Trump admin is trying to prevent the banning of asbestos, and undo the regulations that have been banning it. Trump seems convinced that "it's all fine, actually" and policy is being based around that, but the catalyst seems to be that the Biden era finalized the last ban on the last type of asbestos still being used (which would take up to twelve years to take effect anyway).

It wouldn't surprise me at this point if the Trump administration started rolling back regulations on lead pipes and enforcing minimum cadmium concentrations in tobacco.