Document zm2EGRy1RQ6N7wb0wZQYXOqB

FILE NAME State of the Art Literature SAL DATE 1958 DOC SAL067 DOCUMENT DESCRIPTION Journal Abstracts December Spars Diseases ts Diseases Diseasesrae Diseases 4) TROPICAL Diseases nga ae aeoHfo.noru Honoru tober, EMws SNAL Se, 1958 Be. JAe N rge RY he esigs 4 omot we? ae Health melcae assWee, Welfa Desimatio Maternityand Maternity Inf^m BOE Childhood Childhood and Mental Hygiene ese Person Suna Old aed, A = Occupational of Adole aaa the. EG, ort 50 2-y%, derni^derni^ = Desimatio 0's ies aaane TEN eos ae Hygiene | toe. Oe feng te:ne sae - e: ee.ce oa ~ 4 2g g. . ?. es Satay Bureau Bureau Bureau of Hygiene andTropical Diseases Bureau oe:3Bureau ooff of iS 30 ESCRIPTION 70 ta tes baos. . SE oon : 7 HygienHeygiene * vo Street Gower .. Hygiene and Street London London London London vosW.C.J - Street Gower Street LondonW.C.J x . . . . at SHILLINGS Se ee yer , we 7 we ' : yy. g% ale: HE aes PEGE ek ~ . ates see ey & a OS ree & I, eats ; 1168 BULLETIN OF HYGIENE December d . 32 1 exclude a probable improvement in the gaseous exchange in the lungs It is advisable in submitting silicotic patients to sulphur crenotherapy to estimate the vital capacity and if this is markedly reduced to apply th treatment with care in order to prevent undesirable immediate effects The improvement in the general condition of the patients as well as the local effect on the lungs must be attributed to the action of the sulphur E. Middleton HeusER ) & M^llen G. Untersuchungen Mineralogische und physikalisch Untersuchungen an einer Staublunge und an Hautgranulomen Mineralogical and Chemical Investigation of Talc Pneumoconiosis and Talc Skin Granuloma Arch f Gewerbepath Gewerbepath u Giewerbehyg 1957 v 15 No. 5 440 467 figs Tale a hydrated magnesium silicate was formerly regarded as harmless but recently this opinion has been revisei The authors describe i method of separation and examination of mineral residues from 2 sources 1 The lung of a man who had been em- ployed for 20 years in a rubber factory mixing and s'eving tale kaolin and other mineral substances; radiological examination had shown changes suggest- ing silicosis He died at the age of 67 the lungs showed massive diffuse fibrous thickening 2 The scar tissue 4 months after an operation for hydro- cele in a youth of 17 Concentrates of the mineral content of the tissues in each case were prepared by ashing with sulphurie neid washing and centrifuging the white concen- trates consisted almost solely of tale which This was examined by polaroscopic methods which are very fully described the refractive indices were those of tal The solubility of tale in water was investigated by titration with idrenol the disodium salt of ethy tetraacetic acid as described by one of the authors M^...llerG. Neurs Ib Geol 1956 330 ; By this method tale can be dissolved after 270 hours of stirring saturation point is renched giving a value = 0013 gm Mg per 100 cc water that in the Ussues eventually Mg It suggested and Si would separate the silica combining to form organic com- pounds of silicic acist and bringing about the in- jurinus action taleosis this being similar to silicosis in its final action E. Middleton recommended in addition The mean dust couss HE pulmo dry and in moist rock drilling were of the ans 97 and 21 million particles per cubic foot + a Ard m.p.p.c.f. respectively The main Report showed that drillers had an average expvelopm- bestosis nductin 6 by expvelopm- to dust of 45 m.p.p.c.f. ) exam'ned Of the 62 drillers exam'ned 17 27 silicosis 10 in stage 1 5 in stage 2 and 2 uw | AY blokehold blokehold Ratio in mar conglomerate stage There was no correlation being fit age and incidence of silicosis but the incall increased with the number of years of undergr^...ckenit undergr^...ckenit work The 2 patients in the conglomerate starkesa starkesa li worked 15 and 20 years respectively the 15 7 with silicosis had an average exposure of 11 1% su The intensity factor number of years and concentration of dust in i.p.p.e.f. i.p.p.e.f. i.p.p.e.f. shows a gressive increase in frequency rates of silicosia a rate of 41 is reached in the 12 drillers! intensity intensity levels over 800 Active tubercine was found in 4 of the 62 drillers; silicnas iron also present in 2 of these Similar investigations are necessitry in mica 4 R n R n of other States L. Middle Englan Isota GoverNMENT OF Ministry of LaboTI cosis Amongst Supervisory Staff in Mica Misroa in Bihar M. N. GUPTA 6 mimeographed 1955. Report No. 8. New Delhi Officoef Chief Adviser Factories Ministry of Laboar Employment acreas Hastin - After This is a detailed account of the health of 42 m hers of the supervisory staff employed in the mines In their underground work they were exp to dust though to a somewhat less extent that of miners The ages of the group ranged from 20 and the periods of employment from 1 to 30 year The incidence of silicosis increased with age and ployment the earliest evidence of silicosis was foo at the age of 27. and employment of 7 years a ground After 15 years work underground > showed radiographic evidence of silicosis of 42 the group 19 45 showed silicosis 12 in stag 3 in stage 2. and 4 in the conglomerate stage were 8 cases of tuberculosis and in all of these Bater alailittyy Mortal MortalTabere Leath Leaatlhl Matist Matisht alect alect 2.1 rosis was also present 4 in stage 1 2 in stage 2 in the conglomerate stage Cardiac involvemes was diagnosed in 3 cases 1 each of enlarged hear enlarged aorta and hypertension INDIA GOVERNMENT OF Ministry of Labour Sili cosis Amongst Hand Drillers in Mica Mining in Bihar 2 figs Delhi M. N. Gupta 12 mimeographed pp on 2 pls 1956. Report No. 12 New Office of the Chief Adviser Factories Ministry of Labour & Employment This report gives deta information on 62 hand- drillers drawn from 3 mica mines in Bihar Of 1.010 mica mines in Tulia in 1952 drilling was done by drills in 181 hand in 829 and with compressed munes In 1956 drilling was done without dust- in 74 of mica mines Dust control was not trreaqpusired by law up to the end of 1952 but wet drilling is now being enforced and mechanical ventilation is [Sra Molfixo F. & ZANNINI D. | Malattie polmer Furt da polveri nei lavoratori dei porti LIN Diseases due to Dust in Dock Workers Furt Meit 1956 June v 39. No. 6 525 304 19 ) ref but wer had the ialnialn This is a study of lung disensen due to dust arvi dock workers in Genoa Of 341 bearen examined 8 all with more than 20 years experieso of the work were found to have a varyingly didar dissemination of nodules particularliyn the lowe and mid areas Incidence of suspected su tuberculosis among these workers was 3-65 and the ff tive 4 fl dust T , foe vs mx ry eL : 9 > = \ . 4 : : a ye 32 No. 12 OCCUPATIONAL HYGIENE AND TOXICOLOGY 1169 in of pulmonitis was also above average 11 cases of irundctg been described irundcting of asbestosis were found among workeru handling non- irunducting irunducting material 5 have by Canepa 33 an6 d by the authors during the period 1940 56The cep relopment of asbestosis in these cases was extremely dow A fairly high proportion of workers in shipa Asokeholds showed diffuse dry bronchitis often asth- ematic in type Of 32 electrical welders on bourd ships sing fitted out or undergoing repairs 2 had a very marked pulmonary micronodulation and 2 a thickening of the root shadows with little nodulation |4 These lesions were probably caused by siderosis * E. Vigliani rs Up fiulda J. Hasmatite Pneumoconiosis in Cum | berland Miners J. Clin Path 1957 Aug. ij v 10 No. 3 187-99 17 figs 40 refs the damaged epithelial cells at the edge of the fibrous mass and they spread from there to the hilum and not in the reverse direction Illustrations show the sites of tumours and the pathogenesis is discussed In 238 necropsies on iron miners of average uge 61 years there were 24 cases of carcinoma compared with % in males over 30 who were not haematite miners Lymphadenitis of hilar glands with ulceration into a bronekus is occasionally seen in iron miners 2 such cases are described Mensures taken for dust suppression 20 years ago and carried out with the active cooperation of both #niployers and workers have brought about a redue- tion in the abnormal chest radiographs of miners with 10-20 years work underground from 30 tu % E. Middleton h sf After reviewing briefly the literature on the effects the MINISTRY NATIONAL MINISTRY Labour anD Of anD SERVICE SERVICE Dust . Rooms adg iron oxide on the lungs the author traces the time in Card Third Report of the Interim istory of Cumberland iron mining from Joint of the Cotton Industry Advisory Committee Committee slg Roman workings { almost The iron of north in the form of ferric oxide A. S. pp 15 pls BETTENSON Chairman H.M. England is entirely in the & 1 graph 1957. London H.M. Stationery or haematite and exists in large masses deep Office 26. 6 ayers of the carboniferous limestone at depths fT pproaching 1.500 feet Until the introduction of 84 neumatic drilling in 1913 the ore was mined by chisel and blasting the use of pneumatic drills This report describes an exhaust system for carding engines devised by the British Cotton Industry Research Association at the Shirley Institute increased the rate of working and the amount of The Shirley Institute studied the points on the ) Sasting so that dense dust clouds were produced After 1925 wet drilling was introduced but the use of cater was often evaded Investigations between 1912 and 1923 into the mor- carding engine from which dust is liberated and applied a system of exhaust ventilation to the most important sources of the dust The effects of the deview on dust concentrations in ality rates for pulmonary diseases among the miners Jowed evidence of bronchitis and emphysema but sortality from bronchitis pneumonia and pulmonary the atmosphere of cardrooms have been tested under both " laboratorymeasuremnts and mill conditions Most of the dust measurements were of the smaller particles aberculosis was not outstanding In 1931-33 the kath rate for tuberculosis was 70 higher than that of 5 and less and indicated that the efficiency of the dust extraction was greater for the larger par all males of comparable age and 3 times that of ticles than for the smaller ones Its overall efficiency tal miners in Staffordshire and Yorkshire Local atistics also showed a high rate for tuberculosis in in the particles of up to 4 in size was about 60 The few gravimetric ^fimeasuremmeandtesof dust coll- efficiency about 75 haematite he fection in mining ventilated area This was attributed to mines high sisting of particles greater than 0-2, indicated an fection in ventilated and dusty mines a high of proportion of Irish workers and mechanization in The Chief Inspector of Factories recommends that : uning methods From 1930 onwards cases of silico- the cotton spinning industry should use this new berculosis began to be recognized clinically and at device It seems to be easily the best available for . ...> Progressive massive fibrosis of haematite miners is modified form of infective pneumoconiosis which reducing dust in curdrooms and thus preventing byssinosis R. F. Schilling us considered to be tuberculous when first described siewart and Faulds this Bulletin 1934 v 9 659 Wass A. A. et al Some Instruments and Instru- may not be invariably so In the last 2 years ment Techniques in use at the Safety in Mines xcropsies on 58 iron miners showed that 30 Research Establishment Reprinted from Instrus ^ addied of pulmonary tuberculosis the author takes ie view that the tuberculosis is a terminal event ment Practice 54 ref 1957 June 3.16 32 lies most cases the dust in the lungs predisposing to sfection and to development of the disease A relaincrease in the amount of silica in the lungs contributory factor and the action of iron inst must also be considered There is an increased incidence of lung tumours in aure miners The striking feature is the location This paper was given at a conference of the British Occupational Hygiene Society which was devoted to the consideration of instruments for use in occupa- tional hygiene It describes instruments used in the study of underground explosions plettinoconiosis and mining accidents on the primary tumour at the sites where fibrosis is Continued propagation of a dust explosion depends ant commonly found They appear to arise from on the ability of the blast ahead of the flame to raise 2503 4 cepperere - t.4 a5 on ite SEP etree a ae Areas Reco ca Erey Ay ones CN SORTEAM MS wet Mes or detaShe Lo Rey Beg Tap! Seek FY Ae G knn & A EEO eo hate a NS 7 EFL ABS FOQi+ a a oe 5 rh t ORAS . "eyitcetei WRGER fee, 1STe ree pe a tat yiahee LaNEhLatee sek 5 << sh ae oh om areas ay s. 4%