نتایج جستجو برای: total dust

تعداد نتایج: 837710  

Journal: :international journal of occupational hygiene 0
abdolhossein poornajaf department of occupational health, school of public health, ilam university of medical sciences, ilam, iran hossein kakooei 2department of occupational health, school of public health, tehran university of medical sciences, tehran, iran mostafa hosseini department of biostatistics, school of public health, tehran university of medical sciences, tehran, iran farhad ferasati department of occupational health, school of public health, ilam university of medical sciences, ilam, iran hojattollah kakaei department of occupational health, school of public health, ilam university of medical sciences, ilam, iran

the present study aimed at assessing cement dust exposure and its relationship to lung function at a portland cement factory in ilam, iran. lung function tests were carried out on 112 workers at the cement factory in 2008-09. simultaneously 85 non exposed workers were used as control. lung function tests were performed for all subjects. additionally, total dust level was determined by the gravi...

Journal: :iranian journal of public health 0
f. golbabai ; a. tirgari ;m. mahmoudi

in order to compare sampling efficiencies of total and inhalable dust methods, three airborne dust sampling systems , 7-hole sampler , close and open face filter cassette were compared side-by-side , as stationary and for the personal samplers , in a wood working industry to evaluate their relative efficiency. a total of 162 samples were collected. the study of particle size distribution by cas...

Journal: :iranian journal of public health 0
h.dehghan shahreza n. razavizadeh

this research was conducted from july 1993 to june 1994 on the total population (711 workers) of a glass factory. the purpose of this study was to determine the quantitative free silica (quartz) in respiratory zone of workers in glass industry. field samples including 50 samples total dust and 37 samples respirable dust and standard simplex were collected on membrane filters using skc dust samp...

ژورنال: طلوع بهداشت یزد 2013
امینی گندمانی, روح الله, برخورداری, ابوالفضل, زارع, محمدجواد, زواررضا, جواد, میرزایی, مسعود,

  Background : Occupational exposure to dust generated in the process of carpet weaving which can lead to pulmonary complications. The aim of this study was to investigate the association between exposure to carpet dust size and parameters of lung function.   Method : This retrospective case-control study was performed on 95 carpet weaver City Khomein. The total exposure inhaled ca...

ژورنال: طب کار 2012
اصلانی, مریم, امینیان, امید, صادق‌نیت‌حقیقی, خسرو,

Background: Although one of the most important occupational hazards in cement industry is the effect of cement dust exposure on respiratory system, there is controversy about the relationship between exposure to cement dust and respiratory symptoms and pulmonary function impairment. Our aim was to assess the effects of cement dust exposure on respiratory symptoms and lung capacities of cement w...

Journal: :acta medica iranica 0
omid aminian department of occupational medicine, occupational medicine research center, tehran university of medical sciences, tehran, iran. maryam aslani department of occupational medicine, occupational medicine research center, tehran university of medical sciences, tehran, iran. khosro sadeghniiat haghighi department of occupational medicine, occupational medicine research center, tehran university of medical sciences, tehran, iran.

cement dust exposure is associated with increased respiratory impairment. as the major occupational hazard in the cement production industry is cement particles, our aim was to more thoroughly examine the acute effects of occupational exposure to cement dust on the respiratory system. a cross-shift study was conducted in a cement factory in iran. 100 high exposed workers from production and pac...

Dust is considered as one of the most widespread air pollutants. The objective of the study was to analyze the effect of dust load on the leaf attributes of the nut pistachio tree (Pistacia vera L.) planted in Badrood region (Kashan, central Iran) with a relatively high aeolian dust pollution. Some leaf characteristics including specific leaf area (SLA), relative water content (RWC), leaf nitro...

Ali Naghizadeh, Elham Derakhshani, Habibeh Shahabi, Motahareh Nazinejad,

  Background & Aims of the Study: Dust is one of the detrimental factors in workplace of tile industry. Exposure to excessive amount of dust can create various hazards to the workers. Therefore, the present study aimed to measure the concentration of environmental and respirable dust in air of Birjand Niloofar tile Industry. Materials & Methods: In the present study, using personal...

حسینی, مصطفی, رضا زاده آذری, منصو, موسوی, سجاد, پناهی, داود, کاکویی, حسین,

Introduction: Exposure to crystalline silica in the construction workers such as miners and diggers are widespread. Exposure to respirable silica (quartz) can results in silicosis. The goal of this study was to determine the contribution of each workers and component task to total dust and respirable quartz exposure in the tunnel of metro. .Method and Materials: The assessment of crystallin...

محمدیان, محمود ,

ABSTRACT Cotton dust is one of the chemical agents that cause air pollution in textile workshops. An investigation was done to measure cotton dust concentration in Mazandaran Province. 37 samples were collected by personal samplers devices and whatman filter papers of worker's inhalation zone of ambient air that contained total dust. 40 samples were collected by whatman filter papers and ho...

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