ID: 2421

AQSQID: 300750001

Site Name: Broadus

Added: April 21, 2020, 6:24 p.m.

Updated: July 15, 2020, 2:40 a.m.

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

Reporting: True, Located: True

Current AQI: 69.0

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
July 15, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 83.0 μg/m3 (64) 20.8 μg/m3 (69) 69.0
 
July 15, 2020, midnight N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 113.0 μg/m3 (79) 38.9 μg/m3 (108) 108.0
 
July 14, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 44.0 μg/m3 (40) 12.7 μg/m3 (51) 51.0
 
July 14, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 24.0 μg/m3 (22) 3.2 μg/m3 (13) 36.0
 
July 14, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 41.0 μg/m3 (37) 5.2 μg/m3 (22) 37.0
 
July 14, 2020, 8 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) 3.5 μg/m3 (15) 35.0
 
July 14, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 32.0 μg/m3 (29) 14.4 μg/m3 (55) 55.0
 
July 14, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 30.0 μg/m3 (27) 17.4 μg/m3 (61) 61.0
 
July 14, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (23) 17.5 μg/m3 (62) 62.0
 
July 14, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 11.7 μg/m3 (49) 49.0
 
July 14, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 36.0 μg/m3 (33) 7.2 μg/m3 (30) 33.0
 
July 14, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 79.0 μg/m3 (62) 17.6 μg/m3 (62) 62.0
 
July 14, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 75.0 μg/m3 (60) 13.8 μg/m3 (54) 60.0
 
July 14, 2020, noon N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 62.0 μg/m3 (54) 11.1 μg/m3 (46) 54.0
 
July 14, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 17.0 μg/m3 (15) 4.8 μg/m3 (20) 20.0
 
July 14, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 12.0 μg/m3 (11) 7.6 μg/m3 (32) 32.0
 
July 14, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 12.0 μg/m3 (11) 2.1 μg/m3 (9) 11.0
 
July 14, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 8.0 μg/m3 (7) 1.1 μg/m3 (5) 7.0
 
July 14, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 6.0 μg/m3 (5) 6.3 μg/m3 (26) 26.0
 
July 14, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 22.0 μg/m3 (20) 8.4 μg/m3 (35) 35.0
 
July 14, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 46.0 μg/m3 (42) 9.7 μg/m3 (40) 42.0
 
July 14, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 113.0 μg/m3 (79) 25.7 μg/m3 (79) 79.0
 
July 14, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 61.3 μg/m3 (153) 153.0
 
July 14, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 82.0 μg/m3 (64) 16.4 μg/m3 (59) 64.0
 
July 14, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 59.0 μg/m3 (52) 13.3 μg/m3 (53) 53.0
 
July 14, 2020, midnight N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 78.0 μg/m3 (62) 22.8 μg/m3 (73) 73.0
 
July 13, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 80.0 μg/m3 (62) 20.5 μg/m3 (68) 68.0
 
July 13, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 52.0 μg/m3 (47) 9.5 μg/m3 (40) 47.0
 
July 13, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 45.0 μg/m3 (41) 9.8 μg/m3 (41) 41.0
 
July 13, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 61.0 μg/m3 (53) 10.4 μg/m3 (43) 53.0
 
July 13, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 53.0 μg/m3 (48) 8.8 μg/m3 (37) 48.0
 
July 13, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 40.0 μg/m3 (36) 8.9 μg/m3 (37) 37.0
 
July 13, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 44.0 μg/m3 (40) 9.3 μg/m3 (39) 40.0
 
July 13, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 50.0 μg/m3 (45) 5.8 μg/m3 (24) 45.0
 
July 13, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 53.0 μg/m3 (48) 12.0 μg/m3 (50) 50.0
 
July 13, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A 96.0 μg/m3 (70) 22.2 μg/m3 (72) 72.0
 
July 13, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 62.0 μg/m3 (54) 10.6 μg/m3 (44) 54.0
 
July 13, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (21) 6.6 μg/m3 (28) 28.0
 
July 13, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 6.5 μg/m3 (27) 27.0
 
July 13, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 2.9 μg/m3 (12) 13.0
 
July 13, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 40.0 μg/m3 (36) 3.6 μg/m3 (15) 36.0
 
July 13, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 36.0 μg/m3 (33) 15.9 μg/m3 (58) 58.0
 
July 13, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 11.4 μg/m3 (48) 48.0
 
July 13, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (20) 7.9 μg/m3 (33) 33.0
 
July 13, 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) 10.7 μg/m3 (45) 45.0
 
July 13, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 45.0 μg/m3 (41) 14.2 μg/m3 (55) 55.0
 
July 13, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 47.0 μg/m3 (43) 10.7 μg/m3 (45) 45.0
 
July 13, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 33.0 μg/m3 (30) 10.5 μg/m3 (44) 44.0
 
July 13, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 31.0 μg/m3 (28) 0.8 μg/m3 (3) 28.0
 
July 13, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A 37.0 μg/m3 (34) 6.2 μg/m3 (26) 34.0
 
July 12, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 50.0 μg/m3 (45) 2.7 μg/m3 (11) 45.0
 
July 12, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 44.0 μg/m3 (40) 6.3 μg/m3 (26) 40.0
 
July 12, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) 7.6 μg/m3 (32) 32.0
 
July 12, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 3.0 μg/m3 (12) 12.0
 
July 12, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 3.8 μg/m3 (16) 17.0
 
July 12, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (20) 2.2 μg/m3 (9) 20.0
 
July 12, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) 5.9 μg/m3 (25) 25.0
 
July 12, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 47.0 μg/m3 (43) -0.3 μg/m3 (0) 43.0
 
July 12, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) N/A 16.0
 
July 12, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 3.1 μg/m3 (13) 17.0
 
July 12, 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) 4.3 μg/m3 (18) 18.0
 
July 12, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (20) -0.1 μg/m3 (0) 20.0
 
July 12, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (8) 4.7 μg/m3 (20) 20.0
 
July 12, 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) 1.3 μg/m3 (5) 6.0
 
July 12, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 2.8 μg/m3 (12) 12.0
 
July 12, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) 5.1 μg/m3 (21) 21.0
 
July 12, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 0.0 μg/m3 (0) -1.5 μg/m3 (0) N/A
July 12, 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) 3.8 μg/m3 (16) 16.0
 
July 12, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 3.9 μg/m3 (16) 16.0
 
July 12, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (21) 5.9 μg/m3 (25) 25.0
 
July 12, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 43.0 μg/m3 (39) 7.9 μg/m3 (33) 39.0
 
July 12, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (26) 8.2 μg/m3 (34) 34.0
 
July 12, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 37.0 μg/m3 (34) 6.4 μg/m3 (27) 34.0
 
July 12, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A 43.0 μg/m3 (39) 9.4 μg/m3 (39) 39.0
 
July 11, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 38.0 μg/m3 (35) 5.1 μg/m3 (21) 35.0
 
July 11, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 40.0 μg/m3 (36) 9.5 μg/m3 (40) 40.0
 
July 11, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (12) 3.1 μg/m3 (13) 13.0
 
July 11, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 0.5 μg/m3 (2) 7.0
 
July 11, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (9) 1.3 μg/m3 (5) 9.0
 
July 11, 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) 2.6 μg/m3 (11) 11.0
 
July 11, 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) 3.8 μg/m3 (16) 16.0
 
July 11, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 6.9 μg/m3 (29) 29.0
 
July 11, 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) 9.1 μg/m3 (38) 38.0
 
July 11, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) 1.5 μg/m3 (6) 16.0
 
July 11, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 36.0 μg/m3 (33) 3.7 μg/m3 (15) 33.0
 
July 11, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 4.9 μg/m3 (20) 20.0
 
July 11, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 6.4 μg/m3 (27) 27.0
 
July 11, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 8.7 μg/m3 (36) 36.0
 
July 11, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (24) 8.6 μg/m3 (36) 36.0
 
July 11, 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) 6.3 μg/m3 (26) 26.0
 
July 11, 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) 9.8 μg/m3 (41) 41.0
 
July 11, 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) 7.8 μg/m3 (32) 32.0
 
July 11, 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) 5.9 μg/m3 (25) 25.0
 
July 11, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 35.0 μg/m3 (32) 4.8 μg/m3 (20) 32.0
 
July 11, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 8.8 μg/m3 (37) 37.0
 
July 11, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 8.8 μg/m3 (37) 37.0
 
July 11, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 8.8 μg/m3 (37) 37.0
 
July 11, 2020, midnight N/A N/A N/A N/A N/A N/A 0.0 ppb (0) N/A N/A 8.8 μg/m3 (37) 37.0
 
July 10, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 60.0 μg/m3 (52) 12.3 μg/m3 (51) 52.0
 
July 10, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 35.0 μg/m3 (32) 5.9 μg/m3 (25) 32.0
 
July 10, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 38.0 μg/m3 (35) 10.1 μg/m3 (42) 42.0
 
July 10, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A 53.0 μg/m3 (48) 10.9 μg/m3 (45) 48.0
 
July 9, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 56.0 μg/m3 (50) 8.0 μg/m3 (33) 50.0
 
July 9, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 37.0 μg/m3 (34) 7.4 μg/m3 (31) 34.0
 
July 9, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (26) 4.2 μg/m3 (18) 26.0
 
July 9, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (27) 3.5 μg/m3 (15) 27.0
 
July 9, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (27) 8.2 μg/m3 (34) 34.0
 
July 9, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 1.7 μg/m3 (7) 19.0
 
July 9, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 3.9 μg/m3 (16) 16.0
 
July 9, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (17) 1.2 μg/m3 (5) 17.0
 
July 9, 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) 4.7 μg/m3 (20) 27.0
 
July 9, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 59.0 μg/m3 (52) 10.0 μg/m3 (42) 52.0
 
July 9, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 39.0 μg/m3 (35) 5.2 μg/m3 (22) 35.0
 
July 9, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (22) 3.8 μg/m3 (16) 22.0
 
July 9, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 2.0 μg/m3 (8) 15.0
 
July 9, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 4.3 μg/m3 (18) 18.0
 
July 9, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 3.3 μg/m3 (14) 14.0
 
July 9, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) 5.6 μg/m3 (23) 23.0
 
July 9, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) -1.3 μg/m3 (0) 5.0
 
July 9, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 5.7 μg/m3 (24) 24.0
 
July 9, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (11) 6.2 μg/m3 (26) 26.0
 
July 9, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 47.0 μg/m3 (43) 7.8 μg/m3 (32) 43.0
 
July 9, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 23.6 μg/m3 (75) 75.0
 
July 9, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 46.0 μg/m3 (42) 10.7 μg/m3 (45) 45.0
 
July 9, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 49.0 μg/m3 (45) 5.6 μg/m3 (23) 45.0
 
July 9, 2020, midnight N/A N/A N/A N/A N/A N/A N/A N/A 31.0 μg/m3 (28) 6.9 μg/m3 (29) 29.0
 
July 8, 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) 1.3 μg/m3 (5) 7.0
 
July 8, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (21) 3.8 μg/m3 (16) 21.0
 
July 8, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (21) 5.2 μg/m3 (22) 22.0
 
July 8, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (16) 3.4 μg/m3 (14) 16.0
 
July 8, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 4.5 μg/m3 (19) 19.0
 
July 8, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.1 μg/m3 (9) 9.0
 
July 8, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (19) 4.8 μg/m3 (20) 20.0
 
July 8, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.1 μg/m3 (9) 9.0
 
July 8, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) -0.4 μg/m3 (0) 15.0
 
July 8, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.0 μg/m3 (20) 1.4 μg/m3 (6) 20.0
 
July 8, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (10) 4.2 μg/m3 (18) 18.0
 
July 8, 2020, noon N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 1.9 μg/m3 (8) 8.0
 
July 8, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 15.0 μg/m3 (14) 4.8 μg/m3 (20) 20.0
 
July 8, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 14.0 μg/m3 (13) 3.7 μg/m3 (15) 19.0
 
July 8, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 26.0 μg/m3 (24) 2.8 μg/m3 (12) 24.0
 
July 8, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 11.0 μg/m3 (10) 8.1 μg/m3 (34) 34.0
 
July 8, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 14.0 μg/m3 (13) 9.8 μg/m3 (41) 41.0
 
July 8, 2020, 6 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) 2.2 μg/m3 (9) 25.0
 
July 8, 2020, 5 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) 2.2 μg/m3 (9) 29.0
 
July 8, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 16.0 μg/m3 (15) 5.3 μg/m3 (22) 33.0
 
July 8, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 12.0 μg/m3 (11) 9.0 μg/m3 (38) 38.0
 
July 8, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 24.0 μg/m3 (22) 13.1 μg/m3 (52) 52.0
 
July 8, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 60.0 μg/m3 (52) 9.7 μg/m3 (40) 52.0
 
July 8, 2020, midnight N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 59.0 μg/m3 (52) 12.6 μg/m3 (51) 52.0
 
July 7, 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) 8.2 μg/m3 (34) 34.0
 
July 7, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 31.0 μg/m3 (28) 3.0 μg/m3 (12) 28.0
 
July 7, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 22.0 μg/m3 (20) 5.0 μg/m3 (21) 40.0
 
July 7, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 22.0 μg/m3 (20) 4.1 μg/m3 (17) 40.0
 
July 7, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 27.0 μg/m3 (25) 1.5 μg/m3 (6) 39.0
 
July 7, 2020, 6 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
 
July 7, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 17.0 μg/m3 (15) 4.3 μg/m3 (18) 33.0
 
July 7, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 17.0 μg/m3 (15) 1.2 μg/m3 (5) 31.0
 
July 7, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 18.0 μg/m3 (16) 1.0 μg/m3 (4) 28.0
 
July 7, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 25.0 μg/m3 (23) 2.7 μg/m3 (11) 25.0
 
July 7, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 37.0 μg/m3 (34) 4.0 μg/m3 (17) 34.0
 
July 7, 2020, noon N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 10.0 μg/m3 (9) -0.8 μg/m3 (0) 12.0
 
July 7, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A 8.0 μg/m3 (7) 3.3 μg/m3 (14) 14.0
 
July 7, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A 11.0 μg/m3 (10) 3.2 μg/m3 (13) 13.0
 
July 7, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 12.0 μg/m3 (11) 1.2 μg/m3 (5) 11.0
 
July 7, 2020, 8 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) 5.1 μg/m3 (21) 21.0
 
July 7, 2020, 7 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) 7.1 μg/m3 (30) 30.0
 
July 7, 2020, 6 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) 0.7 μg/m3 (3) 23.0