Iranian capital holiday again due to air pollution

December 4, the Iranian capital Tehran, foggy, no wind. The same day, the Tehran government announced too serious because of air pollution, in addition to hospitals, banks, government departments, private enterprises, factories and school holidays for two days. However, this is not Tehran for the first time to enjoy the "false air pollution".
Too bad air capital of holidays for two days
Tehran is the historic Commercial Road between rest and the "Silk Road". It is located on the southern end of the northern basin of the Iranian plateau, North, East, West, on three sides by mountains and hills, an area of ​​about 658 square kilometers, with a population of about 8.5 million.
Recently, due to the serious air pollution in Tehran municipal government announced 4 -5 Date, in addition to the normal operation of hospitals, banks, all government departments, private enterprises, factories and schools were closed.
Tehran Daily published a news headline: "due to the serious air pollution, the newspaper ceased publication three days, the next will be published in the 8th. The newspaper also published photos of the city of Tehran in a fog screen.
According to reports, the Tehran authorities the number of ambulances deployed in densely populated areas, to prevent people from sudden onset. The government also reminded local residents to minimize out.
Iranian media said, in addition to Tehran, western Iran, and southwest of the air pollution is more serious, some cities starting from 3 days holiday.
Each of four or five thousand people
Death due to air pollution
Business in Tehran, Mr. Lee told reporters: "indeed serious air pollution in Tehran, the locals continue to complain about the sound in recent days, the sky is gray, some people wear masks."
Tehran, a member of the Clean Air critics say, the people living in that environment is tantamount to "collective suicide".
In fact, Iran's air quality is notoriously bad. Last year, the World Health Organization published the first global air pollution report, Iran has been rated as one of the air pollution is the most serious national, in 91 countries, ranked ninth, and respirable particulate matter an average annual value of 124 micrograms / cubic meter ; Iran's southwestern city of Ahvaz "crowned" world's worst air quality in cities, respirable particulate matter average annual value of up to 372 micrograms / cubic meter, nearly 19 times the of 20 micrograms WHO recommended value. These air particle diameter of particles of 10 microns or less, after being absorbed by the body will cause heart disease, lung cancer, asthma, and the inner respiratory diseases.
Tehran Air Quality Center for Rushdie told the media, due to air pollution, Tehran 4000-5000 people died from the disease annually.
Automobile exhaust is the culprit
Almost every year from October to January of the following year, are the days of increased air pollution in Tehran.
Tehran Hill and curved hills, the air flow is not smooth, haze weather, once formed, it is difficult to dissipate in a short period of time. Especially in the northern mountains blocking the air flow from the Caspian Sea, is not conducive to dispersing pollutants.
In addition, the size of the Tehran city growing, the population is too concentrated, the impact on air quality is also not to be underestimated. It has been reported that in the 1990s, Iran's gradual relaxation of state control and open market economy, the rise in the number of middle-class, they set off a wave of consumer expanding the scale of Tehran. Originally planned to accommodate the three million residents of Tehran, rapid population doubled doubled, coupled with Iran's oil and gas resources in the country, the price is very cheap energy, cars become the new darling of the middle class consumer. Thus, the government was forced to transform public space into all roads highways. While in the case of imperfect tracks and public transport, road increased disguised to stimulate the growth of the road vehicles. According to Iranian media reports, Tehran car ownership to 4,000,000. With the growing number of cars, the pollution problem is also gone up. " Tehran mayor Tamaduoen once said, 80% of Tehran's air pollution from vehicle exhaust emissions. French media said Iran's auto industry is not high level (some trucks over 10 years old), and low emissions standards, many vehicles using poor quality gasoline.
To a heavy rain
Air pollution in Iran, the reason is not the first time a holiday or traffic control measures. In July 2009, dust storms causing poor air quality in most parts of Iran, forcing the government announced holiday. In November 2010, due to the wind weakens, the air pollution in Tehran approaching peak, the government announced that Tehran a day off. Tehran to resolve the issue of air quality, previously came up with a lot of countermeasures.
Iranian parliament passed a special bill, members of the public to make use of cleaner fuels a car, and a new car to replace old cars for large displacement and pollution of the environment. However, from the current situation, these measures or the effect is not, perhaps can only help Tehran is a heavy rain.