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).
Riya is very beautiful girl its my angle daughter's name she is my life and she is very precious for me. Riya is such a sweet name in hindi, i am looking the meaning of this name because my mother ask me to search it for my niece.My grand ma recommend me the name Riya to my daughter because it is a very precious name which called singer in sanskrit.iya is very beautiful girl its my angle daughter's name she is my life and she is very precious for me. Riya is such a sweet name in hindi, i am looking the meaning of this name because my mother ask me to search it for my niece.