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Fig. 9 | Environmental Evidence

Fig. 9

From: How effective is ‘greening’ of urban areas in reducing human exposure to ground-level ozone concentrations, UV exposure and the ‘urban heat island effect’? An updated systematic review

Fig. 9

Greening interventions studied within each Koppen climate zone: Zone A: equatorial. Zone B: arid. Zone C: temperate. Zone D: continental. Climate controlled: laboratory. One study is of 135 cities covering multiple climate zones. Some studies had sites in two or three climate zones and these were counted separately. Legend is on a logarithmic scale due to skewed distribution of number of studies

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Environmental Evidence

ISSN: 2047-2382