Nomination Summary for Indium and gallium (N20203)
Nomination Date: 11/12/2001
Nominator: Private Individual
Rationale: The NTP long-term studies of indium phosphide and gallium arsenide demonstrated a high level of pulmonary and systemic toxicity for these two compounds. However, is this toxicity due solely to indium and gallium or is this toxicity unique to these two compounds. If the toxicity is due solely to the individual chemicals, then all uses of these metals should fall under scrutiny. These two metals are entering mass-produced consumer products in forms other than gallium arsenide and indium phosphide.
NTP Principles: not specified