How do toxins build up in food chains?
The toxins which are built up in food chain are the toxins which consist of heavy metals such as led, cadmium, mercury. since most of the agrochemicals contain these heavy metals, they tend to accumulate in the food chain. Once a heavy metal get into a body of an animal, it will be deposited in fat tissues thus it cannot be eliminated therefore with increase intake of those heavy metals ,more and more heavy metals accumulate in the food chain. Apart from those toxins food cantain naturally occurring toxins as well.
