1 Forensic phonetics: the use of phonetics (the science of speech) for forensic (legal) purposes. 2  Speech recognition: the analysis and transcription of recorded speech by a computer system. 3  pronunciation: to learn actual pronunciation of words of various languages.
Mercury vapor is odorless, colorless and very toxic. Even though liquid mercury evaporates slowly, a significant amount of mercury vapor can build up indoors after mercury is spilled, and it can be dangerous to breathe these mercury vapors.
Elemental mercury does cause damage by blocking blood vessels. Mercury's zero oxidation state Hg 0 exists as vapor or as liquid metal, its mercurous state Hg + exists as inorganic salts, and its mercuric state Hg 2+ may form either inorganic salts or organomercury compounds; the three groups vary in effects.ercury poisoning can be prevented (or minimized) by eliminating or reducing exposure to mercury and mercury compounds. To that end, many governments and private groups have made efforts to regulate heavily the use of mercury, or to issue advisories about its use.