Researchers at the University of Michigan mapped more than 150,000 U.S. public parks and found many are located near hazardous waste sites [1].
This proximity raises concerns about environmental health risks for millions of visitors who use national, state, and local parks for recreation. The study aims to quantify how often public spaces intended for health and leisure overlap with areas of industrial contamination.
The research team utilized a dataset of more than 150,000 parks to analyze their geographical relationship with toxic-chemical facilities [1]. According to the findings, more than 26,000 parks border a toxic Superfund site [3]. Superfund sites are contaminated areas managed by the federal government to clean up hazardous waste.
The scope of the risk extends beyond immediate borders. Data shows that 52.6% of 151,366 mapped parks lie within two miles of a facility that reports toxic chemicals to the Environmental Protection Agency [4]. This suggests that more than half of the analyzed parks are in close proximity to industrial sites known to release hazardous substances.
The mapping effort included a wide range of public lands, from small local playgrounds to large state, and national parks [1]. By visualizing these overlaps, the researchers sought to identify where the public may be unknowingly exposed to environmental hazards during outdoor activities [2].
While the study highlights the prevalence of these sites, the specific level of contamination within the park boundaries varies. The research focuses on proximity as a primary risk factor, mapping the distance between recreation areas and known toxic waste dumps [1].
“More than 26,000 parks border a toxic Superfund site”
The findings suggest a systemic overlap between urban and rural recreation zones and industrial legacy sites. Because many Superfund sites are managed over decades, the proximity of public parks to these areas indicates a long-term failure to isolate hazardous waste from community use zones, potentially necessitating new health screenings or land-use restrictions in affected regions.
