Shelby County Health Department is challenging the integrity of data used in a May community air monitoring report that said South Memphis residents are regularly exposed to unhealthy air pollution. The dispute matters for people living near industrial areas in South Memphis, as well as parents, workers and business owners who rely on monitoring results to judge health risks and press for enforcement.

The department said its review found problems with how the community report's findings were developed and presented. Public records and agency documents show Shelby County already operates official ambient air monitoring and pollution control programs, while federal and state agencies have also studied air toxics in southwest and South Memphis for years.

What the county is disputing about the May report

The report in question, published by Memphis Community Against Pollution, described preliminary findings from community air monitoring in South Memphis. According to the county health department, officials have raised doubts about whether the data and methods behind those conclusions are reliable enough to support the report's claims.

The Shelby County Health Department has raised questions about the integrity of data behind a May community air monitoring project report.

The department's public air monitoring pages show it runs official ambient monitoring and pollution control work in Shelby County. Those programs track regulated pollutants and support enforcement and planning under state and federal rules.

  • The county's ambient air monitoring program collects official air quality data.
  • Its pollution control section oversees local air pollution regulation and permitting.
  • Tennessee's 2025 and 2026 ambient air monitoring network plans also outline the county's formal monitoring network and how sites are managed.

The community report remains publicly available as a preliminary document. Because the county is disputing the underlying data, readers should treat its conclusions as contested rather than settled.

Why South Memphis air quality is under close scrutiny

South Memphis and southwest Memphis have been the focus of air quality concern for years because of nearby industrial activity and long-running environmental justice complaints. Federal, state and academic records show the area has been studied repeatedly for air toxics and localized pollution hot spots.

The U.S. Environmental Protection Agency previously carried out community-scale monitoring work in Memphis through its REACT program, short for Reducing Exposure to Airborne Chemical Toxics. EPA project documents and older Shelby County releases describe monitoring stations installed to measure neighborhood-level exposure concerns.

  • EPA's Memphis REACT materials describe community-scale air toxics monitoring.
  • A Shelby County government release from 2016 announced EPA air monitoring station installations.
  • Academic research published on southwest Memphis identified an air pollution hot spot and examined health risks.

That history helps explain why claims about unhealthy exposure draw close attention. It also explains why disputes over data quality matter: if findings are sound, they may support stronger public action, but if methods are weak, residents may be left with uncertainty instead of clear answers.

What residents can do now

Residents who want official air quality information can check Shelby County Health Department monitoring resources and Tennessee's network planning documents for site locations and program details. People with local concerns about odors, emissions or industrial pollution can also contact the county's pollution control program through its official channels.

For readers who want to understand how we handle official records and verification, see our Source Transparency and Editorial Policy pages.

What remains unresolved

The central issue is not whether South Memphis has a history of air quality concerns. Public records show that it does. The unresolved question is whether the May community report accurately measured current conditions and whether its data can support the claim that residents are being regularly exposed to unhealthy pollution levels.

At this stage, the county health department is disputing the report's integrity, and the community report's conclusions remain under question. Until that dispute is resolved, residents should distinguish between preliminary community monitoring claims and data produced through official monitoring programs.

Primary sources: U.S. Environmental Protection Agency (EPA), Tennessee Department of Environment and Conservation / Shelby County Health Department, Shelby County Health Department, Tennessee Department of Environment and Conservation, Shelby County Health Department, Pollution Control Section, U.S. Environmental Protection Agency (EPA), Shelby County Government, Tennessee Department of Environment and Conservation, Division of Air Pollution Control, University of Memphis Digital Commons. Reported by Source Text Link, Shelby County Health Department, ScienceDirect (Journal of Air Pollution), Memphis Community Against Pollution (MCAP), Chattanooga Times Free Press.