{"id":"S85059440","label":"Hazardous substances","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85059440","normalized_label":"hazardous substances","broader":["http://id.loc.gov/authorities/subjects/sh85022963","http://id.loc.gov/authorities/subjects/sh85082065"],"aliases":["Dangerous chemicals","Dangerous goods","Dangerous materials","Dangerous substances","Hazardous chemicals","Hazardous goods","Hazardous materials","Hazmats"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85059440","provider":"lcsh","revision":"ee74ecce02b01eef","taxonomy_revision":"f050b5d4780b1289","title":"Hazardous substances","url":"/topics/S85059440","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"10088067856488351236","address_version":"morton4x16-v1","coordinates":[0,20,18333,49152],"answer_status":"Directory metadata; local answer requires separate source review","truth_status":"Subject descriptor, not a factual answer or a demonstrated knowledge gap","reviewed_answer":null}