Apes Unit 8: POPs, Biomagnification & Bioaccumulation

These flashcards cover key terminology and concepts related to persistent organic pollutants (POPs), their effects on the environment and ecosystems, and specific examples.

POPs

Persistent Organic Pollutants; synthetic compounds that do not easily breakdown in the environment and accumulate in water and soil.

Biomagnification

The increasing concentration of fat-soluble compounds like POPs in each level of the trophic pyramid or food web.

Bioaccumulation

The absorption and concentration of compounds in the cells and fat tissues of organisms over time.

Examples of POPs

Notable examples include DDT, PCBs, PBDEs, BPA, dioxins, phthalates, and perchlorates.

Fat-soluble Compounds

Compounds that can accumulate in fatty tissues of animals instead of dissolving in blood or urine.

Effects of DDT

DDT reduced calcium levels in eggs leading to thin and brittle eggs through biomagnification.

Sources of POPs

Sources include industrial processes, wastewater release, landfill leachate, fertilizer production, and emissions from burning waste.

Impact on Ecosystems

POPs can travel long distances via wind and water, impacting distant ecosystems.