In the environment industry, waste refers to any material that is discarded or no longer needed, and that has the potential to cause negative impacts on the environment if not properly managed. Waste can come from a wide range of sources, including households, businesses, agriculture, and industrial activities.

There are many different types of waste, including:

• Solid waste, which includes materials such as paper, cardboard, plastic, glass, and metal that are discarded as trash.

• Hazardous waste, which includes materials that are toxic, flammable, reactive, or corrosive, and that can pose a risk to human health or the environment if not handled properly. Examples of hazardous waste include chemicals, batteries, pesticides, and medical waste.

• Organic waste, which includes materials such as food scraps, yard trimmings, and agricultural waste that can break down and decompose.

• Electronic waste, which includes electronic devices and equipment that are no longer used or wanted, and that contain potentially hazardous materials such as heavy metals and toxic chemicals.

Proper waste management is important in order to minimize the negative impacts of waste on the environment and human health. This can involve activities such as recycling, composting, and safely disposing of hazardous materials.

See also wast as an output of an industrial process in the top500-directory-->Waste