Document n9RbD1gn7qeMpjLX6LJ36NgO1

s_ '.-. v- , DEPARTMENT OE PUdK HEALTH 57 MURRAY STRUT PIBTH to* 04 tw.iBRiniitr p>i: C$t< 3. Boyl&nd, Senior inspector of **ine. ilines Department, KUGOOS u.A. niw~ 2Sth October 1965- Sear Ur. Boyland, X recently visited Australian Blue Ashestee and as pleasantly surprised at many of the improvements bade. However, duet Is still obviously a problem and conditions, whilst ouch better, are still below that achieved in the gold mining Industry. Hew eases of eilicosie and/or aebeetoels are still being diagnosed each year, but there is room to hope that the length of exposure is increasing, and that men nay work for longer periods with less chance of developl^ lung disease. As you know, there has been much erltielsa of the koniaetex as an instrument for dust campling in the asbeetos industry, and ita continued use was only Justified because counts were so high that more sophisticated instruments were unnecessary. X never really subeeribed to this theory. It le Imperative now that acre advanced nethods of dust sampling be used, and X would be grateful If this could resolve eons attention. Dust sampling surveys should include (a) She number of quarts particles of respirable siae, i.e. lees than 5 aicrono. (b) the cumber of fibres of respirable slse, l.e. less than about 40 elevens- ic) Allow some estimate to be made of the individual worker's total exposure. 1 know that your inspectors (ventilation) are efficient and knowledgeable, and X don't wish to interfere in any way with your duties end responsibilities. However, Sr. Gordon Smith, Director of the Occupational Health Section of the CoefsonweeJth Sohool of Hygiene and Xroplcal Kediclne, See South Hales, aceceapaaied se to Bittenooc an* offered to send hie dust sampling inspector, Kr, B. Xiejor, to do a detailed survey of the mine sill at Bitteaooa. X have heard Ur. Uajor spoken of very highly as an expert la this field. His survey would certainly be of value, and 1 think it would be a wonderful opportunity for your inspectors to widen their experience and perhaps develop new techniques, even if, In the end, ycu feel that his nethods are Impracticable and no Improvement on present techniques. She question of cost hasn't been raised, but sty impression is that the Coaujoswealth would finance it. Tnere was no discussion in regard to liming, but a possible time night be Aprtl/Jay 19&6. A good example of the difficulty involved in dust sampling is Stubbe' Conet Uine at Marble Bar. His .. _ * 4 PLAINTIFFS | EXHIBIT 1 WV-04262 WV-004262 4 fcA) DfPASTMiNT OP PUBttC HEALJM 57 MURRAY STRICT PfRTH lc. J/ Boyland. Senior Inspector of iiines,' 'toent. nrriiii*oi Hi tia. mu wa< t>i 2- treataent uill was very dusty in places, tut it is possible that much of tbs dust is cooparatively baruleas because of the absence of ^uorts and tfls nature of tne ore body. four eotfioenta on the above would be greatly appreciated. It ieigbt be that your ventilation inspectors don't feel that any purpose would be served by 2r. Uajor'a visit. Xf so, 1st {Be know. So arrangsaents of any have been a&ds. fours sincerely MWilM