Development and implementation of air quality data mart for Ontario, Canada : a case study of air quality in Ontario using OLAP tool
Popular summary: Air quality data mart built in this study consists of historical air pollutant data for cities across Ontario. This data is available at the Ontario ministry of environment website from 2000-2007 for most of the cities. There is missing data for some of the cities and some pollutants as well. It is because the monitoring of those specific pollutants did not commence in or before 2