Environmental exposures occur when people, animals and the physical environment (e.g. water, land, air) come into contact with substances that may be hazardous. Hazardous substances are natural and man made toxins that have the potential to be very harmful to human health, can remain in the environment for a very long time and are suspected to contribute to a wide range of health concerns from asthma to cancer.

This site provides information about where hazardous substances come from, how to prevent or reduce their use and how to protect people and the environment from their harmful effects.