‘Black rain’ reported in Tehran after airstrikes on Iranian oil facilities send toxic smoke into the atmosphere
The Facts
- Reports described “black rain” falling near Tehran after airstrikes on Iranian oil facilities released dark smoke into the atmosphere.
- Residents in Tehran reported health complaints such as burning eyes and difficulty breathing when the dark, oily precipitation fell.
- The precipitation was linked in reports to strikes that hit several fuel oil depots and a refinery.
- Experts described black rain as occurring when soot, ash, and toxic chemicals combine with water droplets in the atmosphere and then fall during rainfall.
- Experts and/or health officials warned that exposure to black rain can create short- and long-term health risks and advised precautions.
- Reports said plumes of dark smoke were observed in other parts of the region during a period of conflict involving attacks and retaliatory strikes on oil and natural gas facilities.
Context
What is “black rain,” according to experts?
Experts described it as rain that forms when soot, ash, and toxic chemicals in the air combine with water droplets and then fall back to the ground during precipitation; it is commonly associated with fires at oil refineries or oil fields, and can also occur after wildfires, volcanic eruptions, or industrial pollution Boston Globe,Independent,ET NOW.
What health concerns were raised in connection with the black rain in Tehran?
Residents reported acute symptoms such as burning eyes and breathing difficulties, and health officials/experts warned that exposure can carry short- and long-term health risks, prompting advice to take precautions such as staying indoors and wearing masks Business Standard,Los Angeles Times,Boston Globe.
Why did the black rain occur after the strikes on oil facilities?
The reports linked it to smoke from strikes on oil infrastructure: hazardous chemicals and soot released into the atmosphere can be washed out relatively quickly by rainfall, returning to the ground as polluted precipitation Boston Globe,ETV Bharat News,News18.
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