This document presents the most recent estimates of national emissions of the criteria air pollutants. The emissions of each pollutant are estimated for many different source categories, which collectively account for all anthropogenic emissions.

EPA Responses to Peer Reviewers' Comments based on specific questions and topics.

The Patriot Act of 2001 defined critical infrastructure as assets so vital to the United States that their incapacity or destruction would have a debilitating impact on public health or safety. Homeland Security Presidential Directive No. 7, December 17, 2003, required federal agencies to identify, prioritize, and protect Critical Infrastructure and Key Resources Protection Plan (CIPP) assets. EPA's December 2004 CIPP identified RadNet monitors as critical infrastructure. The June 2008 Nuclear/Radiological Incident Annex to the National Response Framework lists EPA and RadNet as a key federal...

Attached is the semiannual Compendium of Unimplemented Recommendations as of March 31, 2014, prepared by the Office of Inspector General (OIG) of the U.S. Environmental Protection Agency (EPA). By law, the OIG serves as the Inspector General for the U.S. Chemical Safety and Hazard Investigation Board (CSB) as well as the EPA. As such, this report includes information pertaining to the EPA and the CSB. This Compendium fulfills the Inspector General Act of 1978, as amended, requirement to include an identification of each significant recommendation described in previous semiannual reports on...

The discussion draft concluded that EPA should recover all costs incurred ($1,192,500) under the grant. Both the NCREDC and Region 4 disagreed with the discussion draft findings. In its September 11, 2009, response, the NCREDC stated that the findings resulted from a misunderstanding about the manner in which costs were allocated to multiple funding sources, and from differences in its interpretations of regulations regarding federal grant administration. The NCREDC believes it spent EPA funds in an appropriate manner on a project of significance for the people of North Carolina. At the time...

The discovery of a variety of pharmaceuticals in surface, ground, and drinking waters around the country has raised concerns about the potentially adverse environmental consequences of these contaminants. Although the effects on humans are unknown, the U.S. Government Accountability Office (GAO) reports that some research has demonstrated the potential impact to human health from exposure to pharmaceuticals found in drinking water, such as antibiotics and those that interfere with human hormone development. In addition, minute concentrations of some pharmaceuticals can have detrimental...

EPA OIG has policies and procedures or other guidance to satisfy Silver Book requirements in all except one area. The one area lacking guidance pertains to training for the auditors and evaluators and the responsibility of key managers to ensure their staff members have the skills necessary to match the OIG's needs. We noted that 21 of the 28 policies and procedures reviewed, or 75 percent, are past the required review date prescribed by EPA OIG Policy 001, OIG Directives System. Of those 21 that are out of date, 48 percent are at least 3 years overdue for review/update. We concluded that our...

In planning and performing our audit, we considered EPA's internal control over the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) financial reporting by obtaining an understanding of the Agency's internal controls, determining whether internal controls had been placed in operation, assessing control risk, and performing tests of controls. We did this as a basis for designing our auditing procedures for the purpose of expressing an opinion on the financial statements and to comply with OMB audit guidance, not to express an opinion on internal control. Accordingly, we do not...

The 1992 Residential Lead-Based Paint Hazard Reduction Act established Title IV of the Toxic Substances Control Act (TSCA). TSCA required EPA to issue a rule by 1996 to regulate the lead hazards created from renovation work. In 2005, EPA was sued by environmental groups for failure to issue the Lead Rule by 1996. In a January 2008 settlement agreement, EPA committed to issuing the Lead Rule on or before March 31, 2008. In addition, under the Consolidated Appropriations Act of 2008, the EPA Administrator was directed to finalize the Lead Rule by March 31, 2008. EPA issued the final rule on...