Impact Of Air Pollution In Chandigah City

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ABSTRACT The air quality of Chandigarh city is assessed by using air quality index (AQI). The main component of pollution in the city is suspended particulate matter. The study shows that air pollution is rising again in the city. The air quality in the city can be characterised as bad and on critical lines by air quality index used. This can be attributed to increasing vehicular density which ultimately results to higher vehicular emissions and so does the pollution. Also, the role of meteorological conditions in dispersion of pollutants is also discussed with the help of trend analysis technique. INTRODUCTION The World Health Organization estimates that air pollution contributes to approximately 800,000 deaths and 4.6 million lose their life years annually [10]. Developing nations are particularly affected by air pollution; as many as two thirds of the deaths and lost life years associated with air pollution on a global scale occur in Asia [11]. The data available from the Environment information system (ENVIS) centre indicates that the levels of small particles less than 10 micron (PM10) are showing sharp rising trends in the Indian cities. According to the UN agency’s latest pollution data, Delhi (not Beijing) tops the list of most polluted cities. Among the world’s 20 most polluted cities in the world, 13 are in India. India is in the group of countries that has the highest particulate matter (PM) levels. Its cities have the highest levels of PM10 and PM2.5 (particles

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