Dioxin means the chemicals known as 2,3,7,8-Tetrachlorodibenzo-p-dioxin, or 2,3,7,8-TCDD.
Dioxin means all of the seven 2, 3, 7, 8-chlorinated dibenzo-p-dioxin congeners, ten 2, 3, 7, 8-chlorinated dibenzofuran congeners, and twelve coplanar polychlorinated biphenyl congeners in table 1 of this rule.
Examples of Dioxin in a sentence
A report in 2012 showed that Dioxin and PCB levels in food have fallen slightly since 2001.
Davies, “Agent Orange Dioxin Contamination in the Environment and Human Population in the Vicinity of Danang Airbase, Viet Nam,” Hatfield Consultants, Ltd.
Standardized Toolkit for Identification and Quantification of Dioxin and Furan Releases.
United States and Vietnam Sign Memorandum of Intent to Begin Dioxin Remediation at Bien Hoa,” press release, January 23, 2018.
Data on Bien Hoa airbase in this section largely come from Hatfield’s report, Environmental and Human Health Assessment of Dioxin Contamination at Bien Hoa Airbase, Viet Nam: Final Report, August 2011.
More Definitions of Dioxin
Dioxin or “dioxins” or “furan” or “furans” shall mean the seventeen chlorinated dibenzo-p-dioxins and chlorinated dibenzofurans identified by the World Health Organization in The 2005 World Health Organization Re-evaluation of Human and Mammalian Toxic Equivalency Factors for Dioxins and Dioxin-like Compounds, and as set forth below: Congener (Full-Name) Congener (Abbreviation) CAS No Dioxins 2,3,7,8-Tetrachlorodibenzo-p-dioxin 2,3,7,8-TCDD 1746-01-6 1,2,3,7,8-Pentachlorodibenzo-p-dioxin 1,2,3,7,8-PCDD 00000-00-0 1,2,3,4,7,8- Hexachlorodibenzo-p-dioxin 1,4-HxCDD 00000-00-0 1,2,3,6,7,8- Hexachlorodibenzo-p-dioxin 1,6-HxCDD 00000-00-0 1,2,3,7,8,9- Hexachlorodibenzo-p-dioxin 1,9-HxCDD 00000-00-0 1,2,3,4,6,7,8- Heptachlorodibenzo-p-dioxin 1,4,8-HpCDD 00000-00-0 1,2,3,4,6,7,8,9-Octachlorodibenzo-p-dioxin OCDD 3268-87-9 Furans 2,3,7,8-Tetrachlorodibenzofuran 2,3,7,8-TCDF 00000-00-0 1,2,3,7,8-Pentachlorodibenzofuran 1,2,3,7,8-PCDF 00000-00-0 2,3,4,7,8-Pentachlorodibenzofuran 2,3,4,7,8-PCDF 00000-00-0 1,2,3,4,7,8-Hexachlorodibenzofuran 1,4-HxCDF 00000-00-0 1,2,3,6,7,8- Hexachlorodibenzofuran 1,6-HxCDF 00000-00-0 1,2,3,7,8,9- Hexachlorodibenzofuran 1,9-HxCDF 00000-00-0 2,3,4,6,7,8- Hexachlorodibenzofuran 4,6-HxCDF 00000-00-0 1,2,3,4,6,7,8- Heptachlorodibenzofuran 1,4,6-HpCDF 00000-00-0 1,2,3,4,7,8,9- Heptachlorodibenzofuran 1,4,9-HpCDF 00000-00-0 1,2,3,4,6,7,8,9-Octachlorodibenzofuran OCDF 00000-00-0 Individual dioxins and furans are assessed using a toxic equivalency factor (“TEF”), which is an estimate of the relative toxicity of the compounds to 2,3,7,8- tetrachlorodibenzo-p-dioxin. These converted concentrations are then added together to determine the “toxic equivalence concentration” (“TEQ”) of the dioxin and furan compounds as a whole.
Dioxin means all of the seven 2,3,7,8 chlorinated dibenzo-p-dioxin congeners, ten 2,3,7,8 chlorinated dibenzofuran congeners, and twelve coplanar polychlorinated biphenyl congeners as follows.
Dioxin means all of the seven 2, 3, 7, 8-chlorinated dibenzo-p-dioxin congeners, ten 2, 3, 7, 8-chlorinated dibenzofuran congeners, and twelve coplanar polychlorinated biphenyl congeners in the following table:
Dioxin means 2,3,7,8- tetrachlorodibenzo-p-dioxin (“TCDD”) and dioxin-like compounds.
Dioxin means polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans.
Dioxin means polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans. “ng” means nanogram, equivalent to 10 -9 grams.
Dioxin refers to a large family of similar chemicals, including furans. The United States Environmental Protection Agency (U.S. EPA) has concluded that dioxin may cause cancer or other human health effects such as skin problems, liver damage, and reproductive issues, depending on exposures. Dioxin is not created intentionally; in this case, xxxxxx formed as a byproduct of Dow’s early manufacturing processes. This Action Memorandum discusses dioxin concentrations as the toxic equivalence quotient (TEQ) – a summed estimate of the relative toxicity of the congeners as compared to 2,3,7,8- tetrachlorodibenzo-p-dioxin. The proposed response actions include removing contaminated soil in people’s yards, replacing it with clean soil, and restoring grasses and plants. Eligible residential properties are those where soil tests show dioxin levels greater than the site-specific residential cleanup number of 250 parts per trillion parts (ppt) TEQ. U.S. EPA and Dow have agreed to enter into an Administrative Settlement Agreement and Order on Consent (MGI AOC), pursuant to which Dow will perform the removal action described herein with U.S. EPA oversight. This action will be conducted in accordance with Section 104(a)(1) of the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), 42 U.S.C. § 9604(a)(1), and 40 C.F.R. § 300.415 (Removal Action) of the National Oil and Hazardous Substances Pollution Contingency Plan (NCP) to xxxxx or eliminate the threats posed to public health and/or the environment. U.S. EPA has consulted, and will continue to consult with, the Michigan Department of Environment, Great Lakes, and Energy (EGLE)1 on MGI response actions. This action is anticipated to require one construction season to implement and is expected to begin in 2021. This action will be implemented by Dow, the potentially responsible party, under a CERCLA Section 106/122 agreement. As such, pursuant to NCP Section 300.415(k)(3), the requirements to terminate response after $2 million has been obligated or 12 months have elapsed from the date of the initial response do not apply.