The study generally confirms the trends and impacts identified in the February 2001 study "Air Quality in Pima County," and suggests two types of strategies for maintaining air quality and ensuring compliance with federal air quality standards. Potential funding sources and future legislative considerations are briefly discussed.

Provides an inventory of resources in Ajo and western Pima County and land use planning proposals so that the Planning and Zoning Commission and Board of Supervisors have the opportunity to add western Pima County to the Comprehensive Plan as part of the 2001 Plan Update.