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A study from the University of Washington in Seattle reveals that the main cause of significant increases in blood pressure might be traffic-related gasses
A study conducted by the University of Washington in Seattle reveals that the main cause of significant increases in blood pressure is not sitting for hours on end in a congested highway, but rather exposure to traffic-related gasses. Published in the Annals of Internal Medicine in December 2023, the study examined the effects of traffic pollution on cardiovascular health.
In the initial phase of the study, diesel fumes were introduced into a closed room with approximately 40 participants, resulting in a notable increase in blood pressure. Subsequently, the study moved to the streets of Seattle, where three different routes were traversed over a two-hour period amidst heavy traffic. Two of these journeys did not utilize air filters, while the third employed HEPA devices to filter the air.
The results showed that during the unfiltered journeys, increases in blood pressure were similar to those observed in the controlled laboratory environment, reaching nearly 5 millimeters of mercury. Although the study was small with only 13 participants providing usable data, it was funded by the U.S. Environmental Protection Agency and the National Institutes of Health, underscoring its scientific relevance and potential impact on public policy.
Implications and future actions: How to safeguard the population?
The study emphasizes the importance of addressing environmental inequalities exacerbated by highway construction and its toxic effects. It not only underscores the need for stricter environmental policies but also the significance of individual and collective measures to reduce exposure to traffic pollution and its adverse effects on cardiovascular health.
The EPA recommends a series of measures to mitigate vehicle-related air pollution. While some may seem unrealistic, they represent a significant step towards reducing gas emissions and addressing this growing environmental and public health issue:
- Drive Less: If possible, avoiding car use is ideal. Opting for alternatives like bicycles, public transport, or carpooling also contributes significantly.
- Drive Smart: Drive efficiently, perform regular vehicle checks, follow the manufacturer’s maintenance schedule, and use recommended motor oil.
- Choose Fuel-efficient Vehicles: The EPA continues to advocate for more electric vehicles on the road.
- Avoid Idling: Unnecessary idling pollutes the air, wastes fuel, and causes excessive engine wear.
Caring for the environment, as discussed in this article, is also about safeguarding our health. Consistently implementing these measures can make a significant difference, provided there is genuine citizen commitment.
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