Environmental risk assessment of radon from ceramic tiles

Maged, A. F.; Ismail, L.Z.; Moussa, N.L.

doi:10.1051/radiopro/2012011

Cited by 9 publications

(8 citation statements)

References 8 publications

(9 reference statements)

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“…Table 1 indicates that the concentration of radon gas in the buildings with ceramic flooring had the maximum value compared to other types of flooring. The results of a study by Majed et al ( 43 ) showed that the materials used in the manufacture of ceramic materials are the main sources of radon in closed spaces. The radon emissions of the industrial ceramics manufactured in 13 Egyptian plants were 668 ± 68 Bq/m 3 .…”

Section: Discussionmentioning

confidence: 99%

Estimation of the residential radon levels and the annual effective dose in dwellings of Shiraz, Iran, in 2015

Yarahmadi¹,

Shahsavani²,

Mahmoudian³

et al. 2016

Electron physician

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IntroductionRadon is the second most important cause of lung cancer after smoking. Thus, the determination of indoor radon concentrations in dwellings and workplaces is an important public health concern. The purpose of this research was to measure the concentration of radon gas in residential homes and public places in the city of Shiraz and its relationship with the type and age of the buildings as well as the type of materials used to construct the building (brick, block). We also determined the radon dosages that occupants of the building would receive.MethodsThe present study is a descriptive-analytical and cross-sectional research that was conducted on the building’s indoor air in the city of Shiraz in 2015. Using geographic information system (GIS) software and a spatial sampling cell with an area of 25 square kilometers, 200 points were selected. In this study, we used passive diffusive samplers as Solid State Nuclear Track Detector (SSNTD) CR-39 polycarbonate films for three months in the winter. Sampling was conducted in accordance with the U.S. Environmental Protection Agency’s protocol. We determined the concentrations of radon gas at the time of sampling, and calibration factors were determined. The data were analyzed by IBM-SPSS, version 20, descriptive statistics, Kruskal-Wallis, and Mann–Whitney tests.ResultsThis study showed that the average radon concentration was 57.6 ± 33.06 Bq/m3 in residential dwellings. The average effective dose was 1.45 mSv/y. The concentration of radon in 5.4% of the houses was found to be greater than 100 Bq/m3, which is above the level allowed by the World Health Organization (WHO).ConclusionSince radon is the second leading cause of lung cancer, it seems necessary to increase the public’s awareness of this issue and to take action to reduce radon in homes when the concentrations are above the WHO’s guideline.

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Section: Discussionmentioning

confidence: 99%

Estimation of the residential radon levels and the annual effective dose in dwellings of Shiraz, Iran, in 2015

Yarahmadi¹,

Shahsavani²,

Mahmoudian³

et al. 2016

Electron physician

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“…Mirghafoori et al (2014) evaluated various risks occurring during the manufacturing process in the ceramic industry; the authors only considered manufacturing-related risks instead of overall supply chain risks. Maged et al (2012) discussed the environmental risk associated with the ceramic industry. Masum and Johora (2012) evaluated the performance and financial stability of Bangladeshi ceramic industry, and Jahan (2010) discussed the competitive environment of the ceramic sector of Bangladesh.…”

Section: Literature Reviewmentioning

confidence: 99%

Analysis of supply chain risk in the ceramic industry using the TOPSIS method under a fuzzy environment

Zubayer

Ali

Kabir

2019

JM2

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Purpose Risk management has emerged as a critical issue in operating a supply chain effectively in the presence of uncertainties that result from unexpected variations. Assessing and managing supply chain risks are receiving significant attention from practitioners and academics. At present, the ceramic industry in Bangladesh is growing. Thus, managers in the industry need to properly assess supply chain risks for mitigation purposes. This study aims to identify and analyze various supply chain risks occurring in a ceramic factory in Bangladesh. Design/methodology/approach A model is proposed based on a fuzzy technique for order preference using similarity to an ideal solution (fuzzy-TOPSIS) for evaluating supply chain risks. For this, 20 supply chain risk factors were identified through an extensive literature review and while consulting with experts from the ceramic factories. Fuzzy-TOPSIS contributed to the analysis and assessment of those risks. Findings The results of this research indicate that among the identified 20 supply chain risks, lack of operational quality, lack of material quality and damage to inventory were the major risks for the ceramic sector in Bangladesh. Research limitations/implications The impact of supply chain risks was not shown in this study and the risks were considered independent. Therefore, research can be continued to address these two factors. Practical implications The outcome of this research is expected to assist industrial managers and practitioners in the ceramic sector in taking proactive action to minimize supply chain risks. A sensitivity analysis was performed to determine the relative stability of the risks. Originality/value This study uses survey data to analyze and evaluate the major supply chain risks related to the ceramic sector. An original methodology is provided for identifying and evaluating the major supply chain risks in the ceramic sector of Bangladesh.

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“…Besides, due to the increased percentage of high LET particles, radiobiological characteristics of the beam may also change with the depth [Ghergherehchi, et al, 2008]. Maged et al investigated both of the environmental risk assessment of radon from ceramic tiles in Egypt, estimating the radon concentration in water and indoor air and radon concentration in elementary schools in Kuwait by using CR-39 track detectors [28][29][30] [Maged, et al, 2012;Maged, 2009 andMaged, 2006]. Our studies were extended to include the track density, the track dimension, orientation and roundness response of alpha particles from 241 Am source of energy ~5.5 MeV and from alpha particles emitted from radon exposure since 1997 via sharing in radon Intercomparison [EUR, 1998] as shown in Tables 2-3.…”

Section: (C)mentioning

confidence: 99%

Alpha particles induced modification on SSNTDs stored for long time

Maged

2017

Egypt. J. Rad.Sci.

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E FFECTS of ageing on the optical properties of CR-39 SSNTDs were investigated for two stored types. The optical band gap of the stored pristine was roughly the same as the new pristine samples before chemical etching. Energy gaps were found to decrease with the chemical etching. The onset of the transmittance spectra of the CR-39 SSNTDs were measured at 240 nm and 300 nm for 26 y and 10 y respectively. The etch pit diameters of α−particles were deceased with the storage period while the rate of the decrease depended markedly on the storage conditions. The fading effects of tracks due to radon exposure were a little bit changed. The storage at the temperature of 4 °C for 26 y did not bring any significant changes to the detection efficiency. These characterizations of the response of CR-39 SSNTDs to alpha particle were essential for the storage under certain conditions.

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Environmental risk assessment of radon from ceramic tiles

Cited by 9 publications

References 8 publications

Estimation of the residential radon levels and the annual effective dose in dwellings of Shiraz, Iran, in 2015

Estimation of the residential radon levels and the annual effective dose in dwellings of Shiraz, Iran, in 2015

Analysis of supply chain risk in the ceramic industry using the TOPSIS method under a fuzzy environment

Alpha particles induced modification on SSNTDs stored for long time

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