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

The chemical quality of glass is what makes up its color.

VOA: special.2009.09.16

She says the GI project will protect the environment in this region and make sure that Kampot pepper keeps its high quality and is not mixed with lesser quality peppers.

VOA: standard.2009.04.16

Henderson,appearing on NBC, said General Motors is building a plan around four core brands and hopes to improve the quality of its vehicles to regain the confidence of the American consumer.

VOA: standard.2009.04.05