The improvement of the quality of the air in brussels at the end of a month and a half of confinement is reflected by a decrease in the levels of nitrogen monoxide up to 75 % in the sites usually heavily exposed to emissions from car traffic, according to reports from the Brussels Environment presented Friday by the cabinet of the regional minister Alain Maron.

The concentrations of different pollutants identified in the march 19 to may 3, were compared with data for 2010-2019.