Cement production and environment

Air quality in the surroundings of three cement plants, which are the most representatives for different industrialization levels (one in Belgium, one in Algeria and one in Vietnam), is estimated by gaseous and dust concentration measurements and fall-out dust networks. Heavy metals, especially the ecotoxic elements are determined. The deposition rates are presented as a function of source-distance in order to emphasize the pollution dispersion varying with prevailing winds. The measured data are compared with the calculation results from Berliand model; different equipment for air quality control is proposed.