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  • What is Vermiculite?

    Vermiculite is the mineralogical name given to hydrated laminar magnesium-aluminum-iron silicate that resembles mica in appearance. All vermiculite ores contain a range of other minerals that were formed along with the vermiculite in the rock. Vermiculite ores from some sources have been found to contain asbestos minerals but asbestos is…

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  • Why Doesn't my Output Vehicle Miles Traveled (VMT) Match my Input VMT?

    See More Frequent Questions about MOVES and Related Models . This problem usually occurs when the run specification does not include all possible vehicle and fuel types. MOVES internally allocates the input VMT to each of the source types and fuel types and only reports the VMT for the fuel…

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  • What does MOVES Assume for Future Year Fleet Fuel Efficiency and Emissions?

    See More Frequent Questions about MOVES and Related Models . MOVES reflects all fuel economy and emissions standards that were final as of the model release date. For a list of recent regulations accounted for in the most recent MOVES version, see the see the Overview of EPA’s Motor Vehicle…

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  • Where can I go to learn more?

    PitWatch.org is the online home of the Berkeley Pit Public Education Committee. This volunteer committee educates residents, students, and the public about the environmental management of the Berkeley Pit.  Information includes the geology, hydrology, current events, and ongoing academic research associated with the Berkeley Pit. This committee frequently shares their…

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  • How does MOVES Calculate CO2 and CO2 Equivalent Emissions?

    See More Frequent Questions about MOVES and Related Models . MOVES calculates the energy it takes to operate an onroad vehicle based on energy consumption rates as explained in the technical reports Greenhouse Gas and Energy Consumption Rates for Onroad Vehicles MOVES3 (pdf) (November 2020, EPA-420-R-20-015) and Exhaust Emission Rates…

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  • What are some uses of Vermiculite?

    Vermiculite has been used in various industries for over 80 years. It is used in the construction, agricultural, horticultural and industrial markets. Examples of products that contain vermiculite include potting soil mixes, loose fill insulation, and packing material. For more information, visit the EPA webpage: Protect Your Family from Asbestos-Contaminated…

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  • Why Are There No Emissions for the Early and Late Hours of the Day for Certain Source Types?

    See More Frequent Questions about MOVES and Related Models . MOVES has no start emissions for the certain source types in certain hours of the day. While we know that a non-zero number of these source types do start late at night, our activity data on these trucks and buses…

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  • How can I get involved?

    EPA encourages the public to review our Community Involvement Plan (pdf) (66pp, 6MB) that lays out our specific community involvement activities, and how to become involved at the Site. You can also contact our Community Involvement Coordinator, Mackenzie Meter ( [email protected] ), for site updates and to be added to…

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  • Does a home seller have to disclose to a potential buyer that a home contains asbestos? What about vermiculite?

    Federal law does not require the seller to disclose to a buyer that their home contains asbestos or vermiculite. State or local requirements may require disclosure. Contact your state about such requirements. Other Frequent Questions about Asbestos Learn About Asbestos Asbestos and School Buildings Information for Owners and Managers of…

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  • What Pollutants are Included in “oxides of nitrogen” in MOVES?

    See More Frequent Questions about MOVES and Related Models . The definition of NOx in MOVES (NO + NO2 + HONO) is different than the standard NOx definition of NOx (NO + NO2). This change has been made to correct the exhaust NOx emission in MOVES for potential interference with…

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  • What Drives Seasonal CO Emission Trends?

    See More Frequent Questions about MOVES and Related Models . Once a vehicle’s engine/catalyst reaches operating temperature, the ambient temperature has little effect on the emissions performance of the vehicle. These “running” emission rates in MOVES have no temperature adjustment. However, during summer months at warm temperatures, MOVES assumes extensive…

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  • My attic has vermiculite insulation in it. Am I at risk? Should I take it out?

    If you have vermiculite insulation in your home, you should assume this material may be contaminated with asbestos and be aware of steps you can take to protect yourself and your family from exposure to asbestos. The EPA recommends that vermiculite insulation be left undisturbed. Airborne asbestos fibers present a…

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