The methodology described herein is designed so that impact identification,
prediction, and evaluation constitute the main framework around which other
activities are developed. For each of the 10 activities, the information needs
and methods will be briefly described in terms of their relationships to health
impacts; moreover, it should be noted that some information needs and
methods may be utilized in the prediction and assessment of other environmental
impacts. Additional information on the methodology is available
elsewhere (Arquiaga, 1991 ; Arquiaga, Canter, and Nelson, 1992).