Science & Technology
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New EPA Citizen Science Quality Assurance Handbook Provides Best Practices for Citizen Science Projects
EPA has created a new Quality Assurance handbook to be used with accompanying templates and examples for citizen science.
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Meet EPA Scientist Susan Yee, Ph.D.
Susan Yee, Ph.D., is an ecologist at EPA's Gulf Ecology Division. She is working on the Puerto Rico Sustainable Communities program, developing decision support tools to evaluate how alternative decisions impact coastal ecosystem goods and services
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Meet EPA Researcher Amber Sample, MS
Amber is an ORISE (Oak Ridge Institute for Science and Education) participant with the Great Lakes National Program office. She is interested in understanding people’s perspective and behaviors toward natural resources and how it relates to protection and
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EPA Researchers Showcase Research Capabilities to Local and National Media
EPA recently hosted members of local and national media on a tour of the unique research complex, where they discussed several topics including PFAS in drinking water, lead service lines, and legionella in premise plumbing.
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EPA Extends Cooperative Research and Development Agreement with New Zealand Company to Advance Air Sensor Technologies
EPA has extended a Cooperative Research and Development Agreement with Aeroqual, a New Zealand-based company specializing in the development of air quality monitoring equipment.
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10 Keys to Digester Success
Describes 10 key activities to ensure that a farm-based digester project is successful
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GCSOLAR
Page on GCSOLAR program, a set of routines that computes direct photolysis rates and half-lives of pollutants in the aquatic environment. Contains download files. New Version July 2018.
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GCSOLAR User's Manual
Manual for GCSOLAR program, which contains a set of routines that compute direct photolysis rates and half-lives of pollutants in the aquatic environment.
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GCSOLAR Release Notes
Release notes for the GCSOLAR software model, a set of routines that computes direct photolysis rates and half-lives of pollutants in the aquatic environment.
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Stakeholder Webinar (Nov. 2022): Natural Gas & Petroleum Systems in the GHG Inventory
2021 GHGI September 2021 Webinar Supporting Materials
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Certification and Compliance for Onroad Vehicles and Engines
Certification and compliance information for passenger cars and trucks (light-duty), commercial trucks and buses (heavy-duty), motorcycles (light-duty).
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Vehicle and Engine Emissions Testing at the National Vehicle and Fuel Emissions Laboratory (NVFEL)
This page provides an overview of the National Vehicle Emissions Testing Laboratory, which is part of EPA's Office of Transportation and Air Quality.
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Port and Goods Movement Emission Inventories
Methodologies for Estimating Port-Related and Goods Movement Mobile Source Emission Inventories
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Compliance Activity Reports for Vehicles and Engines
EPA uses a variety of testing and reporting programs to monitor compliance with emissions regulations.
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CSV Import Template for Heavy-Duty Vehicle GHG Averaging, Banking, and Trading (ABT)
Template for year-end reports under the Heavy-Duty Tractors and Vocational Vehicles greenhouse gas (GHG) ABT.
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System Documentation for Nonroad Compression-Ignition (NRCI) Engines
Use these files for the NRCI module in EV-CIS.
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Manufacturer-Run In-Use Testing Program Data for Heavy-Duty Diesel Engines – Test Order Year 2015
This page provides manufacturer-run in-use testing program data from heavy-duty diesel engine manufacturers in compliance with 40 CFR 86 Subpart T for Test Year 2015.
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STR0600: Independent Surveyor Reporting for Fuels under National Sampling and Testing Oversight Program (NSTOP)
Instructions for completing the STR0600 quarterly report for the NSTOP.
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STR0500: Independent Surveyor Annual Reporting for Fuels
Instructions for completing the STR0500 annual report for the NFSP.
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Guidance to Parties Submitting Round-Robin Data to Support Requests for Approval of Alternate Non-VCSB Test Methods
This guidance is for parties to submit accuracy and precision information for determining compliance for non-VCSB test methods.