AQSQID: 300750001

Site Name: Broadus

Location: Powder River Co, MT

Reporting: True, Located: True

Current AQI: 30.0

Powder River Co MT, US: 45.440295, -105.37028

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Aug. 18, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 28.0 μg/m3 (25) 5.8 μg/m3 (24) 25.0
 
Aug. 18, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 6.0 μg/m3 (5) 0.4 μg/m3 (2) 15.0
 
Aug. 18, 2019, midnight N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 1.0 μg/m3 (1) 3.7 μg/m3 (15) 15.0
 
Aug. 17, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A -1.0 μg/m3 (0) 19.1 μg/m3 (65) 65.0
 
Aug. 17, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 11.0 μg/m3 (10) 1.8 μg/m3 (8) 18.0
 
Aug. 17, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 27.0 μg/m3 (25) 0.7 μg/m3 (3) 25.0
 
Aug. 17, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 20.0 μg/m3 (18) -2.7 μg/m3 (0) 23.0
 
Aug. 17, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 36.0 μg/m3 (33) 7.3 μg/m3 (30) 33.0
 
Aug. 17, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 34.0 μg/m3 (31) 11.2 μg/m3 (47) 47.0
 
Aug. 17, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 30.0 μg/m3 (27) 5.5 μg/m3 (23) 27.0
 
Aug. 17, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 15.0 μg/m3 (14) 5.7 μg/m3 (24) 25.0
 
Aug. 17, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 5.0 μg/m3 (5) 7.3 μg/m3 (30) 30.0
 
Aug. 17, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 20.0 μg/m3 (18) 6.7 μg/m3 (28) 28.0
 
Aug. 17, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 38.0 μg/m3 (35) 8.5 μg/m3 (35) 35.0
 
Aug. 17, 2019, noon N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 22.0 μg/m3 (20) 11.5 μg/m3 (48) 48.0
 
Aug. 17, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 18.0 μg/m3 (16) 8.5 μg/m3 (35) 35.0
 
Aug. 17, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A 17.0 μg/m3 (15) 9.3 μg/m3 (39) 39.0
 
Aug. 17, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A 16.0 μg/m3 (15) 10.6 μg/m3 (44) 44.0
 
Aug. 17, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 10.0 μg/m3 (9) 14.3 μg/m3 (55) 55.0
 
Aug. 17, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 11.0 μg/m3 (10) 21.8 μg/m3 (71) 71.0
 
Aug. 17, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 25.0 μg/m3 (23) 12.3 μg/m3 (51) 51.0
 
Aug. 17, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 84.0 μg/m3 (64) 18.9 μg/m3 (65) 65.0
 
Aug. 17, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 78.0 μg/m3 (62) 11.5 μg/m3 (48) 62.0
 
Aug. 17, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 25.0 μg/m3 (23) 8.1 μg/m3 (34) 34.0
 
Aug. 17, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 41.0 μg/m3 (37) 2.8 μg/m3 (12) 37.0
 
Aug. 17, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 74.0 μg/m3 (60) 17.8 μg/m3 (62) 62.0
 
Aug. 17, 2019, midnight N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 52.0 μg/m3 (47) 15.7 μg/m3 (58) 58.0
 
Aug. 16, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 64.0 μg/m3 (54) 13.0 μg/m3 (52) 54.0
 
Aug. 16, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 65.0 μg/m3 (55) 7.5 μg/m3 (31) 55.0
 
Aug. 16, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 63.0 μg/m3 (54) 9.3 μg/m3 (39) 54.0
 
Aug. 16, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 49.0 μg/m3 (45) 15.9 μg/m3 (58) 58.0
 
Aug. 16, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 25.0 μg/m3 (23) 7.5 μg/m3 (31) 35.0
 
Aug. 16, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 14.0 μg/m3 (13) 7.4 μg/m3 (31) 35.0
 
Aug. 16, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 25.0 μg/m3 (23) 4.1 μg/m3 (17) 35.0
 
Aug. 16, 2019, 4 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) 6.9 μg/m3 (29) 34.0
 
Aug. 16, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 15.0 μg/m3 (14) 5.4 μg/m3 (23) 31.0
 
Aug. 16, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 27.0 μg/m3 (25) 7.4 μg/m3 (31) 31.0
 
Aug. 16, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 42.0 μg/m3 (38) 13.1 μg/m3 (52) 52.0
 
Aug. 16, 2019, noon N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 22.0 μg/m3 (20) 7.1 μg/m3 (30) 30.0
 
Aug. 16, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 17.0 μg/m3 (15) 9.4 μg/m3 (39) 39.0
 
Aug. 16, 2019, 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) 7.6 μg/m3 (32) 32.0
 
Aug. 16, 2019, 9 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) -3.9 μg/m3 (0) 18.0
 
Aug. 16, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 25.0 μg/m3 (23) 5.4 μg/m3 (23) 23.0
 
Aug. 16, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 40.0 μg/m3 (36) 14.1 μg/m3 (54) 54.0
 
Aug. 16, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 43.0 μg/m3 (39) 16.6 μg/m3 (60) 60.0
 
Aug. 16, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 60.0 μg/m3 (52) 14.9 μg/m3 (56) 56.0
 
Aug. 16, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 68.0 μg/m3 (56) 18.2 μg/m3 (63) 63.0
 
Aug. 16, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 33.0 μg/m3 (30) 8.1 μg/m3 (34) 34.0
 
Aug. 16, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 81.0 μg/m3 (63) 17.9 μg/m3 (63) 63.0
 
Aug. 16, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 99.0 μg/m3 (72) 22.1 μg/m3 (71) 72.0
 
Aug. 16, 2019, midnight N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 24.0 μg/m3 (22) 8.4 μg/m3 (35) 38.0
 
Aug. 15, 2019, 11 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) 14.7 μg/m3 (56) 56.0
 
Aug. 15, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 25.0 μg/m3 (23) -1.1 μg/m3 (0) 38.0
 
Aug. 15, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 11.0 μg/m3 (10) -1.3 μg/m3 (0) 38.0
 
Aug. 15, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 13.0 μg/m3 (12) 10.6 μg/m3 (44) 44.0
 
Aug. 15, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 6.0 μg/m3 (5) 2.3 μg/m3 (10) 36.0
 
Aug. 15, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 1.0 μg/m3 (1) -2.4 μg/m3 (0) 35.0
 
Aug. 15, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 10.6 μg/m3 (44) 44.0
 
Aug. 15, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 0.9 μg/m3 (4) 4.0
 
Aug. 15, 2019, 3 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 (2) 2.0
 
Aug. 15, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 3.4 μg/m3 (14) 14.0
 
Aug. 15, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 3.0 μg/m3 (12) 12.0
 
Aug. 15, 2019, noon N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 13.0 μg/m3 (12) 8.0 μg/m3 (33) 33.0
 
Aug. 15, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 6.0 μg/m3 (5) 3.3 μg/m3 (14) 15.0
 
Aug. 15, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 14.0 μg/m3 (13) 6.1 μg/m3 (25) 25.0
 
Aug. 15, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 19.0 μg/m3 (17) 6.8 μg/m3 (28) 28.0
 
Aug. 15, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 10.0 μg/m3 (9) 0.3 μg/m3 (1) 18.0
 
Aug. 15, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 16.0 μg/m3 (15) -4.5 μg/m3 (0) 16.0
 
Aug. 15, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 22.0 μg/m3 (20) 4.0 μg/m3 (17) 20.0
 
Aug. 15, 2019, 5 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) 2.8 μg/m3 (12) 24.0
 
Aug. 15, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 11.0 μg/m3 (10) 10.1 μg/m3 (42) 42.0
 
Aug. 15, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 26.0 μg/m3 (24) 8.8 μg/m3 (37) 37.0
 
Aug. 15, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 48.0 μg/m3 (44) 10.1 μg/m3 (42) 44.0
 
Aug. 15, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 36.0 μg/m3 (33) 8.4 μg/m3 (35) 35.0
 
Aug. 15, 2019, midnight N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 21.0 μg/m3 (19) 10.4 μg/m3 (43) 43.0
 
Aug. 14, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 17.0 μg/m3 (15) 18.1 μg/m3 (63) 63.0
 
Aug. 14, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 8.0 μg/m3 (7) 4.9 μg/m3 (20) 35.0
 
Aug. 14, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 1.0 μg/m3 (1) 3.1 μg/m3 (13) 35.0
 
Aug. 14, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 1.0 μg/m3 (1) 2.2 μg/m3 (9) 35.0
 
Aug. 14, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 7.0 μg/m3 (6) 6.7 μg/m3 (28) 32.0
 
Aug. 14, 2019, 6 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) 4.8 μg/m3 (20) 31.0
 
Aug. 14, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A N/A 30.0
 
Aug. 14, 2019, 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) 8.9 μg/m3 (37) 37.0
 
Aug. 14, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 16.0 μg/m3 (15) 16.6 μg/m3 (60) 60.0
 
Aug. 14, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 50.0 μg/m3 (45) 22.5 μg/m3 (72) 72.0
 
Aug. 14, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A 33.0 μg/m3 (30) 14.4 μg/m3 (55) 55.0
 
Aug. 14, 2019, noon N/A N/A N/A N/A N/A N/A 10.0 ppb (8) N/A 43.0 μg/m3 (39) 1.4 μg/m3 (6) 39.0
 
Aug. 14, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (7) N/A 13.0 μg/m3 (12) -1.5 μg/m3 (0) 12.0
 
Aug. 14, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A 10.0 μg/m3 (9) 4.7 μg/m3 (20) 20.0
 
Aug. 14, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (9) N/A 9.0 μg/m3 (8) 1.9 μg/m3 (8) 9.0
 
Aug. 14, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 10.0 μg/m3 (9) 2.0 μg/m3 (8) 12.0
 
Aug. 14, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 9.0 μg/m3 (8) N/A 15.0
 
Aug. 14, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 7.0 μg/m3 (6) -2.8 μg/m3 (0) 15.0
 
Aug. 14, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 4.0 μg/m3 (4) 2.9 μg/m3 (12) 18.0
 
Aug. 14, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 20.0 μg/m3 (18) 3.9 μg/m3 (16) 20.0
 
Aug. 14, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 59.0 μg/m3 (52) 2.7 μg/m3 (11) 52.0
 
Aug. 14, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 36.0 μg/m3 (33) 0.2 μg/m3 (1) 33.0
 
Aug. 14, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 39.0 μg/m3 (35) 3.0 μg/m3 (12) 35.0
 
Aug. 14, 2019, midnight N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 57.0 μg/m3 (51) 8.0 μg/m3 (33) 51.0
 
Aug. 13, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 60.0 μg/m3 (52) 18.8 μg/m3 (64) 64.0
 
Aug. 13, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 30.0 μg/m3 (27) 3.5 μg/m3 (15) 28.0
 
Aug. 13, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 12.0 μg/m3 (11) 1.5 μg/m3 (6) 28.0
 
Aug. 13, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 17.0 μg/m3 (15) 0.8 μg/m3 (3) 28.0
 
Aug. 13, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 18.0 μg/m3 (16) 2.7 μg/m3 (11) 26.0
 
Aug. 13, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 14.0 μg/m3 (13) 4.7 μg/m3 (20) 25.0
 
Aug. 13, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 23.0 μg/m3 (21) 6.7 μg/m3 (28) 28.0
 
Aug. 13, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 24.0 μg/m3 (22) 7.9 μg/m3 (33) 33.0
 
Aug. 13, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 12.0 μg/m3 (11) 12.4 μg/m3 (51) 51.0
 
Aug. 13, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 18.0 μg/m3 (16) 12.1 μg/m3 (50) 50.0
 
Aug. 13, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 15.0 μg/m3 (14) 14.2 μg/m3 (55) 55.0
 
Aug. 13, 2019, noon N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 12.0 μg/m3 (11) 8.3 μg/m3 (35) 35.0
 
Aug. 13, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 8.0 μg/m3 (7) 2.3 μg/m3 (10) 19.0
 
Aug. 13, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 10.0 μg/m3 (9) 5.9 μg/m3 (25) 25.0
 
Aug. 13, 2019, 9 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) 3.4 μg/m3 (14) 22.0
 
Aug. 13, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 12.0 μg/m3 (11) -0.3 μg/m3 (0) 21.0
 
Aug. 13, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 7.0 μg/m3 (6) N/A 22.0
 
Aug. 13, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 7.0 μg/m3 (6) -3.2 μg/m3 (0) 22.0
 
Aug. 13, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 13.0 μg/m3 (12) 3.1 μg/m3 (13) 24.0
 
Aug. 13, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 18.0 μg/m3 (16) 6.3 μg/m3 (26) 26.0
 
Aug. 13, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 16.0 μg/m3 (15) 5.3 μg/m3 (22) 25.0
 
Aug. 13, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 19.0 μg/m3 (17) 8.5 μg/m3 (35) 35.0
 
Aug. 13, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 26.0 μg/m3 (24) 6.3 μg/m3 (26) 35.0
 
Aug. 13, 2019, midnight N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 25.0 μg/m3 (23) 8.0 μg/m3 (33) 36.0
 
Aug. 12, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 9.0 μg/m3 (8) 8.1 μg/m3 (34) 37.0
 
Aug. 12, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 0.0 μg/m3 (0) 5.6 μg/m3 (23) 37.0
 
Aug. 12, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 34.0 μg/m3 (31) -1.3 μg/m3 (0) 36.0
 
Aug. 12, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 44.0 μg/m3 (40) 4.7 μg/m3 (20) 40.0
 
Aug. 12, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 2.0 μg/m3 (2) 4.7 μg/m3 (20) 37.0
 
Aug. 12, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 6.0 μg/m3 (5) 7.2 μg/m3 (30) 37.0
 
Aug. 12, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 4.0 μg/m3 (4) 6.9 μg/m3 (29) 38.0
 
Aug. 12, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A -3.0 μg/m3 (0) -0.9 μg/m3 (0) 35.0
 
Aug. 12, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 3.2 μg/m3 (13) 33.0
 
Aug. 12, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 5.0 μg/m3 (5) 6.7 μg/m3 (28) 28.0
 
Aug. 12, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 12.0 μg/m3 (11) 16.2 μg/m3 (59) 59.0
 
Aug. 12, 2019, noon N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 9.0 μg/m3 (8) 2.4 μg/m3 (10) 20.0
 
Aug. 12, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 3.0 μg/m3 (3) -1.1 μg/m3 (0) 20.0
 
Aug. 12, 2019, 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) -0.6 μg/m3 (0) 16.0
 
Aug. 12, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A -1.0 μg/m3 (0) 4.8 μg/m3 (20) 20.0
 
Aug. 12, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 4.6 μg/m3 (19) 22.0
 
Aug. 12, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 5.4 μg/m3 (23) 28.0
 
Aug. 12, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 1.3 μg/m3 (5) 35.0
 
Aug. 12, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 10.0 μg/m3 (9) 8.8 μg/m3 (37) 37.0
 
Aug. 12, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 49.0 μg/m3 (45) 26.2 μg/m3 (80) 80.0
 
Aug. 12, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A -1.0 μg/m3 (0) 4.9 μg/m3 (20) 35.0
 
Aug. 12, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 38.0 μg/m3 (35) 12.1 μg/m3 (50) 50.0
 
Aug. 12, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 26.0 μg/m3 (24) 0.5 μg/m3 (2) 30.0
 
Aug. 12, 2019, midnight N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 15.0 μg/m3 (14) -1.4 μg/m3 (0) 34.0
 
Aug. 11, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 15.0 μg/m3 (14) N/A 35.0
 
Aug. 11, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 7.0 μg/m3 (6) 6.8 μg/m3 (28) 36.0
 
Aug. 11, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 17.0 μg/m3 (15) 1.7 μg/m3 (7) 35.0
 
Aug. 11, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 27.0 μg/m3 (25) 12.1 μg/m3 (50) 50.0
 
Aug. 11, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 13.0 μg/m3 (12) 5.1 μg/m3 (21) 32.0
 
Aug. 11, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 13.0 μg/m3 (12) 5.2 μg/m3 (22) 33.0
 
Aug. 11, 2019, 5 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) 3.8 μg/m3 (16) 34.0
 
Aug. 11, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 0.0 μg/m3 (0) N/A 32.0
 
Aug. 11, 2019, 3 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) N/A 27.0
 
Aug. 11, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 13.0 μg/m3 (12) 13.0 μg/m3 (52) 52.0
 
Aug. 11, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 23.0 μg/m3 (21) 15.9 μg/m3 (58) 58.0
 
Aug. 11, 2019, noon N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 12.0 μg/m3 (11) 6.7 μg/m3 (28) 28.0
 
Aug. 11, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 14.0 μg/m3 (13) 1.4 μg/m3 (6) 13.0
 
Aug. 11, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A 13.0 μg/m3 (12) N/A 12.0
 
Aug. 11, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 17.0 μg/m3 (15) 6.2 μg/m3 (26) 26.0
 
Aug. 11, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (6) N/A 18.0 μg/m3 (16) -2.9 μg/m3 (0) 16.0
 
Aug. 11, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 9.0 μg/m3 (8) 7.2 μg/m3 (30) 30.0
 
Aug. 11, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 9.0 μg/m3 (8) 0.6 μg/m3 (2) 16.0
 
Aug. 11, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 13.0 μg/m3 (12) 6.2 μg/m3 (26) 26.0
 
Aug. 11, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 8.0 μg/m3 (7) 0.5 μg/m3 (2) 19.0
 
Aug. 11, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 15.0 μg/m3 (14) 5.8 μg/m3 (24) 31.0