UVA, UVB and UVC, the three wavelength groups of ultraviolet light found in
sunlight and in varying amounts in artificial light from such devices as sun
lamps and sun beds, will be reviewed for possible listing in the federal
government's Tenth Annual Report on Carcinogens, National Toxicology Program
officials said today.
Additional substances to be considered for listing, according to the
- The fire retardant chemicals 2,2-bis-bromomethylpropanediol and
2,3-dibromo-1-propanol, as well as vinyl bromide, a chemical used in the making
of flame-retardant synthetic fibers.
- Vinyl fluoride, used in the production of plastics.
- Two classes of dyes used in textiles, leather, plastic, paper, plastics
and rubber: the dimethoxybenzidine dyes and the dimethylbenzidine dyes.
- Styrene-7,8-oxide, used in preparing fragrances and in some epoxy
- IQ, a substance found in cooked meat and fish.
- Beryllium and beryllium compounds, which will be reviewed for possible
upgrading to "known human carcinogens" from the current listing as "reasonably
anticipated to be human carcinogens."
In an announcement in the Federal Register, the National Toxicology
Program requested public comment and data relevant to the substances to be
Dr. C. W. Jameson,
NTP Report on Carcinogens,
PO Box 12233,
Comments received by June 3 can be considered by all the
Two federal government reviews ? the first by scientists of the
National Institute of Environmental Health Sciences, where the NTP is
headquartered, and the second by scientists from a group of federal agencies --
are followed by an outside peer review, held in public.
The Report on Carcinogens is a Congressionally directed listing of
known and reasonably anticipated humPage: 1 2 Related biology news :1
Contact: Bill Grigg
NIH/National Institute of Environmental Health Sciences
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