Assertion: lead's use | /r/CapableOf | contaminate thousands of acres
Facets:
value: across the united states
type: LOCATION
value: schooley et al.
type: OTHER
Source sentences:
text: Widespread use of lead arsenate and frequent applications at increasing rates over time contributed to lead and arsenic to accumulate in topsoil, contaminating thousands of acres across the United States" [Schooley et al. 2008; Peryea 1998].