Sheffield Sheffield Sheffield () is a city and metropolitan borough in South Yorkshire, England. Historically part of the West Riding of Yorkshire, its name derives from the River Sheaf, which runs through the city. With some of its southern suburbs annexed from Derbyshire, the city has grown from its largely industrial roots to encompass a wider economic base. The population of the City of Sheffield is () and it is one of the eight largest regional English cities that make up the Core Cities Group. Sheffield is the third-largest English district by population. The metropolitan population of Sheffield is 1,569,000. The
Geography of Sheffield air pollution measurements for Sheffield (City Centre and Tinsley districts) as well as many other UK towns and cities. The European Commission's COST Action C11 (COST- European Cooperation in Science and Technology) cites, in its conclusions on "Case studies in Greenstructure Planning" involving 15 European countries:- " "Sheffield is fortunate to have one of the strongest green structures of any city in the UK. This green structure, which at its core is linked by watercourses, underlies the City. The effectiveness of the river system as the core of the green structure is supplemented by: the agricultural area, the moorland, the