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Repositorio Costa Rica

Trabajos realizados por los docentes participantes del curso Nucleando

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Cuando los agricultores aplican fertilizantes y plaguicidas para mejorar sus cosechas, no todo el producto es aprovechado por las plantas. En el caso del nitrógeno, se estima que hasta un 80% se pierde en el medio ambiente, filtrándose hacia los ríos, lagos y acuíferos subterráneos. Esta contaminación puede causar la proliferación de algas tóxicas y afectar la salud humana al disminuir la capacidad de la sangre para transportar oxígeno.

  • Considerando que cerca del 80% del nitrógeno aplicado en los campos se pierde en el ambiente.

¿Cómo permitiría el uso del isótopo Nitrógeno 15 (15N) determinar si la contaminación del río proviene de los fertilizantes de la plantación o de los desechos humanos de las viviendas cercanas?

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