Research has found that exposure to both air pollution and traffic noise can increase one’s heart attack risk…
Where there’s traffic, there’s noise and air pollution, and neither are good for us.
However, while many studies focus on the negative effects of air pollution, car, train and aircraft, noise also increases the risk of cardiovascular diseases and diabetes.
This is according to a comprehensive study conducted by the Swiss Tropical and Public Health Institute (Swiss TPH).
The study looked at the combined effects of air pollution and transportation noise for heart attack mortality, by considering all deaths that occurred in Switzerland between 2000 and 2008.
Analyses that only included fine particulates (PM2,5) in air pollution suggest that the risk for a heart attack rises by 5,2% per 10-?g/m³ increase in the long-term concentration at home. Studies which also account for road, railway and aircraft noise reveal that the risk for a heart attack attributable to fine particulates, in fact, increases considerably less; 1,9% per 10-?g/m³ increase.
These findings indicate that the negative effects of air pollution may have been overestimated in studies which fail to concurrently consider noise exposure.
“Our study showed that transportation noise increases the risk for a heart attack by 2,0 to 3,4% per 10 decibels increase in the average sound pressure level at home.” said Martin Röösli, Head of the Environmental Exposures and Health Unit at Swiss TPH, and lead author of the published research. “Strikingly, the effects of noise were independent from air pollution exposure.”
Source: Swiss Tropical and Public Health Institute via www.sciencedaily.com
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