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The Silent Killer - World’s Most Polluted City

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  In 2014, The World Health Organization studied the air quality of 1,600 cities in 91 countries. New Delhi, India, was ranked number 1 as the most polluted city in the world. Beyond the findings for Delhi, 13 of the top 20 cities with the highest annual averages of PM2.5 in the WHO study were also in India. The figures were alarming and concerning!   Using satellite-based remote sensing technology and ground-level data from the Central Pollution Control Board, Dr. Michael Greenstone and his team from WHO produced an insightful study (Greenstone et al., 2015) showing that 660 million people (more than half of India’s population at that time) lived in areas that highly exceed India’s standards for fine particulate pollution. Large portions of India, particularly in the north along the Indo-Gangetic plain, were heavily polluted and in non-compliance with India’s National Air Quality Standards (NAAQS.) Since 2014, this data has been updated yearly by the W.H.O. Though New Del...
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Winter is Coming!

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As the temperatures start dipping and the city looks forward to the forthcoming festive season, Delhi Government gears up for high levels of air pollution in the coming months. The good news is that air pollution is recognized as a serious threat and it is heartwarming to see the National Capital take cognizance of the fact.  In October Delhi’s AQI dropped to “poor” for the first time in almost four months. This prompted the phase 1 of GRAP to kick-in. A complete ban on coal and wood fires, dust mitigation measures during construction and demolition, use of anti-smog guns, water sprinkling on roads to check dust pollution and zero tolerance of visible emissions from polluting vehicles are some of the restrictive anti-air pollution measures in effect across the region. The transport department has been instructed to tighten its vigil and penalize polluting vehicles. Construction and demolition activities in projects with plot size equal to or more than 500 square meters which are no...
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How Air Pollution Affects Plants and Animals

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  The earth is inhabited by millions of species within the plant and animal worlds. All co-exist and live alongside human beings. Anything in nature that affects humans also affects plants and animals equally, and sometimes in more advanced ways, positively or negatively. One such thing that currently poses a harmful and seriously damaging influence on flora and fauna worldwide is Air Pollution or a very poor Air Quality Index (AQI).  While humans have evolved technologies, air travel, industrial processes, waste disposal methods, and other infrastructural activities, these have steadily deteriorated air quality to unmanageable levels. While human beings are responsible for the health and other damages due to this, the plants and animals bear the brunt of air pollution for no fault of their own. Some are also on the brink of extinction due to this. It is well-known that if plant and animal species keep vanishing from the face of the earth, the time is not far when the human ra...
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