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Occupational Health and Safety Regulations [Canada - Yukon Territory]
Regulations issued under the 1984 Act (see CIS 89-1054). Seven volumes: general safety regulations (109p); occupational health regulations (45p.; includes, among others, noise exposure and permissible concentration lists); blasting regulations (23p.); radiation protection regulations (14p.); commercial diving regulations (19p.); mine safety regulations (91p.); minimum first-aid regulations (35p.).
Government of the Yukon Territory, Whitehorse, Y.T., Canada, no date. 7 vols. Illus.
McDonald J.C., McDonald A.D., Sébastien P., Moy K.
Health of vermiculite miners exposed to trace amounts of fibrous tremolite
A cohort of 194 men with low exposure to fibrous tremolite (mean 0.75f/mL y) in the mining and milling of vermiculite in South Carolina (USA) experienced 51 deaths 15yrs or more from first employment. The SMR (all causes) was 1.17 reflecting excess deaths from circulatory disease. There were 4 deaths from lung cancer and 3.31 expected. Three of the 4 deaths were in the lowest exposure category (<1f/mL y); no death was attributed to mesothelioma or pneumoconiosis. These findings contrast with those in Montana where the vermiculite ore was heavily contaminated with fibrous tremolite. A radiographic survey of 86 current and recent South Carolina employees found 4 with small parenchymal opacities (≥1/0) and 7 with pleural thickening. These proportions were not higher than in a non-exposed group and much lower than had been observed in Montana.
British Journal of Industrial Medicine, Sep. 1988, Vol.45, No.9, p.630-634. 8 ref.
Pneumoconiosis in Indian mines
This book devoted almost entirely to the radiological aspects of pneumoconiosis is supplemented by case studies, direct findings and the great experience of the author. Contents: radiological aspects of pneumoconiosis; differential diagnosis; the ILO classifications; epidemiology of pneumoconiosis in Indian mines; compensation; rehabilitation and job placement of pneumoconiosis victims; complications.
East End Medical Publishers, c/o Dr. M.K. Saha, P.O. Gobindpur, Dt. Dhanbad (Bihar), Pin: 828109, India, 1988. 104p. Illus. Prices: INR 200.00; GBP 13.50; USD 25.00.
Activities of the Mines Administration in 1987
L'activité des services de l'Administration des Mines en 1987 [en francés]
Bedrijvigheid van de diensten van het Mijnwezen in 1987 [en holandés]
Part I deals with the mine labour inspection activities of the Belgian Mine Administration, while Part II deals with underground works supervised by the Administration. There is also a section devoted to accident statistics in this industrial sector.
Annales des mines de Belgique - Annalen der Mijnen van België, 1988, No.2, p.99-118.
Jayaraman N.I., Jankowski R.A.
Atomization of water sprays for quartz dust control
The use of water spray systems for respirable dust control on continuous mining machines has been a traditional and relatively effective approach. However, with the implementation of more stringent dust standards due to quartz, the efficacy of these systems has been questioned. In response, the Bureau of Mines, U.S. Department of Interior, has undertaken a study to determine the relationship between spray pressure, total respirable dust control, and specific quartz dust control. Laboratory and full-scale model studies have been completed in an effort to evaluate the effectiveness of low-pressure, high-pressure, and combination water spray systems. Results of these tests indicate that high-pressure atomised sprays will improve reduction of all respirable dusts, especially dust in the 3.0µm size range and below. These are also the size ranges that have been shown to contain the most significant amounts of airborne respirable quartz dust. Improved control techniques, such as those presented in this article, may be required in mine sections where more stringent dust standards are in effect.
Applied Industrial Hygiene, Dec. 1988, Vol.3, No.12, p.327-331. Illus. 8 ref.
Bigu J., Grenier M., Hardcastle S.
Effectiveness of a wet scrubber in reducing radioactive aerosol and dust concentrations in underground uranium mines
The effect of a wet scrubber in controlling long-lived and short-lived radionuclides associated with airborne particulate matter in the submicron and respirable ranges was investigated during hard-rock crushing operations at a crusher plant located in an underground uranium mine. Measurements were made of long-lived radioactive dust concentration and radon progeny and thoron progeny concentrations at the crusher platform, the scrubber, and in an area adjacent to the crusher. The data show the wet scrubber was very efficient in reducing the concentration of long-lived radioactive dust and in removing radioactive particulate matter of size greater than about 2µm. A modest reduction in radon progeny and thoron progeny concentration also was noticed during the operation of the wet scrubber.
American Industrial Hygiene Association Journal, Nov. 1988, Vol.49, No.11, p.572-578. Illus. 14 ref.
Health and Safety Commission
Explosives at quarries - Approved Code of Practice; Quarries (Explosives) Regulations 1988 [United Kingdom]
This booklet contains the Approved Code of Practice and 16 Regulations, which come into effect 1 January 1990. The Regulations set out standards to be achieved in order to prevent danger from the presence and use of explosives at quarries. Methods of meeting these requirements are given in the Code. Content: interpretation; application; owner's duties; manager's duties; security of explosives and detonators; appointment of shotfirers and trainee shotfirers; shotfirer's duties; exploders; misfires; prohibited shots; prohibited activities near explosives; exemption certificates; modification of the Mines and Quarries Act 1954; disapplication of Section 157 of the Act 1954; revocations and modifications. In the appendices: (1) training course for shotfirers; (2) blasting specifications.
HMSO Books, P.O. Box 276, London SW8 5DT, United Kingdom, 1988. 17p. Price: GBP 3.00.
Altmeyer H., Laturell M.
The importance of safety programmes for improving occupational safety
Die Bedeutung von Sicherheitsprogrammen für die Verbesserung der Arbeitssicherheit [en alemán]
Safety improvement efforts by the central maintenance division of the Saarbergwerke AG (Federal Republic of Germany) included: (1) determination of the causes and the location of past accidents in the company; (2) evaluation of employee recommendations for improving safety; (3) identifying necessary safety measures; (4) informing employees of new safety measures; (5) checking the effect of safety programmes. The importance of actively involving shop stewards and employees at all stages is stressed.
Sicherheitsingenieur, Jan. 1988, Vol.19, No.1, p.28-33. Illus.
Martin J.R., Muir D.C.F., Moore E., Edwards A.C., Becklake M., Morgan K.W., Anderson H., Edstrom H., Rusted I.E., Segovia J.
Pneumoconiosis in iron ore surface mining in Labrador
A cross-sectional survey of the work force at an iron ore surface mine and benefication plant identified cases with a radiologic diagnosis compatible with simple pneumoconiosis by the International Labour Organization (ILO) classification (1980). Their distribution by ILO categories 1, 2, and 3, after excluding those with confounding diagnoses for pneumoconiosis, was 30, 10, and 2 cases, respectively. ILO category was related to age, duration of current employment, and cumulative respirable dust and quartz levels, as well as to decrement in ventilatory function.
Journal of Occupational Medicine, Oct. 1988, Vol.30, No.10, p.780-784. Illus. 12 ref.
Gaas V.K., Merkulov S.D.
Testing means of dust control
Ispytanie sredstv bor'by s pyl'ju [en ruso]
Field experiments with a combine showed that placement of spray nozzles on the combine and on the supports in such a way that the spray creates a current of air parallel to the working face limits the spread of dust and facilitates its removal from the air without increasing water consumption.
Ugol', Apr. 1988, No.4, p.48-49. Illus.
Development of a device for the purification of exhaust gases
Razrabotka ustrojstva dlja obezvreživanija otrabotavših gazov [en ruso]
Description of a system for channeling exhaust from the motors of dump trucks through the walls of the body and into the load. Filtration of the gases through the load, as well as adsorption and chemical reaction of pollutants on the surface of the material, reduces carbon monoxide and nitrogen oxide levels by 20-40% under average conditions; in winter and under humid conditions, removal of nitrogen oxides is even more thorough.
Gornyj žurnal, Apr. 1988, No.4, p.57-59. Illus. 2 ref.
Mody V., Jakhete R.
Dust control handbook
Manual of information on dust control engineering techniques for metal and nonmetal mineral processing; much of the technology is applicable elsewhere. Dust formation, its prevention, wet and dry control systems, personal protection, testing methods and ways of estimating costs are covered. The manual is intended for maintenance foremen; plant engineers, mill supervisors and plant safety directors.
Noyes Data Corporation, Mill Road at Grand Avenue, Park Ridge, NJ 07656, USA, 1988. 213p. Illus. Bibl. Price: USD 39.00.
Waxweiler R.J., Zumwalde R.D., Ness G.O., Brown D.P.
A retrospective cohort mortality study of males mining and milling attapulgite clay
To evaluate the possible health effects of occupational exposure to a non-asbestos mineral fibre, a cohort of 2,302 males employed for at least 1 month between 1940 and 1975 at an attapulgite (clay fibre) mining and milling facility was followed through 1975. A significant deficit of mortality (SMR = 43; 90% CI 23-76) from non-malignant respiratory disease (NMRD) was observed for the cohort based on age-, calendar year-, and race-specific rates for US males. A marked deficit of NMRD was seen regardless of presumed dust exposure level, induction-latency period, or length of employment. A statistically significant excess of mortality from lung cancer was observed among whites (SMR = 193; 90% CI 121-293), but a deficit occurred among non-whites (SMR = 53; 90% CI 21-112). Lung cancer risk in either race was not altered substantially with presumed dust exposure level, induction-latency period, or duration employed with one exception - those employed for at least 5yrs in high-exposure-level jobs.
American Journal of Industrial Medicine, 1988, Vol.13, No.3, p.305-315. 19 ref.
Goodfield M.J.D., Saihan E.M.
Fragrance sensitivity in coal miners
In a prospective study, the incidence of fragrance sensitivity in Nottinghamshire coal miners was examined. Results confirmed previous reports of an increased incidence of such sensitivity in miners (45%) when compared with both male (20%) and female (13%) non-miners. This increased incidence is not related to an increased use of perfumed cosmetics, but may be related to the use of a highly perfumed body lotion in subjects who already have a high incidence of irritant hand eczema. There was no significant increase in the rate of positive reactions to other applied allergens.
Contact Dermatitis, Feb. 1988, Vol.18, No.2, p.81-83. 5 ref.
Poturaev V.N., Mjaken'kij V.I.
Use of a microbiological method of methane oxidation in mine workings
Primenenie mikrobiologičeskogo sposoba okislenija metana v vyrabotannom prostranstve [en ruso]
Methane-oxidising bacteria (species unspecified) grown on a large scale for feed supplements were suspended in mine water containing approprite nutrients. The suspension was sprayed on piles of coal in workings. In the case of one seam, spraying a 25m-long pile once a day for 23 days reduced methane output from the collected coal from 8.75 to 6.61m3/t and reduced ambient methane concentrations from 0.9-1% to 0.66%, which enabled an increase in coal output from 768t/day to 922t/day. For the 9 test sites as a whole, methane output from the mined coal was reduced by 40-60%.
Ugol' Ukrainy, Mar. 1988, No.3, p.32-33. 5 ref.
Marras W.S., Bobick T.G., Lavender S.A., Rockwell T.H., Lundquist R.L.
Risks of hand tool injury in US underground mining from 1978 through 1983. Part I: Coal mining
This review was performed by evaluating injuries recorded in the Mine Safety and Health Administration's Safety and Health Technology Center database. It identified the injury-component sequences that were most frequent and those sequences that were most severe as measured by days lost from work. The analysis showed that injuries associated with the scaling bar and jack were responsible for over half of all lost days resulting from hand tool-related injuries. Almost 90% of all lost days due to hand tool-related injuries are accounted for if the bar, hammer/axe, and pneumatic drill are also included. The sequence of injury-component events that results in an increased risk of injury from these tools and the ergonomic changes that may reduce these risks are discussed.
Journal of Safety Research, Summer 1988, Vol.19, No.2, p.71-85. Illus. 11 ref.
Corbett S., O'Neill B.J.
A cluster of cases of lymphoma in an underground colliery
An apparent occupational outbreak of cases of non-Hodgkin's lymphoma among the employees of an underground colliery on the New South Wales (Australia) south coast was investigated. The employment register of the mine recorded that 1004 men had worked at the colliery from its opening in 1946 until Dec 31, 1986. In this period, this cohort of men had amassed 18,818 person-years. A person-years analysis of the mortality and morbidity due to cancer showed a standardised incidence ratio for non-Hodgkin's lymphoma of 3.27 (95% confidence interval [CI], 1.31-6.74) and for Hodgkin's disease of 7.27 (95% CI, 1.98-18.59). All of the cases of non-Hodgkin's lymphoma were diagnosed after 1978. An excess of cases of cancer of the salivary gland was also present (standardised incidence ratio, 10.00; 95% CI, 1.21-36.10). No plausible carcinogen was identified in the colliery.
Medical Journal of Australia, 15 Aug. 1988, Vol.149, No.4, p.178-185. Illus. 36 ref.
Musk A.W., de Klerk N.H., Cookson W.O.C., Morgan W.K.C.
Radiographic abnormalities and duration of employment in Western Australian iron-ore miners
Plain chest radiographs of 788 Pilbara iron-ore miners from Western Australia were examined by two independent observers for evidence of pneumoconiosis. The prevalence of any radiographic abnormality (a profusion grade of 0/1 or greater on the International Labour Office [ILO] scale) was 6.7% for Reader 1 and 9.9% for Reader 2. The prevalence of a definite radiographic abnormality (a profusion grade of 1/0 or greater on the ILO scale) was 1.9% for Reader 1 and 2.8% for Reader 2. The prevalence of any abnormality, as identified by either or by both observers, was significantly related to age. The relationship between a radiographic abnormality and the duration of employment was less clear. The results indicate a need for more detailed and comprehensive studies of the effects of iron-ore dust in this industry.
Medical Journal of Australia, 4 Apr. 1988, Vol. 148, No.7, p.332-334. Illus. 28 ref.
OSERP-2K speed limiter for mine elevators
Ograničitel' skorosti OSĖRP-2K šahtnyh pod"emnyh mašin [en ruso]
Description and circuit diagram of a speed-limiting device for lifts operating over heights up to 2000m at speeds up to 16m/s. The device has 2 electromagnetic sensors that monitor the speed of the winding machinery. Analog electronic circuits compare the voltages output by the sensors with set points for different operating regimes (transport of personnel, transport of other loads, testing). In the case of excessive acceleration or speed, relays open and shut off power to the lifting equipment. The device also continuously monitors the condition of critical components in its own circuitry.
Bezopasnost' truda v promyšlennosti, Apr. 1988, No.4, p.59-61. Illus.
Conclusions of this evaluation: (1) there is no convincing evidence that vanadium is an essential element for man; (2) there is a dose-response relationship between the concentration of vanadium in air and its irritant effects (rhinitis, bronchitis, eczematous dermatitis); (3) vanadium may be embryotoxic and gonadotoxic.
World Health Organization, Distribution and Sales Service, 1211 Genève 27, Switzerland, 1988. 170p. Illus. Bibl. Price: CHF 19.00.
General report - Coal Mines Committee, Twelfth session, Geneva, 1988
This report covers: obtaining information on tripartite collaboration; training and retraining of coal miners; safety and health (accident and health statistics); age of retirement and benefits; mechanisation and its social consequences; measures taken by the ILO since the 11th session and follow up on specific requests; recent events and developments in the industry; classification of the texts adopted by the committee.
International Labour Office, 1211 Genève 22, Switzerland, 1988. 149p. Illus. Price: CHF 20.00.
Armstrong B.K., De Klerk N.H., Musk A.W., Hobbs M.S.T.
Mortality in miners and millers of crocidolite in Western Australia
6,505 men and 411 women were employed in the mining and milling of crocidolite in a mine in Western Australia between 1943-1966. Employment was usually brief (median duration: 4 months) and exposure intense (median cumulative exposure: 6 fibres/cc yrs). The Standardised Mortality Ratio (SMR) for all causes in men was 1.53. Statistically significant excess death rates were observed in men for neoplasms, particularly malignant mesothelioma (32 deaths), neoplasms of the trachea, bronchus, and lung (SMR 2.64) and of the stomach (SMR 1.90); respiratory diseases, particularly pneumoconiosis (SMR 25.5); infections, particularly tuberculosis (SMR 4.09); mental disorders, particularly alcoholism (SMR 4.87); digestive diseases, particularly peptic ulceration (SMR 2.46) and cirrhosis of the liver (SMR 3.94); and injuries and poisonings, particularly non-transport accidents (SMR 2.36). The excess mortality from pneumoconiosis, malignant mesothelioma, and respiratory cancers, but not stomach neoplasms, was dependent on time since first exposure and on cumulative exposure. There was no significant increase in mortality from laryngeal cancer (SMR 1.09) or neoplasms other than those listed. In women, the SMR for all causes was 1.47 (95% confidence interval 0.98-2.21) and for neoplasms 1.99.
British Journal of Industrial Medicine, Jan. 1988, Vol.45, No.1, p.5-13. Illus. 28 ref.
Improving safety awareness as a management task
Verstärkung des Sicherheitsbewusstseins als unternehmerische Aufgabe [en alemán]
The four most important causes of mining accidents are listed: (1) insufficiently safe equipment, (2) inadequate work organisation, (3) inadequate employee qualification, (4) no or insufficient employee safety awareness. Six measures are presented by which management can motivate safe behaviour among employees: (1) continued safety training, (2) demanding and following a high safety standard, (3) reprimanding hazardous behaviour among employees whenever spotted, (4) placing high priority on safety, (5) holding the opinion that safety enhances productivity, (6) safety competitions to provide renewed impetus to safe behaviour among employees.
Glückauf, 1988, Vol.124, No.3, p.141-144.
Hurych J., Matušek Z.
2nd International Symposium on occupational health and safety in mining and tunnelling
Proceedings of the 2nd International Symposium on Occupational health and safety in mining and tunnelling, held in Prague, Czechoslovakia, 23-26 Sep. 1986. Papers are grouped under the following headings: occupational physiology (heat load, the heat-humidity burden, neuropsychic load, risk factors of ischaemic heart disease); occupational hygiene (dust measurement, lung-dust investigations, vibration); experimental studies; occupational diseases (vibrational injuries, lung diseases, cardiovascular diseases); occupational safety (international accident data, dust suppression, rescue crew operations).
International Section of ISSA for Safety in the Mining Industry, Ostrava, Czechoslovakia, 1987. 425p. Illus. Bibl.
Safety and health in coal mines. Code of practice
Meikuang anquan yu jiankang shiyong guicheng [en chino]
Translation of the ILO code of practice originally abstracted under CIS 86-802. It is intended to help those responsible for improving safety and health standards and to provide guidelines for the drafting of safety and health regulations for the coalmining industry. It contains provisions on general safety and health measures, specific measures for work underground, road and shaft driving, coal-getting, transport, etc., and procedures for the control of dust, firedamp, fire and other hazards. Local circumstances and technical facilities will determine how far it is practicable to follow these provisions.
Ministry of Labour Publications Division, No.12 Hepingli Zhongjie, Beijing, China, Apr. 1987. 135p. Price: CNY 1.50.
Grand Duchy of Luxembourg. Labour and Mine Inspectorate - Annual report 1987
Grand-Duché de Luxembourg. Inspection du travail et des mines - Rapport annuel 1987 [en francés]
Among other items, this report gives information on working hours, night work, safety and health in plants, electrical safety and explosives used in mines. One chapter deals with occupational accidents: statistics on fatal accidents, accidents in all branches of industry in Luxembourg, accidents in the iron and steel industry.
Inspection du travail et des mines, Boîte postale 27, 2010 Luxembourg, Grand Duchy of Luxembourg, 1987. 83p.
Guide to occupational hygiene
Rukovodstvo po gigiene truda [en ruso]
Second of 2 volumes addressed to industrial physicians, specialists in occupational medicine, plant physicians and other medical personnel. Vol.2 is arranged in 16 chapters devoted to occupational hygiene problems in the following industries: mining; coal-mining (opencast and underground); iron and steel (sintering and iron-ore pellet plants, cakes and by-products, blast-furnace processes, steelmaking, ferroalloy smelting processes etc.); non-ferrous metals (manufacturing of alumina, aluminium, copper, lead, mercury, zinc etc.); machinery (foundry, press forging, heat-treating, machine shops etc.); electronics; chemicals; oil and gas extraction and refining; microbiology; synthetic polymers (plastics, man-made fibers, synthetic rubber, rubber products); construction and building materials; asbestos processing; textiles and light industry (textile, clothing, leather goods, shoe making); wood, pulp and paper, woodworking; printing; work with ionising radiation (nuclear power plants, radioactive sources, x-ray equipment, particle accelerators, etc.).
Izdatel'stvo "Medicina", Petroverigskij per. 6/8, 101000 Moskva, USSR, 1987. Vol.2, 446p. 58 ref. Price: SUR 1.90.
Safety in mines research
La sécurité dans la recherche minière [en francés]
Proceedings of an international conference of Safety in Mines Research Institutes held in Beijing, China, in 1987. Topics covered: ventilation and gases; prevention and suppression of explosions; mine fire prevention and control; environmental protection and instruments for environmental monitoring; strata and rock burst control; mine water prevention and control; hoisting and transport; safety in blasting operation; safety techniques for electric equipment; application of system engineering in mine safety.
China Coal Industry Publishing House, Beijing, Peoples Republic of China, 1987. 1220p. Illus.
Graves R.J., Graveling R.A.
Notes of guidance for the health and safety executive on working in hot conditions in mining
These guidance notes based upon a literature review on working in hot conditions in mining produced by the Institute of Occupational Medicine for the Health and Safety Executive (Great Britain) provide a brief overview of the main factors which need to be considered in determining the likely effects of hot conditions on miners. They also provide some guidance on the practical issues facing the Inspector or other official in interpreting the results of measurements which are taken during an initial evaluation. The notes should not be regarded as constituting a code of practice although many of the elements of such a code are contained within them.
Institute of Occupational Medicine, 8 Roxburgh Place, Edinburgh EH8 9SU, United Kingdom, 1987. 19p. Appendix. Price: GBP 20.00 (in the UK), GBP 25.00 (Overseas).
Cashdollar K.L., Hertzberg M.
Industrial dust explosions
Proceedings of a symposium held in Pittsburgh, Pennsylvania, USA (10-13 June 1986) and sponsored by the ASTM Committee E-27 on Hazard Potential of Chemicals, the US Bureau of Mines and the National Fire Protection Association. The papers presented provided new laboratory and large scale dust explosibility testing, accident investigation data and information on the practical design of preventive and protective measures for industrial equipment.
American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103, USA, Oct. 1987. 363p. Illus. Bibl. Price: GBP 38.00.
Role of pathophysiological disturbances of calcium metabolism in the development of the angiodystonia syndrome of vibration disease
O patofiziologičeskoj roli narušenij obmena kal'cija v razvitii angiodistoničeskogo sindroma vibracionnoj bolezni [en ruso]
Medical examinations of 136 miners with different stages of vibration disease and 30 controls showed distinct and statistically reliable correlation between blood serum concentrations of ionised calcium and indexes of peripheral vascular tension. It was concluded that disturbances of calcium metabolism could contribute to the development of the angiodystonia syndrome of vibration disease.
Gigiena truda i professional'nye zabolevanija, Oct. 1987, No.10, p.21-24. Illus. 14 ref.
Temporary disability in workers exposed to trinitritoluene-containing explosives in open cuts of mining enrichment plants
Zabolevaemost' s vremennoj utratoj trudospsobnosti rabočih pri primenenii trinitrotoluolsoderžaščih vzryvčatyh veščestv v železorudnyh kar'erah gorno-obogatitel'nyh kombinatov [en ruso]
Examination of 606 workers exposed in open mining cuts to air contaminated with trinitrotoluene (TNT)-containing explosives showed temporary disability in 72.2 cases and 1,179.4 lost workdays per 100 workers in comparison with 60.5 cases and 878.4 lost workdays in a control group. This study indicated that nervous diseases, disorders of peripheral ganglia, and diseases of the musculoskeletal system and connective tissue prevailed in TNT-exposed workers. It also revealed that manifestations of skin and subcutaneous tissue diseases and disorders of the digestive and circulatory systems were more pronounced in this group of workers. Temporary disability rates were higher in older workers and in those with prolonged TNT exposure. Preventive measures are recommended.
Gigiena truda i professional'nye zabolevanija, Dec. 1987, No.12, p.40-44. Illus. 8 ref.
Amandus H.E., Piacitelli G.
Dust exposures at US surface coal mines in 1982-1983
Exposures to British Mining Research Establishment corrected respirable dust and respirable quartz at US surface coal mines during 1982-1983 were evaluated from coal mine operator and Mine Safety and Health Administration (MSHA) inspector samples. The average respirable quartz concentration from inspector samples ranged from 0.34-0.49mg/m3 for drilling jobs and 0.18mg/m3 for bulldozer operators. For most other surface coal mine jobs, the average respirable quartz concentration was less than 0.1mg/m3, and the average respirable dust concentration was less than 2mg/m3. The results from the analysis of quartz exposures are consistent with epidemiological results for an increased silicosis risk among drillers. It is unclear, however, whether the MSHA samples provide a representative estimate of the average annual quartz concentration for drillers. There is a need for a greater number of quartz samples to be taken on strip coal miners, particularly on drillers and bulldozer operators.
Archives of Environmental Health, Nov.-Dec. 1987, Vol.42, No.6, p.374-381. 12 ref.
Ontario Ministry of Labour - Occupational Health and Safety Division
Occupational Health and Safety Act and Regulations for Mines and Mining Plants [Canada - Ontario]
In addition to the full text of the Ontario Occupational Health and Safety Act (see CIS 87-730), this publication contains Regulation 694 of the Revised Regulations of Ontario, 1980, as amended by O. Regulations 226/83, 569/83, 365/86, 450/86, 569/86 and 654/86. Main chapter headings of the Regulation: general safety regulations for mines; fire protection; access to workplaces; protection of workers (materials handling, underground and surface operations, molten metal); haulage; explosives; electrical safety; mechanical safety; railroads; mine hoisting plant; working environment.
Ontario Government Bookstore, Publications Services Section, 5th Floor, 880 Bay St., Toronto M7A 1N8, Ont., Canada, Apr. 1987. 330p. Index.
Finkelstein M., Liss G.M., Krammer F., Kusiak R.A.
Mortality among workers receiving compensation awards for silicosis in Ontario 1940-85
The mortality experience of 1,190 miners and 289 surface industry workers receiving workers' compensation awards for silicosis in Ontario since 1940 was studied up to mid-1985. Both groups were found to have a significantly increased mortality from lung cancer (miners' SMR: 230; surface workers' SMR: 302) and stomach cancer (miners' SMR: 188; surface workers' SMR: 366). Adjustment for smoking and country of origin did not explain the excesses observed. The lung cancer findings are consistent with observations from silicosis registries in Europe. Possible explanatory factors are discussed.
British Journal of Industrial Medicine, Sep. 1987, Vol.44, No.9, p.588-594. 25 ref.
Graveling R.A., Mason S., Rushworth A.M., Simpson G.C., Sims M.T.
Utilisation of accident data to improve safety in the human factors aspects of system design
This report based on accident analyses carried out using the accident recording system of the British National Coal Board evaluates the possibility of using accident data to examine human factors contributing to accident causation and to improve human factors aspects of safety. Contents: the existing system for recording and retrieving accident data; the use of the computerised accident information system by British coal area personnel; using the computerised data retrieval systems for obtaining information on human factors related accidents; improving the available human factors information for accident analysis.
Institute of Occupational Medicine, Roxburgh Place, Edinburgh EH8 9SU, United Kingdom, 1987. 73p. Illus. 40 ref. Appendices.
Jacobsen M., Smith T.A., Hurley J.F., Robertson A., Roscrow R.
Respiratory infections in coalminers exposed to nitrogen oxides
This epidemiological study of nearly 20,000 coal miners employed at 9 British coalmines, carried out with the aim to establish whether long-term exposure to low concentrations of nitrogen oxides can increase the susceptibility to respiratory infections, revealed that there was no detectable relationship between indices of respiratory infection and exposure to nitric oxide (NO) and nitrogen dioxide (NO2). The results show that the range of concentrations of these toxic substances to which coalminers were occupationally exposed are similar to those recorded in urban environments and are unlikely to cause an increase in infectious respiratory diseases.
Institute of Occupational Medicine, 8 Roxburgh Place, Edinburgh EH8 9SU, United Kingdom, 1987. 124p. Illus. 45 ref. Appendices.
Ergonomic design handbook for combined drilling and loading machines
This handbook is intended for the designers of combined drilling and loading-out machines as an aid to eliminate or reduce ergonomic operational problems. The data and guidelines presented in it provide: information for a machine design to reach minimum acceptable standards from a theoretical and practical ergonomic viewpoint; the minimum amount of ergonomic data to overcome the operational limitations of this machine; a specially derived set of data incorporating all operational ergonomic compromises; the ergonomic data required to meet National Coal Board basic machine requirements for operator consideration.
Institute of Occupational Medicine, 8 Roxburgh Place, Edinburgh EH8 9SU, United Kingdom, 1987. 137p. Illus.
Hurley J.F., Maclaren W.M.
Dust-related risks of radiological changes in coalminers over a 40-year working life: Report on work commissioned by NIOSH
This study provides estimates, using data from the Pneumoconiosis Field Research (PFR) of the National Coal Board in Britain, of the prevalence of simple pneumoconiosis and progressive massive fibrosis in coalminers at various stages of a 40-year working life. It summarises the methods used in carrying out the commissioned work, and its results. Contents: strategy, methods, subjects and data; estimates of the prevalence of radiological abnormality over a 40-year working life; effect of varying the level of participation in the 5-yearly X-ray scheme; reliability of data and methods; comparisons of current with previous risk estimates; carbon content of coal; transfer factor; relevance to ex-miners; further work.
Institute of Occupational Medicine, 8 Roxburgh Place, Edinburgh EH8 9SU, United Kingdom, 1987. 66p. Illus. 26 ref. Appendices.
Wildblood R., Coleman G.J., Graves R.J., Mason S., Roberts J., Simpson G.C., Weekes J.D.
Commission of the European Communities
Ergonomic factors affecting the safe working environment in coal preparation plants
This report analyses data from research work carried out in British coal preparation plants with the view to study and identify the factors which may be predisposing to a high incidence of accidents.
British Coal Corporation, Headquarters Technical Department, Ashby Road, Stanhope Bretby, Burton-on-Trent, Staffs. DE15 0QD, United Kingdom, 1987. 56p. Illus. Bibl. Appendices.
Howie R.M., Coleman G.C., Graveling R.A., Graves R.G., Nicholl A.G.M., Groat S., Wildblood R., Crawford N.P., Dodgson J.
Development of a powered helmet respirator suitable for use in coalmines
Contents of this report: work programme; ergonomic assessment of the AHG powered helmet respirator (PHR); development of a prototype PHR; development of fan/filter systems, headshells, visor assemblies; specification of the Institute of Occupational Medicine (IOM) prototype PHR; ergonomic assessment of the final IOM prototype PHR; mobility, communication, physiological and wearer acceptance trials.
Institute of Occupational Medicine, Roxburgh Place, Edinburgh EH8 9SU, United Kingdom, 1987. 104p. Illus. 19 ref. Appendices. Price: GBP 10.00.
Crump prevention by forcing water into unmined coal
Zapobieganie tąpaniom przez wtłaczanie wody do calizny węglowej [en polonés]
Examples of crump prevention by forcing water into holes in unmined coal are presented. An attempt was made to determine the extent of crack propagation and establish a criterion of destruction of coal bed structure by forcing water. Destruction of coal bed cohesion limits crump hazard. A model is presented for selecting hydraulic parameters of liquid spreading in the coal bed during water injection. Observations are presented that can be used in practice to limit crump and tremor hazard.
Prace Centralnego instytutu ochrony pracy, 1987, Vol.37, No.133, p.93-106. 8 ref.
International Electrotechnical Commission
Electrical installations for outdoor sites under heavy conditions (including open-cast mines and quarries) - Part 5: Operating requirements
Installations électriques pour chantiers extérieurs soumis à des conditions sévères (y compris mines à ciel ouvert et carrières) - Cinquième partie: Prescriptions fonctionnelles [en francés]
This standard describes the normal operating procedures which should be carried out to ensure the safety of personnel. Clauses cover: restrictions on access by personnel; operations involving personnel working in the vicinity of exposed live parts; movement of vehicles and machinery in the vicinity of overhead lines; operations in the vicinity of collector/trolley wires; alterations in the operation; moving of cables; protection of cables; moving of overhead lines; electric shot-firing operations; fire prevention; additional requirements and precautions (lightning storms, warning notices, removal of guards, long metallic structures); temporary operation of equipment. Measures to minimise the possibility of inadvertent detonation of electrically initiated explosive devices are given in an appendix.
Bureau central de la Commission électrotechnique internationale, 3 rue de Varembé, Case postale 131, 1211 Genève 20, Switzerland, 1987. 23p.
International Electrotechnical Commission
Electrical installations for outdoor sites under heavy conditions (including open-cast mines and quarries) - Part 1: Scope and definitions
Installations électriques pour chantiers extérieurs soumis à des conditions sévères (y compris mines à ciel ouvert et carrières) - Première partie: Domaine d'application et définitions [en francés]
This standard applies to the installation and operation of electrical apparatus and systems associated with outdoor sites under heavy conditions, including opencast mines, quarries, stockpiles, etc. It applies particularly to apparatus and systems used for: winning, stacking and primary processing machinery; secondary processing machinery; transport and conveying systems; pumping and water supply systems; movable railway systems; fixed railway systems (operation only); haulage trucks; power generating and distribution equipment; control, signal, supervisory and communication systems; ancillary equipment. It does not cover temporary places of work in the open such as building sites and earth-moving sites unless the equipment used is similar to that used in surface mining. 63 terms are defined in English and French, with an alphabetical index in each language.
Bureau central de la Commission électrotechnique internationale, 3 rue de Varembé, Case postale 131, 1211 Genève 20, Switzerland, 2nd ed., 1987. 23p. Index.
Ministerio de Minas y Energia
Decreto n°1335 de 1987 mediante el cual se expide el reglamento de seguridad en las labores subterráneas
Law concerning safety in mines and other underground installations. Contents: responsibilities; safety and health committees; registries and plans; ventilation; dust control; support of mineworkings; transportation; explosives; electricity; machinery and tools; fire prevention and firefighting; occupational hygiene (lighting, noise, temperature), personal protective equipment, medical services and rescue equipment and plans; water drainage. Various definitions and standards are appended.
Diario Oficial (Colombia), 23 July 1987, Year 124, No.37.976, p.1-9.
Aleksandrov I.V., Burkov P.A., Ščadov I.M.
New fire-extinguishing and protective compositions based on orthophosphoric acid
Novye plamegasjaščie i profilaktičeskie sostavy na osnove ortofosfornoj kisloty [en ruso]
Aqueous mixtures of orthophosphoric acid (H3PO4) and alkyltrimethylammonium chloride (a cationic surfactant) are effective in preventing spontaneous combustion in opencast coal mines and coal dumps. The properties of different mixtures of the components are presented, and the results of field tests are described.
Ugol', Dec. 1987, No.12, p.50-52. Illus.
Le Bouffant L.
Silicosis and mixed-dust pneumoconiosis - A GERP workshop
Silicose et pneumoconiose à poussières mixtes - Journées d'étude GERP [en francés]
Proceedings of a workshop organised by the GERP (Groupe d'Etude et Recherches sur les Pneumopathies Professionnelles; Research group on occupational lung diseases) (Chantilly, France, 28-30 April 1986). Aspects covered: cellular and biochemical factors in the lung diseases of coalminers; usefulness and limitations of in vivo and in vitro tests; relationship between the physical properties of dust and its health effects; dust-induced fibrosis; immunological and carcinogenic aspects.
Institut national de la santé et de la recherche médicale, INSERM, 101 rue de Tolbiac, 75654 Paris Cedex 13, France, Colloque INSERM, 1987. Vol.155. 599p. Bibl. Price: FRF 300.00.
Swaen G.M.H., Aerdts C.W.H.M., Slangen J.J.M.
Gastric cancer in coalminers: Final report
A matched case-control study was conducted to investigate the risk of gastric cancer in coalminers in the southern part of Limburg (Netherlands). All 683 histologically confirmed cases of gastric cancer in males were identified at the 5 pathology departments in the area. For each case a control patient, free of gastric cancer, was selected matched by date of birth. Of the 1,366 patients enrolled in the study, an occupational history was collected regarding previous employment in a Dutch coal mine. Of the patients with gastric cancer, 28% had been employed as underground workers in a coalmine compared with 25% of the control group. The odds ratio for underground coalmining and gastric cancer was 1.15 (95% confidence limits: 0.89-1.47). The study did not provide support for the hypothesis that underground coalmining increases the risk of gastric cancer.
British Journal of Industrial Medicine, Nov. 1987, Vol.44, No.11, p.777-779. 21 ref.
Hurley J.F., Alexander W.P., Hazledine D.J., Jacobsen M., Maclaren W.M.
Exposure to respirable coalmine dust and incidence of progressive massive fibrosis
Data gathered since 1953 concerning more than 30,000 coalminers were used to study the incidence of progressive massive fibrosis (PMF) in working coalminers in order to estimate the relationship between exposure to dust and incidence of PMF, and to examine how this relationship changes in the presence of coalworkers' simple pneumoconiosis (CWSP). CWSP clearly predisposed to PMF with 5-year attack rates of 13.9%, 12.5%, 4.4% and 0.2% among men with categories 3,2,1 and 0, respectively. Once CWSP category 1 or higher had been attained, those with higher cumulative exposure to dust were not at greater risk of an attack of PMF than other men with the same CWSP category. The results showed that PMF risks are higher among men with high exposure to dust and that minimising of these exposures is the only way of controlling and eliminating PMF.
British Journal of Industrial Medicine, Oct. 1987, Vol.44, No.10, p.661-672. Illus. 35 ref.
Mur J.M., Meyer-Bisch C., Pham Q.T., Massin N., Moulin J.J., Cavelier C., Sadoul P.
Risk of lung cancer among iron ore miners: A proportional mortality study of 1,075 deceased miners in Lorraine, France
A study of 1,075 iron ore miners in Lorraine, France, who died between 1960 and 1976 showed a significant excess of lung cancer mortality. Moreover, proportionate lung cancer mortality increased with the duration of work underground (proportionate mortality ratio = 4.24 for subjects who worked underground for more than 30 years) and was higher among pneumoconiotic (siderotic) miners than among nonpneumoconiotic miners. These results were confirmed by a case-control study nested in the mortality study. Smoking habits could not be estimated retrospectively with sufficient accuracy to be taken into account. Occupational factors may also play a role; radiation exposure can be ruled out, but dust exposure may be considered as an aetiologic factor owing to the relation between siderosis and lung cancer.
Journal of Occupational Medicine, Sep. 1987, Vol.29, No.9, p.762-768. 39 ref.
Ščuckij V.I., Losevskij A.A., Palvanov V.G., Hasanov K.S., Šamukinov A.I.
Fault-protection device for low-voltage mine circuits
Ustrojstvo zaščity ot utečki v nizkovol'tnyh setjah gornyh predprijatij [en ruso]
Description and schematic diagram of a circuit for protection against faults in insulation in low-voltage mine wiring. The transistorised system is more sensitive than the existing system, and monitors its own integrity.
Bezopasnost' truda v promyšlennosti, Apr. 1987, No.4, p.35-36. Illus.
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