what is the main problem mercury intake causes
Reducing Mercury in Gold Shops with a Mercury Capture System Small-scale gold refining and processing is a major cause of air pollution from mercury. EPA helped design a low-cost mercury capture system that is simple to build and install, using locally available materials, and that reduces mercury emissions by at least 80%.
According to the US Food and Drug Administration (FDA), the risk from mercury by eating fish and shellfish is not a health concern for most people. 1  However, certain seafood might contain levels of mercury that may cause harm to an unborn baby (and especially its brain development and nervous system).