The Planetary Astronomical Symbols The symbol for Mercury represents the head and winged cap of Mercury, god of commerce and communication, surmounting his caduceus (staff). The symbol for Mars represents the shield and spear of the god of war, Mars; it is also the male or masculine symbol.

Health effects of mercury exposure The inhalation of mercury vapour can produce harmful effects on the nervous, digestive and immune systems, lungs and kidneys, and may be fatal. The inorganic salts of mercury are corrosive to the skin, eyes and gastrointestinal tract, and may induce kidney toxicity if ingested.

earth’s crust

Mercury is an element and a metal that is found in air, water, and soil. It exists in three forms that have different properties, usage, and toxicity. The three forms are called elemental (or metallic) mercury, inorganic mercury compounds, and organic mercury compounds. Elemental mercury is liquid at room temperature.

Here are eight foods you should avoid to reduce your exposure to dietary mercury.

• Swordfish. A predatory fish that inhabits several ocean zones, swordfish is one of the highest sources of mercury.
• Shark.
• Tilefish.
• King Mackerel.
• Bigeye Tuna.
• Marlin.
• Orange Roughy.
• Chilean Sea Bass.

The average mercury content in whole eggs ranged from 0.312 to 0.375 µg Hg/egg, and was not significantly different among the tested groups. The Hg content in various egg components (albumen, yolk, eggshell) of the treatment groups during six weeks of the experiment (series II-V) is presented in Table 3.

Acute mercury exposure has given rise to psychotic reactions such as delirium, hallucinations, and suicidal tendency. Occupational exposure has resulted in erethism, with irritability, excitability, excessive shyness, and insomnia as the principal features of a broad-ranging functional disturbance.

Should Dental Amalgam Fillings Be Removed? If your filling is in good condition and your dentist or health care professional says there is no decay beneath the filling, removal of your amalgam filling is not recommended.

How long do fillings last?

White-colored fillings are mercury free fillings. The tooth-colored fillings are made of a composite mixture of glass and plastic. These fillings are not only less toxic than silver amalgam fillings; they’re much more pleasing to the eye.

White fillings are appealing especially because they are the same colour as the teeth and therefor basically unnoticeable. Since they attach right to the tooth, patients with a broken tooth can receive a white filling to restore the tooth’s shape, which may not be an option with silver fillings.

Modern white fillings are much stronger than those from several years ago. They are also bonded to the tooth to effectively seal the margin. Amalgam fillings just plug the hole and do not seal the margins or reinforce teeth. They are, however, very strong and a well-placed amalgam filling can last for several years.