Środowisko i energia · 19/05/1994
EPA Approves Colorado's PM-10 Implementation Plan, Amends Nonattainment Area Boundary
The US Environmental Protection Agency (EPA) has approved Colorado's State Implementation Plan (SIP) for particulate matter with an aerodynamic diameter less than or equal to 10 micrometers (PM-10), while also amending the nonattainment area boundary for the Pagosa Springs area.