persistent chemicals

What Chemical Accumulates As A Result Of Biomagnification?

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What Chemical Accumulates As A Result Of Biomagnification? When an animal consumes food having DDT residue, the DDT accumulates in the tissue of the animal by a process called bioaccumulation. The higher an animal is on the food chain (e.g. tertiary consumer such as seals), the greater the concentration of DDT in their body as

How Long Do PCBs Last In The Environment?

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How Long Do PCBs Last In The Environment? The time it takes for half of the amount of PCBs (initially) present to be broken down ranges from 3.5 to 83 days for molecules with 1 to 5 chlorine atoms. What is the half-life of PCBs? Our results are further evidence that a maximum intrinsic elimination