National Ambient Air Quality Standards (NAAQS) The Clean Air Act, which was last amended in 1990, requires EPA to set National Ambient Air Quality Standards (40 CFR part 50) for pollutants considered harmful to public health and the environment. The Clean Air Act identifies two types of national ambient air quality standards.
Riya Jain is an actress, known for Apartment: Rent at Your Own Risk (2010).
Etymology & Historical Origin-Riya. Riya is a Hindu name (à¤°à¤¿à¤¯à¤¾) and means âsingerâ in Sanskrit. Because the name is Hindu in origin it is rarely used among English-speakers in the Western World. It is common among Indian immigrants to the West but it has yet to be adopted by the general population.iya is a pretty yet simple example of this: it has a lovely meaning (i.e., singer) and a soft delicate sound. Popularity of the Girl Name Riya. You need Adobe Flash Player 6 (or above) to view the charts. It is a free and lightweight installation from Adobe.com.