What type of waste is classified as low-level mixed waste (LLMW)?

Low-level mixed waste (LLMW) is specifically characterized by its combination of both chemical and radiological components. This type of waste typically originates from facilities that handle radioactive materials, such as laboratories and medical facilities that use radioactive isotopes for research and treatment. The mixture of chemical substances—often classified as hazardous—and low-level radioactive materials distinguishes LLMW from other waste classifications.

By contrast, biological waste refers to materials derived from living organisms, while chemical waste encompasses substances that are harmful or potentially harmful to human health and the environment, but it does not involve radioactivity. Hazardous solid waste consists of solid materials that pose a risk due to their toxicity or potential to cause harm, but again, this does not include any radioactivity. The unique combination of chemical and radiological elements makes LLMW a specific concern in the context of waste management, necessitating careful handling, storage, and disposal practices to ensure safety and compliance with regulations.