (27) 23.1 μg/m3 (74) 74.0
 
Nov. 14, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 24.9 μg/m3 (77) 77.0
 
Nov. 14, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 28.9 μg/m3 (86) 86.0
 
Nov. 14, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (25) 25.3 μg/m3 (78) 78.0
 
Nov. 14, 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) 27.4 μg/m3 (83) 83.0
 
Nov. 14, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (23) 24.8 μg/m3 (77) 77.0
 
Nov. 14, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (26) 24.8 μg/m3 (77) 77.0
 
Nov. 14, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 33.0 μg/m3 (30) 29.9 μg/m3 (88) 88.0
 
Nov. 14, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 36.0 μg/m3 (33) 28.4 μg/m3 (85) 85.0
 
Nov. 14, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (27) 30.6 μg/m3 (90) 90.0
 
Nov. 14, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 35.0 μg/m3 (32) 30.6 μg/m3 (90) 90.0
 
Nov. 14, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 44.0 μg/m3 (40) 37.1 μg/m3 (104) 104.0
 
Nov. 14, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 35.0 μg/m3 (32) 34.8 μg/m3 (99) 99.0
 
Nov. 14, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 35.0 μg/m3 (32) 37.0 μg/m3 (104) 104.0
 
Nov. 14, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 38.0 μg/m3 (35) 36.6 μg/m3 (103) 103.0
 
Nov. 14, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (27) 36.3 μg/m3 (102) 102.0
 
Nov. 13, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 33.0 μg/m3 (30) 29.4 μg/m3 (87) 87.0
 
Nov. 13, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (31) 30.6 μg/m3 (90) 90.0
 
Nov. 13, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (31) 31.6 μg/m3 (92) 92.0
 
Nov. 13, 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) 19.2 μg/m3 (65) 65.0
 
Nov. 13, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (22) 16.7 μg/m3 (60) 60.0
 
Nov. 13, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (22) 16.9 μg/m3 (60) 60.0
 
Nov. 13, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (22) 14.9 μg/m3 (56) 56.0
 
Nov. 13, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (26) 19.9 μg/m3 (67) 67.0
 
Nov. 13, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 12.8 μg/m3 (52) 52.0
 
Nov. 13, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 12.5 μg/m3 (51) 51.0
 
Nov. 13, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 11.3 μg/m3 (47) 47.0
 
Nov. 13, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 14.4 μg/m3 (55) 55.0
 
Nov. 13, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (20) 17.2 μg/m3 (61) 61.0
 
Nov. 13, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (22) 24.8 μg/m3 (77) 77.0
 
Nov. 13, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 25.8 μg/m3 (79) 79.0
 
Nov. 13, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 16.9 μg/m3 (60) 60.0
 
Nov. 13, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (21) 20.4 μg/m3 (68) 68.0
 
Nov. 13, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 19.4 μg/m3 (66) 66.0
 
Nov. 13, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 16.2 μg/m3 (59) 59.0
 
Nov. 13, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 13.9 μg/m3 (54) 54.0
 
Nov. 13, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 15.4 μg/m3 (57) 57.0
 
Nov. 13, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 13.5 μg/m3 (53) 53.0
 
Nov. 13, 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) 13.2 μg/m3 (53) 53.0
 
Nov. 13, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 18.7 μg/m3 (64) 64.0
 
Nov. 12, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (29) 15.1 μg/m3 (57) 57.0
 
Nov. 12, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
Nov. 12, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 7.9 μg/m3 (33) 33.0
 
Nov. 12, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (22) 16.2 μg/m3 (59) 59.0
 
Nov. 12, 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) 9.6 μg/m3 (40) 40.0
 
Nov. 12, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 9.6 μg/m3 (40) 40.0
 
Nov. 12, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 9.1 μg/m3 (38) 38.0
 
Nov. 12, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 10.1 μg/m3 (42) 42.0
 
Nov. 12, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 9.9 μg/m3 (41) 41.0
 
Nov. 12, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 9.4 μg/m3 (39) 39.0
 
Nov. 12, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 9.9 μg/m3 (41) 41.0
 
Nov. 12, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 10.1 μg/m3 (42) 42.0
 
Nov. 12, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 12.3 μg/m3 (51) 51.0
 
Nov. 12, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 9.6 μg/m3 (40) 40.0
 
Nov. 12, 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) 5.4 μg/m3 (23) 23.0
 
Nov. 12, 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) 14.7 μg/m3 (56) 56.0
 
Nov. 12, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 31.0 μg/m3 (28) 27.9 μg/m3 (84) 84.0
 
Nov. 12, 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) 29.7 μg/m3 (88) 88.0
 
Nov. 12, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (24) 21.4 μg/m3 (70) 70.0
 
Nov. 12, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (24) 21.1 μg/m3 (69) 69.0
 
Nov. 12, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 38.0 μg/m3 (35) 25.8 μg/m3 (79) 79.0
 
Nov. 12, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (31) 17.9 μg/m3 (63) 63.0
 
Nov. 12, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (29) 20.9 μg/m3 (69) 69.0
 
Nov. 12, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 6.7 μg/m3 (28) 28.0
 
Nov. 11, 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) 4.9 μg/m3 (20) 20.0