By upsetting the natural environment of the largest city of Louisiana, Katrina has not only led to ecological impacts but also health and financial. In fact, when Katrina swept over the coast, all human constructs were affected. Communications, roads, port, public buildings, hospitals, schools, businesses and homes were destroyed. The assessment could stop there, but it is really just a preamble to all the problems that were created by the sudden disappearance of a whole system. The destruction of buildings and infrastructure has had very different effects on the quality of life of the population, and at various time scales. During the hurricane, all public services were interrupted at the same time. The population has not had access Ieau