[en] The management of contaminated soils in Spain is mainly based on the concept of unacceptable risk as a legal obligation to protect human health. The analyses and management of the risks in contaminated soils involves a detailed physico-chemical and mineralogical characterisation of the contaminated materials, both at the surface and at depth, as well as of the processes that take place under current and future weathering conditions.The purposes of this paper is to study the implications of risk assessment for human health in the decision-making for managing the risk of a contaminated soil such that an acceptable/unacceptable risk be decisive in the selection of technologies for remediating said soil for a specic use.An example of remediation being undertaken in Portman Bay, located in the mining district of La Unión (Murcia, Spain), is given. As a result of the mining waste discharged directly into the bay for more than 30 years, Portman Bay became one of the most contaminated spots in the Mediterranean. From the Roberto washery (the biggest sulphate – pyrite, blende, galena – tailing washery in the world, which treated about 1000 tonnes/day), tailings were discharged by pipe directly into the western part of the bay, from where currents washed them towards the shore. During its service life, the Roberto washery discharged 60 million tonnes of tailings, made up of clay, quartz, siderite, magnetite, and the remains of sphalerite, pyrite and galena, together with metals and residues of the chemical reagents used in oatation. As a result of the dumping, the whole bay lled up with waste, which also extended into the Mediterranean Sea. The most a ected receptors in this area are children, and the most important exposure route is the intake of solid particles, followed by dermal exposure and inhalation. The remediation project is based on the production of ad hoc technosols according to the detected risk.

[es] La gestión de suelos contaminados en España pivota fundamentalmente en el concepto de riesgo inaceptable como una obligación legal de protección de la salud humana. Para llevar a cabo el análisis/gestión de riesgos de los sedimentos contaminados es necesario una profunda caracterización sicoquímica y mineralógica de los materiales contaminantes en super cie y en profundidad, así como de los procesos que tienen lugar en las condiciones de alteración actuales y futuras.El objetivo de este artículo es tratar las implicaciones que tiene el análisis de riesgos para la salud de las personas en la toma de decisiones para la gestión del riesgo de un suelo contaminado, de tal manera que el riesgo aceptable/inaceptable es decisivo en la selección de las tecnologías de recuperación de dicho suelo para un uso determinado. Se expone un ejemplo que se está llevando a cabo en la Bahía de Portmán, en el distrito minero de La Unión (Murcia), constituye uno de los mayores puntos de contaminación minero-metalúrgica del Mar Mediterráneo, colmatada por más de 60 Mt (millones toneladas) de residuos mineros procedentes de vertido directo de estériles de lavadero Roberto, el mayor lavadero de otación de sulfuros (pirita, blenda, galena) del mundo. Los receptores más afectados por el uso de la Bahía son los niños; la vía de exposición más importante es la de ingesta de partículas sólidas, dadas las características del material, seguida de la dérmica y de inhalación. La recuperación se plantea mediante la fabricación de Tecnosoles ad hoc, según el riesgo detectado.