Did you know? Calgary offers free, safe disposal for household hazardous waste through 11 drop-off sites around the city. Many common products can be harmful or dangerous when disposed of in your blue, green, or black bin by mistake. When these items aren't disposed of properly, they can pose safety risks, cause fires, put waste collection staff in danger, or harm the environment. Some of the most common household hazardous waste items include: Batteries, chargers, vapes, and