Abstract
India stands tall in the list of the world‘s most polluted cities. It is, therefore, necessary to monitor the quality of ambient air. In this study, the Air Quality Index is calculated using the concentrations of nitrogen dioxide (NO2), sulphur dioxide (SO2) and particulate matter (PM10) in ambient air. A higher value of the Air Quality Index indicates that the air is polluted. A cyclone separator can be used to remove particulate matter from the air and thereby, improve the quality of air. As a part of the study, a cyclone separator with a collection efficiency of 92% is designed and a generic C++ code that computes the ambient Air Quality Index is developed. The Air Quality Index for nine sample locations in Delhi is determined. It has been observed that in many locations the air quality can be improved from ‘moderately polluted’ to ‘satisfactory’ after the removal of particulate matter using the cyclone separator.
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