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Living within 500 feet of dry cleaners raises Parkinson’s risk

8/24/2026

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Summary

Story summary

U.S. researchers found people living within 500 feet of a dry cleaner have a higher Parkinson’s disease risk.
A nationwide analysis of nearly 19 million Medicare records showed a 14 percent greater overall risk.
Risk rose to 23 percent for Parkinson’s cases with gait and balance problems.
Researchers observed a dose-response pattern and linked the association to chlorinated solvents such as TCE and PCE.

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Story summary

U.S. researchers found people living within 500 feet of a dry cleaner have a higher Parkinson’s disease risk.
A nationwide analysis of nearly 19 million Medicare records showed a 14 percent greater overall risk.
Risk rose to 23 percent for Parkinson’s cases with gait and balance problems.
Researchers observed a dose-response pattern and linked the association to chlorinated solvents such as TCE and PCE.