“Heavy metals concentration (cr total, pb, cd) in surface water and sediments in the salado (guayaquil)”
DOI:
https://doi.org/10.53591/rug.v113i2.1186Keywords:
Estero Salado, heavy metals, gastropods, environment, ecosystemAbstract
This work done during the dry season (August, September, October) of 2010 at five points of Estero Salado de Guayaquil was determined the concentration of heavy metals Cadmium (Cd), total chromium (Cr), Lead (Pb) in the surface water and sediment matrices the same as reported values of Cd (ND - 0.06 ppm), Cr and Pb (ND - 0.01 ppm) for surface water samples, while sediments were Cd (ND - 9 50), Cr (11, 99 to 43.47 ppm), Pb (13.47 to 69.47). In addition, samples of gastropods (Cerithidea validated) to determine whether these metals affect these organizations and therefore the food chain, organisms were captured in the study area in the month of October getting results of Cd (1.37 - 3 5), Cr (4.50 to 7.99), Pb (18.73 to 41.03). The values found in each of the matrices we reflect the environmental problems existing in this ecosystem due mainly to industrial activities, rapid population growth, deforestation and mismanagement of waste and discharges of domestic and industrial use untreated well causing deterioration of this ecosystem.
References
2Rainbow, P. 1993. The significance the trance metal concentration in marine invertebrates. In Ecoxitology of metals in invertebrates. Lewis Publisher. Boca Raton. F.L. 3 -23pp.
3Rainbow, P. 1995. Biomonitoring of heavy metal availability in the marine invironment. Mar. Pull. Bull 31 (4 – 12): 183 -192.
30Texto Unificado de Legislación Ambiental Secundaria. (TULSMA) Tabla III “Libro VI. Anexo I. Norma de Calidad Ambiental y de descarga de efluentes: Recurso agua. Criterios de calidad admisibles para la preservación de la flora y fauna en aguas dulces, frías o cálidas en aguas marinas y de estuario.
53Cárdenas, M. 2010. Efecto de la contaminación Hidrocarburífica sobre la estructura comunitaria de macroinvertebrados bentónicos presentes en el sedimento del Estero Salado, Universidad de Guayaquil, Facultad de Ciencias Naturales, Maestría en Ciencias Manejo sustentable de recursos Bioacuáticos y Medio Ambiente.
55Piansiri P. y P. Boonchamoi. 2008. Comparative toxicity of mercury and cadmium to the juvenile freshwater snail, Filopaludina martensi martensi. ScienceAsia 34: 367–370.
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