dissipation

https://doi.org/10.1351/goldbook.15646
Reduction in the amount of a pesticide or other compound that has been applied to plants, soil, etc. (used when it is not clear whether this is by mineralization degradation, binding, or leaching).
Source:
PAC, 2007, 79, 1153. (Glossary of terms used in toxicology, 2nd edition (IUPAC Recommendations 2007)) on page 1207 [Terms] [Paper]