Explore Computer-Based Tools for Green Engineering

On this page you will find EPA computer-based models and tools to help you apply the principles of green engineering.

ChemSTEER

Chemical Screening Tool for Exposures and Environmental Releases (ChemSTEER) is a computer-based software program that can be used to estimate workplace exposures and environmental releases for chemicals manufactured and used in industrial/commercial settings.

With ChemSTEER, you can estimate:

• Occupational inhalation and dermal exposure to a chemical during industrial and commercial manufacturing, processing, and use operations involving the chemical.
• Releases of a chemical to air, water, and land that are associated with industrial and commercial manufacturing, processing, and use of the chemical.

Greenscope

Gauging Reaction Effectiveness for Environmental Sustainability of Chemistries with a multi-Objective Process Evaluator (Greenscope) is a method to model the sustainability of chemical processes. Greenscope uses 139 indicators to evaluate processes in the areas of environment, efficiency (material), energy, and economics.

EPA developed Greenscope to:

• Assess chemical manufacturing processes on a "sustainability scale" from 0 to 100 percent sustainable. 
• Determine how well a chemical process makes use of mass and energy to manufacture a valuable product, how well it meets social and environmental needs, and how it maximizes economic benefits.

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PARIS III

Program for Assisting the Replacement of Industrial Solvents (PARIS III) is a desktop/laptop application that allows users to find mixtures of solvents with specific physical and chemical properties that also have relatively low environmental impacts.

PARIS III helps users find:

• Replacements for solvent mixtures that are currently being used in industrial processes, but have dangerous environmental side effects.
• Solvents with lower environmental impact when designing new industrial processes,
• More benign solvents that can be added to harmful solvents favored by industry to help reduce the harmful environmental impact of their processes.