Erin MooganLow levels of cyanide and a mix of heavy metals have been detected in material exposed during upgrade works in Esk St, Invercargill, last week. Progress in Esk St had stopped last week when an unknown substance was discovered among archaeological material and soil excavated from the site. The items were tested and early results had identified the materials contained low levels of cyanide and a mix of heavy metals. "Work has now been stalled as we undertake further investigations and testing but the community can feel confident that the identified contaminants in Esk St do not pose any risk to public health," Ms Moogan said. The works have already disrupted businesses in Esk St, as the street has been shut off to traffic since August.

Source: Otago Daily Times December 10, 2021 03:30 UTC