(1) measure the presence of hazardous air contaminants in ambient air;

(2) identify sources of hazardous air contaminants;

(3) assess human health and ecological risk to focus studies on those air contaminants that pose the greatest risk;

(4) gather sufficient data to allow the Secretary to establish appropriately protective standards; and

(5) ensure adequate data are collected to support the State's operating permit program. (Added 1993, No. 92, § 15.)