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NAMWA The Dutch system of Water Accounts Sjoerd Schenau CBS (Statistics Netherlands) National Accounts Contents 1. Introduction Environmental accounting 2. NAMWA Scope and methods 3. Current state of the art The Dutch NAMWA and applications 4. International work What is NAMWA? National Accounting Matrix including Water Accounts (NAMWA) Environmental accounting System of National Accounts (SNA) National Accounts: 1. Detailed description of the national economy: accounts, balance sheets 2. Key aggregate macroeconomic indicators (GDP, NI etc.) based on internationally agreed definitions, accounting rules: SNA’93, ESA What is environmental accounting ? Wa ECONOMY ENVIRONMENT Environmental accounts • The environmental accounts are a statistical framework that describe the relation between the economy and the environment • The environmental accounts are composed in all EU member states according to the same rules • In the environmental accounts pollutants are allocated to the different indutsries (NACE) and households National Accounts Environmental accounting !!!! Social statistics Environmental statistics Defenitions of Environmental accounting (SEEA) Satelite account of the National Accounts The environmental acocunts are made according to the definitions of National accounts Resident principle Emissions abroad are included !! Environmental – economic analyses Environmental accounts – Air emission accounts – Energy accounts – Material flow accounts – subsoil accounts – Waste accounts – Land use accounts – Water emission accounts – Water asset accounts – Water flow accounts Work on NAMWA in the Netherlands • Based on an experimental NAMWA published in 1996 • Collaboration between RIZA and Statistics Netherlands • 2002: Extension of original NAMWA • 2003-2005: further extension: addition of more pollutants, more detail for river basins Scale: National and River Basins Economic parameters – National: overview of the expenses (vertical) and receipts (horizontal) with specific attention to water (waterboards, sewage taxes etc.) – Regional: production, use, value added, number of employees per industry NAMWA : the matrix Account nr 1-10 1-10 NAM (economic); mln Euros 11 Water balance; mln m3 12 Emission balance; kg 13 Water balance; mln m3 14 Emission balance; kg 11 12 13 14 Distribution of economic value added generated in the various river basins in the Netherlands Rhine west Rhine mid Rhine east Rhine north Meuse 3% 3% 21% 50% 5% 10% 8% Scheldt Ems Economic production 1996-2000 140 130 120 nationaal rijnwest rijnmidden rijnnoord rijnoost 110 100 90 80 1996 1997 1998 1999 2000 Emission accounts – National en regional emission registration – overview of the production and absorption of emissions by the industries – 78 substances: o.a. P, N, heavy metals, pesticides etc. Origin of pollutants P N Heavy metals Waste water Consumers x x x x x x x x Producers –Agriculture –Fisheries –Mining –etc x x x x x x x x x x x x x x x x x x x x Input from abroad x x x x x x x x Total x x x x x x x x x x x x x x x x x x x x Destination of pollutants P N Heavy metals Waste water Absorption x x x x x x x x Export abroad x x x x x x x x x x Env. indicators –eutrophication –Waste water –Heavy metals Total x x x x x x x x x x x x x x Distribution emissions over the industries (2000) 100% 80% other transport 60% environmental services industry 40% agriculture households 20% 0% As Cd Cr Cu Hg Pb Ni Zn P N GDP and environmental indicators: national 130 125 120 115 wastewater nutrients heavy metals GDP 110 105 100 95 90 85 80 1996 1997 1998 1999 2000 2001 GDP and environmental indicators : SCHELD 140 130 120 110 wastewater nutrients heavy metals GDP 100 90 80 70 60 1996 1997 1998 1999 2000 2001 Water accounts • Water survey from the CBS (national and regional) • every 5 years • production and use of fresh water (ground-, surface- en drinking water) per NACE Use of water in 2001 100% 90% 80% SCHELD 70% MEUSE 60% EEMS 50% MID EAST 40% NORD 30% WEST 20% 10% 0% tapwater sweet groundwater brackish groundwater sweet surface water salt surfacewater Results so far • National NAMWA for 1996 t/m 2003 • Regional NAMWA for 1996 t/m 2002 Usefulness of NAMWA for WFD (1) NAMWA provides a consistent integrated economic- environmental accounting framework which provides information about: - Intensity of water use by branches of industry - The physical flows of supply of water services - Production costs of water services - Environmental taxes related to water at National and River Basin level Usefulness of NAMWA for WFD (2) Hence NAMWA provides indicators about: - Extent and relative significance of water services - Extent and relative significance of water use - Cost recovery - Application of Polluter Pays Principle Future work • NAMWA as a regular ‘product’ from 2002 onwards • Calculate data for 1990-1995 • Waterbalance every year • Composition of indicators • Publication of the data (also on the internet)