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).
Name Siya generally means Sita, is of Indian origin, Name Siya is a Feminine (or Girl) name. Person with name Siya are mainly Hindu by religion.Name Siya belongs to rashi Kumbh (Aquarius) with dominant planet Saturn (Shani) and Nakshatra (stars) Sathabisham.ind qualities of Aquarius (Kumbh) or Find Numerology, Lucky number, lucky days, lucky color, Auspicious stones for Siya or Find Chinese zodiac sign or Birthstone for your birthday or Find compatibility of Kumbh (Aquarius) with other zodiac signs.