CMB8: New Software for Chemical Mass Balance Receptor Modeling

摘要

The Chemical Mass Balance (CMB) method for receptor modeling of ambient airpollutants has been in use for over two decades. Changes embodied in CMB8 include (1) switch from a DOS-based to a Windows-based environment, (2) increased attention to volatile organic compounds (VOC) applications, (3) correction of some flaws in the current version (CMB7), (4) more options for input and output data formats, (5) addition of a more accurate least squares computational algorithm, (6) a new treatment of source collinearity, (7) multiple defaults for sources and fitting species, and (8) choice of fitting criteria. Details of the changes and the procedures for obtaining CMB8 are given.