Regulacje i polityka gospodarcza · 22/10/2002

Wallula PM10 Nonattainment Area in Washington Attains National Ambient Air Quality Standards

The Environmental Protection Agency (EPA) has confirmed that the Wallula area in Washington state has met the national standards for particulate matter, as mandated by the Clean Air Act, effective January 1, 2002. This marks the attainment of the National Ambient Air Quality Standards for PM10, a key air quality metric.