AQSQID: 230090103

Site Name: Acadia Np - Mcfarland

Location: Hancock Co, ME

Reporting: True, Located: True

Current AQI: 26.0

Hancock Co ME, US: 44.377048, -68.260902

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 26, 2019, noon N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 0.5 μg/m3 (2) 26.0
 
May 26, 2019, 11 a.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 0.7 μg/m3 (3) 26.0
 
May 26, 2019, 10 a.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 0.9 μg/m3 (4) 26.0
 
May 26, 2019, 9 a.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 1.9 μg/m3 (8) 25.0
 
May 26, 2019, 8 a.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 2.5 μg/m3 (10) 25.0
 
May 26, 2019, 7 a.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 3.7 μg/m3 (15) 24.0
 
May 26, 2019, 6 a.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 3.5 μg/m3 (15) 25.0
 
May 26, 2019, 5 a.m. N/A 0.0 ppb (0) 0.5 ppb (0) N/A N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 3.2 μg/m3 (13) 25.0
 
May 26, 2019, 4 a.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 2.9 μg/m3 (12) 24.0
 
May 26, 2019, 3 a.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 2.4 μg/m3 (10) 24.0
 
May 26, 2019, 2 a.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 1.8 μg/m3 (8) 25.0
 
May 26, 2019, 1 a.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 1.3 μg/m3 (5) 27.0
 
May 26, 2019, midnight N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 1.4 μg/m3 (6) 26.0
 
May 25, 2019, 11 p.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 1.4 μg/m3 (6) 25.0
 
May 25, 2019, 10 p.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 2.0 μg/m3 (8) 23.0
 
May 25, 2019, 9 p.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 1.9 μg/m3 (8) 23.0
 
May 25, 2019, 8 p.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 1.5 μg/m3 (6) 25.0
 
May 25, 2019, 7 p.m. N/A 0.0 ppb (0) 0.5 ppb (0) N/A N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 1.4 μg/m3 (6) 25.0
 
May 25, 2019, 6 p.m. N/A 0.0 ppb (0) 0.5 ppb (0) N/A N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 1.4 μg/m3 (6) 25.0
 
May 25, 2019, 5 p.m. N/A 0.0 ppb (0) 0.5 ppb (0) N/A N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 1.5 μg/m3 (6) 23.0
 
May 25, 2019, 4 p.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 1.1 μg/m3 (5) 26.0
 
May 25, 2019, 3 p.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 1.1 μg/m3 (5) 26.0
 
May 25, 2019, 2 p.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 1.4 μg/m3 (6) 24.0
 
May 25, 2019, 1 p.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 1.9 μg/m3 (8) 21.0
 
May 25, 2019, noon N/A 0.0 ppb (0) 0.5 ppb (0) N/A N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 2.4 μg/m3 (10) 19.0
 
May 25, 2019, 11 a.m. N/A 0.0 ppb (0) 0.5 ppb (0) N/A N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 2.6 μg/m3 (11) 18.0
 
May 25, 2019, 10 a.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 21.0 ppb (16) N/A N/A 2.4 μg/m3 (10) 16.0
 
May 25, 2019, 9 a.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 2.2 μg/m3 (9) 18.0
 
May 25, 2019, 8 a.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 2.3 μg/m3 (10) 18.0
 
May 25, 2019, 7 a.m. N/A 0.0 ppb (0) 0.5 ppb (0) N/A N/A 0.0 ppb (0) 26.0 ppb (20) N/A N/A 2.5 μg/m3 (10) 20.0
 
May 25, 2019, 6 a.m. N/A 0.0 ppb (0) 0.5 ppb (0) N/A N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 2.5 μg/m3 (10) 21.0
 
May 25, 2019, 5 a.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 2.0 μg/m3 (8) 21.0
 
May 25, 2019, 4 a.m. N/A 0.0 ppb (0) 0.5 ppb (0) N/A N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 2.0 μg/m3 (8) 22.0
 
May 25, 2019, 3 a.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 1.8 μg/m3 (8) 23.0
 
May 25, 2019, 2 a.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 1.5 μg/m3 (6) 25.0
 
May 25, 2019, 1 a.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 1.3 μg/m3 (5) 25.0
 
May 25, 2019, midnight N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 1.3 μg/m3 (5) 25.0
 
May 24, 2019, 11 p.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 1.5 μg/m3 (6) 24.0
 
May 24, 2019, 10 p.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 1.2 μg/m3 (5) 24.0
 
May 24, 2019, 9 p.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 1.0 μg/m3 (4) 24.0
 
May 24, 2019, 8 p.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 1.0 μg/m3 (4) 24.0
 
May 24, 2019, 7 p.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 0.9 μg/m3 (4) 25.0
 
May 24, 2019, 6 p.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 0.5 μg/m3 (2) 25.0
 
May 24, 2019, 5 p.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 0.3 μg/m3 (1) 25.0
 
May 24, 2019, 4 p.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 0.3 μg/m3 (1) 24.0
 
May 24, 2019, 3 p.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 0.0 μg/m3 (0) 24.0
 
May 24, 2019, 2 p.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 0.0 μg/m3 (0) 27.0
 
May 24, 2019, 1 p.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 0.0 μg/m3 (0) 27.0
 
May 24, 2019, noon N/A 0.0 ppb (0) 0.5 ppb (0) N/A N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 0.1 μg/m3 (0) 23.0
 
May 24, 2019, 11 a.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 0.1 μg/m3 (0) 22.0
 
May 24, 2019, 10 a.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 0.1 μg/m3 (0) 22.0
 
May 24, 2019, 9 a.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 0.1 μg/m3 (0) 23.0
 
May 24, 2019, 8 a.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 0.1 μg/m3 (0) 22.0
 
May 24, 2019, 7 a.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 0.2 μg/m3 (1) 25.0
 
May 24, 2019, 6 a.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 0.4 μg/m3 (2) 25.0
 
May 24, 2019, 5 a.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 0.5 μg/m3 (2) 25.0
 
May 24, 2019, 4 a.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 1.8 μg/m3 (8) 25.0
 
May 24, 2019, 3 a.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 2.4 μg/m3 (10) 23.0
 
May 24, 2019, 2 a.m. N/A 0.0 ppb (0) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 3.8 μg/m3 (16) 23.0
 
May 24, 2019, 1 a.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 4.3 μg/m3 (18) 25.0
 
May 24, 2019, midnight N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 3.8 μg/m3 (16) 25.0
 
May 23, 2019, 11 p.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 3.3 μg/m3 (14) 26.0
 
May 23, 2019, 10 p.m. N/A 0.0 ppb (0) 0.5 ppb (0) N/A N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 2.9 μg/m3 (12) 26.0
 
May 23, 2019, 9 p.m. N/A 0.0 ppb (0) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 2.6 μg/m3 (11) 27.0
 
May 23, 2019, 8 p.m. N/A 0.1 ppb (0) 1.1 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 2.0 μg/m3 (8) 28.0
 
May 23, 2019, 7 p.m. N/A 0.1 ppb (0) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 1.7 μg/m3 (7) 30.0
 
May 23, 2019, 6 p.m. N/A 0.1 ppb (0) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 42.0 ppb (32) N/A N/A 1.9 μg/m3 (8) 32.0
 
May 23, 2019, 5 p.m. N/A 0.1 ppb (0) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 46.0 ppb (35) N/A N/A 1.7 μg/m3 (7) 35.0
 
May 23, 2019, 4 p.m. N/A 0.1 ppb (0) 1.4 ppb (1) N/A N/A 0.0 ppb (0) 48.0 ppb (37) N/A N/A 2.0 μg/m3 (8) 37.0
 
May 23, 2019, 3 p.m. N/A 0.1 ppb (0) 1.4 ppb (1) N/A N/A 0.0 ppb (0) 43.0 ppb (33) N/A N/A 1.8 μg/m3 (8) 33.0
 
May 23, 2019, 2 p.m. N/A 0.1 ppb (0) 1.3 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 1.4 μg/m3 (6) 28.0
 
May 23, 2019, 1 p.m. N/A 0.1 ppb (0) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 1.1 μg/m3 (5) 24.0
 
May 23, 2019, noon N/A 0.2 ppb (0) 1.7 ppb (2) N/A N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 0.8 μg/m3 (3) 22.0
 
May 23, 2019, 11 a.m. N/A 0.2 ppb (0) 2.3 ppb (2) N/A N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 0.8 μg/m3 (3) 22.0
 
May 23, 2019, 10 a.m. N/A 0.0 ppb (0) 1.2 ppb (1) N/A N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 0.6 μg/m3 (2) 24.0
 
May 23, 2019, 9 a.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 0.6 μg/m3 (2) 24.0
 
May 23, 2019, 8 a.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 0.7 μg/m3 (3) 24.0
 
May 23, 2019, 7 a.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 0.7 μg/m3 (3) 25.0
 
May 23, 2019, 6 a.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 0.6 μg/m3 (2) 25.0
 
May 23, 2019, 5 a.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 0.6 μg/m3 (2) 26.0
 
May 23, 2019, 4 a.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 34.0 ppb (26) N/A N/A 0.6 μg/m3 (2) 26.0
 
May 23, 2019, 3 a.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 0.7 μg/m3 (3) 25.0
 
May 23, 2019, 2 a.m. N/A 0.0 ppb (0) 0.2 ppb (0) N/A N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 0.7 μg/m3 (3) 22.0
 
May 23, 2019, 1 a.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 0.7 μg/m3 (3) 22.0
 
May 23, 2019, midnight N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 0.7 μg/m3 (3) 23.0
 
May 22, 2019, 11 p.m. N/A 0.0 ppb (0) 0.5 ppb (0) N/A N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 0.7 μg/m3 (3) 22.0
 
May 22, 2019, 10 p.m. N/A 0.0 ppb (0) 0.2 ppb (0) N/A N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 0.5 μg/m3 (2) 25.0
 
May 22, 2019, 9 p.m. N/A 0.0 ppb (0) 0.2 ppb (0) N/A N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 0.4 μg/m3 (2) 25.0
 
May 22, 2019, 8 p.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 0.4 μg/m3 (2) 25.0
 
May 22, 2019, 7 p.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 0.4 μg/m3 (2) 24.0
 
May 22, 2019, 6 p.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 0.2 μg/m3 (1) 25.0
 
May 22, 2019, 5 p.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A -0.1 μg/m3 (0) 24.0
 
May 22, 2019, 4 p.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 0.0 μg/m3 (0) 24.0
 
May 22, 2019, 3 p.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 0.2 μg/m3 (1) 23.0
 
May 22, 2019, 2 p.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 0.2 μg/m3 (1) 22.0
 
May 22, 2019, 1 p.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 0.2 μg/m3 (1) 22.0
 
May 22, 2019, noon N/A 0.0 ppb (0) 0.2 ppb (0) N/A N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 0.0 μg/m3 (0) 22.0
 
May 22, 2019, 11 a.m. N/A 0.0 ppb (0) 0.2 ppb (0) N/A N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 0.0 μg/m3 (0) 22.0
 
May 22, 2019, 10 a.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 0.0 μg/m3 (0) 22.0
 
May 22, 2019, 9 a.m. N/A 0.0 ppb (0) 0.2 ppb (0) N/A N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 0.0 μg/m3 (0) 25.0
 
May 22, 2019, 8 a.m. N/A 0.0 ppb (0) 0.2 ppb (0) N/A N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 0.0 μg/m3 (0) 24.0
 
May 22, 2019, 7 a.m. N/A 0.0 ppb (0) 0.2 ppb (0) N/A N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 0.0 μg/m3 (0) 23.0
 
May 22, 2019, 6 a.m. N/A 0.0 ppb (0) 0.2 ppb (0) N/A N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 0.0 μg/m3 (0) 22.0
 
May 22, 2019, 5 a.m. N/A 0.0 ppb (0) 0.2 ppb (0) N/A N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 0.0 μg/m3 (0) 22.0
 
May 22, 2019, 4 a.m. N/A 0.0 ppb (0) 0.2 ppb (0) N/A N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 0.1 μg/m3 (0) 22.0
 
May 22, 2019, 3 a.m. N/A 0.0 ppb (0) 0.2 ppb (0) N/A N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 0.2 μg/m3 (1) 18.0
 
May 22, 2019, 2 a.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 24.0 ppb (18) N/A N/A 0.3 μg/m3 (1) 18.0
 
May 22, 2019, 1 a.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 0.3 μg/m3 (1) 19.0
 
May 22, 2019, midnight N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 0.3 μg/m3 (1) 21.0
 
May 21, 2019, 11 p.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 0.2 μg/m3 (1) 22.0
 
May 21, 2019, 10 p.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 0.2 μg/m3 (1) 22.0
 
May 21, 2019, 9 p.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 0.2 μg/m3 (1) 22.0
 
May 21, 2019, 8 p.m. N/A 0.0 ppb (0) 0.5 ppb (0) N/A N/A 0.0 ppb (0) 28.0 ppb (22) N/A N/A 0.3 μg/m3 (1) 22.0
 
May 21, 2019, 7 p.m. N/A 0.1 ppb (0) 0.5 ppb (0) N/A N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 0.3 μg/m3 (1) 22.0
 
May 21, 2019, 6 p.m. N/A 0.1 ppb (0) 0.6 ppb (1) N/A N/A 0.0 ppb (0) 29.0 ppb (22) N/A N/A 0.2 μg/m3 (1) 22.0
 
May 21, 2019, 5 p.m. N/A 0.0 ppb (0) 0.5 ppb (0) N/A N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 0.4 μg/m3 (2) 25.0
 
May 21, 2019, 4 p.m. N/A 0.0 ppb (0) 0.5 ppb (0) N/A N/A 0.0 ppb (0) 27.0 ppb (21) N/A N/A 0.4 μg/m3 (2) 21.0
 
May 21, 2019, 3 p.m. N/A 0.1 ppb (0) 0.5 ppb (0) N/A N/A 0.0 ppb (0) 23.0 ppb (18) N/A N/A 0.0 μg/m3 (0) 18.0
 
May 21, 2019, 2 p.m. N/A 0.1 ppb (0) 0.5 ppb (0) N/A N/A 0.0 ppb (0) N/A N/A N/A -0.2 μg/m3 (0) N/A
May 21, 2019, 1 p.m. N/A 0.1 ppb (0) 0.6 ppb (1) N/A N/A 0.0 ppb (0) 17.0 ppb (13) N/A N/A 0.1 μg/m3 (0) 13.0
 
May 21, 2019, noon N/A 0.2 ppb (0) 0.8 ppb (1) N/A N/A 0.0 ppb (0) 16.0 ppb (12) N/A N/A 0.9 μg/m3 (4) 12.0
 
May 21, 2019, 11 a.m. N/A 0.3 ppb (0) 1.5 ppb (1) N/A N/A 0.0 ppb (0) 17.0 ppb (13) N/A N/A 3.6 μg/m3 (15) 15.0
 
May 21, 2019, 10 a.m. N/A 0.1 ppb (0) 1.1 ppb (1) N/A N/A 0.0 ppb (0) N/A N/A N/A 5.1 μg/m3 (21) 21.0
 
May 21, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 5.7 μg/m3 (24) 24.0
 
May 21, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 5.0 μg/m3 (21) 23.0
 
May 21, 2019, 7 a.m. N/A 0.0 ppb (0) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 6.0 μg/m3 (25) 25.0
 
May 21, 2019, 6 a.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 8.0 μg/m3 (33) 33.0
 
May 21, 2019, 5 a.m. N/A 0.0 ppb (0) 1.1 ppb (1) N/A N/A 0.0 ppb (0) 45.0 ppb (35) N/A N/A 9.1 μg/m3 (38) 38.0
 
May 21, 2019, 4 a.m. N/A 0.0 ppb (0) 0.8 ppb (1) N/A N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 6.8 μg/m3 (28) 28.0
 
May 21, 2019, 3 a.m. N/A 0.0 ppb (0) 1.0 ppb (1) N/A N/A 0.0 ppb (0) 25.0 ppb (19) N/A N/A 7.6 μg/m3 (32) 32.0
 
May 21, 2019, 2 a.m. N/A 0.0 ppb (0) 1.1 ppb (1) N/A N/A 0.0 ppb (0) 37.0 ppb (28) N/A N/A 8.7 μg/m3 (36) 36.0
 
May 21, 2019, 1 a.m. N/A 0.0 ppb (0) 1.1 ppb (1) N/A N/A 0.0 ppb (0) 45.0 ppb (35) N/A N/A 11.1 μg/m3 (46) 46.0
 
May 21, 2019, midnight N/A 0.0 ppb (0) 1.1 ppb (1) N/A N/A 0.0 ppb (0) 40.0 ppb (31) N/A N/A 11.7 μg/m3 (49) 49.0
 
May 20, 2019, 11 p.m. N/A 0.0 ppb (0) 1.2 ppb (1) N/A N/A 0.0 ppb (0) 44.0 ppb (34) N/A N/A 11.3 μg/m3 (47) 47.0
 
May 20, 2019, 10 p.m. N/A 0.0 ppb (0) 1.3 ppb (1) N/A N/A 0.0 ppb (0) 47.0 ppb (36) N/A N/A 9.9 μg/m3 (41) 41.0
 
May 20, 2019, 9 p.m. N/A 0.0 ppb (0) 1.4 ppb (1) N/A N/A 0.0 ppb (0) 44.0 ppb (34) N/A N/A 8.9 μg/m3 (37) 37.0
 
May 20, 2019, 8 p.m. N/A 0.1 ppb (0) 1.4 ppb (1) N/A N/A 0.0 ppb (0) 42.0 ppb (32) N/A N/A 8.9 μg/m3 (37) 37.0
 
May 20, 2019, 7 p.m. N/A 0.1 ppb (0) 1.4 ppb (1) N/A N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 10.2 μg/m3 (42) 42.0
 
May 20, 2019, 6 p.m. N/A 0.1 ppb (0) 1.3 ppb (1) N/A N/A 0.0 ppb (0) 38.0 ppb (29) N/A N/A 8.0 μg/m3 (33) 33.0
 
May 20, 2019, 5 p.m. N/A 0.1 ppb (0) 1.2 ppb (1) N/A N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 6.6 μg/m3 (28) 28.0
 
May 20, 2019, 4 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 3.4 μg/m3 (14) 27.0
 
May 20, 2019, 3 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 35.0 ppb (27) N/A N/A 2.6 μg/m3 (11) 27.0
 
May 20, 2019, 2 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 36.0 ppb (28) N/A N/A 1.7 μg/m3 (7) 28.0
 
May 20, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 0.7 μg/m3 (3) 25.0
 
May 20, 2019, noon N/A 0.1 ppb (0) 1.1 ppb (1) N/A N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 0.4 μg/m3 (2) 25.0
 
May 20, 2019, 11 a.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 0.7 μg/m3 (3) 25.0
 
May 20, 2019, 10 a.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 0.2 μg/m3 (1) 23.0
 
May 20, 2019, 9 a.m. N/A 0.0 ppb (0) 0.5 ppb (0) N/A N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 0.2 μg/m3 (1) 24.0
 
May 20, 2019, 8 a.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 0.1 μg/m3 (0) 24.0
 
May 20, 2019, 7 a.m. N/A 0.0 ppb (0) 0.5 ppb (0) N/A N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 0.2 μg/m3 (1) 24.0
 
May 20, 2019, 6 a.m. N/A 0.0 ppb (0) 0.5 ppb (0) N/A N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 0.6 μg/m3 (2) 25.0
 
May 20, 2019, 5 a.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 0.7 μg/m3 (3) 25.0
 
May 20, 2019, 4 a.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 1.9 μg/m3 (8) 25.0
 
May 20, 2019, 3 a.m. N/A 0.0 ppb (0) 0.5 ppb (0) N/A N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 2.3 μg/m3 (10) 25.0
 
May 20, 2019, 2 a.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 3.5 μg/m3 (15) 25.0
 
May 20, 2019, 1 a.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 3.3 μg/m3 (14) 25.0
 
May 20, 2019, midnight N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 3.2 μg/m3 (13) 25.0
 
May 19, 2019, 11 p.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 3.0 μg/m3 (12) 25.0
 
May 19, 2019, 10 p.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 2.8 μg/m3 (12) 25.0
 
May 19, 2019, 9 p.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 2.7 μg/m3 (11) 25.0
 
May 19, 2019, 8 p.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 2.3 μg/m3 (10) 25.0
 
May 19, 2019, 7 p.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 33.0 ppb (25) N/A N/A 1.4 μg/m3 (6) 25.0
 
May 19, 2019, 6 p.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 1.3 μg/m3 (5) 25.0
 
May 19, 2019, 5 p.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A N/A 0.0 ppb (0) 31.0 ppb (24) N/A N/A 1.0 μg/m3 (4) 24.0
 
May 19, 2019, 4 p.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 0.8 μg/m3 (3) 23.0
 
May 19, 2019, 3 p.m. N/A 0.1 ppb (0) 0.9 ppb (1) N/A N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 0.8 μg/m3 (3) 23.0
 
May 19, 2019, 2 p.m. N/A 0.0 ppb (0) 0.7 ppb (1) N/A N/A 0.0 ppb (0) 30.0 ppb (23) N/A N/A 0.8 μg/m3 (3) 23.0
 
May 19, 2019, 1 p.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A N/A 0.0 ppb (0) 32.0 ppb (25) N/A N/A 0.8 μg/m3 (3) 25.0