Health Effects of Exposures to Mercury
Mercury is a neurotoxinHelpneurotoxinA substance that is known or suspected to be poisonous to nerve tissue.. How someone's health may be affected by an exposure to mercury depends on a number of factors:
the form of mercury (for example, methylmercury or elemental (metallic) mercury)
the amount of mercury in the exposure;
the age of the person exposed (the fetus is the most vulnerable)
how long the exposure lasts
how the person is exposed -- breathing, eating, skin contact, etc.
the health of the person exposed.
https://www.epa.gov/mercury/health-effects-exposures-mercury
