Cocaine residues found in the wastewater of European cities

Selected European cities in 2022-23, daily mean mg, per 1,000 population

Belgium

Brussels

Spain

Netherlands

Switzerland

Antwerp

The Zuid

neighbourhood had the highest concentration of all sites studied

Portugal

Denmark

Iceland

France

Austria

Croatia

Zagreb

Slovenia

Germany

Dortmund

Czech Rep

Prague

Italy

UK

Bristol

Luxembourg

Estonia

Finland

Latvia

Lithuania

Slovakia

Romania

Sweden

Greece

Cyprus

Poland

Turkey

Hungary

0

500

1,000

1,500

Belgium

Brussels

Spain

Tarragona

Netherlands

Switzerland

Antwerp

The Zuid neighbourhood had the highest concentration of all

sites studied

Basel

Portugal

Lisbon

Denmark

Copenhagen

Iceland

France

Austria

Croatia

Zagreb

Slovenia

Germany

Dortmund

Czech Rep

Prague

Italy

UK

Bristol

Luxembourg

Estonia

Finland

Latvia

Lithuania

Slovakia

Romania

Sweden

Greece

Cyprus

Poland

Turkey

Hungary

0

250

500

750

1,000

1,250

1,500

1,750