Flame Retardants: Tris(Chloropropyl) Phosphate and Tris (2-Chloroethyl) Phosphate by United Nations Environment Programme (Paperback, 1999)
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About this product
- DescriptionThis book evaluates the risks to human health and the environment posed by exposure to three flame retardants: tris(1-chloro-2-propyl) phosphate (TCPP), tris(1,3-dichloro-2-propyl) phosphate (TDCPP), and tris(2-chloroethyl) phosphate (TCEP). In view of their many similarities, TCPP and TDCPP are covered together. Data on all three flame retardants are extremely limited and largely confined to studies of environmental levels and adverse effects detected in experimental animals and in vitro test systems. The mograph on TCPP and TDCPP describes manufacturing processes and summarizes current uses. The vast majority of TCPP is used in rigid polyurethane foams, with main applications in insulation for buildings and in refrigerator casings. TDCPP is likewise added as a flame retardant to polyurethane foam and has some additional applications as a flame retardant for n-woven fabrics. For both chemicals, studies show that residues are found infrequently and at low concentrations in food items. For TCPP, traces have been detected in industrial and domestic effluents but t in surface water or drinking-water.Traces of TDCPP have been detected in sewage effluent, river water, seawater, drinking-water, and water sediment, and in fish. In view of the low volatility of both chemicals, the report concludes that human exposure from these sources will be very low and will t present an acute health hazard for the general population. Likewise, adverse effects on the environment are anticipated from the use of either of these flame retardants. Experimental studies of TCPP in laboratory animals demonstrate low to moderate toxicity by the oral, dermal, and inhalation routes. Tests indicate that the chemical is neither a skin r an eye irritant. No studies were available to evaluate reproductive toxicity, immutoxicity, or carcigenic potential. In vitro and in vivo mutagenicity studies produced negative results. Toxicity studies of TDCPP show low to moderate acute toxicity by the oral route and low acute toxicity by the dermal route. The report found evidence of teratogenicity or mutagenicity. A single carcigenicity study found an increased occurrence of several tumours at all exposure levels tested in both male and female rats.In the absence of data on the mechanisms of carcigenic action, the relevance of these findings to humans could t be assessed. The limited studies of occupationally exposed workers were judged inadequate for evaluation. The second mograph evaluates TCEP, a flame retardant with declining uses in the production of liquid polyester resins and in textile back-coating formulations. Traces have been detected in river water, seawater, drinking-water, sediment, fish and shellfish, and a few food items. Experimental studies show low to moderate acute oral toxicity. In repeat dose experiments, TCEP caused adverse effects on the brain, liver and kidneys. The report concludes that TCEP is t an irritant to the eye or skin and is t teratogenic, although some adverse effects on the fertility of male rats and mice have been demonstrated.
- Author(s)United Nations Environment Programme
- PublisherWorld Health Organization
- Date of Publication01/01/1999
- SubjectMedical Nursing & Ancillary Services
- Series TitleEnvironmental Health Criteria Series
- Series Part/Volume NumberNo. 209
- Place of PublicationGeneva
- Country of PublicationSwitzerland
- ImprintWorld Health Organization
- Content Notetables
- Weight199 g
- Width152 mm
- Height229 mm
- Spine6 mm
- Format DetailsTrade paperback (US)
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