AQSQID: 300530018

Site Name: Libby Courthouse

Location: Libby (Minnesota Ave), MT

Reporting: True, Located: True

Current AQI: 60.0

Libby (Minnesota Ave) MT, US: 48.3841, -115.548

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 22, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 16.7 μg/m3 (60) 60.0
 
Jan. 22, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 19.7 μg/m3 (66) 66.0
 
Jan. 22, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 21.0 μg/m3 (69) 69.0
 
Jan. 22, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 16.0 μg/m3 (59) 59.0
 
Jan. 22, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 14.9 μg/m3 (56) 56.0
 
Jan. 22, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 19.5 μg/m3 (66) 66.0
 
Jan. 22, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (20) 18.2 μg/m3 (63) 63.0
 
Jan. 22, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 24.3 μg/m3 (76) 76.0
 
Jan. 22, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 19.2 μg/m3 (65) 65.0
 
Jan. 22, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 23.4 μg/m3 (74) 74.0
 
Jan. 22, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 20.2 μg/m3 (67) 67.0
 
Jan. 22, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 20.4 μg/m3 (68) 68.0
 
Jan. 22, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 22.1 μg/m3 (71) 71.0
 
Jan. 22, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (27) 31.0 μg/m3 (90) 90.0
 
Jan. 22, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (26) 29.5 μg/m3 (87) 87.0
 
Jan. 22, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (25) 27.0 μg/m3 (82) 82.0
 
Jan. 22, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (20) 19.0 μg/m3 (65) 65.0
 
Jan. 22, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (23) 25.7 μg/m3 (79) 79.0
 
Jan. 22, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (23) 21.0 μg/m3 (69) 69.0
 
Jan. 22, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) 8.9 μg/m3 (37) 37.0
 
Jan. 21, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 3.1 μg/m3 (13) 15.0
 
Jan. 21, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 10.5 μg/m3 (44) 44.0
 
Jan. 21, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 10.1 μg/m3 (42) 42.0
 
Jan. 21, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) 5.1 μg/m3 (21) 21.0
 
Jan. 21, 2020, 7 p.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
 
Jan. 21, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 15.9 μg/m3 (58) 58.0
 
Jan. 21, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 13.9 μg/m3 (54) 54.0
 
Jan. 21, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 17.0 μg/m3 (61) 61.0
 
Jan. 21, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 9.2 μg/m3 (38) 38.0
 
Jan. 21, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 4.2 μg/m3 (18) 18.0
 
Jan. 21, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 12.7 μg/m3 (51) 51.0
 
Jan. 21, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 14.0 μg/m3 (54) 54.0
 
Jan. 21, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 7.3 μg/m3 (30) 30.0
 
Jan. 21, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 12.9 μg/m3 (52) 52.0
 
Jan. 21, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 12.5 μg/m3 (51) 51.0
 
Jan. 21, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 12.6 μg/m3 (51) 51.0
 
Jan. 21, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (21) 10.9 μg/m3 (45) 45.0
 
Jan. 21, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (22) 30.4 μg/m3 (89) 89.0
 
Jan. 21, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (24) 26.6 μg/m3 (81) 81.0
 
Jan. 21, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 36.0 μg/m3 (33) 36.0 μg/m3 (101) 101.0
 
Jan. 21, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 35.0 μg/m3 (32) 33.0 μg/m3 (95) 95.0
 
Jan. 21, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (27) 29.5 μg/m3 (87) 87.0
 
Jan. 21, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) 20.8 μg/m3 (69) 69.0
 
Jan. 21, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 13.9 μg/m3 (54) 54.0
 
Jan. 20, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A -2.0 μg/m3 (0) 2.8 μg/m3 (12) 12.0
 
Jan. 20, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 5.8 μg/m3 (24) 24.0
 
Jan. 20, 2020, 9 p.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
Jan. 20, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 4.9 μg/m3 (20) 20.0
 
Jan. 20, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 9.1 μg/m3 (38) 38.0
 
Jan. 20, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 14.6 μg/m3 (56) 56.0
 
Jan. 20, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 13.5 μg/m3 (53) 53.0
 
Jan. 20, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 8.8 μg/m3 (37) 37.0
 
Jan. 20, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 2.9 μg/m3 (12) 15.0
 
Jan. 20, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 11.1 μg/m3 (46) 46.0
 
Jan. 20, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 9.2 μg/m3 (38) 38.0
 
Jan. 20, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 6.0 μg/m3 (25) 25.0
 
Jan. 20, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 6.9 μg/m3 (29) 29.0
 
Jan. 20, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 13.5 μg/m3 (53) 53.0
 
Jan. 20, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 22.1 μg/m3 (71) 71.0
 
Jan. 20, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (26) 35.1 μg/m3 (99) 99.0
 
Jan. 20, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 43.0 μg/m3 (39) 44.2 μg/m3 (122) 122.0
 
Jan. 20, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 39.0 μg/m3 (35) 43.5 μg/m3 (120) 120.0
 
Jan. 20, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (29) 31.7 μg/m3 (92) 92.0
 
Jan. 20, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (29) 35.9 μg/m3 (101) 101.0
 
Jan. 20, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 47.0 μg/m3 (43) 47.0 μg/m3 (129) 129.0
 
Jan. 20, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 43.0 μg/m3 (39) 44.7 μg/m3 (123) 123.0
 
Jan. 20, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (26) 34.9 μg/m3 (99) 99.0
 
Jan. 20, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 17.6 μg/m3 (62) 62.0
 
Jan. 19, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 20.1 μg/m3 (67) 67.0
 
Jan. 19, 2020, 10 p.m. 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 (10) 10.0
 
Jan. 19, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (1) 0.9 μg/m3 (4) 4.0
 
Jan. 19, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 7.5 μg/m3 (31) 31.0
 
Jan. 19, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 17.5 μg/m3 (62) 62.0
 
Jan. 19, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 15.5 μg/m3 (57) 57.0
 
Jan. 19, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 23.9 μg/m3 (75) 75.0
 
Jan. 19, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (25) 32.8 μg/m3 (94) 94.0
 
Jan. 19, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (22) 28.2 μg/m3 (84) 84.0
 
Jan. 19, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (20) 26.0 μg/m3 (80) 80.0
 
Jan. 19, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 20.4 μg/m3 (68) 68.0
 
Jan. 19, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 18.0 μg/m3 (63) 63.0
 
Jan. 19, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 29.6 μg/m3 (87) 87.0
 
Jan. 19, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 42.0 μg/m3 (38) 40.5 μg/m3 (112) 112.0
 
Jan. 19, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 44.0 μg/m3 (40) 48.8 μg/m3 (133) 133.0
 
Jan. 19, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 38.0 μg/m3 (35) 36.2 μg/m3 (102) 102.0
 
Jan. 19, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (25) 15.1 μg/m3 (57) 57.0
 
Jan. 19, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (25) 32.5 μg/m3 (94) 94.0
 
Jan. 19, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 40.0 μg/m3 (36) 44.9 μg/m3 (124) 124.0
 
Jan. 19, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 43.0 μg/m3 (39) 47.5 μg/m3 (130) 130.0
 
Jan. 19, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 38.0 μg/m3 (35) 36.7 μg/m3 (103) 103.0
 
Jan. 19, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (21) 25.2 μg/m3 (78) 78.0
 
Jan. 19, 2020, 1 a.m. 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
 
Jan. 19, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 8.7 μg/m3 (36) 36.0
 
Jan. 18, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 8.8 μg/m3 (37) 37.0
 
Jan. 18, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 9.8 μg/m3 (41) 41.0
 
Jan. 18, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 10.1 μg/m3 (42) 42.0
 
Jan. 18, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 13.1 μg/m3 (52) 52.0
 
Jan. 18, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 12.1 μg/m3 (50) 50.0
 
Jan. 18, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 20.6 μg/m3 (68) 68.0
 
Jan. 18, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (24) 27.7 μg/m3 (83) 83.0
 
Jan. 18, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (25) 37.3 μg/m3 (104) 104.0
 
Jan. 18, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 30.6 μg/m3 (90) 90.0
 
Jan. 18, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 20.0 μg/m3 (67) 67.0
 
Jan. 18, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (20) 28.2 μg/m3 (84) 84.0
 
Jan. 18, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (20) 25.9 μg/m3 (80) 80.0
 
Jan. 18, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (26) 35.0 μg/m3 (99) 99.0
 
Jan. 18, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 35.0 μg/m3 (32) 38.0 μg/m3 (106) 106.0
 
Jan. 18, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 36.0 μg/m3 (33) 37.6 μg/m3 (105) 105.0
 
Jan. 18, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 40.0 μg/m3 (36) 47.7 μg/m3 (130) 130.0
 
Jan. 18, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 45.0 μg/m3 (41) 47.2 μg/m3 (129) 129.0
 
Jan. 18, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 48.0 μg/m3 (44) 49.1 μg/m3 (134) 134.0
 
Jan. 18, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 43.0 μg/m3 (39) 47.8 μg/m3 (131) 131.0
 
Jan. 18, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 49.0 μg/m3 (45) 51.2 μg/m3 (139) 139.0
 
Jan. 18, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 52.0 μg/m3 (47) 50.6 μg/m3 (138) 138.0
 
Jan. 18, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 38.0 μg/m3 (35) 37.7 μg/m3 (106) 106.0
 
Jan. 18, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (29) 30.0 μg/m3 (88) 88.0
 
Jan. 18, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (29) 34.0 μg/m3 (97) 97.0
 
Jan. 17, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (25) 28.1 μg/m3 (84) 84.0
 
Jan. 17, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 17.7 μg/m3 (62) 62.0
 
Jan. 17, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (23) 20.6 μg/m3 (68) 68.0
 
Jan. 17, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 18.8 μg/m3 (64) 64.0
 
Jan. 17, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 21.2 μg/m3 (70) 70.0
 
Jan. 17, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 20.9 μg/m3 (69) 69.0
 
Jan. 17, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (20) 28.9 μg/m3 (86) 86.0
 
Jan. 17, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 27.6 μg/m3 (83) 83.0
 
Jan. 17, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (20) 25.4 μg/m3 (79) 79.0
 
Jan. 17, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 21.8 μg/m3 (71) 71.0
 
Jan. 17, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) 17.0 μg/m3 (61) 61.0
 
Jan. 17, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (26) 31.0 μg/m3 (90) 90.0
 
Jan. 17, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 36.0 μg/m3 (33) 41.2 μg/m3 (114) 114.0
 
Jan. 17, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 38.0 μg/m3 (35) 43.5 μg/m3 (120) 120.0
 
Jan. 17, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 41.0 μg/m3 (37) 35.0 μg/m3 (99) 99.0
 
Jan. 17, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 43.0 μg/m3 (39) 42.0 μg/m3 (116) 116.0
 
Jan. 17, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (29) 23.2 μg/m3 (74) 74.0
 
Jan. 17, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (29) 33.9 μg/m3 (97) 97.0
 
Jan. 17, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 31.0 μg/m3 (28) 34.8 μg/m3 (99) 99.0
 
Jan. 17, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (25) 26.0 μg/m3 (80) 80.0
 
Jan. 17, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (27) 32.3 μg/m3 (93) 93.0
 
Jan. 17, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 31.0 μg/m3 (28) 30.2 μg/m3 (89) 89.0
 
Jan. 17, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 27.0 μg/m3 (82) 82.0
 
Jan. 17, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 15.5 μg/m3 (57) 57.0
 
Jan. 16, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) N/A 13.0
 
Jan. 16, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 7.4 μg/m3 (31) 31.0
 
Jan. 16, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 9.7 μg/m3 (40) 40.0
 
Jan. 16, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 10.2 μg/m3 (42) 42.0
 
Jan. 16, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 11.9 μg/m3 (50) 50.0
 
Jan. 16, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 16.2 μg/m3 (59) 59.0
 
Jan. 16, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 18.9 μg/m3 (65) 65.0
 
Jan. 16, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (23) 21.7 μg/m3 (71) 71.0
 
Jan. 16, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (23) 18.1 μg/m3 (63) 63.0
 
Jan. 16, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 17.4 μg/m3 (61) 61.0
 
Jan. 16, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 18.6 μg/m3 (64) 64.0
 
Jan. 16, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 28.4 μg/m3 (85) 85.0
 
Jan. 16, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 23.0 μg/m3 (73) 73.0
 
Jan. 16, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 20.9 μg/m3 (69) 69.0
 
Jan. 16, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (22) 23.4 μg/m3 (74) 74.0
 
Jan. 16, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 17.9 μg/m3 (63) 63.0
 
Jan. 16, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (27) 6.0 μg/m3 (25) 27.0
 
Jan. 16, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 24.2 μg/m3 (76) 76.0
 
Jan. 16, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (26) 26.1 μg/m3 (80) 80.0
 
Jan. 16, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (27) 27.3 μg/m3 (83) 83.0
 
Jan. 16, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (24) 27.7 μg/m3 (83) 83.0
 
Jan. 16, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 35.0 μg/m3 (32) 31.0 μg/m3 (90) 90.0
 
Jan. 16, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 33.0 μg/m3 (30) 32.9 μg/m3 (94) 94.0
 
Jan. 16, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 18.2 μg/m3 (63) 63.0
 
Jan. 15, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 1.9 μg/m3 (8) 9.0
 
Jan. 15, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) -0.5 μg/m3 (0) 5.0
 
Jan. 15, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 4.1 μg/m3 (17) 17.0
 
Jan. 15, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A -1.0 μg/m3 (0) 3.1 μg/m3 (13) 13.0