A wide range of tools that support decisions on air pollution, and more generally for sustainable human settlements and urban planning, has been developed and made available for users by WHO-HQ and by WHO Regional offices. Such tools include models and frameworks, interactive websites, templates, toolkits, and software.| www.who.int
WHO fact sheet on ambient (outdoor) air quality guidelines: includes key facts, definition, health effects, guideline values and WHO response.| www.who.int