Contaminantes prioritarios en truchas arcoiris (oncorhynchus mykiss) del municipio de mutiscua, norte de santander, colombia

Priority contaminants in rainbow trouts (Oncorhynchus mykiss) from the township of mutiscua, Norte de Santander, Colombia

Alfonso Quijano, Javier Navia, Maghdiel Portilla


Los Hidrocarburos Aromáticos Policíclicos (HAP) son compuestos importantes en la determinación de la contaminación atmosférica, producida por la combustión de fuentes móviles, contaminación industrial y la industria petrolera. Los HAP son considerados contaminantes prioritarios por La Agencia de Protección Ambiental de EE.UU (USEPA), debido a sus propiedades carcinogénicas y mutagénicas. Los HAP presentes en los alimentos, representan un riesgo potencial a los consumidores, se asocian fácilmente con la materia particulada y finalmente se depositan en el sedimento y en el agua. En los ecosistemas acuáticos los HAP se incorporan a la biota del entorno y los peces resultan excelentes biomarcadores de su presencia. La región de Mutiscua está influenciada por la contaminación atmosférica producida por las fuentes móviles a gasolina y diésel que circulan por una vía nacional aledaña al municipio. El creciente interés existente en la actualidad por la investigación en el campo de los compuestos orgánicos como los Contaminantes Prioritarios (CP), se debe a la identificación de efectos adversos de estos contaminantes sobre la salud y los ecosistemas. La presente investigación, es una evaluación de la presencia de los CP, en músculo y piel de trucha arco iris. La determinación de los HAP (CP) se realizó por Cromatografía de gases utilizando detector FID (FlameIonization Detector). Se logró identificar la presencia de una mezcla de Benzofluorantenos, considerados como posibles carcinógenos en humanos y a nivel de trazas la posible presencia del Benzo(a) pireno, también clasificado como carcinógeno.

Palabras clave

Cromatografía de gases; benzo(a)pireno; benzofluorantenos; Oncorhynchus mykiss; peces.

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