Environmental impact in sandy beaches of copper mine tailings at Chañaral, Chile |
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| Authors: | Juan C Castilla |
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| Institution: | Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Casilla 114-D, Santiago, Chile |
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| Abstract: | Since 1938, untreated copper mine tailings of Potrerillos and El Salvador have been disposed into the sea at Chañaral, Chile (26° 21′ Lat. S., 70° 42′ Long. W.). Over 220×106 t of sediments have been dumped. This pollution has caused drastic geomorphological changes in the c. 16 km contaminated area. The occurrence of new artificial beaches and modification of coastal contours are reported. Sandy beach macrofauna monitoring (1975–1982) demonstrated a progressive lowering of density and biomass in those communities affected by copper mine tailings. |
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