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Polluted air shortens life expectancy.

April 14, 2009

US researchers have found to what extent polluted city air effects the average life expectancy.

Dr Douglas Dockery

Dr Douglas Dockery

The project conducted  followed 51 cities in the US and recorded the change of air quality.

The results found life expectancy has increased by two and half years due to factors such as improved healthcare, diet, and lifestyle in general.

Researchers believe 15% of the increased life expectancy is due to cleaner air.

Head of the Environmental Health Department at Harvard School, Dr  Douglas Dockery believes 5 months of the increased 2 and half year life expectancy is due to cleaner air.

 

Dr Dockery makes a comparison to the results found in US cities and the expected results found in heavily polluted cities such as Beijing and Mexico City, “the life expectancy impact would be far greater” he said.

As a result of such research, Dr Dockery hopes this will prompt governments to consider working towards making cleaner air in the next 25 years.

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