Smog obscures the view of Tehran from the Saad Abad mountain north of the Iranian capital in January. Photo: AFP
Smog obscures the view of Tehran from the Saad Abad mountain north of the Iranian capital in January. Photo: AFP

Air pollution kills 7 million a year, says WHO as it tightens guidelines

  • The global health body has issued new air quality recommendations for the first time since 2005, hoping to promote clean energy and prevent deaths and illness
  • But scientists fear some countries will have trouble implementing them, given that much of the world has failed to meet the older, less stringent standards

Smog obscures the view of Tehran from the Saad Abad mountain north of the Iranian capital in January. Photo: AFP
Smog obscures the view of Tehran from the Saad Abad mountain north of the Iranian capital in January. Photo: AFP
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