SIRIUS North Africa tour 1991.  Outflow from  zinc extraction plant,  Ghazaout, Algeria.  The zinc is treated in sulphuric acid which is  eventually discharged into the sea.  The sea, land and atmosph
01 September, 1991 
GP0AD6 
★★★★ (E) 
SIRIUS North Africa tour 1991.  Sampling seabed near zinc extraction  plant outflow, Ghazaout, Algeria.  The zinc is treated in sulphuric  acid which is eventually discharged into the sea.
01 September, 1991 
GP0MM4 
★★★★ (E) 
SIRIUS North Africa tour 1991.  Zinc extraction plant, Ghazaout,  Algeria.  The zinc is treated in sulphuric acid which is eventually  discharged into the sea.  The sea, land and atmosphere is pollute
01 September, 1991 
GP0VZE 
★★★★ (E) 
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