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Öğe An epidemic of silicosis among former denim sandblasters(European Respiratory Soc Journals Ltd, 2008) Akgun, M.; Araz, O.; Akkurt, I.; Eroglu, A.; Alper, F.; Saglam, L.; Mirici, A.Sandblasting denim using silica has emerged as a new cause of silicosis in Turkey. Following the discovery of several cases of silicosis in (young) workers who used this process, the frequency and main occupational risk factors of silicosis among former denim sandblasters in the region of Erzurum (Turkey) were evaluated. Demographic characteristics and information on working conditions were obtained by questionnaire and interview. In addition, spirometry testing was performed and chest radiographs were evaluated according to International Labour Office (ILO) classification of pneumoconioses in 157 former denim sandblasters. All subjects were male, with a mean (range) age of 23 (15-44) yrs. They had worked for a mean (range) of 36 (1-120) months, starting employment at a 17 (10-38) yrs of age. Most subjects (83%) had respiratory symptoms, especially dyspnoea (52%) but also chest pain (46%). Radiological evidence of silicosis (ILO score 1/0 or higher) was present in 77 (53%) out of 145 subjects with interpretable chest radiographs. These subjects had lower forced expiratory volume in one second and forced vital capacity. The risk of silicosis correlated with seniority (i.e. working as a foreman), exposure duration and number of places of work. Considering the high prevalence rate of silicosis in such workplaces, further problems are inevitable in the future unless effective measures are taken.Öğe Distribution of Natural Radioactivity from 40K Radioelement in Volcanics of Sandikh-Suhut (Afyon) Area(Polish Acad Sciences Inst Physics, 2015) Uyanik, N. A.; Oncu, Z.; Uyanik, O.; Bozcu, M.; Akkurt, I.; Gunoglu, K.; Yagmurlu, F.Many radioactive elements have existed when the Earth had appeared and the long living of them are still present. One of the most important of these radioactive elements is K-40. It makes about 0.012% of total content of K, widely represented in many different rocks. In this study the distribution of the natural K-40 radioelement in the volcanics of the south part of Afyon was investigated. Gamma-ray spectrometer was used for in-situ measurements of this radioelement concentration. Studied area has covered approximately 1800 km(2). In-situ measurements were performed at 1390 different locations in this field. Data for each measurement was gathered during 3 min. The map of the K-40 element distribution in the studied area was produced. The high values of K-40, according to this map, were obtained in the areas of the alteration zones, between Sandikh and Suhut in the studied area.Öğe Distribution of natural radioactivity from 40K radioelement in volcanics of Sandikli-Şuhut (Afyon) Area(Polska Akademia Nauk, 2015) Uyanik, N.A.; Öncü, Z.; Uyanik, O.; Bozcu, M.; Akkurt, I.; Güno?lu, K.; Ya?murlue, F.Many radioactive elements have existed when the Earth had appeared and the long living of them are still present. One of the most important of these radioactive elements is 40K. It makes about 0.012% of total content of K, widely represented in many different rocks. In this study the distribution of the natural 40K radioelement in the volcanics of the south part of Afyon was investigated. Gamma-ray spectrometer was used for in-situ measurements of this radioelement concentration. Studied area has covered approximately 1800 km2. In-situ measurements were performed at 1390 different locations in this field. Data for each measurement was gathered during 3 min. The map of the 40K element distribution in the studied area was produced. The high values of 40K, according to this map, were obtained in the areas of the alteration zones, between Sand?kl? and Suhut in the studied area.
