The report is completed by a series of case studies on selected cities, regions and countries (Istanbul, Cameroon, Spain, the Netherlands, Sudan, Swaziland and basins of La Plata and Lake Merin).

UNESCO: MEDIA SERVICES

The scientists compared the benzene exposure of 50 people in six cities in Belgium, Greece, Denmark, Spain, Italy and France.

BBC: Is your floor a health hazard?

The Newcastle pilot - run by Newcastle University and the city council - is part of a project involving six other European cities in France, Denmark, The Netherlands, Greece, Italy and Spain.

BBC: Green light sat-nav trialled in Newcastle