ID: 925

AQSQID: 550890009

Site Name: Harrington Bch

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

Updated: Sept. 21, 2021, 5:05 p.m.

Location: Belgium (Co Hwy D), WI

Reporting: True, Located: True

Current AQI: 25.0

Belgium (Co Hwy D) WI, US: 43.4981, -87.81

Date Observed (UTC) NOX NO NOY NO2 NO2Y SO2 OZONE CO PM10 PM2.5 AQI AQI/500
Sept. 21, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 3.2 μg/m3 (14) 25.0
 
Sept. 21, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 4.3 μg/m3 (18) 24.0
 
Sept. 21, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 5.4 μg/m3 (23) 23.0
 
Sept. 21, 2021, noon N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 4.9 μg/m3 (21) 24.0
 
Sept. 21, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 4.8 μg/m3 (20) 26.0
 
Sept. 21, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.6 μg/m3 (20) 20.0
 
Sept. 21, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 4.1 μg/m3 (18) 24.0
 
Sept. 21, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 2.4 μg/m3 (10) 30.0
 
Sept. 21, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 2.1 μg/m3 (9) 31.0
 
Sept. 21, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 2.6 μg/m3 (11) 37.0
 
Sept. 21, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 3.3 μg/m3 (14) 38.0
 
Sept. 21, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 5.4 μg/m3 (23) 25.0
 
Sept. 21, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 5.3 μg/m3 (23) 25.0
 
Sept. 21, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 4.7 μg/m3 (20) 28.0
 
Sept. 21, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 4.1 μg/m3 (18) 30.0
 
Sept. 21, 2021, midnight N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 4.2 μg/m3 (18) 34.0
 
Sept. 20, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 4.8 μg/m3 (20) 38.0
 
Sept. 20, 2021, 10 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
 
Sept. 20, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 4.0 μg/m3 (17) 38.0
 
Sept. 20, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 3.6 μg/m3 (16) 39.0
 
Sept. 20, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 4.0 μg/m3 (17) 36.0
 
Sept. 20, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 3.9 μg/m3 (17) 35.0
 
Sept. 20, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 3.5 μg/m3 (15) 32.0
 
Sept. 20, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 4.6 μg/m3 (20) 30.0
 
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 6.4 μg/m3 (27) 31.0
 
Sept. 20, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 7.5 μg/m3 (32) 32.0
 
Sept. 20, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 8.8 μg/m3 (37) 37.0
 
Sept. 20, 2021, noon N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 8.9 μg/m3 (38) 38.0
 
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 9.6 μg/m3 (40) 40.0
 
Sept. 20, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 10.0 μg/m3 (42) 42.0
 
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 8.8 μg/m3 (37) 37.0
 
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 8.7 μg/m3 (37) 39.0
 
Sept. 20, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 8.2 μg/m3 (35) 40.0
 
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 7.9 μg/m3 (33) 42.0
 
Sept. 20, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 7.0 μg/m3 (30) 41.0
 
Sept. 20, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 42.0 ppb (39) N/A N/A 6.0 μg/m3 (25) 39.0
 
Sept. 20, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 4.6 μg/m3 (20) 42.0
 
Sept. 20, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A 7.1 μg/m3 (30) 46.0
 
Sept. 20, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A 6.7 μg/m3 (28) 45.0
 
Sept. 20, 2021, midnight N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 6.3 μg/m3 (27) 42.0
 
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 6.1 μg/m3 (26) 48.0
 
Sept. 19, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A 5.8 μg/m3 (25) 55.0
 
Sept. 19, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A 5.8 μg/m3 (25) 55.0
 
Sept. 19, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A 5.7 μg/m3 (24) 55.0
 
Sept. 19, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A 5.8 μg/m3 (25) 50.0
 
Sept. 19, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A 5.9 μg/m3 (25) 50.0
 
Sept. 19, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 53.0 ppb (50) N/A N/A 6.3 μg/m3 (27) 50.0
 
Sept. 19, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 52.0 ppb (49) N/A N/A 6.1 μg/m3 (26) 49.0
 
Sept. 19, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A N/A 6.4 μg/m3 (27) 47.0
 
Sept. 19, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 6.9 μg/m3 (29) 41.0
 
Sept. 19, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 6.4 μg/m3 (27) 32.0
 
Sept. 19, 2021, noon N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A N/A 4.9 μg/m3 (21) 21.0
 
Sept. 19, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 11.0 ppb (11) N/A N/A 4.4 μg/m3 (19) 19.0
 
Sept. 19, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.3 μg/m3 (18) 18.0
 
Sept. 19, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 4.3 μg/m3 (18) 19.0
 
Sept. 19, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 16.0 ppb (15) N/A N/A 4.3 μg/m3 (18) 18.0
 
Sept. 19, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 21.0 ppb (20) N/A N/A 4.1 μg/m3 (18) 20.0
 
Sept. 19, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 4.3 μg/m3 (18) 21.0
 
Sept. 19, 2021, 5 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
 
Sept. 19, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 18.0 ppb (17) N/A N/A 5.0 μg/m3 (21) 21.0
 
Sept. 19, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 17.0 ppb (16) N/A N/A 5.6 μg/m3 (24) 24.0
 
Sept. 19, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 5.2 μg/m3 (22) 24.0
 
Sept. 19, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 3.3 μg/m3 (14) 25.0
 
Sept. 19, 2021, midnight 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
 
Sept. 18, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 2.8 μg/m3 (12) 31.0
 
Sept. 18, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 2.7 μg/m3 (12) 33.0
 
Sept. 18, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 2.7 μg/m3 (12) 34.0
 
Sept. 18, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 2.7 μg/m3 (12) 35.0
 
Sept. 18, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 2.7 μg/m3 (12) 34.0
 
Sept. 18, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 2.8 μg/m3 (12) 35.0
 
Sept. 18, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 2.9 μg/m3 (13) 35.0
 
Sept. 18, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 3.0 μg/m3 (13) 35.0
 
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 3.2 μg/m3 (14) 35.0
 
Sept. 18, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 3.1 μg/m3 (13) 35.0
 
Sept. 18, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 3.2 μg/m3 (14) 37.0
 
Sept. 18, 2021, noon N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 3.2 μg/m3 (14) 36.0
 
Sept. 18, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 3.5 μg/m3 (15) 32.0
 
Sept. 18, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 4.4 μg/m3 (19) 19.0
 
Sept. 18, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 25.0 ppb (24) N/A N/A 4.4 μg/m3 (19) 24.0
 
Sept. 18, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 4.4 μg/m3 (19) 25.0
 
Sept. 18, 2021, 7 a.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
 
Sept. 18, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 4.8 μg/m3 (20) 29.0
 
Sept. 18, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 4.6 μg/m3 (20) 29.0
 
Sept. 18, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 32.0 ppb (30) N/A N/A 4.8 μg/m3 (20) 30.0
 
Sept. 18, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 5.5 μg/m3 (23) 29.0
 
Sept. 18, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 5.7 μg/m3 (24) 33.0
 
Sept. 18, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 5.7 μg/m3 (24) 38.0
 
Sept. 18, 2021, midnight N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 5.8 μg/m3 (25) 42.0
 
Sept. 17, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A 5.4 μg/m3 (23) 46.0
 
Sept. 17, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A 5.6 μg/m3 (24) 50.0
 
Sept. 17, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A 5.9 μg/m3 (25) 55.0
 
Sept. 17, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A N/A 7.1 μg/m3 (30) 58.0
 
Sept. 17, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 58.0 ppb (61) N/A N/A 8.6 μg/m3 (36) 61.0
 
Sept. 17, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A N/A 9.2 μg/m3 (39) 58.0
 
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 8.7 μg/m3 (37) 61.0
 
Sept. 17, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 55.0 ppb (51) N/A N/A 6.8 μg/m3 (29) 51.0
 
Sept. 17, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 50.0 ppb (47) N/A N/A 5.9 μg/m3 (25) 47.0
 
Sept. 17, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 44.0 ppb (41) N/A N/A 5.7 μg/m3 (24) 41.0
 
Sept. 17, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 34.0 ppb (32) N/A N/A 6.5 μg/m3 (28) 32.0
 
Sept. 17, 2021, noon 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
 
Sept. 17, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 7.3 μg/m3 (31) 31.0
 
Sept. 17, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 7.2 μg/m3 (31) 31.0
 
Sept. 17, 2021, 9 a.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
 
Sept. 17, 2021, 8 a.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. 17, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 5.3 μg/m3 (23) 44.0
 
Sept. 17, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 48.0 ppb (45) N/A N/A 5.7 μg/m3 (24) 45.0
 
Sept. 17, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 49.0 ppb (46) N/A N/A 5.5 μg/m3 (23) 46.0
 
Sept. 17, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A N/A 4.5 μg/m3 (19) 58.0
 
Sept. 17, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 56.0 ppb (55) N/A N/A 4.3 μg/m3 (18) 55.0
 
Sept. 17, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 57.0 ppb (58) N/A N/A 4.4 μg/m3 (19) 58.0
 
Sept. 17, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 61.0 ppb (71) N/A N/A 4.7 μg/m3 (20) 71.0
 
Sept. 17, 2021, midnight N/A N/A N/A N/A N/A N/A 59.0 ppb (65) N/A N/A 4.5 μg/m3 (19) 65.0
 
Sept. 16, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 62.0 ppb (74) N/A N/A 5.0 μg/m3 (21) 74.0
 
Sept. 16, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 60.0 ppb (68) N/A N/A 5.7 μg/m3 (24) 68.0
 
Sept. 16, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 65.0 ppb (84) N/A N/A 5.2 μg/m3 (22) 84.0
 
Sept. 16, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 64.0 ppb (81) N/A N/A 5.1 μg/m3 (22) 81.0
 
Sept. 16, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 54.0 ppb (50) N/A N/A 4.0 μg/m3 (17) 50.0
 
Sept. 16, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 47.0 ppb (44) N/A N/A 3.4 μg/m3 (15) 44.0
 
Sept. 16, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 46.0 ppb (43) N/A N/A 3.2 μg/m3 (14) 43.0
 
Sept. 16, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 41.0 ppb (38) N/A N/A 3.3 μg/m3 (14) 38.0
 
Sept. 16, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 38.0 ppb (36) N/A N/A 3.2 μg/m3 (14) 36.0
 
Sept. 16, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 3.6 μg/m3 (16) 31.0
 
Sept. 16, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 3.9 μg/m3 (17) 26.0
 
Sept. 16, 2021, noon N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 4.5 μg/m3 (19) 22.0
 
Sept. 16, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 5.0 μg/m3 (21) 22.0
 
Sept. 16, 2021, 10 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, 9 a.m. N/A N/A N/A N/A N/A N/A 20.0 ppb (19) N/A N/A 5.8 μg/m3 (25) 25.0
 
Sept. 16, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A 5.8 μg/m3 (25) 25.0
 
Sept. 16, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 5.1 μg/m3 (22) 25.0
 
Sept. 16, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 4.0 μg/m3 (17) 25.0
 
Sept. 16, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 31.0 ppb (29) N/A N/A 3.2 μg/m3 (14) 29.0
 
Sept. 16, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 3.3 μg/m3 (14) 33.0
 
Sept. 16, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 3.3 μg/m3 (14) 31.0
 
Sept. 16, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 3.8 μg/m3 (16) 27.0
 
Sept. 16, 2021, 1 a.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 3.7 μg/m3 (16) 33.0
 
Sept. 16, 2021, midnight N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 4.5 μg/m3 (19) 33.0
 
Sept. 15, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 4.2 μg/m3 (18) 35.0
 
Sept. 15, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 3.9 μg/m3 (17) 37.0
 
Sept. 15, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 4.0 μg/m3 (17) 37.0
 
Sept. 15, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 40.0 ppb (38) N/A N/A 4.3 μg/m3 (18) 38.0
 
Sept. 15, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 4.4 μg/m3 (19) 37.0
 
Sept. 15, 2021, 6 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 4.6 μg/m3 (20) 37.0
 
Sept. 15, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 39.0 ppb (37) N/A N/A 5.1 μg/m3 (22) 37.0
 
Sept. 15, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 35.0 ppb (33) N/A N/A 5.2 μg/m3 (22) 33.0
 
Sept. 15, 2021, 3 p.m. N/A N/A N/A N/A N/A N/A 33.0 ppb (31) N/A N/A 5.1 μg/m3 (22) 31.0
 
Sept. 15, 2021, 2 p.m. N/A N/A N/A N/A N/A N/A 30.0 ppb (28) N/A N/A 5.5 μg/m3 (23) 28.0
 
Sept. 15, 2021, 1 p.m. N/A N/A N/A N/A N/A N/A 22.0 ppb (21) N/A N/A 5.8 μg/m3 (25) 25.0
 
Sept. 15, 2021, noon N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 6.3 μg/m3 (27) 27.0
 
Sept. 15, 2021, 11 a.m. N/A N/A N/A N/A N/A N/A 19.0 ppb (18) N/A N/A 6.5 μg/m3 (28) 28.0
 
Sept. 15, 2021, 10 a.m. N/A N/A N/A N/A N/A N/A N/A N/A N/A 6.3 μg/m3 (27) 27.0
 
Sept. 15, 2021, 9 a.m. N/A N/A N/A N/A N/A N/A 23.0 ppb (22) N/A N/A 5.5 μg/m3 (23) 23.0
 
Sept. 15, 2021, 8 a.m. N/A N/A N/A N/A N/A N/A 24.0 ppb (23) N/A N/A 5.2 μg/m3 (22) 23.0
 
Sept. 15, 2021, 7 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 4.6 μg/m3 (20) 25.0
 
Sept. 15, 2021, 6 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 4.0 μg/m3 (17) 26.0
 
Sept. 15, 2021, 5 a.m. N/A N/A N/A N/A N/A N/A 26.0 ppb (25) N/A N/A 3.6 μg/m3 (16) 25.0
 
Sept. 15, 2021, 4 a.m. N/A N/A N/A N/A N/A N/A 27.0 ppb (25) N/A N/A 3.2 μg/m3 (14) 25.0
 
Sept. 15, 2021, 3 a.m. N/A N/A N/A N/A N/A N/A 28.0 ppb (26) N/A N/A 2.8 μg/m3 (12) 26.0
 
Sept. 15, 2021, 2 a.m. N/A N/A N/A N/A N/A N/A 29.0 ppb (27) N/A N/A 2.3 μg/m3 (10) 27.0
 
Sept. 15, 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
 
Sept. 15, 2021, midnight 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
 
Sept. 14, 2021, 11 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 2.1 μg/m3 (9) 34.0
 
Sept. 14, 2021, 10 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 2.3 μg/m3 (10) 35.0
 
Sept. 14, 2021, 9 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 1.9 μg/m3 (8) 35.0
 
Sept. 14, 2021, 8 p.m. N/A N/A N/A N/A N/A N/A 36.0 ppb (34) N/A N/A 2.1 μg/m3 (9) 34.0
 
Sept. 14, 2021, 7 p.m. N/A N/A N/A N/A N/A N/A 37.0 ppb (35) N/A N/A 2.6 μg/m3 (11) 35.0
 
Sept. 14, 2021, 6 p.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
 
Sept. 14, 2021, 5 p.m. N/A N/A N/A N/A N/A N/A 43.0 ppb (40) N/A N/A 6.6 μg/m3 (28) 40.0
 
Sept. 14, 2021, 4 p.m. N/A N/A N/A N/A N/A N/A 45.0 ppb (42) N/A N/A 8.7 μg/m3 (37) 42.0