The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoints of the principal investigator and may not represent the views and policies of ORD and EPA. Conclusions drawn by the principal investigators have not been reviewed by the Agency.
![[logo] US EPA](https://webarchive.library.unt.edu/eot2008/20090825012756im_/http://www.epa.gov/epafiles/images/logo_epaseal.gif){kind=logo}