If you want to know how to prevent asthma attacks naturally, start by counting the trees in your neighbourhood…
Living in a tree-lined neighbourhood could be a natural way to reduce asthma attacks, even in polluted urban areas.
This is according to a study by the University of Exeter’s medical school.
Researchers looked at more than 65 000 serious asthma attacks over 15 years across 26 000 neighbourhoods in England.
Plant trees to protect against air pollution
If you’re worried about air pollution, in your neighbourhood, do something about it – plant trees.
The study found that people living in polluted urban areas are less likely to be admitted to hospital with asthma when there are lots of trees in their neighbourhood.
In a typical urban area with a high level of background air pollution – around 15 micrograms of fine particulate matter (PM2.5) per cubic metre, or a nitrogen dioxide concentration around 33 micrograms per cubic metre – an extra 300 trees per square kilometre was associated with around 50 fewer emergency asthma cases per 100 000 residents over the 15-year study period.
Related: Why we need more trees in cities
This study suggests that respiratory health can be improved by the expansion of tree cover in very polluted urban neighbourhoods and that planting trees could reduce the effects of air pollution from cars.
Source: University of Exeter via www.sciencedaily.com
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