New Delhi: A public health emergency has been declared in the Delhi-NCR region and all construction activities have been banned till November 5, Supreme Court mandated panel of Environment Pollution (Prevention and Control) Authority ordered.

As pollution level in the region entered the "severe plus" category, the EPCA on Friday also banned the bursting of crackers during the winter season.

The air quality in Delhi-NCR deteriorated further Thursday night and is now at the severe plus level, EPCA chairperson Bhure Lal said in a letter to the chief secretaries of Uttar Pradesh, Haryana and Delhi.

"We have to take this as a public health emergency as air pollution will have adverse health impact on all, particularly our children," he said in the letter.

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