This is why I have forbidden any surface activity.

Therefore, the PFOS-related substances are used as surface-active agents in different applications.

Therefore, perfluorooctane sulfonate-related substances are used as surface-active agents in various applications.

A satellite-data analysis is recommended for understanding synoptic-scale surface activity in the area and for larger-scale events.

1); PFOS is a surface active substance and, as a result, octanol-water partition coefficient measurements are not relevant (Ref.

It is therefore assumed to be transported in the atmosphere predominantly bound to particles, because of its surface-active properties, rather than in a gaseous state.

After the final closure, the backfilling of all emplacement areas in the repository will have been completed and all surface activities ceased.

It is therefore assumed to be transported in the atmosphere predominantly bound to particles, because of its surface-active properties, rather than in a gaseous state.

c. is devoid of active aerodynamic surfaces.

Due to its surface-active properties it has historically been used in a wide variety of applications, typically including fire fighting foams and surface resistance/repellency to oil, water, grease or soil.