Iran mazut

Iran’s Dirty Revival — A 540% Jump in Mazut‑Burning in One Province

Over the past year, air pollution in Iranian cities has visibly worsened. But the smoke that hangs over Tehran, Zanjan, and Bushehr is more than seasonal haze — it is the result of a deliberate shift in energy policy. Confidential data from Iran’s Ministry of Oil, obtained and reviewed by Iran Open Data, reveal that […]

Iran’s Dirty Revival — A 540% Jump in Mazut‑Burning in One Province Read More »

Iran’s Escalating Air Pollution Crisis

On September 26, 2025, the Swiss air quality technology company IQAir ranked Tehran as the most polluted city in the world. A day later, the Iranian capital—along with several other major cities—experienced their most polluted days of the year. Air quality indices in parts of Tehran surpassed the “very unhealthy” threshold, while Mashhad, Isfahan, Urmia, Tabriz, Qom, and several

Iran’s Escalating Air Pollution Crisis Read More »