000			02218cam a2200337 a 4500
003			EG-GiCUC
005			20250223032347.0
008			190826s2018 ua f m 000 0 eng d
040			_aEG-GiCUC _beng _cEG-GiCUC
041	0		_aeng
049			_aDeposite
097			_aM.Sc
099			_aCai01.12.08.M.Sc.2018.Em.I
100	0		_aEman Mohammed Abdelaziz Mohammed
245	1	0	_aInfrared determination of crystalline silica in respirable dust / _cEman Mohammed Abdelaziz Mohammed ; Supervised Aida L. Alansary , Sabrein H. Mohamed
246	1	5	_aتقدير نسبة السليكا المتبلورة فى الغبار المستنشق بإستخدام الأشعة تحت الحمراء
260			_aCairo : _bEman Mohammed Abdelaziz Mohammed , _c2018
300			_a86 P. ; _c25cm
502			_aThesis (M.Sc.) - Cairo University - Faculty of Science - Department of Analytical Chemistry
520			_aCrystalline free silica is condidered as a lung carcinogen and the occupational exposure to its dust is a health hazand to workers employed in industries that involve ores of mineral dust in Egypt, thousands of people work under conditions of silica dust exposure exceeding the occuoational exposure limit, as a result the monitoring of the occuoational exposure to crystailine silica dust is required by government legistation. The assessment of the later is a multi-phase process, depend on workplace measurements, quantitative analyses of samples, and companson of results with the permissible limits. This study aims to investigate occuoational exposure to crystailine silica dust at 22 factones in Egypt with different industrial activites like stone cutting glass making ceramic, and sand blasting. Dust samples were collrcted from work sites at the breathing zone using a personal sampling pump and a size-selective cyclone and analyzed using FTIR
530			_aIssued also as CD
653		4	_aCrystalline silica
653		4	_aEgyptian wokers
653		4	_aFTIR
700	0		_aAida Lotfy Alansary , _eSupervisor
700	0		_aSabrein Harby Mohamed , _eSupervisor
856			_uhttp://172.23.153.220/th.pdf
905			_aNazla _eRevisor
905			_aSamia _eCataloger
942			_2ddc _cTH
999			_c73512 _d73512