ID: 867

AQSQID: 500070007

Site Name: Underhill

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

Updated: May 24, 2022, 9:17 a.m.

Location: Underhill (Harvey Rd), VT

Reporting: True, Located: True

Current AQI: 24.0

Underhill (Harvey Rd) VT, US: 44.528389, -72.868973

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 24, 2022, 7 a.m. N/A -0.1 ppb (0) 0.1 ppb (1) N/A 0.2 ppb (1) N/A 25.0 ppb (24) N/A N/A 1.5 μg/m3 (7) 24.0
 
May 24, 2022, 6 a.m. N/A -0.1 ppb (0) 0.1 ppb (1) N/A 0.2 ppb (1) 0.0 ppb (0) 23.0 ppb (22) N/A N/A 1.3 μg/m3 (6) 22.0
 
May 24, 2022, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.01 ppb (0) N/A 1.4 μg/m3 (6) 22.0
 
May 24, 2022, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 23.0 ppb (22) 0.01 ppb (0) N/A 1.4 μg/m3 (6) 22.0
 
May 24, 2022, 4 a.m. N/A -0.1 ppb (0) 0.2 ppb (1) N/A 0.3 ppb (1) 0.0 ppb (0) 23.0 ppb (22) N/A N/A 1.6 μg/m3 (7) 22.0
 
May 24, 2022, 4 a.m. N/A -0.1 ppb (0) 0.2 ppb (1) N/A 0.3 ppb (1) 0.0 ppb (0) 23.0 ppb (22) N/A N/A 1.6 μg/m3 (7) 22.0
 
May 24, 2022, 3 a.m. N/A -0.1 ppb (0) 0.2 ppb (1) N/A 0.3 ppb (1) 0.0 ppb (0) 23.0 ppb (22) N/A N/A 1.5 μg/m3 (7) 22.0
 
May 24, 2022, 3 a.m. N/A -0.1 ppb (0) 0.2 ppb (1) N/A 0.3 ppb (1) 0.0 ppb (0) 23.0 ppb (22) N/A N/A 1.5 μg/m3 (7) 22.0
 
May 24, 2022, 2 a.m. N/A -0.1 ppb (0) 0.2 ppb (1) N/A 0.3 ppb (1) 0.0 ppb (0) 24.0 ppb (23) N/A N/A 1.6 μg/m3 (7) 23.0
 
May 24, 2022, 2 a.m. N/A -0.1 ppb (0) 0.2 ppb (1) N/A 0.3 ppb (1) 0.0 ppb (0) 24.0 ppb (23) 0.01 ppb (0) N/A 1.6 μg/m3 (7) 23.0
 
May 24, 2022, 1 a.m. N/A -0.1 ppb (0) 0.3 ppb (1) N/A 0.4 ppb (1) 0.0 ppb (0) 25.0 ppb (24) 0.01 ppb (0) N/A 1.6 μg/m3 (7) 24.0
 
May 24, 2022, 1 a.m. N/A -0.1 ppb (0) 0.3 ppb (1) N/A 0.4 ppb (1) 0.0 ppb (0) 25.0 ppb (24) 0.01 ppb (0) N/A 1.6 μg/m3 (7) 24.0
 
May 24, 2022, midnight N/A -0.1 ppb (0) 0.4 ppb (1) N/A 0.5 ppb (1) 0.0 ppb (0) 29.0 ppb (27) N/A N/A 1.6 μg/m3 (7) 27.0
 
May 24, 2022, midnight N/A -0.1 ppb (0) 0.4 ppb (1) N/A 0.5 ppb (1) 0.0 ppb (0) 29.0 ppb (27) 0.01 ppb (0) N/A 1.6 μg/m3 (7) 27.0
 
May 23, 2022, 11 p.m. N/A 0.0 ppb (0) 0.5 ppb (1) N/A 0.5 ppb (1) 0.0 ppb (0) 34.0 ppb (32) 0.01 ppb (0) N/A 1.5 μg/m3 (7) 32.0
 
May 23, 2022, 11 p.m. N/A 0.0 ppb (0) 0.5 ppb (1) N/A 0.5 ppb (1) 0.0 ppb (0) 34.0 ppb (32) 0.01 ppb (0) N/A 1.5 μg/m3 (7) 32.0
 
May 23, 2022, 9 p.m. N/A 0.0 ppb (0) 0.5 ppb (1) N/A 0.5 ppb (1) 0.0 ppb (0) 35.0 ppb (33) N/A N/A 1.4 μg/m3 (6) 33.0
 
May 23, 2022, 8 p.m. N/A 0.0 ppb (0) 0.4 ppb (1) N/A 0.4 ppb (1) 0.0 ppb (0) 35.0 ppb (33) 0.01 ppb (0) N/A 1.0 μg/m3 (5) 33.0
 
May 23, 2022, 7 p.m. N/A 0.0 ppb (0) 0.4 ppb (1) N/A 0.4 ppb (1) 0.0 ppb (0) 35.0 ppb (33) 0.02 ppb (0) N/A 1.0 μg/m3 (5) 33.0
 
May 23, 2022, 6 p.m. N/A 0.0 ppb (0) 0.3 ppb (1) N/A 0.3 ppb (1) 0.0 ppb (0) 33.0 ppb (31) 0.02 ppb (0) N/A 0.9 μg/m3 (4) 31.0
 
May 23, 2022, 3 p.m. N/A 0.0 ppb (0) 0.2 ppb (1) N/A 0.2 ppb (1) 0.0 ppb (0) 29.0 ppb (27) 0.03 ppb (0) N/A 0.6 μg/m3 (3) 27.0
 
May 23, 2022, 2 p.m. N/A 0.0 ppb (0) 0.2 ppb (1) N/A 0.2 ppb (1) 0.0 ppb (0) 29.0 ppb (27) 0.03 ppb (0) N/A 0.7 μg/m3 (3) 27.0
 
May 23, 2022, 11 a.m. N/A 0.1 ppb (1) 0.6 ppb (1) N/A 0.5 ppb (1) 0.0 ppb (0) 23.0 ppb (22) N/A N/A 1.9 μg/m3 (8) 22.0
 
May 23, 2022, 10 a.m. N/A 0.0 ppb (0) 0.4 ppb (1) N/A 0.4 ppb (1) 0.0 ppb (0) 23.0 ppb (22) 0.0 ppb (0) N/A 1.7 μg/m3 (8) 22.0
 
May 23, 2022, 10 a.m. N/A 0.0 ppb (0) 0.4 ppb (1) N/A 0.4 ppb (1) 0.0 ppb (0) 23.0 ppb (22) N/A N/A 1.7 μg/m3 (8) 22.0
 
May 23, 2022, 9 a.m. N/A -0.1 ppb (0) 0.4 ppb (1) N/A 0.5 ppb (1) 0.0 ppb (0) 23.0 ppb (22) N/A N/A 1.6 μg/m3 (7) 22.0
 
May 23, 2022, 3 a.m. N/A -0.1 ppb (0) 0.3 ppb (1) N/A 0.4 ppb (1) 0.0 ppb (0) 24.0 ppb (23) N/A N/A 3.1 μg/m3 (13) 23.0
 
May 23, 2022, 2 a.m. N/A -0.1 ppb (0) 0.3 ppb (1) N/A 0.4 ppb (1) 0.0 ppb (0) 27.0 ppb (25) N/A N/A 2.6 μg/m3 (11) 25.0
 
May 23, 2022, 1 a.m. N/A -0.1 ppb (0) 0.4 ppb (1) N/A 0.5 ppb (1) 0.0 ppb (0) 33.0 ppb (31) N/A N/A 2.0 μg/m3 (9) 31.0
 
May 23, 2022, midnight N/A -0.1 ppb (0) 0.4 ppb (1) N/A 0.5 ppb (1) 0.0 ppb (0) 33.0 ppb (31) N/A N/A 2.6 μg/m3 (11) 31.0
 
May 22, 2022, 11 p.m. N/A -0.1 ppb (0) 0.5 ppb (1) N/A 0.6 ppb (1) 0.0 ppb (0) 32.0 ppb (30) 0.01 ppb (0) N/A 3.7 μg/m3 (16) 30.0
 
May 22, 2022, 9 p.m. N/A -0.1 ppb (0) 0.5 ppb (1) N/A 0.6 ppb (1) 0.0 ppb (0) 48.0 ppb (45) 0.0 ppb (0) N/A 6.9 μg/m3 (29) 45.0
 
May 22, 2022, 8 p.m. N/A -0.1 ppb (0) 0.9 ppb (1) N/A 1.0 ppb (1) 0.0 ppb (0) 48.0 ppb (45) 0.01 ppb (0) N/A 8.9 μg/m3 (38) 45.0
 
May 22, 2022, 7 p.m. N/A -0.1 ppb (0) 0.8 ppb (1) N/A 0.9 ppb (1) 0.0 ppb (0) 47.0 ppb (44) 0.01 ppb (0) N/A 8.7 μg/m3 (37) 44.0
 
May 22, 2022, 6 p.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A 1.0 ppb (1) 0.0 ppb (0) 46.0 ppb (43) 0.01 ppb (0) N/A 8.5 μg/m3 (36) 43.0
 
May 22, 2022, 5 p.m. N/A 0.0 ppb (0) 1.0 ppb (1) N/A 1.1 ppb (2) 0.0 ppb (0) 47.0 ppb (44) 0.01 ppb (0) N/A 8.6 μg/m3 (36) 44.0
 
May 22, 2022, 4 p.m. N/A 0.0 ppb (0) 1.1 ppb (2) N/A 1.1 ppb (2) 0.0 ppb (0) 48.0 ppb (45) 0.01 ppb (0) N/A 8.8 μg/m3 (37) 45.0
 
May 22, 2022, 3 p.m. N/A 0.0 ppb (0) 1.0 ppb (1) N/A 1.0 ppb (1) 0.0 ppb (0) 47.0 ppb (44) 0.03 ppb (0) N/A 8.8 μg/m3 (37) 44.0
 
May 22, 2022, 2 p.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A 0.9 ppb (1) 0.0 ppb (0) 37.0 ppb (35) 0.03 ppb (0) N/A 9.3 μg/m3 (39) 39.0
 
May 22, 2022, 1 p.m. N/A 0.0 ppb (0) 0.7 ppb (1) N/A 0.7 ppb (1) 0.0 ppb (0) 28.0 ppb (26) 0.02 ppb (0) N/A 8.6 μg/m3 (36) 36.0
 
May 22, 2022, 1 p.m. N/A 0.0 ppb (0) 0.7 ppb (1) N/A 0.7 ppb (1) 0.0 ppb (0) 28.0 ppb (26) 0.02 ppb (0) N/A 8.6 μg/m3 (36) 36.0
 
May 22, 2022, noon N/A 0.0 ppb (0) 0.5 ppb (1) N/A 0.6 ppb (1) 0.0 ppb (0) 25.0 ppb (24) N/A N/A 6.9 μg/m3 (29) 29.0
 
May 22, 2022, 11 a.m. N/A 0.0 ppb (0) 0.5 ppb (1) N/A 0.6 ppb (1) 0.0 ppb (0) 24.0 ppb (23) N/A N/A 7.1 μg/m3 (30) 30.0
 
May 22, 2022, 10 a.m. N/A -0.1 ppb (0) 0.4 ppb (1) N/A 0.5 ppb (1) 0.0 ppb (0) 28.0 ppb (26) N/A N/A 7.5 μg/m3 (32) 32.0
 
May 22, 2022, 9 a.m. N/A -0.1 ppb (0) 0.4 ppb (1) N/A 0.5 ppb (1) 0.0 ppb (0) 30.0 ppb (28) N/A N/A 7.3 μg/m3 (31) 31.0
 
May 22, 2022, 8 a.m. N/A -0.1 ppb (0) 0.4 ppb (1) N/A 0.5 ppb (1) 0.0 ppb (0) 33.0 ppb (31) N/A N/A 6.6 μg/m3 (28) 31.0
 
May 22, 2022, 7 a.m. N/A -0.1 ppb (0) 0.5 ppb (1) N/A 0.5 ppb (1) 0.0 ppb (0) 33.0 ppb (31) 0.01 ppb (0) N/A 6.3 μg/m3 (27) 31.0
 
May 22, 2022, 5 a.m. N/A -0.1 ppb (0) 0.7 ppb (1) N/A 0.7 ppb (1) 0.0 ppb (0) 26.0 ppb (25) 0.01 ppb (0) N/A 12.7 μg/m3 (53) 53.0
 
May 22, 2022, 3 a.m. N/A -0.1 ppb (0) 0.7 ppb (1) N/A 0.8 ppb (1) 0.0 ppb (0) 28.0 ppb (26) 0.01 ppb (0) N/A 10.6 μg/m3 (45) 45.0
 
May 22, 2022, 2 a.m. N/A -0.1 ppb (0) 0.7 ppb (1) N/A 0.7 ppb (1) 0.0 ppb (0) 26.0 ppb (25) 0.01 ppb (0) N/A 11.5 μg/m3 (48) 48.0
 
May 22, 2022, 1 a.m. N/A -0.1 ppb (0) 0.7 ppb (1) N/A 0.7 ppb (1) 0.0 ppb (0) 24.0 ppb (23) 0.02 ppb (0) N/A 12.4 μg/m3 (52) 52.0
 
May 22, 2022, midnight N/A -0.1 ppb (0) 0.8 ppb (1) N/A 0.8 ppb (1) 0.0 ppb (0) 29.0 ppb (27) 0.02 ppb (0) N/A 11.9 μg/m3 (50) 50.0
 
May 21, 2022, 11 p.m. N/A -0.1 ppb (0) 0.7 ppb (1) N/A 0.8 ppb (1) 0.0 ppb (0) 34.0 ppb (32) 0.02 ppb (0) N/A 10.4 μg/m3 (44) 44.0
 
May 21, 2022, 10 p.m. N/A 0.0 ppb (0) 0.7 ppb (1) N/A 0.8 ppb (1) 0.0 ppb (0) 42.0 ppb (39) 0.02 ppb (0) N/A 10.0 μg/m3 (42) 42.0
 
May 21, 2022, 9 p.m. N/A 0.0 ppb (0) 1.2 ppb (2) N/A 1.2 ppb (2) 0.0 ppb (0) 47.0 ppb (44) 0.03 ppb (0) N/A 11.4 μg/m3 (48) 48.0
 
May 21, 2022, 8 p.m. N/A 0.0 ppb (0) 1.3 ppb (2) N/A 1.4 ppb (2) 0.0 ppb (0) 47.0 ppb (44) 0.02 ppb (0) N/A 11.7 μg/m3 (49) 49.0
 
May 21, 2022, 7 p.m. N/A 0.0 ppb (0) 1.4 ppb (2) N/A 1.4 ppb (2) 0.0 ppb (0) 49.0 ppb (46) 0.01 ppb (0) N/A 11.6 μg/m3 (49) 49.0
 
May 21, 2022, 6 p.m. N/A 0.0 ppb (0) 1.5 ppb (2) N/A 1.5 ppb (2) 0.0 ppb (0) 49.0 ppb (46) 0.01 ppb (0) N/A 11.4 μg/m3 (48) 48.0
 
May 21, 2022, 5 p.m. N/A 0.0 ppb (0) 1.5 ppb (2) N/A 1.5 ppb (2) 0.0 ppb (0) 48.0 ppb (45) 0.01 ppb (0) N/A 11.3 μg/m3 (48) 48.0
 
May 21, 2022, 4 p.m. N/A 0.0 ppb (0) 1.4 ppb (2) N/A 1.4 ppb (2) 0.0 ppb (0) 45.0 ppb (42) 0.02 ppb (0) N/A 10.6 μg/m3 (45) 45.0
 
May 21, 2022, 3 p.m. N/A 0.0 ppb (0) 1.3 ppb (2) N/A 1.3 ppb (2) 0.0 ppb (0) 41.0 ppb (38) 0.02 ppb (0) N/A 10.4 μg/m3 (44) 44.0
 
May 21, 2022, 2 p.m. N/A 0.0 ppb (0) 1.2 ppb (2) N/A 1.2 ppb (2) 0.0 ppb (0) 37.0 ppb (35) 0.03 ppb (0) N/A 9.7 μg/m3 (41) 41.0
 
May 21, 2022, 1 p.m. N/A 0.0 ppb (0) 1.0 ppb (1) N/A 1.0 ppb (1) 0.0 ppb (0) 35.0 ppb (33) 0.03 ppb (0) N/A 9.8 μg/m3 (41) 41.0
 
May 21, 2022, 1 p.m. N/A 0.0 ppb (0) 1.0 ppb (1) N/A 1.0 ppb (1) 0.0 ppb (0) 35.0 ppb (33) 0.03 ppb (0) N/A 9.8 μg/m3 (41) 41.0
 
May 21, 2022, noon N/A 0.0 ppb (0) 0.9 ppb (1) N/A 1.0 ppb (1) 0.0 ppb (0) 34.0 ppb (32) 0.02 ppb (0) N/A 9.7 μg/m3 (41) 41.0
 
May 21, 2022, 10 a.m. N/A -0.1 ppb (0) 1.0 ppb (1) N/A 1.0 ppb (1) 0.0 ppb (0) 41.0 ppb (38) 0.02 ppb (0) N/A 9.9 μg/m3 (42) 42.0
 
May 21, 2022, 9 a.m. N/A -0.1 ppb (0) 1.0 ppb (1) N/A 1.1 ppb (2) 0.0 ppb (0) 43.0 ppb (40) 0.02 ppb (0) N/A 10.4 μg/m3 (44) 44.0
 
May 21, 2022, 8 a.m. N/A -0.1 ppb (0) 1.0 ppb (1) N/A 1.1 ppb (2) 0.0 ppb (0) 43.0 ppb (40) 0.01 ppb (0) N/A 10.0 μg/m3 (42) 42.0
 
May 21, 2022, 4 a.m. N/A -0.1 ppb (0) 1.1 ppb (2) N/A 1.2 ppb (2) 0.0 ppb (0) 51.0 ppb (48) 0.02 ppb (0) N/A 8.1 μg/m3 (34) 48.0
 
May 21, 2022, 3 a.m. N/A -0.1 ppb (0) 1.2 ppb (2) N/A 1.3 ppb (2) 0.0 ppb (0) 51.0 ppb (48) 0.03 ppb (0) N/A 8.2 μg/m3 (35) 48.0
 
May 21, 2022, 2 a.m. N/A -0.1 ppb (0) 1.1 ppb (2) N/A 1.2 ppb (2) 0.0 ppb (0) 53.0 ppb (50) 0.02 ppb (0) N/A 8.2 μg/m3 (35) 50.0
 
May 21, 2022, 1 a.m. N/A 0.0 ppb (0) 1.3 ppb (2) N/A 1.3 ppb (2) 0.0 ppb (0) 56.0 ppb (55) 0.03 ppb (0) N/A 8.4 μg/m3 (36) 55.0
 
May 21, 2022, midnight N/A -0.1 ppb (0) 1.3 ppb (2) N/A 1.3 ppb (2) 0.0 ppb (0) 54.0 ppb (50) 0.04 ppb (0) N/A 7.9 μg/m3 (33) 50.0
 
May 20, 2022, 11 p.m. N/A -0.1 ppb (0) 0.9 ppb (1) N/A 1.0 ppb (1) 0.0 ppb (0) 48.0 ppb (45) 0.02 ppb (0) N/A 7.1 μg/m3 (30) 45.0
 
May 20, 2022, 10 p.m. N/A -0.1 ppb (0) 0.8 ppb (1) N/A 0.8 ppb (1) 0.0 ppb (0) 44.0 ppb (41) 0.0 ppb (0) N/A 6.6 μg/m3 (28) 41.0
 
May 20, 2022, 9 p.m. N/A -0.1 ppb (0) 0.8 ppb (1) N/A 0.8 ppb (1) 0.0 ppb (0) 43.0 ppb (40) 0.0 ppb (0) N/A 6.5 μg/m3 (28) 40.0
 
May 20, 2022, 7 p.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A 0.9 ppb (1) 0.0 ppb (0) 42.0 ppb (39) N/A N/A 5.6 μg/m3 (24) 39.0
 
May 20, 2022, 6 p.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A 0.9 ppb (1) 0.0 ppb (0) 42.0 ppb (39) N/A N/A 5.3 μg/m3 (23) 39.0
 
May 20, 2022, 5 p.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A 0.9 ppb (1) 0.0 ppb (0) 43.0 ppb (40) N/A N/A 4.9 μg/m3 (21) 40.0
 
May 20, 2022, 4 p.m. N/A 0.0 ppb (0) 1.0 ppb (1) N/A 1.0 ppb (1) 0.0 ppb (0) 45.0 ppb (42) N/A N/A 4.6 μg/m3 (20) 42.0
 
May 20, 2022, 3 p.m. N/A 0.0 ppb (0) 0.8 ppb (1) N/A 0.8 ppb (1) 0.0 ppb (0) 39.0 ppb (37) N/A N/A 3.7 μg/m3 (16) 37.0
 
May 20, 2022, 2 p.m. N/A 0.0 ppb (0) 0.7 ppb (1) N/A 0.7 ppb (1) 0.0 ppb (0) 34.0 ppb (32) N/A N/A 3.1 μg/m3 (13) 32.0
 
May 20, 2022, 1 p.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A 0.6 ppb (1) 0.0 ppb (0) 31.0 ppb (29) N/A N/A 2.7 μg/m3 (12) 29.0
 
May 20, 2022, 11 a.m. N/A 0.0 ppb (0) 0.4 ppb (1) N/A 0.5 ppb (1) 0.0 ppb (0) 30.0 ppb (28) N/A N/A 2.2 μg/m3 (10) 28.0
 
May 20, 2022, 10 a.m. N/A -0.1 ppb (0) 0.3 ppb (1) N/A 0.3 ppb (1) 0.0 ppb (0) 27.0 ppb (25) N/A N/A 2.7 μg/m3 (12) 25.0
 
May 20, 2022, 9 a.m. N/A -0.1 ppb (0) 0.3 ppb (1) N/A 0.3 ppb (1) 0.0 ppb (0) 25.0 ppb (24) 0.01 ppb (0) N/A 3.3 μg/m3 (14) 24.0
 
May 20, 2022, 8 a.m. N/A -0.1 ppb (0) 0.4 ppb (1) N/A 0.5 ppb (1) 0.0 ppb (0) N/A N/A N/A 3.5 μg/m3 (15) 15.0
 
May 20, 2022, 7 a.m. N/A -0.1 ppb (0) 0.4 ppb (1) N/A 0.5 ppb (1) N/A 21.0 ppb (20) N/A N/A 3.5 μg/m3 (15) 20.0
 
May 20, 2022, 6 a.m. N/A -0.1 ppb (0) 0.4 ppb (1) N/A 0.5 ppb (1) 0.0 ppb (0) 24.0 ppb (23) N/A N/A 3.4 μg/m3 (15) 23.0
 
May 20, 2022, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (26) N/A N/A 3.7 μg/m3 (16) 26.0
 
May 20, 2022, 4 a.m. N/A -0.1 ppb (0) 0.4 ppb (1) N/A 0.5 ppb (1) 0.0 ppb (0) 29.0 ppb (27) N/A N/A 3.4 μg/m3 (15) 27.0
 
May 20, 2022, 3 a.m. N/A -0.1 ppb (0) 0.5 ppb (1) N/A 0.6 ppb (1) 0.0 ppb (0) 30.0 ppb (28) N/A N/A 3.3 μg/m3 (14) 28.0
 
May 20, 2022, 2 a.m. N/A -0.2 ppb (0) 0.8 ppb (1) N/A 1.1 ppb (2) 0.0 ppb (0) 26.0 ppb (25) N/A N/A 3.4 μg/m3 (15) 25.0
 
May 20, 2022, 1 a.m. N/A -0.1 ppb (0) 1.1 ppb (2) N/A 1.2 ppb (2) 0.0 ppb (0) 25.0 ppb (24) N/A N/A 3.2 μg/m3 (14) 24.0
 
May 20, 2022, 1 a.m. N/A -0.1 ppb (0) 1.1 ppb (2) N/A 1.2 ppb (2) 0.0 ppb (0) 25.0 ppb (24) N/A N/A 3.2 μg/m3 (14) 24.0
 
May 20, 2022, midnight N/A -0.1 ppb (0) 1.2 ppb (2) N/A 1.3 ppb (2) 0.0 ppb (0) 27.0 ppb (25) N/A N/A 2.4 μg/m3 (10) 25.0
 
May 20, 2022, midnight N/A -0.1 ppb (0) 1.2 ppb (2) N/A 1.3 ppb (2) 0.0 ppb (0) 27.0 ppb (25) 0.01 ppb (0) N/A 2.4 μg/m3 (10) 25.0
 
May 19, 2022, 11 p.m. N/A -0.1 ppb (0) 1.1 ppb (2) N/A 1.1 ppb (2) 0.0 ppb (0) 26.0 ppb (25) 0.01 ppb (0) N/A 2.5 μg/m3 (11) 25.0
 
May 19, 2022, 10 p.m. N/A -0.1 ppb (0) 0.9 ppb (1) N/A 0.9 ppb (1) 0.0 ppb (0) 19.0 ppb (18) N/A N/A 2.6 μg/m3 (11) 18.0
 
May 19, 2022, 9 p.m. N/A 0.0 ppb (0) 0.8 ppb (1) N/A 0.8 ppb (1) 0.0 ppb (0) 27.0 ppb (25) 0.01 ppb (0) N/A 2.5 μg/m3 (11) 25.0
 
May 19, 2022, 8 p.m. N/A -0.1 ppb (0) 0.9 ppb (1) N/A 0.9 ppb (1) 0.0 ppb (0) 35.0 ppb (33) 0.01 ppb (0) N/A 2.0 μg/m3 (9) 33.0
 
May 19, 2022, 7 p.m. N/A 0.0 ppb (0) 0.8 ppb (1) N/A 0.9 ppb (1) 0.0 ppb (0) 40.0 ppb (38) N/A N/A 1.6 μg/m3 (7) 38.0
 
May 19, 2022, 7 p.m. N/A 0.0 ppb (0) 0.8 ppb (1) N/A 0.9 ppb (1) 0.0 ppb (0) 40.0 ppb (38) N/A N/A 1.6 μg/m3 (7) 38.0
 
May 19, 2022, 4 p.m. N/A -0.1 ppb (0) 0.6 ppb (1) N/A 0.7 ppb (1) N/A 45.0 ppb (42) N/A N/A 4.4 μg/m3 (19) 42.0
 
May 19, 2022, 2 p.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A 0.6 ppb (1) 0.0 ppb (0) 45.0 ppb (42) 0.01 ppb (0) N/A 4.3 μg/m3 (18) 42.0
 
May 19, 2022, 6 a.m. N/A -0.1 ppb (0) 0.2 ppb (1) N/A 0.4 ppb (1) 0.0 ppb (0) 40.0 ppb (38) N/A N/A 4.2 μg/m3 (18) 38.0
 
May 19, 2022, 5 a.m. N/A -0.1 ppb (0) 0.2 ppb (1) N/A 0.3 ppb (1) 0.0 ppb (0) 32.0 ppb (30) N/A N/A 4.1 μg/m3 (18) 30.0
 
May 19, 2022, 4 a.m. N/A -0.1 ppb (0) 0.2 ppb (1) N/A 0.3 ppb (1) 0.0 ppb (0) 33.0 ppb (31) N/A N/A 4.0 μg/m3 (17) 31.0
 
May 19, 2022, 3 a.m. N/A -0.1 ppb (0) 0.3 ppb (1) N/A 0.3 ppb (1) 0.0 ppb (0) 34.0 ppb (32) N/A N/A 3.9 μg/m3 (17) 32.0
 
May 19, 2022, 2 a.m. N/A -0.1 ppb (0) 0.3 ppb (1) N/A 0.4 ppb (1) 0.0 ppb (0) 34.0 ppb (32) N/A N/A 4.0 μg/m3 (17) 32.0
 
May 19, 2022, 1 a.m. N/A -0.1 ppb (0) 0.3 ppb (1) N/A 0.4 ppb (1) 0.0 ppb (0) 35.0 ppb (33) N/A N/A 4.1 μg/m3 (18) 33.0
 
May 18, 2022, 11 p.m. N/A -0.1 ppb (0) 0.4 ppb (1) N/A 0.5 ppb (1) 0.0 ppb (0) 42.0 ppb (39) N/A N/A 4.3 μg/m3 (18) 39.0
 
May 18, 2022, 10 p.m. N/A -0.1 ppb (0) 0.4 ppb (1) N/A 0.5 ppb (1) 0.0 ppb (0) 47.0 ppb (44) 0.0 ppb (0) N/A 4.2 μg/m3 (18) 44.0
 
May 18, 2022, 9 p.m. N/A 0.0 ppb (0) 0.5 ppb (1) N/A 0.5 ppb (1) 0.0 ppb (0) 48.0 ppb (45) 0.0 ppb (0) N/A 4.1 μg/m3 (18) 45.0
 
May 18, 2022, 8 p.m. N/A 0.0 ppb (0) 0.5 ppb (1) N/A 0.5 ppb (1) 0.0 ppb (0) 49.0 ppb (46) 0.0 ppb (0) N/A 3.9 μg/m3 (17) 46.0
 
May 18, 2022, 7 p.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A 0.6 ppb (1) 0.0 ppb (0) 51.0 ppb (48) 0.0 ppb (0) N/A 4.0 μg/m3 (17) 48.0
 
May 18, 2022, 5 p.m. N/A 0.0 ppb (0) 0.8 ppb (1) N/A 0.8 ppb (1) 0.0 ppb (0) 47.0 ppb (44) 0.0 ppb (0) N/A 3.5 μg/m3 (15) 44.0
 
May 18, 2022, 4 p.m. N/A 0.2 ppb (1) 1.2 ppb (2) N/A 1.0 ppb (1) 0.0 ppb (0) 45.0 ppb (42) 0.01 ppb (0) N/A 3.4 μg/m3 (15) 42.0
 
May 18, 2022, 4 p.m. N/A 0.2 ppb (1) 1.2 ppb (2) N/A 1.0 ppb (1) 0.0 ppb (0) 45.0 ppb (42) 0.01 ppb (0) N/A 3.4 μg/m3 (15) 42.0
 
May 18, 2022, 3 p.m. N/A 0.1 ppb (1) 0.9 ppb (1) N/A 0.8 ppb (1) 0.0 ppb (0) 43.0 ppb (40) 0.0 ppb (0) N/A 3.4 μg/m3 (15) 40.0
 
May 18, 2022, 3 p.m. N/A 0.1 ppb (1) 0.9 ppb (1) N/A 0.8 ppb (1) 0.0 ppb (0) 43.0 ppb (40) 0.0 ppb (0) N/A 3.4 μg/m3 (15) 40.0
 
May 18, 2022, 2 p.m. N/A 0.3 ppb (1) 1.2 ppb (2) N/A 0.9 ppb (1) 0.0 ppb (0) 41.0 ppb (38) 0.01 ppb (0) N/A 3.2 μg/m3 (14) 38.0
 
May 18, 2022, 2 p.m. N/A 0.3 ppb (1) 1.2 ppb (2) N/A 0.9 ppb (1) 0.0 ppb (0) 41.0 ppb (38) 0.01 ppb (0) N/A 3.2 μg/m3 (14) 38.0
 
May 18, 2022, 1 p.m. N/A 0.1 ppb (1) 0.8 ppb (1) N/A 0.7 ppb (1) 0.0 ppb (0) 39.0 ppb (37) 0.01 ppb (0) N/A 3.3 μg/m3 (14) 37.0
 
May 18, 2022, 1 p.m. N/A 0.1 ppb (1) 0.8 ppb (1) N/A 0.7 ppb (1) 0.0 ppb (0) 39.0 ppb (37) 0.01 ppb (0) N/A 3.3 μg/m3 (14) 37.0
 
May 18, 2022, noon N/A 0.0 ppb (0) 0.6 ppb (1) N/A 0.5 ppb (1) 0.0 ppb (0) 39.0 ppb (37) 0.01 ppb (0) N/A 3.4 μg/m3 (15) 37.0
 
May 18, 2022, noon N/A 0.0 ppb (0) 0.6 ppb (1) N/A 0.5 ppb (1) 0.0 ppb (0) 39.0 ppb (37) 0.01 ppb (0) N/A 3.4 μg/m3 (15) 37.0
 
May 18, 2022, 11 a.m. N/A 0.3 ppb (1) 1.4 ppb (2) N/A 1.1 ppb (2) 0.0 ppb (0) 37.0 ppb (35) 0.01 ppb (0) N/A 3.5 μg/m3 (15) 35.0
 
May 18, 2022, 10 a.m. N/A -0.1 ppb (0) 0.2 ppb (1) N/A 0.3 ppb (1) 0.0 ppb (0) 37.0 ppb (35) 0.01 ppb (0) N/A 3.7 μg/m3 (16) 35.0
 
May 18, 2022, 2 a.m. N/A -0.1 ppb (0) 0.2 ppb (1) N/A 0.3 ppb (1) 0.0 ppb (0) 25.0 ppb (24) N/A N/A 2.7 μg/m3 (12) 24.0
 
May 18, 2022, 1 a.m. N/A -0.1 ppb (0) 0.1 ppb (1) N/A 0.2 ppb (1) N/A 23.0 ppb (22) N/A N/A 2.0 μg/m3 (9) 22.0
 
May 18, 2022, midnight N/A -0.1 ppb (0) 0.1 ppb (1) N/A 0.2 ppb (1) 0.0 ppb (0) N/A N/A N/A 1.8 μg/m3 (8) 8.0
 
May 17, 2022, 11 p.m. N/A -0.1 ppb (0) 0.3 ppb (1) N/A 0.3 ppb (1) 0.0 ppb (0) 22.0 ppb (21) N/A N/A 1.3 μg/m3 (6) 21.0
 
May 17, 2022, 10 p.m. N/A -0.1 ppb (0) 0.4 ppb (1) N/A 0.5 ppb (1) 0.0 ppb (0) 22.0 ppb (21) N/A N/A 1.5 μg/m3 (7) 21.0
 
May 17, 2022, 9 p.m. N/A -0.1 ppb (0) 0.3 ppb (1) N/A 0.4 ppb (1) 0.0 ppb (0) 24.0 ppb (23) N/A N/A 1.3 μg/m3 (6) 23.0
 
May 17, 2022, 9 p.m. N/A -0.1 ppb (0) 0.3 ppb (1) N/A 0.4 ppb (1) 0.0 ppb (0) 24.0 ppb (23) N/A N/A 1.3 μg/m3 (6) 23.0
 
May 17, 2022, 8 p.m. N/A -0.1 ppb (0) 0.3 ppb (1) N/A 0.3 ppb (1) 0.0 ppb (0) 25.0 ppb (24) N/A N/A 1.6 μg/m3 (7) 24.0
 
May 17, 2022, 7 p.m. N/A 0.0 ppb (0) 0.4 ppb (1) N/A 0.4 ppb (1) 0.0 ppb (0) 25.0 ppb (24) N/A N/A 2.3 μg/m3 (10) 24.0
 
May 17, 2022, 7 p.m. N/A 0.0 ppb (0) 0.4 ppb (1) N/A 0.4 ppb (1) 0.0 ppb (0) 25.0 ppb (24) N/A N/A 2.3 μg/m3 (10) 24.0
 
May 17, 2022, 6 p.m. N/A 0.0 ppb (0) 0.4 ppb (1) N/A 0.4 ppb (1) 0.0 ppb (0) 26.0 ppb (25) N/A N/A 2.6 μg/m3 (11) 25.0
 
May 17, 2022, 6 p.m. N/A 0.0 ppb (0) 0.4 ppb (1) N/A 0.4 ppb (1) 0.0 ppb (0) 26.0 ppb (25) N/A N/A 2.6 μg/m3 (11) 25.0
 
May 17, 2022, 5 p.m. N/A 0.0 ppb (0) 0.4 ppb (1) N/A 0.5 ppb (1) 0.0 ppb (0) 29.0 ppb (27) N/A N/A 3.3 μg/m3 (14) 27.0
 
May 17, 2022, 5 p.m. N/A 0.0 ppb (0) 0.4 ppb (1) N/A 0.5 ppb (1) 0.0 ppb (0) 29.0 ppb (27) N/A N/A 3.3 μg/m3 (14) 27.0
 
May 17, 2022, 4 p.m. N/A 0.2 ppb (1) 1.7 ppb (2) N/A 1.5 ppb (2) 0.0 ppb (0) 33.0 ppb (31) N/A N/A 3.7 μg/m3 (16) 31.0
 
May 17, 2022, 4 p.m. N/A 0.2 ppb (1) 1.7 ppb (2) N/A 1.5 ppb (2) 0.0 ppb (0) 33.0 ppb (31) N/A N/A 3.7 μg/m3 (16) 31.0
 
May 17, 2022, 3 p.m. N/A 0.0 ppb (0) 0.4 ppb (1) N/A 0.5 ppb (1) 0.0 ppb (0) 30.0 ppb (28) N/A N/A 2.5 μg/m3 (11) 28.0
 
May 17, 2022, 3 p.m. N/A 0.0 ppb (0) 0.4 ppb (1) N/A 0.5 ppb (1) 0.0 ppb (0) 30.0 ppb (28) N/A N/A 2.5 μg/m3 (11) 28.0
 
May 17, 2022, 2 p.m. N/A 0.0 ppb (0) 0.5 ppb (1) N/A 0.5 ppb (1) 0.0 ppb (0) 31.0 ppb (29) N/A N/A 2.1 μg/m3 (9) 29.0
 
May 17, 2022, noon N/A 0.0 ppb (0) 0.4 ppb (1) N/A 0.4 ppb (1) 0.0 ppb (0) 33.0 ppb (31) N/A N/A 3.0 μg/m3 (13) 31.0
 
May 17, 2022, noon N/A 0.0 ppb (0) 0.4 ppb (1) N/A 0.4 ppb (1) 0.0 ppb (0) 33.0 ppb (31) N/A N/A 3.0 μg/m3 (13) 31.0
 
May 17, 2022, 10 a.m. N/A -0.1 ppb (0) 0.2 ppb (1) N/A 0.3 ppb (1) 0.0 ppb (0) 37.0 ppb (35) N/A N/A 2.6 μg/m3 (11) 35.0
 
May 17, 2022, 10 a.m. N/A -0.1 ppb (0) 0.2 ppb (1) N/A 0.3 ppb (1) 0.0 ppb (0) 37.0 ppb (35) N/A N/A 2.6 μg/m3 (11) 35.0
 
May 17, 2022, 9 a.m. N/A -0.1 ppb (0) 0.2 ppb (1) N/A 0.3 ppb (1) 0.0 ppb (0) 39.0 ppb (37) N/A N/A 2.2 μg/m3 (10) 37.0
 
May 17, 2022, 8 a.m. N/A -0.1 ppb (0) 0.3 ppb (1) N/A 0.5 ppb (1) 0.0 ppb (0) 38.0 ppb (36) N/A N/A 1.3 μg/m3 (6) 36.0
 
May 17, 2022, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 34.0 ppb (32) N/A N/A 0.9 μg/m3 (4) 32.0
 
May 17, 2022, 4 a.m. N/A -0.1 ppb (0) 0.4 ppb (1) N/A 0.5 ppb (1) 0.0 ppb (0) 34.0 ppb (32) N/A N/A 1.8 μg/m3 (8) 32.0
 
May 17, 2022, 3 a.m. N/A -0.1 ppb (0) 0.7 ppb (1) N/A 0.7 ppb (1) 0.0 ppb (0) 39.0 ppb (37) N/A N/A 3.5 μg/m3 (15) 37.0
 
May 17, 2022, 2 a.m. N/A -0.1 ppb (0) 0.7 ppb (1) N/A 0.8 ppb (1) 0.0 ppb (0) 41.0 ppb (38) N/A N/A 3.1 μg/m3 (13) 38.0
 
May 17, 2022, 1 a.m. N/A -0.1 ppb (0) 0.7 ppb (1) N/A 0.8 ppb (1) 0.0 ppb (0) 42.0 ppb (39) N/A N/A 2.4 μg/m3 (10) 39.0
 
May 17, 2022, midnight N/A -0.1 ppb (0) 0.9 ppb (1) N/A 0.9 ppb (1) 0.0 ppb (0) 45.0 ppb (42) N/A N/A 1.8 μg/m3 (8) 42.0
 
May 16, 2022, 11 p.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A 0.9 ppb (1) 0.0 ppb (0) 44.0 ppb (41) N/A N/A 2.4 μg/m3 (10) 41.0
 
May 16, 2022, 10 p.m. N/A -0.1 ppb (0) 0.6 ppb (1) N/A 0.7 ppb (1) 0.0 ppb (0) 43.0 ppb (40) N/A N/A 4.6 μg/m3 (20) 40.0
 
May 16, 2022, 9 p.m. N/A 0.0 ppb (0) 0.5 ppb (1) N/A 0.5 ppb (1) 0.0 ppb (0) 43.0 ppb (40) N/A N/A 5.0 μg/m3 (21) 40.0
 
May 16, 2022, 8 p.m. N/A -0.1 ppb (0) 0.5 ppb (1) N/A 0.5 ppb (1) 0.0 ppb (0) 32.0 ppb (30) N/A N/A 5.4 μg/m3 (23) 30.0
 
May 16, 2022, 7 p.m. N/A -0.1 ppb (0) 0.5 ppb (1) N/A 0.5 ppb (1) 0.0 ppb (0) 37.0 ppb (35) N/A N/A 5.5 μg/m3 (23) 35.0
 
May 16, 2022, 6 p.m. N/A 0.2 ppb (1) 1.2 ppb (2) N/A 1.0 ppb (1) 0.0 ppb (0) 37.0 ppb (35) N/A N/A 6.4 μg/m3 (27) 35.0
 
May 16, 2022, 5 p.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A 0.7 ppb (1) 0.0 ppb (0) 40.0 ppb (38) N/A N/A 6.0 μg/m3 (25) 38.0
 
May 16, 2022, 4 p.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A 0.9 ppb (1) 0.0 ppb (0) 40.0 ppb (38) N/A N/A 5.5 μg/m3 (23) 38.0