ID: 2433

AQSQID: 300710010

Site Name: Malta

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

Updated: March 1, 2021, 7:32 p.m.

Location: Malta (Short Oil Rd), MT

Reporting: True, Located: True

Current AQI: 20.0

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
March 1, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 4.7 μg/m3 (20) 20.0
 
March 1, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) 1.8 μg/m3 (8) 8.0
 
March 1, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 6.1 μg/m3 (26) 26.0
 
March 1, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) 3.4 μg/m3 (15) 15.0
 
March 1, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A -2.0 μg/m3 (0) 0.0 μg/m3 (0) 0.0
March 1, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 3.0 μg/m3 (3) -0.9 μg/m3 (0) 21.0
 
March 1, 2021, noon N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 2.0 μg/m3 (2) 4.0 μg/m3 (17) 22.0
 
March 1, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 3.0 μg/m3 (3) 2.4 μg/m3 (10) 22.0
 
March 1, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 0.0 μg/m3 (0) 2.5 μg/m3 (11) 23.0
 
March 1, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 2.0 μg/m3 (2) 1.9 μg/m3 (8) 24.0
 
March 1, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 2.0 μg/m3 (2) -1.7 μg/m3 (0) 23.0
 
March 1, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A -4.0 μg/m3 (0) N/A 25.0
 
March 1, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 6.0 μg/m3 (6) 3.5 μg/m3 (15) 29.0
 
March 1, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 4.0 μg/m3 (4) 0.9 μg/m3 (4) 34.0
 
March 1, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 6.0 μg/m3 (6) 1.6 μg/m3 (7) 35.0
 
March 1, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 6.0 μg/m3 (6) -0.6 μg/m3 (0) 32.0
 
March 1, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 4.0 μg/m3 (4) 3.2 μg/m3 (14) 34.0
 
March 1, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 9.0 μg/m3 (9) 7.1 μg/m3 (30) 33.0
 
March 1, 2021, midnight N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 8.0 μg/m3 (8) 0.9 μg/m3 (4) 38.0
 
Feb. 28, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 11.0 μg/m3 (11) -0.2 μg/m3 (0) 39.0
 
Feb. 28, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 7.0 μg/m3 (7) 3.3 μg/m3 (14) 39.0
 
Feb. 28, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 7.0 μg/m3 (7) -0.9 μg/m3 (0) 39.0
 
Feb. 28, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 6.0 μg/m3 (6) 1.3 μg/m3 (6) 39.0
 
Feb. 28, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 7.0 μg/m3 (7) 5.7 μg/m3 (24) 38.0
 
Feb. 28, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 1.0 μg/m3 (1) 4.5 μg/m3 (19) 37.0
 
Feb. 28, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 3.0 μg/m3 (3) 5.9 μg/m3 (25) 37.0
 
Feb. 28, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 0.3 μg/m3 (2) 33.0
 
Feb. 28, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 2.0 μg/m3 (2) N/A 27.0
 
Feb. 28, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A -2.0 μg/m3 (0) 2.6 μg/m3 (11) 24.0
 
Feb. 28, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 5.0 μg/m3 (5) 1.3 μg/m3 (6) 23.0
 
Feb. 28, 2021, noon N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 5.0 μg/m3 (5) 4.6 μg/m3 (20) 23.0
 
Feb. 28, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 3.0 μg/m3 (3) 2.9 μg/m3 (13) 24.0
 
Feb. 28, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 3.0 μg/m3 (3) 4.4 μg/m3 (19) 24.0
 
Feb. 28, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 4.0 μg/m3 (4) 3.8 μg/m3 (16) 23.0
 
Feb. 28, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A 8.0 μg/m3 (8) 1.9 μg/m3 (8) 20.0
 
Feb. 28, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 9.0 μg/m3 (9) -0.4 μg/m3 (0) 19.0
 
Feb. 28, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 4.0 μg/m3 (4) -0.1 μg/m3 (0) 19.0
 
Feb. 28, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 5.0 μg/m3 (5) 6.6 μg/m3 (28) 28.0
 
Feb. 28, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 6.0 μg/m3 (6) 0.4 μg/m3 (2) 21.0
 
Feb. 28, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A 4.0 μg/m3 (4) 3.0 μg/m3 (13) 23.0
 
Feb. 28, 2021, 2 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) 2.6 μg/m3 (11) 25.0
 
Feb. 28, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 7.0 μg/m3 (7) 5.7 μg/m3 (24) 25.0
 
Feb. 28, 2021, midnight N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 9.0 μg/m3 (9) 6.5 μg/m3 (28) 28.0
 
Feb. 27, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 9.0 μg/m3 (9) 13.2 μg/m3 (54) 54.0
 
Feb. 27, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 5.0 μg/m3 (5) 5.2 μg/m3 (22) 28.0
 
Feb. 27, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 4.0 μg/m3 (4) 5.4 μg/m3 (23) 29.0
 
Feb. 27, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 3.0 μg/m3 (3) -1.7 μg/m3 (0) 27.0
 
Feb. 27, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 30.0 μg/m3 (28) 6.3 μg/m3 (27) 28.0
 
Feb. 27, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 27.0 μg/m3 (25) 8.0 μg/m3 (34) 34.0
 
Feb. 27, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 16.0 μg/m3 (15) 8.6 μg/m3 (36) 36.0
 
Feb. 27, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 16.0 μg/m3 (15) 0.7 μg/m3 (3) 25.0
 
Feb. 27, 2021, 3 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) 9.4 μg/m3 (40) 40.0
 
Feb. 27, 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) 3.7 μg/m3 (16) 24.0
 
Feb. 27, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 5.0 μg/m3 (5) 4.5 μg/m3 (19) 25.0
 
Feb. 27, 2021, noon N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 4.0 μg/m3 (4) 2.8 μg/m3 (12) 25.0
 
Feb. 27, 2021, 11 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) 8.8 μg/m3 (37) 37.0
 
Feb. 27, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 9.0 μg/m3 (9) 1.5 μg/m3 (7) 26.0
 
Feb. 27, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 6.0 μg/m3 (6) 7.0 μg/m3 (30) 30.0
 
Feb. 27, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 3.0 μg/m3 (3) 4.2 μg/m3 (18) 27.0
 
Feb. 27, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A -1.0 μg/m3 (0) 0.6 μg/m3 (3) 29.0
 
Feb. 27, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 8.0 μg/m3 (8) 7.9 μg/m3 (33) 33.0
 
Feb. 27, 2021, 5 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) 4.8 μg/m3 (20) 31.0
 
Feb. 27, 2021, 4 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) 3.4 μg/m3 (15) 34.0
 
Feb. 27, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 8.0 μg/m3 (8) 4.3 μg/m3 (18) 33.0
 
Feb. 27, 2021, 2 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) 5.6 μg/m3 (24) 31.0
 
Feb. 27, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 10.0 μg/m3 (10) 4.0 μg/m3 (17) 31.0
 
Feb. 27, 2021, midnight N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 9.0 μg/m3 (9) -0.5 μg/m3 (0) 35.0
 
Feb. 26, 2021, 11 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) -1.3 μg/m3 (0) 36.0
 
Feb. 26, 2021, 10 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) 1.3 μg/m3 (6) 38.0
 
Feb. 26, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 1.0 μg/m3 (1) -0.2 μg/m3 (0) 37.0
 
Feb. 26, 2021, 8 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) 4.2 μg/m3 (18) 37.0
 
Feb. 26, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 1.0 μg/m3 (1) 1.0 μg/m3 (5) 37.0
 
Feb. 26, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A -3.0 μg/m3 (0) -0.7 μg/m3 (0) 35.0
 
Feb. 26, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 3.0 μg/m3 (3) 3.6 μg/m3 (16) 32.0
 
Feb. 26, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A -2.0 μg/m3 (0) -3.4 μg/m3 (0) 31.0
 
Feb. 26, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 0.0 μg/m3 (0) -3.1 μg/m3 (0) 30.0
 
Feb. 26, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 1.0 μg/m3 (1) 1.4 μg/m3 (6) 29.0
 
Feb. 26, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 0.0 μg/m3 (0) -3.0 μg/m3 (0) 29.0
 
Feb. 26, 2021, noon N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 5.0 μg/m3 (5) 0.0 μg/m3 (0) 29.0
 
Feb. 26, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 3.0 μg/m3 (3) 0.9 μg/m3 (4) 29.0
 
Feb. 26, 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 (0) -1.3 μg/m3 (0) 30.0
 
Feb. 26, 2021, 9 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) 0.1 μg/m3 (1) 31.0
 
Feb. 26, 2021, 8 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) -3.1 μg/m3 (0) 31.0
 
Feb. 26, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 2.0 μg/m3 (2) 0.7 μg/m3 (3) 33.0
 
Feb. 26, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 1.0 μg/m3 (1) 3.0 μg/m3 (13) 36.0
 
Feb. 26, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 2.0 μg/m3 (2) -1.6 μg/m3 (0) 38.0
 
Feb. 26, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 2.0 μg/m3 (2) 1.2 μg/m3 (5) 37.0
 
Feb. 26, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 3.0 μg/m3 (3) 0.0 μg/m3 (0) 37.0
 
Feb. 26, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 7.0 μg/m3 (7) 0.5 μg/m3 (3) 37.0
 
Feb. 26, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 15.0 μg/m3 (14) 2.5 μg/m3 (11) 37.0
 
Feb. 26, 2021, midnight N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 8.0 μg/m3 (8) 3.1 μg/m3 (13) 38.0
 
Feb. 25, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 2.0 μg/m3 (2) -4.6 μg/m3 (0) 39.0
 
Feb. 25, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 12.0 μg/m3 (12) 0.5 μg/m3 (3) 41.0
 
Feb. 25, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 11.0 μg/m3 (11) 0.2 μg/m3 (1) 41.0
 
Feb. 25, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 0.0 μg/m3 (0) -1.0 μg/m3 (0) 39.0
 
Feb. 25, 2021, 7 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) -2.7 μg/m3 (0) 36.0
 
Feb. 25, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 4.0 μg/m3 (4) 1.4 μg/m3 (6) 33.0
 
Feb. 25, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 3.0 μg/m3 (3) -2.7 μg/m3 (0) 34.0
 
Feb. 25, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A -0.7 μg/m3 (0) 33.0
 
Feb. 25, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A -1.0 μg/m3 (0) N/A 33.0
 
Feb. 25, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A -1.0 μg/m3 (0) -4.0 μg/m3 (0) 31.0
 
Feb. 25, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A -1.0 μg/m3 (0) -4.2 μg/m3 (0) 31.0
 
Feb. 25, 2021, noon N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A -1.0 μg/m3 (0) 0.7 μg/m3 (3) 29.0
 
Feb. 25, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 0.0 μg/m3 (0) -1.4 μg/m3 (0) 31.0
 
Feb. 25, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A -2.0 μg/m3 (0) -1.3 μg/m3 (0) 30.0
 
Feb. 25, 2021, 9 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) 3.1 μg/m3 (13) 30.0
 
Feb. 25, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 15.0 μg/m3 (14) 10.0 μg/m3 (42) 42.0
 
Feb. 25, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 17.0 μg/m3 (16) 13.9 μg/m3 (55) 55.0
 
Feb. 25, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 0.0 μg/m3 (0) 0.6 μg/m3 (3) 31.0
 
Feb. 25, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 3.0 μg/m3 (3) 2.0 μg/m3 (9) 30.0
 
Feb. 25, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 1.0 μg/m3 (1) 0.6 μg/m3 (3) 29.0
 
Feb. 25, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 3.0 μg/m3 (3) 3.4 μg/m3 (15) 31.0
 
Feb. 25, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 3.0 μg/m3 (3) 2.5 μg/m3 (11) 31.0
 
Feb. 25, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 11.0 μg/m3 (11) 5.7 μg/m3 (24) 30.0
 
Feb. 25, 2021, midnight N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 10.0 μg/m3 (10) -0.2 μg/m3 (0) 35.0
 
Feb. 24, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 11.0 μg/m3 (11) N/A 37.0
 
Feb. 24, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 5.0 μg/m3 (5) 5.3 μg/m3 (23) 37.0
 
Feb. 24, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 0.0 μg/m3 (0) 6.0 μg/m3 (25) 36.0
 
Feb. 24, 2021, 8 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) 5.0 μg/m3 (21) 35.0
 
Feb. 24, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 6.0 μg/m3 (6) 7.2 μg/m3 (31) 35.0
 
Feb. 24, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 3.0 μg/m3 (3) 6.5 μg/m3 (28) 35.0
 
Feb. 24, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 4.0 μg/m3 (4) 2.0 μg/m3 (9) 33.0
 
Feb. 24, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 5.0 μg/m3 (5) 7.9 μg/m3 (33) 33.0
 
Feb. 24, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 2.0 μg/m3 (2) 5.7 μg/m3 (24) 31.0
 
Feb. 24, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 5.0 μg/m3 (5) 4.4 μg/m3 (19) 32.0
 
Feb. 24, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 4.0 μg/m3 (4) 3.2 μg/m3 (14) 33.0
 
Feb. 24, 2021, noon N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 2.0 μg/m3 (2) 3.8 μg/m3 (16) 33.0
 
Feb. 24, 2021, 11 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) 1.1 μg/m3 (5) 30.0
 
Feb. 24, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 1.0 μg/m3 (1) 1.9 μg/m3 (8) 28.0
 
Feb. 24, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 3.0 μg/m3 (3) -0.1 μg/m3 (0) 29.0
 
Feb. 24, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 0.0 μg/m3 (0) 0.2 μg/m3 (1) 30.0
 
Feb. 24, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 1.1 μg/m3 (5) 28.0
 
Feb. 24, 2021, 6 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) 2.6 μg/m3 (11) 31.0
 
Feb. 24, 2021, 5 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) 1.3 μg/m3 (6) 34.0
 
Feb. 24, 2021, 4 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) 3.9 μg/m3 (17) 36.0
 
Feb. 24, 2021, 3 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
 
Feb. 24, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 3.0 μg/m3 (3) 0.7 μg/m3 (3) 37.0
 
Feb. 24, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 2.0 μg/m3 (2) 6.4 μg/m3 (27) 38.0
 
Feb. 24, 2021, midnight N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 8.0 μg/m3 (8) 6.1 μg/m3 (26) 37.0
 
Feb. 23, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 7.0 μg/m3 (7) 6.7 μg/m3 (28) 37.0
 
Feb. 23, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 1.0 μg/m3 (1) 1.9 μg/m3 (8) 38.0
 
Feb. 23, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 4.0 μg/m3 (4) 5.6 μg/m3 (24) 40.0
 
Feb. 23, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 4.0 μg/m3 (4) 3.2 μg/m3 (14) 40.0
 
Feb. 23, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 2.0 μg/m3 (2) -0.2 μg/m3 (0) 40.0
 
Feb. 23, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 0.0 μg/m3 (0) 1.3 μg/m3 (6) 38.0
 
Feb. 23, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 3.0 μg/m3 (3) 4.3 μg/m3 (18) 37.0
 
Feb. 23, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 10.0 μg/m3 (10) 1.4 μg/m3 (6) 38.0
 
Feb. 23, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A 10.0 μg/m3 (10) -1.1 μg/m3 (0) 37.0
 
Feb. 23, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 7.0 μg/m3 (7) 5.0 μg/m3 (21) 34.0
 
Feb. 23, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 2.0 μg/m3 (2) 4.2 μg/m3 (18) 34.0
 
Feb. 23, 2021, noon N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 2.0 μg/m3 (2) -0.5 μg/m3 (0) 36.0
 
Feb. 23, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 1.0 μg/m3 (1) 0.3 μg/m3 (2) 34.0
 
Feb. 23, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 4.0 μg/m3 (4) -0.7 μg/m3 (0) 30.0
 
Feb. 23, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 8.0 μg/m3 (8) 3.7 μg/m3 (16) 27.0
 
Feb. 23, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 3.0 μg/m3 (3) -0.5 μg/m3 (0) 25.0
 
Feb. 23, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 6.0 μg/m3 (6) 1.9 μg/m3 (8) 26.0
 
Feb. 23, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 0.0 μg/m3 (0) 3.0 μg/m3 (13) 27.0
 
Feb. 23, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 0.0 μg/m3 (0) N/A 27.0
 
Feb. 23, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 0.0 μg/m3 (0) -2.2 μg/m3 (0) 30.0
 
Feb. 23, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 4.0 μg/m3 (4) 1.1 μg/m3 (5) 32.0
 
Feb. 23, 2021, 2 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) 1.8 μg/m3 (8) 34.0
 
Feb. 23, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 4.0 μg/m3 (4) N/A 34.0
 
Feb. 23, 2021, midnight N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 0.0 μg/m3 (0) 3.5 μg/m3 (15) 39.0
 
Feb. 22, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 1.0 μg/m3 (1) N/A 38.0
 
Feb. 22, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A -2.0 μg/m3 (0) 0.0 μg/m3 (0) 40.0
 
Feb. 22, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 1.0 μg/m3 (1) 2.0 μg/m3 (9) 40.0
 
Feb. 22, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 3.0 μg/m3 (3) 1.2 μg/m3 (5) 40.0
 
Feb. 22, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 5.0 μg/m3 (5) 3.6 μg/m3 (16) 40.0