The best available emissions inventory for Ciudad Juárez is the 1996 Sistema Nacional de Información de Fuentes Fijas (SNIFF) for the state of Chihuahua (Gobierno del Estado de Chihuahua 1998). Unfortunately, these data are problematic. Although plant-level data exist, only data aggregated to the level of the industry subsectors is publicly available. Also, questions have been raised about the reliability of the data. Nevertheless, there is a general consensus that the SNIFF provides a good “back of the envelope” indication of the relative importance of different types of emissions sources. The publicly available SNIFF data.
