Techno-economic review on short-term anthropogenic emissions of air pollutants and particulate matter

•Imposition of restriction on people movement plays a vital role in global air quality concentration levels.•The concentration of major air pollutants was measured during lockdown period and compared with previous years.•There is a significant reduction in Annual monthly average of air pollutants concentration due to impact of COVID-19.•The outbreak of COVID-19 around the globe was assessed.