ID: 450

AQSQID: 230052003

Site Name: Cape Elizabeth

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

Updated: April 11, 2021, 3:42 a.m.

Location: Cape Elizabeth (Two Lights Rd), ME

Reporting: True, Located: True

Current AQI: 36.0

Cape Elizabeth (Two Lights Rd) ME, US: 43.561043, -70.207321

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
April 11, 2021, 2 a.m. N/A 0.0 ppb (0) 0.4 ppb (1) N/A N/A N/A 38.0 ppb (36) N/A N/A N/A 36.0
 
April 11, 2021, 1 a.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A N/A N/A 40.0 ppb (38) N/A N/A N/A 38.0
 
April 11, 2021, midnight N/A 0.0 ppb (0) 1.6 ppb (2) N/A N/A N/A 40.0 ppb (38) N/A N/A N/A 38.0
 
April 10, 2021, 11 p.m. N/A 0.0 ppb (0) 1.2 ppb (2) N/A N/A N/A 44.0 ppb (41) N/A N/A N/A 41.0
 
April 10, 2021, 10 p.m. N/A 0.1 ppb (1) 1.8 ppb (2) N/A N/A N/A 46.0 ppb (43) N/A N/A N/A 43.0
 
April 10, 2021, 9 p.m. N/A 0.1 ppb (1) 2.5 ppb (3) N/A N/A N/A 43.0 ppb (40) N/A N/A N/A 40.0
 
April 10, 2021, 8 p.m. N/A 0.4 ppb (1) 3.1 ppb (3) N/A N/A N/A 38.0 ppb (36) N/A N/A N/A 36.0
 
April 10, 2021, 7 p.m. N/A 1.3 ppb (2) 4.3 ppb (5) N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
April 10, 2021, 6 p.m. N/A 1.0 ppb (1) 3.6 ppb (4) N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
April 10, 2021, 5 p.m. N/A 1.4 ppb (2) 4.3 ppb (5) N/A N/A N/A 32.0 ppb (30) N/A N/A N/A 30.0
 
April 10, 2021, 4 p.m. N/A 1.6 ppb (2) 4.6 ppb (5) N/A N/A N/A 31.0 ppb (29) N/A N/A N/A 29.0
 
April 10, 2021, 3 p.m. N/A 1.6 ppb (2) 4.4 ppb (5) N/A N/A N/A 29.0 ppb (27) N/A N/A N/A 27.0
 
April 10, 2021, 2 p.m. N/A 1.7 ppb (2) 4.4 ppb (5) N/A N/A N/A 24.0 ppb (23) N/A N/A N/A 23.0
 
April 10, 2021, 1 p.m. N/A 1.1 ppb (2) 3.1 ppb (3) N/A N/A N/A 25.0 ppb (24) N/A N/A N/A 24.0
 
April 10, 2021, noon N/A 0.8 ppb (1) 2.9 ppb (3) N/A N/A N/A 24.0 ppb (23) N/A N/A N/A 23.0
 
April 10, 2021, 11 a.m. N/A 0.4 ppb (1) 2.1 ppb (2) N/A N/A N/A 20.0 ppb (19) N/A N/A N/A 19.0
 
April 10, 2021, 10 a.m. N/A 0.1 ppb (1) 1.4 ppb (2) N/A N/A N/A 20.0 ppb (19) N/A N/A N/A 19.0
 
April 10, 2021, 9 a.m. N/A 0.0 ppb (0) 1.1 ppb (2) N/A N/A N/A 23.0 ppb (22) N/A N/A N/A 22.0
 
April 10, 2021, 8 a.m. N/A 0.1 ppb (1) 1.0 ppb (1) N/A N/A N/A 28.0 ppb (26) N/A N/A N/A 26.0
 
April 10, 2021, 7 a.m. N/A 0.1 ppb (1) 0.9 ppb (1) N/A N/A N/A 32.0 ppb (30) N/A N/A N/A 30.0
 
April 10, 2021, 6 a.m. N/A 0.0 ppb (0) 0.5 ppb (1) N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 34.0
 
April 10, 2021, 5 a.m. N/A 0.0 ppb (0) 0.5 ppb (1) N/A N/A N/A 37.0 ppb (35) N/A N/A N/A 35.0
 
April 10, 2021, 4 a.m. N/A 0.0 ppb (0) 0.5 ppb (1) N/A N/A N/A 37.0 ppb (35) N/A N/A N/A 35.0
 
April 10, 2021, 3 a.m. N/A 0.0 ppb (0) 0.5 ppb (1) N/A N/A N/A 37.0 ppb (35) N/A N/A N/A 35.0
 
April 10, 2021, 2 a.m. N/A 0.0 ppb (0) 0.2 ppb (1) N/A N/A N/A 38.0 ppb (36) N/A N/A N/A 36.0
 
April 10, 2021, 1 a.m. N/A 0.1 ppb (1) 0.2 ppb (1) N/A N/A N/A 37.0 ppb (35) N/A N/A N/A 35.0
 
April 10, 2021, midnight N/A 0.0 ppb (0) 0.2 ppb (1) N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 34.0
 
April 9, 2021, 11 p.m. N/A 0.0 ppb (0) 0.3 ppb (1) N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 34.0
 
April 9, 2021, 10 p.m. N/A 0.1 ppb (1) 0.4 ppb (1) N/A N/A N/A 38.0 ppb (36) N/A N/A N/A 36.0
 
April 9, 2021, 9 p.m. N/A 0.1 ppb (1) 0.2 ppb (1) N/A N/A N/A 38.0 ppb (36) N/A N/A N/A 36.0
 
April 9, 2021, 8 p.m. N/A 0.1 ppb (1) 0.4 ppb (1) N/A N/A N/A 38.0 ppb (36) N/A N/A N/A 36.0
 
April 9, 2021, 7 p.m. N/A 0.1 ppb (1) 0.2 ppb (1) N/A N/A N/A 37.0 ppb (35) N/A N/A N/A 35.0
 
April 9, 2021, 6 p.m. N/A 0.2 ppb (1) 0.5 ppb (1) N/A N/A N/A 37.0 ppb (35) N/A N/A N/A 35.0
 
April 9, 2021, 5 p.m. N/A 0.2 ppb (1) 0.7 ppb (1) N/A N/A N/A 37.0 ppb (35) N/A N/A N/A 35.0
 
April 9, 2021, 4 p.m. N/A 0.4 ppb (1) 1.1 ppb (2) N/A N/A N/A 37.0 ppb (35) N/A N/A N/A 35.0
 
April 9, 2021, 3 p.m. N/A 0.2 ppb (1) 0.6 ppb (1) N/A N/A N/A 38.0 ppb (36) N/A N/A N/A 36.0
 
April 9, 2021, 2 p.m. N/A 0.1 ppb (1) 0.4 ppb (1) N/A N/A N/A 37.0 ppb (35) N/A N/A N/A 35.0
 
April 9, 2021, 1 p.m. N/A 0.3 ppb (1) 0.7 ppb (1) N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
April 9, 2021, noon N/A 0.4 ppb (1) 1.4 ppb (2) N/A N/A N/A 34.0 ppb (32) N/A N/A N/A 32.0
 
April 9, 2021, 11 a.m. N/A 0.1 ppb (1) 0.7 ppb (1) N/A N/A N/A 33.0 ppb (31) N/A N/A N/A 31.0
 
April 9, 2021, 10 a.m. N/A 0.1 ppb (1) 1.3 ppb (2) N/A N/A N/A 25.0 ppb (24) N/A N/A N/A 24.0
 
April 9, 2021, 9 a.m. N/A 0.0 ppb (0) 1.3 ppb (2) N/A N/A N/A 30.0 ppb (28) N/A N/A N/A 28.0
 
April 9, 2021, 8 a.m. N/A 0.0 ppb (0) 1.3 ppb (2) N/A N/A N/A 29.0 ppb (27) N/A N/A N/A 27.0
 
April 9, 2021, 7 a.m. N/A 0.0 ppb (0) 1.3 ppb (2) N/A N/A N/A 31.0 ppb (29) N/A N/A N/A 29.0
 
April 9, 2021, 6 a.m. N/A 0.0 ppb (0) 1.3 ppb (2) N/A N/A N/A 32.0 ppb (30) N/A N/A N/A 30.0
 
April 9, 2021, 5 a.m. N/A 0.0 ppb (0) 1.2 ppb (2) N/A N/A N/A 30.0 ppb (28) N/A N/A N/A 28.0
 
April 9, 2021, 4 a.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A N/A N/A 31.0 ppb (29) N/A N/A N/A 29.0
 
April 9, 2021, 3 a.m. N/A 0.1 ppb (1) 1.1 ppb (2) N/A N/A N/A 33.0 ppb (31) N/A N/A N/A 31.0
 
April 9, 2021, 2 a.m. N/A 0.0 ppb (0) 0.4 ppb (1) N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
April 9, 2021, 1 a.m. N/A 0.0 ppb (0) 0.2 ppb (1) N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 34.0
 
April 9, 2021, midnight N/A 0.0 ppb (0) 0.2 ppb (1) N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 34.0
 
April 8, 2021, 11 p.m. N/A 0.1 ppb (1) 0.3 ppb (1) N/A N/A N/A 38.0 ppb (36) N/A N/A N/A 36.0
 
April 8, 2021, 10 p.m. N/A 0.1 ppb (1) 0.3 ppb (1) N/A N/A N/A 38.0 ppb (36) N/A N/A N/A 36.0
 
April 8, 2021, 9 p.m. N/A 0.1 ppb (1) 0.3 ppb (1) N/A N/A N/A 40.0 ppb (38) N/A N/A N/A 38.0
 
April 8, 2021, 8 p.m. N/A 0.1 ppb (1) 0.4 ppb (1) N/A N/A N/A 40.0 ppb (38) N/A N/A N/A 38.0
 
April 8, 2021, 7 p.m. N/A 0.1 ppb (1) 0.3 ppb (1) N/A N/A N/A 40.0 ppb (38) N/A N/A N/A 38.0
 
April 8, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A N/A 36.0
 
April 8, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 34.0
 
April 8, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
April 8, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
April 8, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 34.0
 
April 8, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A N/A 32.0
 
April 8, 2021, noon N/A 0.5 ppb (1) 5.1 ppb (5) N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 34.0
 
April 8, 2021, 11 a.m. N/A 0.5 ppb (1) 3.2 ppb (4) N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 34.0
 
April 8, 2021, 10 a.m. N/A 0.4 ppb (1) 3.6 ppb (4) N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 34.0
 
April 8, 2021, 9 a.m. N/A 0.2 ppb (1) 2.1 ppb (2) N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 34.0
 
April 8, 2021, 8 a.m. N/A 0.2 ppb (1) 2.2 ppb (3) N/A N/A N/A 38.0 ppb (36) N/A N/A N/A 36.0
 
April 8, 2021, 7 a.m. N/A 0.2 ppb (1) 2.0 ppb (2) N/A N/A N/A 38.0 ppb (36) N/A N/A N/A 36.0
 
April 8, 2021, 6 a.m. N/A 0.2 ppb (1) 2.1 ppb (2) N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 34.0
 
April 8, 2021, 5 a.m. N/A 0.2 ppb (1) 2.2 ppb (3) N/A N/A N/A 38.0 ppb (36) N/A N/A N/A 36.0
 
April 8, 2021, 4 a.m. N/A 0.5 ppb (1) 5.3 ppb (5) N/A N/A N/A 30.0 ppb (28) N/A N/A N/A 28.0
 
April 8, 2021, 3 a.m. N/A 0.6 ppb (1) 5.6 ppb (6) N/A N/A N/A 29.0 ppb (27) N/A N/A N/A 27.0
 
April 8, 2021, 2 a.m. N/A 0.3 ppb (1) 2.8 ppb (3) N/A N/A N/A 34.0 ppb (32) N/A N/A N/A 32.0
 
April 8, 2021, 1 a.m. N/A 0.2 ppb (1) 1.8 ppb (2) N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 34.0
 
April 8, 2021, midnight N/A 0.2 ppb (1) 1.7 ppb (2) N/A N/A N/A 38.0 ppb (36) N/A N/A N/A 36.0
 
April 7, 2021, 11 p.m. N/A 0.2 ppb (1) 1.7 ppb (2) N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
April 7, 2021, 10 p.m. N/A 0.2 ppb (1) 1.8 ppb (2) N/A N/A N/A 37.0 ppb (35) N/A N/A N/A 35.0
 
April 7, 2021, 9 p.m. N/A 0.3 ppb (1) 2.3 ppb (3) N/A N/A N/A 38.0 ppb (36) N/A N/A N/A 36.0
 
April 7, 2021, 8 p.m. N/A 0.4 ppb (1) 2.5 ppb (3) N/A N/A N/A 38.0 ppb (36) N/A N/A N/A 36.0
 
April 7, 2021, 7 p.m. N/A 0.3 ppb (1) 2.4 ppb (3) N/A N/A N/A 39.0 ppb (37) N/A N/A N/A 37.0
 
April 7, 2021, 6 p.m. N/A 0.3 ppb (1) 2.3 ppb (3) N/A N/A N/A 39.0 ppb (37) N/A N/A N/A 37.0
 
April 7, 2021, 5 p.m. N/A 0.3 ppb (1) 2.3 ppb (3) N/A N/A N/A 38.0 ppb (36) N/A N/A N/A 36.0
 
April 7, 2021, 4 p.m. N/A 0.4 ppb (1) 2.7 ppb (3) N/A N/A N/A 38.0 ppb (36) N/A N/A N/A 36.0
 
April 7, 2021, 3 p.m. N/A 0.4 ppb (1) 2.5 ppb (3) N/A N/A N/A 37.0 ppb (35) N/A N/A N/A 35.0
 
April 7, 2021, 2 p.m. N/A 0.4 ppb (1) 2.6 ppb (3) N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
April 7, 2021, 1 p.m. N/A 0.5 ppb (1) 2.6 ppb (3) N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
April 7, 2021, noon N/A 0.8 ppb (1) 3.8 ppb (4) N/A N/A N/A 33.0 ppb (31) N/A N/A N/A 31.0
 
April 7, 2021, 11 a.m. N/A 1.1 ppb (2) 6.6 ppb (7) N/A N/A N/A 26.0 ppb (25) N/A N/A N/A 25.0
 
April 7, 2021, 10 a.m. N/A 0.9 ppb (1) 6.8 ppb (7) N/A N/A N/A 24.0 ppb (23) N/A N/A N/A 23.0
 
April 7, 2021, 9 a.m. N/A 0.4 ppb (1) 4.3 ppb (5) N/A N/A N/A N/A N/A N/A N/A 5.0
 
April 7, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A N/A 28.0
 
April 7, 2021, 7 a.m. N/A 0.4 ppb (1) 3.5 ppb (4) N/A N/A N/A 31.0 ppb (29) N/A N/A N/A 29.0
 
April 7, 2021, 6 a.m. N/A 0.4 ppb (1) 3.7 ppb (4) N/A N/A N/A 30.0 ppb (28) N/A N/A N/A 28.0
 
April 7, 2021, 5 a.m. N/A 0.3 ppb (1) 3.3 ppb (4) N/A N/A N/A 31.0 ppb (29) N/A N/A N/A 29.0
 
April 7, 2021, 4 a.m. N/A 0.3 ppb (1) 3.0 ppb (3) N/A N/A N/A 32.0 ppb (30) N/A N/A N/A 30.0
 
April 7, 2021, 3 a.m. N/A 0.3 ppb (1) 3.1 ppb (3) N/A N/A N/A 32.0 ppb (30) N/A N/A N/A 30.0
 
April 7, 2021, 2 a.m. N/A 0.3 ppb (1) 3.4 ppb (4) N/A N/A N/A 31.0 ppb (29) N/A N/A N/A 29.0
 
April 7, 2021, 1 a.m. N/A 0.2 ppb (1) 2.4 ppb (3) N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
April 7, 2021, midnight N/A 0.2 ppb (1) 2.4 ppb (3) N/A N/A N/A 34.0 ppb (32) N/A N/A N/A 32.0
 
April 6, 2021, 11 p.m. N/A 0.3 ppb (1) 2.5 ppb (3) N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
April 6, 2021, 10 p.m. N/A 0.2 ppb (1) 2.5 ppb (3) N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 34.0
 
April 6, 2021, 9 p.m. N/A 0.3 ppb (1) 2.8 ppb (3) N/A N/A N/A 37.0 ppb (35) N/A N/A N/A 35.0
 
April 6, 2021, 8 p.m. N/A 0.3 ppb (1) 3.2 ppb (4) N/A N/A N/A 39.0 ppb (37) N/A N/A N/A 37.0
 
April 6, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A N/A 38.0
 
April 6, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A N/A 36.0
 
April 6, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 34.0
 
April 6, 2021, 4 p.m. N/A 0.4 ppb (1) 3.3 ppb (4) N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
April 6, 2021, 3 p.m. N/A 0.5 ppb (1) 3.5 ppb (4) N/A N/A N/A 34.0 ppb (32) N/A N/A N/A 32.0
 
April 6, 2021, 2 p.m. N/A 0.5 ppb (1) 3.3 ppb (4) N/A N/A N/A 33.0 ppb (31) N/A N/A N/A 31.0
 
April 6, 2021, 1 p.m. N/A N/A 3.4 ppb (4) N/A N/A N/A 32.0 ppb (30) N/A N/A N/A 30.0
 
April 6, 2021, noon N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A N/A 28.0
 
April 6, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A N/A 28.0
 
April 6, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A N/A 29.0
 
April 6, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A N/A 29.0
 
April 6, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A N/A 30.0
 
April 6, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A N/A 31.0
 
April 6, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A N/A 31.0
 
April 6, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A N/A 32.0
 
April 6, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
April 6, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 34.0
 
April 6, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A N/A 35.0
 
April 6, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A N/A 36.0
 
April 6, 2021, midnight N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A N/A 36.0
 
April 5, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A N/A 35.0
 
April 5, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 34.0
 
April 5, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 34.0
 
April 5, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
April 5, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
April 5, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
April 5, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A N/A 33.0
 
April 5, 2021, 4 p.m. N/A 0.5 ppb (1) 3.3 ppb (4) N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 34.0
 
April 5, 2021, 3 p.m. N/A 0.4 ppb (1) 3.2 ppb (4) N/A N/A N/A 37.0 ppb (35) N/A N/A N/A 35.0
 
April 5, 2021, 2 p.m. N/A 0.4 ppb (1) 3.1 ppb (3) N/A N/A N/A 38.0 ppb (36) N/A N/A N/A 36.0
 
April 5, 2021, 1 p.m. N/A 0.4 ppb (1) 3.1 ppb (3) N/A N/A N/A 38.0 ppb (36) N/A N/A N/A 36.0
 
April 5, 2021, noon N/A 0.4 ppb (1) 3.2 ppb (4) N/A N/A N/A 37.0 ppb (35) N/A N/A N/A 35.0
 
April 5, 2021, 11 a.m. N/A 0.4 ppb (1) 3.2 ppb (4) N/A N/A N/A 38.0 ppb (36) N/A N/A N/A 36.0
 
April 5, 2021, 10 a.m. N/A 0.3 ppb (1) 3.0 ppb (3) N/A N/A N/A 38.0 ppb (36) N/A N/A N/A 36.0
 
April 5, 2021, 9 a.m. N/A 0.3 ppb (1) 2.8 ppb (3) N/A N/A N/A 38.0 ppb (36) N/A N/A N/A 36.0
 
April 5, 2021, 8 a.m. N/A 0.2 ppb (1) 2.6 ppb (3) N/A N/A N/A 40.0 ppb (38) N/A N/A N/A 38.0
 
April 5, 2021, 7 a.m. N/A 0.3 ppb (1) 2.8 ppb (3) N/A N/A N/A 42.0 ppb (39) N/A N/A N/A 39.0
 
April 5, 2021, 6 a.m. N/A 0.2 ppb (1) 2.9 ppb (3) N/A N/A N/A 44.0 ppb (41) N/A N/A N/A 41.0
 
April 5, 2021, 5 a.m. N/A 0.3 ppb (1) 3.2 ppb (4) N/A N/A N/A 45.0 ppb (42) N/A N/A N/A 42.0
 
April 5, 2021, 4 a.m. N/A 0.3 ppb (1) 3.5 ppb (4) N/A N/A N/A 45.0 ppb (42) N/A N/A N/A 42.0
 
April 5, 2021, 3 a.m. N/A 0.3 ppb (1) 3.5 ppb (4) N/A N/A N/A 45.0 ppb (42) N/A N/A N/A 42.0
 
April 5, 2021, 2 a.m. N/A 0.3 ppb (1) 3.5 ppb (4) N/A N/A N/A 46.0 ppb (43) N/A N/A N/A 43.0
 
April 5, 2021, 1 a.m. N/A 0.3 ppb (1) 3.6 ppb (4) N/A N/A N/A 46.0 ppb (43) N/A N/A N/A 43.0
 
April 5, 2021, midnight N/A 0.3 ppb (1) 3.7 ppb (4) N/A N/A N/A 48.0 ppb (45) N/A N/A N/A 45.0
 
April 4, 2021, 11 p.m. N/A 0.3 ppb (1) 3.9 ppb (4) N/A N/A N/A 50.0 ppb (47) N/A N/A N/A 47.0
 
April 4, 2021, 10 p.m. N/A 0.3 ppb (1) 4.2 ppb (4) N/A N/A N/A 50.0 ppb (47) N/A N/A N/A 47.0
 
April 4, 2021, 9 p.m. N/A 0.3 ppb (1) 4.4 ppb (5) N/A N/A N/A 50.0 ppb (47) N/A N/A N/A 47.0
 
April 4, 2021, 8 p.m. N/A 0.4 ppb (1) 4.6 ppb (5) N/A N/A N/A 49.0 ppb (46) N/A N/A N/A 46.0
 
April 4, 2021, 7 p.m. N/A 0.4 ppb (1) 4.8 ppb (5) N/A N/A N/A 45.0 ppb (42) N/A N/A N/A 42.0
 
April 4, 2021, 6 p.m. N/A 0.4 ppb (1) 4.5 ppb (5) N/A N/A N/A 44.0 ppb (41) N/A N/A N/A 41.0
 
April 4, 2021, 5 p.m. N/A 0.4 ppb (1) 4.3 ppb (5) N/A N/A N/A 43.0 ppb (40) N/A N/A N/A 40.0
 
April 4, 2021, 4 p.m. N/A 0.5 ppb (1) 4.3 ppb (5) N/A N/A N/A 42.0 ppb (39) N/A N/A N/A 39.0
 
April 4, 2021, 3 p.m. N/A 0.5 ppb (1) 4.6 ppb (5) N/A N/A N/A 40.0 ppb (38) N/A N/A N/A 38.0
 
April 4, 2021, 2 p.m. N/A 1.0 ppb (1) 5.8 ppb (6) N/A N/A N/A 38.0 ppb (36) N/A N/A N/A 36.0
 
April 4, 2021, 1 p.m. N/A 1.0 ppb (1) 6.0 ppb (6) N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 34.0
 
April 4, 2021, noon N/A 3.0 ppb (3) 11.6 ppb (11) N/A N/A N/A 27.0 ppb (25) N/A N/A N/A 25.0
 
April 4, 2021, 11 a.m. N/A 3.0 ppb (3) 13.9 ppb (14) N/A N/A N/A 24.0 ppb (23) N/A N/A N/A 23.0
 
April 4, 2021, 10 a.m. N/A 1.2 ppb (2) 9.6 ppb (10) N/A N/A N/A 28.0 ppb (26) N/A N/A N/A 26.0
 
April 4, 2021, 9 a.m. N/A 0.5 ppb (1) 5.6 ppb (6) N/A N/A N/A 34.0 ppb (32) N/A N/A N/A 32.0
 
April 4, 2021, 8 a.m. N/A 0.7 ppb (1) 7.9 ppb (8) N/A N/A N/A 30.0 ppb (28) N/A N/A N/A 28.0
 
April 4, 2021, 7 a.m. N/A 0.5 ppb (1) 5.3 ppb (5) N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 34.0
 
April 4, 2021, 6 a.m. N/A 0.5 ppb (1) 5.1 ppb (5) N/A N/A N/A 37.0 ppb (35) N/A N/A N/A 35.0
 
April 4, 2021, 5 a.m. N/A 0.4 ppb (1) 4.9 ppb (5) N/A N/A N/A 37.0 ppb (35) N/A N/A N/A 35.0
 
April 4, 2021, 4 a.m. N/A 0.6 ppb (1) 6.2 ppb (6) N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 34.0
 
April 4, 2021, 3 a.m. N/A 0.5 ppb (1) 5.9 ppb (6) N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 34.0