A 28-day PFAS result is not an aquarium water limit

The evidence library is allowed to change in public. This page preserves the revised boundary, why it moved and which guides were affected.

What changed

The chemical-exposure backlog now includes a previously missing study that reports 28-day PFBA and PFBS mortality comparisons in Neocaridina denticulata.

Why it changed

The indexed tables expose chemical-specific NOEC and acute-to-chronic values, but the complete animal allocation, vessel replication, water chemistry, analytical verification, mortality schedule and statistical method remain unavailable behind human verification. The result expands the chronic-exposure map without creating an N. davidi care threshold or product-safety verdict.

Sources reviewed for this change

https://doi.org/10.1016/j.chemosphere.2023.139537

Affected practical guides

A public change is not automatically a retraction. A source may be added, a scope narrowed, a gap refined or an error corrected. The current guide and registry record own the current wording.

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