This chapter presents an approach for the development of a decision-support process for sustainable development planning. The Indicator Scoring System (ISS) incorporates the ex ante assessment of environmental, infrastructure, economic, and social impacts of proposed projects, and links these assessments with a geospatial model of sustainable development potential. The overall process is designed to encourage public participation, provide unbiased

Various types of toxicity classification systems have been elaborated by scientists in different countries, with the aim of attributing a hazard score to polluted environments or toxic wastewaters or of ranking them in accordance with increasing levels of toxicity. All these systems are based on batteries of standard acute toxicity tests (several of them including chronic assays as well) and are therefore dependent on the culturing and maintenance