The European Environment Agency’s (EEA) data has confirmed large decreases in air pollutant concentrations, of nitrogen dioxide (NO2) concentrations in particular . This being largely due to reduced traffic and other activities, especially in major cities under lockdown measures.

Reductions of around half have been seen in some locations. The EEA’s data is measured hourly, on the ground, at about 3,000 monitoring stations across Europe

  • In Milan, average concentrations of NO2 for the past four weeks have been at least 24 % lower than four weeks earlier this year. The average concentration during the week of 16-22 March was 21 % lower than for the same week in 2019.
  • In Bergamo, there has been a constant decline in NO2 pollution over the past four weeks. The average concentration during the week of 16-22 March was 47 % lower than for the same week in 2019.
  • In Rome, average NOconcentrations for the past four weeks were 26-35 % lower than for the same weeks in 2019.

Similar trends can be seen in other European cities where lockdown measures have been implemented during the week of 16-22 March.

And in Spain

  • In Barcelona, average NO2 levels went down by 40 % from one week to the next. Compared with the same week in 2019, the reduction was 55 %.
  • In Madrid, average NO2 levels went down by 56 % from one week to the next. Compared with the same week in 2019, the reduction was 41 %.

And here is a little Javea Connect song we produced before we even heard about this ! 🥰