000			02165nam a22002777a 4500
003			ISI Library, Kolkata
005			20240904112342.0
008			240725b |||||||| |||| 00| 0 eng d
020			_a9241207345
040			_aISI Library _bEnglish
082	0	4	_a100 SD:610.621 _bWHO.Tr.734
110	1		_aWHO Study Group on Recommended Health-Based Limits in Occupational Exposure to Selected Mineral Dusts (‎Silica Coal)‎
245	1	0	_a Recommended health-based limits in occupational exposure to selected mineral dusts (‎silica, coal : report of a WHO study group, meeting held in Geneva from 6 to 12 March 1984‎
260			_aGeneva : _bWorld Health Organization, _c1986
300			_a82 Pages: _bgraphs, tables; _c20 cm.
490	0		_aWorld Health Organization technical report series ; no. 734
505	0		_a1. Introduction -- 2. Causal agents : properties, uses, health hazards 3. retention and elimination of airborne particulate matter -- 5. Health effects of exposure to airborne silica and coal -- 6. Relationship between exposure and relevant health effects -- 7. Recommendations -- Acknowledgements -- References -- Annexes
520			_aEvaluates the effects of inhaled mineral dusts containing relatively high levels of silica and of mixtures of dusts produced during the extraction and processing of coal. Utilizing data on exposure-effects and exposure-response relationships, the report sets forth recommendations based on an evaluation of the incidence of silicosis or coal-workers pneumoconiosis following exposure to silica and coal. Recommendations take account only of health considerations and do not include the problem of implementing operational limits. Annexed to the report are a definition of pneumoconiosis adopted in 1971, a summary of the international classification of radiographs of pneumoconiosis, and a table listing occupational exposure limits in selected countries.
650		0	_aEnvironmental Exposure
650		0	_aOccupational Diseases
650		0	_aSilicon Dioxide
650		0	_aCoal
650		0	_aCommunity Health and Primary Health Care
710	1		_aWorld Health Organization
942			_2ddc _cRP
999			_c435240 _d435240