The recent air strikes on oil facilities in Tehran have triggered a severe environmental crisis, leading to alarming levels of air pollution and reports of “black rain.” These developments, highlighted by satellite imagery and expert assessments, underscore the significant health risks posed to the city’s nearly 10 million residents amidst ongoing military conflict.
Air Strikes and Their Consequences
On 28 February, the United States and Israel initiated a series of military operations targeting Iranian oil installations. Since then, at least four significant oil facilities around Tehran have been confirmed as sites of air strikes. Satellite images captured on 9 March reveal that two major oil sites remain ablaze, billowing smoke and releasing a potent mix of pollutants into the atmosphere.
Residents have reported a thick layer of smog obscuring sunlight, creating an acrid odour permeating the air. Experts warn that the scale and composition of the pollutants released during these attacks could be unprecedented in urban environments. The situation is compounded by the city’s dense population and proximity to the damaged oil sites, raising concerns over public health.
The Nature of the Pollution
The air quality crisis in Tehran is primarily attributed to the combustion of oil and related materials at the targeted facilities. When oil is burned incompletely, harmful by-products such as carbon monoxide, soot, and various hydrocarbon compounds are released into the atmosphere. Additionally, the fires can emit sulphur and nitrogen oxides, which pose further risks when combined with rainwater, potentially leading to acid rain.
Dr Akshay Deoras, a research scientist at the University of Reading, noted that the variety of chemicals released as a result of these strikes is unusual compared to typical pollution sources, such as industrial accidents. Eloise Marais, a professor at University College London, echoed this sentiment, stating that such a concentration of toxic pollutants would typically be seen only in severe industrial disasters.
The Phenomenon of Black Rain
Tehran residents reported experiencing “black rain” over the weekend, a term used to describe rainfall contaminated with pollutants, resulting in darkened water. This phenomenon occurs when raindrops act as carriers for soot and other airborne contaminants. Dr Deoras explained that the raindrops effectively collect pollutants from the atmosphere, leading to this unusual rainfall event.
The presence of black rain poses immediate health hazards, especially in a densely populated area like Tehran. Concerns are heightened as the city’s infrastructure may struggle to cope with the environmental fallout from the strikes, potentially contaminating food and water supplies.
Health Implications and Future Risks
The World Health Organization (WHO) has expressed grave concerns regarding the health implications of the ongoing conflict and its environmental repercussions. Dr Tedros Adhanom Ghebreyesus emphasised the risks associated with airborne pollutants, particularly for vulnerable populations such as children and the elderly. Immediate exposure to high levels of particulate matter can lead to acute respiratory issues, while long-term effects may increase the risk of chronic illnesses, including cancer.
Doug Weir, director of the Conflict and Environment Observatory, highlighted the unprecedented nature of this situation, as Tehran’s densely populated areas are now directly affected by military actions typically reserved for more remote locations. With forecasts predicting further rain and wind in the coming days, there is hope for some dispersion of pollutants; however, the long-term consequences for air quality and public health remain uncertain.
Why it Matters
The ecological and health crises unfolding in Tehran highlight the broader implications of military conflict on urban populations. As air strikes continue to target oil facilities, the immediate and long-lasting effects on air quality and human health are becoming increasingly apparent. This situation serves as a stark reminder of the interconnectedness of military actions, environmental degradation, and public health, raising urgent questions about the need for international attention and intervention in conflict zones.
