Thousands of chemical substances exist in the world, but only a small fraction of these have been adequately assessed for their potential toxicity to humans. The Toxicology in the 21st Century program, or Tox21, is a unique collaboration between several federal agencies to develop new ways to rapidly test whether substances adversely affect human health. Substances assayed in Tox21 include a diverse range of products such as: commercial chemicals, pesticides, food additives/contaminants, and medical compounds.
https://ntp.niehs.nih.gov/whatwestudy/tox21/index.html
toxicity, chemical substances,
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