ID: 1721

AQSQID: 230050029

Site Name: Portland - Deering Oaks

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

Updated: Oct. 17, 2021, 3:03 a.m.

Location: Portland (Parkside), ME

Reporting: True, Located: True

Current AQI: 32.0

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
Oct. 17, 2021, 1 a.m. 1.2 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 34.0 ppb (32) N/A N/A 6.0 μg/m3 (25) 32.0
 
Oct. 17, 2021, midnight 1.5 ppb (2) 0.2 ppb (1) N/A 1.0 ppb (1) N/A N/A 34.0 ppb (32) N/A N/A 6.0 μg/m3 (25) 32.0
 
Oct. 16, 2021, 11 p.m. 2.0 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A N/A 34.0 ppb (32) N/A N/A 6.0 μg/m3 (25) 32.0
 
Oct. 16, 2021, 10 p.m. 3.5 ppb (4) 1.6 ppb (2) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (32) N/A N/A 8.0 μg/m3 (34) 34.0
 
Oct. 16, 2021, 9 p.m. 2.7 ppb (3) 1.1 ppb (2) N/A 2.0 ppb (2) N/A N/A 38.0 ppb (36) N/A N/A 12.0 μg/m3 (50) 50.0
 
Oct. 16, 2021, 8 p.m. 1.6 ppb (2) 0.4 ppb (1) N/A 1.0 ppb (1) N/A N/A 42.0 ppb (39) N/A N/A 8.0 μg/m3 (34) 39.0
 
Oct. 16, 2021, 7 p.m. 2.9 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A N/A 40.0 ppb (38) N/A N/A 4.0 μg/m3 (17) 38.0
 
Oct. 16, 2021, 6 p.m. 2.7 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 37.0 ppb (35) N/A N/A 7.0 μg/m3 (30) 35.0
 
Oct. 16, 2021, 5 p.m. 2.7 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 34.0 ppb (32) N/A N/A 7.0 μg/m3 (30) 32.0
 
Oct. 16, 2021, 4 p.m. 2.3 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A N/A 33.0 ppb (31) N/A N/A 8.0 μg/m3 (34) 34.0
 
Oct. 16, 2021, 3 p.m. 4.2 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A N/A 29.0 ppb (27) N/A N/A 8.0 μg/m3 (34) 34.0
 
Oct. 16, 2021, 2 p.m. 3.4 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A N/A 26.0 ppb (25) N/A N/A 7.0 μg/m3 (30) 30.0
 
Oct. 16, 2021, 1 p.m. 2.7 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A N/A 27.0 ppb (25) N/A N/A 8.0 μg/m3 (34) 34.0
 
Oct. 16, 2021, noon 6.2 ppb (6) 1.8 ppb (2) N/A 4.0 ppb (4) N/A N/A 25.0 ppb (24) N/A N/A 9.0 μg/m3 (38) 38.0
 
Oct. 16, 2021, 11 a.m. 3.4 ppb (4) 2.1 ppb (2) N/A 1.0 ppb (1) N/A N/A 27.0 ppb (25) N/A N/A 4.0 μg/m3 (17) 25.0
 
Oct. 16, 2021, 10 a.m. 1.9 ppb (2) 0.3 ppb (1) N/A 2.0 ppb (2) N/A N/A 27.0 ppb (25) N/A N/A 2.0 μg/m3 (9) 25.0
 
Oct. 16, 2021, 9 a.m. 1.4 ppb (2) 0.0 ppb (0) N/A 1.0 ppb (1) N/A N/A 27.0 ppb (25) N/A N/A 3.0 μg/m3 (13) 25.0
 
Oct. 16, 2021, 8 a.m. 2.7 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A N/A 25.0 ppb (24) N/A N/A 6.0 μg/m3 (25) 25.0
 
Oct. 16, 2021, 7 a.m. 1.5 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 27.0 ppb (25) N/A N/A 8.0 μg/m3 (34) 34.0
 
Oct. 16, 2021, 6 a.m. 1.6 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 28.0 ppb (26) N/A N/A 7.0 μg/m3 (30) 30.0
 
Oct. 16, 2021, 5 a.m. 2.7 ppb (3) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 27.0 ppb (25) N/A N/A 9.0 μg/m3 (38) 38.0
 
Oct. 16, 2021, 4 a.m. 3.1 ppb (3) 0.2 ppb (1) N/A 3.0 ppb (3) N/A N/A 27.0 ppb (25) N/A N/A 10.0 μg/m3 (42) 42.0
 
Oct. 16, 2021, 3 a.m. 3.2 ppb (4) 0.3 ppb (1) N/A 3.0 ppb (3) N/A N/A 26.0 ppb (25) N/A N/A 4.0 μg/m3 (17) 25.0
 
Oct. 16, 2021, 2 a.m. 6.8 ppb (7) 1.4 ppb (2) N/A 5.0 ppb (5) N/A N/A 23.0 ppb (22) N/A N/A 0.0 μg/m3 (0) 22.0
 
Oct. 16, 2021, 1 a.m. 3.7 ppb (4) 0.5 ppb (1) N/A 3.0 ppb (3) N/A N/A 25.0 ppb (24) N/A N/A 0.0 μg/m3 (0) 24.0
 
Oct. 16, 2021, midnight 4.6 ppb (5) 1.2 ppb (2) N/A 3.0 ppb (3) N/A N/A 24.0 ppb (23) N/A N/A 3.0 μg/m3 (13) 23.0
 
Oct. 15, 2021, 11 p.m. 4.3 ppb (5) 1.3 ppb (2) N/A 3.0 ppb (3) N/A N/A 23.0 ppb (22) N/A N/A 2.0 μg/m3 (9) 22.0
 
Oct. 15, 2021, 10 p.m. 4.7 ppb (5) 1.5 ppb (2) N/A 3.0 ppb (3) N/A N/A 24.0 ppb (23) N/A N/A 5.0 μg/m3 (21) 23.0
 
Oct. 15, 2021, 9 p.m. 4.2 ppb (4) 1.5 ppb (2) N/A 3.0 ppb (3) N/A N/A 24.0 ppb (23) N/A N/A 9.0 μg/m3 (38) 38.0
 
Oct. 15, 2021, 8 p.m. 3.3 ppb (4) 1.1 ppb (2) N/A 2.0 ppb (2) N/A N/A 25.0 ppb (24) N/A N/A 2.0 μg/m3 (9) 24.0
 
Oct. 15, 2021, 7 p.m. 4.1 ppb (4) 1.6 ppb (2) N/A 2.0 ppb (2) N/A N/A 24.0 ppb (23) N/A N/A 0.0 μg/m3 (0) 23.0
 
Oct. 15, 2021, 6 p.m. 2.8 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A N/A 26.0 ppb (25) N/A N/A 4.0 μg/m3 (17) 25.0
 
Oct. 15, 2021, 5 p.m. 3.5 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A N/A 24.0 ppb (23) N/A N/A 6.0 μg/m3 (25) 25.0
 
Oct. 15, 2021, 4 p.m. 4.8 ppb (5) 2.1 ppb (2) N/A 3.0 ppb (3) N/A N/A 23.0 ppb (22) N/A N/A 1.0 μg/m3 (5) 22.0
 
Oct. 15, 2021, 3 p.m. 4.6 ppb (5) 1.6 ppb (2) N/A 3.0 ppb (3) N/A N/A 23.0 ppb (22) N/A N/A 1.0 μg/m3 (5) 22.0
 
Oct. 15, 2021, 2 p.m. 6.7 ppb (7) 2.5 ppb (3) N/A 4.0 ppb (4) N/A N/A 22.0 ppb (21) N/A N/A 2.0 μg/m3 (9) 21.0
 
Oct. 15, 2021, 1 p.m. 6.0 ppb (6) 2.2 ppb (3) N/A 4.0 ppb (4) N/A N/A 21.0 ppb (20) N/A N/A 2.0 μg/m3 (9) 20.0
 
Oct. 15, 2021, noon 5.6 ppb (6) 1.7 ppb (2) N/A 4.0 ppb (4) N/A N/A 20.0 ppb (19) N/A N/A 1.0 μg/m3 (5) 19.0
 
Oct. 15, 2021, 11 a.m. 6.2 ppb (6) 2.0 ppb (2) N/A 4.0 ppb (4) N/A N/A 18.0 ppb (17) N/A N/A 1.0 μg/m3 (5) 17.0
 
Oct. 15, 2021, 10 a.m. 2.9 ppb (3) 1.1 ppb (2) N/A 2.0 ppb (2) N/A N/A 19.0 ppb (18) N/A N/A 4.0 μg/m3 (17) 18.0
 
Oct. 15, 2021, 9 a.m. 1.8 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 20.0 ppb (19) N/A N/A 5.0 μg/m3 (21) 21.0
 
Oct. 15, 2021, 8 a.m. 1.7 ppb (2) 0.2 ppb (1) N/A 2.0 ppb (2) N/A N/A 20.0 ppb (19) N/A N/A 4.0 μg/m3 (17) 19.0
 
Oct. 15, 2021, 7 a.m. 1.5 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A N/A 22.0 ppb (21) N/A N/A 8.0 μg/m3 (34) 34.0
 
Oct. 15, 2021, 6 a.m. 2.8 ppb (3) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 19.0 ppb (18) N/A N/A 14.0 μg/m3 (55) 55.0
 
Oct. 15, 2021, 5 a.m. 6.9 ppb (7) 0.1 ppb (1) N/A 7.0 ppb (7) N/A N/A 12.0 ppb (12) N/A N/A 9.0 μg/m3 (38) 38.0
 
Oct. 15, 2021, 4 a.m. 8.5 ppb (9) 0.1 ppb (1) N/A 8.0 ppb (8) N/A N/A 16.0 ppb (15) N/A N/A 7.0 μg/m3 (30) 30.0
 
Oct. 15, 2021, 3 a.m. 7.1 ppb (7) 0.2 ppb (1) N/A 7.0 ppb (7) N/A N/A 20.0 ppb (19) N/A N/A 6.0 μg/m3 (25) 25.0
 
Oct. 15, 2021, 2 a.m. 5.5 ppb (6) 0.3 ppb (1) N/A 5.0 ppb (5) N/A N/A 24.0 ppb (23) N/A N/A 7.0 μg/m3 (30) 30.0
 
Oct. 15, 2021, 1 a.m. 7.9 ppb (8) 1.2 ppb (2) N/A 7.0 ppb (7) N/A N/A 26.0 ppb (25) N/A N/A 8.0 μg/m3 (34) 34.0
 
Oct. 15, 2021, midnight 14.5 ppb (14) 1.3 ppb (2) N/A 13.0 ppb (13) N/A N/A 19.0 ppb (18) N/A N/A 9.0 μg/m3 (38) 38.0
 
Oct. 14, 2021, 11 p.m. 14.6 ppb (14) 0.1 ppb (1) N/A 15.0 ppb (15) N/A N/A 18.0 ppb (17) N/A N/A 11.0 μg/m3 (46) 46.0
 
Oct. 14, 2021, 10 p.m. 6.6 ppb (7) 0.2 ppb (1) N/A 6.0 ppb (6) N/A N/A 26.0 ppb (25) N/A N/A 7.0 μg/m3 (30) 30.0
 
Oct. 14, 2021, 9 p.m. 7.1 ppb (7) 0.9 ppb (1) N/A 6.0 ppb (6) N/A N/A 31.0 ppb (29) N/A N/A 6.0 μg/m3 (25) 29.0
 
Oct. 14, 2021, 8 p.m. 7.9 ppb (8) 1.9 ppb (2) N/A 6.0 ppb (6) N/A N/A 33.0 ppb (31) N/A N/A 6.0 μg/m3 (25) 31.0
 
Oct. 14, 2021, 7 p.m. 8.3 ppb (8) 2.3 ppb (3) N/A 6.0 ppb (6) N/A N/A 34.0 ppb (32) N/A N/A 6.0 μg/m3 (25) 32.0
 
Oct. 14, 2021, 6 p.m. 6.3 ppb (6) 1.6 ppb (2) N/A 5.0 ppb (5) N/A N/A 35.0 ppb (33) N/A N/A 6.0 μg/m3 (25) 33.0
 
Oct. 14, 2021, 5 p.m. 6.1 ppb (6) 1.7 ppb (2) N/A 4.0 ppb (4) N/A N/A 33.0 ppb (31) N/A N/A 4.0 μg/m3 (17) 31.0
 
Oct. 14, 2021, 4 p.m. 7.1 ppb (7) 2.3 ppb (3) N/A 5.0 ppb (5) N/A N/A 29.0 ppb (27) N/A N/A 3.0 μg/m3 (13) 27.0
 
Oct. 14, 2021, 3 p.m. 8.5 ppb (9) 3.0 ppb (3) N/A 6.0 ppb (6) N/A N/A 24.0 ppb (23) N/A N/A 0.0 μg/m3 (0) 23.0
 
Oct. 14, 2021, 2 p.m. 13.1 ppb (13) 5.0 ppb (5) N/A 8.0 ppb (8) N/A N/A 16.0 ppb (15) N/A N/A 4.0 μg/m3 (17) 17.0
 
Oct. 14, 2021, 1 p.m. 29.4 ppb (28) 16.0 ppb (16) N/A 13.0 ppb (13) N/A N/A 4.0 ppb (4) N/A N/A 7.0 μg/m3 (30) 30.0
 
Oct. 14, 2021, noon 34.8 ppb (33) 22.7 ppb (22) N/A 12.0 ppb (12) N/A N/A 0.0 ppb (0) N/A N/A 1.0 μg/m3 (5) 33.0
 
Oct. 14, 2021, 11 a.m. 25.8 ppb (25) 13.9 ppb (14) N/A 12.0 ppb (12) N/A N/A 0.0 ppb (0) N/A N/A 3.0 μg/m3 (13) 25.0
 
Oct. 14, 2021, 10 a.m. 14.8 ppb (14) 2.8 ppb (3) N/A 12.0 ppb (12) N/A N/A 0.0 ppb (0) N/A N/A 8.0 μg/m3 (34) 34.0
 
Oct. 14, 2021, 9 a.m. 11.4 ppb (11) 1.2 ppb (2) N/A 10.0 ppb (10) N/A N/A 3.0 ppb (3) N/A N/A 7.0 μg/m3 (30) 30.0
 
Oct. 14, 2021, 8 a.m. 8.9 ppb (9) 0.0 ppb (0) N/A 9.0 ppb (9) N/A N/A 6.0 ppb (6) N/A N/A 5.0 μg/m3 (21) 21.0
 
Oct. 14, 2021, 7 a.m. 9.7 ppb (10) 0.1 ppb (1) N/A 10.0 ppb (10) N/A N/A 9.0 ppb (9) N/A N/A 7.0 μg/m3 (30) 30.0
 
Oct. 14, 2021, 6 a.m. 15.9 ppb (15) 0.1 ppb (1) N/A 16.0 ppb (16) N/A N/A 7.0 ppb (7) N/A N/A 3.0 μg/m3 (13) 16.0
 
Oct. 14, 2021, 5 a.m. 17.0 ppb (17) 0.3 ppb (1) N/A 17.0 ppb (17) N/A N/A 10.0 ppb (10) N/A N/A 6.0 μg/m3 (25) 25.0
 
Oct. 14, 2021, 4 a.m. 20.5 ppb (20) 0.8 ppb (1) N/A 20.0 ppb (19) N/A N/A 13.0 ppb (13) N/A N/A 9.0 μg/m3 (38) 38.0
 
Oct. 14, 2021, 3 a.m. 9.3 ppb (9) 0.0 ppb (0) N/A 9.0 ppb (9) N/A N/A 25.0 ppb (24) N/A N/A 6.0 μg/m3 (25) 25.0
 
Oct. 14, 2021, 2 a.m. 9.8 ppb (10) 0.0 ppb (0) N/A 10.0 ppb (10) N/A N/A 29.0 ppb (27) N/A N/A 7.0 μg/m3 (30) 30.0
 
Oct. 14, 2021, 1 a.m. 4.5 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A N/A 39.0 ppb (37) N/A N/A 5.0 μg/m3 (21) 37.0
 
Oct. 14, 2021, midnight 4.5 ppb (5) 0.0 ppb (0) N/A 4.0 ppb (4) N/A N/A 41.0 ppb (38) N/A N/A 5.0 μg/m3 (21) 38.0
 
Oct. 13, 2021, 11 p.m. 3.6 ppb (4) 0.1 ppb (1) N/A 3.0 ppb (3) N/A N/A 45.0 ppb (42) N/A N/A 8.0 μg/m3 (34) 42.0
 
Oct. 13, 2021, 10 p.m. 7.5 ppb (8) 0.7 ppb (1) N/A 7.0 ppb (7) N/A N/A 44.0 ppb (41) N/A N/A 8.0 μg/m3 (34) 41.0
 
Oct. 13, 2021, 9 p.m. 8.4 ppb (8) 1.4 ppb (2) N/A 7.0 ppb (7) N/A N/A 42.0 ppb (39) N/A N/A 11.0 μg/m3 (46) 46.0
 
Oct. 13, 2021, 8 p.m. 6.1 ppb (6) 1.6 ppb (2) N/A 5.0 ppb (5) N/A N/A 43.0 ppb (40) N/A N/A 10.0 μg/m3 (42) 42.0
 
Oct. 13, 2021, 7 p.m. 5.0 ppb (5) 1.3 ppb (2) N/A 4.0 ppb (4) N/A N/A 40.0 ppb (38) N/A N/A 12.0 μg/m3 (50) 50.0
 
Oct. 13, 2021, 6 p.m. 4.6 ppb (5) 1.2 ppb (2) N/A 3.0 ppb (3) N/A N/A 36.0 ppb (34) N/A N/A 6.0 μg/m3 (25) 34.0
 
Oct. 13, 2021, 5 p.m. 6.4 ppb (7) 1.7 ppb (2) N/A 5.0 ppb (5) N/A N/A 29.0 ppb (27) N/A N/A 4.0 μg/m3 (17) 27.0
 
Oct. 13, 2021, 4 p.m. 16.7 ppb (16) 6.8 ppb (7) N/A 10.0 ppb (10) N/A N/A 19.0 ppb (18) N/A N/A 4.0 μg/m3 (17) 18.0
 
Oct. 13, 2021, 3 p.m. 17.4 ppb (17) 7.9 ppb (8) N/A 9.0 ppb (9) N/A N/A 14.0 ppb (13) N/A N/A 4.0 μg/m3 (17) 17.0
 
Oct. 13, 2021, 2 p.m. 19.0 ppb (18) 10.6 ppb (10) N/A 8.0 ppb (8) N/A N/A 7.0 ppb (7) N/A N/A 6.0 μg/m3 (25) 25.0
 
Oct. 13, 2021, 1 p.m. 19.6 ppb (19) 11.2 ppb (11) N/A 8.0 ppb (8) N/A N/A 4.0 ppb (4) N/A N/A 6.0 μg/m3 (25) 25.0
 
Oct. 13, 2021, noon 40.5 ppb (39) 27.2 ppb (26) N/A 13.0 ppb (13) N/A N/A 0.0 ppb (0) N/A N/A 6.0 μg/m3 (25) 39.0
 
Oct. 13, 2021, 11 a.m. 24.3 ppb (23) 10.7 ppb (11) N/A 14.0 ppb (14) N/A N/A 0.0 ppb (0) N/A N/A 10.0 μg/m3 (42) 42.0
 
Oct. 13, 2021, 10 a.m. 17.6 ppb (17) 5.7 ppb (6) N/A 12.0 ppb (12) N/A N/A 0.0 ppb (0) N/A N/A 4.0 μg/m3 (17) 17.0
 
Oct. 13, 2021, 9 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
 
Oct. 13, 2021, 8 a.m. 15.2 ppb (15) 2.8 ppb (3) N/A 12.0 ppb (12) N/A N/A 1.0 ppb (1) N/A N/A 4.0 μg/m3 (17) 17.0
 
Oct. 13, 2021, 7 a.m. 17.9 ppb (17) 3.6 ppb (4) N/A 14.0 ppb (14) N/A N/A 0.0 ppb (0) N/A N/A 6.0 μg/m3 (25) 25.0
 
Oct. 13, 2021, 6 a.m. 21.2 ppb (20) 5.1 ppb (5) N/A 16.0 ppb (16) N/A N/A 1.0 ppb (1) N/A N/A 8.0 μg/m3 (34) 34.0
 
Oct. 13, 2021, 5 a.m. 13.9 ppb (14) 1.3 ppb (2) N/A 13.0 ppb (13) N/A N/A 6.0 ppb (6) N/A N/A 4.0 μg/m3 (17) 17.0
 
Oct. 13, 2021, 4 a.m. 16.7 ppb (16) 0.5 ppb (1) N/A 16.0 ppb (16) N/A N/A 7.0 ppb (7) N/A N/A 4.0 μg/m3 (17) 17.0
 
Oct. 13, 2021, 3 a.m. 17.3 ppb (17) 0.1 ppb (1) N/A 17.0 ppb (17) N/A N/A 11.0 ppb (11) N/A N/A 9.0 μg/m3 (38) 38.0
 
Oct. 13, 2021, 2 a.m. 18.2 ppb (18) 0.3 ppb (1) N/A 18.0 ppb (17) N/A N/A 12.0 ppb (12) N/A N/A 13.0 μg/m3 (53) 53.0
 
Oct. 13, 2021, 1 a.m. 16.1 ppb (16) 0.0 ppb (0) N/A 16.0 ppb (16) N/A N/A 16.0 ppb (15) N/A N/A 6.0 μg/m3 (25) 25.0
 
Oct. 13, 2021, midnight 6.2 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A 31.0 ppb (29) N/A N/A 7.0 μg/m3 (30) 30.0
 
Oct. 12, 2021, 11 p.m. 6.1 ppb (6) 0.3 ppb (1) N/A 6.0 ppb (6) N/A N/A 31.0 ppb (29) N/A N/A 6.0 μg/m3 (25) 29.0
 
Oct. 12, 2021, 10 p.m. 4.6 ppb (5) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 34.0 ppb (32) N/A N/A 6.0 μg/m3 (25) 32.0
 
Oct. 12, 2021, 9 p.m. 6.0 ppb (6) 1.0 ppb (1) N/A 5.0 ppb (5) N/A N/A 34.0 ppb (32) N/A N/A 8.0 μg/m3 (34) 34.0
 
Oct. 12, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 5.0 μg/m3 (21) 31.0
 
Oct. 12, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 2.0 μg/m3 (9) 27.0
 
Oct. 12, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 4.0 μg/m3 (17) 21.0
 
Oct. 12, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 6.0 μg/m3 (25) 25.0
 
Oct. 12, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 6.0 μg/m3 (25) 25.0
 
Oct. 12, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A N/A 2.0 μg/m3 (9) 13.0
 
Oct. 12, 2021, 2 p.m. 12.2 ppb (12) 6.8 ppb (7) N/A 5.0 ppb (5) N/A N/A 6.0 ppb (6) N/A N/A 1.0 μg/m3 (5) 12.0
 
Oct. 12, 2021, 1 p.m. 18.7 ppb (18) 11.3 ppb (11) N/A 7.0 ppb (7) N/A N/A 2.0 ppb (2) N/A N/A 1.0 μg/m3 (5) 18.0
 
Oct. 12, 2021, noon 16.0 ppb (16) 8.4 ppb (8) N/A 8.0 ppb (8) N/A N/A 0.0 ppb (0) N/A N/A 2.0 μg/m3 (9) 16.0
 
Oct. 12, 2021, 11 a.m. 18.4 ppb (18) 8.5 ppb (9) N/A 10.0 ppb (10) N/A N/A 0.0 ppb (0) N/A N/A 2.0 μg/m3 (9) 18.0
 
Oct. 12, 2021, 10 a.m. 15.5 ppb (15) 4.6 ppb (5) N/A 11.0 ppb (11) N/A N/A 1.0 ppb (1) N/A N/A 3.0 μg/m3 (13) 15.0
 
Oct. 12, 2021, 9 a.m. 18.7 ppb (18) 6.8 ppb (7) N/A 12.0 ppb (12) N/A N/A 1.0 ppb (1) N/A N/A 5.0 μg/m3 (21) 21.0
 
Oct. 12, 2021, 8 a.m. 13.4 ppb (13) 1.4 ppb (2) N/A 12.0 ppb (12) N/A N/A 4.0 ppb (4) N/A N/A 6.0 μg/m3 (25) 25.0
 
Oct. 12, 2021, 7 a.m. 15.1 ppb (15) 2.1 ppb (2) N/A 13.0 ppb (13) N/A N/A 3.0 ppb (3) N/A N/A 3.0 μg/m3 (13) 15.0
 
Oct. 12, 2021, 6 a.m. 18.8 ppb (18) 3.4 ppb (4) N/A 15.0 ppb (15) N/A N/A 2.0 ppb (2) N/A N/A 1.0 μg/m3 (5) 18.0
 
Oct. 12, 2021, 5 a.m. 11.1 ppb (11) 1.0 ppb (1) N/A 10.0 ppb (10) N/A N/A 8.0 ppb (8) N/A N/A 2.0 μg/m3 (9) 11.0
 
Oct. 12, 2021, 4 a.m. 11.3 ppb (11) 0.8 ppb (1) N/A 11.0 ppb (11) N/A N/A 12.0 ppb (12) N/A N/A 6.0 μg/m3 (25) 25.0
 
Oct. 12, 2021, 3 a.m. 11.6 ppb (11) 0.9 ppb (1) N/A 11.0 ppb (11) N/A N/A 11.0 ppb (11) N/A N/A 8.0 μg/m3 (34) 34.0
 
Oct. 12, 2021, 2 a.m. 6.3 ppb (6) 0.4 ppb (1) N/A 6.0 ppb (6) N/A N/A 18.0 ppb (17) N/A N/A 6.0 μg/m3 (25) 25.0
 
Oct. 12, 2021, 1 a.m. 7.3 ppb (7) 0.2 ppb (1) N/A 7.0 ppb (7) N/A N/A 21.0 ppb (20) N/A N/A 5.0 μg/m3 (21) 21.0
 
Oct. 12, 2021, midnight 7.7 ppb (8) 0.3 ppb (1) N/A 7.0 ppb (7) N/A N/A 23.0 ppb (22) N/A N/A 4.0 μg/m3 (17) 22.0
 
Oct. 11, 2021, 11 p.m. 4.4 ppb (5) 0.1 ppb (1) N/A 4.0 ppb (4) N/A N/A 27.0 ppb (25) N/A N/A 3.0 μg/m3 (13) 25.0
 
Oct. 11, 2021, 10 p.m. 4.6 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A N/A 28.0 ppb (26) N/A N/A 5.0 μg/m3 (21) 26.0
 
Oct. 11, 2021, 9 p.m. 4.6 ppb (5) 1.5 ppb (2) N/A 3.0 ppb (3) N/A N/A 30.0 ppb (28) N/A N/A 2.0 μg/m3 (9) 28.0
 
Oct. 11, 2021, 8 p.m. 7.6 ppb (8) 3.3 ppb (4) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (27) N/A N/A 2.0 μg/m3 (9) 27.0
 
Oct. 11, 2021, 7 p.m. 6.4 ppb (7) 2.4 ppb (3) N/A 4.0 ppb (4) N/A N/A 30.0 ppb (28) N/A N/A 2.0 μg/m3 (9) 28.0
 
Oct. 11, 2021, 6 p.m. 6.1 ppb (6) 2.1 ppb (2) N/A 4.0 ppb (4) N/A N/A 32.0 ppb (30) N/A N/A 4.0 μg/m3 (17) 30.0
 
Oct. 11, 2021, 5 p.m. 8.2 ppb (8) 2.9 ppb (3) N/A 5.0 ppb (5) N/A N/A 28.0 ppb (26) N/A N/A 6.0 μg/m3 (25) 26.0
 
Oct. 11, 2021, 4 p.m. 8.4 ppb (8) 3.4 ppb (4) N/A 5.0 ppb (5) N/A N/A 24.0 ppb (23) N/A N/A 5.0 μg/m3 (21) 23.0
 
Oct. 11, 2021, 3 p.m. 5.4 ppb (6) 1.5 ppb (2) N/A 4.0 ppb (4) N/A N/A 23.0 ppb (22) N/A N/A 1.0 μg/m3 (5) 22.0
 
Oct. 11, 2021, 2 p.m. 8.8 ppb (9) 2.8 ppb (3) N/A 6.0 ppb (6) N/A N/A 14.0 ppb (13) N/A N/A 3.0 μg/m3 (13) 13.0
 
Oct. 11, 2021, 1 p.m. 9.0 ppb (9) 2.8 ppb (3) N/A 6.0 ppb (6) N/A N/A 12.0 ppb (12) N/A N/A 4.0 μg/m3 (17) 17.0
 
Oct. 11, 2021, noon 12.0 ppb (12) 4.0 ppb (4) N/A 8.0 ppb (8) N/A N/A 8.0 ppb (8) N/A N/A 0.0 μg/m3 (0) 12.0
 
Oct. 11, 2021, 11 a.m. 7.9 ppb (8) 1.6 ppb (2) N/A 6.0 ppb (6) N/A N/A 5.0 ppb (5) N/A N/A 2.0 μg/m3 (9) 9.0
 
Oct. 11, 2021, 10 a.m. 7.7 ppb (8) 1.2 ppb (2) N/A 6.0 ppb (6) N/A N/A 5.0 ppb (5) N/A N/A 4.0 μg/m3 (17) 17.0
 
Oct. 11, 2021, 9 a.m. 9.0 ppb (9) 1.2 ppb (2) N/A 8.0 ppb (8) N/A N/A 5.0 ppb (5) N/A N/A 2.0 μg/m3 (9) 9.0
 
Oct. 11, 2021, 8 a.m. 7.6 ppb (8) 0.4 ppb (1) N/A 7.0 ppb (7) N/A N/A 6.0 ppb (6) N/A N/A 2.0 μg/m3 (9) 9.0
 
Oct. 11, 2021, 7 a.m. 6.3 ppb (6) 0.7 ppb (1) N/A 6.0 ppb (6) N/A N/A 8.0 ppb (8) N/A N/A 4.0 μg/m3 (17) 17.0
 
Oct. 11, 2021, 6 a.m. 10.7 ppb (11) 1.3 ppb (2) N/A 9.0 ppb (9) N/A N/A 4.0 ppb (4) N/A N/A 5.0 μg/m3 (21) 21.0
 
Oct. 11, 2021, 5 a.m. 11.0 ppb (11) 1.2 ppb (2) N/A 10.0 ppb (10) N/A N/A 4.0 ppb (4) N/A N/A 3.0 μg/m3 (13) 13.0
 
Oct. 11, 2021, 4 a.m. 12.1 ppb (12) 1.0 ppb (1) N/A 11.0 ppb (11) N/A N/A 4.0 ppb (4) N/A N/A 5.0 μg/m3 (21) 21.0
 
Oct. 11, 2021, 3 a.m. 16.3 ppb (16) 2.3 ppb (3) N/A 14.0 ppb (14) N/A N/A 2.0 ppb (2) N/A N/A 6.0 μg/m3 (25) 25.0
 
Oct. 11, 2021, 2 a.m. 28.4 ppb (27) 10.4 ppb (10) N/A 18.0 ppb (17) N/A N/A 1.0 ppb (1) N/A N/A 7.0 μg/m3 (30) 30.0
 
Oct. 11, 2021, 1 a.m. 13.3 ppb (13) 0.2 ppb (1) N/A 13.0 ppb (13) N/A N/A 10.0 ppb (10) N/A N/A 8.0 μg/m3 (34) 34.0
 
Oct. 11, 2021, midnight 10.5 ppb (10) 0.2 ppb (1) N/A 10.0 ppb (10) N/A N/A 18.0 ppb (17) N/A N/A 10.0 μg/m3 (42) 42.0
 
Oct. 10, 2021, 11 p.m. 5.9 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A N/A 24.0 ppb (23) N/A N/A 8.0 μg/m3 (34) 34.0
 
Oct. 10, 2021, 10 p.m. 5.7 ppb (6) 0.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 27.0 ppb (25) N/A N/A 5.0 μg/m3 (21) 25.0
 
Oct. 10, 2021, 9 p.m. 4.4 ppb (5) 1.1 ppb (2) N/A 3.0 ppb (3) N/A N/A 31.0 ppb (29) N/A N/A 6.0 μg/m3 (25) 29.0
 
Oct. 10, 2021, 8 p.m. 4.0 ppb (4) 1.3 ppb (2) N/A 3.0 ppb (3) N/A N/A 32.0 ppb (30) N/A N/A 4.0 μg/m3 (17) 30.0
 
Oct. 10, 2021, 7 p.m. 4.9 ppb (5) 1.5 ppb (2) N/A 3.0 ppb (3) N/A N/A 29.0 ppb (27) N/A N/A 3.0 μg/m3 (13) 27.0
 
Oct. 10, 2021, 6 p.m. 5.3 ppb (5) 1.6 ppb (2) N/A 4.0 ppb (4) N/A N/A 29.0 ppb (27) N/A N/A 1.0 μg/m3 (5) 27.0
 
Oct. 10, 2021, 5 p.m. 4.8 ppb (5) 1.7 ppb (2) N/A 3.0 ppb (3) N/A N/A 25.0 ppb (24) N/A N/A 1.0 μg/m3 (5) 24.0
 
Oct. 10, 2021, 4 p.m. 3.5 ppb (4) 1.1 ppb (2) N/A 2.0 ppb (2) N/A N/A 19.0 ppb (18) N/A N/A 4.0 μg/m3 (17) 18.0
 
Oct. 10, 2021, 3 p.m. 4.9 ppb (5) 1.6 ppb (2) N/A 3.0 ppb (3) N/A N/A 14.0 ppb (13) N/A N/A 5.0 μg/m3 (21) 21.0
 
Oct. 10, 2021, 2 p.m. 5.9 ppb (6) 2.1 ppb (2) N/A 4.0 ppb (4) N/A N/A 10.0 ppb (10) N/A N/A 4.0 μg/m3 (17) 17.0
 
Oct. 10, 2021, 1 p.m. 5.2 ppb (5) 2.1 ppb (2) N/A 3.0 ppb (3) N/A N/A 9.0 ppb (9) N/A N/A 4.0 μg/m3 (17) 17.0
 
Oct. 10, 2021, noon 7.0 ppb (7) 2.3 ppb (3) N/A 5.0 ppb (5) N/A N/A 6.0 ppb (6) N/A N/A 0.0 μg/m3 (0) 7.0
 
Oct. 10, 2021, 11 a.m. 7.5 ppb (8) 1.2 ppb (2) N/A 6.0 ppb (6) N/A N/A 4.0 ppb (4) N/A N/A 4.0 μg/m3 (17) 17.0
 
Oct. 10, 2021, 10 a.m. 5.4 ppb (6) 0.4 ppb (1) N/A 5.0 ppb (5) N/A N/A 4.0 ppb (4) N/A N/A 3.0 μg/m3 (13) 13.0
 
Oct. 10, 2021, 9 a.m. 4.5 ppb (5) 0.2 ppb (1) N/A 4.0 ppb (4) N/A N/A 5.0 ppb (5) N/A N/A 1.0 μg/m3 (5) 5.0
 
Oct. 10, 2021, 8 a.m. 5.6 ppb (6) 0.2 ppb (1) N/A 5.0 ppb (5) N/A N/A 5.0 ppb (5) N/A N/A 4.0 μg/m3 (17) 17.0
 
Oct. 10, 2021, 7 a.m. 7.0 ppb (7) 0.1 ppb (1) N/A 7.0 ppb (7) N/A N/A 4.0 ppb (4) N/A N/A 8.0 μg/m3 (34) 34.0
 
Oct. 10, 2021, 6 a.m. 12.3 ppb (12) 0.8 ppb (1) N/A 11.0 ppb (11) N/A N/A 1.0 ppb (1) N/A N/A 6.0 μg/m3 (25) 25.0
 
Oct. 10, 2021, 5 a.m. 11.4 ppb (11) 0.0 ppb (0) N/A 11.0 ppb (11) N/A N/A 3.0 ppb (3) N/A N/A 6.0 μg/m3 (25) 25.0
 
Oct. 10, 2021, 4 a.m. 16.3 ppb (16) 2.4 ppb (3) N/A 14.0 ppb (14) N/A N/A 2.0 ppb (2) N/A N/A 8.0 μg/m3 (34) 34.0
 
Oct. 10, 2021, 3 a.m. 12.2 ppb (12) 0.7 ppb (1) N/A 12.0 ppb (12) N/A N/A 6.0 ppb (6) N/A N/A 10.0 μg/m3 (42) 42.0
 
Oct. 10, 2021, 2 a.m. 8.1 ppb (8) 0.8 ppb (1) N/A 7.0 ppb (7) N/A N/A 14.0 ppb (13) N/A N/A 10.0 μg/m3 (42) 42.0