Over the past two years, since the introduction of a a "Low Emission Zone" in the city, which forbids the entrance of Diesel powered vehicles into the town hall.
Unlike other pollutants, pharmaceuticals, which are not fully metabolized in the body, are designed to affect biological systems in even very small amounts.
Data from volunteers and other sources recorded falls in pollution after curbs came into force, but eased restrictions have seen pollution start to climb back.
On March 15, guidelines were issued regarding the closure of all educational institutions and a significant reduction in manpower in the workplace. After March 17, pollution levels dropped noticeably.
Nitrogen dioxide, a noxious gas emitted by cars, power plants and factories, is blamed for some respiratory and heart conditions.
The warning was delivered by Dr. Orr Karassin, a senior lecturer at the Open University of Israel, based on evidence from the 2008 global financial crisis.
Since the beginning of the outbreak, scientists have registered a decrease in air pollution levels in all the areas in the world affected by lockdowns.
Working remotely from a neighborhood café or regional business center can help to reduce road congestion and pollutant emissions.
In 2008, Milan was dubbed the most polluted city in Europe - the smog problem accompanies the title year after year.