Chemical Safety and Health
Through the Chemical Safety and Health Unit, WHO works to establish the scientific basis for the sound management of chemicals, and to strengthen national capabilities and capacities for chemical safety.

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Events

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Announcements

In response to the Call for Experts to serve as members of an expert group to support WHO’s initiative to evaluate PFAS, issued: 19 May 2025 with application deadline: 30 June 2025, the following list of experts is proposed for the WHO Technical Advisory Group on Per- and Poly FluoroAlkyl Substances (PFAS) Assessment Phase 2. If you have any comments, please contact ipcsmail@who.int no later than 19 October 2025.

Calls

Publications

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WHO Human Health Risk Assessment Toolkit: Chemical Hazards, second edition

The purpose of the WHO human health risk assessment toolkit: chemical hazards is to provide its users with guidance to identify, acquire and use the information...

The WHO Recommended Classification of Pesticides by Hazard and guidelines to classification, 2019 edition

This document sets out a classification system to distinguish between the more and the less hazardous forms of selected pesticides based on acute risk...

Preventing suicide: a resource for pesticide registrars and regulators

Self-poisoning with pesticides causes up to one in five of the world’s suicides. Pesticide registrars and regulators have a key role to play in suicide...

Other documents

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Under an international IPCS project on the epidemiology of human pesticides exposure a number of tools for data collection have been developed. These are:Pesticides...

Recognizing that poisoning of pesticide users and their communities, especially agricultural workers and small farmers in developing countries and countries...

Multimedia

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Fact sheets

Facts in pictures

WHO Information document on ensuring integration of health aspects within the plastics treaty