{"ob_id":65504,"names":[],"terms":[{"ob_id":34175,"label":"var_id","value":"11","vocabulary":""},{"ob_id":64470,"label":"units","value":"","vocabulary":""},{"ob_id":69270,"label":"standard_name","value":"the concentration of water soluble K in PM2.5","vocabulary":""},{"ob_id":69271,"label":"long_name","value":"K ","vocabulary":""}]}