[{"name":"benzene","longname":"benzene","displayname":"Benzene","cf_standardname":"mole_fraction_of_benzene_in_air","units":"nmol mol-1","chemical_formula":"C6H6","id":1},{"name":"co","longname":"carbon monoxide","displayname":"CO","cf_standardname":"mole_fraction_of_carbon_monoxide_in_air","units":"nmol mol-1","chemical_formula":"CO","id":2},{"name":"no","longname":"nitrogen monoxide","displayname":"NO","cf_standardname":"mole_fraction_of_nitrogen_monoxide_in_air","units":"nmol mol-1","chemical_formula":"NO","id":3},{"name":"pm1","longname":"particles up to 1 µm diameter","displayname":"PM 1","cf_standardname":"mass_concentration_of_pm1_ambient_aerosol_in_air","units":"µg m-3","chemical_formula":"","id":4},{"name":"o3","longname":"ozone","displayname":"Ozone","cf_standardname":"mole_fraction_of_ozone_in_air","units":"nmol mol-1","chemical_formula":"O3","id":5},{"name":"no2","longname":"nitrogen dioxide","displayname":"NO2","cf_standardname":"mole_fraction_of_nitrogen_dioxide_in_air","units":"nmol mol-1","chemical_formula":"NO2","id":6},{"name":"toluene","longname":"toluene","displayname":"Toluene","cf_standardname":"mole_fraction_of_toluene_in_air","units":"nmol mol-1","chemical_formula":"C7H8","id":7},{"name":"so2","longname":"Sulphur dioxide","displayname":"SO2","cf_standardname":"mole_fraction_of_sulfur_dioxide_in_air","units":"nmol mol-1","chemical_formula":"SO2","id":8},{"name":"ethane","longname":"Ethane","displayname":"Ethane","cf_standardname":"mole_fraction_of_ethane_in_air","units":"nmol mol-1","chemical_formula":"C2H6","id":9},{"name":"propane","longname":"Propane","displayname":"Propane","cf_standardname":"mole_fraction_of_propane_in_air","units":"nmol mol-1","chemical_formula":"C3H8","id":10}]