AQSQID: 300830002

Site Name: Sidney 201

Location: Richland Co, MT

Reporting: True, Located: True

Current AQI: 20.0

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
July 16, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 18.0 μg/m3 (16) 3.8 μg/m3 (16) 20.0
 
July 16, 2019, 4 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) 4.2 μg/m3 (18) 20.0
 
July 16, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 38.0 μg/m3 (35) 1.9 μg/m3 (8) 35.0
 
July 16, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 31.0 μg/m3 (28) 0.8 μg/m3 (3) 28.0
 
July 16, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 21.0 μg/m3 (19) 3.7 μg/m3 (15) 19.0
 
July 16, 2019, noon N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 13.0 μg/m3 (12) 4.5 μg/m3 (19) 19.0
 
July 16, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 13.0 μg/m3 (12) 3.2 μg/m3 (13) 15.0
 
July 16, 2019, 10 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) 4.7 μg/m3 (20) 22.0
 
July 16, 2019, 9 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) 3.0 μg/m3 (12) 23.0
 
July 16, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 19.0 μg/m3 (17) -0.9 μg/m3 (0) 22.0
 
July 16, 2019, 7 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) 1.3 μg/m3 (5) 24.0
 
July 16, 2019, 6 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) 1.2 μg/m3 (5) 22.0
 
July 16, 2019, 5 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) 0.0 μg/m3 (0) 23.0
 
July 16, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 3.0 μg/m3 (3) -0.6 μg/m3 (0) 25.0
 
July 16, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A N/A -3.2 μg/m3 (0) 26.0
 
July 16, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A -3.9 μg/m3 (0) 27.0
 
July 16, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 5.4 μg/m3 (23) 34.0
 
July 16, 2019, midnight N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 15.0 μg/m3 (14) 9.1 μg/m3 (38) 38.0
 
July 15, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 16.0 μg/m3 (15) 9.4 μg/m3 (39) 39.0
 
July 15, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 7.0 μg/m3 (6) 3.5 μg/m3 (15) 40.0
 
July 15, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 4.0 μg/m3 (4) 6.8 μg/m3 (28) 40.0
 
July 15, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A 8.0 μg/m3 (7) 9.2 μg/m3 (38) 41.0
 
July 15, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 7.0 μg/m3 (6) 7.3 μg/m3 (30) 39.0
 
July 15, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 10.0 μg/m3 (9) 2.4 μg/m3 (10) 38.0
 
July 15, 2019, 5 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) 3.5 μg/m3 (15) 33.0
 
July 15, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 14.0 μg/m3 (13) 2.0 μg/m3 (8) 28.0
 
July 15, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 8.0 μg/m3 (7) 2.3 μg/m3 (10) 25.0
 
July 15, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 9.0 μg/m3 (8) 3.8 μg/m3 (16) 22.0
 
July 15, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 8.0 μg/m3 (7) 0.0 μg/m3 (0) 20.0
 
July 15, 2019, noon N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 8.0 μg/m3 (7) 1.2 μg/m3 (5) 17.0
 
July 15, 2019, 11 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) 3.3 μg/m3 (14) 17.0
 
July 15, 2019, 10 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) 0.2 μg/m3 (1) 22.0
 
July 15, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 6.0 μg/m3 (5) 1.3 μg/m3 (5) 22.0
 
July 15, 2019, 8 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) -3.3 μg/m3 (0) 22.0
 
July 15, 2019, 7 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) N/A 25.0
 
July 15, 2019, 6 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) 4.9 μg/m3 (20) 27.0
 
July 15, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 40.0 μg/m3 (36) 22.7 μg/m3 (73) 73.0
 
July 15, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 32.0 μg/m3 (29) 13.3 μg/m3 (53) 53.0
 
July 15, 2019, 3 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) 5.8 μg/m3 (24) 24.0
 
July 15, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 13.0 μg/m3 (12) 4.5 μg/m3 (19) 22.0
 
July 15, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 3.0 μg/m3 (3) 0.6 μg/m3 (2) 25.0
 
July 15, 2019, midnight N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 5.0 μg/m3 (5) 9.0 μg/m3 (38) 38.0
 
July 14, 2019, 11 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) 3.1 μg/m3 (13) 28.0
 
July 14, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 22.0 μg/m3 (20) 1.9 μg/m3 (8) 28.0
 
July 14, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 38.0 μg/m3 (35) 3.3 μg/m3 (14) 35.0
 
July 14, 2019, 8 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) 3.3 μg/m3 (14) 27.0
 
July 14, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 7.0 μg/m3 (6) -0.1 μg/m3 (0) 25.0
 
July 14, 2019, 6 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) 0.7 μg/m3 (3) 24.0
 
July 14, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 7.0 μg/m3 (6) -0.6 μg/m3 (0) 25.0
 
July 14, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 2.0 μg/m3 (2) 11.6 μg/m3 (48) 48.0
 
July 14, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A -1.0 μg/m3 (0) 23.1 μg/m3 (74) 74.0
 
July 14, 2019, 2 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) 1.8 μg/m3 (8) 22.0
 
July 14, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 7.0 μg/m3 (6) -0.3 μg/m3 (0) 20.0
 
July 14, 2019, noon N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 8.0 μg/m3 (7) -1.1 μg/m3 (0) 15.0
 
July 14, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 6.0 μg/m3 (5) 5.4 μg/m3 (23) 23.0
 
July 14, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 5.0 μg/m3 (5) 3.2 μg/m3 (13) 17.0
 
July 14, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 5.0 μg/m3 (5) 4.7 μg/m3 (20) 20.0
 
July 14, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 8.0 μg/m3 (7) 2.1 μg/m3 (9) 15.0
 
July 14, 2019, 7 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) -2.3 μg/m3 (0) 17.0
 
July 14, 2019, 6 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) 1.8 μg/m3 (8) 18.0
 
July 14, 2019, 5 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) 4.1 μg/m3 (17) 20.0
 
July 14, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 33.0 μg/m3 (30) 14.2 μg/m3 (55) 55.0
 
July 14, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 17.0 μg/m3 (15) 7.2 μg/m3 (30) 30.0
 
July 14, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 16.0 μg/m3 (15) 6.3 μg/m3 (26) 26.0
 
July 14, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 10.0 μg/m3 (9) -3.6 μg/m3 (0) 26.0
 
July 14, 2019, midnight N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 6.0 μg/m3 (5) N/A 28.0
 
July 13, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 10.0 μg/m3 (9) N/A 33.0
 
July 13, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 12.0 μg/m3 (11) 3.4 μg/m3 (14) 35.0
 
July 13, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 12.0 μg/m3 (11) 1.9 μg/m3 (8) 35.0
 
July 13, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 9.0 μg/m3 (8) 8.9 μg/m3 (37) 37.0
 
July 13, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 10.0 μg/m3 (9) 4.7 μg/m3 (20) 31.0
 
July 13, 2019, 6 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) 5.9 μg/m3 (25) 31.0
 
July 13, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (7) 6.4 μg/m3 (27) 27.0
 
July 13, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 3.7 μg/m3 (15) 15.0
 
July 13, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 10.0 μg/m3 (42) 42.0
 
July 13, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 22.0 μg/m3 (20) -4.5 μg/m3 (0) 20.0
 
July 13, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 6.0 μg/m3 (5) -0.1 μg/m3 (0) 18.0
 
July 13, 2019, noon N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 8.0 μg/m3 (7) 2.8 μg/m3 (12) 18.0
 
July 13, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 8.0 μg/m3 (7) 2.4 μg/m3 (10) 17.0
 
July 13, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 8.0 μg/m3 (7) 5.5 μg/m3 (23) 23.0
 
July 13, 2019, 9 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) 7.5 μg/m3 (31) 31.0
 
July 13, 2019, 8 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) 1.7 μg/m3 (7) 18.0
 
July 13, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 5.0 μg/m3 (5) 1.9 μg/m3 (8) 18.0
 
July 13, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 10.0 μg/m3 (9) 5.0 μg/m3 (21) 21.0
 
July 13, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 12.0 μg/m3 (11) 3.8 μg/m3 (16) 20.0
 
July 13, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 6.0 μg/m3 (5) 2.0 μg/m3 (8) 22.0
 
July 13, 2019, 3 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) 10.3 μg/m3 (43) 43.0
 
July 13, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 12.0 μg/m3 (11) 12.4 μg/m3 (51) 51.0
 
July 13, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 13.0 μg/m3 (12) 0.9 μg/m3 (4) 22.0
 
July 13, 2019, midnight N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 11.0 μg/m3 (10) 2.9 μg/m3 (12) 25.0
 
July 12, 2019, 11 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) 1.3 μg/m3 (5) 28.0
 
July 12, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 13.0 μg/m3 (12) 1.5 μg/m3 (6) 28.0
 
July 12, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 14.0 μg/m3 (13) 6.3 μg/m3 (26) 28.0
 
July 12, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 8.0 μg/m3 (7) 3.2 μg/m3 (13) 28.0
 
July 12, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 17.0 μg/m3 (15) 1.3 μg/m3 (5) 30.0
 
July 12, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 24.0 μg/m3 (22) 4.3 μg/m3 (18) 28.0
 
July 12, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 31.0 μg/m3 (28) 4.4 μg/m3 (18) 31.0
 
July 12, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 24.0 μg/m3 (22) 14.4 μg/m3 (55) 55.0
 
July 12, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 19.0 μg/m3 (17) 8.3 μg/m3 (35) 35.0
 
July 12, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 14.0 μg/m3 (13) 3.1 μg/m3 (13) 22.0
 
July 12, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 12.0 μg/m3 (11) 2.5 μg/m3 (10) 18.0
 
July 12, 2019, noon N/A N/A N/A N/A N/A N/A 14.0 ppb (11) N/A 15.0 μg/m3 (14) 2.5 μg/m3 (10) 14.0
 
July 12, 2019, 11 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) 4.9 μg/m3 (20) 20.0
 
July 12, 2019, 10 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) 4.9 μg/m3 (20) 20.0
 
July 12, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 7.0 μg/m3 (6) 6.3 μg/m3 (26) 26.0
 
July 12, 2019, 8 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) 7.5 μg/m3 (31) 31.0
 
July 12, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 9.0 μg/m3 (8) 9.3 μg/m3 (39) 39.0
 
July 12, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 10.0 μg/m3 (9) 5.4 μg/m3 (23) 23.0
 
July 12, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 16.0 μg/m3 (15) 5.4 μg/m3 (23) 23.0
 
July 12, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 15.0 μg/m3 (14) 3.0 μg/m3 (12) 19.0
 
July 12, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 32.0 μg/m3 (29) 2.1 μg/m3 (9) 29.0
 
July 12, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 23.0 μg/m3 (21) -0.5 μg/m3 (0) 21.0
 
July 12, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 17.0 μg/m3 (15) 0.4 μg/m3 (2) 23.0
 
July 12, 2019, midnight N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 19.0 μg/m3 (17) -1.4 μg/m3 (0) 27.0
 
July 11, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 26.0 μg/m3 (24) -0.9 μg/m3 (0) 28.0
 
July 11, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 10.0 μg/m3 (9) 6.2 μg/m3 (26) 27.0
 
July 11, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 16.0 μg/m3 (15) 5.2 μg/m3 (22) 26.0
 
July 11, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 13.0 μg/m3 (12) 3.1 μg/m3 (13) 26.0
 
July 11, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 6.0 μg/m3 (5) 7.6 μg/m3 (32) 32.0
 
July 11, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 16.0 μg/m3 (15) 10.2 μg/m3 (42) 42.0
 
July 11, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 15.0 μg/m3 (14) 13.7 μg/m3 (54) 54.0
 
July 11, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A N/A N/A 25.0
 
July 11, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 10.0 μg/m3 (9) -1.0 μg/m3 (0) 20.0
 
July 11, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 12.0 μg/m3 (11) 1.2 μg/m3 (5) 17.0
 
July 11, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 10.0 μg/m3 (9) -0.9 μg/m3 (0) 19.0
 
July 11, 2019, noon N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 13.0 μg/m3 (12) 4.0 μg/m3 (17) 19.0
 
July 11, 2019, 11 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) 4.2 μg/m3 (18) 21.0
 
July 11, 2019, 10 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) 1.4 μg/m3 (6) 22.0
 
July 11, 2019, 9 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) 1.1 μg/m3 (5) 22.0
 
July 11, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 14.0 μg/m3 (13) 4.3 μg/m3 (18) 22.0
 
July 11, 2019, 7 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) 10.1 μg/m3 (42) 42.0
 
July 11, 2019, 6 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) 3.6 μg/m3 (15) 22.0
 
July 11, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 15.0 μg/m3 (14) 2.8 μg/m3 (12) 22.0
 
July 11, 2019, 4 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) 5.7 μg/m3 (24) 24.0
 
July 11, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 2.0 μg/m3 (2) -1.3 μg/m3 (0) 21.0
 
July 11, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 16.0 μg/m3 (15) -4.8 μg/m3 (0) 21.0
 
July 11, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 40.0 μg/m3 (36) 0.0 μg/m3 (0) 36.0
 
July 11, 2019, midnight N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 17.0 μg/m3 (15) 10.3 μg/m3 (43) 43.0
 
July 10, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 13.0 μg/m3 (12) 4.0 μg/m3 (17) 31.0
 
July 10, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 25.0 μg/m3 (23) 2.3 μg/m3 (10) 29.0
 
July 10, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 6.0 μg/m3 (5) 2.7 μg/m3 (11) 29.0
 
July 10, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 13.0 μg/m3 (12) 2.6 μg/m3 (11) 29.0
 
July 10, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 8.0 μg/m3 (7) 4.4 μg/m3 (18) 28.0
 
July 10, 2019, 6 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) 4.2 μg/m3 (18) 27.0
 
July 10, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 13.0 μg/m3 (12) 10.6 μg/m3 (44) 44.0
 
July 10, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 8.0 μg/m3 (7) 9.4 μg/m3 (39) 39.0
 
July 10, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 12.0 μg/m3 (11) 4.8 μg/m3 (20) 22.0
 
July 10, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 13.0 μg/m3 (12) 3.2 μg/m3 (13) 18.0
 
July 10, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 8.0 μg/m3 (7) 1.8 μg/m3 (8) 15.0
 
July 10, 2019, noon N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 8.0 μg/m3 (7) 6.5 μg/m3 (27) 27.0
 
July 10, 2019, 11 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) 3.4 μg/m3 (14) 14.0
 
July 10, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (12) N/A 12.0 μg/m3 (11) 4.4 μg/m3 (18) 18.0
 
July 10, 2019, 9 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) 9.3 μg/m3 (39) 39.0
 
July 10, 2019, 8 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) 15.4 μg/m3 (57) 57.0
 
July 10, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 3.0 μg/m3 (3) 13.7 μg/m3 (54) 54.0
 
July 10, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 7.0 μg/m3 (6) 7.8 μg/m3 (32) 32.0
 
July 10, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 11.0 μg/m3 (10) 4.5 μg/m3 (19) 19.0
 
July 10, 2019, 4 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) 5.8 μg/m3 (24) 24.0
 
July 10, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 12.0 μg/m3 (11) 6.9 μg/m3 (29) 29.0
 
July 10, 2019, 2 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) 7.3 μg/m3 (30) 30.0
 
July 10, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 9.0 μg/m3 (8) 2.5 μg/m3 (10) 22.0
 
July 10, 2019, midnight N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 8.0 μg/m3 (7) 5.8 μg/m3 (24) 24.0
 
July 9, 2019, 11 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) 15.9 μg/m3 (58) 58.0
 
July 9, 2019, 10 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) 7.2 μg/m3 (30) 32.0
 
July 9, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 6.0 μg/m3 (5) 4.0 μg/m3 (17) 29.0
 
July 9, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 7.0 μg/m3 (6) 5.5 μg/m3 (23) 31.0
 
July 9, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 6.0 μg/m3 (5) 4.8 μg/m3 (20) 28.0
 
July 9, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 7.0 μg/m3 (6) 2.1 μg/m3 (9) 29.0