AQSQID: 300710010

Site Name: Malta

Location: Malta (Short Oil Rd), MT

Reporting: True, Located: True

Current AQI: 19.0

Malta (Short Oil Rd) MT, US: 48.317507, -107.862471

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 20, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 4.0 μg/m3 (4) 2.0 μg/m3 (8) 19.0
 
Jan. 20, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 1.0 μg/m3 (1) 3.4 μg/m3 (14) 18.0
 
Jan. 20, 2020, noon N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 5.0 μg/m3 (5) 2.3 μg/m3 (10) 18.0
 
Jan. 20, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 3.0 μg/m3 (3) 2.8 μg/m3 (12) 18.0
 
Jan. 20, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 5.0 μg/m3 (5) 4.3 μg/m3 (18) 19.0
 
Jan. 20, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 4.0 μg/m3 (4) 5.7 μg/m3 (24) 24.0
 
Jan. 20, 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) 7.9 μg/m3 (33) 33.0
 
Jan. 20, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 12.0 μg/m3 (11) 13.6 μg/m3 (53) 53.0
 
Jan. 20, 2020, 6 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) 6.7 μg/m3 (28) 28.0
 
Jan. 20, 2020, 5 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) 1.7 μg/m3 (7) 18.0
 
Jan. 20, 2020, 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) 5.8 μg/m3 (24) 24.0
 
Jan. 20, 2020, 3 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) 5.2 μg/m3 (22) 22.0
 
Jan. 20, 2020, 2 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) 6.3 μg/m3 (26) 26.0
 
Jan. 20, 2020, 1 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) 6.1 μg/m3 (25) 25.0
 
Jan. 20, 2020, midnight N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 18.0 μg/m3 (16) 0.3 μg/m3 (1) 21.0
 
Jan. 19, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 20.0 μg/m3 (18) N/A 21.0
 
Jan. 19, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 9.0 μg/m3 (8) 9.5 μg/m3 (40) 40.0
 
Jan. 19, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 4.0 μg/m3 (4) 7.8 μg/m3 (32) 32.0
 
Jan. 19, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 2.0 μg/m3 (2) 10.4 μg/m3 (43) 43.0
 
Jan. 19, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 1.0 μg/m3 (1) 7.4 μg/m3 (31) 31.0
 
Jan. 19, 2020, 6 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) 4.7 μg/m3 (20) 21.0
 
Jan. 19, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 3.0 μg/m3 (3) 2.9 μg/m3 (12) 21.0
 
Jan. 19, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A -1.0 μg/m3 (0) 2.8 μg/m3 (12) 22.0
 
Jan. 19, 2020, 3 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) 4.8 μg/m3 (20) 21.0
 
Jan. 19, 2020, 2 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) 3.6 μg/m3 (15) 21.0
 
Jan. 19, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 7.0 μg/m3 (6) 5.9 μg/m3 (25) 25.0
 
Jan. 19, 2020, noon N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 11.0 μg/m3 (10) 1.2 μg/m3 (5) 21.0
 
Jan. 19, 2020, 11 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) 3.8 μg/m3 (16) 20.0
 
Jan. 19, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 4.0 μg/m3 (4) 6.3 μg/m3 (26) 26.0
 
Jan. 19, 2020, 9 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) 9.7 μg/m3 (40) 40.0
 
Jan. 19, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 18.0 μg/m3 (16) 9.7 μg/m3 (40) 40.0
 
Jan. 19, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (15) N/A 16.0 μg/m3 (15) 3.5 μg/m3 (15) 15.0
 
Jan. 19, 2020, 6 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) 11.0 μg/m3 (46) 46.0
 
Jan. 19, 2020, 5 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) 15.4 μg/m3 (57) 57.0
 
Jan. 19, 2020, 4 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) 8.4 μg/m3 (35) 35.0
 
Jan. 19, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 13.0 μg/m3 (12) 13.1 μg/m3 (52) 52.0
 
Jan. 19, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 17.0 μg/m3 (15) 14.4 μg/m3 (55) 55.0
 
Jan. 19, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 18.0 μg/m3 (16) 17.0 μg/m3 (61) 61.0
 
Jan. 19, 2020, midnight N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 13.0 μg/m3 (12) 13.6 μg/m3 (53) 53.0
 
Jan. 18, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A 16.0 μg/m3 (15) 12.3 μg/m3 (51) 51.0
 
Jan. 18, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 15.0 μg/m3 (14) 14.6 μg/m3 (56) 56.0
 
Jan. 18, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 18.0 μg/m3 (16) 15.9 μg/m3 (58) 58.0
 
Jan. 18, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 11.0 μg/m3 (10) 14.4 μg/m3 (55) 55.0
 
Jan. 18, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 13.0 μg/m3 (12) 12.0 μg/m3 (50) 50.0
 
Jan. 18, 2020, 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) 9.6 μg/m3 (40) 40.0
 
Jan. 18, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 10.0 μg/m3 (9) 3.2 μg/m3 (13) 18.0
 
Jan. 18, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 10.0 μg/m3 (9) 7.1 μg/m3 (30) 30.0
 
Jan. 18, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 11.0 μg/m3 (10) 8.3 μg/m3 (35) 35.0
 
Jan. 18, 2020, 2 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) 8.4 μg/m3 (35) 35.0
 
Jan. 18, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 15.0 μg/m3 (14) 11.4 μg/m3 (48) 48.0
 
Jan. 18, 2020, noon N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 12.0 μg/m3 (11) 8.9 μg/m3 (37) 37.0
 
Jan. 18, 2020, 11 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) 9.5 μg/m3 (40) 40.0
 
Jan. 18, 2020, 10 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) 6.5 μg/m3 (27) 27.0
 
Jan. 18, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 11.0 μg/m3 (10) 6.4 μg/m3 (27) 27.0
 
Jan. 18, 2020, 8 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) 8.8 μg/m3 (37) 37.0
 
Jan. 18, 2020, 7 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) 7.1 μg/m3 (30) 30.0
 
Jan. 18, 2020, 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) 11.0 μg/m3 (46) 46.0
 
Jan. 18, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 7.0 μg/m3 (6) 7.2 μg/m3 (30) 30.0
 
Jan. 18, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A 11.0 μg/m3 (10) 10.5 μg/m3 (44) 44.0
 
Jan. 18, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A 13.0 μg/m3 (12) 10.2 μg/m3 (42) 42.0
 
Jan. 18, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (18) N/A 16.0 μg/m3 (15) 8.8 μg/m3 (37) 37.0
 
Jan. 18, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 18.0 μg/m3 (16) 8.9 μg/m3 (37) 37.0
 
Jan. 18, 2020, midnight N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 16.0 μg/m3 (15) 9.3 μg/m3 (39) 39.0
 
Jan. 17, 2020, 11 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) 15.3 μg/m3 (57) 57.0
 
Jan. 17, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 18.0 μg/m3 (16) 11.5 μg/m3 (48) 48.0
 
Jan. 17, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 19.0 μg/m3 (17) 6.4 μg/m3 (27) 27.0
 
Jan. 17, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 27.0 μg/m3 (25) 7.3 μg/m3 (30) 30.0
 
Jan. 17, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 24.0 μg/m3 (22) 9.0 μg/m3 (38) 38.0
 
Jan. 17, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 28.0 μg/m3 (25) 7.2 μg/m3 (30) 30.0
 
Jan. 17, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 21.0 μg/m3 (19) 8.4 μg/m3 (35) 35.0
 
Jan. 17, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 19.0 μg/m3 (17) 9.6 μg/m3 (40) 40.0
 
Jan. 17, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 0.0 μg/m3 (0) 5.3 μg/m3 (22) 22.0
 
Jan. 17, 2020, 2 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) 7.1 μg/m3 (30) 30.0
 
Jan. 17, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 9.0 μg/m3 (8) 5.5 μg/m3 (23) 23.0
 
Jan. 17, 2020, noon N/A N/A N/A N/A N/A N/A 23.0 ppb (18) N/A 4.0 μg/m3 (4) 5.2 μg/m3 (22) 22.0
 
Jan. 17, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 4.0 μg/m3 (4) 6.5 μg/m3 (27) 27.0
 
Jan. 17, 2020, 10 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 5.0 μg/m3 (5) 3.4 μg/m3 (14) 21.0
 
Jan. 17, 2020, 9 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 4.0 μg/m3 (4) 3.2 μg/m3 (13) 22.0
 
Jan. 17, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 13.0 μg/m3 (12) 2.8 μg/m3 (12) 22.0
 
Jan. 17, 2020, 7 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
 
Jan. 17, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 0.0 μg/m3 (0) 0.0 μg/m3 (0) 22.0
 
Jan. 17, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 5.0 μg/m3 (5) 2.3 μg/m3 (10) 22.0
 
Jan. 17, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 2.0 μg/m3 (2) 4.2 μg/m3 (18) 22.0
 
Jan. 17, 2020, 3 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) 0.6 μg/m3 (2) 22.0
 
Jan. 17, 2020, 2 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) 7.3 μg/m3 (30) 30.0
 
Jan. 17, 2020, 1 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 12.0 μg/m3 (11) 1.8 μg/m3 (8) 21.0
 
Jan. 17, 2020, midnight N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 15.0 μg/m3 (14) 10.6 μg/m3 (44) 44.0
 
Jan. 16, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 13.0 μg/m3 (12) 8.6 μg/m3 (36) 36.0
 
Jan. 16, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 2.0 μg/m3 (2) 8.9 μg/m3 (37) 37.0
 
Jan. 16, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 2.0 μg/m3 (2) 2.6 μg/m3 (11) 22.0
 
Jan. 16, 2020, 8 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) 2.9 μg/m3 (12) 21.0
 
Jan. 16, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A -1.0 μg/m3 (0) 4.7 μg/m3 (20) 21.0
 
Jan. 16, 2020, 6 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) 3.9 μg/m3 (16) 20.0
 
Jan. 16, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 2.0 μg/m3 (2) 5.4 μg/m3 (23) 23.0
 
Jan. 16, 2020, 4 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) 6.4 μg/m3 (27) 27.0
 
Jan. 16, 2020, 3 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) 4.6 μg/m3 (19) 20.0
 
Jan. 16, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 5.0 μg/m3 (5) 2.8 μg/m3 (12) 20.0
 
Jan. 16, 2020, 1 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) 3.5 μg/m3 (15) 21.0
 
Jan. 16, 2020, noon N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 6.0 μg/m3 (5) -4.3 μg/m3 (0) 22.0
 
Jan. 16, 2020, 11 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 4.0 μg/m3 (4) -7.1 μg/m3 (0) 22.0
 
Jan. 16, 2020, 10 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) 1.3 μg/m3 (5) 23.0
 
Jan. 16, 2020, 9 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) 10.6 μg/m3 (44) 44.0
 
Jan. 16, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 0.0 μg/m3 (0) 8.8 μg/m3 (37) 37.0
 
Jan. 16, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 14.1 μg/m3 (54) 54.0
 
Jan. 16, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 3.0 μg/m3 (3) 2.8 μg/m3 (12) 24.0
 
Jan. 16, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 4.0 μg/m3 (4) 3.8 μg/m3 (16) 22.0
 
Jan. 16, 2020, 4 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 4.0 μg/m3 (4) 4.1 μg/m3 (17) 20.0
 
Jan. 16, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 5.0 μg/m3 (5) 2.9 μg/m3 (12) 21.0
 
Jan. 16, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 4.0 μg/m3 (4) 2.0 μg/m3 (8) 20.0
 
Jan. 16, 2020, 1 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) 0.8 μg/m3 (3) 23.0
 
Jan. 16, 2020, midnight N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 6.0 μg/m3 (5) -0.4 μg/m3 (0) 25.0
 
Jan. 15, 2020, 11 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) -7.1 μg/m3 (0) 25.0
 
Jan. 15, 2020, 10 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) 3.2 μg/m3 (13) 26.0
 
Jan. 15, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 7.0 μg/m3 (6) 4.7 μg/m3 (20) 25.0
 
Jan. 15, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A 1.0 μg/m3 (1) 7.3 μg/m3 (30) 30.0
 
Jan. 15, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A -4.0 μg/m3 (0) -1.2 μg/m3 (0) 25.0
 
Jan. 15, 2020, 6 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 2.0 μg/m3 (2) 7.0 μg/m3 (29) 29.0
 
Jan. 15, 2020, 5 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) 10.3 μg/m3 (43) 43.0
 
Jan. 15, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 2.0 μg/m3 (2) 8.4 μg/m3 (35) 35.0
 
Jan. 15, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 10.0 μg/m3 (9) 13.8 μg/m3 (54) 54.0
 
Jan. 15, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 5.0 μg/m3 (5) 3.4 μg/m3 (14) 23.0
 
Jan. 15, 2020, 1 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
 
Jan. 15, 2020, noon N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 2.0 μg/m3 (2) 4.3 μg/m3 (18) 24.0
 
Jan. 15, 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) 8.9 μg/m3 (37) 37.0
 
Jan. 15, 2020, 10 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) 6.1 μg/m3 (25) 25.0
 
Jan. 15, 2020, 9 a.m. 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
 
Jan. 15, 2020, 8 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) 7.1 μg/m3 (30) 30.0
 
Jan. 15, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 8.0 μg/m3 (7) 9.4 μg/m3 (39) 39.0
 
Jan. 15, 2020, 6 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) 3.6 μg/m3 (15) 24.0
 
Jan. 15, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 5.0 μg/m3 (5) 4.0 μg/m3 (17) 24.0
 
Jan. 15, 2020, 4 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) 3.1 μg/m3 (13) 25.0
 
Jan. 15, 2020, 3 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) 6.1 μg/m3 (25) 25.0
 
Jan. 15, 2020, 2 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 2.0 μg/m3 (2) 3.9 μg/m3 (16) 25.0
 
Jan. 15, 2020, 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) 3.0 μg/m3 (12) 25.0
 
Jan. 15, 2020, midnight N/A N/A N/A N/A N/A N/A 32.0 ppb (25) N/A 4.0 μg/m3 (4) 6.3 μg/m3 (26) 26.0
 
Jan. 14, 2020, 11 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) 16.2 μg/m3 (59) 59.0
 
Jan. 14, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 8.0 μg/m3 (7) 6.4 μg/m3 (27) 27.0
 
Jan. 14, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 3.0 μg/m3 (3) 5.7 μg/m3 (24) 24.0
 
Jan. 14, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 3.0 μg/m3 (3) 1.9 μg/m3 (8) 24.0
 
Jan. 14, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 0.0 μg/m3 (0) 6.5 μg/m3 (27) 27.0
 
Jan. 14, 2020, 6 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) 6.5 μg/m3 (27) 27.0
 
Jan. 14, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 0.0 μg/m3 (0) 5.7 μg/m3 (24) 24.0
 
Jan. 14, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 3.0 μg/m3 (3) 9.0 μg/m3 (38) 38.0
 
Jan. 14, 2020, 3 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A 6.0 μg/m3 (5) 10.5 μg/m3 (44) 44.0
 
Jan. 14, 2020, 2 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 2.0 μg/m3 (2) -0.2 μg/m3 (0) 22.0
 
Jan. 14, 2020, 1 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 1.0 μg/m3 (1) 6.3 μg/m3 (26) 26.0
 
Jan. 14, 2020, noon N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 4.0 μg/m3 (4) 1.3 μg/m3 (5) 22.0
 
Jan. 14, 2020, 11 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) 6.4 μg/m3 (27) 27.0
 
Jan. 14, 2020, 10 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) 2.8 μg/m3 (12) 21.0
 
Jan. 14, 2020, 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) 1.8 μg/m3 (8) 21.0
 
Jan. 14, 2020, 8 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A -1.0 μg/m3 (0) 4.7 μg/m3 (20) 20.0
 
Jan. 14, 2020, 7 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 0.0 μg/m3 (0) 5.5 μg/m3 (23) 23.0
 
Jan. 14, 2020, 6 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 5.0 μg/m3 (5) 2.6 μg/m3 (11) 21.0
 
Jan. 14, 2020, 5 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A 2.0 μg/m3 (2) 4.9 μg/m3 (20) 22.0
 
Jan. 14, 2020, 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) 2.5 μg/m3 (10) 22.0
 
Jan. 14, 2020, 3 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A 1.0 μg/m3 (1) 2.4 μg/m3 (10) 22.0
 
Jan. 14, 2020, 2 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) 2.2 μg/m3 (9) 21.0
 
Jan. 14, 2020, 1 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) 0.2 μg/m3 (1) 19.0
 
Jan. 14, 2020, midnight N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 9.0 μg/m3 (8) 1.5 μg/m3 (6) 19.0
 
Jan. 13, 2020, 11 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A 11.0 μg/m3 (10) 0.7 μg/m3 (3) 20.0
 
Jan. 13, 2020, 10 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 4.0 μg/m3 (4) 2.6 μg/m3 (11) 21.0
 
Jan. 13, 2020, 9 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 4.0 μg/m3 (4) 5.2 μg/m3 (22) 22.0
 
Jan. 13, 2020, 8 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 0.0 μg/m3 (0) 3.9 μg/m3 (16) 21.0
 
Jan. 13, 2020, 7 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A 2.0 μg/m3 (2) -4.4 μg/m3 (0) 21.0
 
Jan. 13, 2020, 6 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) -1.5 μg/m3 (0) 20.0
 
Jan. 13, 2020, 5 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 2.0 μg/m3 (2) 6.5 μg/m3 (27) 27.0
 
Jan. 13, 2020, 4 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (19) N/A 0.0 μg/m3 (0) 5.0 μg/m3 (21) 21.0
 
Jan. 13, 2020, 3 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) 1.4 μg/m3 (6) 19.0