What does the soil half-life ($ ext{DT}_{50}$) specifically represent?

Answer

The time required for exactly half of the original chemical amount to break down or disappear.

The standardized scientific measurement $ ext{DT}_{50}$ defines the precise duration necessary for exactly fifty percent of the initial quantity of a substance to decompose or vanish from the soil structure.

What does the soil half-life ($	ext{DT}_{50}$) specifically represent?
durationsoiltoxincontaminant