Pulse-discharges of mining wastes into a coastal lagoon: Water chemistry and toxicity

Historical mining activities have led to the presence of enormous quantities of mining wastes, which cover large extensions of the Cartagena-La Union mining district (SE, Spain). In the present work, we study the pulse entrance of mining wastes through two temporary streams (wadis) into the Mar Menor coastal lagoon in two torrential rain events and during a dry period. The characteristics of the runoff pointed to the generation of acid mine drainages in wastes, the acidified stormwater runoff loaded with particulate and dissolved heavy metals causing toxicity in the lagoon waters. The dissolved metals, which mainly affected the sampling stations located close to the wadi discharges, were rapidly eliminated from the water column, whereas the particulate metals were transported further and affected a wider area. Finally, both particulate and dissolved metals are eliminated from the water column and are accumulated in the sediments of the lagoon. The results of the water toxicity tests using sea-urchin embryos indicated that water toxicity disappeared within a few days in the most distant stations, but lasted longer and depended on the climatic conditions of the subsequent days in stations closer to the wadi outlets.

Datos y Recursos

Este conjunto de datos no tiene datos

Metadatos
Descargar
DCAT-AP/NTI-RISP

Información básica
Tipo de recurso Texto
Fecha de creación 17-09-2024
Fecha de última modificación 17-09-2024
Mostrar histórico de cambios
Identificador de los metadatos 30af2e02-2035-50df-830e-527cf595ffb9
Idioma de los metadatos Español
Temáticas (NTI-RISP)
Categoría del conjunto de alto valor (HVD)
Categoría temática ISO 19115 biota
Identificador alternativo DOI 10.1080/02757540701339422
URI de palabras clave
Codificación UTF-8
Información espacial
Identificador INSPIRE ESPMITECOIEPNBMMENOR683
Temas INSPIRE
Identificador geográfico Murcia
Sistema de Referencia de Coordenadas
Tipo de representación espacial
Extensión espacial
"{\"type\": \"Polygon\", \"coordinates\": [[[-2.34, 37.38], [-0.69, 37.38], [-0.69, 38.76], [-2.34, 38.76], [-2.34, 37.38]]]}"
Resolución espacial del dataset (m)
Procedencia
Declaración de linaje
Perfil de Metadatos
Conformidad
Conjunto de datos de origen
Frecuencia de actualización
Fuentes
  1. Chemistry and Ecology
  2. vol 23
  3. no 3
Propósito
Pasos del proceso
Cobertura temporal (Inicio)
Cobertura temporal (Fin)
Notas sobre la versión
Versión
Vigencia del conjunto de datos
Parte responsable
Nombre del autor Marin-Guirao, L., Lloret, J., Marin, A., Garcia, G. y Garcia Fernandez, A.J.
Nombre del mantenedor
Identificador del autor
Email del autor lamarin@um.es
Web del autor
Identificador del mantenedor
Email del mantenedor
Web del mantenedor