Document rxxYQ0G4BQka9ewzmpKqrk0xE

,/An m plant fiber handling system has been developed and tested at Jeffrey Mine. It includes a bag breaking station and fiber pump, which conveys the fiber to mixers or weigh hoppers. The entire system requires approximately 3,500 cut c ` .-et of a,r, and costs about S 14,500 plus piping. F-gure 7). k;.de "cm the fiber pump qev?:cpeo at Jeffrey, there are other -terns of equipment on the "'at rm be used to ;-t ; Per Zr.g s ,uo Vo-co 5'cv.er, which has been used at Jeffrey * ' 70 pounds per mcnute / 0-c ,o 7 ber :5 ';?? . --1 .rally and 2.000 `eet ^cnttontaNv, with -a ' n:-' anor unbor do.......... ml CO cn CO CTA O STD5 I 3608 Another Jeffrey development the automatic bag opener, which opens paper or polyethylene dumps the contents 3"d neoosos the empty bag, ah cmce' cwm cc-'.-o; It reqjres SCO cob c minute o' asp mt w e y e-d costs from S9,900 tc S12 500, ceouromg on venous comm s Fairmount En tx-ce of S8.500. necnettstown, N.j , has cev: oped a bag ooeuer at a quoted w ccorct urn to co D'ovver, aup ducts. ! F igure 8), s ,-u enttre cost ot an o :s,,er'` ` oc-' mmohng system mciucmc er s~j a oag baer, s copra., mete , 530,000, o:us the cost of w to riT ffir 8 DUST CONTROL I J I r i o iim o iT = ATCH VEIGHER S T 0 5 I3 6 II Handling- B aggiho Aseas t c 3 Dust colldsTiom A '1 /I /I : 'j (M Bagged A s e e s t c s Du'-JT oollgctiom K / 'I /I ST05 I 3612 / r 5,ST0 13 6 I 3 In the manufacturing plant, bag* of asbestos are opened and fiber handled in ways preventing exposure. smoking. Studies conducted of any as 17,500 asbestos insula s'. orkers show that those who :e have a much greater risk of [acting lung cancer than non:crs in the general public -- that those asbestos industry men who do not now smoke cues and who have never ved regularly, have no greater of lung cancer than the average in the street who does not ce. sthelioma his disease is an extremely rare or of the lining the chest iral) or the abdominal cavity itoneum). It is found more freitly .among those with occupa:1 asbestos exposure than among general population. It also has i found among people who, in past, lived in close proximity to enrolled crocidolite asbestos ts or mines, and even, on rare dons, in the households of ern es who worked in crocidolite -tos factories or mines and pi countably brought substantial .titles of this particular type of nos fiber into their homes on work clothes. This has not been id to be the case with individuals sed only to chrysotile asbestos, h accounts for 97 per cent of asbestos fiber used in the United :s today. ecausc the latent period for mesothelioma ranges from 30 to 45 years, it is impossible at this late date to determine precisely the ex posure levels experienced by these "neighborhood" and "household" cases. However, they were probably quite high by today's standards. In any case, as technology was devel oped for the control of asbestos dust levels, both in the plant and out, these potentially hazardous condi tions have been greaty reduced, if not eliminated. A relatively small number of cases ha-, e also been reported among employees in shipyards and on con struction projects who, while not working directly with asbestos, were exposed to heavy concentrations of air-borne fiber by working in close proximity to those who did. Ex posures of this type have been re duced by strictly enforced industrial safety devices and procedures. Asbestos and the General Public The Asbestos Information Asso ciation North America states: There is no evidence -- ei ther from experience or from scientific research -- that any one in the general public has ever contracted any asbestosrelated disease from exposure to minute amounts of asbestos dust being found in community air, which are many times lower than those levels that have been demonstrated to result in no excess of disease in occupa tionally exposed populations. That conclusion is supported by both the Asbestos Panel of the National Academy of Sciences' Committee on Biologic Effects of Atmospheric Pollutants, and the 33member Advisory Committee on Asbestos Cancers of the Interna tional Agency for Research on Can cer, a division of the World Health Organization. In its 1971 booklet. Asbestos, the Need for and Feasibility of Air Pollution Controls, the NAS Asbes tos Panel, which consisted of seven of the nation's experts on asbestos and health, stated: There is no evidence that persons in the general popula tion -- without occupational, household, or neighborhood exposures -- have any in creased risk of neoplasm, even though there may be ferrug inous bodies or fibers in their lungs. According to the Asbestos In formation Association, the report of the IARC Advisory Committee rep resents the consensus of present world medical opinion on all aspects of the asbestos-health problem. i J 1 cr ST05I36I4 :?os is automatically packaged at the mill and shipped in impermeable bags to .nt dust exposure. (Photos: courtesy Asbestos Information Association/ North ico.) In the manufacturing plant, bogs of asbestos are opened and fiber handled in ways preventing exposure. smoking. Studies conducted of mny as 17,500 asbestos insulaworkers show that those who <e have a much greater risk of racting lung cancer than non<ers in the general public -- that those asbestos industry ;mcn who do not now smoke ettes and who have never red regularly, have no greater of lung cancer than the average in the street who does not ke. othelioma his disease is an extremely rare er of the lining of the chest tral) or the abdominal cavity itoneum). It is found more fre;tly among those with occupatl asbestos exposure than among general population. It also has i found among people who, in past, lived in close proximity to ntrolled crocidolite asbestos ts or mines, and even, on rare sions, in the households of emees who worked in crocidolite stos factories or mines and presumably brought substantial itities of this particular type of stos fiber into their homes on work clothes. This has not been id to be the case with individuals )sed only to chrysotilc asbestos, :h accounts for 97 per cent of asbestos fiber used in the United as today. ecause the latent period for mesothelioma ranges from 30 to 45 years, it is impossible at this late date to determine precisely the ex posure levels experienced by these "neighborhood" and "household" cases. However, they were probably quite high by today's standards. In any case, as technology was devel oped for the control of asbestos dust levels, both in the plant and out, these potentially hazardous condi tions have been greaty reduced, if not eliminated. A relatively small number of cases have also been reported among employees in shipyards and on con struction projects who, while not working directly with asbestos, were exposed to heavy concentrations of air-borne fiber by working in close proximity to those who did. Ex posures of this type have been re duced by strictly enforced industrial safety devices and procedures. Asbestos and the General Public The Asbestos Information Asso ciation/North America states: There is no evidence -- ei ther from experience or from scientific research -- that any one in the general public has ever contracted any asbestosrelated disease from exposure to minute amounts of asbestos dust being found in community air, which are many times lower than those levels that have been demonstrated to result in no excess of disease in occupa tionally exposed populations. That conclusion is supported by both the Asbestos Panel of the National Academy of Sciences' Committee on Biologic Effects of Atmospheric Pollutants, and the 33member Advisory Committee on Asbestos Cancers of the Interna tional Agency for Research on Can cer, a division of the World Health Organization. In its l0'7! booklet, Asbestos, the Seed for and Feasibility of Air Pollution Controls, the NAS Asbes tos Panel, which consisted of seven of the nation's experts on asbestos and health, stated: There is no evidence that persons in the general popula tion -- without occupational, household, or neighborhood exposures -- have any in creased risk of neoplasm, even though there may be ferrug inous bodies or fibers in their lungs. According to the Asbestos In formation Association, the report of the IARC Advisory Committee rep resents the consensus of present world medical opinion on all aspects of the asbestos-health problem. C' 1 f J { fos is automatically packaged at the mill and shipped in impermeable bags to nt dust exposure. (Photos: courtesy Asbestos Information Association/North ca.) In the manufacturing plant, bags of asbestos are opened and fiber handled in ways preventing exposure. smoking. Studies conducted of any as 17,500 asbestos insulaworkers show that those who c have a much greater risk of acting lung cancer than noners in the general public -- that those asbestos industry men who do not now smoke :ttes and who have never ed regularly, have no greater of lung cancer than the average in the street who does not <e. }thelioma tis disease is an extremely rare er of the lining of the chest iral) or the abdominal cavity itoneum). It is found more fre:tly among those with occupa.1 asbestos exposure than among general population. It also has found among people who, in ast, lived in close proximity to ntrolled crocidolite asbestos ts or mines, and even, on rare dons, in the households of emees who worked in crocidolite tos factories or mines and presumably brought substantial tities of this particular type of .tos fiber into their homes on work clothes. This has not been d to be the case with individuals <ed only to chrysotile asbestos, it accounts for 97 per cent of isbestos fiber used in the United ls today. . cause the latent period for mesothelioma ranges from 30 to 45 years, it is impossible at this late date to determine precisely the ex posure levels experienced by these "neighborhood" and "household" cases. However, they were probably quite high by today's standards. In any case, as technology was devel oped for the control of asbestos dust levels, both in the plant and out, these potentially hazardous condi tions have been greaty reduced, if not eliminated. A relatively small number of cases have also been reported among employees in shipyards and on con struction projects who, while not working directly with asbestos, were exposed to heavy concentrations of air-borne fiber by working in close proximity to those who did. Ex posures of this type have been re duced by strictly enforced industrial safety devices and procedures. Asbestos and the General Public The Asbestos Information Asso ciation; North America states: There is no evidence -- ei ther from experience or from scientific research -- that any one in the general public has ever contracted any asbestosrelated disease from exposure to minute amounts of asbestos dust being found in community air, which are many times lower than those levels that have been demonstrated to result in no excess of disease in occupa tionally exposed populations. That conclusion is supported by both the Asbestos Panel of the National Academy of Sciences' Committee on Biologic Effects of Atmospheric Pollutants, and the 33member Advisory Committee on Asbestos Cancers of the Interna tional Agency for Research on Can cer, a division of the World Health Organization. In its 1971 booklet. Asbestos, the Need for and Feasibility of Air Pollution Controls, the NAS Asbes tos Panel, which consisted of seven of the nation's experts on asbestos and health, stated: There is no evidence that persons in the general popula tion -- without occupational, household, or neighborhood exposures -- have any in creased risk of neoplasm, even though there may be ferrug inous bodies or fibers in their lungs. According to the Asbestos In formation Association, the report of the [ARC Advisory Committee rep resents the consensus of present world medical opinion on all aspects of the asbestos-health problem. J ST05I36I5