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close this bookConducting Environmental Impact Assessment in Developing Countries (United Nations University, 1999, 375 p.)
close this folder9. Emerging developments in EIA
close this folder9.5 Environmental health impact assessment
View the document(introduction...)
View the document9.5.1 Need for EHIA
Open this folder and view contents9.5.2 Potential methodologies and approaches for addressing health impacts
Open this folder and view contents9.5.3 Proposed methodology


Human health is influenced not only by the physical environment, but also by social and economic factors. Traditionally, it has been the practice to include health-related risks as part of EIA studies. However, it is being increasingly recognized that a more comprehensive and rigorous approach needs to be adopted to identify and appraise those environmental factors which may affect human health, in the form of an environmental health impact assessment (EHIA). The various factors influencing human health can include geology, vegetation, demography, economics, pollutants, as well as the availability of health services.

The World Health Organization (WHO) has undertaken a great deal of fundamental research on EHIA, holding regular seminars, publishing documentation, and developing methodologies.