Pollutants that the environment has little or no absorptive capacity are called stock pollutants (e.g. persistent synthetic chemicals, non-biodegradable plastics, and heavy metals).

In answer to the question I would say reducing the amount of persistent man-made chemicals we produce and disperse.

The administration said it would sign a treaty negotiated in the Clinton presidency phasing out persistent toxic chemicals that are already banned in many developed nations.

Environmental action groups such as Greenpeace attribute such low life expectancy to high levels of persistent organic chemicals, particularly dioxins.

This is useful for bacterial contamination, but useless if the fish were found to have been contaminated by persistent chemicals like PCB's.

Dioxins belong to the persistent organic chemicals ("dirty dozen") the production and use of which was banned by the Stockholm Convention in 2001.

But this could lead to the widespread use of persistent chemicals outlawed in the United States or targeted for international phase-out.

She signed a treaty banning dangerous "persistent organic" chemicals found in pesticides.

Proponents of organic agriculture point to the environmental benefits of not using these often persistent and toxic chemicals.

It competes with other species by allelopathy, releasing persistent herbicidal chemicals from its dying tissues, such as decaying leaves.