Determine the level of risk
ERS impact study: risk calculation
Practical sheet REF: FIC0126 V1
Determine the level of risk
ERS impact study: risk calculation

Author : Ismahane EL BAHLOUL

Publication date: April 10, 2011, Review date: November 13, 2016 | Lire en français

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1. Determine the level of risk

Reminder

This step is based on the results of the previous steps. It compares the toxicological reference values selected with the exposure doses quantified.

Health risk characterization involves calculating, for each substance, the risk index (RI) or hazard quotient (HQ) for threshold toxic effects, and the excess individual risk (EIR) for non-threshold toxic effects.

This stage involves selecting the level of risk and quantifying the risk to human health. It is established for humans.

This is the level of risk defined as acceptable, against which the assessed risk level of the site can be compared.

For human health, we define two types of risk: non-threshold risks (e.g. carcinogenic risk) and threshold risks.

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