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Air pollution was associated with 3.2 million new diabetes cases in one year



In 2016 alone, the study found that global air pollution contributed to 3.2 million new cases of diabetes (14% of total cases). In the United States, air pollution has been linked to 150,000 new cases of diabetes each year.

"There is an undeniable relationship between diabetes and air pollution and particulate air pollution well below current safety standards," said senior study author Dr. Ziyad Al -An assistant professor of medicine at Washington University. "Many industry lobby groups argue that the current level is too severe and should be relaxed, and evidence shows that the current level is still not sufficiently secure and needs to be tightened."

Particulate or particulate air pollution consists of microscopic dust particles, dirt, smoke and soot mixed with liquid droplets. The finest particles regulated by the EPA are 2.5 microns; To put this in perspective, a strand of human hair is 70 microns or more than 30 times larger.

Anything less than 1

0 microns can not only enter the lungs, but can also enter the bloodstream organs and begin a chronic inflammatory reaction that could lead to a disease.

"Ten or fifteen years ago, we thought that air pollution caused pneumonia, asthma, and bronchitis, and not much more," Dr. Philip Landrigan, Dean of Global Health at the Icahn School of Medicine at Mount Sinai, New York, who was not involved in the study. "We now know that air pollution is a very important cause of heart disease and stroke, contributing to chronic lung disease, lung cancer and chronic kidney disease."

More than 30 million Americans have diabetes, and the numbers worldwide are staggering: 422 million adults were diagnosed with WHO by 2014, compared to 108 million in 1980. Lowest and middle-income countries with the lowest development rates were Least able to cope with the disease.
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While obesity, physical inactivity and genetic risk are the main causes of diabetes, studies have found an association between the disease and the pollution shown. It is believed that air pollution causes inflammation and reduces the ability of the pancreas to control insulin production.

In this study, medical school researchers from the University of Washington at St. Louis collected data on 1.7 million US veteran non-diabetic veterans over a median of 8½ years. After reviewing all medically known causes of diabetes and conducting a series of statistical models, they compared the veteran's diabetes levels to the levels of contamination documented by EPA and NASA.

In veterans who were exposed to air pollution between 5 and 10 micrograms per day cubic meters of air, much less than the EPA-safe level of 12 micrograms, about 21% developed diabetes. Exposure to higher concentrations between 11.9 and 13.6 micrograms caused greater risk: about 24% developed diabetes. Researchers point out that while the 3% increase appears small, it translates into an additional 5,000 to 6,000 new diabetes cases per 100,000 people per year.

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These data were collected along with information from thousands of studies worldwide , used to create a model for assessing diabetes risk across different levels of pollution. Finally, this data was combined with information from the Global Burden of Disease study, which estimates annual cases of diabetes and healthy life years due to environmental pollution to estimate risk worldwide.

Poorer countries with few resources to create and maintain clean air policy, such as India, Afghanistan, Papua New Guinea and Guyana, face a higher risk of diabetes pollution. Wealthy countries such as France, Finland and Iceland had a low risk. The US faced a moderate risk.

"This is a very successful report, very credible, and fits in well with this new understanding of the effects of air pollution on a number of chronic diseases," Landrigan said. "I think the relaxation of clean air standards can be directly linked to the increase in disease and death."

Landrigan is a member of the Lancet Commission on Pollution and Health, which last year published a report responsible for 9 million premature deaths worldwide in 2015. That's 15 times more deaths than all combined wars and violence and three times more than malaria, tuberculosis and AIDS together.

The Commission said that 92% of pollution-related deaths occurred in low-and middle-income countries among minorities and the poor. Children, it is said, are particularly vulnerable, even at low dose.


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