[Conservation of tap water in metallo-plastic bags: observed modifications and possible health risks]

Conservation of tap water kept in soft plastic bags and stocked at different temperatures (20, 37 and 55 degrees C) and its health incidences were studied over one year by samples taken at regular intervals. Pollutants generated were studied by investigating the consequences of the choice of the plastic and of the aseptic agent used at different temperatures versus the length of the period of contact. Microbiological, chemical, and physico-chemical characteristics reported here showed the existence of an exchange between the contents and the container. The presence of two toxic substances indicates that one should be careful when using inadequate material. This is a matter to think about without further speculation.