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Large Volume Inorganic Chemicals - Ammonia ... - ammk-rks.net

Large Volume Inorganic Chemicals - Ammonia ... - ammk-rks.net

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Chapter 5OriginMine/regionU-238Th-232Ra-226Po-210Pb-210ChinaRadioactivity Bq/kgIsrael Nahal Zin 1325 92 1325 1325 1325JordanMoroccoRussiaSenegalEl-HassaKhouribgaYoussoufiaBu-Cra 750 16 750 750 750Kola (1) 35 90 35 35 35Kovdor (1) 30 30 12 13 8TaibaSouth Africa Pharlaborwa (1) 110 360 110 110 110SyriaTogoTunisiaUSAGafsaFlorida 1500 37 1300 1300 1300North CarolinaTable 5.4: Radioactivity of different phosphate rocks[29, RIZA, 2000] and references within(1) Igneous<strong>Large</strong> <strong>Volume</strong> <strong>Inorganic</strong> <strong>Chemicals</strong> – <strong>Ammonia</strong>, Acids and Fertilisers 219

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