نتایج جستجو برای: dust protection
تعداد نتایج: 221058 فیلتر نتایج به سال:
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...
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...
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...
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 ...
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 ...
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...
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...
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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