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AQUATOX PDF Print E-mail
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What is Aquatox?

Aquatox is a computer program initially funded by EPA's Office of Pollution Prevention and Toxics (OPPT). Further development has been undertaken by OPPT and the Office of Science and Technology in the EPA Office of Water Programs. The program is an ecological risk assessment model that has been developed to project the combined environmental fate and effects of pollutants such as nutrients, sediments and organic chemicals in aquatic ecosystems such as streams, ponds, lakes, and reservoirs. A Monte-Carlo simulator is incorporated into Aquatox to facilitate probabalistic risk estimates for aquatic resources.


Green Chemistry Expert System (GCES) PDF Print E-mail
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The Green Chemistry Expert System (GCES) is a stand-alone computer program that can be used to select green chemicals and reactions. Green chemistry is the design of chemical products and processes that reduce or eliminate the use or generation of hazardous substances. This new approach to pollution prevention is the central focus of the U.S. Environmental Protection Agency's (EPA's) Green Chemistry Program.

Watershed Assessment Model (WAM) PDF Print E-mail
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WAM is a tool that has been shown to be useful in the assessment of watershed-related properties. WAM was developed to allow engineers and planners to assess the water quality of both surface water and groundwater based on land use, soils, climate, and other factors. The model simulates the primary physical processes important for watershed hydrologic and pollutant transport. The WAM GIS-based coverages including:

  • Land use,
  • Soils,
  • Topography,
  • Hydrography,
  • Basin and sub-basin boundaries,
  • Point sources and service area coverages,
  • Climate data, and
  • Land use and soils description files.

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