It's important to be specific about which "dust storms" you're referring to, as there have been many throughout history in different parts of the world. For example, are you asking about:

* The Dust Bowl of the 1930s in the American Midwest?

* Dust storms in the Sahara Desert?

* Dust storms in China?

* Ancient dust storms that have occurred throughout history?

Please provide more context so I can give you a more accurate and relevant answer.