Soilgas radon monitoring in an active granite quarry from ...
active granite quarry loed in central Portugal. 2 Geological setting The Agrepor quarry produces high quality granite aggregates for use as building materials. The quarry is loed in the vicinity of the town of Canas de Senhorim, Central Portugal (Fig. 1), and actually extends for about 1km2, including extraction areas, milling facilities, and administra tive buildings. The .