Document 6BnZRE1xweQyNzMgGX1zoMY5R

. : \< '4 vk- , \ ;i -* -. : BEA-92 Jemaiy IS, 1959 Madic&l Department Bureau of Workmen's Coopensetloo Columbus 15, Ohio Rer. 0. D. 9671*9 ) 0* D. 206150 ) . 0. D.106151 ) 0., D. 306152 ) O.D. 6887-22) Jaaoa 0, Caatary Gentlemen! Ths above nuabered claim have bMQ referred to this Division for a further state ment relative to the claimant exposure to silica dost* According to a letter by William L. Wilson, Occupational Hygiene and Hedloal Service*, the claimant had a total of approximately 26 years emplojnaeab with the Touogstovn Sheet and Tube Company in which he was exposed to duet ranging iron 2 to 20 Billion particles per cubic foot of air and containtog a high percentage of free silica. According to 0, D, 106l5l filed against the Koppers Co., Inc., the claimant worked lining blast furnaces and open hearths, oaing fire brick, fraa 19li7 internittentiy through Jenaary 1952. xp*rinc* of this Dirtsloo indicates that he would also be exposed from 2 to 20 rill ion particle* of dust per cubic foot of air and this duot would contain up to 3$t free allies.. The statement appears in the inter-office coraonlcatlon frca Harry L. HoEocver in 0. D. 106151 that the claimant's last "wortc was In construction work whsro build Lai brick ware used and that no exposure to silica dust whatsoever took place to such construct lor. v.-ork". .113 by `-he Industrial Commission, there appears to bs no In to no-iTifction with construction work using building brick. Vary truly youro. DeWitt Huffman Industrial Hygiene So;toeer \\