Research links industrial pollution to health risks in Louisiana

Louisiana communities living near petrochemical plants have long reported health problems believed to be linked to industrial pollution.

By examining Medicaid data, researchers found elevated rates of several health conditions among children and adults living near petrochemical plants and petroleum refineries.

Researchers want to provide evidence that can inform public health research and policy while creating a model other communities can use to study environmental health risks.

For more than two decades, Virginia Tech professor and Louisiana native Barbara Allen has warned of the health risks associated with living near Louisiana's Cancer Alley.

The 85-mile stretch of land along the Mississippi River is home to numerous petrochemical plants and oil refineries that produce plastics, fuels, and other industrial products.

Allen said residents there and in other industrialized areas of Louisiana have long reported patterns of illness they believe are linked to industrial pollution.

A recent analysis of government data now supports those claims.

Allen, professor in the Department of Science, Technology, and Society, co-led a study with researchers from Dillard University and the University of California examining 2017–19 Louisiana Medicaid claims among nonsmokers.

Their project, known as the Collaborative Data Analysis Environmental Health Study , found elevated health risks among children and adults living in areas with higher levels of industrial pollution, including communities in New Orleans, Baton Rouge, the River Parishes, Alexandria, Lake Charles, and Shreveport.

“This data is irrefutable,” Allen said, noting that Medicaid data accounts for about 40 percent of the state’s population.

“The sample size was gigantic.” By analyzing anonymized health records, the team found that children living within five miles of a petrochemical plant or petroleum refinery were more likely to develop learning disabilities, nutritional anemia, and skin conditions such as eczema and dermatitis.

The report adds to ongoing university-led research relevant to veterinary medicine, animal health, and clinical decision-making.

Source university website: Virginia-Maryland College of Veterinary Medicine

https://news.vt.edu/articles/2026/07/the-key-to-successful-research--let-the-community-lead.html