Urban air quality under Climate Change:
The air quality will under future climate change also predominantly depend on primary anthropogenic emissions. Many cities in the world suffer from severe air
pollution caused mainly by emissions from the sectors traffic, industry and residential heating. Among the air pollutants it will be especially ground-level ozone for which higher concentrations are expected due to increased temperatures.
For particulate matter the overall effect of climate change is more complex to disentangle. In regions with a projected increase in precipitation amounts an increase in wet deposition is expected. Adaptation measures by employing urban trees should be aware of possible additional BVOC emissions and negative effects on ventilation.