The drastic reduction in traffic due to lockdown results in significantly lower levels of primary pollutants such as NO2 throughout the territory of the Valencia Region , especially in urban environments
Differences between 2020 and average from 2010 to 2019

However, it's not the same for #ozone, whose nonlinear chemistry results in above-average levels in the period 5-12 April. Data show how difficult is to implement ozone reduction actions
Differences between 2020 and average from 2010 to 2019.