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Safe levels can damage heart health
A recent Canadian study has revealed that even exposure to moderate levels of air pollution—within environmental standards—raises the risk of heart disease. The study showed that particulate matter and nitrogen oxides are associated with the buildup of plaques and calcium in the coronary arteries, increasing the likelihood of blockages by 13% and elevating the risk of coronary heart disease by 23%. The research followed 11,100 individuals in Toronto from 2012 to 2023, demonstrating that a rise in particulate matter concentration by one microgram per cubic meter correlates with increased calcium deposition in the arteries. The findings underscore the importance of improving air quality to protect cardiovascular health.
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