From Australian Oceans Data Network
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The No-Significant-Effect Concentration

Created 23/06/2025

Updated 23/06/2025

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An alternative toxicity estimate to the no-effect concentration (NEC) has been developed - the no-significant-effect concentration (NSEC). The no-effect concentration (NEC) is the preferred threshold metric for single-species toxicity tests applied to derive safe concentration thresholds for contaminants in the environment for use in species sensitivity distributions, but is only suitable when concentration–response (C-R) data exhibit a threshold response. The no-significant-effect concentration (NSEC) is better suited to C-R data for which the response is a monotonically decreasing function of concentration and no threshold effects are evident. A flexible, three-parameter sigmoidal function is used to describe the C-R relationship and detail both Bayesian and frequentist approaches to estimation and inference for the NSEC.

Files and APIs

Additional Info

Field Value
Title The No-Significant-Effect Concentration
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/fe945bad-f8e3-446a-916a-d6430f4f746f
Contact Point
Australian Ocean Data Network
reception@aims.gov.au
Reference Period 10/05/2024
Geospatial Coverage Australia
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "The No-Significant-Effect Concentration". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/the-no-significant-effect-concentration