what+do+government+authorities+think+about+air+pollution?

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1- General director of Tehran Province Environmental Protection Bureau : More than 80 percent of pollution in Tehran is due to vehicles. 2- Head of the Environmental Protection Agency’s office of Air pollution: Two factors are causing air pollution: first, atmospheric conditions and natural reasons and the other one is human conditions and pollutant sources. According to him, to understand these factors the roots of the problems should be recognized. One of these roots is of poor quality fuel. The second root is old cars commuting across the city which based on statistics, there are about three and half million old automobiles across the city. Almost more than half of these vehicles are lacking the necessary standards. These vehicles should not be phased, they just lack necessary standards, and the third root is upgrading the standards of the new vehicles. The production of new vehicles should reach level four of Euro Standard but it has remained in the Euro 2 standard.

The next issue is that around one million and 800 hundred thousands vehicles are travelling across Tehran while Tehran’s capacity is 600 hundred thousand vehicles which means 6 times more than Tehran’s capacity. He also argued that the pattern of temperature inversion is another reason of Tehran's air pollution.

3- CEO of Air Pollution Control Quality: in a city like Tehran, almost around95 percent of air pollution is because of monoxide carbon emission from vehicles, in general we can claim that 80 percent of Tehran’s air pollution is because of vehicles.

====4- Deputy of occupational and environmental health center in the ministry of health and medical education claimed that “ there is no scientific way to predict the increase or decrease of the weather and all the statements about the future are human predictions and not scientific forecasting.” He claimed that in “ the second half part of the year, the temperature inversion phenomenon happens , therefore we predict that air pollution will be happen as it happened in the previous years air pollution is of limited duration and may occur in the months of November and December and the temperature inversion will last for one to three weeks.” He argued that when the temperature inversion happens, air pollution in Tehran also increases.,  ====

 ====5- Head of occupational and environmental health center in the ministry of health and medical education claimed that the __building construction__ is the major source of Tehran’s pollution. __Suspended particulates and asbestos dust released from the destroyed buildings__ are also threatening the health of construction workers. He argued that if the government controls this, public health can be maintained. He also argued that Tehran high population is another factor in increasing pollutants in Tehran. Also an effective component of Tehran’s air pollution is the population. Since all air pollution is associated with fossil fuels, per capita fuel consumption has also a very effective role in air pollution. ====

 This news was published in Fars agency which is a right wing newspaper.