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).
Aly Raisman is a professional gymnast and talented sports personality. U.S. She is two-time Olympian and won several of medals in her career. Early Life and Education. Raisman was born on May 25, 1994, in Needham, Massachusetts, U.S. She is an American by nationality and belongs to the white ethnic background.