Organisms are used to either break down contaminants in soil or water, or accumulate the contaminants in their tissue for disposal.

PLA, sometimes referred to as ‘corn plastic’  is used to make biodegradable ‘plastic’ cups and other items.

Loosely discarded, surplus, obsolete, broken, electrical or electronic devices.

Proper recycling and disposal of e-waste is important as electronic equipment contains some very serious contaminants such as lead and cadmium.

Biodiesel is meant to be used in standard diesel engines and is thus distinct from the vegetable oils used to fuel converted diesel engines. Biodiesel can be used alone, or blended with petrodiesel.

Quite commonly, it is simply the garbage that individuals routinely discard, either in a waste receptacle or a dump, or by littering, incinerating, or pouring down the drain.