
Dense vegetation at street level
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Water: 1
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Heat: 1
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Biodiversity: 3
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Air quality: 1
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Energy: 1
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Multifunctional space usage: 1
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Costs: 2
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Maintenance/management: 2
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On a smaller scale, for example to protect a building or pedestrians from a busy road, hedgerows can prevent the mixture of air polluted by traffic with cleaner air, thus ensuring a lower concentration of pollution behind these ‘green screens’. The research regarding this measure has received mixed reviews from the various conducted studies.