Pollution is the introduction of harmful materials into the environment and these harmful materials are termed as pollutants. WHO estimates dirty air kills around 7 million people a year. Atmospheric pollution is a type of pollution, which is the presence of undesirable material in the air in quantities, large enough to produce harmful effects of these harmful materials and the atmosphere from sources currently beyond human control. Atmospheric pollution is undoubtedly the most devastating pollution type causing worldwide mortality; inhaling such pollution can increase the chances and ensures that you will have health problems and could be a part of polluted cities in the world. Atmospheric pollution is a very serious problem which is difficult to treat due to the nature of airborne particle. Atmospheric pollution is caused by solid and liquid particles and certain gases which are termed as pollutants. Pollutants originate from both man-made sources as well as Natural sources. Acid rain is one of the most disastrous effects caused by air pollution. The problem is particularly challenging for South Asian countries. A famous monument i.e. the Taj Mahal is turning yellow, due to the effect of acid rain and there are many other places and cities getting polluted day by day, so, here are some cities which is most polluted cities in the world.
1) Delhi (India): In the list of most polluted cities in the world, Delhi is said to have a high level of air pollution year round. The current air pollution level in Delhi is 236 AQI, which tops the list of the most polluted cities. Air pollution in Delhi is caused by industry and vehicles. Nearly 10,000 people every year may die prematurely in Delhi due to air pollution.
2) Hotan (China): Another city in list of most polluted cities in the world is Hotan(China), Since Hotan is located at the southwestern edge of Taklimakan Desert, it is one of the main sources for frequent sand-dust weather events which strongly affect the air quality of that place. The current air pollution level in Hotan is 151 AQI, which is right under Delhi (Ghaziabad) and stands second in the list of the most polluted cities in the world.
3) Faisalabad (Pakistan): Faisalabad lies in the rolling flat plains of northeast Punjab. The reason of pollution in Faisalabad is mostly because of transport sector and industries, and not only because of crop burning. The government is trying to crack down on brick kilns though several of them are still operating. The current air pollution level in Faisalabad is 108 AQI, that’s enough to put this name in list of most polluted cities in the world.
4) Dhaka (Bangladesh): It is located just north of the Buriganga River, a channel of the Dhaleswari River, in the south-central part of Bangladesh. The current air pollution level in Dhaka is 252 AQI. The number of automobiles has been increasing in Dhaka city at the rate of at least 10 to 20% annually, which has been contributing to air pollution on the one hand and traffic congestion on the other and leading towards the production of worst air quality. So, it is another city capturing place in list of most polluted cities in the world.
5) Bekasi (Indonesia): Bekasi is a city in West Java, Indonesia, located on the eastern border of Jakarta in the country of Indonesia. The current air pollution level in Bekasi is 81.2 AQI and the main sources of pollution would be fumes from vehicles as well as smoke and haze from factories. Open burning of organic matter and refuse does still exist, contributing to the ambient levels of pollution throughout the year and is now in the list of most polluted cities in the world.
6) Shenyang (China): Shenyang is a major Chinese sub-provincial and the provincial capital of Liaoning-province, it is located in the central-north Liaoning in China. The current pollution level in this city is 153 AQI. Coal combustion is one of the main reasons of air pollution in Shenyang leading towards the list of most polluted cities in the world.
7) Bishkek (Kyrgyzstan): The other name in list of most polluted cities in the world is Bishkek; Bishkek is the largest city of Kyrgyzstan, which is also the administrative center of the Chuy region. During the winter months, the main contributor to air pollution in Bishkek is dust; also burning of coal for heating, thermal power-plants, construction industries; mining and processing industries and vehicle emissions are other sources of air pollution in Bishkek. The current pollution level in this area is 164 AQI.