AQSQID: 300830002

Site Name: Sidney 201

Location: Richland Co, MT

Reporting: True, Located: True

Current AQI: 26.0

Richland Co MT, US: 47.8679, -104.676864

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
June 13, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 7.0 μg/m3 (6) 2.2 μg/m3 (9) 27.0
 
June 13, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 10.0 μg/m3 (9) 9.6 μg/m3 (40) 40.0
 
June 13, 2019, 8 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) 1.0 μg/m3 (4) 22.0
 
June 13, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 10.0 μg/m3 (9) -1.7 μg/m3 (0) 22.0
 
June 13, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 12.0 μg/m3 (11) 2.9 μg/m3 (12) 24.0
 
June 13, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 7.0 μg/m3 (6) 2.6 μg/m3 (11) 25.0
 
June 13, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 12.0 μg/m3 (11) 4.8 μg/m3 (20) 27.0
 
June 13, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 10.0 μg/m3 (9) 5.3 μg/m3 (22) 27.0
 
June 13, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 8.0 μg/m3 (7) 4.9 μg/m3 (20) 28.0
 
June 13, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 8.0 μg/m3 (7) 5.6 μg/m3 (23) 31.0
 
June 13, 2019, midnight N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 7.0 μg/m3 (6) 4.8 μg/m3 (20) 35.0
 
June 12, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 8.0 μg/m3 (7) 1.0 μg/m3 (4) 36.0
 
June 12, 2019, 10 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) 0.2 μg/m3 (1) 36.0
 
June 12, 2019, 9 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) 5.3 μg/m3 (22) 35.0
 
June 12, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 2.0 μg/m3 (2) 2.4 μg/m3 (10) 34.0
 
June 12, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 6.0 μg/m3 (5) 2.0 μg/m3 (8) 33.0
 
June 12, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 4.0 μg/m3 (4) 2.8 μg/m3 (12) 32.0
 
June 12, 2019, 5 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) 0.6 μg/m3 (2) 32.0
 
June 12, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 12.0 μg/m3 (11) 2.3 μg/m3 (10) 31.0
 
June 12, 2019, 3 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) 10.2 μg/m3 (42) 42.0
 
June 12, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 6.0 μg/m3 (5) 4.8 μg/m3 (20) 25.0
 
June 12, 2019, 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) 2.3 μg/m3 (10) 24.0
 
June 12, 2019, noon N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 6.0 μg/m3 (5) -2.4 μg/m3 (0) 20.0
 
June 12, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 6.0 μg/m3 (5) 2.9 μg/m3 (12) 17.0
 
June 12, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 9.0 μg/m3 (8) 2.7 μg/m3 (11) 17.0
 
June 12, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 5.0 μg/m3 (5) 4.4 μg/m3 (18) 18.0
 
June 12, 2019, 8 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) 6.5 μg/m3 (27) 27.0
 
June 12, 2019, 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) 9.7 μg/m3 (40) 40.0
 
June 12, 2019, 6 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) 1.9 μg/m3 (8) 22.0
 
June 12, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 11.0 μg/m3 (10) 4.4 μg/m3 (18) 21.0
 
June 12, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 12.0 μg/m3 (11) 6.3 μg/m3 (26) 26.0
 
June 12, 2019, 3 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) 5.6 μg/m3 (23) 23.0
 
June 12, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 9.0 μg/m3 (8) 9.6 μg/m3 (40) 40.0
 
June 12, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 0.0 μg/m3 (0) 2.4 μg/m3 (10) 31.0
 
June 12, 2019, midnight N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 10.0 μg/m3 (9) 0.4 μg/m3 (2) 32.0
 
June 11, 2019, 11 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 (0) 31.0
 
June 11, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 9.0 μg/m3 (8) 7.4 μg/m3 (31) 31.0
 
June 11, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 16.0 μg/m3 (15) 9.7 μg/m3 (40) 40.0
 
June 11, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 12.0 μg/m3 (11) 1.0 μg/m3 (4) 36.0
 
June 11, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 19.0 μg/m3 (17) 6.1 μg/m3 (25) 35.0
 
June 11, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 16.0 μg/m3 (15) 3.0 μg/m3 (12) 35.0
 
June 11, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 2.0 μg/m3 (2) 4.4 μg/m3 (18) 32.0
 
June 11, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 26.0 μg/m3 (24) 5.6 μg/m3 (23) 27.0
 
June 11, 2019, 3 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) 3.8 μg/m3 (16) 25.0
 
June 11, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 11.0 μg/m3 (10) 2.0 μg/m3 (8) 24.0
 
June 11, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 8.0 μg/m3 (7) -1.5 μg/m3 (0) 22.0
 
June 11, 2019, noon N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 9.0 μg/m3 (8) -0.1 μg/m3 (0) 18.0
 
June 11, 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) 3.7 μg/m3 (15) 15.0
 
June 11, 2019, 10 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) 3.5 μg/m3 (15) 15.0
 
June 11, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 10.0 μg/m3 (9) 1.7 μg/m3 (7) 17.0
 
June 11, 2019, 8 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) 6.4 μg/m3 (27) 27.0
 
June 11, 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 (1) 12.3 μg/m3 (51) 51.0
 
June 11, 2019, 6 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) 3.3 μg/m3 (14) 18.0
 
June 11, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 12.0 μg/m3 (11) 4.1 μg/m3 (17) 18.0
 
June 11, 2019, 4 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) 5.1 μg/m3 (21) 21.0
 
June 11, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 11.0 μg/m3 (10) 2.1 μg/m3 (9) 23.0
 
June 11, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 9.0 μg/m3 (8) 4.5 μg/m3 (19) 26.0
 
June 11, 2019, 1 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) 3.9 μg/m3 (16) 25.0
 
June 11, 2019, midnight N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 15.0 μg/m3 (14) 4.7 μg/m3 (20) 30.0
 
June 10, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 14.0 μg/m3 (13) 4.8 μg/m3 (20) 29.0
 
June 10, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 5.0 μg/m3 (5) 3.3 μg/m3 (14) 29.0
 
June 10, 2019, 9 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) -0.8 μg/m3 (0) 32.0
 
June 10, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 3.0 μg/m3 (3) -0.1 μg/m3 (0) 32.0
 
June 10, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A -2.0 μg/m3 (0) 0.3 μg/m3 (1) 32.0
 
June 10, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 0.0 μg/m3 (0) 0.2 μg/m3 (1) 31.0
 
June 10, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 5.0 μg/m3 (5) 0.6 μg/m3 (2) 30.0
 
June 10, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 8.0 μg/m3 (7) -2.4 μg/m3 (0) 27.0
 
June 10, 2019, 3 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) -4.2 μg/m3 (0) 24.0
 
June 10, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 1.0 μg/m3 (1) 2.4 μg/m3 (10) 20.0
 
June 10, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 5.0 μg/m3 (5) -3.1 μg/m3 (0) 19.0
 
June 10, 2019, noon N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 6.0 μg/m3 (5) -0.5 μg/m3 (0) 21.0
 
June 10, 2019, 11 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) 2.7 μg/m3 (11) 20.0
 
June 10, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 7.0 μg/m3 (6) 0.4 μg/m3 (2) 17.0
 
June 10, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 2.0 μg/m3 (2) 2.8 μg/m3 (12) 17.0
 
June 10, 2019, 8 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) 3.1 μg/m3 (13) 19.0
 
June 10, 2019, 7 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) -2.0 μg/m3 (0) 21.0
 
June 10, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 11.0 μg/m3 (10) 0.4 μg/m3 (2) 20.0
 
June 10, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 11.0 μg/m3 (10) 3.3 μg/m3 (14) 20.0
 
June 10, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 6.0 μg/m3 (5) 5.5 μg/m3 (23) 23.0
 
June 10, 2019, 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) 3.5 μg/m3 (15) 23.0
 
June 10, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 4.0 μg/m3 (4) 5.2 μg/m3 (22) 23.0
 
June 10, 2019, 1 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) -0.9 μg/m3 (0) 25.0
 
June 10, 2019, midnight N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 15.0 μg/m3 (14) 7.8 μg/m3 (32) 32.0
 
June 9, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 2.0 μg/m3 (2) 12.5 μg/m3 (51) 51.0
 
June 9, 2019, 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) 3.4 μg/m3 (14) 29.0
 
June 9, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 4.0 μg/m3 (4) 2.5 μg/m3 (10) 30.0
 
June 9, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 8.0 μg/m3 (7) 1.2 μg/m3 (5) 30.0
 
June 9, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 1.0 μg/m3 (1) 3.9 μg/m3 (16) 26.0
 
June 9, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 0.0 μg/m3 (0) 1.6 μg/m3 (7) 27.0
 
June 9, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 3.0 μg/m3 (3) 5.1 μg/m3 (21) 28.0
 
June 9, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 11.0 μg/m3 (10) 6.8 μg/m3 (28) 28.0
 
June 9, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 13.0 μg/m3 (12) 15.9 μg/m3 (58) 58.0
 
June 9, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 16.0 μg/m3 (15) 8.3 μg/m3 (35) 35.0
 
June 9, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 14.0 μg/m3 (13) 9.5 μg/m3 (40) 40.0
 
June 9, 2019, noon N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 14.0 μg/m3 (13) 8.0 μg/m3 (33) 33.0
 
June 9, 2019, 11 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) 9.7 μg/m3 (40) 40.0
 
June 9, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 13.0 μg/m3 (12) 10.7 μg/m3 (45) 45.0
 
June 9, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 21.0 μg/m3 (19) 10.2 μg/m3 (42) 42.0
 
June 9, 2019, 8 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) 13.6 μg/m3 (53) 53.0
 
June 9, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 14.0 μg/m3 (13) 13.6 μg/m3 (53) 53.0
 
June 9, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 29.0 μg/m3 (26) 20.2 μg/m3 (67) 67.0
 
June 9, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 37.0 μg/m3 (34) 23.6 μg/m3 (75) 75.0
 
June 9, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 28.0 μg/m3 (25) 22.4 μg/m3 (72) 72.0
 
June 9, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 26.0 μg/m3 (24) 17.8 μg/m3 (62) 62.0
 
June 9, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 20.0 μg/m3 (18) 14.9 μg/m3 (56) 56.0
 
June 9, 2019, 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) 10.1 μg/m3 (42) 42.0
 
June 9, 2019, midnight N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 10.0 μg/m3 (9) 7.6 μg/m3 (32) 32.0
 
June 8, 2019, 11 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) 7.2 μg/m3 (30) 30.0
 
June 8, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 3.0 μg/m3 (3) 2.4 μg/m3 (10) 28.0
 
June 8, 2019, 9 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) 4.7 μg/m3 (20) 25.0
 
June 8, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 3.0 μg/m3 (3) 2.7 μg/m3 (11) 23.0
 
June 8, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 5.0 μg/m3 (5) -2.9 μg/m3 (0) 22.0
 
June 8, 2019, 6 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) 3.5 μg/m3 (15) 18.0
 
June 8, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 5.0 μg/m3 (5) 2.1 μg/m3 (9) 18.0
 
June 8, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 7.0 μg/m3 (6) 3.1 μg/m3 (13) 17.0
 
June 8, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 10.0 μg/m3 (9) 4.3 μg/m3 (18) 18.0
 
June 8, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 5.0 μg/m3 (5) 1.5 μg/m3 (6) 17.0
 
June 8, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 10.0 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
June 8, 2019, noon N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 3.0 μg/m3 (3) 5.4 μg/m3 (23) 23.0
 
June 8, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 2.0 μg/m3 (2) 6.0 μg/m3 (25) 25.0
 
June 8, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 17.0 μg/m3 (15) 4.6 μg/m3 (19) 19.0
 
June 8, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 14.0 μg/m3 (13) 1.9 μg/m3 (8) 22.0
 
June 8, 2019, 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) 5.2 μg/m3 (22) 28.0
 
June 8, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 7.0 μg/m3 (6) 6.3 μg/m3 (26) 26.0
 
June 8, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 10.0 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
June 8, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 10.0 μg/m3 (9) 1.5 μg/m3 (6) 22.0
 
June 8, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 10.0 μg/m3 (9) 1.4 μg/m3 (6) 25.0
 
June 8, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 14.0 μg/m3 (13) -0.8 μg/m3 (0) 28.0
 
June 8, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 16.0 μg/m3 (15) 3.4 μg/m3 (14) 30.0
 
June 8, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 15.0 μg/m3 (14) 7.0 μg/m3 (29) 35.0
 
June 8, 2019, midnight N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 12.0 μg/m3 (11) 9.5 μg/m3 (40) 40.0
 
June 7, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A 18.0 μg/m3 (16) 6.1 μg/m3 (25) 41.0
 
June 7, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 21.0 μg/m3 (19) 1.8 μg/m3 (8) 40.0
 
June 7, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 17.0 μg/m3 (15) 0.0 μg/m3 (0) 40.0
 
June 7, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 15.0 μg/m3 (14) 2.4 μg/m3 (10) 38.0
 
June 7, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 18.0 μg/m3 (16) 8.2 μg/m3 (34) 36.0
 
June 7, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 15.0 μg/m3 (14) 9.7 μg/m3 (40) 40.0
 
June 7, 2019, 5 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) 12.1 μg/m3 (50) 50.0
 
June 7, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 16.0 μg/m3 (15) 7.5 μg/m3 (31) 31.0
 
June 7, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 17.0 μg/m3 (15) 1.4 μg/m3 (6) 21.0
 
June 7, 2019, 2 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) -0.7 μg/m3 (0) 19.0
 
June 7, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 17.0 μg/m3 (15) 5.0 μg/m3 (21) 21.0
 
June 7, 2019, noon N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 25.0 μg/m3 (23) 7.7 μg/m3 (32) 32.0
 
June 7, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 29.0 μg/m3 (26) 9.6 μg/m3 (40) 40.0
 
June 7, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 39.0 μg/m3 (35) 3.1 μg/m3 (13) 35.0
 
June 7, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 46.0 μg/m3 (42) 1.1 μg/m3 (5) 42.0
 
June 7, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 39.0 μg/m3 (35) 0.0 μg/m3 (0) 35.0
 
June 7, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 61.0 μg/m3 (53) 1.2 μg/m3 (5) 53.0
 
June 7, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 42.0 μg/m3 (38) 18.1 μg/m3 (63) 63.0
 
June 7, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 9.0 μg/m3 (8) 7.0 μg/m3 (29) 33.0
 
June 7, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 17.0 μg/m3 (15) 8.0 μg/m3 (33) 34.0
 
June 7, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 73.0 μg/m3 (59) 6.6 μg/m3 (28) 59.0
 
June 7, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 65.0 μg/m3 (55) 15.0 μg/m3 (56) 56.0
 
June 7, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 78.0 μg/m3 (62) 10.6 μg/m3 (44) 62.0
 
June 7, 2019, midnight N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 41.0 μg/m3 (37) -0.5 μg/m3 (0) 38.0
 
June 6, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 41.0 μg/m3 (37) 2.3 μg/m3 (10) 40.0
 
June 6, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A 41.0 μg/m3 (37) 6.2 μg/m3 (26) 41.0
 
June 6, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A 39.0 μg/m3 (35) 7.0 μg/m3 (29) 42.0
 
June 6, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A 48.0 μg/m3 (44) 5.0 μg/m3 (21) 44.0
 
June 6, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A 44.0 μg/m3 (40) 5.8 μg/m3 (24) 44.0
 
June 6, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A 38.0 μg/m3 (35) 9.2 μg/m3 (38) 45.0
 
June 6, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A 51.0 μg/m3 (46) 7.5 μg/m3 (31) 46.0
 
June 6, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A 36.0 μg/m3 (33) 6.5 μg/m3 (27) 41.0
 
June 6, 2019, 3 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) -1.1 μg/m3 (0) 38.0
 
June 6, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 31.0 μg/m3 (28) 3.6 μg/m3 (15) 40.0
 
June 6, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 27.0 μg/m3 (25) -0.3 μg/m3 (0) 36.0
 
June 6, 2019, noon N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 21.0 μg/m3 (19) 5.5 μg/m3 (23) 30.0
 
June 6, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 23.0 μg/m3 (21) 6.3 μg/m3 (26) 27.0