countries with the worst air pollution ranked by world health organisation - best air purifier in india

Scenes of severe smog in the North
In eastern China, whic is increasing public pressure on Chinese officials to address air pollution.
Wall Street Journal: some countries are too dirty to even breathe.
Source: Getty Images there are some countries in the world with serious air pollution and you can forget to go home with a healthy festive glow.
World Health Organization (WHO)
2014 reports on global air pollution were released, including some worrying findings.
The database looked at air pollution levels in 1600 cities in 19 countries by using a Reading called PM2. 5 and PM10. PM2.
5 is considered to be the best indicator to assess the health impact of air pollution and the concentration of fine particulate matter pollution was checked 2.
The diameter is less than or equal to 5 microns (PM2. 5).
These particles may be smoke, dirt, mold, or pollen, and their size poses the greatest risk to human health as they can be inhaled and accumulated in the respiratory system.
The WHO says there is no level of safety in PM2. 5.
This is the 10 most polluted countries in the world. 1.
Average pm2. 5 in Pakistan
5 pollution: air pollution in Pakistan's 101 ug/m3 city, with nearly 0. 18 billion people, kills thousands of adults every year.
A World Bank report found that more than 80,000 people are admitted to hospital each year for outdoor air pollution alone;
Nearly 8,000 cases of chronic bronchitis and nearly 5 million cases of lower respiratory tract in children under 5 years old.
Breathing in Pakistan is too dangerous. Source:AFP2.
Average pm2.
5 pollution: 92 ug/m3, with a population of 2 million people, and growing, the high construction rate and busy air traffic in Qatar have also increased pollution, make it the second most polluted country in the world.
Qatar has one of the world's busiest routes. Source:AP3.
Average pm2. 5 in Afghanistan
The Afghan government estimates that 3000 people die from air pollution every year in the capital Kabul.
Afghanistan has a population of nearly 30 million, heavy traffic, dusty, and limited geographical location in mountainous cities.
The expanding area of the city has led to illegal homes for diesel generators, or people who can't afford electricity, burn tires and plastic bags as fuel. 4.
BangladeshAverage PM2.
5 pollution: 79 ug/m3Home has nearly 0. 155 billion people, and air quality has dropped by nearly 60 in the past 10 years.
In fact, three of the 25 cities with the worst air quality are Bangladesh.
Highly contaminated leather factory area in Dhaka, Bangladesh. Source:AP5.
Average pm2 in Iran.
5 pollution: 76 ug/m3 with a population of more than 76 million, four cities in Iran are among the top 10 most polluted cities in the world.
Poor political decision-making, substandard gasoline and traffic congestion mean that its residents breathe in a deadly mixture of rubber particles, asbestos, sulfur dioxide, nitrogen oxides and carbon monoxide.
TEHRAN, Iran's heavily polluted city. Source:AFP6.
Average pm2 in Egypt.
5 pollution: 74 ug/m3 the average daily air pollution of Cairo residents is more than 20 times the level of air pollution acceptable to the World Health Organization.
The increasing number of cars, factories and power plants, and the use of old heating methods such as coal and wood, are considered the main people
Sources of air pollution.
In Egypt, the ancient pyramids were swallowed up by smoke.
Source: Australian News Corporation.
Average pm2 in Mongolia.
Pollution: The population of 64 ug/m3it may be only 2.
7 million but the temperature may drop to minus 40 degrees Celsius in Mongolia's long and cold winter, which means that many Mongols burn coal and cook for heating, causing huge air pollution problems.
The capital Ulan Bator is one of the most polluted cities in the world.
The cold winter temperatures mean that many Mongols choose to warm themselves in the open air.
Source: News Australia
Average pm2 in UAE.
Pollution: 61 ug/m3It may be one of the richest regions in the world, but it has gained wealth from the notorious dirty oil and gas industry.
Dubai, with a population of more than 9 million, launched its annual "no-car day" in 2010 to try to tackle congestion and pollution.
The money can't buy clean air in the UAE.
Source: Supply 9.
Average pm2.
5 pollution: In the winter of 2013, air pollution in New Delhi was 60 times higher than the level considered safe by the Indian Science and Environment Center (CSE)
According to the World Health Organization, its air pollution rate is the highest in the world.
Pollution at construction sites, industrial emissions, open flames, vehicle emissions and an alarming population of 1.
2 billion put India in ninth place.
The chaotic streets of Delhi are hard to breathe.
Source: supply 10.
Bahrain average pm2.
Pollution: 57 ug/m3 air pollution is not entirely part of the world's developing countries.
Bahrain may have only one population in a high-income country.
3 million, but because of the high levels of pollution caused by energy production, dust, smoke and industrial emissions, it ranks tenth on the list.