AQSQID: 300710010

Site Name: Malta

Location: Phillips Co, MT

Reporting: True, Located: True

Current AQI: 39.0

Phillips Co MT, US: 48.317507, -107.862471

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
July 22, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 35.0 μg/m3 (32) 9.3 μg/m3 (39) 39.0
 
July 22, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 39.0 μg/m3 (35) 5.4 μg/m3 (23) 35.0
 
July 22, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (15) 0.3 μg/m3 (1) 15.0
 
July 22, 2019, 8 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) 7.2 μg/m3 (30) 31.0
 
July 22, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 25.0 μg/m3 (23) 4.4 μg/m3 (18) 32.0
 
July 22, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 30.0 μg/m3 (27) 3.5 μg/m3 (15) 32.0
 
July 22, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 26.0 μg/m3 (24) 1.4 μg/m3 (6) 32.0
 
July 22, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 20.0 μg/m3 (18) -0.6 μg/m3 (0) 31.0
 
July 22, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 19.0 μg/m3 (17) N/A 28.0
 
July 22, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 2.0 μg/m3 (2) -1.0 μg/m3 (0) 25.0
 
July 22, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 0.0 μg/m3 (0) -3.3 μg/m3 (0) 20.0
 
July 22, 2019, noon N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 4.0 μg/m3 (4) 3.8 μg/m3 (16) 16.0
 
July 22, 2019, 11 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) 6.6 μg/m3 (28) 28.0
 
July 22, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 2.0 μg/m3 (2) 3.1 μg/m3 (13) 18.0
 
July 22, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 3.0 μg/m3 (3) 6.0 μg/m3 (25) 25.0
 
July 22, 2019, 8 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) 8.1 μg/m3 (34) 34.0
 
July 22, 2019, 7 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) 1.3 μg/m3 (5) 19.0
 
July 22, 2019, 6 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) 1.0 μg/m3 (4) 20.0
 
July 22, 2019, 5 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) 6.9 μg/m3 (29) 29.0
 
July 22, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 1.0 μg/m3 (1) 8.3 μg/m3 (35) 35.0
 
July 22, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 2.0 μg/m3 (2) 5.4 μg/m3 (23) 25.0
 
July 22, 2019, 2 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) 9.0 μg/m3 (38) 38.0
 
July 22, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 1.0 μg/m3 (1) 3.2 μg/m3 (13) 29.0
 
July 22, 2019, midnight N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 2.0 μg/m3 (2) 5.5 μg/m3 (23) 30.0
 
July 21, 2019, 11 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) 5.6 μg/m3 (23) 30.0
 
July 21, 2019, 10 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) 0.3 μg/m3 (1) 31.0
 
July 21, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 11.0 μg/m3 (10) 1.5 μg/m3 (6) 31.0
 
July 21, 2019, 8 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) -0.6 μg/m3 (0) 31.0
 
July 21, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 11.0 μg/m3 (10) -2.0 μg/m3 (0) 30.0
 
July 21, 2019, 6 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) 3.2 μg/m3 (13) 28.0
 
July 21, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 2.0 μg/m3 (2) -2.9 μg/m3 (0) 25.0
 
July 21, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 5.0 μg/m3 (5) 4.8 μg/m3 (20) 22.0
 
July 21, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 7.0 μg/m3 (6) 7.1 μg/m3 (30) 30.0
 
July 21, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 2.0 μg/m3 (2) 1.2 μg/m3 (5) 18.0
 
July 21, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 3.0 μg/m3 (3) 0.7 μg/m3 (3) 16.0
 
July 21, 2019, noon 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
 
July 21, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 5.0 μg/m3 (5) 6.4 μg/m3 (27) 27.0
 
July 21, 2019, 10 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) 7.7 μg/m3 (32) 32.0
 
July 21, 2019, 9 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) 4.4 μg/m3 (18) 25.0
 
July 21, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 3.0 μg/m3 (3) 8.1 μg/m3 (34) 34.0
 
July 21, 2019, 7 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
 
July 21, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 4.0 μg/m3 (4) 12.7 μg/m3 (51) 51.0
 
July 21, 2019, 5 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) 7.6 μg/m3 (32) 32.0
 
July 21, 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) 4.5 μg/m3 (19) 22.0
 
July 21, 2019, 3 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) 8.1 μg/m3 (34) 34.0
 
July 21, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 10.0 μg/m3 (9) 10.4 μg/m3 (43) 43.0
 
July 21, 2019, 1 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) -1.3 μg/m3 (0) 25.0
 
July 21, 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) -3.7 μg/m3 (0) 25.0
 
July 20, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 2.0 μg/m3 (2) N/A 25.0
 
July 20, 2019, 10 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) -0.2 μg/m3 (0) 24.0
 
July 20, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 6.0 μg/m3 (5) 5.3 μg/m3 (22) 24.0
 
July 20, 2019, 8 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) 1.8 μg/m3 (8) 22.0
 
July 20, 2019, 7 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) -1.9 μg/m3 (0) 22.0
 
July 20, 2019, 6 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) -0.3 μg/m3 (0) 22.0
 
July 20, 2019, 5 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) 3.1 μg/m3 (13) 21.0
 
July 20, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 7.0 μg/m3 (6) 0.0 μg/m3 (0) 19.0
 
July 20, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 1.0 μg/m3 (1) 6.4 μg/m3 (27) 27.0
 
July 20, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 0.0 μg/m3 (0) 3.7 μg/m3 (15) 17.0
 
July 20, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 3.0 μg/m3 (3) 5.3 μg/m3 (22) 22.0
 
July 20, 2019, noon N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 1.0 μg/m3 (1) 0.6 μg/m3 (2) 18.0
 
July 20, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 8.0 μg/m3 (7) 5.6 μg/m3 (23) 23.0
 
July 20, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 10.0 μg/m3 (9) 4.4 μg/m3 (18) 20.0
 
July 20, 2019, 9 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) 2.6 μg/m3 (11) 20.0
 
July 20, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 10.0 μg/m3 (9) 2.9 μg/m3 (12) 20.0
 
July 20, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 9.0 μg/m3 (8) 2.9 μg/m3 (12) 20.0
 
July 20, 2019, 6 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) 10.4 μg/m3 (43) 43.0
 
July 20, 2019, 5 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) 6.5 μg/m3 (27) 27.0
 
July 20, 2019, 4 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) 6.5 μg/m3 (27) 27.0
 
July 20, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 18.0 μg/m3 (16) 8.9 μg/m3 (37) 37.0
 
July 20, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 21.0 μg/m3 (19) 8.9 μg/m3 (37) 37.0
 
July 20, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 18.0 μg/m3 (16) 6.6 μg/m3 (28) 30.0
 
July 20, 2019, midnight N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 21.0 μg/m3 (19) 7.1 μg/m3 (30) 33.0
 
July 19, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 23.0 μg/m3 (21) 3.8 μg/m3 (16) 33.0
 
July 19, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 42.0 μg/m3 (38) 1.2 μg/m3 (5) 38.0
 
July 19, 2019, 9 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) 3.5 μg/m3 (15) 30.0
 
July 19, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 22.0 μg/m3 (20) 3.0 μg/m3 (12) 29.0
 
July 19, 2019, 7 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) -0.5 μg/m3 (0) 28.0
 
July 19, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 35.0 μg/m3 (32) 4.7 μg/m3 (20) 32.0
 
July 19, 2019, 5 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) 1.0 μg/m3 (4) 26.0
 
July 19, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 55.0 μg/m3 (50) 1.8 μg/m3 (8) 50.0
 
July 19, 2019, 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) 2.4 μg/m3 (10) 19.0
 
July 19, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 5.0 μg/m3 (21) 21.0
 
July 19, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 30.0 μg/m3 (27) 4.7 μg/m3 (20) 27.0
 
July 19, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 48.0 μg/m3 (44) N/A 44.0
 
July 19, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 18.0 μg/m3 (16) -0.6 μg/m3 (0) 24.0
 
July 19, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 1.0 μg/m3 (1) 6.7 μg/m3 (28) 28.0
 
July 19, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 21.0 μg/m3 (19) 6.8 μg/m3 (28) 28.0
 
July 19, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 24.0 μg/m3 (22) 5.1 μg/m3 (21) 28.0
 
July 19, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 15.0 μg/m3 (14) 7.2 μg/m3 (30) 30.0
 
July 19, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 24.0 μg/m3 (22) 3.3 μg/m3 (14) 28.0
 
July 19, 2019, midnight N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 40.0 μg/m3 (36) 1.4 μg/m3 (6) 36.0
 
July 18, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 28.0 μg/m3 (25) -0.6 μg/m3 (0) 28.0
 
July 18, 2019, 10 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) 1.9 μg/m3 (8) 26.0
 
July 18, 2019, 9 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) 6.4 μg/m3 (27) 27.0
 
July 18, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 17.0 μg/m3 (15) 0.5 μg/m3 (2) 25.0
 
July 18, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 14.0 μg/m3 (13) 0.5 μg/m3 (2) 25.0
 
July 18, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 15.0 μg/m3 (14) 3.9 μg/m3 (16) 24.0
 
July 18, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 18.0 μg/m3 (16) 1.4 μg/m3 (6) 22.0
 
July 18, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 22.0 μg/m3 (20) -0.2 μg/m3 (0) 21.0
 
July 18, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 20.0 μg/m3 (18) 4.7 μg/m3 (20) 20.0
 
July 18, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 8.0 μg/m3 (7) -3.7 μg/m3 (0) 19.0
 
July 18, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 0.0 μg/m3 (0) -1.6 μg/m3 (0) 20.0
 
July 18, 2019, noon N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 2.0 μg/m3 (2) -0.5 μg/m3 (0) 20.0
 
July 18, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 8.0 μg/m3 (7) 5.6 μg/m3 (23) 23.0
 
July 18, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 5.0 μg/m3 (5) 7.1 μg/m3 (30) 30.0
 
July 18, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 11.0 μg/m3 (10) 5.5 μg/m3 (23) 24.0
 
July 18, 2019, 8 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) 6.4 μg/m3 (27) 27.0
 
July 18, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 22.0 μg/m3 (20) 4.0 μg/m3 (17) 22.0
 
July 18, 2019, 6 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) 5.1 μg/m3 (21) 25.0
 
July 18, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 19.0 μg/m3 (17) 3.6 μg/m3 (15) 27.0
 
July 18, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 23.0 μg/m3 (21) 4.4 μg/m3 (18) 31.0
 
July 18, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 18.0 μg/m3 (16) 3.3 μg/m3 (14) 28.0
 
July 18, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 9.0 μg/m3 (8) 4.9 μg/m3 (20) 29.0
 
July 18, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A -3.0 μg/m3 (0) 5.1 μg/m3 (21) 28.0
 
July 18, 2019, midnight N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 5.0 μg/m3 (5) 2.6 μg/m3 (11) 30.0
 
July 17, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 6.0 μg/m3 (5) 0.8 μg/m3 (3) 34.0
 
July 17, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 2.0 μg/m3 (2) -0.6 μg/m3 (0) 36.0
 
July 17, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 31.0 μg/m3 (28) 2.6 μg/m3 (11) 35.0
 
July 17, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 30.0 μg/m3 (27) 0.1 μg/m3 (0) 33.0
 
July 17, 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) -2.9 μg/m3 (0) 31.0
 
July 17, 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) 4.6 μg/m3 (19) 31.0
 
July 17, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 12.0 μg/m3 (11) -0.8 μg/m3 (0) 32.0
 
July 17, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 12.0 μg/m3 (11) -0.7 μg/m3 (0) 29.0
 
July 17, 2019, 3 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) -4.1 μg/m3 (0) 26.0
 
July 17, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 1.0 μg/m3 (1) -4.5 μg/m3 (0) 21.0
 
July 17, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (14) N/A 1.0 μg/m3 (1) 1.0 μg/m3 (4) 14.0
 
July 17, 2019, noon N/A N/A N/A N/A N/A N/A 17.0 ppb (13) N/A 5.0 μg/m3 (5) 8.4 μg/m3 (35) 35.0
 
July 17, 2019, 11 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) 5.2 μg/m3 (22) 22.0
 
July 17, 2019, 10 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) 12.9 μg/m3 (52) 52.0
 
July 17, 2019, 9 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) 2.8 μg/m3 (12) 18.0
 
July 17, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 3.0 μg/m3 (3) 5.5 μg/m3 (23) 23.0
 
July 17, 2019, 7 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) 4.5 μg/m3 (19) 19.0
 
July 17, 2019, 6 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) 5.2 μg/m3 (22) 22.0
 
July 17, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 8.0 μg/m3 (7) 3.6 μg/m3 (15) 20.0
 
July 17, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 6.0 μg/m3 (5) 3.2 μg/m3 (13) 21.0
 
July 17, 2019, 3 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) 3.9 μg/m3 (16) 19.0
 
July 17, 2019, 2 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) 6.9 μg/m3 (29) 29.0
 
July 17, 2019, 1 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) 7.1 μg/m3 (30) 30.0
 
July 17, 2019, midnight N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 17.0 μg/m3 (15) 1.9 μg/m3 (8) 29.0
 
July 16, 2019, 11 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) 4.8 μg/m3 (20) 33.0
 
July 16, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 28.0 μg/m3 (25) 4.5 μg/m3 (19) 31.0
 
July 16, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 9.0 μg/m3 (8) N/A 32.0
 
July 16, 2019, 8 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) 6.5 μg/m3 (27) 29.0
 
July 16, 2019, 7 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) 15.6 μg/m3 (58) 58.0
 
July 16, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 6.0 μg/m3 (5) 1.2 μg/m3 (5) 31.0
 
July 16, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (6) 2.2 μg/m3 (9) 9.0
 
July 16, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (5) N/A 5.0
 
July 16, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) N/A 3.0
 
July 16, 2019, 2 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) -1.4 μg/m3 (0) 31.0
 
July 16, 2019, 1 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) 2.3 μg/m3 (10) 28.0
 
July 16, 2019, noon N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 4.0 μg/m3 (4) 7.3 μg/m3 (30) 30.0
 
July 16, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 10.0 μg/m3 (9) 2.8 μg/m3 (12) 28.0
 
July 16, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 20.0 μg/m3 (18) 9.5 μg/m3 (40) 40.0
 
July 16, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 18.0 μg/m3 (16) 7.0 μg/m3 (29) 29.0
 
July 16, 2019, 8 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) 4.0 μg/m3 (17) 25.0
 
July 16, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (26) N/A 7.0 μg/m3 (6) 5.0 μg/m3 (21) 26.0
 
July 16, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 9.0 μg/m3 (8) 4.9 μg/m3 (20) 27.0
 
July 16, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 6.0 μg/m3 (5) 4.5 μg/m3 (19) 28.0
 
July 16, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A -1.0 μg/m3 (0) 9.7 μg/m3 (40) 40.0
 
July 16, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 2.0 μg/m3 (2) 10.8 μg/m3 (45) 45.0
 
July 16, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 10.0 μg/m3 (9) 5.5 μg/m3 (23) 31.0
 
July 16, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 6.0 μg/m3 (5) 2.6 μg/m3 (11) 36.0
 
July 16, 2019, midnight N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 8.0 μg/m3 (7) 5.7 μg/m3 (24) 38.0
 
July 15, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 10.0 μg/m3 (9) 8.2 μg/m3 (34) 38.0
 
July 15, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 8.0 μg/m3 (7) 5.4 μg/m3 (23) 37.0
 
July 15, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 8.0 μg/m3 (7) -0.9 μg/m3 (0) 37.0
 
July 15, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 11.0 μg/m3 (10) 4.7 μg/m3 (20) 36.0
 
July 15, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 1.0 μg/m3 (1) 1.0 μg/m3 (4) 36.0