Every day, millions of workers are exposed to chemical substances at the manufacturing stage, not only in the chemical industry but also in the downstream sectors where these substances are used: agriculture, building, trade and woodworking industry, automotive sector, textiles, information technology etc. Workers are among the most vulnerable sectors due to the fact that many are exposed to chemicals both in the production level and as consumers, suffering from poisoning, cancer, respiratory problems and skin allergies, among others. This website on Persistent Organic Pollutants (POPs) is a working tool, mainly for workers and Trade Unions, but also for other stakeholders and major groups. It has been designed to be user-friendly and seeks to inform you and to put you in contact. It increases your awareness about the need for urgent reduction and elimination of POPs; helps you to know what to do; exchanges information and trade union practices on POPs; informs about impacts on health and environment; tells you about alternatives to these dangerous hazards; and puts you in contact with other relevant projects. The clearing house is in English and Spanish; French will be added soon.