نتایج جستجو برای: dust protection

تعداد نتایج: 221058  

Journal: :Journal of occupational and environmental hygiene 2005
Shu-An Lee Atin Adhikari Sergey A Grinshpun Roy McKay Rakesh Shukla Haoyue Li Zeigler Tiina Reponen

A new system was used to determine the workplace protection factors (WPF) for dust and bioaerosols in agricultural environments. The field study was performed with a subject wearing an N95 filtering facepiece respirator while performing animal feeding, grain harvesting and unloading, and routine investigation of facilities. As expected, the geometric means (GM) of the WPFs increased with increa...

2013
Lynn R. Goldman Ellen Silbergeld

Allen JG, McClean MD, Stapleton HM, Webster TF. 2008a. Critical factors in assessing exposure to PBDEs via house dust. Environ Int 34:1085–1091. Allen JG, McClean MD, Stapleton HM, Webster TF. 2008b. Linking PBDEs in house dust to consumer products using X-ray fluorescence (XRF). Environ Sci Technol 42(11):4222–4228. Harrad S, Abdallah M, de Wit C, Östman C, Bergh C, Covaci A, et al. 2010. Indo...

2013
Randall Lutter Craig Barrow Christopher J. Borgert James W. Conrad Debra Edwards Allan Felsot

Allen JG, McClean MD, Stapleton HM, Webster TF. 2008a. Critical factors in assessing exposure to PBDEs via house dust. Environ Int 34:1085–1091. Allen JG, McClean MD, Stapleton HM, Webster TF. 2008b. Linking PBDEs in house dust to consumer products using X-ray fluorescence (XRF). Environ Sci Technol 42(11):4222–4228. Harrad S, Abdallah M, de Wit C, Östman C, Bergh C, Covaci A, et al. 2010. Indo...

ژورنال: سلامت و محیط زیست 2013
جعفری مطلق, زینب, دل انگیزان, سهراب ,

Background and Objectives: Dust phenomenon has adverse effects on the health of the population.Due to the increasing concentration of Kermanshah dust phenomenon in recent years, The aim of this study was to measure the concentration of the sensitivity coefficients between dust phenomenon hospitalization and mortality rates for heart and respiratory. Materials and Methods: This was a ...

2015

IJMDS ● www.ijmds.org ● January 2016; 5(1) 1038 Original Article Lung function response to dust in Safai workers Arora R, Kaur H ABSTRACT Introduction: Sweepers often work without proper protection and are thus exposed to harmful effects of inhaled dust. Objectives: This study was undertaken to study the effect of dust on the pulmonary functions in sweepers working in PIMS, Jalandhar Materials ...

Journal: :International journal of biometeorology 2008
Joseph M Prospero Edmund Blades Raana Naidu George Mathison Haresh Thani Marc C Lavoie

Asthma is epidemic in developed and developing countries including those in the Caribbean where it is widely believed that African dust, transported in high concentrations in the Trade Winds every year, is a major causative factor. The link between asthma and dust in the Caribbean is based largely on anecdotal evidence that associates sharp increases in the occurrence of asthma symptoms with ha...

2011
Shichao Fan Danlu Wang Bryan Hubbard Qiping Shen

Construction dust is one of the most concerned pollutants presenting risks to human health. Dust from construction activities, particularly true for silica dust, have an adverse effect on the local environment and on the health of local residents, as well as on those working on the site. There is a long-term concern about the over exposure of construction workers to respirable crystalline silic...

2004
Rauno Holopainen Olli Seppänen Pertti Pasanen Matti Jantunen

This thesis focuses on dust accumulation in, and removal from, recently installed supply air ducts and on the bristle behaviour of rotating duct cleaning brushes. The results of dust accumulation, measured using three different methods, were compared and the amount of dust in newly installed air ducts was evaluated. The vacuum test was found to be an efficient method of collecting dust samples ...

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