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Recent air strikes targeting oil facilities in Tehran have resulted in alarming levels of pollution and the unprecedented phenomenon referred to as “black rain,” according to scientists. The World Health Organization (WHO) has raised concerns over the potential health hazards stemming from these attacks, which began on 28 February and have already affected at least four oil sites around the Iranian capital. As residents grapple with thick smog and the noxious smell of burning, experts warn that the environmental fallout could have dire implications for public health.
A City Under Siege: The Extent of Pollution
Satellite imagery has confirmed that smoke plumes from damaged oil depots and refineries have enveloped Tehran, a bustling metropolis with a population nearing 10 million. Observations from 9 March reveal that significant fires continue to rage at two major oil installations, with emergency workers struggling to contain the aftermath. Eyewitness accounts detail a pervasive haze blocking sunlight, along with an overwhelming stench permeating the air.
Dr. Akshay Deoras, a research scientist at the University of Reading, emphasised the unusual nature of the pollution resulting from these air strikes, stating, “What has happened in Iran is definitely unprecedented because it’s all coming from missiles and airstrikes on oil refineries.” The release of harmful chemicals from the oil facilities poses a severe risk to the environment and public health.
The Dangers of Oil Fires
The air pollution stemming from oil fires is particularly concerning due to the variety of toxic substances released during their combustion. Incomplete burning can generate carbon monoxide and soot instead of the less harmful carbon dioxide and water vapour. Moreover, sulphur and nitrogen oxides can be emitted, which pose additional hazards, especially when interacting with rainwater to form acids.
Residents have reported symptoms consistent with high pollution exposure, including fatigue and difficulty breathing. According to one woman in her 20s, “I can’t see the Sun. There is a horrible smoke. It’s still there. I’m very tired.” The difficulty in accurately assessing the extent of pollution is compounded by the absence of ground-based measurement systems, as well as the complicating factors of weather conditions.
Black Rain: A Disturbing Phenomenon
On Sunday, Tehran residents experienced what has been termed “black rain,” a rare occurrence where rainfall becomes contaminated with soot and other pollutants, resulting in a darker appearance. Dr. Deoras explained that raindrops can act like sponges, collecting airborne contaminants as they fall. Although rainfall typically helps clear the air, the presence of such highly polluted particles is alarming.
The implications of black rain extend beyond mere aesthetics; it poses significant risks to both human health and the environment. The WHO has expressed grave concerns over the potential contamination of food, water, and air, particularly affecting vulnerable populations such as children and those with pre-existing medical conditions. Dr. Tedros Adhanom Ghebreyesus, head of the WHO, highlighted that “these very intense exposures of particulates have immediate impacts on the lungs,” with possible long-term health consequences.
Future Forecasts and Ongoing Risks
As weather forecasts predict rain and wind in the coming days, there is hope for some dispersal of the pollutants. However, the risks do not dissipate entirely; contaminants can enter waterways or become airborne again as the ground dries. Doug Weir, director of the Conflict and Environment Observatory, noted the unique situation in Tehran, highlighting that such attacks have not previously occurred in such densely populated areas, thereby exposing millions to a cocktail of hazardous substances.
Why it Matters
The ongoing air strikes and the resultant environmental crisis in Tehran underscore the urgent need for international attention and intervention. With the potential for long-lasting health impacts from the unprecedented levels of pollution, the situation calls for immediate action to safeguard public health and restore environmental integrity. As the world watches, the events unfolding in Tehran serve as a stark reminder of the intersection between conflict, environmental degradation, and human health.
