52 MILIEU | MT 5206 milieubeleid | BT1 economisch instrument voor het milieu | BT2 milieubeleid | RT emissiehandel [5206] | emissierechten [5206] | industriële verontreiniging [5216]
52 ENVIRONMENT | MT 5206 environmental policy | BT1 economic instrument for the environment | BT2 environmental policy | RT emission allowance [5206] | emission trading [5206] | industrial pollution [5216]