If the dust contains more than 400 ppm lead, do not allow turf access for children under the age of 6 years.

The powdery dust on his laboratory table, he says, "contains everything we hold dear."

Interplanetary dust, which falls on earth all the time, contains high levels of one isotope, helium-3.

The dust in the air contained minutely ground steel that had billowed up from the lower line.

Me best guess I've heard so far is an airborne dust containing some violent hallucinogen.

This Aeolian dust contains 3-5% iron and its deposition has fallen nearly 25% in recent decades.

Then Pasteur allowed the dust containing the microorganisms to mix with the broth.

Certain woods and their dust contain toxins that can produce severe allergic reactions.

"Will the dust contained in this pod be enoug,i to gain control of the dragon?"