Under the Guidelines for Carcinogen Risk Assessment (U.S. EPA, 2005a), the database for thallium and compounds provides "inadequate information to assess carcinogenic potential." This may be a synopsis of the full weight-of-evidence narrative. Quantitative Estimate of Carcinogenic Risk from Oral Exposure (PDF) (17 pp, 137 K) Not …

The objectives of this project were to assess (1) fate of thallium by conducting speciation analysis and determining the influence of water quality on toxicity and (2) effects of …

Thallium (I) Nitrate CASRN 1. Provisional Peer-Reviewed Toxicity Values for Thallium (I) Nitrate; ... Estimate of Subchronic Reference Dose for Oral Exposure (RfD) Last Updated: 11/01/2012 See attachment to the assessment's appendix for quantitative screening values. Estimate of Chronic Reference Concentration for …

Abstract. Thallium ecotoxicity was assessed in laboratory model experiments by changing in microbiologi-cal, biochemical, and phytotoxic properties of soils in the South of Russia: ordinary ...

Thallium is recognised as a priority pollutant in freshwater ecosystems and more acutely toxic to mammals than As, Cu, Hg, Cd, Pb, and Zn but is still not regulated as part of the Water Framework ...

Chemical Assessment Summary National Center for Environmental Assessment 1 Thallium (I), soluble salts; CASRN Various Human health assessment information on a chemical substance is included in the IRIS database only after a comprehensive review of toxicity data, as outlined in the . IRIS assessment development process.

The usual assessment for viability consists of rest imaging and metabolic imaging with 18 F-FDG. In areas without resting perfusion as shown with N-13 ammonia or rubidium-82, presence of 18 F-FDG uptake indicates viability. Compared to SPECT, PET has higher spatial resolution, lower radiation, and has better attenuation correction.

BCR sequential extraction scheme can be employed to understand the association of thallium to the relevant phase in the soil matrix. 1 M HCl extraction for 24 h can usefully be utilized to assess the maximum amount of leachable thallium as it extracts approximately total amount of thallium from all the combined steps of BCR 1, 2 and 3.

The assessment considered all thallium-containing substances that may release thallium, as well as thallium in its elemental form, and thallium released to the environment in dissolved, solid or particulate forms. This included 3 thallium-containing substances listed on the Domestic Substances List, 1 on the Revised In Commerce List …

Wildlife Toxicity Assessment for Thallium. Desmond I. Bannon, in Wildlife Toxicity Assessments for Chemicals of Military Concern, 2015 Introduction. Thallium, found between mercury and lead in the periodic table, is a metallic element that occurs in the earth's crust at a concentration of 0.3–0.6 ppm. Thallium is frequently found in sulfur …

TECHNIQUES FOR ASSESSING MYOCARDIAL VIABILITY. Thallium-201 radionuclide myocardial perfusion imaging — Thallium-201 was introduced as a …

Toxicological Review (PDF) (165 pp, 1.0 M) IRIS Summary (PDF) (17 pp, 137 K) This assessment supports multiple thallium compounds - see related topics for a …

Genotoxicity assessment of human peripheral Lymphocytes induced by thallium(I) and thallium(III) ... Thallium is a highly toxic metal and is anthropogenically concentrated in environments

assessment and in the general risk assessment. Thallium: In the case of thallium, it is known that its salts can cause a wide spectrum of adverse effects in humans and animals, and thallium is ...

This paper provides an overview of the contamination of surface water and sediments by Tl across China and assesses the potential risks using several methods. The acute and chronic aquatic life criteria for Tl were determined to be 13.25 and 1.65 μg/L, respectively. The acute and chronic risk quotients (RQs) of Tl in surface water near …

The obtained data was used for assessment of thallium concentrations, which may be valuable during research focused on new sources of contamination with this toxic metal. ... Carson WG. Thallium: occurrence in the environment and toxicity to fish. Bulletin of Environmental Contamination and Toxicology. 1975; 13:23–30. doi: …

Chemical Assessment Summary National Center for Environmental Assessment 1 Thallium selenite; CASRN 1 Human health assessment information on a chemical substance is included in the IRIS database only after a comprehensive review of toxicity data, as outlined in the . IRIS assessment development process.

As the largest freshwater lake in China, water environmental pollution in Poyang Lake is increasingly attracting attention. However, to date, the occurrence of seldom-monitored trace elements (SMTEs) (such as thallium (Tl) and cobalt (Co)) and their potential ecological influences in the Poyang Lake area remain unclear. Here, geochemical …

The exploitation of thallium (Tl) resources through mining poses a significant threat to ecological systems and human health due to its high toxicity and ready assimilation by human body. We report the first assessment of the pollution, spatial distribution, source, and ecological-health risks of potentially toxic elements (PTEs) in Tl mining area of …

The objectives of this project were to assess (1) fate of thallium by conducting speciation analysis and determining the influence of water quality on toxicity …

Thallium (Tl) is a non-essential toxic metal that is found in the earth's crust at 0.3–0.6 ppm. A range of applications have used thallium; from rodenticide, where its toxicity has been well described, to more modern applications in electronics and cardiac imaging. Ionized thallium, in the form of thallous ion, mimics the chemistry of ...

Basis: Under the Guidelines for Carcinogen Risk Assessment (U.S. EPA, 2005a), the database for thallium and compounds provides "inadequate information to assess carcinogenic potential." This may be a synopsis of the full weight-of-evidence narrative. Quantitative Estimate of Carcinogenic Risk from Oral Exposure (PDF) (17 pp, …

Under the Guidelines for Carcinogen Risk Assessment (U.S. EPA, 2005a), the database for thallium and compounds provides "inadequate information to assess carcinogenic potential." This may be a synopsis of the full weight-of-evidence narrative.

Final 11-01-2012. Provisional Peer-Reviewed Toxicity Values for. Thallium and Compounds. Metallic Thallium (), Thallium (I) acetate (563-68-8), Thallium …

Thallium sulfate is a metal sulfate in which the counterion is thallium and the ratio of thallium to sulfate is 2:1. It is a rodenticide used to control rats, squirrels, mice, moles, prairie dogs, ants and cockroaches. It is no …

1 State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental ... in bioaugmentation columns and the in situ-generated BMnOx for continuous thallium(I) (Tl(I)) removal from groundwater were investigated. Results indicated that Pseudomonas Putida MnB1 (strain MnB1) attached …

Thallium contents in edible parts of vegetables varied from 0.33 to 20.33 mg/kg, generally exceeding the MPL for Tl (0.5 mg/kg). High hazard quotients for Tl in most of the vegetables (HQ > 1, even up to 31.6) imply a huge risk by vegetable intake to …