Shivering 10 most polluted cities in the world

Between 2008 and 2013 alone, global pollution levels increased by 8%. In particular, about 80% of the world's cities are suffering from air pollution.

The problem of air pollution in big cities is getting worse. According to the latest report of the World Health Organization (WHO), about 80% of the world's major cities are polluted.

Pollutants that are harmful to human health are measured by PM 2.5 (dust particles smaller than 2.5 micrometers in the air). They are found in coal dust, smoke, and dust. PM 2.5 is especially dangerous because it can get stuck in the lungs, causing long-term health problems such as asthma or chronic lung disease.

Based on PM 2.5 data, WHO has listed the most air polluted places in the world for tourists to take note of when visiting.

Zabol City, Iran 217 µg/m3 PM 2.5

Zabol, Iran, is considered the most polluted place in the world. The pollution index here also reached the highest level.

Gwalior City, India 176 µg/m3 PM 2.5

Gwalior is a historic city, about 200 miles south of New Delhi. It is also the most polluted city in India. The air pollution is high due to coal plants and large number of cars.

Allahabad City, India 170 µg/m3 PM 2.5

Another Indian city - Allahabad is also on the list. The city has a total population of nearly 1 million people, located near the Ganges River so it is famous for its aridity.

Riyadh City, Saudi Arabia 156 µg/m3 PM 2.5

Riyadh is the largest city in Arabia, and also the most polluted with sulfur dioxide in the air, coming from industrial activities.

Al Jubail City, Saudi Arabia 152 µg/m3 PM 2.5

Al Jubail is an industrial city in the Persian Gulf. Due to rapid industrialization since the 1970s, air pollution levels have also increased since the 1980s.

Patna City, India, 149 µg/m3 PM 2.5

Patna is the second largest city in eastern India and a major agricultural commercial center. Pollution levels in the area come from traffic, power generation, and other industries.

Raipur City, India 144 µg/m3 PM 2.5

Raipur is a city in central India and is the fourth most polluted city in the country. Pollution comes from coal, aluminum and steel factories.

Bamenda City, Cameroon 132 µg/m3 PM 2.5

Bamenda is a city in the northwestern mountains of Cameroon and the only one in Africa to appear on this list. Air pollution is caused by rapid urbanization, which leads to soil erosion.

Xingtai City, Hebei Province, China 128 µg/m3 PM 2.5

Xingtai City in China's Hebei Province is the most polluted city in the country due to pollution from coal-fired power plants.

Delhi, India 122 µg/m3 PM 2.5

The Indian city of Delhi used to be at the top of the list for pollution levels, but thanks to the decline in PM 2.5 parameters, it has dropped out of the Top 10. According to statistics, the cause of pollution is motor vehicles and factories.

According to Dan Tri