ID: 442

AQSQID: 220630002

Site Name: French Settlement

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

Updated: March 8, 2021, 8:32 a.m.

Location: French Settlement (Perrilloux Rd), LA

Reporting: True, Located: True

Current AQI: 88.0

French Settlement (Perrilloux Rd) LA, US: 30.315, -90.8114

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
March 8, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 29.6 μg/m3 (88) 88.0
 
March 8, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A 27.6 μg/m3 (84) 84.0
 
March 8, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A 25.5 μg/m3 (80) 80.0
 
March 8, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 19.8 μg/m3 (68) 68.0
 
March 8, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 20.3 μg/m3 (69) 69.0
 
March 8, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 26.1 μg/m3 (81) 81.0
 
March 8, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 35.5 μg/m3 (101) 101.0
 
March 8, 2021, midnight N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 38.2 μg/m3 (108) 108.0
 
March 7, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A N/A 15.9 μg/m3 (59) 59.0
 
March 7, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A N/A 8.9 μg/m3 (38) 50.0
 
March 7, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A 10.2 μg/m3 (43) 50.0
 
March 7, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A N/A 9.0 μg/m3 (38) 50.0
 
March 7, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A N/A 6.0 μg/m3 (25) 50.0
 
March 7, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A N/A 8.4 μg/m3 (36) 48.0
 
March 7, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A 8.7 μg/m3 (37) 46.0
 
March 7, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 6.4 μg/m3 (27) 44.0
 
March 7, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 4.7 μg/m3 (20) 39.0
 
March 7, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 10.0 μg/m3 (42) 42.0
 
March 7, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 12.7 μg/m3 (53) 53.0
 
March 7, 2021, noon N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 12.1 μg/m3 (51) 51.0
 
March 7, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 11.9 μg/m3 (50) 50.0
 
March 7, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 11.2 μg/m3 (47) 47.0
 
March 7, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 11.2 μg/m3 (47) 47.0
 
March 7, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 9.7 μg/m3 (41) 41.0
 
March 7, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 12.0 μg/m3 (50) 50.0
 
March 7, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 7, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 7.9 μg/m3 (33) 34.0
 
March 7, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 10.8 μg/m3 (46) 46.0
 
March 7, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 10.9 μg/m3 (46) 46.0
 
March 7, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 7, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 9.9 μg/m3 (42) 42.0
 
March 7, 2021, midnight N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 9.7 μg/m3 (41) 41.0
 
March 6, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 3.0 μg/m3 (13) 41.0
 
March 6, 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
 
March 6, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 5.3 μg/m3 (23) 42.0
 
March 6, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 5.3 μg/m3 (23) 41.0
 
March 6, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 2.6 μg/m3 (11) 40.0
 
March 6, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 2.7 μg/m3 (12) 38.0
 
March 6, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 5.0 μg/m3 (21) 36.0
 
March 6, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 6.8 μg/m3 (29) 32.0
 
March 6, 2021, 3 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
 
March 6, 2021, 2 p.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
 
March 6, 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
 
March 6, 2021, noon N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 11.6 μg/m3 (49) 49.0
 
March 6, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 11.6 μg/m3 (49) 49.0
 
March 6, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 12.7 μg/m3 (53) 53.0
 
March 6, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 17.8 μg/m3 (63) 63.0
 
March 6, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 17.7 μg/m3 (63) 63.0
 
March 6, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 16.6 μg/m3 (61) 61.0
 
March 6, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 12.3 μg/m3 (52) 52.0
 
March 6, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 15.2 μg/m3 (58) 58.0
 
March 6, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 16.2 μg/m3 (60) 60.0
 
March 6, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 14.8 μg/m3 (57) 57.0
 
March 6, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 12.0 μg/m3 (50) 50.0
 
March 6, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 19.3 μg/m3 (67) 67.0
 
March 6, 2021, midnight N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 14.1 μg/m3 (56) 56.0
 
March 5, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A N/A 13.9 μg/m3 (55) 55.0
 
March 5, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A 11.3 μg/m3 (48) 50.0
 
March 5, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A N/A 8.6 μg/m3 (36) 58.0
 
March 5, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A N/A 5.7 μg/m3 (24) 58.0
 
March 5, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A N/A 6.6 μg/m3 (28) 49.0
 
March 5, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 9.0 μg/m3 (38) 43.0
 
March 5, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A 5.2 μg/m3 (22) 45.0
 
March 5, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 5.4 μg/m3 (23) 38.0
 
March 5, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 12.4 μg/m3 (52) 52.0
 
March 5, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 14.8 μg/m3 (57) 57.0
 
March 5, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) N/A N/A 17.5 μg/m3 (63) 63.0
 
March 5, 2021, noon N/A N/A N/A N/A N/A N/A 4.0 ppb (4) N/A N/A 12.7 μg/m3 (53) 53.0
 
March 5, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) N/A N/A 12.4 μg/m3 (52) 52.0
 
March 5, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) N/A N/A 8.5 μg/m3 (36) 36.0
 
March 5, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) N/A N/A 7.9 μg/m3 (33) 33.0
 
March 5, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) N/A N/A 7.9 μg/m3 (33) 33.0
 
March 5, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A N/A 8.7 μg/m3 (37) 37.0
 
March 5, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A 7.7 μg/m3 (33) 33.0
 
March 5, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A N/A 7.2 μg/m3 (31) 31.0
 
March 5, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 7.8 μg/m3 (33) 33.0
 
March 5, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 7.6 μg/m3 (32) 32.0
 
March 5, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 8.1 μg/m3 (34) 34.0
 
March 5, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 7.1 μg/m3 (30) 30.0
 
March 5, 2021, midnight N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 4, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A 6.5 μg/m3 (28) 46.0
 
March 4, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A N/A 2.6 μg/m3 (11) 47.0
 
March 4, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A 4.3 μg/m3 (18) 46.0
 
March 4, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A 4.0 μg/m3 (17) 46.0
 
March 4, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A 0.9 μg/m3 (4) 45.0
 
March 4, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 2.2 μg/m3 (10) 44.0
 
March 4, 2021, 5 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
 
March 4, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 1.3 μg/m3 (6) 40.0
 
March 4, 2021, 3 p.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 4, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 5.2 μg/m3 (22) 25.0
 
March 4, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A N/A 17.7 μg/m3 (63) 63.0
 
March 4, 2021, noon N/A N/A N/A N/A N/A N/A 6.0 ppb (6) N/A N/A 7.3 μg/m3 (31) 31.0
 
March 4, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) N/A N/A 6.5 μg/m3 (28) 28.0
 
March 4, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A N/A 6.4 μg/m3 (27) 27.0
 
March 4, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A N/A 6.2 μg/m3 (26) 26.0
 
March 4, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) N/A N/A 7.7 μg/m3 (33) 33.0
 
March 4, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 8.9 μg/m3 (38) 38.0
 
March 4, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 6.0 ppb (6) N/A N/A 9.7 μg/m3 (41) 41.0
 
March 4, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 10.0 ppb (10) N/A N/A 7.4 μg/m3 (31) 31.0
 
March 4, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 13.0 ppb (13) N/A N/A 7.5 μg/m3 (32) 32.0
 
March 4, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A N/A 8.1 μg/m3 (34) 34.0
 
March 4, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 7.3 μg/m3 (31) 31.0
 
March 4, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 9.4 μg/m3 (40) 40.0
 
March 4, 2021, midnight N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 8.0 μg/m3 (34) 34.0
 
March 3, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 6.6 μg/m3 (28) 38.0
 
March 3, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 4.6 μg/m3 (20) 40.0
 
March 3, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 4.5 μg/m3 (19) 40.0
 
March 3, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 4.6 μg/m3 (20) 39.0
 
March 3, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 4.1 μg/m3 (18) 39.0
 
March 3, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 4.7 μg/m3 (20) 39.0
 
March 3, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 4.1 μg/m3 (18) 37.0
 
March 3, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 3.7 μg/m3 (16) 38.0
 
March 3, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 3.3 μg/m3 (14) 36.0
 
March 3, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 3.8 μg/m3 (16) 31.0
 
March 3, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 3.0 μg/m3 (13) 28.0
 
March 3, 2021, noon N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 6.9 μg/m3 (29) 29.0
 
March 3, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 3.1 μg/m3 (13) 32.0
 
March 3, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 4.7 μg/m3 (20) 31.0
 
March 3, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 4.0 μg/m3 (17) 32.0
 
March 3, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 2.1 μg/m3 (9) 32.0
 
March 3, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 2.9 μg/m3 (13) 30.0
 
March 3, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 4.3 μg/m3 (18) 30.0
 
March 3, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 1.9 μg/m3 (8) 31.0
 
March 3, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 2.8 μg/m3 (12) 31.0
 
March 3, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 3.3 μg/m3 (14) 29.0
 
March 3, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 3.0 μg/m3 (13) 30.0
 
March 3, 2021, 1 a.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 3, 2021, midnight N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 2.5 μg/m3 (11) 25.0
 
March 2, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 2.8 μg/m3 (12) 25.0
 
March 2, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 2.2 μg/m3 (10) 26.0
 
March 2, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 1.1 μg/m3 (5) 28.0
 
March 2, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 2.1 μg/m3 (9) 30.0
 
March 2, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 2.6 μg/m3 (11) 29.0
 
March 2, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 0.6 μg/m3 (3) 28.0
 
March 2, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 2.1 μg/m3 (9) 28.0
 
March 2, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 1.6 μg/m3 (7) 29.0
 
March 2, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 3.7 μg/m3 (16) 30.0
 
March 2, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 4.7 μg/m3 (20) 31.0
 
March 2, 2021, 1 p.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, noon N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 2.4 μg/m3 (10) 27.0
 
March 2, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 4.5 μg/m3 (19) 26.0
 
March 2, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 3.3 μg/m3 (14) 24.0
 
March 2, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 2.5 μg/m3 (11) 18.0
 
March 2, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 4.2 μg/m3 (18) 20.0
 
March 2, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A 6.2 μg/m3 (26) 26.0
 
March 2, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 7.9 μg/m3 (33) 33.0
 
March 2, 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
 
March 2, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 3.2 μg/m3 (14) 31.0
 
March 2, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 4.3 μg/m3 (18) 31.0
 
March 2, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 6.6 μg/m3 (28) 33.0
 
March 2, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 2.6 μg/m3 (11) 36.0
 
March 2, 2021, midnight N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 2.0 μg/m3 (9) 36.0
 
March 1, 2021, 11 p.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
 
March 1, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 5.3 μg/m3 (23) 30.0
 
March 1, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 4.1 μg/m3 (18) 31.0
 
March 1, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 3.6 μg/m3 (16) 31.0
 
March 1, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 3.4 μg/m3 (15) 29.0
 
March 1, 2021, 6 p.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 1, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 8.7 μg/m3 (37) 37.0
 
March 1, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 9.8 μg/m3 (41) 41.0
 
March 1, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A 9.1 μg/m3 (38) 38.0
 
March 1, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A N/A 14.3 μg/m3 (56) 56.0
 
March 1, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 15.2 μg/m3 (58) 58.0
 
March 1, 2021, noon 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
 
March 1, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 9.0 μg/m3 (38) 38.0
 
March 1, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 1.0 ppb (1) N/A N/A 6.4 μg/m3 (27) 27.0
 
March 1, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 4.7 μg/m3 (20) 20.0
 
March 1, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) N/A N/A 4.2 μg/m3 (18) 18.0