“The gasoline produced in petrochemical plants has had negative impacts on the [Tehran] city’s air pollution and today we see that this issue is being resolved and the number of clean days in Tehran is rising,” Rouhani told Tehran City Council members.

The president also said that the government plans to add 30,000 taxis and 12,000 buses to the capital’s transportation fleet as part of its renovation programs.

The Department of the Environment (DOE) is to submit documents to the Majlis Energy Committee regarding toxic fuel produced in Iran in recent years.

DOE head, Masoumeh Ebtekar, said evidence of carcinogenic gasoline produced in petrochemical plants has been drawn up.

Iran’s Petroleum Minister Bijan Namdar Zanganeh recently ordered petrochemical plants to stop producing gasoline.

Iran has had to produce gasoline in petrochemical plants as it faced restrictions in gasoline purchase due to international sanctions imposed on the country over its disputed nuclear program.