{"thcode":2,"term":{"code":2271,"name":"solid industrial waste material","parent":1199,"scope":"Waste solid materials produced by industrial processing of earth materials, not simply material extracted in the search for ores."},"uf":[],"bt":[{"code":1199,"name":"unconsolidated deposits","parent":1005,"scope":"Loosely bound sediments such as sand, gravel, and silt which tend to accumulate in low areas or valleys."},{"code":1005,"name":"rocks and deposits","parent":287,"scope":"Solid masses that make up the earth's crust as well as accumulations of materials. Use for major rock types and unconsolidated deposits. For deposits of economic value, see related terms."},{"code":287,"name":"earth characteristics","parent":1174,"scope":"The measurable, definable properties and features of the earth."},{"code":1174,"name":"topics","parent":1,"scope":"Themes, subjects, and concerns for which USGS information resources are relevant."},{"code":1,"name":"Categories","parent":null,"scope":"Thematic terms for categorizing information resources.  This thesaurus is intended to support finding and understanding scientific information."}],"nt":[{"code":2273,"name":"coal ash","parent":2271,"scope":"Solid waste material remaining from the burning of coal."},{"code":2272,"name":"slag","parent":2271,"scope":"Solid waste material produced by the industrial processing of ore materials."}],"rt":[{"code":1723,"name":"industrial pollution","parent":769,"scope":"Introduction of harmful substances into the environment by manufacturing, power generation, mining, or material processing."},{"code":1293,"name":"waste treatment and disposal","parent":548,"scope":"The chemical and physical methods to recycle or dispose of materials which, without treatment, are deemed to have no further value or are too contaminated to be used."}]}