What concept is used to measure the time it takes for half of an initial amount of a chemical to break down in the soil environment?

Answer

Half-life

Persistence in the soil is often measured by its half-life, which is defined as the time required for half of the initial quantity of the chemical to break down or vanish from the soil.

What concept is used to measure the time it takes for half of an initial amount of a chemical to break down in the soil environment?
environmentchemicalpersistencesoil