ID: 1002

AQSQID: 450250001

Site Name: Chesterfield

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

Updated: March 2, 2021, 7:32 p.m.

Location: Jefferson (S Carolina Hwy 145), SC

Reporting: True, Located: True

Current AQI: 35.0

Jefferson (S Carolina Hwy 145) SC, US: 34.615299, -80.198898

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 2, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 4.8 μg/m3 (20) 36.0
 
March 2, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 4.5 μg/m3 (19) 35.0
 
March 2, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 4.6 μg/m3 (20) 35.0
 
March 2, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 4.8 μg/m3 (20) 32.0
 
March 2, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 4.9 μg/m3 (21) 32.0
 
March 2, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 4.7 μg/m3 (20) 30.0
 
March 2, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 4.8 μg/m3 (20) 27.0
 
March 2, 2021, noon N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 4.9 μg/m3 (21) 29.0
 
March 2, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 4.4 μg/m3 (19) 29.0
 
March 2, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 4.2 μg/m3 (18) 29.0
 
March 2, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 4.2 μg/m3 (18) 31.0
 
March 2, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 4.0 μg/m3 (17) 33.0
 
March 2, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 3.7 μg/m3 (16) 34.0
 
March 2, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 3.4 μg/m3 (15) 34.0
 
March 2, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 3.1 μg/m3 (13) 34.0
 
March 2, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 3.3 μg/m3 (14) 35.0
 
March 2, 2021, 2 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
 
March 2, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 3.4 μg/m3 (15) 28.0
 
March 2, 2021, midnight N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 3.1 μg/m3 (13) 25.0
 
March 1, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 2.9 μg/m3 (13) 24.0
 
March 1, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 2.6 μg/m3 (11) 26.0
 
March 1, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 2.2 μg/m3 (10) 26.0
 
March 1, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 2.4 μg/m3 (10) 26.0
 
March 1, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 2.3 μg/m3 (10) 26.0
 
March 1, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 1.8 μg/m3 (8) 26.0
 
March 1, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 1.5 μg/m3 (7) 25.0
 
March 1, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 1.3 μg/m3 (6) 25.0
 
March 1, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 2.4 μg/m3 (10) 28.0
 
March 1, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 10.9 μg/m3 (46) 46.0
 
March 1, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A 11.0 μg/m3 (46) 46.0
 
March 1, 2021, noon N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A 10.1 μg/m3 (43) 43.0
 
March 1, 2021, 11 a.m. 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
 
March 1, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 8.7 μg/m3 (37) 37.0
 
March 1, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 7.7 μg/m3 (33) 33.0
 
March 1, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 7.4 μg/m3 (31) 31.0
 
March 1, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 7.4 μg/m3 (31) 31.0
 
March 1, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 7.5 μg/m3 (32) 32.0
 
March 1, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A 8.0 μg/m3 (34) 34.0
 
March 1, 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
 
March 1, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 12.7 μg/m3 (53) 53.0
 
March 1, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 11.4 μg/m3 (48) 48.0
 
March 1, 2021, midnight N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 9.9 μg/m3 (42) 42.0
 
Feb. 28, 2021, 11 p.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
 
Feb. 28, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 6.3 μg/m3 (27) 33.0
 
Feb. 28, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 5.9 μg/m3 (25) 33.0
 
Feb. 28, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 6.7 μg/m3 (28) 32.0
 
Feb. 28, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 6.9 μg/m3 (29) 29.0
 
Feb. 28, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 7.6 μg/m3 (32) 32.0
 
Feb. 28, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 8.5 μg/m3 (36) 36.0
 
Feb. 28, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 9.4 μg/m3 (40) 40.0
 
Feb. 28, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 9.3 μg/m3 (39) 39.0
 
Feb. 28, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A N/A 10.0 μg/m3 (42) 42.0
 
Feb. 28, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A N/A 10.1 μg/m3 (43) 43.0
 
Feb. 28, 2021, noon N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A N/A 14.5 μg/m3 (57) 57.0
 
Feb. 28, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) N/A N/A 19.9 μg/m3 (68) 68.0
 
Feb. 28, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) N/A N/A 18.0 μg/m3 (64) 64.0
 
Feb. 28, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) N/A N/A 17.1 μg/m3 (62) 62.0
 
Feb. 28, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) N/A N/A 16.6 μg/m3 (61) 61.0
 
Feb. 28, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A N/A 16.3 μg/m3 (60) 60.0
 
Feb. 28, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A N/A 16.1 μg/m3 (60) 60.0
 
Feb. 28, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A N/A 14.7 μg/m3 (57) 57.0
 
Feb. 28, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 12.6 μg/m3 (53) 53.0
 
Feb. 28, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 12.2 μg/m3 (52) 52.0
 
Feb. 28, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 12.0 μg/m3 (50) 50.0
 
Feb. 28, 2021, midnight N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 11.2 μg/m3 (47) 47.0
 
Feb. 27, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 10.8 μg/m3 (46) 46.0
 
Feb. 27, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 9.9 μg/m3 (42) 42.0
 
Feb. 27, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 10.8 μg/m3 (46) 46.0
 
Feb. 27, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 11.2 μg/m3 (47) 47.0
 
Feb. 27, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 10.1 μg/m3 (43) 43.0
 
Feb. 27, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 9.8 μg/m3 (41) 41.0
 
Feb. 27, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 11.7 μg/m3 (49) 49.0
 
Feb. 27, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 8.4 μg/m3 (36) 36.0
 
Feb. 27, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 7.1 μg/m3 (30) 30.0
 
Feb. 27, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 6.6 μg/m3 (28) 28.0
 
Feb. 27, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 7.4 μg/m3 (31) 31.0
 
Feb. 27, 2021, noon N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 7.6 μg/m3 (32) 32.0
 
Feb. 27, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 8.1 μg/m3 (34) 34.0
 
Feb. 27, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 7.7 μg/m3 (33) 33.0
 
Feb. 27, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 7.2 μg/m3 (31) 31.0
 
Feb. 27, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 6.8 μg/m3 (29) 29.0
 
Feb. 27, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 6.6 μg/m3 (28) 28.0
 
Feb. 27, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 8.3 μg/m3 (35) 35.0
 
Feb. 27, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 9.7 μg/m3 (41) 41.0
 
Feb. 27, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 6.3 μg/m3 (27) 28.0
 
Feb. 27, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 6.0 μg/m3 (25) 27.0
 
Feb. 27, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 6.3 μg/m3 (27) 27.0
 
Feb. 27, 2021, midnight N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 6.3 μg/m3 (27) 27.0
 
Feb. 26, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 7.4 μg/m3 (31) 31.0
 
Feb. 26, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 7.7 μg/m3 (33) 33.0
 
Feb. 26, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 7.6 μg/m3 (32) 32.0
 
Feb. 26, 2021, 8 p.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
 
Feb. 26, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 7.3 μg/m3 (31) 34.0
 
Feb. 26, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 7.4 μg/m3 (31) 34.0
 
Feb. 26, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 7.0 μg/m3 (30) 35.0
 
Feb. 26, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 6.4 μg/m3 (27) 34.0
 
Feb. 26, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 6.4 μg/m3 (27) 33.0
 
Feb. 26, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 6.5 μg/m3 (28) 35.0
 
Feb. 26, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 6.8 μg/m3 (29) 34.0
 
Feb. 26, 2021, noon N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 7.2 μg/m3 (31) 35.0
 
Feb. 26, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 7.8 μg/m3 (33) 35.0
 
Feb. 26, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 8.6 μg/m3 (36) 36.0
 
Feb. 26, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 9.2 μg/m3 (39) 39.0
 
Feb. 26, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 9.4 μg/m3 (40) 40.0
 
Feb. 26, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 9.6 μg/m3 (40) 40.0
 
Feb. 26, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 10.0 μg/m3 (42) 43.0
 
Feb. 26, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 10.3 μg/m3 (43) 44.0
 
Feb. 26, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A 15.5 μg/m3 (59) 59.0
 
Feb. 26, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A N/A 23.7 μg/m3 (76) 76.0
 
Feb. 26, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A 21.9 μg/m3 (72) 72.0
 
Feb. 26, 2021, midnight N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A N/A 14.5 μg/m3 (57) 57.0
 
Feb. 25, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A 14.8 μg/m3 (57) 57.0
 
Feb. 25, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A N/A 17.0 μg/m3 (62) 62.0
 
Feb. 25, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A 15.6 μg/m3 (59) 59.0
 
Feb. 25, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A N/A 13.0 μg/m3 (53) 61.0
 
Feb. 25, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A N/A 35.4 μg/m3 (100) 100.0
 
Feb. 25, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A N/A 34.0 μg/m3 (98) 98.0
 
Feb. 25, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A 23.6 μg/m3 (76) 76.0
 
Feb. 25, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A N/A 12.0 μg/m3 (50) 50.0
 
Feb. 25, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A 14.5 μg/m3 (57) 57.0
 
Feb. 25, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 18.8 μg/m3 (66) 66.0
 
Feb. 25, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 20.8 μg/m3 (70) 70.0
 
Feb. 25, 2021, noon N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 21.2 μg/m3 (71) 71.0
 
Feb. 25, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 20.0 μg/m3 (68) 68.0
 
Feb. 25, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 19.2 μg/m3 (66) 66.0
 
Feb. 25, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 18.0 μg/m3 (64) 64.0
 
Feb. 25, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 16.1 μg/m3 (60) 60.0
 
Feb. 25, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 14.5 μg/m3 (57) 57.0
 
Feb. 25, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 12.1 μg/m3 (51) 51.0
 
Feb. 25, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 10.6 μg/m3 (45) 45.0
 
Feb. 25, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A N/A 16.8 μg/m3 (61) 61.0
 
Feb. 25, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A N/A 18.0 μg/m3 (64) 64.0
 
Feb. 25, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A 15.4 μg/m3 (58) 58.0
 
Feb. 25, 2021, midnight N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A 10.9 μg/m3 (46) 50.0
 
Feb. 24, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A 9.6 μg/m3 (40) 45.0
 
Feb. 24, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A 7.5 μg/m3 (32) 55.0
 
Feb. 24, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A N/A 4.9 μg/m3 (21) 58.0
 
Feb. 24, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A N/A 3.9 μg/m3 (17) 51.0
 
Feb. 24, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A N/A 3.6 μg/m3 (16) 49.0
 
Feb. 24, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A 3.3 μg/m3 (14) 46.0
 
Feb. 24, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 3.6 μg/m3 (16) 43.0
 
Feb. 24, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 4.0 μg/m3 (17) 41.0
 
Feb. 24, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 4.0 μg/m3 (17) 38.0
 
Feb. 24, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 4.6 μg/m3 (20) 31.0
 
Feb. 24, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 4.7 μg/m3 (20) 20.0
 
Feb. 24, 2021, noon N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 5.0 μg/m3 (21) 25.0
 
Feb. 24, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 4.7 μg/m3 (20) 21.0
 
Feb. 24, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 4.6 μg/m3 (20) 27.0
 
Feb. 24, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 5.0 μg/m3 (21) 29.0
 
Feb. 24, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 5.2 μg/m3 (22) 29.0
 
Feb. 24, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 5.1 μg/m3 (22) 29.0
 
Feb. 24, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 4.9 μg/m3 (21) 32.0
 
Feb. 24, 2021, 5 a.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
 
Feb. 24, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 3.6 μg/m3 (16) 37.0
 
Feb. 24, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 2.7 μg/m3 (12) 38.0
 
Feb. 24, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 2.5 μg/m3 (11) 38.0
 
Feb. 24, 2021, midnight N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 2.4 μg/m3 (10) 39.0
 
Feb. 23, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 2.3 μg/m3 (10) 39.0
 
Feb. 23, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 2.3 μg/m3 (10) 41.0
 
Feb. 23, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 2.3 μg/m3 (10) 42.0
 
Feb. 23, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 2.1 μg/m3 (9) 42.0
 
Feb. 23, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 2.5 μg/m3 (11) 41.0
 
Feb. 23, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 3.1 μg/m3 (13) 39.0
 
Feb. 23, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 3.3 μg/m3 (14) 38.0
 
Feb. 23, 2021, 4 p.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
 
Feb. 23, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 3.9 μg/m3 (17) 32.0
 
Feb. 23, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 5.1 μg/m3 (22) 27.0
 
Feb. 23, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 5.8 μg/m3 (25) 25.0