Emissions Calculators

Recommended Calculators for Collaborative Projects

• EPA's Retrofit Calculator (widely applicable for add-on controls). The Retrofit Calculator is a custom application that will allow anyone to characterize a fleet and calculate the tons of emission reductions a retrofit project will generate.
• EPA’s Biodiesel Calculator (for biodiesel only). Designed to compare diesel fuel oil modified with 0 to 100% biologically derived oils.
  

Other Calculator Information of Interest

• The Diesel Emissions Quantifier (Quantifier) is a tool to help fleet owners, school districts, municipalities, contractors, port authorities, and others estimate cost effectiveness and environmental impact of emission reduction technologies that have been added to vehicles and equipment.  Estimates are made using specific information about a fleet, such as miles driven, fuel mileage, and others.  This site will also help you to prepare and submit your diesel emissions data to EPA.
• National Biodiesel Board emissions calculator. It gives a general idea of emissions reductions as a percentage and in lbs based on the amount of fuel used and the percent BD blend.
• EPA's Biodiesel Emissions Program
• PM Calculator will calculate controlled emissions for filterable PM2.5 and filterable PM10 for point sources only.
• Pace E-CALC'99 Emissions Calculator. Pace is a tool to calculate gasoline emissions such as VOCs, Toxics and NOx based on fuel properties.
• MOBILE6 Vehicle Emission Modeling Software. MOBILE6 is an emission factor model for predicting gram per mile emissions of Hydrocarbons (HC), Carbon Monoxide (CO), Nitrogen Oxides (NOx), Carbon Dioxide (CO2), Particulate Matter (PM), and toxics from cars, trucks, and motorcycles under various conditions.
• EPA's AirData: Access to Air Pollution Data. The AirData Web site gives you access to air pollution data for the entire United States. Want to know the highest ozone level measured in your state last year? Ever wonder where air pollution monitoring sites are located? Are there sources of air pollution in your town? You can find out here!    AirData produces reports and maps of air pollution data based on criteria that you specify.