ID: 530

AQSQID: 290990019

Site Name: Arnold West

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

Updated: April 11, 2021, 3:42 a.m.

Location: Arnold (Maxville), MO

Reporting: True, Located: True

Current AQI: 31.0

Arnold (Maxville) MO, US: 38.448581, -90.398436

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
April 11, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 4.0 μg/m3 (4) 6.0 μg/m3 (25) 31.0
 
April 11, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 3.0 μg/m3 (3) 5.0 μg/m3 (21) 32.0
 
April 11, 2021, midnight N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 5.0 μg/m3 (5) 4.2 μg/m3 (18) 32.0
 
April 10, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 3.0 μg/m3 (3) 0.5 μg/m3 (3) 35.0
 
April 10, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 5.0 μg/m3 (5) 2.1 μg/m3 (9) 34.0
 
April 10, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 5.0 μg/m3 (5) 6.1 μg/m3 (26) 36.0
 
April 10, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 3.0 μg/m3 (3) 3.8 μg/m3 (16) 38.0
 
April 10, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 5.0 μg/m3 (5) 2.3 μg/m3 (10) 33.0
 
April 10, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 2.0 μg/m3 (2) 3.8 μg/m3 (16) 29.0
 
April 10, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 0.0 μg/m3 (0) 1.8 μg/m3 (8) 25.0
 
April 10, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 1.0 μg/m3 (1) 0.0 μg/m3 (0) 21.0
 
April 10, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 3.0 μg/m3 (3) 2.7 μg/m3 (12) 24.0
 
April 10, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 2.0 μg/m3 (2) 10.1 μg/m3 (43) 43.0
 
April 10, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 8.0 μg/m3 (8) 5.6 μg/m3 (24) 27.0
 
April 10, 2021, noon N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 8.0 μg/m3 (8) 8.1 μg/m3 (34) 34.0
 
April 10, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 8.0 μg/m3 (8) 7.2 μg/m3 (31) 31.0
 
April 10, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 7.0 μg/m3 (7) 10.0 μg/m3 (42) 42.0
 
April 10, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A 7.0 μg/m3 (7) 8.1 μg/m3 (34) 34.0
 
April 10, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A 9.0 μg/m3 (9) 9.4 μg/m3 (40) 40.0
 
April 10, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 9.0 μg/m3 (9) 4.5 μg/m3 (19) 38.0
 
April 10, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 6.0 μg/m3 (6) 2.7 μg/m3 (12) 40.0
 
April 10, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 6.0 μg/m3 (6) 9.3 μg/m3 (39) 42.0
 
April 10, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 15.0 μg/m3 (14) 9.0 μg/m3 (38) 38.0
 
April 10, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 18.0 μg/m3 (17) 9.0 μg/m3 (38) 41.0
 
April 10, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 15.0 μg/m3 (14) 9.6 μg/m3 (40) 46.0
 
April 10, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 39.0 μg/m3 (37) 11.3 μg/m3 (48) 48.0
 
April 10, 2021, midnight N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 29.0 μg/m3 (27) 10.9 μg/m3 (46) 46.0
 
April 9, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 19.0 μg/m3 (18) 9.3 μg/m3 (39) 46.0
 
April 9, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 24.0 μg/m3 (23) 16.2 μg/m3 (60) 60.0
 
April 9, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A 25.0 μg/m3 (24) 12.8 μg/m3 (53) 55.0
 
April 9, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A 22.0 μg/m3 (21) 13.3 μg/m3 (54) 58.0
 
April 9, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A 23.0 μg/m3 (22) 18.3 μg/m3 (65) 65.0
 
April 9, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A 23.0 μg/m3 (22) 9.5 μg/m3 (40) 50.0
 
April 9, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A 21.0 μg/m3 (20) 11.4 μg/m3 (48) 48.0
 
April 9, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 21.0 μg/m3 (20) 7.2 μg/m3 (31) 46.0
 
April 9, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 21.0 μg/m3 (20) 9.1 μg/m3 (38) 38.0
 
April 9, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 18.0 μg/m3 (17) 5.8 μg/m3 (25) 25.0
 
April 9, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A 18.0 μg/m3 (17) 6.6 μg/m3 (28) 28.0
 
April 9, 2021, noon N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 16.0 μg/m3 (15) 8.9 μg/m3 (38) 38.0
 
April 9, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 13.0 μg/m3 (13) 7.1 μg/m3 (30) 30.0
 
April 9, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 18.0 μg/m3 (17) 9.1 μg/m3 (38) 38.0
 
April 9, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 9.0 μg/m3 (9) 8.0 μg/m3 (34) 34.0
 
April 9, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 9.0 μg/m3 (9) 6.7 μg/m3 (28) 28.0
 
April 9, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A 8.0 μg/m3 (8) 7.6 μg/m3 (32) 32.0
 
April 9, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A 9.0 μg/m3 (9) 6.5 μg/m3 (28) 28.0
 
April 9, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A 10.0 μg/m3 (10) 3.5 μg/m3 (15) 18.0
 
April 9, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A 8.0 μg/m3 (8) 5.9 μg/m3 (25) 25.0
 
April 9, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 8.0 μg/m3 (8) 6.7 μg/m3 (28) 28.0
 
April 9, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 10.0 μg/m3 (10) 4.8 μg/m3 (20) 26.0
 
April 9, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 11.0 μg/m3 (11) 7.9 μg/m3 (33) 33.0
 
April 9, 2021, midnight N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 10.0 μg/m3 (10) 2.9 μg/m3 (13) 28.0
 
April 8, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 9.0 μg/m3 (9) 3.1 μg/m3 (13) 25.0
 
April 8, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 9.0 μg/m3 (9) 7.1 μg/m3 (30) 30.0
 
April 8, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 10.0 μg/m3 (10) 1.9 μg/m3 (8) 28.0
 
April 8, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 7.0 μg/m3 (7) 3.5 μg/m3 (15) 29.0
 
April 8, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 7.0 μg/m3 (7) 1.0 μg/m3 (5) 29.0
 
April 8, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 5.0 μg/m3 (5) 3.4 μg/m3 (15) 29.0
 
April 8, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 5.0 μg/m3 (5) 7.4 μg/m3 (31) 31.0
 
April 8, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 9.0 μg/m3 (9) 4.6 μg/m3 (20) 29.0
 
April 8, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 8.0 μg/m3 (8) 1.9 μg/m3 (8) 29.0
 
April 8, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 6.0 μg/m3 (6) 4.8 μg/m3 (20) 30.0
 
April 8, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A 4.0 μg/m3 (4) 3.7 μg/m3 (16) 26.0
 
April 8, 2021, noon N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 10.0 μg/m3 (10) 5.9 μg/m3 (25) 25.0
 
April 8, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A 15.0 μg/m3 (14) 5.5 μg/m3 (23) 23.0
 
April 8, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A 18.0 μg/m3 (17) 2.1 μg/m3 (9) 17.0
 
April 8, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A 15.0 μg/m3 (14) 2.8 μg/m3 (12) 22.0
 
April 8, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 13.0 μg/m3 (13) 2.9 μg/m3 (13) 25.0
 
April 8, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 14.0 μg/m3 (13) 4.4 μg/m3 (19) 25.0
 
April 8, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 13.0 μg/m3 (13) 6.2 μg/m3 (26) 26.0
 
April 8, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 12.0 μg/m3 (12) 11.2 μg/m3 (47) 47.0
 
April 8, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 12.0 μg/m3 (12) 12.5 μg/m3 (52) 52.0
 
April 8, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 5.0 μg/m3 (5) -4.9 μg/m3 (0) 30.0
 
April 8, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 10.0 μg/m3 (10) 4.3 μg/m3 (18) 31.0
 
April 8, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 13.0 μg/m3 (13) 1.1 μg/m3 (5) 34.0
 
April 8, 2021, midnight N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 8.0 μg/m3 (8) 9.1 μg/m3 (38) 39.0
 
April 7, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A 30.0 μg/m3 (28) 12.4 μg/m3 (52) 52.0
 
April 7, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 28.0 μg/m3 (26) 10.9 μg/m3 (46) 46.0
 
April 7, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 22.0 μg/m3 (21) 10.5 μg/m3 (44) 44.0
 
April 7, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 19.0 μg/m3 (18) 12.6 μg/m3 (53) 53.0
 
April 7, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 16.0 μg/m3 (15) 8.3 μg/m3 (35) 35.0
 
April 7, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A 17.0 μg/m3 (16) 12.2 μg/m3 (52) 52.0
 
April 7, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 18.0 μg/m3 (17) 10.6 μg/m3 (45) 45.0
 
April 7, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 14.0 μg/m3 (13) 11.1 μg/m3 (47) 47.0
 
April 7, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 18.0 μg/m3 (17) 9.6 μg/m3 (40) 40.0
 
April 7, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A 22.0 μg/m3 (21) 9.3 μg/m3 (39) 39.0
 
April 7, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 19.0 μg/m3 (18) 10.1 μg/m3 (43) 43.0
 
April 7, 2021, noon N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A 19.0 μg/m3 (18) 7.6 μg/m3 (32) 32.0
 
April 7, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A 20.0 μg/m3 (19) 4.9 μg/m3 (21) 25.0
 
April 7, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A 19.0 μg/m3 (18) 14.3 μg/m3 (56) 56.0
 
April 7, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 20.0 μg/m3 (19) 5.9 μg/m3 (25) 30.0
 
April 7, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 23.0 μg/m3 (22) 11.9 μg/m3 (50) 50.0
 
April 7, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 24.0 μg/m3 (23) 8.0 μg/m3 (34) 34.0
 
April 7, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A 19.0 μg/m3 (18) 7.3 μg/m3 (31) 31.0
 
April 7, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A 22.0 μg/m3 (21) 9.2 μg/m3 (39) 39.0
 
April 7, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 25.0 μg/m3 (24) 14.7 μg/m3 (57) 57.0
 
April 7, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 28.0 μg/m3 (26) 9.6 μg/m3 (40) 42.0
 
April 7, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 32.0 μg/m3 (30) 8.0 μg/m3 (34) 45.0
 
April 7, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 30.0 μg/m3 (28) 11.9 μg/m3 (50) 50.0
 
April 7, 2021, midnight N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 25.0 μg/m3 (24) 7.9 μg/m3 (33) 42.0
 
April 6, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 25.0 μg/m3 (24) 12.9 μg/m3 (53) 53.0
 
April 6, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A 28.0 μg/m3 (26) 17.8 μg/m3 (63) 63.0
 
April 6, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A 27.0 μg/m3 (25) 21.9 μg/m3 (72) 72.0
 
April 6, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A 22.0 μg/m3 (21) 14.8 μg/m3 (57) 57.0
 
April 6, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 21.0 μg/m3 (20) 20.3 μg/m3 (69) 69.0
 
April 6, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 23.0 μg/m3 (22) 11.6 μg/m3 (49) 49.0
 
April 6, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A 24.0 μg/m3 (23) 19.7 μg/m3 (67) 67.0
 
April 6, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A 25.0 μg/m3 (24) 19.3 μg/m3 (67) 67.0
 
April 6, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 26.0 μg/m3 (25) 17.5 μg/m3 (63) 63.0
 
April 6, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A N/A N/A 29.0 μg/m3 (27) 0.0 μg/m3 (0) 27.0
 
April 6, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A
April 6, 2021, noon N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A 29.0 μg/m3 (27) 13.7 μg/m3 (55) 55.0
 
April 6, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 24.0 μg/m3 (23) 1.9 μg/m3 (8) 33.0
 
April 6, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 22.0 μg/m3 (21) 11.3 μg/m3 (48) 48.0
 
April 6, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A 22.0 μg/m3 (21) 9.7 μg/m3 (41) 41.0
 
April 6, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 23.0 μg/m3 (22) N/A 39.0
 
April 6, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 25.0 μg/m3 (24) 21.8 μg/m3 (72) 72.0
 
April 6, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 24.0 μg/m3 (23) 15.1 μg/m3 (58) 58.0
 
April 6, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A 26.0 μg/m3 (25) 11.7 μg/m3 (49) 49.0
 
April 6, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 26.0 μg/m3 (25) 10.2 μg/m3 (43) 45.0
 
April 6, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 21.0 μg/m3 (20) 2.5 μg/m3 (11) 42.0
 
April 6, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 17.0 μg/m3 (16) 10.7 μg/m3 (45) 45.0
 
April 6, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 16.0 μg/m3 (15) 5.6 μg/m3 (24) 41.0
 
April 6, 2021, midnight N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 15.0 μg/m3 (14) 10.4 μg/m3 (44) 44.0
 
April 5, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 15.0 μg/m3 (14) 7.6 μg/m3 (32) 45.0
 
April 5, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 15.0 μg/m3 (14) 8.4 μg/m3 (36) 46.0
 
April 5, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 15.0 μg/m3 (14) 4.6 μg/m3 (20) 47.0
 
April 5, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A 18.0 μg/m3 (17) 13.0 μg/m3 (53) 53.0
 
April 5, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A 14.0 μg/m3 (13) 8.6 μg/m3 (36) 48.0
 
April 5, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A 14.0 μg/m3 (13) 8.6 μg/m3 (36) 48.0
 
April 5, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 14.0 μg/m3 (13) 12.1 μg/m3 (51) 51.0
 
April 5, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A 13.0 μg/m3 (13) 7.3 μg/m3 (31) 42.0
 
April 5, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A 18.0 μg/m3 (17) 10.0 μg/m3 (42) 42.0
 
April 5, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A 24.0 μg/m3 (23) 10.5 μg/m3 (44) 44.0
 
April 5, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A 33.0 μg/m3 (31) 14.6 μg/m3 (57) 57.0
 
April 5, 2021, noon N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A 28.0 μg/m3 (26) 12.8 μg/m3 (53) 53.0
 
April 5, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A 26.0 μg/m3 (25) 16.9 μg/m3 (62) 62.0
 
April 5, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 24.0 μg/m3 (23) 12.0 μg/m3 (50) 50.0
 
April 5, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A 23.0 μg/m3 (22) 10.6 μg/m3 (45) 48.0
 
April 5, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A 23.0 μg/m3 (22) 12.4 μg/m3 (52) 52.0
 
April 5, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A 26.0 μg/m3 (25) 6.8 μg/m3 (29) 50.0
 
April 5, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A 29.0 μg/m3 (27) 21.1 μg/m3 (70) 70.0
 
April 5, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A 31.0 μg/m3 (29) 23.5 μg/m3 (75) 75.0
 
April 5, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A 31.0 μg/m3 (29) 17.5 μg/m3 (63) 63.0
 
April 5, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 31.0 μg/m3 (29) 19.8 μg/m3 (68) 68.0
 
April 5, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A 34.0 μg/m3 (32) 15.5 μg/m3 (59) 59.0
 
April 5, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A 38.0 μg/m3 (36) 18.5 μg/m3 (65) 65.0
 
April 5, 2021, midnight N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A 40.0 μg/m3 (38) 26.5 μg/m3 (82) 82.0
 
April 4, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (91) N/A 37.0 μg/m3 (35) 21.1 μg/m3 (70) 91.0
 
April 4, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (94) N/A 38.0 μg/m3 (36) 13.1 μg/m3 (54) 94.0
 
April 4, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (94) N/A 38.0 μg/m3 (36) 24.8 μg/m3 (78) 94.0
 
April 4, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 67.0 ppb (91) N/A 38.0 μg/m3 (36) 22.8 μg/m3 (74) 91.0
 
April 4, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 68.0 ppb (94) N/A 41.0 μg/m3 (38) 19.7 μg/m3 (67) 94.0
 
April 4, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 66.0 ppb (87) N/A 35.0 μg/m3 (33) 16.0 μg/m3 (60) 87.0
 
April 4, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A 29.0 μg/m3 (27) 17.8 μg/m3 (63) 68.0
 
April 4, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A 27.0 μg/m3 (25) 18.1 μg/m3 (64) 64.0
 
April 4, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A 29.0 μg/m3 (27) 14.7 μg/m3 (57) 57.0
 
April 4, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A 29.0 μg/m3 (27) 16.2 μg/m3 (60) 60.0
 
April 4, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 30.0 μg/m3 (28) 23.7 μg/m3 (76) 76.0
 
April 4, 2021, noon N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 31.0 μg/m3 (29) 21.2 μg/m3 (71) 71.0
 
April 4, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 29.0 μg/m3 (27) 18.9 μg/m3 (66) 66.0
 
April 4, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 28.0 μg/m3 (26) 18.0 μg/m3 (64) 64.0
 
April 4, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 25.0 μg/m3 (24) 18.4 μg/m3 (65) 65.0
 
April 4, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 21.0 μg/m3 (20) 15.7 μg/m3 (59) 59.0
 
April 4, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A 19.0 μg/m3 (18) 12.6 μg/m3 (53) 53.0
 
April 4, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 18.0 μg/m3 (17) 10.1 μg/m3 (43) 46.0
 
April 4, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A 19.0 μg/m3 (18) 7.1 μg/m3 (30) 46.0
 
April 4, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A 21.0 μg/m3 (20) 10.8 μg/m3 (46) 46.0
 
April 4, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A 29.0 μg/m3 (27) 17.5 μg/m3 (63) 63.0