AQSQID: 230050029

Site Name: Portland - Deering Oaks

Location: Portland (Parkside), ME

Reporting: True, Located: True

Current AQI: 59.0

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
Feb. 17, 2020, 7 p.m. 4.0 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 6.0 μg/m3 (25) 31.0
 
Feb. 17, 2020, 6 p.m. 4.0 ppb (4) 1.1 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 7.0 μg/m3 (29) 32.0
 
Feb. 17, 2020, 5 p.m. 4.2 ppb (4) 1.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 41.0 ppb (32) N/A N/A 9.0 μg/m3 (38) 38.0
 
Feb. 17, 2020, 4 p.m. 4.2 ppb (4) 1.3 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 10.0 μg/m3 (42) 42.0
 
Feb. 17, 2020, 3 p.m. 3.9 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 7.0 μg/m3 (29) 29.0
 
Feb. 17, 2020, 2 p.m. 5.8 ppb (5) 1.7 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 10.0 μg/m3 (42) 42.0
 
Feb. 17, 2020, 1 p.m. 9.7 ppb (9) 2.7 ppb (3) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 14.0 μg/m3 (54) 54.0
 
Feb. 17, 2020, noon 21.6 ppb (20) 5.0 ppb (5) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A 12.0 μg/m3 (50) 50.0
 
Feb. 17, 2020, 11 a.m. 30.0 ppb (28) 3.9 ppb (4) N/A 26.0 ppb (24) N/A 0.0 ppb (0) 7.0 ppb (5) N/A N/A 16.0 μg/m3 (59) 59.0
 
Feb. 17, 2020, 10 a.m. 41.3 ppb (38) 12.0 ppb (11) N/A 29.0 ppb (27) N/A 0.0 ppb (0) 4.0 ppb (3) N/A N/A 18.0 μg/m3 (63) 63.0
 
Feb. 17, 2020, 9 a.m. 15.1 ppb (14) 0.1 ppb (0) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A 14.0 μg/m3 (54) 54.0
 
Feb. 17, 2020, 8 a.m. 16.9 ppb (16) 0.5 ppb (0) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 17.0 ppb (13) N/A N/A 14.0 μg/m3 (54) 54.0
 
Feb. 17, 2020, 7 a.m. 20.4 ppb (19) 0.4 ppb (0) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 13.0 ppb (10) N/A N/A 15.0 μg/m3 (56) 56.0
 
Feb. 17, 2020, 6 a.m. 12.6 ppb (12) 0.0 ppb (0) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A 16.0 μg/m3 (59) 59.0
 
Feb. 17, 2020, 5 a.m. 14.1 ppb (13) 0.0 ppb (0) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 18.0 μg/m3 (63) 63.0
 
Feb. 17, 2020, 4 a.m. 15.8 ppb (15) 0.0 ppb (0) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 18.0 ppb (14) N/A N/A 15.0 μg/m3 (56) 56.0
 
Feb. 17, 2020, 3 a.m. 18.3 ppb (17) 1.0 ppb (1) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 18.0 ppb (14) N/A N/A 18.0 μg/m3 (63) 63.0
 
Feb. 17, 2020, 2 a.m. 26.1 ppb (24) 0.9 ppb (1) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A 14.0 μg/m3 (54) 54.0
 
Feb. 17, 2020, 1 a.m. 15.4 ppb (14) 0.2 ppb (0) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A 16.0 μg/m3 (59) 59.0
 
Feb. 17, 2020, midnight 11.9 ppb (11) 0.7 ppb (1) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 12.0 μg/m3 (50) 50.0
 
Feb. 16, 2020, 11 p.m. 13.3 ppb (12) 4.9 ppb (5) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 12.0 μg/m3 (50) 50.0
 
Feb. 16, 2020, 10 p.m. 9.8 ppb (9) 1.5 ppb (1) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 11.0 μg/m3 (46) 46.0
 
Feb. 16, 2020, 9 p.m. 4.7 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 12.0 μg/m3 (50) 50.0
 
Feb. 16, 2020, 8 p.m. 4.3 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 11.0 μg/m3 (46) 46.0
 
Feb. 16, 2020, 7 p.m. 3.5 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 8.0 μg/m3 (33) 33.0
 
Feb. 16, 2020, 6 p.m. 5.4 ppb (5) 1.3 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 8.0 μg/m3 (33) 33.0
 
Feb. 16, 2020, 5 p.m. 6.6 ppb (6) 1.8 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 8.0 μg/m3 (33) 33.0
 
Feb. 16, 2020, 4 p.m. 7.2 ppb (7) 1.8 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 11.0 μg/m3 (46) 46.0
 
Feb. 16, 2020, 3 p.m. 7.2 ppb (7) 1.8 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 11.0 μg/m3 (46) 46.0
 
Feb. 16, 2020, 2 p.m. 7.6 ppb (7) 2.2 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 8.0 μg/m3 (33) 33.0
 
Feb. 16, 2020, 1 p.m. 8.1 ppb (8) 1.1 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 8.0 μg/m3 (33) 33.0
 
Feb. 16, 2020, noon 8.1 ppb (8) 0.5 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 12.0 μg/m3 (50) 50.0
 
Feb. 16, 2020, 11 a.m. 6.7 ppb (6) 0.1 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 9.0 μg/m3 (38) 38.0
 
Feb. 16, 2020, 10 a.m. 5.3 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 11.0 μg/m3 (46) 46.0
 
Feb. 16, 2020, 9 a.m. 4.8 ppb (4) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 11.0 μg/m3 (46) 46.0
 
Feb. 16, 2020, 8 a.m. 5.0 ppb (5) 0.0 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 6.0 μg/m3 (25) 25.0
 
Feb. 16, 2020, 7 a.m. 6.2 ppb (6) 0.0 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 9.0 μg/m3 (38) 38.0
 
Feb. 16, 2020, 6 a.m. 8.3 ppb (8) 0.1 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 9.0 μg/m3 (38) 38.0
 
Feb. 16, 2020, 5 a.m. 8.4 ppb (8) 0.1 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 12.0 μg/m3 (50) 50.0
 
Feb. 16, 2020, 4 a.m. 7.8 ppb (7) 0.1 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 10.0 μg/m3 (42) 42.0
 
Feb. 16, 2020, 3 a.m. 9.0 ppb (8) 0.1 ppb (0) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 9.0 μg/m3 (38) 38.0
 
Feb. 16, 2020, 2 a.m. 12.9 ppb (12) 0.2 ppb (0) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 8.0 μg/m3 (33) 33.0
 
Feb. 16, 2020, 1 a.m. 20.0 ppb (19) 1.0 ppb (1) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A 10.0 μg/m3 (42) 42.0
 
Feb. 16, 2020, midnight 13.9 ppb (13) 0.3 ppb (0) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 11.0 μg/m3 (46) 46.0
 
Feb. 15, 2020, 11 p.m. 15.3 ppb (14) 1.1 ppb (1) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 10.0 μg/m3 (42) 42.0
 
Feb. 15, 2020, 10 p.m. 10.9 ppb (10) 1.1 ppb (1) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 9.0 μg/m3 (38) 38.0
 
Feb. 15, 2020, 9 p.m. 8.5 ppb (8) 1.6 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 7.0 μg/m3 (29) 29.0
 
Feb. 15, 2020, 8 p.m. 4.6 ppb (4) 1.4 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 8.0 μg/m3 (33) 33.0
 
Feb. 15, 2020, 7 p.m. 4.1 ppb (4) 1.4 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 10.0 μg/m3 (42) 42.0
 
Feb. 15, 2020, 6 p.m. 4.9 ppb (5) 1.8 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 7.0 μg/m3 (29) 29.0
 
Feb. 15, 2020, 5 p.m. 10.8 ppb (10) 4.4 ppb (4) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 7.0 μg/m3 (29) 29.0
 
Feb. 15, 2020, 4 p.m. 7.1 ppb (7) 2.6 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 6.0 μg/m3 (25) 28.0
 
Feb. 15, 2020, 3 p.m. 9.7 ppb (9) 4.0 ppb (4) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 10.0 μg/m3 (42) 42.0
 
Feb. 15, 2020, 2 p.m. 12.3 ppb (11) 5.1 ppb (5) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 13.0 μg/m3 (52) 52.0
 
Feb. 15, 2020, 1 p.m. 11.9 ppb (11) 4.0 ppb (4) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 11.0 μg/m3 (46) 46.0
 
Feb. 15, 2020, noon 20.2 ppb (19) 4.1 ppb (4) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 7.0 μg/m3 (29) 29.0
 
Feb. 15, 2020, 11 a.m. 14.8 ppb (14) 0.3 ppb (0) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 8.0 μg/m3 (33) 33.0
 
Feb. 15, 2020, 10 a.m. 19.5 ppb (18) 0.4 ppb (0) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 18.0 ppb (14) N/A N/A 15.0 μg/m3 (56) 56.0
 
Feb. 15, 2020, 9 a.m. 16.5 ppb (15) 0.2 ppb (0) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A 11.0 μg/m3 (46) 46.0
 
Feb. 15, 2020, 8 a.m. 8.9 ppb (8) 0.1 ppb (0) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 9.0 μg/m3 (38) 38.0
 
Feb. 15, 2020, 7 a.m. 7.8 ppb (7) 0.0 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 10.0 μg/m3 (42) 42.0
 
Feb. 15, 2020, 6 a.m. 4.5 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 10.0 μg/m3 (42) 42.0
 
Feb. 15, 2020, 5 a.m. 8.4 ppb (8) 0.3 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 11.0 μg/m3 (46) 46.0
 
Feb. 15, 2020, 4 a.m. 6.6 ppb (6) 0.2 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 11.0 μg/m3 (46) 46.0
 
Feb. 15, 2020, 3 a.m. 8.1 ppb (8) 0.3 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 10.0 μg/m3 (42) 42.0
 
Feb. 15, 2020, 2 a.m. 9.7 ppb (9) 0.6 ppb (1) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 5.0 μg/m3 (21) 24.0
 
Feb. 15, 2020, 1 a.m. 6.4 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 6.0 μg/m3 (25) 27.0
 
Feb. 15, 2020, midnight 5.2 ppb (5) 1.1 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 9.0 μg/m3 (38) 38.0
 
Feb. 14, 2020, 11 p.m. 6.5 ppb (6) 1.8 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 7.0 μg/m3 (29) 29.0
 
Feb. 14, 2020, 10 p.m. 6.2 ppb (6) 1.5 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 9.0 μg/m3 (38) 38.0
 
Feb. 14, 2020, 9 p.m. 4.7 ppb (4) 1.4 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 11.0 μg/m3 (46) 46.0
 
Feb. 14, 2020, 8 p.m. 5.5 ppb (5) 2.2 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 13.0 μg/m3 (52) 52.0
 
Feb. 14, 2020, 7 p.m. 4.2 ppb (4) 1.5 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 3.0 μg/m3 (12) 30.0
 
Feb. 14, 2020, 6 p.m. 4.6 ppb (4) 1.8 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 5.0 μg/m3 (21) 29.0
 
Feb. 14, 2020, 5 p.m. 5.2 ppb (5) 2.4 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 8.0 μg/m3 (33) 33.0
 
Feb. 14, 2020, 4 p.m. 4.0 ppb (4) 1.8 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 9.0 μg/m3 (38) 38.0
 
Feb. 14, 2020, 3 p.m. 4.8 ppb (4) 1.9 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 11.0 μg/m3 (46) 46.0
 
Feb. 14, 2020, 2 p.m. 4.9 ppb (5) 2.1 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 14.0 μg/m3 (54) 54.0
 
Feb. 14, 2020, 1 p.m. 5.7 ppb (5) 2.3 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 20.0 μg/m3 (67) 67.0
 
Feb. 14, 2020, noon 5.7 ppb (5) 1.8 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 16.0 μg/m3 (59) 59.0
 
Feb. 14, 2020, 11 a.m. 5.8 ppb (5) 1.2 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 11.0 μg/m3 (46) 46.0
 
Feb. 14, 2020, 10 a.m. 4.3 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 11.0 μg/m3 (46) 46.0
 
Feb. 14, 2020, 9 a.m. 3.8 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 10.0 μg/m3 (42) 42.0
 
Feb. 14, 2020, 8 a.m. 3.5 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 9.0 μg/m3 (38) 38.0
 
Feb. 14, 2020, 7 a.m. 5.6 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 8.0 μg/m3 (33) 33.0
 
Feb. 14, 2020, 6 a.m. 8.4 ppb (8) 0.2 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 10.0 μg/m3 (42) 42.0
 
Feb. 14, 2020, 5 a.m. 12.3 ppb (11) 0.6 ppb (1) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A 10.0 μg/m3 (42) 42.0
 
Feb. 14, 2020, 4 a.m. 10.7 ppb (10) 0.2 ppb (0) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 15.0 ppb (12) N/A N/A 11.0 μg/m3 (46) 46.0
 
Feb. 14, 2020, 3 a.m. 11.5 ppb (11) 0.3 ppb (0) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 13.0 ppb (10) N/A N/A 18.0 μg/m3 (63) 63.0
 
Feb. 14, 2020, 2 a.m. 21.7 ppb (20) 2.3 ppb (2) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 6.0 ppb (5) N/A N/A 15.0 μg/m3 (56) 56.0
 
Feb. 14, 2020, 1 a.m. 21.4 ppb (20) 1.7 ppb (2) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 7.0 ppb (5) N/A N/A 22.0 μg/m3 (71) 71.0
 
Feb. 14, 2020, midnight 23.1 ppb (21) 1.4 ppb (1) N/A 22.0 ppb (20) N/A 0.0 ppb (0) 7.0 ppb (5) N/A N/A 12.0 μg/m3 (50) 50.0
 
Feb. 13, 2020, 11 p.m. 20.5 ppb (19) 1.2 ppb (1) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A 17.0 μg/m3 (61) 61.0
 
Feb. 13, 2020, 10 p.m. 14.1 ppb (13) 0.7 ppb (1) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A 12.0 μg/m3 (50) 50.0
 
Feb. 13, 2020, 9 p.m. 10.2 ppb (9) 0.5 ppb (0) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A 8.0 μg/m3 (33) 33.0
 
Feb. 13, 2020, 8 p.m. 10.9 ppb (10) 1.5 ppb (1) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 20.0 ppb (15) N/A N/A 10.0 μg/m3 (42) 42.0
 
Feb. 13, 2020, 7 p.m. 11.5 ppb (11) 2.1 ppb (2) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 12.0 μg/m3 (50) 50.0
 
Feb. 13, 2020, 6 p.m. 14.7 ppb (14) 4.4 ppb (4) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 17.0 ppb (13) N/A N/A 9.0 μg/m3 (38) 38.0
 
Feb. 13, 2020, 5 p.m. 17.1 ppb (16) 4.9 ppb (5) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 15.0 ppb (12) N/A N/A 13.0 μg/m3 (52) 52.0
 
Feb. 13, 2020, 4 p.m. 21.9 ppb (20) 8.3 ppb (8) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 13.0 ppb (10) N/A N/A 10.0 μg/m3 (42) 42.0
 
Feb. 13, 2020, 3 p.m. 31.6 ppb (29) 12.9 ppb (12) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A 12.0 μg/m3 (50) 50.0
 
Feb. 13, 2020, 2 p.m. 27.5 ppb (25) 8.6 ppb (8) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 11.0 ppb (8) N/A N/A 13.0 μg/m3 (52) 52.0
 
Feb. 13, 2020, 1 p.m. 31.0 ppb (29) 7.9 ppb (7) N/A 23.0 ppb (21) N/A 0.0 ppb (0) 8.0 ppb (6) N/A N/A 11.0 μg/m3 (46) 46.0
 
Feb. 13, 2020, noon 16.0 ppb (15) 2.2 ppb (2) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A 8.0 μg/m3 (33) 33.0
 
Feb. 13, 2020, 11 a.m. 12.9 ppb (12) 1.5 ppb (1) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 18.0 ppb (14) N/A N/A 11.0 μg/m3 (46) 46.0
 
Feb. 13, 2020, 10 a.m. 16.2 ppb (15) 0.4 ppb (0) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 14.0 ppb (11) N/A N/A 14.0 μg/m3 (54) 54.0
 
Feb. 13, 2020, 9 a.m. 16.7 ppb (15) 1.4 ppb (1) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A 11.0 μg/m3 (46) 46.0
 
Feb. 13, 2020, 8 a.m. 11.1 ppb (10) 1.7 ppb (2) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 9.0 μg/m3 (38) 38.0
 
Feb. 13, 2020, 7 a.m. 12.0 ppb (11) 1.0 ppb (1) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 9.0 μg/m3 (38) 38.0
 
Feb. 13, 2020, 6 a.m. 10.1 ppb (9) 0.0 ppb (0) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 9.0 μg/m3 (38) 38.0
 
Feb. 13, 2020, 5 a.m. 11.2 ppb (10) 0.1 ppb (0) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 11.0 μg/m3 (46) 46.0
 
Feb. 13, 2020, 4 a.m. 12.3 ppb (11) 0.1 ppb (0) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 12.0 μg/m3 (50) 50.0
 
Feb. 13, 2020, 3 a.m. 14.7 ppb (14) 0.3 ppb (0) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 11.0 μg/m3 (46) 46.0
 
Feb. 13, 2020, 2 a.m. 12.5 ppb (12) 0.5 ppb (0) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 7.0 μg/m3 (29) 29.0
 
Feb. 13, 2020, 1 a.m. 6.9 ppb (6) 0.0 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 8.0 μg/m3 (33) 33.0
 
Feb. 13, 2020, midnight 15.8 ppb (15) 0.8 ppb (1) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 10.0 μg/m3 (42) 42.0
 
Feb. 12, 2020, 11 p.m. 17.5 ppb (16) 1.5 ppb (1) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 10.0 μg/m3 (42) 42.0
 
Feb. 12, 2020, 10 p.m. 23.3 ppb (22) 2.9 ppb (3) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 10.0 μg/m3 (42) 42.0
 
Feb. 12, 2020, 9 p.m. 11.8 ppb (11) 1.5 ppb (1) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 10.0 μg/m3 (42) 42.0
 
Feb. 12, 2020, 8 p.m. 4.0 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 5.0 μg/m3 (21) 28.0
 
Feb. 12, 2020, 7 p.m. 3.0 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 6.0 μg/m3 (25) 29.0
 
Feb. 12, 2020, 6 p.m. 3.0 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 5.0 μg/m3 (21) 29.0
 
Feb. 12, 2020, 5 p.m. 2.6 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 4.0 μg/m3 (17) 29.0
 
Feb. 12, 2020, 4 p.m. 2.8 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 6.0 μg/m3 (25) 28.0
 
Feb. 12, 2020, 3 p.m. 4.7 ppb (4) 1.4 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 9.0 μg/m3 (38) 38.0
 
Feb. 12, 2020, 2 p.m. 3.8 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 6.0 μg/m3 (25) 28.0
 
Feb. 12, 2020, 1 p.m. 6.3 ppb (6) 1.3 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 7.0 μg/m3 (29) 29.0
 
Feb. 12, 2020, noon 9.3 ppb (9) 1.1 ppb (1) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 8.0 μg/m3 (33) 33.0
 
Feb. 12, 2020, 11 a.m. 6.5 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 7.0 μg/m3 (29) 29.0
 
Feb. 12, 2020, 10 a.m. 9.1 ppb (8) 0.1 ppb (0) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 9.0 μg/m3 (38) 38.0
 
Feb. 12, 2020, 9 a.m. 8.7 ppb (8) 0.0 ppb (0) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A N/A N/A 8.0 μg/m3 (33) 33.0
 
Feb. 12, 2020, 8 a.m. 8.1 ppb (8) 0.0 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 7.0 μg/m3 (29) 29.0
 
Feb. 12, 2020, 7 a.m. 5.7 ppb (5) 0.1 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 8.0 μg/m3 (33) 33.0
 
Feb. 12, 2020, 6 a.m. 7.1 ppb (7) 0.1 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 18.0 ppb (14) N/A N/A 15.0 μg/m3 (56) 56.0
 
Feb. 12, 2020, 5 a.m. 5.6 ppb (5) 0.1 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 9.0 μg/m3 (38) 38.0
 
Feb. 12, 2020, 4 a.m. 5.7 ppb (5) 0.1 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 19.0 ppb (15) N/A N/A 11.0 μg/m3 (46) 46.0
 
Feb. 12, 2020, 3 a.m. 8.4 ppb (8) 0.5 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 15.0 ppb (12) N/A N/A 12.0 μg/m3 (50) 50.0
 
Feb. 12, 2020, 2 a.m. 12.4 ppb (11) 0.7 ppb (1) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A 18.0 μg/m3 (63) 63.0
 
Feb. 12, 2020, 1 a.m. 11.9 ppb (11) 0.6 ppb (1) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 11.0 ppb (8) N/A N/A 12.0 μg/m3 (50) 50.0
 
Feb. 12, 2020, midnight 14.2 ppb (13) 0.7 ppb (1) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A 15.0 μg/m3 (56) 56.0
 
Feb. 11, 2020, 11 p.m. 14.8 ppb (14) 1.5 ppb (1) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A 11.0 μg/m3 (46) 46.0
 
Feb. 11, 2020, 10 p.m. 17.7 ppb (16) 3.3 ppb (3) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 9.0 ppb (7) N/A N/A 12.0 μg/m3 (50) 50.0
 
Feb. 11, 2020, 9 p.m. 19.8 ppb (18) 4.1 ppb (4) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 8.0 ppb (6) N/A N/A 14.0 μg/m3 (54) 54.0
 
Feb. 11, 2020, 8 p.m. 19.9 ppb (18) 5.0 ppb (5) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 9.0 ppb (7) N/A N/A 12.0 μg/m3 (50) 50.0
 
Feb. 11, 2020, 7 p.m. 18.4 ppb (17) 5.0 ppb (5) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 11.0 ppb (8) N/A N/A 11.0 μg/m3 (46) 46.0
 
Feb. 11, 2020, 6 p.m. 18.4 ppb (17) 7.4 ppb (7) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 12.0 ppb (9) N/A N/A 11.0 μg/m3 (46) 46.0
 
Feb. 11, 2020, 5 p.m. 22.5 ppb (21) 9.5 ppb (9) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 12.0 ppb (9) N/A N/A 9.0 μg/m3 (38) 38.0
 
Feb. 11, 2020, 4 p.m. 19.1 ppb (18) 6.4 ppb (6) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 13.0 ppb (10) N/A N/A 9.0 μg/m3 (38) 38.0
 
Feb. 11, 2020, 3 p.m. 21.4 ppb (20) 9.2 ppb (9) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 14.0 ppb (11) N/A N/A 9.0 μg/m3 (38) 38.0
 
Feb. 11, 2020, 2 p.m. 26.3 ppb (24) 9.9 ppb (9) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A 10.0 μg/m3 (42) 42.0
 
Feb. 11, 2020, 1 p.m. 32.9 ppb (30) 13.0 ppb (12) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 6.0 ppb (5) N/A N/A 13.0 μg/m3 (52) 52.0
 
Feb. 11, 2020, noon 57.0 ppb (53) 31.6 ppb (29) N/A 25.0 ppb (23) N/A 1.0 ppb (1) 2.0 ppb (2) N/A N/A 12.0 μg/m3 (50) 53.0
 
Feb. 11, 2020, 11 a.m. 77.6 ppb (75) 49.6 ppb (46) N/A 28.0 ppb (26) N/A 1.0 ppb (1) 0.0 ppb (0) N/A N/A 12.0 μg/m3 (50) 75.0
 
Feb. 11, 2020, 10 a.m. 70.9 ppb (68) 45.7 ppb (42) N/A 25.0 ppb (23) N/A 1.0 ppb (1) 0.0 ppb (0) N/A N/A 15.0 μg/m3 (56) 68.0
 
Feb. 11, 2020, 9 a.m. 57.2 ppb (53) 32.2 ppb (30) N/A 25.0 ppb (23) N/A 1.0 ppb (1) 0.0 ppb (0) N/A N/A 12.0 μg/m3 (50) 53.0
 
Feb. 11, 2020, 8 a.m. 51.7 ppb (48) 25.8 ppb (24) N/A 26.0 ppb (24) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 16.0 μg/m3 (59) 59.0
 
Feb. 11, 2020, 7 a.m. 38.9 ppb (36) 14.0 ppb (13) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 0.0 ppb (0) N/A N/A 12.0 μg/m3 (50) 50.0
 
Feb. 11, 2020, 6 a.m. 35.4 ppb (33) 11.4 ppb (11) N/A 24.0 ppb (22) N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A 16.0 μg/m3 (59) 59.0
 
Feb. 11, 2020, 5 a.m. 27.1 ppb (25) 4.5 ppb (4) N/A 23.0 ppb (21) N/A 0.0 ppb (0) 3.0 ppb (2) N/A N/A 9.0 μg/m3 (38) 38.0
 
Feb. 11, 2020, 4 a.m. 19.5 ppb (18) 0.7 ppb (1) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 6.0 ppb (5) N/A N/A 12.0 μg/m3 (50) 50.0
 
Feb. 11, 2020, 3 a.m. 18.2 ppb (17) 1.6 ppb (1) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 9.0 ppb (7) N/A N/A 8.0 μg/m3 (33) 33.0
 
Feb. 11, 2020, 2 a.m. 20.6 ppb (19) 1.9 ppb (2) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 9.0 ppb (7) N/A N/A 12.0 μg/m3 (50) 50.0
 
Feb. 11, 2020, 1 a.m. 21.3 ppb (20) 1.4 ppb (1) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 8.0 ppb (6) N/A N/A 15.0 μg/m3 (56) 56.0
 
Feb. 11, 2020, midnight 22.0 ppb (20) 1.0 ppb (1) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 10.0 ppb (8) N/A N/A 10.0 μg/m3 (42) 42.0
 
Feb. 10, 2020, 11 p.m. 15.9 ppb (15) 0.0 ppb (0) N/A 16.0 ppb (15) N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A 8.0 μg/m3 (33) 33.0
 
Feb. 10, 2020, 10 p.m. 11.7 ppb (11) 0.1 ppb (0) N/A 12.0 ppb (11) N/A 0.0 ppb (0) 22.0 ppb (17) N/A N/A 8.0 μg/m3 (33) 33.0
 
Feb. 10, 2020, 9 p.m. 10.3 ppb (10) 0.6 ppb (1) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 7.0 μg/m3 (29) 29.0
 
Feb. 10, 2020, 8 p.m. 10.6 ppb (10) 1.3 ppb (1) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 6.0 μg/m3 (25) 25.0