ADLib Glossary (C)


Contaminants / Contamination

This is a general term for when a material contains substances that would not normally be present. In particular it often refers to substances that could cause pollution as they are toxic in some way to plants or animals for example metals such as lead, arsenic and cadmium or organic substances such as oil or solvents. Another common example is when inert wastes such as bricks and stones have been contaminated with non-inert materials like plastics and wood which means that the waste would not be suitable for use as a secondary aggregate.

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