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Metals Environmental Risk Assessment Guidance (MERAG)

12 February 2007

Metals are natural components of the earth and exist in many forms - each with its own specific chemical characteristics that define its interactions with the environment and with living organisms.


  • Typical risk assessments and guidance fail to take into consideration the specificities of metals. This guidance provides detailed advice to perform accurate health risk assessments for metals.
  • MERAG consolidates existing experience and recent progress made with environmental risk assessment methods, concepts and methodologies used in chemicals management programs and environmental quality standard setting (soil, water, sediments) for metals.
  • MERAG comprises several fact sheets, looking at considerations for specific elements of environmental hazard assessment, namely:

Supporting Documents