The World Health Organization has warned about possible health risks after reports of unusual “black rain” in parts of Iran. The dark rainfall is believed to have formed when rain mixed with heavy smoke, soot and pollutants released into the air after fires at oil facilities near Tehran. As the rain passed through the polluted atmosphere, it carried these particles down to the ground, leaving dark stains and oily residues on roads, buildings and vehicles. Experts say the rain could contain harmful chemicals such as hydrocarbons and sulphur-based pollutants.
Health officials warn that exposure to such polluted rainfall may cause breathing difficulties, irritation of the eyes and skin, and other respiratory problems, especially for children, older people and those with existing health conditions. Authorities have advised residents to avoid contact with the rain and limit outdoor activities until pollution levels decrease. Experts also caution that the pollutants could settle in soil and water sources, potentially creating longer-term environmental and health concerns for affected communities. More