AQSQID: 300530018

Site Name: Libby Courthouse

Location: Libby, MT

Reporting: True, Located: True

Current AQI: 89.0

Libby MT, US: 48.3841, -115.548

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 22, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 45.0 μg/m3 (41) 30.1 μg/m3 (89) 89.0
 
March 22, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 69.0 μg/m3 (57) 25.8 μg/m3 (79) 79.0
 
March 22, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 85.0 μg/m3 (65) 36.2 μg/m3 (102) 102.0
 
March 22, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 100.0 μg/m3 (72) 34.8 μg/m3 (99) 99.0
 
March 22, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 136.0 μg/m3 (90) 36.3 μg/m3 (102) 102.0
 
March 22, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 127.0 μg/m3 (86) 25.9 μg/m3 (80) 86.0
 
March 22, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 60.0 μg/m3 (52) 11.7 μg/m3 (49) 52.0
 
March 22, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 54.0 μg/m3 (49) 13.5 μg/m3 (53) 53.0
 
March 21, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 65.0 μg/m3 (55) 9.9 μg/m3 (41) 55.0
 
March 21, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 63.0 μg/m3 (54) 6.7 μg/m3 (28) 54.0
 
March 21, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 58.0 μg/m3 (52) 2.8 μg/m3 (12) 52.0
 
March 21, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 66.0 μg/m3 (56) 6.4 μg/m3 (27) 56.0
 
March 21, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 55.0 μg/m3 (50) -0.7 μg/m3 (0) 50.0
 
March 21, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 57.0 μg/m3 (51) 7.6 μg/m3 (32) 51.0
 
March 21, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 43.0 μg/m3 (39) 2.1 μg/m3 (9) 39.0
 
March 21, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 43.0 μg/m3 (39) 11.7 μg/m3 (49) 49.0
 
March 21, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 80.0 μg/m3 (62) 22.6 μg/m3 (73) 73.0
 
March 21, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 102.0 μg/m3 (74) 20.1 μg/m3 (67) 74.0
 
March 21, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 48.0 μg/m3 (44) 21.2 μg/m3 (70) 70.0
 
March 21, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 39.0 μg/m3 (35) 21.2 μg/m3 (70) 70.0
 
March 21, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (24) 17.3 μg/m3 (61) 61.0
 
March 21, 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) 16.9 μg/m3 (60) 60.0
 
March 21, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (29) 22.9 μg/m3 (73) 73.0
 
March 21, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 36.0 μg/m3 (33) 30.0 μg/m3 (88) 88.0
 
March 21, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 41.0 μg/m3 (37) 17.2 μg/m3 (61) 61.0
 
March 21, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 49.0 μg/m3 (45) 30.6 μg/m3 (90) 90.0
 
March 21, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 84.0 μg/m3 (64) 45.5 μg/m3 (125) 125.0
 
March 21, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 120.0 μg/m3 (82) 41.6 μg/m3 (115) 115.0
 
March 21, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 162.0 μg/m3 (104) 38.7 μg/m3 (108) 108.0
 
March 21, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 145.0 μg/m3 (95) 26.8 μg/m3 (81) 95.0
 
March 21, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 102.0 μg/m3 (74) 16.9 μg/m3 (60) 74.0
 
March 21, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 71.0 μg/m3 (58) 15.0 μg/m3 (56) 58.0
 
March 20, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 41.0 μg/m3 (37) 11.9 μg/m3 (50) 50.0
 
March 20, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 49.0 μg/m3 (45) 2.2 μg/m3 (9) 45.0
 
March 20, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 43.0 μg/m3 (39) 4.1 μg/m3 (17) 39.0
 
March 20, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 61.0 μg/m3 (53) 2.4 μg/m3 (10) 53.0
 
March 20, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 60.0 μg/m3 (52) 4.2 μg/m3 (18) 52.0
 
March 20, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 55.0 μg/m3 (50) 2.4 μg/m3 (10) 50.0
 
March 20, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 33.0 μg/m3 (30) 4.2 μg/m3 (18) 30.0
 
March 20, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (27) 3.0 μg/m3 (12) 27.0
 
March 20, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 65.0 μg/m3 (55) 12.5 μg/m3 (51) 55.0
 
March 20, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 103.0 μg/m3 (74) 26.5 μg/m3 (81) 81.0
 
March 20, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 78.0 μg/m3 (62) 23.3 μg/m3 (74) 74.0
 
March 20, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 40.0 μg/m3 (36) 19.1 μg/m3 (65) 65.0
 
March 20, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (26) 14.4 μg/m3 (55) 55.0
 
March 20, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 20.8 μg/m3 (69) 69.0
 
March 20, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (31) 26.2 μg/m3 (80) 80.0
 
March 20, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 50.0 μg/m3 (45) 32.0 μg/m3 (93) 93.0
 
March 20, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 49.0 μg/m3 (45) 38.8 μg/m3 (108) 108.0
 
March 20, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 71.0 μg/m3 (58) 40.4 μg/m3 (112) 112.0
 
March 20, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 84.0 μg/m3 (64) 42.5 μg/m3 (118) 118.0
 
March 20, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 115.0 μg/m3 (80) 47.5 μg/m3 (130) 130.0
 
March 20, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 157.0 μg/m3 (101) 43.3 μg/m3 (120) 120.0
 
March 20, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 37.7 μg/m3 (106) 106.0
 
March 20, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 74.0 μg/m3 (60) 11.1 μg/m3 (46) 60.0
 
March 20, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 56.0 μg/m3 (50) 6.3 μg/m3 (26) 50.0
 
March 19, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 41.0 μg/m3 (37) 4.2 μg/m3 (18) 37.0
 
March 19, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (26) 1.1 μg/m3 (5) 26.0
 
March 19, 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) 3.6 μg/m3 (15) 31.0
 
March 19, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 46.0 μg/m3 (42) -1.6 μg/m3 (0) 42.0
 
March 19, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 50.0 μg/m3 (45) 2.0 μg/m3 (8) 45.0
 
March 19, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 45.0 μg/m3 (41) 0.7 μg/m3 (3) 41.0
 
March 19, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 33.0 μg/m3 (30) 6.9 μg/m3 (29) 30.0
 
March 19, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 33.0 μg/m3 (30) 17.8 μg/m3 (62) 62.0
 
March 19, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 64.0 μg/m3 (54) 26.9 μg/m3 (82) 82.0
 
March 19, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 106.0 μg/m3 (76) 28.3 μg/m3 (85) 85.0
 
March 19, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 78.0 μg/m3 (62) 20.8 μg/m3 (69) 69.0
 
March 19, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 52.0 μg/m3 (47) 21.3 μg/m3 (70) 70.0
 
March 19, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (22) 18.0 μg/m3 (63) 63.0
 
March 19, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (25) 26.5 μg/m3 (81) 81.0
 
March 19, 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) 28.4 μg/m3 (85) 85.0
 
March 19, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 32.0 μg/m3 (93) 93.0
 
March 19, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 39.0 μg/m3 (35) 34.1 μg/m3 (97) 97.0
 
March 19, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 58.0 μg/m3 (52) 31.3 μg/m3 (91) 91.0
 
March 19, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 90.0 μg/m3 (68) 43.4 μg/m3 (120) 120.0
 
March 19, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 126.0 μg/m3 (86) 45.1 μg/m3 (124) 124.0
 
March 19, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 154.0 μg/m3 (100) 40.6 μg/m3 (113) 113.0
 
March 19, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 117.0 μg/m3 (81) 28.3 μg/m3 (85) 85.0
 
March 19, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 62.0 μg/m3 (54) 8.4 μg/m3 (35) 54.0
 
March 19, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 37.0 μg/m3 (34) 6.3 μg/m3 (26) 34.0
 
March 18, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 44.0 μg/m3 (40) -1.7 μg/m3 (0) 40.0
 
March 18, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 41.0 μg/m3 (37) 1.4 μg/m3 (6) 37.0
 
March 18, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 40.0 μg/m3 (36) 4.7 μg/m3 (20) 36.0
 
March 18, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 49.0 μg/m3 (45) 2.7 μg/m3 (11) 45.0
 
March 18, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 46.0 μg/m3 (42) 0.6 μg/m3 (2) 42.0
 
March 18, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 47.0 μg/m3 (43) 7.2 μg/m3 (30) 43.0
 
March 18, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 41.0 μg/m3 (37) 6.8 μg/m3 (28) 37.0
 
March 18, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 33.0 μg/m3 (30) 14.1 μg/m3 (54) 54.0
 
March 18, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 55.0 μg/m3 (50) 16.4 μg/m3 (59) 59.0
 
March 18, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 74.0 μg/m3 (60) 25.0 μg/m3 (78) 78.0
 
March 18, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 47.0 μg/m3 (43) 24.2 μg/m3 (76) 76.0
 
March 18, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 57.0 μg/m3 (51) 33.1 μg/m3 (95) 95.0
 
March 18, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (26) 22.4 μg/m3 (72) 72.0
 
March 18, 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) 22.4 μg/m3 (72) 72.0
 
March 18, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 35.0 μg/m3 (32) 28.9 μg/m3 (86) 86.0
 
March 18, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 40.0 μg/m3 (36) 37.5 μg/m3 (105) 105.0
 
March 18, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 45.0 μg/m3 (41) 39.3 μg/m3 (110) 110.0
 
March 18, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 53.0 μg/m3 (48) 31.2 μg/m3 (91) 91.0
 
March 18, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 72.0 μg/m3 (58) 38.2 μg/m3 (107) 107.0
 
March 18, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 92.0 μg/m3 (68) 32.5 μg/m3 (94) 94.0
 
March 18, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 99.0 μg/m3 (72) 29.1 μg/m3 (86) 86.0
 
March 18, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 87.0 μg/m3 (66) 26.5 μg/m3 (81) 81.0
 
March 18, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 44.0 μg/m3 (40) 9.3 μg/m3 (39) 40.0
 
March 18, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (20) 6.9 μg/m3 (29) 29.0
 
March 17, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 7.6 μg/m3 (32) 32.0
 
March 17, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 0.0 μg/m3 (0) 7.0
 
March 17, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 1.9 μg/m3 (8) 8.0
 
March 17, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) -2.0 μg/m3 (0) 18.0
 
March 17, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 0.0 μg/m3 (0) 15.0
 
March 17, 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) 3.9 μg/m3 (16) 22.0
 
March 17, 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) 9.4 μg/m3 (39) 39.0
 
March 17, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 12.3 μg/m3 (51) 51.0
 
March 17, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 56.0 μg/m3 (50) 29.1 μg/m3 (86) 86.0
 
March 17, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 50.0 μg/m3 (45) 40.4 μg/m3 (112) 112.0
 
March 17, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 41.0 μg/m3 (37) 27.8 μg/m3 (84) 84.0
 
March 17, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (29) 32.1 μg/m3 (93) 93.0
 
March 17, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 41.0 μg/m3 (37) 36.3 μg/m3 (102) 102.0
 
March 17, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (31) 27.0 μg/m3 (82) 82.0
 
March 17, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 35.0 μg/m3 (32) 29.8 μg/m3 (88) 88.0
 
March 17, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 45.0 μg/m3 (41) 32.7 μg/m3 (94) 94.0
 
March 17, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 45.0 μg/m3 (41) 30.6 μg/m3 (90) 90.0
 
March 17, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 62.0 μg/m3 (54) 38.0 μg/m3 (106) 106.0
 
March 17, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 81.0 μg/m3 (63) 43.6 μg/m3 (120) 120.0
 
March 17, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 88.0 μg/m3 (66) 39.2 μg/m3 (109) 109.0
 
March 17, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 127.0 μg/m3 (86) 44.3 μg/m3 (122) 122.0
 
March 17, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 103.0 μg/m3 (74) 29.0 μg/m3 (86) 86.0
 
March 17, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 46.0 μg/m3 (42) 10.2 μg/m3 (42) 42.0
 
March 17, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (31) 5.9 μg/m3 (25) 31.0
 
March 16, 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) 5.2 μg/m3 (22) 25.0
 
March 16, 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) -0.4 μg/m3 (0) 15.0
 
March 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) 1.0 μg/m3 (4) 20.0
 
March 16, 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) -0.7 μg/m3 (0) 22.0
 
March 16, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 2.1 μg/m3 (9) 25.0
 
March 16, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (27) 4.1 μg/m3 (17) 27.0
 
March 16, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 1.9 μg/m3 (8) 17.0
 
March 16, 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) 12.0 μg/m3 (50) 50.0
 
March 16, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 51.0 μg/m3 (46) 31.1 μg/m3 (91) 91.0
 
March 16, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 56.0 μg/m3 (50) 26.9 μg/m3 (82) 82.0
 
March 16, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (29) 16.3 μg/m3 (59) 59.0
 
March 16, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (27) 24.1 μg/m3 (76) 76.0
 
March 16, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 36.0 μg/m3 (33) 28.7 μg/m3 (86) 86.0
 
March 16, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (24) 22.1 μg/m3 (71) 71.0
 
March 16, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (27) 30.3 μg/m3 (89) 89.0
 
March 16, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 31.0 μg/m3 (28) 23.9 μg/m3 (75) 75.0
 
March 16, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 39.0 μg/m3 (35) 24.8 μg/m3 (77) 77.0
 
March 16, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 55.0 μg/m3 (50) 31.1 μg/m3 (91) 91.0
 
March 16, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 64.0 μg/m3 (54) 30.0 μg/m3 (88) 88.0
 
March 16, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 88.0 μg/m3 (66) 29.6 μg/m3 (87) 87.0
 
March 16, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 102.0 μg/m3 (74) 27.3 μg/m3 (83) 83.0
 
March 16, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 74.0 μg/m3 (60) 15.4 μg/m3 (57) 60.0
 
March 16, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 42.0 μg/m3 (38) 8.7 μg/m3 (36) 38.0
 
March 16, 2019, midnight N/A N/A N/A N/A N/A N/A N/A N/A 36.0 μg/m3 (33) 9.9 μg/m3 (41) 41.0
 
March 15, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 3.6 μg/m3 (15) 18.0
 
March 15, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 2.3 μg/m3 (10) 14.0
 
March 15, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) -3.8 μg/m3 (0) 16.0
 
March 15, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) -3.8 μg/m3 (0) 25.0
 
March 15, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 35.0 μg/m3 (32) -2.7 μg/m3 (0) 32.0
 
March 15, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 45.0 μg/m3 (41) 8.0 μg/m3 (33) 41.0
 
March 15, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 43.0 μg/m3 (39) 12.1 μg/m3 (50) 50.0
 
March 15, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 42.0 μg/m3 (38) 20.2 μg/m3 (67) 67.0
 
March 15, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 57.0 μg/m3 (51) 27.0 μg/m3 (82) 82.0
 
March 15, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 45.0 μg/m3 (41) 16.8 μg/m3 (60) 60.0
 
March 15, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 54.0 μg/m3 (49) 20.1 μg/m3 (67) 67.0
 
March 15, 2019, noon N/A N/A N/A N/A N/A N/A N/A N/A 44.0 μg/m3 (40) 24.8 μg/m3 (77) 77.0
 
March 15, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (29) 27.6 μg/m3 (83) 83.0
 
March 15, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 39.0 μg/m3 (35) 36.8 μg/m3 (103) 103.0
 
March 15, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 38.0 μg/m3 (35) 31.0 μg/m3 (90) 90.0
 
March 15, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (31) 34.2 μg/m3 (97) 97.0