Update to An Inventory of Sources and Environmental Releases of Dioxin-Like Compounds in the United States for the Years 1987, 1995, and 2000 (2013, External Review Draft)
EPA is announcing the availability of the draft report, Update to An Inventory of Sources and Environmental Releases of Dioxin-Like Compounds in the United States for the Years 1987, 1995, and 2000 for a 30-day public comment period. EPA also announced that an independent contractor will select and set up a group of experts to conduct a letter peer-review of the draft document. The deadline for comments is September 6, 2013. [Federal Register Notice August 7, 2013]
In 2006, EPA published an inventory of sources and environmental releases of dioxin-like compounds in the United States. This draft report presents an update and revision to that dioxin source inventory. It also presents updated estimates of environmental releases of dioxin-like compounds to the air, water, land and products. The sources are grouped into five broad categories: combustion sources, metals smelting/refining, chemical manufacturing, natural sources, and environmental reservoirs. Estimates of annual releases to land, air, and water are presented for reference years 1987, 1995, and 2000.
While the overall decreasing trend in emissions seen in the original report continues, the individual dioxin releases in this draft updated report are generally higher than the values reported in 2006. This is largely due to the inclusion (in all three years) of additional sources in the quantitative inventory that were not included in the 2006 report. The largest new source included in this draft updated inventory was forest fires. In the 2006 report, this was classified as preliminary and not included in the quantitative inventory. The top three air sources of dioxin emissions in 2000 were forest fires, backyard burning of trash, and medical waste incinerators.
|1995||EPA's Science Advisory Board (SAB) reviewed EPA's Dioxin Reassessment. The SAB recommended that EPA undertake a detailed assessment of sources of dioxin.|
|1998||In response to the recommendation of the SAB, EPA released the first external review draft report entitled, The Inventory of Sources of Dioxin in the United States (EPA/600/P-98/002Aa).|
|1999||EPA began the development of the year 2000 update to the dioxin inventory.|
|Jun 2001||EPA released an electronic Database of Sources of Environmental Releases of Dioxin-Like Compounds in the United States containing dioxin emission factors specific for releases from sources in reference years 1987 and 1995.|
|May 2005||EPA released the external review draft of the dioxin updated inventory for public comment and peer review. A panel of six internationally known experts convened in September to formally review and comment on the draft report.|
|Nov 2006||The final inventory of Dioxin sources was released incorporating comments received from the public and the formal peer review panel.|
|Aug 2013||EPA released a draft updated inventory of sources for public review and comment and external review. [Federal Register Notice Aug 7, 2013]|
This download(s) is distributed solely for the purpose of pre-dissemination peer review under applicable information quality guidelines. It has not been formally disseminated by EPA. It does not represent and should not be construed to represent any Agency determination or policy.
- (409 pp, 3 MB, about PDF)