After releasing from a source, air pollution undergoes multiple atmospheric transformation processes and transport from local-city-regional to global scale to affect human health, visibility, building materials, and ecosystems. The impact of air pollutants on human health are mainly influenced by the toxic nature of pollutants, exposure time, exposure pathway etc. Therefore, there is an increasing need to establish the scientific basis for assessing the risk to human health and the environment from exposure to toxic air pollutants.

Indian International Conference on Air Quality Management (IICAQM) serves as a very important forum and opportunity for scientists, engineers, educators, and practitioners to exchange the latest advancement in theories, technologies, and applications in the area of air quality management and health impacts.

The 1st, 3rd and 5th IICAQM (IICAQM 2016, 2018 & 2020) were held in IIT Madras, the 2ndIICAQM (IICAQM 2017) was held in IIT Delhi and the 4th IICAQM (IICAQM 2019) was held in IIT Bombay. The 6th IICAQM (IICAQM 2021) aims to bring together leading academicians, scientists, engineers, and research scholars to exchange and share their experiences and research results related to all aspects of air pollution health and exposure assessment and its management.

The unprecedented growth of urban centres, industries and vehicle population have resulted in air quality problems. The World Health Organization (WHO) has estimated that in developing countries, increasing Urban Air Pollution (UAP) has resulted in more than 2 million deaths per annum along with various cases of respiratory illnesses (WHO, 2014). One of the major sources of UAP is the road transport sector. In addition, domestic, commercial and industrial activities contribute to UAP.