Evaluación toxicológica del río Tahuando
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Date
2023
Journal Title
Journal ISSN
Volume Title
Publisher
PUCE - Ibarra
Abstract
El presente estudio se realizó en el periodo de mayo 2023 hasta agosto 2023, en la ciudad de Ibarra provincia de Imbabura, tomando la cuenca del río Tahuando y siete diferentes puntos. Se realizan ensayos y bioensayos con la finalidad de evaluar características físico químicas del agua. La concentración de aceites y grasas por el método APHA 5520 -B. Se determinó el análisis de aceites y grasas no superan los parámetros sugeridos contando con máximos de 0.24 mg/L y 0.22 mg/L en el punto 6 y 7 respectivamente. La prueba en lechuga presenta un Índice de Elongación Normalizado diferente en punto 5. Sobre microbiota se identifica que las condiciones son potencialmente toxicas en los puntos 2, 6 y 7. Los niveles de pH por el método tienen tendencia a volverse básico (punto inicial 7.72 y punto final 8.14), la conductividad eléctrica aumenta para el punto final a 669 µS/cm, el oxígeno disuelto es por encima al 80%. En este análisis se concluye que existen diferentes factores antrópicos o naturales que representan un riesgo para la microbiota y conservación.
The present study was carried out in the period from May 2023 to August 2023, in the city of Ibarra, province of Imbabura, taking the Tahuando River basin and seven different points. Tests and bioassays are carried out in order to evaluate the physical and chemical characteristics of the water. The concentration of oils and fats by the APHA 5520-B method. The analysis of oils and fats was determined not to exceed the suggested parameters, with maximums of 0.24 mg/L and 0.22 mg/L in point 6 and 7 respectively. The test on lettuce presents a different Normalized Elongation Index in point 5. Regarding microbiota, it is identified that the conditions are potentially toxic in points 2, 6 and 7. The pH levels by the method have a tendency to become basic (initial point 7.72 and end point 8.14), the electrical conductivity increases for the end point to 669 µS/cm, the dissolved oxygen is above 80%. This analysis concludes that there are different anthropic or natural factors that represent a risk to the microbiota and conservation.
The present study was carried out in the period from May 2023 to August 2023, in the city of Ibarra, province of Imbabura, taking the Tahuando River basin and seven different points. Tests and bioassays are carried out in order to evaluate the physical and chemical characteristics of the water. The concentration of oils and fats by the APHA 5520-B method. The analysis of oils and fats was determined not to exceed the suggested parameters, with maximums of 0.24 mg/L and 0.22 mg/L in point 6 and 7 respectively. The test on lettuce presents a different Normalized Elongation Index in point 5. Regarding microbiota, it is identified that the conditions are potentially toxic in points 2, 6 and 7. The pH levels by the method have a tendency to become basic (initial point 7.72 and end point 8.14), the electrical conductivity increases for the end point to 669 µS/cm, the dissolved oxygen is above 80%. This analysis concludes that there are different anthropic or natural factors that represent a risk to the microbiota and conservation.
Description
Keywords
Toxicidad, Río tahuando, Aceites, Grasas, Microbiota, Contaminación