AQSQID: 450250001

Site Name: Chesterfield

Location: Chesterfield Co, SC

Reporting: True, Located: True

Current AQI: 48.0

Chesterfield Co SC, US: 34.615299, -80.198898

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 23, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (48) N/A N/A N/A 48.0
 
March 23, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (46) N/A N/A 2.4 μg/m3 (10) 46.0
 
March 23, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) N/A N/A N/A 45.0
 
March 23, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A N/A N/A 44.0
 
March 23, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 2.4 μg/m3 (10) 42.0
 
March 23, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 1.0 μg/m3 (4) 40.0
 
March 23, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 5.8 μg/m3 (24) 38.0
 
March 23, 2019, noon N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 3.9 μg/m3 (16) 30.0
 
March 23, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 4.3 μg/m3 (18) 31.0
 
March 23, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 4.9 μg/m3 (20) 38.0
 
March 23, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 5.6 μg/m3 (23) 35.0
 
March 23, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 6.9 μg/m3 (29) 38.0
 
March 23, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 7.4 μg/m3 (31) 38.0
 
March 23, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 6.3 μg/m3 (26) 38.0
 
March 23, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 6.1 μg/m3 (25) 38.0
 
March 23, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 4.7 μg/m3 (20) 34.0
 
March 23, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 6.4 μg/m3 (27) 35.0
 
March 23, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 8.7 μg/m3 (36) 38.0
 
March 23, 2019, midnight N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 7.4 μg/m3 (31) 40.0
 
March 22, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 6.0 μg/m3 (25) 41.0
 
March 22, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A N/A 6.5 μg/m3 (27) 43.0
 
March 22, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) N/A N/A 1.5 μg/m3 (6) 45.0
 
March 22, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A N/A 2.0 μg/m3 (8) 43.0
 
March 22, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 1.3 μg/m3 (5) 41.0
 
March 22, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 1.1 μg/m3 (5) 39.0
 
March 22, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.0 μg/m3 (21) 21.0
 
March 22, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.1 μg/m3 (13) 13.0
 
March 22, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 5.8 μg/m3 (24) 24.0
 
March 22, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 3.5 μg/m3 (15) 31.0
 
March 22, 2019, noon N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 4.8 μg/m3 (20) 29.0
 
March 22, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 4.3 μg/m3 (18) 28.0
 
March 22, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 2.9 μg/m3 (12) 28.0
 
March 22, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 3.1 μg/m3 (13) 29.0
 
March 22, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 4.3 μg/m3 (18) 30.0
 
March 22, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 3.7 μg/m3 (15) 31.0
 
March 22, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 5.4 μg/m3 (23) 33.0
 
March 22, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 2.9 μg/m3 (12) 35.0
 
March 22, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 1.0 μg/m3 (4) 39.0
 
March 22, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 5.3 μg/m3 (22) 40.0
 
March 22, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) N/A N/A 20.3 μg/m3 (68) 68.0
 
March 22, 2019, midnight N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A N/A 10.3 μg/m3 (43) 45.0
 
March 21, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A N/A 7.1 μg/m3 (30) 44.0
 
March 21, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (46) N/A N/A 10.1 μg/m3 (42) 46.0
 
March 21, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (52) N/A N/A 6.9 μg/m3 (29) 52.0
 
March 21, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (52) N/A N/A 7.7 μg/m3 (32) 52.0
 
March 21, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (48) N/A N/A 6.5 μg/m3 (27) 48.0
 
March 21, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) N/A N/A 1.6 μg/m3 (7) 45.0
 
March 21, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.3 μg/m3 (1) 1.0
 
March 21, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 1.5 μg/m3 (6) 6.0
 
March 21, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.2 μg/m3 (13) 13.0
 
March 21, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.6 μg/m3 (19) 19.0
 
March 21, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 4.2 μg/m3 (18) 36.0
 
March 21, 2019, noon N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 3.5 μg/m3 (15) 33.0
 
March 21, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 2.0 μg/m3 (8) 32.0
 
March 21, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 1.6 μg/m3 (7) 32.0
 
March 21, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 0.8 μg/m3 (3) 35.0
 
March 21, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 1.8 μg/m3 (8) 35.0
 
March 21, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 1.2 μg/m3 (5) 35.0
 
March 21, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A N/A 35.0
 
March 21, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A N/A 35.0
 
March 21, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 2.6 μg/m3 (11) 35.0
 
March 21, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 3.5 μg/m3 (15) 36.0
 
March 21, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 4.1 μg/m3 (17) 35.0
 
March 21, 2019, midnight N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 2.6 μg/m3 (11) 35.0
 
March 20, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 2.8 μg/m3 (12) 33.0
 
March 20, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 5.5 μg/m3 (23) 35.0
 
March 20, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 8.1 μg/m3 (34) 38.0
 
March 20, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 7.1 μg/m3 (30) 40.0
 
March 20, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 4.2 μg/m3 (18) 41.0
 
March 20, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A 5.2 μg/m3 (22) 41.0
 
March 20, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 2.9 μg/m3 (12) 40.0
 
March 20, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A N/A 38.0
 
March 20, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 3.9 μg/m3 (16) 37.0
 
March 20, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 2.4 μg/m3 (10) 35.0
 
March 20, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 5.0 μg/m3 (21) 35.0
 
March 20, 2019, noon N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 9.2 μg/m3 (38) 38.0
 
March 20, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 15.3 μg/m3 (57) 57.0
 
March 20, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 29.6 μg/m3 (87) 87.0
 
March 20, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 34.5 μg/m3 (98) 98.0
 
March 20, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 24.4 μg/m3 (76) 76.0
 
March 20, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 19.7 μg/m3 (66) 66.0
 
March 20, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 16.8 μg/m3 (60) 60.0
 
March 20, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 33.1 μg/m3 (95) 95.0
 
March 20, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 27.3 μg/m3 (83) 83.0
 
March 20, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 58.0 μg/m3 (151) 151.0
 
March 20, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 29.8 μg/m3 (88) 88.0
 
March 20, 2019, midnight N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 20.4 μg/m3 (68) 68.0
 
March 19, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (44) N/A N/A 20.2 μg/m3 (67) 67.0
 
March 19, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (48) N/A N/A 22.6 μg/m3 (73) 73.0
 
March 19, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (50) N/A N/A 19.8 μg/m3 (67) 67.0
 
March 19, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (48) N/A N/A 10.1 μg/m3 (42) 48.0
 
March 19, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (45) N/A N/A 9.9 μg/m3 (41) 45.0
 
March 19, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A N/A 7.9 μg/m3 (33) 45.0
 
March 19, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 5.2 μg/m3 (22) 42.0
 
March 19, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 3.9 μg/m3 (16) 39.0
 
March 19, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 8.5 μg/m3 (35) 37.0
 
March 19, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 5.6 μg/m3 (23) 35.0
 
March 19, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 5.6 μg/m3 (23) 32.0
 
March 19, 2019, noon N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 7.7 μg/m3 (32) 32.0
 
March 19, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 7.0 μg/m3 (29) 29.0
 
March 19, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 4.4 μg/m3 (18) 29.0
 
March 19, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 3.4 μg/m3 (14) 31.0
 
March 19, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 4.2 μg/m3 (18) 32.0
 
March 19, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 4.8 μg/m3 (20) 34.0
 
March 19, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 1.1 μg/m3 (5) 35.0
 
March 19, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (37) N/A N/A 1.1 μg/m3 (5) 37.0
 
March 19, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 2.0 μg/m3 (8) 38.0
 
March 19, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 5.3 μg/m3 (22) 38.0
 
March 19, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (38) N/A N/A 8.8 μg/m3 (37) 38.0
 
March 19, 2019, midnight N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 4.7 μg/m3 (20) 40.0
 
March 18, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 6.1 μg/m3 (25) 42.0
 
March 18, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (46) N/A N/A 4.3 μg/m3 (18) 46.0
 
March 18, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (48) N/A N/A 6.2 μg/m3 (26) 48.0
 
March 18, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 63.0 ppb (48) N/A N/A 3.9 μg/m3 (16) 48.0
 
March 18, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (47) N/A N/A 5.8 μg/m3 (24) 47.0
 
March 18, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (47) N/A N/A 1.4 μg/m3 (6) 47.0
 
March 18, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (45) N/A N/A 2.4 μg/m3 (10) 45.0
 
March 18, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (43) N/A N/A 4.4 μg/m3 (18) 43.0
 
March 18, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 7.4 μg/m3 (31) 39.0
 
March 18, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 7.2 μg/m3 (30) 35.0
 
March 18, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 6.0 μg/m3 (25) 27.0
 
March 18, 2019, noon N/A N/A N/A N/A N/A N/A 21.0 ppb (16) N/A N/A 5.4 μg/m3 (23) 23.0
 
March 18, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 10.3 μg/m3 (43) 43.0
 
March 18, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 6.5 μg/m3 (27) 35.0
 
March 18, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 4.4 μg/m3 (18) 35.0
 
March 18, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 4.3 μg/m3 (18) 34.0
 
March 18, 2019, midnight N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 1.1 μg/m3 (5) 35.0
 
March 17, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A N/A 36.0
 
March 17, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A 2.5 μg/m3 (10) 39.0
 
March 17, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 2.0 μg/m3 (8) 42.0
 
March 17, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (42) N/A N/A 0.5 μg/m3 (2) 42.0
 
March 17, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (42) N/A N/A 0.9 μg/m3 (4) 42.0
 
March 17, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (41) N/A N/A N/A 41.0
 
March 17, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (39) N/A N/A N/A 39.0
 
March 17, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 0.4 μg/m3 (2) 38.0
 
March 17, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 1.1 μg/m3 (5) 35.0
 
March 17, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 4.5 μg/m3 (19) 32.0
 
March 17, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (28) N/A N/A 5.0 μg/m3 (21) 28.0
 
March 17, 2019, noon N/A N/A N/A N/A N/A N/A 33.0 ppb (25) N/A N/A 7.0 μg/m3 (29) 29.0
 
March 17, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 8.5 μg/m3 (35) 35.0
 
March 17, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (23) N/A N/A 7.8 μg/m3 (32) 32.0
 
March 17, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (22) N/A N/A 8.4 μg/m3 (35) 35.0
 
March 17, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (24) N/A N/A 7.0 μg/m3 (29) 29.0
 
March 17, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 6.0 μg/m3 (25) 27.0
 
March 17, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 4.8 μg/m3 (20) 32.0
 
March 17, 2019, 5 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 6.5 μg/m3 (27) 33.0
 
March 17, 2019, 3 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 2.6 μg/m3 (11) 35.0
 
March 17, 2019, 2 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 3.2 μg/m3 (13) 32.0
 
March 17, 2019, 1 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (30) N/A N/A 2.6 μg/m3 (11) 30.0
 
March 17, 2019, midnight N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 6.0 μg/m3 (25) 28.0
 
March 16, 2019, 11 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (29) N/A N/A 1.5 μg/m3 (6) 29.0
 
March 16, 2019, 10 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (35) N/A N/A 1.0 μg/m3 (4) 35.0
 
March 16, 2019, 9 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 3.1 μg/m3 (13) 40.0
 
March 16, 2019, 8 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 1.4 μg/m3 (6) 40.0
 
March 16, 2019, 7 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A N/A 40.0
 
March 16, 2019, 6 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A N/A 40.0
 
March 16, 2019, 5 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (40) N/A N/A 1.5 μg/m3 (6) 40.0
 
March 16, 2019, 4 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (38) N/A N/A 2.3 μg/m3 (10) 38.0
 
March 16, 2019, 3 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (36) N/A N/A 1.4 μg/m3 (6) 36.0
 
March 16, 2019, 2 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (35) N/A N/A 4.8 μg/m3 (20) 35.0
 
March 16, 2019, 1 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (34) N/A N/A 2.3 μg/m3 (10) 34.0
 
March 16, 2019, noon N/A N/A N/A N/A N/A N/A 43.0 ppb (33) N/A N/A 2.7 μg/m3 (11) 33.0
 
March 16, 2019, 11 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 3.0 μg/m3 (12) 32.0
 
March 16, 2019, 10 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (31) N/A N/A 4.3 μg/m3 (18) 31.0
 
March 16, 2019, 9 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (32) N/A N/A 4.1 μg/m3 (17) 32.0
 
March 16, 2019, 8 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (32) N/A N/A 4.6 μg/m3 (19) 32.0
 
March 16, 2019, 7 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (27) N/A N/A 5.4 μg/m3 (23) 27.0
 
March 16, 2019, 6 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (28) N/A N/A 7.1 μg/m3 (30) 30.0