Cristin-resultat-ID: 1989744
Sist endret: 27. januar 2022, 10:12
Resultat
Poster
2021

A Bayesian Network Approach to Probabilistic Risk Assessment of Pesticides in Rice Fields

Bidragsytere:
  • Sophie Mentzel
  • Claudia Martinez
  • Andreu Rico
  • Merete Grung
  • Knut-Erik Tollefsen og
  • S. Jannicke Moe

Presentasjon

Navn på arrangementet: SETAC SciCon 4
Sted: Portland
Dato fra: 14. november 2021
Dato til: 18. november 2021

Arrangør:

Arrangørnavn: Society of Environmental Toxicology and Chemistry

Om resultatet

Poster
Publiseringsår: 2021

Beskrivelse Beskrivelse

Tittel

A Bayesian Network Approach to Probabilistic Risk Assessment of Pesticides in Rice Fields

Sammendrag

Today’s aquatic environment is constantly exposed to various pollutants resulting from anthropogenic activities, such as the use of plant protection products in agricultural practices. The traditional environmental risk assessment is usually based on a calculated risk characterisation such as a quotient representing a ratio of exposure to effects. This deterministic approach uses single values of predicted environmental concentration and predicted no effect concentration to calculate a risk quotient, and accounts for uncertainty by using an assessment factor. Contrary to this deterministic approach, we try to account for variability and uncertainty by integrating probability distributions for exposure and effects that are propagated throughout a Bayesian network model. We focus on the risk assessment of various pesticides in a representative study area and their potential risk to the aquatic ecosystem. This study is carried out for a rice field in Spain (Albufera region) and offers a transparent way of estimating the risk inside a rice paddy and drainage water. While facilitating the communication of estimates and uncertainties, the developed model can also predict the probability of several levels of the risk quotient.

Bidragsytere

Sophie Mentzel

  • Tilknyttet:
    Forfatter
    ved Økotoksikologi ved Norsk institutt for vannforskning

Claudia Martinez

  • Tilknyttet:
    Forfatter

Andreu Rico

  • Tilknyttet:
    Forfatter

Merete Grung

  • Tilknyttet:
    Forfatter
    ved Økotoksikologi ved Norsk institutt for vannforskning

Knut-Erik Tollefsen

  • Tilknyttet:
    Forfatter
    ved Miljøvitenskap og naturforvaltning ved Norges miljø- og biovitenskapelige universitet
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