Comparison of model-averaging and single-distribution approaches to estimating species sensitivity distributions and hazardous concentrations for 5% of species.

ABSTRACT: Estimation of species sensitivity distributions (SSDs) and hazardous concentrations for 5% of species (HC5s) by fitting a statistical distribution to toxicity data for multiple species is essential in ecological risk assessment of chemicals. Given the challenge of selecting the appropriate statistical distribution in SSD estimation, a model-averaging approach that involves fitting multiple statistical distributions and using weighted estimates to derive HC5s is appealing. However, the effectiveness of this approach compared with SSDs based on a single statistical distribution (i.e., single-distribution approach) has not been thoroughly examined. We aimed to compare the model-averaging approach with the single-distribution approach based on log-normal, log-logistic, Burr type III, Weibull,

SUBMITTER: Iwasaki Y 

PROVIDER: S-EPMC11864202 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature