ga5ag5CS^^7B^ais^gsg^s S4 . - BRITISH JOURNAL OF INDUSTRIAL MEDICINE Table 4 the increase in mortality attributed to lung'canoer CAUSES OF DEATH AMONG MALE ASBESTOS WORKERS COMPARED WITH MORTALITY EXPERIENCE OF ALL MEN IN ENGLAND AND WALES over the past 30 years is certainly due to improvements in diagnosis and in therapy (.Doll, 1933).

INDUSTRIAL MEDICINE AND HYGIENE Edited by E.

52 FRANK A.

138 M.

770 S.

TABLE / (continued) Annual Lung Cancer Death Rato a per .100, 000 Man-Years ol Exposure by Exposure Category v* Expoiare Cfttecorv I a .

es Holmes: Developments in Sampling 295 lh comment* above concerning the possibility of drawing fibers right through the "Otlway" sampler.

418 ASBESTOSIS & CARCINOMA--DUTRA & CARNEY Fig 1 (left) and 2 (right).

'Urre noti 7o pr<f d hyfl logisf le Mil 'g croptig i aabJ ight- resenfi 3UghJ erateSj tive 1| mal I :avegffl udatejj racoti d plel i addljl ter da. t becjl e noffl lecaua usioti recoV ibvio ierve| sedt : year!

638 Reprinted from the Archives of Environmental Health April 1968, Volume 16 Copyright 1968.

at a concentration of 69 mg/m^ revealed on the average In the lungs of rata 0.98 mg of chryBotlle-asbeBtos (at the same time, fiber glass - 8 mg) and established a three times more rapid elimination of chrysotile after the stopping of the dust.

* SUMMARY AND EVALUATION Subject: Discussion of the possible use of materials other than asbestos for auto brakes.

) 12 S.

u S.

BRAKfc LIMING DECOMPOSITION PRODUCTS Id recent years, some individuals have pointed at brake lining wear as a pro bable source of asbestos contamination of the ambient air.