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Sign in to searchWHO Warning on “Black Rain”
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In March 2026, the World Health Organization (WHO) issued an emergency warning about the possibility of “black rain” and severe air pollution in Iran after attacks on oil facilities triggered large-scale fires. The burning of petroleum infrastructure released massive quantities of carbon soot, hydrocarbons, sulphur oxides, and nitrogen compounds into the atmosphere. These pollutants mixed with rain-bearing clouds, raising concerns about toxic rainfall and serious public health risks.
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WHO warns of black rain after Iran oil attacks. Learn about atmospheric scavenging, health risks from toxic rainfall, and environmental impacts of industrial pollution.
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