biomagnify

Pollutants climb foodchains

Biomagnify describes how toxic substances become more concentrated as they move up a food chain.

Small organisms absorb pollutants like mercury or pesticides; larger predators accumulate higher doses by eating many contaminated prey: DDT biomagnified through the food chain until it thinned eagle eggshells.

The noun is biomagnification.

contaminants

DDT

Banned chlorinated insecticide

lead · cadmium · arsenic · dioxins · pesticides · methylmercury · industrial chemicals · flame retardants · microplastics · PFAS

foodchain

apex predators

Dominant hunters, no natural enemies

carnivores · omnivores · secondary consumers · energy transfer · phytoplankton · zooplankton · algae · fish · birds · mammals

process

bioaccumulation

Pollutant concentration in tissues

accumulation · half-life · persistence · uptake · retention · sequestration

toxicity

poisoning

Harmful substance exposure

teratogens · mutagens · reproductive harm · Minamata disease · chronic exposure · health effects

Opposites
concentration change through food chain

biomagnifydilute

Reduce by adding solvent

disperse · dissipate · attenuate · thin out · scatter

substance retention vs. elimination

biomagnifymetabolize

Convert to energy

excrete · eliminate · break down · detoxify · biodegrade

Family

biomagnification, biomagnified

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Used worldwide · Timeless · Rated G