WHO air quality standards could prevent 9.4M deaths annually, study finds

A study in Environment International estimates that meeting WHO air quality guidelines could prevent or delay 9.4 million deaths per year across 136 low- and middle-income countries, plus millions of cardiovascular, respiratory, and neurological disease cases. The finding underscores the health burden of air pollution but is based on modeled data, not direct observation. It may influence public health policy and environmental regulation in affected countries.

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