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Air pollution is a major issue these days in the world. It is particularly hazardous in India. Delhi battles this environmental issue every year. Air quality drastically dipped in the national capital for days. So much so that there was a medical emergency declared due to Delhi Smog. Delhi now is recognized as one of the most polluted cities in the world. This takes us back to the early days of the Industrial Revolution when coal smoke covered cities resulting in City Air Pollution.

In the 1880s, London had only 17 per cent of winter sunshine as compared to the countryside. This improved only to 45 per cent by 1916 to 20. Even today, air pollution is reducing sunlight in the cities. This has deep adverse impact on human health and other things as well such as the efficiency of solar panels. Scientists have found that in India’s national capital Delhi, air pollution in the city reduced solar panels efficiency by 12 to 17 per cent, depending on the kind of photovoltaic technology used. Losses were recorded in some of the other big cities of the world as well: between 9 and 13 per cent in Beijing; 2 per cent in Los Angeles and London.

In fact, the effect could be so pronounced in some of the worst affected cities that City Air Pollution may affect the basic viability of solar energy projects. This also means huge losses of money – Los Angeles’ expanding solar’ power sector may be losing around $6 to $9 million per year by 2020. Over the last few years, the reporting on India’s air pollution has dominated news. Not just that, scientists have also reported that the air pollution is now all set to affect the weather patterns across the world, including the monsoons which get the rainfall needed to sustain the South Asian civilizations and have been doing that for thousands of years.

City Air Pollution from India reaches as far as the Hindu Kush Himalayas. This causes smog together with environmental damage in the ecologically fragile regions. The problem of City Air Pollution is not limited to India only. Bangladesh’s capital city Dhaka is also facing the grave menace. Pakistan does not even know that there is a real crisis and there is no understanding of it as it lacks the measurement of units. Same with China, which faces huge air pollution issues due to City Air Pollution.

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Radhika Joshi

About Radhika Joshi

Radhika Joshi is an ardent environmentalist and holds a master's degree in biotechnology from Amity University
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