{"ob_id":65510,"names":[],"terms":[{"ob_id":35929,"label":"long_name","value":"Co","vocabulary":""},{"ob_id":64470,"label":"units","value":"","vocabulary":""},{"ob_id":67836,"label":"var_id","value":"17","vocabulary":""},{"ob_id":69278,"label":"standard_name","value":"the concentration of water soluble Co in PM2.5","vocabulary":""}]}