Home
Subscribe (free)
About NaturalNews
Contact Us
Write for NaturalNews
Media Info
Advertising Info
Air pollution

Any decrease in air pollution leads to longer lives, study finds

Saturday, December 08, 2012 by: David Gutierrez, staff writer
Tags: air pollution, longevity, study


Most Viewed Articles
https://www.naturalnews.com/038259_air_pollution_longevity_study.html
Delicious
diaspora
Print
Email
Share

(NaturalNews) Even a small decrease in air pollution can lead to significant increases in life expectancy, according to a study conducted by researchers from Harvard University and published in the journal Epidemiology.

"Despite the fact that the U.S. population as a whole is exposed to much lower levels of air pollution than 30 years ago - because of great strides made to reduce people's exposure - it appears that further reductions in air pollution levels would continue to benefit public health," lead author Andrew Correia said.

Numerous studies have shown that improved air quality leads to lower rates of various health problems and increases life expectancy. But because many of these studies were conducted between 1980 and 2000, when U.S. air pollution levels were steadily declining, some researchers have questioned whether the much smaller decreases that have occurred in this century would still have a health benefit.

The new study focused on levels of fine particulate matter, known as PM2.5 (indicating that the particles have diameters of 2.5 micrometers or less). It is well established that both acute and chronic exposure to PM2.5 is associated with a higher risk of cardiovascular and lung disease and death.

The researchers examined PM2.5 levels and life expectancy statistics in 545 counties across the United States between the years 2000 and 2007. In doing so, they expanded on a 2009 New England Journal of Medicine study that had found an association between increased life expectancy and reduced air pollution in 211 urban counties. In addition to examining more counties, the new study made use of more recent data and was able to examine both urban and rural areas.

Pollution control prolongs life

Even after controlling for other risk factors such as smoking prevalence, socioeconomic status and other demographic characteristics, the researchers found that every reduction of 10 micrograms per cubic meter of PM2.5 concentration increased the average life expectancy in a county by 0.35 years. Decreases in air pollution appeared to improve the health of women more than men.

The connection between improved air quality and life expectancy was stronger in more urban and densely populated regions. Although the reasons for this were not clear, the researchers suggested that perhaps particulate matter in urban areas has a different composition than that in rural areas.

The study strongly demonstrates that continuing to decrease levels of air pollution has a measurable and significant benefit for human health and life span, the researchers said.

"Since the 1970s, enactment of increasingly stringent air quality controls has led to improvements in ambient air quality in the United States at costs that the U.S. Environmental Protection Agency has estimated as high as $25 billion per year," senior author Francesca Dominici said. "However, the extent to which more recent regulatory actions have benefited public health [had remained] in question."

"This study provides strong and compelling evidence that continuing to reduce ambient levels of PM2.5 prolongs life."

The study was funded by the Environmental Protection Agency, the Harvard-NIEHS Center for Environmental Health, NIEHS, MRC Strategic Grant and the Health Effects Institute.

Sources:

http://www.hsph.harvard.edu

Join the Health Ranger's FREE email newsletter
Get breaking news alerts on GMOs, fluoride, superfoods, natural cures and more...
Your privacy is protected. Unsubscribe at any time. | Learn more...

comments powered by Disqus


Natural News Wire (Sponsored Content)

Science.News
Science News & Studies
Medicine.News
Medicine News and Information
Food.News
Food News & Studies
Health.News
Health News & Studies
Herbs.News
Herbs News & Information
Pollution.News
Pollution News & Studies
Cancer.News
Cancer News & Studies
Climate.News
Climate News & Studies
Survival.News
Survival News & Information
Gear.News
Gear News & Information
Glitch.News
News covering technology, stocks, hackers, and more

Get alerted on heavy metals and pesticide test results for foods and supplements

Natural News is about to begin releasing lab test results for off-the-shelf food, supplement and pet food products, covering heavy metals, nutritive minerals, pesticides and herbicides. These details will be released exclusively to Natural News email newsletter subscribers (FREE) and will NOT be publicly posted on the website. To be alerted, join our free email newsletter now, and watch for lab test results in the weeks ahead.

Enter your email address below to subscribe to our email announcement list (but don't use gmail). Your privacy is protected and you can unsubscribe at any time. If you don't join our email list, you may never see our valuable content again via Facebook, Google or YouTube. CENSORSHIP has now reached EXTREME levels across the 'net. The truth is being suffocated. Subscribe now if you want to escape the delusional bubble of false reality being pushed by Google and Facebook.

Once you click subscribe, we will send you an email asking you to confirm your free subscription.