Some organisms convert fumes from burning coal into organic mercury. Inorganic mercury can also affect the kidneys and brain if it enters the blood stream. Signs and symptoms of inorganic Mercury poisoning vary based on the amount consumed, but may include burning in the stomach and throat vomiting and/or bloody diarrhea. This form of mercury is harmful when swallowed. Inorganic mercury is found in batteries, chemistry labs, and some disinfectants. If this occurs, signs and symptoms of poisoning may include metallic taste, vomiting, difficulty breathing, coughing, and/or swollen, bleeding gums. This form of mercury is generally only harmful when small droplets become airborne and are inhaled. Elemental mercury (also known as liquid mercury or quicksilver) can be found in glass thermometers, electrical switches, dental fillings and fluorescent light bulbs. There are three different forms of mercury that can cause health problems. Mercury poisoning is a condition that occurs in people who are exposed to toxic levels of the element, mercury. Long-term exposure to organic mercury may result in skin numbness or pain tremor inability to walk well blindness double vision memory problems or seizures. This form of mercury is harmful if inhaled, eaten, or placed on the skin for long periods of time.

Symptoms of mercury poisoning in humans