ID: 1463

AQSQID: 000070301

Site Name: Flin Flon

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

Updated: Sept. 28, 2021, 7:02 p.m.

Location: Flin Flon (Main St), CC

Reporting: True, Located: True

Current AQI: 16.0

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
Sept. 28, 2021, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 15.0 ppb (14) N/A N/A 3.7 μg/m3 (16) 16.0
 
Sept. 28, 2021, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 14.0 ppb (13) N/A N/A 2.7 μg/m3 (12) 13.0
 
Sept. 28, 2021, 2 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 12.0 ppb (12) N/A N/A 2.1 μg/m3 (9) 12.0
 
Sept. 28, 2021, 1 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 12.0 ppb (12) N/A N/A 1.5 μg/m3 (7) 12.0
 
Sept. 28, 2021, noon N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 14.0 ppb (13) N/A N/A 1.0 μg/m3 (5) 13.0
 
Sept. 28, 2021, 11 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 15.0 ppb (14) N/A N/A 0.6 μg/m3 (3) 14.0
 
Sept. 28, 2021, 10 a.m. N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A 0.6 μg/m3 (3) 3.0
 
Sept. 28, 2021, 9 a.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 16.0 ppb (15) N/A N/A 0.5 μg/m3 (3) 15.0
 
Sept. 28, 2021, 8 a.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 16.0 ppb (15) N/A N/A 1.0 μg/m3 (5) 15.0
 
Sept. 28, 2021, 7 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 15.0 ppb (14) N/A N/A 1.7 μg/m3 (8) 14.0
 
Sept. 28, 2021, 6 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 16.0 ppb (15) N/A N/A 2.9 μg/m3 (13) 15.0
 
Sept. 28, 2021, 5 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 16.0 ppb (15) N/A N/A 4.0 μg/m3 (17) 17.0
 
Sept. 28, 2021, 4 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 15.0 ppb (14) N/A N/A 4.6 μg/m3 (20) 20.0
 
Sept. 28, 2021, 3 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 16.0 ppb (15) N/A N/A 5.7 μg/m3 (24) 24.0
 
Sept. 28, 2021, 2 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 19.0 ppb (18) N/A N/A 5.5 μg/m3 (23) 23.0
 
Sept. 28, 2021, 1 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 20.0 ppb (19) N/A N/A 5.3 μg/m3 (23) 23.0
 
Sept. 28, 2021, midnight N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 3.9 μg/m3 (17) 20.0
 
Sept. 27, 2021, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 2.2 μg/m3 (10) 20.0
 
Sept. 27, 2021, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A 1.7 μg/m3 (8) 21.0
 
Sept. 27, 2021, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 1.7 μg/m3 (8) 23.0
 
Sept. 27, 2021, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 1.7 μg/m3 (8) 23.0
 
Sept. 27, 2021, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A 1.4 μg/m3 (6) 22.0
 
Sept. 27, 2021, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A 1.5 μg/m3 (7) 22.0
 
Sept. 27, 2021, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A 1.3 μg/m3 (6) 22.0
 
Sept. 27, 2021, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A 1.3 μg/m3 (6) 21.0
 
Sept. 27, 2021, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 1.7 μg/m3 (8) 20.0
 
Sept. 27, 2021, 2 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 20.0 ppb (19) N/A N/A 2.0 μg/m3 (9) 19.0
 
Sept. 27, 2021, 1 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 2.7 μg/m3 (12) 17.0
 
Sept. 27, 2021, noon N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 17.0 ppb (16) N/A N/A 3.4 μg/m3 (15) 16.0
 
Sept. 27, 2021, 11 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 3.6 μg/m3 (16) 17.0
 
Sept. 27, 2021, 10 a.m. N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A 4.2 μg/m3 (18) 18.0
 
Sept. 27, 2021, 9 a.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 18.0 ppb (17) N/A N/A 5.4 μg/m3 (23) 23.0
 
Sept. 27, 2021, 8 a.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 19.0 ppb (18) N/A N/A 6.8 μg/m3 (29) 29.0
 
Sept. 27, 2021, 7 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 19.0 ppb (18) N/A N/A 7.5 μg/m3 (32) 32.0
 
Sept. 27, 2021, 6 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 20.0 ppb (19) N/A N/A 6.4 μg/m3 (27) 27.0
 
Sept. 27, 2021, 5 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 20.0 ppb (19) N/A N/A 8.3 μg/m3 (35) 35.0
 
Sept. 27, 2021, 4 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 20.0 ppb (19) N/A N/A 9.1 μg/m3 (38) 38.0
 
Sept. 27, 2021, 3 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 7.5 μg/m3 (32) 32.0
 
Sept. 27, 2021, 2 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A 7.2 μg/m3 (31) 31.0
 
Sept. 27, 2021, 1 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A 5.9 μg/m3 (25) 25.0
 
Sept. 27, 2021, midnight N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A 5.3 μg/m3 (23) 23.0
 
Sept. 26, 2021, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A 4.6 μg/m3 (20) 22.0
 
Sept. 26, 2021, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 3.1 μg/m3 (13) 23.0
 
Sept. 26, 2021, 9 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 2.9 μg/m3 (13) 23.0
 
Sept. 26, 2021, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 2.9 μg/m3 (13) 23.0
 
Sept. 26, 2021, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A 2.1 μg/m3 (9) 21.0
 
Sept. 26, 2021, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 2.0 μg/m3 (9) 20.0
 
Sept. 26, 2021, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 17.0 ppb (16) N/A N/A 2.4 μg/m3 (10) 16.0
 
Sept. 26, 2021, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 15.0 ppb (14) N/A N/A 2.3 μg/m3 (10) 14.0
 
Sept. 26, 2021, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 12.0 ppb (12) N/A N/A 2.5 μg/m3 (11) 12.0
 
Sept. 26, 2021, 2 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 9.0 ppb (9) N/A N/A 4.5 μg/m3 (19) 19.0
 
Sept. 26, 2021, 1 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 11.0 ppb (11) N/A N/A 3.6 μg/m3 (16) 16.0
 
Sept. 26, 2021, noon N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 11.0 ppb (11) N/A N/A 3.1 μg/m3 (13) 13.0
 
Sept. 26, 2021, 11 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 10.0 ppb (10) N/A N/A 3.6 μg/m3 (16) 16.0
 
Sept. 26, 2021, 10 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 5.3 μg/m3 (23) 23.0
 
Sept. 26, 2021, 9 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 10.0 ppb (10) N/A N/A 6.4 μg/m3 (27) 27.0
 
Sept. 26, 2021, 8 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 11.0 ppb (11) N/A N/A 7.4 μg/m3 (31) 31.0
 
Sept. 26, 2021, 7 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 13.0 ppb (13) N/A N/A 8.9 μg/m3 (38) 38.0
 
Sept. 26, 2021, 6 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 16.0 ppb (15) N/A N/A 7.6 μg/m3 (32) 32.0
 
Sept. 26, 2021, 5 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 17.0 ppb (16) N/A N/A 6.7 μg/m3 (28) 28.0
 
Sept. 26, 2021, 4 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 6.5 μg/m3 (28) 28.0
 
Sept. 26, 2021, 3 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 17.0 ppb (16) N/A N/A 7.5 μg/m3 (32) 32.0
 
Sept. 26, 2021, 2 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 16.0 ppb (15) N/A N/A 8.4 μg/m3 (36) 36.0
 
Sept. 26, 2021, 1 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 20.0 ppb (19) N/A N/A 7.1 μg/m3 (30) 30.0
 
Sept. 26, 2021, midnight N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 6.3 μg/m3 (27) 27.0
 
Sept. 25, 2021, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A 4.6 μg/m3 (20) 21.0
 
Sept. 25, 2021, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A 3.7 μg/m3 (16) 21.0
 
Sept. 25, 2021, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A 5.1 μg/m3 (22) 22.0
 
Sept. 25, 2021, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A 3.6 μg/m3 (16) 22.0
 
Sept. 25, 2021, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A 1.4 μg/m3 (6) 22.0
 
Sept. 25, 2021, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 0.8 μg/m3 (4) 20.0
 
Sept. 25, 2021, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 0.6 μg/m3 (3) 20.0
 
Sept. 25, 2021, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 19.0 ppb (18) N/A N/A 0.5 μg/m3 (3) 18.0
 
Sept. 25, 2021, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 15.0 ppb (14) N/A N/A 0.8 μg/m3 (4) 14.0
 
Sept. 25, 2021, 2 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 12.0 ppb (12) N/A N/A 1.6 μg/m3 (7) 12.0
 
Sept. 25, 2021, 1 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 12.0 ppb (12) N/A N/A 1.6 μg/m3 (7) 12.0
 
Sept. 25, 2021, noon N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 13.0 ppb (13) N/A N/A 1.1 μg/m3 (5) 13.0
 
Sept. 25, 2021, 11 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 12.0 ppb (12) N/A N/A 1.3 μg/m3 (6) 12.0
 
Sept. 25, 2021, 10 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A N/A N/A N/A 1.3 μg/m3 (6) 6.0
 
Sept. 25, 2021, 9 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 13.0 ppb (13) N/A N/A 1.4 μg/m3 (6) 13.0
 
Sept. 25, 2021, 8 a.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 14.0 ppb (13) N/A N/A 1.6 μg/m3 (7) 13.0
 
Sept. 25, 2021, 7 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 13.0 ppb (13) N/A N/A 3.8 μg/m3 (16) 16.0
 
Sept. 25, 2021, 6 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 14.0 ppb (13) N/A N/A 2.8 μg/m3 (12) 13.0
 
Sept. 25, 2021, 5 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 15.0 ppb (14) N/A N/A 2.0 μg/m3 (9) 14.0
 
Sept. 25, 2021, 4 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 15.0 ppb (14) N/A N/A 1.4 μg/m3 (6) 14.0
 
Sept. 25, 2021, 3 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 14.0 ppb (13) N/A N/A 0.9 μg/m3 (4) 13.0
 
Sept. 25, 2021, 2 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 16.0 ppb (15) N/A N/A 0.5 μg/m3 (3) 15.0
 
Sept. 25, 2021, 1 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 17.0 ppb (16) N/A N/A 0.0 μg/m3 (0) 16.0
 
Sept. 25, 2021, midnight N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 19.0 ppb (18) N/A N/A 1.5 μg/m3 (7) 18.0
 
Sept. 24, 2021, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 19.0 ppb (18) N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 24, 2021, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 3.8 μg/m3 (16) 17.0
 
Sept. 24, 2021, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 8.1 μg/m3 (34) 34.0
 
Sept. 24, 2021, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 19.0 ppb (18) N/A N/A 4.1 μg/m3 (18) 18.0
 
Sept. 24, 2021, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 20.0 ppb (19) N/A N/A 1.0 μg/m3 (5) 19.0
 
Sept. 24, 2021, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 0.8 μg/m3 (4) 17.0
 
Sept. 24, 2021, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 0.7 μg/m3 (3) 17.0
 
Sept. 24, 2021, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 0.5 μg/m3 (3) 17.0
 
Sept. 24, 2021, 3 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 19.0 ppb (18) N/A N/A 0.1 μg/m3 (1) 18.0
 
Sept. 24, 2021, 2 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 0.1 μg/m3 (1) 17.0
 
Sept. 24, 2021, 1 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 16.0 ppb (15) N/A N/A 0.1 μg/m3 (1) 15.0
 
Sept. 24, 2021, noon N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 15.0 ppb (14) N/A N/A 0.2 μg/m3 (1) 14.0
 
Sept. 24, 2021, 11 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 13.0 ppb (13) N/A N/A 0.9 μg/m3 (4) 13.0
 
Sept. 24, 2021, 10 a.m. N/A N/A N/A 0.0 ppb (0) N/A N/A N/A N/A N/A 2.8 μg/m3 (12) 12.0
 
Sept. 24, 2021, 9 a.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 14.0 ppb (13) N/A N/A 6.4 μg/m3 (27) 27.0
 
Sept. 24, 2021, 8 a.m. N/A N/A N/A 0.0 ppb (0) N/A N/A 14.0 ppb (13) N/A N/A 5.9 μg/m3 (25) 25.0
 
Sept. 24, 2021, 7 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 15.0 ppb (14) N/A N/A 2.7 μg/m3 (12) 14.0
 
Sept. 24, 2021, 6 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 15.0 ppb (14) N/A N/A 0.6 μg/m3 (3) 14.0
 
Sept. 24, 2021, 5 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 16.0 ppb (15) N/A N/A 0.4 μg/m3 (2) 15.0
 
Sept. 24, 2021, 4 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 17.0 ppb (16) N/A N/A 0.4 μg/m3 (2) 16.0
 
Sept. 24, 2021, 3 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 2.6 μg/m3 (11) 17.0
 
Sept. 24, 2021, 2 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 19.0 ppb (18) N/A N/A 0.5 μg/m3 (3) 18.0
 
Sept. 24, 2021, 1 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 20.0 ppb (19) N/A N/A 7.3 μg/m3 (31) 31.0
 
Sept. 24, 2021, midnight N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A 8.6 μg/m3 (36) 36.0
 
Sept. 23, 2021, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A 4.3 μg/m3 (18) 21.0
 
Sept. 23, 2021, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 12.8 μg/m3 (53) 53.0
 
Sept. 23, 2021, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 20.0 ppb (19) N/A N/A 13.6 μg/m3 (55) 55.0
 
Sept. 23, 2021, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 13.2 μg/m3 (54) 54.0
 
Sept. 23, 2021, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 22.7 μg/m3 (74) 74.0
 
Sept. 23, 2021, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 19.0 ppb (18) N/A N/A 4.1 μg/m3 (18) 18.0
 
Sept. 23, 2021, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 19.0 ppb (18) N/A N/A 3.7 μg/m3 (16) 18.0
 
Sept. 23, 2021, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 16.0 ppb (15) N/A N/A 3.3 μg/m3 (14) 15.0
 
Sept. 23, 2021, 3 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 12.0 ppb (12) N/A N/A 9.5 μg/m3 (40) 40.0
 
Sept. 23, 2021, 2 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 13.0 ppb (13) N/A N/A 11.9 μg/m3 (50) 50.0
 
Sept. 23, 2021, 1 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 12.0 ppb (12) N/A N/A 8.9 μg/m3 (38) 38.0
 
Sept. 23, 2021, noon N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 11.0 ppb (11) N/A N/A 17.1 μg/m3 (62) 62.0
 
Sept. 23, 2021, 11 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 12.0 ppb (12) N/A N/A 15.3 μg/m3 (58) 58.0
 
Sept. 23, 2021, 10 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A N/A N/A N/A 19.3 μg/m3 (67) 67.0
 
Sept. 23, 2021, 9 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A 14.0 ppb (13) N/A N/A 9.2 μg/m3 (39) 39.0
 
Sept. 23, 2021, 8 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 15.0 ppb (14) N/A N/A 7.1 μg/m3 (30) 30.0
 
Sept. 23, 2021, 7 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 15.0 ppb (14) N/A N/A 10.5 μg/m3 (44) 44.0
 
Sept. 23, 2021, 6 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 17.0 ppb (16) N/A N/A 7.3 μg/m3 (31) 31.0
 
Sept. 23, 2021, 5 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 17.0 ppb (16) N/A N/A 6.4 μg/m3 (27) 27.0
 
Sept. 23, 2021, 4 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 17.0 ppb (16) N/A N/A 6.7 μg/m3 (28) 28.0
 
Sept. 23, 2021, 3 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 19.0 ppb (18) N/A N/A 6.1 μg/m3 (26) 26.0
 
Sept. 23, 2021, 2 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 19.0 ppb (18) N/A N/A 5.8 μg/m3 (25) 25.0
 
Sept. 23, 2021, 1 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 20.0 ppb (19) N/A N/A 5.9 μg/m3 (25) 25.0
 
Sept. 23, 2021, midnight N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 19.0 ppb (18) N/A N/A 5.5 μg/m3 (23) 23.0
 
Sept. 22, 2021, 11 p.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 22, 2021, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 20.0 ppb (19) N/A N/A 5.2 μg/m3 (22) 22.0
 
Sept. 22, 2021, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 20.0 ppb (19) N/A N/A 4.1 μg/m3 (18) 19.0
 
Sept. 22, 2021, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 2.6 μg/m3 (11) 20.0
 
Sept. 22, 2021, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 19.0 ppb (18) N/A N/A 3.2 μg/m3 (14) 18.0
 
Sept. 22, 2021, 6 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 3.5 μg/m3 (15) 17.0
 
Sept. 22, 2021, 5 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 17.0 ppb (16) N/A N/A 2.9 μg/m3 (13) 16.0
 
Sept. 22, 2021, 4 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 17.0 ppb (16) N/A N/A 3.1 μg/m3 (13) 16.0
 
Sept. 22, 2021, 3 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 2.6 μg/m3 (11) 17.0
 
Sept. 22, 2021, 2 p.m. N/A N/A N/A 3.0 ppb (3) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 2.8 μg/m3 (12) 17.0
 
Sept. 22, 2021, 1 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 2.3 μg/m3 (10) 17.0
 
Sept. 22, 2021, noon N/A N/A N/A 4.0 ppb (4) N/A 0.0 ppb (0) 17.0 ppb (16) N/A N/A 2.3 μg/m3 (10) 16.0
 
Sept. 22, 2021, 11 a.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 17.0 ppb (16) N/A N/A 2.4 μg/m3 (10) 16.0
 
Sept. 22, 2021, 10 a.m. N/A N/A N/A 2.0 ppb (2) N/A N/A N/A N/A N/A 2.7 μg/m3 (12) 12.0
 
Sept. 22, 2021, 9 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 16.0 ppb (15) N/A N/A 2.6 μg/m3 (11) 15.0
 
Sept. 22, 2021, 8 a.m. N/A N/A N/A 1.0 ppb (1) N/A N/A 17.0 ppb (16) N/A N/A 2.7 μg/m3 (12) 16.0
 
Sept. 22, 2021, 7 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 16.0 ppb (15) N/A N/A 2.5 μg/m3 (11) 15.0
 
Sept. 22, 2021, 6 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 15.0 ppb (14) N/A N/A 2.5 μg/m3 (11) 14.0
 
Sept. 22, 2021, 5 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 15.0 ppb (14) N/A N/A 2.8 μg/m3 (12) 14.0
 
Sept. 22, 2021, 4 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 16.0 ppb (15) N/A N/A 3.2 μg/m3 (14) 15.0
 
Sept. 22, 2021, 3 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 16.0 ppb (15) N/A N/A 4.2 μg/m3 (18) 18.0
 
Sept. 22, 2021, 2 a.m. N/A N/A N/A 0.0 ppb (0) N/A 0.0 ppb (0) 16.0 ppb (15) N/A N/A 4.4 μg/m3 (19) 19.0
 
Sept. 22, 2021, 1 a.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 16.0 ppb (15) N/A N/A 4.2 μg/m3 (18) 18.0
 
Sept. 22, 2021, midnight N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 17.0 ppb (16) N/A N/A 3.1 μg/m3 (13) 16.0
 
Sept. 21, 2021, 11 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 17.0 ppb (16) N/A N/A 1.9 μg/m3 (8) 16.0
 
Sept. 21, 2021, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 17.0 ppb (16) N/A N/A 5.6 μg/m3 (24) 24.0
 
Sept. 21, 2021, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 1.0 μg/m3 (5) 17.0
 
Sept. 21, 2021, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 1.9 μg/m3 (8) 17.0
 
Sept. 21, 2021, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 16.0 ppb (15) N/A N/A 3.4 μg/m3 (15) 15.0
 
Sept. 21, 2021, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 16.0 ppb (15) N/A N/A 1.0 μg/m3 (5) 15.0
 
Sept. 21, 2021, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A 0.0 ppb (0) 15.0 ppb (14) N/A N/A 0.8 μg/m3 (4) 14.0