DDT content in the water of a lake that supplies drinking water to the

1.	DDT content in the water of a lake that supplies drinking water to the nearby villages, is found to be 0.003 ppm. The kingfishers is that area were reported to have 2 ppm of DDt. Why the concentration increased in these birds ? What harm will this cause to the bird population. Name the phenomena.
Answer» DDT being toxic gets accumulated in organism and passes to next higher trophic level because it cannot be metabolized or excreted. DDT concentrated in higher trophic level, i.e bird Disturbs calcium metabolism- > thinning of egg shell- >premature breaking-> decrease in bird population Bio magnification.

DDT content in the water of a lake that supplies drinking water to the nearby villages, is found to be 0.003 ppm. The kingfishers is that area were reported to have 2 ppm of DDt. Why the concentration increased in these birds ? What harm will this cause to the bird population. Name the phenomena.

Answer»

DDT being toxic gets accumulated in organism and passes to next higher trophic level because it cannot be metabolized or excreted.

DDT concentrated in higher trophic level, i.e bird Disturbs calcium metabolism- > thinning of egg shell- >premature breaking-> decrease in bird population Bio magnification.

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DDT content in the water of a lake that supplies drinking water to the nearby villages, is found to be 0.003 ppm. The kingfishers is that area were reported to have 2 ppm of DDt. Why the concentration increased in these birds ? What harm will this cause to the bird population. Name the phenomena.

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