Long-range transport leads to global pollution – Some POPs will almost always be found if tested for in tissues or
environmental samples from different parts of the world.
Lipophilic – they have a tendency to remain in fat-rich tissues. This affinity for the adipose tissues means that POPs are likely to accumulate, persist and could achieve toxicologically relevant concentrations.
Accumulate in food chain – POPs enter into a cycle in nature, accumulating in the bigger animals as they eat the
smaller ones.