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Extensive farming combined with severe drought caused the Dust Bowl in the 1930s. Deep plowing on the Great Plains killed the natural grasses that kept soil in place, and the topsoil turned to dust and blew away.
Dust pneumonia facts Save this for later. Dust pneumonia is a medical condition that develops due to the excessive exposure to dust. This form of respiratory disorder affected a great number of people during 1930s in the US when the Dust bowl took place. The Dust bowl refers to a period of dust storms that affected American and Canadian prairies during a severe drought in1930s. The Dust Bowl caused ecological damage, agricultural depression and consequently economic and social disaster. Enormous amount of dust in the air caused dust pneumonia in large portion of the population and many died.