How a volcano 4,000 km away raised pollution concerns in Delhi and disrupted flights

A volcano that erupted in Ethiopia, over 4,000 km away, raised pollution concerns in Delhi and disrupted flights in East Africa.

Scientists in India initially monitored the ash cloud to see if winds would bring it towards the city and worsen its air quality. While the main plume missed India, some ash and sulphur dioxide did reach the atmosphere above the country, though not at a level to cause major health concerns.

At the same time, the large ash cloud caused significant flight disruptions in neighbouring countries like Kenya and South Sudan.

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