BROWNSON: Leading. 4 A.

The helper failed to install 2 adjacent reactor manhead studs with nuts and when charge had been heated to 139F, the lead-asbestos gasket blew out causing the charge to vent.

Mae* poltonlngt fron lead and narcury, for luaple, have bees virtually ellaloated.

Why do certain diseases of the lung lead to inappropriate secretion of an antidiuretic hormone?

Tenneco Plastics has found, in the past, that the presence of water and HCl in monomer stored in steel tanks will lead to the formation of soluble iron salts which will affect heat stability.

.^ The attempt to Tine a correlation between the Impingor end the Bausch tc Lonb Dust Counter lead tc the conclusion that little correlation between the two instruments exists-, particularly in regards to large particle size -as well as in areas of high dust concentrations.

Do you have any information that leads 12 you one way or another to believe that the 13 pelletized asbestos was any less dusty during those 14 processes than open fiber?

The common uses of commercial PCB would not normally lead to its release into the natural environment.

Wilson 500 South Main Street Akron Ohio 44318 Dear Rex Please forgive the for a considerable Now I shall try to delay in answering your letter I have been out of the office length of time - first due to travel and then due to illness answer your questions about asbestos There are several different types of asbestos fiber The main commercial types are chrysotile amosite and crocidolite In the chrysotile industry we have not seen malignant mesothelioma I am speaking from personal experience in the Canadian chrystile production and from information received concerning the African chrysotile Certain authors have claimed that the South African blue crocidolite fiber can lead to mesothelioma I have reviewed their writings and I am not satisfied that their conclusions are scientifically correct affiliation Other authors in this country have stated that they have found pleural mesothe- liomas in asbestos workers Some of these observations may be accurate but many of them I doubt because in talking to certain authors I have found that they have used the term as estosworker for the man's occupation and have not inquired whether or not the man uses asbestos in his work For many years I have noted that the term asbestos worker has been used to designate an individual who works in the insulation trades Asbestos was the original insulating material Today there are several thousand people using glass fibers for insulation for instance the asbestos fiber whatsoever but still are purposes who have no exposure to called asbestos workers because of union this must sound to you and will be I know confusing it not ea fors youy to answer which were submitted to you Briefly as I see it mesotheliomas of the questions in the basic producing companies the pleura noortpetrhietyonoecucmurarien ntohte s ie ne sn ulation trades I do not know but I have my Whether or no answer to the question of how much exposure doubts Therefore I can give you is necessary about asbestos fibers in the air is concerned I think this As far as the question started in South Africa and was added to bears clarification This thought found called asbestos findings in Miami and Pittsburgh when investigators substances bodies in the lung juice at operation or autopsy There are countless that looks like an asbestos which we can inhale and which witlhlatprIodhuacvee ssoemeenthtiongdate have not bothered to body in the lung The reports is due to the fiber and not to identify positively that the asbestos body Dr.

George Wright, a leading medical researcher in the field of asbestos related environmental health problems-- who is the Director of Research at St.

Experts from Industry, Labor, Government and Academic Institutions will participate; Industry representatives will include leading executives of the Johns-liartville Corporation, the Owens-Coming Fibcrglas Corporation, the Certain-teed Products Corporation and others as well tis repro- sentatives of the Quebec Mine Producers Association and the Insula tion Distributor Contractors National Association; Labor represen tatives will include the President and appropriate staff members of the International Association of Heat and Frost Insulators and Asbestos Workers, while interested government agencies will includo the United States Public Health Service and the United States Bureau of Mines.

Contact with 'iupt, Power Plant may lead to Pydraul AC business.

In the pest, crocidoiite and amosite were used far core extensively in ths United States than they are toda% The leading producers of chrysotile liter are Canada and the Soviet Union, uith smaller deposits being found in South Africa, Rhodesia, China, the United States and Italy.

. `- Cooling and heating coils are installed in the ductwork lead ing from the dehumidifier if the,air is to be cooled or heated.

BAKNABA. 8 37.60.91 - 58.14.40 ECV/kw - Prot. 284 j Dear Professor Kehoe, Below are the results of the lead analyses made on duplicates of the samples we sent you on September 14 by air mail: Sample "White flour Maize flour Rice Macaroni Sugar Wine Micrograms Pb per Kilogram 100 70 70 80 140 172 Blood No. 1 Blood No. 2 Blood No. 3 Blood No. 4 Micrograms Pb per 100 grams ,, 44.2 42.6 42.1 44.5 Urine No. 1 Urine No. 2 Urine No. 3 Urine No. 4 Micrograms Pb per litre 44 46 34 43 i> o L'O So Note: Blood samples No. 1 and 2 refer to the same individual and were taken at the same time.