Hazardous waste can be broadly defined as any material that cannot be used further or is unwanted, and poses a risk to the community or to the environment if not properly handled. These materials include, but are not limited to, chemical, biological and radioactive wastes, sharps, contaminated glassware, balancing/dilution pit waste and some waste products generated during building maintenance, construction and demolition works. Each hazardous waste stream requires special handling to protect the health and safety of personnel generating and handling the waste, their colleagues and the wider community.