ID: 1438

AQSQID: 230031100

Site Name: Micmac

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

Updated: June 18, 2021, 5:51 a.m.

Location: Presque Isle (Sunset Loop), ME

Reporting: True, Located: True

Current AQI: 11.0

Presque Isle (Sunset Loop) ME, US: 46.6964, -68.033096

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
June 18, 2021, 4 a.m. 1.9 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 8.0 ppb (8) 0.13 ppb (2) N/A 2.6 μg/m3 (11) 11.0
 
June 18, 2021, 3 a.m. 1.5 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 7.0 ppb (7) 0.14 ppb (2) N/A 2.9 μg/m3 (13) 13.0
 
June 18, 2021, 2 a.m. 2.9 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 9.0 ppb (9) 0.14 ppb (2) N/A 3.5 μg/m3 (15) 15.0
 
June 18, 2021, 1 a.m. 4.8 ppb (5) 1.1 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 10.0 ppb (10) 0.16 ppb (3) N/A 8.1 μg/m3 (34) 34.0
 
June 18, 2021, midnight 1.6 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 19.0 ppb (18) 0.13 ppb (2) N/A 6.9 μg/m3 (29) 29.0
 
June 17, 2021, 11 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 24.0 ppb (23) 0.12 ppb (2) N/A 4.3 μg/m3 (18) 23.0
 
June 17, 2021, 10 p.m. 0.4 ppb (1) 0.2 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 21.0 ppb (20) 0.12 ppb (2) N/A 4.7 μg/m3 (20) 20.0
 
June 17, 2021, 9 p.m. 0.1 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 22.0 ppb (21) 0.12 ppb (2) N/A 3.9 μg/m3 (17) 21.0
 
June 17, 2021, 8 p.m. 0.1 ppb (1) 0.1 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 21.0 ppb (20) 0.12 ppb (2) N/A 2.8 μg/m3 (12) 20.0
 
June 17, 2021, 7 p.m. 0.3 ppb (1) 0.2 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 22.0 ppb (21) 0.11 ppb (2) N/A 3.5 μg/m3 (15) 21.0
 
June 17, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 2.5 μg/m3 (11) 21.0
 
June 17, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 1.6 μg/m3 (7) 21.0
 
June 17, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 6.3 μg/m3 (27) 27.0
 
June 17, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 5.2 μg/m3 (22) 22.0
 
June 17, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 2.8 μg/m3 (12) 19.0
 
June 17, 2021, 1 p.m. 0.3 ppb (1) 0.2 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 19.0 ppb (18) 0.13 ppb (2) N/A 2.7 μg/m3 (12) 18.0
 
June 17, 2021, noon 0.8 ppb (1) 0.4 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 18.0 ppb (17) 0.1 ppb (2) N/A 3.8 μg/m3 (16) 17.0
 
June 17, 2021, 11 a.m. 0.5 ppb (1) 0.3 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 18.0 ppb (17) 0.1 ppb (2) N/A 5.2 μg/m3 (22) 22.0
 
June 17, 2021, 10 a.m. 0.8 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 17.0 ppb (16) 0.1 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
June 17, 2021, 9 a.m. 0.8 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 14.0 ppb (13) 0.1 ppb (2) N/A 4.3 μg/m3 (18) 18.0
 
June 17, 2021, 8 a.m. 2.1 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 14.0 ppb (13) 0.1 ppb (2) N/A 3.4 μg/m3 (15) 15.0
 
June 17, 2021, 7 a.m. 1.8 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 15.0 ppb (14) 0.1 ppb (2) N/A 2.5 μg/m3 (11) 14.0
 
June 17, 2021, 6 a.m. 0.5 ppb (1) 0.1 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 16.0 ppb (15) 0.1 ppb (2) N/A 2.4 μg/m3 (10) 15.0
 
June 17, 2021, 5 a.m. 0.2 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 17.0 ppb (16) 0.1 ppb (2) N/A 2.3 μg/m3 (10) 16.0
 
June 17, 2021, 4 a.m. 0.2 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 18.0 ppb (17) 0.1 ppb (2) N/A 2.0 μg/m3 (9) 17.0
 
June 17, 2021, 3 a.m. 0.1 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 19.0 ppb (18) 0.1 ppb (2) N/A 1.8 μg/m3 (8) 18.0
 
June 17, 2021, 2 a.m. 0.2 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 20.0 ppb (19) 0.1 ppb (2) N/A 2.1 μg/m3 (9) 19.0
 
June 17, 2021, 1 a.m. 0.4 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 22.0 ppb (21) 0.11 ppb (2) N/A 4.4 μg/m3 (19) 21.0
 
June 17, 2021, midnight 0.3 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 26.0 ppb (25) 0.1 ppb (2) N/A 5.8 μg/m3 (25) 25.0
 
June 16, 2021, 11 p.m. 0.1 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 27.0 ppb (25) 0.1 ppb (2) N/A 1.2 μg/m3 (5) 25.0
 
June 16, 2021, 10 p.m. 0.3 ppb (1) 0.1 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 26.0 ppb (25) 0.11 ppb (2) N/A 4.0 μg/m3 (17) 25.0
 
June 16, 2021, 9 p.m. 0.3 ppb (1) 0.1 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 26.0 ppb (25) 0.1 ppb (2) N/A 8.1 μg/m3 (34) 34.0
 
June 16, 2021, 8 p.m. 0.4 ppb (1) 0.1 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 30.0 ppb (28) 0.11 ppb (2) N/A 6.5 μg/m3 (28) 28.0
 
June 16, 2021, 7 p.m. 0.3 ppb (1) 0.1 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 32.0 ppb (30) 0.1 ppb (2) N/A 3.3 μg/m3 (14) 30.0
 
June 16, 2021, 6 p.m. 0.6 ppb (1) 0.2 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 33.0 ppb (31) 0.1 ppb (2) N/A 3.8 μg/m3 (16) 31.0
 
June 16, 2021, 5 p.m. 0.4 ppb (1) 0.1 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 33.0 ppb (31) 0.1 ppb (2) N/A 2.4 μg/m3 (10) 31.0
 
June 16, 2021, 4 p.m. 0.6 ppb (1) 0.2 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 32.0 ppb (30) 0.1 ppb (2) N/A 1.4 μg/m3 (6) 30.0
 
June 16, 2021, 3 p.m. 0.3 ppb (1) 0.1 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 28.0 ppb (26) 0.1 ppb (2) N/A 0.6 μg/m3 (3) 26.0
 
June 16, 2021, 2 p.m. 1.3 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 26.0 ppb (25) 0.11 ppb (2) N/A 2.8 μg/m3 (12) 25.0
 
June 16, 2021, 1 p.m. 0.6 ppb (1) 0.2 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 26.0 ppb (25) 0.11 ppb (2) N/A 1.9 μg/m3 (8) 25.0
 
June 16, 2021, noon 0.9 ppb (1) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (23) 0.12 ppb (2) N/A 0.0 μg/m3 (0) 23.0
 
June 16, 2021, 11 a.m. 1.4 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 18.0 ppb (17) 0.12 ppb (2) N/A 2.8 μg/m3 (12) 17.0
 
June 16, 2021, 10 a.m. 1.0 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 19.0 ppb (18) 0.12 ppb (2) N/A 2.9 μg/m3 (13) 18.0
 
June 16, 2021, 9 a.m. 1.3 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 18.0 ppb (17) 0.12 ppb (2) N/A 3.6 μg/m3 (16) 17.0
 
June 16, 2021, 8 a.m. 1.1 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 19.0 ppb (18) 0.12 ppb (2) N/A 0.2 μg/m3 (1) 18.0
 
June 16, 2021, 7 a.m. 0.2 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 19.0 ppb (18) 0.13 ppb (2) N/A 2.1 μg/m3 (9) 18.0
 
June 16, 2021, 6 a.m. 0.5 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 19.0 ppb (18) 0.14 ppb (2) N/A 1.9 μg/m3 (8) 18.0
 
June 16, 2021, 5 a.m. 0.8 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 20.0 ppb (19) 0.14 ppb (2) N/A 3.3 μg/m3 (14) 19.0
 
June 16, 2021, 4 a.m. 0.7 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (23) 0.14 ppb (2) N/A -0.1 μg/m3 (0) 23.0
 
June 16, 2021, 3 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 21.0 ppb (20) 0.15 ppb (2) N/A 0.7 μg/m3 (3) 20.0
 
June 16, 2021, 2 a.m. 0.6 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (28) 0.14 ppb (2) N/A 2.7 μg/m3 (12) 28.0
 
June 16, 2021, 1 a.m. 0.9 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (35) 0.14 ppb (2) N/A 3.7 μg/m3 (16) 35.0
 
June 16, 2021, midnight 0.9 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 34.0 ppb (32) 0.14 ppb (2) N/A 0.6 μg/m3 (3) 32.0
 
June 15, 2021, 11 p.m. 0.4 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 30.0 ppb (28) 0.14 ppb (2) N/A 4.6 μg/m3 (20) 28.0
 
June 15, 2021, 10 p.m. 0.3 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 30.0 ppb (28) 0.14 ppb (2) N/A 3.5 μg/m3 (15) 28.0
 
June 15, 2021, 9 p.m. 0.3 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 26.0 ppb (25) 0.14 ppb (2) N/A 0.5 μg/m3 (3) 25.0
 
June 15, 2021, 8 p.m. 0.8 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 25.0 ppb (24) 0.14 ppb (2) N/A 4.7 μg/m3 (20) 24.0
 
June 15, 2021, 7 p.m. 1.1 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 28.0 ppb (26) 0.14 ppb (2) N/A 4.6 μg/m3 (20) 26.0
 
June 15, 2021, 6 p.m. 0.7 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 26.0 ppb (25) 0.14 ppb (2) N/A 2.2 μg/m3 (10) 25.0
 
June 15, 2021, 5 p.m. 0.8 ppb (1) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (23) 0.14 ppb (2) N/A 3.1 μg/m3 (13) 23.0
 
June 15, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 3.4 μg/m3 (15) 22.0
 
June 15, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 3.1 μg/m3 (13) 21.0
 
June 15, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 3.2 μg/m3 (14) 21.0
 
June 15, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 4.1 μg/m3 (18) 20.0
 
June 15, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.1 μg/m3 (5) 5.0
 
June 15, 2021, 11 a.m. 1.7 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A 0.14 ppb (2) N/A 4.0 μg/m3 (17) 17.0
 
June 15, 2021, 10 a.m. 1.4 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A 0.13 ppb (2) N/A 3.8 μg/m3 (16) 16.0
 
June 15, 2021, 9 a.m. 1.7 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.13 ppb (2) N/A 3.2 μg/m3 (14) 14.0
 
June 15, 2021, 8 a.m. 1.5 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.12 ppb (2) N/A 4.9 μg/m3 (21) 21.0
 
June 15, 2021, 7 a.m. 1.4 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A 0.11 ppb (2) N/A 4.2 μg/m3 (18) 18.0
 
June 15, 2021, 6 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A 0.11 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
June 15, 2021, 5 a.m. 0.8 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A 0.11 ppb (2) N/A 3.5 μg/m3 (15) 15.0
 
June 15, 2021, 4 a.m. 0.2 ppb (1) -0.1 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.11 ppb (2) N/A 0.0 μg/m3 (0) 2.0
 
June 15, 2021, 3 a.m. 0.2 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.11 ppb (2) N/A 2.5 μg/m3 (11) 11.0
 
June 15, 2021, 2 a.m. 0.1 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.11 ppb (2) N/A 5.1 μg/m3 (22) 22.0
 
June 15, 2021, 1 a.m. 0.1 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.11 ppb (2) N/A 5.1 μg/m3 (22) 22.0
 
June 15, 2021, midnight 0.0 ppb (0) -0.1 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.1 ppb (2) N/A 5.9 μg/m3 (25) 25.0
 
June 14, 2021, 11 p.m. 0.0 ppb (0) -0.1 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.1 ppb (2) N/A 9.3 μg/m3 (39) 39.0
 
June 14, 2021, 10 p.m. 0.1 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.1 ppb (2) N/A 5.0 μg/m3 (21) 21.0
 
June 14, 2021, 9 p.m. 0.2 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.11 ppb (2) N/A 9.9 μg/m3 (42) 42.0
 
June 14, 2021, 8 p.m. 0.3 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.12 ppb (2) N/A 3.9 μg/m3 (17) 17.0
 
June 14, 2021, 7 p.m. 0.5 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.13 ppb (2) N/A 5.9 μg/m3 (25) 25.0
 
June 14, 2021, 6 p.m. 0.8 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A 0.14 ppb (2) N/A 4.4 μg/m3 (19) 19.0
 
June 14, 2021, 5 p.m. 0.7 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A 0.15 ppb (2) N/A 4.6 μg/m3 (20) 20.0
 
June 14, 2021, 4 p.m. 1.1 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A 0.16 ppb (3) N/A 1.4 μg/m3 (6) 6.0
 
June 14, 2021, 3 p.m. 2.3 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 28.0 ppb (26) 0.17 ppb (3) N/A 11.4 μg/m3 (48) 48.0
 
June 14, 2021, 2 p.m. 1.9 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (27) 0.16 ppb (3) N/A 10.3 μg/m3 (43) 43.0
 
June 14, 2021, 1 p.m. 8.8 ppb (9) 4.4 ppb (5) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 27.0 ppb (25) 0.14 ppb (2) N/A 8.7 μg/m3 (37) 37.0
 
June 14, 2021, noon 3.3 ppb (4) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 27.0 ppb (25) 0.14 ppb (2) N/A 7.4 μg/m3 (31) 31.0
 
June 14, 2021, 11 a.m. 2.4 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 28.0 ppb (26) 0.12 ppb (2) N/A 7.1 μg/m3 (30) 30.0
 
June 14, 2021, 10 a.m. 4.0 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (21) 0.11 ppb (2) N/A 7.1 μg/m3 (30) 30.0
 
June 14, 2021, 9 a.m. 5.3 ppb (5) 0.5 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 16.0 ppb (15) 0.11 ppb (2) N/A 4.7 μg/m3 (20) 20.0
 
June 14, 2021, 8 a.m. 6.0 ppb (6) 0.2 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 13.0 ppb (13) 0.12 ppb (2) N/A 3.3 μg/m3 (14) 14.0
 
June 14, 2021, 7 a.m. 5.6 ppb (6) 0.3 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 11.0 ppb (11) 0.13 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
June 14, 2021, 6 a.m. 4.3 ppb (5) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 19.0 ppb (18) 0.12 ppb (2) N/A 4.0 μg/m3 (17) 18.0
 
June 14, 2021, 5 a.m. 5.3 ppb (5) 0.2 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 17.0 ppb (16) 0.13 ppb (2) N/A 0.8 μg/m3 (4) 16.0
 
June 14, 2021, 4 a.m. 3.9 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 10.0 ppb (10) 0.15 ppb (2) N/A 7.6 μg/m3 (32) 32.0
 
June 14, 2021, 3 a.m. 3.4 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 17.0 ppb (16) 0.11 ppb (2) N/A 6.7 μg/m3 (28) 28.0
 
June 14, 2021, 2 a.m. 6.5 ppb (7) 0.2 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 17.0 ppb (16) 0.13 ppb (2) N/A 9.1 μg/m3 (38) 38.0
 
June 14, 2021, 1 a.m. 5.8 ppb (6) 0.1 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 24.0 ppb (23) 0.14 ppb (2) N/A 8.2 μg/m3 (35) 35.0
 
June 14, 2021, midnight 3.6 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 29.0 ppb (27) 0.1 ppb (2) N/A 6.9 μg/m3 (29) 29.0
 
June 13, 2021, 11 p.m. 2.2 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (31) 0.1 ppb (2) N/A 6.8 μg/m3 (29) 31.0
 
June 13, 2021, 10 p.m. 0.7 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 36.0 ppb (34) 0.08 ppb (2) N/A 4.6 μg/m3 (20) 34.0
 
June 13, 2021, 9 p.m. 0.3 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 36.0 ppb (34) 0.08 ppb (2) N/A 3.1 μg/m3 (13) 34.0
 
June 13, 2021, 8 p.m. 0.1 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 36.0 ppb (34) 0.08 ppb (2) N/A 2.7 μg/m3 (12) 34.0
 
June 13, 2021, 7 p.m. 0.5 ppb (1) 0.1 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 35.0 ppb (33) 0.09 ppb (2) N/A 2.9 μg/m3 (13) 33.0
 
June 13, 2021, 6 p.m. 0.5 ppb (1) 0.1 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 36.0 ppb (34) 0.08 ppb (2) N/A 3.0 μg/m3 (13) 34.0
 
June 13, 2021, 5 p.m. 0.3 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 34.0 ppb (32) 0.09 ppb (2) N/A 1.8 μg/m3 (8) 32.0
 
June 13, 2021, 4 p.m. 0.3 ppb (1) 0.1 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 32.0 ppb (30) 0.09 ppb (2) N/A 2.4 μg/m3 (10) 30.0
 
June 13, 2021, 3 p.m. 0.7 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (31) 0.09 ppb (2) N/A 2.2 μg/m3 (10) 31.0
 
June 13, 2021, 2 p.m. 0.9 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (30) 0.09 ppb (2) N/A 2.5 μg/m3 (11) 30.0
 
June 13, 2021, 1 p.m. 1.4 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (27) 0.09 ppb (2) N/A 3.7 μg/m3 (16) 27.0
 
June 13, 2021, noon 1.8 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 25.0 ppb (24) 0.1 ppb (2) N/A 3.7 μg/m3 (16) 24.0
 
June 13, 2021, 11 a.m. 3.0 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 20.0 ppb (19) 0.11 ppb (2) N/A 5.5 μg/m3 (23) 23.0
 
June 13, 2021, 10 a.m. 3.6 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 18.0 ppb (17) 0.11 ppb (2) N/A 4.5 μg/m3 (19) 19.0
 
June 13, 2021, 9 a.m. 4.9 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 13.0 ppb (13) 0.12 ppb (2) N/A 4.4 μg/m3 (19) 19.0
 
June 13, 2021, 8 a.m. 2.7 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 10.0 ppb (10) 0.13 ppb (2) N/A 7.8 μg/m3 (33) 33.0
 
June 13, 2021, 7 a.m. 4.9 ppb (5) 0.5 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 13.0 ppb (13) 0.12 ppb (2) N/A 4.6 μg/m3 (20) 20.0
 
June 13, 2021, 6 a.m. 2.8 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 17.0 ppb (16) 0.11 ppb (2) N/A 4.2 μg/m3 (18) 18.0
 
June 13, 2021, 5 a.m. 4.8 ppb (5) 0.4 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 16.0 ppb (15) 0.12 ppb (2) N/A 3.6 μg/m3 (16) 16.0
 
June 13, 2021, 4 a.m. 4.5 ppb (5) 0.4 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 15.0 ppb (14) 0.12 ppb (2) N/A 2.7 μg/m3 (12) 14.0
 
June 13, 2021, 3 a.m. 5.7 ppb (6) 0.1 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 16.0 ppb (15) 0.12 ppb (2) N/A 5.7 μg/m3 (24) 24.0
 
June 13, 2021, 2 a.m. 3.1 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (21) 0.13 ppb (2) N/A 8.7 μg/m3 (37) 37.0
 
June 13, 2021, 1 a.m. 3.6 ppb (4) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 29.0 ppb (27) 0.12 ppb (2) N/A 13.1 μg/m3 (54) 54.0
 
June 13, 2021, midnight 1.3 ppb (2) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (37) 0.1 ppb (2) N/A 5.6 μg/m3 (24) 37.0
 
June 12, 2021, 11 p.m. 0.7 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 42.0 ppb (39) 0.11 ppb (2) N/A 4.7 μg/m3 (20) 39.0
 
June 12, 2021, 10 p.m. 0.5 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 42.0 ppb (39) 0.11 ppb (2) N/A 2.7 μg/m3 (12) 39.0
 
June 12, 2021, 9 p.m. 0.3 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 41.0 ppb (38) 0.11 ppb (2) N/A 3.3 μg/m3 (14) 38.0
 
June 12, 2021, 8 p.m. 0.4 ppb (1) 0.1 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 42.0 ppb (39) 0.09 ppb (2) N/A 3.1 μg/m3 (13) 39.0
 
June 12, 2021, 7 p.m. 0.8 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (38) 0.1 ppb (2) N/A 1.3 μg/m3 (6) 38.0
 
June 12, 2021, 6 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 37.0 ppb (35) 0.1 ppb (2) N/A 1.4 μg/m3 (6) 35.0
 
June 12, 2021, 5 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 36.0 ppb (34) 0.1 ppb (2) N/A 2.5 μg/m3 (11) 34.0
 
June 12, 2021, 4 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 36.0 ppb (34) 0.1 ppb (2) N/A 1.4 μg/m3 (6) 34.0
 
June 12, 2021, 3 p.m. 0.0 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 35.0 ppb (33) 0.1 ppb (2) N/A 1.5 μg/m3 (7) 33.0
 
June 12, 2021, 2 p.m. 0.1 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 34.0 ppb (32) 0.1 ppb (2) N/A -1.1 μg/m3 (0) 32.0
 
June 12, 2021, 1 p.m. 0.3 ppb (1) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 28.0 ppb (26) 0.12 ppb (2) N/A -2.7 μg/m3 (0) 26.0
 
June 12, 2021, noon 1.0 ppb (1) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 19.0 ppb (18) 0.13 ppb (2) N/A 1.2 μg/m3 (5) 18.0
 
June 12, 2021, 11 a.m. 1.1 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 15.0 ppb (14) 0.13 ppb (2) N/A 4.6 μg/m3 (20) 20.0
 
June 12, 2021, 10 a.m. 1.6 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 12.0 ppb (12) 0.17 ppb (3) N/A 4.6 μg/m3 (20) 20.0
 
June 12, 2021, 9 a.m. 3.3 ppb (4) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 7.0 ppb (7) 0.21 ppb (3) N/A 6.4 μg/m3 (27) 27.0
 
June 12, 2021, 8 a.m. 3.6 ppb (4) 1.1 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 5.0 ppb (5) 0.18 ppb (3) N/A 3.2 μg/m3 (14) 14.0
 
June 12, 2021, 7 a.m. 3.0 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 8.0 ppb (8) 0.19 ppb (3) N/A 4.2 μg/m3 (18) 18.0
 
June 12, 2021, 6 a.m. 3.2 ppb (4) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 11.0 ppb (11) 0.18 ppb (3) N/A 3.9 μg/m3 (17) 17.0
 
June 12, 2021, 5 a.m. 2.8 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 13.0 ppb (13) 0.17 ppb (3) N/A 5.3 μg/m3 (23) 23.0
 
June 12, 2021, 4 a.m. 3.2 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 17.0 ppb (16) 0.18 ppb (3) N/A 3.6 μg/m3 (16) 16.0
 
June 12, 2021, 3 a.m. 2.1 ppb (2) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 19.0 ppb (18) 0.18 ppb (3) N/A 6.2 μg/m3 (26) 26.0
 
June 12, 2021, 2 a.m. 4.8 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 19.0 ppb (18) 0.18 ppb (3) N/A 5.3 μg/m3 (23) 23.0
 
June 12, 2021, 1 a.m. 4.2 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 22.0 ppb (21) 0.19 ppb (3) N/A 9.5 μg/m3 (40) 40.0
 
June 12, 2021, midnight 3.6 ppb (4) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (25) 0.23 ppb (3) N/A 7.5 μg/m3 (32) 32.0
 
June 11, 2021, 11 p.m. 2.1 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (27) 0.19 ppb (3) N/A 7.5 μg/m3 (32) 32.0
 
June 11, 2021, 10 p.m. 1.2 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 31.0 ppb (29) 0.17 ppb (3) N/A 5.1 μg/m3 (22) 29.0
 
June 11, 2021, 9 p.m. 0.6 ppb (1) 0.2 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 31.0 ppb (29) 0.1 ppb (2) N/A 6.8 μg/m3 (29) 29.0
 
June 11, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 9.4 μg/m3 (40) 40.0
 
June 11, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 7.6 μg/m3 (32) 32.0
 
June 11, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 5.7 μg/m3 (24) 31.0
 
June 11, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 6.6 μg/m3 (28) 31.0
 
June 11, 2021, 4 p.m. 0.6 ppb (1) 0.2 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 31.0 ppb (29) 0.1 ppb (2) N/A 1.7 μg/m3 (8) 29.0
 
June 11, 2021, 3 p.m. 0.4 ppb (1) 0.1 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 28.0 ppb (26) 0.1 ppb (2) N/A 2.3 μg/m3 (10) 26.0
 
June 11, 2021, 2 p.m. 0.5 ppb (1) 0.1 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 28.0 ppb (26) 0.1 ppb (2) N/A -2.4 μg/m3 (0) 26.0
 
June 11, 2021, 1 p.m. 1.8 ppb (2) 0.5 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 20.0 ppb (19) 0.11 ppb (2) N/A 1.4 μg/m3 (6) 19.0
 
June 11, 2021, noon 4.2 ppb (4) 1.5 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.13 ppb (2) N/A 3.5 μg/m3 (15) 15.0
 
June 11, 2021, 11 a.m. 5.0 ppb (5) 2.3 ppb (3) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.12 ppb (2) N/A 3.2 μg/m3 (14) 14.0
 
June 11, 2021, 10 a.m. 4.4 ppb (5) 2.0 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.11 ppb (2) N/A 2.7 μg/m3 (12) 12.0
 
June 11, 2021, 9 a.m. 2.3 ppb (3) 0.8 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 7.0 ppb (7) 0.1 ppb (2) N/A 1.4 μg/m3 (6) 7.0
 
June 11, 2021, 8 a.m. 2.3 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 8.0 ppb (8) 0.11 ppb (2) N/A 2.6 μg/m3 (11) 11.0
 
June 11, 2021, 7 a.m. 1.6 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 9.0 ppb (9) 0.1 ppb (2) N/A 1.1 μg/m3 (5) 9.0
 
June 11, 2021, 6 a.m. 1.1 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 7.0 ppb (7) 0.11 ppb (2) N/A 1.7 μg/m3 (8) 8.0
 
June 11, 2021, 5 a.m. 0.9 ppb (1) 0.1 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 11.0 ppb (11) 0.11 ppb (2) N/A 2.6 μg/m3 (11) 11.0