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- EPA: Pesticides - A Discussion with the FIFRA Scientific Advisory Panel Regarding the Terrestrial and Aquatic Level II Refined Risk Assessment Models (Version 2.0)- Chapter III. Terrestrial Level II Model | Pesticides: Environmental Effects | US EPA06-15-2009
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- ... allowing more frequent choices for foraging and altering the unimodal feeding pattern to a bimodal feeding pattern would be more representative of avian feeding behavior and may influence exposure estimates ...
- EPA On-line Tools for Site Assessment Calculation01-12-2010
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- Diffusion coefficients , along with other parameters, are required inputs to some environmental ... of a calculator for estimating water and air phase diffusion coefficients are available on these pages.
- EPA On-line Tools for Site Assessment Calculation01-12-2010
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- Diffusion coefficients , along with other parameters, are required inputs to some environmental ... of a calculator for estimating water and air phase diffusion coefficients are available on these pages.
- EPA On-line Tools for Site Assessment Calculation01-12-2010
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- where R is the retardation coefficient, r b is the bulk density, k d is the sorption coefficient, and q is the porosity ...
- EPA On-line Tools for Site Assessment Calculation01-12-2010
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- D air is the free-air diffusion coefficient for the contaminant of concern [cm 2 /sec... The overall effective diffusion coefficient used in determining target soil-gas concentrations only considers diffusion ...
- The Use of Microfiltration and Ultrafiltration Membranes for the Separation, Recovery, and Reuse of Surfactant/Contaminant Solutions02-13-2003
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- ... will be calculated and compared to the other mass transfer coefficients to determine the effect of surfactant on the overall transport ...
- TSCA New Chemicals Program Chemical Categories | New Chemicals Program | US EPA05-01-2009
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- A gavage study, as opposed to an oral feeding study, is recommended because decreased body weight gain, final body ... and/or food consumption have been reported in some oral feeding studies with analogues.
- Final Report | Graft Polymerization as a Route to Control Nanofiltration Membrane Surface Properties to Manage Risk of EPA Candidate Contaminants and Reduce NOM Fouling09-09-2008
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- ... vinyl monomers were screened and the best performing monomers and feed-specific surfaces were identified for six feeds, including NOM.
- EPA On-line Tools for Site Assessment Calculation01-12-2010
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- The estimates of diffusion coefficients are developed from methods presented in Chapter 17: Diffusion Coefficients in Air and Water by William A ...
- 2000 Annual Report | The Use of Microfiltration and Ultrafiltration Membranes for the Separation, Recovery, and Reuse of Surfactant/Contaminant Solutions02-13-2003
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- ... will be calculated and compared to the other mass transfer coefficients to determine the effect of surfactant on the overall transport ...
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