Many of the environmental responsible behavior determinants shape environmental awareness (Corraliza, 2001). With the aim of asses environmental concern of Madrid population, it is presented a new scale: the Environmental Awareness Scale. The scale structure is grounded on the cross between five psychosocial constructs and ten environmental issues. The psychological constructs are information level, valuation, facilitation / inhibition, moral obligation and social norm. These constructs were selected because they had proved to be effective in previuos stydies measuring environmental awareness (Taylor and Todd, 1995; Tanner, 1999; Corraliza and Berenguer, 2000; Berenguer, Corraliza, Martín and Oceja, 2001). The environmental issues are pollution, chemical pollutants, cars, noise, waste, recycling, water, energy, natural areas and biodiversity. These issues were selected because of their relevance for the environmental sostenibility. With the support of the City Council of Madrid, the Environmental Awareness Scale was applied to a sample of 1433 individuals. The results show a map of the environmental awareness of Madrid population with a hierarchy of the ten environmental issues for each five psychosocial constructs. To set an example, noise is perceived as one of the more salient and serious environmental problems; however people don't know ways of action oriented to diminish level of noise. One of the main conclussions is that the Environmental Awareness Scale is very useful for environmental management.