Aluminum foil does not decompose in landfills in a practical timeframe. While it can oxidize and corrode over centuries, it does not biodegrade like organic materials. Estimates suggest it may take 200–400 years (or longer) to break down under typical landfill conditions, where limited oxygen and microbial activity slow corrosion. Its thin, flexible structure might degrade slightly faster than bulk aluminum, but it remains a persistent environmental pollutant if not recycled.
Key Points:
Non-biodegradable: Aluminum oxidizes but does not "decompose" into harmless compounds.
Recycling importance: Aluminum foil is infinitely recyclable if cleaned, reducing the need for mining and energy-intensive production.
Landfill conditions: Lack of oxygen and compacted waste layers slow degradation further.
Always recycle aluminum foil when possible to minimize its environmental impact!
