{"ob_id":82276,"names":[],"terms":[{"ob_id":20396,"label":"units","value":"1e-12","vocabulary":""},{"ob_id":27923,"label":"long_name","value":"mole_fraction_of_perchloroethene_in_air","vocabulary":""},{"ob_id":27924,"label":"standard_name","value":"mole_fraction_of_perchloroethene_in_air","vocabulary":""},{"ob_id":27925,"label":"var_id","value":"c2cl4","vocabulary":""}]}