AQSQID: 300750001

Site Name: Broadus

Location: Broadus (Big Powder Riv E Rd), MT

Reporting: True, Located: True

Current AQI: 35.0

Broadus (Big Powder Riv E Rd) MT, US: 45.440295, -105.37028

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
April 10, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 1.0 μg/m3 (1) -0.4 μg/m3 (0) 35.0
 
April 10, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 4.0 μg/m3 (4) -0.4 μg/m3 (0) 36.0
 
April 10, 2020, midnight N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 4.0 μg/m3 (4) 9.9 μg/m3 (41) 41.0
 
April 9, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 9.0 μg/m3 (8) 12.2 μg/m3 (50) 50.0
 
April 9, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 23.0 μg/m3 (21) 3.7 μg/m3 (15) 39.0
 
April 9, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 33.0 μg/m3 (30) 4.8 μg/m3 (20) 38.0
 
April 9, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 55.0 μg/m3 (50) 6.7 μg/m3 (28) 50.0
 
April 9, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 49.0 μg/m3 (45) 5.5 μg/m3 (23) 45.0
 
April 9, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 29.0 μg/m3 (26) 3.4 μg/m3 (14) 36.0
 
April 9, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 18.0 μg/m3 (16) 4.6 μg/m3 (19) 35.0
 
April 9, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 15.0 μg/m3 (14) 6.8 μg/m3 (28) 35.0
 
April 9, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 28.0 μg/m3 (25) 14.1 μg/m3 (54) 54.0
 
April 9, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 30.0 μg/m3 (27) 4.2 μg/m3 (18) 34.0
 
April 9, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 20.0 μg/m3 (18) 5.0 μg/m3 (21) 32.0
 
April 9, 2020, noon N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 3.0 μg/m3 (3) 1.6 μg/m3 (7) 32.0
 
April 9, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 4.0 μg/m3 (4) 1.5 μg/m3 (6) 31.0
 
April 9, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 6.0 μg/m3 (5) 3.7 μg/m3 (15) 32.0
 
April 9, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 18.0 μg/m3 (16) 7.6 μg/m3 (32) 32.0
 
April 9, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 2.0 μg/m3 (2) 8.0 μg/m3 (33) 33.0
 
April 9, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 11.0 μg/m3 (10) 15.4 μg/m3 (57) 57.0
 
April 9, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 7.0 μg/m3 (6) 3.2 μg/m3 (13) 28.0
 
April 9, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 10.0 μg/m3 (9) 2.2 μg/m3 (9) 30.0
 
April 9, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 17.0 μg/m3 (15) 2.4 μg/m3 (10) 29.0
 
April 9, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 28.0 μg/m3 (25) 7.0 μg/m3 (29) 35.0
 
April 9, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 16.0 μg/m3 (15) 4.9 μg/m3 (20) 36.0
 
April 9, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 15.0 μg/m3 (14) 4.2 μg/m3 (18) 38.0
 
April 9, 2020, midnight N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 46.0 μg/m3 (42) 6.2 μg/m3 (26) 42.0
 
April 8, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 32.0 μg/m3 (29) 3.7 μg/m3 (15) 39.0
 
April 8, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 28.0 μg/m3 (25) 2.6 μg/m3 (11) 39.0
 
April 8, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 77.0 μg/m3 (61) 7.8 μg/m3 (32) 61.0
 
April 8, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 58.0 μg/m3 (52) 5.0 μg/m3 (21) 52.0
 
April 8, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 58.0 μg/m3 (52) 2.5 μg/m3 (10) 52.0
 
April 8, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 83.0 μg/m3 (64) 8.8 μg/m3 (37) 64.0
 
April 8, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 33.0 μg/m3 (30) 6.3 μg/m3 (26) 40.0
 
April 8, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 33.0 μg/m3 (30) 10.5 μg/m3 (44) 44.0
 
April 8, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 34.0 μg/m3 (31) 12.9 μg/m3 (52) 52.0
 
April 8, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 30.0 μg/m3 (27) 6.6 μg/m3 (28) 38.0
 
April 8, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 19.0 μg/m3 (17) 5.9 μg/m3 (25) 36.0
 
April 8, 2020, noon N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 7.0 μg/m3 (6) 3.3 μg/m3 (14) 35.0
 
April 8, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 8.0 μg/m3 (7) 6.6 μg/m3 (28) 37.0
 
April 8, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 9.0 μg/m3 (8) 2.5 μg/m3 (10) 36.0
 
April 8, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 9.0 μg/m3 (8) 3.9 μg/m3 (16) 37.0
 
April 8, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 11.0 μg/m3 (10) 8.8 μg/m3 (37) 37.0
 
April 8, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 11.0 μg/m3 (10) 10.7 μg/m3 (45) 45.0
 
April 8, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 10.0 μg/m3 (9) 0.8 μg/m3 (3) 29.0
 
April 8, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 14.0 μg/m3 (13) 6.0 μg/m3 (25) 27.0
 
April 8, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 13.0 μg/m3 (12) 3.2 μg/m3 (13) 28.0
 
April 8, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 20.0 μg/m3 (18) 3.9 μg/m3 (16) 30.0
 
April 8, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 28.0 μg/m3 (25) 6.2 μg/m3 (26) 32.0
 
April 8, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 37.0 μg/m3 (34) 4.5 μg/m3 (19) 36.0
 
April 8, 2020, midnight N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 28.0 μg/m3 (25) 9.3 μg/m3 (39) 39.0
 
April 7, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 34.0 μg/m3 (31) 7.1 μg/m3 (30) 38.0
 
April 7, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 32.0 μg/m3 (29) 2.6 μg/m3 (11) 38.0
 
April 7, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 23.0 μg/m3 (21) 4.9 μg/m3 (20) 35.0
 
April 7, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 10.0 μg/m3 (9) 3.2 μg/m3 (13) 34.0
 
April 7, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 17.0 μg/m3 (15) 0.0 μg/m3 (0) 32.0
 
April 7, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 14.0 μg/m3 (13) 2.9 μg/m3 (12) 31.0
 
April 7, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 3.0 μg/m3 (3) 2.6 μg/m3 (11) 31.0
 
April 7, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 7.0 μg/m3 (6) 4.4 μg/m3 (18) 30.0
 
April 7, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 12.0 μg/m3 (11) 0.9 μg/m3 (4) 25.0
 
April 7, 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) 4.3 μg/m3 (18) 21.0
 
April 7, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 7.0 μg/m3 (6) 3.4 μg/m3 (14) 20.0
 
April 7, 2020, noon N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 6.0 μg/m3 (5) 3.1 μg/m3 (13) 20.0
 
April 7, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 6.0 μg/m3 (5) -0.5 μg/m3 (0) 20.0
 
April 7, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 6.0 μg/m3 (5) 2.6 μg/m3 (11) 16.0
 
April 7, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 5.0 μg/m3 (5) 2.4 μg/m3 (10) 15.0
 
April 7, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 15.0 μg/m3 (14) 5.6 μg/m3 (23) 23.0
 
April 7, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 6.0 μg/m3 (5) 4.6 μg/m3 (19) 19.0
 
April 7, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 7.0 μg/m3 (6) 3.7 μg/m3 (15) 20.0
 
April 7, 2020, 5 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) 0.8 μg/m3 (3) 21.0
 
April 7, 2020, 4 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) 1.5 μg/m3 (6) 25.0
 
April 7, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 6.0 μg/m3 (5) 4.9 μg/m3 (20) 27.0
 
April 7, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 6.0 μg/m3 (5) 1.3 μg/m3 (5) 26.0
 
April 7, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 4.0 μg/m3 (4) 7.1 μg/m3 (30) 30.0
 
April 7, 2020, midnight N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 13.0 μg/m3 (12) 1.7 μg/m3 (7) 26.0
 
April 6, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 63.0 μg/m3 (54) 5.5 μg/m3 (23) 54.0
 
April 6, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 131.0 μg/m3 (88) 15.3 μg/m3 (57) 88.0
 
April 6, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 90.0 μg/m3 (68) 6.4 μg/m3 (27) 68.0
 
April 6, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 54.0 μg/m3 (49) 7.7 μg/m3 (32) 49.0
 
April 6, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 22.0 μg/m3 (20) 2.8 μg/m3 (12) 35.0
 
April 6, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 21.0 μg/m3 (19) 5.7 μg/m3 (24) 32.0
 
April 6, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 18.0 μg/m3 (16) 0.6 μg/m3 (2) 27.0
 
April 6, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 16.0 μg/m3 (15) 4.3 μg/m3 (18) 22.0
 
April 6, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 34.0 μg/m3 (31) 3.2 μg/m3 (13) 31.0
 
April 6, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 43.0 μg/m3 (39) 5.2 μg/m3 (22) 39.0
 
April 6, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 23.0 μg/m3 (21) 2.6 μg/m3 (11) 21.0
 
April 6, 2020, noon N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A 8.0 μg/m3 (7) 3.6 μg/m3 (15) 15.0
 
April 6, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A 10.0 μg/m3 (9) 3.2 μg/m3 (13) 13.0
 
April 6, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A 11.0 μg/m3 (10) 4.9 μg/m3 (20) 20.0
 
April 6, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 11.0 μg/m3 (10) 1.0 μg/m3 (4) 10.0
 
April 6, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 9.0 μg/m3 (8) 3.2 μg/m3 (13) 13.0
 
April 6, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 0.0 μg/m3 (0) 1.2 μg/m3 (5) 15.0
 
April 6, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 9.0 μg/m3 (8) 3.6 μg/m3 (15) 18.0
 
April 6, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 12.0 μg/m3 (11) 1.8 μg/m3 (8) 20.0
 
April 6, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 8.0 μg/m3 (7) 3.7 μg/m3 (15) 22.0
 
April 6, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 8.0 μg/m3 (7) 3.7 μg/m3 (15) 23.0
 
April 6, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 8.0 μg/m3 (7) 3.1 μg/m3 (13) 25.0
 
April 6, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 24.0 μg/m3 (22) 5.6 μg/m3 (23) 28.0
 
April 6, 2020, midnight N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 41.0 μg/m3 (37) 9.9 μg/m3 (41) 41.0
 
April 5, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 22.0 μg/m3 (20) 5.5 μg/m3 (23) 36.0
 
April 5, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 7.0 μg/m3 (6) -0.1 μg/m3 (0) 35.0
 
April 5, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 12.0 μg/m3 (11) 2.3 μg/m3 (10) 35.0
 
April 5, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 7.0 μg/m3 (6) 3.2 μg/m3 (13) 34.0
 
April 5, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 8.0 μg/m3 (7) 4.4 μg/m3 (18) 33.0
 
April 5, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 9.0 μg/m3 (8) -1.7 μg/m3 (0) 32.0
 
April 5, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 6.0 μg/m3 (5) 2.0 μg/m3 (8) 32.0
 
April 5, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 3.0 μg/m3 (3) 0.5 μg/m3 (2) 31.0
 
April 5, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 7.0 μg/m3 (6) N/A 31.0
 
April 5, 2020, 2 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) -2.4 μg/m3 (0) 28.0
 
April 5, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 4.0 μg/m3 (4) 1.5 μg/m3 (6) 23.0
 
April 5, 2020, noon N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 4.0 μg/m3 (4) 2.0 μg/m3 (8) 20.0
 
April 5, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 3.0 μg/m3 (3) 1.7 μg/m3 (7) 19.0
 
April 5, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 6.0 μg/m3 (5) 1.9 μg/m3 (8) 20.0
 
April 5, 2020, 9 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) 0.7 μg/m3 (3) 21.0
 
April 5, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 1.0 μg/m3 (1) 7.4 μg/m3 (31) 31.0
 
April 5, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 3.0 μg/m3 (3) 3.7 μg/m3 (15) 22.0
 
April 5, 2020, 6 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) 2.2 μg/m3 (9) 23.0
 
April 5, 2020, 5 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) 1.9 μg/m3 (8) 25.0
 
April 5, 2020, 4 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) 2.0 μg/m3 (8) 25.0
 
April 5, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 34.0 μg/m3 (31) 8.4 μg/m3 (35) 35.0
 
April 5, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 58.0 μg/m3 (52) 6.0 μg/m3 (25) 52.0
 
April 5, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 16.0 μg/m3 (15) 2.5 μg/m3 (10) 31.0
 
April 5, 2020, midnight N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 9.0 μg/m3 (8) 3.2 μg/m3 (13) 35.0
 
April 4, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 3.0 μg/m3 (3) 2.0 μg/m3 (8) 35.0
 
April 4, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 21.0 μg/m3 (19) 1.6 μg/m3 (7) 35.0
 
April 4, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 39.0 μg/m3 (35) 6.2 μg/m3 (26) 35.0
 
April 4, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 41.0 μg/m3 (37) 5.7 μg/m3 (24) 37.0
 
April 4, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 8.0 μg/m3 (7) 2.2 μg/m3 (9) 35.0
 
April 4, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 12.0 μg/m3 (11) 1.6 μg/m3 (7) 33.0
 
April 4, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 10.0 μg/m3 (9) 2.3 μg/m3 (10) 30.0
 
April 4, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 11.0 μg/m3 (10) 1.2 μg/m3 (5) 28.0
 
April 4, 2020, 3 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) 4.8 μg/m3 (20) 25.0
 
April 4, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 7.0 μg/m3 (6) 0.0 μg/m3 (0) 25.0
 
April 4, 2020, 1 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) 4.9 μg/m3 (20) 24.0
 
April 4, 2020, noon N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 6.0 μg/m3 (5) 0.3 μg/m3 (1) 25.0
 
April 4, 2020, 11 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) 0.7 μg/m3 (3) 25.0
 
April 4, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 0.0 μg/m3 (0) 5.2 μg/m3 (22) 26.0
 
April 4, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 6.0 μg/m3 (5) 0.7 μg/m3 (3) 26.0
 
April 4, 2020, 8 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) 1.1 μg/m3 (5) 26.0
 
April 4, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 11.0 μg/m3 (10) 3.4 μg/m3 (14) 28.0
 
April 4, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 5.0 μg/m3 (5) 4.1 μg/m3 (17) 28.0
 
April 4, 2020, 5 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) 4.0 μg/m3 (17) 26.0
 
April 4, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 5.0 μg/m3 (5) 3.4 μg/m3 (14) 28.0
 
April 4, 2020, 3 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) 2.7 μg/m3 (11) 28.0
 
April 4, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 5.0 μg/m3 (5) 6.1 μg/m3 (25) 28.0
 
April 4, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 8.0 μg/m3 (7) 4.7 μg/m3 (20) 32.0
 
April 4, 2020, midnight N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 7.0 μg/m3 (6) 3.1 μg/m3 (13) 35.0
 
April 3, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 4.0 μg/m3 (4) 2.2 μg/m3 (9) 35.0
 
April 3, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 6.0 μg/m3 (5) 2.3 μg/m3 (10) 35.0
 
April 3, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 2.0 μg/m3 (2) -2.4 μg/m3 (0) 35.0
 
April 3, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 5.0 μg/m3 (5) 2.3 μg/m3 (10) 35.0
 
April 3, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 3.0 μg/m3 (3) 3.0 μg/m3 (12) 34.0
 
April 3, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 8.0 μg/m3 (7) -0.4 μg/m3 (0) 32.0
 
April 3, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 14.0 μg/m3 (13) 2.5 μg/m3 (10) 30.0
 
April 3, 2020, 4 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) -0.5 μg/m3 (0) 28.0
 
April 3, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 3.0 μg/m3 (3) 3.9 μg/m3 (16) 27.0
 
April 3, 2020, 2 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) 1.0 μg/m3 (4) 25.0
 
April 3, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 8.0 μg/m3 (7) 3.6 μg/m3 (15) 23.0
 
April 3, 2020, noon N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 4.0 μg/m3 (4) 2.6 μg/m3 (11) 22.0
 
April 3, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 6.0 μg/m3 (5) 4.6 μg/m3 (19) 21.0
 
April 3, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 12.0 μg/m3 (11) 2.1 μg/m3 (9) 20.0
 
April 3, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 17.0 μg/m3 (15) 3.9 μg/m3 (16) 20.0
 
April 3, 2020, 8 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) 4.5 μg/m3 (19) 21.0
 
April 3, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 6.0 μg/m3 (5) 1.3 μg/m3 (5) 21.0
 
April 3, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 5.0 μg/m3 (5) 5.7 μg/m3 (24) 25.0
 
April 3, 2020, 5 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) 3.4 μg/m3 (14) 25.0
 
April 3, 2020, 4 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) 3.9 μg/m3 (16) 27.0
 
April 3, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 7.0 μg/m3 (6) 4.7 μg/m3 (20) 28.0