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Chapter 17: Problem 11

Outline the four steps of risk assessment used by the EPA.

Short Answer

Expert verified
The four steps involved in risk assessment as per the EPA are Hazard Identification, Dose-Response Assessment, Exposure Assessment, and Risk Characterization. Each step critically contributes to the understanding and management of potential risks for health and the environment.

Step by step solution

01

Hazard Identification

This first step involves recognizing whether a certain substance or activity may cause harm to people, animals, or the environment. It is conducted by studying available scientific data and research evidence.
02

Dose-Response Assessment

After identifying the potential hazards, this step examines the relationship between different exposure amounts and the possible health impacts. It aims to understand how much of the substance or activities can cause harm.
03

Exposure Assessment

The exposure assessment focuses on determining who or what may be exposed, the duration, frequency, and intensity of exposure to the risk. It involves identifying the characteristics and size of the exposed population, the routes, and the magnitude.
04

Risk Characterization

This is the final step where findings from the first three steps are combined to give a complete picture of the nature and likelihood of the risk from exposure to the substance or activity. This paves the way for informed decision making and effective risk management.

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