Recent improvements in air sampling and analytical techniques have stimulated rapid growth in new techniques of source impact analysis using receptor models. These models 'decode' the chemical fingerprints and variability of the ambient aerosol to back-calculate source impacts. Unlike source (dispersion) models that estimate source strengths from emission rate, meteorology and stack parameters, receptor techniques separate source contribution to the total, fine, coarse, or inhalable particulate mass using data from ambient aerosol measurements. This document is the second of a series describing how receptor models can be used by State and local regulatory agencies to identify particulate source impacts. Volume I (PB82-187337) provides an overview of Receptor Model Applications, while Volume II focuses on the Chemical Mass Balance technique, model theory and input requirements. Case studies of applications in control strategies development are presented. Program design, ambient and source testing considerations, the use of receptor models in validating dispersion models and other potential application are discussed. This document is intended to provide those responsible for the development of particulate control strategies, airshed management and source impact assessment with new information on the Chemical Mass Balance method.

"EPA 450/4-81-016a"--vol. 1. "EPA 450/4-81-016b"--vol. 2. Includes bibliographical references.

Volume 1. Receptor model applications -- Volume 2. Chemical mass balance.