Science & Technology
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November 9, 2009 EPA response to RFC: Vinyl Chloride Footprint Estimate Maps
EPA response to the Request for Correction (RFC)
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October 14, 2008 RFC: NPRM proposing to revise the NAAQS for ozone
Request submitted by the National Association of Manufacturers
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Request for Reconsideration: Sampling and Analysis of Asbestos Fibers on Filter Media to Support Exposure Assessments Bench-Scale Testing
Request for correction regarding chrysotile
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EFDC Release Notes
Release notes for the Environmental Fluid Dynamics Code (EFDC) multifunctional surface water modeling system software
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PEST Release Notes
Release notes for the PEST (Parameter ESTimation) software, a model-independent parameter estimation package
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PRZM2 version 1.00
Page on version 1.00 of PRZM, a one-dimensional, finite-difference model that accounts for pesticide and nitrogen fate in the crop root zone. Released October 1992
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PRZM2 version 2.00
Page on version 2.00 of PRZM, a one-dimensional, finite-difference model that accounts for pesticide and nitrogen fate in the crop root zone. Released October 1994
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PRZM3 version 3.12.1
Page on version 3.12.1 of PRZM, a one-dimensional, finite-difference model that accounts for pesticide and nitrogen fate in the crop root zone. August 2003
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PRZM3 Version 3.12.3
PRZM on version 3.12.3 of PRZM, a one-dimensional, finite-difference model that accounts for pesticide and nitrogen fate in the crop root zone. May 2006
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PRZM2 version 1.02
Page on version 1.02 of PRZM, a one-dimensional, finite-difference model that accounts for pesticide and nitrogen fate in the crop root zone. Released February 1993
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PRZM2 version 2.3
Page on version 2.3 of PRZM, a one-dimensional, finite-difference model that accounts for pesticide and nitrogen fate in the crop root zone. Released May 1996
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PRZM3 version 3.12.2
Page on version 3.12.2 of PRZM, a one-dimensional, finite-difference model that accounts for pesticide and nitrogen fate in the crop root zone. Released May 2005
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PRZM3 version 3.12 beta
Page on version 3.12 (beta) of PRZM one-dimensional, finite-difference model that accounts for pesticide and nitrogen fate in the crop root zone. February 1998
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Food Chain Models to Assess Exposures
Information on simulation models & database software designed to determine exposure levels and effects of environmental contaminants on organisms which make up the food chain.
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Resources for Mercury Science and Research
Links to EPA Resources for Mercury Science and Research
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Researchers at Work
Use this page to find EPA researchers by their research area and learn more about them and their work.
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Final National Level Listed Species Biological Evaluation for Clothianidin
EPA has drafted Biological Evaluations (BEs) for two additional pilot chemicals: Clothianidin. The draft BEs are based on interim methods developed in conjunction with FWS, NMFS and USDA in response to the National Academy of Science report.
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EPA Research in Alabama
EPA researchers are working hard to protect communities across the nation. Learn about some of the work EPA researchers are doing in Alabama.