Mercury—a toxic heavy metal that can cause serious and lasting health problems—turns up in many places that you wouldn't expect. It has now been more than two years since the entry into force of the Minamata Convention, a global treaty to protect human health and the environment from the adverse Contact online >>
Mercury—a toxic heavy metal that can cause serious and lasting health problems—turns up in many places that you wouldn''t expect. It has now been more than two years since the entry into force of the Minamata Convention, a global treaty to protect human health and the environment from the adverse effects of mercury. But the production of many mercury-containing products continues around the globe.
"Mercury is to be managed using a circular approach, that aims at protecting human health and the environment from the negative effects of mercury and mercury compounds, says Rossana Silva Repetto, Executive Secretary of the Minamata Convention.
Do you wear gold jewelry? If so, it''s possible that whoever mined the metal that ended up in your ring, earrings or necklace used mercury to separate the gold from the surrounding material. In fact, artisanal and small-scale gold mining represents the single largest demand for mercury worldwide; it''s also the most important contributor of combined mercury emissions into air and water. So whenever you''re buying jewelry, make sure to ask your retailer for products made from certified and sustainable gold.
Want to learn more? Visit the website of the Minamata Convention, check out the 2018 Global Mercury Assessment, and get all the details on the upcoming Conference of the Parties.
Manufacturers around the world use mercury in batteries to prevent the buildup of internal gases that can cause the battery to bulge and leak. In the United States, however, the use of mercury in consumer batteries has declined sharply.Today, the only types of batteries in the U.S. that contain mercury are:
The Mercury-Containing and Rechargeable Battery Management Act of 1996 prohibits the use of mercury in all other types of batteries. With the passage of this act, mercury-free alkaline batteries became the national standard for most types of batteries.
Button cell batteries are miniature batteries in the shape of a coin or button. They are used in small portable electronic devices such as watches, cameras, digital thermometers, calculators and toys. Zinc air, alkaline, and silver oxide button cell batteries contain small amounts of mercury. These batteries do not pose a health risk when in use since the chances of the mercury leaking out are small.
The mercury in button cell batteries can escape into the environment after they have been thrown away and are either incinerated or end up in landfills. Though there are no federal regulations prohibiting throwing button cell batteries in the regular garbage, they should be recycled instead. If they are not recycled, almost all of this mercury in them can end up in waste that gets incinerated or landfilled. If incinerated, the mercury can end up back in the air; if landfilled, it could end up in ground water, and potentially in sources of drinking water.
Mercuric oxide batteries still are produced for military and medical equipment that need a stable current and long life. Federal law requires the manufacturer to have a system for collecting the used batteries and ensuring that the mercury is not released into the environment. Users must use the collection system established by the manufacturer.
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