ID: 1649

AQSQID: 000091101

Site Name: Elk Island

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

Updated: March 1, 2021, 3:32 p.m.

Location: Improvement Dist No. 13 (Rng Rd 203 Rng Rd), CC

Reporting: True, Located: True

Current AQI: 43.0

Improvement Dist No. 13 (Rng Rd 203 Rng Rd) CC, CA: 53.6825, -112.8686

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 1, 2021, noon N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 10.1 μg/m3 (43) 43.0
 
March 1, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 10.1 μg/m3 (43) 43.0
 
March 1, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 9.9 μg/m3 (42) 42.0
 
March 1, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 9.3 μg/m3 (39) 39.0
 
March 1, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 9.3 μg/m3 (39) 39.0
 
March 1, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 8.9 μg/m3 (38) 38.0
 
March 1, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 8.5 μg/m3 (36) 38.0
 
March 1, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 7.9 μg/m3 (33) 38.0
 
March 1, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 8.0 μg/m3 (34) 38.0
 
March 1, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 8.0 μg/m3 (34) 37.0
 
March 1, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 8.3 μg/m3 (35) 36.0
 
March 1, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 10.7 μg/m3 (45) 45.0
 
March 1, 2021, midnight N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 12.0 μg/m3 (50) 50.0
 
Feb. 28, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 11.2 μg/m3 (47) 47.0
 
Feb. 28, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 11.3 μg/m3 (48) 48.0
 
Feb. 28, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 10.7 μg/m3 (45) 45.0
 
Feb. 28, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 10.1 μg/m3 (43) 43.0
 
Feb. 28, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 10.7 μg/m3 (45) 45.0
 
Feb. 28, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 12.0 μg/m3 (50) 50.0
 
Feb. 28, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 12.7 μg/m3 (53) 53.0
 
Feb. 28, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 10.8 μg/m3 (46) 46.0
 
Feb. 28, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 10.9 μg/m3 (46) 46.0
 
Feb. 28, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 10.7 μg/m3 (45) 45.0
 
Feb. 28, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 9.9 μg/m3 (42) 42.0
 
Feb. 28, 2021, noon N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 9.4 μg/m3 (40) 40.0
 
Feb. 28, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 8.8 μg/m3 (37) 37.0
 
Feb. 28, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 8.0 μg/m3 (34) 34.0
 
Feb. 28, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 6.0 μg/m3 (25) 32.0
 
Feb. 28, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 5.9 μg/m3 (25) 36.0
 
Feb. 28, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 6.4 μg/m3 (27) 35.0
 
Feb. 28, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 6.8 μg/m3 (29) 34.0
 
Feb. 28, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 7.1 μg/m3 (30) 33.0
 
Feb. 28, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 6.0 μg/m3 (25) 33.0
 
Feb. 28, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 6.0 μg/m3 (25) 33.0
 
Feb. 28, 2021, midnight N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 4.7 μg/m3 (20) 36.0
 
Feb. 27, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 3.9 μg/m3 (17) 39.0
 
Feb. 27, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 4.7 μg/m3 (20) 38.0
 
Feb. 27, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 7.0 μg/m3 (30) 37.0
 
Feb. 27, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 9.3 μg/m3 (39) 39.0
 
Feb. 27, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 9.3 μg/m3 (39) 39.0
 
Feb. 27, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 10.6 μg/m3 (45) 45.0
 
Feb. 27, 2021, noon N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A 5.4 μg/m3 (23) 23.0
 
Feb. 27, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A N/A 5.3 μg/m3 (23) 23.0
 
Feb. 27, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 5.5 μg/m3 (23) 23.0
 
Feb. 27, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 5.1 μg/m3 (22) 25.0
 
Feb. 27, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 4.7 μg/m3 (20) 25.0
 
Feb. 27, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 4.7 μg/m3 (20) 25.0
 
Feb. 27, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 4.4 μg/m3 (19) 25.0
 
Feb. 27, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 4.0 μg/m3 (17) 25.0
 
Feb. 27, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 3.6 μg/m3 (16) 24.0
 
Feb. 27, 2021, midnight N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 3.6 μg/m3 (16) 28.0
 
Feb. 26, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 3.6 μg/m3 (16) 29.0
 
Feb. 26, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 3.4 μg/m3 (15) 29.0
 
Feb. 26, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 3.4 μg/m3 (15) 29.0
 
Feb. 26, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 3.4 μg/m3 (15) 29.0
 
Feb. 26, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 3.5 μg/m3 (15) 28.0
 
Feb. 26, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A N/A 28.0
 
Feb. 26, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A N/A 27.0
 
Feb. 26, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A N/A 27.0
 
Feb. 26, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A N/A 26.0
 
Feb. 26, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A N/A 25.0
 
Feb. 26, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A N/A 25.0
 
Feb. 26, 2021, noon N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A N/A 25.0
 
Feb. 26, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A N/A 25.0
 
Feb. 26, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A N/A 23.0
 
Feb. 25, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A N/A 42.0
 
Feb. 25, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A N/A 42.0
 
Feb. 25, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A N/A 40.0
 
Feb. 25, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A N/A 37.0
 
Feb. 25, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A N/A 35.0
 
Feb. 25, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 4.0 μg/m3 (17) 35.0
 
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 3.5 μg/m3 (15) 33.0
 
Feb. 25, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 3.4 μg/m3 (15) 30.0
 
Feb. 25, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 2.5 μg/m3 (11) 33.0
 
Feb. 25, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 1.9 μg/m3 (8) 37.0
 
Feb. 25, 2021, noon N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 2.3 μg/m3 (10) 37.0
 
Feb. 25, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 3.0 μg/m3 (13) 37.0
 
Feb. 25, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 2.8 μg/m3 (12) 36.0
 
Feb. 25, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 2.6 μg/m3 (11) 36.0
 
Feb. 25, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 3.0 μg/m3 (13) 32.0
 
Feb. 25, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 3.2 μg/m3 (14) 32.0
 
Feb. 25, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 3.2 μg/m3 (14) 33.0
 
Feb. 25, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 2.7 μg/m3 (12) 32.0
 
Feb. 25, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 2.4 μg/m3 (10) 36.0
 
Feb. 25, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 2.3 μg/m3 (10) 37.0
 
Feb. 25, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 2.4 μg/m3 (10) 38.0
 
Feb. 25, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 2.4 μg/m3 (10) 39.0
 
Feb. 25, 2021, midnight N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 1.9 μg/m3 (8) 38.0
 
Feb. 24, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 2.0 μg/m3 (9) 38.0
 
Feb. 24, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 2.9 μg/m3 (13) 38.0
 
Feb. 24, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 1.5 μg/m3 (7) 40.0
 
Feb. 24, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 2.0 μg/m3 (9) 39.0
 
Feb. 24, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 3.2 μg/m3 (14) 36.0
 
Feb. 24, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 2.5 μg/m3 (11) 37.0
 
Feb. 24, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 2.5 μg/m3 (11) 36.0
 
Feb. 24, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 3.4 μg/m3 (15) 33.0
 
Feb. 24, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 4.2 μg/m3 (18) 29.0
 
Feb. 24, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 4.5 μg/m3 (19) 25.0
 
Feb. 24, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 4.1 μg/m3 (18) 28.0
 
Feb. 24, 2021, noon N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 3.6 μg/m3 (16) 28.0
 
Feb. 24, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 2.9 μg/m3 (13) 30.0
 
Feb. 24, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 2.2 μg/m3 (10) 29.0
 
Feb. 24, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 2.2 μg/m3 (10) 25.0
 
Feb. 24, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 2.0 μg/m3 (9) 31.0
 
Feb. 24, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 3.5 μg/m3 (15) 30.0
 
Feb. 24, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 2.4 μg/m3 (10) 32.0
 
Feb. 24, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 2.3 μg/m3 (10) 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 N/A 2.3 μg/m3 (10) 36.0
 
Feb. 24, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 1.7 μg/m3 (8) 39.0
 
Feb. 24, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 2.0 μg/m3 (9) 40.0
 
Feb. 24, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 1.4 μg/m3 (6) 41.0
 
Feb. 24, 2021, midnight N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 1.0 μg/m3 (5) 40.0
 
Feb. 23, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 0.9 μg/m3 (4) 41.0
 
Feb. 23, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 0.8 μg/m3 (4) 41.0
 
Feb. 23, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 1.2 μg/m3 (5) 41.0
 
Feb. 23, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 1.8 μg/m3 (8) 39.0
 
Feb. 23, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 1.2 μg/m3 (5) 39.0
 
Feb. 23, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 1.4 μg/m3 (6) 39.0
 
Feb. 23, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 1.6 μg/m3 (7) 38.0
 
Feb. 23, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 2.3 μg/m3 (10) 37.0
 
Feb. 23, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 2.3 μg/m3 (10) 36.0
 
Feb. 23, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 2.2 μg/m3 (10) 37.0
 
Feb. 23, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 1.8 μg/m3 (8) 37.0
 
Feb. 23, 2021, noon N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 1.8 μg/m3 (8) 38.0
 
Feb. 23, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 2.0 μg/m3 (9) 36.0
 
Feb. 23, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 2.8 μg/m3 (12) 32.0
 
Feb. 23, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 2.9 μg/m3 (13) 34.0
 
Feb. 23, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 2.9 μg/m3 (13) 37.0
 
Feb. 23, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 1.5 μg/m3 (7) 40.0
 
Feb. 23, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 2.3 μg/m3 (10) 39.0
 
Feb. 23, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 1.2 μg/m3 (5) 41.0
 
Feb. 23, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 1.2 μg/m3 (5) 41.0
 
Feb. 23, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 1.1 μg/m3 (5) 41.0
 
Feb. 23, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 0.9 μg/m3 (4) 43.0
 
Feb. 23, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 0.8 μg/m3 (4) 44.0
 
Feb. 23, 2021, midnight N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 0.7 μg/m3 (3) 41.0
 
Feb. 22, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 0.6 μg/m3 (3) 43.0
 
Feb. 22, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A 0.8 μg/m3 (4) 45.0
 
Feb. 22, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 0.9 μg/m3 (4) 44.0
 
Feb. 22, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 0.9 μg/m3 (4) 42.0
 
Feb. 22, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 2.7 μg/m3 (12) 39.0
 
Feb. 22, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 1.7 μg/m3 (8) 39.0
 
Feb. 22, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 0.3 μg/m3 (2) 40.0
 
Feb. 22, 2021, noon N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 0.4 μg/m3 (2) 38.0
 
Feb. 22, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 0.3 μg/m3 (2) 38.0
 
Feb. 22, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 0.3 μg/m3 (2) 38.0
 
Feb. 22, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 0.8 μg/m3 (4) 37.0
 
Feb. 22, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 0.5 μg/m3 (3) 36.0
 
Feb. 22, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 0.5 μg/m3 (3) 37.0
 
Feb. 22, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 0.3 μg/m3 (2) 37.0
 
Feb. 22, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 0.2 μg/m3 (1) 38.0
 
Feb. 22, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 0.3 μg/m3 (2) 38.0
 
Feb. 22, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 0.5 μg/m3 (3) 38.0
 
Feb. 22, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 1.2 μg/m3 (5) 38.0
 
Feb. 22, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 1.9 μg/m3 (8) 36.0
 
Feb. 22, 2021, midnight N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 2.2 μg/m3 (10) 36.0
 
Feb. 21, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 1.7 μg/m3 (8) 38.0
 
Feb. 21, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 1.4 μg/m3 (6) 39.0
 
Feb. 21, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 1.4 μg/m3 (6) 39.0
 
Feb. 21, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 0.7 μg/m3 (3) 40.0
 
Feb. 21, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 0.8 μg/m3 (4) 39.0
 
Feb. 21, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 0.9 μg/m3 (4) 39.0
 
Feb. 21, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 1.0 μg/m3 (5) 39.0
 
Feb. 21, 2021, noon N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 1.5 μg/m3 (7) 39.0
 
Feb. 21, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 1.7 μg/m3 (8) 38.0
 
Feb. 21, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 2.0 μg/m3 (9) 39.0
 
Feb. 21, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 2.4 μg/m3 (10) 39.0
 
Feb. 21, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 3.1 μg/m3 (13) 38.0