Joydip Sengupta 

In December 2019 the deadly pandemic COVID-19 traumatized mankind through its lethal
impact. To seize the outbreak, nationwide/region-based lockdown strategies were adopted by
most of the COVID-19 affected countries. This in turn resulted in restricted transportation via
surface, water, and air, as well as significantly reduced working hours of the industry sectors,
so on and so forth. The obvious outcome was a sudden discernible decline in atmospheric
adulteration. Accordingly, the anthropogenic emissions at the global and regional/local scales
were examined during the lockdown period by several researchers using both or either
satellite-based and ground-based monitoring. Among several other air-contaminants, carbon
has a dominant toxicological profile causing adverse health effects and thereby attracting
researches interest in carbon-release probing during the systematic confinement period
imposed by the ruling authorities across the globe. The results of those studies indicated a
confirmed decline in carbon emission/concentration making the air more breathable for the
period. In this review, the studies related to anthropogenic emissions of carbon during the
lockdown period are accounted for by compiling the recently reported data from published
articles.