| dc.description.abstract | Since the proposal for this project was submitted in early August, 1996, and approved by the
National Association of Photographic Manufacturers (NAPM) for study starting on October 1, 1997,
several changes have been discussed with members of the scientific panel within NAPM and with other
national experts on silver and other heavy metals. Daniel Call had an opportunity to present the
planned research at a meeting of renowned environmental chemists and toxicologists in early
September, 1996, who had convened for a meeting on the development of national criteria for
chemicals in sediment at the EPA Laboratory in Duluth, MN. This meeting was attended by several
EPA-Duluth staff, including Gary Ankley, David Mount, and Russell Erickson; Mary Reilly of
EPA-Washington, D.C.; Richard Swartz of EPA Newport, OR; David Hansen and Walter Berry of
EPA-Narragansett, RI; Dominic DiToro and Paul Paquin of HydroQual; and Herbert Allen of the
University of Delaware. Based upon discussion following this presentation and a subsequent
teleconference call that included Joe Gorsuch of Eastman Kodak Co., Dominic DiToro of HydroQual,
Tom Purcell of NAPM, Dave Mount of EPA-Duluth, and David Hansen and Walter Berry of
EPA-Narragansett, it was concluded that the most useful information to both the silver industry and
the regulatory community would be achieved by modifying the Year I plan from that of the approved
proposal. The major suggested changes were to focus on a single sediment, and to perform a
definitive toxicity test with a single freshwater sediment, rather than to use the four-sediment
matrix as originally proposed; and to increase the chemical analyses and resultant documentation of
silver chemistry in this definitive test. | en_US |
