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The U.S. Environmental Protection Agency (EPA) released a new database called ToxRefDB, which allows scientists and the public to search and download thousands of toxicity testing results on hundreds of chemicals. ToxRefDB captures 30 years and $2 billion of testing results. It provides detailed chemical toxicity data in an accessible format. It is a part of ACToR (Aggregated Computational Toxicology Resource), an online data warehouse that collects data from about 500 public sources on tens of thousands of environmentally relevant chemicals (http:// actor.epa.gov/toxrefdb/faces/Home.jsp).