
Top 10: What are the longest lasting landfill items?
We are running out of space in throw away our rubbish, but what takes the longest time to decompose?
1. Glass bottles
Time to break down: one million years
2= Disposable nappies
Time to break down: 450 years
2= Plastic bottles
Time to break down: 450 years
4. Plastic bags
Time to break down: 200-500 years
5. Aluminium cans
Time to break down: 80-200 years
6. Rubber-soled shoes
Time to break down: 50-80 years
7. Tin cans
Time to break down: 50 years
8. Clothing
Time to break down: up to 40 years
9. Plastic film*
Time to break down: 20-30 years
*clingfilm, magazine wrappers, crisp packets, etc
10. Paper coffee cups
Time to break down: 20 years
Read more:
Subscribe to BBC Focus magazine for fascinating new Q&As every month and follow @sciencefocusQA on Twitter for your daily dose of fun science facts.
Sponsored Deals

Spring Savings!
- Try your first 6 issues for just £9.99 when you subscribe to BBC Science Focus Magazine.
- Risk - free offer! Cancel at any time when you subscribe via Direct Debit.
- FREE UK delivery.
- Stay up to date with the latest developments in the worlds of science and technology.