Results 131 to 140 of about 7,704 (296)

The evaluation and quantification of respirable coal and silica dust concentrations : a task–based approach

, 2009
Thesis (M.Sc. (Occupational Hygiene))--North-West University, Potchefstroom Campus, 2010.Silicosis and coal worker's pneumoconiosis are serious occupational respiratory diseases associated with the coal mining industry and the inhalation of respirable ...
Grové, Tanya
core  

Evaluation of Respirable Dust and Respirable Crystalline Silica Exposures During Asphalt Mix Production and Road Paving Operations [PDF]

Management from an asphalt mix production and paving company requested a health hazard evaluation concerning employee exposure to respirable dust and respirable crystalline silica during asphalt mix production and road paving activities.

core   +1 more source

Lung maneuvers of large amplitudes for probing physiological alterations in mouse models of asthma

Animal Models and Experimental Medicine, EarlyView.
Lung maneuvers of small amplitudes, such as the ones performed in oscillometry, are the current gold standard to probe lung mechanics in animals, but they are insensitive to detect baseline physiological alterations in mouse models of asthma. Herein, lung maneuvers of different amplitudes were compared in two mouse models of asthma.
Magali Boucher, Cyndi Henry, Marie‐Josée Beaulieu, Andrés Rojas‐Ruiz, Ynuk Bossé   +4 more
wiley   +1 more source

Respirable dust exposure in underground gold miners at Obuasi in Ghana

, 2006
Mechanised large-scale mining by European companies which began in the Gold Coast (now Ghana) as early as 1877 presently employs approximately 20,000 people.
Sadhra, S, Bio, FY, Jackson, C, Burge, PS   +3 more
core   +1 more source

Evaluation and Comparison of Airborne Concentrations of Crystalline Silica and Total Respirable Dust in Refractory Brick Industries in Isfahan [PDF]

Muhandisī-i bihdāsht-i ḥirfah/ī
Background and Objective: Inhalation of crystalline silica particles in the workplace can lead to occupational diseases, such as silicosis. This study aims to evaluate and compare airborne concentrations of crystalline silica and respirable dust in the ...
Atefeh Sodaei, Parisa Adibi, Hamidreza Pouragha   +2 more
doaj  

Exposure assessment of core making workers to respirable crystalline silica dust

بهداشت و ایمنی کار, 2017
Introduction: Occupational exposure to crystalline silica increases the risk of lung cancer and restrictive lung disease with extensive fibrosis. Silica dust is a major health hazard in foundry factories.
Fatemeh Zarei, Mansour R. Azari, Sousan Salehpour, Soheila Khodakarim, Saba Kalantary, Elahe Tavakol   +5 more
doaj  

Permissible but not protective: 11-year cohort evidence linking respirable rubberwood dust exposure to lung function decline in Thai workers

Environmental Challenges
Background: Respirable wood dust is a known occupational hazard, yet longitudinal evidence from tropical hardwoods, particularly rubberwood, a major Southeast Asian export, remains scarce. Most existing data are cross-sectional or based on temperate wood
Kodchapan Noochana, Sitthichok Puangthongthub   +1 more
doaj   +1 more source

Multivariate Analysis of Hematological Stress Biomarkers and Welfare Domains in Organic and Intensive Pig Farming in Italy: A Pilot Study

Animal Research and One Health, EarlyView.
Intensive or organic farming systems may expose pigs to management or environmental challenges. Our preliminary results concluded that organic farming might enhance adaptive immune function, showing that improvements in welfare can translate into measurable immunological benefits, based on the correlation between welfare assessment and physiological ...
Dorotea Ippolito, Talal Hassan, Antonio Marco Maisano, Stefania Bergagna, Cecilia Guasco, Barbara Miniscalco, Martina Tarantola, Elena Colombino, Claudio Caruso, Ahsan Muhammad, Silvia Mioletti, Laura Tomassone, Massimiliano Tursi, Cristina Vercelli, Giovanni Loris Alborali, Maria Teresa Capucchio   +15 more
wiley   +1 more source

Evaluation of Free Silica Emission in Ambient Air of Stone Crushing in Azandarian Area of Hamadan State by Using of X-Ray Diffraction Method

پزشکی بالینی ابن سینا, 2007
Introduction & Objective: Determination of free silica to calculate threshold limit value is necessary. The purpose of this research was study of free silica in particulate emission in ambient air of stone crushing workshops in Azandarian area ...
Mohsen Aliabadi, bdorrahman Bahrami, Hosein Mahjub, Farshid Ghorbani, Mohammad Ali Barghi, Farideh Golbabaie   +5 more
doaj  

Particle-Level Changes in Respirable Coal Mine Dust Characteristics, 2003–2020

Mining
Mining practices and operating conditions are continually evolving, and the respirable fraction of coal mine dust is accordingly expected to change in composition and particle characteristics over time.
Emily Sarver, Çigdem Keleş, Setareh Ghaychi Afrouz, Eleftheria Agioutanti   +3 more
doaj   +1 more source