acid dust

American  

noun

1. air-polluting particles of dust, usually wind-borne, having high concentrations of acid.

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Etymology

Origin of acid dust

First recorded in 1975–80

Example Sentences

Miners and their families sickened with high levels of cobalt and heavy metals in their urine and blood, cobalt dust in their lungs and — in some zones — yellow sulfuric acid dust caking their bodies and their homes.

From Los Angeles Times

Good places to apply the boric acid dust would be around plumbing lines and other openings that penetrate the wall.

From New York Times