AQSQID: 500210002

Site Name: Rutland

Location: Rutland, VT

Reporting: True, Located: True

Current AQI: 33.0

Rutland VT, US: 43.608528, -72.98246

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 23, 2019, 3 p.m. 3.0 ppb (3) 0.7 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 43.0 ppb (33) 0.1 ppb (1) N/A 2.6 μg/m3 (11) 33.0
 
March 23, 2019, 2 p.m. 4.1 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 41.0 ppb (32) 0.1 ppb (1) N/A 2.8 μg/m3 (12) 32.0
 
March 23, 2019, 1 p.m. 2.8 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 42.0 ppb (32) 0.1 ppb (1) N/A 2.8 μg/m3 (12) 32.0
 
March 23, 2019, noon 2.3 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 42.0 ppb (32) 0.1 ppb (1) N/A 3.4 μg/m3 (14) 32.0
 
March 23, 2019, 11 a.m. 2.9 ppb (3) 0.4 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 40.0 ppb (31) 0.1 ppb (1) N/A 1.6 μg/m3 (7) 31.0
 
March 23, 2019, 10 a.m. 4.2 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 38.0 ppb (29) 0.1 ppb (1) N/A 2.3 μg/m3 (10) 29.0
 
March 23, 2019, 9 a.m. 2.5 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 39.0 ppb (30) 0.1 ppb (1) N/A 0.9 μg/m3 (4) 30.0
 
March 23, 2019, 8 a.m. 8.3 ppb (8) 3.3 ppb (3) N/A 5.0 ppb (5) N/A 1.0 ppb (1) 37.0 ppb (28) 0.1 ppb (1) N/A 1.1 μg/m3 (5) 28.0
 
March 23, 2019, 7 a.m. 2.1 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 0.9 μg/m3 (4) 4.0
 
March 23, 2019, 6 a.m. 3.0 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 33.0 ppb (25) 0.1 ppb (1) N/A 1.3 μg/m3 (5) 25.0
 
March 23, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 0.9 μg/m3 (4) 25.0
 
March 23, 2019, 4 a.m. 2.3 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 31.0 ppb (24) 0.1 ppb (1) N/A 0.5 μg/m3 (2) 24.0
 
March 23, 2019, 3 a.m. 3.9 ppb (4) 0.2 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 29.0 ppb (22) 0.1 ppb (1) N/A 0.8 μg/m3 (3) 22.0
 
March 23, 2019, 2 a.m. 8.5 ppb (8) 0.4 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 33.0 ppb (25) 0.2 ppb (2) N/A 2.5 μg/m3 (10) 25.0
 
March 23, 2019, 1 a.m. 11.4 ppb (11) 0.4 ppb (0) N/A 11.0 ppb (10) N/A 0.0 ppb (0) 33.0 ppb (25) 0.2 ppb (2) N/A 4.1 μg/m3 (17) 25.0
 
March 23, 2019, midnight 13.8 ppb (13) 1.0 ppb (1) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 33.0 ppb (25) 0.2 ppb (2) N/A 3.7 μg/m3 (15) 25.0
 
March 22, 2019, 11 p.m. 4.8 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 45.0 ppb (35) 0.1 ppb (1) N/A 1.4 μg/m3 (6) 35.0
 
March 22, 2019, 10 p.m. 5.0 ppb (5) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 47.0 ppb (36) 0.1 ppb (1) N/A 1.0 μg/m3 (4) 36.0
 
March 22, 2019, 9 p.m. 4.9 ppb (5) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) 47.0 ppb (36) 0.1 ppb (1) N/A 1.5 μg/m3 (6) 36.0
 
March 22, 2019, 8 p.m. 4.4 ppb (4) 0.9 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 47.0 ppb (36) 0.2 ppb (2) N/A 1.8 μg/m3 (8) 36.0
 
March 22, 2019, 7 p.m. 3.8 ppb (4) 0.7 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 45.0 ppb (35) 0.1 ppb (1) N/A 1.7 μg/m3 (7) 35.0
 
March 22, 2019, 6 p.m. 4.3 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 1.0 ppb (1) 43.0 ppb (33) 0.1 ppb (1) N/A 0.9 μg/m3 (4) 33.0
 
March 22, 2019, 5 p.m. 4.8 ppb (4) 0.9 ppb (1) N/A 4.0 ppb (4) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 0.6 μg/m3 (2) 4.0
 
March 22, 2019, 4 p.m. 9.2 ppb (9) 3.1 ppb (3) N/A 6.0 ppb (6) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 0.7 μg/m3 (3) 9.0
 
March 22, 2019, 3 p.m. 5.7 ppb (5) 1.6 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A N/A N/A 0.7 μg/m3 (3) 5.0
 
March 22, 2019, 2 p.m. 4.5 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 0.7 μg/m3 (3) 4.0
 
March 22, 2019, 1 p.m. 5.5 ppb (5) 1.0 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 2.0 μg/m3 (8) 8.0
 
March 22, 2019, noon 3.9 ppb (4) 0.5 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 2.5 μg/m3 (10) 10.0
 
March 22, 2019, 11 a.m. 5.2 ppb (5) 0.7 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 2.6 μg/m3 (11) 11.0
 
March 22, 2019, 10 a.m. 6.1 ppb (6) 0.4 ppb (0) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 3.3 μg/m3 (14) 14.0
 
March 22, 2019, 9 a.m. 6.6 ppb (6) 0.8 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 4.2 μg/m3 (18) 18.0
 
March 22, 2019, 8 a.m. 6.3 ppb (6) 0.8 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 4.8 μg/m3 (20) 20.0
 
March 22, 2019, 7 a.m. 8.7 ppb (8) 1.8 ppb (2) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 5.6 μg/m3 (23) 23.0
 
March 22, 2019, 6 a.m. 42.0 ppb (39) 18.7 ppb (17) N/A 23.0 ppb (21) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 5.6 μg/m3 (23) 39.0
 
March 22, 2019, 5 a.m. 20.5 ppb (19) 6.7 ppb (6) N/A 14.0 ppb (13) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 6.1 μg/m3 (25) 25.0
 
March 22, 2019, 4 a.m. 24.9 ppb (23) 9.1 ppb (8) N/A 16.0 ppb (15) N/A 1.0 ppb (1) N/A 0.1 ppb (1) N/A 5.4 μg/m3 (23) 23.0
 
March 22, 2019, 3 a.m. 10.6 ppb (10) 0.7 ppb (1) N/A 10.0 ppb (9) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 5.8 μg/m3 (24) 24.0
 
March 22, 2019, 2 a.m. 13.0 ppb (12) 3.2 ppb (3) N/A 10.0 ppb (9) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 4.6 μg/m3 (19) 19.0
 
March 22, 2019, 1 a.m. 33.5 ppb (31) 11.9 ppb (11) N/A 22.0 ppb (20) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 6.7 μg/m3 (28) 31.0
 
March 22, 2019, midnight 9.0 ppb (8) 0.9 ppb (1) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 7.1 μg/m3 (30) 30.0
 
March 21, 2019, 11 p.m. 14.9 ppb (14) 1.8 ppb (2) N/A 13.0 ppb (12) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 7.2 μg/m3 (30) 30.0
 
March 21, 2019, 10 p.m. 16.6 ppb (15) 3.1 ppb (3) N/A 13.0 ppb (12) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 8.5 μg/m3 (35) 35.0
 
March 21, 2019, 9 p.m. 11.8 ppb (11) 1.9 ppb (2) N/A 10.0 ppb (9) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 8.4 μg/m3 (35) 35.0
 
March 21, 2019, 8 p.m. 9.0 ppb (8) 1.8 ppb (2) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 7.3 μg/m3 (30) 30.0
 
March 21, 2019, 7 p.m. 9.8 ppb (9) 2.2 ppb (2) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 5.2 μg/m3 (22) 22.0
 
March 21, 2019, 6 p.m. 9.3 ppb (9) 1.9 ppb (2) N/A 7.0 ppb (6) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 6.0 μg/m3 (25) 25.0
 
March 21, 2019, 5 p.m. 7.3 ppb (7) 1.5 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 7.3 μg/m3 (30) 30.0
 
March 21, 2019, 4 p.m. 7.7 ppb (7) 1.8 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 7.2 μg/m3 (30) 30.0
 
March 21, 2019, 3 p.m. 8.3 ppb (8) 1.9 ppb (2) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 6.4 μg/m3 (27) 27.0
 
March 21, 2019, 2 p.m. 15.2 ppb (14) 5.0 ppb (5) N/A 10.0 ppb (9) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 6.9 μg/m3 (29) 29.0
 
March 21, 2019, 1 p.m. 11.6 ppb (11) 2.9 ppb (3) N/A 9.0 ppb (8) N/A 0.0 ppb (0) N/A 0.7 ppb (8) N/A 9.3 μg/m3 (39) 39.0
 
March 21, 2019, noon 48.0 ppb (44) 22.7 ppb (21) N/A 25.0 ppb (23) N/A 1.0 ppb (1) N/A 0.6 ppb (7) N/A 21.7 μg/m3 (71) 71.0
 
March 21, 2019, 11 a.m. 66.3 ppb (63) 36.5 ppb (34) N/A 30.0 ppb (28) N/A 1.0 ppb (1) N/A 0.9 ppb (10) N/A 24.7 μg/m3 (77) 77.0
 
March 21, 2019, 10 a.m. 47.5 ppb (44) 18.9 ppb (18) N/A 28.0 ppb (26) N/A 1.0 ppb (1) N/A 0.5 ppb (6) N/A 19.3 μg/m3 (66) 66.0
 
March 21, 2019, 9 a.m. 26.0 ppb (24) 5.0 ppb (5) N/A 21.0 ppb (19) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 16.4 μg/m3 (59) 59.0
 
March 21, 2019, 8 a.m. 20.8 ppb (19) 2.7 ppb (3) N/A 18.0 ppb (17) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 18.0 μg/m3 (63) 63.0
 
March 21, 2019, 7 a.m. 22.7 ppb (21) 4.1 ppb (4) N/A 19.0 ppb (18) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 18.1 μg/m3 (63) 63.0
 
March 21, 2019, 6 a.m. 23.1 ppb (21) 3.7 ppb (3) N/A 19.0 ppb (18) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 22.1 μg/m3 (71) 71.0
 
March 21, 2019, 5 a.m. 19.7 ppb (18) 2.7 ppb (3) N/A 17.0 ppb (16) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 19.9 μg/m3 (67) 67.0
 
March 21, 2019, 4 a.m. 16.8 ppb (16) 1.9 ppb (2) N/A 15.0 ppb (14) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 17.9 μg/m3 (63) 63.0
 
March 21, 2019, 3 a.m. 23.6 ppb (22) 2.5 ppb (2) N/A 21.0 ppb (19) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 20.3 μg/m3 (68) 68.0
 
March 21, 2019, 2 a.m. 25.4 ppb (24) 3.7 ppb (3) N/A 22.0 ppb (20) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 24.3 μg/m3 (76) 76.0
 
March 21, 2019, 1 a.m. 32.7 ppb (30) 6.5 ppb (6) N/A 26.0 ppb (24) N/A 0.0 ppb (0) N/A 0.5 ppb (6) N/A 26.7 μg/m3 (81) 81.0
 
March 21, 2019, midnight 31.8 ppb (29) 4.8 ppb (4) N/A 27.0 ppb (25) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 24.0 μg/m3 (76) 76.0
 
March 20, 2019, 11 p.m. 28.7 ppb (27) 5.4 ppb (5) N/A 23.0 ppb (21) N/A 0.0 ppb (0) N/A 0.3 ppb (3) N/A 23.2 μg/m3 (74) 74.0
 
March 20, 2019, 10 p.m. 6.9 ppb (6) 1.1 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 8.9 μg/m3 (37) 37.0
 
March 20, 2019, 9 p.m. 5.0 ppb (5) 0.9 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 8.6 μg/m3 (36) 36.0
 
March 20, 2019, 8 p.m. 4.7 ppb (4) 0.8 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 9.4 μg/m3 (39) 39.0
 
March 20, 2019, 7 p.m. 6.2 ppb (6) 1.4 ppb (1) N/A 5.0 ppb (5) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 9.4 μg/m3 (39) 39.0
 
March 20, 2019, 6 p.m. 3.8 ppb (4) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 9.5 μg/m3 (40) 40.0
 
March 20, 2019, 5 p.m. 3.9 ppb (4) 0.8 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 10.4 μg/m3 (43) 43.0
 
March 20, 2019, 4 p.m. 5.4 ppb (5) 1.6 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 9.0 μg/m3 (38) 38.0
 
March 20, 2019, 3 p.m. 5.4 ppb (5) 1.1 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 9.2 μg/m3 (38) 38.0
 
March 20, 2019, 2 p.m. 18.9 ppb (18) 5.6 ppb (5) N/A 13.0 ppb (12) N/A N/A N/A N/A N/A 16.6 μg/m3 (60) 60.0
 
March 20, 2019, 1 p.m. 28.7 ppb (27) 10.4 ppb (10) N/A 18.0 ppb (17) N/A 0.0 ppb (0) N/A 0.6 ppb (7) N/A 14.6 μg/m3 (56) 56.0
 
March 20, 2019, noon 38.8 ppb (36) 16.9 ppb (16) N/A 22.0 ppb (20) N/A 0.0 ppb (0) 14.0 ppb (11) 0.9 ppb (10) N/A 15.2 μg/m3 (57) 57.0
 
March 20, 2019, 11 a.m. 56.8 ppb (53) 31.1 ppb (29) N/A 26.0 ppb (24) N/A 1.0 ppb (1) 4.0 ppb (3) 0.6 ppb (7) N/A 17.5 μg/m3 (62) 62.0
 
March 20, 2019, 10 a.m. 47.7 ppb (44) 22.9 ppb (21) N/A 25.0 ppb (23) N/A 0.0 ppb (0) 2.0 ppb (2) 0.5 ppb (6) N/A 19.3 μg/m3 (66) 66.0
 
March 20, 2019, 9 a.m. 37.2 ppb (34) 12.9 ppb (12) N/A 24.0 ppb (22) N/A 0.0 ppb (0) 3.0 ppb (2) 0.3 ppb (3) N/A 11.8 μg/m3 (49) 49.0
 
March 20, 2019, 8 a.m. 32.4 ppb (30) 9.7 ppb (9) N/A 23.0 ppb (21) N/A 0.0 ppb (0) 3.0 ppb (2) 0.3 ppb (3) N/A 12.6 μg/m3 (51) 51.0
 
March 20, 2019, 7 a.m. 34.2 ppb (32) 11.8 ppb (11) N/A 22.0 ppb (20) N/A 0.0 ppb (0) N/A 0.4 ppb (4) N/A 16.2 μg/m3 (59) 59.0
 
March 20, 2019, 6 a.m. 26.2 ppb (24) 6.0 ppb (6) N/A 20.0 ppb (19) N/A 0.0 ppb (0) 5.0 ppb (4) 0.3 ppb (3) N/A 17.1 μg/m3 (61) 61.0
 
March 20, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (5) N/A N/A 20.0 μg/m3 (67) 67.0
 
March 20, 2019, 4 a.m. 26.4 ppb (24) 5.7 ppb (5) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 5.0 ppb (4) 0.4 ppb (4) N/A 22.8 μg/m3 (73) 73.0
 
March 20, 2019, 3 a.m. 30.4 ppb (28) 6.8 ppb (6) N/A 24.0 ppb (22) N/A 0.0 ppb (0) 6.0 ppb (5) 0.5 ppb (6) N/A 37.3 μg/m3 (104) 104.0
 
March 20, 2019, 2 a.m. 24.0 ppb (22) 3.3 ppb (3) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 12.0 ppb (9) 0.4 ppb (4) N/A 24.8 μg/m3 (77) 77.0
 
March 20, 2019, 1 a.m. 18.9 ppb (18) 1.4 ppb (1) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 19.0 ppb (15) 0.3 ppb (3) N/A 18.8 μg/m3 (64) 64.0
 
March 20, 2019, midnight N/A N/A N/A N/A N/A N/A 22.0 ppb (17) N/A N/A 14.8 μg/m3 (56) 56.0
 
March 19, 2019, 11 p.m. 8.4 ppb (8) 0.5 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) N/A 0.2 ppb (2) N/A 6.8 μg/m3 (28) 28.0
 
March 19, 2019, 10 p.m. 4.5 ppb (4) 0.6 ppb (1) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 46.0 ppb (35) 0.1 ppb (1) N/A 4.2 μg/m3 (18) 35.0
 
March 19, 2019, 9 p.m. 3.2 ppb (3) 0.6 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 48.0 ppb (37) 0.1 ppb (1) N/A 3.4 μg/m3 (14) 37.0
 
March 19, 2019, 8 p.m. 2.4 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 50.0 ppb (38) 0.2 ppb (2) N/A 3.3 μg/m3 (14) 38.0
 
March 19, 2019, 7 p.m. 2.3 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 50.0 ppb (38) 0.1 ppb (1) N/A 3.5 μg/m3 (15) 38.0
 
March 19, 2019, 6 p.m. 1.9 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 50.0 ppb (38) 0.1 ppb (1) N/A 4.1 μg/m3 (17) 38.0
 
March 19, 2019, 5 p.m. 2.6 ppb (2) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 49.0 ppb (38) 0.1 ppb (1) N/A 4.2 μg/m3 (18) 38.0
 
March 19, 2019, 4 p.m. 2.8 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 48.0 ppb (37) 0.1 ppb (1) N/A 4.5 μg/m3 (19) 37.0
 
March 19, 2019, 3 p.m. 3.9 ppb (4) 1.0 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 47.0 ppb (36) 0.1 ppb (1) N/A 4.3 μg/m3 (18) 36.0
 
March 19, 2019, 2 p.m. 4.4 ppb (4) 1.1 ppb (1) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 45.0 ppb (35) 0.1 ppb (1) N/A 5.5 μg/m3 (23) 35.0
 
March 19, 2019, 1 p.m. 11.1 ppb (10) 2.4 ppb (2) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 37.0 ppb (28) 0.2 ppb (2) N/A 7.7 μg/m3 (32) 32.0
 
March 19, 2019, noon 23.9 ppb (22) 7.0 ppb (6) N/A 17.0 ppb (16) N/A 0.0 ppb (0) 23.0 ppb (18) 0.3 ppb (3) N/A 10.9 μg/m3 (45) 45.0
 
March 19, 2019, 11 a.m. 36.9 ppb (34) 10.2 ppb (9) N/A 27.0 ppb (25) N/A 0.0 ppb (0) 12.0 ppb (9) 0.4 ppb (4) N/A 12.9 μg/m3 (52) 52.0
 
March 19, 2019, 10 a.m. 15.5 ppb (14) 2.8 ppb (3) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 30.0 ppb (23) 0.2 ppb (2) N/A 8.2 μg/m3 (34) 34.0
 
March 19, 2019, 9 a.m. 6.9 ppb (6) 0.9 ppb (1) N/A 6.0 ppb (6) N/A 0.0 ppb (0) 40.0 ppb (31) 0.2 ppb (2) N/A 8.7 μg/m3 (36) 36.0
 
March 19, 2019, 8 a.m. 4.8 ppb (4) 0.3 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 41.0 ppb (32) 0.1 ppb (1) N/A 6.2 μg/m3 (26) 32.0
 
March 19, 2019, 7 a.m. 3.7 ppb (3) 0.1 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 6.1 μg/m3 (25) 25.0
 
March 19, 2019, 6 a.m. 25.2 ppb (23) 6.2 ppb (6) N/A 19.0 ppb (18) N/A 0.0 ppb (0) 20.0 ppb (15) 0.2 ppb (2) N/A 10.8 μg/m3 (45) 45.0
 
March 19, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (3) N/A N/A 13.7 μg/m3 (54) 54.0
 
March 19, 2019, 4 a.m. 28.8 ppb (27) 2.7 ppb (3) N/A 26.0 ppb (24) N/A 0.0 ppb (0) 9.0 ppb (7) 0.3 ppb (3) N/A 10.2 μg/m3 (42) 42.0
 
March 19, 2019, 3 a.m. 23.0 ppb (21) 2.2 ppb (2) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 18.0 ppb (14) 0.3 ppb (3) N/A 8.9 μg/m3 (37) 37.0
 
March 19, 2019, 2 a.m. 8.9 ppb (8) 0.5 ppb (0) N/A 8.0 ppb (7) N/A 0.0 ppb (0) 36.0 ppb (28) 0.2 ppb (2) N/A 5.3 μg/m3 (22) 28.0
 
March 19, 2019, 1 a.m. 13.3 ppb (12) 0.8 ppb (1) N/A 13.0 ppb (12) N/A 0.0 ppb (0) 30.0 ppb (23) 0.2 ppb (2) N/A 7.4 μg/m3 (31) 31.0
 
March 19, 2019, midnight 15.7 ppb (15) 1.6 ppb (1) N/A 14.0 ppb (13) N/A 0.0 ppb (0) 29.0 ppb (22) 0.3 ppb (3) N/A 13.4 μg/m3 (53) 53.0
 
March 18, 2019, 11 p.m. 5.5 ppb (5) 0.4 ppb (0) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 43.0 ppb (33) 0.1 ppb (1) N/A 4.0 μg/m3 (17) 33.0
 
March 18, 2019, 10 p.m. 2.8 ppb (3) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 48.0 ppb (37) 0.1 ppb (1) N/A 3.3 μg/m3 (14) 37.0
 
March 18, 2019, 9 p.m. 2.7 ppb (3) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 48.0 ppb (37) 0.1 ppb (1) N/A 3.3 μg/m3 (14) 37.0
 
March 18, 2019, 8 p.m. 2.7 ppb (3) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 47.0 ppb (36) 0.1 ppb (1) N/A 3.2 μg/m3 (13) 36.0
 
March 18, 2019, 7 p.m. 3.1 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 47.0 ppb (36) 0.1 ppb (1) N/A 3.4 μg/m3 (14) 36.0
 
March 18, 2019, 6 p.m. 2.5 ppb (2) 0.6 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 48.0 ppb (37) 0.1 ppb (1) N/A 3.5 μg/m3 (15) 37.0
 
March 18, 2019, 5 p.m. 3.1 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 47.0 ppb (36) 0.1 ppb (1) N/A 3.3 μg/m3 (14) 36.0
 
March 18, 2019, 4 p.m. 3.1 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 48.0 ppb (37) 0.1 ppb (1) N/A 3.2 μg/m3 (13) 37.0
 
March 18, 2019, 3 p.m. 2.2 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 47.0 ppb (36) 0.1 ppb (1) N/A 3.4 μg/m3 (14) 36.0
 
March 18, 2019, 2 p.m. 3.3 ppb (3) 0.8 ppb (1) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 46.0 ppb (35) 0.1 ppb (1) N/A 3.5 μg/m3 (15) 35.0
 
March 18, 2019, 1 p.m. 7.2 ppb (7) 2.0 ppb (2) N/A 5.0 ppb (5) N/A 0.0 ppb (0) 40.0 ppb (31) 0.4 ppb (4) N/A 4.2 μg/m3 (18) 31.0
 
March 18, 2019, noon 44.5 ppb (41) 20.3 ppb (19) N/A 24.0 ppb (22) N/A 0.0 ppb (0) 18.0 ppb (14) 0.4 ppb (4) N/A 10.0 μg/m3 (42) 42.0
 
March 18, 2019, 11 a.m. 50.0 ppb (46) 20.1 ppb (19) N/A 30.0 ppb (28) N/A 0.0 ppb (0) 6.0 ppb (5) 0.6 ppb (7) N/A 10.1 μg/m3 (42) 46.0
 
March 18, 2019, 10 a.m. 23.7 ppb (22) 2.6 ppb (2) N/A 21.0 ppb (19) N/A 0.0 ppb (0) 19.0 ppb (15) 0.2 ppb (2) N/A 4.8 μg/m3 (20) 22.0
 
March 18, 2019, 9 a.m. 10.7 ppb (10) 1.7 ppb (2) N/A 9.0 ppb (8) N/A 0.0 ppb (0) 35.0 ppb (27) 0.2 ppb (2) N/A 4.3 μg/m3 (18) 27.0
 
March 18, 2019, 8 a.m. 4.2 ppb (4) 0.4 ppb (0) N/A 4.0 ppb (4) N/A 0.0 ppb (0) 41.0 ppb (32) 0.1 ppb (1) N/A 4.3 μg/m3 (18) 32.0
 
March 18, 2019, 7 a.m. 2.9 ppb (3) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 3.2 μg/m3 (13) 13.0
 
March 18, 2019, 6 a.m. 2.5 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 45.0 ppb (35) 0.1 ppb (1) N/A 3.2 μg/m3 (13) 35.0
 
March 18, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 3.1 μg/m3 (13) 35.0
 
March 18, 2019, 4 a.m. 3.2 ppb (3) -0.1 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 43.0 ppb (33) 0.1 ppb (1) N/A 3.3 μg/m3 (14) 33.0
 
March 18, 2019, 3 a.m. 3.2 ppb (3) 0.1 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 44.0 ppb (34) 0.1 ppb (1) N/A 3.2 μg/m3 (13) 34.0
 
March 18, 2019, 2 a.m. 3.5 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) 44.0 ppb (34) 0.1 ppb (1) N/A 3.1 μg/m3 (13) 34.0
 
March 18, 2019, 1 a.m. 2.8 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 2.8 μg/m3 (12) 35.0
 
March 18, 2019, midnight 1.8 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 46.0 ppb (35) 0.1 ppb (1) N/A 2.8 μg/m3 (12) 35.0
 
March 17, 2019, 11 p.m. 2.3 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 46.0 ppb (35) 0.1 ppb (1) N/A 3.0 μg/m3 (12) 35.0
 
March 17, 2019, 10 p.m. 1.8 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 46.0 ppb (35) 0.1 ppb (1) N/A 3.6 μg/m3 (15) 35.0
 
March 17, 2019, 9 p.m. 1.6 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 46.0 ppb (35) 0.1 ppb (1) N/A 3.4 μg/m3 (14) 35.0
 
March 17, 2019, 8 p.m. 1.4 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 3.2 μg/m3 (13) 35.0
 
March 17, 2019, 7 p.m. 1.3 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 3.1 μg/m3 (13) 35.0
 
March 17, 2019, 6 p.m. 1.4 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 3.1 μg/m3 (13) 35.0
 
March 17, 2019, 5 p.m. 1.7 ppb (2) 0.4 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 45.0 ppb (35) 0.1 ppb (1) N/A 3.4 μg/m3 (14) 35.0
 
March 17, 2019, 4 p.m. 2.0 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 45.0 ppb (35) 0.1 ppb (1) N/A 2.8 μg/m3 (12) 35.0
 
March 17, 2019, 3 p.m. 2.2 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 43.0 ppb (33) 0.1 ppb (1) N/A 3.0 μg/m3 (12) 33.0
 
March 17, 2019, 2 p.m. 2.3 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 43.0 ppb (33) 0.1 ppb (1) N/A 3.7 μg/m3 (15) 33.0
 
March 17, 2019, 1 p.m. 2.8 ppb (3) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 3.7 μg/m3 (15) 15.0
 
March 17, 2019, noon 2.9 ppb (3) 0.5 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 3.5 μg/m3 (15) 15.0
 
March 17, 2019, 11 a.m. 2.9 ppb (3) 0.3 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 3.6 μg/m3 (15) 15.0
 
March 17, 2019, 10 a.m. 2.8 ppb (3) 0.2 ppb (0) N/A 3.0 ppb (3) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 3.1 μg/m3 (13) 13.0
 
March 17, 2019, 9 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 3.2 μg/m3 (13) 13.0
 
March 17, 2019, 8 a.m. 2.4 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 3.0 μg/m3 (12) 12.0
 
March 17, 2019, 7 a.m. 1.2 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) N/A 0.1 ppb (1) N/A 1.7 μg/m3 (7) 7.0
 
March 17, 2019, 6 a.m. 1.4 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 47.0 ppb (36) 0.1 ppb (1) N/A 1.9 μg/m3 (8) 36.0
 
March 17, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 2.8 μg/m3 (12) 36.0
 
March 17, 2019, 4 a.m. 1.2 ppb (1) 0.0 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 47.0 ppb (36) 0.1 ppb (1) N/A 3.0 μg/m3 (12) 36.0
 
March 17, 2019, 3 a.m. 1.7 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) 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 a.m. 2.1 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 44.0 ppb (34) 0.1 ppb (1) N/A 2.3 μg/m3 (10) 34.0
 
March 17, 2019, 1 a.m. 1.9 ppb (2) 0.0 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 43.0 ppb (33) 0.1 ppb (1) N/A 2.4 μg/m3 (10) 33.0
 
March 17, 2019, midnight 1.7 ppb (2) 0.1 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 45.0 ppb (35) 0.1 ppb (1) N/A 2.4 μg/m3 (10) 35.0
 
March 16, 2019, 11 p.m. 2.1 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 45.0 ppb (35) 0.1 ppb (1) N/A 2.4 μg/m3 (10) 35.0
 
March 16, 2019, 10 p.m. 1.7 ppb (2) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 46.0 ppb (35) 0.1 ppb (1) N/A 3.5 μg/m3 (15) 35.0
 
March 16, 2019, 9 p.m. 1.8 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 47.0 ppb (36) 0.1 ppb (1) N/A 3.0 μg/m3 (12) 36.0
 
March 16, 2019, 8 p.m. 2.0 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 48.0 ppb (37) 0.1 ppb (1) N/A 2.7 μg/m3 (11) 37.0
 
March 16, 2019, 7 p.m. 1.9 ppb (2) 0.4 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 49.0 ppb (38) 0.1 ppb (1) N/A 2.7 μg/m3 (11) 38.0
 
March 16, 2019, 6 p.m. 1.5 ppb (1) 0.2 ppb (0) N/A 1.0 ppb (1) N/A 0.0 ppb (0) 49.0 ppb (38) 0.1 ppb (1) N/A 3.0 μg/m3 (12) 38.0
 
March 16, 2019, 5 p.m. 1.9 ppb (2) 0.2 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 48.0 ppb (37) 0.1 ppb (1) N/A 2.8 μg/m3 (12) 37.0
 
March 16, 2019, 4 p.m. 2.1 ppb (2) 0.3 ppb (0) N/A 2.0 ppb (2) N/A 0.0 ppb (0) 47.0 ppb (36) 0.1 ppb (1) N/A 2.2 μg/m3 (9) 36.0