2.3. Classification of research units
In order to examine the impact of urban parks on air pollution concentration and noise levels, three representative types of urban open spaces were selected: an urban park, an urban square and a street canyon. All the investigation sites were located in the same urban tissue in order to prevent local diversity and in the same distance from the sea to enable similar micro-climate conditions (Fig 1): Meir Park e a medium sized urban park (28,000m2), containing mature trees, bushes and lawn, with 85% tree coverage, surrounded by a high density built-up area. This is one of the most mature parks in the city center and has been constantly used for bio climatological, noise and air pollution studies. The monitoring station was situated under a mature evergreen Focus microcap tree-lined avenue, ~60 m from the eastern main road and ~55 from the western side road.
2.3. Classification of research unitsIn order to examine the impact of urban parks on air pollution concentration and noise levels, three representative types of urban open spaces were selected: an urban park, an urban square and a street canyon. All the investigation sites were located in the same urban tissue in order to prevent local diversity and in the same distance from the sea to enable similar micro-climate conditions (Fig 1): Meir Park e a medium sized urban park (28,000m2), containing mature trees, bushes and lawn, with 85% tree coverage, surrounded by a high density built-up area. This is one of the most mature parks in the city center and has been constantly used for bio climatological, noise and air pollution studies. The monitoring station was situated under a mature evergreen Focus microcap tree-lined avenue, ~60 m from the eastern main road and ~55 from the western side road.
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