[Report, 132: Monitoring of heavy metals in Danish arable soils and uncultivated soils: Analytical report 1992/93]

arable soils arsenic arsenico cadmio cadmium chrome chromium cinc cobre copper cromo cuivre danemark denmark dinamarca heavy metals lead lodos residuales mercure mercurio mercury metales pesados nickel plomb plomo sewage sludge soil types sol arable suelos cultivables type de sol zinc