نتایج جستجو برای: cement dust

تعداد نتایج: 68914  

Journal: :British journal of industrial medicine 1991
J Vestbo K M Knudsen E Raffn B Korsgaard F V Rasmussen

The relation between exposure to cement dust and cancer was examined in a population of 546 cement workers and a reference population of 858 randomly sampled men of similar age and area of residence. In 1974 all men gave lifelong occupational and smoking histories; information on incidence of cancer in the period 1974-85 was obtained from the Danish Cancer Registry. No increased risk of overall...

2013
Raja Peary Mohan

___________________________________________________________________________________________ Purpose: To evaluate the basic pulmonary function parameters of cement industry workers from West Bengal. This cross-sectional study was carried out in a cement factory at Durgapur, district Burdwan on male cement industry workers and a control group of office workers. Materials and methods: Ninety worke...

2011
M. K. Rahman

The globally growing demand of cement results in towering collection of kiln dust from cement plants. The disposal of this fine dust is very difficult and poses an environmental threat. To overcome this problem, research is being carried out in different parts of the world to find out economical and efficient ways and means of using cement kiln dust (CKD) in various applications like soil stabi...

Augusta Chinyere Nsonwu-Anyanwu, Chinyere Adanna Opara Usoro, Deborah Ifunanya Egbe, Edmund Richard Egbe, Maise Henrieta Etukudo, Sunday Jeremaiah Offor,

Background: Cement production is associated with heavy metal emissions and environmental pollution by cement dust. The degree of contamination of drinking water sources by major and trace elements present in cement dust generated by united cement factory (UNICEM) is still uncertain. This study estimated the element content of ground and surface water samples (hand-dug wells, boreholes and strea...

Journal: :Bioresource technology 2013
Amélie Talec Myrvline Philistin Frédérique Ferey Günther Walenta Jean-Olivier Irisson Olivier Bernard Antoine Sciandra

Experiments were performed at lab scale in order to test the possibility to grow microalgae with CO2 from gaseous effluent of cement industry. Four microalgal species (Dunaliella tertiolecta, Chlorella vulgaris, Thalassiosira weissflogii, and Isochrysis galbana), representing four different phyla were grown with CO2 enriched air or with a mixture of gasses mimicking the composition of a typical...

2012
Phayong Thepaksorn Sathirakorn Pongpanich Wattasit Siriwong Robert S. Chapman Surasak Taneepanichskul

impairments and respiratory symptoms have been mostly reported in epidemiological studies. The causal associations between cement dust exposure and pulmonary diseases have been studied by epidemiologic and animal studies. The influenced mechanisms of dust deposition are impaction, sedimentation, and diffusion through the respiratory system. Dust greater than 10 μm in aerodynamic diameter are ge...

Journal: :International journal of occupational medicine and environmental health 2008
Sultan Ayoub Meo Shahzad Rasheed Muhammad Mujahid Khan Syed Shujauddin Ali S Al-Tuwaijri

OBJECTIVES Exposure to cement dust can cause various occupational health problems due to its increasing incidence and long-term complications. However, the influence of cement dust on phagocytic function of polymorphonuclear neutrophils (PMNs), has not as yet been investigated. Therefore, the aim of the study was to measure the phagocytic activity of PMNs by assessing chemilumiscence (CL) respo...

2016
Egbe Edmund Richard Nsonwu-Anyanwu Augusta Chinyere Offor Sunday Jeremaiah Usoro Chinyere Adanna Opara Etukudo Maise Henrieta Egbe Deborah Ifunanya

Background. Cement dust inhalation is associated with deleterious health effects. The impact of cement dust exposure on the peak expiratory flow rate (PEFR), liver function, and some serum elements in workers and residents near cement factory were assessed. Methods. Two hundred and ten subjects (50 workers, 60 residents, and 100 controls) aged 18-60 years were studied. PEFR, liver function {asp...

2016
Vera Cesar Hrvoje Lepedus

The correlation between the peroxidase activity, chlorophyll and soluble protein content as well as the changes in vascular bundle structure in Norway spruce (Picea abies L. Karst.) needles affected by cement dust were studied. In spite of the absence of any yellowing symptoms, a significantly lower chlorophyll con­ tent was measured in spruce needles affected by cement dust. Observed sieve cel...

2012
S. K. DWIVEDI

The effect of cement dust on the growth parameters of brinjal (Solanum melongena) was studied. The cement dust (2 g/plant) exhibited both inhibitory and promotory effects on different growth parameters of the S. melongena. The decrease in the number of leaves (37.19 and 62.28%), leaf area (57.93 and 57.26%), root length (48.21 and 56.75%), shoot length (27.27 and 38.98%), plant circumference (3...

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