They are many different pressures for the soil and biodiversity because of different pollutants generated by ash and sludge deposits. In this paper we debate the legal approach of soils and biodiversity management and the methods for prevention and reduction the pollution effects.Ash and sludge deposits have large area for each thermal power plant with carbon fuel. In this paper will be show the compositions of the ash and sludge by the principals deposits and the effects of different pollutants to the soil and biodiversity and the prevention methods basis to the ecotoxicology integrated approach.
