Dispose of it safely - Black Cart
Dust and powders must be double bagged and tied closed before putting in your black cart as garbage. This includes any dusty material such as vacuum dust, street sweepings, gravel, pebbles and other small particles.
When your black cart is picked up, loose dust will make large dust clouds in the air and end up in the garbage truck. Bagging this material is necessary in order to keep the air clean and the collection drivers safe.