The aim of this paper is to examine the Po river quality in a small stretch between two stations in Piedmont in the north of Italy. In this stretch a large pollution load is introduced and diluted in the fluent water of the river. The load has been quantified and about it we performed mass...

The optimal wastewater treatment level is affected by costs, hazards and benefits. Lowering the wastewater treatment level decreases fertilization costs because of the increased levels of available nutrients left in the water, and irrigation costs decrease if water prices reflect the lower...