Publications by authors named "Juan Beltra"

Article Synopsis
  • The Cartagena-La Union mining district in SE Spain faces environmental issues due to mining waste and agricultural runoff, affecting the Mar Menor lagoon.
  • This study analyzed sediment and runoff water properties in two dry riverbeds before and after a rainy period, focusing on pollution levels for nutrients and heavy metals.
  • Results indicated high nitrate concentrations in the runoff water from El Albujón, while La Carrasquilla showed consistent metal contamination in sediments, exceeding WHO standards during the rainy events.
View Article and Find Full Text PDF

The aim of this study was to evaluate the most abundant native plants that could be used as a bio-monitor of metal(loid) concentration in dry riverbeds affected by mining activities. Three plants species and their respective rhizospheric soils were sampled from the El Beal (, 15 samples), La Carrasquilla (, 10 samples), and Ponce (, 12 samples) dry riverbeds from the mining district of Cartegena-La Unión (SE Spain). There is scanty bibliography of the capacity of these species to be used as bio-monitors in the dry riverbeds.

View Article and Find Full Text PDF