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methylmercury

methylmercury

1 9.8
A very poisonous form of mercury that builds up in fish and harms people who eat the fish
  • noun
  • /ˌmɛθəlˈmɜrkjʊri/
  • Specialized
: metilmercurio
  • Typically, higher methylmercury levels in fish tissue are found in more acidic waters.
  • methylmercury exposure
  • methylmercury concentration
  • methylmercury poisoning

Examples

  • Forty-one states now advise anglers to limit wild fish consumption because of contamination by methylmercury.

    Academic text (2002)
  • Pregnant women are often advised to avoid fish high in methylmercury to protect their unborn children.

  • Nearly all human exposures to one type, methylmercury, come from fish.

    Blog text (7)
  • A study of children in the Seychelles Islands found no association between methylmercury and a broad variety of health effects.

    Academic text (2002)
  • Marine mammals are exposed to methylmercury through their prey (particularly fish).

    Academic text (2000)
  • The first documented widespread human methylmercury poisoning occurred in Minamata, Japan, between 1953 and 1960.

    Blog text (19)
  • A study published in Environmental Science & Technology concludes that methylmercury principally accumulates in phytoplankton as it takes up uncharged chloride complexes.

    Academic text (2002)
  • Eating large amounts of fish contaminated with methylmercury can expose people to serious health risks.

  • Studies show that methylmercury accumulates in fish and poses a danger to those who consume them.

Synonyms

organomercurial
vsmethylmercury
  • Specialized
1 9.9

A substance with mercury joined to organic parts, like some pesticides

is a highly toxic form that accumulates in fish and harms people if eaten

How Toxic

methylmercury
  • Specialized
1 9.8
nontoxicity
1 5.9

Surface Forms

methylmercury singular

Morphology

methylmercury = methyl + mercury (semi-transparent) = methyl + mercury

The compound transparently combines the chemical group 'methyl' and the element 'mercury', but 'methyl' is specialized and the toxic, bioaccumulative nature of methylmercury is specialized knowledge not obvious to a B1 learner.

Etymology

Methylmercury is made of two parts: methyl, a 'small carbon-and-hydrogen piece' used in chemistry, and mercury, the 'liquid metal'. So methylmercury is literally a form of mercury with that small part attached, which is why it can build up in fish and be very poisonous.