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About 60% of China’s power comes from coal, which has resulted in some of the worst levels of air pollution and particulate matter in the world.

Dr Foraster argues the health impact of noise is "at the level of air pollution" but is much harder to comprehend.

Also on the chopping block are rules that govern vehicle emissions, the largest source of air pollution in the Golden State.

At the community level, it's been powerful for residents, such as those in the Washington DC area, to take the air pollution readings themselves and use these to counter misinformation.

From excessive air pollution to insufficient inspections, state and local environmental regulators have handed down dozens of violations to these waste disposal facilities in the past year alone.