Durango Software has transformed
the technical basis for EPA’s original
Dietary Risk Evaluation System, developed
in the early 1980’s, from a relatively
simple dietary exposure assessment system
requiring a mainframe computer and dedicated
programmers, with slow turn around time,
to a highly refined suite of analytical
tools with extensive computing and reporting
capabilities and practical user interfaces
that run quickly and reliably on today’s
microcomputers by users with no programming
experience
The principal of Durango Software
LLC, Stephen
Petersen, developed the anayltical platforms
for risk assessment by working closely with
Technical Assessment Systems, Inc, then
with Novigen Sciences, Inc (now the Food
and Chemical Practice of Exponent, Inc),
and in conjuction with the U.S. Environmental
Protection Agency (EPA) and numerous other
government and non-government users. DEEM,
the dietary analysis software originally
developed and continually refined by Mr.
Petersen since the early 1980s, has been
used extensively by the EPA Office of Pesticide
Policy for dietary exposure analysis.
DEEM (and its current
version, DEEM-FCID) now serve as
the foundation for Calendex, a
calendar-based analytical tool that provides
the capability for cumulative and aggregate
exposure analysis to chemicals in the diet
and in the residential environment. This
progression of analytical capabilities represents
20 years of continuous development by Mr.
Petersen, and DEEM and Calendex
have become the de facto standard for dietary
and aggregate exposure analysis software
in the U.S.
