Report on Algal Toxicity Tests on Selected Office of Toxic Substances (OTS) Chemicals

摘要

Algal (Selenastrum capricornutum) assays were performed on 11 chemicals selected from a larger list of candidate chemicals provided by the EPA's Office of Toxic Substances (OTS). Limited chemical analysis of those chemicals that could be tested readily at ERL-C was performed in support of the bioassays. Of the 11 chemicals tested, two (tetraethyl ammonium chloride and butyl mercaptan) were judged non-toxic to the algae by virtue of the calculated EC50 exceeding 1000 mg/L. Three chemicals were extremely toxic (EC50 10 mg/L but 100 mg/L but