dioxin contamination Articles
-
Cardiac toxicity by sublethal 2,3,7,8‐tetrachlorodibenzo‐p‐dioxin correlates with its anti‐proliferation effect upon cardiomyocytes in zebrafish embryos
The cardiac toxicity of zebrafish embryos in response to the lethal dose of 2,3,7,8‐tetrachlorodibenzo‐p‐dioxin (TCDD) has been well characterized. However dioxin contamination levels in nature are usually lower and sublethal TCDD toxicity is less investigated. We found that for the 72 hours post fertilization (hpf) zebrafish embryos, the non‐lethal doses of TCDD were 25 pg/ml and lower. 10 ...
-
Maternally transferred dioxin‐like compounds can affect the reproductive success of European eel
Reported concentrations of dioxin‐like compounds accumulated in the European eel (Anguilla anguilla) were used to perform a risk assessment for eel larval survival, taking into account a modelled amplification of tissue concentrations with a factor of 1.33 during spawning migration. The calculated concentrations of dioxin‐like compounds finally deposited in the eggs were compared to the ...
-
Technology Selection and Conceptual Design for Cleanup of Dioxin Contamination at the Da Nang Airport Hot Spot, Viet Nam
Large volumes of Agent Orange and other defoliants were handled at former United States (U.S.) military bases during the U.S.-Viet Nam War. Agent Orange was contaminated by 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), a toxic chemical that has been associated with a range of health concerns. The airports at Da Nang, Bien Hoa, and Phu Cat have been identified as the most contaminated of the ...
-
In-Pile thermal desorption for treatment of Dioxin-Contaminated soil in Japan
Abstract A demonstration of thermal treatment of dioxin-contaminated soil was completed in Japan, under the sponsorship of the Japan Ministry of the Environment. TerraTherm’s proprietary In-Pile Thermal Desorption process was demonstrated to successfully treat the soil to the required standard of 1,000 picograms of 2,3,7,8-tetrachlorodibenzodioxin (TCDD) toxic equivalents (TEQ) per gram ...
-
The Tozzi Decision: Another Arrow in Manufacturers’ Quiver in Product Defense Wars
On November 23, 2001, the United States Court of Appeals for the D.C. Circuit gave parties aggrieved by flawed government characterizations of chemical products reason to cheer. In Tozzi v. Department of Health and Human Services,1 the court rejected the government’s argument that a medical plastic tubing manufacturer lacked Article III standing to sue the U.S. Department of Health and Human ...
-
On-Site Thermal Desorption of PCP- and Dioxin-Contaminated Soil at the Coleman-Evans Wood Preserving Site, Whitehouse, Florida, USA
ABSTRACT Roy F. Weston, Inc. (WESTON®) has designed an indirect thermal desorption process (known as the LT3-HT) to treat solids and sludges contaminated with hazardous and toxic materials. The LT3-HT is a high-temperature, high-capacity thermal desorption system designed for treatment of semivolatile and volatile organic contaminants that require high treatment temperatures. The LT3-HT ...
-
Perinatal dioxin exposure in The Netherlands – a long-term follow-up
In 1987, a cohort study was initiated in the Amsterdam/Zaandam region of The Netherlands to study possible effects of dioxins on development and growth in a population of breastfed children selected after an optimal pregnancy and delivery and birth weight above 2500 grams. Effects on thyroid hormone metabolism, liver, haematology and immunology, and retinol binding protein were found in neonates. ...
-
In-Situ thermal treatment of MGP waste and creosote
Abstract: Remediation of coal tar at former Manufactured Gas Plant (MGP) sites, and creosote associated with wood preservative sites is challenging due to the viscous nature of the dense non-aqueous phase liquid (DNAPL) and the modest solubility and vapor pressure of the contaminants of concern (COCs). DNAPL seepage into surface water bodies, as well as groundwater plumes formed by the most ...
-
Estrogen-like and dioxin-like organic contaminants in reclaimed wastewater: transfer to irrigated soil and groundwater
In semi-arid regions, treated wastewater reuse for irrigation is a common practice since wastewater is considered as a non negligible water resource in these areas. However, treated wastewater contains traces of organic compounds which may contaminate the receiving environment i.e. soil and groundwater. Some of these organic compounds have the ability to bind to estrogen receptor (ER) or dioxin ...
-
Dehalogenation
Introduction: Contaminated soil is screened, processed with a crusher and pug mill, and mixed with reagents. The mixture is heated in a reactor. The dehalogenation process is achieved by either the replacement of the halogen molecules or the decomposition and partial volatilization of the contaminants. Base-catalyzed Decomposition (BCD) Base-catalyzed decomposition (BCD) process was developed ...
-
Superfund Remediation: The Key to Land Reuse - Case Study
The technology is ready and, with state and federal tax credits waiting, the economics look better than ever: New Jersey, one of the first states to be industrialized, finds itself plagued with the contaminated aftermath of pre-EPA industries: soil contamination. From superfund sites to the gas station whose underground storage tank has been oozing for the last 20 years, every industry has ...
-
Remote Islands - Medical Waste - Case Study
Location: Pacific Ocean Clients: PacWaste / SPREP Waste Type: Medical & Hazardous waste Solution(s) Supplied: i8-M15, i8M-60, i8M-75 The PacWaste project consisted of the installation and commissioning of 26 state-of-the-art healthcare waste incinerators in Kiribati, Tonga, Tuvalu and Vanuatu These high temperature medical incinerators ensure that biohazardous waste (such as pathological, ...
-
Guidelines for the use of mosses and soils in monitoring contaminant fallout
In 1999 Italy’s Environmental Protection Agency (ANPA) published a paper on the methods to be used in the case of mosses and soils. After nearly a decade, a review is advisable. The attached Guidelines take account of numerous experiments in the environmental field and include a short description of bryophyte biology. A great many pollutants are present in our environment. In addition to ...
-
Inciner8’s medical waste solution in the Pacific
The PacWaste project has now begun the installation and commissioning of a range of state-of-the-art healthcare waste incinerators in Kiribati, Tonga, Tuvalu and Vanuatu. These high temperature medical incinerators ensure that biohazardous waste (such as pathological, Type I – IV, Pharmaceuticals) will be treated in accordance with international guidelines on the safe processing of ...
-
DNAPL stabilization using Organoclay at superfund site in Virigina - Case Study
The Atlantic Wood Industries (AWI) site is approximately 48 acres of land on the industrialized waterfront of Portsmouth, Virginia, along the Southern Branch of the Elizabeth River. From 1926 to 1992, a woodtreating facility operated at the site using both creosote and pentachlorophenol (PCP). Project Details Atlantic Woods Industries CQA Engineer: EA Engineering, Science and Technology ...
By CETCO
-
Dioxines and furanes - Case Study
Example: Scrap copper recycling, cobalt for battery production Similar tasks: Metal recycling, roast processes, thermal waste disposal When recycling metals - as in scrap copper recycling (mostly cable material) - toxic waste gases often occur. The raw materials to be recycled are injected in a shaft kiln that emits dust, organic contaminants, carbon monoxide, dioxins as well as furans. A high ...
-
The Elbe Flood in August 2002—Organic Contaminants in Sediment Samples Taken After the Flood Event
Abstract In the course of this study 37 sediment samples were analyzed. They were taken after the flooding in September 2002 along the Elbe and at the mouths of its major tributaries. The sampling program covered the entire river stretch that was affected by the floods, from Obristvi (Czech Republic) to the Elbe estuary (North Sea) on the German coast. Analyses were performed for dioxins, ...
By QuoData GmbH
-
Swan Hills Treatment Centre – Canada`s only fully-integrated hazardous waste treatment facility
Untitled Document Since the enactment of environmental laws and regulations in Canada and the United States in the 1970s and 1980s, many treatment and disposal options for hazardous wastes have come and gone. Despite the development of new technologies over the years, incineration continues to be the “tried and true” method to dispose of wastes and offers the best solution to ...
-
A Citizen`s Guide to Chemical Dehalogenation
What is chemical dehalogenation? Chemical dehalogenation is a chemical process to remove halogens (usually chlorine) from a chemical contaminant, rendering it less hazardous. Halogens are a class of chemical elements that include chlorine, bromine, iodine, and fluorine. Polychlorinated biphenyls are halogenated compounds that once were used in high voltage electrical transformers because they ...
-
Chlorine Monitoring
Elemental chlorine is a highly reactive, greenish-yellow gas. It has a suffocating, irritating, and pungent bleach-like odour that is detectable at low concentrations (above 0.3 – 0.5 ppm). Therefore, continuous or high-level exposure of the Cl2 can quickly deaden a person’s sense of smell, making the odour of Cl2 an unreliable indicator of its presence. Hence, other means such as ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you