Discrete and Non-discrete Sampling Guidance

Resources

Training Videos

• EPC Guidance for Discrete Samples - In this webinar, you will learn about ATSDR's guidance for using discrete samples to calculate the EPC. You will understand what EPCs are, the types of statistics used to calculate them, and how to select EPCs based on exposure. Additionally, you will learn how to calculate 95UCLs when appropriate.
• ATSDR Exposure Point Concentration Tool - In this webinar, you will learn how to use the exposure point calculations (EPC) tool. The webinar details each step for handling discrete sample data from importing data into the tool, trouble-shooting data errors, calculating the EPC, and interpreting EPC results.
• ATSDR Exposure Point Concentration (EPC) Tool: Common Issues with Data Inputs - This webinar will teach you about the EPC tool, covering each step from importing data and troubleshooting errors to calculating the EPC and interpreting results for discrete sampling data. Additionally, you will learn how to apply the EPC tool for benzo(a)pyrene (BaP) and dioxin samples.
• EPC Guidance for Non-Discrete (Composite) Sampling - Watch this recorded webinar for guidance on how to determine the EPC when using non-discrete (composite) samples.

Guidance

• ATSDR's Discrete Sampling Guidance - Study this document for ATSDR's guidance and methods to estimate EPCs when using environmental data from a discrete sample design.
  • Discrete Sampling Case Study (Questions)
  • Discrete Sampling Case Study (Answers)
• ATSDR's Non-Discrete (Composite) Sampling Guidance - Study this document for ATSDR's guidance and methods to estimate EPCs when using environmental data from non-discrete sample designs, such as composite samples or incremental sample methods.
• Exposure Unit Guidance: Refer to the Exposure Unit Guidance to learn about what exposure units are and how they are important in determining the EPC.