Is the dust on my car from the Iran war?

A few days ago, I woke to find my car covered with a fine sandy dust thick enough to write your name in. In the press, I saw I wasn't the only one and sand blown from the Sahara desert was blamed.

But I was wondering, could it actually be from Iran? The product of all the bombings. Is my car covered with the dust of crumpled buildings and dead people?

More importantly, if sand from Iran (or the Sahara desert) can reach the UK then surely radioactive sand would fall on us should Trump go nuclear.

Thoughts?
Is the dust on my car from the Iran war?
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