Quick Answer
Hazardous waste is any material that exhibits one or more of four characteristics: toxicity, flammability, corrosivity, or reactivity. Common household hazardous waste includes oil-based paint, pesticides, batteries, fluorescent bulbs, motor oil, antifreeze, and cleaning solvents. In Oregon, household hazardous waste must be taken to designated collection facilities — it cannot go in regular trash, down drains, or into recycling bins. Oregon DEQ operates collection events and permanent drop-off sites throughout the state.
The Four Characteristics of Hazardous Waste
The EPA defines hazardous waste by four characteristics. A product qualifies as hazardous if it has any one of these properties:
Toxic
Contains substances that are harmful or fatal when ingested, inhaled, or absorbed through the skin. Examples: pesticides, antifreeze, mercury thermometers, certain cleaning products.
Flammable (Ignitability)
Can catch fire easily under normal conditions. Examples: gasoline, paint thinner, rubbing alcohol, nail polish remover, aerosol cans.
Corrosive
Can dissolve metals or burn skin on contact. Examples: battery acid, drain cleaners, pool chemicals, oven cleaners.
Reactive
Unstable under normal conditions — can explode, release toxic fumes, or react violently with water. Examples: lithium batteries, certain pool chemicals when mixed, old ammunition.
Common Household Hazardous Waste
Many everyday products qualify as hazardous waste when you are done with them:
Garage and Workshop
- Motor oil and transmission fluid
- Antifreeze and brake fluid
- Gasoline and kerosene
- Oil-based paint and paint thinner
- Wood stains and varnishes
- Adhesives and epoxy
Home and Garden
- Pesticides, herbicides, and insecticides
- Fertilizers with high chemical content
- Pool and spa chemicals
- Fluorescent light bulbs and CFLs (contain mercury)
- Batteries (lithium, nickel-cadmium, lead-acid)
Cleaning and Personal Care
- Drain and oven cleaners
- Bleach and ammonia-based cleaners
- Nail polish and remover
- Hair dye and permanent wave solutions
Electronics and Equipment
- Mercury thermostats and thermometers
- Smoke detectors (contain americium)
- Propane tanks and butane canisters
- Fire extinguishers
How to Identify Hazardous Products
Look for these signal words on product labels:
- DANGER or POISON: Highest toxicity — can cause serious injury or death with small exposure
- WARNING: Moderate toxicity — can cause injury with exposure
- CAUTION: Lower toxicity — still requires careful handling and disposal
Additional label indicators include skull-and-crossbones symbols, flame symbols, corrosion symbols, and phrases like "keep out of reach of children" or "use in well-ventilated area." If a product has any of these warnings, treat the remaining product as hazardous waste when disposing.
Oregon Disposal Options
Oregon provides multiple channels for household hazardous waste disposal:
Permanent Facilities
- Portland Metro: Metro Central Household Hazardous Waste facility (open year-round, free for household quantities)
- Lane County (Eugene): Glenwood transfer station accepts household hazardous waste
- Deschutes County (Bend): Household hazardous waste accepted at the county facility
Collection Events
Oregon DEQ and county governments sponsor periodic collection events in communities that lack permanent facilities. These events are free for households and accept most hazardous waste types. Check with your county waste department for the next event near you.
Retail Take-Back
- Motor oil: Auto parts stores (O'Reilly, AutoZone, NAPA) accept used oil for free
- Batteries: Home Depot, Lowe's, and Best Buy accept rechargeable batteries. Call2Recycle locations accept batteries statewide.
- Paint: PaintCare drop-off sites accept house paint for free across Oregon
- Medications: Many Oregon pharmacies participate in drug take-back programs
For more on items that require special handling, see items you cannot throw away.
What Is NOT Hazardous Waste
Some items that seem hazardous are actually safe for regular disposal or recycling:
- Dried latex paint: Once fully hardened, latex paint cans go in regular trash
- Empty aerosol cans: If completely empty (no pressure), they go in recycling
- Alkaline batteries (AA, AAA, C, D, 9V): Safe for regular trash in Oregon, though recycling is preferred
- Standard cleaning products: Dish soap, laundry detergent, and all-purpose cleaners in normal quantities are not hazardous
- Electronics: While they contain hazardous materials, they are handled through e-waste recycling, not hazardous waste programs
Reducing Hazardous Waste at Home
- Buy only what you need: Leftover products become waste. Estimate quantities carefully.
- Choose less toxic alternatives: Vinegar, baking soda, and plant-based cleaners handle many household tasks without hazardous waste
- Use products completely: The best disposal is no disposal — use up products before buying replacements
- Share with neighbors: Leftover pesticides, paint, and cleaning products can be shared rather than wasted
- Rechargeable over disposable: Rechargeable batteries reduce battery waste significantly
Need to clear out a garage or workshop full of hazardous and non-hazardous items? Otesse handles the non-hazardous items and can advise you on where to take the rest. We serve Portland, Salem, Eugene, and Bend. Get a free quote.
