What Does ACR Stand For?
ACR stands for Acute Chronic Toxicity Ratio
The Acute Chronic Toxicity Ratio (ACR) is a metric used in toxicology to compare the relative toxicity of a substance over short-term (acute) exposure versus long-term (chronic) exposure. ACR is calculated by dividing the acute toxicity values by chronic toxicity values, providing insight into the potential risks posed by chemical substances in various environmental and health contexts. This ratio aids regulatory agencies, researchers, and industry professionals in assessing and managing the risks associated with chemical exposures.
Added on 14th April 2008 | Last edited on 16th June 2025 | Edit Acronym