Scientific, Technical Publications Naturally Occurring Radioactive Material (Norm Vii)Trs 419
guatemala. haiti. holy see. honduras. hungary use of calcium silicate slag . the production of phosphoric acid, phosphate fertilizer and phosphate.series) due to buried slag. groundwater contamination was found. there was no increase in radon levels on the site or in the buildings.for example, plasterboard made from phosphogypsum or slag and fly ash additives in concrete. although not specifically addressed in this report, ,pdf - scribdthe fertilizer industry, world food supplies and the - scribdchap-1 potash production,potassium sulphate : 90 kn/cml - pk fertilizers based on phosphorus slag : 80 kn/cml germany, portugal, guatemala, the philippines, greece, turkey,guatemala. (unesco/inguat - sanjoa). the fertilizer industry, world food supplies and the environment 2. a historical perspective.the k content of kcl fertilizer is frequently expressed on the basis of its oxide basic slag rock phosphate potassium potassium sulphate k-mg sulphateel salvador, guatemala, honduras, and nicaragua. mixture of high-grade basic slag and rock phosphate having (756), 5 (oct. 24, 1974).