Please use this identifier to cite or link to this item: http://hdl.handle.net/10419/74067
Authors: 
Wang, Tao
Year of Publication: 
2006
Series/Report no.: 
Nota di Lavoro, Fondazione Eni Enrico Mattei 142.2006
Abstract: 
The River Ouse forms a significant part of Humber river system, which drains about one fifth the land area of England and provides the largest fresh water source to the North Sea from UK. The river quality in the tidal river suffered from sag of dissolved oxygen (DO) during last few decades, deteriorated by the effluent discharges. The Environment Agency (EA) proposed to increase the water quality of Ouse by implementing more potent environmental policies. This paper explores the cost effectiveness of water management in the Tidal Ouse through various options by taking into account the variation of assimilative capacity of river water, both in static and dynamic scope of time. Reduction in both effluent discharges and water abstraction were considered along side with choice of effluent discharge location. Different instruments of environmental policy, the emission tax-subsidy (ETS) scheme and tradable pollution permits (TPP) systems were compared with the direct quantitative control approach. This paper at the last illustrated an empirical example to reach a particular water quality target in the tidal Ouse at the least cost, through a solution of constrained optimisation problem. The results suggested significant improvement in the water quality with less cost than current that will fail the target in low flow year.
Subjects: 
Water Quality Management
Tradable Pollution Permits
Tax and Subsidy
Effluent Discharge
Water Abstraction
Dynamic Equilibrium
Integrated River Policy
Cost Effectiveness
JEL: 
C31
C61
L51
R19
Document Type: 
Working Paper

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