Foundry Dust (1947)

This item is not a research study. It is a set of short notes from a 1947 U.S. Navy safety bulletin, badly damaged in scanning. The first note said good housekeeping, such as regularly removing settled overhead dust, helps control silicosis in foundries. It quoted a Boston Naval Shipyard report that foundry workers complained of overhead deposits dropping when the building vibrated. A laboratory sample listed tin 9.04, lead 2.09, silica 2.64, sulphur 4.50 and copper (figure unreadable), with zinc oxide the remainder and lead, copper and part of the zinc present as sulfides; no units were given. The report linked heavy metal dusts to metal-fume fever. The second note called asbestos dust a health hazard that cannot be overlooked. It urged local ventilation, dust counts, and Navy-specification masks where ventilation was not enough. It quoted a Portsmouth Naval Shipyard, New Hampshire, investigation of an asbestos insulation and pipe-cover section that found a dust count upward of 5 m./cu.ft., an abbreviation the text does not explain. The recommendations were confining the work, proper ventilation, respirators for workers, and instruction in their use.

We wrote this plain-English summary from the full article with the help of AI, and a second AI model checked each sentence against the article. It is not the authors' wording; the abstract and the article are their own account.

From J-M's medical library

This copy comes from the Johns-Manville medical library. It was among the papers J-M kept in its medical library without an index entry.