Fig. 10From: 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 reviewFrequency of types of green area studied in Koppen temperate climate zone sub-groups: Studies which reported data from more than one type of green area and/or from more than once climate zone have been counted once for each type of green area/climate zone studiedBack to article page