Process-generated contaminants

Overview

There is not currently a formal and universally recognised definition of a process-generated substance. Process-generated contaminants can be generated as emissions from combustion processes, abrasion and/or other processes that physically or chemically degrade or otherwise modify the starting material(s), e.g. degradation/composting of organic materials. Such emissions are generally complex and variable mixtures of substances that are generated by processes or activities and are incidentally released (i.e. the substances are not supplied or intentionally produced). They can consist of gases, vapours, mists, fumes and/or particles (fibres and non-fibrous) with…