The World Health Organization says the negative health impacts of poor air quality kick in at lower levels than it previously thought. The agency is setting a higher bar in its first update to its air quality guidelines in 15 years.
The U.N. health agency released its revised Air Quality Guidelines on Wednesday as climate change is a leading topic at the U.N. General Assembly in New York. Chinese President Xi Jinping announced Tuesday that China will no longer fund power plants fired by coal, which generates several of the pollutants covered by the guidelines.
Air pollution is now comparable to other global health risks like unhealthy diet and tobacco smoking, WHO said. WHO says the main human-generated sources of air pollution can vary geographically but include the energy and transportation sectors, as well as waste dump sites and home cooking and heating.
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