Persistent organic pollutants (POPs)

Persistent organic pollutants (POPs) are organic chemical substances that are recognized as a serious, global threat to human health and to ecosystems.

In order to protect human health and the environment from POPs, UN Environment Chemicals and Health Branch through a variety of activities, supports parties in the implementation of their obligations under the Basel, Rotterdam and Stockholm Conventions

The Chemicals and Health Branch supports a range of projects, including: POPs global monitoringPCB a forgotten legacy?Alternatives to DDT, POPs pesticides, POPs destruction technologiesNational implementation plansUnintentional POPs, and Scientific assessments

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Polychlorinated Biphenyls - A Forgotten Legacy?

PCB, or polychlorinated biphenyls, are chemicals that have dangerous effects on the environment and human health. PCB have been used in many industrial applications such as transformers and capacitors. Although…

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Building sustainable, long-term capacity

The Chemicals and Health Branch supports a range of activities related to the monitoring and management of POPs. These activities include:


To support the activities on the monitoring and management of POPs, we conducted POPS assessment in close cooperation with academia, NGOs/IGOs on various topics. Learn more.

Contact us

Science and Knowledge Unit,
UN Environment, Economy Division,
Chemicals and Health Branch,
11-13 Chemin des Anémones, CH-1219 Châtelaine,
Geneva, Switzerland
E-mail science[at]