Old factory metals and pesticides found near US parks and schools
A University of Virginia study found that road dust in several eastern US cities contains toxic metals and chemicals from historical industrial activities. These 'legacy contaminants,' including lead and arsenic, persist in urban environments near schools and parks, posing potential health risks.
Why it matters
The findings underscore the long-term environmental impact of past industrial practices on modern urban public health.
Dust lining city streets may seem harmless, but new research suggests it can carry a chemical legacy that has lingered for decades. A study led by researchers at the University of Virginia (UVA) found that road dust collected from seven mid-sized cities across the eastern United States still contains toxic metals linked to historic industrial activity, coal combustion and even metal-containing pesticides and insecticides used decades ago.Published in the journal Environmental Science and Pollution Research, the study analysed road dust from residential streets, public parks, schoolyards and areas near industrial sites. According to the researchers, the findings highlight how past contaminants persist in urban environments, potentially exposing nearby communities through everyday dust.Legacy pollution still lingers in city streetsThe research team collected road dust samples during August 2025 from seven cities: Trenton (New Jersey), Wilmington (Delaware), Richmond (Virginia), Raleigh and Greensboro (North Carolina), Charleston (South Carolina) and Augusta (Georgia).
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