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China smog 'is health crisis'

The smog that is affecting much of Northern China has been described as an environmental crisis by the World Health Organisation.

The smog that is affecting much of Northern China has been described as an environmental crisis by the World Health Organisation.

In Beijing on Wednesday, levels of the smallest, most dangerous pollution particles were more than 20 times the internationally recognised safe limit.

The BBC's China correspondent Damian Grammaticas reports.

  • 26 Feb
  • From the section UK