Results 11 to 20 of about 9,747,189 (202)

Using the current Brazilian value for the biological exposure limit applied to blood lead level as a lead poisoning diagnostic criterion

Cadernos de Saúde Pública
In general, biological exposure limits are only used for the promotion and preservation of workers' health and are not applied for diagnostic purposes. However, the issue is controversial for certain types of occupational poisoning.
Ricardo Cordeiro
doaj   +3 more sources

Radiological safety assessment of lead shielded spent resin treatment facility with the treatment capacity of 1 ton/day

Nuclear Engineering and Technology, 2021
The radiological safety of the spent resin treatment facility with a14C treatment capacity of 1 ton/day was evaluated in terms of the external and internal exposure of worker according to operation scenario. In terms of external dose, the annual dose for
Jaehoon Byun, Woo Nyun Choi, Hee Reyoung Kim   +2 more
doaj   +1 more source

Observational and model evidence together support wide-spread exposure to noncompensable heat under continued global warming

Science Advances, 2023
As our planet warms, a critical research question is when and where temperatures will exceed the limits of what the human body can tolerate. Past modeling efforts have investigated the 35°C wet-bulb threshold, proposed as a theoretical upper limit to ...
Carter M Powis, David Byrne, Zachary Zobel, Kelly N Gassert, A. Lute, C. R. Schwalm   +5 more
semanticscholar   +1 more source

Health risks from multiroute exposure of potentially toxic elements in a coastal community: a probabilistic risk approach in Pangkep Regency, Indonesia

Geomatics, Natural Hazards & Risk, 2022
Populations in coastal areas are vulnerable to chronic exposure to potentially toxic elements (PTEs) from aquatic ecosystems. In this study, we estimated the health risks from Cd, Cr, Fe, and Pb exposure in river water, sediments, and edible aquatic ...
Ratna Dwi Puji Astuti, Anwar Mallongi, Kyungho Choi, Ridwan Amiruddin, Muhammad Hatta, Kraichat Tantrakarnapa, Annisa Utami Rauf   +6 more
doaj   +1 more source

Exposure Assessment of Silver and Gold Nanoparticles Generated During the Synthesis Process in a South African Research Laboratory

Frontiers in Toxicology, 2022
During the synthesis of engineered nanomaterials (ENMs), various occupational exposures occur, leading to health consequences. To date, there is paucity of studies focused on modeling the deposition of nanoparticles emitted from ENMs synthesis processes.
Masilu D. Masekameni, Charlene Andraos, Il Je Yu, Mary Gulumian, Mary Gulumian   +4 more
doaj   +1 more source

A Human-Relevant 3D In Vitro Platform for an Effective and Rapid Simulation of Workplace Exposure to Nanoparticles: Silica Nanoparticles as Case Study

Nanomaterials, 2020
In this contribution, we show the suitability of a 3D airway model, when coupled with a nebulizer system, for simulating workplace exposure to nanoparticles. As a proof of concept, workplace exposure to silica nanoparticles was experimentally measured in
Luisana Di Cristo, Fabio Boccuni, Sergio Iavicoli, Stefania Sabella   +3 more
doaj   +1 more source

Comparison of the Potential Ecological and Human Health Risks of Heavy Metals from Sewage Sludge and Livestock Manure for Agricultural Use

Toxics, 2021
Sewage sludge and livestock (chicken, swine and cattle) manure samples were collected from the Yanmenguan Cattle Herbivorous Livestock Area to compare the potential ecological and human health risks caused by heavy metals contained in them. In this study,
Baoling Duan, Qiang Feng
doaj   +1 more source

Occupational exposure limit for silver nanoparticles: Considerations on the derivation of a general health-based value

Nanotoxicology, 2016
With the increased production and widespread commercial use of silver nanoparticles (AgNPs), human and environmental exposures to silver nanoparticles are inevitably increasing.
Brittany A. Weldon, E. Faustman, G. Oberdörster, Tomomi W. Workman, W. Griffith, C. Kneuer, I. Yu   +6 more
semanticscholar   +1 more source

Stochastic evolution as a quasiclassical limit of a boundary value problem for Schrödinger equations [PDF]

, 2002
We develop systematically a new unifying approach to the analysis of linear stochastic, quantum stochastic and even deterministic equations in Banach spaces.
Kolokoltsov, V. N. (Vasiliĭ Nikitich), V. N. KOLOKOL'TSOV, Belavkin, V. P., V. P. BELAVKIN   +3 more
core   +1 more source

Early Liver and Kidney Dysfunction Associated with Occupational Exposure to Sub-Threshold Limit Value Levels of Benzene, Toluene, and Xylenes in Unleaded Petrol

Safety and Health at Work, 2015
Background Unleaded petrol contains significant amounts of monocyclic aromatic hydrocarbons such as benzene, toluene, and xylenes (BTX). Toxic responses following occupational exposure to unleaded petrol have been evaluated only in limited studies.
M. Neghab, K. Hosseinzadeh, J. Hassanzadeh   +2 more
semanticscholar   +1 more source