ID: 1459

AQSQID: 370670030

Site Name: Clemmons Middle

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

Updated: April 22, 2021, 10:44 a.m.

Location: Winston Salem (Hope Church Rd), NC

Reporting: True, Located: True

Current AQI: 25.0

Winston Salem (Hope Church Rd) NC, US: 36.0261, -80.3419

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
April 22, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 5.8 μg/m3 (25) 25.0
 
April 22, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 5.3 μg/m3 (23) 25.0
 
April 22, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 5.1 μg/m3 (22) 31.0
 
April 22, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 4.7 μg/m3 (20) 32.0
 
April 22, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 4.8 μg/m3 (20) 38.0
 
April 22, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 4.4 μg/m3 (19) 38.0
 
April 22, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 4.1 μg/m3 (18) 38.0
 
April 22, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 3.5 μg/m3 (15) 39.0
 
April 22, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 3.4 μg/m3 (15) 38.0
 
April 22, 2021, midnight N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 3.3 μg/m3 (14) 39.0
 
April 21, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 3.3 μg/m3 (14) 40.0
 
April 21, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 2.9 μg/m3 (13) 41.0
 
April 21, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 2.6 μg/m3 (11) 41.0
 
April 21, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 3.2 μg/m3 (14) 40.0
 
April 21, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 3.2 μg/m3 (14) 39.0
 
April 21, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 3.2 μg/m3 (14) 38.0
 
April 21, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 4.5 μg/m3 (19) 36.0
 
April 21, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 8.1 μg/m3 (34) 40.0
 
April 21, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 13.8 μg/m3 (55) 55.0
 
April 21, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A N/A 40.0
 
April 21, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A N/A 34.0
 
April 21, 2021, noon N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 12.1 μg/m3 (51) 51.0
 
April 21, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 13.2 μg/m3 (54) 54.0
 
April 21, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 14.1 μg/m3 (56) 56.0
 
April 21, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 14.9 μg/m3 (57) 57.0
 
April 21, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 13.3 μg/m3 (54) 54.0
 
April 21, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 12.8 μg/m3 (53) 53.0
 
April 21, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 12.8 μg/m3 (53) 53.0
 
April 21, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 14.4 μg/m3 (56) 56.0
 
April 21, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 14.4 μg/m3 (56) 56.0
 
April 21, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 11.5 μg/m3 (48) 48.0
 
April 21, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 11.0 μg/m3 (46) 46.0
 
April 21, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 10.9 μg/m3 (46) 46.0
 
April 21, 2021, midnight N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A N/A 11.3 μg/m3 (48) 48.0
 
April 20, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A 11.4 μg/m3 (48) 50.0
 
April 20, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A N/A 9.2 μg/m3 (39) 51.0
 
April 20, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A 9.2 μg/m3 (39) 55.0
 
April 20, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A N/A 9.2 μg/m3 (39) 58.0
 
April 20, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A N/A 9.5 μg/m3 (40) 58.0
 
April 20, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A N/A 8.5 μg/m3 (36) 51.0
 
April 20, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A 9.0 μg/m3 (38) 50.0
 
April 20, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A N/A 7.2 μg/m3 (31) 48.0
 
April 20, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 7.3 μg/m3 (31) 42.0
 
April 20, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 7.6 μg/m3 (32) 33.0
 
April 20, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 8.5 μg/m3 (36) 36.0
 
April 20, 2021, noon N/A N/A N/A N/A N/A N/A N/A N/A N/A 11.4 μg/m3 (48) 48.0
 
April 20, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.5 μg/m3 (44) 44.0
 
April 20, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 11.0 μg/m3 (46) 46.0
 
April 20, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 10.9 μg/m3 (46) 46.0
 
April 20, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 3.0 ppb (3) N/A N/A 10.4 μg/m3 (44) 44.0
 
April 20, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) N/A N/A 11.2 μg/m3 (47) 47.0
 
April 20, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A N/A 11.9 μg/m3 (50) 50.0
 
April 20, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A N/A 11.1 μg/m3 (47) 47.0
 
April 20, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A 9.1 μg/m3 (38) 38.0
 
April 20, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 8.2 μg/m3 (35) 35.0
 
April 20, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 7.9 μg/m3 (33) 33.0
 
April 20, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 7.5 μg/m3 (32) 32.0
 
April 20, 2021, midnight N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 7.8 μg/m3 (33) 34.0
 
April 19, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 6.4 μg/m3 (27) 42.0
 
April 19, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A 6.4 μg/m3 (27) 45.0
 
April 19, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A 5.7 μg/m3 (24) 45.0
 
April 19, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A 5.9 μg/m3 (25) 46.0
 
April 19, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A 6.1 μg/m3 (26) 45.0
 
April 19, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 6.0 μg/m3 (25) 44.0
 
April 19, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 5.9 μg/m3 (25) 44.0
 
April 19, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 5.6 μg/m3 (24) 39.0
 
April 19, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 5.4 μg/m3 (23) 37.0
 
April 19, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 6.8 μg/m3 (29) 38.0
 
April 19, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 4.7 μg/m3 (20) 38.0
 
April 19, 2021, noon N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 4.9 μg/m3 (21) 34.0
 
April 19, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 5.0 μg/m3 (21) 34.0
 
April 19, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 5.1 μg/m3 (22) 34.0
 
April 19, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 5.3 μg/m3 (23) 34.0
 
April 19, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 7.0 μg/m3 (30) 30.0
 
April 19, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A N/A 10.5 μg/m3 (44) 44.0
 
April 19, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 10.8 μg/m3 (46) 46.0
 
April 19, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 11.1 μg/m3 (47) 47.0
 
April 19, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A 10.0 μg/m3 (42) 42.0
 
April 19, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 9.8 μg/m3 (41) 41.0
 
April 19, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 10.2 μg/m3 (43) 43.0
 
April 19, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 6.9 μg/m3 (29) 34.0
 
April 19, 2021, midnight N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 7.0 μg/m3 (30) 38.0
 
April 18, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 5.8 μg/m3 (25) 43.0
 
April 18, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A 5.4 μg/m3 (23) 45.0
 
April 18, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A 5.6 μg/m3 (24) 45.0
 
April 18, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 6.1 μg/m3 (26) 44.0
 
April 18, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 5.6 μg/m3 (24) 44.0
 
April 18, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 5.3 μg/m3 (23) 43.0
 
April 18, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 5.1 μg/m3 (22) 43.0
 
April 18, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 5.2 μg/m3 (22) 42.0
 
April 18, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 4.9 μg/m3 (21) 42.0
 
April 18, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 5.1 μg/m3 (22) 41.0
 
April 18, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 5.1 μg/m3 (22) 32.0
 
April 18, 2021, noon N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 6.5 μg/m3 (28) 28.0
 
April 18, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 6.6 μg/m3 (28) 28.0
 
April 18, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 7.1 μg/m3 (30) 30.0
 
April 18, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 6.8 μg/m3 (29) 29.0
 
April 18, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 7.0 μg/m3 (30) 30.0
 
April 18, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 6.5 μg/m3 (28) 28.0
 
April 18, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 6.4 μg/m3 (27) 32.0
 
April 18, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 6.9 μg/m3 (29) 30.0
 
April 18, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 6.9 μg/m3 (29) 31.0
 
April 18, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 7.3 μg/m3 (31) 32.0
 
April 18, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 11.8 μg/m3 (50) 50.0
 
April 18, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 9.5 μg/m3 (40) 40.0
 
April 18, 2021, midnight N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 7.8 μg/m3 (33) 34.0
 
April 17, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 6.6 μg/m3 (28) 40.0
 
April 17, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 6.8 μg/m3 (29) 44.0
 
April 17, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 6.9 μg/m3 (29) 44.0
 
April 17, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 5.4 μg/m3 (23) 42.0
 
April 17, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 5.3 μg/m3 (23) 43.0
 
April 17, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 5.8 μg/m3 (25) 42.0
 
April 17, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 5.6 μg/m3 (24) 43.0
 
April 17, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 5.9 μg/m3 (25) 43.0
 
April 17, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 5.2 μg/m3 (22) 40.0
 
April 17, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 5.3 μg/m3 (23) 35.0
 
April 17, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 6.9 μg/m3 (29) 29.0
 
April 17, 2021, noon N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A N/A 8.4 μg/m3 (36) 36.0
 
April 17, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) N/A N/A 8.5 μg/m3 (36) 36.0
 
April 17, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) N/A N/A 8.6 μg/m3 (36) 36.0
 
April 17, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A N/A 8.8 μg/m3 (37) 37.0
 
April 17, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A N/A 8.5 μg/m3 (36) 36.0
 
April 17, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A N/A 8.3 μg/m3 (35) 35.0
 
April 17, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A N/A 8.8 μg/m3 (37) 37.0
 
April 17, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A N/A 8.8 μg/m3 (37) 37.0
 
April 17, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A N/A 7.6 μg/m3 (32) 32.0
 
April 17, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A N/A 6.2 μg/m3 (26) 26.0
 
April 17, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 6.3 μg/m3 (27) 27.0
 
April 17, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 5.3 μg/m3 (23) 24.0
 
April 17, 2021, midnight N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 5.4 μg/m3 (23) 31.0
 
April 16, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 3.9 μg/m3 (17) 39.0
 
April 16, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 3.9 μg/m3 (17) 42.0
 
April 16, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 3.8 μg/m3 (16) 43.0
 
April 16, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 3.9 μg/m3 (17) 42.0
 
April 16, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 4.3 μg/m3 (18) 41.0
 
April 16, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 5.2 μg/m3 (22) 41.0
 
April 16, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 4.8 μg/m3 (20) 40.0
 
April 16, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 4.7 μg/m3 (20) 38.0
 
April 16, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 5.1 μg/m3 (22) 36.0
 
April 16, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 5.9 μg/m3 (25) 32.0
 
April 16, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 5.9 μg/m3 (25) 29.0
 
April 16, 2021, noon N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 5.1 μg/m3 (22) 22.0
 
April 16, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A N/A 5.1 μg/m3 (22) 22.0
 
April 16, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A N/A 4.6 μg/m3 (20) 20.0
 
April 16, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 4.1 μg/m3 (18) 21.0
 
April 16, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 3.8 μg/m3 (16) 25.0
 
April 16, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 3.7 μg/m3 (16) 28.0
 
April 16, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 3.6 μg/m3 (16) 32.0
 
April 16, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 3.8 μg/m3 (16) 32.0
 
April 16, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 4.0 μg/m3 (17) 31.0
 
April 16, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 3.5 μg/m3 (15) 34.0
 
April 16, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 3.4 μg/m3 (15) 36.0
 
April 16, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 3.5 μg/m3 (15) 37.0
 
April 16, 2021, midnight N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 3.5 μg/m3 (15) 38.0
 
April 15, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 3.6 μg/m3 (16) 41.0
 
April 15, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A 4.1 μg/m3 (18) 45.0
 
April 15, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 4.6 μg/m3 (20) 42.0
 
April 15, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 4.8 μg/m3 (20) 43.0
 
April 15, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 4.9 μg/m3 (21) 42.0
 
April 15, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 5.0 μg/m3 (21) 40.0
 
April 15, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 4.9 μg/m3 (21) 39.0
 
April 15, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 4.9 μg/m3 (21) 40.0
 
April 15, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 5.3 μg/m3 (23) 40.0
 
April 15, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 5.2 μg/m3 (22) 38.0
 
April 15, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 5.2 μg/m3 (22) 36.0
 
April 15, 2021, noon N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A 9.3 μg/m3 (39) 39.0
 
April 15, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) N/A N/A 11.4 μg/m3 (48) 48.0
 
April 15, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A N/A 11.2 μg/m3 (47) 47.0