ID: 883

AQSQID: 511611004

Site Name: East Vinton Elementary School

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

Updated: Sept. 22, 2021, 11:59 a.m.

Location: Roanoke (Gates Lane), VA

Reporting: True, Located: True

Current AQI: 20.0

Roanoke (Gates Lane) VA, US: 37.285599, -79.884201

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 15, 2021, 10 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 18.0 ppb (17) 0.5 ppb (6) N/A 17.3 μg/m3 (62) 62.0
 
Sept. 15, 2021, 9 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 14.0 ppb (13) 0.4 ppb (5) N/A 17.7 μg/m3 (63) 63.0
 
Sept. 15, 2021, 8 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 16.0 ppb (15) 0.4 ppb (5) N/A 16.9 μg/m3 (62) 62.0
 
Sept. 15, 2021, 7 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 16.0 ppb (15) 0.4 ppb (5) N/A 16.9 μg/m3 (62) 62.0
 
Sept. 15, 2021, 6 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 15.0 ppb (14) 0.4 ppb (5) N/A 16.6 μg/m3 (61) 61.0
 
Sept. 15, 2021, 5 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 25.0 ppb (24) 0.4 ppb (5) N/A 16.8 μg/m3 (61) 61.0
 
Sept. 15, 2021, 4 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 29.0 ppb (27) 0.4 ppb (5) N/A 16.5 μg/m3 (61) 61.0
 
Sept. 15, 2021, 3 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 30.0 ppb (28) 0.4 ppb (5) N/A 17.0 μg/m3 (62) 62.0
 
Sept. 15, 2021, 2 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 31.0 ppb (29) 0.4 ppb (5) N/A 16.3 μg/m3 (60) 60.0
 
Sept. 15, 2021, 1 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 34.0 ppb (32) 0.4 ppb (5) N/A 15.8 μg/m3 (59) 59.0
 
Sept. 15, 2021, midnight N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 38.0 ppb (36) 0.4 ppb (5) N/A 14.9 μg/m3 (57) 57.0
 
Sept. 14, 2021, 11 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 39.0 ppb (37) 0.5 ppb (6) N/A 14.4 μg/m3 (56) 56.0
 
Sept. 14, 2021, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 43.0 ppb (40) 0.4 ppb (5) N/A 13.7 μg/m3 (55) 55.0
 
Sept. 14, 2021, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 46.0 ppb (43) 0.4 ppb (5) N/A 13.6 μg/m3 (55) 55.0
 
Sept. 14, 2021, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 48.0 ppb (45) 0.4 ppb (5) N/A 13.6 μg/m3 (55) 55.0
 
Sept. 14, 2021, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 49.0 ppb (46) 0.4 ppb (5) N/A 13.6 μg/m3 (55) 55.0
 
Sept. 14, 2021, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 59.0 ppb (65) 0.4 ppb (5) N/A 14.6 μg/m3 (57) 65.0
 
Sept. 14, 2021, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 52.0 ppb (49) 0.5 ppb (6) N/A 14.7 μg/m3 (57) 57.0
 
Sept. 14, 2021, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A 2.0 ppb (3) 46.0 ppb (43) 0.4 ppb (5) N/A 13.2 μg/m3 (54) 54.0
 
Sept. 14, 2021, 3 p.m. N/A N/A N/A 5.0 ppb (5) N/A 3.0 ppb (5) 36.0 ppb (34) 0.4 ppb (5) N/A 13.3 μg/m3 (54) 54.0
 
Sept. 14, 2021, 2 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 26.0 ppb (25) 0.5 ppb (6) N/A 13.3 μg/m3 (54) 54.0
 
Sept. 14, 2021, 1 p.m. N/A N/A N/A 8.0 ppb (8) N/A 1.0 ppb (2) 13.0 ppb (13) 0.5 ppb (6) N/A 13.1 μg/m3 (54) 54.0
 
Sept. 14, 2021, noon N/A N/A N/A 9.0 ppb (9) N/A 1.0 ppb (2) 6.0 ppb (6) 0.5 ppb (6) N/A 13.2 μg/m3 (54) 54.0
 
Sept. 14, 2021, 11 a.m. N/A N/A N/A 11.0 ppb (11) N/A 1.0 ppb (2) 2.0 ppb (2) 0.5 ppb (6) N/A 13.7 μg/m3 (55) 55.0
 
Sept. 14, 2021, 10 a.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 4.0 ppb (4) 0.4 ppb (5) N/A 13.4 μg/m3 (54) 54.0
 
Sept. 14, 2021, 9 a.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 5.0 ppb (5) 0.4 ppb (5) N/A 13.4 μg/m3 (54) 54.0
 
Sept. 14, 2021, 8 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 6.0 ppb (6) 0.4 ppb (5) N/A 13.3 μg/m3 (54) 54.0
 
Sept. 14, 2021, 7 a.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 13.0 ppb (13) 0.4 ppb (5) N/A 13.3 μg/m3 (54) 54.0
 
Sept. 14, 2021, 6 a.m. N/A N/A N/A 10.0 ppb (10) N/A 1.0 ppb (2) 12.0 ppb (12) 0.4 ppb (5) N/A 13.6 μg/m3 (55) 55.0
 
Sept. 14, 2021, 5 a.m. N/A N/A N/A 16.0 ppb (16) N/A 1.0 ppb (2) 6.0 ppb (6) 0.4 ppb (5) N/A 13.1 μg/m3 (54) 54.0
 
Sept. 14, 2021, 4 a.m. N/A N/A N/A 14.0 ppb (14) N/A 1.0 ppb (2) 7.0 ppb (7) 0.4 ppb (5) N/A 12.9 μg/m3 (53) 53.0
 
Sept. 14, 2021, 3 a.m. N/A N/A N/A 15.0 ppb (15) N/A 1.0 ppb (2) 7.0 ppb (7) 0.4 ppb (5) N/A 12.5 μg/m3 (52) 52.0
 
Sept. 14, 2021, 2 a.m. N/A N/A N/A 8.0 ppb (8) N/A 1.0 ppb (2) 15.0 ppb (14) 0.4 ppb (5) N/A 12.9 μg/m3 (53) 53.0
 
Sept. 14, 2021, 1 a.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 23.0 ppb (22) 0.4 ppb (5) N/A 13.0 μg/m3 (53) 53.0
 
Sept. 14, 2021, midnight N/A N/A N/A 8.0 ppb (8) N/A 1.0 ppb (2) 31.0 ppb (29) 0.4 ppb (5) N/A 13.1 μg/m3 (54) 54.0
 
Sept. 13, 2021, 11 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 35.0 ppb (33) 0.4 ppb (5) N/A 12.2 μg/m3 (52) 52.0
 
Sept. 13, 2021, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 40.0 ppb (38) 0.4 ppb (5) N/A 12.2 μg/m3 (52) 52.0
 
Sept. 13, 2021, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 44.0 ppb (41) 0.4 ppb (5) N/A 11.8 μg/m3 (50) 50.0
 
Sept. 13, 2021, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 46.0 ppb (43) 0.4 ppb (5) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 13, 2021, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 45.0 ppb (42) 0.4 ppb (5) N/A 11.7 μg/m3 (49) 49.0
 
Sept. 13, 2021, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 43.0 ppb (40) 0.4 ppb (5) N/A 11.7 μg/m3 (49) 49.0
 
Sept. 13, 2021, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 43.0 ppb (40) 0.4 ppb (5) N/A 11.4 μg/m3 (48) 48.0
 
Sept. 13, 2021, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 42.0 ppb (39) 0.4 ppb (5) N/A 10.9 μg/m3 (46) 46.0
 
Sept. 13, 2021, 3 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 39.0 ppb (37) 0.4 ppb (5) N/A 10.7 μg/m3 (45) 45.0
 
Sept. 13, 2021, 2 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 36.0 ppb (34) 0.4 ppb (5) N/A 11.1 μg/m3 (47) 47.0
 
Sept. 13, 2021, 1 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 29.0 ppb (27) 0.4 ppb (5) N/A 11.1 μg/m3 (47) 47.0
 
Sept. 13, 2021, noon N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 26.0 ppb (25) 0.4 ppb (5) N/A 11.3 μg/m3 (48) 48.0
 
Sept. 13, 2021, 11 a.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 27.0 ppb (25) 0.4 ppb (5) N/A 11.0 μg/m3 (46) 46.0
 
Sept. 13, 2021, 10 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 32.0 ppb (30) 0.3 ppb (4) N/A 10.5 μg/m3 (44) 44.0
 
Sept. 13, 2021, 9 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) N/A 0.3 ppb (4) N/A 10.4 μg/m3 (44) 44.0
 
Sept. 13, 2021, 8 a.m. N/A N/A N/A 3.0 ppb (3) N/A N/A 31.0 ppb (29) 0.3 ppb (4) N/A 10.3 μg/m3 (43) 43.0
 
Sept. 13, 2021, 7 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 32.0 ppb (30) N/A N/A 10.2 μg/m3 (43) 43.0
 
Sept. 13, 2021, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 33.0 ppb (31) 0.4 ppb (5) N/A 10.2 μg/m3 (43) 43.0
 
Sept. 13, 2021, 5 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 29.0 ppb (27) 0.4 ppb (5) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 13, 2021, 4 a.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 20.0 ppb (19) 0.4 ppb (5) N/A 10.2 μg/m3 (43) 43.0
 
Sept. 13, 2021, 3 a.m. N/A N/A N/A 8.0 ppb (8) N/A 1.0 ppb (2) 23.0 ppb (22) 0.4 ppb (5) N/A 10.4 μg/m3 (44) 44.0
 
Sept. 13, 2021, 2 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 20.0 ppb (19) 0.4 ppb (5) N/A 9.8 μg/m3 (41) 41.0
 
Sept. 13, 2021, 1 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 21.0 ppb (20) 0.4 ppb (5) N/A 9.6 μg/m3 (40) 40.0
 
Sept. 13, 2021, midnight N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 26.0 ppb (25) 0.4 ppb (5) N/A 9.6 μg/m3 (40) 40.0
 
Sept. 12, 2021, 11 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 33.0 ppb (31) 0.4 ppb (5) N/A 9.4 μg/m3 (40) 40.0
 
Sept. 12, 2021, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 45.0 ppb (42) 0.4 ppb (5) N/A 9.5 μg/m3 (40) 42.0
 
Sept. 12, 2021, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 47.0 ppb (44) 0.4 ppb (5) N/A 9.5 μg/m3 (40) 44.0
 
Sept. 12, 2021, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 48.0 ppb (45) 0.4 ppb (5) N/A 9.0 μg/m3 (38) 45.0
 
Sept. 12, 2021, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 48.0 ppb (45) 0.4 ppb (5) N/A 9.2 μg/m3 (39) 45.0
 
Sept. 12, 2021, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 48.0 ppb (45) 0.4 ppb (5) N/A 8.7 μg/m3 (37) 45.0
 
Sept. 12, 2021, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 47.0 ppb (44) 0.4 ppb (5) N/A 8.7 μg/m3 (37) 44.0
 
Sept. 12, 2021, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 45.0 ppb (42) 0.4 ppb (5) N/A 8.2 μg/m3 (35) 42.0
 
Sept. 12, 2021, 3 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 42.0 ppb (39) 0.4 ppb (5) N/A 8.0 μg/m3 (34) 39.0
 
Sept. 12, 2021, 2 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 37.0 ppb (35) 0.4 ppb (5) N/A 7.5 μg/m3 (32) 35.0
 
Sept. 12, 2021, 1 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 27.0 ppb (25) 0.4 ppb (5) N/A 7.2 μg/m3 (31) 31.0
 
Sept. 12, 2021, noon N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 23.0 ppb (22) 0.4 ppb (5) N/A 6.8 μg/m3 (29) 29.0
 
Sept. 12, 2021, 11 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 24.0 ppb (23) 0.4 ppb (5) N/A 6.7 μg/m3 (28) 28.0
 
Sept. 12, 2021, 10 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 24.0 ppb (23) 0.4 ppb (5) N/A 6.4 μg/m3 (27) 27.0
 
Sept. 12, 2021, 9 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 28.0 ppb (26) 0.4 ppb (5) N/A 6.7 μg/m3 (28) 28.0
 
Sept. 12, 2021, 8 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 27.0 ppb (25) 0.4 ppb (5) N/A 6.7 μg/m3 (28) 28.0
 
Sept. 12, 2021, 7 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 26.0 ppb (25) 0.4 ppb (5) N/A 6.8 μg/m3 (29) 29.0
 
Sept. 12, 2021, 6 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 27.0 ppb (25) 0.4 ppb (5) N/A 7.0 μg/m3 (30) 30.0
 
Sept. 12, 2021, 5 a.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 17.0 ppb (16) 0.4 ppb (5) N/A 7.5 μg/m3 (32) 32.0
 
Sept. 12, 2021, 4 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 17.0 ppb (16) 0.4 ppb (5) N/A 7.9 μg/m3 (33) 33.0
 
Sept. 12, 2021, 3 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 18.0 ppb (17) 0.4 ppb (5) N/A 7.8 μg/m3 (33) 33.0
 
Sept. 12, 2021, 2 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 21.0 ppb (20) 0.4 ppb (5) N/A 7.5 μg/m3 (32) 32.0
 
Sept. 12, 2021, 1 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 25.0 ppb (24) 0.4 ppb (5) N/A 7.8 μg/m3 (33) 33.0
 
Sept. 12, 2021, midnight N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 28.0 ppb (26) 0.4 ppb (5) N/A 6.9 μg/m3 (29) 29.0
 
Sept. 11, 2021, 11 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 32.0 ppb (30) 0.3 ppb (4) N/A 5.6 μg/m3 (24) 30.0
 
Sept. 11, 2021, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 40.0 ppb (38) 0.3 ppb (4) N/A 5.4 μg/m3 (23) 38.0
 
Sept. 11, 2021, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 43.0 ppb (40) 0.3 ppb (4) N/A 5.2 μg/m3 (22) 40.0
 
Sept. 11, 2021, 8 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 41.0 ppb (38) 0.3 ppb (4) N/A 4.7 μg/m3 (20) 38.0
 
Sept. 11, 2021, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 42.0 ppb (39) 0.3 ppb (4) N/A 4.7 μg/m3 (20) 39.0
 
Sept. 11, 2021, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 43.0 ppb (40) 0.3 ppb (4) N/A 4.8 μg/m3 (20) 40.0
 
Sept. 11, 2021, 5 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 45.0 ppb (42) 0.3 ppb (4) N/A 5.3 μg/m3 (23) 42.0
 
Sept. 11, 2021, 4 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 40.0 ppb (38) 0.3 ppb (4) N/A 5.0 μg/m3 (21) 38.0
 
Sept. 11, 2021, 3 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 32.0 ppb (30) 0.4 ppb (5) N/A 4.4 μg/m3 (19) 30.0
 
Sept. 11, 2021, 2 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 20.0 ppb (19) 0.4 ppb (5) N/A 4.9 μg/m3 (21) 21.0
 
Sept. 11, 2021, 1 p.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 13.0 ppb (13) 0.4 ppb (5) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 11, 2021, noon N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 7.0 ppb (7) 0.4 ppb (5) N/A 5.3 μg/m3 (23) 23.0
 
Sept. 11, 2021, 11 a.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 4.0 ppb (4) 0.4 ppb (5) N/A 5.0 μg/m3 (21) 21.0
 
Sept. 11, 2021, 10 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 7.0 ppb (7) 0.4 ppb (5) N/A 4.8 μg/m3 (20) 20.0
 
Sept. 11, 2021, 9 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 5.0 ppb (5) 0.4 ppb (5) N/A 4.7 μg/m3 (20) 20.0
 
Sept. 11, 2021, 8 a.m. N/A N/A N/A 10.0 ppb (10) N/A 1.0 ppb (2) 3.0 ppb (3) 0.4 ppb (5) N/A 5.1 μg/m3 (22) 22.0
 
Sept. 11, 2021, 7 a.m. N/A N/A N/A 11.0 ppb (11) N/A 1.0 ppb (2) 5.0 ppb (5) 0.4 ppb (5) N/A 5.1 μg/m3 (22) 22.0
 
Sept. 11, 2021, 6 a.m. N/A N/A N/A 13.0 ppb (13) N/A 1.0 ppb (2) 7.0 ppb (7) 0.4 ppb (5) N/A 5.5 μg/m3 (23) 23.0
 
Sept. 11, 2021, 5 a.m. N/A N/A N/A 14.0 ppb (14) N/A 1.0 ppb (2) 8.0 ppb (8) 0.4 ppb (5) N/A 5.6 μg/m3 (24) 24.0
 
Sept. 11, 2021, 4 a.m. N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 14.0 ppb (13) 0.3 ppb (4) N/A 4.7 μg/m3 (20) 20.0
 
Sept. 11, 2021, 3 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 22.0 ppb (21) 0.3 ppb (4) N/A 4.2 μg/m3 (18) 21.0
 
Sept. 11, 2021, 2 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 23.0 ppb (22) 0.3 ppb (4) N/A 4.9 μg/m3 (21) 22.0
 
Sept. 11, 2021, 1 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 28.0 ppb (26) 0.3 ppb (4) N/A 5.3 μg/m3 (23) 26.0
 
Sept. 11, 2021, midnight N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 35.0 ppb (33) 0.2 ppb (3) N/A 3.9 μg/m3 (17) 33.0
 
Sept. 10, 2021, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 36.0 ppb (34) 0.2 ppb (3) N/A 3.6 μg/m3 (16) 34.0
 
Sept. 10, 2021, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 38.0 ppb (36) 0.2 ppb (3) N/A 3.9 μg/m3 (17) 36.0
 
Sept. 10, 2021, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 39.0 ppb (37) 0.2 ppb (3) N/A 3.6 μg/m3 (16) 37.0
 
Sept. 10, 2021, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 40.0 ppb (38) 0.2 ppb (3) N/A 3.3 μg/m3 (14) 38.0
 
Sept. 10, 2021, 7 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 39.0 ppb (37) 0.2 ppb (3) N/A 3.4 μg/m3 (15) 37.0
 
Sept. 10, 2021, 6 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 38.0 ppb (36) 0.2 ppb (3) N/A 3.4 μg/m3 (15) 36.0
 
Sept. 10, 2021, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 38.0 ppb (36) 0.2 ppb (3) N/A 3.3 μg/m3 (14) 36.0
 
Sept. 10, 2021, 4 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 37.0 ppb (35) 0.2 ppb (3) N/A 3.2 μg/m3 (14) 35.0
 
Sept. 10, 2021, 3 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 36.0 ppb (34) 0.2 ppb (3) N/A 3.3 μg/m3 (14) 34.0
 
Sept. 10, 2021, 2 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 33.0 ppb (31) 0.3 ppb (4) N/A 3.4 μg/m3 (15) 31.0
 
Sept. 10, 2021, 1 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 31.0 ppb (29) 0.3 ppb (4) N/A 3.4 μg/m3 (15) 29.0
 
Sept. 10, 2021, noon N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 30.0 ppb (28) 0.3 ppb (4) N/A 3.7 μg/m3 (16) 28.0
 
Sept. 10, 2021, 11 a.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 24.0 ppb (23) 0.3 ppb (4) N/A 3.9 μg/m3 (17) 23.0
 
Sept. 10, 2021, 10 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 25.0 ppb (24) 0.3 ppb (4) N/A 3.9 μg/m3 (17) 24.0
 
Sept. 10, 2021, 9 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) N/A 0.2 ppb (3) N/A 4.0 μg/m3 (17) 17.0
 
Sept. 10, 2021, 8 a.m. N/A N/A N/A 5.0 ppb (5) N/A N/A 25.0 ppb (24) 0.3 ppb (4) N/A 4.4 μg/m3 (19) 24.0
 
Sept. 10, 2021, 7 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 29.0 ppb (27) N/A N/A 4.4 μg/m3 (19) 27.0
 
Sept. 10, 2021, 6 a.m. N/A N/A N/A N/A N/A 1.0 ppb (2) 29.0 ppb (27) 0.3 ppb (4) N/A 4.3 μg/m3 (18) 27.0
 
Sept. 10, 2021, 5 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 30.0 ppb (28) 0.2 ppb (3) N/A 4.4 μg/m3 (19) 28.0
 
Sept. 10, 2021, 4 a.m. N/A N/A N/A 5.0 ppb (5) N/A 1.0 ppb (2) 29.0 ppb (27) 0.2 ppb (3) N/A 4.1 μg/m3 (18) 27.0
 
Sept. 10, 2021, 3 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 35.0 ppb (33) 0.2 ppb (3) N/A 4.4 μg/m3 (19) 33.0
 
Sept. 10, 2021, 2 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 36.0 ppb (34) 0.2 ppb (3) N/A 4.9 μg/m3 (21) 34.0
 
Sept. 10, 2021, 1 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 39.0 ppb (37) 0.2 ppb (3) N/A 5.9 μg/m3 (25) 37.0
 
Sept. 10, 2021, midnight N/A N/A N/A 7.0 ppb (7) N/A 1.0 ppb (2) 33.0 ppb (31) 0.2 ppb (3) N/A 6.1 μg/m3 (26) 31.0
 
Sept. 9, 2021, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 38.0 ppb (36) 0.2 ppb (3) N/A 4.8 μg/m3 (20) 36.0
 
Sept. 9, 2021, 10 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 42.0 ppb (39) 0.2 ppb (3) N/A 4.6 μg/m3 (20) 39.0
 
Sept. 9, 2021, 9 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 42.0 ppb (39) 0.2 ppb (3) N/A 4.3 μg/m3 (18) 39.0
 
Sept. 9, 2021, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 42.0 ppb (39) 0.2 ppb (3) N/A 4.2 μg/m3 (18) 39.0
 
Sept. 9, 2021, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 41.0 ppb (38) 0.2 ppb (3) N/A 7.5 μg/m3 (32) 38.0
 
Sept. 9, 2021, 6 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 40.0 ppb (38) 0.3 ppb (4) N/A 8.7 μg/m3 (37) 38.0
 
Sept. 9, 2021, 5 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 36.0 ppb (34) 0.3 ppb (4) N/A 8.9 μg/m3 (38) 38.0
 
Sept. 9, 2021, 4 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 36.0 ppb (34) 0.2 ppb (3) N/A 7.6 μg/m3 (32) 34.0
 
Sept. 9, 2021, 3 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 35.0 ppb (33) 0.3 ppb (4) N/A 7.8 μg/m3 (33) 33.0
 
Sept. 9, 2021, 2 p.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) 31.0 ppb (29) 0.3 ppb (4) N/A 8.3 μg/m3 (35) 35.0
 
Sept. 9, 2021, 1 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 34.0 ppb (32) 0.2 ppb (3) N/A 8.4 μg/m3 (36) 36.0
 
Sept. 9, 2021, noon N/A N/A N/A N/A N/A N/A 36.0 ppb (34) 0.2 ppb (3) N/A 7.9 μg/m3 (33) 34.0
 
Sept. 9, 2021, 11 a.m. N/A N/A N/A 4.0 ppb (4) N/A 1.0 ppb (2) N/A N/A N/A 7.8 μg/m3 (33) 33.0
 
Sept. 9, 2021, 10 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 44.0 ppb (41) 0.4 ppb (5) N/A 7.0 μg/m3 (30) 41.0
 
Sept. 9, 2021, 9 a.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 48.0 ppb (45) 0.4 ppb (5) N/A 6.4 μg/m3 (27) 45.0
 
Sept. 9, 2021, 8 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 37.0 ppb (35) 0.4 ppb (5) N/A 5.8 μg/m3 (25) 35.0
 
Sept. 9, 2021, 7 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 35.0 ppb (33) 0.4 ppb (5) N/A 8.5 μg/m3 (36) 36.0
 
Sept. 9, 2021, 6 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 34.0 ppb (32) 0.4 ppb (5) N/A 9.8 μg/m3 (41) 41.0
 
Sept. 9, 2021, 5 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 31.0 ppb (29) 0.4 ppb (5) N/A 9.5 μg/m3 (40) 40.0
 
Sept. 9, 2021, 4 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 35.0 ppb (33) 0.4 ppb (5) N/A 9.3 μg/m3 (39) 39.0
 
Sept. 9, 2021, 3 a.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 37.0 ppb (35) 0.5 ppb (6) N/A 9.9 μg/m3 (42) 42.0
 
Sept. 9, 2021, 2 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 36.0 ppb (34) 0.5 ppb (6) N/A 10.1 μg/m3 (43) 43.0
 
Sept. 9, 2021, 1 a.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 37.0 ppb (35) 0.5 ppb (6) N/A 10.7 μg/m3 (45) 45.0
 
Sept. 9, 2021, midnight N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 38.0 ppb (36) 0.5 ppb (6) N/A 11.1 μg/m3 (47) 47.0
 
Sept. 8, 2021, 11 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 38.0 ppb (36) 0.5 ppb (6) N/A 10.7 μg/m3 (45) 45.0
 
Sept. 8, 2021, 10 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 34.0 ppb (32) 0.5 ppb (6) N/A 8.6 μg/m3 (36) 36.0
 
Sept. 8, 2021, 9 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 34.0 ppb (32) 0.5 ppb (6) N/A 8.5 μg/m3 (36) 36.0
 
Sept. 8, 2021, 8 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 36.0 ppb (34) 0.5 ppb (6) N/A 8.3 μg/m3 (35) 35.0
 
Sept. 8, 2021, 7 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 36.0 ppb (34) 0.5 ppb (6) N/A 9.8 μg/m3 (41) 41.0
 
Sept. 8, 2021, 6 p.m. N/A N/A N/A 3.0 ppb (3) N/A 1.0 ppb (2) 39.0 ppb (37) 0.5 ppb (6) N/A 10.5 μg/m3 (44) 44.0
 
Sept. 8, 2021, 5 p.m. N/A N/A N/A 1.0 ppb (1) N/A 1.0 ppb (2) 41.0 ppb (38) 0.5 ppb (6) N/A 10.8 μg/m3 (46) 46.0
 
Sept. 8, 2021, 4 p.m. N/A N/A N/A 2.0 ppb (2) N/A 1.0 ppb (2) 37.0 ppb (35) 0.5 ppb (6) N/A 10.6 μg/m3 (45) 45.0
 
Sept. 8, 2021, 3 p.m. N/A N/A N/A 6.0 ppb (6) N/A 1.0 ppb (2) 40.0 ppb (38) 0.5 ppb (6) N/A 12.0 μg/m3 (50) 50.0
 
Sept. 8, 2021, 2 p.m. N/A N/A N/A 8.0 ppb (8) N/A 1.0 ppb (2) 30.0 ppb (28) 0.5 ppb (6) N/A 11.9 μg/m3 (50) 50.0
 
Sept. 8, 2021, 1 p.m. N/A N/A N/A 12.0 ppb (12) N/A 1.0 ppb (2) 14.0 ppb (13) 0.6 ppb (7) N/A 11.7 μg/m3 (49) 49.0
 
Sept. 8, 2021, noon N/A N/A N/A 10.0 ppb (10) N/A 1.0 ppb (2) 3.0 ppb (3) 0.7 ppb (8) N/A 10.0 μg/m3 (42) 42.0
 
Sept. 8, 2021, 11 a.m. N/A N/A N/A 12.0 ppb (12) N/A 1.0 ppb (2) 2.0 ppb (2) 0.6 ppb (7) N/A 10.4 μg/m3 (44) 44.0