2 Full Days
A Practical Course Focusing on Fundamental Principles, Sources of Data, and Estimation Methods.

Overview
This intensive course will focus on the technical details, as well as the pitfalls, involved in evaluating physical properties, biodegradation data, photolysis and hydrolysis studies, volatilization and adsorption processes, monitoring data, and the use (and misuse) of exposure assessment models. All of these different types of information are brought together so that participants can gain insight on a chemical's behavior in all three environmental compartments (air, water, and soil), their potential for removal from a hazardous waste site, whether they will be removed by a wastewater treatment plant, and how humans or environmental organisms may be exposed. This course will emphasize the evaluation of both experimental and estimated data, indicate where reliable sources of this important information can be located, and provide the participant with an integrated understanding of how environmental fate and exposure assessments can be utilized to determine a compound's environmental behavior and/or treatability. Particular emphasis will be placed on the EPI Suite™ software that was developed at SRC and is now available for free at the EPA's website.

Who Should Attend?
This course is designed for environmental, hazardous waste, and civil/sanitary engineers; environmental chemists; pollution prevention scientists and toxicologists; regulatory specialists; and others who deal with the behavior and effects of chemicals in the environment. Individuals in these professions should have an understanding of how chemicals partition, bind, and degrade in the environment. The diverse types of available data that are relevant to the fate and exposure of chemicals in the environment require individuals to be able to appropriately obtain and evaluate the information to produce a comprehensive environmental fate and exposure assessment.

Course Objectives

• To provide participants with up-to-date information on the sources and means of retrieving or estimating physical/chemical and fate properties
• To develop an understanding of the various degradation and transport processes that are important to an environmental fate and exposure assessment
• To provide the approach and methods to generate an overall fate and exposure assessment
• To provide hands-on experience in developing a fate and exposure assessment with individual chemicals of interest to the participants

Course Outline
Day 1

• Introduction
• Environmental Fate Database
  EPIWIN Estimate Software
  Internet Resources
• Physical Properties
  • Important Properties (Kow, WS, VP, pKa, HL)
  • Sources of Data
  • Estimation Methods
• Transport Processes
  • Evaporation from Soil and Water
    • Importance
    • Sources of Data
    • Estimation Methods
  • Bioconcentration
    • Importance
    • Sources of Data
    • Estimation Methods
  • Soil/Sediment Adsorption
    • Importance
    • Sources of Data
    • Estimation Methods

Day 2

• Degradation Processes
  • Direct and Photosensitized Photolysis
  • Photooxidation in the Atmosphere and Water
  • Hydrolysis
  • Biodegradation in Soil and Aquatic Systems
• Monitoring Data
  • Review of Analytical Methods
  • Sources of Monitoring Data
  • Evaluation of Monitoring Data
• Multimedia Modeling
• Review of Applicability of Each of the EPI Suite™ models
• Case Studies of Individual Chemicals

Instructors
Dr. Phil Howard, Mr. William Meylan, Dr. D. Anthony Gray, and Dr. Jay Tunkel.