AQSQID: 230031100

Site Name: Micmac

Location: Presque Isle (Nern Rd), ME

Reporting: True, Located: True

Current AQI: 33.0

Presque Isle (Nern Rd) ME, US: 46.6964, -68.033096

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 23, 2019, 11 p.m. 0.7 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (33) 0.04 ppb (0) N/A 5.6 μg/m3 (23) 33.0
 
March 23, 2019, 10 p.m. 0.7 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (33) 0.08 ppb (1) N/A 6.2 μg/m3 (26) 33.0
 
March 23, 2019, 9 p.m. 1.0 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (33) 0.08 ppb (1) N/A 6.1 μg/m3 (25) 33.0
 
March 23, 2019, 8 p.m. 0.7 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (32) 0.08 ppb (1) N/A 6.3 μg/m3 (26) 32.0
 
March 23, 2019, 7 p.m. 0.8 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 40.0 ppb (31) 0.1 ppb (1) N/A 3.4 μg/m3 (14) 31.0
 
March 23, 2019, 6 p.m. 0.7 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (32) 0.07 ppb (1) N/A 6.5 μg/m3 (27) 32.0
 
March 23, 2019, 5 p.m. 1.5 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 40.0 ppb (31) 0.05 ppb (1) N/A 5.9 μg/m3 (25) 31.0
 
March 23, 2019, 4 p.m. 1.8 ppb (2) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 40.0 ppb (31) 0.11 ppb (1) N/A 5.3 μg/m3 (22) 31.0
 
March 23, 2019, 3 p.m. 1.6 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 40.0 ppb (31) 0.11 ppb (1) N/A 3.7 μg/m3 (15) 31.0
 
March 23, 2019, 2 p.m. 2.3 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 41.0 ppb (32) 0.13 ppb (1) N/A 5.3 μg/m3 (22) 32.0
 
March 23, 2019, 1 p.m. 3.0 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 43.0 ppb (33) 0.12 ppb (1) N/A 6.1 μg/m3 (25) 33.0
 
March 23, 2019, noon 2.6 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 42.0 ppb (32) 0.12 ppb (1) N/A 5.3 μg/m3 (22) 32.0
 
March 23, 2019, 11 a.m. 2.8 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 40.0 ppb (31) 0.08 ppb (1) N/A 5.8 μg/m3 (24) 31.0
 
March 23, 2019, 10 a.m. 2.4 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (30) 0.12 ppb (1) N/A 5.8 μg/m3 (24) 30.0
 
March 23, 2019, 9 a.m. 1.5 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (32) 0.09 ppb (1) N/A 3.7 μg/m3 (15) 32.0
 
March 23, 2019, 8 a.m. 1.2 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 42.0 ppb (32) 0.08 ppb (1) N/A 3.5 μg/m3 (15) 32.0
 
March 23, 2019, 7 a.m. 1.1 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 42.0 ppb (32) 0.08 ppb (1) N/A 2.8 μg/m3 (12) 32.0
 
March 23, 2019, 6 a.m. 1.3 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (33) 0.08 ppb (1) N/A 2.5 μg/m3 (10) 33.0
 
March 23, 2019, 5 a.m. 1.3 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (33) 0.05 ppb (1) N/A 2.7 μg/m3 (11) 33.0
 
March 23, 2019, 4 a.m. 0.9 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 44.0 ppb (34) 0.07 ppb (1) N/A 2.1 μg/m3 (9) 34.0
 
March 23, 2019, 3 a.m. 1.1 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 45.0 ppb (35) 0.07 ppb (1) N/A 0.8 μg/m3 (3) 35.0
 
March 23, 2019, 2 a.m. 0.9 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 45.0 ppb (35) 0.08 ppb (1) N/A 1.4 μg/m3 (6) 35.0
 
March 23, 2019, 1 a.m. 1.4 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 44.0 ppb (34) 0.08 ppb (1) N/A 2.1 μg/m3 (9) 34.0
 
March 23, 2019, midnight 1.4 ppb (1) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 44.0 ppb (34) 0.08 ppb (1) N/A 2.5 μg/m3 (10) 34.0
 
March 22, 2019, 11 p.m. 1.6 ppb (1) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (33) 0.05 ppb (1) N/A 2.1 μg/m3 (9) 33.0
 
March 22, 2019, 10 p.m. 1.3 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 44.0 ppb (34) 0.08 ppb (1) N/A 1.6 μg/m3 (7) 34.0
 
March 22, 2019, 9 p.m. 1.2 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 45.0 ppb (35) 0.08 ppb (1) N/A -0.2 μg/m3 (0) 35.0
 
March 22, 2019, 8 p.m. 1.1 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 47.0 ppb (36) 0.08 ppb (1) N/A -2.6 μg/m3 (0) 36.0
 
March 22, 2019, 7 p.m. 1.6 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 48.0 ppb (37) 0.12 ppb (1) N/A -0.3 μg/m3 (0) 37.0
 
March 22, 2019, 6 p.m. 3.6 ppb (3) 1.4 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 48.0 ppb (37) 0.1 ppb (1) N/A -0.4 μg/m3 (0) 37.0
 
March 22, 2019, 5 p.m. 2.4 ppb (2) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 49.0 ppb (38) 0.09 ppb (1) N/A 2.1 μg/m3 (9) 38.0
 
March 22, 2019, 4 p.m. 2.2 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 50.0 ppb (38) 0.12 ppb (1) N/A 3.8 μg/m3 (16) 38.0
 
March 22, 2019, 3 p.m. 2.3 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 50.0 ppb (38) 0.14 ppb (2) N/A 3.3 μg/m3 (14) 38.0
 
March 22, 2019, 2 p.m. 2.2 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 49.0 ppb (38) 0.15 ppb (2) N/A 1.1 μg/m3 (5) 38.0
 
March 22, 2019, 1 p.m. 2.1 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 48.0 ppb (37) 0.18 ppb (2) N/A 2.5 μg/m3 (10) 37.0
 
March 22, 2019, noon 4.0 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 46.0 ppb (35) 0.2 ppb (2) N/A 1.3 μg/m3 (5) 35.0
 
March 22, 2019, 11 a.m. 4.1 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 45.0 ppb (35) 0.1 ppb (1) N/A 3.0 μg/m3 (12) 35.0
 
March 22, 2019, 10 a.m. 3.6 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 46.0 ppb (35) 0.08 ppb (1) N/A 3.2 μg/m3 (13) 35.0
 
March 22, 2019, 9 a.m. 2.5 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 47.0 ppb (36) 0.07 ppb (1) N/A 3.9 μg/m3 (16) 36.0
 
March 22, 2019, 8 a.m. 2.5 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 48.0 ppb (37) 0.07 ppb (1) N/A 2.9 μg/m3 (12) 37.0
 
March 22, 2019, 7 a.m. 2.2 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 50.0 ppb (38) 0.07 ppb (1) N/A 6.3 μg/m3 (26) 38.0
 
March 22, 2019, 6 a.m. 2.3 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 52.0 ppb (40) 0.07 ppb (1) N/A 7.3 μg/m3 (30) 40.0
 
March 22, 2019, 5 a.m. 1.4 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 55.0 ppb (42) 0.04 ppb (0) N/A 5.0 μg/m3 (21) 42.0
 
March 22, 2019, 4 a.m. 1.6 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 57.0 ppb (44) 0.09 ppb (1) N/A 6.3 μg/m3 (26) 44.0
 
March 22, 2019, 3 a.m. 1.4 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 57.0 ppb (44) 0.09 ppb (1) N/A 4.8 μg/m3 (20) 44.0
 
March 22, 2019, 2 a.m. 1.1 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 55.0 ppb (42) 0.09 ppb (1) N/A 4.2 μg/m3 (18) 42.0
 
March 22, 2019, 1 a.m. 1.3 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 55.0 ppb (42) 0.09 ppb (1) N/A 5.4 μg/m3 (23) 42.0
 
March 22, 2019, midnight 1.8 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 55.0 ppb (42) 0.09 ppb (1) N/A 5.1 μg/m3 (21) 42.0
 
March 21, 2019, 11 p.m. 1.4 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 55.0 ppb (42) 0.07 ppb (1) N/A 5.7 μg/m3 (24) 42.0
 
March 21, 2019, 10 p.m. 1.6 ppb (1) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 56.0 ppb (43) 0.11 ppb (1) N/A 6.4 μg/m3 (27) 43.0
 
March 21, 2019, 9 p.m. 1.9 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 56.0 ppb (43) 0.12 ppb (1) N/A 6.1 μg/m3 (25) 43.0
 
March 21, 2019, 8 p.m. 3.0 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 56.0 ppb (43) 0.14 ppb (2) N/A 7.8 μg/m3 (32) 43.0
 
March 21, 2019, 7 p.m. 4.9 ppb (5) 0.7 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 54.0 ppb (42) 0.15 ppb (2) N/A 8.2 μg/m3 (34) 42.0
 
March 21, 2019, 6 p.m. 4.2 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 53.0 ppb (41) 0.13 ppb (1) N/A 6.3 μg/m3 (26) 41.0
 
March 21, 2019, 5 p.m. 7.2 ppb (7) 1.6 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 50.0 ppb (38) 0.08 ppb (1) N/A 6.8 μg/m3 (28) 38.0
 
March 21, 2019, 4 p.m. 5.3 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 50.0 ppb (38) 0.11 ppb (1) N/A 7.4 μg/m3 (31) 38.0
 
March 21, 2019, 3 p.m. 5.9 ppb (5) 1.3 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 48.0 ppb (37) 0.1 ppb (1) N/A 6.5 μg/m3 (27) 37.0
 
March 21, 2019, 2 p.m. 7.6 ppb (7) 1.9 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 45.0 ppb (35) 0.1 ppb (1) N/A 7.1 μg/m3 (30) 35.0
 
March 21, 2019, 1 p.m. 6.6 ppb (6) 1.5 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 44.0 ppb (34) 0.1 ppb (1) N/A 6.8 μg/m3 (28) 34.0
 
March 21, 2019, noon 9.8 ppb (9) 1.9 ppb (2) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A 0.12 ppb (1) N/A 7.7 μg/m3 (32) 32.0
 
March 21, 2019, 11 a.m. 9.4 ppb (9) 1.3 ppb (1) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A 0.07 ppb (1) N/A 7.0 μg/m3 (29) 29.0
 
March 21, 2019, 10 a.m. 6.5 ppb (6) 0.3 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.13 ppb (1) N/A 6.5 μg/m3 (27) 27.0
 
March 21, 2019, 9 a.m. 4.2 ppb (4) 0.1 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 46.0 ppb (35) 0.1 ppb (1) N/A 5.9 μg/m3 (25) 35.0
 
March 21, 2019, 8 a.m. 5.5 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 44.0 ppb (34) 0.11 ppb (1) N/A 6.3 μg/m3 (26) 34.0
 
March 21, 2019, 7 a.m. 6.4 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 44.0 ppb (34) 0.11 ppb (1) N/A 6.1 μg/m3 (25) 34.0
 
March 21, 2019, 6 a.m. 1.9 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 49.0 ppb (38) 0.09 ppb (1) N/A 3.8 μg/m3 (16) 38.0
 
March 21, 2019, 5 a.m. 1.2 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 50.0 ppb (38) 0.06 ppb (1) N/A 5.0 μg/m3 (21) 38.0
 
March 21, 2019, 4 a.m. 1.1 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 49.0 ppb (38) 0.1 ppb (1) N/A 5.9 μg/m3 (25) 38.0
 
March 21, 2019, 3 a.m. 1.2 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 48.0 ppb (37) 0.1 ppb (1) N/A 6.7 μg/m3 (28) 37.0
 
March 21, 2019, 2 a.m. 1.6 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 46.0 ppb (35) 0.1 ppb (1) N/A 5.6 μg/m3 (23) 35.0
 
March 21, 2019, 1 a.m. 2.6 ppb (2) 0.1 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 45.0 ppb (35) 0.13 ppb (1) N/A 7.7 μg/m3 (32) 35.0
 
March 21, 2019, midnight 3.2 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 45.0 ppb (35) 0.11 ppb (1) N/A 6.3 μg/m3 (26) 35.0
 
March 20, 2019, 11 p.m. 4.9 ppb (5) 0.2 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 45.0 ppb (35) 0.08 ppb (1) N/A 7.0 μg/m3 (29) 35.0
 
March 20, 2019, 10 p.m. 1.4 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 49.0 ppb (38) 0.1 ppb (1) N/A 5.4 μg/m3 (23) 38.0
 
March 20, 2019, 9 p.m. 0.9 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 49.0 ppb (38) 0.1 ppb (1) N/A 4.6 μg/m3 (19) 38.0
 
March 20, 2019, 8 p.m. 1.0 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 49.0 ppb (38) 0.1 ppb (1) N/A 2.8 μg/m3 (12) 38.0
 
March 20, 2019, 7 p.m. 1.6 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 49.0 ppb (38) 0.1 ppb (1) N/A 4.2 μg/m3 (18) 38.0
 
March 20, 2019, 6 p.m. 1.3 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 49.0 ppb (38) 0.1 ppb (1) N/A 3.8 μg/m3 (16) 38.0
 
March 20, 2019, 5 p.m. 1.3 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 49.0 ppb (38) 0.06 ppb (1) N/A 2.1 μg/m3 (9) 38.0
 
March 20, 2019, 4 p.m. 1.4 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 49.0 ppb (38) 0.05 ppb (1) N/A 3.4 μg/m3 (14) 38.0
 
March 20, 2019, 3 p.m. 1.9 ppb (2) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 49.0 ppb (38) 0.05 ppb (1) N/A 4.6 μg/m3 (19) 38.0
 
March 20, 2019, 2 p.m. 2.2 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 48.0 ppb (37) 0.06 ppb (1) N/A 6.4 μg/m3 (27) 37.0
 
March 20, 2019, 1 p.m. 3.7 ppb (3) 0.9 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 44.0 ppb (34) 0.07 ppb (1) N/A 5.6 μg/m3 (23) 34.0
 
March 20, 2019, noon 8.1 ppb (8) 2.2 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 40.0 ppb (31) 0.09 ppb (1) N/A 8.3 μg/m3 (35) 35.0
 
March 20, 2019, 11 a.m. 9.6 ppb (9) 1.9 ppb (2) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 37.0 ppb (28) 0.08 ppb (1) N/A 7.9 μg/m3 (33) 33.0
 
March 20, 2019, 10 a.m. 4.5 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 40.0 ppb (31) 0.15 ppb (2) N/A 5.4 μg/m3 (23) 31.0
 
March 20, 2019, 9 a.m. 5.0 ppb (5) 0.1 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 36.0 ppb (28) 0.12 ppb (1) N/A 6.4 μg/m3 (27) 28.0
 
March 20, 2019, 8 a.m. 7.6 ppb (7) 0.1 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 29.0 ppb (22) 0.1 ppb (1) N/A 6.7 μg/m3 (28) 28.0
 
March 20, 2019, 7 a.m. 3.0 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 37.0 ppb (28) 0.1 ppb (1) N/A 5.2 μg/m3 (22) 28.0
 
March 20, 2019, 6 a.m. 2.8 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 37.0 ppb (28) 0.1 ppb (1) N/A 4.9 μg/m3 (20) 28.0
 
March 20, 2019, 5 a.m. 2.6 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (29) 0.06 ppb (1) N/A 5.8 μg/m3 (24) 29.0
 
March 20, 2019, 4 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 6.7 μg/m3 (28) 30.0
 
March 20, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 7.8 μg/m3 (32) 32.0
 
March 20, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 6.3 μg/m3 (26) 33.0
 
March 20, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 7.2 μg/m3 (30) 35.0
 
March 20, 2019, midnight N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 6.6 μg/m3 (28) 36.0
 
March 19, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 6.8 μg/m3 (28) 38.0
 
March 19, 2019, 10 p.m. 1.3 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 50.0 ppb (38) N/A N/A 5.2 μg/m3 (22) 38.0
 
March 19, 2019, 9 p.m. 1.2 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 49.0 ppb (38) N/A N/A 4.4 μg/m3 (18) 38.0
 
March 19, 2019, 8 p.m. 1.1 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 48.0 ppb (37) N/A N/A 3.0 μg/m3 (12) 37.0
 
March 19, 2019, 7 p.m. 1.2 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 47.0 ppb (36) N/A N/A 3.9 μg/m3 (16) 36.0
 
March 19, 2019, 6 p.m. 1.3 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 48.0 ppb (37) N/A N/A 3.1 μg/m3 (13) 37.0
 
March 19, 2019, 5 p.m. 1.2 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 46.0 ppb (35) 0.05 ppb (1) N/A 1.9 μg/m3 (8) 35.0
 
March 19, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) 1.55 ppb (17) N/A 3.4 μg/m3 (14) 34.0
 
March 19, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) 1.47 ppb (16) N/A 3.9 μg/m3 (16) 32.0
 
March 19, 2019, 2 p.m. 3.7 ppb (3) 1.3 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (29) 0.08 ppb (1) N/A 3.6 μg/m3 (15) 29.0
 
March 19, 2019, 1 p.m. 8.1 ppb (8) 2.7 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 34.0 ppb (26) 0.12 ppb (1) N/A 6.3 μg/m3 (26) 26.0
 
March 19, 2019, noon 26.0 ppb (24) 8.7 ppb (8) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 25.0 ppb (19) 0.23 ppb (3) N/A 15.6 μg/m3 (58) 58.0
 
March 19, 2019, 11 a.m. 23.1 ppb (21) 6.3 ppb (6) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 23.0 ppb (18) 0.49 ppb (5) N/A 9.8 μg/m3 (41) 41.0
 
March 19, 2019, 10 a.m. 11.8 ppb (11) 0.5 ppb (0) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 28.0 ppb (22) 0.06 ppb (1) N/A 9.1 μg/m3 (38) 38.0
 
March 19, 2019, 9 a.m. 9.8 ppb (9) 0.1 ppb (0) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 33.0 ppb (25) 0.07 ppb (1) N/A 6.3 μg/m3 (26) 26.0
 
March 19, 2019, 8 a.m. 4.9 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 37.0 ppb (28) 0.09 ppb (1) N/A 5.8 μg/m3 (24) 28.0
 
March 19, 2019, 7 a.m. 4.9 ppb (5) 0.4 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 38.0 ppb (29) 0.2 ppb (2) N/A 5.5 μg/m3 (23) 29.0
 
March 19, 2019, 6 a.m. 3.4 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 39.0 ppb (30) 0.03 ppb (0) N/A 4.8 μg/m3 (20) 30.0
 
March 19, 2019, 5 a.m. 3.5 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 40.0 ppb (31) 0.08 ppb (1) N/A 5.7 μg/m3 (24) 31.0
 
March 19, 2019, 4 a.m. 5.0 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 40.0 ppb (31) 0.32 ppb (4) N/A 5.3 μg/m3 (22) 31.0
 
March 19, 2019, 3 a.m. 5.7 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 39.0 ppb (30) 0.3 ppb (3) N/A 5.1 μg/m3 (21) 30.0
 
March 19, 2019, 2 a.m. 5.4 ppb (5) 1.6 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 42.0 ppb (32) 0.33 ppb (4) N/A 5.5 μg/m3 (23) 32.0
 
March 19, 2019, 1 a.m. 2.8 ppb (3) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 44.0 ppb (34) 0.09 ppb (1) N/A 5.8 μg/m3 (24) 34.0
 
March 19, 2019, midnight 3.8 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 43.0 ppb (33) 0.1 ppb (1) N/A 6.0 μg/m3 (25) 33.0
 
March 18, 2019, 11 p.m. 4.6 ppb (4) 0.9 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 43.0 ppb (33) 0.06 ppb (1) N/A 5.7 μg/m3 (24) 33.0
 
March 18, 2019, 10 p.m. 3.8 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 44.0 ppb (34) 0.11 ppb (1) N/A 8.0 μg/m3 (33) 34.0
 
March 18, 2019, 9 p.m. 1.9 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 45.0 ppb (35) 0.08 ppb (1) N/A 5.8 μg/m3 (24) 35.0
 
March 18, 2019, 8 p.m. 2.3 ppb (2) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 45.0 ppb (35) 0.12 ppb (1) N/A 4.6 μg/m3 (19) 35.0
 
March 18, 2019, 7 p.m. 1.6 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (33) 0.08 ppb (1) N/A 3.9 μg/m3 (16) 33.0
 
March 18, 2019, 6 p.m. 1.9 ppb (2) 0.7 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (32) 0.08 ppb (1) N/A 3.1 μg/m3 (13) 32.0
 
March 18, 2019, 5 p.m. 2.0 ppb (2) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 42.0 ppb (32) 0.06 ppb (1) N/A 3.9 μg/m3 (16) 32.0
 
March 18, 2019, 4 p.m. 1.7 ppb (2) 0.9 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (33) 0.11 ppb (1) N/A 1.9 μg/m3 (8) 33.0
 
March 18, 2019, 3 p.m. 3.2 ppb (3) 1.2 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 42.0 ppb (32) 0.12 ppb (1) N/A 5.3 μg/m3 (22) 32.0
 
March 18, 2019, 2 p.m. 3.1 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 42.0 ppb (32) 0.1 ppb (1) N/A 7.1 μg/m3 (30) 32.0
 
March 18, 2019, 1 p.m. 2.3 ppb (2) 0.9 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 42.0 ppb (32) 0.09 ppb (1) N/A 5.0 μg/m3 (21) 32.0
 
March 18, 2019, noon 3.5 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 5.1 μg/m3 (21) 21.0
 
March 18, 2019, 11 a.m. 5.9 ppb (5) 1.3 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A 0.07 ppb (1) N/A 4.8 μg/m3 (20) 20.0
 
March 18, 2019, 10 a.m. 6.8 ppb (6) 0.9 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.12 ppb (1) N/A 5.5 μg/m3 (23) 23.0
 
March 18, 2019, 9 a.m. 4.7 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 39.0 ppb (30) 0.1 ppb (1) N/A 4.6 μg/m3 (19) 30.0
 
March 18, 2019, 8 a.m. 2.1 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 40.0 ppb (31) 0.1 ppb (1) N/A 3.7 μg/m3 (15) 31.0
 
March 18, 2019, 7 a.m. 2.6 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 40.0 ppb (31) 0.1 ppb (1) N/A 3.5 μg/m3 (15) 31.0
 
March 18, 2019, 6 a.m. 2.1 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 40.0 ppb (31) 0.09 ppb (1) N/A 3.9 μg/m3 (16) 31.0
 
March 18, 2019, 5 a.m. 2.2 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 40.0 ppb (31) 0.06 ppb (1) N/A 3.6 μg/m3 (15) 31.0
 
March 18, 2019, 4 a.m. 2.0 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 41.0 ppb (32) 0.1 ppb (1) N/A 3.2 μg/m3 (13) 32.0
 
March 18, 2019, 3 a.m. 1.3 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (32) 0.09 ppb (1) N/A 4.3 μg/m3 (18) 32.0
 
March 18, 2019, 2 a.m. 1.7 ppb (2) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (32) 0.09 ppb (1) N/A 4.1 μg/m3 (17) 32.0
 
March 18, 2019, 1 a.m. 1.6 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (32) 0.09 ppb (1) N/A 4.0 μg/m3 (17) 32.0
 
March 18, 2019, midnight 1.6 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 42.0 ppb (32) 0.09 ppb (1) N/A 4.5 μg/m3 (19) 32.0
 
March 17, 2019, 11 p.m. 1.2 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (33) 0.06 ppb (1) N/A 5.4 μg/m3 (23) 33.0
 
March 17, 2019, 10 p.m. 0.8 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (33) 0.09 ppb (1) N/A 5.1 μg/m3 (21) 33.0
 
March 17, 2019, 9 p.m. 0.6 ppb (1) 0.1 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 43.0 ppb (33) 0.09 ppb (1) N/A 3.6 μg/m3 (15) 33.0
 
March 17, 2019, 8 p.m. 0.8 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 44.0 ppb (34) 0.09 ppb (1) N/A 4.4 μg/m3 (18) 34.0
 
March 17, 2019, 7 p.m. 0.6 ppb (1) 0.1 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 44.0 ppb (34) 0.09 ppb (1) N/A 3.7 μg/m3 (15) 34.0
 
March 17, 2019, 6 p.m. 0.7 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 44.0 ppb (34) 0.09 ppb (1) N/A 3.5 μg/m3 (15) 34.0
 
March 17, 2019, 5 p.m. 0.8 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 43.0 ppb (33) 0.06 ppb (1) N/A 2.3 μg/m3 (10) 33.0
 
March 17, 2019, 4 p.m. 0.6 ppb (1) 0.1 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 44.0 ppb (34) 0.1 ppb (1) N/A 2.2 μg/m3 (9) 34.0
 
March 17, 2019, 3 p.m. 1.3 ppb (1) 0.6 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 45.0 ppb (35) 0.1 ppb (1) N/A 2.7 μg/m3 (11) 35.0
 
March 17, 2019, 2 p.m. 0.9 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 46.0 ppb (35) 0.1 ppb (1) N/A 2.4 μg/m3 (10) 35.0
 
March 17, 2019, 1 p.m. 0.4 ppb (0) 0.1 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 46.0 ppb (35) 0.1 ppb (1) N/A 3.1 μg/m3 (13) 35.0
 
March 17, 2019, noon 0.4 ppb (0) 0.1 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 46.0 ppb (35) 0.1 ppb (1) N/A 4.2 μg/m3 (18) 35.0
 
March 17, 2019, 11 a.m. 0.5 ppb (0) 0.1 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 45.0 ppb (35) 0.06 ppb (1) N/A 2.8 μg/m3 (12) 35.0
 
March 17, 2019, 10 a.m. 0.8 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 45.0 ppb (35) 0.08 ppb (1) N/A 3.9 μg/m3 (16) 35.0
 
March 17, 2019, 9 a.m. 0.7 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 46.0 ppb (35) 0.08 ppb (1) N/A 4.0 μg/m3 (17) 35.0
 
March 17, 2019, 8 a.m. 0.6 ppb (1) 0.1 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 47.0 ppb (36) 0.08 ppb (1) N/A 3.1 μg/m3 (13) 36.0
 
March 17, 2019, 7 a.m. 0.6 ppb (1) 0.1 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 48.0 ppb (37) 0.08 ppb (1) N/A 3.6 μg/m3 (15) 37.0
 
March 17, 2019, 6 a.m. 0.3 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 48.0 ppb (37) 0.08 ppb (1) N/A 3.0 μg/m3 (12) 37.0
 
March 17, 2019, 5 a.m. 0.5 ppb (0) 0.1 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 48.0 ppb (37) 0.05 ppb (1) N/A 2.1 μg/m3 (9) 37.0
 
March 17, 2019, 4 a.m. 0.5 ppb (0) 0.1 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 48.0 ppb (37) 0.1 ppb (1) N/A 2.7 μg/m3 (11) 37.0
 
March 17, 2019, 3 a.m. 0.4 ppb (0) 0.1 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 49.0 ppb (38) 0.1 ppb (1) N/A 3.3 μg/m3 (14) 38.0
 
March 17, 2019, 2 a.m. 0.5 ppb (0) 0.1 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 50.0 ppb (38) 0.1 ppb (1) N/A 3.2 μg/m3 (13) 38.0
 
March 17, 2019, 1 a.m. 0.4 ppb (0) 0.1 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 50.0 ppb (38) 0.1 ppb (1) N/A 3.6 μg/m3 (15) 38.0
 
March 17, 2019, midnight 0.4 ppb (0) 0.0 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 49.0 ppb (38) 0.1 ppb (1) N/A 4.8 μg/m3 (20) 38.0