Assertion: mercury | /r/HasProperty | persistent
Facets:
value: in the environment
type: LOCATION
value: in water
type: LOCATION
value: highly
type: DEGREE
Source sentences:
text: Mercury does not break down in the environment, it is "persistent" and builds up in the food chain (bioaccumulates).
text: Being an element, mercury is persistent – it cannot be broken down to less toxic substances in the environment.
text: Mercury and its compounds are highly persistent in water and the environment and will bioaccumulate or concentrate in the tissues of fish.