An environment that lacks oxygen and light, often found in landfills.

A material capable of breaking down into natural components through biological processes. Biodegradability is measured via ASTM D5511.

Vinyl that breaks down into biomass in landfill conditions, such as Hyphyn, which breaks down 90% in 24 months in a proper anaerobic environment.

A substance produced by a living organism that acts as a catalyst to accelerate a biochemical reaction.

Tiny organisms, such as bacteria, that facilitate the breakdown of organic material.