AQSQID: 300710010

Site Name: Malta

Location: Phillips Co, MT

Reporting: True, Located: True

Current AQI: 40.0

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
March 20, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 7.0 μg/m3 (6) 9.7 μg/m3 (40) 40.0
 
March 20, 2019, 3 a.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
 
March 20, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 15.0 μg/m3 (14) 13.8 μg/m3 (54) 54.0
 
March 20, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 10.0 μg/m3 (9) 6.5 μg/m3 (27) 39.0
 
March 20, 2019, midnight N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A 8.0 μg/m3 (7) 14.0 μg/m3 (54) 54.0
 
March 19, 2019, 11 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) 24.2 μg/m3 (76) 76.0
 
March 19, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 9.0 μg/m3 (8) 5.9 μg/m3 (25) 36.0
 
March 19, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 7.0 μg/m3 (6) 1.2 μg/m3 (5) 33.0
 
March 19, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 10.0 μg/m3 (9) 3.1 μg/m3 (13) 32.0
 
March 19, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 8.0 μg/m3 (7) 7.5 μg/m3 (31) 31.0
 
March 19, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 4.0 μg/m3 (4) 3.3 μg/m3 (14) 32.0
 
March 19, 2019, 5 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) 3.8 μg/m3 (16) 33.0
 
March 19, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 1.0 μg/m3 (1) 5.6 μg/m3 (23) 32.0
 
March 19, 2019, 3 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) 8.6 μg/m3 (36) 36.0
 
March 19, 2019, 2 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) 12.1 μg/m3 (50) 50.0
 
March 19, 2019, 1 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) 10.8 μg/m3 (45) 45.0
 
March 19, 2019, noon N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 12.0 μg/m3 (11) 6.5 μg/m3 (27) 27.0
 
March 19, 2019, 11 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) 11.4 μg/m3 (48) 48.0
 
March 19, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 11.0 μg/m3 (10) 8.1 μg/m3 (34) 34.0
 
March 19, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 12.0 μg/m3 (11) 11.8 μg/m3 (49) 49.0
 
March 19, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 9.0 μg/m3 (8) 5.1 μg/m3 (21) 28.0
 
March 19, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 5.0 μg/m3 (5) 4.4 μg/m3 (18) 28.0
 
March 19, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 10.0 μg/m3 (9) 8.3 μg/m3 (35) 35.0
 
March 19, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 10.0 μg/m3 (9) 7.8 μg/m3 (32) 32.0
 
March 19, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 7.0 μg/m3 (6) 8.2 μg/m3 (34) 34.0
 
March 19, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 11.0 μg/m3 (10) 13.9 μg/m3 (54) 54.0
 
March 19, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 17.0 μg/m3 (15) 12.1 μg/m3 (50) 50.0
 
March 19, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 9.0 μg/m3 (8) 8.2 μg/m3 (34) 34.0
 
March 19, 2019, midnight N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 8.0 μg/m3 (7) 10.7 μg/m3 (45) 45.0
 
March 18, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 4.0 μg/m3 (4) 7.6 μg/m3 (32) 38.0
 
March 18, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 5.0 μg/m3 (5) 2.6 μg/m3 (11) 38.0
 
March 18, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 5.0 μg/m3 (5) 4.3 μg/m3 (18) 37.0
 
March 18, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 0.0 μg/m3 (0) 2.2 μg/m3 (9) 37.0
 
March 18, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 5.0 μg/m3 (5) 4.6 μg/m3 (19) 37.0
 
March 18, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 3.0 μg/m3 (3) 4.0 μg/m3 (17) 35.0
 
March 18, 2019, 5 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) 0.9 μg/m3 (4) 32.0
 
March 18, 2019, 4 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) -1.6 μg/m3 (0) 30.0
 
March 18, 2019, 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) 1.8 μg/m3 (8) 28.0
 
March 18, 2019, 2 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) 4.8 μg/m3 (20) 28.0
 
March 18, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A 4.0 μg/m3 (4) 6.1 μg/m3 (25) 27.0
 
March 18, 2019, noon N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A 7.0 μg/m3 (6) 4.9 μg/m3 (20) 24.0
 
March 18, 2019, 11 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) 5.6 μg/m3 (23) 26.0
 
March 18, 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) 4.6 μg/m3 (19) 27.0
 
March 18, 2019, 9 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) 6.5 μg/m3 (27) 27.0
 
March 18, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 4.0 μg/m3 (4) 8.9 μg/m3 (37) 37.0
 
March 18, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 2.0 μg/m3 (2) 5.9 μg/m3 (25) 29.0
 
March 18, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 9.0 μg/m3 (8) 5.7 μg/m3 (24) 31.0
 
March 18, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 7.0 μg/m3 (6) 6.5 μg/m3 (27) 32.0
 
March 18, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 6.0 μg/m3 (5) 6.9 μg/m3 (29) 33.0
 
March 18, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 10.0 μg/m3 (9) 8.7 μg/m3 (36) 36.0
 
March 18, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 13.0 μg/m3 (12) 10.7 μg/m3 (45) 45.0
 
March 18, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 18.0 μg/m3 (16) 12.9 μg/m3 (52) 52.0
 
March 18, 2019, midnight N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 12.0 μg/m3 (11) 9.2 μg/m3 (38) 38.0
 
March 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) 3.7 μg/m3 (15) 34.0
 
March 17, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 7.0 μg/m3 (6) 6.3 μg/m3 (26) 35.0
 
March 17, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 12.0 μg/m3 (11) 7.3 μg/m3 (30) 34.0
 
March 17, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 5.0 μg/m3 (5) 4.3 μg/m3 (18) 32.0
 
March 17, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 10.0 μg/m3 (9) 7.8 μg/m3 (32) 32.0
 
March 17, 2019, 6 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) 1.7 μg/m3 (7) 28.0
 
March 17, 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) -0.5 μg/m3 (0) 28.0
 
March 17, 2019, 4 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) 2.6 μg/m3 (11) 27.0
 
March 17, 2019, 3 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) 8.1 μg/m3 (34) 34.0
 
March 17, 2019, 2 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) 7.7 μg/m3 (32) 32.0
 
March 17, 2019, 1 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) 7.7 μg/m3 (32) 32.0
 
March 17, 2019, noon N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 8.0 μg/m3 (7) 8.0 μg/m3 (33) 33.0
 
March 17, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 12.0 μg/m3 (11) 10.7 μg/m3 (45) 45.0
 
March 17, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 11.0 μg/m3 (10) 12.0 μg/m3 (50) 50.0
 
March 17, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 14.0 μg/m3 (13) 14.7 μg/m3 (56) 56.0
 
March 17, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 10.0 μg/m3 (9) 16.4 μg/m3 (59) 59.0
 
March 17, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 9.0 μg/m3 (8) 11.4 μg/m3 (48) 48.0
 
March 17, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 8.0 μg/m3 (7) 9.6 μg/m3 (40) 40.0
 
March 17, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 9.0 μg/m3 (8) 4.0 μg/m3 (17) 31.0
 
March 17, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A 9.0 μg/m3 (8) 7.7 μg/m3 (32) 32.0
 
March 17, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 4.0 μg/m3 (4) 8.4 μg/m3 (35) 35.0
 
March 17, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 8.0 μg/m3 (7) 5.6 μg/m3 (23) 32.0
 
March 17, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 9.0 μg/m3 (8) 5.3 μg/m3 (22) 32.0
 
March 17, 2019, midnight N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 5.0 μg/m3 (5) 3.0 μg/m3 (12) 33.0
 
March 16, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A -4.0 μg/m3 (0) -1.5 μg/m3 (0) 35.0
 
March 16, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 5.0 μg/m3 (5) 4.1 μg/m3 (17) 36.0
 
March 16, 2019, 9 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) 0.9 μg/m3 (4) 36.0
 
March 16, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 5.0 μg/m3 (5) 0.2 μg/m3 (1) 36.0
 
March 16, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 0.0 μg/m3 (0) -2.2 μg/m3 (0) 36.0
 
March 16, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 4.0 μg/m3 (4) -0.7 μg/m3 (0) 35.0
 
March 16, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 0.0 μg/m3 (0) 0.1 μg/m3 (0) 34.0
 
March 16, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A N/A 32.0
 
March 16, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A N/A 34.0
 
March 16, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 1.0 μg/m3 (1) 2.6 μg/m3 (11) 33.0
 
March 16, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 4.0 μg/m3 (4) 1.4 μg/m3 (6) 33.0
 
March 16, 2019, noon N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 6.0 μg/m3 (5) 3.6 μg/m3 (15) 34.0
 
March 16, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 6.0 μg/m3 (5) 9.6 μg/m3 (40) 40.0
 
March 16, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 6.0 μg/m3 (5) 8.8 μg/m3 (37) 37.0
 
March 16, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 13.0 μg/m3 (12) 8.8 μg/m3 (37) 37.0
 
March 16, 2019, 8 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) 10.6 μg/m3 (44) 44.0
 
March 16, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 6.0 μg/m3 (5) 18.0 μg/m3 (63) 63.0
 
March 16, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 11.0 μg/m3 (10) 8.8 μg/m3 (37) 37.0
 
March 16, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 10.0 μg/m3 (9) 10.3 μg/m3 (43) 43.0
 
March 16, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 8.0 μg/m3 (7) 9.3 μg/m3 (39) 39.0
 
March 16, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 15.0 μg/m3 (14) 9.0 μg/m3 (38) 38.0
 
March 16, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 9.0 μg/m3 (8) 11.1 μg/m3 (46) 46.0
 
March 16, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 13.0 μg/m3 (12) 10.0 μg/m3 (42) 42.0
 
March 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) 3.0 μg/m3 (12) 38.0
 
March 15, 2019, 11 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) 4.0 μg/m3 (17) 38.0
 
March 15, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 8.0 μg/m3 (7) 6.5 μg/m3 (27) 38.0
 
March 15, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 2.0 μg/m3 (2) 3.6 μg/m3 (15) 38.0
 
March 15, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 5.0 μg/m3 (5) -1.3 μg/m3 (0) 38.0
 
March 15, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 3.0 μg/m3 (3) -0.4 μg/m3 (0) 35.0
 
March 15, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 0.0 μg/m3 (0) 4.4 μg/m3 (18) 35.0
 
March 15, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 2.0 μg/m3 (2) -2.2 μg/m3 (0) 33.0
 
March 15, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 0.0 μg/m3 (0) N/A 35.0
 
March 15, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A -3.8 μg/m3 (0) 33.0
 
March 15, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 0.0 μg/m3 (0) 3.0 μg/m3 (12) 33.0
 
March 15, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A 4.0 μg/m3 (4) 3.9 μg/m3 (16) 33.0
 
March 15, 2019, noon N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 3.0 μg/m3 (3) 1.0 μg/m3 (4) 34.0
 
March 15, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 3.0 μg/m3 (3) 1.6 μg/m3 (7) 35.0
 
March 15, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 0.0 μg/m3 (0) 3.4 μg/m3 (14) 35.0
 
March 15, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 2.0 μg/m3 (2) 3.5 μg/m3 (15) 35.0
 
March 15, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 2.0 μg/m3 (2) 7.0 μg/m3 (29) 35.0
 
March 15, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 0.0 μg/m3 (0) 9.1 μg/m3 (38) 38.0
 
March 15, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 8.0 μg/m3 (7) 7.8 μg/m3 (32) 37.0
 
March 15, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 6.0 μg/m3 (5) 9.1 μg/m3 (38) 38.0
 
March 15, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 7.0 μg/m3 (6) 10.4 μg/m3 (43) 43.0
 
March 15, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 10.0 μg/m3 (9) 8.0 μg/m3 (33) 38.0
 
March 15, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 11.0 μg/m3 (10) 7.9 μg/m3 (33) 38.0
 
March 15, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 10.0 μg/m3 (9) 8.6 μg/m3 (36) 38.0
 
March 15, 2019, midnight N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A 9.0 μg/m3 (8) 11.1 μg/m3 (46) 46.0
 
March 14, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A 6.0 μg/m3 (5) 10.2 μg/m3 (42) 42.0
 
March 14, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A 12.0 μg/m3 (11) 5.5 μg/m3 (23) 41.0
 
March 14, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 8.0 μg/m3 (7) 8.7 μg/m3 (36) 40.0
 
March 14, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A 11.0 μg/m3 (10) 10.9 μg/m3 (45) 45.0
 
March 14, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 5.0 μg/m3 (5) 6.5 μg/m3 (27) 38.0
 
March 14, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 1.0 μg/m3 (1) 7.8 μg/m3 (32) 38.0
 
March 14, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 6.0 μg/m3 (5) 6.2 μg/m3 (26) 35.0
 
March 14, 2019, 4 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) 12.8 μg/m3 (52) 52.0
 
March 14, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 6.0 μg/m3 (5) 12.4 μg/m3 (51) 51.0
 
March 14, 2019, 2 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) 7.0 μg/m3 (29) 29.0
 
March 14, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 10.0 μg/m3 (9) 6.3 μg/m3 (26) 28.0
 
March 14, 2019, noon N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A 7.0 μg/m3 (6) 10.2 μg/m3 (42) 42.0
 
March 14, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 11.0 μg/m3 (10) 11.7 μg/m3 (49) 49.0
 
March 14, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A 11.0 μg/m3 (10) 10.8 μg/m3 (45) 45.0
 
March 14, 2019, 9 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) 14.0 μg/m3 (54) 54.0
 
March 14, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 17.0 μg/m3 (15) 13.9 μg/m3 (54) 54.0
 
March 14, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A 15.0 μg/m3 (14) 13.1 μg/m3 (52) 52.0
 
March 14, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 11.0 μg/m3 (10) 11.3 μg/m3 (47) 47.0
 
March 14, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 7.0 μg/m3 (6) 7.3 μg/m3 (30) 34.0
 
March 14, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 11.0 μg/m3 (10) 8.9 μg/m3 (37) 37.0
 
March 14, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 8.0 μg/m3 (7) 9.3 μg/m3 (39) 39.0
 
March 14, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 7.0 μg/m3 (6) 10.6 μg/m3 (44) 44.0
 
March 14, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 13.0 μg/m3 (12) 11.6 μg/m3 (48) 48.0
 
March 14, 2019, midnight N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A 14.0 μg/m3 (13) 9.3 μg/m3 (39) 39.0
 
March 13, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 12.0 μg/m3 (11) 4.9 μg/m3 (20) 37.0
 
March 13, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 8.0 μg/m3 (7) 2.4 μg/m3 (10) 38.0
 
March 13, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A 4.0 μg/m3 (4) 2.8 μg/m3 (12) 38.0
 
March 13, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A 3.0 μg/m3 (3) 4.3 μg/m3 (18) 38.0
 
March 13, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A 4.0 μg/m3 (4) 6.2 μg/m3 (26) 37.0
 
March 13, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 3.0 μg/m3 (3) 1.2 μg/m3 (5) 35.0
 
March 13, 2019, 5 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) 5.6 μg/m3 (23) 34.0
 
March 13, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A -3.0 μg/m3 (0) 4.5 μg/m3 (19) 34.0
 
March 13, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 9.1 μg/m3 (38) 38.0
 
March 13, 2019, 2 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) 2.0 μg/m3 (8) 34.0
 
March 13, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 7.0 μg/m3 (6) 6.8 μg/m3 (28) 34.0
 
March 13, 2019, noon N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A 4.0 μg/m3 (4) 5.5 μg/m3 (23) 32.0
 
March 13, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 4.0 μg/m3 (4) 9.4 μg/m3 (39) 39.0
 
March 13, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A 3.0 μg/m3 (3) 3.8 μg/m3 (16) 31.0
 
March 13, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A 5.0 μg/m3 (5) 4.8 μg/m3 (20) 32.0
 
March 13, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A 5.0 μg/m3 (5) 4.3 μg/m3 (18) 34.0
 
March 13, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A -1.0 μg/m3 (0) 4.4 μg/m3 (18) 34.0
 
March 13, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A 0.0 μg/m3 (0) 6.4 μg/m3 (27) 35.0
 
March 13, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A 6.0 μg/m3 (5) 0.2 μg/m3 (1) 35.0