{"ob_id":95748,"names":[],"terms":[{"ob_id":27816,"label":"long_name","value":"Al","vocabulary":""},{"ob_id":64470,"label":"units","value":"","vocabulary":""},{"ob_id":67596,"label":"var_id","value":"8","vocabulary":""},{"ob_id":69295,"label":"standard_name","value":"the concentration of water soluble Al in PM2.5","vocabulary":""}]}