Glossary

# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Radiation	United States Environmental Protection Agency, Terms of Environment
Radiation	United Nations, Glossary of Environment Statistics
Radiation Absorbed Dose (RAD)	United Nations, Glossary of Environment Statistics
Radiation Standards	United States Environmental Protection Agency, Terms of Environment
Radioactive Decay	United States Environmental Protection Agency, Terms of Environment
Radioactive Decay	United Nations, Glossary of Environment Statistics
Radioactive Substances	United States Environmental Protection Agency, Terms of Environment
Radioactive Waste	United States Environmental Protection Agency, Office of Compliance and Assurance
Radioactive Waste	United Nations, Glossary of Environment Statistics
Radioecology	United Nations, Glossary of Environment Statistics
Radioisotopes	United States Environmental Protection Agency, Terms of Environment
Radionuclide	United States Environmental Protection Agency, Terms of Environment
Radon	United States Environmental Protection Agency, Office of Compliance and Assurance
Radon	United States Environmental Protection Agency, Terms of Environment
Radon	United Nations, Glossary of Environment Statistics
Rainforest	United Nations, Glossary of Environment Statistics
Rainwater	United Nations, Glossary of Environment Statistics
Range Management	United Nations, Glossary of Environment Statistics
Rare Species	United Nations, Glossary of Environment Statistics
Raw Agricultural Commodity	United States Environmental Protection Agency, Terms of Environment
Raw Sewage	United States Environmental Protection Agency, Terms of Environment
Raw Sewage	United Nations, Glossary of Environment Statistics
Raw Water	United States Environmental Protection Agency, Terms of Environment
Reactivity	United States Environmental Protection Agency, Office of Compliance and Assurance
Reaeration	United States Environmental Protection Agency, Terms of Environment
Real-Time Monitoring	United States Environmental Protection Agency, Terms of Environment
Reasonable Worst Case	United States Environmental Protection Agency, Terms of Environment
Recharge	United States Environmental Protection Agency, Terms of Environment
Recharge	United Nations, Glossary of Environment Statistics
Recharge Area	United States Environmental Protection Agency, Office of Compliance and Assurance
Recharge Area	United Nations, Glossary of Environment Statistics
Reclamation	United States Environmental Protection Agency, Terms of Environment
Recombinant Bacteria	United States Environmental Protection Agency, Terms of Environment
Recombinant DNA	United States Environmental Protection Agency, Terms of Environment
Recycling	United States Environmental Protection Agency, Office of Compliance and Assurance
Recycling	United Nations, Glossary of Environment Statistics
Red Border	United States Environmental Protection Agency, Terms of Environment
Red List of Threatened Animals	United Nations, Glossary of Environment Statistics
Red Tide	United States Environmental Protection Agency, Terms of Environment
Red Tide	United Nations, Glossary of Environment Statistics
Reduction	United States Environmental Protection Agency, Terms of Environment
Reference Dose (RfD)	United States Environmental Protection Agency, Office of Compliance and Assurance
Reforestation	United Nations, Glossary of Environment Statistics
Refuse Reclamation	United States Environmental Protection Agency, Terms of Environment
Refuse Reclamation	United Nations, Glossary of Environment Statistics
Regeneration	United States Environmental Protection Agency, Terms of Environment
Registrant	United States Environmental Protection Agency, Terms of Environment
Registration	United States Environmental Protection Agency, Terms of Environment
Registration Standards	United States Environmental Protection Agency, Terms of Environment
Relative Risk Assessment	United States Environmental Protection Agency, Terms of Environment
Remedial Action	United States Environmental Protection Agency, Office of Compliance and Assurance
Remedial Design	United States Environmental Protection Agency, Terms of Environment
Remedial Investigation	United States Environmental Protection Agency, Terms of Environment
Remedial Response	United States Environmental Protection Agency, Terms of Environment
Remediation	United States Environmental Protection Agency, Terms of Environment
Remote Sensing	United States Environmental Protection Agency, Terms of Environment
Remote Sensing	United Nations, Glossary of Environment Statistics
Renewable Natural Resources	United Nations, Glossary of Environment Statistics
Representative Sample	United States Environmental Protection Agency, Terms of Environment
Reregistration	United States Environmental Protection Agency, Terms of Environment
Reserve Capacity	United States Environmental Protection Agency, Terms of Environment
Reservoir	United States Environmental Protection Agency, Terms of Environment
Reservoir	United Nations, Glossary of Environment Statistics
Residential Waste	United States Environmental Protection Agency, Terms of Environment
Residual	United Nations, Glossary of Environment Statistics
Residual Risk	United States Environmental Protection Agency, Terms of Environment
Residue	United States Environmental Protection Agency, Terms of Environment
Resilience	United Nations, Glossary of Environment Statistics
Resistance	United States Environmental Protection Agency, Terms of Environment
Resistance	United Nations, Glossary of Environment Statistics
Resource Recovery	United States Environmental Protection Agency, Office of Compliance and Assurance
Resource Recovery	United States Environmental Protection Agency, Terms of Environment
Response Action	United States Environmental Protection Agency, Terms of Environment
Restoration	United States Environmental Protection Agency, Terms of Environment
Restoration Costs	United Nations, Glossary of Environment Statistics
Restorative Crops	United Nations, Glossary of Environment Statistics
Restricted Use	United States Environmental Protection Agency, Terms of Environment
Restriction Enzymes	United States Environmental Protection Agency, Terms of Environment
Retrofit	United States Environmental Protection Agency, Terms of Environment
Reverse Osmosis	United States Environmental Protection Agency, Terms of Environment
Rice Weevil	United Nations, Glossary of Environment Statistics
Richter Scale	United Nations, Glossary of Environment Statistics
Riparian	United Nations, Glossary of Environment Statistics
Riparian Habitat	United States Environmental Protection Agency, Terms of Environment
Riparian Habitat	United Nations, Glossary of Environment Statistics
Riparian Rights	United States Environmental Protection Agency, Terms of Environment
Risk	United States Environmental Protection Agency, Office of Compliance and Assurance
Risk	United States Environmental Protection Agency, Terms of Environment
Risk Analysis	United Nations, Glossary of Environment Statistics
Risk Assessment	United States Environmental Protection Agency, Office of Compliance and Assurance
Risk Assessment	United States Environmental Protection Agency, Terms of Environment
Risk Assessment (of pollution)	United Nations, Glossary of Environment Statistics
Risk Characterization	United States Environmental Protection Agency, Terms of Environment
Risk Communication	United States Environmental Protection Agency, Office of Compliance and Assurance
Risk Communication	United States Environmental Protection Agency, Terms of Environment
Risk Estimate	United States Environmental Protection Agency, Terms of Environment
Risk Factor	United States Environmental Protection Agency, Office of Compliance and Assurance
Risk Factor	United States Environmental Protection Agency, Terms of Environment
Risk Management	United States Environmental Protection Agency, Terms of Environment
Risk Management	United Nations, Glossary of Environment Statistics
Risk-Specific Dose	United States Environmental Protection Agency, Terms of Environment
River Basin	United States Environmental Protection Agency, Terms of Environment
River Basin	United Nations, Glossary of Environment Statistics
River-Regulating Reservoir	United Nations, Glossary of Environment Statistics
Rodenticide	United States Environmental Protection Agency, Office of Compliance and Assurance
Rodenticide	United States Environmental Protection Agency, Terms of Environment
Rodenticide	United Nations, Glossary of Environment Statistics
Roentgen	United Nations, Glossary of Environment Statistics
Roentgen Equivalent Man (REM)	United Nations, Glossary of Environment Statistics
Roundwood	United Nations, Glossary of Environment Statistics
Route of Exposure	United States Environmental Protection Agency, Terms of Environment
Royalty	United Nations, Glossary of Environment Statistics
Rubbish	United States Environmental Protection Agency, Terms of Environment
Run-Off	United States Environmental Protection Agency, Terms of Environment
Run-off	United Nations, Glossary of Environment Statistics