Source apportionment of particulate matter for air quality management

Building an effective air quality management system (AQMS) requires a process of continual improvement, and the source apportionment techniques described in this report can contribute in a cost effective manner to improving existing systems or
even as the first step to begin an AQMS. This report arises from a concern over the lack of objective and scientifically-based information on the contributions of different sources of air pollution