ID: 2495

AQSQID: 040137003

Site Name: Stjohns

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

Updated: April 10, 2021, 11:42 a.m.

Location: Laveen (Sundust Circle), AZ

Reporting: True, Located: True

Current AQI: 37.0

Laveen (Sundust Circle) AZ, US: 33.29015, -112.159874

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
April 10, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 39.9 μg/m3 (37) N/A 37.0
 
April 10, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.6 μg/m3 (26) N/A 26.0
 
April 10, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (22) N/A 22.0
 
April 10, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (18) N/A 18.0
 
April 10, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.4 μg/m3 (23) N/A 23.0
 
April 10, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 35.9 μg/m3 (34) N/A 34.0
 
April 10, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.1 μg/m3 (24) N/A 24.0
 
April 10, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.8 μg/m3 (25) N/A 25.0
 
April 10, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.6 μg/m3 (23) N/A 23.0
 
April 10, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.3 μg/m3 (17) N/A 17.0
 
April 10, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 11.3 μg/m3 (11) N/A 11.0
 
April 9, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.1 μg/m3 (23) N/A 23.0
 
April 9, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 14.3 μg/m3 (14) N/A 14.0
 
April 9, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.6 μg/m3 (7) N/A 7.0
 
April 9, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 11.1 μg/m3 (11) N/A 11.0
 
April 9, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.5 μg/m3 (25) N/A 25.0
 
April 9, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 31.5 μg/m3 (30) N/A 30.0
 
April 9, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 48.5 μg/m3 (45) N/A 45.0
 
April 9, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 42.7 μg/m3 (40) N/A 40.0
 
April 9, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 48.9 μg/m3 (46) N/A 46.0
 
April 9, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 51.3 μg/m3 (48) N/A 48.0
 
April 9, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 41.2 μg/m3 (39) N/A 39.0
 
April 9, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 41.2 μg/m3 (39) N/A 39.0
 
April 9, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.2 μg/m3 (32) N/A 32.0
 
April 9, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 31.2 μg/m3 (29) N/A 29.0
 
April 9, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (20) N/A 20.0
 
April 9, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.4 μg/m3 (19) N/A 19.0
 
April 9, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.4 μg/m3 (27) N/A 27.0
 
April 9, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.5 μg/m3 (21) N/A 21.0
 
April 9, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.7 μg/m3 (18) N/A 18.0
 
April 9, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.9 μg/m3 (27) N/A 27.0
 
April 9, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.5 μg/m3 (21) N/A 21.0
 
April 9, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) N/A 14.0
 
April 8, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.7 μg/m3 (16) N/A 16.0
 
April 8, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.9 μg/m3 (24) N/A 24.0
 
April 8, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.6 μg/m3 (26) N/A 26.0
 
April 8, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.1 μg/m3 (18) N/A 18.0
 
April 8, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.5 μg/m3 (19) N/A 19.0
 
April 8, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.4 μg/m3 (27) N/A 27.0
 
April 8, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.6 μg/m3 (33) N/A 33.0
 
April 8, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 31.7 μg/m3 (30) N/A 30.0
 
April 8, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.8 μg/m3 (26) N/A 26.0
 
April 8, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.3 μg/m3 (27) N/A 27.0
 
April 8, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.6 μg/m3 (28) N/A 28.0
 
April 8, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 24.3 μg/m3 (23) N/A 23.0
 
April 8, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.2 μg/m3 (16) N/A 16.0
 
April 8, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.3 μg/m3 (24) N/A 24.0
 
April 8, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.8 μg/m3 (28) N/A 28.0
 
April 8, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 31.6 μg/m3 (30) N/A 30.0
 
April 8, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 42.5 μg/m3 (40) N/A 40.0
 
April 8, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.7 μg/m3 (24) N/A 24.0
 
April 8, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 35.0 μg/m3 (33) N/A 33.0
 
April 8, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.4 μg/m3 (19) N/A 19.0
 
April 8, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.9 μg/m3 (20) N/A 20.0
 
April 8, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 40.7 μg/m3 (38) N/A 38.0
 
April 8, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.7 μg/m3 (29) N/A 29.0
 
April 8, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 25.4 μg/m3 (24) N/A 24.0
 
April 7, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.6 μg/m3 (13) N/A 13.0
 
April 7, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.8 μg/m3 (17) N/A 17.0
 
April 7, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.9 μg/m3 (10) N/A 10.0
 
April 7, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.1 μg/m3 (16) N/A 16.0
 
April 7, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.3 μg/m3 (25) N/A 25.0
 
April 7, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.6 μg/m3 (27) N/A 27.0
 
April 7, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.7 μg/m3 (21) N/A 21.0
 
April 7, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.7 μg/m3 (15) N/A 15.0
 
April 7, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.6 μg/m3 (18) N/A 18.0
 
April 7, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 64.9 μg/m3 (56) N/A 56.0
 
April 7, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.8 μg/m3 (28) N/A 28.0
 
April 7, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 20.8 μg/m3 (20) N/A 20.0
 
April 7, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.8 μg/m3 (19) N/A 19.0
 
April 7, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.9 μg/m3 (23) N/A 23.0
 
April 7, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.5 μg/m3 (15) N/A 15.0
 
April 7, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.4 μg/m3 (26) N/A 26.0
 
April 7, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.5 μg/m3 (23) N/A 23.0
 
April 7, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.7 μg/m3 (26) N/A 26.0
 
April 7, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 41.0 μg/m3 (38) N/A 38.0
 
April 7, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 46.6 μg/m3 (44) N/A 44.0
 
April 7, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 33.8 μg/m3 (32) N/A 32.0
 
April 7, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (20) N/A 20.0
 
April 7, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.2 μg/m3 (24) N/A 24.0
 
April 7, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 18.4 μg/m3 (18) N/A 18.0
 
April 6, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.8 μg/m3 (9) N/A 9.0
 
April 6, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.9 μg/m3 (25) N/A 25.0
 
April 6, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.2 μg/m3 (24) N/A 24.0
 
April 6, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.3 μg/m3 (21) N/A 21.0
 
April 6, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.3 μg/m3 (20) N/A 20.0
 
April 6, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.5 μg/m3 (29) N/A 29.0
 
April 6, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.1 μg/m3 (21) N/A 21.0
 
April 6, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (28) N/A 28.0
 
April 6, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 61.3 μg/m3 (55) N/A 55.0
 
April 6, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 43.6 μg/m3 (41) N/A 41.0
 
April 6, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 41.9 μg/m3 (39) N/A 39.0
 
April 6, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 39.2 μg/m3 (37) N/A 37.0
 
April 6, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 56.7 μg/m3 (52) N/A 52.0
 
April 6, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 58.0 μg/m3 (53) N/A 53.0
 
April 6, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 47.4 μg/m3 (44) N/A 44.0
 
April 6, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 41.4 μg/m3 (39) N/A 39.0
 
April 6, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 38.2 μg/m3 (36) N/A 36.0
 
April 6, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 43.1 μg/m3 (40) N/A 40.0
 
April 6, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 67.1 μg/m3 (57) N/A 57.0
 
April 6, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 102.7 μg/m3 (75) N/A 75.0
 
April 6, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 69.2 μg/m3 (59) N/A 59.0
 
April 6, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.8 μg/m3 (33) N/A 33.0
 
April 6, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.3 μg/m3 (17) N/A 17.0
 
April 6, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 19.2 μg/m3 (18) N/A 18.0
 
April 5, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.4 μg/m3 (21) N/A 21.0
 
April 5, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.1 μg/m3 (22) N/A 22.0
 
April 5, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.4 μg/m3 (15) N/A 15.0
 
April 5, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A -2.1 μg/m3 (0) N/A 0.0
April 5, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (24) N/A 24.0
 
April 5, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.5 μg/m3 (18) N/A 18.0
 
April 5, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.8 μg/m3 (27) N/A 27.0
 
April 5, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.7 μg/m3 (27) N/A 27.0
 
April 5, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 61.9 μg/m3 (55) N/A 55.0
 
April 5, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 79.4 μg/m3 (64) N/A 64.0
 
April 5, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 57.9 μg/m3 (53) N/A 53.0
 
April 5, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 41.8 μg/m3 (39) N/A 39.0
 
April 5, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 44.9 μg/m3 (42) N/A 42.0
 
April 5, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 42.6 μg/m3 (40) N/A 40.0
 
April 5, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 40.6 μg/m3 (38) N/A 38.0
 
April 5, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 53.7 μg/m3 (50) N/A 50.0
 
April 5, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.6 μg/m3 (12) N/A 12.0
 
April 5, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.3 μg/m3 (17) N/A 17.0
 
April 5, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 38.3 μg/m3 (36) N/A 36.0
 
April 5, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 36.4 μg/m3 (34) N/A 34.0
 
April 5, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 35.5 μg/m3 (33) N/A 33.0
 
April 5, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 42.3 μg/m3 (40) N/A 40.0
 
April 5, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.6 μg/m3 (23) N/A 23.0
 
April 5, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 24.9 μg/m3 (24) N/A 24.0
 
April 4, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.5 μg/m3 (4) N/A 4.0
 
April 4, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.6 μg/m3 (10) N/A 10.0
 
April 4, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.8 μg/m3 (13) N/A 13.0
 
April 4, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.9 μg/m3 (27) N/A 27.0
 
April 4, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.3 μg/m3 (20) N/A 20.0
 
April 4, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.1 μg/m3 (17) N/A 17.0
 
April 4, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 22.3 μg/m3 (21) N/A 21.0
 
April 4, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.4 μg/m3 (30) N/A 30.0
 
April 4, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.7 μg/m3 (25) N/A 25.0
 
April 4, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 55.2 μg/m3 (52) N/A 52.0
 
April 4, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 67.6 μg/m3 (58) N/A 58.0
 
April 4, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 40.0 μg/m3 (38) N/A 38.0
 
April 4, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 57.0 μg/m3 (52) N/A 52.0
 
April 4, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 51.9 μg/m3 (49) N/A 49.0
 
April 4, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 54.2 μg/m3 (51) N/A 51.0
 
April 4, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 48.9 μg/m3 (46) N/A 46.0
 
April 4, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.2 μg/m3 (20) N/A 20.0
 
April 4, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.2 μg/m3 (28) N/A 28.0
 
April 4, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.9 μg/m3 (33) N/A 33.0
 
April 4, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.9 μg/m3 (31) N/A 31.0
 
April 4, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 40.3 μg/m3 (38) N/A 38.0
 
April 4, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 39.0 μg/m3 (37) N/A 37.0
 
April 4, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.6 μg/m3 (23) N/A 23.0
 
April 4, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 13.4 μg/m3 (13) N/A 13.0
 
April 3, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 20.1 μg/m3 (19) N/A 19.0
 
April 3, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.4 μg/m3 (16) N/A 16.0
 
April 3, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.6 μg/m3 (23) N/A 23.0
 
April 3, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 27.9 μg/m3 (26) N/A 26.0
 
April 3, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 43.9 μg/m3 (41) N/A 41.0
 
April 3, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 36.1 μg/m3 (34) N/A 34.0
 
April 3, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 35.1 μg/m3 (33) N/A 33.0
 
April 3, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 37.5 μg/m3 (35) N/A 35.0
 
April 3, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 54.7 μg/m3 (51) N/A 51.0
 
April 3, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 50.8 μg/m3 (48) N/A 48.0
 
April 3, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 48.7 μg/m3 (46) N/A 46.0
 
April 3, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 43.3 μg/m3 (41) N/A 41.0
 
April 3, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 43.7 μg/m3 (41) N/A 41.0
 
April 3, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 57.1 μg/m3 (53) N/A 53.0
 
April 3, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 58.0 μg/m3 (53) N/A 53.0