The life of a plastic bottle

9th June 2021

By Lucas Browne and Ben Bell. With thanks to Moya Pinson.

Plastic bottle with a banned symbol over it

Introduction

Plastic pollution doesn't only occur when plastic is littered, put in landfill or burnt. At each stage of its journey, from the sourcing of raw materials to its eventual waste in the environment, plastic pollutes and causes disease. This resource clearly shows that we must focus on reducing plastic production rather than recycling.

First step:
Extraction

Extraction

Oil drum

Taking oil from deep in the ground is called oil extraction. This process is bad for nature, for humans and animals, in many ways: It disrupts wildlife, pollutes the environment, contributes to climate change, ruins areas of nature, and furthers light pollution.

Land grabs, to access and transport oil, displace poor and indigenous peoples from the land that sustains them. This is part of colonialism.

To produce each plastic bottle, a quarter of its capacity in oil is used. For a 500ml bottle, 125ml of crude oil would be used (500 / 4 = 125).

Next step:
Polymerisation
Previous step:
Introduction

Polymerisation

Oil with an arrow pointing to nurdles

Polymerisation is a process to create long chains of molecules. Chemical reactions using high pressure and chemical additives transform the oil into plastic pellets called nurdles. Some of the chemicals used in plastics are toxic. A common type of plastic used to make bottles is called PET (short for Polyethylene Terapthalate). PET can harm humans and animals by interfering with hormones (hormone / endocrine disruption), which can develop diseases such as cancers and developmental disorders.

Next step:
Production
Previous step:
Extraction

Production

Flames pointing to bottles

Pellets are heated and expanded to form into bottles.

Bottles being Sterilised, filled and capped

Bottles are sterilised, filled and capped.
Sterilisation uses ethylene oxide, which is toxic.

Droplets of water with an arrow pointing to a bottle

1 bottle takes 8 times the water it contains to produce it!
Being mindful of our water usage (called water conservation), is important in minimising pollution and damage to the environment.

Next step:
Packing
Previous step:
Polymerisation

Packing

Extra materials are used to pack the bottles. These materials require further natural resources, chemicals, energy and water. A few examples: 2 cardboard boxes with packing tape next to 2 plastic bottles

Next step:
Transport
Previous step:
Production

Transport

Petrol / diesel to fuel the vehicle. Exhaust fumes are released into the air, causing health and environmental problems. According to figures for 2017-18 from the Centre for Cities, deaths from air pollution within the south west region were highest in Swindon.

A petrol pump next to a lorry

Approximately 1 litre of petrol / diesel is used for transportation per bottle.

Next step:
Shops
Previous step:
Packing

Shops and warehouses

A lorry by a shop with bottles of water on the floor

Energy and land are required for shops and warehouses.

Next step:
Consumption
Previous step:
Transport

Consumption

A pound sign and some money.  A face drinking water from a plastic bottle.

Buying plastic bottles encourages more plastic production; supply and demand. So one way to reduce plastic production is to reduce the demand.

Next steps:
Littering
Waste collection
Previous step:
Shops

Littering

2 litter pickers, a bin, and litter including plastic bottles

Plastic litter on the ground doesn't rot down. This causes danger for wildlife, pollutes our environment and makes areas look untidy and horrible.

Unhappy outcomes
Next step:
Conclusion
Previous step:
Consumption

Waste collection

A bin next to a recycling box

Only 23% of plastic bottles are recycled.

Next steps:
Recycling
Waste incineration
Illegal dumping
Landfill
Previous step:
Consumption

Recycling

A lorry drives towards a plastic processing plant

More fuel is used for transport. The plastic is sorted and melted back into PET pellets at the recycling centre. It is then made into other products. Such recycling can only happen a few times, as plastic degrades. This means that plastic recycling only slows down the rate of plastic pollution. Plastic recycling is better termed downcycling.

Products made from recycled plastic
Next steps:
Waste incineration
Illegal dumping
Landfill
Previous step:
Waste collection

Waste incineration

3 lorries outside a waste incinerator

Sometimes called waste-to-energy. Incinerating or burning waste is bad for health and the environment. It lowers recycling rates, contributes to climate change, releases toxins into the air, and is not nice to live by. In Swindon, we dry much of our waste into what is called Solid Recovered Fuel (SRF). It is sent to Eastern Europe to be burnt in cement kilns. This is an indirect method of incinerating waste, including plastic.

Sadly, the construction of a new waste incinerator at South Marston has been approved. Read our article on waste incineration for further information.

The unhappy faces of a rabbit, a person, and an insect
Next step:
Conclusion
Previous step:
Waste collection

Landfill

Landfill

Toxic to soil, the surrounding environment, animals and people. No-one is sure how long plastics take to decompose. Estimates are generally hundreds of years.

Ocean pollution The unhappy faces of a rabbit, a person, and an insect
Next step:
Conclusion
Previous step:
Waste collection

Illegal dumping

A big pile of plastic waste in soil

Governments of countries including the UK have been illegally dumping plastic waste onto poor countries. Swindon Borough Council were until recently sending our plastic waste to Turkey and Taiwan. Greenpeace recently reported that such dumping of plastic waste by the UK is still occurring. To try and stop this continuing, the poor countries who have had plastic waste dumped on them have been working together as part of the Basel Convention.

Water bottles besides and in water containiing fish and plants The unhappy faces of a rabbit, a person, and an insect
Next step:
Conclusion
Previous step:
Waste collection

*Make sure to go back through all the steps as there are several endings.

Conclusion

Plastic pollutes the environment, animals and us throughout its journey. We need to prioritise its reduction rather than focus on recycling. This understanding forms the basis of the waste hierarchy.

  • Consider the difference if we stopped buying single-use plastic bottles and used reusable bottles instead. The Refill scheme launched in 2015. As of 2021, Refill is estimated to have saved 100 million pieces of plastic from being created.
  • Consider the difference a Deposit Return Scheme would make. In the UK, we used to be able to take glass bottles back to shops. The bottles would be cleaned for reuse and we would receive a small amount of money for our efforts.
  • Consider the difference if we shopped locally. Plastic packaging is used as it's cheap and light. Buying locally can reduce the need for such packaging. Supporting local independent businesses can help transform our world.
  • Consider why we need to chemically treat water. A healthy environment naturally filters water.

Also watch The Story of Plastic animated short.

Please share this resource to help reduce plastic pollution!
Previous step: