The outbreak of novel coronavirus pandemic has caused problems all over
the world. Many people all over the world have lost their lives due to
the severeness of the disease. The origin of the infection was the
exposure of people to Huanan seafood market in Wuhan city of China. The
malady has caused huge economic losses across the globe. Since it is a
respiratory disease, the air quality in the region also plays a major
role in determining the degree of the severeness of disease. Many places
all over the world due to high levels of pollution have reported a large
number of deaths. The regions with cold climatic conditions and have
reported a higher number of cases in comparison to the countries with
warm climatic conditions. The climatic conditions also affect the
immunity power of people living in the area. As a result of this, the
people of warmer conditions have stronger immunity and thus do not
suffer to a large extent from the disease. Italy has reported a large
number of infected cases of SARS-CoV-2 and also uncontrolled increase in
the death toll in the initial stage. This study focuses on the
comparison of levels of NO 2 , AOD and O 3 in Italy during the COVID-19
malady and in the previous year to determine the reduction in levels of
these as a result of lockdown. The concentration of these pollutants had
a drastic impact on the severity of the disease in the country. The
announcement of lockdown in the country helped in the reduction of these
pollutants thereby improving the air quality. This also helped in
controlling the number of infected cases and also reduces the number of
deaths due to infection.