ID: 1721

AQSQID: 230050029

Site Name: Portland - Deering Oaks

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

Updated: Jan. 20, 2021, 9:31 a.m.

Location: Portland (Parkside), ME

Reporting: True, Located: True

Current AQI: 46.0

Portland (Parkside) ME, US: 43.660248, -70.268967

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Jan. 20, 2021, 8 a.m. 44.5 ppb (42) 17.3 ppb (17) N/A 27.0 ppb (26) N/A 1.0 ppb (2) 1.0 ppb (1) N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 20, 2021, 7 a.m. 52.0 ppb (50) 23.8 ppb (23) N/A 28.0 ppb (27) N/A 1.0 ppb (2) 1.0 ppb (1) N/A N/A 14.0 μg/m3 (55) 55.0
 
Jan. 20, 2021, 6 a.m. 29.7 ppb (29) 7.7 ppb (8) N/A 22.0 ppb (21) N/A 0.0 ppb (0) 8.0 ppb (8) N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 20, 2021, 5 a.m. 15.8 ppb (15) 0.1 ppb (1) N/A 16.0 ppb (16) N/A 0.0 ppb (0) 15.0 ppb (14) N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 20, 2021, 4 a.m. 17.1 ppb (17) 0.2 ppb (1) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 16.0 ppb (15) N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 20, 2021, 3 a.m. 19.6 ppb (19) 0.8 ppb (1) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 15.0 ppb (14) N/A N/A 7.0 μg/m3 (30) 30.0
 
Jan. 20, 2021, 2 a.m. 18.7 ppb (18) 0.4 ppb (1) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 16.0 ppb (15) N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 20, 2021, 1 a.m. 8.0 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 28.0 ppb (26) N/A N/A 3.0 μg/m3 (13) 26.0
 
Jan. 20, 2021, midnight 10.7 ppb (11) 0.3 ppb (1) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 26.0 ppb (25) N/A N/A 3.0 μg/m3 (13) 25.0
 
Jan. 19, 2021, 11 p.m. 15.5 ppb (15) 0.0 ppb (0) N/A 15.0 ppb (15) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 3.0 μg/m3 (13) 20.0
 
Jan. 19, 2021, 10 p.m. 11.9 ppb (12) 0.6 ppb (1) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 26.0 ppb (25) N/A N/A 5.0 μg/m3 (21) 25.0
 
Jan. 19, 2021, 9 p.m. 10.4 ppb (10) 1.9 ppb (2) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 30.0 ppb (28) N/A N/A 7.0 μg/m3 (30) 30.0
 
Jan. 19, 2021, 8 p.m. 6.2 ppb (6) 0.9 ppb (1) N/A 5.0 ppb (5) N/A 1.0 ppb (2) 34.0 ppb (32) N/A N/A 4.0 μg/m3 (17) 32.0
 
Jan. 19, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 3.0 μg/m3 (13) 34.0
 
Jan. 19, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 2.0 μg/m3 (9) 34.0
 
Jan. 19, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 4.0 μg/m3 (17) 32.0
 
Jan. 19, 2021, 4 p.m. 4.4 ppb (5) 1.2 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 6.0 μg/m3 (25) 31.0
 
Jan. 19, 2021, 3 p.m. 5.5 ppb (6) 1.5 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 8.0 μg/m3 (34) 34.0
 
Jan. 19, 2021, 2 p.m. 12.7 ppb (12) 4.2 ppb (4) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 4.0 μg/m3 (17) 23.0
 
Jan. 19, 2021, 1 p.m. 15.9 ppb (15) 4.3 ppb (5) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 20.0 ppb (19) N/A N/A 3.0 μg/m3 (13) 19.0
 
Jan. 19, 2021, noon 35.9 ppb (34) 9.6 ppb (10) N/A 26.0 ppb (25) N/A 0.0 ppb (0) 3.0 ppb (3) N/A N/A 7.0 μg/m3 (30) 34.0
 
Jan. 19, 2021, 11 a.m. 25.9 ppb (25) 1.9 ppb (2) N/A 24.0 ppb (23) N/A 0.0 ppb (0) 5.0 ppb (5) N/A N/A 3.0 μg/m3 (13) 25.0
 
Jan. 19, 2021, 10 a.m. 20.1 ppb (19) 1.9 ppb (2) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 10.0 ppb (10) N/A N/A 7.0 μg/m3 (30) 30.0
 
Jan. 19, 2021, 9 a.m. 21.4 ppb (21) 1.4 ppb (2) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 8.0 ppb (8) N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 19, 2021, 8 a.m. 18.4 ppb (18) 2.1 ppb (2) N/A 16.0 ppb (16) N/A 0.0 ppb (0) 12.0 ppb (12) N/A N/A 3.0 μg/m3 (13) 18.0
 
Jan. 19, 2021, 7 a.m. 5.8 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 5.0 μg/m3 (21) 23.0
 
Jan. 19, 2021, 6 a.m. 6.0 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A 7.0 μg/m3 (30) 30.0
 
Jan. 19, 2021, 5 a.m. 6.9 ppb (7) 0.2 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 26.0 ppb (25) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 19, 2021, 4 a.m. 4.0 ppb (4) 0.2 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 29.0 ppb (27) N/A N/A 2.0 μg/m3 (9) 27.0
 
Jan. 19, 2021, 3 a.m. 4.8 ppb (5) 0.4 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 28.0 ppb (26) N/A N/A 1.0 μg/m3 (5) 26.0
 
Jan. 19, 2021, 2 a.m. 9.0 ppb (9) 0.4 ppb (1) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 2.0 μg/m3 (9) 23.0
 
Jan. 19, 2021, 1 a.m. 5.0 ppb (5) 0.2 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 29.0 ppb (27) N/A N/A 2.0 μg/m3 (9) 27.0
 
Jan. 19, 2021, midnight 4.8 ppb (5) 0.1 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 28.0 ppb (26) N/A N/A 2.0 μg/m3 (9) 26.0
 
Jan. 18, 2021, 11 p.m. 3.9 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 29.0 ppb (27) N/A N/A 3.0 μg/m3 (13) 27.0
 
Jan. 18, 2021, 10 p.m. 3.3 ppb (4) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A 2.0 μg/m3 (9) 28.0
 
Jan. 18, 2021, 9 p.m. 3.4 ppb (4) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 2.0 μg/m3 (9) 29.0
 
Jan. 18, 2021, 8 p.m. 2.8 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A 2.0 μg/m3 (9) 28.0
 
Jan. 18, 2021, 7 p.m. 3.8 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 28.0 ppb (26) N/A N/A 2.0 μg/m3 (9) 26.0
 
Jan. 18, 2021, 6 p.m. 2.6 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A 0.0 μg/m3 (0) 28.0
 
Jan. 18, 2021, 5 p.m. 3.1 ppb (3) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A -1.0 μg/m3 (0) 28.0
 
Jan. 18, 2021, 4 p.m. 3.0 ppb (3) 0.5 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 29.0 ppb (27) N/A N/A 0.0 μg/m3 (0) 27.0
 
Jan. 18, 2021, 3 p.m. 3.1 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 29.0 ppb (27) N/A N/A 2.0 μg/m3 (9) 27.0
 
Jan. 18, 2021, 2 p.m. 4.3 ppb (5) 1.7 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 26.0 ppb (25) N/A N/A 2.0 μg/m3 (9) 25.0
 
Jan. 18, 2021, 1 p.m. 6.1 ppb (6) 0.8 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A 3.0 μg/m3 (13) 22.0
 
Jan. 18, 2021, noon 5.3 ppb (5) 0.2 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A 5.0 μg/m3 (21) 22.0
 
Jan. 18, 2021, 11 a.m. 7.0 ppb (7) 0.1 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 20.0 ppb (19) N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 18, 2021, 10 a.m. 4.9 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A 4.0 μg/m3 (17) 24.0
 
Jan. 18, 2021, 9 a.m. 6.2 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 26.0 ppb (25) N/A N/A 2.0 μg/m3 (9) 25.0
 
Jan. 18, 2021, 8 a.m. 4.7 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 28.0 ppb (26) N/A N/A 3.0 μg/m3 (13) 26.0
 
Jan. 18, 2021, 7 a.m. 4.0 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A 4.0 μg/m3 (17) 28.0
 
Jan. 18, 2021, 6 a.m. 2.9 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (30) N/A N/A 5.0 μg/m3 (21) 30.0
 
Jan. 18, 2021, 5 a.m. 2.0 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 5.0 μg/m3 (21) 31.0
 
Jan. 18, 2021, 4 a.m. 2.2 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 6.0 μg/m3 (25) 29.0
 
Jan. 18, 2021, 3 a.m. 3.0 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 28.0 ppb (26) N/A N/A 6.0 μg/m3 (25) 26.0
 
Jan. 18, 2021, 2 a.m. 1.8 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 27.0 ppb (25) N/A N/A 7.0 μg/m3 (30) 30.0
 
Jan. 18, 2021, 1 a.m. 1.7 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (25) N/A N/A 2.0 μg/m3 (9) 25.0
 
Jan. 18, 2021, midnight 2.3 ppb (3) 0.1 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 25.0 ppb (24) N/A N/A 2.0 μg/m3 (9) 24.0
 
Jan. 17, 2021, 11 p.m. 1.9 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A 0.0 μg/m3 (0) 24.0
 
Jan. 17, 2021, 10 p.m. 2.7 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 24.0 ppb (23) N/A N/A 5.0 μg/m3 (21) 23.0
 
Jan. 17, 2021, 9 p.m. 2.9 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 17, 2021, 8 p.m. 2.9 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 24.0 ppb (23) N/A N/A 2.0 μg/m3 (9) 23.0
 
Jan. 17, 2021, 7 p.m. 2.5 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 26.0 ppb (25) N/A N/A 5.0 μg/m3 (21) 25.0
 
Jan. 17, 2021, 6 p.m. 2.3 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 26.0 ppb (25) N/A N/A 4.0 μg/m3 (17) 25.0
 
Jan. 17, 2021, 5 p.m. 2.6 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 26.0 ppb (25) N/A N/A 1.0 μg/m3 (5) 25.0
 
Jan. 17, 2021, 4 p.m. 2.4 ppb (3) 0.5 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 27.0 ppb (25) N/A N/A 0.0 μg/m3 (0) 25.0
 
Jan. 17, 2021, 3 p.m. 1.6 ppb (2) 0.3 ppb (1) N/A 1.0 ppb (1) N/A 1.0 ppb (2) 28.0 ppb (26) N/A N/A 3.0 μg/m3 (13) 26.0
 
Jan. 17, 2021, 2 p.m. 2.3 ppb (3) 0.3 ppb (1) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 27.0 ppb (25) N/A N/A 5.0 μg/m3 (21) 25.0
 
Jan. 17, 2021, 1 p.m. 2.9 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 27.0 ppb (25) N/A N/A 2.0 μg/m3 (9) 25.0
 
Jan. 17, 2021, noon 3.2 ppb (4) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 25.0 ppb (24) N/A N/A 2.0 μg/m3 (9) 24.0
 
Jan. 17, 2021, 11 a.m. 2.5 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 26.0 ppb (25) N/A N/A 2.0 μg/m3 (9) 25.0
 
Jan. 17, 2021, 10 a.m. 2.1 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 24.0 ppb (23) N/A N/A 2.0 μg/m3 (9) 23.0
 
Jan. 17, 2021, 9 a.m. 2.4 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 22.0 ppb (21) N/A N/A 3.0 μg/m3 (13) 21.0
 
Jan. 17, 2021, 8 a.m. 2.3 ppb (3) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 21.0 ppb (20) N/A N/A -1.0 μg/m3 (0) 20.0
 
Jan. 17, 2021, 7 a.m. 2.7 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 22.0 ppb (21) N/A N/A -1.0 μg/m3 (0) 21.0
 
Jan. 17, 2021, 6 a.m. 2.7 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 23.0 ppb (22) N/A N/A 1.0 μg/m3 (5) 22.0
 
Jan. 17, 2021, 5 a.m. 4.2 ppb (4) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 23.0 ppb (22) N/A N/A 1.0 μg/m3 (5) 22.0
 
Jan. 17, 2021, 4 a.m. 3.5 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 25.0 ppb (24) N/A N/A 2.0 μg/m3 (9) 24.0
 
Jan. 17, 2021, 3 a.m. 3.4 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 26.0 ppb (25) N/A N/A 2.0 μg/m3 (9) 25.0
 
Jan. 17, 2021, 2 a.m. 2.5 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 28.0 ppb (26) N/A N/A 3.0 μg/m3 (13) 26.0
 
Jan. 17, 2021, 1 a.m. 3.3 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 29.0 ppb (27) N/A N/A 4.0 μg/m3 (17) 27.0
 
Jan. 17, 2021, midnight 9.0 ppb (9) 0.5 ppb (1) N/A 9.0 ppb (9) N/A 1.0 ppb (2) 31.0 ppb (29) N/A N/A 6.0 μg/m3 (25) 29.0
 
Jan. 16, 2021, 11 p.m. 7.3 ppb (7) 0.6 ppb (1) N/A 7.0 ppb (7) N/A 1.0 ppb (2) 36.0 ppb (34) N/A N/A 7.0 μg/m3 (30) 34.0
 
Jan. 16, 2021, 10 p.m. 5.2 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (2) 40.0 ppb (38) N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 16, 2021, 9 p.m. 3.5 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (2) 40.0 ppb (38) N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 16, 2021, 8 p.m. 2.7 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (37) N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 16, 2021, 7 p.m. 4.1 ppb (4) 1.4 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 38.0 ppb (36) N/A N/A 7.0 μg/m3 (30) 36.0
 
Jan. 16, 2021, 6 p.m. 3.4 ppb (4) 1.1 ppb (2) N/A 2.0 ppb (2) N/A 1.0 ppb (2) 35.0 ppb (33) N/A N/A 6.0 μg/m3 (25) 33.0
 
Jan. 16, 2021, 5 p.m. 3.0 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 6.0 μg/m3 (25) 31.0
 
Jan. 16, 2021, 4 p.m. 2.3 ppb (3) 0.9 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 5.0 μg/m3 (21) 31.0
 
Jan. 16, 2021, 3 p.m. 2.6 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 6.0 μg/m3 (25) 31.0
 
Jan. 16, 2021, 2 p.m. 3.0 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (30) N/A N/A 5.0 μg/m3 (21) 30.0
 
Jan. 16, 2021, 1 p.m. 2.2 ppb (3) 0.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (30) N/A N/A 4.0 μg/m3 (17) 30.0
 
Jan. 16, 2021, noon 2.9 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (30) N/A N/A 5.0 μg/m3 (21) 30.0
 
Jan. 16, 2021, 11 a.m. 3.0 ppb (3) 0.3 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 4.0 μg/m3 (17) 31.0
 
Jan. 16, 2021, 10 a.m. 4.3 ppb (5) 0.1 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 35.0 ppb (33) N/A N/A 5.0 μg/m3 (21) 33.0
 
Jan. 16, 2021, 9 a.m. 3.4 ppb (4) 0.1 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 35.0 ppb (33) N/A N/A 6.0 μg/m3 (25) 33.0
 
Jan. 16, 2021, 8 a.m. 3.5 ppb (4) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 3.0 μg/m3 (13) 32.0
 
Jan. 16, 2021, 7 a.m. 2.8 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 3.0 μg/m3 (13) 32.0
 
Jan. 16, 2021, 6 a.m. 3.9 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 33.0 ppb (31) N/A N/A 3.0 μg/m3 (13) 31.0
 
Jan. 16, 2021, 5 a.m. 4.4 ppb (5) 0.2 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A 4.0 μg/m3 (17) 28.0
 
Jan. 16, 2021, 4 a.m. 6.7 ppb (7) 0.4 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2021, 3 a.m. 6.9 ppb (7) 0.6 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 7.0 μg/m3 (30) 30.0
 
Jan. 16, 2021, 2 a.m. 8.5 ppb (9) 1.3 ppb (2) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 22.0 ppb (21) N/A N/A 7.0 μg/m3 (30) 30.0
 
Jan. 16, 2021, 1 a.m. 7.1 ppb (7) 1.3 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 26.0 ppb (25) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 16, 2021, midnight 7.4 ppb (7) 1.8 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 27.0 ppb (25) N/A N/A 7.0 μg/m3 (30) 30.0
 
Jan. 15, 2021, 11 p.m. 8.7 ppb (9) 2.4 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 27.0 ppb (25) N/A N/A 7.0 μg/m3 (30) 30.0
 
Jan. 15, 2021, 10 p.m. 10.0 ppb (10) 2.7 ppb (3) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 26.0 ppb (25) N/A N/A 4.0 μg/m3 (17) 25.0
 
Jan. 15, 2021, 9 p.m. 10.6 ppb (10) 2.7 ppb (3) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 27.0 ppb (25) N/A N/A 7.0 μg/m3 (30) 30.0
 
Jan. 15, 2021, 8 p.m. 7.5 ppb (8) 1.7 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A 6.0 μg/m3 (25) 28.0
 
Jan. 15, 2021, 7 p.m. 7.9 ppb (8) 2.6 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 30.0 ppb (28) N/A N/A 4.0 μg/m3 (17) 28.0
 
Jan. 15, 2021, 6 p.m. 6.1 ppb (6) 2.3 ppb (3) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 31.0 ppb (29) N/A N/A 6.0 μg/m3 (25) 29.0
 
Jan. 15, 2021, 5 p.m. 9.2 ppb (9) 3.5 ppb (4) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 29.0 ppb (27) N/A N/A 4.0 μg/m3 (17) 27.0
 
Jan. 15, 2021, 4 p.m. 7.4 ppb (7) 3.0 ppb (3) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 27.0 ppb (25) N/A N/A 5.0 μg/m3 (21) 25.0
 
Jan. 15, 2021, 3 p.m. 9.8 ppb (10) 4.1 ppb (4) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 8.0 μg/m3 (34) 34.0
 
Jan. 15, 2021, 2 p.m. 12.8 ppb (13) 5.3 ppb (5) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 15, 2021, 1 p.m. 16.4 ppb (16) 4.8 ppb (5) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 14.0 ppb (13) N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 15, 2021, noon 17.8 ppb (17) 4.0 ppb (4) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 10.0 ppb (10) N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 15, 2021, 11 a.m. 15.1 ppb (15) 2.7 ppb (3) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 12.0 ppb (12) N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 15, 2021, 10 a.m. 9.6 ppb (10) 1.1 ppb (2) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 16.0 ppb (15) N/A N/A 13.0 μg/m3 (53) 53.0
 
Jan. 15, 2021, 9 a.m. 12.8 ppb (13) 0.4 ppb (1) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 11.0 ppb (11) N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 15, 2021, 8 a.m. 11.0 ppb (11) 0.2 ppb (1) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 12.0 ppb (12) N/A N/A 13.0 μg/m3 (53) 53.0
 
Jan. 15, 2021, 7 a.m. 12.1 ppb (12) 0.3 ppb (1) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 11.0 ppb (11) N/A N/A 16.0 μg/m3 (60) 60.0
 
Jan. 15, 2021, 6 a.m. 15.0 ppb (15) 0.5 ppb (1) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 10.0 ppb (10) N/A N/A 18.0 μg/m3 (64) 64.0
 
Jan. 15, 2021, 5 a.m. 9.7 ppb (10) 0.2 ppb (1) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 15.0 ppb (14) N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 15, 2021, 4 a.m. 11.9 ppb (12) 1.0 ppb (1) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 13.0 ppb (13) N/A N/A 17.0 μg/m3 (62) 62.0
 
Jan. 15, 2021, 3 a.m. 14.4 ppb (14) 1.3 ppb (2) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 11.0 ppb (11) N/A N/A 17.0 μg/m3 (62) 62.0
 
Jan. 15, 2021, 2 a.m. 13.6 ppb (13) 0.9 ppb (1) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 11.0 ppb (11) N/A N/A 21.0 μg/m3 (70) 70.0
 
Jan. 15, 2021, 1 a.m. 15.7 ppb (15) 1.8 ppb (2) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 11.0 ppb (11) N/A N/A 20.0 μg/m3 (68) 68.0
 
Jan. 15, 2021, midnight 16.5 ppb (16) 2.4 ppb (3) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 11.0 ppb (11) N/A N/A 16.0 μg/m3 (60) 60.0
 
Jan. 14, 2021, 11 p.m. 20.9 ppb (20) 5.3 ppb (5) N/A 16.0 ppb (16) N/A 1.0 ppb (2) 10.0 ppb (10) N/A N/A 17.0 μg/m3 (62) 62.0
 
Jan. 14, 2021, 10 p.m. 19.1 ppb (19) 4.6 ppb (5) N/A 14.0 ppb (14) N/A 0.0 ppb (0) 12.0 ppb (12) N/A N/A 22.0 μg/m3 (72) 72.0
 
Jan. 14, 2021, 9 p.m. 18.1 ppb (18) 3.5 ppb (4) N/A 15.0 ppb (15) N/A 1.0 ppb (2) 15.0 ppb (14) N/A N/A 22.0 μg/m3 (72) 72.0
 
Jan. 14, 2021, 8 p.m. 14.8 ppb (14) 2.6 ppb (3) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 15.0 μg/m3 (58) 58.0
 
Jan. 14, 2021, 7 p.m. 12.5 ppb (12) 2.1 ppb (2) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 19.0 ppb (18) N/A N/A 15.0 μg/m3 (58) 58.0
 
Jan. 14, 2021, 6 p.m. 14.7 ppb (14) 2.6 ppb (3) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 17.0 ppb (16) N/A N/A 16.0 μg/m3 (60) 60.0
 
Jan. 14, 2021, 5 p.m. 11.7 ppb (12) 1.7 ppb (2) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 18.0 ppb (17) N/A N/A 15.0 μg/m3 (58) 58.0
 
Jan. 14, 2021, 4 p.m. 15.8 ppb (15) 3.3 ppb (4) N/A 12.0 ppb (12) N/A 0.0 ppb (0) 14.0 ppb (13) N/A N/A 16.0 μg/m3 (60) 60.0
 
Jan. 14, 2021, 3 p.m. 17.2 ppb (17) 4.0 ppb (4) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 13.0 ppb (13) N/A N/A 16.0 μg/m3 (60) 60.0
 
Jan. 14, 2021, 2 p.m. 22.5 ppb (22) 5.9 ppb (6) N/A 17.0 ppb (17) N/A 0.0 ppb (0) 9.0 ppb (9) N/A N/A 20.0 μg/m3 (68) 68.0
 
Jan. 14, 2021, 1 p.m. 29.6 ppb (28) 9.3 ppb (9) N/A 20.0 ppb (19) N/A 1.0 ppb (2) 5.0 ppb (5) N/A N/A 25.0 μg/m3 (79) 79.0
 
Jan. 14, 2021, noon 41.9 ppb (40) 17.1 ppb (17) N/A 25.0 ppb (24) N/A 1.0 ppb (2) 1.0 ppb (1) N/A N/A 18.0 μg/m3 (64) 64.0
 
Jan. 14, 2021, 11 a.m. 48.2 ppb (46) 21.2 ppb (20) N/A 27.0 ppb (26) N/A 1.0 ppb (2) 1.0 ppb (1) N/A N/A 23.0 μg/m3 (74) 74.0
 
Jan. 14, 2021, 10 a.m. 28.6 ppb (27) 6.8 ppb (7) N/A 22.0 ppb (21) N/A 0.0 ppb (0) 4.0 ppb (4) N/A N/A 14.0 μg/m3 (55) 55.0
 
Jan. 14, 2021, 9 a.m. 13.1 ppb (13) 0.1 ppb (1) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 13.0 ppb (13) N/A N/A 15.0 μg/m3 (58) 58.0
 
Jan. 14, 2021, 8 a.m. 12.8 ppb (13) 0.1 ppb (1) N/A 13.0 ppb (13) N/A 0.0 ppb (0) 15.0 ppb (14) N/A N/A 14.0 μg/m3 (55) 55.0
 
Jan. 14, 2021, 7 a.m. 7.1 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 9.0 μg/m3 (38) 38.0
 
Jan. 14, 2021, 6 a.m. 7.0 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A 14.0 μg/m3 (55) 55.0
 
Jan. 14, 2021, 5 a.m. 7.4 ppb (7) 0.0 ppb (0) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A 5.0 μg/m3 (21) 22.0
 
Jan. 14, 2021, 4 a.m. 8.2 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A 8.0 μg/m3 (34) 34.0
 
Jan. 14, 2021, 3 a.m. 10.2 ppb (10) 0.1 ppb (1) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 14, 2021, 2 a.m. 7.9 ppb (8) 0.7 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A 4.0 μg/m3 (17) 24.0
 
Jan. 14, 2021, 1 a.m. 8.1 ppb (8) 0.9 ppb (1) N/A 7.0 ppb (7) N/A 0.0 ppb (0) 25.0 ppb (24) N/A N/A 6.0 μg/m3 (25) 25.0
 
Jan. 14, 2021, midnight 9.7 ppb (10) 1.8 ppb (2) N/A 8.0 ppb (8) N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 5.0 μg/m3 (21) 23.0
 
Jan. 13, 2021, 11 p.m. 11.0 ppb (11) 1.4 ppb (2) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 5.0 μg/m3 (21) 21.0
 
Jan. 13, 2021, 10 p.m. 13.3 ppb (13) 2.7 ppb (3) N/A 11.0 ppb (11) N/A 0.0 ppb (0) 21.0 ppb (20) N/A N/A 4.0 μg/m3 (17) 20.0
 
Jan. 13, 2021, 9 p.m. 13.4 ppb (13) 3.9 ppb (4) N/A 9.0 ppb (9) N/A 0.0 ppb (0) 23.0 ppb (22) N/A N/A 5.0 μg/m3 (21) 22.0
 
Jan. 13, 2021, 8 p.m. 7.9 ppb (8) 1.4 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 26.0 ppb (25) N/A N/A 5.0 μg/m3 (21) 25.0
 
Jan. 13, 2021, 7 p.m. 7.1 ppb (7) 1.7 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 29.0 ppb (27) N/A N/A 6.0 μg/m3 (25) 27.0
 
Jan. 13, 2021, 6 p.m. 6.6 ppb (7) 2.1 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 29.0 ppb (27) N/A N/A 1.0 μg/m3 (5) 27.0
 
Jan. 13, 2021, 5 p.m. 7.9 ppb (8) 2.3 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 27.0 ppb (25) N/A N/A 5.0 μg/m3 (21) 25.0
 
Jan. 13, 2021, 4 p.m. 13.6 ppb (13) 3.2 ppb (4) N/A 10.0 ppb (10) N/A 0.0 ppb (0) 24.0 ppb (23) N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 13, 2021, 3 p.m. 20.3 ppb (20) 5.3 ppb (5) N/A 15.0 ppb (15) N/A 1.0 ppb (2) 21.0 ppb (20) N/A N/A 13.0 μg/m3 (53) 53.0
 
Jan. 13, 2021, 2 p.m. 37.3 ppb (36) 12.3 ppb (12) N/A 25.0 ppb (24) N/A 1.0 ppb (2) 7.0 ppb (7) N/A N/A 11.0 μg/m3 (46) 46.0
 
Jan. 13, 2021, 1 p.m. 55.3 ppb (53) 25.8 ppb (25) N/A 29.0 ppb (28) N/A 1.0 ppb (2) 2.0 ppb (2) N/A N/A 11.0 μg/m3 (46) 53.0
 
Jan. 13, 2021, noon 48.4 ppb (46) 20.5 ppb (20) N/A 28.0 ppb (27) N/A 1.0 ppb (2) 3.0 ppb (3) N/A N/A 10.0 μg/m3 (42) 46.0
 
Jan. 13, 2021, 11 a.m. 22.0 ppb (21) 2.1 ppb (2) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 9.0 ppb (9) N/A N/A 10.0 μg/m3 (42) 42.0
 
Jan. 13, 2021, 10 a.m. 20.1 ppb (19) 0.7 ppb (1) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 8.0 ppb (8) N/A N/A 16.0 μg/m3 (60) 60.0
 
Jan. 13, 2021, 9 a.m. 13.6 ppb (13) 0.0 ppb (0) N/A 14.0 ppb (14) N/A 0.0 ppb (0) N/A N/A N/A 8.0 μg/m3 (34) 34.0