Prolonged exposure to fine particulate air pollutants (PM2.5) is linked to an increased risk of hospitalization for cardiovascular diseases in older adults. A study led by Harvard researchers found that reducing PM2.5 levels from the current national average to below the World Health Organization’s standard could decrease cardiovascular hospitalizations by 15%. The Environmental Protection Agency’s new standards aim to lower the permissible PM2.5 level, but researchers emphasize that more stringent policies are needed to protect public health. The study, based on Medicare beneficiary data, highlights the urgent need for improved air quality to reduce the burden of cardiovascular disease.
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