Less than 10% of people in the world breathe clean air


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More than 90% of the world’s population was exposed to unhealthy air in 2017. That same year, air pollution was the 5th highest mortality risk factor globally.

These estimates use a key measure for outdoor (ambient) air pollution called PM2.5—a particulate matter measuring less than 2.5 micrometers in aerodynamic diameter—which is 28 times thinner than one strand of human hair. These particles are capable of penetrating deep into the respiratory tract and can cause severe health damage. According to the World Health Organization’s (WHO) Air Quality Guideline, long-term exposure to a PM2.5 concentration of more than 10 μg/m3 (micrograms per cubic meter) annually puts an individual at higher risk of cardiopulmonary disease and lung cancer.

Read more about air pollution on the World Development Indicators (WDI) website

Vasanthkumar mysoremath
November 27, 2019

At this very second, billions of cigarettes/bidis/cigars/cheroots/hookhas are being lit with burning match sticks. Cigarettes burn for at least 4-5 minutes with blue haze smoke. Secondly millions of trees are being felled/burnt for curing tobacco. Has any study been conducted to assess quantity of dumping of Co2 into atmosphere and what is are the effects on breathing? Ban tobacco cultivation and help farmers to grow alternate crops for ensuring food security to the poor and needy of this global village called earth.

Anne Osharode
November 27, 2019

Keep up the good work. More power to your elbow.