The latest State of Global Air report, published by US-based research organisation Health Effects Institute (HEI) on Wednesday, covers more than 7,000 cities around the world. It is the first such study to focus only on urban air pollution.
The world’s biggest cities are suffering from extremely hazardous levels of toxic air, which has killed more than 1.7 million people.
State of air report: 1.7 million deaths in cities linked to air pollution with Delhi ranked worst in world – report | The Independent
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