Assertion: aquatic plant's root | /r/CapableOf | absorb lead
Facets:
value: in concentrations
type: LOCATION
value: naturally
type: MANNER
Source sentences:
text: The roots of Eichhornia crassipes naturally absorb pollutants, including lead, mercury, and strontium-90, as well as some organic compounds believed to be carcinogenic, in concentrations 10,000 times that in the surrounding water.