U.S. counties with high concentrations of cattle and hog feedlots see elevated levels of fine particulate air pollution and are often home to residents with limited access to health insurance, according to new research.
Sharon Udasin reports for The Hill.
In short:
- Researchers mapped 15,726 cattle and hog feedlots, finding pollution hotspots in counties with dense animal feeding operations, especially in the Midwest, West, and South.
- PM 2.5 levels were 28% higher near cattle feedlots and 11% higher near hog farms, even after accounting for other pollution sources.
- Many of the most affected communities were socially vulnerable, with lower education rates and less health insurance coverage.
Key quote:
“It lingers in the air and can get really deep into your lungs and create scar tissue.”
— Benjamin Goldstein, assistant professor at the University of Michigan’s School for Environment and Sustainability
Why this matters:
Fine particulate matter, or PM 2.5, is a dangerous air pollutant that can penetrate deep into the lungs and bloodstream, contributing to heart disease, asthma, and premature death. Feedlots generate significant amounts of particulates from manure, dust, and animal activity, and wind can carry the particles far beyond the farms themselves. Communities closest to these sites often face a double burden: more exposure to harmful pollution and fewer resources to treat the resulting illnesses. The fact that these operations are disproportionately located near marginalized and uninsured populations raises environmental justice concerns, linking rural economic dependence on industrial livestock production to persistent public health disparities.
Related: Iowa’s polluted rivers reveal a deep health crisis caused by Big Ag
