On July 27, 2010, EPA released the TRI RY09 Preliminary Dataset, accessible through downloadable files as well as tools such as TRI Explorer (with limited capabilities) and Envirofacts. The preliminary dataset includes 83% of the total data collected for RY09; EPA plans to update the dataset in August and September as it processes additional 2009 facility submissions. The downloadable data files are provided in three groups: 1) basic data files, 2) basic plus data files, and 3) dioxin and dioxin-like compounds and toxic equivalent (TEQ) data. EPA encourages data users to read all of the accompanying information to understand the limitations of using and analyzing the data before the dataset is complete.
Additional information regarding the RY09 Preliminary Dataset, including access to the downloadable files, is available at the following URL:
www.epa.gov/tri/tridata/preliminarydataset
