a conceptual model for integrated management of the urban environment in tehran metropolis (based on the good governance guidelines)

environmental protection is a key element in urban management. due to complex relationships between human and environment in metropolises the importance of environment is ever-increasing. in this paper the current situation of environment in tehran metropolis including air, water, biodiversity and human habitat along with the most crucial threats, their effect as well as the associated agencies and organizations have been investigated, using the indicators of oecd (organization for economic co-operation and development), unep (united nation environmental program) and gff (global environmental fund). the current management of tehran environment is studied based on a conceptual model and using swot analysis. then, an ideal urban environmental management model is proposed for tehran, with regard to the higher order legal documents of national and international levels and the global models such as: un habitat program, sustainable cities program, policy and regulatory framework for sustainable cities program, healthy cities program, agenda 21, strategies of the environmental european commission and a good governance model, as well as the results of the swot analysis. in this model, the authorities in charge of urban management and their responsibilities are determined and classified at three levels of policy-making, decision making and implementation and target, and the relationship between them are clarified.