ID: 2433

AQSQID: 300710010

Site Name: Malta

Added: April 21, 2020, 6:24 p.m.

Updated: May 17, 2021, 10:50 p.m.

Location: Malta (Short Oil Rd), MT

Reporting: True, Located: True

Current AQI: 47.0

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
May 17, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 3.0 μg/m3 (3) 4.7 μg/m3 (20) 47.0
 
May 17, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 2.0 μg/m3 (2) 0.5 μg/m3 (3) 47.0
 
May 17, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 5.0 μg/m3 (5) 4.1 μg/m3 (18) 46.0
 
May 17, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 10.0 μg/m3 (10) -0.6 μg/m3 (0) 46.0
 
May 17, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 16.0 μg/m3 (15) 3.7 μg/m3 (16) 44.0
 
May 17, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 7.0 μg/m3 (7) 2.0 μg/m3 (9) 40.0
 
May 17, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 14.0 μg/m3 (13) 3.8 μg/m3 (16) 38.0
 
May 17, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 2.0 μg/m3 (2) 2.7 μg/m3 (12) 37.0
 
May 17, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 4.0 μg/m3 (4) 1.0 μg/m3 (5) 35.0
 
May 17, 2021, noon N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 3.0 μg/m3 (3) 3.0 μg/m3 (13) 34.0
 
May 17, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 3.0 μg/m3 (3) 6.2 μg/m3 (26) 34.0
 
May 17, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 5.0 μg/m3 (5) 2.0 μg/m3 (9) 36.0
 
May 17, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 10.0 μg/m3 (10) 3.7 μg/m3 (16) 36.0
 
May 17, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 0.0 μg/m3 (0) -1.5 μg/m3 (0) 35.0
 
May 17, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 1.0 μg/m3 (1) 4.9 μg/m3 (21) 35.0
 
May 17, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 5.0 μg/m3 (5) 2.5 μg/m3 (11) 36.0
 
May 17, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 12.0 μg/m3 (12) 2.7 μg/m3 (12) 38.0
 
May 17, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 11.0 μg/m3 (11) 3.2 μg/m3 (14) 38.0
 
May 17, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 8.0 μg/m3 (8) 4.7 μg/m3 (20) 42.0
 
May 17, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 10.0 μg/m3 (10) 0.8 μg/m3 (4) 46.0
 
May 17, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 10.0 μg/m3 (10) 4.9 μg/m3 (21) 44.0
 
May 17, 2021, midnight N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 10.0 μg/m3 (10) 1.8 μg/m3 (8) 44.0
 
May 16, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 10.0 μg/m3 (10) -4.9 μg/m3 (0) 47.0
 
May 16, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 6.0 μg/m3 (6) -0.5 μg/m3 (0) 47.0
 
May 16, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 2.0 μg/m3 (2) 6.6 μg/m3 (28) 47.0
 
May 16, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 0.0 μg/m3 (0) 2.2 μg/m3 (10) 46.0
 
May 16, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 3.0 μg/m3 (3) 1.5 μg/m3 (7) 46.0
 
May 16, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 3.0 μg/m3 (3) 3.0 μg/m3 (13) 47.0
 
May 16, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 3.0 μg/m3 (3) 3.6 μg/m3 (16) 46.0
 
May 16, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 1.0 μg/m3 (1) 5.1 μg/m3 (22) 43.0
 
May 16, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 4.0 μg/m3 (4) 3.6 μg/m3 (16) 37.0
 
May 16, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 1.0 μg/m3 (1) 2.8 μg/m3 (12) 30.0
 
May 16, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 0.0 μg/m3 (0) 0.6 μg/m3 (3) 27.0
 
May 16, 2021, noon N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 3.0 μg/m3 (3) 2.5 μg/m3 (11) 29.0
 
May 16, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 5.0 μg/m3 (5) 5.5 μg/m3 (23) 34.0
 
May 16, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 6.0 μg/m3 (6) -0.9 μg/m3 (0) 36.0
 
May 16, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 3.0 μg/m3 (3) 6.4 μg/m3 (27) 38.0
 
May 16, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 7.0 μg/m3 (7) 6.1 μg/m3 (26) 38.0
 
May 16, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 4.0 μg/m3 (4) 10.8 μg/m3 (46) 46.0
 
May 16, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 9.0 μg/m3 (9) 2.7 μg/m3 (12) 40.0
 
May 16, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 4.0 μg/m3 (4) 2.8 μg/m3 (12) 41.0
 
May 16, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 6.0 μg/m3 (6) 4.4 μg/m3 (19) 41.0
 
May 16, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 9.0 μg/m3 (9) 5.7 μg/m3 (24) 42.0
 
May 16, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 9.0 μg/m3 (9) 4.9 μg/m3 (21) 42.0
 
May 16, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 11.0 μg/m3 (11) 2.7 μg/m3 (12) 46.0
 
May 16, 2021, midnight N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 0.0 μg/m3 (0) 6.8 μg/m3 (29) 49.0
 
May 15, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 0.0 μg/m3 (0) 6.5 μg/m3 (28) 49.0
 
May 15, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 0.0 μg/m3 (0) -1.2 μg/m3 (0) 49.0
 
May 15, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 4.0 μg/m3 (4) 0.9 μg/m3 (4) 49.0
 
May 15, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 4.0 μg/m3 (4) 4.1 μg/m3 (18) 49.0
 
May 15, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A 1.0 μg/m3 (1) -1.4 μg/m3 (0) 48.0
 
May 15, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A 6.0 μg/m3 (6) 0.4 μg/m3 (2) 48.0
 
May 15, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 5.0 μg/m3 (5) 3.4 μg/m3 (15) 45.0
 
May 15, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 2.0 μg/m3 (2) 10.7 μg/m3 (45) 45.0
 
May 15, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 1.0 μg/m3 (1) 10.6 μg/m3 (45) 45.0
 
May 15, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 0.0 μg/m3 (0) 1.5 μg/m3 (7) 25.0
 
May 15, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 0.0 μg/m3 (0) 3.7 μg/m3 (16) 24.0
 
May 15, 2021, noon N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 6.0 μg/m3 (6) 2.9 μg/m3 (13) 24.0
 
May 15, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 7.0 μg/m3 (7) 3.3 μg/m3 (14) 26.0
 
May 15, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 5.0 μg/m3 (5) 4.0 μg/m3 (17) 27.0
 
May 15, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 9.0 μg/m3 (9) 6.3 μg/m3 (27) 29.0
 
May 15, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 5.0 μg/m3 (5) 8.8 μg/m3 (37) 37.0
 
May 15, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A -4.0 μg/m3 (0) 4.7 μg/m3 (20) 42.0
 
May 15, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 3.0 μg/m3 (3) 6.2 μg/m3 (26) 41.0
 
May 15, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 5.0 μg/m3 (5) 1.1 μg/m3 (5) 44.0
 
May 15, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 4.0 μg/m3 (4) 2.6 μg/m3 (11) 41.0
 
May 15, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 7.0 μg/m3 (7) 1.5 μg/m3 (7) 40.0
 
May 15, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 7.0 μg/m3 (7) 1.8 μg/m3 (8) 41.0
 
May 15, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 4.0 μg/m3 (4) 2.8 μg/m3 (12) 45.0
 
May 15, 2021, midnight N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 5.0 μg/m3 (5) 3.7 μg/m3 (16) 46.0
 
May 14, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 2.0 μg/m3 (2) -1.3 μg/m3 (0) 45.0
 
May 14, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 4.0 μg/m3 (4) -0.7 μg/m3 (0) 44.0
 
May 14, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 7.0 μg/m3 (7) 0.2 μg/m3 (1) 44.0
 
May 14, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 0.0 μg/m3 (0) 3.8 μg/m3 (16) 43.0
 
May 14, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 3.0 μg/m3 (3) 0.0 μg/m3 (0) 42.0
 
May 14, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 7.0 μg/m3 (7) 1.2 μg/m3 (5) 42.0
 
May 14, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 5.0 μg/m3 (5) 1.0 μg/m3 (5) 42.0
 
May 14, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 6.0 μg/m3 (6) 2.0 μg/m3 (9) 40.0
 
May 14, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 3.0 μg/m3 (3) -3.2 μg/m3 (0) 38.0
 
May 14, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A -1.0 μg/m3 (0) 3.7 μg/m3 (16) 37.0
 
May 14, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 3.0 μg/m3 (3) 2.4 μg/m3 (10) 30.0
 
May 14, 2021, noon N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 0.0 μg/m3 (0) 1.8 μg/m3 (8) 22.0
 
May 14, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 2.0 μg/m3 (2) -0.5 μg/m3 (0) 19.0
 
May 14, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 2.0 μg/m3 (2) 4.6 μg/m3 (20) 22.0
 
May 14, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 5.0 μg/m3 (5) 5.0 μg/m3 (21) 25.0
 
May 14, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 6.0 μg/m3 (6) 8.2 μg/m3 (35) 35.0
 
May 14, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 9.0 μg/m3 (9) 8.1 μg/m3 (34) 34.0
 
May 14, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 1.0 μg/m3 (1) 1.2 μg/m3 (5) 31.0
 
May 14, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 2.0 μg/m3 (2) 2.3 μg/m3 (10) 31.0
 
May 14, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 6.0 μg/m3 (6) 4.3 μg/m3 (18) 34.0
 
May 14, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 5.0 μg/m3 (5) 3.1 μg/m3 (13) 35.0
 
May 14, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 5.0 μg/m3 (5) 6.3 μg/m3 (27) 31.0
 
May 14, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 8.0 μg/m3 (8) 5.1 μg/m3 (22) 36.0
 
May 14, 2021, midnight N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 6.0 μg/m3 (6) 2.0 μg/m3 (9) 42.0
 
May 13, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 8.0 μg/m3 (8) 5.5 μg/m3 (23) 42.0
 
May 13, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 6.0 μg/m3 (6) 2.0 μg/m3 (9) 41.0
 
May 13, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 4.0 μg/m3 (4) 1.3 μg/m3 (6) 43.0
 
May 13, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 1.0 μg/m3 (1) 4.1 μg/m3 (18) 44.0
 
May 13, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 2.0 μg/m3 (2) 2.3 μg/m3 (10) 42.0
 
May 13, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 3.0 μg/m3 (3) -3.3 μg/m3 (0) 39.0
 
May 13, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 11.0 μg/m3 (11) 3.1 μg/m3 (13) 36.0
 
May 13, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 25.0 μg/m3 (24) 12.3 μg/m3 (52) 52.0
 
May 13, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 87.0 μg/m3 (67) 11.6 μg/m3 (49) 67.0
 
May 13, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A 44.0 μg/m3 (41) 0.7 μg/m3 (3) 41.0
 
May 13, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 0.3 μg/m3 (2) 20.0
 
May 13, 2021, noon N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 1.0 μg/m3 (1) 2.8 μg/m3 (12) 21.0
 
May 13, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 23.0 μg/m3 (22) 6.2 μg/m3 (26) 26.0
 
May 13, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 1.0 μg/m3 (1) 2.6 μg/m3 (11) 30.0
 
May 13, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 1.1 μg/m3 (5) 29.0
 
May 13, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 7.0 μg/m3 (7) 2.5 μg/m3 (11) 29.0
 
May 13, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 9.0 μg/m3 (9) N/A 31.0
 
May 13, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 5.0 μg/m3 (5) 1.7 μg/m3 (8) 32.0
 
May 13, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 4.0 μg/m3 (4) 0.2 μg/m3 (1) 35.0
 
May 13, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 3.0 μg/m3 (3) 0.6 μg/m3 (3) 33.0
 
May 13, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 4.0 μg/m3 (4) 4.0 μg/m3 (17) 31.0
 
May 13, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 6.0 μg/m3 (6) 5.7 μg/m3 (24) 34.0
 
May 13, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 5.0 μg/m3 (5) 2.7 μg/m3 (12) 39.0
 
May 13, 2021, midnight N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 2.0 μg/m3 (2) 5.3 μg/m3 (23) 42.0
 
May 12, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 20.0 μg/m3 (19) 0.8 μg/m3 (4) 42.0
 
May 12, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 4.0 μg/m3 (4) 1.8 μg/m3 (8) 43.0
 
May 12, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 3.0 μg/m3 (3) 2.2 μg/m3 (10) 43.0
 
May 12, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 2.0 μg/m3 (2) 1.8 μg/m3 (8) 42.0
 
May 12, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 3.0 μg/m3 (3) 1.3 μg/m3 (6) 41.0
 
May 12, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 3.0 μg/m3 (3) 3.5 μg/m3 (15) 39.0
 
May 12, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 4.0 μg/m3 (4) 0.4 μg/m3 (2) 36.0
 
May 12, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 7.0 μg/m3 (7) 2.0 μg/m3 (9) 31.0
 
May 12, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 12.0 μg/m3 (12) 8.8 μg/m3 (37) 37.0
 
May 12, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 2.0 μg/m3 (2) 5.6 μg/m3 (24) 25.0
 
May 12, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 4.0 μg/m3 (4) 0.2 μg/m3 (1) 23.0
 
May 12, 2021, noon N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 1.0 μg/m3 (1) 4.4 μg/m3 (19) 24.0
 
May 12, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 1.0 μg/m3 (1) 1.3 μg/m3 (6) 25.0
 
May 12, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 4.0 μg/m3 (4) 3.7 μg/m3 (16) 25.0
 
May 12, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 0.0 μg/m3 (0) 3.6 μg/m3 (16) 26.0
 
May 12, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 2.0 μg/m3 (2) 2.9 μg/m3 (13) 26.0
 
May 12, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A -2.0 μg/m3 (0) 0.1 μg/m3 (1) 27.0
 
May 12, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 4.0 μg/m3 (4) 0.3 μg/m3 (2) 29.0
 
May 12, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 7.0 μg/m3 (7) 4.5 μg/m3 (19) 28.0
 
May 12, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 7.0 μg/m3 (7) 3.2 μg/m3 (14) 31.0
 
May 12, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 7.0 μg/m3 (7) 0.3 μg/m3 (2) 34.0
 
May 12, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 7.0 μg/m3 (7) 3.5 μg/m3 (15) 32.0
 
May 12, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 8.0 μg/m3 (8) 4.7 μg/m3 (20) 36.0
 
May 12, 2021, midnight N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 7.0 μg/m3 (7) 4.2 μg/m3 (18) 41.0
 
May 11, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 3.0 μg/m3 (3) 3.3 μg/m3 (14) 42.0
 
May 11, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 33.0 μg/m3 (31) -0.8 μg/m3 (0) 42.0
 
May 11, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 49.0 μg/m3 (46) 1.6 μg/m3 (7) 46.0
 
May 11, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 45.0 μg/m3 (42) 2.6 μg/m3 (11) 44.0
 
May 11, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 27.0 μg/m3 (25) 4.4 μg/m3 (19) 44.0
 
May 11, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 6.0 μg/m3 (6) 2.0 μg/m3 (9) 44.0
 
May 11, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 38.0 μg/m3 (36) 4.5 μg/m3 (19) 45.0
 
May 11, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 14.0 μg/m3 (13) 2.8 μg/m3 (12) 44.0
 
May 11, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 18.0 μg/m3 (17) 1.8 μg/m3 (8) 36.0
 
May 11, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 4.0 μg/m3 (4) 9.9 μg/m3 (42) 42.0
 
May 11, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 8.0 μg/m3 (8) 6.4 μg/m3 (27) 31.0
 
May 11, 2021, noon N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 14.0 μg/m3 (13) 5.5 μg/m3 (23) 33.0
 
May 11, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 13.0 μg/m3 (13) 8.5 μg/m3 (36) 36.0
 
May 11, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 13.0 μg/m3 (13) 6.7 μg/m3 (28) 37.0
 
May 11, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 14.0 μg/m3 (13) 5.0 μg/m3 (21) 35.0
 
May 11, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 14.0 μg/m3 (13) 16.3 μg/m3 (60) 60.0
 
May 11, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 25.0 μg/m3 (24) 17.0 μg/m3 (62) 62.0
 
May 11, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 11.0 μg/m3 (11) 8.0 μg/m3 (34) 39.0
 
May 11, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 15.0 μg/m3 (14) 7.5 μg/m3 (32) 38.0
 
May 11, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 13.0 μg/m3 (13) 8.4 μg/m3 (36) 38.0
 
May 11, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 15.0 μg/m3 (14) 8.1 μg/m3 (34) 38.0
 
May 11, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 15.0 μg/m3 (14) 7.2 μg/m3 (31) 39.0
 
May 11, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 10.0 μg/m3 (10) 9.6 μg/m3 (40) 44.0
 
May 11, 2021, midnight N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 13.0 μg/m3 (13) 8.7 μg/m3 (37) 46.0
 
May 10, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 3.0 μg/m3 (3) 9.1 μg/m3 (38) 46.0
 
May 10, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 10.0 μg/m3 (10) 3.7 μg/m3 (16) 45.0