Since 30 years Dr. Roland Weber does research on persistent organic pollutants (POPs). Since 20 years he works as international consultant mainly for UN Organisations (UNEP, UNIDO, UNDP, Secretariat of the Stockholm Convention) and environmental ministries on the implementation of the Stockholm Convention on POPs and has supported more than 40 countries in their National Implementation Plans for POPs reduction and control. He published more than 180 papers in scientific journals (h-Index 53; more than 13000 citations).