Quality analysis of various surface water bodies in the GAM and the osa peninsula using the Dutch Index ; Análisis de la calidad de varios cuerpos de agua superficiales en el GAM y la Península de Osa utilizando el Índice Holandés

Costa Rica is characterized by the amount of rivers, but most of them show high levels of contamination. Special interest is in those of the Gran Area Metropolitana (GAM) since 70% of the population is located in this area. Even though there are many water quality indicators, it is advantageous the simplification by the use of water quality index. One of those already adopted in Costa Rica is the Holland Quality Index (Holland ICA).This is based on the use of three parameters: biochemical oxygen demand, ammonium nitrogen and the dissolve oxygen, expressed the last one as saturated oxygen perce... Mehr ...