Notre Dame cathedral sealed off for huge lead decontamination operation

Area around site sealed off for 10 days to remove hazardous dust that has settled since fire in April

Clean-up workers have begun a huge "decontamination" operation around Notre Dame Cathedral after a health scare over lead particles from the fire.

It is the second attempt to remove hazardous dust spread across a swath of central Paris that settled on homes, schools and on the ground after the blaze in April that destroyed the cathedral's roof and spire.