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We calculate emissions of criteria pollutants (VOC's, PM10, CO, NOx and SOx) from point sources for the year 1997 in Cali-Yumbo (Colombia). Data were obtained from 108 emission declarations to environmental authorities. We applied the method of emission factors for most of the sources which had no direct measurements and reported type and amount of fuel used. We find that paper manufacturing and printing/publishing industries generate the most pollutants overall, followed by non-metallic minerals and textile/apparel industries. While the sources in the city of Cali were responsible for most of the volatile organic compounds (VOC's), emissions of sulfur oxides and particulate matter originate mostly from sources in the industrial town of Yumbo. [ABSTRACT FROM AUTHOR]