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Environmental fate & pathways

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According to REACH regulation Annex XI, the conduct of a study is scientifically unjustified. For classification purpose data are not required and furthermore inorganic compounds are currently outside the scope of PBT assessments. Further has to be stated, that after distribution in the environment it would be impossible to make a distinction between ions from ammonium magnesium phosphate and ions from other natural occuring minerals comprising magnesium and phosphate. Each deposit would be covered by the huge amount of minerals, which build the sediment in the surface water or the earth´s crust. Magnesium is the eighth most abundant element, constitutes about 2% af the Earth's crust by weight and is an essential element in biological systems, present in every cell type and organism. The most common source of magnesium in groundwater is through the erosion of rocks, such as dolomite and minerals, such as magnesite. It is found naturally in many foods such as vegetables, nuts, grains, fish and dairy products. Phosphorus can be found in the environment most commonly as phosphates. Phosphate salts that are released from rocks through weathering usually dissolve in soil water and will be absorbed by plants. Phosphorus is an essential nutrient for living organism and is a part of the DNA and of fats of cell membranes. Ammonia is found throughout the environment in the air, soil, and water, and in plants and animals including humans. Ammonia occurs naturally and is produced by human activity. Most of the ammonia in the environment comes from the natural breakdown of manure and dead plants and animals. It is an important source of nitrogen which is needed by plants and animals. Ammonia is essential for mammals and is necessary for making DNA, RNA, and proteins.