Urban Metal Management The Example of Lead

摘要: The metal metabolism of an urban region, the City ofVienna, was investigated to discuss management strategies in view environmental protection and resource conservation. About 90% stock is located Vienna's buildings infrastructure, whilst only 10% landfills. city represents a potential source for diffusive emissions. However, control current policy concentrates mainly on landfill Diffusive emissions resulting from losses over use containing goods are widely dispersed cannot be easily controlled due numerous non-point sources. First investigations indicate that certain applications, as significant other At present, known point lead into air water about 40 50 times higher than comparable past loadings geogenic Vienna. Furthermore, life cycle approach acid car batteries indicates sustainable should consider flows stocks ‘hinterland’ too. also resource. Leaded pipes built-in have produce 1.6 million traditional batteries. In future such mining can partly replace ore mining.