{"id":1794,"date":"2023-10-27T03:16:21","date_gmt":"2023-10-27T03:16:21","guid":{"rendered":"https:\/\/wp.ccnr.org\/?page_id=1794"},"modified":"2024-02-04T05:47:05","modified_gmt":"2024-02-04T05:47:05","slug":"precautions-needed-in-handling-radioactive-ores","status":"publish","type":"page","link":"https:\/\/wp.ccnr.org\/fr\/precautions-needed-in-handling-radioactive-ores\/","title":{"rendered":"PRECAUTIONS NEEDED IN HANDLING RADIOACTIVE ORES"},"content":{"rendered":"

PRECAUTIONS NEEDED IN HANDLING RADIOACTIVE ORES<\/span><\/h1>\n
\n

C A N A D A<\/big>
\nDEPARTMENT OF MINES<\/span><\/b><\/span><\/p>\n

INVESTIGATIONS IN ORE DRESSING
\nAND METALLURGY<\/b><\/span><\/b><\/span><\/p>\n

1931<\/big><\/big>
\nOTTAWA<\/span><\/h5>\n
\n

 <\/p>\n

”PRECAUTIONS FOR WORKERS
\nIN THE TREATING
\nOF RADIUM ORES”<\/span><\/h1>\n

W. R. McClelland<\/h4>\n

 <\/p>\n

 <\/p>\n

\n

. . . The\u00a0hazards involved in the handling of high-grade radioactive materials<\/span><\/b>\u00a0make necessary the adoption of certain precautions.<\/span><\/span><\/p>\n

Recent investigations in the field of radium poisoning have led to the conclusion that\u00a0<\/span>precautions are necessary even in the handling of substances of low radioactivity<\/span><\/b><\/span>.<\/p>\n

The ingestion of small amounts of radioactive dust or emanation<\/span><\/span><\/b> [i.e. radon] over a long period of time will cause a building up of radioactive material in the body, which <\/span><\/span>\u00a0eventually may have serious consequences<\/span><\/span><\/b>.<\/p>\n

Lung cancer, bone necrosis, and rapid anaemia<\/span><\/b>\u00a0are possible diseases due to the deposition of radioactive substances in the cell tissue or bone structure of the body. . . .<\/span><\/span><\/p>\n

\n

 <\/p>\n

TWO MEMORANDA (1932)<\/span><\/h2>\n

 <\/p>\n

Ottawa, February 10th, 1932<\/b><\/span><\/p>\n

 <\/p>\n\n\n\n\n
From:<\/b><\/td>\nW. B. Timm, Chief, Division of Ore Dressing & Metallurgy<\/b><\/td>\n<\/tr>\n
To:<\/b><\/td>\nDirector, Mines Branch<\/b><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

I beg to submit herewith . . . a memorandum received from Mr. W. R. McClelland, giving a summary of the results of his visit to Dr. Herman Schlundt, University of Missouri, Columbia, Mo., and to Dr. S. C. Lind, University of Minnesota, Minneapolis, Minn., authorities on radioactive elements.<\/b><\/span><\/small><\/p>\n

Respectfully submitted . . .<\/b><\/span><\/small><\/p>\n

\n

Ottawa, February 8th, 1932.<\/span><\/b><\/p>\n

 <\/p>\n\n\n\n\n\n
From:<\/b><\/td>\nW. R. McClelland, Engineer<\/b><\/td>\n<\/tr>\n
To:<\/b><\/td>\nW. B. Timm, Esquire, Chief of Division<\/b><\/td>\n<\/tr>\n
Re:<\/b><\/td>\nVisit to Columbia, Mo., Minneapolis, Minn., and Toronto, Ontario.<\/b><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

The writer spent six days at Columbia . . . in the discussion and study of the\u00a0numerous problems involved in the extraction of radium<\/span><\/b>. Dr. Schlundt has for the past fifteen or more years been actively engaged either in the commercial or scientific study of the radioactive elements.<\/span><\/span><\/p>\n

The commercial crystallizing of both radium and mesothorium salts are being carried out at the University.\u00a0Six persons are actively engaged on some phases of this work<\/span><\/b>, while others are engaged upon further scientific aspects of radioactivity. . . .<\/span><\/span><\/p>\n

The study of precautions in radium refining is receiving very close study<\/span><\/b>\u00a0at the university. Dr. Schlundt is a member of the\u00a0commission appointed by the U.S. Public Health Service on Hazards in the Radium Industry<\/span><\/b>. . . .<\/span><\/span><\/p>\n

It is necessary to adopt very rigorous regulations<\/span><\/b>\u00a0regarding precautions\u00a0and a careful check on all workers<\/span><\/b>\u00a0is maintained. The writer has very full data on this subject obtained from careful observation, personal discussion and a number of published reports and papers.\u00a0The hazard of dust, both as ore or concentrates<\/span><\/b>, was brought to the writer’s attention. . . .<\/span><\/span><\/p>\n

The information obtained covered more or less almost all phases of our investigation and should prove of great value in the work of this Division. . . .<\/span><\/span><\/p>\n

On February 1st the writer visited Dr. S. C. Lind, Director of the School of Chemistry, University of Minnesota. Dr. Lind is recognized as one of the outstanding radioactivity chemists of America. . . .<\/a><\/span><\/span><\/p>\n

He believes that\u00a0precautions against ore dust should be considered<\/span><\/b>\u00a0in view of the high concentration of the Great Bear Lake pitchblende and the\u00a0recent information that a large number of the miners of the Bohemian Mines<\/span><\/b><\/span>\u00a0 [exposed to uranium-bearing ores in Czechoslovakia]<\/span>\u00a0have developed sarcoma of the lung<\/span><\/b>. . . .<\/span><\/span><\/p>\n

On the return journey to Ottawa the writer spent a day in Toronto and interviewed Prof. Burton, head of the Physics Department at the University of Toronto. . . . Prof. Burton kindly offered the services of his laboratory. . . .<\/span><\/span><\/p>\n

A complete detail report of the subjects mentioned in this memorandum are on file<\/span><\/b>. . . .<\/span><\/span><\/p>\n

Respectfully submitted,<\/span><\/span><\/p>\n

W. R. McClelland,
\nEngineer.
\n<\/span><\/span><\/p>\n

 <\/p>\n

\n

 <\/p>\n

[\u00a0Uranium Sub-Directory<\/a>\u00a0]
\n[\u00a0Plutonium Sub-Directory<\/a> ]
\n[\u00a0Findings on Uranium Tailings<\/a> ]<\/p>\n

 <\/p><\/blockquote>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"

PRECAUTIONS NEEDED IN HANDLING RADIOACTIVE ORES C A N A D A DEPARTMENT OF MINES INVESTIGATIONS IN ORE DRESSING AND METALLURGY 1931 OTTAWA   ”PRECAUTIONS FOR WORKERS IN THE TREATING OF RADIUM ORES” W. R. McClelland     . . . The\u00a0hazards involved in the handling of high-grade radioactive materials\u00a0make necessary the adoption of certain …<\/p>\n

PRECAUTIONS NEEDED IN HANDLING RADIOACTIVE ORES<\/span> Lire la suite\u00a0\u00bb<\/a><\/p>","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","footnotes":""},"categories":[18],"tags":[],"class_list":["post-1794","page","type-page","status-publish","hentry","category-reactors"],"_links":{"self":[{"href":"https:\/\/wp.ccnr.org\/fr\/wp-json\/wp\/v2\/pages\/1794","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.ccnr.org\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/wp.ccnr.org\/fr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/wp.ccnr.org\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.ccnr.org\/fr\/wp-json\/wp\/v2\/comments?post=1794"}],"version-history":[{"count":10,"href":"https:\/\/wp.ccnr.org\/fr\/wp-json\/wp\/v2\/pages\/1794\/revisions"}],"predecessor-version":[{"id":2886,"href":"https:\/\/wp.ccnr.org\/fr\/wp-json\/wp\/v2\/pages\/1794\/revisions\/2886"}],"wp:attachment":[{"href":"https:\/\/wp.ccnr.org\/fr\/wp-json\/wp\/v2\/media?parent=1794"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wp.ccnr.org\/fr\/wp-json\/wp\/v2\/categories?post=1794"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wp.ccnr.org\/fr\/wp-json\/wp\/v2\/tags?post=1794"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}