ABSTRACT

Drinking Water ............................................................................................114 7.4 Inverse Distance Weighting: Modeling Food Purchases

from Supermarkets ......................................................................................118 7.5 Dispersion Modeling: Exposures to Air Pollution from Coke Works .......120 7.6 Conclusions .................................................................................................121 References ............................................................................................................123

Relationships between the environment and health are intrinsically geographical. They involve the intersection of two geographies: that of the agents of risk (the environmental hazards) and that of the population at risk. GIS clearly has much to offer in this respect, for they provide the means both to map and model these two geographies, and to bring them together and link them for the purpose of exposure and health risk assessment. In recent years, this potential has begun to be exploited. Gradually, GIS is gaining a foothold in epidemiology and is becoming a standard tool for visualization and exploration of health outcomes and for exposure modeling.