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Observations on concentrations of the heavy metals zinc, manganese, nickel and iron in the water, in the sediments and in two aquatic macrophytes, Typha capensis (Rohrb.) N.E. Br. and Arundo donax L., of a stream affected by goldmine and industrial efflue Observations on concentrations of the heavy metals zinc, manganese, nickel and iron in the water, in the sediments and in two aquatic macrophytes, Typha capensis (Rohrb.) N.E. Br. and Arundo donax L., of a stream affected by goldmine and industrial efflue
Canopy surface conductance of unstressed wheat and its weather dependence Canopy surface conductance of unstressed wheat and its weather dependence
Technical note: Physical, chemical properties of Aswan High Dam Lake water Technical note: Physical, chemical properties of Aswan High Dam Lake water
An evaluation of the methods used for the determination of orthophosphate and total phosphate in activated sludge extracts An evaluation of the methods used for the determination of orthophosphate and total phosphate in activated sludge extracts
Some considerations in polyphosphate determinations of activated sludge extracts Some considerations in polyphosphate determinations of activated sludge extracts
Short communication: Induction behaviour of the tilapia Oreochromis mossambicus Peters (Pisces: Cichlidae) subjected to electronarcosis by various alternating or rectified currents Short communication: Induction behaviour of the tilapia Oreochromis mossambicus Peters (Pisces: Cichlidae) subjected to electronarcosis by various alternating or rectified currents
Water quality management in the RSA: Preparing for the future Water quality management in the RSA: Preparing for the future
Detailed delimitation of rainfall regions in southern Africa Detailed delimitation of rainfall regions in southern Africa