AQSQID: 300530018

Site Name: Libby Courthouse

Location: Libby (Minnesota Ave), MT

Reporting: True, Located: True

Current AQI: 0.0

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
March 30, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A -0.2 μg/m3 (0) N/A
March 30, 2020, 2 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
 
March 30, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A -2.0 μg/m3 (0) 5.6 μg/m3 (23) 23.0
 
March 30, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) 3.7 μg/m3 (15) 15.0
 
March 30, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 2.1 μg/m3 (9) 9.0
 
March 30, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) 4.6 μg/m3 (19) 19.0
 
March 30, 2020, 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
 
March 30, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 9.3 μg/m3 (39) 39.0
 
March 30, 2020, 7 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
 
March 30, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 8.1 μg/m3 (34) 34.0
 
March 30, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 7.0 μg/m3 (29) 29.0
 
March 30, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 3.8 μg/m3 (16) 16.0
 
March 30, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) -0.6 μg/m3 (0) 5.0
 
March 30, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 3.7 μg/m3 (15) 15.0
 
March 30, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) -2.6 μg/m3 (0) 3.0
 
March 30, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (1) 12.2 μg/m3 (50) 50.0
 
March 29, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 6.5 μg/m3 (27) 27.0
 
March 29, 2020, 10 p.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
 
March 29, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) -3.1 μg/m3 (0) 2.0
 
March 29, 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) 2.3 μg/m3 (10) 10.0
 
March 29, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 1.4 μg/m3 (6) 6.0
 
March 29, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 7.9 μg/m3 (33) 33.0
 
March 29, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 9.9 μg/m3 (41) 41.0
 
March 29, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 1.9 μg/m3 (8) 15.0
 
March 29, 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) 5.4 μg/m3 (23) 23.0
 
March 29, 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) 17.1 μg/m3 (61) 61.0
 
March 29, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 9.2 μg/m3 (38) 38.0
 
March 29, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 14.4 μg/m3 (55) 55.0
 
March 29, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 10.4 μg/m3 (43) 43.0
 
March 29, 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) 11.0 μg/m3 (46) 46.0
 
March 29, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 11.2 μg/m3 (47) 47.0
 
March 29, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 9.9 μg/m3 (41) 41.0
 
March 29, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 4.0 μg/m3 (17) 17.0
 
March 29, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 8.1 μg/m3 (34) 34.0
 
March 29, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 5.6 μg/m3 (23) 23.0
 
March 29, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 7.8 μg/m3 (32) 32.0
 
March 29, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 6.3 μg/m3 (26) 26.0
 
March 29, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 2.8 μg/m3 (12) 12.0
 
March 29, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 3.8 μg/m3 (16) 16.0
 
March 29, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A -1.0 μg/m3 (0) 8.7 μg/m3 (36) 36.0
 
March 28, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A -1.0 μg/m3 (0) 18.0 μg/m3 (63) 63.0
 
March 28, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) -1.6 μg/m3 (0) 5.0
 
March 28, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 1.2 μg/m3 (5) 5.0
 
March 28, 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) -0.4 μg/m3 (0) 2.0
 
March 28, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) 1.4 μg/m3 (6) 6.0
 
March 28, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 6.3 μg/m3 (26) 26.0
 
March 28, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) 10.5 μg/m3 (44) 44.0
 
March 28, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 10.3 μg/m3 (43) 43.0
 
March 28, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 13.8 μg/m3 (54) 54.0
 
March 28, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 9.3 μg/m3 (39) 39.0
 
March 28, 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) 15.1 μg/m3 (57) 57.0
 
March 28, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 8.5 μg/m3 (35) 35.0
 
March 28, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 8.6 μg/m3 (36) 36.0
 
March 28, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 15.3 μg/m3 (57) 57.0
 
March 28, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) 18.9 μg/m3 (65) 65.0
 
March 28, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) 20.0 μg/m3 (67) 67.0
 
March 28, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (24) 24.7 μg/m3 (77) 77.0
 
March 28, 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) 16.4 μg/m3 (59) 59.0
 
March 28, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (22) 19.0 μg/m3 (65) 65.0
 
March 28, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (22) 13.9 μg/m3 (54) 54.0
 
March 28, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 7.6 μg/m3 (32) 32.0
 
March 28, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 4.2 μg/m3 (18) 18.0
 
March 28, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) -0.3 μg/m3 (0) 12.0
 
March 28, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 0.4 μg/m3 (2) 10.0
 
March 27, 2020, 11 p.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
 
March 27, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 5.5 μg/m3 (23) 23.0
 
March 27, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 1.2 μg/m3 (5) 10.0
 
March 27, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 2.1 μg/m3 (9) 12.0
 
March 27, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 2.4 μg/m3 (10) 11.0
 
March 27, 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) 4.9 μg/m3 (20) 20.0
 
March 27, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 7.6 μg/m3 (32) 32.0
 
March 27, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (22) 25.9 μg/m3 (80) 80.0
 
March 27, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (27) 24.3 μg/m3 (76) 76.0
 
March 27, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (27) 17.4 μg/m3 (61) 61.0
 
March 27, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 12.2 μg/m3 (50) 50.0
 
March 27, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 9.1 μg/m3 (38) 38.0
 
March 27, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 8.8 μg/m3 (37) 37.0
 
March 27, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 15.5 μg/m3 (57) 57.0
 
March 27, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 3.9 μg/m3 (16) 16.0
 
March 27, 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) 15.7 μg/m3 (58) 58.0
 
March 27, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 15.1 μg/m3 (57) 57.0
 
March 27, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) 14.0 μg/m3 (54) 54.0
 
March 27, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) 15.2 μg/m3 (57) 57.0
 
March 27, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) 12.4 μg/m3 (51) 51.0
 
March 27, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 5.9 μg/m3 (25) 25.0
 
March 27, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) -3.4 μg/m3 (0) 7.0
 
March 27, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 1.0 μg/m3 (4) 5.0
 
March 27, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 0.0 μg/m3 (0) 12.0
 
March 26, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) N/A 18.0
 
March 26, 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) 3.7 μg/m3 (15) 15.0
 
March 26, 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) 0.1 μg/m3 (0) 7.0
 
March 26, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) -0.4 μg/m3 (0) 11.0
 
March 26, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 1.3 μg/m3 (5) 13.0
 
March 26, 2020, 6 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
 
March 26, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 7.1 μg/m3 (30) 30.0
 
March 26, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 16.7 μg/m3 (60) 60.0
 
March 26, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (21) 17.0 μg/m3 (61) 61.0
 
March 26, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (21) 14.4 μg/m3 (55) 55.0
 
March 26, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 17.1 μg/m3 (61) 61.0
 
March 26, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 27.0 μg/m3 (25) 21.3 μg/m3 (70) 70.0
 
March 26, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (20) 20.5 μg/m3 (68) 68.0
 
March 26, 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) 20.5 μg/m3 (68) 68.0
 
March 26, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (20) 16.7 μg/m3 (60) 60.0
 
March 26, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 22.8 μg/m3 (73) 73.0
 
March 26, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 25.6 μg/m3 (79) 79.0
 
March 26, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 11.9 μg/m3 (50) 50.0
 
March 26, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 12.7 μg/m3 (51) 51.0
 
March 26, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (23) 13.6 μg/m3 (53) 53.0
 
March 26, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.0 μg/m3 (18) 11.8 μg/m3 (49) 49.0
 
March 26, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 8.9 μg/m3 (37) 37.0
 
March 26, 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) -0.7 μg/m3 (0) 13.0
 
March 26, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) -0.5 μg/m3 (0) 10.0
 
March 25, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 2.1 μg/m3 (9) 9.0
 
March 25, 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) -1.4 μg/m3 (0) 11.0
 
March 25, 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) 0.7 μg/m3 (3) 7.0
 
March 25, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) -0.6 μg/m3 (0) 6.0
 
March 25, 2020, 7 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 (5) 5.0
 
March 25, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 6.3 μg/m3 (26) 26.0
 
March 25, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 8.6 μg/m3 (36) 36.0
 
March 25, 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) 15.0 μg/m3 (56) 56.0
 
March 25, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 19.6 μg/m3 (66) 66.0
 
March 25, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 8.3 μg/m3 (35) 35.0
 
March 25, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 6.9 μg/m3 (29) 29.0
 
March 25, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 12.6 μg/m3 (51) 51.0
 
March 25, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 10.3 μg/m3 (43) 43.0
 
March 25, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 14.9 μg/m3 (56) 56.0
 
March 25, 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) 16.2 μg/m3 (59) 59.0
 
March 25, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 18.6 μg/m3 (64) 64.0
 
March 25, 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) 11.8 μg/m3 (49) 49.0
 
March 25, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 11.8 μg/m3 (49) 49.0
 
March 25, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 13.1 μg/m3 (52) 52.0
 
March 25, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 6.2 μg/m3 (26) 26.0
 
March 25, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 4.7 μg/m3 (20) 20.0
 
March 25, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) -1.4 μg/m3 (0) 9.0
 
March 25, 2020, 1 a.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 (7) 7.0
 
March 25, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) -3.6 μg/m3 (0) 5.0
 
March 24, 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) N/A 4.0
 
March 24, 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) 1.4 μg/m3 (6) 6.0
 
March 24, 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) -3.2 μg/m3 (0) 3.0
 
March 24, 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) -0.8 μg/m3 (0) 5.0
 
March 24, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 3.1 μg/m3 (13) 13.0
 
March 24, 2020, 6 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
 
March 24, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 7.9 μg/m3 (33) 33.0
 
March 24, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 9.5 μg/m3 (40) 40.0
 
March 24, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 5.0 μg/m3 (21) 21.0
 
March 24, 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) 13.0 μg/m3 (52) 52.0
 
March 24, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 9.9 μg/m3 (41) 41.0
 
March 24, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 6.9 μg/m3 (29) 29.0
 
March 24, 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) 6.7 μg/m3 (28) 28.0
 
March 24, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 8.4 μg/m3 (35) 35.0
 
March 24, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 7.6 μg/m3 (32) 32.0
 
March 24, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 4.2 μg/m3 (18) 18.0
 
March 24, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 12.3 μg/m3 (51) 51.0
 
March 24, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 12.6 μg/m3 (51) 51.0
 
March 24, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 7.2 μg/m3 (30) 30.0
 
March 24, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 0.0 μg/m3 (0) 10.0
 
March 24, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (23) 9.8 μg/m3 (41) 41.0
 
March 24, 2020, 2 a.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
 
March 24, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 1.2 μg/m3 (5) 19.0
 
March 24, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 4.6 μg/m3 (19) 19.0
 
March 23, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) -2.0 μg/m3 (0) 19.0
 
March 23, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (24) 6.0 μg/m3 (25) 25.0
 
March 23, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 33.0 μg/m3 (30) 2.9 μg/m3 (12) 30.0
 
March 23, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (22) 2.0 μg/m3 (8) 22.0
 
March 23, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 43.0 μg/m3 (39) 15.4 μg/m3 (57) 57.0
 
March 23, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 33.0 μg/m3 (30) 12.6 μg/m3 (51) 51.0
 
March 23, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (31) 13.8 μg/m3 (54) 54.0
 
March 23, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 39.0 μg/m3 (35) 24.2 μg/m3 (76) 76.0