Amount of plastic along the route of the Volvo ocean race

Concentration of plastic per sq m

Least

Most

Cardiff

Gothenburg

Guangzhou

Newport

Alicante

Hong Kong

Itajai, Brazil

Cape Town

Melbourne

Volvo ocean

race route

Auckland

Concentration of plastic per sq m

Least

Most

Cardiff

Gothenburg

The Hague

Lisbon

Newport, US

Alicante

Guangzhou

Volvo ocean

race route

Hong Kong

Itajai, Brazil

Cape Town

Melbourne

Auckland

Guardian graphic. Source: Dr Toste Tanhua and Dr Sören Gutekunst (Geomar Helmholtz Centre for Ocean Research Kiel and Cluster of Excellence 'The Future Ocean'). Note: Preliminary data