{"id":"S85002574","label":"Air--Pollution","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh85002574","normalized_label":"air--pollution","broader":["http://id.loc.gov/authorities/subjects/sh85104530"],"aliases":["Air contaminants","Air pollutants","Air pollution","Air pollution control","Air toxics","Air--Pollution--Control","Airborne pollutants","Atmosphere--Pollution","Contaminants, Air","Control of air pollution","Pollutants, Air","Toxics, Air"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh85002574","provider":"lcsh","revision":"17fe092573300717","taxonomy_revision":"f050b5d4780b1289","title":"Air--Pollution","url":"/topics/S85002574","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"326656108523554308","address_version":"morton4x16-v1","coordinates":[0,20,17445,14336],"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}