Escape mask, face shield, 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 NIOSH-certified CBRN PAPR with a loose-fitting face-piece, hood, or helmet and a filter or a combination organic vapor, acid gas, and particulate cartridge/filter combination or a continuous flow respirator for air levels greater than AEGL-1.A NIOSH-certified CBRN tight-fitting APR with a canister-type gas mask or CBRN PAPR for air levels greater than AEGL-2.This level is appropriate when decontaminating patient/victims. 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. 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. However, it is unlikely that tetrodotoxin will require this amount of protection.įirst 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. GENERAL INFORMATION: The following are general recommendations for hazardous material exposure.ROUTES OF EXPOSURE: Exposure occurs due to ingestion of fish or other food containing tetrodotoxin.Agricultural: Because tetrodotoxin is unlikely to be disseminated through indoor or outdoor air, it is also unlikely to be disseminated through agricultural products.Outdoor Air: Because the natural source of tetrodotoxin is from living organisms, and manufacturing tetrodotoxin artificially in appreciable quantities is extremely difficult, dissemination through outdoor air is unlikely.Food: Exposure to tetrodotoxin usually occurs through eating improperly prepared fish or possibly through contamination of other food products.Water: Because the natural source of tetrodotoxin is from living organisms, and manufacturing tetrodotoxin artificially in appreciable quantities is extremely difficult, dissemination through water is unlikely.Indoor Air: Because the natural source of tetrodotoxin is from living organisms, and manufacturing tetrodotoxin artificially in appreciable quantities is extremely difficult, dissemination through indoor air is unlikely.Tetrodotoxin interferes with the transmission of signals from nerves to muscles and causes an increasing paralysis of the muscles of the body. Human poisonings occur when the flesh and/or organs of the fish are improperly prepared and eaten. DESCRIPTION: Tetrodotoxin is an extremely potent poison (toxin) found mainly in the liver and sex organs (gonads) of some fish, such as puffer fish, globefish, and toadfish (order Tetraodontiformes) and in some amphibian, octopus, and shellfish species.APPEARANCE: Colorless crystalline solid that darkens when heated above 428☏ (220☌).
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