Learn the Issues
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Region 4 FOIA Repository
Frequently requested FOIA related documentation from region 4.
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RadTown Radiation Exposure Activity 4: Exposure Pathways
Radioactive material, or radionuclides, travel in different ways. This activity asks students to create webs or chains that describe the ways in which we may interact with radiation through the world around us.
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RadTown Radiation Exposure: Vocabulary Activities
Learn more about radon with your students! This page provides background information for teachers and parents. Each RadTown activity for the classroom is Common Core State Standard (CCSS) and Next Generation Science Standard (NGSS) aligned.
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RadTown Classroom Materials: The Radioactive Atom
The RadTown Radioactive Atom activities are designed to help students identify the structure of an atom and describe the structural changes that occur in unstable (radioactive) atoms as they decay.
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National Grants: Past Program Documents
This is a landing page for past National DERA RFPs and their supporting documents
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RadTown Radioactive Atom Activity 5: Half-Life
When a radioactive atom decays, it becomes a different element. The amount of time that it takes one half of the atoms present to decay is called “half-life.” Help your students understand half-life with this free classroom activity.
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San Francisco Bay Delta Watershed
Information about EPA and partner activities to preserve the San Francisco Bay Delta watershed.
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Zero Waste Case Study: Boulder
Zero Waste case study on the contract between Boulder County and a non-profit recycler.
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Basic Information about Carbon Monoxide (CO) Outdoor Air Pollution
Carbon Monoxide is a gas mainly emitted by vehicles or machinery that burn fossil fuels. It is one of the six air pollutants controlled by EPA's National Ambient Air Quality Standards (NAAQS).
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Green Jobs in Your Community
Page provides information on the economic benefits of green infrastructure for businesses, green jobs research, and information on green job training and certification.
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West Coast Collaborative Partner Meetings
The Collaborative conducts public workshops periodically. These workshops are open to anyone that wishes to participate.
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Nitrogen Dioxide Designations - Utah State Recommendation and EPA Response
2010 Nitrogen dioxide (NO2) standards. Utah state recommendation and EPA response.
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Nitrogen Dioxide Designations - Georgia State Recommendation and EPA Response
2010 Nitrogen dioxide (NO2) standards. Georgia state recommendation and EPA response.
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West Coast Collaborative: Partnering to Reduce Diesel Emissions
West Coast Collaborative is a voluntary public-private partnership committed to reducing diesel emissions and advancing clean technologies throughout the western United States.
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Nitrogen Dioxide Designations - Nebraska State Recommendations and EPA Response
2010 Nitrogen dioxide (NO2) standards. Nebraska state recommendation and EPA response.
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Nitrogen Dioxide Designations - Mississippi State Recommendation and EPA Response
2010 Nitrogen dioxide (NO2) standards. Mississippi state recommendation and EPA response.
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Nitrogen Dioxide Designations - Iowa State Recommendations and EPA Response
2010 Nitrogen dioxide (NO2) standards. Iowa state recommendation and EPA response.
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Nitrogen Dioxide Designations - American Samoa (U.S. Territory) State Recommendation and EPA Response
2010 Nitrogen dioxide (NO2) standards. American Samoa (U.S. Territory) state recommendation and EPA response.
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Nitrogen Dioxide Designations - Arizona State Recommendation and EPA Response
2010 Nitrogen dioxide (NO2) standards. Arizona state recommendation and EPA response.
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Nitrogen Dioxide Designations - Northern Mariana Islands (U.S. Territory) State Recommendation and EPA Response
2010 Nitrogen dioxide (NO2) standards. Northern Mariana Islands (U.S. Territory) state recommendation and EPA response.