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S. Roy and A. Chatterjee
Fig. 5.3 Infected scenario with no lockdown, and social distancing in India, α is the p in Fig. 5.4
From Figs. 5.2, and 5.3 we can see the scenario in India could have been much more
devastating if there were no lockdown measures implemented under two circumstantial conditions, namely, with more crowds gathering and low crowd gathering. We
can see that infected people count could have been crossed the 1 lakh mark ‘without
lockdown and more mass gathering’ (Fig. 5.2) as compared to the ‘low crowd gathering’ (Fig. 5.3). These two cases under ‘without lockdown and social distancing’
could have led to more deaths across the nation much ahead of the expected time
as seen from Figs. 5.2 and 5.3. Thus, from this simulation, we are confident that
lockdown was needed to limit the spread of COVID-19 [15].
But is lockdown a permanent solution when we look at the fall in growth rate?
We analyse this in the coming sections. In the next scene we have simulated the
COVID-19 spread across India with social distancing and lockdown. In this case,
the α value taken was very small near 0.2 [16, 17]. Lower value indicates there are
stronger restrictions of lockdown across the country. In Fig. 5.4 we have presented
the scenario with lockdown till October in the graph based on the assumption of
taking the initial month to be April 2020. With lockdown measures, the numbers are
expected to go down from mid-August onwards [18, 19].
5.3 Introduction to Air Pollution
Everything in this world is changing. Man lives within technology and technology
is increasing gradually but still in this tech-savvy world the basic essential needs of
a human life like air, water remains the same. As we know from the wise old saying
that love is in the air but most pathetic thing is that air is polluted. So, it has to be
ensured that pollution shouldn’t be the price of development and prosperity and being
a responsible citizen, it is our duty as well as responsibility to be a part of the solution
to stop the pollution. Basically, pollution is the consequence of the incapability of
proper recycling of waste and pollutants. Pollutants are basically a substance that
S. Roy and A. Chatterjee
Fig. 5.3 Infected scenario with no lockdown, and social distancing in India, α is the p in Fig. 5.4
From Figs. 5.2, and 5.3 we can see the scenario in India could have been much more
devastating if there were no lockdown measures implemented under two circumstantial conditions, namely, with more crowds gathering and low crowd gathering. We
can see that infected people count could have been crossed the 1 lakh mark ‘without
lockdown and more mass gathering’ (Fig. 5.2) as compared to the ‘low crowd gathering’ (Fig. 5.3). These two cases under ‘without lockdown and social distancing’
could have led to more deaths across the nation much ahead of the expected time
as seen from Figs. 5.2 and 5.3. Thus, from this simulation, we are confident that
lockdown was needed to limit the spread of COVID-19 [15].
But is lockdown a permanent solution when we look at the fall in growth rate?
We analyse this in the coming sections. In the next scene we have simulated the
COVID-19 spread across India with social distancing and lockdown. In this case,
the α value taken was very small near 0.2 [16, 17]. Lower value indicates there are
stronger restrictions of lockdown across the country. In Fig. 5.4 we have presented
the scenario with lockdown till October in the graph based on the assumption of
taking the initial month to be April 2020. With lockdown measures, the numbers are
expected to go down from mid-August onwards [18, 19].
5.3 Introduction to Air Pollution
Everything in this world is changing. Man lives within technology and technology
is increasing gradually but still in this tech-savvy world the basic essential needs of
a human life like air, water remains the same. As we know from the wise old saying
that love is in the air but most pathetic thing is that air is polluted. So, it has to be
ensured that pollution shouldn’t be the price of development and prosperity and being
a responsible citizen, it is our duty as well as responsibility to be a part of the solution
to stop the pollution. Basically, pollution is the consequence of the incapability of
proper recycling of waste and pollutants. Pollutants are basically a substance that