Evaluación de la influencia de las actividades antropogénicas en la calidad de agua del Río Portoviejo (cadmio y plomo, zona metropolitana).

In the present investigation the influence of the anthropogenic activities in the water quality of the Portoviejo river was evaluated, determining the anthropogenic activities in the metropolitan area, also the water quality was weighted based on its content of cadmium and lead, comparing the result...

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Bibliografiska uppgifter
Huvudupphovsman: Moncayo Flores, Mariana Alexandra (author)
Övriga upphovsmän: Zambrano Vélez, Jean Pierre (author)
Materialtyp: bachelorThesis
Språk:spa
Publicerad: 2018
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Länkar:http://repositorio.espam.edu.ec/handle/42000/840
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Sammanfattning:In the present investigation the influence of the anthropogenic activities in the water quality of the Portoviejo river was evaluated, determining the anthropogenic activities in the metropolitan area, also the water quality was weighted based on its content of cadmium and lead, comparing the results with the environmental legislation in force in Ecuador. In the first instance anthropogenic activities were determined by application of observation sheets and surveys of interest according to the National Institute of Statistics and Census of Ecuador "INEC", then through laboratory analysis the concentrations of cadmium and lead in the water samples were observed, finally the results obtained were compared with maximum permissible limits established in Annex 3 of Book VI of the Unified Text of Secondary Legislation of the Ministry of the Environment "TULSMA". The anthropogenic activities with the greatest influence on water quality were agricultural activities, discharge of wastewater and solid waste. The average of the lead concentrations in water was higher 0,043 mg / l, considered as low quality for the preservation of the aquatic life and human consumption. In cadmium, the value was 0,02 mg / l, being within the permissible limits for human consumption but high for the preservation of aquatic life. Concluding that anthropogenic activities negatively influence water quality.