Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Relationship between chronic amphibian and fish no observed effect concentrations (NOECs). The solid line delineates the 1:1 relationship. The dashed line delineates a factor of 10, which is the standard EU assessment factor applied to fish chronic toxicity data for plant protection products. The dotted line delineates a factor of 100 (Weltje et al., 2013)
