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#Mercury card skin#

LEVEL C: (YELLOW ZONE): Select when the contaminant and concentration of the contaminant are known and the respiratory protection criteria factors for using Air Purifying Respirators (APR) or Powered Air Purifying Respirators (PAPR) are met.Coveralls, long underwear, a hard hat worn under the chemical-resistant suit, and chemical-resistant disposable boot-covers worn over the chemical-resistant suit are optional items.A hooded chemical-resistant suit that provides protection against CBRN agents.It differs from Level A in that it incorporates a non-encapsulating, splash-protective, chemical-resistant splash suit that provides Level A protection against liquids but is not airtight. This is the minimum protection for workers in danger of exposure to unknown chemical hazards or levels above the IDLH or greater than AEGL-2.

#Mercury card skin#

LEVEL B: (RED ZONE): Select when the highest level of respiratory protection is necessary but a lesser level of skin protection is required.Coveralls, long underwear, and a hard hat worn under the TECP suit are optional items.Chemical-resistant boots with a steel toe and shank.A Totally-Encapsulating Chemical Protective (TECP) suit that provides protection against CBRN agents.A NIOSH-certified CBRN full-face-piece SCBA operated in a pressure-demand mode or a pressure-demand supplied air hose respirator with an auxiliary escape bottle.This is the maximum protection for workers in danger of exposure to unknown chemical hazards or levels above the IDLH or greater than the AEGL-2. LEVEL A: (RED ZONE): Select when the greatest level of skin, respiratory, and eye protection is required.

NOTE: Safe use of protective clothing and equipment requires specific skills developed through training and experience. Level A protection should be used until monitoring results confirm the contaminant and the concentration of the contaminant.

GENERAL INFORMATION: First Responders should use a NIOSH-certified Chemical, Biological, Radiological, Nuclear (CBRN) Self Contained Breathing Apparatus (SCBA) with a Level A protective suit when entering an area with an unknown contaminant or when entering an area where the concentration of the contaminant is unknown.

Ingestion is not an important route of acute exposure as almost no elemental mercury is absorbed through the gastrointestinal tract. Elemental mercury droplets may be absorbed through eye contact. It is only slowly absorbed through the skin, although it may cause skin and eye irritation.

ROUTES OF EXPOSURE: Elemental mercury is toxic primarily through inhalation of mercury vapors.

If mercury is released as a vapor, it is highly unlikely to contaminate agricultural products.

Agricultural: If mercury is released into the air as a liquid spray (aerosol), it has the potential to contaminate agricultural products.

Outdoor Air: Mercury can be released into outdoor air as a liquid spray (aerosol) or as a vapor.

Food: Mercury can be used to contaminate food.

Water: Mercury can be used to contaminate water.

Indoor Air: Mercury can be released into indoor air as a liquid spray (aerosol) or as a vapor.

This card will only address elemental mercury. Most people are exposed to mercury through diet and dental fillings. It has been used clinically, but because of its toxicity this use is diminishing. Mercury is used in many industries, especially the electrical industry, and in many instruments such as thermometers and barometers.

It can be obtained by heating mercury containing ores and condensing the vapors.

DESCRIPTION: Mercury exists naturally in the earth’s crust, and is released by degassing of the earth’s crust, volcanic emissions, and through evaporation.

APPEARANCE: Heavy, shiny, silver-white, mobile liquid metal, at room temperature.