Concentración de arsénico en agua y sedimento en el río carrizal del cantón Bolívar, provincia de Manabí

The present investigation aimed to determine the concentration of arsenic in the Carrizal river of the Bolivar canton of Manabí province, in order to evaluate the contamination existing in that river. In this study, nine sampling stations were established, located at La Esperanza, Quiroga, Barranco Colorado, Measles, Mata Palo, Los Almendros, San Bartolo, La Karina and El Limón sites, according to the “Protocol of Monitoring the Quality of Water Resources” (2016), from Peru's national water authority, where water and sediment samples were taken at each geo-referenced site during the months of February, March and April. This research is quantitative non-experimental and the analyzes were carried out in the environment laboratory of ESPE (Higher Polytechnic School of the Army), where they were carried out by spectrophotometry of atomic absorption of flame with generation of hydrides, where the following results: Arsenic in surface water in February from 2,344 ppm to 10,005 ppm (dry season), in March and April <0.00 ppm (rainy season), Arsenic in sediments <0.00 ppm in the above mentioned months , the same ones that were compared with the established values in the Ecuadorian environmental legislation (Ministerial Agreement No 061), for surface water and for sediment the international norm Canadian Sediment Quality Guidelines for the Protection of Aquatic life, which allowed to conclude that the anthropogenic activities affect water quality in times when there are no rainfall.

• Auteur principal: Montesdeoca Rivera, Sonia Pamela (author)
• Autres auteurs: Zamora Loor, Ricardo Luis (author)
• Format: bachelorThesis
• Langue: spa
• Publié: 2017
• Sujets: Contaminación por arsénico; Aguas superficiales; Sedimentos; Legislación ambiental
• Accès en ligne: http://repositorio.espam.edu.ec/handle/42000/672