[#item_title] On this page: About the 2014 Assessment This page provides the emissions data, ambient concentrations and health-effect results for the 2014 National Air Toxics Assessment. You can also find links to supporting files and web pages with more information about these results. EPA developed NATA as a screening tool for state, local and tribal air agencies. NATA’s results help these agencies...
Photo by Jordi Busqué (jordibusque.com) of the AURA Observatory International Dark Sky Sanctuary, Chile. Below is the Press Release that was released on January 6th by the Lowell Observatory and National Optical Astronomy Observatory. John Barentine, IDA’s Program Manager, participated in the AAS Workshop in Grapevine, TX. JOINT PRESS RELEASE: LOWELL OBSERVATORY, NATIONAL OPTICAL ASTRONOMY OBSERVATORY Artificial light glow is...
READ MORE Press Release: Protecting Dark Skies for Astronomy and Life
[#item_title] On this page: About the 2011 Assessment This page provides the inventory inputs, ambient and exposure concentrations, and results for the 2011 National-scale Air Toxics Assessments. There are also links to supporting files and web pages. EPA suggests that the results of this assessment be used cautiously, as the overall quality and uncertainties of the assessment will vary from...
[#item_title] WASHINGTON – Today, Sen. Tom Carper (D-Del.), Chairman of the Subcommittee on Clean Air, and Rep. Scott Peters (CA-52), led a group of 16 lawmakers who signed a letter in a bicameral effort urging the U.S. Environmental Protection Agency (EPA) Administrator Gina McCarthy to use the agency’s authority to reduce the use of hydrofluorocarbon (HFCs) compounds which could account...
