AQSQID: 300750001

Site Name: Broadus

Location: Powder River Co, MT

Reporting: True, Located: True

Current AQI: 28.0

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
Nov. 16, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 31.0 μg/m3 (28) 1.1 μg/m3 (5) 28.0
 
Nov. 16, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 35.0 μg/m3 (32) 2.9 μg/m3 (12) 32.0
 
Nov. 16, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 24.0 μg/m3 (22) 2.9 μg/m3 (12) 28.0
 
Nov. 16, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 24.0 μg/m3 (22) 5.2 μg/m3 (22) 28.0
 
Nov. 16, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 22.0 μg/m3 (20) 4.9 μg/m3 (20) 27.0
 
Nov. 16, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 33.0 μg/m3 (30) 3.7 μg/m3 (15) 30.0
 
Nov. 16, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 47.0 μg/m3 (43) 7.9 μg/m3 (33) 43.0
 
Nov. 16, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 28.0 μg/m3 (25) 6.9 μg/m3 (29) 29.0
 
Nov. 16, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 17.0 μg/m3 (15) 12.2 μg/m3 (50) 50.0
 
Nov. 16, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 7.0 μg/m3 (6) 4.7 μg/m3 (20) 28.0
 
Nov. 16, 2019, 1 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) 5.1 μg/m3 (21) 25.0
 
Nov. 16, 2019, noon N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 2.0 μg/m3 (2) 6.3 μg/m3 (26) 28.0
 
Nov. 16, 2019, 11 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) 6.8 μg/m3 (28) 28.0
 
Nov. 16, 2019, 10 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) 8.2 μg/m3 (34) 34.0
 
Nov. 16, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 11.0 μg/m3 (10) 9.6 μg/m3 (40) 40.0
 
Nov. 16, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 1.0 μg/m3 (1) 10.8 μg/m3 (45) 45.0
 
Nov. 16, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 3.0 μg/m3 (3) 14.9 μg/m3 (56) 56.0
 
Nov. 16, 2019, 6 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) 2.1 μg/m3 (9) 11.0
 
Nov. 16, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 7.0 μg/m3 (6) -2.8 μg/m3 (0) 12.0
 
Nov. 16, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 5.0 μg/m3 (5) 5.5 μg/m3 (23) 23.0
 
Nov. 16, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 3.0 μg/m3 (3) 2.1 μg/m3 (9) 18.0
 
Nov. 16, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 6.0 μg/m3 (5) 2.9 μg/m3 (12) 19.0
 
Nov. 16, 2019, 1 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) -0.4 μg/m3 (0) 21.0
 
Nov. 16, 2019, midnight N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 3.0 μg/m3 (3) -2.2 μg/m3 (0) 22.0
 
Nov. 15, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 2.0 μg/m3 (2) 0.0 μg/m3 (0) 21.0
 
Nov. 15, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 4.0 μg/m3 (4) -1.0 μg/m3 (0) 19.0
 
Nov. 15, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 2.0 μg/m3 (2) 0.9 μg/m3 (4) 23.0
 
Nov. 15, 2019, 8 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) 3.7 μg/m3 (15) 25.0
 
Nov. 15, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 6.0 μg/m3 (5) 8.1 μg/m3 (34) 34.0
 
Nov. 15, 2019, 6 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) 10.4 μg/m3 (43) 43.0
 
Nov. 15, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 22.0 μg/m3 (20) 16.0 μg/m3 (59) 59.0
 
Nov. 15, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 13.0 μg/m3 (12) 10.9 μg/m3 (45) 45.0
 
Nov. 15, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 9.0 μg/m3 (8) 17.9 μg/m3 (63) 63.0
 
Nov. 15, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 6.0 μg/m3 (5) 4.0 μg/m3 (17) 17.0
 
Nov. 15, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A 5.0 μg/m3 (5) 1.7 μg/m3 (7) 11.0
 
Nov. 15, 2019, noon N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A 3.0 μg/m3 (3) 2.7 μg/m3 (11) 11.0
 
Nov. 15, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 5.0 μg/m3 (5) 1.1 μg/m3 (5) 12.0
 
Nov. 15, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A 2.0 μg/m3 (2) -0.2 μg/m3 (0) 11.0
 
Nov. 15, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 1.0 μg/m3 (1) 5.4 μg/m3 (23) 23.0
 
Nov. 15, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 6.0 μg/m3 (5) 5.3 μg/m3 (22) 22.0
 
Nov. 15, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 7.0 μg/m3 (6) 10.1 μg/m3 (42) 42.0
 
Nov. 15, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (8) N/A 9.0 μg/m3 (8) 0.6 μg/m3 (2) 8.0
 
Nov. 15, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 6.0 μg/m3 (5) 1.0 μg/m3 (4) 12.0
 
Nov. 15, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 9.0 μg/m3 (8) 3.4 μg/m3 (14) 14.0
 
Nov. 15, 2019, 3 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) 2.9 μg/m3 (12) 15.0
 
Nov. 15, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 4.0 μg/m3 (4) -1.6 μg/m3 (0) 20.0
 
Nov. 15, 2019, 1 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) 2.3 μg/m3 (10) 21.0
 
Nov. 15, 2019, midnight N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A -2.0 μg/m3 (0) 1.9 μg/m3 (8) 22.0
 
Nov. 14, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 5.4 μg/m3 (23) 24.0
 
Nov. 14, 2019, 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) 0.1 μg/m3 (0) 28.0
 
Nov. 14, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 0.0 μg/m3 (0) 3.7 μg/m3 (15) 30.0
 
Nov. 14, 2019, 8 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) 6.5 μg/m3 (27) 27.0
 
Nov. 14, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 7.0 μg/m3 (6) 9.9 μg/m3 (41) 41.0
 
Nov. 14, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 10.0 μg/m3 (9) 7.0 μg/m3 (29) 29.0
 
Nov. 14, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 14.0 μg/m3 (13) 10.8 μg/m3 (45) 45.0
 
Nov. 14, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 4.0 μg/m3 (4) 16.8 μg/m3 (60) 60.0
 
Nov. 14, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 5.0 μg/m3 (5) 8.3 μg/m3 (35) 35.0
 
Nov. 14, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 7.0 μg/m3 (6) 1.8 μg/m3 (8) 15.0
 
Nov. 14, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 7.0 μg/m3 (6) 0.6 μg/m3 (2) 15.0
 
Nov. 14, 2019, noon N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 2.0 μg/m3 (2) 2.3 μg/m3 (10) 15.0
 
Nov. 14, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 1.0 μg/m3 (1) 2.6 μg/m3 (11) 15.0
 
Nov. 14, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 2.0 μg/m3 (2) 3.6 μg/m3 (15) 15.0
 
Nov. 14, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 3.0 μg/m3 (3) 0.0 μg/m3 (0) 16.0
 
Nov. 14, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A -2.0 μg/m3 (0) 4.3 μg/m3 (18) 18.0
 
Nov. 14, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A -2.0 μg/m3 (0) 3.3 μg/m3 (14) 15.0
 
Nov. 14, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 1.0 μg/m3 (1) -0.1 μg/m3 (0) 13.0
 
Nov. 14, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 3.0 μg/m3 (3) 1.0 μg/m3 (4) 12.0
 
Nov. 14, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 4.0 μg/m3 (4) 3.0 μg/m3 (12) 17.0
 
Nov. 14, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 7.0 μg/m3 (6) 2.9 μg/m3 (12) 15.0
 
Nov. 14, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 13.0 μg/m3 (12) 3.2 μg/m3 (13) 16.0
 
Nov. 14, 2019, 1 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) 4.4 μg/m3 (18) 18.0
 
Nov. 14, 2019, midnight N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A -4.0 μg/m3 (0) 6.6 μg/m3 (28) 28.0
 
Nov. 13, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 10.7 μg/m3 (45) 45.0
 
Nov. 13, 2019, 10 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) 1.8 μg/m3 (8) 25.0
 
Nov. 13, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 3.0 μg/m3 (3) 1.0 μg/m3 (4) 26.0
 
Nov. 13, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 4.0 μg/m3 (4) 5.0 μg/m3 (21) 28.0
 
Nov. 13, 2019, 7 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) 4.4 μg/m3 (18) 27.0
 
Nov. 13, 2019, 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) 5.3 μg/m3 (22) 25.0
 
Nov. 13, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 6.0 μg/m3 (5) 8.4 μg/m3 (35) 35.0
 
Nov. 13, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 10.2 μg/m3 (42) 42.0
 
Nov. 13, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 5.6 μg/m3 (23) 23.0
 
Nov. 13, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (1) -0.1 μg/m3 (0) 1.0
 
Nov. 13, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 1.0 μg/m3 (1) 3.6 μg/m3 (15) 22.0
 
Nov. 13, 2019, noon N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 1.0 μg/m3 (1) -0.5 μg/m3 (0) 23.0
 
Nov. 13, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 2.0 μg/m3 (2) 3.8 μg/m3 (16) 27.0
 
Nov. 13, 2019, 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) 2.2 μg/m3 (9) 26.0
 
Nov. 13, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 1.0 μg/m3 (1) 2.1 μg/m3 (9) 25.0
 
Nov. 13, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 5.8 μg/m3 (24) 25.0
 
Nov. 13, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A -1.0 μg/m3 (0) -1.1 μg/m3 (0) 25.0
 
Nov. 13, 2019, 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) 4.6 μg/m3 (19) 25.0
 
Nov. 13, 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) 5.4 μg/m3 (23) 24.0
 
Nov. 13, 2019, 4 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) 4.2 μg/m3 (18) 22.0
 
Nov. 13, 2019, 3 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) 0.0 μg/m3 (0) 22.0
 
Nov. 13, 2019, 2 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) 1.2 μg/m3 (5) 23.0
 
Nov. 13, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 10.0 μg/m3 (9) 4.0 μg/m3 (17) 25.0
 
Nov. 13, 2019, midnight N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 0.0 μg/m3 (0) -0.6 μg/m3 (0) 25.0
 
Nov. 12, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 0.0 μg/m3 (0) -2.0 μg/m3 (0) 25.0
 
Nov. 12, 2019, 10 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) -2.4 μg/m3 (0) 25.0
 
Nov. 12, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 4.0 μg/m3 (4) -1.7 μg/m3 (0) 27.0
 
Nov. 12, 2019, 8 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) 2.2 μg/m3 (9) 27.0
 
Nov. 12, 2019, 7 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) 7.9 μg/m3 (33) 33.0
 
Nov. 12, 2019, 6 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) 7.1 μg/m3 (30) 30.0
 
Nov. 12, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 15.0 μg/m3 (14) 9.3 μg/m3 (39) 39.0
 
Nov. 12, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 4.0 μg/m3 (4) 15.8 μg/m3 (58) 58.0
 
Nov. 12, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 2.0 μg/m3 (2) 18.5 μg/m3 (64) 64.0
 
Nov. 12, 2019, 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) 4.5 μg/m3 (19) 21.0
 
Nov. 12, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 4.0 μg/m3 (4) 3.0 μg/m3 (12) 22.0
 
Nov. 12, 2019, noon N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 5.0 μg/m3 (5) 1.9 μg/m3 (8) 22.0
 
Nov. 12, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 3.0 μg/m3 (3) 5.2 μg/m3 (22) 22.0
 
Nov. 12, 2019, 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) 1.8 μg/m3 (8) 21.0
 
Nov. 12, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 4.0 μg/m3 (4) 6.5 μg/m3 (27) 27.0
 
Nov. 12, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 5.0 μg/m3 (5) 7.2 μg/m3 (30) 30.0
 
Nov. 12, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A -1.0 μg/m3 (0) 6.5 μg/m3 (27) 27.0
 
Nov. 12, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 1.0 μg/m3 (1) 4.0 μg/m3 (17) 19.0
 
Nov. 12, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 1.0 μg/m3 (1) 2.1 μg/m3 (9) 20.0
 
Nov. 12, 2019, 4 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) -3.9 μg/m3 (0) 21.0
 
Nov. 12, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 5.0 μg/m3 (5) 1.8 μg/m3 (8) 22.0
 
Nov. 12, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 5.0 μg/m3 (5) -1.3 μg/m3 (0) 22.0
 
Nov. 12, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A -2.0 μg/m3 (0) -2.9 μg/m3 (0) 25.0
 
Nov. 12, 2019, midnight N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 0.0 μg/m3 (0) 1.7 μg/m3 (7) 26.0
 
Nov. 11, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A 2.7 μg/m3 (11) 26.0
 
Nov. 11, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A -2.0 μg/m3 (0) 2.8 μg/m3 (12) 26.0
 
Nov. 11, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A -1.0 μg/m3 (0) -0.8 μg/m3 (0) 27.0
 
Nov. 11, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 0.0 μg/m3 (0) 7.2 μg/m3 (30) 30.0
 
Nov. 11, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 2.0 μg/m3 (2) 10.6 μg/m3 (44) 44.0
 
Nov. 11, 2019, 6 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) 7.8 μg/m3 (32) 32.0
 
Nov. 11, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 3.0 μg/m3 (3) 2.9 μg/m3 (12) 24.0
 
Nov. 11, 2019, 4 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) 6.4 μg/m3 (27) 27.0
 
Nov. 11, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 10.0 μg/m3 (9) 6.6 μg/m3 (28) 28.0
 
Nov. 11, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 11.0 μg/m3 (10) -0.2 μg/m3 (0) 22.0
 
Nov. 11, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 9.0 μg/m3 (8) 0.0 μg/m3 (0) 24.0
 
Nov. 11, 2019, noon N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 5.0 μg/m3 (5) 3.5 μg/m3 (15) 25.0
 
Nov. 11, 2019, 11 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) 0.5 μg/m3 (2) 25.0
 
Nov. 11, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 12.0 μg/m3 (11) 4.4 μg/m3 (18) 25.0
 
Nov. 11, 2019, 9 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) 0.6 μg/m3 (2) 23.0
 
Nov. 11, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 0.0 μg/m3 (0) 1.0 μg/m3 (4) 23.0
 
Nov. 11, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 12.0 μg/m3 (11) 3.0 μg/m3 (12) 22.0
 
Nov. 11, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 6.0 μg/m3 (5) 1.2 μg/m3 (5) 22.0
 
Nov. 11, 2019, 5 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) -2.0 μg/m3 (0) 24.0
 
Nov. 11, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 1.0 μg/m3 (1) -1.7 μg/m3 (0) 25.0
 
Nov. 11, 2019, 3 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) 2.7 μg/m3 (11) 25.0
 
Nov. 11, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 14.0 μg/m3 (13) 5.0 μg/m3 (21) 25.0
 
Nov. 11, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 12.0 μg/m3 (11) 3.5 μg/m3 (15) 26.0
 
Nov. 11, 2019, midnight N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 17.0 μg/m3 (15) -1.6 μg/m3 (0) 26.0
 
Nov. 10, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 19.0 μg/m3 (17) N/A 25.0
 
Nov. 10, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 16.0 μg/m3 (15) 0.0 μg/m3 (0) 25.0
 
Nov. 10, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 23.0 μg/m3 (21) 1.6 μg/m3 (7) 25.0
 
Nov. 10, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 19.0 μg/m3 (17) 0.3 μg/m3 (1) 25.0
 
Nov. 10, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 25.0 μg/m3 (23) 3.1 μg/m3 (13) 24.0
 
Nov. 10, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 42.0 μg/m3 (38) 4.0 μg/m3 (17) 38.0
 
Nov. 10, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 17.0 μg/m3 (15) 4.4 μg/m3 (18) 24.0
 
Nov. 10, 2019, 4 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) 6.1 μg/m3 (25) 25.0
 
Nov. 10, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 7.0 μg/m3 (6) 5.4 μg/m3 (23) 23.0
 
Nov. 10, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 2.0 μg/m3 (2) 6.5 μg/m3 (27) 27.0
 
Nov. 10, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 6.0 μg/m3 (5) 4.6 μg/m3 (19) 19.0
 
Nov. 10, 2019, noon N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 7.0 μg/m3 (6) 5.1 μg/m3 (21) 21.0
 
Nov. 10, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 7.0 μg/m3 (6) 6.6 μg/m3 (28) 28.0
 
Nov. 10, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 5.0 μg/m3 (5) 2.2 μg/m3 (9) 14.0
 
Nov. 10, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 8.0 μg/m3 (7) 4.0 μg/m3 (17) 17.0
 
Nov. 10, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 4.0 μg/m3 (4) 6.9 μg/m3 (29) 29.0
 
Nov. 10, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (12) N/A 3.0 μg/m3 (3) -0.1 μg/m3 (0) 12.0
 
Nov. 10, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 1.0 μg/m3 (1) 5.0 μg/m3 (21) 21.0
 
Nov. 10, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 3.0 μg/m3 (3) 3.9 μg/m3 (16) 16.0
 
Nov. 10, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A -4.0 μg/m3 (0) 0.8 μg/m3 (3) 16.0
 
Nov. 10, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A -1.0 μg/m3 (0) -2.4 μg/m3 (0) 18.0
 
Nov. 10, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 63.0 μg/m3 (54) 4.5 μg/m3 (19) 54.0
 
Nov. 10, 2019, 1 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) 0.8 μg/m3 (3) 25.0
 
Nov. 10, 2019, midnight N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 6.0 μg/m3 (5) 2.8 μg/m3 (12) 27.0