AQSQID: 300830002

Site Name: Sidney 201

Location: Lambert (Montana Hwy 201), MT

Reporting: True, Located: True

Current AQI: 28.0

Lambert (Montana Hwy 201) MT, US: 47.8679, -104.676864

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 21, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 6.0 μg/m3 (5) -0.7 μg/m3 (0) 28.0
 
Jan. 21, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 12.0 μg/m3 (11) -0.3 μg/m3 (0) 26.0
 
Jan. 21, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 9.0 μg/m3 (8) -3.7 μg/m3 (0) 25.0
 
Jan. 21, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 6.0 μg/m3 (5) -1.8 μg/m3 (0) 24.0
 
Jan. 21, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 1.0 μg/m3 (1) 2.4 μg/m3 (10) 24.0
 
Jan. 21, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 2.0 μg/m3 (2) 5.0 μg/m3 (21) 25.0
 
Jan. 21, 2020, noon N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 9.0 μg/m3 (8) -1.0 μg/m3 (0) 25.0
 
Jan. 21, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 4.0 μg/m3 (4) N/A 25.0
 
Jan. 21, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 5.0 μg/m3 (5) 1.3 μg/m3 (5) 25.0
 
Jan. 21, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 5.0 μg/m3 (5) 0.0 μg/m3 (0) 26.0
 
Jan. 21, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 3.0 μg/m3 (3) 6.7 μg/m3 (28) 28.0
 
Jan. 21, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 0.0 μg/m3 (0) 7.6 μg/m3 (32) 32.0
 
Jan. 21, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 5.0 μg/m3 (5) 0.9 μg/m3 (4) 28.0
 
Jan. 21, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 5.0 μg/m3 (5) -2.9 μg/m3 (0) 28.0
 
Jan. 21, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 6.0 μg/m3 (5) -2.9 μg/m3 (0) 28.0
 
Jan. 21, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 3.0 μg/m3 (3) -1.4 μg/m3 (0) 28.0
 
Jan. 21, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 1.0 μg/m3 (1) -3.1 μg/m3 (0) 28.0
 
Jan. 21, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 5.0 μg/m3 (5) 4.1 μg/m3 (17) 26.0
 
Jan. 21, 2020, midnight N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 5.0 μg/m3 (5) -0.7 μg/m3 (0) 25.0
 
Jan. 20, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A -1.0 μg/m3 (0) 0.0 μg/m3 (0) 26.0
 
Jan. 20, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 6.0 μg/m3 (5) 1.7 μg/m3 (7) 28.0
 
Jan. 20, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 7.0 μg/m3 (6) -2.8 μg/m3 (0) 27.0
 
Jan. 20, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 13.0 μg/m3 (12) N/A 26.0
 
Jan. 20, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 19.0 μg/m3 (17) N/A 26.0
 
Jan. 20, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 9.0 μg/m3 (8) N/A 26.0
 
Jan. 20, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 2.0 μg/m3 (2) -3.0 μg/m3 (0) 26.0
 
Jan. 20, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 3.0 μg/m3 (3) 3.4 μg/m3 (14) 25.0
 
Jan. 20, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A N/A 25.0
 
Jan. 20, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 3.0 μg/m3 (3) 0.2 μg/m3 (1) 25.0
 
Jan. 20, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 6.0 μg/m3 (5) 2.6 μg/m3 (11) 24.0
 
Jan. 20, 2020, noon N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A -1.0 μg/m3 (0) 2.4 μg/m3 (10) 25.0
 
Jan. 20, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 5.0 μg/m3 (5) 1.3 μg/m3 (5) 24.0
 
Jan. 20, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 5.0 μg/m3 (5) -1.7 μg/m3 (0) 24.0
 
Jan. 20, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 4.0 μg/m3 (4) -0.5 μg/m3 (0) 24.0
 
Jan. 20, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 4.0 μg/m3 (4) -1.4 μg/m3 (0) 25.0
 
Jan. 20, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 10.0 μg/m3 (9) N/A 24.0
 
Jan. 20, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 5.0 μg/m3 (5) 5.7 μg/m3 (24) 24.0
 
Jan. 20, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 2.0 μg/m3 (2) 4.8 μg/m3 (20) 23.0
 
Jan. 20, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 7.0 μg/m3 (6) 1.7 μg/m3 (7) 23.0
 
Jan. 20, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 5.0 μg/m3 (5) 2.3 μg/m3 (10) 21.0
 
Jan. 20, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 6.0 μg/m3 (5) 4.7 μg/m3 (20) 24.0
 
Jan. 20, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 6.0 μg/m3 (5) 4.2 μg/m3 (18) 25.0
 
Jan. 20, 2020, midnight N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 5.0 μg/m3 (5) 11.0 μg/m3 (46) 46.0
 
Jan. 19, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 6.0 μg/m3 (5) 0.2 μg/m3 (1) 25.0
 
Jan. 19, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 5.0 μg/m3 (5) 0.9 μg/m3 (4) 26.0
 
Jan. 19, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 0.0 μg/m3 (0) 0.5 μg/m3 (2) 28.0
 
Jan. 19, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A -2.0 μg/m3 (0) 3.7 μg/m3 (15) 28.0
 
Jan. 19, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 5.0 μg/m3 (5) 2.9 μg/m3 (12) 27.0
 
Jan. 19, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 8.0 μg/m3 (7) N/A 26.0
 
Jan. 19, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 4.0 μg/m3 (4) N/A 25.0
 
Jan. 19, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A -2.0 μg/m3 (0) -4.9 μg/m3 (0) 23.0
 
Jan. 19, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 2.0 μg/m3 (2) 6.1 μg/m3 (25) 25.0
 
Jan. 19, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 6.0 μg/m3 (5) 7.0 μg/m3 (29) 29.0
 
Jan. 19, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 4.0 μg/m3 (4) 4.3 μg/m3 (18) 18.0
 
Jan. 19, 2020, noon N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 3.0 μg/m3 (3) 9.6 μg/m3 (40) 40.0
 
Jan. 19, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 2.0 μg/m3 (2) 0.3 μg/m3 (1) 21.0
 
Jan. 19, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 4.0 μg/m3 (4) 2.5 μg/m3 (10) 21.0
 
Jan. 19, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 8.0 μg/m3 (7) 5.4 μg/m3 (23) 23.0
 
Jan. 19, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 5.0 μg/m3 (5) 2.2 μg/m3 (9) 21.0
 
Jan. 19, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 6.0 μg/m3 (5) 11.1 μg/m3 (46) 46.0
 
Jan. 19, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 2.0 μg/m3 (2) 6.1 μg/m3 (25) 25.0
 
Jan. 19, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 7.0 μg/m3 (6) 5.6 μg/m3 (23) 24.0
 
Jan. 19, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 7.0 μg/m3 (6) 2.0 μg/m3 (8) 25.0
 
Jan. 19, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 0.0 μg/m3 (0) 9.0 μg/m3 (38) 38.0
 
Jan. 19, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 7.0 μg/m3 (6) 9.9 μg/m3 (41) 41.0
 
Jan. 19, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 5.0 μg/m3 (5) 10.1 μg/m3 (42) 42.0
 
Jan. 19, 2020, midnight N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A -3.0 μg/m3 (0) 7.3 μg/m3 (30) 30.0
 
Jan. 18, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 0.0 μg/m3 (0) 2.3 μg/m3 (10) 27.0
 
Jan. 18, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 1.0 μg/m3 (1) 4.1 μg/m3 (17) 28.0
 
Jan. 18, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 3.0 μg/m3 (3) 1.4 μg/m3 (6) 28.0
 
Jan. 18, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 4.0 μg/m3 (4) 4.9 μg/m3 (20) 29.0
 
Jan. 18, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 7.0 μg/m3 (6) 4.8 μg/m3 (20) 28.0
 
Jan. 18, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 9.0 μg/m3 (8) 0.2 μg/m3 (1) 27.0
 
Jan. 18, 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) 3.3 μg/m3 (14) 14.0
 
Jan. 18, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 3.4 μg/m3 (14) 14.0
 
Jan. 18, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 6.0 μg/m3 (25) 25.0
 
Jan. 18, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 9.0 μg/m3 (8) 8.3 μg/m3 (35) 35.0
 
Jan. 18, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 11.0 μg/m3 (10) 5.7 μg/m3 (24) 24.0
 
Jan. 18, 2020, noon N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 12.0 μg/m3 (11) 8.1 μg/m3 (34) 34.0
 
Jan. 18, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 9.0 μg/m3 (8) 10.4 μg/m3 (43) 43.0
 
Jan. 18, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 9.0 μg/m3 (8) 10.0 μg/m3 (42) 42.0
 
Jan. 18, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 15.0 μg/m3 (14) 16.5 μg/m3 (60) 60.0
 
Jan. 18, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 19.0 μg/m3 (17) 24.4 μg/m3 (76) 76.0
 
Jan. 18, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 20.0 μg/m3 (18) 14.4 μg/m3 (55) 55.0
 
Jan. 18, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 14.0 μg/m3 (13) 7.0 μg/m3 (29) 29.0
 
Jan. 18, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 10.0 μg/m3 (9) 9.9 μg/m3 (41) 41.0
 
Jan. 18, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 14.0 μg/m3 (13) 6.9 μg/m3 (29) 29.0
 
Jan. 18, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 11.0 μg/m3 (10) 6.8 μg/m3 (28) 28.0
 
Jan. 18, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 12.0 μg/m3 (11) 8.1 μg/m3 (34) 34.0
 
Jan. 18, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 16.0 μg/m3 (15) 8.6 μg/m3 (36) 36.0
 
Jan. 18, 2020, midnight N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 15.0 μg/m3 (14) 9.0 μg/m3 (38) 38.0
 
Jan. 17, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 18.0 μg/m3 (16) 5.8 μg/m3 (24) 24.0
 
Jan. 17, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 15.0 μg/m3 (14) 11.6 μg/m3 (48) 48.0
 
Jan. 17, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 14.0 μg/m3 (13) 5.0 μg/m3 (21) 24.0
 
Jan. 17, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 17.0 μg/m3 (15) 10.5 μg/m3 (44) 44.0
 
Jan. 17, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 21.0 μg/m3 (19) 9.4 μg/m3 (39) 39.0
 
Jan. 17, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 24.0 μg/m3 (22) 13.8 μg/m3 (54) 54.0
 
Jan. 17, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 23.0 μg/m3 (21) 6.4 μg/m3 (27) 27.0
 
Jan. 17, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 16.0 μg/m3 (15) 4.4 μg/m3 (18) 22.0
 
Jan. 17, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 17.0 μg/m3 (15) 8.1 μg/m3 (34) 34.0
 
Jan. 17, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 6.0 μg/m3 (5) 10.2 μg/m3 (42) 42.0
 
Jan. 17, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 9.0 μg/m3 (8) 5.0 μg/m3 (21) 22.0
 
Jan. 17, 2020, noon N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 10.0 μg/m3 (9) 7.4 μg/m3 (31) 31.0
 
Jan. 17, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 10.0 μg/m3 (9) 6.5 μg/m3 (27) 27.0
 
Jan. 17, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 5.0 μg/m3 (5) 6.5 μg/m3 (27) 27.0
 
Jan. 17, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 3.0 μg/m3 (3) 6.1 μg/m3 (25) 25.0
 
Jan. 17, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 9.0 μg/m3 (8) 7.1 μg/m3 (30) 30.0
 
Jan. 17, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 6.0 μg/m3 (5) 5.6 μg/m3 (23) 24.0
 
Jan. 17, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 11.0 μg/m3 (10) 5.1 μg/m3 (21) 24.0
 
Jan. 17, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 7.0 μg/m3 (6) 3.6 μg/m3 (15) 24.0
 
Jan. 17, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 10.0 μg/m3 (9) 7.1 μg/m3 (30) 30.0
 
Jan. 17, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 9.0 μg/m3 (8) 4.1 μg/m3 (17) 24.0
 
Jan. 17, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 8.0 μg/m3 (7) 8.7 μg/m3 (36) 36.0
 
Jan. 17, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 9.0 μg/m3 (8) 2.0 μg/m3 (8) 25.0
 
Jan. 17, 2020, midnight N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 7.0 μg/m3 (6) 0.4 μg/m3 (2) 26.0
 
Jan. 16, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 6.0 μg/m3 (5) -3.7 μg/m3 (0) 26.0
 
Jan. 16, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 10.0 μg/m3 (9) 2.8 μg/m3 (12) 26.0
 
Jan. 16, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 7.0 μg/m3 (6) -0.3 μg/m3 (0) 26.0
 
Jan. 16, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 13.0 μg/m3 (12) 3.5 μg/m3 (15) 26.0
 
Jan. 16, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 11.0 μg/m3 (10) -3.2 μg/m3 (0) 25.0
 
Jan. 16, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 7.0 μg/m3 (6) -1.4 μg/m3 (0) 25.0
 
Jan. 16, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 10.0 μg/m3 (9) -1.9 μg/m3 (0) 25.0
 
Jan. 16, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 1.0 μg/m3 (1) -0.6 μg/m3 (0) 25.0
 
Jan. 16, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 5.0 μg/m3 (5) 5.5 μg/m3 (23) 25.0
 
Jan. 16, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 5.0 μg/m3 (5) 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 0.0 μg/m3 (0) 7.1 μg/m3 (30) 30.0
 
Jan. 16, 2020, noon N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 3.0 μg/m3 (3) 12.1 μg/m3 (50) 50.0
 
Jan. 16, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 4.0 μg/m3 (4) 3.7 μg/m3 (15) 19.0
 
Jan. 16, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 5.0 μg/m3 (5) -1.7 μg/m3 (0) 19.0
 
Jan. 16, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 8.0 μg/m3 (7) 1.4 μg/m3 (6) 21.0
 
Jan. 16, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 9.0 μg/m3 (8) -5.6 μg/m3 (0) 21.0
 
Jan. 16, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 9.0 μg/m3 (8) -4.6 μg/m3 (0) 22.0
 
Jan. 16, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 2.0 μg/m3 (2) 1.6 μg/m3 (7) 24.0
 
Jan. 16, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 5.0 μg/m3 (5) 5.6 μg/m3 (23) 24.0
 
Jan. 16, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 6.0 μg/m3 (5) 6.4 μg/m3 (27) 27.0
 
Jan. 16, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 1.0 μg/m3 (1) 5.1 μg/m3 (21) 24.0
 
Jan. 16, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 6.0 μg/m3 (5) 2.9 μg/m3 (12) 25.0
 
Jan. 16, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 6.0 μg/m3 (5) 11.8 μg/m3 (49) 49.0
 
Jan. 16, 2020, midnight N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 5.0 μg/m3 (5) 9.5 μg/m3 (40) 40.0
 
Jan. 15, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 4.0 μg/m3 (4) 9.3 μg/m3 (39) 39.0
 
Jan. 15, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 0.0 μg/m3 (0) 4.5 μg/m3 (19) 28.0
 
Jan. 15, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 4.0 μg/m3 (4) 4.0 μg/m3 (17) 28.0
 
Jan. 15, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 2.0 μg/m3 (2) 4.6 μg/m3 (19) 28.0
 
Jan. 15, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 8.0 μg/m3 (7) 7.9 μg/m3 (33) 33.0
 
Jan. 15, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 6.0 μg/m3 (5) N/A 27.0
 
Jan. 15, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 3.0 μg/m3 (3) -1.6 μg/m3 (0) 25.0
 
Jan. 15, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 4.0 μg/m3 (4) 7.2 μg/m3 (30) 30.0
 
Jan. 15, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 2.0 μg/m3 (2) 10.0 μg/m3 (42) 42.0
 
Jan. 15, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 1.0 μg/m3 (1) 4.5 μg/m3 (19) 25.0
 
Jan. 15, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 6.0 μg/m3 (5) 5.5 μg/m3 (23) 24.0
 
Jan. 15, 2020, noon N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 4.0 μg/m3 (4) 4.2 μg/m3 (18) 25.0
 
Jan. 15, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 2.0 μg/m3 (2) 7.0 μg/m3 (29) 29.0
 
Jan. 15, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 3.0 μg/m3 (3) 4.1 μg/m3 (17) 25.0
 
Jan. 15, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 0.0 μg/m3 (0) 0.8 μg/m3 (3) 25.0
 
Jan. 15, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 5.0 μg/m3 (5) 2.4 μg/m3 (10) 25.0
 
Jan. 15, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 7.0 μg/m3 (6) 3.2 μg/m3 (13) 26.0
 
Jan. 15, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 5.0 μg/m3 (5) 5.8 μg/m3 (24) 27.0
 
Jan. 15, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 6.0 μg/m3 (5) -0.4 μg/m3 (0) 28.0
 
Jan. 15, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 6.0 μg/m3 (5) 0.2 μg/m3 (1) 28.0
 
Jan. 15, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 6.0 μg/m3 (5) 8.7 μg/m3 (36) 36.0
 
Jan. 15, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 6.0 μg/m3 (5) 3.3 μg/m3 (14) 29.0
 
Jan. 15, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 7.0 μg/m3 (6) -2.0 μg/m3 (0) 29.0
 
Jan. 15, 2020, midnight N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 10.0 μg/m3 (9) 1.6 μg/m3 (7) 28.0
 
Jan. 14, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 2.0 μg/m3 (2) 1.5 μg/m3 (6) 28.0
 
Jan. 14, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 3.0 μg/m3 (3) 5.5 μg/m3 (23) 28.0
 
Jan. 14, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 5.0 μg/m3 (5) 2.7 μg/m3 (11) 28.0
 
Jan. 14, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 3.0 μg/m3 (3) 3.9 μg/m3 (16) 28.0
 
Jan. 14, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 0.0 μg/m3 (0) 4.5 μg/m3 (19) 28.0