Google middel east air pollution concerns,
Iran's rapid urbanization and industrialization have caused major environmental problems. Air pollution, primarily from automobile and factory emissions, has become a serious problem in Tehran and other large cities. A rising incidence of respiratory illnesses prompted the city governments of Tehran and Arak, southwest of the capital, to institute air pollution control programs. These programs aim to reduce gradually the amount of harmful chemicals released into the atmosphere. Pollution of the Caspian Sea has increased substantially since the early 1990s, reaching levels that threaten sturgeon and other fish that sustain the Iranian fishing industry. Although Iran enforces stringent controls on the dumping of municipal and industrial wastes into Caspian waters within its territorial limits, the other countries that border the Caspian Sea do not control pollution in the northern two-thirds of the lake. Iran has urged these countries to sign a binding international agreement for cleaning up the Caspian Sea and preserving its water quality.
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