AQSQID: 500210002

Site Name: Rutland

Location: Rutland, VT

Reporting: True, Located: True

Current AQI: 22.0

Rutland VT, US: 43.608528, -72.98246

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
May 21, 2019, 11 a.m. 2.3 ppb (2) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (22) 0.1 ppb (1) N/A 1.8 μg/m3 (8) 22.0
 
May 21, 2019, 10 a.m. 1.6 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (21) 0.0 ppb (0) N/A 2.0 μg/m3 (8) 21.0
 
May 21, 2019, 9 a.m. 1.8 ppb (2) 0.5 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 24.0 ppb (18) 0.0 ppb (0) N/A 0.8 μg/m3 (3) 18.0
 
May 21, 2019, 8 a.m. 2.2 ppb (2) 0.8 ppb (1) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 22.0 ppb (17) 0.0 ppb (0) N/A 0.7 μg/m3 (3) 17.0
 
May 21, 2019, 7 a.m. 0.9 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) N/A 1.0 μg/m3 (4) 4.0
 
May 21, 2019, 6 a.m. 0.3 ppb (0) -0.1 ppb (0) N/A 0.0 ppb (0) N/A 0.0 ppb (0) 26.0 ppb (20) 0.0 ppb (0) N/A 1.2 μg/m3 (5) 20.0
 
May 21, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (20) N/A N/A 1.8 μg/m3 (8) 20.0
 
May 21, 2019, 4 a.m. 0.4 ppb (0) -0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 31.0 ppb (24) 0.0 ppb (0) N/A 3.2 μg/m3 (13) 24.0
 
May 21, 2019, 3 a.m. 0.6 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (28) 0.0 ppb (0) N/A 4.3 μg/m3 (18) 28.0
 
May 21, 2019, 2 a.m. 0.9 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 40.0 ppb (31) 0.1 ppb (1) N/A 5.2 μg/m3 (22) 31.0
 
May 21, 2019, 1 a.m. 0.9 ppb (1) -0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 40.0 ppb (31) 0.0 ppb (0) N/A 5.7 μg/m3 (24) 31.0
 
May 21, 2019, midnight 1.4 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 42.0 ppb (32) 0.1 ppb (1) N/A 6.1 μg/m3 (25) 32.0
 
May 20, 2019, 11 p.m. 1.5 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 45.0 ppb (35) 0.1 ppb (1) N/A 6.1 μg/m3 (25) 35.0
 
May 20, 2019, 10 p.m. 2.7 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 45.0 ppb (35) 0.1 ppb (1) N/A 6.3 μg/m3 (26) 35.0
 
May 20, 2019, 9 p.m. 3.8 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 45.0 ppb (35) 0.1 ppb (1) N/A 6.7 μg/m3 (28) 35.0
 
May 20, 2019, 8 p.m. 4.6 ppb (4) 0.9 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 44.0 ppb (34) 0.1 ppb (1) N/A 6.4 μg/m3 (27) 34.0
 
May 20, 2019, 7 p.m. 8.1 ppb (8) 1.8 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 41.0 ppb (32) 0.2 ppb (2) N/A 5.7 μg/m3 (24) 32.0
 
May 20, 2019, 6 p.m. 8.0 ppb (7) 1.2 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 38.0 ppb (29) 0.2 ppb (2) N/A 6.2 μg/m3 (26) 29.0
 
May 20, 2019, 5 p.m. 3.2 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 7.9 μg/m3 (33) 33.0
 
May 20, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.5 μg/m3 (35) 35.0
 
May 20, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 8.4 μg/m3 (35) 35.0
 
May 20, 2019, 2 p.m. 9.9 ppb (9) 1.5 ppb (1) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 36.0 ppb (28) 0.2 ppb (2) N/A 7.4 μg/m3 (31) 31.0
 
May 20, 2019, 1 p.m. 17.9 ppb (17) 2.9 ppb (3) N/A 15.0 ppb (14) N/A 0.0 ppb (0) 29.0 ppb (22) 0.4 ppb (4) N/A 6.3 μg/m3 (26) 26.0
 
May 20, 2019, noon 21.0 ppb (19) 3.1 ppb (3) N/A 18.0 ppb (17) N/A 0.0 ppb (0) 22.0 ppb (17) 0.3 ppb (3) N/A 6.1 μg/m3 (25) 25.0
 
May 20, 2019, 11 a.m. 10.1 ppb (9) 0.7 ppb (1) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 38.0 ppb (29) 0.2 ppb (2) N/A 5.2 μg/m3 (22) 29.0
 
May 20, 2019, 10 a.m. 12.1 ppb (11) 0.8 ppb (1) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 36.0 ppb (28) 0.1 ppb (1) N/A 5.5 μg/m3 (23) 28.0
 
May 20, 2019, 9 a.m. 5.6 ppb (5) 1.0 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 44.0 ppb (34) 0.1 ppb (1) N/A 5.6 μg/m3 (23) 34.0
 
May 20, 2019, 8 a.m. 2.0 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 38.0 ppb (29) 0.1 ppb (1) N/A 9.9 μg/m3 (41) 41.0
 
May 20, 2019, 7 a.m. 2.6 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 10.0 μg/m3 (42) 42.0
 
May 20, 2019, 6 a.m. 2.6 ppb (2) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 17.0 ppb (13) 0.1 ppb (1) N/A 9.2 μg/m3 (38) 38.0
 
May 20, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 8.9 μg/m3 (37) 37.0
 
May 20, 2019, 4 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 36.0 ppb (28) 0.1 ppb (1) N/A 7.5 μg/m3 (31) 31.0
 
May 20, 2019, 3 a.m. 1.3 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 40.0 ppb (31) 0.1 ppb (1) N/A 5.3 μg/m3 (22) 31.0
 
May 20, 2019, 2 a.m. 1.4 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 41.0 ppb (32) 0.1 ppb (1) N/A 4.4 μg/m3 (18) 32.0
 
May 20, 2019, 1 a.m. 2.1 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 42.0 ppb (32) 0.1 ppb (1) N/A 4.8 μg/m3 (20) 32.0
 
May 20, 2019, midnight 2.9 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 40.0 ppb (31) 0.1 ppb (1) N/A 6.1 μg/m3 (25) 31.0
 
May 19, 2019, 11 p.m. 3.0 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 42.0 ppb (32) 0.1 ppb (1) N/A 8.6 μg/m3 (36) 36.0
 
May 19, 2019, 10 p.m. 2.5 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) 45.0 ppb (35) 0.1 ppb (1) N/A 11.5 μg/m3 (48) 48.0
 
May 19, 2019, 9 p.m. 3.9 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 49.0 ppb (38) 0.1 ppb (1) N/A 13.4 μg/m3 (53) 53.0
 
May 19, 2019, 8 p.m. 4.0 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 52.0 ppb (40) 0.1 ppb (1) N/A 13.7 μg/m3 (54) 54.0
 
May 19, 2019, 7 p.m. 5.9 ppb (5) 1.6 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 48.0 ppb (37) 0.1 ppb (1) N/A 13.4 μg/m3 (53) 53.0
 
May 19, 2019, 6 p.m. 10.3 ppb (10) 3.8 ppb (4) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 45.0 ppb (35) 0.1 ppb (1) N/A 12.3 μg/m3 (51) 51.0
 
May 19, 2019, 5 p.m. 5.5 ppb (5) 1.5 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 48.0 ppb (37) 0.1 ppb (1) N/A 11.9 μg/m3 (50) 50.0
 
May 19, 2019, 4 p.m. 5.5 ppb (5) 1.5 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 49.0 ppb (38) 0.1 ppb (1) N/A 10.5 μg/m3 (44) 44.0
 
May 19, 2019, 3 p.m. 5.5 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 42.0 ppb (32) 0.1 ppb (1) N/A 7.6 μg/m3 (32) 32.0
 
May 19, 2019, 2 p.m. 19.9 ppb (18) 9.9 ppb (9) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 28.0 ppb (22) 0.1 ppb (1) N/A 5.4 μg/m3 (23) 23.0
 
May 19, 2019, 1 p.m. 15.5 ppb (14) 7.6 ppb (7) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 24.0 ppb (18) 0.2 ppb (2) N/A 4.6 μg/m3 (19) 19.0
 
May 19, 2019, noon 31.4 ppb (29) 18.6 ppb (17) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 15.0 ppb (12) 0.1 ppb (1) N/A 4.1 μg/m3 (17) 29.0
 
May 19, 2019, 11 a.m. 7.6 ppb (7) 1.6 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 13.0 ppb (10) 0.1 ppb (1) N/A 4.5 μg/m3 (19) 19.0
 
May 19, 2019, 10 a.m. 7.2 ppb (7) 1.4 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 9.0 ppb (7) 0.1 ppb (1) N/A 4.5 μg/m3 (19) 19.0
 
May 19, 2019, 9 a.m. 7.5 ppb (7) 2.2 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 9.0 ppb (7) 0.1 ppb (1) N/A 4.6 μg/m3 (19) 19.0
 
May 19, 2019, 8 a.m. 3.3 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 12.0 ppb (9) 0.1 ppb (1) N/A 4.3 μg/m3 (18) 18.0
 
May 19, 2019, 7 a.m. 2.9 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 3.7 μg/m3 (15) 15.0
 
May 19, 2019, 6 a.m. 2.9 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 17.0 ppb (13) 0.1 ppb (1) N/A 4.1 μg/m3 (17) 17.0
 
May 19, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (15) N/A N/A 4.3 μg/m3 (18) 18.0
 
May 19, 2019, 4 a.m. 1.8 ppb (2) -0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 21.0 ppb (16) 0.1 ppb (1) N/A 3.7 μg/m3 (15) 16.0
 
May 19, 2019, 3 a.m. 2.2 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 24.0 ppb (18) 0.1 ppb (1) N/A 3.6 μg/m3 (15) 18.0
 
May 19, 2019, 2 a.m. 8.4 ppb (8) 2.7 ppb (3) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 22.0 ppb (17) 0.1 ppb (1) N/A 4.1 μg/m3 (17) 17.0
 
May 19, 2019, 1 a.m. 2.2 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 26.0 ppb (20) 0.1 ppb (1) N/A 2.9 μg/m3 (12) 20.0
 
May 19, 2019, midnight 1.5 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 27.0 ppb (21) 0.1 ppb (1) N/A 2.6 μg/m3 (11) 21.0
 
May 18, 2019, 11 p.m. 1.4 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 30.0 ppb (23) 0.0 ppb (0) N/A 2.2 μg/m3 (9) 23.0
 
May 18, 2019, 10 p.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (25) 0.0 ppb (0) N/A 1.6 μg/m3 (7) 25.0
 
May 18, 2019, 9 p.m. 0.8 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (25) 0.0 ppb (0) N/A 1.7 μg/m3 (7) 25.0
 
May 18, 2019, 8 p.m. 1.1 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (25) 0.0 ppb (0) N/A 1.7 μg/m3 (7) 25.0
 
May 18, 2019, 7 p.m. 0.6 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (25) 0.0 ppb (0) N/A 1.4 μg/m3 (6) 25.0
 
May 18, 2019, 6 p.m. 0.8 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 31.0 ppb (24) 0.0 ppb (0) N/A 1.5 μg/m3 (6) 24.0
 
May 18, 2019, 5 p.m. 0.8 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 31.0 ppb (24) 0.0 ppb (0) N/A 1.3 μg/m3 (5) 24.0
 
May 18, 2019, 4 p.m. 0.8 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 31.0 ppb (24) 0.0 ppb (0) N/A 1.2 μg/m3 (5) 24.0
 
May 18, 2019, 3 p.m. 1.2 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 31.0 ppb (24) 0.0 ppb (0) N/A 1.0 μg/m3 (4) 24.0
 
May 18, 2019, 2 p.m. 1.1 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 31.0 ppb (24) 0.1 ppb (1) N/A 1.1 μg/m3 (5) 24.0
 
May 18, 2019, 1 p.m. 1.3 ppb (1) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 31.0 ppb (24) 0.1 ppb (1) N/A 1.2 μg/m3 (5) 24.0
 
May 18, 2019, noon 0.9 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 31.0 ppb (24) 0.0 ppb (0) N/A 1.6 μg/m3 (7) 24.0
 
May 18, 2019, 11 a.m. 1.8 ppb (2) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (22) 0.0 ppb (0) N/A 2.2 μg/m3 (9) 22.0
 
May 18, 2019, 10 a.m. 5.3 ppb (5) 1.2 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 19.0 ppb (15) 0.0 ppb (0) N/A 2.8 μg/m3 (12) 15.0
 
May 18, 2019, 9 a.m. 5.2 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 18.0 ppb (14) 0.1 ppb (1) N/A 3.3 μg/m3 (14) 14.0
 
May 18, 2019, 8 a.m. 3.8 ppb (4) 0.0 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 19.0 ppb (15) 0.0 ppb (0) N/A 2.8 μg/m3 (12) 15.0
 
May 18, 2019, 7 a.m. 3.3 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.0 μg/m3 (8) 8.0
 
May 18, 2019, 6 a.m. 0.6 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 32.0 ppb (25) 0.0 ppb (0) N/A 1.5 μg/m3 (6) 25.0
 
May 18, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 3.2 μg/m3 (13) 27.0
 
May 18, 2019, 4 a.m. 0.6 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 37.0 ppb (28) 0.0 ppb (0) N/A 3.9 μg/m3 (16) 28.0
 
May 18, 2019, 3 a.m. 0.8 ppb (1) -0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (30) 0.0 ppb (0) N/A 4.6 μg/m3 (19) 30.0
 
May 18, 2019, 2 a.m. 1.3 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 45.0 ppb (35) 0.1 ppb (1) N/A 5.5 μg/m3 (23) 35.0
 
May 18, 2019, 1 a.m. 1.4 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 45.0 ppb (35) 0.1 ppb (1) N/A 6.2 μg/m3 (26) 35.0
 
May 18, 2019, midnight 1.5 ppb (1) 0.1 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 45.0 ppb (35) 0.0 ppb (0) N/A 6.7 μg/m3 (28) 35.0
 
May 17, 2019, 11 p.m. 1.9 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 55.0 ppb (42) 0.0 ppb (0) N/A 6.2 μg/m3 (26) 42.0
 
May 17, 2019, 10 p.m. 3.2 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 52.0 ppb (40) 0.1 ppb (1) N/A 7.4 μg/m3 (31) 40.0
 
May 17, 2019, 9 p.m. 3.0 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 49.0 ppb (38) 0.1 ppb (1) N/A 10.2 μg/m3 (42) 42.0
 
May 17, 2019, 8 p.m. 3.3 ppb (3) 0.5 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 50.0 ppb (38) 0.1 ppb (1) N/A 9.7 μg/m3 (40) 40.0
 
May 17, 2019, 7 p.m. 4.1 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 50.0 ppb (38) 0.1 ppb (1) N/A 9.9 μg/m3 (41) 41.0
 
May 17, 2019, 6 p.m. 3.8 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 50.0 ppb (38) 0.1 ppb (1) N/A 9.8 μg/m3 (41) 41.0
 
May 17, 2019, 5 p.m. 3.2 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 50.0 ppb (38) 0.1 ppb (1) N/A 9.7 μg/m3 (40) 40.0
 
May 17, 2019, 4 p.m. 4.0 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 46.0 ppb (35) 0.1 ppb (1) N/A 8.9 μg/m3 (37) 37.0
 
May 17, 2019, 3 p.m. 4.9 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 42.0 ppb (32) 0.1 ppb (1) N/A 8.1 μg/m3 (34) 34.0
 
May 17, 2019, 2 p.m. 10.2 ppb (9) 2.7 ppb (3) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 34.0 ppb (26) 0.2 ppb (2) N/A 7.5 μg/m3 (31) 31.0
 
May 17, 2019, 1 p.m. 10.3 ppb (10) 3.6 ppb (3) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 28.0 ppb (22) 0.3 ppb (3) N/A 6.3 μg/m3 (26) 26.0
 
May 17, 2019, noon 13.2 ppb (12) 5.3 ppb (5) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 25.0 ppb (19) 0.2 ppb (2) N/A 5.3 μg/m3 (22) 22.0
 
May 17, 2019, 11 a.m. 50.0 ppb (46) 29.4 ppb (27) N/A 20.0 ppb (19) N/A 1.0 ppb (1) 13.0 ppb (10) 0.2 ppb (2) N/A 5.9 μg/m3 (25) 46.0
 
May 17, 2019, 10 a.m. 5.5 ppb (5) 0.7 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 16.0 ppb (12) 0.1 ppb (1) N/A 6.8 μg/m3 (28) 28.0
 
May 17, 2019, 9 a.m. 7.4 ppb (7) 0.5 ppb (0) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 9.0 ppb (7) 0.1 ppb (1) N/A 7.6 μg/m3 (32) 32.0
 
May 17, 2019, 8 a.m. 6.1 ppb (6) 0.7 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 8.0 ppb (6) 0.1 ppb (1) N/A 6.7 μg/m3 (28) 28.0
 
May 17, 2019, 7 a.m. 10.3 ppb (10) 1.2 ppb (1) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 8.2 μg/m3 (34) 34.0
 
May 17, 2019, 6 a.m. 7.6 ppb (7) 0.8 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 5.0 ppb (4) 0.1 ppb (1) N/A 7.2 μg/m3 (30) 30.0
 
May 17, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (4) N/A N/A 7.2 μg/m3 (30) 30.0
 
May 17, 2019, 4 a.m. 7.8 ppb (7) 1.0 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 6.0 ppb (5) 0.1 ppb (1) N/A 7.0 μg/m3 (29) 29.0
 
May 17, 2019, 3 a.m. 7.4 ppb (7) 0.7 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 9.0 ppb (7) 0.2 ppb (2) N/A 9.6 μg/m3 (40) 40.0
 
May 17, 2019, 2 a.m. 10.6 ppb (10) 1.4 ppb (1) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 10.0 ppb (8) 0.1 ppb (1) N/A 8.2 μg/m3 (34) 34.0
 
May 17, 2019, 1 a.m. 10.6 ppb (10) 1.8 ppb (2) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 16.0 ppb (12) 0.2 ppb (2) N/A 8.5 μg/m3 (35) 35.0
 
May 17, 2019, midnight 10.9 ppb (10) 1.0 ppb (1) N/A 10.0 ppb (9) N/A 0.0 ppb (0) 21.0 ppb (16) 0.2 ppb (2) N/A 18.1 μg/m3 (63) 63.0
 
May 16, 2019, 11 p.m. 4.1 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 36.0 ppb (28) 0.1 ppb (1) N/A 4.9 μg/m3 (20) 28.0
 
May 16, 2019, 10 p.m. 2.6 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (30) 0.1 ppb (1) N/A 3.7 μg/m3 (15) 30.0
 
May 16, 2019, 9 p.m. 2.3 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 40.0 ppb (31) 0.1 ppb (1) N/A 3.6 μg/m3 (15) 31.0
 
May 16, 2019, 8 p.m. 1.9 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 3.6 μg/m3 (15) 31.0
 
May 16, 2019, 7 p.m. 1.6 ppb (1) 0.3 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (30) 0.1 ppb (1) N/A 3.6 μg/m3 (15) 30.0
 
May 16, 2019, 6 p.m. 1.8 ppb (2) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 39.0 ppb (30) 0.0 ppb (0) N/A 3.6 μg/m3 (15) 30.0
 
May 16, 2019, 5 p.m. 1.9 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 37.0 ppb (28) 0.1 ppb (1) N/A 3.8 μg/m3 (16) 28.0
 
May 16, 2019, 4 p.m. 5.4 ppb (5) 1.9 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 35.0 ppb (27) 0.1 ppb (1) N/A 3.7 μg/m3 (15) 27.0
 
May 16, 2019, 3 p.m. 2.8 ppb (3) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) 0.1 ppb (1) N/A 3.5 μg/m3 (15) 27.0
 
May 16, 2019, 2 p.m. 2.7 ppb (3) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 36.0 ppb (28) 0.1 ppb (1) N/A 3.6 μg/m3 (15) 28.0
 
May 16, 2019, 1 p.m. 3.2 ppb (3) 0.9 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) 0.1 ppb (1) N/A 4.2 μg/m3 (18) 23.0
 
May 16, 2019, noon 5.8 ppb (5) 2.0 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 22.0 ppb (17) 0.1 ppb (1) N/A 4.7 μg/m3 (20) 20.0
 
May 16, 2019, 11 a.m. 7.6 ppb (7) 2.8 ppb (3) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 14.0 ppb (11) 0.3 ppb (3) N/A 5.3 μg/m3 (22) 22.0
 
May 16, 2019, 10 a.m. 18.9 ppb (18) 12.6 ppb (12) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 8.0 ppb (6) 0.1 ppb (1) N/A 5.1 μg/m3 (21) 21.0
 
May 16, 2019, 9 a.m. 8.9 ppb (8) 1.8 ppb (2) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 5.0 ppb (4) 0.1 ppb (1) N/A 5.6 μg/m3 (23) 23.0
 
May 16, 2019, 8 a.m. 3.1 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 8.0 ppb (6) 0.0 ppb (0) N/A 5.2 μg/m3 (22) 22.0
 
May 16, 2019, 7 a.m. 4.4 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 5.8 μg/m3 (24) 24.0
 
May 16, 2019, 6 a.m. 5.1 ppb (5) 0.5 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 9.0 ppb (7) 0.1 ppb (1) N/A 5.0 μg/m3 (21) 21.0
 
May 16, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (10) N/A N/A 4.7 μg/m3 (20) 20.0
 
May 16, 2019, 4 a.m. 2.7 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 13.0 ppb (10) 0.1 ppb (1) N/A 4.8 μg/m3 (20) 20.0
 
May 16, 2019, 3 a.m. 5.5 ppb (5) 0.3 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 14.0 ppb (11) 0.1 ppb (1) N/A 5.2 μg/m3 (22) 22.0
 
May 16, 2019, 2 a.m. 5.7 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 17.0 ppb (13) 0.1 ppb (1) N/A 4.7 μg/m3 (20) 20.0
 
May 16, 2019, 1 a.m. 8.1 ppb (8) 0.9 ppb (1) N/A 7.0 ppb (6) N/A 0.0 ppb (0) 18.0 ppb (14) 0.1 ppb (1) N/A 5.2 μg/m3 (22) 22.0
 
May 16, 2019, midnight 7.3 ppb (7) 1.0 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 23.0 ppb (18) 0.1 ppb (1) N/A 5.6 μg/m3 (23) 23.0
 
May 15, 2019, 11 p.m. 5.7 ppb (5) 0.6 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 29.0 ppb (22) 0.1 ppb (1) N/A 4.5 μg/m3 (19) 22.0
 
May 15, 2019, 10 p.m. 4.0 ppb (4) 0.5 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 35.0 ppb (27) 0.1 ppb (1) N/A 3.8 μg/m3 (16) 27.0
 
May 15, 2019, 9 p.m. 3.8 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 37.0 ppb (28) 0.1 ppb (1) N/A 3.3 μg/m3 (14) 28.0
 
May 15, 2019, 8 p.m. 2.2 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (30) 0.1 ppb (1) N/A 2.9 μg/m3 (12) 30.0
 
May 15, 2019, 7 p.m. N/A N/A N/A N/A N/A 0.0 ppb (0) 39.0 ppb (30) N/A N/A 3.0 μg/m3 (12) 30.0
 
May 15, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 3.3 μg/m3 (14) 30.0
 
May 15, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 3.6 μg/m3 (15) 28.0
 
May 15, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 3.7 μg/m3 (15) 28.0
 
May 15, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 5.0 μg/m3 (21) 27.0
 
May 15, 2019, 2 p.m. 3.3 ppb (3) 1.0 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (25) 0.1 ppb (1) N/A 5.6 μg/m3 (23) 25.0
 
May 15, 2019, 1 p.m. 4.2 ppb (4) 1.3 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 30.0 ppb (23) 0.1 ppb (1) N/A 6.0 μg/m3 (25) 25.0
 
May 15, 2019, noon 4.7 ppb (4) 1.2 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 28.0 ppb (22) 0.1 ppb (1) N/A 7.3 μg/m3 (30) 30.0
 
May 15, 2019, 11 a.m. 3.6 ppb (3) 0.9 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 28.0 ppb (22) 0.1 ppb (1) N/A 6.1 μg/m3 (25) 25.0
 
May 15, 2019, 10 a.m. 2.4 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) 0.0 ppb (0) N/A 4.8 μg/m3 (20) 23.0
 
May 15, 2019, 9 a.m. 1.8 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) 0.0 ppb (0) N/A 3.7 μg/m3 (15) 23.0
 
May 15, 2019, 8 a.m. 1.0 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 31.0 ppb (24) 0.0 ppb (0) N/A 2.5 μg/m3 (10) 24.0
 
May 15, 2019, 7 a.m. 1.4 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A 0.0 ppb (0) N/A 2.6 μg/m3 (11) 11.0
 
May 15, 2019, 6 a.m. 1.5 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 29.0 ppb (22) 0.0 ppb (0) N/A 3.0 μg/m3 (12) 22.0
 
May 15, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (21) N/A N/A 2.8 μg/m3 (12) 21.0
 
May 15, 2019, 4 a.m. 2.2 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 23.0 ppb (18) 0.0 ppb (0) N/A 2.2 μg/m3 (9) 18.0
 
May 15, 2019, 3 a.m. 2.2 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 21.0 ppb (16) 0.0 ppb (0) N/A 2.3 μg/m3 (10) 16.0
 
May 15, 2019, 2 a.m. 3.1 ppb (3) 0.0 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 22.0 ppb (17) 0.0 ppb (0) N/A 2.2 μg/m3 (9) 17.0
 
May 15, 2019, 1 a.m. 4.2 ppb (4) 0.5 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 25.0 ppb (19) 0.1 ppb (1) N/A 1.5 μg/m3 (6) 19.0
 
May 15, 2019, midnight N/A N/A N/A N/A N/A N/A 28.0 ppb (22) N/A N/A 1.2 μg/m3 (5) 22.0
 
May 14, 2019, 11 p.m. 3.4 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 1.5 μg/m3 (6) 6.0
 
May 14, 2019, 10 p.m. 3.2 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 29.0 ppb (22) 0.1 ppb (1) N/A 1.6 μg/m3 (7) 22.0
 
May 14, 2019, 9 p.m. 2.5 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 30.0 ppb (23) 0.1 ppb (1) N/A 1.1 μg/m3 (5) 23.0
 
May 14, 2019, 8 p.m. 4.1 ppb (4) 1.3 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 32.0 ppb (25) 0.1 ppb (1) N/A 1.2 μg/m3 (5) 25.0
 
May 14, 2019, 7 p.m. 4.3 ppb (4) 1.3 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (25) 0.1 ppb (1) N/A 2.0 μg/m3 (8) 25.0
 
May 14, 2019, 6 p.m. 4.7 ppb (4) 1.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (25) 0.1 ppb (1) N/A 2.3 μg/m3 (10) 25.0
 
May 14, 2019, 5 p.m. 5.1 ppb (5) 1.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (26) 0.1 ppb (1) N/A 1.3 μg/m3 (5) 26.0
 
May 14, 2019, 4 p.m. 2.3 ppb (2) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 35.0 ppb (27) 0.1 ppb (1) N/A 0.9 μg/m3 (4) 27.0
 
May 14, 2019, 3 p.m. 4.5 ppb (4) 2.1 ppb (2) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 0.9 μg/m3 (4) 4.0
 
May 14, 2019, 2 p.m. 4.8 ppb (4) 2.0 ppb (2) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 34.0 ppb (26) 0.1 ppb (1) N/A 1.1 μg/m3 (5) 26.0
 
May 14, 2019, 1 p.m. 3.0 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 32.0 ppb (25) 0.1 ppb (1) N/A 1.0 μg/m3 (4) 25.0
 
May 14, 2019, noon 5.8 ppb (5) 2.1 ppb (2) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 27.0 ppb (21) 0.3 ppb (3) N/A 1.7 μg/m3 (7) 21.0