What does HG represent?
The symbol Hg that mercury is known by comes from its Greek name, hydrargyrum, which means “liquid silver” — to reflect its shiny surface. The element is also known as quicksilver for its mobility.
Does Sweden use metric system?
Sweden adopted the metric system in 1889, after a decision by the parliament in 1875 and a ten year transition period from 1879. Only the Swedish mile, mil, has been preserved, now measuring 10 kilometres (6.2 statute miles).
Why should you never touch HG?
It’s never safe to touch mercury. In its liquid metal form, mercury absorbs instantly into the skin; but it also has an extremely high vapor pressure, so an open container of mercury disperses the metal into the air.
Is mercury element dangerous?
Exposure to mercury – even small amounts – may cause serious health problems, and is a threat to the development of the child in utero and early in life. Mercury may have toxic effects on the nervous, digestive and immune systems, and on lungs, kidneys, skin and eyes.
Is thermometer mercury is poisonous?
The small silvery ball in a mercury thermometer can be dangerous if the glass breaks and the mercury is not cleaned up properly. The mercury will evaporate and can contaminate the surrounding air and become toxic to humans and wildlife. There are several alternatives to mercury thermometers: digital thermometers.
What fish is lowest in mercury?
Most of the popular species of fish and shellfish consumed in the U.S. have been shown to have low mercury levels. Seafood choices that are very low in mercury include: salmon, sardines, pollock, flounders, cod, tilapia, shrimp, oysters, clams, scallops and crab.
Is red snapper low in mercury?
However, some large long-lived fish contain high levels of a form of mercury called methyl mercury that may harm an unborn baby’s developing nervous system….
| SPECIES | MEAN (PPM) | RANGE (PPM) |
|---|---|---|
| Lobster Northern (American) | 0.31 | 0.05-1.31 |
| *Red Snapper | 0.60 | 0.07-1.46 |
| *Trout Freshwater | 0.42 | 1.22 (max) |
| *Trout Seawater | 0.27 | ND-1.19 |
Can you get mercury poisoning from fish?
Mercury poisoning from fish. Methylmercury (organic mercury) poisoning is largely linked to eating seafood, mainly fish. Toxicity from fish has two causes: eating certain types of mercury-containing fish.