Toxic Smoke and ‘Black Rain’ Raise Health Fears in Iran
News Desk
Geneva: The World Health Organization (WHO) has warned that toxic air pollution and so-called “black rain” reported in parts of Iran after recent strikes on oil facilities could pose serious health risks, particularly respiratory problems, urging residents to limit outdoor exposure.
WHO spokesperson Christian Lindmeier said the UN health agency had received multiple reports of oil-laden rain this week following fires at oil storage sites and refineries. The incidents came after strikes on domestic energy infrastructure that left parts of Tehran covered in thick black smoke.
According to the WHO, the attacks triggered the release of large amounts of toxic substances into the atmosphere, including hydrocarbons, sulfur oxides and nitrogen compounds, significantly affecting air quality.
Health experts warn that exposure to such pollutants can cause headaches, breathing difficulties, and irritation of the eyes and skin. Prolonged exposure to certain compounds may also increase the risk of serious illnesses, including some cancers.
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The WHO supported advisories issued by Iranian authorities urging residents to remain indoors where possible. Lindmeier said limiting outdoor activity was a sensible precaution given the current environmental conditions.
Scientists say the phenomenon known as “black rain” occurs when rainfall mixes with pollution particles suspended in the air.
Akshay Deoras, a research scientist at University of Reading, explained that the unusual rainfall likely resulted from weather systems combining with smoke and pollutants released from burning oil facilities.
While the rainfall highlighted the severity of the pollution, Deoras noted that prolonged exposure to toxic air remains the greater health risk. He advised residents to stay indoors, wear protective masks when outside, and cover exposed skin.
Experts say air quality could gradually improve if no further strikes occur, especially as weather forecasts indicate drier conditions later in the week. However, they warn that renewed attacks on energy facilities could worsen environmental and health risks in the region.
