At age four, they were also given a skin-prick test to see if they had any of the most common allergies, including dust mite, animal fur, pollen, milk, eggs or peanuts.
BBC: Doctors could predict which children are at risk of asthma
Of course, the U.S. has experienced many severe droughts during the past century, including the Dust Bowl that produced major ecological and agricultural damage throughout American and Canadian prairies from 1930-36 (and in some areas, until 1940).
An affidavit released earlier said investigators conducted searches of Dutschke's home and former place of business and found incriminating items including latex gloves and a dust mask.
CNN: Mississippi man indicted in case of ricin letters to Obama, others
They have also resulted in severe environmental consequences globally due to nutrient mismanagement, including the great U.S. Dust Bowl of the 1930s, and, more recently, massive plumes of nutrient runoff in areas like the Chesapeake Bay and the Gulf of Mexico, which are creating huge marine dead zones.
FORBES: How a Nutrient Economy Can Save Our Farmers, Our Health and Our Environment
Also weighing on Obama and his aides as he decides how to proceed is the unpleasant memory of previous dust-ups over contraception, including an election-year spat over an element of Obama's health care overhaul law that required most employers to cover birth control free of charge to female workers as a preventive service.
Meanwhile various unsigned bilateral agreements, including a crucial one on energy, are gathering dust in Brussels.
Do we want to look back decades from now and recognize that at this critical juncture in history, America, through its inaction, cemented its future on the dust heap of former world powers, including the Roman, Ottoman, British or Soviet empires?
FORBES: Hurricanes Drive Home Appeal Of Alternative Energy Sources
"I don't think anyone in the industry, including ourselves, were fully aware of the potential of dust as a hazard, " Mr. Mechler said.
WSJ: Imperial Sugar to Pay Fines in Deadly Georgia Explosion Case
Olympus has managed to carve out a niche in the competitive DSLR market by including features that you won't find on cameras from Canon or Nikon, such as its ultrasonic dust-removal system.
应用推荐