ID: 2125

AQSQID: 230031011

Site Name: Presque Isle Riverside

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

Updated: April 22, 2021, 11:43 a.m.

Location: Presque Isle (Main St), ME

Reporting: True, Located: True

Current AQI: 9.0

Presque Isle (Main St) ME, US: 46.682299, -68.016195

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
April 22, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
April 22, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 2.0 μg/m3 (9) 9.0
 
April 22, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 3.0 μg/m3 (13) 13.0
 
April 22, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) 1.0 μg/m3 (5) 5.0
 
April 22, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 1.0 μg/m3 (5) 5.0
 
April 22, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (1) 1.0 μg/m3 (5) 5.0
 
April 22, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (1) -1.0 μg/m3 (0) 1.0
 
April 22, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 1.0 μg/m3 (5) 5.0
 
April 22, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 2.0 μg/m3 (9) 9.0
 
April 22, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (1) 1.0 μg/m3 (5) 5.0
 
April 22, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) 1.0 μg/m3 (5) 5.0
 
April 21, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (1) -1.0 μg/m3 (0) 1.0
 
April 21, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) -1.0 μg/m3 (0) 2.0
 
April 21, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 0.0 μg/m3 (0) 3.0
 
April 21, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 1.0 μg/m3 (5) 5.0
 
April 21, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 1.0 μg/m3 (5) 5.0
 
April 21, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 1.0 μg/m3 (5) 5.0
 
April 21, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 2.0 μg/m3 (9) 9.0
 
April 21, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) -1.0 μg/m3 (0) 3.0
 
April 21, 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) -1.0 μg/m3 (0) 2.0
 
April 21, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 1.0 μg/m3 (5) 5.0
 
April 21, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (22) 1.0 μg/m3 (5) 22.0
 
April 21, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (28) 1.0 μg/m3 (5) 28.0
 
April 21, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 33.0 μg/m3 (31) 2.0 μg/m3 (9) 31.0
 
April 21, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 44.0 μg/m3 (41) 3.0 μg/m3 (13) 41.0
 
April 21, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (23) 3.0 μg/m3 (13) 23.0
 
April 21, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (13) 6.0 μg/m3 (25) 25.0
 
April 21, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 5.0 μg/m3 (21) 21.0
 
April 21, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (8) 4.0 μg/m3 (17) 17.0
 
April 21, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 4.0 μg/m3 (17) 17.0
 
April 21, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (20) 6.0 μg/m3 (25) 25.0
 
April 21, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 33.0 μg/m3 (31) 5.0 μg/m3 (21) 31.0
 
April 21, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 47.0 μg/m3 (44) 3.0 μg/m3 (13) 44.0
 
April 21, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 31.0 μg/m3 (29) 3.0 μg/m3 (13) 29.0
 
April 21, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (18) 5.0 μg/m3 (21) 21.0
 
April 20, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (7) 1.0 μg/m3 (5) 7.0
 
April 20, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) 3.0 μg/m3 (13) 13.0
 
April 20, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 5.0 μg/m3 (21) 21.0
 
April 20, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) 4.0 μg/m3 (17) 17.0
 
April 20, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (18) 4.0 μg/m3 (17) 18.0
 
April 20, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 86.0 μg/m3 (67) 5.0 μg/m3 (21) 67.0
 
April 20, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 51.0 μg/m3 (48) 2.0 μg/m3 (9) 48.0
 
April 20, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 40.0 μg/m3 (38) 2.0 μg/m3 (9) 38.0
 
April 20, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 31.0 μg/m3 (29) 4.0 μg/m3 (17) 29.0
 
April 20, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (30) 5.0 μg/m3 (21) 30.0
 
April 20, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (23) 8.0 μg/m3 (34) 34.0
 
April 20, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 33.0 μg/m3 (31) 6.0 μg/m3 (25) 31.0
 
April 20, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
April 20, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 99.0 μg/m3 (73) 16.0 μg/m3 (60) 73.0
 
April 20, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 86.0 μg/m3 (67) 15.0 μg/m3 (58) 67.0
 
April 20, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (23) 10.0 μg/m3 (42) 42.0
 
April 20, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (16) 5.0 μg/m3 (21) 21.0
 
April 20, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 6.0 μg/m3 (25) 25.0
 
April 20, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) 7.0 μg/m3 (30) 30.0
 
April 20, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
April 20, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
April 20, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (50) 50.0
 
April 20, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.0 μg/m3 (46) 46.0
 
April 20, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
April 19, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
April 19, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
April 19, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
April 19, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
April 19, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
April 19, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
April 19, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 0.0
April 19, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A -2.0 μg/m3 (0) 0.0
April 19, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
April 19, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (17) 17.0
 
April 19, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
April 19, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
April 19, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
April 19, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (13) 13.0
 
April 19, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
April 19, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (30) 30.0
 
April 19, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (66) 66.0
 
April 19, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 17.0 μg/m3 (62) 62.0
 
April 19, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
April 19, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (30) 30.0
 
April 19, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
April 19, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (30) 30.0
 
April 19, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (34) 34.0
 
April 19, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (34) 34.0
 
April 18, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
April 18, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
April 18, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 0.0
April 18, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A -2.0 μg/m3 (0) 0.0
April 18, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
April 18, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (5) 5.0
 
April 18, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A -2.0 μg/m3 (0) 0.0
April 18, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A -1.0 μg/m3 (0) 0.0
April 18, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 0.0
April 18, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 0.0
April 18, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 16.0 μg/m3 (15) -1.0 μg/m3 (0) 15.0
 
April 18, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) -1.0 μg/m3 (0) 14.0
 
April 18, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 0.0 μg/m3 (0) 9.0
 
April 18, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) -1.0 μg/m3 (0) 3.0
 
April 18, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) 0.0 μg/m3 (0) 2.0
 
April 18, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A -1.0 μg/m3 (0) -1.0 μg/m3 (0) 0.0
April 18, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 0.0 μg/m3 (0) N/A 0.0
April 18, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) -3.0 μg/m3 (0) 3.0
 
April 18, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) -1.0 μg/m3 (0) 3.0
 
April 18, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (2) 0.0 μg/m3 (0) 2.0
 
April 18, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (1) 1.0 μg/m3 (5) 5.0
 
April 18, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A -3.0 μg/m3 (0) 0.0 μg/m3 (0) 0.0
April 18, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (1) 1.0 μg/m3 (5) 5.0
 
April 18, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 1.0 μg/m3 (5) 5.0
 
April 17, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 8.0 μg/m3 (8) -2.0 μg/m3 (0) 8.0
 
April 17, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 12.0 μg/m3 (12) -3.0 μg/m3 (0) 12.0
 
April 17, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (10) -1.0 μg/m3 (0) 10.0
 
April 17, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (13) 2.0 μg/m3 (9) 13.0
 
April 17, 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) 2.0 μg/m3 (9) 24.0
 
April 17, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (13) 1.0 μg/m3 (5) 13.0
 
April 17, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 1.0 μg/m3 (5) 5.0
 
April 17, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 4.0 μg/m3 (17) 17.0
 
April 17, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) 6.0 μg/m3 (25) 25.0
 
April 17, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (6) 4.0 μg/m3 (17) 17.0
 
April 17, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) 2.0 μg/m3 (9) 9.0
 
April 17, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) -1.0 μg/m3 (0) 9.0
 
April 17, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 47.0 μg/m3 (44) 0.0 μg/m3 (0) 44.0
 
April 17, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) N/A 4.0
 
April 17, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) N/A 3.0
 
April 17, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) N/A 4.0
 
April 17, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) N/A 4.0
 
April 17, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 1.0 μg/m3 (1) 1.0 μg/m3 (5) 5.0
 
April 17, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 3.0 μg/m3 (3) -2.0 μg/m3 (0) 3.0
 
April 17, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 4.0 μg/m3 (4) -1.0 μg/m3 (0) 4.0
 
April 17, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (5) -1.0 μg/m3 (0) 5.0
 
April 17, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (7) 1.0 μg/m3 (5) 7.0
 
April 17, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 3.0 μg/m3 (13) 13.0
 
April 17, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (10) 1.0 μg/m3 (5) 10.0
 
April 16, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (13) 3.0 μg/m3 (13) 13.0
 
April 16, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (32) 4.0 μg/m3 (17) 32.0
 
April 16, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 32.0 μg/m3 (30) 4.0 μg/m3 (17) 30.0
 
April 16, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 75.0 μg/m3 (61) 6.0 μg/m3 (25) 61.0
 
April 16, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (32) 4.0 μg/m3 (17) 32.0
 
April 16, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 72.0 μg/m3 (60) 3.0 μg/m3 (13) 60.0
 
April 16, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 64.0 μg/m3 (56) 4.0 μg/m3 (17) 56.0
 
April 16, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 55.0 μg/m3 (51) 4.0 μg/m3 (17) 51.0
 
April 16, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 58.0 μg/m3 (53) 5.0 μg/m3 (21) 53.0
 
April 16, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 21.0 μg/m3 (20) 3.0 μg/m3 (13) 20.0
 
April 16, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 18.0 μg/m3 (17) 4.0 μg/m3 (17) 17.0
 
April 16, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A 24.0 μg/m3 (23) 7.0 μg/m3 (30) 30.0
 
April 16, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 34.0 μg/m3 (32) 6.0 μg/m3 (25) 32.0
 
April 16, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (18) 4.0 μg/m3 (17) 18.0
 
April 16, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 4.0 μg/m3 (17) 17.0
 
April 16, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (13) 6.0 μg/m3 (25) 25.0
 
April 16, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 9.0 μg/m3 (9) 4.0 μg/m3 (17) 17.0
 
April 16, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (7) 3.0 μg/m3 (13) 13.0
 
April 16, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (7) 4.0 μg/m3 (17) 17.0
 
April 16, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 13.0 μg/m3 (13) 6.0 μg/m3 (25) 25.0
 
April 16, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (6) 1.0 μg/m3 (5) 6.0
 
April 16, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (7) 4.0 μg/m3 (17) 17.0
 
April 16, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A N/A N/A 15.0 μg/m3 (14) 7.0 μg/m3 (30) 30.0
 
April 16, 2021, midnight N/A N/A N/A N/A N/A N/A N/A N/A 14.0 μg/m3 (13) 7.0 μg/m3 (30) 30.0
 
April 15, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 19.0 μg/m3 (18) 6.0 μg/m3 (25) 25.0
 
April 15, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 23.0 μg/m3 (22) 6.0 μg/m3 (25) 25.0
 
April 15, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (27) 1.0 μg/m3 (5) 27.0
 
April 15, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 31.0 μg/m3 (29) 1.0 μg/m3 (5) 29.0
 
April 15, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 30.0 μg/m3 (28) 3.0 μg/m3 (13) 28.0
 
April 15, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 43.0 μg/m3 (40) 4.0 μg/m3 (17) 40.0
 
April 15, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 25.0 μg/m3 (24) 6.0 μg/m3 (25) 25.0
 
April 15, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 26.0 μg/m3 (25) 5.0 μg/m3 (21) 25.0
 
April 15, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 28.0 μg/m3 (26) 0.0 μg/m3 (0) 26.0
 
April 15, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.0 μg/m3 (0) 0.0
April 15, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
April 15, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.0 μg/m3 (30) 30.0
 
April 15, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0