A Review on Various Methods Employed to Measure Air Quality in the Vicinity Using Internet of Things

Generally, air pollution refers to the exertion of various substances into the atmosphere that cause discomfort, disease, and death in humans, animals, and the environment. In most developing countries, air pollution reduction and sustainable development are common challenges. With the drastic urbanization and increasing megacities and concrete jungle, new types of research and services are needed. Casualties due to air pollution accidents which fall under environmental pollution accidents have increased since there is growth in chemical industrial park because of the development in economy. There is a necessity to examine the relation between megacities and air pollution, their local climates, and the impacts on global climate as a result of the day-to-day increasing number of people living in those areas. The studied papers mainly focused on nitrogen oxides (NO
x
) and particulate matter (PM) in various dimensions whereas some observed the volatile organic compounds (VOCs) and ground level ozone (O
3
). This paper presents a review study on various AQM systems and also presents various parameters like data storage, power source, visualization technologies, processing and sensors used in the researches.