AQSQID: 500070007

Site Name: Underhill

Location: Underhill (Harvey Rd), VT

Reporting: True, Located: True

Current AQI: 26.0

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
Nov. 30, 2019, 7 a.m. N/A 0.0 ppb (0) 1.3 ppb (1) N/A 1.3 ppb (1) N/A 34.0 ppb (26) 0.14 ppb (2) N/A 4.8 μg/m3 (20) 26.0
 
Nov. 30, 2019, 6 a.m. N/A 0.0 ppb (0) 1.6 ppb (1) N/A 1.5 ppb (1) 0.0 ppb (0) N/A 0.14 ppb (2) N/A 5.7 μg/m3 (24) 24.0
 
Nov. 30, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.14 ppb (2) N/A 5.7 μg/m3 (24) 24.0
 
Nov. 30, 2019, 4 a.m. N/A 0.0 ppb (0) 2.1 ppb (2) N/A 2.1 ppb (2) 0.0 ppb (0) 30.0 ppb (23) 0.14 ppb (2) N/A 5.9 μg/m3 (25) 25.0
 
Nov. 30, 2019, 3 a.m. N/A 0.0 ppb (0) 1.8 ppb (2) N/A 1.8 ppb (2) 0.0 ppb (0) 30.0 ppb (23) 0.14 ppb (2) N/A 5.6 μg/m3 (23) 23.0
 
Nov. 30, 2019, 2 a.m. N/A 0.0 ppb (0) 1.2 ppb (1) N/A 1.2 ppb (1) 0.0 ppb (0) 30.0 ppb (23) 0.14 ppb (2) N/A 4.1 μg/m3 (17) 23.0
 
Nov. 30, 2019, 1 a.m. N/A 0.0 ppb (0) 1.3 ppb (1) N/A 1.2 ppb (1) 0.0 ppb (0) 30.0 ppb (23) 0.13 ppb (1) N/A 4.8 μg/m3 (20) 23.0
 
Nov. 30, 2019, midnight N/A 0.0 ppb (0) 1.2 ppb (1) N/A 1.2 ppb (1) 0.0 ppb (0) 30.0 ppb (23) 0.13 ppb (1) N/A 5.1 μg/m3 (21) 23.0
 
Nov. 29, 2019, 11 p.m. N/A 0.0 ppb (0) 1.2 ppb (1) N/A 1.2 ppb (1) 0.0 ppb (0) 30.0 ppb (23) 0.14 ppb (2) N/A 4.9 μg/m3 (20) 23.0
 
Nov. 29, 2019, 10 p.m. N/A 0.0 ppb (0) 1.3 ppb (1) N/A 1.2 ppb (1) 0.0 ppb (0) 30.0 ppb (23) 0.13 ppb (1) N/A 4.8 μg/m3 (20) 23.0
 
Nov. 29, 2019, 9 p.m. N/A 0.0 ppb (0) 1.2 ppb (1) N/A 1.2 ppb (1) 0.0 ppb (0) 30.0 ppb (23) 0.13 ppb (1) N/A 4.6 μg/m3 (19) 23.0
 
Nov. 29, 2019, 8 p.m. N/A 0.1 ppb (0) 1.5 ppb (1) N/A 1.4 ppb (1) 0.0 ppb (0) 29.0 ppb (22) 0.14 ppb (2) N/A 4.7 μg/m3 (20) 22.0
 
Nov. 29, 2019, 7 p.m. N/A 0.1 ppb (0) 1.7 ppb (2) N/A 1.6 ppb (1) 0.0 ppb (0) 29.0 ppb (22) 0.14 ppb (2) N/A 2.5 μg/m3 (10) 22.0
 
Nov. 29, 2019, 6 p.m. N/A 0.1 ppb (0) 1.5 ppb (1) N/A 1.4 ppb (1) 0.0 ppb (0) 29.0 ppb (22) 0.13 ppb (1) N/A 1.7 μg/m3 (7) 22.0
 
Nov. 29, 2019, 5 p.m. N/A 0.2 ppb (0) 1.6 ppb (1) N/A 1.4 ppb (1) 0.0 ppb (0) 29.0 ppb (22) 0.13 ppb (1) N/A 2.3 μg/m3 (10) 22.0
 
Nov. 29, 2019, 4 p.m. N/A 0.1 ppb (0) 1.1 ppb (1) N/A 1.0 ppb (1) 0.0 ppb (0) 29.0 ppb (22) 0.13 ppb (1) N/A 3.0 μg/m3 (12) 22.0
 
Nov. 29, 2019, 3 p.m. N/A 0.1 ppb (0) 1.0 ppb (1) N/A 0.9 ppb (1) 0.0 ppb (0) 27.0 ppb (21) 0.13 ppb (1) N/A 4.3 μg/m3 (18) 21.0
 
Nov. 29, 2019, 2 p.m. N/A 0.1 ppb (0) 0.9 ppb (1) N/A 0.8 ppb (1) 0.0 ppb (0) 27.0 ppb (21) 0.13 ppb (1) N/A 3.9 μg/m3 (16) 21.0
 
Nov. 29, 2019, 1 p.m. N/A 0.1 ppb (0) 1.3 ppb (1) N/A 1.2 ppb (1) 0.0 ppb (0) 27.0 ppb (21) 0.13 ppb (1) N/A 4.0 μg/m3 (17) 21.0
 
Nov. 29, 2019, noon N/A 0.1 ppb (0) 1.3 ppb (1) N/A 1.2 ppb (1) 0.0 ppb (0) 26.0 ppb (20) 0.13 ppb (1) N/A 4.3 μg/m3 (18) 20.0
 
Nov. 29, 2019, 11 a.m. N/A 0.0 ppb (0) 1.1 ppb (1) N/A 1.1 ppb (1) 0.0 ppb (0) 27.0 ppb (21) 0.12 ppb (1) N/A 3.9 μg/m3 (16) 21.0
 
Nov. 29, 2019, 10 a.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A 0.4 ppb (0) 0.0 ppb (0) 28.0 ppb (22) 0.13 ppb (1) N/A 2.3 μg/m3 (10) 22.0
 
Nov. 29, 2019, 9 a.m. N/A 0.0 ppb (0) 0.5 ppb (0) N/A 0.5 ppb (0) 0.0 ppb (0) 28.0 ppb (22) 0.12 ppb (1) N/A 3.3 μg/m3 (14) 22.0
 
Nov. 29, 2019, 8 a.m. N/A 0.0 ppb (0) 1.4 ppb (1) N/A 1.4 ppb (1) 0.0 ppb (0) 27.0 ppb (21) N/A N/A 4.5 μg/m3 (19) 21.0
 
Nov. 29, 2019, 7 a.m. N/A 0.0 ppb (0) 1.0 ppb (1) N/A 1.0 ppb (1) N/A 29.0 ppb (22) 0.14 ppb (2) N/A 3.6 μg/m3 (15) 22.0
 
Nov. 29, 2019, 6 a.m. N/A 0.0 ppb (0) 1.4 ppb (1) N/A 1.4 ppb (1) 0.0 ppb (0) N/A 0.14 ppb (2) N/A 3.6 μg/m3 (15) 15.0
 
Nov. 29, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.13 ppb (1) N/A 3.5 μg/m3 (15) 22.0
 
Nov. 29, 2019, 4 a.m. N/A 0.0 ppb (0) 1.1 ppb (1) N/A 1.1 ppb (1) 0.0 ppb (0) 29.0 ppb (22) 0.13 ppb (1) N/A 2.7 μg/m3 (11) 22.0
 
Nov. 29, 2019, 3 a.m. N/A 0.0 ppb (0) 1.1 ppb (1) N/A 1.1 ppb (1) 0.0 ppb (0) 29.0 ppb (22) 0.13 ppb (1) N/A 2.6 μg/m3 (11) 22.0
 
Nov. 29, 2019, 2 a.m. N/A 0.0 ppb (0) 1.7 ppb (2) N/A 1.7 ppb (2) 0.0 ppb (0) 30.0 ppb (23) 0.13 ppb (1) N/A 4.3 μg/m3 (18) 23.0
 
Nov. 29, 2019, 1 a.m. N/A 0.0 ppb (0) 1.4 ppb (1) N/A 1.4 ppb (1) 0.0 ppb (0) 31.0 ppb (24) 0.13 ppb (1) N/A 4.4 μg/m3 (18) 24.0
 
Nov. 29, 2019, midnight N/A 0.0 ppb (0) 1.1 ppb (1) N/A 1.1 ppb (1) 0.0 ppb (0) 31.0 ppb (24) 0.13 ppb (1) N/A 4.4 μg/m3 (18) 24.0
 
Nov. 28, 2019, 11 p.m. N/A 0.0 ppb (0) 0.8 ppb (1) N/A 0.8 ppb (1) 0.0 ppb (0) 31.0 ppb (24) 0.13 ppb (1) N/A 3.4 μg/m3 (14) 24.0
 
Nov. 28, 2019, 10 p.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A 0.6 ppb (1) 0.0 ppb (0) 32.0 ppb (25) 0.13 ppb (1) N/A 3.5 μg/m3 (15) 25.0
 
Nov. 28, 2019, 9 p.m. N/A 0.0 ppb (0) 1.0 ppb (1) N/A 1.0 ppb (1) 0.0 ppb (0) 32.0 ppb (25) 0.13 ppb (1) N/A 3.7 μg/m3 (15) 25.0
 
Nov. 28, 2019, 8 p.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A 0.6 ppb (1) 0.0 ppb (0) 32.0 ppb (25) 0.13 ppb (1) N/A 3.7 μg/m3 (15) 25.0
 
Nov. 28, 2019, 7 p.m. N/A 0.1 ppb (0) 0.7 ppb (1) N/A 0.6 ppb (1) 0.0 ppb (0) 31.0 ppb (24) 0.12 ppb (1) N/A 3.0 μg/m3 (12) 24.0
 
Nov. 28, 2019, 6 p.m. N/A 0.1 ppb (0) 0.7 ppb (1) N/A 0.6 ppb (1) 0.0 ppb (0) 32.0 ppb (25) 0.12 ppb (1) N/A 2.8 μg/m3 (12) 25.0
 
Nov. 28, 2019, 5 p.m. N/A 0.1 ppb (0) 0.9 ppb (1) N/A 0.8 ppb (1) 0.0 ppb (0) 30.0 ppb (23) 0.13 ppb (1) N/A 3.0 μg/m3 (12) 23.0
 
Nov. 28, 2019, 4 p.m. N/A 0.1 ppb (0) 1.0 ppb (1) N/A 0.9 ppb (1) 0.0 ppb (0) 30.0 ppb (23) 0.13 ppb (1) N/A 3.8 μg/m3 (16) 23.0
 
Nov. 28, 2019, 3 p.m. N/A 0.1 ppb (0) 0.8 ppb (1) N/A 0.8 ppb (1) 0.0 ppb (0) 31.0 ppb (24) 0.13 ppb (1) N/A 2.6 μg/m3 (11) 24.0
 
Nov. 28, 2019, 2 p.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A 0.5 ppb (0) 0.0 ppb (0) 31.0 ppb (24) 0.13 ppb (1) N/A 1.6 μg/m3 (7) 24.0
 
Nov. 28, 2019, 1 p.m. N/A 0.1 ppb (0) 0.6 ppb (1) N/A 0.5 ppb (0) 0.0 ppb (0) 27.0 ppb (21) 0.14 ppb (2) N/A 1.2 μg/m3 (5) 21.0
 
Nov. 28, 2019, noon N/A 0.0 ppb (0) 0.6 ppb (1) N/A 0.5 ppb (0) 0.0 ppb (0) 24.0 ppb (18) 0.14 ppb (2) N/A 0.7 μg/m3 (3) 18.0
 
Nov. 28, 2019, 11 a.m. N/A 0.0 ppb (0) 0.5 ppb (0) N/A 0.5 ppb (0) 0.0 ppb (0) 24.0 ppb (18) 0.14 ppb (2) N/A 0.3 μg/m3 (1) 18.0
 
Nov. 28, 2019, 10 a.m. N/A 0.0 ppb (0) 1.5 ppb (1) N/A 1.5 ppb (1) 0.0 ppb (0) 19.0 ppb (15) 0.15 ppb (2) N/A 0.6 μg/m3 (2) 15.0
 
Nov. 28, 2019, 9 a.m. N/A 0.0 ppb (0) 2.4 ppb (2) N/A 2.4 ppb (2) 0.0 ppb (0) 18.0 ppb (14) 0.17 ppb (2) N/A 0.5 μg/m3 (2) 14.0
 
Nov. 28, 2019, 8 a.m. N/A 0.0 ppb (0) 1.6 ppb (1) N/A 1.6 ppb (1) 0.0 ppb (0) 15.0 ppb (12) N/A N/A 0.3 μg/m3 (1) 12.0
 
Nov. 28, 2019, 7 a.m. N/A 0.0 ppb (0) 1.6 ppb (1) N/A 1.6 ppb (1) N/A 18.0 ppb (14) 0.14 ppb (2) N/A 1.2 μg/m3 (5) 14.0
 
Nov. 28, 2019, 6 a.m. N/A 0.0 ppb (0) 1.6 ppb (1) N/A 1.6 ppb (1) 0.0 ppb (0) N/A 0.15 ppb (2) N/A 2.1 μg/m3 (9) 9.0
 
Nov. 28, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 28.0 ppb (22) 0.17 ppb (2) N/A 3.4 μg/m3 (14) 22.0
 
Nov. 28, 2019, 4 a.m. N/A 0.0 ppb (0) 1.9 ppb (2) N/A 1.9 ppb (2) 0.0 ppb (0) 29.0 ppb (22) 0.18 ppb (2) N/A 2.1 μg/m3 (9) 22.0
 
Nov. 28, 2019, 3 a.m. N/A 0.0 ppb (0) 1.9 ppb (2) N/A 1.9 ppb (2) 0.0 ppb (0) 28.0 ppb (22) 0.18 ppb (2) N/A 1.9 μg/m3 (8) 22.0
 
Nov. 28, 2019, 2 a.m. N/A 0.0 ppb (0) 2.0 ppb (2) N/A 2.0 ppb (2) 0.0 ppb (0) 31.0 ppb (24) 0.17 ppb (2) N/A 1.4 μg/m3 (6) 24.0
 
Nov. 28, 2019, 1 a.m. N/A 0.0 ppb (0) 1.9 ppb (2) N/A 1.9 ppb (2) 0.0 ppb (0) 32.0 ppb (25) 0.16 ppb (2) N/A 1.7 μg/m3 (7) 25.0
 
Nov. 28, 2019, midnight N/A 0.0 ppb (0) 2.0 ppb (2) N/A 2.0 ppb (2) 0.0 ppb (0) 32.0 ppb (25) 0.17 ppb (2) N/A 2.0 μg/m3 (8) 25.0
 
Nov. 27, 2019, 11 p.m. N/A 0.0 ppb (0) 2.4 ppb (2) N/A 2.4 ppb (2) 0.0 ppb (0) 32.0 ppb (25) 0.17 ppb (2) N/A 3.7 μg/m3 (15) 25.0
 
Nov. 27, 2019, 10 p.m. N/A 0.0 ppb (0) 3.1 ppb (3) N/A 3.0 ppb (3) 0.0 ppb (0) 32.0 ppb (25) 0.17 ppb (2) N/A 7.3 μg/m3 (30) 30.0
 
Nov. 27, 2019, 9 p.m. N/A 0.0 ppb (0) 3.5 ppb (3) N/A 3.5 ppb (3) 0.0 ppb (0) 34.0 ppb (26) 0.17 ppb (2) N/A 11.1 μg/m3 (46) 46.0
 
Nov. 27, 2019, 8 p.m. N/A 0.0 ppb (0) 3.9 ppb (4) N/A 3.8 ppb (4) 0.0 ppb (0) 36.0 ppb (28) 0.16 ppb (2) N/A 11.8 μg/m3 (49) 49.0
 
Nov. 27, 2019, 7 p.m. N/A 0.1 ppb (0) 3.1 ppb (3) N/A 3.0 ppb (3) 0.0 ppb (0) 36.0 ppb (28) 0.15 ppb (2) N/A 11.6 μg/m3 (48) 48.0
 
Nov. 27, 2019, 6 p.m. N/A 0.1 ppb (0) 2.7 ppb (3) N/A 2.6 ppb (2) 0.0 ppb (0) 37.0 ppb (28) 0.14 ppb (2) N/A 11.6 μg/m3 (48) 48.0
 
Nov. 27, 2019, 5 p.m. N/A 0.1 ppb (0) 2.8 ppb (3) N/A 2.7 ppb (3) 0.0 ppb (0) 37.0 ppb (28) 0.14 ppb (2) N/A 12.3 μg/m3 (51) 51.0
 
Nov. 27, 2019, 4 p.m. N/A 0.0 ppb (0) 2.9 ppb (3) N/A 2.9 ppb (3) 0.0 ppb (0) 36.0 ppb (28) 0.14 ppb (2) N/A 13.2 μg/m3 (53) 53.0
 
Nov. 27, 2019, 3 p.m. N/A 0.1 ppb (0) 3.0 ppb (3) N/A 2.9 ppb (3) N/A 34.0 ppb (26) 0.14 ppb (2) N/A 13.4 μg/m3 (53) 53.0
 
Nov. 27, 2019, 2 p.m. N/A 0.0 ppb (0) 2.8 ppb (3) N/A 2.8 ppb (3) N/A 31.0 ppb (24) 0.15 ppb (2) N/A 12.8 μg/m3 (52) 52.0
 
Nov. 27, 2019, 1 p.m. N/A 0.1 ppb (0) 2.9 ppb (3) N/A 2.9 ppb (3) 0.0 ppb (0) 28.0 ppb (22) 0.15 ppb (2) N/A 13.3 μg/m3 (53) 53.0
 
Nov. 27, 2019, noon N/A 0.0 ppb (0) 3.0 ppb (3) N/A 3.0 ppb (3) 0.0 ppb (0) 26.0 ppb (20) 0.16 ppb (2) N/A 13.9 μg/m3 (54) 54.0
 
Nov. 27, 2019, 11 a.m. N/A 0.0 ppb (0) 3.1 ppb (3) N/A 3.1 ppb (3) 0.0 ppb (0) 27.0 ppb (21) 0.15 ppb (2) N/A 13.7 μg/m3 (54) 54.0
 
Nov. 27, 2019, 10 a.m. N/A 0.0 ppb (0) 3.5 ppb (3) N/A 3.5 ppb (3) 0.0 ppb (0) 27.0 ppb (21) 0.15 ppb (2) N/A 15.8 μg/m3 (58) 58.0
 
Nov. 27, 2019, 9 a.m. N/A 0.0 ppb (0) 3.7 ppb (3) N/A 3.7 ppb (3) 0.0 ppb (0) 25.0 ppb (19) 0.16 ppb (2) N/A 16.7 μg/m3 (60) 60.0
 
Nov. 27, 2019, 8 a.m. N/A 0.0 ppb (0) 3.8 ppb (4) N/A 3.8 ppb (4) 0.0 ppb (0) 26.0 ppb (20) N/A N/A 16.5 μg/m3 (60) 60.0
 
Nov. 27, 2019, 7 a.m. N/A 0.0 ppb (0) 4.0 ppb (4) N/A 4.0 ppb (4) N/A 26.0 ppb (20) 0.16 ppb (2) N/A 17.3 μg/m3 (61) 61.0
 
Nov. 27, 2019, 6 a.m. N/A 0.0 ppb (0) 4.0 ppb (4) N/A 4.0 ppb (4) 0.0 ppb (0) N/A 0.16 ppb (2) N/A 16.9 μg/m3 (60) 60.0
 
Nov. 27, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 29.0 ppb (22) 0.16 ppb (2) N/A 16.5 μg/m3 (60) 60.0
 
Nov. 27, 2019, 4 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 31.0 ppb (24) 0.16 ppb (2) N/A 15.4 μg/m3 (57) 57.0
 
Nov. 27, 2019, 3 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 32.0 ppb (25) 0.16 ppb (2) N/A 14.1 μg/m3 (54) 54.0
 
Nov. 27, 2019, 2 a.m. N/A 0.0 ppb (0) 3.3 ppb (3) N/A 3.3 ppb (3) 0.0 ppb (0) 33.0 ppb (25) N/A N/A 13.1 μg/m3 (52) 52.0
 
Nov. 27, 2019, 1 a.m. N/A 0.0 ppb (0) 3.3 ppb (3) N/A 3.2 ppb (3) N/A 34.0 ppb (26) 0.14 ppb (2) N/A 11.7 μg/m3 (49) 49.0
 
Nov. 27, 2019, midnight N/A 0.0 ppb (0) 3.5 ppb (3) N/A 3.5 ppb (3) 0.0 ppb (0) N/A 0.15 ppb (2) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 26, 2019, 11 p.m. N/A 0.0 ppb (0) 3.7 ppb (3) N/A 3.7 ppb (3) 0.0 ppb (0) 32.0 ppb (25) 0.15 ppb (2) N/A 9.9 μg/m3 (41) 41.0
 
Nov. 26, 2019, 10 p.m. N/A 0.0 ppb (0) 3.5 ppb (3) N/A 3.5 ppb (3) 0.0 ppb (0) 31.0 ppb (24) 0.15 ppb (2) N/A 8.6 μg/m3 (36) 36.0
 
Nov. 26, 2019, 9 p.m. N/A 0.0 ppb (0) 3.0 ppb (3) N/A 3.0 ppb (3) 0.0 ppb (0) 32.0 ppb (25) 0.14 ppb (2) N/A 7.8 μg/m3 (32) 32.0
 
Nov. 26, 2019, 8 p.m. N/A 0.1 ppb (0) 2.7 ppb (3) N/A 2.7 ppb (3) 0.0 ppb (0) 34.0 ppb (26) 0.14 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 26, 2019, 7 p.m. N/A 0.1 ppb (0) 2.8 ppb (3) N/A 2.7 ppb (3) 0.0 ppb (0) 34.0 ppb (26) 0.14 ppb (2) N/A 7.9 μg/m3 (33) 33.0
 
Nov. 26, 2019, 6 p.m. N/A 0.1 ppb (0) 2.7 ppb (3) N/A 2.6 ppb (2) 1.0 ppb (1) 35.0 ppb (27) 0.15 ppb (2) N/A 7.7 μg/m3 (32) 32.0
 
Nov. 26, 2019, 5 p.m. N/A 0.1 ppb (0) 2.5 ppb (2) N/A 2.4 ppb (2) 1.0 ppb (1) 37.0 ppb (28) 0.14 ppb (2) N/A 7.3 μg/m3 (30) 30.0
 
Nov. 26, 2019, 4 p.m. N/A 0.2 ppb (0) 2.4 ppb (2) N/A 2.1 ppb (2) 1.0 ppb (1) 37.0 ppb (28) 0.14 ppb (2) N/A 6.8 μg/m3 (28) 28.0
 
Nov. 26, 2019, 3 p.m. N/A 0.2 ppb (0) 2.4 ppb (2) N/A 2.2 ppb (2) 0.0 ppb (0) 35.0 ppb (27) 0.14 ppb (2) N/A 7.8 μg/m3 (32) 32.0
 
Nov. 26, 2019, 2 p.m. N/A 0.2 ppb (0) 2.5 ppb (2) N/A 2.3 ppb (2) 0.0 ppb (0) 33.0 ppb (25) 0.13 ppb (1) N/A 8.8 μg/m3 (37) 37.0
 
Nov. 26, 2019, 1 p.m. N/A 0.1 ppb (0) 2.2 ppb (2) N/A 2.1 ppb (2) 0.0 ppb (0) 32.0 ppb (25) 0.13 ppb (1) N/A 7.9 μg/m3 (33) 33.0
 
Nov. 26, 2019, noon N/A 0.0 ppb (0) 1.9 ppb (2) N/A 1.9 ppb (2) 0.0 ppb (0) 31.0 ppb (24) 0.13 ppb (1) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 26, 2019, 11 a.m. N/A 0.0 ppb (0) 1.8 ppb (2) N/A 1.8 ppb (2) 0.0 ppb (0) 30.0 ppb (23) 0.14 ppb (2) N/A 8.2 μg/m3 (34) 34.0
 
Nov. 26, 2019, 10 a.m. N/A 0.0 ppb (0) 1.9 ppb (2) N/A 1.9 ppb (2) 0.0 ppb (0) 29.0 ppb (22) 0.13 ppb (1) N/A 8.7 μg/m3 (36) 36.0
 
Nov. 26, 2019, 9 a.m. N/A 0.0 ppb (0) 1.8 ppb (2) N/A 1.8 ppb (2) 0.0 ppb (0) 30.0 ppb (23) 0.13 ppb (1) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 26, 2019, 8 a.m. N/A 0.0 ppb (0) 1.9 ppb (2) N/A 1.9 ppb (2) 0.0 ppb (0) 30.0 ppb (23) N/A N/A 8.9 μg/m3 (37) 37.0
 
Nov. 26, 2019, 7 a.m. N/A 0.0 ppb (0) 1.9 ppb (2) N/A 1.9 ppb (2) N/A 30.0 ppb (23) 0.13 ppb (1) N/A 9.4 μg/m3 (39) 39.0
 
Nov. 26, 2019, 6 a.m. N/A 0.0 ppb (0) 2.5 ppb (2) N/A 2.5 ppb (2) 0.0 ppb (0) N/A 0.14 ppb (2) N/A 11.9 μg/m3 (50) 50.0
 
Nov. 26, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 26.0 ppb (20) 0.14 ppb (2) N/A 11.6 μg/m3 (48) 48.0
 
Nov. 26, 2019, 4 a.m. N/A 0.0 ppb (0) 2.0 ppb (2) N/A 2.0 ppb (2) 0.0 ppb (0) 28.0 ppb (22) 0.14 ppb (2) N/A 9.1 μg/m3 (38) 38.0
 
Nov. 26, 2019, 3 a.m. N/A 0.0 ppb (0) 1.6 ppb (1) N/A 1.6 ppb (1) 0.0 ppb (0) 30.0 ppb (23) 0.14 ppb (2) N/A 7.6 μg/m3 (32) 32.0
 
Nov. 26, 2019, 2 a.m. N/A 0.0 ppb (0) 1.3 ppb (1) N/A 1.3 ppb (1) 0.0 ppb (0) 32.0 ppb (25) 0.14 ppb (2) N/A 5.9 μg/m3 (25) 25.0
 
Nov. 26, 2019, 1 a.m. N/A 0.0 ppb (0) 1.1 ppb (1) N/A 1.1 ppb (1) 0.0 ppb (0) 33.0 ppb (25) 0.14 ppb (2) N/A 4.8 μg/m3 (20) 25.0
 
Nov. 26, 2019, midnight N/A 0.0 ppb (0) 1.4 ppb (1) N/A 1.4 ppb (1) 0.0 ppb (0) 34.0 ppb (26) 0.14 ppb (2) N/A 4.8 μg/m3 (20) 26.0
 
Nov. 25, 2019, 11 p.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A 0.9 ppb (1) 0.0 ppb (0) 36.0 ppb (28) 0.14 ppb (2) N/A 2.9 μg/m3 (12) 28.0
 
Nov. 25, 2019, 10 p.m. N/A 0.0 ppb (0) 0.7 ppb (1) N/A 0.7 ppb (1) 0.0 ppb (0) 36.0 ppb (28) 0.13 ppb (1) N/A 2.8 μg/m3 (12) 28.0
 
Nov. 25, 2019, 9 p.m. N/A 0.0 ppb (0) 0.9 ppb (1) N/A 0.9 ppb (1) 0.0 ppb (0) 36.0 ppb (28) 0.14 ppb (2) N/A 3.1 μg/m3 (13) 28.0
 
Nov. 25, 2019, 8 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 36.0 ppb (28) 0.13 ppb (1) N/A 3.4 μg/m3 (14) 28.0
 
Nov. 25, 2019, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 34.0 ppb (26) 0.13 ppb (1) N/A 4.2 μg/m3 (18) 26.0
 
Nov. 25, 2019, 6 p.m. N/A 0.1 ppb (0) 0.9 ppb (1) N/A 0.9 ppb (1) 0.0 ppb (0) N/A 0.13 ppb (1) N/A 3.9 μg/m3 (16) 16.0
 
Nov. 25, 2019, 5 p.m. N/A 0.2 ppb (0) 1.8 ppb (2) N/A 1.7 ppb (2) 0.0 ppb (0) 34.0 ppb (26) 0.13 ppb (1) N/A 5.7 μg/m3 (24) 26.0
 
Nov. 25, 2019, 4 p.m. N/A 0.2 ppb (0) 1.7 ppb (2) N/A 1.6 ppb (1) 0.0 ppb (0) 34.0 ppb (26) 0.13 ppb (1) N/A 5.5 μg/m3 (23) 26.0
 
Nov. 25, 2019, 3 p.m. N/A 0.3 ppb (0) 2.5 ppb (2) N/A 2.2 ppb (2) 0.0 ppb (0) 32.0 ppb (25) 0.14 ppb (2) N/A 6.9 μg/m3 (29) 29.0
 
Nov. 25, 2019, 2 p.m. N/A 0.2 ppb (0) 3.2 ppb (3) N/A 3.0 ppb (3) 0.0 ppb (0) 28.0 ppb (22) 0.15 ppb (2) N/A 8.9 μg/m3 (37) 37.0
 
Nov. 25, 2019, 1 p.m. N/A 0.1 ppb (0) 3.5 ppb (3) N/A 3.4 ppb (3) 0.0 ppb (0) 26.0 ppb (20) 0.15 ppb (2) N/A 10.5 μg/m3 (44) 44.0
 
Nov. 25, 2019, noon N/A 0.1 ppb (0) 3.5 ppb (3) N/A 3.4 ppb (3) 0.0 ppb (0) 27.0 ppb (21) 0.16 ppb (2) N/A 11.0 μg/m3 (46) 46.0
 
Nov. 25, 2019, 11 a.m. N/A 0.0 ppb (0) 3.6 ppb (3) N/A 3.6 ppb (3) 0.0 ppb (0) 27.0 ppb (21) 0.16 ppb (2) N/A 11.9 μg/m3 (50) 50.0
 
Nov. 25, 2019, 10 a.m. N/A 0.0 ppb (0) 4.2 ppb (4) N/A 4.1 ppb (4) 0.0 ppb (0) 26.0 ppb (20) 0.15 ppb (2) N/A 13.7 μg/m3 (54) 54.0
 
Nov. 25, 2019, 9 a.m. N/A 0.0 ppb (0) 4.0 ppb (4) N/A 3.9 ppb (4) 0.0 ppb (0) 26.0 ppb (20) 0.15 ppb (2) N/A 13.3 μg/m3 (53) 53.0
 
Nov. 25, 2019, 8 a.m. N/A 0.0 ppb (0) 4.0 ppb (4) N/A 4.0 ppb (4) 0.0 ppb (0) 26.0 ppb (20) N/A N/A 13.5 μg/m3 (53) 53.0
 
Nov. 25, 2019, 7 a.m. N/A 0.0 ppb (0) 4.1 ppb (4) N/A 4.0 ppb (4) N/A 25.0 ppb (19) 0.16 ppb (2) N/A 12.2 μg/m3 (50) 50.0
 
Nov. 25, 2019, 6 a.m. N/A 0.0 ppb (0) 4.3 ppb (4) N/A 4.2 ppb (4) 1.0 ppb (1) N/A 0.16 ppb (2) N/A 10.9 μg/m3 (45) 45.0
 
Nov. 25, 2019, 5 a.m. N/A N/A N/A N/A N/A 1.0 ppb (1) 26.0 ppb (20) 0.16 ppb (2) N/A 9.8 μg/m3 (41) 41.0
 
Nov. 25, 2019, 4 a.m. N/A 0.0 ppb (0) 4.6 ppb (4) N/A 4.6 ppb (4) 1.0 ppb (1) 27.0 ppb (21) 0.16 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
Nov. 25, 2019, 3 a.m. N/A 0.0 ppb (0) 4.0 ppb (4) N/A 4.0 ppb (4) 1.0 ppb (1) 29.0 ppb (22) 0.15 ppb (2) N/A 8.0 μg/m3 (33) 33.0
 
Nov. 25, 2019, 2 a.m. N/A 0.0 ppb (0) 4.6 ppb (4) N/A 4.5 ppb (4) 0.0 ppb (0) 24.0 ppb (18) 0.17 ppb (2) N/A 10.1 μg/m3 (42) 42.0
 
Nov. 25, 2019, 1 a.m. N/A 0.0 ppb (0) 4.6 ppb (4) N/A 4.6 ppb (4) 0.0 ppb (0) 22.0 ppb (17) 0.18 ppb (2) N/A 9.8 μg/m3 (41) 41.0
 
Nov. 25, 2019, midnight N/A 0.0 ppb (0) 3.8 ppb (4) N/A 3.7 ppb (3) 0.0 ppb (0) 24.0 ppb (18) 0.16 ppb (2) N/A 8.5 μg/m3 (35) 35.0
 
Nov. 24, 2019, 11 p.m. N/A 0.0 ppb (0) 1.9 ppb (2) N/A 1.9 ppb (2) 0.0 ppb (0) 30.0 ppb (23) 0.14 ppb (2) N/A 6.6 μg/m3 (28) 28.0
 
Nov. 24, 2019, 10 p.m. N/A 0.0 ppb (0) 1.3 ppb (1) N/A 1.3 ppb (1) 0.0 ppb (0) 33.0 ppb (25) 0.14 ppb (2) N/A 5.8 μg/m3 (24) 25.0
 
Nov. 24, 2019, 9 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 (27) 0.14 ppb (2) N/A 5.2 μg/m3 (22) 27.0
 
Nov. 24, 2019, 8 p.m. N/A 0.0 ppb (0) 1.0 ppb (1) N/A 0.9 ppb (1) 0.0 ppb (0) 37.0 ppb (28) 0.13 ppb (1) N/A 4.3 μg/m3 (18) 28.0
 
Nov. 24, 2019, 7 p.m. N/A 0.1 ppb (0) 1.2 ppb (1) N/A 1.1 ppb (1) 0.0 ppb (0) 33.0 ppb (25) 0.14 ppb (2) N/A 4.9 μg/m3 (20) 25.0
 
Nov. 24, 2019, 6 p.m. N/A 0.1 ppb (0) 1.3 ppb (1) N/A 1.2 ppb (1) 0.0 ppb (0) 30.0 ppb (23) 0.15 ppb (2) N/A 5.4 μg/m3 (23) 23.0
 
Nov. 24, 2019, 5 p.m. N/A 0.1 ppb (0) 1.2 ppb (1) N/A 1.1 ppb (1) 0.0 ppb (0) 31.0 ppb (24) 0.14 ppb (2) N/A 5.1 μg/m3 (21) 24.0
 
Nov. 24, 2019, 4 p.m. N/A 0.1 ppb (0) 1.1 ppb (1) N/A 0.9 ppb (1) 0.0 ppb (0) 32.0 ppb (25) 0.14 ppb (2) N/A 4.4 μg/m3 (18) 25.0
 
Nov. 24, 2019, 3 p.m. N/A 0.1 ppb (0) 1.4 ppb (1) N/A 1.3 ppb (1) 0.0 ppb (0) 33.0 ppb (25) 0.14 ppb (2) N/A 4.1 μg/m3 (17) 25.0
 
Nov. 24, 2019, 2 p.m. N/A 0.1 ppb (0) 1.0 ppb (1) N/A 0.8 ppb (1) 0.0 ppb (0) 32.0 ppb (25) 0.15 ppb (2) N/A 4.5 μg/m3 (19) 25.0
 
Nov. 24, 2019, 1 p.m. N/A 0.1 ppb (0) 0.9 ppb (1) N/A 0.8 ppb (1) 0.0 ppb (0) 31.0 ppb (24) 0.14 ppb (2) N/A 4.5 μg/m3 (19) 24.0
 
Nov. 24, 2019, noon N/A 0.0 ppb (0) 0.8 ppb (1) N/A 0.8 ppb (1) 0.0 ppb (0) 31.0 ppb (24) 0.14 ppb (2) N/A 4.4 μg/m3 (18) 24.0
 
Nov. 24, 2019, 11 a.m. N/A 0.0 ppb (0) 0.5 ppb (0) N/A 0.5 ppb (0) 0.0 ppb (0) 37.0 ppb (28) 0.13 ppb (1) N/A 2.4 μg/m3 (10) 28.0
 
Nov. 24, 2019, 10 a.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A 0.6 ppb (1) 0.0 ppb (0) 37.0 ppb (28) 0.12 ppb (1) N/A 2.6 μg/m3 (11) 28.0
 
Nov. 24, 2019, 9 a.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A 0.6 ppb (1) 0.0 ppb (0) 36.0 ppb (28) 0.13 ppb (1) N/A 2.9 μg/m3 (12) 28.0
 
Nov. 24, 2019, 8 a.m. N/A 0.0 ppb (0) 0.5 ppb (0) N/A 0.5 ppb (0) 0.0 ppb (0) 36.0 ppb (28) N/A N/A 2.4 μg/m3 (10) 28.0
 
Nov. 24, 2019, 7 a.m. N/A 0.0 ppb (0) 0.5 ppb (0) N/A 0.5 ppb (0) N/A 34.0 ppb (26) 0.13 ppb (1) N/A 2.0 μg/m3 (8) 26.0
 
Nov. 24, 2019, 6 a.m. N/A 0.0 ppb (0) 0.7 ppb (1) N/A 0.7 ppb (1) 0.0 ppb (0) N/A 0.14 ppb (2) N/A 2.8 μg/m3 (12) 12.0
 
Nov. 24, 2019, 5 a.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 39.0 ppb (30) 0.13 ppb (1) N/A 2.9 μg/m3 (12) 30.0
 
Nov. 24, 2019, 4 a.m. N/A 0.0 ppb (0) 0.5 ppb (0) N/A 0.5 ppb (0) 0.0 ppb (0) 39.0 ppb (30) 0.13 ppb (1) N/A 2.3 μg/m3 (10) 30.0
 
Nov. 24, 2019, 3 a.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A 0.4 ppb (0) 0.0 ppb (0) 41.0 ppb (32) 0.13 ppb (1) N/A 1.5 μg/m3 (6) 32.0
 
Nov. 24, 2019, 2 a.m. N/A 0.0 ppb (0) 0.5 ppb (0) N/A 0.5 ppb (0) 0.0 ppb (0) 40.0 ppb (31) 0.12 ppb (1) N/A 1.9 μg/m3 (8) 31.0
 
Nov. 24, 2019, 1 a.m. N/A 0.0 ppb (0) 0.6 ppb (1) N/A 0.6 ppb (1) 0.0 ppb (0) 38.0 ppb (29) 0.12 ppb (1) N/A 2.5 μg/m3 (10) 29.0
 
Nov. 24, 2019, midnight N/A 0.0 ppb (0) 0.4 ppb (0) N/A 0.4 ppb (0) 0.0 ppb (0) 39.0 ppb (30) 0.12 ppb (1) N/A 2.3 μg/m3 (10) 30.0
 
Nov. 23, 2019, 11 p.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A 0.3 ppb (0) 0.0 ppb (0) 39.0 ppb (30) 0.11 ppb (1) N/A 2.0 μg/m3 (8) 30.0
 
Nov. 23, 2019, 10 p.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A 0.3 ppb (0) 0.0 ppb (0) 39.0 ppb (30) 0.11 ppb (1) N/A 2.1 μg/m3 (9) 30.0
 
Nov. 23, 2019, 9 p.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A 0.3 ppb (0) 0.0 ppb (0) 39.0 ppb (30) 0.11 ppb (1) N/A 2.6 μg/m3 (11) 30.0
 
Nov. 23, 2019, 8 p.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A 0.4 ppb (0) 0.0 ppb (0) 41.0 ppb (32) 0.12 ppb (1) N/A 2.6 μg/m3 (11) 32.0
 
Nov. 23, 2019, 7 p.m. N/A 0.0 ppb (0) 0.4 ppb (0) N/A 0.3 ppb (0) 0.0 ppb (0) 41.0 ppb (32) 0.12 ppb (1) N/A 1.8 μg/m3 (8) 32.0
 
Nov. 23, 2019, 6 p.m. N/A 0.1 ppb (0) 0.4 ppb (0) N/A 0.3 ppb (0) 0.0 ppb (0) 41.0 ppb (32) 0.11 ppb (1) N/A 1.9 μg/m3 (8) 32.0
 
Nov. 23, 2019, 5 p.m. N/A 0.1 ppb (0) 0.4 ppb (0) N/A 0.4 ppb (0) 0.0 ppb (0) 42.0 ppb (32) 0.11 ppb (1) N/A 1.9 μg/m3 (8) 32.0
 
Nov. 23, 2019, 4 p.m. N/A 0.1 ppb (0) 0.5 ppb (0) N/A 0.4 ppb (0) 0.0 ppb (0) 41.0 ppb (32) 0.12 ppb (1) N/A 1.9 μg/m3 (8) 32.0
 
Nov. 23, 2019, 3 p.m. N/A 0.1 ppb (0) 0.3 ppb (0) N/A 0.3 ppb (0) 0.0 ppb (0) 41.0 ppb (32) 0.12 ppb (1) N/A 1.4 μg/m3 (6) 32.0
 
Nov. 23, 2019, 2 p.m. N/A 0.1 ppb (0) 0.3 ppb (0) N/A 0.3 ppb (0) 0.0 ppb (0) 41.0 ppb (32) 0.12 ppb (1) N/A 1.4 μg/m3 (6) 32.0
 
Nov. 23, 2019, 1 p.m. N/A 0.1 ppb (0) 0.9 ppb (1) N/A 0.7 ppb (1) 0.0 ppb (0) 40.0 ppb (31) 0.12 ppb (1) N/A 1.3 μg/m3 (5) 31.0
 
Nov. 23, 2019, noon N/A 0.0 ppb (0) 0.4 ppb (0) N/A 0.4 ppb (0) 0.0 ppb (0) 38.0 ppb (29) 0.13 ppb (1) N/A 1.4 μg/m3 (6) 29.0
 
Nov. 23, 2019, 11 a.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A 0.3 ppb (0) 0.0 ppb (0) 38.0 ppb (29) 0.13 ppb (1) N/A 1.7 μg/m3 (7) 29.0
 
Nov. 23, 2019, 10 a.m. N/A 0.0 ppb (0) 0.3 ppb (0) N/A 0.2 ppb (0) 0.0 ppb (0) 40.0 ppb (31) 0.13 ppb (1) N/A 1.5 μg/m3 (6) 31.0
 
Nov. 23, 2019, 9 a.m. N/A 0.0 ppb (0) 0.2 ppb (0) N/A 0.2 ppb (0) 0.0 ppb (0) 39.0 ppb (30) 0.13 ppb (1) N/A 1.3 μg/m3 (5) 30.0
 
Nov. 23, 2019, 8 a.m. N/A 0.0 ppb (0) 0.1 ppb (0) N/A 0.1 ppb (0) 0.0 ppb (0) 39.0 ppb (30) N/A N/A 1.0 μg/m3 (4) 30.0