TICO TIMES
A recent study by the National University (UNA), through its Institute for Studies on Toxic Substances, warned of a “very probable” and “significant” affectation of aquatic ecosystems at Crucitas, which has been contaminated by mercury used by illegal mining groups to extract gold from the area.
The institution took samples of fish, plants, water and sediments, inside and outside the areas that are being used for illegal mining (from the Caño Crucitas micro basin and the
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