sent to a landfill, they can pose a risk to public health and the environment. Contaminated items, such as medical or hazardous waste, should be handled and disposed of properly to minimize the risk of spreading disease or contaminating the soil and water. Similarly, when trash collection bags are sent to a landfill, they can release harmful chemicals and pollutants into the environment if they are not properly managed. Landfills are often lined with impermeable barriers and equipped with systems to collect and treat leachate (liquid that has come into contact with the waste), but it is still important to properly manage and dispose of waste to prevent harm to the environment and human health