Residentially generated hazardous household materials [pesticides, mercury-containing items, cleaning products, pool chemicals, flourescent bulbs, fire extinguishers, smoke detectors, lead-based/oil-based paints, solvents, acids, bases, herbicides, old fuels (stale gasoline/2-cycle fuel mix), consumer & automotive batteries, antifreeze and preservatives, just to name a few] can be dangerous to people and the environment if stored for extensive periods of time or disposed of improperly.