ID: 13

AQSQID: 000040207

Site Name: Saint John West

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

Updated: March 6, 2021, 11:32 a.m.

Location: Saint John (Saint John W), CC

Reporting: True, Located: True

Current AQI: 31.0

Saint John (Saint John W) CC, CA: 45.2536, -66.0803

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 6, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 3.0 μg/m3 (13) 31.0
 
March 6, 2021, 9 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
 
March 6, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 2.0 μg/m3 (9) 30.0
 
March 6, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 2.0 μg/m3 (9) 30.0
 
March 6, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 2.0 μg/m3 (9) 29.0
 
March 6, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 3.0 μg/m3 (13) 29.0
 
March 6, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 3.0 μg/m3 (13) 29.0
 
March 6, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 4.0 μg/m3 (17) 28.0
 
March 6, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 3.0 μg/m3 (13) 31.0
 
March 6, 2021, 1 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
 
March 6, 2021, midnight N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 3.0 μg/m3 (13) 30.0
 
March 5, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 4.0 μg/m3 (17) 29.0
 
March 5, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 3.0 μg/m3 (13) 31.0
 
March 5, 2021, 9 p.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
 
March 5, 2021, 8 p.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
 
March 5, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 3.0 μg/m3 (13) 31.0
 
March 5, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 3.0 μg/m3 (13) 30.0
 
March 5, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 3.0 μg/m3 (13) 30.0
 
March 5, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 3.0 μg/m3 (13) 29.0
 
March 5, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 6.0 μg/m3 (25) 25.0
 
March 5, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 6.0 μg/m3 (25) 26.0
 
March 5, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 6.0 μg/m3 (25) 25.0
 
March 5, 2021, noon N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 4.0 μg/m3 (17) 27.0
 
March 5, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 5.0 μg/m3 (21) 24.0
 
March 5, 2021, 10 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
 
March 5, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 2.0 μg/m3 (9) 30.0
 
March 5, 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
 
March 5, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 2.0 μg/m3 (9) 32.0
 
March 5, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 2.0 μg/m3 (9) 30.0
 
March 5, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 4.0 μg/m3 (17) 25.0
 
March 5, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 3.0 μg/m3 (13) 30.0
 
March 5, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 3.0 μg/m3 (13) 33.0
 
March 5, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 3.0 μg/m3 (13) 33.0
 
March 5, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 2.0 μg/m3 (9) 33.0
 
March 5, 2021, midnight N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 2.0 μg/m3 (9) 34.0
 
March 4, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 7.0 μg/m3 (30) 30.0
 
March 4, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 5.0 μg/m3 (21) 28.0
 
March 4, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 1.0 μg/m3 (5) 38.0
 
March 4, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 1.0 μg/m3 (5) 38.0
 
March 4, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 1.0 μg/m3 (5) 39.0
 
March 4, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 1.0 μg/m3 (5) 39.0
 
March 4, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 1.0 μg/m3 (5) 38.0
 
March 4, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 1.0 μg/m3 (5) 39.0
 
March 4, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 2.0 μg/m3 (9) 38.0
 
March 4, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A N/A 38.0
 
March 4, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 3.0 μg/m3 (13) 38.0
 
March 4, 2021, noon N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 3.0 μg/m3 (13) 38.0
 
March 4, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 3.0 μg/m3 (13) 38.0
 
March 4, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 3.0 μg/m3 (13) 38.0
 
March 4, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 2.0 μg/m3 (9) 39.0
 
March 4, 2021, 8 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
 
March 4, 2021, 7 a.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
 
March 4, 2021, 6 a.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
 
March 4, 2021, 5 a.m. 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
 
March 4, 2021, 4 a.m. 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
 
March 4, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 2.0 μg/m3 (9) 42.0
 
March 4, 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
 
March 4, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 2.0 μg/m3 (9) 41.0
 
March 4, 2021, midnight N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 2.0 μg/m3 (9) 41.0
 
March 3, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 3.0 μg/m3 (13) 42.0
 
March 3, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 3.0 μg/m3 (13) 41.0
 
March 3, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 3.0 μg/m3 (13) 42.0
 
March 3, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 2.0 μg/m3 (9) 42.0
 
March 3, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 2.0 μg/m3 (9) 42.0
 
March 3, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 2.0 μg/m3 (9) 41.0
 
March 3, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 2.0 μg/m3 (9) 41.0
 
March 3, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 2.0 μg/m3 (9) 41.0
 
March 3, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 3.0 μg/m3 (13) 40.0
 
March 3, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 3.0 μg/m3 (13) 40.0
 
March 3, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 3.0 μg/m3 (13) 38.0
 
March 3, 2021, noon N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 3.0 μg/m3 (13) 38.0
 
March 3, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 3.0 μg/m3 (13) 38.0
 
March 3, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 2.0 μg/m3 (9) 38.0
 
March 3, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 2.0 μg/m3 (9) 38.0
 
March 3, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 2.0 μg/m3 (9) 38.0
 
March 3, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 1.0 μg/m3 (5) 38.0
 
March 3, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 1.0 μg/m3 (5) 38.0
 
March 3, 2021, 5 a.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
 
March 3, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 3.0 μg/m3 (13) 36.0
 
March 3, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 3.0 μg/m3 (13) 35.0
 
March 3, 2021, 2 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
 
March 3, 2021, 1 a.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
 
March 3, 2021, midnight N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 3.0 μg/m3 (13) 38.0
 
March 2, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 3.0 μg/m3 (13) 38.0
 
March 2, 2021, 10 p.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
 
March 2, 2021, 9 p.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
 
March 2, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 3.0 μg/m3 (13) 36.0
 
March 2, 2021, 7 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
 
March 2, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 4.0 μg/m3 (17) 34.0
 
March 2, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 3.0 μg/m3 (13) 33.0
 
March 2, 2021, 4 p.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
 
March 2, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 4.0 μg/m3 (17) 33.0
 
March 2, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 4.0 μg/m3 (17) 33.0
 
March 2, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 4.0 μg/m3 (17) 33.0
 
March 2, 2021, noon N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 4.0 μg/m3 (17) 33.0
 
March 2, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 4.0 μg/m3 (17) 32.0
 
March 2, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 4.0 μg/m3 (17) 34.0
 
March 2, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 3.0 μg/m3 (13) 35.0
 
March 2, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 3.0 μg/m3 (13) 35.0
 
March 2, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 3.0 μg/m3 (13) 35.0
 
March 2, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 2.0 μg/m3 (9) 35.0
 
March 2, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 2.0 μg/m3 (9) 34.0
 
March 2, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 2.0 μg/m3 (9) 35.0
 
March 2, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 2.0 μg/m3 (9) 35.0
 
March 2, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 2.0 μg/m3 (9) 35.0
 
March 2, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 1.0 μg/m3 (5) 37.0
 
March 2, 2021, midnight N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 1.0 μg/m3 (5) 38.0
 
March 1, 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
 
March 1, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 3.0 μg/m3 (13) 33.0
 
March 1, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 4.0 μg/m3 (17) 38.0
 
March 1, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 4.0 μg/m3 (17) 39.0
 
March 1, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 4.0 μg/m3 (17) 40.0
 
March 1, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 4.0 μg/m3 (17) 40.0
 
March 1, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 6.0 μg/m3 (25) 39.0
 
March 1, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 7.0 μg/m3 (30) 39.0
 
March 1, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 8.0 μg/m3 (34) 39.0
 
March 1, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 8.0 μg/m3 (34) 40.0
 
March 1, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 7.0 μg/m3 (30) 40.0
 
March 1, 2021, noon N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 6.0 μg/m3 (25) 39.0
 
March 1, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 7.0 μg/m3 (30) 39.0
 
March 1, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 5.0 μg/m3 (21) 38.0
 
March 1, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 5.0 μg/m3 (21) 38.0
 
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 5.0 μg/m3 (21) 38.0
 
March 1, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 5.0 μg/m3 (21) 38.0
 
March 1, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 4.0 μg/m3 (17) 34.0
 
March 1, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 4.0 μg/m3 (17) 34.0
 
March 1, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 4.0 μg/m3 (17) 34.0
 
March 1, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 5.0 μg/m3 (21) 35.0
 
March 1, 2021, 2 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
 
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 7.0 μg/m3 (30) 34.0
 
March 1, 2021, midnight N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 6.0 μg/m3 (25) 36.0
 
Feb. 28, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 5.0 μg/m3 (21) 37.0
 
Feb. 28, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 4.0 μg/m3 (17) 39.0
 
Feb. 28, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 5.0 μg/m3 (21) 38.0
 
Feb. 28, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 7.0 μg/m3 (30) 30.0
 
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 7.0 μg/m3 (30) 33.0
 
Feb. 28, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 5.0 μg/m3 (21) 36.0
 
Feb. 28, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 4.0 μg/m3 (17) 40.0
 
Feb. 28, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 5.0 μg/m3 (21) 38.0
 
Feb. 28, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 6.0 μg/m3 (25) 36.0
 
Feb. 28, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 5.0 μg/m3 (21) 38.0
 
Feb. 28, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 9.0 μg/m3 (38) 38.0
 
Feb. 28, 2021, noon N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 7.0 μg/m3 (30) 30.0
 
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 8.0 μg/m3 (34) 34.0
 
Feb. 28, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 7.0 μg/m3 (30) 32.0
 
Feb. 28, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 7.0 μg/m3 (30) 30.0
 
Feb. 28, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 6.0 μg/m3 (25) 27.0
 
Feb. 28, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 2.0 μg/m3 (9) 37.0
 
Feb. 28, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 1.0 μg/m3 (5) 37.0
 
Feb. 28, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 0.0 μg/m3 (0) 38.0
 
Feb. 28, 2021, 4 a.m. 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. 28, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 4.0 μg/m3 (17) 42.0
 
Feb. 28, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 6.0 μg/m3 (25) 41.0
 
Feb. 28, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 8.0 μg/m3 (34) 40.0
 
Feb. 28, 2021, midnight N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 6.0 μg/m3 (25) 39.0
 
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 5.0 μg/m3 (21) 39.0
 
Feb. 27, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 5.0 μg/m3 (21) 40.0
 
Feb. 27, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 5.0 μg/m3 (21) 41.0
 
Feb. 27, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 6.0 μg/m3 (25) 42.0
 
Feb. 27, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 5.0 μg/m3 (21) 42.0
 
Feb. 27, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 5.0 μg/m3 (21) 42.0
 
Feb. 27, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 5.0 μg/m3 (21) 43.0
 
Feb. 27, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 4.0 μg/m3 (17) 43.0
 
Feb. 27, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 4.0 μg/m3 (17) 43.0
 
Feb. 27, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 3.0 μg/m3 (13) 42.0
 
Feb. 27, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 7.0 μg/m3 (30) 34.0
 
Feb. 27, 2021, noon N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 7.0 μg/m3 (30) 30.0
 
Feb. 27, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 8.0 μg/m3 (34) 34.0