ID: 487

AQSQID: 260050003

Site Name: Holland

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

Updated: Sept. 21, 2021, 4:06 p.m.

Location: Holland (Graafschap), MI

Reporting: True, Located: True

Current AQI: 26.0

Holland (Graafschap) MI, US: 42.767799, -86.148598

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 21, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A -0.8 μg/m3 (0) 26.0
 
Sept. 21, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 1.7 μg/m3 (8) 26.0
 
Sept. 21, 2021, noon N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 1.0 μg/m3 (5) 38.0
 
Sept. 21, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 1.0 μg/m3 (5) 40.0
 
Sept. 21, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 2.8 μg/m3 (12) 38.0
 
Sept. 21, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A 3.9 μg/m3 (17) 23.0
 
Sept. 21, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A 3.0 μg/m3 (13) 23.0
 
Sept. 21, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A 2.0 μg/m3 (9) 23.0
 
Sept. 21, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 2.9 μg/m3 (13) 22.0
 
Sept. 21, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 2.0 μg/m3 (9) 9.0
 
Sept. 21, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A 1.0 μg/m3 (5) 23.0
 
Sept. 21, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A -0.8 μg/m3 (0) 23.0
 
Sept. 21, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 0.0 μg/m3 (0) 24.0
 
Sept. 21, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 2.7 μg/m3 (12) 24.0
 
Sept. 21, 2021, midnight N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 3.9 μg/m3 (17) 25.0
 
Sept. 20, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 2.1 μg/m3 (9) 26.0
 
Sept. 20, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 3.8 μg/m3 (16) 26.0
 
Sept. 20, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 4.9 μg/m3 (21) 25.0
 
Sept. 20, 2021, 8 p.m. 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
 
Sept. 20, 2021, 7 p.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
 
Sept. 20, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 8.8 μg/m3 (37) 37.0
 
Sept. 20, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 1.5 μg/m3 (7) 31.0
 
Sept. 20, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 1.0 μg/m3 (5) 33.0
 
Sept. 20, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 5.6 μg/m3 (24) 31.0
 
Sept. 20, 2021, 2 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
 
Sept. 20, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 6.0 μg/m3 (25) 28.0
 
Sept. 20, 2021, noon N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 5.0 μg/m3 (21) 30.0
 
Sept. 20, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 7.7 μg/m3 (33) 33.0
 
Sept. 20, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 9.8 μg/m3 (41) 41.0
 
Sept. 20, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 11.8 μg/m3 (50) 50.0
 
Sept. 20, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 12.0 μg/m3 (50) 50.0
 
Sept. 20, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 8.2 μg/m3 (35) 41.0
 
Sept. 20, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 6.1 μg/m3 (26) 42.0
 
Sept. 20, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.9 μg/m3 (29) 29.0
 
Sept. 20, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 8.8 μg/m3 (37) 44.0
 
Sept. 20, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A 7.1 μg/m3 (30) 45.0
 
Sept. 20, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 9.7 μg/m3 (41) 44.0
 
Sept. 20, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 9.0 μg/m3 (38) 40.0
 
Sept. 20, 2021, midnight N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 6.2 μg/m3 (26) 39.0
 
Sept. 19, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A N/A 6.9 μg/m3 (29) 48.0
 
Sept. 19, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A N/A 7.0 μg/m3 (30) 61.0
 
Sept. 19, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A N/A 4.2 μg/m3 (18) 65.0
 
Sept. 19, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A N/A 5.8 μg/m3 (25) 65.0
 
Sept. 19, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A N/A 7.8 μg/m3 (33) 65.0
 
Sept. 19, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A N/A 6.1 μg/m3 (26) 65.0
 
Sept. 19, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A 3.2 μg/m3 (14) 55.0
 
Sept. 19, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 1.1 μg/m3 (5) 43.0
 
Sept. 19, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 3.7 μg/m3 (16) 34.0
 
Sept. 19, 2021, 2 p.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
 
Sept. 19, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 6.9 μg/m3 (29) 29.0
 
Sept. 19, 2021, noon N/A N/A N/A N/A N/A N/A 15.0 ppb (14) N/A N/A 7.9 μg/m3 (33) 33.0
 
Sept. 19, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A 7.0 μg/m3 (30) 30.0
 
Sept. 19, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A 7.9 μg/m3 (33) 33.0
 
Sept. 19, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 8.9 μg/m3 (38) 38.0
 
Sept. 19, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 5.2 μg/m3 (22) 22.0
 
Sept. 19, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 2.2 μg/m3 (10) 21.0
 
Sept. 19, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A 2.9 μg/m3 (13) 23.0
 
Sept. 19, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 4.8 μg/m3 (20) 25.0
 
Sept. 19, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 7.7 μg/m3 (33) 33.0
 
Sept. 19, 2021, 3 a.m. 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
 
Sept. 19, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 4.2 μg/m3 (18) 30.0
 
Sept. 19, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 4.0 μg/m3 (17) 21.0
 
Sept. 19, 2021, midnight N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 3.0 μg/m3 (13) 24.0
 
Sept. 18, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 2.0 μg/m3 (9) 32.0
 
Sept. 18, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 2.9 μg/m3 (13) 39.0
 
Sept. 18, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A 5.7 μg/m3 (24) 46.0
 
Sept. 18, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A N/A 6.0 μg/m3 (25) 51.0
 
Sept. 18, 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
 
Sept. 18, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A 6.0 μg/m3 (25) 45.0
 
Sept. 18, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 6.0 μg/m3 (25) 41.0
 
Sept. 18, 2021, 4 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
 
Sept. 18, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 4.8 μg/m3 (20) 35.0
 
Sept. 18, 2021, 2 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
 
Sept. 18, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 2.2 μg/m3 (10) 31.0
 
Sept. 18, 2021, noon N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 4.7 μg/m3 (20) 29.0
 
Sept. 18, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 7.7 μg/m3 (33) 33.0
 
Sept. 18, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 8.9 μg/m3 (38) 38.0
 
Sept. 18, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 7.1 μg/m3 (30) 33.0
 
Sept. 18, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 8.8 μg/m3 (37) 37.0
 
Sept. 18, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 7.1 μg/m3 (30) 38.0
 
Sept. 18, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 7.9 μg/m3 (33) 41.0
 
Sept. 18, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.7 μg/m3 (45) 45.0
 
Sept. 18, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (81) N/A N/A 7.2 μg/m3 (31) 81.0
 
Sept. 18, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A N/A 8.8 μg/m3 (37) 65.0
 
Sept. 18, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (81) N/A N/A 11.7 μg/m3 (49) 81.0
 
Sept. 18, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 72.0 ppb (102) N/A N/A 10.1 μg/m3 (43) 102.0
 
Sept. 18, 2021, midnight N/A N/A N/A N/A N/A N/A 66.0 ppb (87) N/A N/A 11.8 μg/m3 (50) 87.0
 
Sept. 17, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 71.0 ppb (101) N/A N/A 11.0 μg/m3 (46) 101.0
 
Sept. 17, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 81.0 ppb (107) N/A N/A 10.0 μg/m3 (42) 107.0
 
Sept. 17, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 86.0 ppb (109) N/A N/A 10.0 μg/m3 (42) 109.0
 
Sept. 17, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 81.0 ppb (107) N/A N/A 9.0 μg/m3 (38) 107.0
 
Sept. 17, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 71.0 ppb (101) N/A N/A 5.2 μg/m3 (22) 101.0
 
Sept. 17, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A N/A 7.7 μg/m3 (33) 71.0
 
Sept. 17, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A N/A 6.1 μg/m3 (26) 61.0
 
Sept. 17, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A N/A 8.7 μg/m3 (37) 49.0
 
Sept. 17, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 9.9 μg/m3 (42) 43.0
 
Sept. 17, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 6.2 μg/m3 (26) 37.0
 
Sept. 17, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 8.7 μg/m3 (37) 37.0
 
Sept. 17, 2021, noon N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 4.3 μg/m3 (18) 25.0
 
Sept. 17, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 2.1 μg/m3 (9) 26.0
 
Sept. 17, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 2.9 μg/m3 (13) 27.0
 
Sept. 17, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 3.9 μg/m3 (17) 30.0
 
Sept. 17, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 4.9 μg/m3 (21) 33.0
 
Sept. 17, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 5.0 μg/m3 (21) 33.0
 
Sept. 17, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 5.9 μg/m3 (25) 31.0
 
Sept. 17, 2021, 5 a.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
 
Sept. 17, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 5.0 μg/m3 (21) 33.0
 
Sept. 17, 2021, 3 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
 
Sept. 17, 2021, 2 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
 
Sept. 17, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 5.8 μg/m3 (25) 25.0
 
Sept. 17, 2021, midnight N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 4.1 μg/m3 (18) 28.0
 
Sept. 16, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 3.0 μg/m3 (13) 42.0
 
Sept. 16, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A 3.9 μg/m3 (17) 50.0
 
Sept. 16, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A N/A 4.9 μg/m3 (21) 50.0
 
Sept. 16, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A N/A 5.9 μg/m3 (25) 50.0
 
Sept. 16, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 51.0 ppb (48) N/A N/A 6.0 μg/m3 (25) 48.0
 
Sept. 16, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A 4.1 μg/m3 (18) 46.0
 
Sept. 16, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 5.8 μg/m3 (25) 44.0
 
Sept. 16, 2021, 4 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
 
Sept. 16, 2021, 3 p.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
 
Sept. 16, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 5.0 μg/m3 (21) 26.0
 
Sept. 16, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 14.0 ppb (13) N/A N/A 6.8 μg/m3 (29) 29.0
 
Sept. 16, 2021, noon N/A N/A N/A N/A N/A N/A 4.0 ppb (4) N/A N/A 8.8 μg/m3 (37) 37.0
 
Sept. 16, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 2.0 ppb (2) N/A N/A 5.2 μg/m3 (22) 22.0
 
Sept. 16, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 5.0 ppb (5) N/A N/A 3.1 μg/m3 (13) 13.0
 
Sept. 16, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) N/A N/A 4.8 μg/m3 (20) 20.0
 
Sept. 16, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 7.0 ppb (7) N/A N/A 7.7 μg/m3 (33) 33.0
 
Sept. 16, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) N/A N/A 8.0 μg/m3 (34) 34.0
 
Sept. 16, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 4.0 ppb (4) N/A N/A 6.1 μg/m3 (26) 26.0
 
Sept. 16, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 16, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 8.0 ppb (8) N/A N/A 2.3 μg/m3 (10) 10.0
 
Sept. 16, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A N/A 5.6 μg/m3 (24) 24.0
 
Sept. 16, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A N/A 6.0 μg/m3 (25) 25.0
 
Sept. 16, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A N/A 3.2 μg/m3 (14) 16.0
 
Sept. 16, 2021, midnight N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 2.0 μg/m3 (9) 25.0
 
Sept. 15, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 2.0 μg/m3 (9) 31.0
 
Sept. 15, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 2.0 μg/m3 (9) 34.0
 
Sept. 15, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 2.9 μg/m3 (13) 33.0
 
Sept. 15, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 2.0 μg/m3 (9) 33.0
 
Sept. 15, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 2.9 μg/m3 (13) 34.0
 
Sept. 15, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 5.7 μg/m3 (24) 35.0
 
Sept. 15, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 6.0 μg/m3 (25) 35.0
 
Sept. 15, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 4.1 μg/m3 (18) 34.0
 
Sept. 15, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 5.8 μg/m3 (25) 33.0
 
Sept. 15, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 6.0 μg/m3 (25) 31.0
 
Sept. 15, 2021, 1 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
 
Sept. 15, 2021, noon N/A N/A N/A N/A N/A N/A 12.0 ppb (12) N/A N/A 2.9 μg/m3 (13) 13.0
 
Sept. 15, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 9.0 ppb (9) N/A N/A 2.0 μg/m3 (9) 9.0
 
Sept. 15, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 2.0 μg/m3 (9) 19.0
 
Sept. 15, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 0.1 μg/m3 (1) 24.0
 
Sept. 15, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 0.0 μg/m3 (0) 27.0
 
Sept. 15, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A -0.9 μg/m3 (0) 30.0
 
Sept. 15, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A -1.0 μg/m3 (0) 30.0
 
Sept. 15, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A -1.0 μg/m3 (0) 0.0
Sept. 15, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 0.0 μg/m3 (0) 33.0
 
Sept. 15, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 0.9 μg/m3 (4) 34.0
 
Sept. 15, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 0.0 μg/m3 (0) 34.0
 
Sept. 15, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 0.0 μg/m3 (0) 35.0
 
Sept. 15, 2021, midnight N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 1.8 μg/m3 (8) 35.0
 
Sept. 14, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 2.0 μg/m3 (9) 37.0
 
Sept. 14, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 4.7 μg/m3 (20) 37.0
 
Sept. 14, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 8.6 μg/m3 (36) 40.0
 
Sept. 14, 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
 
Sept. 14, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A N/A 7.1 μg/m3 (30) 65.0
 
Sept. 14, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A 9.7 μg/m3 (41) 55.0
 
Sept. 14, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A 7.2 μg/m3 (31) 45.0
 
Sept. 14, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 10.6 μg/m3 (45) 45.0
 
Sept. 14, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 10.0 μg/m3 (42) 42.0