ID: 1463

AQSQID: 000070301

Site Name: Flin Flon

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

Updated: May 17, 2021, 9:50 p.m.

Location: Flin Flon (Main St), CC

Reporting: True, Located: True

Current AQI: 20.0

Flin Flon (Main St) CC, CA: 54.765, -101.8753

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 17, 2021, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 1.9 μg/m3 (8) 20.0
 
May 17, 2021, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (19) N/A N/A 1.8 μg/m3 (8) 19.0
 
May 17, 2021, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 19.0 ppb (18) N/A N/A 1.8 μg/m3 (8) 18.0
 
May 17, 2021, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 19.0 ppb (18) N/A N/A 1.7 μg/m3 (8) 18.0
 
May 17, 2021, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 19.0 ppb (18) N/A N/A 1.6 μg/m3 (7) 18.0
 
May 17, 2021, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 1.5 μg/m3 (7) 17.0
 
May 17, 2021, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 1.5 μg/m3 (7) 17.0
 
May 17, 2021, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 1.4 μg/m3 (6) 20.0
 
May 17, 2021, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 1.4 μg/m3 (6) 20.0
 
May 17, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.4 μg/m3 (6) 6.0
 
May 17, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 1.5 μg/m3 (7) 20.0
 
May 17, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 1.5 μg/m3 (7) 20.0
 
May 17, 2021, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (19) N/A N/A 1.5 μg/m3 (7) 19.0
 
May 17, 2021, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 2.0 μg/m3 (9) 20.0
 
May 17, 2021, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 2.7 μg/m3 (12) 20.0
 
May 17, 2021, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A 3.2 μg/m3 (14) 22.0
 
May 17, 2021, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 3.4 μg/m3 (15) 23.0
 
May 17, 2021, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A 2.9 μg/m3 (13) 24.0
 
May 17, 2021, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 27.0 ppb (25) N/A N/A 2.1 μg/m3 (9) 25.0
 
May 17, 2021, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 26.0 ppb (25) N/A N/A 1.6 μg/m3 (7) 25.0
 
May 16, 2021, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 1.6 μg/m3 (7) 23.0
 
May 16, 2021, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A 1.4 μg/m3 (6) 22.0
 
May 16, 2021, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 1.3 μg/m3 (6) 20.0
 
May 16, 2021, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (19) N/A N/A 1.4 μg/m3 (6) 19.0
 
May 16, 2021, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (19) N/A N/A 1.8 μg/m3 (8) 19.0
 
May 16, 2021, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 19.0 ppb (18) N/A N/A 1.9 μg/m3 (8) 18.0
 
May 16, 2021, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 2.1 μg/m3 (9) 17.0
 
May 16, 2021, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (19) N/A N/A 2.3 μg/m3 (10) 19.0
 
May 16, 2021, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A 2.1 μg/m3 (9) 21.0
 
May 16, 2021, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 2.2 μg/m3 (10) 23.0
 
May 16, 2021, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 2.5 μg/m3 (11) 20.0
 
May 16, 2021, noon N/A N/A N/A -1.0 ppb (0) N/A 0.0 ppb (0) 20.0 ppb (19) N/A N/A 6.1 μg/m3 (26) 26.0
 
May 16, 2021, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 3.4 μg/m3 (15) 20.0
 
May 16, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.4 μg/m3 (15) 15.0
 
May 16, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A 3.7 μg/m3 (16) 16.0
 
May 16, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 4.1 μg/m3 (18) 18.0
 
May 16, 2021, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 20.0 ppb (19) N/A N/A 4.4 μg/m3 (19) 19.0
 
May 16, 2021, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A 4.3 μg/m3 (18) 21.0
 
May 16, 2021, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 3.9 μg/m3 (17) 23.0
 
May 16, 2021, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 27.0 ppb (25) N/A N/A 4.5 μg/m3 (19) 25.0
 
May 16, 2021, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A 4.8 μg/m3 (20) 28.0
 
May 16, 2021, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (27) N/A N/A 5.3 μg/m3 (23) 27.0
 
May 16, 2021, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A 5.1 μg/m3 (22) 28.0
 
May 16, 2021, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (27) N/A N/A 4.2 μg/m3 (18) 27.0
 
May 15, 2021, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A 4.2 μg/m3 (18) 28.0
 
May 15, 2021, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A 3.5 μg/m3 (15) 28.0
 
May 15, 2021, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (27) N/A N/A 2.8 μg/m3 (12) 27.0
 
May 15, 2021, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 26.0 ppb (25) N/A N/A 2.1 μg/m3 (9) 25.0
 
May 15, 2021, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 1.9 μg/m3 (8) 23.0
 
May 15, 2021, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A 1.9 μg/m3 (8) 22.0
 
May 15, 2021, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 1.8 μg/m3 (8) 23.0
 
May 15, 2021, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 1.8 μg/m3 (8) 23.0
 
May 15, 2021, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 1.8 μg/m3 (8) 23.0
 
May 15, 2021, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 1.8 μg/m3 (8) 23.0
 
May 15, 2021, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A 1.8 μg/m3 (8) 22.0
 
May 15, 2021, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A 1.8 μg/m3 (8) 22.0
 
May 15, 2021, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 1.8 μg/m3 (8) 23.0
 
May 15, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.8 μg/m3 (8) 8.0
 
May 15, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 1.8 μg/m3 (8) 25.0
 
May 15, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 27.0 ppb (25) N/A N/A 1.8 μg/m3 (8) 25.0
 
May 15, 2021, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 27.0 ppb (25) N/A N/A 1.8 μg/m3 (8) 25.0
 
May 15, 2021, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 26.0 ppb (25) N/A N/A 1.9 μg/m3 (8) 25.0
 
May 15, 2021, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 26.0 ppb (25) N/A N/A 2.0 μg/m3 (9) 25.0
 
May 15, 2021, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (26) N/A N/A 2.0 μg/m3 (9) 26.0
 
May 15, 2021, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (27) N/A N/A 1.9 μg/m3 (8) 27.0
 
May 15, 2021, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (27) N/A N/A 1.8 μg/m3 (8) 27.0
 
May 15, 2021, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A 1.8 μg/m3 (8) 28.0
 
May 15, 2021, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (26) N/A N/A 1.8 μg/m3 (8) 26.0
 
May 14, 2021, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 27.0 ppb (25) N/A N/A 1.8 μg/m3 (8) 25.0
 
May 14, 2021, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 26.0 ppb (25) N/A N/A 1.8 μg/m3 (8) 25.0
 
May 14, 2021, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A 2.1 μg/m3 (9) 22.0
 
May 14, 2021, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 2.0 μg/m3 (9) 23.0
 
May 14, 2021, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A 2.0 μg/m3 (9) 24.0
 
May 14, 2021, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A 2.0 μg/m3 (9) 24.0
 
May 14, 2021, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A 2.0 μg/m3 (9) 24.0
 
May 14, 2021, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 2.0 μg/m3 (9) 23.0
 
May 14, 2021, 3 p.m. N/A N/A N/A -1.0 ppb (0) N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A 1.9 μg/m3 (8) 21.0
 
May 14, 2021, 2 p.m. N/A N/A N/A -1.0 ppb (0) N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A 1.9 μg/m3 (8) 22.0
 
May 14, 2021, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 1.9 μg/m3 (8) 23.0
 
May 14, 2021, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 2.0 μg/m3 (9) 23.0
 
May 14, 2021, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A 2.3 μg/m3 (10) 24.0
 
May 14, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.6 μg/m3 (11) 11.0
 
May 14, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 2.7 μg/m3 (12) 25.0
 
May 14, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (26) N/A N/A 3.0 μg/m3 (13) 26.0
 
May 14, 2021, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (27) N/A N/A 3.3 μg/m3 (14) 27.0
 
May 14, 2021, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A 3.6 μg/m3 (16) 28.0
 
May 14, 2021, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A 4.1 μg/m3 (18) 28.0
 
May 14, 2021, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (27) N/A N/A 5.0 μg/m3 (21) 27.0
 
May 14, 2021, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 5.1 μg/m3 (22) 29.0
 
May 14, 2021, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (30) N/A N/A 5.0 μg/m3 (21) 30.0
 
May 14, 2021, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 4.0 μg/m3 (17) 31.0
 
May 14, 2021, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 3.6 μg/m3 (16) 32.0
 
May 13, 2021, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (33) N/A N/A 2.8 μg/m3 (12) 33.0
 
May 13, 2021, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 2.0 μg/m3 (9) 32.0
 
May 13, 2021, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 2.2 μg/m3 (10) 31.0
 
May 13, 2021, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 2.0 μg/m3 (9) 29.0
 
May 13, 2021, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 2.0 μg/m3 (9) 29.0
 
May 13, 2021, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A 2.0 μg/m3 (9) 28.0
 
May 13, 2021, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 27.0 ppb (25) N/A N/A 2.0 μg/m3 (9) 25.0
 
May 13, 2021, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A 2.0 μg/m3 (9) 24.0
 
May 13, 2021, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 2.0 μg/m3 (9) 23.0
 
May 13, 2021, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A 2.1 μg/m3 (9) 21.0
 
May 13, 2021, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A 2.6 μg/m3 (11) 21.0
 
May 13, 2021, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 3.2 μg/m3 (14) 20.0
 
May 13, 2021, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A 3.4 μg/m3 (15) 21.0
 
May 13, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.5 μg/m3 (15) 15.0
 
May 13, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 4.0 μg/m3 (17) 22.0
 
May 13, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A 4.6 μg/m3 (20) 21.0
 
May 13, 2021, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A 5.2 μg/m3 (22) 22.0
 
May 13, 2021, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A 5.7 μg/m3 (24) 24.0
 
May 13, 2021, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A 6.3 μg/m3 (27) 27.0
 
May 13, 2021, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 27.0 ppb (25) N/A N/A 7.1 μg/m3 (30) 30.0
 
May 13, 2021, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 7.6 μg/m3 (32) 32.0
 
May 13, 2021, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 37.0 ppb (35) N/A N/A 7.5 μg/m3 (32) 35.0
 
May 13, 2021, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 38.0 ppb (36) N/A N/A 6.9 μg/m3 (29) 36.0
 
May 13, 2021, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (33) N/A N/A 5.6 μg/m3 (24) 33.0
 
May 12, 2021, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 36.0 ppb (34) N/A N/A 4.7 μg/m3 (20) 34.0
 
May 12, 2021, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 38.0 ppb (36) N/A N/A 5.7 μg/m3 (24) 36.0
 
May 12, 2021, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (33) N/A N/A 5.8 μg/m3 (25) 33.0
 
May 12, 2021, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 5.1 μg/m3 (22) 31.0
 
May 12, 2021, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (30) N/A N/A 4.2 μg/m3 (18) 30.0
 
May 12, 2021, 6 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A 4.3 μg/m3 (18) 28.0
 
May 12, 2021, 5 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 4.7 μg/m3 (20) 29.0
 
May 12, 2021, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 5.0 μg/m3 (21) 29.0
 
May 12, 2021, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (27) N/A N/A 5.8 μg/m3 (25) 27.0
 
May 12, 2021, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (27) N/A N/A 6.6 μg/m3 (28) 28.0
 
May 12, 2021, 1 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 7.5 μg/m3 (32) 32.0
 
May 12, 2021, noon N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 8.6 μg/m3 (36) 36.0
 
May 12, 2021, 11 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 9.1 μg/m3 (38) 38.0
 
May 12, 2021, 10 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 10.4 μg/m3 (44) 44.0
 
May 12, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 11.4 μg/m3 (48) 48.0
 
May 12, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 36.0 ppb (34) N/A N/A 10.3 μg/m3 (43) 43.0
 
May 12, 2021, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 38.0 ppb (36) N/A N/A 10.5 μg/m3 (44) 44.0
 
May 12, 2021, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 39.0 ppb (37) N/A N/A 11.0 μg/m3 (46) 46.0
 
May 12, 2021, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (38) N/A N/A 11.8 μg/m3 (50) 50.0
 
May 12, 2021, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 43.0 ppb (40) N/A N/A 12.4 μg/m3 (52) 52.0
 
May 12, 2021, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 45.0 ppb (42) N/A N/A 11.8 μg/m3 (50) 50.0
 
May 12, 2021, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 46.0 ppb (43) N/A N/A 11.8 μg/m3 (50) 50.0
 
May 12, 2021, 1 a.m. N/A N/A N/A -1.0 ppb (0) N/A 0.0 ppb (0) 46.0 ppb (43) N/A N/A 11.6 μg/m3 (49) 49.0
 
May 12, 2021, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 47.0 ppb (44) N/A N/A 11.1 μg/m3 (47) 47.0
 
May 11, 2021, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 47.0 ppb (44) N/A N/A 10.3 μg/m3 (43) 44.0
 
May 11, 2021, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 47.0 ppb (44) N/A N/A 9.3 μg/m3 (39) 44.0
 
May 11, 2021, 9 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 48.0 ppb (45) N/A N/A 7.8 μg/m3 (33) 45.0
 
May 11, 2021, 8 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 45.0 ppb (42) N/A N/A 6.7 μg/m3 (28) 42.0
 
May 11, 2021, 7 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 45.0 ppb (42) N/A N/A 5.8 μg/m3 (25) 42.0
 
May 11, 2021, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 46.0 ppb (43) N/A N/A 4.7 μg/m3 (20) 43.0
 
May 11, 2021, 5 p.m. N/A N/A N/A -1.0 ppb (0) N/A 0.0 ppb (0) 48.0 ppb (45) N/A N/A 3.6 μg/m3 (16) 45.0
 
May 11, 2021, 4 p.m. N/A N/A N/A -1.0 ppb (0) N/A 0.0 ppb (0) 46.0 ppb (43) N/A N/A 2.6 μg/m3 (11) 43.0
 
May 11, 2021, 3 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 40.0 ppb (38) N/A N/A 2.3 μg/m3 (10) 38.0
 
May 11, 2021, 2 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 36.0 ppb (34) N/A N/A 2.1 μg/m3 (9) 34.0
 
May 11, 2021, 1 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A 2.3 μg/m3 (10) 28.0
 
May 11, 2021, noon N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A 3.3 μg/m3 (14) 24.0
 
May 11, 2021, 11 a.m. N/A N/A N/A -1.0 ppb (0) N/A 0.0 ppb (0) 28.0 ppb (26) N/A N/A 3.8 μg/m3 (16) 26.0
 
May 11, 2021, 10 a.m. N/A N/A N/A -1.0 ppb (0) N/A N/A N/A N/A N/A 4.1 μg/m3 (18) 18.0
 
May 11, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 4.8 μg/m3 (20) 29.0
 
May 11, 2021, 8 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (30) N/A N/A 5.5 μg/m3 (23) 30.0
 
May 11, 2021, 7 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 6.3 μg/m3 (27) 31.0
 
May 11, 2021, 6 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 7.1 μg/m3 (30) 31.0
 
May 11, 2021, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 8.2 μg/m3 (35) 35.0
 
May 11, 2021, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (33) N/A N/A 9.0 μg/m3 (38) 38.0
 
May 11, 2021, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 39.0 ppb (37) N/A N/A 9.0 μg/m3 (38) 38.0
 
May 11, 2021, 2 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 40.0 ppb (38) N/A N/A 8.1 μg/m3 (34) 38.0
 
May 11, 2021, 1 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (38) N/A N/A 6.7 μg/m3 (28) 38.0
 
May 11, 2021, midnight N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (38) N/A N/A 5.2 μg/m3 (22) 38.0
 
May 10, 2021, 11 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (38) N/A N/A 4.3 μg/m3 (18) 38.0
 
May 10, 2021, 10 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 41.0 ppb (38) N/A N/A 4.0 μg/m3 (17) 38.0
 
May 10, 2021, 9 p.m. N/A N/A N/A -1.0 ppb (0) N/A 0.0 ppb (0) 41.0 ppb (38) N/A N/A 3.7 μg/m3 (16) 38.0
 
May 10, 2021, 8 p.m. N/A N/A N/A -1.0 ppb (0) N/A 0.0 ppb (0) 39.0 ppb (37) N/A N/A 2.8 μg/m3 (12) 37.0