What is biological magnification? Will the levels of this magnification be different at different levels of the ecosystem?

(N/A) Biological magnification is the process of increasing the concentration of non-biodegradable toxic substances (such as pesticides or heavy metals) in the tissues of organisms at each successive trophic level of a food chain.
Yes,the levels of this magnification are different at different levels of the ecosystem.
The concentration of these chemicals increases as we move up the food chain.
Therefore,the maximum concentration is observed in the organisms at the highest trophic level (top carnivores),while the minimum concentration is found in the organisms at the lowest trophic level (producers).