ID: 2435

AQSQID: 300870001

Site Name: Birney

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

Updated: Sept. 29, 2020, 5:39 p.m.

Location: Birney (Tongue Riv Rd), MT

Reporting: True, Located: True

Current AQI: 23.0

Birney (Tongue Riv Rd) MT, US: 45.366151, -106.48982

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 29, 2020, 4 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) -2.7 μg/m3 (0) 23.0
 
Sept. 29, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 39.0 μg/m3 (35) -1.9 μg/m3 (0) 35.0
 
Sept. 29, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 33.0 μg/m3 (30) -0.4 μg/m3 (0) 30.0
 
Sept. 29, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 32.0 μg/m3 (29) 4.2 μg/m3 (18) 29.0
 
Sept. 29, 2020, noon N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 32.0 μg/m3 (29) 4.8 μg/m3 (20) 29.0
 
Sept. 29, 2020, 11 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) 3.1 μg/m3 (13) 13.0
 
Sept. 29, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 6.0 μg/m3 (5) 2.5 μg/m3 (10) 13.0
 
Sept. 29, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 4.0 μg/m3 (4) 2.6 μg/m3 (11) 18.0
 
Sept. 29, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 20.0 μg/m3 (18) 0.6 μg/m3 (2) 18.0
 
Sept. 29, 2020, 7 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) 1.7 μg/m3 (7) 19.0
 
Sept. 29, 2020, 6 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) 2.1 μg/m3 (9) 22.0
 
Sept. 29, 2020, 5 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) 2.0 μg/m3 (8) 21.0
 
Sept. 29, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 14.0 μg/m3 (13) 5.1 μg/m3 (21) 21.0
 
Sept. 29, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 43.0 μg/m3 (39) 5.8 μg/m3 (24) 39.0
 
Sept. 29, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 68.0 μg/m3 (56) 10.7 μg/m3 (45) 56.0
 
Sept. 29, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 59.0 μg/m3 (52) 7.8 μg/m3 (32) 52.0
 
Sept. 29, 2020, midnight N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 6.0 μg/m3 (5) 2.2 μg/m3 (9) 27.0
 
Sept. 28, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 0.0 μg/m3 (0) 1.8 μg/m3 (8) 29.0
 
Sept. 28, 2020, 10 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) -2.4 μg/m3 (0) 29.0
 
Sept. 28, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 8.0 μg/m3 (7) 0.7 μg/m3 (3) 29.0
 
Sept. 28, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 1.0 μg/m3 (1) -1.1 μg/m3 (0) 28.0
 
Sept. 28, 2020, 7 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) -0.6 μg/m3 (0) 28.0
 
Sept. 28, 2020, 6 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) -4.5 μg/m3 (0) 28.0
 
Sept. 28, 2020, 5 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) 2.3 μg/m3 (10) 28.0
 
Sept. 28, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 17.0 μg/m3 (15) -0.2 μg/m3 (0) 25.0
 
Sept. 28, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 13.0 μg/m3 (12) 0.2 μg/m3 (1) 20.0
 
Sept. 28, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 11.0 μg/m3 (10) -0.7 μg/m3 (0) 13.0
 
Sept. 28, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A 10.0 μg/m3 (9) 4.6 μg/m3 (19) 19.0
 
Sept. 28, 2020, noon N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A 5.0 μg/m3 (5) 1.1 μg/m3 (5) 10.0
 
Sept. 28, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 4.0 μg/m3 (4) 2.1 μg/m3 (9) 12.0
 
Sept. 28, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A 4.0 μg/m3 (4) 1.4 μg/m3 (6) 11.0
 
Sept. 28, 2020, 9 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) 3.5 μg/m3 (15) 15.0
 
Sept. 28, 2020, 8 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) 4.4 μg/m3 (18) 18.0
 
Sept. 28, 2020, 7 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) -0.5 μg/m3 (0) 15.0
 
Sept. 28, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 1.0 μg/m3 (1) 1.4 μg/m3 (6) 15.0
 
Sept. 28, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 6.0 μg/m3 (5) -0.3 μg/m3 (0) 13.0
 
Sept. 28, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 8.0 μg/m3 (7) 4.7 μg/m3 (20) 20.0
 
Sept. 28, 2020, 3 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) 2.2 μg/m3 (9) 15.0
 
Sept. 28, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 10.0 μg/m3 (9) 6.6 μg/m3 (28) 28.0
 
Sept. 28, 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) 5.8 μg/m3 (24) 25.0
 
Sept. 28, 2020, midnight N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 1.0 μg/m3 (1) 1.4 μg/m3 (6) 28.0
 
Sept. 27, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 0.0 μg/m3 (0) 1.8 μg/m3 (8) 29.0
 
Sept. 27, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 3.0 μg/m3 (3) 4.6 μg/m3 (19) 30.0
 
Sept. 27, 2020, 9 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) 3.3 μg/m3 (14) 28.0
 
Sept. 27, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 8.0 μg/m3 (7) 0.5 μg/m3 (2) 29.0
 
Sept. 27, 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) 1.9 μg/m3 (8) 28.0
 
Sept. 27, 2020, 6 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) 2.6 μg/m3 (11) 28.0
 
Sept. 27, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 9.0 μg/m3 (8) 0.5 μg/m3 (2) 28.0
 
Sept. 27, 2020, 4 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) 2.2 μg/m3 (9) 28.0
 
Sept. 27, 2020, 3 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) 2.4 μg/m3 (10) 28.0
 
Sept. 27, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 9.0 μg/m3 (8) -0.2 μg/m3 (0) 28.0
 
Sept. 27, 2020, 1 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) 3.9 μg/m3 (16) 26.0
 
Sept. 27, 2020, noon 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
 
Sept. 27, 2020, 11 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) 2.3 μg/m3 (10) 24.0
 
Sept. 27, 2020, 10 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) 2.4 μg/m3 (10) 24.0
 
Sept. 27, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 8.0 μg/m3 (7) 2.8 μg/m3 (12) 22.0
 
Sept. 27, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 11.0 μg/m3 (10) 2.1 μg/m3 (9) 25.0
 
Sept. 27, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 20.0 μg/m3 (18) 1.3 μg/m3 (5) 31.0
 
Sept. 27, 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) 3.6 μg/m3 (15) 28.0
 
Sept. 27, 2020, 5 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) 4.5 μg/m3 (19) 19.0
 
Sept. 27, 2020, 4 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) 2.9 μg/m3 (12) 12.0
 
Sept. 27, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 14.0 μg/m3 (13) 2.0 μg/m3 (8) 14.0
 
Sept. 27, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 15.0 μg/m3 (14) 1.1 μg/m3 (5) 18.0
 
Sept. 27, 2020, 1 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) 8.0 μg/m3 (33) 33.0
 
Sept. 27, 2020, midnight N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 11.0 μg/m3 (10) 5.3 μg/m3 (22) 28.0
 
Sept. 26, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 20.0 μg/m3 (18) 1.9 μg/m3 (8) 33.0
 
Sept. 26, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 22.0 μg/m3 (20) -0.4 μg/m3 (0) 35.0
 
Sept. 26, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 42.0 μg/m3 (38) 3.0 μg/m3 (12) 38.0
 
Sept. 26, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 36.0 μg/m3 (33) 0.2 μg/m3 (1) 33.0
 
Sept. 26, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 16.0 μg/m3 (15) -0.2 μg/m3 (0) 33.0
 
Sept. 26, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 6.0 μg/m3 (5) -1.2 μg/m3 (0) 32.0
 
Sept. 26, 2020, 5 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) -0.7 μg/m3 (0) 29.0
 
Sept. 26, 2020, 4 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) -1.4 μg/m3 (0) 26.0
 
Sept. 26, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 23.0 μg/m3 (21) 8.7 μg/m3 (36) 36.0
 
Sept. 26, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 8.0 μg/m3 (7) 8.3 μg/m3 (35) 35.0
 
Sept. 26, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 11.0 μg/m3 (10) 12.0 μg/m3 (50) 50.0
 
Sept. 26, 2020, noon N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 18.0 μg/m3 (16) 10.0 μg/m3 (42) 42.0
 
Sept. 26, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 20.0 μg/m3 (18) 10.3 μg/m3 (43) 43.0
 
Sept. 26, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 22.0 μg/m3 (20) 9.7 μg/m3 (40) 40.0
 
Sept. 26, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 25.0 μg/m3 (23) 7.7 μg/m3 (32) 32.0
 
Sept. 26, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 38.0 μg/m3 (35) 9.2 μg/m3 (38) 38.0
 
Sept. 26, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 79.0 μg/m3 (62) 13.7 μg/m3 (54) 62.0
 
Sept. 26, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 48.0 μg/m3 (44) 11.9 μg/m3 (50) 50.0
 
Sept. 26, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 24.0 μg/m3 (22) 8.3 μg/m3 (35) 35.0
 
Sept. 26, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 76.0 μg/m3 (60) 14.1 μg/m3 (54) 60.0
 
Sept. 26, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 154.0 μg/m3 (100) 31.7 μg/m3 (92) 100.0
 
Sept. 26, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 112.0 μg/m3 (78) 20.7 μg/m3 (69) 78.0
 
Sept. 26, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 46.0 μg/m3 (42) 12.5 μg/m3 (51) 51.0
 
Sept. 26, 2020, midnight N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 24.0 μg/m3 (22) -1.7 μg/m3 (0) 24.0
 
Sept. 25, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 37.0 μg/m3 (34) 10.2 μg/m3 (42) 42.0
 
Sept. 25, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 50.0 μg/m3 (45) 10.6 μg/m3 (44) 45.0
 
Sept. 25, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 50.0 μg/m3 (45) 5.2 μg/m3 (22) 45.0
 
Sept. 25, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 89.0 μg/m3 (67) 19.4 μg/m3 (66) 67.0
 
Sept. 25, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 74.0 μg/m3 (60) 11.4 μg/m3 (48) 60.0
 
Sept. 25, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 65.0 μg/m3 (55) 11.4 μg/m3 (48) 55.0
 
Sept. 25, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 39.0 μg/m3 (35) 4.9 μg/m3 (20) 35.0
 
Sept. 25, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 44.0 μg/m3 (40) 6.2 μg/m3 (26) 40.0
 
Sept. 25, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 49.0 μg/m3 (45) 5.6 μg/m3 (23) 45.0
 
Sept. 25, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 184.0 μg/m3 (114) 26.2 μg/m3 (80) 114.0
 
Sept. 25, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 64.0 μg/m3 (54) 14.9 μg/m3 (56) 56.0
 
Sept. 25, 2020, noon N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 35.0 μg/m3 (32) 7.6 μg/m3 (32) 32.0
 
Sept. 25, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 31.0 μg/m3 (28) 4.7 μg/m3 (20) 28.0
 
Sept. 25, 2020, 10 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) 2.3 μg/m3 (10) 19.0
 
Sept. 25, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 2.0 μg/m3 (2) 4.1 μg/m3 (17) 20.0
 
Sept. 25, 2020, 8 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) 1.4 μg/m3 (6) 22.0
 
Sept. 25, 2020, 7 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
 
Sept. 25, 2020, 6 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) 1.6 μg/m3 (7) 29.0
 
Sept. 25, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 16.0 μg/m3 (15) 6.1 μg/m3 (25) 32.0
 
Sept. 25, 2020, 4 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) 9.6 μg/m3 (40) 40.0
 
Sept. 25, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 25.0 μg/m3 (23) 9.8 μg/m3 (41) 41.0
 
Sept. 25, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 32.0 μg/m3 (29) 14.8 μg/m3 (56) 56.0
 
Sept. 25, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 52.0 μg/m3 (47) 16.4 μg/m3 (59) 59.0
 
Sept. 25, 2020, midnight N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 77.0 μg/m3 (61) 19.0 μg/m3 (65) 65.0
 
Sept. 24, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 114.0 μg/m3 (80) 22.5 μg/m3 (72) 80.0
 
Sept. 24, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 173.0 μg/m3 (109) 33.9 μg/m3 (97) 109.0
 
Sept. 24, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 152.0 μg/m3 (98) 30.0 μg/m3 (88) 98.0
 
Sept. 24, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 82.0 μg/m3 (64) 17.8 μg/m3 (62) 64.0
 
Sept. 24, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 36.0 μg/m3 (33) 10.7 μg/m3 (45) 45.0
 
Sept. 24, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 49.0 μg/m3 (45) 15.3 μg/m3 (57) 57.0
 
Sept. 24, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 46.0 μg/m3 (42) 18.3 μg/m3 (63) 63.0
 
Sept. 24, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 73.0 μg/m3 (59) 20.2 μg/m3 (67) 67.0
 
Sept. 24, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 43.0 μg/m3 (39) 17.6 μg/m3 (62) 62.0
 
Sept. 24, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 51.0 μg/m3 (46) 18.2 μg/m3 (63) 63.0
 
Sept. 24, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 51.0 μg/m3 (46) 15.3 μg/m3 (57) 57.0
 
Sept. 24, 2020, noon N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 32.0 μg/m3 (29) 16.1 μg/m3 (59) 59.0
 
Sept. 24, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 29.0 μg/m3 (26) 18.9 μg/m3 (65) 65.0
 
Sept. 24, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 23.0 μg/m3 (21) 16.9 μg/m3 (60) 60.0
 
Sept. 24, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 26.0 μg/m3 (24) 16.2 μg/m3 (59) 59.0
 
Sept. 24, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 28.0 μg/m3 (25) 14.4 μg/m3 (55) 55.0
 
Sept. 24, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 28.0 μg/m3 (25) 18.6 μg/m3 (64) 64.0
 
Sept. 24, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 51.0 μg/m3 (46) 22.5 μg/m3 (72) 72.0
 
Sept. 24, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 103.0 μg/m3 (74) 30.0 μg/m3 (88) 88.0
 
Sept. 24, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 64.0 μg/m3 (54) 28.3 μg/m3 (85) 85.0
 
Sept. 24, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 78.0 μg/m3 (62) 28.4 μg/m3 (85) 85.0
 
Sept. 24, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 99.0 μg/m3 (72) 36.9 μg/m3 (104) 104.0
 
Sept. 24, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 81.0 μg/m3 (63) 35.3 μg/m3 (100) 100.0
 
Sept. 24, 2020, midnight N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 50.0 μg/m3 (45) 22.5 μg/m3 (72) 72.0
 
Sept. 23, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 13.0 μg/m3 (12) 19.4 μg/m3 (66) 66.0
 
Sept. 23, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 41.0 μg/m3 (37) 17.6 μg/m3 (62) 62.0
 
Sept. 23, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 101.0 μg/m3 (73) 28.1 μg/m3 (84) 84.0
 
Sept. 23, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 29.0 μg/m3 (26) 15.0 μg/m3 (56) 56.0
 
Sept. 23, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 24.0 μg/m3 (22) 12.2 μg/m3 (50) 50.0
 
Sept. 23, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 27.0 μg/m3 (25) 8.2 μg/m3 (34) 35.0
 
Sept. 23, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 33.0 μg/m3 (30) 11.3 μg/m3 (47) 47.0
 
Sept. 23, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 42.0 μg/m3 (38) 11.8 μg/m3 (49) 49.0
 
Sept. 23, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 85.0 μg/m3 (65) 19.6 μg/m3 (66) 66.0
 
Sept. 23, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 38.4 μg/m3 (107) 107.0
 
Sept. 23, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 131.0 μg/m3 (88) 26.5 μg/m3 (81) 88.0
 
Sept. 23, 2020, noon N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 84.0 μg/m3 (64) 23.7 μg/m3 (75) 75.0
 
Sept. 23, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 25.4 μg/m3 (79) 79.0
 
Sept. 23, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 20.0 μg/m3 (18) 16.4 μg/m3 (59) 59.0
 
Sept. 23, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 26.0 μg/m3 (24) 15.8 μg/m3 (58) 58.0
 
Sept. 23, 2020, 8 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) 13.0 μg/m3 (52) 52.0
 
Sept. 23, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 37.0 μg/m3 (34) 13.9 μg/m3 (54) 54.0
 
Sept. 23, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 24.0 μg/m3 (22) 13.4 μg/m3 (53) 53.0
 
Sept. 23, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 36.0 μg/m3 (33) 14.6 μg/m3 (56) 56.0
 
Sept. 23, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 55.0 μg/m3 (50) 19.0 μg/m3 (65) 65.0
 
Sept. 23, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 96.0 μg/m3 (70) 27.9 μg/m3 (84) 84.0
 
Sept. 23, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 73.0 μg/m3 (59) 21.7 μg/m3 (71) 71.0
 
Sept. 23, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 52.0 μg/m3 (47) 17.8 μg/m3 (62) 62.0
 
Sept. 23, 2020, midnight N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A 31.0 μg/m3 (28) 9.4 μg/m3 (39) 42.0
 
Sept. 22, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A 8.0 μg/m3 (7) 14.5 μg/m3 (55) 55.0
 
Sept. 22, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) N/A 21.0 μg/m3 (19) 10.8 μg/m3 (45) 45.0
 
Sept. 22, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) N/A 22.0 μg/m3 (20) 12.9 μg/m3 (52) 52.0
 
Sept. 22, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A 15.0 μg/m3 (14) 5.3 μg/m3 (22) 42.0
 
Sept. 22, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 10.0 μg/m3 (9) 1.0 μg/m3 (4) 35.0
 
Sept. 22, 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) 0.8 μg/m3 (3) 33.0
 
Sept. 22, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 25.0 μg/m3 (23) 4.8 μg/m3 (20) 30.0