These three sample attributes describe environmental systems have influences on living organisms.
env_broad_scale
Add terms that identify the major environment type(s) where your sample was collected. Recommend subclasses of biome [ENVO:00000428]. Multiple terms can be separated by one or more pipes e.g. mangrove biome [ENVO:01000181]|estuarine biome [ENVO:01000020]
env_local_scale
Add terms that identify environmental entities having causal influences upon the entity at time of sampling, multiple terms can be separated by pipes, e.g.: shoreline [ENVO:00000486]|intertidal zone [ENVO:00000316]
env_medium
Add terms that identify the material displaced by the entity at time of sampling. Recommend subclasses of environmental material [ENVO:00010483]. Multiple terms can be separated by pipes e.g.: estuarine water [ENVO:01000301]|estuarine mud [ENVO:00002160]