Updated June 14, 2011 With the addition of eight more
substances, the National Institutes of Health's (NIH) Report on
Carcinogens now lists 240 chemicals and biological agents that
may or definitely cause an increased risk of cancer. The NIH's
Report on Carcinogens, is required by Congress as a key function
of the National Toxicology Program (NTP). The report identifies
"agents, substances, mixtures, and exposure circumstances that
are known or reasonably anticipated to cause cancer in humans."
New listings in the Report on Carcinogens for 2011 included two
substances known to cause cancer and 6 substances reasonably
anticipated to cause cancer. Known to Cause Cancer Added to the
latest Report on Carcinogens as substances now known to cause
cancer in humans were formaldehyde and botanical products
containing aristolochic acids. Formaldehyde: Aside from being
the source of controversy in those mobile homesFEMA provided
after Hurricane Katrina, formaldehyde is a "colorless,
flammable, strong-smelling chemical t