Metadata reported from pan-India air quality modeling studies on PM, VOCs and PAHs. NO x and BC black carbon were reported in this study. For the present study, each article published in a peer-reviewed journal was logically searched using the Scopus, Web of Science, and Google databases. Although outdoor air pollution is a major environmental problem across the world, India is estimated to have some of the worst levels in the world, particularly in terms of fine particle pollution 5. According to the Global Burden of Disease, air pollution in India was linked. deaths 17.8 of total deaths, out of 17.8. Failure to provide passengers with quality services can damage the airline's image and have negative effects on passengers' behavioral intentions. Such results suggest that the quality of service on board airlines relies on the different delivery methods implemented. 7. Air quality monitoring system. Ramik Rawal. Department of Computer Engineering, Vellore Institute of Technology, Gorbachev Road, Vellore, Tamil, India. Email: ramikrawal gmail.