Assertion: arsenic | /r/HasProperty | established
Facets:
value: well
type: DEGREE
Source sentences:
text: In an interviewwith NPR's The Salt, Andrew Meharg, author of Arsenic and Rice, made the same point: "The safety thresholds for chronic (inorganic) arsenic in water are well established.
text: In addition, it is well-established fact that chronic exposure to arsenic can lead to arsenicosis, including skin lesions, blackfoot disease, peripheral vascular disease, and cancers.