Nearly 59,000 Iranians dice prematurely owed to aerial contamination successful twelvemonth to March, according to officials.
Tehran, Iran – Iranians successful the superior and galore different cities crossed the state are breathing successful toxic fumes arsenic authorities edifice to burning soiled substance to nutrient energy and header with multiple ongoing crises.
At 14 powerfulness plants, authorities for years person burned mazut, a acheronian residue of petroleum precocious successful sulphur and different impurities, whenever they tally retired of earthy state to provender the energy generators.
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This happens each twelvemonth owed to what observers telephone chronic mismanagement and ageing infrastructure. It occurs contempt heavy sanctioned Iran having the world’s 2nd largest proven earthy state reserves and the 3rd largest crude lipid reserves.
Thick and suffocating layers of smog blanketed Tehran connected Monday adjacent arsenic postulation was airy arsenic the state unopen down to observe a spiritual holiday.
Footage taken connected Saturday from the astir 4,000-metre-high (13,000ft-high) Tochal mountain, adjacent to bluish Tehran, showed the superior nary longer disposable beneath the layers of pollutants.
تهران دفن شده در زیر دود و آلودگی، از نمای قله توچال pic.twitter.com/hpOi8UHtEg
— 🌳 Hadi (@hadinik) November 22, 2025
The metropolis of astir 10 cardinal has been among the apical 5 astir polluted crossed the satellite implicit the past respective days, intimately trailing Pakistan’s Lahore and India’s New Delhi.
The contamination scale stood astatine much than 200 aboriginal connected Monday for a “very unhealthy” classification with a precocious attraction of PM2.5 airborne particles, which tin origin respiratory issues, worsen bosom problems and impair lung function, particularly for children, the aged and those with wellness vulnerabilities.
A “good” scale is zero to 50, portion a “moderate” is 51 to 100.
State tv said Iran’s clime conditions were expected to stay astir unchanged until the extremity of the week with hardly immoderate beardown upwind oregon rainfall coming to the rescue. Weather inversions, which trap warmer, smog-filled aerial adjacent to the aboveground of the Earth and forestall it from dispersing, are expected to marque the concern worse, arsenic bash high-emission vehicles and motorcycles.
Air prime has besides been rapidly deteriorating successful some ample and tiny cities crossed the state implicit the past week, further threatening tens of millions of radical with unsafe pollutants.
The Iran Meteorological Organization has issued wellness warnings for heightened aerial contamination successful Tehran, Karaj, Arak, Isfahan, Tabriz, Mashhad, Ahvaz and Urmia. Schools and offices person been unopen down successful a fig of cities. Authorities successful Tehran person yet to denote closures contempt the hazardous air.
An Iranian antheral wears a look disguise arsenic helium rides a motorcycle connected a Tehran thoroughfare connected a time of precocious aerial contamination connected November 22, 2025 [Abedin Taherkenareh/EPA]Heavy costs
To avoid much crippling powerfulness blackouts, the authorities of President Masoud Pezeshkian continues to pain mazut, arsenic did his predecessors.
A monolithic 21 cardinal litres (5.55 cardinal gallons) of the soiled chemic merchandise was being burned each azygous time by mid-November, according to the semiofficial Fars quality agency, affiliated with the Islamic Revolutionary Guard Corps.
Speaking during an accumulation connected renewable vigor and energy ratio successful Tehran past week, Energy Minister Abbas Aliabadi confirmed to reporters that powerfulness plants volition support burning the dense substance lipid whenever indispensable arsenic wintertime acold brings much earthy state shortages.
“Mazut-burning powerfulness plants are debased precedence due to the fact that liquid substance is invaluable and we similar to usage it arsenic a past resort,” helium said, without making immoderate notation of the wellness impacts that utilizing the substance would entail.
Deputy Health Minister Alireza Raisi told authorities media this period that 58,975 Iranians had died arsenic a effect of breathing successful PM2.5 particles during the twelvemonth that ended successful March. That means 161 deaths per day.
The victims died of bosom disease, lung cancer, chronic obstructive pulmonary disease, strokes and little respiratory tract corruption straight linked with the aerial pollution, according to the official.
Raisi said the authorities has estimated costs of aerial contamination successful the twelvemonth until March astatine $17.2bn owed to healthcare expenses, premature deaths, mislaid productivity, schoolhouse closures and concern shutdowns.
In November 2024, Iranian authorities media had hailed what they called “the government’s brave act” to temporarily halt burning mazut. At the time, authorities spokeswoman Fatemeh Mohajerani called it replacing “producing poison” with “calculated blackouts”.
As the smog dispersed crossed Iran this week, different taxable dominating nationalist attraction was wildfires that erupted crossed 8 hectares (20 acres) of wood and mountainous onshore successful the bluish provinces.
The fires threatened UNESCO-listed Hyrcanian forests, considered the oldest temperate wood connected earth.
The ISNA quality bureau reported the blazes had been mostly brought nether power arsenic of Monday.

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