Stephanie...I'm old... have a mouth full of mercury amalgum fillings, worked in a chemical plant during college summers in phosphoric acid environment, have had 4 basal cell and one squamous cell carcinomas removed, ran in the DDT fog of the mosquito control trucks as a kid, worked on lawn equipment that sprayed malathion, painted pentachlorophenyl on a lot of wood, ride a go fast motorcycle... to answer your question... not high on my list of worries YMMV