Health Day Reporter
Thursday, July 25, 2019 (HealthDay News)-Despite improved air quality since the 1990s, pollution still causes lung disease. heart attack When stroke A new study estimates that it kills more than 30,000 Americans each year.
Researchers investigated the concentration of fine polluted particles known as PM2.5 nationwide from 1999 to 2015. These small particles (one-thirtieth the width of human hair) come from the combustion of automobiles and coal-fired power plants. And other industrial sources.
When these particles are inhaled, they stay in the small blood vessels of lung, And can cause lung disease over time.Particles also find a way to the bloodstream, where they increase the risk heart attack When stroke, The researchers added.
Majid Ezati, Principal Researcher, Dean of the Department of Environmental Health, Imperial College London School of Public Health, said: ..
Researchers have found that PM2.5 levels have declined overall since 1999, but remain high in many regions.
And in 2015, researchers estimated that air pollution still killed nearly 16,000 women and 15,000 men in the United States.
Researchers said death shortened life expectancy for both men and women. Life expectancy declines due to air pollution have been seen in Los Angeles and several southern states, including Alabama, Arkansas, and Oklahoma.
Life expectancy reduction was highest in poorer areas and lowest in wealthy areas.
The acceptable PM2.5 level set by the US Environmental Protection Agency is 12 micrograms (ug / m3) per cubic meter of air.
In 1999, the highest level of PM2.5 was 22.1 ug / m3 in Fresno County, California. By 2015, the highest level was 13.2 ug / m3 in Turea County, California.
The lowest level in 2015 was 2.8 ug / m3 in Apache County, Arizona.
Ezzati and his colleagues used data from the Carnegie Mellon University Air, Climate, and Energy Solutions Center in Pittsburgh, as well as death records from the National Center for Health Statistics. They combined these data to develop a computer model to reach the number of deaths that could result from air pollution.
Of the approximately 42 million deaths in the United States between 1999 and 2015, researchers estimated that 18 million were due to cardiopulmonary disease and were probably related to air quality.They took into account factors such as age, education and poverty smokingHowever, research does not prove that air pollution kills people.
The report was published online in the journal on July 23 PLOS medicine..
Dr. Brian Christman, a spokesman for the American Lung Association and vice chairman of Vanderbilt University School of Medicine in Nashville, Tennessee, does not believe the danger of air pollution is taken seriously enough. Stated.
If many people were killed in a plane crash, he said, “it’s on the cover of a paper and people will march down the street trying to fix it.”
One problem is that they are murderers with slow air pollution, Christman said. “You don’t feel it right away, but obviously we can see the excessive mortality of people,” he said. “People are unaware that this is their healthy and slowly burning out.”
Cristoman is also concerned that current moves to reduce pollution standards could reverse progress so far. “For PM2.5, 41% better than 1999, it was a big win and it saved a lot of lives,” he said.
Further reduction of pollution will save more lives. “The lower the better,” said Christman.
He believes that technology can solve problems without freeing people from work.
“This is America. We can make things, come up with new and innovative ways to make things, and do it in a way that doesn’t endanger the air of the most vulnerable people.” Said Christman.
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Source: Majid Ezzati, Ph.D. , Chair, Environmental Health, School of Public Health, Imperial College London, UK; Brian Christman, MD, Spokesman, American Lung Association, Professor and Vice-Chair, School of Medicine, Vanderbilt University, Nashville, Tennessee. July 23, 2019, PLOS medicine ,online
Dirty air kills 30,000 Americans each year
Source link Dirty air kills 30,000 Americans each year