The NSW government will move to halve the allowable amount of silica in manufactured stone from 0.1 mg per cubic metre to 0.05 mg, Better Regulation Minister Kevin Anderson will announce on Friday after a series of deaths from the disease silicosis.

The move follows Victorian and Queensland crackdowns on the cutting techniques around the stone and comes as the Greens call for a ban on the use of manufactured stone in NSW altogether. Read more: theaustralian.com.au

NSW Better Regulation Minister Kevin Anderson. Picture: AAP