11.   The remainder, in the form of shrapnel or dust, contains radioactive particles which can be inhaled or enter the body through wounds.

12.   The tagging particles are also contained in the materials used to construct those buildings.

13.   The smoke contains tiny particles that do the damage.

14.   The vapor contains insulin particles, far smaller than specks of dust, bound with water molecules.

15.   The title of the show that opened while the rubble of the World Trade Center continued to burn and the air contained debris particles?

16.   This beam will be targeted at a reactor on Earth containing particles of titanium dioxide, suspended in water.

17.   Astronaut Fred Leslie worked with a series of transparent tools containing particles of volcanic dust.