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Tehran Districts Have Air Monitoring
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Tehran Districts Have Air Monitoring

Air pollution, resulting from gasoline and diesel emissions, is showing a declining trend in Tehran.
At the 94th session of the Tehran City Council meeting, Jafari Hashemi Tashakkori, deputy of the council’s transportation department described the capital’s air pollution status in a report.
The report says all Tehran’s 22 districts now have air pollution monitoring and measuring devices.
A study of the average annual concentration of sulfur dioxide in last several years shows a declining trend in the current year, indicating less sulfur in fuel, Mehr news agency reported.
Tashakkori further stated that the problem of air pollution at present is due to tiny 10 microns and 2.5 microns particles, which have had an increasing trend in recent years. In mornings and evenings the particles increase and during the mid-day hours they are lower due to less traffic.

 CO Reduction
Fortunately the rate of Carbon monoxide (CO) pollutants in the city’s air has significantly reduced since 2011, he added.
He said asbestos is a cancer-causing air pollutant. It has no permissible levels and should not exist in the air. Between 2009 and 2011, the amount of asbestos particles was increasing, but from 2011 to 2013 it showed a decline due to prohibition of the use of non-standard brake pads for cars.
New traffic restrictions will apply to vehicles in some parts of Tehran from next year. The restrictions will not be based on even and odd numbers on license plates, instead vehicles that emit toxic fumes through their exhausts will be hauled up, said Vahid Hosseini, CEO of Tehran Air Quality Control Company.
In many cities around the world, air pollution zones have been designated particularly in downtown areas and admission of cars to the areas are restricted, he added.

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