The World Health Organisation warned on Tuesday that the "black rain" and toxic compounds in the air in Iran after strikes on oil facilities could cause respiratory problems, and it backed Iran’s advisory urging people to remain indoors. The UN health agency, which has an office in Iran and works with authorities on health emergencies, said it has received multiple reports of oil-laden rain this week. ADVERTISEMENT"The black rain and the acidic rain coming with it is indeed a danger for the population, respiratory mainly," WHO spokesperson Christian Lindmeier told a press briefing in Geneva, adding that Iran had advised people to stay indoors. Scientists said that the black rain was the result of a weather pattern coming into the area, bringing rain that combined with the particles in the air. The air quality is also likely to improve over time, he added.
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