A Spatial Analysis System for Integrating Data, Methods and Models on Environmental Risks and Health Outcomes

Transactions in GIS, Volume 14 Issue s1, Pages 177 – 195

Chetan Tiwari and Gerard Rushton

“Integrating data on health outcomes with methods of disease mapping and spatially explicit models of environmental contaminants are important aspects of environmental health surveillance. In this article, we describe a modular, web-based spatial analysis system that uses GIS, spatial analysis methods and software services delivered over computer networks to achieve this end. The Environmental Health Surveillance System (EHSS) is a prototype system that is designed to serve three purposes: a secure environment for producing maps of disease outcomes from individual-level data while preserving privacy; an automated process of linking environmental data, environmental models, and GIS tasks like geocoding for the purposes of estimating individual exposures to environmental contaminants; and mechanisms to visualize the spatial patterns of disease outcomes via Web-based mapping interfaces and interactive tools like Google Earth.”

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