AirNow hourly data files, files.airnowtech.org/airnow/2026/, pulled September 9, 2026.
Per AirNow's Hourly Data Fact Sheet, the date and hour in the file name and in each line are GMT and mark the start of the hour. The offset column (-6) is the site's standard-time zone.
22:00 GMT on August 16, 2026 is 5:00 PM Central Daylight Time on August 16.
Site 840471570010 RIVERVIEW, Shelby County Health Department. Lines shown: every Shelby County Health Department line in each file.

== 20260810/HourlyData_2026081022.dat
08/10/26|22:00|471570021|FRAYSER|-6|OZONE|PPB|41|Shelby County Health Department
08/10/26|22:00|471570075|SHELBY FARMS|-6|OZONE|PPB|52|Shelby County Health Department
08/10/26|22:00|471570075|SHELBY FARMS|-6|PM2.5|UG/M3|7.4|Shelby County Health Department
08/10/26|22:00|471571004|ORGILL|-6|OZONE|PPB|43|Shelby County Health Department

== 20260815/HourlyData_2026081518.dat
No Shelby County Health Department lines in this file.

== 20260816/HourlyData_2026081615.dat
No Shelby County Health Department lines in this file.

== 20260816/HourlyData_2026081618.dat
No Shelby County Health Department lines in this file.

== 20260816/HourlyData_2026081621.dat
No Shelby County Health Department lines in this file.

== 20260816/HourlyData_2026081622.dat
08/16/26|22:00|471570021|FRAYSER|-6|OZONE|PPB|36|Shelby County Health Department
08/16/26|22:00|471570075|SHELBY FARMS|-6|OZONE|PPB|43|Shelby County Health Department
08/16/26|22:00|471571004|ORGILL|-6|OZONE|PPB|40|Shelby County Health Department
08/16/26|22:00|840471570010|RIVERVIEW|-6|OZONE|PPB|38|Shelby County Health Department

== 20260816/HourlyData_2026081623.dat
08/16/26|23:00|471570021|FRAYSER|-6|OZONE|PPB|34|Shelby County Health Department
08/16/26|23:00|471570075|SHELBY FARMS|-6|OZONE|PPB|39|Shelby County Health Department
08/16/26|23:00|471571004|ORGILL|-6|OZONE|PPB|37|Shelby County Health Department
08/16/26|23:00|840471570010|RIVERVIEW|-6|OZONE|PPB|37|Shelby County Health Department

== 20260817/HourlyData_2026081700.dat
08/17/26|00:00|471570021|FRAYSER|-6|OZONE|PPB|29|Shelby County Health Department
08/17/26|00:00|471570075|SHELBY FARMS|-6|OZONE|PPB|36|Shelby County Health Department
08/17/26|00:00|471571004|ORGILL|-6|OZONE|PPB|27|Shelby County Health Department
08/17/26|00:00|840471570010|RIVERVIEW|-6|OZONE|PPB|34|Shelby County Health Department

== 20260817/HourlyData_2026081702.dat
08/17/26|02:00|471570021|FRAYSER|-6|OZONE|PPB|24|Shelby County Health Department
08/17/26|02:00|471570075|SHELBY FARMS|-6|OZONE|PPB|31|Shelby County Health Department
08/17/26|02:00|471571004|ORGILL|-6|OZONE|PPB|21|Shelby County Health Department
08/17/26|02:00|840471570010|RIVERVIEW|-6|OZONE|PPB|28|Shelby County Health Department

== 20260817/HourlyData_2026081703.dat
08/17/26|03:00|471570021|FRAYSER|-6|OZONE|PPB|26|Shelby County Health Department
08/17/26|03:00|471570075|SHELBY FARMS|-6|OZONE|PPB|33|Shelby County Health Department
08/17/26|03:00|471571004|ORGILL|-6|OZONE|PPB|26|Shelby County Health Department
08/17/26|03:00|840471570010|RIVERVIEW|-6|OZONE|PPB|24|Shelby County Health Department


== Bracketing the county feed gap (added the same afternoon)
20260814/HourlyData_2026081412.dat: 0 Shelby County Health Department lines
20260814/HourlyData_2026081422.dat: 0 Shelby County Health Department lines
20260815/HourlyData_2026081500.dat: 0 Shelby County Health Department lines
20260815/HourlyData_2026081512.dat: 0 Shelby County Health Department lines
20260816/HourlyData_2026081600.dat: 0 Shelby County Health Department lines