AQD - Area Classification Submitted None Data Dictionary Vocabularies Eionet Data Dictionary Rural All areas, that do not fulfil the criteria for urban or suburban areas, are defined as "rural" areas. There are three subdivisions in this category to indicate the distance to the nearest built-up urban area: Valid Data Dictionary Vocabularies Eionet Data Dictionary AQD - Area Classification Rural-Near_city area within 10 km from the border of an urban or suburban area. Valid Data Dictionary Vocabularies Eionet Data Dictionary AQD - Area Classification Rural-Regional 10-50 km from major sources/source areas. Valid Data Dictionary Vocabularies Eionet Data Dictionary AQD - Area Classification Rural-Remote > 50 km from major sources/source areas. Valid Data Dictionary Vocabularies Eionet Data Dictionary AQD - Area Classification Suburban Largely built-up urban area. ‘Largely built-up’ means contiguous settlement of detached buildings of any size with a building density less than for ‘continuously built-up’ area. The built-up area is mixed with non-urbanised areas (e.g. agricultural, lakes, woods). It must also be noted that ‘suburban’ as defined here has a different meaning than in every day English i.e. ‘an outlying part of a city or town’ suggesting that a suburban area is always associated to an urban area. In our context, a suburban area can be suburban on its own without any urban part. Valid Data Dictionary Vocabularies Eionet Data Dictionary AQD - Area Classification Urban Continuously built-up urban area meaning complete (or at least highly predominant) building-up of the street front side by buildings with at least two floors or large detached buildings with at least two floors. With the exception of city parks, the built-up area is not mixed with non-urbanised areas. Valid Data Dictionary Vocabularies Eionet Data Dictionary AQD - Area Classification