During one week in nineteen forty-eight, poisonous air in a nearby town killed twenty people and sickened six thousand others.

VOA: special.2009.07.13

Chemical sprays like air fresheners,hair spray, household cleaning products and even strong perfumes can also trigger an asthma attack.

VOA: special.2009.07.28

Every year,moist air masses known as monsoon produce large amounts of rainfall in India,East Asia, northern Australia and East Africa.

VOA: special.2010.05.25

It is a line drawing made out of aluminum wire that looks like a wavy net floating in mid-air.

VOA: special.2009.05.06

The American Lung Association said Pittsburgh was last in the nation in one of three measures of air quality.

VOA: special.2009.07.13

When his head came out of the water for air, he saw that he was farther away from the soldiers.

VOA: special.2011.05.28

Critics accused European air transport officials of being slow to react, then overreacting to the possible risk to airplanes.

VOA: special.2010.04.23

"That will not have any appreciable or noticeable impact on the air traffic control infrastructure in the foreseeable future today.

VOA: special.2011.07.11

But Arctic air has damaged some Florida oranges and strawberries in recent days, and killed fish at tropical fish farms.

VOA: special.2010.01.12

The Centers for Disease Control says HEPA filters are effective in clearing the air of many particles that cause disease.

VOA: special.2009.07.14

A spokeswoman for the mayor's office, Joanna Dovan,says the Pittsburgh area has been working to improve its air quality.

VOA: special.2009.07.13

Mars has less gravity. My attempts to walk resulted in jumps and hops, which took me into the air.

VOA: special.2010.07.10

But Chesley Sullenberger is also an expert on air safety, including accident investigations, and even has his own consulting business.

VOA: special.2009.01.30

People did not object to making young children work long hours, in places that had bad air and bad light.

VOA: special.2010.08.01