Environment authorities are investigating elevated levels of lead dust near a recycling facility in Tasmania's north but say there is no harm to the community.
The state's Environment Protection Authority and health department are probing the extent of environmental contamination to determine any actions needed after higher-than-normal levels of lead dust were discovered near a Rocherlea recycling plant.
There is no evidence of harm to the community, the authority said.
Nonetheless, the EPA's director Wes Ford issued a notice on Thursday for the facility to stop using dust-producing equipment and to cover any stockpiled material that could blow dust on windy days.
"Results of dust sampling at several locations near the recycling facility have confirmed detectable levels of heavy metals including lead, which has prompted further environmental sampling and the provision of precautionary public health advice," he said.
The investigation was initiated following concerns from the EPA over the facility's large volume of stockpiled controlled waste containing heavy metals and other contaminants, including fine dust that could blow offsite.
Public health and environment protection authorities will meet with local businesses to provide advice on ways to clean surfaces and minimise exposure to the dust.
Director of Public Health Dr Mark Veitch said the organisation was providing precautionary advice while working with the EPA to determine any potential risks to human health.
"Levels of contamination are usually much less several hundred metres away from the source (so) information and precautionary advice are important," he said.
Preliminary dust sampling was taken from several premises near the recycling facility in August and October 2023 with additional sampling done in January.
Investigations into the site are continuing to be closely monitored for the facility's compliance with environmental laws.
Authorities also tested soil samples from Brooks High School in January but found no levels of elevated lead with the school now undergoing extensive cleaning.
Further sampling will be done to assess the extent of the issue in February, the EPA said.
"This additional environmental investigation will be done in close collaboration with (public health) and will further inform assessment of any potential human health risk," Mr Ford said.
"A thorough environmental investigation is likely to take several months."
People and businesses can limit their exposure to lead by regularly cleaning flat surfaces with a damp mop or rag and by closing windows and doors when dusty.
Washing and drying hands before preparing food or smoking will also limit exposure.
