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STATISTICAL ANALYSIS OF INDOOR AIR POLLUTION PARAMETERS

Abstract

When we talk about air pollution in India and everybody thinks of the four metropolitan cities. But the ambient air quality in even smaller cities and towns is deteriorating alarmingly and in some cases much worse. Indoor air pollution is one risk that we can do something about. In the last several years, a growing body of scientific evidence has indicated that the air within homes and other buildings can be more seriously polluted than the outdoor air in even the largest and most industrialized cities. Other research indicates that people spend approximately 90 percent of their time indoors. Thus, for many people, the risks to health may be greater due to exposure to air pollution indoors than outdoors. Indoor pollution sources that release gases or particles into the air are the primary cause of indoor air quality problems in homes. Inadequate ventilation can increase indoor pollutant levels by not bringing in enough outdoor air to dilute emissions from indoor sources and by not carrying indoor air pollutants out of the home. High temperature and humidity levels can also increase concentrations of some pollutants. If too little outdoor air enters a home, pollutants can accumulate Unless they are built with special mechanical means of ventilation, homes that are designed and constructed to minimize the amount of outdoor air that can leak into and out of the home may have higher pollutant levels than other homes. However, because some weather conditions can drastically reduce the amount of outdoor air that enters a home, pollutants can build up even in homes that are normally considered leaky. A study of 100 kitchens was conducted in typical Indian kitchens at Jodhpur and Kota to assess the concentration of various air pollution parameters. The parameters were NOx, SO2, CO and particulate matter (SPM) and respirable particulate matter (RSPM). A regression analysis was then carried out between these parameters and volume of kitchen, opening area, and exhaust fan facility. It was concluded that the variation of the kitchen parameters have significant effect on RSPM only.

Anil K. Mathur, Rajesh Mathur and A.N. Patel

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